| LAH | lactalbumin hydrolysate; left anterior hemiblock; left atrial hypertrophy; Licentiate of Apothecarie... |
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| MAFH | macroaggregated ferrous hydroxide |
| pOH | hydroxide ion concentration in a solution |
| TMAH | trimethylphenylammonium (anilinium) hydroxide |
| TMH | tetramethylammonium hydroxide |
| hydroxide | <chemistry> A hydrate; a substance containing hydrogen and oxygen, made by combining water with an oxide, and yielding water by elimination. The hydroxides are regarded as compounds of hydroxyl, united usually with basic element or radical; as, calcium hydroxide ethyl hydroxide. Origin: Hydro-, 2 + oxide. Source: Websters Dictionary (01 Mar 1998) |
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| sodium hydroxide | <chemical> A highly caustic substance that is used to neutralise acids and make sodium salts. Pharmacological action: caustics, pharmaceutic aid. Chemical name: Sodium hydroxide (Na(OH)) (12 Dec 1998) |
| ferric hydroxide | Hydrated iron oxide;a compound previously used, freshly prepared, as an antidote to arsenic poisoning. (05 Mar 2000) |
| lead hydroxide stain | <technique> A stain for electron microscopy; after aldehyde fixation, alkaline lead hydroxide preferentially stains RNA, but after OsO4 fixation, it reacts largely with osmium in tissues to give a general stain; in addition to binding to cytomembranes, it also stains carbohydrates (e.g., glycogen). (05 Mar 2000) |
| aluminum magnesium silicate | An antacid. Synonym: aluminum magnesium silicate. (05 Mar 2000) |
| calcium magnesium-atpase | <enzyme> An enzyme that catalyses the hydrolysis of ATP and is activated by millimolar concentrations of either calcium or magnesium. Unlike calcium-transporting atpase it does not require the second divalent cation for its activity, and is not sensitive to orthovanadate. Registry number: EC 3.6.1.- (12 Dec 1998) |
| calcium magnesium dependent endodeoxyribonuclease | <enzyme> Similar in action but different from dnase i Registry number: EC 3.1.21.- Synonym: ca mg dnase, ca(2+)+mg(2+) dnase, calcium-magnesium endonuclease, ca-mg endonuclease (26 Jun 1999) |
| magnesium | <chemical, element> An essential divalent cation. The major role is as the chelated ion in ATP and presumably other triphosphonucleotides. The magnesium ATP complex is the sole biologically active form of ATP. The other essential role of magnesium is as the central ion of chlorophyll. Cellular concentration is less than 5mM. Serum concentration approximately 1mM. Pharmacologic action: Hypomagnesemia can cause refractory ventricular fibrillation or ventricular tachycardia. Uses: known hypomagnesemic states - suspect hypomagnesmia in alcoholics, chronic disease states, or others with poor nutrition; treatment of choice for Torsade de Pointes. Dose: 1-2 grams IV push for cardiac arrest, over 1 to 2 minutes for Torsades, and over 5 to 60 minutes for acute myocardial infarction. Potential complications: Transient flushing and diaphoresis, sinus bradycardia, hypotension, hyporeflexia and paralysis with overdose. Abbreviation: Mg (15 Mar 2000) |
| magnesium aluminum silicate | An antacid. Synonym: aluminum magnesium silicate. (05 Mar 2000) |
| magnesium bacteriopheophytinate | <microbiology, plant biology> Varieties of chlorophyll (bacteriochlorophylls a, b, c, d, e and g) found in photosynthetic bacteria and differing from plant chlorophyll in the substituents around the tetrapyrrole nucleus of the molecule and in the absorption spectra. (18 Nov 1997) |
| magnesium benzoate | Has been used in gout and rheumatoid arthritis. (05 Mar 2000) |
| magnesium-bicarbonate ATPase | <enzyme> Aspect of EC 3.6.1.3 Registry number: EC 3.6.1.- Synonym: mg-hco3-atpase, atpase, magnesium-bicarbonate (26 Jun 1999) |
| magnesium carbonate | Used in gastric and intestinal acidity and as a laxative. (05 Mar 2000) |
| magnesium chelatase | <enzyme> Catalyses the first committed step in chlorophyll biosynthesis by adding magnesium to protoporphyrin ix Registry number: EC 4.99.1- Synonym: mg-chelatase, magnesium-protoporphyrin chelatase (26 Jun 1999) |
| magnesium chloride | <chemical> Magnesium chloride. An inorganic compound consisting of one magnesium and two chloride ions. The compound is used in medicine as a source of magnesium ions, which are essential for many cellular activities. It has also been used as a cathartic and in alloys. Chemical name: Magnesium chloride (MgCl2) (12 Dec 1998) |