| sucrose | Nonreducing disaccharide, _ D glucopyranosyl _ D fructofuranose. (18 Nov 1997) |
|---|---|
| sucrose alpha-d-glucohydrolase | <enzyme> An enzyme hydrolyzing sucrose and maltose; in a complex with isomaltase; hence, hydrolyzes both sucrose and isomaltose; found in the intestinal mucosa; a deficiency of this enzyme results in defective digestion of sucrose and linear a1,4-glucans. Synonym: sucrase. (05 Mar 2000) |
| sucrose - fructan 6-fructosyltransferase | <enzyme> Catalyses the formation and extension of beta-2,6-linked fructans, typical of grasses; from barley, hordeum vulgare; genbank x83233 Registry number: EC 2.4.1.- Synonym: barley 6-sft (26 Jun 1999) |
| sucrose haemolysis test | Isotonic sucrose promotes binding of complement to red blood cells; in paroxysmal nocturnal haemoglobinuria a proportion of the cells is sensitive to complement-mediated lysis, and haemolysis ensues. (05 Mar 2000) |
| sucrose permease | <chemical> Sucrose-utilizing enzyme Chemical name: permease, sucrose (26 Jun 1999) |
| sucrose-phosphate synthase phosphatase | <enzyme> A type 2a phosphoprotein phosphatase Registry number: EC 3.1.3.- Synonym: sps-phosphatase (26 Jun 1999) |
| sucrose synthase | <enzyme> Sus1 gene product isolated from maise Registry number: EC 2.4.1.13 Synonym: sucrose synthetase, udp-glucose-d-fructose-2-glycosyltransferase, suc synthase 1, suc synthase1, sus1 gene product (26 Jun 1999) |
| dietary sucrose | Sucrose present in the diet. It is added to food and drinks as a sweetener. (12 Dec 1998) |
| alveolar dead space | The difference between physiologic dead space and anatomical dead space; it represents that part of the physiologic dead space resulting from ventilation of relatively underperfused or nonperfused alveoli; it differs specifically in being placed so as to fill and empty in parallel with functional alveoli, rather than being interposed in the conducting tubes between functional alveoli and the external environment. (05 Mar 2000) |
| anatomical dead space | The volume of the conducting airways from the external environment (at the nose and mouth) down to the level at which inspired gas exchanges oxygen and carbon dioxide with pulmonary capillary blood; formerly presumed to extend down to the beginning of alveolar epithelium in the respiratory bronchioles, but more recent evidence indicates that effective gas exchange extends some distance up the thicker-walled conducting airways because of rapid longitudinal mixing. Compare: alveolar dead space, physiologic dead space. Synonym: anatomical airway. (05 Mar 2000) |
| antecubital space | The fossa in front of the elbow, bounded laterally and medially by the humeral origins of the extensors and flexors of the forearm, respectively, and superiorly by an imaginary line connecting the humeral condyles. Synonym: fossa cubitalis, antecubital space, chelidon, triangle of elbow. (05 Mar 2000) |
| anterior clear space | On lateral chest radiographs, the region dorsal to the sternum and ventral to the ascending aorta. Synonym: anterior clear space. (05 Mar 2000) |
| apical space | The space between the alveolar wall and the apex of the root of a tooth where an alveolar abscess usually has its origin. (05 Mar 2000) |
| axillary space | <anatomy> The underarm area. (16 Dec 1997) |
| Berger's space | The space between the patellar fossa of the vitreous and the lens. (05 Mar 2000) |