This document discusses various topics related to genetics and DNA analysis including:
1. Scientists are using DNA sequencing to study rare genetic diseases, human origins, and microbes in our bodies. Understanding genome algorithms is key to understanding their applications and limitations.
2. Prenatal screening tests like nuchal translucency measurement and blood tests can detect risks for conditions like Down syndrome. Invasive tests provide confirmation but carry higher risks of complications.
3. Genetic counseling analyzes family trees and inheritance patterns to determine risks of transmitting genetic diseases to offspring.
Imagine that you have been told you have an illness that cannot be cured or what if your body has been irreversibly paralysed. There is no hope. But there is a science that could change that. It’s Called Stem Cell Research and it’s an important step in the medical revolution. But it comes with controversies as it uses Human Embryos’ as Raw Material.
But something astounding happened in the year 2006 that removed the usage of surplus embryos from the equation altogether. It’s about a brand new technology that can turn back the clock on your body cells. This is cutting edge of science where new developments are happing all the time. The iPSCs could be the potential medicine of 21st century. So what are stem cells? Why do they Matter? What are iPSCs and how it changed the biological rules?
From Bench to Bedside: Research and Clinical Applications of Induced Pluripot...TheresaGold
Since the isolation of embryonic stem cells in 1998, stem cell research has been considered the most promising research platform for developmental studies, disease treatment, tissue repair engineering, and regenerative medicine. However, embryonic stem cell research has been widely regulated and restricted due to the ethical issues surrounding research using embryonic tissue. Induced pluripotent stem cells (iPS cells) are stems cells that are derived through the genetic reprogramming of a somatic cell. iPS cells are nearly identical to embryonic stem cells, possessing the potential to give rise to every cell type in an organism, with the exception of extraembryonic tissues. Consequently, induced pluripotent stem cells promise the same research and clinical benefits as embryonic stem cells, without the ethical concerns. This presentation explores the process of generating induced pluripotent stem cells and investigates potential applications of induced pluripotent stem cells in both a research and clinical setting.
Imagine that you have been told you have an illness that cannot be cured or what if your body has been irreversibly paralysed. There is no hope. But there is a science that could change that. It’s Called Stem Cell Research and it’s an important step in the medical revolution. But it comes with controversies as it uses Human Embryos’ as Raw Material.
But something astounding happened in the year 2006 that removed the usage of surplus embryos from the equation altogether. It’s about a brand new technology that can turn back the clock on your body cells. This is cutting edge of science where new developments are happing all the time. The iPSCs could be the potential medicine of 21st century. So what are stem cells? Why do they Matter? What are iPSCs and how it changed the biological rules?
From Bench to Bedside: Research and Clinical Applications of Induced Pluripot...TheresaGold
Since the isolation of embryonic stem cells in 1998, stem cell research has been considered the most promising research platform for developmental studies, disease treatment, tissue repair engineering, and regenerative medicine. However, embryonic stem cell research has been widely regulated and restricted due to the ethical issues surrounding research using embryonic tissue. Induced pluripotent stem cells (iPS cells) are stems cells that are derived through the genetic reprogramming of a somatic cell. iPS cells are nearly identical to embryonic stem cells, possessing the potential to give rise to every cell type in an organism, with the exception of extraembryonic tissues. Consequently, induced pluripotent stem cells promise the same research and clinical benefits as embryonic stem cells, without the ethical concerns. This presentation explores the process of generating induced pluripotent stem cells and investigates potential applications of induced pluripotent stem cells in both a research and clinical setting.
Guided notes covering material from Topic 3.2 of the updated IB Biology syllabus for 2016 exams. Notes sequence and prompts are based on the Oxford IB Biology textbook by Allott and Mindorff.
iPSCs are pluripotent; unlike ESC, iPSCs are not derived from the embryo, but instead created from differentiated cells in the lab through a process – cellular reprogramming.
Contents - Definition of cytoplasmic inheritance
Mendelian inheritance , Non Mendelian inheritance, difference between Mendelian and non Mendelian inheritance, maternal effect - shell coiling , inheritance due to infective particle- kappa particle in paramecium
Autism refers to a neurological condition that negatively affects the brain development and is characterized by abnormalities in communication and social interactions.
Currently, treatment involves counseling, rehabilitation, and medication. However, these can result in improvement of symptoms instead of treating the disease from the core.
In this situation, stem cell therapy plays a major role and serves as a repair system.
