Alzheimer's Disease Pathway
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Alzheimer's Disease Pathway https://www.creativebiolabs.net/googlesearch?key=alzheimers%2520disease&ty=google
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What is oncolytic virus
Recently, the development of molecular biotechnology allows modifications of viral genomes genetically and optimizes the transformation of available viruses with weak pathogenicity. These methods are used to enhance the oncolytic effect and reduce adverse reactions to maximize both efficacy and safety. Indeed, the oncolytic virus can stimulate a pro-inflammatory tumor environment by enhancing antigen recognition and robust immune responses. It overcomes the immune evasiveness and escape of malignant cells to eliminate the tumor cells.
https://www.creative-biolabs.com/oncolytic-virus/definition-of-an-oncolytic-virus.htm
What is oncolytic virus therapy
An oncolytic virus is a form of promising therapeutic tool for the treatment of malignant tumors, which uses viruses to selectively infect and kill tumor cells and further to induce or boost specific antitumor immunity. https://www.creative-biolabs.com/oncolytic-virus/definition-of-an-oncolytic-virus.htm
Reporter-encoding Oncolytic Virus
Oncolytic viruses encoding reporter genes utilized for in vivo molecular imaging are useful to locate the distribution of oncolytic viruses in pre-clinical tests. Optical detection methods mainly include green fluorescent protein (GFP), enhanced GFP (eGFP), discosoma red fluorescent protein (DsRed), and bioluminescence imaging (BLI), which utilizes luciferases. Reporter-encoding oncolytic viruses, including vaccinia virus, adenovirus, herpes simplex virus and vesicular stomatitis virus, allow accurate tracking of gene expression, tumor metastases, viral infection as well as assessment of gene therapy.
https://www.creative-biolabs.com/oncolytic-virus/category-reporter-encoding-oncolytic-virus-293.htm
Pre-made Oncolytic VACV
Vaccinia virus can accommodate more than 30 kb of foreign DNA. Foreign genes can be stably integrated into the viral genome, resulting in efficient and long-term gene expression. The deletion of the viral genes of thymidine kinase (TK) and vaccinia growth factors (VGF) results in enhanced tumor-selectively and antitumor activity, and reduced virus virulence. https://www.creative-biolabs.com/oncolytic-virus/category-pre-made-oncolytic-vaccinia-virus-291.htm
Pre-made Oncolytic Vaccinia Virus
Oncolytic viruses are a class of antitumor agents that selectively kill tumor cells without affecting normal cells. Vaccinia virus (VACV) is a large, enveloped virus that is considered as the most potential live biotherapeutic agent because of its strong oncolytic efficacy and potent antigen presentation capability that can combine well with its natural oncolytic activities for cancer immunotherapy. Many types of modified vaccinia virus have been used for in vitro and in vivo studies, as well as clinical trials.https://www.creative-biolabs.com/oncolytic-virus/category-pre-made-oncolytic-vaccinia-virus-291.htm
Pre-made Oncolytic HSV
Partial deletion of the HSV gene results in superior packaging capacity of >30 kb foreign DNA with low toxicity as an expression vector. Multiple modified purified oncolytic herpes simplex virus (oHSV) products can avoid evading the host immune response and reduce toxicity by gene knock-out, such as ICP0, ICP4, ICP22, ICP27 or ICP47.https://www.creative-biolabs.com/oncolytic-virus/category-pre-made-oncolytic-herpes-simplex-virus-290.htm
Pre-made Oncolytic Herpes Simplex Virus
Oncolytic viruses are using for the treatment of cancer due to the specific antitumor activity in tumor cells. Herpes simplex virus (HSV) is a human neurogenic dsDNA virus that has the characteristic of life-long latent infection of neurons and allows for long-term transgene expression.https://www.creative-biolabs.com/oncolytic-virus/category-pre-made-oncolytic-herpes-simplex-virus-290.htm
Oncolytic Virus Delivery
Oncolytic viruses have the potential to powerfully and selectively kill cancer cells and have shown impressive efficacy in preclinical and clinical settings. However, their potential can be restricted by inefficient delivery into the complex tumor environment. Thus, the efficient delivery of oncolytic viruses remains a significant challenge in the field of oncology, limiting their therapeutic effect. https://www.creative-biolabs.com/oncolytic-virus/approaches-to-delivery-of-oncolytic-viruses.htm
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What is oncolytic virus
Recently, the development of molecular biotechnology allows modifications of viral genomes genetically and optimizes the transformation of available viruses with weak pathogenicity. These methods are used to enhance the oncolytic effect and reduce adverse reactions to maximize both efficacy and safety. Indeed, the oncolytic virus can stimulate a pro-inflammatory tumor environment by enhancing antigen recognition and robust immune responses. It overcomes the immune evasiveness and escape of malignant cells to eliminate the tumor cells.
