types of hypersenstivity, detailed notes

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
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