Carbon Dioxide Sensitivity in DrosophillaRiya R Gautam
Cytoplasmic/ Meternal inheritence (of sigma factor) in drosophila which trigger paralytic reactions in some drosophilas when exposed to the presence of Carbon Dioxide.
Guided notes covering material from Topic 3.2 of the updated IB Biology syllabus for 2016 exams. Notes sequence and prompts are based on the Oxford IB Biology textbook by Allott and Mindorff.
iPSCs are pluripotent; unlike ESC, iPSCs are not derived from the embryo, but instead created from differentiated cells in the lab through a process – cellular reprogramming.
Contents - Definition of cytoplasmic inheritance
Mendelian inheritance , Non Mendelian inheritance, difference between Mendelian and non Mendelian inheritance, maternal effect - shell coiling , inheritance due to infective particle- kappa particle in paramecium
Autism refers to a neurological condition that negatively affects the brain development and is characterized by abnormalities in communication and social interactions.
Currently, treatment involves counseling, rehabilitation, and medication. However, these can result in improvement of symptoms instead of treating the disease from the core.
In this situation, stem cell therapy plays a major role and serves as a repair system.
Carbon Dioxide Sensitivity in DrosophillaRiya R Gautam
Cytoplasmic/ Meternal inheritence (of sigma factor) in drosophila which trigger paralytic reactions in some drosophilas when exposed to the presence of Carbon Dioxide.
Human reproduction is remarkably inefficient; Only 420 are born alive out of 1000 fertilizations, nearly 70% of human conceptions do not survive to live birth. The stillbirth in india is highest in the world 7% to 14% in different states Odisha 8% Karnataka 14% (of course reported only) Recurrent pregnancy loss is a psychologically stressful diagnosis for couples, in approximately 50% of cases, no cause will be found. The number of evidence-based practices available for guidance is limited. This confluence of factors presents a challenge for clinicians. However, in studies of interventions aimed at reducing rates of miscarriage in women with otherwise unexplained RPL, control groups experience a live birth rate of up to 87% with no intervention. Thus, one of the most significant things we can do when caring for these complex patients is to offer them emotional support and accurate information. As more work is done in this emerging area of reproductive science, we will be able to shed more light on this complex problem.
CHAPTER 1 SEMESTER V PREVENTIVE-PEDIATRICS.pdfSachin Sharma
This content provides an overview of preventive pediatrics. It defines preventive pediatrics as preventing disease and promoting children's physical, mental, and social well-being to achieve positive health. It discusses antenatal, postnatal, and social preventive pediatrics. It also covers various child health programs like immunization, breastfeeding, ICDS, and the roles of organizations like WHO, UNICEF, and nurses in preventive pediatrics.
QA Paediatric dentistry department, Hospital Melaka 2020Azreen Aj
QA study - To improve the 6th monthly recall rate post-comprehensive dental treatment under general anaesthesia in paediatric dentistry department, Hospital Melaka
R3 Stem Cells and Kidney Repair A New Horizon in Nephrology.pptxR3 Stem Cell
R3 Stem Cells and Kidney Repair: A New Horizon in Nephrology" explores groundbreaking advancements in the use of R3 stem cells for kidney disease treatment. This insightful piece delves into the potential of these cells to regenerate damaged kidney tissue, offering new hope for patients and reshaping the future of nephrology.
We understand the unique challenges pickleball players face and are committed to helping you stay healthy and active. In this presentation, we’ll explore the three most common pickleball injuries and provide strategies for prevention and treatment.
Global launch of the Healthy Ageing and Prevention Index 2nd wave – alongside...ILC- UK
The Healthy Ageing and Prevention Index is an online tool created by ILC that ranks countries on six metrics including, life span, health span, work span, income, environmental performance, and happiness. The Index helps us understand how well countries have adapted to longevity and inform decision makers on what must be done to maximise the economic benefits that comes with living well for longer.
Alongside the 77th World Health Assembly in Geneva on 28 May 2024, we launched the second version of our Index, allowing us to track progress and give new insights into what needs to be done to keep populations healthier for longer.
