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Sensitization (immunology)
In immunology, the term sensitization is used for the following concepts:Anderson DM, ed. (2003). "Sensitization." ''Dorland's Illustrated Medical Dictionary'', 30th ed. Philadelphia: Saunders, p. 1680. .Brown MJ, ed. (1992). "Sensitization." '' Miller-Keane Encyclopedia & Dictionary of Medicine, Nursing, and Allied Health'', 5th ed. Philadelphia; London: Saunders, p. 1352. .Pugh MB, ed. (2000). "Sensitization." '' Stedman's Medical Dictionary'', 27th ed. Philadelphia: Lippincott Williams and Wilkins, p. 1619. .Tada T, Taniguchi M, Okumura Y, Miyasaka M, eds. (1993). "Sensitization." ''Dictionary of Terms in Immunology'', 3rd ed. Osaka: Saishin-Igakusha, Ltd., p. 510. C3547 (in Japanese). * Immunization by inducing an adaptive response in the immune system. In this sense, sensitization is the term more often in usage for induction of allergic responses.Janeway C, Travers P, Walport M, Shlomchik M, eds. (2001). ''Immunobiology 5: The Immune System in Health and Disease.'' New York: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Immunology
Immunology is a branch of medicineImmunology for Medical Students, Roderick Nairn, Matthew Helbert, Mosby, 2007 and biology that covers the medical study of immune systems in humans, animals, plants and sapient species. In such we can see there is a difference of human immunology and comparative immunology in veterinary medicine and animal biosciences. Immunology measures, uses charts and differentiate in context in medicine the studies of immunity on cell and molecular level, and the immune system as part of the physiological level as its functioning is of major importance. In the different states of both health, occurring symptoms and diseases; the functioning of the immune system and immunological responses such as autoimmune diseases, allergic hypersensitivities, or in some cases malfunctioning of immune system as for example in immunological disorders or in immune deficiency, and the specific transplant rejection) Immunology has applications in numerous disciplines of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorland's Illustrated Medical Dictionary
''Dorland's'' is the brand name of a family of medical reference works (including dictionaries, spellers and word books, and spell-check software) in various media spanning printed books, CD-ROMs, and online content. The flagship products are ''Dorland's Illustrated Medical Dictionary'' (currently in its 33rd edition) and ''Dorland's Pocket Medical Dictionary'' (currently in its 30th edition). The principal dictionary was first published in 1890 as the ''American Illustrated Medical Dictionary'', including 770 pages. The pocket edition, called the ''American Pocket Medical Dictionary'', was first published in 1898, consisting of just over 500 pages. With the death of the editor William Alexander Newman Dorland, AM, MD in 1956, the dictionaries were retitled to incorporate his name, which was how they had generally come to be known. The illustrated dictionary had grown to 2144 pages for the 33rd edition. The dictionaries were historically published by Saunders. List of products ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miller-Keane Encyclopedia & Dictionary Of Medicine, Nursing, And Allied Health
The ''Miller-Keane Encyclopedia & Dictionary of Medicine, Nursing, and Allied Health'' is written for use by students and health care providers including medics, nurses, and paramedics. The entries are alphabetical and compiled with multidisciplinary collaboration. Illustrations and tables were included from the sixth edition. The latest edition is the seventh, which lists over 40,000 terms and was published in 2005. The book has been reviewed by publications including the ''American Journal of Occupational Therapy'', '' Gastroenterology Nursing'', ''Annals of the Rheumatic Diseases The ''Annals of the Rheumatic Diseases'' is a peer-reviewed medical journal. It is published by the BMJ Group on behalf of the European League Against Rheumatism and covers all aspects of rheumatology, including musculoskeletal conditions, arthrit ...'', '' Hospitals & Health Networks'', and '' Hospital Topics''. References Medical dictionaries {{med-book-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stedman's Medical Dictionary
''Stedman's Medical Dictionary'' is a professional medical dictionary developed for medical students, physicians, researchers, and medical language specialists. Entries include medical terms, abbreviation, acronyms, measurements, and more. Pronunciation and word etymology (showing mostly Latin and Greek prefixes and roots) are provided with most definitions. ''Stedman’s Medical Dictionary'' and related products are available with subscription on Stedman's Online. History First produced as ''Dunglison’s New Dictionary of Medical Science and Literature'' in 1833 by Robley Dunglison (1789–1869). Robley Dunglison was a professor of medicine at the University of Virginia. He was the personal physician to presidents Jefferson, Madison, Monroe, Jackson. In 1903, Thomas Lathrop Stedman became the editor of the medical dictionary and made thorough revisions to the text. The first edition of ''Stedman’s Medical Dictionary'' was published in 1911."Thomas Lathrop Stedman". HighLights: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Immunization
Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an infectious agent (known as the immunogen). When this system is exposed to molecules that are foreign to the body, called ''non-self'', it will orchestrate an immune response, and it will also develop the ability to quickly respond to a subsequent encounter because of immunological memory. This is a function of the adaptive immune system. Therefore, by exposing a human, or an animal, to an immunogen in a controlled way, its body can learn to protect itself: this is called active immunization. The most important elements of the immune system that are improved by immunization are the T cells, B cells, and the antibodies B cells produce. Memory B cells and memory T cells are responsible for a swift response to a second encounter with a foreign molecule. Passive immunization is direct introduction of these elements into the body, instead of production of these elements b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allergic Response
