| MA | malignant arrhythmia; management and administration; mandelic acid; masseter; Master of Arts; matern... |
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| N&D | nodular and diffuse |
| SISS | Sentinel Injury Surveillance System [for Gunshot and Stab Wounds] small inducible secreted substance... |
| SVP | selective vagotomy and pyloroplasty; small volume parenteral [infusion]; standing venous pressure; s... |
| ADCC cell | Antibody Dependent Cellular(= Cell-Mediated) Cytotoxicity cell |
| ribonucleoproteins, small nuclear | Highly conserved nuclear RNA-protein complexes that function in RNA processing in the nucleus, including pre-mRNA splicing and pre-mRNA 3'-end processing in the nucleoplasm. The u3 snrnp is localised in the nucleolus, where it aligns into base pairs with the 28s rrna precursor in a still unidentified region and functions in pre-rrna processing. The u7 snrnp aligns into base pairs with a conserved sequence in the 3'-end of histone pre-mRNA and is an essential cofactor for the cleavage that creates the mature nonadenylated 3'-end. (12 Dec 1998) |
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| ribonucleoproteins, small, u1 | A nuclear RNA-protein complex that plays a role in RNA processing. In the nucleoplasm, the u1 snrnp along with other small ribonucleoproteins (u2, u4-u6, and u5) assemble into spliceosomes that remove introns from pre-mRNA by splicing. The u1 snrnp base pairs with conserved sequence motifs at the 5'-splice site and recognises both the 5'- and 3'-splice sites and may have a fundamental role in aligning the two sites for the splicing reaction. (12 Dec 1998) |
| ribonucleoproteins, small, u2 | A nuclear RNA-protein complex that plays a role in RNA processing. In the nucleoplasm, the u2 snrnp along with other small ribonucleoproteins (u1, u4-u6, and u5) assemble into spliceosomes that remove introns from pre-mRNA by splicing. The u2 snrnp base pairs with conserved sequence motifs at the branch point, which associates with a heat- and rnaase-sensitive factor in an early step of splicing. (12 Dec 1998) |
| ribonucleoproteins, small, u4-u6 | A nuclear RNA-protein complex that plays a role in RNA processing. In the nucleoplasm, the u4-u6 snrnp along with the u5 snrnp preassemble into a single 25s particle that binds to the u1 and u2 snrnps and the substrate to form mature spliceosomes. There is also evidence for the existence of individual u4 or u6 snrnps in addition to their organization as a u4-u6 snrnp. (12 Dec 1998) |
| ribonucleoproteins, small, u5 | A nuclear RNA-protein complex that plays a role in RNA processing. In the nucleoplasm, the u5 snrnp along with u4-u6 snrnp preassemble into a single 25s particle that binds to the u1 and u2 snrnps and the substrate to form mature spliceosomes. (12 Dec 1998) |
| RNA, small nuclear | Short chains of RNA found in the nucleus. Their function is to remove the introns (nontranslated intervening sequences) from mRNA precursors, thereby bringing the two exons (coding segments) together into correct juxtaposition for enzymatic splicing at the correct point. The resulting mRNA is now ready to leave the nucleus. (12 Dec 1998) |
| mucosa of small intestine | The mucous coat of the small intestine. Synonym: tunica mucosa intestini tenuis. (05 Mar 2000) |
| muscular coat of small intestine | Muscular layer of the wall of the small intestine. Synonym: tunica muscularis intestini tenuis. (05 Mar 2000) |
| proximal small bowel disease | <radiology> Giardia, eosinophilic gastroenteritis, Zollinger-Ellison (12 Dec 1998) |
| serosa of small intestine | Serous coat of the small intestine; the peritoneal covering of the external surface of the small intestine. Synonym: tunica serosa intestini tenuis. (05 Mar 2000) |
| small | 1. Having little size, compared with other things of the same kind; little in quantity or degree; diminutive; not large or extended in dimension; not great; not much; inconsiderable; as, a small man; a small river. "To compare Great things with small." (Milton) 2. Being of slight consequence; feeble in influence or importance; unimportant; trivial; insignificant; as, a small fault; a small business. 3. Envincing little worth or ability; not large-minded; sometimes, in reproach, paltry; mean. "A true delineation of the smallest man is capable of interesting the reatest man." (Carlyle) 4. Not prolonged in duration; not extended in time; short; as, after a small space. 5. Weak; slender; fine; gentle; soft; not loud. "A still, small voice." Great and small,of all ranks or degrees; used especially of persons. "His quests, great and small." . Small arms, muskets, rifles, pistols, etc, in distinction from cannon. Small beer. See Beer. Small coal. Little coals of wood formerly used to light fires. Coal about the size of a hazelnut, separated from the coarser parts by screening. Small craft, various small textile articles, as tapes, braid, tringe, and the like. Origin: OE. Small, AS. Sm$l; akin to D. Smal narrow, OS. & OHG. Smal small, G. Schmal narrow, Dan. & Sw. Smal, Goth. Smals small, Icel. Smali smal cattle, sheep, or goats; cf. Gr. A sheep or goat. Source: Websters Dictionary (01 Mar 1998) |
| small-area analysis | A method of analyzing the variation in utilization of health care in small geographic or demographic areas. It often studies, for example, the usage rates for a given service or procedure in several small areas, documenting the variation among the areas. By comparing high- and low-use areas, the analysis attempts to determine whether there is a pattern to such use and to identify variables that are associated with and contribute to the variation. (12 Dec 1998) |
| small arteries | Unnamed muscular artery's, usually with fewer than six or seven layers of muscle. (05 Mar 2000) |
| small bowel dilatation | <radiology> Mnemonic: SOS, sprue, obstruction / ileus, scleroderma (collagen-vascular disease) normal width: less than 3 cm (12 Dec 1998) |
| small bowel disease | <radiology> Main feature, nodules, dilatation, thick folds distribution, localised, generalised, includes stomach, proximal, terminal ileum (TI), mesentery (12 Dec 1998) |