This document discusses recent advances in medical research and longevity, including using graphene implants to treat nervous system diseases, improved diagnostic tools, regenerating blood vessels, protecting mice from obesity and extending lifespan with drugs, observing neural activity in high resolution 3D, positive results from clinical trials for muscular dystrophy, progress on gene therapies for diseases like muscular dystrophy and leukemia, developing wearable electronics and brain-computer interfaces, a potential cure-all antiviral drug, evidence that Alzheimer's may start in the liver, lifestyle changes preventing 50% of Alzheimer's cases, an environmental toxin linked to Alzheimer's and Parkinson's, making heart muscle from stem cells, growing replacement heart parts, and commercializing such products by 2016.
Ataxia is a medical condition which results in the lack of muscle coordination that usually affects voluntary movements such as walking, eye movements, speech, and the patient's ability to swallow.
The document discusses several emerging technologies that have the potential to improve human health and capabilities. It describes brain computer interfaces that allow people to control devices with their minds, technologies like transcranial magnetic stimulation and electrical brain stimulation that can enhance cognitive functions, virtual reality therapy for treating mental illnesses, advanced prosthetics with touch capability, and exoskeletons for regaining mobility. Many of these technologies could help people with disabilities live more independently and improve lives. However, some technologies also have risks like invasiveness, cost, and potential defects. Overall the document argues that these advances will help people achieve better health and lives and contribute to a better society.
Neuro-psychological Factors Leading to Abnormal BehaviourSiddhartha A
This document discusses neuropsychological factors that can lead to abnormal behavior. It begins by defining abnormal behavior and outlining criteria for what constitutes abnormal behavior. It then explains that since the nervous system is core to mental processes, any imbalance or distortion in the nervous system may affect neuropsychological relationships and lead to abnormal behavior. Specifically, it identifies congenital abnormalities, structural disruption of the nervous system, infections affecting the nervous system, and electrochemical imbalances as key neuropsychological factors that can influence abnormal behavior.
The document summarizes recent developments in computing technology including advancements in personal computing devices like improved tablets, TVs, and smartphones as well as societal impacts of technologies like medical diagnostics tools and ways of helping poorer populations using computation. It also discusses emerging technologies like exascale computing capabilities, printable electronics, drone swarms, and NVIDIA's new computer architecture.
Water is abundant on Earth but most is saline and unavailable for human use. Only 3% of the world's water is freshwater, with the majority locked up in ice caps and glaciers. One billion people lack access to safe drinking water and 2.6 billion lack basic sanitation, resulting in half of all hospitalizations from waterborne diseases. Improving access to clean water could save 135 million lives and improve nutrition by wiping out disease vectors. Solutions involve acquiring water through reclamation, extraction, conservation, and purification as well as improving sanitation, distribution, and irrigation infrastructure.
This document provides a summary of developments in various device technologies. It mentions that photonic crystals could be used as an alternative to batteries at high temperatures. It also describes a new terahertz polarizer that can pass 100% or block 99% of signals, with potential applications for security and communications. Additionally, it lists several applications of metamaterials such as negative refraction and phase holograms in the infrared spectrum. The document briefly outlines new developments in chips, data storage, 3D printing, and other electronics technologies.
This document provides an overview of energy news from July 2011, including summaries of nuclear, oil, and green energy topics. For nuclear, it discusses cheaper uranium extraction methods and China's pebble bed reactors. For oil, it lists the top oil-producing countries and their reserves, and discusses Canadian oil sands projects and a large oil discovery in Brazil. For green energy, it outlines new technologies to boost solar power and funding for new wind turbine designs, and reports a rise in global green energy investments.
The document provides brief updates on several space missions and projects, including the Dawn spacecraft continuing its study of asteroids, MIT developing micro-thrusters for spacecraft, an experimental scramjet aircraft being lost in the Pacific Ocean during a test flight, the Curiosity rover starting to drive on Mars and use its laser-shooting instrument to analyze rocks, and SpaceX planning to launch a weather satellite for NOAA.
Ataxia is a medical condition which results in the lack of muscle coordination that usually affects voluntary movements such as walking, eye movements, speech, and the patient's ability to swallow.
The document discusses several emerging technologies that have the potential to improve human health and capabilities. It describes brain computer interfaces that allow people to control devices with their minds, technologies like transcranial magnetic stimulation and electrical brain stimulation that can enhance cognitive functions, virtual reality therapy for treating mental illnesses, advanced prosthetics with touch capability, and exoskeletons for regaining mobility. Many of these technologies could help people with disabilities live more independently and improve lives. However, some technologies also have risks like invasiveness, cost, and potential defects. Overall the document argues that these advances will help people achieve better health and lives and contribute to a better society.
Neuro-psychological Factors Leading to Abnormal BehaviourSiddhartha A
This document discusses neuropsychological factors that can lead to abnormal behavior. It begins by defining abnormal behavior and outlining criteria for what constitutes abnormal behavior. It then explains that since the nervous system is core to mental processes, any imbalance or distortion in the nervous system may affect neuropsychological relationships and lead to abnormal behavior. Specifically, it identifies congenital abnormalities, structural disruption of the nervous system, infections affecting the nervous system, and electrochemical imbalances as key neuropsychological factors that can influence abnormal behavior.
The document summarizes recent developments in computing technology including advancements in personal computing devices like improved tablets, TVs, and smartphones as well as societal impacts of technologies like medical diagnostics tools and ways of helping poorer populations using computation. It also discusses emerging technologies like exascale computing capabilities, printable electronics, drone swarms, and NVIDIA's new computer architecture.
Water is abundant on Earth but most is saline and unavailable for human use. Only 3% of the world's water is freshwater, with the majority locked up in ice caps and glaciers. One billion people lack access to safe drinking water and 2.6 billion lack basic sanitation, resulting in half of all hospitalizations from waterborne diseases. Improving access to clean water could save 135 million lives and improve nutrition by wiping out disease vectors. Solutions involve acquiring water through reclamation, extraction, conservation, and purification as well as improving sanitation, distribution, and irrigation infrastructure.
This document provides a summary of developments in various device technologies. It mentions that photonic crystals could be used as an alternative to batteries at high temperatures. It also describes a new terahertz polarizer that can pass 100% or block 99% of signals, with potential applications for security and communications. Additionally, it lists several applications of metamaterials such as negative refraction and phase holograms in the infrared spectrum. The document briefly outlines new developments in chips, data storage, 3D printing, and other electronics technologies.