https://www.creative-biolabs.com/oncolytic-virus/definition-of-an-oncolytic-virus.htm
What is oncolytic virus therapy
An oncolytic virus is a form of promising therapeutic tool for the treatment of malignant tumors, which uses viruses to selectively infect and kill tumor cells and further to induce or boost specific antitumor immunity. https://www.creative-biolabs.com/oncolytic-virus/definition-of-an-oncolytic-virus.htm
Reporter-encoding Oncolytic Virus
Oncolytic viruses encoding reporter genes utilized for in vivo molecular imaging are useful to locate the distribution of oncolytic viruses in pre-clinical tests. Optical detection methods mainly include green fluorescent protein (GFP), enhanced GFP (eGFP), discosoma red fluorescent protein (DsRed), and bioluminescence imaging (BLI), which utilizes luciferases. Reporter-encoding oncolytic viruses, including vaccinia virus, adenovirus, herpes simplex virus and vesicular stomatitis virus, allow accurate tracking of gene expression, tumor metastases, viral infection as well as assessment of gene therapy.
https://www.creative-biolabs.com/oncolytic-virus/category-reporter-encoding-oncolytic-virus-293.htm
Pre-made Oncolytic VACV
Vaccinia virus can accommodate more than 30 kb of foreign DNA. Foreign genes can be stably integrated into the viral genome, resulting in efficient and long-term gene expression. The deletion of the viral genes of thymidine kinase (TK) and vaccinia growth factors (VGF) results in enhanced tumor-selectively and antitumor activity, and reduced virus virulence. https://www.creative-biolabs.com/oncolytic-virus/category-pre-made-oncolytic-vaccinia-virus-291.htm
Pre-made Oncolytic Vaccinia Virus
Oncolytic viruses are a class of antitumor agents that selectively kill tumor cells without affecting normal cells. Vaccinia virus (VACV) is a large, enveloped virus that is considered as the most potential live biotherapeutic agent because of its strong oncolytic efficacy and potent antigen presentation capability that can combine well with its natural oncolytic activities for cancer immunotherapy. Many types of modified vaccinia virus have been used for in vitro and in vivo studies, as well as clinical trials.https://www.creative-biolabs.com/oncolytic-virus/category-pre-made-oncolytic-vaccinia-virus-291.htm
Pre-made Oncolytic HSV
Partial deletion of the HSV gene results in superior packaging capacity of >30 kb foreign DNA with low toxicity as an expression vector. Multiple modified purified oncolytic herpes simplex virus (oHSV) products can avoid evading the host immune response and reduce toxicity by gene knock-out, such as ICP0, ICP4, ICP22, ICP27 or ICP47.https://www.creative-biolabs.com/oncolytic-virus/category-pre-made-oncolytic-herpes-simplex-virus-290.htm
Pre-made Oncolytic Herpes Simplex Virus
Oncolytic viruses are using for the treatment of cancer due to the specific antitumor activity in tumor cells. Herpes simplex virus (HSV) is a human neurogenic dsDNA virus that has the characteristic of life-long latent infection of neurons and allows for long-term transgene expression.https://www.creative-biolabs.com/oncolytic-virus/category-pre-made-oncolytic-herpes-simplex-virus-290.htm
Oncolytic Virus Delivery
Oncolytic viruses have the potential to powerfully and selectively kill cancer cells and have shown impressive efficacy in preclinical and clinical settings. However, their potential can be restricted by inefficient delivery into the complex tumor environment. Thus, the efficient delivery of oncolytic viruses remains a significant challenge in the field of oncology, limiting their therapeutic effect. https://www.creative-biolabs.com/oncolytic-virus/approaches-to-delivery-of-oncolytic-viruses.htm
Oncolytic Virus Application
Numerous viruses are being developed pre-clinically and clinically. An investigation of all registered clinical trials in 2017 demonstrates 78 interventional trials regarding OVs. This ability for near-universal therapeutic impact in cancer makes OVs a popular therapeutic tool. Today, both preclinical and early-stage clinical trials are intensively investigating the approach to improve oncolytic virotherapy.