An allergic response is a hypersensitive immune reaction to a substance that normally is harmless or would not cause an immune response in everyone. An allergic response may cause harmful symptoms such as itching or inflammation or tissue injury. Mechanism Allergies are an abnormal immune reaction. The human immune system is designed to protect the body from potential harm and in people who have allergies the immune system will react to allergens (substances that trigger an immune response). The immune system will produce immunoglobulin E, IgE, antibodies for each allergen. The antibodies will cause cells in the body to produce histamine. This histamine will act on different areas of the body (eyes, throat, nose, gastrointestinal tract, skin or lungs) to produce symptoms of an allergic reaction. The allergic response is not limited to a certain amount of exposure. If the body is exposed to the allergen multiple times the immune system will react every time the allergen is prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erythrocytes
Red blood cells (RBCs), also referred to as red cells, red blood corpuscles (in humans or other animals not having nucleus in red blood cells), haematids, erythroid cells or erythrocytes (from Greek ''erythros'' for "red" and ''kytos'' for "hollow vessel", with ''-cyte'' translated as "cell" in modern usage), are the most common type of blood cell and the vertebrate's principal means of delivering oxygen (O2) to the body tissues—via blood flow through the circulatory system. RBCs take up oxygen in the lungs, or in fish the gills, and release it into tissues while squeezing through the body's capillaries. The cytoplasm of a red blood cell is rich in hemoglobin, an iron-containing biomolecule that can bind oxygen and is responsible for the red color of the cells and the blood. Each human red blood cell contains approximately 270 million hemoglobin molecules. The cell membrane is composed of proteins and lipids, and this structure provides properties essential for physiologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Complement-fixation Test
The complement fixation test is an immunological medical test that can be used to detect the presence of either specific antibody or specific antigen in a patient's serum, based on whether complement fixation occurs. It was widely used to diagnose infections, particularly with microbes that are not easily detected by culture methods, and in rheumatic diseases. However, in clinical diagnostics labs it has been largely superseded by other serological methods such as ELISA and by DNA-based methods of pathogen detection, particularly PCR. Process The complement system is a system of serum proteins that react with antigen-antibody complexes. If this reaction occurs on a cell surface, it will result in the formation of trans-membrane pores and therefore destruction of the cell. The basic steps of a complement fixation test are as follows: # Serum is separated from the patient. # Patients naturally have different levels of complement proteins in their serum. To negate any effects this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coombs Test
A Coombs test, also known as antiglobulin test (AGT), is either of two blood tests used in immunohematology. They are the direct and indirect Coombs tests. The direct Coombs test detects antibodies that are stuck to the surface of the red blood cells. Since these antibodies sometimes destroy red blood cells, a person can be anemic and this test can help clarify the condition. The indirect Coombs detects antibodies that are floating freely in the blood. These antibodies could act against certain red blood cells and the test can be done to diagnose reactions to a blood transfusion. The direct Coombs test is used to test for autoimmune hemolytic anemia—that is, a condition where the immune system breaks down red blood cells, leading to anemia. The direct Coombs test is used to detect antibodies or complement proteins attached to the surface of red blood cells. To perform the test, a blood sample is taken and the red blood cells are washed (removing the patient's own plasma and unbou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fab Regions
The fragment antigen-binding region (Fab region) is a region on an antibody that binds to antigens. It is composed of one constant and one variable domain of each of the heavy and the light chain. The variable domain contains the paratope (the antigen-binding site), comprising a set of complementarity-determining regions, at the amino terminal end of the monomer. Each arm of the Y thus binds an epitope on the antigen. Preparation In an experimental setting, Fc and Fab fragments can be generated in the laboratory. The enzyme papain can be used to cleave an immunoglobulin monomer into two Fab fragments and an Fc fragment. Conversely, the enzyme pepsin cleaves below the hinge region, so the result instead is a F(ab')2 fragment and a pFc' fragment. Recently another enzyme for generation of F(ab')2 has been commercially available. The enzyme IdeS (Immunoglobulin degrading enzyme from ''Streptococcus pyogenes'', trade name FabRICATOR) cleaves IgG in a sequence specific manner at neut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gelatin
Gelatin or gelatine (from la, gelatus meaning "stiff" or "frozen") is a translucent, colorless, flavorless food ingredient, commonly derived from collagen taken from animal body parts. It is brittle when dry and rubbery when moist. It may also be referred to as hydrolyzed collagen, collagen hydrolysate, gelatine hydrolysate, hydrolyzed gelatine, and collagen peptides after it has undergone hydrolysis. It is commonly used as a gelling agent in food, beverages, medications, drug or vitamin capsules, photographic films, papers, and cosmetics. Substances containing gelatin or functioning in a similar way are called gelatinous substances. Gelatin is an irreversibly hydrolyzed form of collagen, wherein the hydrolysis reduces protein fibrils into smaller peptides; depending on the physical and chemical methods of denaturation, the molecular weight of the peptides falls within a broad range. Gelatin is present in gelatin desserts, most gummy candy and marshmallows, ice creams, dips ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latex
Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latexes are found in nature, but synthetic latexes are common as well. In nature, latex is found as a milky fluid found in 10% of all flowering plants (angiosperms). It is a complex emulsion that coagulates on exposure to air, consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins, and gums. It is usually exuded after tissue injury. In most plants, latex is white, but some have yellow, orange, or scarlet latex. Since the 17th century, latex has been used as a term for the fluid substance in plants, deriving from the Latin word for "liquid". It serves mainly as defense against herbivorous insects. Latex is not to be confused with plant sap; it is a distinct substance, separately produced, and with different functions. The word latex is also used to refer to natural latex rubber, particularly non-vulcanized rubber. Such is the case in products like latex gloves, latex condoms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