The speakers included:
Professor Orazio Schillaci, Minister of Health, Italy
Dr Hans Groth, Chairman of the Board, World Demographic & Ageing Forum
Professor Ilona Kickbusch, Founder and Chair, Global Health Centre, Geneva Graduate Institute and co-chair, World Health Summit Council
Dr Natasha Azzopardi Muscat, Director, Country Health Policies and Systems Division, World Health Organisation EURO
Dr Marta Lomazzi, Executive Manager, World Federation of Public Health Associations
Dr Shyam Bishen, Head, Centre for Health and Healthcare and Member of the Executive Committee, World Economic Forum
Dr Karin Tegmark Wisell, Director General, Public Health Agency of Sweden
India Clinical Trials Market: Industry Size and Growth Trends [2030] Analyzed...Kumar Satyam
According to TechSci Research report, "India Clinical Trials Market- By Region, Competition, Forecast & Opportunities, 2030F," the India Clinical Trials Market was valued at USD 2.05 billion in 2024 and is projected to grow at a compound annual growth rate (CAGR) of 8.64% through 2030. The market is driven by a variety of factors, making India an attractive destination for pharmaceutical companies and researchers. India's vast and diverse patient population, cost-effective operational environment, and a large pool of skilled medical professionals contribute significantly to the market's growth. Additionally, increasing government support in streamlining regulations and the growing prevalence of lifestyle diseases further propel the clinical trials market.
Growing Prevalence of Lifestyle Diseases
The rising incidence of lifestyle diseases such as diabetes, cardiovascular diseases, and cancer is a major trend driving the clinical trials market in India. These conditions necessitate the development and testing of new treatment methods, creating a robust demand for clinical trials. The increasing burden of these diseases highlights the need for innovative therapies and underscores the importance of India as a key player in global clinical research.
How many patients does case series should have In comparison to case reports.pdfpubrica101
Pubrica’s team of researchers and writers create scientific and medical research articles, which may be important resources for authors and practitioners. Pubrica medical writers assist you in creating and revising the introduction by alerting the reader to gaps in the chosen study subject. Our professionals understand the order in which the hypothesis topic is followed by the broad subject, the issue, and the backdrop.
https://pubrica.com/academy/case-study-or-series/how-many-patients-does-case-series-should-have-in-comparison-to-case-reports/
Struggling with intense fears that disrupt your life? At Renew Life Hypnosis, we offer specialized hypnosis to overcome fear. Phobias are exaggerated fears, often stemming from past traumas or learned behaviors. Hypnotherapy addresses these deep-seated fears by accessing the subconscious mind, helping you change your reactions to phobic triggers. Our expert therapists guide you into a state of deep relaxation, allowing you to transform your responses and reduce anxiety. Experience increased confidence and freedom from phobias with our personalized approach. Ready to live a fear-free life? Visit us at Renew Life Hypnosis..
Telehealth Psychology Building Trust with Clients.pptxThe Harvest Clinic
Telehealth psychology is a digital approach that offers psychological services and mental health care to clients remotely, using technologies like video conferencing, phone calls, text messaging, and mobile apps for communication.
CRISPR-Cas9, a revolutionary gene-editing tool, holds immense potential to reshape medicine, agriculture, and our understanding of life. But like any powerful tool, it comes with ethical considerations.
Unveiling CRISPR: This naturally occurring bacterial defense system (crRNA & Cas9 protein) fights viruses. Scientists repurposed it for precise gene editing (correction, deletion, insertion) by targeting specific DNA sequences.
The Promise: CRISPR offers exciting possibilities:
Gene Therapy: Correcting genetic diseases like cystic fibrosis.
Agriculture: Engineering crops resistant to pests and harsh environments.
Research: Studying gene function to unlock new knowledge.
The Peril: Ethical concerns demand attention:
Off-target Effects: Unintended DNA edits can have unforeseen consequences.
Eugenics: Misusing CRISPR for designer babies raises social and ethical questions.
Equity: High costs could limit access to this potentially life-saving technology.
The Path Forward: Responsible development is crucial:
International Collaboration: Clear guidelines are needed for research and human trials.
Public Education: Open discussions ensure informed decisions about CRISPR.
Prioritize Safety and Ethics: Safety and ethical principles must be paramount.
CRISPR offers a powerful tool for a better future, but responsible development and addressing ethical concerns are essential. By prioritizing safety, fostering open dialogue, and ensuring equitable access, we can harness CRISPR's power for the benefit of all. (2998 characters)
2. Why study this ?
● scientists are using sequencing to study rare genetic diseases in children.So
sequence the genomes of ancient humans to learn more about human origins
and evolution and patterns of migration
● They're using it to study the vast number of microbes, bacteria and such that
live inside our bodies, especially in our guts, and help us do things like digest
food.Or to simply study the basic ways in which genomes work.To answer
basic questions, like what does all the DNA and the genome do?How does
the genome work?