This document provides an overview of energy news from July 2011, including summaries of nuclear, oil, and green energy topics. For nuclear, it discusses cheaper uranium extraction methods and China's pebble bed reactors. For oil, it lists the top oil-producing countries and their reserves, and discusses Canadian oil sands projects and a large oil discovery in Brazil. For green energy, it outlines new technologies to boost solar power and funding for new wind turbine designs, and reports a rise in global green energy investments.
The document provides brief updates on several space missions and projects, including the Dawn spacecraft continuing its study of asteroids, MIT developing micro-thrusters for spacecraft, an experimental scramjet aircraft being lost in the Pacific Ocean during a test flight, the Curiosity rover starting to drive on Mars and use its laser-shooting instrument to analyze rocks, and SpaceX planning to launch a weather satellite for NOAA.
This document discusses various medical and health news topics, including:
- Brain function starts declining at age 45 and ways to address this through exercise.
- New cancer screening tests that are 83% accurate and treatments using light scalpels or targeting single proteins.
- Developments in treating various cancers, regenerating nerve and heart cells, managing diabetes and autoimmune disorders.
- Potential uses of spider silk for brain implants, artificial corneas due to its strength and flexibility without immune responses.
This document describes a heart disease and stroke prevention program from Cenegenics Medical Institute. The program uses advanced testing methods like genetic screening, ultrasound scans, and blood/urine biomarkers to comprehensively assess cardiovascular risk factors beyond what standard tests provide. It aims to prevent heart attacks, strokes, and other issues by identifying risks early. The evaluation involves blood draws, scans, and a physician consultation to review results and create a prevention plan. The program highlights its unique combination of advanced testing from partner laboratories to provide the most thorough risk assessment available.
The document discusses cardiovascular disease as the number one killer in the US and how nitric oxide and arginine can help reduce risks. It summarizes that nitric oxide dilates blood vessels and increases blood flow, protecting the heart. Studies show arginine increases nitric oxide levels and improves outcomes for conditions like high blood pressure, cholesterol, diabetes and more. The summary encourages taking arginine supplements which are a low-cost way to support cardiovascular health versus expensive medical treatments.
Fotuhi _ JHH GR _ 21 Jan 2010 Final_ pptMajid Fotuhi
Majid Fotuhi discusses the limitations of current Alzheimer's disease diagnostic criteria for the oldest old. He explains that amyloid plaques and neurofibrillary tangles, which are used to diagnose Alzheimer's, do not differentiate dementia from normal aging in those over 80 years old. Multiple factors contribute to late-life dementia, including vascular lesions, sleep apnea, obesity, and head trauma. Prevention strategies focus on lifestyle factors like diet, exercise, cognitive stimulation, and managing vascular risk factors.
The document discusses various topics related to brain health and trauma, including:
- The human brain contains hundreds of billions of neurons and synaptic connections that can process information rapidly.
- Trauma and certain disorders can cause permanent changes to brain structure and function, including conditions like Alzheimer's, Parkinson's, depression, and post-traumatic stress.
- The hippocampus plays a role in many functions including pleasure, rage, emotions, and is involved in mood disorders like depression and bipolar disorder. It has been found to be smaller in people with these conditions.
- Repeated head injuries increase the risk of chronic traumatic encephalopathy, while injuries to the upper neck can cause symptoms of multiple sclerosis and Parkinson's disease
Debate: Neurocritical Care Improves Outcomes in Severe TBISMACC Conference
Martin Smith and Mark Wilson debate whether neurocritical care improves outcomes in severe TBI.
Martin argues in favour of neurocritical care.
He concedes that longstanding and established practices are not as efficacious or innocuous as previously believed.
Very few specific interventions have been shown to improve outcomes in large randomised controlled trials. With the possible exception of avoidance of hypotension and hypoxaemia, most are based on analysis of physiology and pathophysiology.
Further, the substantial temporal and regional pathophysiological heterogeneity after TBI means that some interventions may be ineffective, unnecessary, or even harmful in certain patients at certain times.
Martin however, contends that improved understanding of pathophysiology and advances in neuromonitoring and imaging techniques have led to more effective and individualised treatment strategies. Ultimately, this has led to improved outcomes for patients.
In particular, the sole goal of identifying and treating intracranial hypertension has been superseded by a focus on the prevention of secondary brain insults. This is done by using a systematic, stepwise approach to maintenance of adequate cerebral perfusion and oxygenation.
Similarly, multimodal neuromonitoring also gives clinicians confidence to withhold potentially dangerous therapy. Particuarly in those with no evidence of brain ischemia/hypoxia or metabolic disturbance.
Mark Wilson on the other hand argues there is no benefit in neurocritical care following severe TBI.
The New England Journal of Medicine has published several articles that demonstrate no benefit from classic neurotrauma interventions (ICP monitoring, cooling, decompression). This is because factors such as ICP and CPP associate with bad outcomes by association rather than causation.
This debate will demonstrate that critical care just complicates things. Evidently, it is high time for the randomised trial between the very best neurocritical care and NOB therapy (Naso-pharyngeal, Oxygen and a Blanket).
Join Martin and Mark as they discuss the pros and cons of neurocritical care in the management of severe TBI.
For more like this, head to our podcast page. #CodaPodcast
The document discusses several potential causes of increased rates of neurological diseases in Western nations. It notes an alarming increase in conditions like Parkinson's, Alzheimer's, dementia, ADD, autism, depression, and bipolar disorder. Some causes proposed include trauma, sedentary lifestyles, artificial sweeteners, pesticides, MSG, vaccinations, and various toxins. It also discusses how certain drugs, deficiencies, and medical conditions can potentially contribute to neurological decline or mimic neurological disorders.
This document discusses stroke, including statistics on its worldwide prevalence, costs, and myths. It notes that one person suffers a stroke every two seconds worldwide. Stroke results in direct costs like medical bills and indirect costs like lost work. Admissions for stroke at CMC hospital have increased annually. The document aims to raise awareness of stroke signs and the importance of timely treatment. It dispels myths such as stroke only affecting the elderly or that nothing can be done to prevent
The document discusses age-related changes in the brain and potential treatments. It notes that aging leads to physiological deterioration over time, including changes at the cellular, tissue, and functional levels that impact health, activities, and risk of diseases like dementia. It then summarizes research finding that dietary saffron and infrared light therapy may provide neuroprotection against conditions like Alzheimer's disease by reducing oxidative stress and improving mitochondrial function.
