| ¿µ¹® | purine | ÇÑ±Û | Ç»¸° |
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| TA | alkaline tuberculin; arterial tension; axillary temperature; tactile afferent; Takayasu arteritis; t... |
|---|---|
| PNP | pancreatic polypeptide; para-nitrophenol; peak negative pressure; pediatric nurse practitioner; peri... |
| Pu | plutonium; purine; purple |
| PA | Pyrrolizidine alkaloids |
|---|---|
| BAP | 6-(benzylamino)purine |
| 6DMAP | 6-dimethyl amino purine |
| PNP | Purine nucleoside phosphorylase |
| PurR | Purine repressor |
| purine | <biochemistry, molecular biology> A heterocyclic compound with a fused pyrimidine/imidazole ring. Planar and aromatic in character. The parent compound for the purine bases of nucleic acids. (18 Nov 1997) |
|---|---|
| purine 5'-nucleotidase | <enzyme> Associated with some immunologic deficiency diseases Registry number: EC 3.1.3.- (26 Jun 1999) |
| purine base | A purine. (05 Mar 2000) |
| purine-free diet | A diet containing a minimal quantity of purine bases (meats); liver, kidney, and sweetbread especially are excluded and replaced by dairy products, fruits, and cereals; alcoholic beverages also are excluded. Synonym: purine-free diet. (05 Mar 2000) |
| purine imidazole-ring cyclase | <enzyme> Recyclises ring-opened purine formamidopyrimidines in irradiated DNA, restoring the c-8 to n-9 band, does not require ATP Registry number: EC 6.3.3.- Synonym: purir cyclase (26 Jun 1999) |
| purine-nucleoside phosphorylase | <enzyme> An enzyme that catalyses the reaction between a purine nucleoside and orthophosphate to form a free purine plus ribose-5-phosphate. Chemical name: Purine-nucleoside:orthophosphate ribosyltransferase Registry number: EC 2.4.2.1 (12 Dec 1998) |
| purine permease | <chemical> Enzyme in transport system of purines in yeast pichia guillermondii Chemical name: permease, purine (26 Jun 1999) |
| purine phosphoribosyltransferase | <enzyme> Specific purine phosphoribosyltransferases are EC 2.4.2.7 and 2.4.2.8. Registry number: EC 2.4.2.- (26 Jun 1999) |
| purine-restricted diet | See: gout diet. (05 Mar 2000) |
| purine ribonucleoside | A toxic nucleoside isolated from the mushroom Agaricus nebularis and from Streptomyces sp. Synonym: 9-beta-ribofuranosylpurine, purine ribonucleoside, ribosylpurine. (05 Mar 2000) |
| low purine diet | A diet low in precursors of purines (such as tissues rich in cells with abundant nuclei, as in liver, glandular meats, etc.) to minimise formation of uric acid. Useful in treatment of patients with gout or urate-containing renal calculi. (05 Mar 2000) |
| alkaloids | Organic nitrogenous bases. Many alkaloids of medical importance occur in the animal and vegetable kingdoms, and some have been synthesised. (12 Dec 1998) |
| belladonna alkaloids | Alkaloids obtained from various plants, especially the deadly nightshade (atropa belladonna), variety acuminata; atropine, hyoscyamine and scopolamine are classical, specific antimuscarinic agents with many pharmacologic actions; used mainly as antispasmodics. (12 Dec 1998) |
| bisbenzylisoquinoline alkaloids | A group of alkaloids whose base structure is two fused isoquinoline rings e.g., curare alkaloids. (05 Mar 2000) |
| rauwolfia alkaloids | <chemical> Alkaloids from rauwolfia serpentina benth and other species. The prototype is reserpine, which is a depleter of catecholamines and serotonin from the sympathetic postganglionic fibres and brain areas. They have been used in hypertension and psychoses despite their wide range of potentially adverse effects. Pharmacological action: adrenergic uptake inhibitors, antihypertensive agents, antipsychotic agents, sympatholytics. (12 Dec 1998) |
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