● First of all, understanding these algorithms is key to understanding
where they will succeed and where they'll fail novo shotgun assembly
problem
3. continued...
● Nuchal translucency measurement, PAPP-A, free or total beta- hCG: this is processed through
sonography to visualize the increased thickness of subcutaneous fluid at NT. The amount of fluid at the
posterior aspect of the fetal neck is called nuchal translucency (NT) and can be measured on
ultrasonography as early as the 6th week of gestation. Increased NT has been found to be associated
with trisomies and congenital cardiac defects. NT combined with levels of free hCG and pregnancy-
associated plasma protein A (PAPP-A) is used to screen for Down’s syndrome in the first trimester with
their combined detection rate being around 80 %.
● Ultrasonography and fetal echocardiography can be offered to pregnant women if fetal NT is found
to be at least 3.5 mm (and aneuploidy screen is negative and no chromosomal abnormalities have been
detected) as there is still a high risk of congenital cardiac/abdominal wall defects and other genetic
syndromes. It can detect the risk of Down syndrome and is recommended in 11 to 14 weeks of
pregnancy.
● This is a new genetic test which analyzes the DNA of the fetus from a sample of the maternal
blood. It can be performed anytime after the 9th week of gestation up to the 22nd week. A positive test
is indicative of birth defects and further invasive tests may be warranted to confirm the diagnosis.
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● NIPS helps to detect trisomies like Down syndrome, trisomy 14 and 18, cystic fibrosis, hemophilia,
etc. It can also reveal the gender of the fetus. The test has higher sensitivity compared to nuchal
translucency as well as first-trimester screening tests and quad test. Currently, the American College of
Obstetricians and Gynecologists Committee on Genetics recommends NIPS for high –risk women with
● Invasive tests include chorionic villus sampling (CVS), amniocentesis and fetal blood sampling (FBS).
These tests are associated with an elevated risk of complications, e.g., limb injuries have been
reported after CVS; miscarriages have been reported after amniocentesis and FBS.
● While CVS is ideally performed between the 8th to 10th week of gestation, amniocentesis is performed
in the second trimester between the 16th to the 20th gestational weeks. It cannot be performed earlier
due to the risk of talipes and fetal loss. Similarly, FBS is not performed as often due to the associated
high risk of miscarriages.
12. Second-trimester screening tests
● Triple markers [human chorionic gonadotropin (hCG), unconjugated estriol, and maternal alpha-
fetoprotein levels] can detect Down’s syndrome in 70 % of the cases.
● Quadruple markers [human chorionic gonadotropin (hCG), unconjugated estriol, maternal alpha-
fetoprotein levels, and inhibin A levels] can detect Down’s syndrome in approximately 80 % of the
cases.
● The high value of alpha-fetoprotein level in the blood determines the high risk of neural tube defect of
the brain and spinal cord, birth defects of the abdominal wall and complications in late pregnancy such
as, slow growth, miscarriage or death of the fetus.
● A blood test is followed by ultrasonography and amniocentesis for confirmation of diagnosis and double
checking of the result of blood tests.
13. Genetic Counseling
Genetic counseling is the process by which a trained health care provider determines the risk of parents
transmitting a genetic disease to their unborn fetus. During this arduous process, the family trees of
prospective parents are investigated in detail, analyzed inheritance patterns, and the potential for
transmission of the affected genetic trait.
● Prenatal screening tests suggestive of a birth defect
● Invasive tests suggestive of birth defects
● Family history of a genetic trait or disorder
● Previous child with a birth or genetic condition
● Maternal age over 35 years.
14. Allele
An allele is the variant form of a gene as detected by various phenotypes say a color variation of white and
purple petals as demonstrated by Gregor Mendel.
Apart from some notable exceptions, diploid organisms express both alleles at a given locus in the normal
state. However, a monoallelic expression is much more widespread thus need to study it to describe various
disease processes.
15. Monolithic Expression
Monoallelic gene expression is the type of gene expression in which one copy of the gene is active, and
the other copy is silent. Once it is initiated early in the development of an organism, the monoallelic
expression is stably maintained after that. The more prevalent form of gene expression is a biallelic
expression. It is the transcription of both alleles of a gene.
Each allele is not expressed equally. An allelic imbalance is exhibited in 5 – 20% of the autosomal genes.
Balanced expression
The monoallelic expression can occur in a number of ways:AND ALL ALLELES ARE EXPRESSED EQUAL.
