| p-cresol oxidoreductase | <enzyme> Catalyses hydroxylation of methyl group Registry number: EC 1.14.- Synonym: flavochrome p-cresol methylhydrolase (26 Jun 1999) |
|---|---|
| P-dextrocardiale | An electrocardiographic syndrome characteristic of overloading of the right atrium, often erroneously called P-pulmonale because the syndrome can result from any overloading of the right atrium (e.g., tricuspid stenosis) and independently of cor pulmonale. (05 Mar 2000) |
| p-dimethylaminoazobenzene | <chemical> N,n-dimethyl-4-(phenylazo)benzenamine. Reagent used primarily for the induction of experimental liver cancer. According to the fourth annual report on carcinogens (ntp 85-002, p. 89) published in 1985, this compound "may reasonably be anticipated to be a carcinogen." (merck, 11th ed) Pharmacological action: carcinogens, dyes. Chemical name: Benzenamine, N,N-dimethyl-4-(phenylazo)- (12 Dec 1998) |
| p-fluorophenylalanine | <chemical> 3-(p-fluorophenyl)-alanine. Chemical name: Phenylalanine, 4-fluoro- (12 Dec 1998) |
| p-glycoprotein | <cell biology, protein> A family of integral plasma membrane proteins which, when overexpressed, function as adenosine triphosphate-dependent efflux pumps, causing multidrug resistance. Mammalian p-glycoproteins are encoded by small mdr gene families. There are several isotypes in multiple species. See: multidrug transporter. (22 Sep 2002) |
| P-H conduction time | See: atrioventricular conduction. (05 Mar 2000) |
| p-hydroxyamphetamine | <chemical> Amphetamine metabolite with sympathomimetic effects. Pharmacological action: mydriatics, sympathomimetic. Chemical name: Phenol, 4-(2-aminopropyl)- (12 Dec 1998) |
| p-hydroxymercuribenzoate | An organic mercurial, HOHgC6H4COO-, formed spontaneously by hydrolysis of the p-chloro compound. See: p-mercuribenzoate. (05 Mar 2000) |
| p-hydroxynorephedrine | <chemical> Alpha-(1-aminoethyl)-p-hydroxybenzyl alcohol. Parahydroxy analog of phenylpropanolamine with properties as a sympathomimetic. Chemical name: Benzenemethanol, alpha-(1-aminoethyl)-4-hydroxy- (12 Dec 1998) |
| p-hydroxyphenylacetate | A minor side product of l-tyrosine degradation that is elevated in the urine in cases of neonatal tyrosinaemia and in Richner-Hanhart syndrome. (05 Mar 2000) |
| p-hydroxyphenyllactate | A metabolite in tyrosine degradation that is elevated in individuals with Richner-Hanhart syndrome. (05 Mar 2000) |
| p-hydroxyphenylpyruvate | A metabolite formed by the transamination of tyrosine; elevated in the urine of individuals with tyrosinaemia. (05 Mar 2000) |
| P-J interval | The time elapsing from the beginning of the P wave to the end of the QRS complex (J for junction between QRS and S-T segment) in the electrocardiogram. (05 Mar 2000) |
| P-K antibodies | IgE antibodies involved in the Prausnitz-Kustner reaction. (05 Mar 2000) |
| P-K test | A test for the presence of immediate hypersensitivity in humans; test serum from an atopic individual is injected intradermally into a normal subject; the normal subject is challenged 24-48 hours later with the antigen suspected of causing the immediate hypersensitivity reaction in the atopic individual. Synonym: P-K test. (05 Mar 2000) |