Brain care with dementia focus June 4, 2023.pptxNeurocare Pro
Our braincare overview of red light therapy and how it's being used to help i treatments of brain issues. for more visit https://neurocarepro.com/brain-care-learning/
This document discusses several topics related to brain health and disease. It provides information on brain facts such as weight and calorie/oxygen consumption. It then discusses Parkinson's disease and links it to toxicities like pesticides and deficiencies like decreased folate. Folate deficiency is specifically linked to increased vulnerability of dopamine neurons. The document also discusses various medications that can cause toxicity and deficiencies leading to conditions like dementia. Overall, it emphasizes the importance of nutrition, avoiding toxins, and considers alternative perspectives on conditions like hypertension.
Creutzfeldt-Jakob disease (CJD) is a fatal brain disorder caused by prion proteins. Prions are abnormal proteins that induce normal proteins to fold abnormally, damaging the brain. CJD symptoms include rapidly progressive dementia and neurological problems. There are four main types - sporadic, inherited, iatrogenic from medical treatment, and variant CJD from "mad cow disease." Currently there are no effective treatments and CJD is always fatal. Researchers are working to better understand prion diseases and develop diagnostic tests and treatments.
1. The document discusses issues related to aging and the brain, including trends showing rising rates of Alzheimer's disease and related conditions as populations age.
2. It explores myths around brain aging and function, noting research has disproven ideas like losing brain cells daily or only using a small part of the brain.
3. The document proposes a wellness model to maintain brain health through lifestyle factors like diet, exercise, mental stimulation and managing stress.
Disease prediction system using python.pptxKeshavRaoPilli
1) Disease prediction using machine learning plays a crucial role in healthcare by enabling early detection of health issues through analyzing large datasets and identifying risk factors.
2) Data is collected from various sources like electronic health records, medical imaging, genomic data, and wearable devices, then preprocessed through cleaning, feature extraction, and normalization.
3) Predictive analytics and machine learning algorithms are used to identify patterns and predict diseases like heart disease, diabetes, and Parkinson's disease from the data, helping improve prevention and treatment.
A stroke occurs when the blood supply to part of the brain is disrupted, depriving brain tissue of oxygen and nutrients. There are two main types of strokes: ischemic, caused by blockage of a blood vessel, and hemorrhagic, caused by a blood vessel rupture. Risk factors include age, gender, race, hypertension, atrial fibrillation, diabetes, and smoking. Symptoms vary depending on the affected brain region but may include weakness, confusion, trouble speaking, and visual issues. Diagnosis involves imaging tests and lab work. Treatment focuses on restoring blood flow acutely and long-term rehabilitation. Lifestyle changes and medication can help prevent strokes.
Encephalopathy is a diffuse disease of the brain that alters brain function or structure. It can be caused by infections, metabolic issues, tumors, trauma, toxins, or lack of oxygen. Symptoms include altered mental state, loss of memory and cognitive ability, personality changes, seizures, and loss of motor function. Diagnostic tests are used to determine the cause.
Intracranial space occupying lesions are tumors or abscesses within the skull that compress brain tissue. They can be caused by primary or metastatic tumors, hemorrhages, abscesses, or cysts. Symptoms include headaches, nausea, seizures, and neurological deficits. Tests like CT, MRI, and biopsy are used to identify the lesion and
The document discusses the rise of non-communicable diseases (NCDs), focusing on neurological conditions like Alzheimer's, dementia, autism, and more. It lists various causes like lifestyle factors, toxins, gut health issues, vaccines, and more. Key points made include that NCDs will bankrupt healthcare systems by 2030, Americans get sick more than others, and conditions like autism and diabetes have sharply increased with the rise of genetically modified foods and food additives. The document also discusses how gut health impacts immunity and the immune system response to foods and vaccines. Various food additives and drugs are also linked to increased disease risk.
This document discusses the rise of non-communicable diseases (NCDs) and their causes. It notes an alarming increase in neurological diseases like Parkinson's, Alzheimer's, dementia, autism, and more. It attributes these increases to factors like a sedentary lifestyle, artificial sweeteners, pesticides, MSG, vaccines, gut dysbiosis, vitamin D deficiency, and electromagnetic radiation. The rise of NCDs is predicted to bankrupt healthcare systems by 2030. Several drugs and food additives are also discussed as potentially contributing to conditions like heart disease, cancer, and neurological disorders. The document explores links between these environmental triggers, gut health, and immune function.
Personalized medicine uses a person's genetic information to guide disease prevention, diagnosis, and treatment decisions. Pharmacogenomics studies how a person's genetic variations affect their response to drugs, allowing doctors to select medications and doses tailored to an individual. For example, genetic testing can identify patients likely to experience dangerous reactions to certain drugs like carbamazepine and abacavir, allowing doctors to prescribe alternative medications. New technologies like bioelectronic medicines, 3D printing, and telepharmacy further enable personalized approaches through localized drug delivery, customized dosing, and remote care.
The document provides a summary of various science and technology news including declining jobs, 3D telepresence technology, graphene circuits, an aberration free lens, cheap 3D sensing, and an energy efficient 64-core processor. It also discusses optical vortices and interference patterns, and introduces a wave glider surfing robot.
A space pier using reusable rockets may be more feasible than a space elevator for providing cheaper access to geosynchronous orbit. While a space elevator faces serious material challenges due to its length, a space pier concept using 100km towers in space could utilize less exotic materials and avoid the difficulties of an elevator reaching from the ground to space.
This document discusses various medical and health news topics, including:
- Brain function starts declining at age 45 and ways to address this through exercise.
- New cancer screening tests that are 83% accurate and treatments using light scalpels or targeting single proteins.
- Developments in treating various cancers, regenerating nerve and heart cells, managing diabetes and autoimmune disorders.
- Potential uses of spider silk for brain implants, artificial corneas due to its strength and flexibility without immune responses.
This document describes a heart disease and stroke prevention program from Cenegenics Medical Institute. The program uses advanced testing methods like genetic screening, ultrasound scans, and blood/urine biomarkers to comprehensively assess cardiovascular risk factors beyond what standard tests provide. It aims to prevent heart attacks, strokes, and other issues by identifying risks early. The evaluation involves blood draws, scans, and a physician consultation to review results and create a prevention plan. The program highlights its unique combination of advanced testing from partner laboratories to provide the most thorough risk assessment available.
The document discusses cardiovascular disease as the number one killer in the US and how nitric oxide and arginine can help reduce risks. It summarizes that nitric oxide dilates blood vessels and increases blood flow, protecting the heart. Studies show arginine increases nitric oxide levels and improves outcomes for conditions like high blood pressure, cholesterol, diabetes and more. The summary encourages taking arginine supplements which are a low-cost way to support cardiovascular health versus expensive medical treatments.
