| mes- | 1. <prefix> A combining form denoting in the middle, intermediate; specif. 2. <chemistry> Denoting a type of hydrocarbons which are regarded as methenyl derivatives. Also used adjectively. Origin: Gr. In the middle. (29 Oct 1998) |
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| mesaconate | <chemistry> A salt of mesaconic acid. Source: Websters Dictionary (01 Mar 1998) |
| mesaconic | <chemistry> Pertaining to, or designating, one of several isomeric acids obtained from citric acid. Origin: Mes- + -aconic, as in citraconic. Source: Websters Dictionary (01 Mar 1998) |
| mesad | Passing or extending toward the median plane of the body or of a part. Synonym: mesiad. Origin: G. Mesos, middle, + L. Ad, to (05 Mar 2000) |
| mesal | Rarely used term referring to the median plane of the body or a part. Origin: G. Mesos, middle (05 Mar 2000) |
| mesalamine | <chemical> An anti-inflammatory agent, structurally related to the salicylates, which is active in inflammatory bowel disease. It is considered to be the active moiety of sulphasalazine. Pharmacological action: non-steroidal anti-inflammatory agents. (12 Dec 1998) |
| mesamboid | <biology> One of a class of independent, isolated cells found in the mesoderm, while the germ layers are undergoing differentiation. Origin: Mes- + amboid. Source: Websters Dictionary (01 Mar 1998) |
| mesameboid | Minot's term for a primitive, "wandering" cell derived from mesoderm, probably a haemocytoblast. Origin: mes-+ G. Amoibe, change (amoeba), + eidos, resemblance (05 Mar 2000) |
| mesangial | Referring to the mesangium. (05 Mar 2000) |
| mesangial cell | <pathology> Cells found within the glomerular lobules of mammalian kidney, where they serve as structural supports, may regulate blood flow, are phagocytic and may act as accessory cells, presenting antigen in immune responses. (18 Nov 1997) |
| mesangial nephritis | Glomerulonephritis with an increase in glomerular mesangial cells or matrix, or mesangial deposits. (05 Mar 2000) |
| mesangial proliferative glomerulonephritis | <nephrology, pathology> Inflammation of the kidney glomerulus (blood filtering portion of the kidney) due to the abnormal deposition of IgM antibody in the mesangium layer of the glomerular capillary. A form of glomerulonephritis that appears to be caused by an abnormal immune response. This disorder generally manifests as nephrotic syndrome. Symptoms include swelling, dark urine, weight gain, hypertension, anorexia and bloody urine. Acronym: MPGN (05 Jan 1998) |
| mesangiocapillary glomerulonephritis | <nephrology, pathology> A kidney disorder which results in kidney dysfunction. Inflammation of the glomeruli result from an abnormal immune response and the deposition of antibodies within the kidney (glomerulus) ultrastructure. Membranoproliferative glomerulonephritis has been divided into two different types in the basis of where the antibodies are deposited in the glomerulus. MPGN type I, the more common type, deposits antibodies in the subendothelial layer of the basement membrane, whereas type II deposits antibodies in the bottom layer of the basement membrane. Symptoms include cloudy urine (pyuria), decreased urine output, swelling and hypertension. This disorder often results in end-stage renal disease. (27 Sep 1997) |
| mesangium | A central part of the renal glomerulus between capillaries; mesangial cells are phagocytic and for the most part separated from capillary lumina by endothelial cells. Origin: mes-+ G. Angeion, vessel Extraglomerular mesangium, mesangial cells that fill the triangular space between the macula densa and the afferent and efferent arterioles of the juxtaglomerular apparatus. Synonym: polkissen of Zimmermann. (05 Mar 2000) |
| mesaortitis | Inflammation of the middle or muscular coat of the aorta. Origin: mes-+ aortitis (05 Mar 2000) |