● Genomic imprinting
● Random choice of one allele
● X-inactivation
16. Genomic Imprinting
● Genomic imprinting is a type of monoallelic expression that is determined by these epigenetic marks;
thus, the copies of imprinted genes of the fertilized egg that came from the paternal and maternal
contributions have different marks.
● Human organisms are diploid in nature and all somatic cells have two copies of a genome derived from
the mother and another from the father. In genomic imprinting, however, it is only from the paternal
allele that some imprinted genes are expressed, while others are expressed only from the maternal
allele
● Same active allele is present in all cells in which a given gene is imprinted. This active allele is
determined by the parent of origin of the allele. Genomic imprinting is also known as parent of origin
imprinting.
● All imprinted genes encode a protein. Different proteins have different and a wide variety of functions
within the cells.
● Same active allele is present in all cells in which a given gene is imprinted. This active allele is
determined by the parent of origin of the allele. Genomic imprinting is also known as parent of origin
imprinting.
17. Somatic rearrangement: in this type, there is a change in DNA organization to produce functional gene at
one allele, but not at the other. Genes affected by this type of random monoallelic expression are:
● Pheromone receptor genes
● Interleukin genes
● Genes encoding receptors on natural killer cells
Allelic silencing: in this process, only one allele of a gene is expressed, while the other allele is
silenced.Somatic rearrangement: in this type, there is a change in DNA organization to produce functional
gene at one allele, but not at the other. Genes affected by this type of random monoallelic expression are:
● T-cell receptor genes
● Immunoglobulin genes
18. Barr body: a heterochromatic mass seen during interphase is known as a Barr body.
Dosage compensation:Dosage compensation is a term that describes the processes by which organisms
equalize the expression of genes between members of different biological sexes. It results in random
epigenetic silencing of one X chromosome.
Often, changes in the level of gene expression go unnoticed; however, sometimes even a small change can
have severe clinical consequences.
19. Goldilocks Principle
Goldilocks principle states that something must fall within certain margins, as opposed to reaching extremes.
It is derived from an initial analogy of a child named Goldilocks who chose a bowl of porridge that was neither
too hot nor too cold as the preferred choice. This principle of just the right amount is applied in genetics
indicate that something must be just right, neither too much, nor too less. Many genetic principles involve
changes in the amount of gene product. When the amount of gene product changes, it no longer follows the
‘just right’ principle of Goldilocks.
20. Restriction Fragment Length Polymorphism (RFLP)
One of the most common DNA fingerprinting technique is the restriction fragment length polymorphism
(RFLP). This technique uses special enzymes to cut segments of a sample where DNA can be extracted. It
involves looking for repetitive DNA base sequences in individual DNA using specific restriction
endonucleases. It specifically looks for differences in the homologous DNA sequences.
RFLP markers are highly locus-specific, which is why they can be used to detect genetic diseases. An
RFLP probe is a labeled DNA sequence that can hybridize with 1 or more fragments of the DNA sample.
When they are separated using electrophoresis technique, different viewing techniques may be used,
including UV light or autoradiography, in the case of use of radioactive markers. When a mutation occurs,
there are changes in the profile of the normal and mutated DNA fragments obtained after electrophoresis.
21. Short Tandem Repeats Polymorphisms (STR)
Another technique used in DNA fingerprinting is a short tandem repeat (STR) polymorphisms. STR are
short DNA sequences that are repeated a dozen or more times in a head-to tail-manner. This technique does
not involve using restriction enzymes like the ones used in RFLPs. It uses probes that attach to a specific
region in the DNA. The polymerase chain reaction is then done to determine the length of the short
tandem repeats.
STR regions are variable or polymorphic, which is why they can be used to discriminate 1 DNA profile from
another; 1 individual can have 5 repeats of a specific sequence while another may have 7. The number of
repeats can be used to profile individuals.
27. Genome as String ,Reads as substring
DNA polymerase is an enzyme that synthesizes DNA molecules from
nucleoside triphosphates, the molecular precursors of DNA. These
enzymes are essential for DNA replication and usually work in groups
to create two identical DNA duplexes from a single original DNA
duplex
42. Kaggle for the practice
https://www.kaggle.com/crawford/gene-expression (sometimes we get unexpected json input)
43. For the software part we will jump on to the
notebooks
Before that I love to give a brief intro on the hardware that might be required I too
don't know much so please do bear with me.