Fotuhi _ JHH GR _ 21 Jan 2010 Final_ pptMajid Fotuhi
Majid Fotuhi discusses the limitations of current Alzheimer's disease diagnostic criteria for the oldest old. He explains that amyloid plaques and neurofibrillary tangles, which are used to diagnose Alzheimer's, do not differentiate dementia from normal aging in those over 80 years old. Multiple factors contribute to late-life dementia, including vascular lesions, sleep apnea, obesity, and head trauma. Prevention strategies focus on lifestyle factors like diet, exercise, cognitive stimulation, and managing vascular risk factors.
The document discusses various topics related to brain health and trauma, including:
- The human brain contains hundreds of billions of neurons and synaptic connections that can process information rapidly.
- Trauma and certain disorders can cause permanent changes to brain structure and function, including conditions like Alzheimer's, Parkinson's, depression, and post-traumatic stress.
- The hippocampus plays a role in many functions including pleasure, rage, emotions, and is involved in mood disorders like depression and bipolar disorder. It has been found to be smaller in people with these conditions.
- Repeated head injuries increase the risk of chronic traumatic encephalopathy, while injuries to the upper neck can cause symptoms of multiple sclerosis and Parkinson's disease
Debate: Neurocritical Care Improves Outcomes in Severe TBISMACC Conference
Martin Smith and Mark Wilson debate whether neurocritical care improves outcomes in severe TBI.
Martin argues in favour of neurocritical care.
He concedes that longstanding and established practices are not as efficacious or innocuous as previously believed.
Very few specific interventions have been shown to improve outcomes in large randomised controlled trials. With the possible exception of avoidance of hypotension and hypoxaemia, most are based on analysis of physiology and pathophysiology.
Further, the substantial temporal and regional pathophysiological heterogeneity after TBI means that some interventions may be ineffective, unnecessary, or even harmful in certain patients at certain times.
Martin however, contends that improved understanding of pathophysiology and advances in neuromonitoring and imaging techniques have led to more effective and individualised treatment strategies. Ultimately, this has led to improved outcomes for patients.
In particular, the sole goal of identifying and treating intracranial hypertension has been superseded by a focus on the prevention of secondary brain insults. This is done by using a systematic, stepwise approach to maintenance of adequate cerebral perfusion and oxygenation.
Similarly, multimodal neuromonitoring also gives clinicians confidence to withhold potentially dangerous therapy. Particuarly in those with no evidence of brain ischemia/hypoxia or metabolic disturbance.
Mark Wilson on the other hand argues there is no benefit in neurocritical care following severe TBI.
The New England Journal of Medicine has published several articles that demonstrate no benefit from classic neurotrauma interventions (ICP monitoring, cooling, decompression). This is because factors such as ICP and CPP associate with bad outcomes by association rather than causation.
This debate will demonstrate that critical care just complicates things. Evidently, it is high time for the randomised trial between the very best neurocritical care and NOB therapy (Naso-pharyngeal, Oxygen and a Blanket).
Join Martin and Mark as they discuss the pros and cons of neurocritical care in the management of severe TBI.
For more like this, head to our podcast page. #CodaPodcast
The document discusses several potential causes of increased rates of neurological diseases in Western nations. It notes an alarming increase in conditions like Parkinson's, Alzheimer's, dementia, ADD, autism, depression, and bipolar disorder. Some causes proposed include trauma, sedentary lifestyles, artificial sweeteners, pesticides, MSG, vaccinations, and various toxins. It also discusses how certain drugs, deficiencies, and medical conditions can potentially contribute to neurological decline or mimic neurological disorders.
This document discusses stroke, including statistics on its worldwide prevalence, costs, and myths. It notes that one person suffers a stroke every two seconds worldwide. Stroke results in direct costs like medical bills and indirect costs like lost work. Admissions for stroke at CMC hospital have increased annually. The document aims to raise awareness of stroke signs and the importance of timely treatment. It dispels myths such as stroke only affecting the elderly or that nothing can be done to prevent
The document discusses age-related changes in the brain and potential treatments. It notes that aging leads to physiological deterioration over time, including changes at the cellular, tissue, and functional levels that impact health, activities, and risk of diseases like dementia. It then summarizes research finding that dietary saffron and infrared light therapy may provide neuroprotection against conditions like Alzheimer's disease by reducing oxidative stress and improving mitochondrial function.
Brain care with dementia focus June 4, 2023.pptxNeurocare Pro
Our braincare overview of red light therapy and how it's being used to help i treatments of brain issues. for more visit https://neurocarepro.com/brain-care-learning/
This document discusses several topics related to brain health and disease. It provides information on brain facts such as weight and calorie/oxygen consumption. It then discusses Parkinson's disease and links it to toxicities like pesticides and deficiencies like decreased folate. Folate deficiency is specifically linked to increased vulnerability of dopamine neurons. The document also discusses various medications that can cause toxicity and deficiencies leading to conditions like dementia. Overall, it emphasizes the importance of nutrition, avoiding toxins, and considers alternative perspectives on conditions like hypertension.
Creutzfeldt-Jakob disease (CJD) is a fatal brain disorder caused by prion proteins. Prions are abnormal proteins that induce normal proteins to fold abnormally, damaging the brain. CJD symptoms include rapidly progressive dementia and neurological problems. There are four main types - sporadic, inherited, iatrogenic from medical treatment, and variant CJD from "mad cow disease." Currently there are no effective treatments and CJD is always fatal. Researchers are working to better understand prion diseases and develop diagnostic tests and treatments.
1. The document discusses issues related to aging and the brain, including trends showing rising rates of Alzheimer's disease and related conditions as populations age.
2. It explores myths around brain aging and function, noting research has disproven ideas like losing brain cells daily or only using a small part of the brain.
3. The document proposes a wellness model to maintain brain health through lifestyle factors like diet, exercise, mental stimulation and managing stress.
Disease prediction system using python.pptxKeshavRaoPilli
1) Disease prediction using machine learning plays a crucial role in healthcare by enabling early detection of health issues through analyzing large datasets and identifying risk factors.
2) Data is collected from various sources like electronic health records, medical imaging, genomic data, and wearable devices, then preprocessed through cleaning, feature extraction, and normalization.
3) Predictive analytics and machine learning algorithms are used to identify patterns and predict diseases like heart disease, diabetes, and Parkinson's disease from the data, helping improve prevention and treatment.
