| APNH | antiporter sodium-hydrogen ion |
|---|---|
| BAHS | butoctamide hydrogen succinate |
| BHT | beta-hydroxytheophylline; breath hydrogen test; butylated hydroxytoluene |
| cH+ | hydrogen ion concentration |
| CHN | carbon, hydrogen, and nitrogen; child neurology; Chinese [hamster]; community health network; commun... |
| sodium-hydrogen antiporter | A plasma membrane exchange glycoprotein transporter that functions in intracellular pH regulation, cell volume regulation, and cellular response to many different hormones and mitogens. (12 Dec 1998) |
|---|---|
| sodium hydrogen carbonate | <chemical> Carbonic acid monosodium salt (CHNaO3). A white, crystalline powder that is used as an electrolyte replenisher and systemic alkaliser. It is applied topically in solution to wash the nose, mouth, or vagina, and as a cleansing enema. Pharmacologic action: Acid neutralization. Uses: Preexisting metabolic acidosis, hyperkalemia, tricyclic or phenobarbital overdose. Dose in mEq: 0.3 * (base deficit) * (wt in kg). Potential complications: Metabolic alkalosis, hypercarbia, hyperosmolar state. Note: Since HCO3- does not cross cell membranes and CO2 does, the administration of bicarbonate may actually make tissues more acidotic. Chemical name: Carbonic acid monosodium salt. (12 Mar 2000) |
| sodium hydrogen sulfite | NaHSO3;acid sodium sulfite, used in gastric and intestinal fermentation, externally in the treatment of parasitic diseases, and as an antioxidant in certain injections (s. Metabisulfite). Synonym: sodium hydrogen sulfite, sodium pyrosulfite. (05 Mar 2000) |
| sulfureted hydrogen | <chemical> Hydrogen sulfide (h2s). A flammable, poisonous gas with a characteristic odour of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. Chemical name: Hydrogen sulfide (H2S) (12 Dec 1998) |
| interspecies hydrogen transfer | <biology, ecology> The process in which organic matter is degraded anaerobically by the interaction of several groups of microorganisms in which hydrogen production and hydrogen consumption are closely coupled among species. (09 Oct 1997) |
| 3-chloro-D-alanine hydrogen chloride-lyase | <enzyme> Pseudomonas putida enzyme; forms cysteine from 3-chloro-d-alanine and hydrogen sulfide Registry number: EC 4.5.- Synonym: cahc-lyase, 3-chloro-d-alanine chloride-lyase (deaminating) (26 Jun 1999) |
| formate hydrogen lyase | <enzyme> Consists of EC 1.2.1.2, formate dehydrogenase, plus EC 1.12.1.2, hydrogen dehydrogenase Registry number: EC 1.- Synonym: formate dehydrogenase h, fdhh gene product, fdhf gene product, hyc gene product (26 Jun 1999) |
| acetaldehyde dehydrogenase | <enzyme> Works with both nad and nadp Registry number: EC 1.2.1.5 Synonym: aldehyde dehydrogenase (NADP+), naho gene product (26 Jun 1999) |
| acetoin dehydrogenase | <enzyme> An enzyme that catalyses the conversion of acetoin to diacetyl in the presence of NAD. Chemical name: Acetoin:NAD+ oxidoreductase Registry number: EC 1.1.1.5 (12 Dec 1998) |
| acetol dehydrogenase | <enzyme> Forms methylglyoxal; uses nad+ Registry number: EC 1.1.1.- Synonym: 1-hydroxyacetone dehydrogenase (26 Jun 1999) |
| acyl-ACP dehydrogenase | enoyl-ACP reductase (NADPH) |
| acyl-CoA dehydrogenase | <enzyme> See also records for specific fatty acyl groups which have full EC nomenclature number; electron-transferring flavoprotein system reducing ubiquinone and other acceptors; formerly EC 1.3.2.2 Registry number: EC 1.3.99.3 Synonym: fatty-acyl CoA dehydrogenase, palmitoyl-CoA dehydrogenase, short-chain acyl-CoA dehydrogenase, acyl-coenzyme a dehydrogenase, lauroyl-CoA oxidase (26 Jun 1999) |
| acyl-CoA dehydrogenase (NADPH+) | Enzyme catalyzing the reversible reduction of enoyl-CoA derivatives of chain length 4 to 16, with NADPH as the hydrogen donor, forming acyl-CoA and NADP+. Synonym: enoyl-CoA reductase. (05 Mar 2000) |
| alanopine dehydrogenase | <enzyme> Catalyses reductive elimination between pyruvate and alanine, or glycine, utilizing NADH as coenzyme, producing 2,2'-iminodipropionic acid (alanopine) Registry number: EC 1.5.1.- (26 Jun 1999) |
| alcohol dehydrogenase | <enzyme> An enzyme that catalyses reversibly the final step of alcoholic fermentation by reducing an aldehyde to an alcohol. In the case of ethanol, acetaldehyde is reduced to ethanol in the presence of NADH and hydrogen. The enzyme is a zinc protein which acts on primary and secondary alcohols or hemiacetals. Chemical name: Alcohol:NAD+ oxidoreductase Registry number: EC 1.1.1.1 (12 Dec 1998) |