dihydrofolate reductase inhibitors

dihydrofolate reductase inhibitors

Drugs that block the action of DIHYDROFOLATE REDUCTASE. Some of the drugs that inhibit this enzyme can, as in the case of METHOTREXATE, be used as anticancer drugs. Some of them have little effect on the human enzyme but a strong effect on the dihydrofolate reductases of bacterial and other parasites. Trimetrexate (Neutrexin) is a case in point; it is active against Pneumocystis carinii .
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
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References in periodicals archive ?
Hartman et al., "Novel dihydrofolate reductase inhibitors. Structure-based versus diversity-based library design and high-throughput synthesis and screening," Journal of Medicinal Chemistry, vol.
Significance and biological importance of pyrimidine in the microbial world
One group (dihydrofolate reductase inhibitors) prevents folate from being converted into its active metabolites and includes trimethoprim (antibiotic), sulfasalazine (for ulcerative colitis) and methotrexate (chemotherapeutic).
Drugs that block folic acid in pregnancy double birth defects risk
Evolution of the bacterial dihydrofolate reductase inhibitors. J Antimicrob Chemother 1995;36:887-90.
Dead bugs don't mutate: susceptibility issues in the emergence of bacterial resistance. (Perspectives)
One group of such agents is dihydrofolate reductase inhibitors, which block the conversion of folate to its more active metabolites.
Folic Acid Antagonists Raise the Risk of a Variety of Birth Defects
Methods: We assessed exposure to folic acid antagonists that act as dihydrofolate reductase inhibitors and to certain antiepileptic drugs in 3,870 infants with cardiovascular defects, 1,962 infants with oral clefts, and 1,100 infants with urinary tract defects, and also in 8,387 control infants with malformations, the risk of which is not reduced after vitamin supplementation.
Folic Acid Antagonists during Pregnancy and the Risk of Birth Defects

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