A stroke occurs when the blood supply to part of the brain is disrupted, depriving brain tissue of oxygen and nutrients. There are two main types of strokes: ischemic, caused by blockage of a blood vessel, and hemorrhagic, caused by a blood vessel rupture. Risk factors include age, gender, race, hypertension, atrial fibrillation, diabetes, and smoking. Symptoms vary depending on the affected brain region but may include weakness, confusion, trouble speaking, and visual issues. Diagnosis involves imaging tests and lab work. Treatment focuses on restoring blood flow acutely and long-term rehabilitation. Lifestyle changes and medication can help prevent strokes.
Encephalopathy is a diffuse disease of the brain that alters brain function or structure. It can be caused by infections, metabolic issues, tumors, trauma, toxins, or lack of oxygen. Symptoms include altered mental state, loss of memory and cognitive ability, personality changes, seizures, and loss of motor function. Diagnostic tests are used to determine the cause.
Intracranial space occupying lesions are tumors or abscesses within the skull that compress brain tissue. They can be caused by primary or metastatic tumors, hemorrhages, abscesses, or cysts. Symptoms include headaches, nausea, seizures, and neurological deficits. Tests like CT, MRI, and biopsy are used to identify the lesion and
The document discusses the rise of non-communicable diseases (NCDs), focusing on neurological conditions like Alzheimer's, dementia, autism, and more. It lists various causes like lifestyle factors, toxins, gut health issues, vaccines, and more. Key points made include that NCDs will bankrupt healthcare systems by 2030, Americans get sick more than others, and conditions like autism and diabetes have sharply increased with the rise of genetically modified foods and food additives. The document also discusses how gut health impacts immunity and the immune system response to foods and vaccines. Various food additives and drugs are also linked to increased disease risk.
This document discusses the rise of non-communicable diseases (NCDs) and their causes. It notes an alarming increase in neurological diseases like Parkinson's, Alzheimer's, dementia, autism, and more. It attributes these increases to factors like a sedentary lifestyle, artificial sweeteners, pesticides, MSG, vaccines, gut dysbiosis, vitamin D deficiency, and electromagnetic radiation. The rise of NCDs is predicted to bankrupt healthcare systems by 2030. Several drugs and food additives are also discussed as potentially contributing to conditions like heart disease, cancer, and neurological disorders. The document explores links between these environmental triggers, gut health, and immune function.
Personalized medicine uses a person's genetic information to guide disease prevention, diagnosis, and treatment decisions. Pharmacogenomics studies how a person's genetic variations affect their response to drugs, allowing doctors to select medications and doses tailored to an individual. For example, genetic testing can identify patients likely to experience dangerous reactions to certain drugs like carbamazepine and abacavir, allowing doctors to prescribe alternative medications. New technologies like bioelectronic medicines, 3D printing, and telepharmacy further enable personalized approaches through localized drug delivery, customized dosing, and remote care.
The document provides a summary of various science and technology news including declining jobs, 3D telepresence technology, graphene circuits, an aberration free lens, cheap 3D sensing, and an energy efficient 64-core processor. It also discusses optical vortices and interference patterns, and introduces a wave glider surfing robot.
A space pier using reusable rockets may be more feasible than a space elevator for providing cheaper access to geosynchronous orbit. While a space elevator faces serious material challenges due to its length, a space pier concept using 100km towers in space could utilize less exotic materials and avoid the difficulties of an elevator reaching from the ground to space.
The economy is currently experiencing high inflation and a slowing job market. While unemployment remains low, consumer prices are rising sharply and economic growth has weakened in recent months. If inflation is not brought under control and the job market deteriorates further, the country risks entering a recession.
DNA origami is a technique for precisely arranging DNA strands into complex shapes and patterns, at the nanoscale, which can be used to assemble nanomachines. Indoor navigation remains a challenge as GPS signals do not penetrate buildings well. Devices and gadgets continue to push the boundaries of miniaturization and what can be achieved at the nanoscale.
The document summarizes discussions from a recap event on November 4th, 2012. Several speakers addressed topics including advances in health, wealth, violence reduction, technology, AI, longevity research, data access and ownership, and the potential societal impacts of artificial general intelligence. Vernor Vinge discussed multiple scenarios that could lead to a technological singularity, and Peter Norvig's projections from 2007 about hierarchical knowledge representation and machine learning were discussed.
The document discusses several emerging technologies including Autodesk developing CAD software for 3D tissue modeling, creating new materials by recipe, and an air data glove that allows writing in air. It also mentions upcoming smartphone advances like wireless charging standards, flexible displays, and fast growing Asian markets. Additionally, it briefly mentions potential discoveries or applications such as two types of Higgs bosons, generating electricity from tornadoes, over 500 phases of matter, quantum spin liquids, and using focused sound beams as a scalpel.
Voyager 1 has traveled 17 light hours from Earth and is sending back images. Scientists have determined that some planets discovered are potentially more habitable than Earth. Researchers continue developing new propulsion technologies, such as warp drive, to enable faster than light travel.
A new study claims to have smashed a previously believed "quantum limit" by detecting four times lower error rates than thought possible in quantum communication. If true, this could enable higher speed, lower power communication with fewer errors. The article also summarizes the latest developments in wireless technologies including 802.11ac, 802.11ad, LTE Advanced, and experimental technologies capable of transferring data at speeds from 1 Gbps to several terabits per second and even 1 petabit per second over fiber optic cables.
The document discusses the potential economic value of asteroid mining due to the precious metals and other resources contained within asteroids. It notes that a small 10-meter platinum asteroid could be worth $670 billion and even the smallest metallic asteroid identified so far contains over $30 trillion worth of metals. The document also outlines plans to characterize the atmospheres of exoplanets using telescopes by 2020 and new technologies like electric solar sails and mach effect thrusters that could enable deeper space exploration to planets and asteroids.
The document discusses the goals and philosophy of transhumanism, which advocates using technology to enhance human capabilities and abolish involuntary suffering by achieving indefinite life extension, abundant resources through space exploration, and advancing intelligence through both biological and technological means. It outlines concerns about aging populations, resource shortages, and economic crises, and proposes focusing research on anti-aging, artificial intelligence, brain-computer interfaces, and space exploitation to address these challenges. The document asks what individuals can do to help achieve this vision through funding research, building high-tech communities, and using their own skills to collaborate on advancing relevant technologies.
The document discusses several advances in medicine and biotechnology including a solid state gene sequencing machine that is cheaper and faster than previous methods, a technique for sequencing an entire genome from a single cell, a new method for genetic editing, printing an ear, a compound that reverses Alzheimer's symptoms, giving rats infrared vision, a synthetic biology circuit combining memory and logic, using graphene for neural implants, and a large prize for extending human life.
