Hypersemstivity
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This document discusses and classifies the different types of hypersensitivity reactions. It provides a table that outlines the five main types of hypersensitivity: Type I involves IgE antibodies and causes immediate reactions; Type II involves IgG and IgM antibodies against cell antigens and causes cytotoxic reactions; Type III involves antigen-antibody complexes and causes immune complex-mediated reactions; Type IV is cell-mediated and involves T cells; and Type V is described as a distinction from Type II where antibodies bind to cell surface receptors instead of antigens. Examples of Type V reactions include Graves' disease and myasthenia gravis.
Hypersemstivity
- 1. -HYPERSENSITIVITY BY Archana Soni Assistant Professor Shri Shankaracharya Mahavidyalaya, Junwani, Bhilai (C. G.) INDIA
- 2. INTRODUCTION-HYPERSENSITIVITY CLASSIFICATION OF HYPERSENSITIVITY TABULAR REPRESENTATION OF HYPERSENSITIVITY TYPE-I HYPERSENSITIVITY TYPE-II HYPERSENSITIVITY TYPE-III HYPERSENSITIVITY TYPE-IV HYPERSENSITIVITY TYPE-V HYPERSENSITIVITY SUMMARY REFRENCES
- 3. HYPERSENSITIVITY (Immunological Reaction)-It refers to a set of undesirable immune reactions produced by the normal immune system includes allergy and immune response. HYPERSENSITIVITY REACTIONS-When a state of altered reactivity in which the body reacts with an exaggerated immune response to a foreign agent. OR When an immune response result in exaggerated OR in appropiate reactions harmful to the host the term hypersensitivity OR allergy used.
- 4. TYPES TYPE OF IMMUNITY MEDIATORS REACTIONS TYPE-I Antibody mediated IgE(Rarely IgG4) Immediate TYPE-II Antibody mediated IgG, IgM(Cell-Ag) Cytotoxic TYPE-III Antibody mediated Ag-Ab complexes Immune complex TYPE-IV Cell-mediated T-cells Cell-mediated TYPE-V -----
- 23. This is the additional type of hypersensitivity that is specially used as a distinction from type-II. Instead of binding to cell surfaces , the antibodies recognize and bind to cell surface receptors , which either prevents the intended ligand binding with receptors with the receptor or mimics the effects of the ligand thus impairing cell signaling. Some ex-Graves’ Disease; Myasthenia gravis
- 25. BOOKS:- IMMUNOLOGY BY FATIMA SHEIKH PDFs:- IMMUNOLOGY pdfs INTERNET:- www.slideshare.in www.linkedin.in www.wikipedia.in