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ANTIGEN in Medical Dictionary

Anaphylaxis

... introduction of a foreign protein or other antigen into the body tissue s. Anaphylaxis : ... reaction to a previously encountered antigen . Antibody An immune system protein made to fight infection . antigen A foreign substance detected that provokes an ...

Antibody

... cells ( plasma cells) as a reaction to an antigen (foreign substance) for the purpose of host ... of the body's past experience or exposure to an antigen , or something that the body does not recognize ... a weapon against foreign invaders in the body. antigen The chemical that stimulates an immune response ....

Antigen

... antigen ic drift: A mechanism for variation by virus es ... previous strains making it easier for ... antigen - A foreign substance, bacteria , or virus ... possible by a generous donation from: ... The antigen tests are used if the person has a medical ...

B virus

... outer capsule contains the hepatitis B surface antigen (HBsAg). The inner core contains HBV core antigen (HBcAg) and hepatitis B e- antigen (HBeAg). Hepatitis B virus (HBV) causes a ...

Complement

... process and serve as the primary mediator in antigen - antibody reactions of the B cell mediated ... can be started in several ways, especially by antigen - antibody complexes. Alternative or ... sequence of events, usually triggered by an antigen - antibody complex, in which each component of ...

Delta

... (THC), ... T-cells, the antigen peptides must be presented on Class II MHC, and in the case of killer T-cells , the antigen peptides must be presented on Class I MHC. The T- cell antigen receptor consists of either an alpha / beta ...

ELISA

... Definition: A rapid test where an antibody or antigen is linked to an enzyme as a means of detecting a match between the antibody and antigen . ELISA tests are utilized to detect substances that have antigen ic properties, primarily protein s (as opposed ...

Hepatitis

... capsule contains the hepatitis B surface antigen (HBsAg). The inner core contains HBV core antigen (HBcAg) and hepatitis B e- antigen (HBeAg). Hepatitis B immunization : A ...

Hepatitis b

... outer capsule contains the hepatitis B surface antigen (HBsAg). The inner core contains HBV core antigen (HBcAg) and hepatitis B e- antigen (HBeAg). Hepatitis B The hepatitis B ...

Immune response

... Immune response A response from the body to an antigen that occurs when the antigen is identified as foreign and that induces the ... and lymphocyte s capable of destroying the antigen or making it harmless. Immunoglobulin ... ...

Immunity

... which identifies certain foreign substances ( antigen s) as harmful to the body. For this reason, the ... or temporary. IMMUNIZATION : Administration of antigen ic components of an infectious agent to stimulate ... usually foreign, protein or particle called an antigen . Because immunity from the pertussis ...

Immunization

... . IMMUNIZATION : Administration of antigen ic components of an infectious agent to stimulate ... in resistance to tumours. They do not exhibit antigen ic specificity and their number does not increase ... pallidum, whose products encode opsonic antigen s. Such ...

Immunology

... APC ( immunology ): antigen -presenting cell , a cell that can "present" antigen in a form that T cells can recognize it. Among ... interests in patho physiology and protective antigen s for vaccine s. Studies by the Department of ...

Injection

... Service. IMMUNE COMPLEX: Clusters formed when antigen s and antibodies bind together. Botox ... To treat with frequent, small injection s of an antigen to decrease the symptoms of an allergy to that antigen . Also called desensitization . hypospadias An ...

Innate

... and is not due to prior sensitization to an antigen from, for example, an infection or vaccination . Since it is not stimulated by specific antigen s, innate immunity is generally nonspecific. ... activity. They do not respond only to specific antigen s, as do B cells and T cells. Basophils, ...

Prostate

... Prostate -specific antigen ( PSA ) test: A test that measures the level of ... Americans and Hispanics. Prostate -specific antigen ( PSA ) is a glyco protein in the cytoplasm of ... the life expectancy. PSA ( Prostate -specific antigen ) A marker used to determine prostate disease ...

PSA

... the amount of PSA ( prostate -specific antigen ) in the blood . PSA test: Is it necessary ... ... PSA Blood Test Prostate -specific antigen ( PSA ) is a glyco protein in the cytoplasm of ... test measures the level of prostate specific antigen in your blood . PSA is an enzyme that is ...

Rh factor

... genetic inheritance. Rh factor One of the antigen s present on red blood cells. Used in ... a person has. rheumatism ... Rh factorAn antigen that is found on the red blood cells of most ... be produced by any of the other blood group antigen s, such as those of the AOB system. You need a ...

Serology

... . This test examines blood serum for antigen s and antibodies. An antigen is any substance that causes your body to ... produced by your immune system in response to antigen s. CBC (increased eosinophil s) Muscle ...

Shock

... as a few days. HSP (heat shock protein ) antigen HSP- antigen complexes derived from an individual patient's ... life-threatening immune system reaction to an antigen that a person has been previously exposed to. ...