The document discusses intellectual property, including the different types of IP such as copyright, patents, trademarks, and trade secrets. It explores arguments for and against the validity of IP protection, how IP enforcement may further or impede human progress, and concerns about proposed legislation such as the Protect IP Act that could threaten the open internet. Overall, the document examines balancing innovation incentives with limiting unnecessary restraints on creativity and access to knowledge.
This document discusses several private space projects including Virgin Galactic's rocket test, more successful engine tests for Skylon, and private Mars flyby mission. It also lists projects from Icarus Interstellar such as Project Forward, Project Hyperion, Project Persephone, Project Bifrost, The Hellus Experiment, Project Tin Tin, the X-Physics Propulsion & Power Project, and Longshot II.
The document discusses several emerging technologies including multilayer superconductors, quantum refrigerators, ion trap quantum computers that can store one petabyte per square inch, improvements over TCP, table top neutral atom accelerators, and the upcoming Sony Playstation 4.
This document discusses several positive trends around the world including falling poverty, access to basic needs like water and energy, and technological advancements that can help solve problems. Specific points made include that cell phones are transforming Africa, renewable energy sources in Africa are abundant, and addressing issues like access to clean water could save millions of lives and improve health and nutrition globally. The overall message is that the current situation is better than it appears and continued progress is possible in meeting basic human needs for all people.
The Mars Science Laboratory Curiosity rover collected data about Martian conditions including average temperatures between -17.2 C to -107 C, an atmospheric pressure of 600 Pa which is lower than water's triple point, strong thermal tides, wind, possible volcanic influences, traces of water, high radiation levels, questions about global warming, and an atmosphere composed of 95% carbon dioxide with some methane.
The document discusses various advancements in robotics including a robotic dragonfly, pressure sensing electronic skin, a robot with a face and tail, micro-rockets for robotic insects, and the use of robots in South Korean prisons and as potential friends or warriors.
This document discusses the potential resources available from near-Earth asteroids, including their composition and location. It notes that asteroids contain valuable metals like nickel, platinum and gold, as well as rocks, ice and volatiles. The document outlines different categories of asteroids based on their composition and orbit. It proposes using small robotic probes and solar furnaces to mine and process asteroid materials with minimal human presence required for setup and repairs.
Personal Life Extension involves taking an active role in one's health through various lifestyle and monitoring practices. Key aspects include reducing stress and inflammation, getting quality sleep, monitoring health data through devices and tests, following a healthy diet and exercise regimen, and supplementing appropriately. Tracking numerous biomarkers through blood tests quarterly allows one to quantify changes over time and identify potential issues. Maintaining a balanced microbiome is also important for overall health and reducing inflammation.
Know the difference between Endodontics and Orthodontics.Gokuldas Hospital
Your smile is beautiful.
Let’s be honest. Maintaining that beautiful smile is not an easy task. It is more than brushing and flossing. Sometimes, you might encounter dental issues that need special dental care. These issues can range anywhere from misalignment of the jaw to pain in the root of teeth.
NAVIGATING THE HORIZONS OF TIME LAPSE EMBRYO MONITORING.pdfRahul Sen
Time-lapse embryo monitoring is an advanced imaging technique used in IVF to continuously observe embryo development. It captures high-resolution images at regular intervals, allowing embryologists to select the most viable embryos for transfer based on detailed growth patterns. This technology enhances embryo selection, potentially increasing pregnancy success rates.
- Video recording of this lecture in English language: https://youtu.be/Pt1nA32sdHQ
- Video recording of this lecture in Arabic language: https://youtu.be/uFdc9F0rlP0
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Osteoporosis - Definition , Evaluation and Management .pdfJim Jacob Roy
Osteoporosis is an increasing cause of morbidity among the elderly.
In this document , a brief outline of osteoporosis is given , including the risk factors of osteoporosis fractures , the indications for testing bone mineral density and the management of osteoporosis
Summer is a time for fun in the sun, but the heat and humidity can also wreak havoc on your skin. From itchy rashes to unwanted pigmentation, several skin conditions become more prevalent during these warmer months.
Travel Clinic Cardiff: Health Advice for International TravelersNX Healthcare
Travel Clinic Cardiff offers comprehensive travel health services, including vaccinations, travel advice, and preventive care for international travelers. Our expert team ensures you are well-prepared and protected for your journey, providing personalized consultations tailored to your destination. Conveniently located in Cardiff, we help you travel with confidence and peace of mind. Visit us: www.nxhealthcare.co.uk
Histololgy of Female Reproductive System.pptxAyeshaZaid1
Dive into an in-depth exploration of the histological structure of female reproductive system with this comprehensive lecture. Presented by Dr. Ayesha Irfan, Assistant Professor of Anatomy, this presentation covers the Gross anatomy and functional histology of the female reproductive organs. Ideal for students, educators, and anyone interested in medical science, this lecture provides clear explanations, detailed diagrams, and valuable insights into female reproductive system. Enhance your knowledge and understanding of this essential aspect of human biology.
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdfrightmanforbloodline
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdf
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdf
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdf
The skin is the largest organ and its health plays a vital role among the other sense organs. The skin concerns like acne breakout, psoriasis, or anything similar along the lines, finding a qualified and experienced dermatologist becomes paramount.
Kosmoderma Academy, a leading institution in the field of dermatology and aesthetics, offers comprehensive courses in cosmetology and trichology. Our specialized courses on PRP (Hair), DR+Growth Factor, GFC, and Qr678 are designed to equip practitioners with advanced skills and knowledge to excel in hair restoration and growth treatments.
2. Items
• Graphene Implants to treat nervous system
and brain disease
• Improved diagnostic tools
• Regenerating blood vessels
• Drug rejuvenates mitochondria
• Observing neural activity in hi-res 3D
• SRT-1720 protects mice against obesity and
extends life by 44%
3.
4. More Items
• Clinical trials for mulculardistrophy yield
significant positive results
• Alzheimerspreventation
• Gene theraphy progress towards cures for
muscular dystrophy and leukemia
• Wearable electronics and BCI
• Drug that cures nearly any viral infection?
5. Alzheimer prevention
• Plague starts in the liver rather than the brain
• Lifestyle changes could prevent 50% of
Alzheimer cases
• An environmental toxin may be implicated in
Alzheimer’s and Parkinsons
6.
