| sialate O-acetylesterase | <enzyme> Rat liver cytosol non-glycosylated enzyme has an active-site serine; rat liver membrane associated glycosylated enzyme is specific for 9-o-acetylated sialic acids Registry number: EC 3.1.1.53 Synonym: neuraminate-o-acetylesterase, influenza c virus receptor destroying enzyme, 9-o-acetylsialic acid esterase (26 Jun 1999) |
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| sialectasis | Dilation of a salivary duct. Synonym: ptyalectasis. Origin: sial-+ G. Ektasis, a stretching (05 Mar 2000) |
| sialemesis | Vomiting of saliva, or vomiting caused by or accompanying an excessive secretion of saliva. Origin: sial-+ G. Emesis, vomiting (05 Mar 2000) |
| sialic | <physiology> Of or pertaining to saliva; producing or carrying saliva; as, the salivary ferment; the salivary glands; the salivary ducts, etc. Origin: L. Salivarius slimy, clammy: cf. F. Salivaire. Source: Websters Dictionary (01 Mar 1998) |
| sialic acid | <chemical> Sometimes known as sialic acid, but strictly one of a family of sialic acids (which includes also N glycolyl neuraminic acid and O substituted derivatives). It is a 9 carbon sugar formed by adding to mannose three carbons from pyruvate. Occurs in the subset of glycolipids known as gangliosides and in glycoproteins. The presence of its carboxyl group on glycolipids and glycoproteins is responsible for much of the negative charge on animal cell surfaces. (04 Jul 1999) |
| sialic acid O-acetyltransferase | <enzyme> Responsible for 9(7)-o-acetylation of sialic residues Registry number: EC 2.3.1.- Synonym: sia o-acetyltransferase (26 Jun 1999) |
| sialic acid permease | <chemical> Synonym: sialic acid transporter (26 Jun 1999) |
| sialic acids | A group of naturally occurring n-and o-acyl derivatives of the deoxyamino sugar neuraminic acid. They are ubiquitously distributed in many tissues. (12 Dec 1998) |
| sialidase | <enzyme> Enzyme catalysing cleavage of neuraminic acid residues from oligosaccharide chains of glycoproteins and glycolipids. Since these residues are usually terminal, neuraminidases are generally exo enzymes, although an endoneuraminidase is known. For use as a laboratory reagent, common sources are from bacteria such as Vibrio or Clostridium. A neuraminidase is one of the transmembrane proteins of the envelope of influenza virus. (04 Jul 1999) |
| sialidosis | <syndrome> A neuronal storage disorder in children characterised by a cherry red spot at the macula, progressive myoclonus, and easily controlled seizures; the result of sialidase deficiency. Type 1 is characterised by normal body habitus, cherry red macula, myoclonus, and normal beta-galactosidase levels; type 2 by short stature, bony abnormalities, and deficient beta-galactosidase. Synonym: sialidosis. (05 Mar 2000) |
| sialine | <physiology> Of or pertaining to saliva; producing or carrying saliva; as, the salivary ferment; the salivary glands; the salivary ducts, etc. Origin: L. Salivarius slimy, clammy: cf. F. Salivaire. Source: Websters Dictionary (01 Mar 1998) |
| sialism | Sialismus An excess secretion of saliva. Synonym: hygrostomia, ptyalism, salivation, sialorrhoea, sialosis. Origin: G. Sialismos (05 Mar 2000) |
| sialo- | Sial- Saliva, salivary glands. See: ptyal-. Compare: ptyal-. Origin: G. Sialon (05 Mar 2000) |
| sialoadenectomy | Excision of a salivary gland. Origin: sialo-+ G. Aden, gland, + ektome, excision (05 Mar 2000) |
| sialoadenitis | Inflammation of a salivary gland. Synonym: sialoadenitis. Origin: sial-+ G. Aden, gland, + -itis, inflammation (05 Mar 2000) |