| carminic acid | A glucoside of an anthracenequinone carboxylic acid; the essential constituent of carmine. (05 Mar 2000) |
|---|---|
| vaccenic acid | CH3(CH2)5CH==CH(CH2)9COOH; n-trans-11-octadecenoic acid;an unsaturated fatty acid of which both cis and trans isomers are found in butter and other animal fats. (05 Mar 2000) |
| G acid | 2-Naphthol-6,8-disulfonic acid. (05 Mar 2000) |
| gadoleic acid | An unsaturated fatty acid from cod liver oil and other sources. Synonym: 9-eicosenoic acid. (05 Mar 2000) |
| gallic acid | <chemical> Chemical name: Benzoic acid, 3,4,5-trihydroxy- (12 Dec 1998) |
| valeric acid | CH3(CH2)3COOH;normal aliphatic acid; distilled from valerian; some of its salts are used in medicine; found in human colon. Synonym: pentanoic acid. (05 Mar 2000) |
| valproic acid | This drug is used to treat seizures. It may cause liver damage and has side effects such as drowsiness, nausea, and hair loss. (09 Oct 1997) |
| gamma-linolenic acid | <chemical> (z,z,z)-6,9,12-octadecatrienoic acid. An omega-6 fatty acid produced in the body as the delta 6-desaturase metabolite of linoleic acid. It is converted to dihomo-gamma-linolenic acid, a biosynthetic precursor of monoenoic prostaglandins such as pge1. Chemical name: 6,9,12-Octadecatrienoic acid, (Z,Z,Z)- (12 Dec 1998) |
| vanadic acid | An acid, H3VO4, derived from vanadium, forming salts with various bases. (05 Mar 2000) |
| vanillic acid | <chemical> A flavoring agent. It is the intermediate product in the two-step bioconversion of ferulic acid to vanillin. Chemical name: Benzoic acid, 4-hydroxy-3-methoxy- (12 Dec 1998) |
| vanillylmandelic acid | Misnomer for 4-hydroxy-3-methoxymandelic acid (a,3-dihydroxy-2-methoxybenzeneacetic acid);the major urinary metabolite of adrenal and sympathetic catecholamines (e.g., from both epinephrine and norepinephrine); elevated in most patients with pheochromocytoma. Acronym: VMA (05 Mar 2000) |
| vanillylmandelic acid test | A test for catecholamine-secreting tumours (pheochromocytoma and neuroblastoma) performed on a 24-hr urine specimen; it is based on the fact that vanillylmandelic acid is the major urinary metabolite of norepinephrine and epinephrine. Synonym: 3-methoxy-4-hydroxymandelic acid test, VMA test. (05 Mar 2000) |
| vanilmandelic acid | <chemical> Chemical name: Benzeneacetic acid, alpha,4-dihydroxy-3-methoxy- (12 Dec 1998) |
| Palmer acid test for peptic ulcer | In duodenal ulcer, the administration of acid by duodenal tube causes severe pain. (05 Mar 2000) |
| palmitic acid | <biochemistry> One of the most widely distributed of fatty acids. The palmitoyl residue is one of the common acyl residues of membrane phospholipids. It is also found as a thioester attached to cystein residues on some membrane proteins. The proteins so modified are often transmembrane proteins and the modified residue is on the cytoplasmic surface of the membrane. The specificity of the transferase for the acyl residue is not high and both stearoyl and oleoyl residues can replace the palmitoyl residue. Compare: myristoylation. (18 Nov 1997) |