7. Your Stem Cells -> Heart Spare Parts
Heart muscle from pluripotent stem cells
Growing your own heart replacement parts
Commercial products by 2016
Graphenehttp://nextbigfuture.com/2011/08/graphene-neural-implants-being.htmlNeural implants have the potential to treat disorders and diseases that typically require long-term treatment, such as blindness, deafness, epilepsy, spinal cord injury, and Alzheimer's and Parkinson's.graphene might be better suited to long-term treatment than platinum and iridium oxide, two of the most popular materials now used to make implantable electrodes. Making platinum and iridium oxide electrodes small enough to be implanted reduces the amount of charge they can carry and therefore limits their ability to stimulate neural connections. Additionally, Cheng said, signals from these electrodes to machines that record neural activity often contain a lot "noise" because of the impedance levels of the materials.Diagnosticshttp://nextbigfuture.com/2011/08/quick-cheap-diagnostic-test-for-hiv-and.htmlQuick test for HIV: This microfluidics chip can detect syphilis and HIV in just 15 minutes from one microliter of blood. A simple microfluidics chip could improve health care in poor countries by making rapid diagnostic testing a reality. Developed by SamualSia and collaborators at Columbia University, the system was designed to be used in resource-poor settings. Field tests in Rwanda showed that the chip works as well as traditional laboratory-based HIV diagnostics. Sia wants to deploy the test in prenatal clinics in Africa.To make microfluidics technology more practical to use in poor countries, Sia's team designed it to be inexpensive to make and easy to read, and then tailored manufacturing methods for those purposes. The chips are produced via a plastic injection molding process that has been optimized to create nanoscale features. The reagents for the detection reaction are stored in a tube, separated by bubbles of air, and brought into the chip with the simple pull of a syringe.The process requires no moving parts, electricity, or external instrumentation, and it requires a very small amount of blood—about one microliter. Unlike many microfluidics devices, the results can be read without microscopes or other expensive optical systems. A simple optical sensor on an instrument that's about the size and cost of a cell phone gives the test results. Reparing Blood VesselsMIT Technology Review - A synthetic material may help to repair tissue after a heart attack, and aid transplants. MIT Technology Review - A synthetic material may help to repair tissue after a heart attack, and aid transplants. Researchers at Northwestern University have created a nanomaterial that could help the body to grow new blood vessels.Samuel Stupp and his colleagues developed a liquid that, when injected into patients, forms a matrix of loosely tangled nanofibers. Each of these fibers is covered in microscopic protuberances that mimic vascular endothelial growth factor, or VEGF—a protein that occurs naturally in the body and causes chemical reactions that result in the growth of new blood vessels. By mimicking VEGF, the nanofiber has the same biological effect.Stupp says there could be more uses for nanofibers that mimic proteins from the body. For example, they could be used to stimulate the formation of connective tissues such as bone and cartilage, or to regenerate neurons in the brain.Rejuvenating mitochondriahttp://nextbigfuture.com/2011/08/mitochondria-rejuvenated-by-drug.htmlResearchers at the Johns Hopkins University School of Medicine have found a protein normally involved in blood pressure regulation in a surprising place: tucked within the little "power plants" of cells, the mitochondria. The quantity of this protein appears to decrease with age, but treating older mice with the blood pressure medication losartan can increase protein numbers to youthful levels, decreasing both blood pressure and cellular energy usage. The researchers say these findings, published online during the week of August 15, 2011, in the Proceedings of the National Academy of Sciences, may lead to new treatments for mitochondrial–specific, age-related diseases, such as diabetes, hearing loss, frailty and Parkinson's disease.
http://www.nature.com/srep/2011/110818/srep00070/full/srep00070.html#/affil-authhttp://www.nytimes.com/2011/08/19/science/19fat.html?_r=1The drug, SRT-1720, protects the mice from the usual diseases of obesity by reducing the amount of fat in the liver and increasing sensitivity to insulin. These and other positive health effects enable the obese mice to live 44 percent longer, on average, than obese mice that did not receive the drug, according to a team of researchers led by Rafael de Cabo, a gerontologist at the National Institute on Aging. Despite the positive new results with SRT-1720, Sirtris is not putting it into clinical trials because the company believes another of its resveratrol mimics, SRT-2104, is more promising. That drug “is more suitable for human consumption,” said Dr. Sinclair, a co-author of Dr. de Cabo’s report. Sirt1 is an NAD+-dependent deacetylase that extends lifespan in lower organisms and improves metabolism and delays the onset of age-related diseases in mammals. Here we show that SRT1720, a synthetic compound that was identified for its ability to activate Sirt1 in vitro, extends both mean and maximum lifespan of adult mice fed a high-fat diet.
Muscular DystrophyA molecular technique originally developed at the University of North Carolina at Chapel Hill has taken one step closer to becoming a treatment for the devastating genetic disease Duchenne muscular dystrophy.Gene therapyhttp://nextbigfuture.com/2011/08/gene-therapy-progress-to-cures-for.htmlThe treatment uses a form of white blood cells called T cells harvested from each patient. A manmade virus-like vector is used to transfer special molecules to the T cells. One of the molecules, CD19, makes the T cells attack B lymphocytes -- the cells that become cancerous in CLL.The novel treatment uses strips of genetic code – called antisense oligonucleotides – to restore the function of a defective dystrophin gene. In a study published July 25, 2011 in the journal The Lancet, researchers from the U.K., U.S. and Australia demonstrated that a phase Ib/IIa trial of the approach restored production of the critical muscle protein missing in patients with the progressive neuromuscular condition. Wearable Electronicshttp://nextbigfuture.com/2011/08/wearable-electronics-demonstrate.htmlThe University of California, San Diego has demonstrated that a thin flexible, skin-like device, mounted with tiny electronic components, is capable of acquiring electrical signals from the brain and skeletal muscles and potentially transmitting the information wirelessly to an external computer. The development, published Aug. 12 in the journal Science, means that in the future, patients struggling with reduced motor or brain function, or research subjects, could be monitored in their natural environment outside the lab. For example, a person who struggles with epilepsy could wear the device to monitor for signs of oncoming seizures. It also opens up a slew of previously unimaginable possibilities in the field of brain-machine interfaces well beyond biomedical applications, said Professor Todd Coleman, who joined the Department of Bioengineering at the UC San Diego Jacobs School of Engineering this summer. Until now, Coleman said, this brain-machine interface has been limited by the clunky, artificial coupling required by a vast array of electronic components and devices. “The brain-machine interface paradigm is very exciting and I think it need not be limited to thinking about prosthetics or people with some type of motor deficit,” said Coleman. “I think taking the lens of the human and computer interacting, and if you could evolve a very nice coupling that is remarkably natural and almost ubiquitous, I think there are applications that we haven’t even imagined. That is what really fascinates me – really the coupling between the biological system and the computer system.”
