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Rejection
RejectionThe process by which the body tries to get rid of a transplanted organ or tissue by producing antibodies. Immunosuppressive drugs help to prevent rejection. RELATED TERMS-------------------------------------- Organ A structural unit of an animal or plant that serves a specific function. Tissue Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades. Antibodies Proteins produced by white blood cells. They confer immunity. Rejection The process by which the body tries to get rid of a transplanted organ or tissue by producing antibodies. Immunosuppressive drugs help to prevent rejection. SIMILAR TERMS-------------------------------------- PREVIOUS AND NEXT TERMS-------------------------------------- Radioactive Tracer A low-dose radioactive dye or contrast medium injected into a blood vessel as part of an imaging procedure. Radiofrequency An invasive procedure that involves heating tissue in order to destroy it.; used to treat some types of rapid heart rhythms. Raynaud’s Phenomenon Spasms of the small arteries of the fingers, and sometimes, the toes, brought on by exposure to cold or excitement. Red blood Cell (erythrocyte, red cell, red corpuscle) Red blood cell that delivers oxygen to tissues and removes carbon dioxide and other waste products. Recipient A patient who receives an organ, tissue or blood from another person. Rejection Renal Artery Disease Most commonly caused by atherosclerosis of the renal arteries (see above). It occurs in people with generalized vascular disease. Renal Artery Stenosis Narrowing or blockage of an artery to the kidney which may lead to high blood pressure or kidney damage. Renal Artery Ultrasound A non-invasive imaging procedure that uses high-frequency sound waves to view the arteries supplying the kidneys to determine the presence of narrowing. Renin An enzyme produced by the kidney. Renin is released into the bloodstream by the kidneys in order to regulate blood pressure Restenosis The closing or narrowing of an artery that was previously opened by a cardiac procedure such as angioplasty. We thank you for using the Medical Glossary to search for Rejection. If you have a better definition for Rejection than the one presented here, please let us know by making use of the suggest a term option. This definition of Rejection may be disputed by other professionals. Our attempt is to provide easy definitions on Rejection and any other medical topic for the public at large.
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