title: Effects of nitrous oxide and methotrexate administration on hepatic methionine synthetase and dihydrofolate reductase activities, hepatic folates, and formate oxidation in rats.
mesh_terms: D013766:5-Methyltetrahydrofolate-Homocysteine S-Methyltransferase / Q000378:metabolism*; D000818:Animals; D005492:Folic Acid / Q000378:metabolism*; D005561:Formates / Q000378:metabolism*; D007700:Kinetics; D008099:Liver / Q000187:drug effects / Q000378:metabolism*; D008297:Male; D008727:Methotrexate / Q000494:pharmacology*; D008780:Methyltransferases / Q000378:metabolism*; D009609:Nitrous Oxide / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains; D013762:Tetrahydrofolate Dehydrogenase / Q000378:metabolism*
chemical_list: D005561:Formates; C030544:formic acid; D005492:Folic Acid; D013762:Tetrahydrofolate Dehydrogenase; D008780:Methyltransferases; D013766:5-Methyltetrahydrofolate-Homocysteine S-Methyltransferase; D009609:Nitrous Oxide; D008727:Methotrexate