https://www.creative-biolabs.com/oncolytic-virus/applications-of-oncolytic-viruses-in-cancer-treatment.htm
Oncolytic Virus Animal Model
To fully optimize oncolytic virotherapy and provide meaningful mechanistic insight, it is important to have representative animal models of oncolysis in various tumor types. https://www.creative-biolabs.com/oncolytic-virus/animal-models-for-oncolytic-virus-study.htm
Abciximab mechanism of action
Abciximab (also known as abcixifiban or c7E3 Fab), is the Fab fragment of the chimeric human-murine, monoclonal antibody 7E3. It is composed of murine variable regions and human constant regions.https://www.creativebiolabs.net/abciximab-overview.htm
Abagovomab mechanism of action
Abagovomab is a murine monoclonal anti-idiotypic antibody (MW: 165-175 kDa), produced by a mouse hybridoma and generated against OC125, which serves to functionally imitate the human cancer antigen 125 (CA-125). https://www.creativebiolabs.net/abagovomab-overview.htm
Wnt Pathway
Wnt comprises a diverse family of secreted lipid-modified signaling glycoproteins that are 350-400 amino acids in length. Wnt is an acronym in the field of genetics that stands for 'Wingless/Integrated'.https://www.creativebiolabs.net/wnt-signaling-pathway.htm
TNF Pathway
TNF works through two receptors, TNFR1 and TNFR2. TNFR1 is the major signal receptor of TNF-α. TNFR2, which mediates limited biological responses, binds to TNF-α and TNF-β. TNF signaling transduction through TNFR1 and TNFR2 can induce a variety of cellular responses, which depends on many factors, including the metabolic state of the cell and the adaptor proteins present in the cell.https://www.creativebiolabs.net/tnf-signaling-pathway.htm
TLR Pathway
Innate immune receptors, also known as pattern recognition receptors (PRRs), have been identified in the serum, on the cell surface, in endosomes, and in the cytoplasm. Toll-like receptors (TLRs) is one of the particularly important groups of PRRs.https://www.creativebiolabs.net/tlr-signal-pathway.htm
TGF-β Pathway
Transforming growth factor beta (TGF-β) is a cytokine that participates in both physiological and pathological processes.https://www.creativebiolabs.net/tgf-beta-signaling-pathway.htm
TCR Pathway
T-cell receptor (TCR) is a heterodimers composed of α and β peptide chains. TCR is mainly responsible for recognizing the antigens presented by major histocompatibility complex (MHC) molecules on the surface of antigen presenting cells (APC).https://www.creativebiolabs.net/tcr-signal-pathway.htm
RAS Pathway
Ras, which is a low-molecular-weight GDP/GTP-binding guanine triphosphatase, is the prototypical member of the Ras superfamily of proteins. https://www.creativebiolabs.net/ras-signaling-pathway.htm
PPAR Pathway
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors, which are responsible for regulating gene expression.https://www.creativebiolabs.net/ppar-signaling-pathway.htm
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Non-respiratory Functions of the Lungs.pdf
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
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Oncolytic Virus Application
Numerous viruses are being developed pre-clinically and clinically. An investigation of all registered clinical trials in 2017 demonstrates 78 interventional trials regarding OVs. This ability for near-universal therapeutic impact in cancer makes OVs a popular therapeutic tool. Today, both preclinical and early-stage clinical trials are intensively investigating the approach to improve oncolytic virotherapy.
