'Major histocompatibility complex' diaporamas de présentation

Chapter 43

Chapter 43. The Immune System. Overview: Reconnaissance, Recognition, and Response. Barriers help an animal to defend itself from the many dangerous pathogens it may encounter.

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Cytokines

Cytokines. Cytokines are small secreted proteins which mediate and regulate immunity, inflammation, and hematopoiesis. They generally (although not always) act over short distances and short time spans and at very low concentration.

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The Immune System

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Evolution by Gene Duplication

Evolution by Gene Duplication. Wen-Hsiung Li, Ph.D. James Watson Professor Ecology and Evolution University of Chicago. Topics. Increase in gene number from simple to complex organisms Evolutionary significance: Why gene duplication? Examples of duplicate genes

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Diabetes Mellitus

Diabetes Mellitus. Emad Raddaoui , MD, FCAP, FASC Associate Professor; Consultant Histopathology & Cytopathology. Diabetes Mellitus.

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CHAPTER 23 Molecular Immunology

CHAPTER 23 Molecular Immunology. Receptors and Immunity Innate Immunity and Pattern Recognition. Some PRMs are membrane-integrated proteins found almost exclusively on phagocytes.

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Innate Defenses

Innate Defenses. Surface barriers Skin, mucous membranes, and their secretions ________________________________________ to most microorganisms _________________________________________ is resistant to weak acids and bases, bacterial enzymes, and toxins

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Exam 1

Exam 1. Monday, Tuesday, Wednesday next week WebCT testing centre Covers everything up to and including hearing (i.e. the previous lecture). Exam 1. Karla will host a review session PE250 3:00 to 4:00 Friday February 4 Bring specific questions to ask.

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Management of Neuromuscular Disorders

Management of Neuromuscular Disorders. February 2007. Neuromuscular Disorders. Myasthenia gravis (14/100,000) Multiple sclerosis ( 1/1000) Motor neurone disease ( 4.0 per 100,000) Others: spasticity; restless legs. Myasthenia Gravis. women in their 20s and 30s and men over the age of 60

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The Adaptive Immune Response

The Adaptive Immune Response. Chapter 16. Note: In this class, antibody and immunoglobulin are synonymous. The Adaptive Response is Slow to Start.

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Overview of the Immune System Chapter 1

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By: Sara Ibrahim Tel. # 122515975 E-mail: sursur555@hotmail.com

Cancer and The Immune System. By: Sara Ibrahim Tel. # 122515975 E-mail: sursur555@hotmail.com. Cancer and The Immune Response. Introduction Ags expressed by cancer cells Nature of immune response How cancer evades immune system. Cancer Introduction .

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Current Trends in Transplantation

Current Trends in Transplantation. Karin True MD, FASN Assistant Professor UNC Kidney Center May 23, 2011. ESRD Treatment Modalities. Incident patients. Prevalent patients. USRDS 2010 ADR. Incident ESRD patients receiving a transplant within three years of ESRD registration. illi. illi.

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T LYMPHOCYTES

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The Immune System

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Adaptive Immunity

Adaptive Immunity. Adaptive immunity develops as the need arises. Two types: - Humoral immunity - Mediated by B cells (B lymphocytes) - Produce antibodies that directly target antigens of invaders - Cell-mediated immunity - Involve T cells (T lymphocytes)

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??? ???? ?????? ??????. Major Histocompatibility Complex (MHC). Major Histocompatibility Complex (MHC). * The MHC is a closely linked complex of genes that govern production of the major histocompatibility * In humans, MHC resides on the short arm of chromosome 6

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Humoral Immunity: B Cells

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Multiple Alleles, Multiple Genes, and Lethality

Multiple Alleles, Multiple Genes, and Lethality. Multiple Alleles Multiple Genes Lethality. A. Multiple Alleles. Examples: ABO blood groups in humans Coat color in rabbits Genetic polymorphism vs. genetic monomorphism Major histocompatibility complex (HLA in humans) Story of the cheetah.

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