* Ascorbic acid inhibits ferric nitrilotriacetate induction of ornithine decarboxylase, DNA synthesis, oxidative stress, and hepatotoxicity in rats.
- Ascorbic acid (AA) is a naturally occurring phenolic compound with antioxidant properties used in food, cosmetics, and pharmaceutical products. In this study, the effect of AA on ferric nitrilotriacetate (Fe-NTA)-induced hepatotoxicity in rats has been examined. Fe-NTA alone enhances ornithine decarboxylase activity to 4.5-fold and tritiated thymidine incorporation in DNA to 3.6-fold in livers compared with the corresponding saline-treated controls. The enhanced ornithine decarboxylase activity and DNA synthesis showed a reduction to 3.02- and 1.88-fold, respectively, at a higher dose of 2 mg AA per day per animal, compared with the Fe-NTA-treated groups. Fe-NTA treatment also enhanced the hepatic microsomal lipid peroxidation to 1.7-fold compared to saline-treated controls. These changes were reversed significantly in animals receiving pretreatment of AA. The present data shows that AA can reciprocate the toxic effects of Fe-NTA and can serve as a potent chemopreventive agent to suppress oxidant-induced tissue injury and hepatotoxicity in rats.
=>1.酸っぱい, 2.辛辣な, 3.酸, 4.《俗語》麻薬, LSD
Overview of noun acid
The noun acid has 2 senses (first 1 from tagged texts)
1. (4) acid -- (any of various water-soluble compounds having a sour taste and capable of turning
litmus red and reacting with a base to form a salt)
2. acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds,
pane, superman, window pane, Zen -- (street name for lysergic acid diethylamide)
Overview of adj acid
The adj acid has 3 senses (first 1 from tagged texts)
1. (1) acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent,
vitriolic -- (harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a
barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering
criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a
sulfurous denunciation"; "a vitriolic critique")
2. acidic, acid, acidulent, acidulous -- (being sour to the taste)
3. acid -- (having the characteristics of an acid; "an acid reaction")
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