https://www.creative-biolabs.com/oncolytic-virus/applications-of-oncolytic-viruses-in-cancer-treatment.htm
Oncolytic Virus Animal Model
To fully optimize oncolytic virotherapy and provide meaningful mechanistic insight, it is important to have representative animal models of oncolysis in various tumor types. https://www.creative-biolabs.com/oncolytic-virus/animal-models-for-oncolytic-virus-study.htm
Abciximab mechanism of action
Abciximab (also known as abcixifiban or c7E3 Fab), is the Fab fragment of the chimeric human-murine, monoclonal antibody 7E3. It is composed of murine variable regions and human constant regions.https://www.creativebiolabs.net/abciximab-overview.htm
Abagovomab mechanism of action
Abagovomab is a murine monoclonal anti-idiotypic antibody (MW: 165-175 kDa), produced by a mouse hybridoma and generated against OC125, which serves to functionally imitate the human cancer antigen 125 (CA-125). https://www.creativebiolabs.net/abagovomab-overview.htm
Wnt Pathway
Wnt comprises a diverse family of secreted lipid-modified signaling glycoproteins that are 350-400 amino acids in length. Wnt is an acronym in the field of genetics that stands for 'Wingless/Integrated'.https://www.creativebiolabs.net/wnt-signaling-pathway.htm
TNF Pathway
TNF works through two receptors, TNFR1 and TNFR2. TNFR1 is the major signal receptor of TNF-α. TNFR2, which mediates limited biological responses, binds to TNF-α and TNF-β. TNF signaling transduction through TNFR1 and TNFR2 can induce a variety of cellular responses, which depends on many factors, including the metabolic state of the cell and the adaptor proteins present in the cell.https://www.creativebiolabs.net/tnf-signaling-pathway.htm
TLR Pathway
Innate immune receptors, also known as pattern recognition receptors (PRRs), have been identified in the serum, on the cell surface, in endosomes, and in the cytoplasm. Toll-like receptors (TLRs) is one of the particularly important groups of PRRs.https://www.creativebiolabs.net/tlr-signal-pathway.htm
TGF-β Pathway
Transforming growth factor beta (TGF-β) is a cytokine that participates in both physiological and pathological processes.https://www.creativebiolabs.net/tgf-beta-signaling-pathway.htm
TCR Pathway
T-cell receptor (TCR) is a heterodimers composed of α and β peptide chains. TCR is mainly responsible for recognizing the antigens presented by major histocompatibility complex (MHC) molecules on the surface of antigen presenting cells (APC).https://www.creativebiolabs.net/tcr-signal-pathway.htm
RAS Pathway
Ras, which is a low-molecular-weight GDP/GTP-binding guanine triphosphatase, is the prototypical member of the Ras superfamily of proteins. https://www.creativebiolabs.net/ras-signaling-pathway.htm
PPAR Pathway
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors, which are responsible for regulating gene expression.https://www.creativebiolabs.net/ppar-signaling-pathway.htm
VPI3K-AKT Pathway
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This product is an ADCC enhanced antibody produced by our Afuco™ platform. Recombinant monoclonal antibody to CD19.
https://www.creativebiolabs.net/anti-cd19-adcc-enhanced-antibody-taplitumomab-105903.htm
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Recombinant chimeric antibody expressed in CHO binding to human CAIX. Girentuximab is a chimeric monoclonal antibody designed for the treatment of renal cell carcinoma.
https://www.creativebiolabs.net/Anti-CAIX-CA9-Therapeutic-Antibody-Rencarex-13758.htm
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Recombinant mouse monoclonal antibody expressed in CHO binding to human B-lymphoma cell. Detumomab is a mouse monoclonal antibody developed for the treatment of cancer.
https://www.creativebiolabs.net/Anti-B-cell-lymphomas-Therapeutic-Antibody-detumomab-326.htm
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Recombinant monoclonal antibody to P. aeruginosa. Panobacumab (proposed INN) is a monoclonal antibody designed as an antibacterial against P. aeruginosa. It is a fully human pentameric IgM antibody with a mouse J chain.
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Anti-B. Anthracis Anthrax Protective Antigen (Raxibacumab)
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Afuco™ Anti-AFP ADCC Recombinant Antibody (Tacatuzumab), ADCC Enhanced
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https://www.creativebiolabs.net/anti-afp-adcc-enhanced-antibody-tacatuzumab-105879.htm
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Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
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Physiology of Chemical Sensation of smell.pdf
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
Physiology of Special Chemical Sensation of Taste
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
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