Titer

... of the body's past experience or exposure to an antigen , or something that the body does not recognize ... [3,12] High- titer antibodies to virus capsid antigen and early antigen , especially of high IgA class, or high titer s ...

Transplantation

... , it means identity in all transplantation antigen s . These antigen s, in turn, are collectively referred to as histocompatibility antigen s. Also refers to the similarity of tissue ...

Allergen

... from: ... Allergen s Allergen Allergy -provoking substance An antigen (substance that elicits an antibody response) is responsible for ... : An immediate or delayed immune reaction caused by exposure to an antigen ( allergen ). A condition in which the number of eosinophil s (a type ...

Allergy

... : An immediate or delayed immune reaction caused by exposure to an antigen ( allergen ). - Allergy specialists successfully treat individuals ... The treatment of hay fever consists of removing the environmental antigen , if possible, and implementing drug therapy and immunotherapy ( allergy ...

Anthrax

... Anthrax toxin is made up of three protein s. One is protective antigen and two are enzyme s that are called edema factor and lethal factor. The protective antigen binds to surface receptors on the host 's cell membrane s. ...

Antibody titer

... blood is a reflection of the body's past experience or exposure to an antigen , or something that the body does not recognize as self. FLUORESC ENT ... test (positive for infectious mononucleosis ) Epstein-Barr virus antigen by immunofluorescence (positive for EBV) Epstein-Barr virus ...

Antiserum

... anus ... Specific lab technique: Monospecific (specific for only one antigen ) antiserum is overlaid on the zone of the electrophoretogram (the paper ... the use of antiserum ( serum that contains antibodies for a particular antigen ) in several tests that measure the protein and protein -bound ...

Blood typing

... is a test to classify blood by determining the absence or presence of antigen s on the red blood cells and the presence or absence of antibodies to these antigen s in the serum . Alternative Names: ... blood typing - to check the ...

Cell

... surface and participates in the immune response by recognizing foreign antigen s and secreting substances called cytokines that activate T and B cells. ... of such reactions with specific T- cell responses to birch pollen antigen s in the blood and lesion al skin was examined as well. ...

Confusion

... of cell surface markers. CLL lymphocyte s coexpress the B- cell antigen s CD19 and CD20 along with the T- cell antigen CD5. Confusion , nausea , loss of appetite , and visual ...

Desensitization

... and vomiting ... To treat with frequent, small injection s of an antigen to decrease the symptoms of an allergy to that antigen . Also called desensitization . hypospadias An abnormal opening of the ...

Diagnosis

... are met: history of a cat bite or scratch, positive skin test to CSD antigen or positive antibody test, all other explanations for the swollen ... s that develop after exposure to medications or a foreign substance ( antigen ) and the pattern of symptoms. The diagnosis of cancer often ...

Epstein

... a blood test to detect antibodies to the Epstein -Barr virus (EBV) antigen s. EPSTEIN -BARR VIRUS - The virus that is responsible for ... test (positive for infectious mononucleosis ) Epstein -Barr virus antigen by immunofluorescence (positive for EBV) Epstein -Barr virus ...

Epstein-barr Virus

... a blood test to detect antibodies to the Epstein-Barr virus (EBV) antigen s. EPSTEIN-BARR VIRUS - The virus that is responsible for ... test (positive for infectious mononucleosis ) Epstein-Barr virus antigen by immunofluorescence (positive for EBV) Epstein-Barr virus ...

Hand

... is crucial for the generation of an effective immune response . After an antigen binds receptors on an individual T- cell , the antigen stimulates the T- cell to secrete IL-2 and to make IL-2 receptors. ...

Hyposensitization

... hyposensitization To treat with frequent, small injection s of an antigen to decrease the symptoms of an allergy to that antigen . Also called desensitization . hypospadias ... It is also called ...

Idiopathic

... parts of an antibody 's variable region, which can themselves serve as antigen s. See Antibodies; antigen . IDU: Injection drug use or user. Idiopathic loss, which means ...

Immunoglobulin

... B and T cell screen Elevated alpha fetoprotein (AFP) Carcinoembryonic antigen (CEA) Increased tendency of chromosomes to break on exposure to ... disease is thought to be immunological, but immunoglobulin s and drug antigen s have been found in only a few cases. Measures of saliva ry secretory ...

Leukocytes

... broad-based activity. They do not respond exclusively to specific antigen s, as do B-cells and T-cells. Mononuclear Leukocytes : Monocyte s ... ankylosing spondylitis and Reiter's syndrome will have the HLA-B27 antigen present on the leukocytes . Leukocyte esterase detects leukocytes ...

Lesion

... fluid. This type of reaction is characterized by persistance of the antigen within macrophage s as well as of the lesion . Such antigen s are particulate matter such as talc and silica but also myco bacteria . ...
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