1. The plaques associated with Alzheimer’s disease may arise in the liver, not the brain as commonly thought, according to a study published in The Journal of Neuroscience.Peripheral reduction of β-amyloid is sufficient to reduce brain β-amyloid: Implications for Alzheimer's disease2. Over half of all Alzheimer’s disease cases could potentially be prevented through lifestyle changes and treatment or prevention of chronic medical conditions, according to a study led by Deborah Barnes, PhD, a mental health researcher at the San Francisco VA Medical Center (SFVAMC).In the United States, Barnes found that the biggest modifiable risk factors are physical inactivity, depression, smoking, mid-life hypertension, mid-life obesity, low education and diabetes.Together, these risk factors are associated with up to 51 percent of Alzheimer’s cases worldwide (17.2 million cases) and up to 54 percent of Alzheimer’s cases in the United States (2.9 million cases), according to Barnes.3. Discovery Magazine - the environmental toxin beta-methylamino-L-alanine, or BMAA may be an important factor for Alzheimer's and Parkisons. This compound is produced by cyanobacteria, the blue-green algae that live in soil, lakes, and oceans. Cyanobacteria are consumed by fish and other aquatic creatures. Recent studies have found BMAA in seafood, suggesting that certain diets and locations may put people at particular risk. More worrisome, blooms of cyanobacteria are becoming increasingly common, fueling fears that their toxic by-product may be quietly fomenting an upsurge in ALS—and possibly other neurological disorders like Alzheimer’s disease and Parkinson’s as well. 21 research teams from 11 countries are now investigating the potential dangers of BMAA.The data suggest that ALS is 2.5 times more common than average within one-half mile of a lake or pond where cyanobacteria have bloomed. Stommel hypothesizes that people living around the lakes may have breathed in BMAA from the air, eaten fish contaminated with it, or accidentally swallowed it while swimming. He and Cox are conducting tests of brain bank tissue to see if the ALS patients in these regions do in fact have elevated levels of BMAA.The overall risk from BMAA is probably low. In fact, he eats shrimp and crab with relish. “ALS is very rare, and only a few people are genetically at risk,” he says. “Even if BMAA causes common disorders like Alzheimer’s and Parkinson’s, that still doesn’t mean we should shun seafood.” Commercial fishermen generally are not working in areas heavily contaminated with cyanobacteria, he notes, so the danger of exposure in the United States and Canada should be modest for those who eat typical store-bought or homegrown food and avoid drinking—as Cox puts it—“green, smelly” water.
a team of researchers at MIT’s Lincoln Laboratory has designed a drug that can identify cells that have been infected by any type of virus, then kill those cells to terminate the infection.Researchers at MIT’s Lincoln Lab have developed technology that may someday cure the common cold, influenza and other ailments.http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0022572The researchers tested their drug against 15 viruses, and found it was effective against all of them — including rhinoviruses that cause the common cold, H1N1 influenza, a stomach virus, a polio virus, dengue fever and several other types of hemorrhagic fever.
Stem cells could be used for tissue engineering spare part for your heart by 2016Scientists have already made basic heart muscle from stem cells, but the Hong Kong-led team wants to refine it so it can replace any part damaged in heart attacks, and to recreate the natural pacemaker, where the heartbeat originates.“When you get a heart attack, there is a small time window for a cure when the damage is still small. You can cure with a patch, a small tissue, so you won’t progress to late stage heart failure,” said team leader Ronald Li, director of the University of Hong Kong’s Stem Cell & Regenerative Medicine Consortium.“We have the muscle strip now, but we want it to mimic what we see in the native heart better, (and) that requires engineering,” said Li in an interview.An organ or section of tissue grown from a person’s stem cells can, in general, be surgically implanted only in that same person.
Caption: This is a 3-D image of living neuron taken by DHM technology. Credit: Courtesy of Lyncée TecDigital Holographic Microscopy (DHM) can now be used to observe neuronal activity in real-time and in three dimensions—with up to 50 times greater resolution than ever before.The application, borrowed from materials science, has immense potential for testing out new drugs to fight neurodegenerative diseases such as Alzheimer’s and Parkinson’s. It has already been commercialized by the EPFL start-up LynceeTec.“DHM is a fundamentally novel application for studying neurons with a slew of advantages over traditional microscopes,” explains Pierre Magistretti of EPFL’s Brain Mind Institute and a lead author of the paper. “It is non-invasive, allowing for extended observation of neural processes without the need for electrodes or dyes that damage cells.”Senior team member Pierre Marquet adds, “DHM gives precious information not only about the shape of neurons, but also about their dynamics and activity, and the technique creates 3D navigable images and increases the precision from 500 nanometers in traditional microscopes to a scale of 10 nanometers.”This should aid in understanding how the brain works.http://www.youtube.com/watch?v=yuvWfva0bGw&feature=player_embedded#t=24shttp://www.youtube.com/watch?v=yuvWfva0bGw&feature=player_embedded#t=43sA good way to understand how DHM works is to imagine a large rock in an ocean of perfectly regular waves. As the waves deform around the rock and come around the other side, they carry information about the rock’s form. This information can be extracted by comparing it to waves that did not smash up against the rock, and an image of the rock can be reconstructed. DHM does this with a laser beam by pointing a single wavelength at an object, collecting the distorted wave on the other side, and comparing it to a reference beam. A computer then numerically reconstructs a 3D image of the object—in this case neurons—using an algorithm developed by the authors. In addition, the laser beam travels through the transparent cells and important information about their internal composition is obtained.Normally applied to detect minute defects in materials, Magistretti, along with DHM pioneer and EPFL professor in the Advanced Photonics Laboratory, Christian Depeursinge, decided to use DHM for neurobiological applications. In the study, their group provoked an electric charge in a culture of neurons using glutamate, the main neurotransmitter in the brain. This charge transfer carries water inside the neurons and changes their optical properties in a way that can be detected only by DHM. Thus, the technique accurately visualizes the electrical activities of hundreds of neurons simultaneously, in real-time, without damaging them with electrodes, which can only record activity from a few neurons at a time.A major advance for pharmaceutical researchWithout the need to introduce dyes or electrodes, DHM can be applied to High Content Screening—the screening of thousands of new pharmacological molecules. This advance has important ramifications for the discovery of new drugs that combat or prevent neurodegenerative diseases such as Parkinson’s and Alzheimer’s, since new molecules can be tested more quickly and in greater numbers.“Due to the technique’s precision, speed, and lack of invasiveness, it is possible to track minute changes in neuron properties in relation to an applied test drug and allow for a better understanding of what is happening,” Magistretti says. “What normally would take 12 hours in the lab can now be done in 15 to 30 minutes, greatly decreasing the time it takes for researchers to know if a drug is effective or not.”