| methylnitronitrosoguanidine | <chemical> 1-methyl-3-nitro-1-nitrosoguanidine. A nitrosoguanidine derivative with potent mutagenic and carcinogenic properties. Pharmacological action: carcinogens, mutagens. Chemical name: Guanidine, N-methyl-N'-nitro-N-nitroso- (12 Dec 1998) |
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| methylnitrosourea | <chemical> 1-methyl-1-nitrosourea. A nitrosourea compound with alkylating, carcinogenic, and mutagenic properties. Pharmacological action: alkylating agents, carcinogens, mutagens. Chemical name: Urea, N-methyl-N-nitroso- (12 Dec 1998) |
| methylococcaceae | A family of gram-negative, aerobic bacteria utilizing only one-carbon organic compounds. (12 Dec 1998) |
| methylol | Hydroxymethyl; the radical, -CH2OH. (05 Mar 2000) |
| methylol riboflavin | A mixture of methylol derivatives of riboflavin formed by the action of formaldehyde on riboflavin in weakly alkaline solution; it has the same action as riboflavin, but is preferred for parenteral administration. (05 Mar 2000) |
| methylose | A sugar in which the carbon atom farthest from the carbonyl group is a methyl (CH3). (05 Mar 2000) |
| methylotroph | Yeasts, like Hansenula polymorpha, that utilise methanol as an energy source. (18 Nov 1997) |
| methylparaben | Methylp-hydroxybenzoate;an antifungal preservative. Synonym: methyl hydroxybenzoate. (05 Mar 2000) |
| methylpentose | A hexose (a 6-deoxyhexose) in which carbon-6 is part of a methyl group; e.g., rhamnose, fucose. (05 Mar 2000) |
| methylphenazonium methosulfate | <chemical> 5-methylphenazinium methosulfate. Used as an electron carrier in place of the flavine enzyme of warburg in the hexosemonophosphate system and also in the preparation of succinic dehydrogenase. Chemical name: Phenazinium, 5-methyl-, methyl sulfate (12 Dec 1998) |
| methylphenidate | This central nervous system stimulant drug is used to attention-deficit hyperactivity disorder (ADHD) in children and adolescents. (09 Oct 1997) |
| methylphenidate hydrochloride | Methyl alpha-phenyl-2-piperidineacetate hydrochloride;a central nervous system stimulant used to produce mild cortical stimulation in various types of depressions; commonly used in the treatment of hyperkinetic or hyperactive (attention deficit disorder) children. (05 Mar 2000) |
| methylphosphotriester methyltransferase | <enzyme> Acts as DNA repair mechanism to remove methyl groups introduced into the DNA molecule by alkylating agents Registry number: EC 2.1.1.- Synonym: mpester methyltransferase, methylphosphotriester DNA methyltransferase, alkylphosphotriester DNA alkyl transferase (26 Jun 1999) |
| methylprednisolone | <chemical> (6 alpha,11 beta)-11,17,21-trihydroxy-6-methylpregna-1,4-diene-3,2-dione. A prednisolone derivative which has pharmacological actions similar to prednisolone. Pharmacological action: steroidal anti-inflammatory agents, antiemetics, glucocorticoids, synthetic, glucocorticoids, topical, neuroprotective agents. Chemical name: Pregna-1,4-diene-3,20-dione, 11,17,21-trihydroxy-6-methyl-, (6alpha,11beta)- (12 Dec 1998) |
| methylprednisolone acetate | 6-methylprednisolone 21 acetate;has the same actions and uses as methylprednisolone; aqueous suspensions are suitable for intrasynovial and soft tissue injection. (05 Mar 2000) |