Immediate Hypersensitivity Written by NCI Thesaurus v.07.09d   

Definition of Immediate Hypersensitivity Immediate hypersensitivity reaction - type I reaction, involves immunoglobulin E (IgE)-mediated release of chemical mediators from mast cells and basophils. Th2 cells produce IL-4 and IL-13, which then act on B cells to promote the production of antigen-specific IgE. Reexposure to the antigen can then result in the antigen binding to and cross-linking the bound ige antibodies on the mast cells and basophils. This causes the release of preformed mediators (histamine, tryptase, tryptase, chemotactic factors), newly synthesized mediators (leukotrienes, prostaglandin, thromboxane, platelet-activating factor, adenosine, bradykinin), and cytokines from these cells that results in structural and functional changes to the affected tissue. Immediate Hypersensitivity is from the group Hypersensitivity Other Names for Immediate Hypersensitivity Immediate Hypersensitivity Source NCI Thesaurus License

 

< Prev		Next >

Common Diseases

Diabetes - disease and management information, including diagnosis, typical treatment plans and diabetes supplies.

Medical Careers

The US job market has stayed hot for health care providers. Whether you believe that a provider shortage is in the offing or that the ratio of physicians-to-patients is too high, physician jobs and nursing jobs abound.

A wide variety of medical jobs can be found in the netdoc health care job listings. Particular strengths include permanent and locum tenens physician jobs, nursing jobs across the US, and radiology positions.

Other resources include physician salary information, medical career guidance, and the ability to post physician jobs.

Medical Specialties

For specialty salary and job information, see medical specialty pages like cardiology, OB/Gyn,  and internal medicine specialty pages. Practice tools, like Psychiatry EMR and software for other specialties are available through individual specialty pages.

Medical dictionary