title: [Effect of small amounts of 2,4-dichlorophenoxyacetic acid derivatives on thiamine and riboflavin metabolism in the animal body].
abstract: Administration of the herbicide 2,4-DN (amine salt of 2,4-dichlorphenoxyacetic acid) to weanling rats in a dose of 1/20.000 and 1/2000 of the LD50 for 3 months brought about a 40-50% reduction of thiamine content in the organs and tissues of experimental animals as compared with control. The herbicide was introduced into a balanced formula diet. In the liver of rats given 2,4-DA, there was a 2-fold decrease in the content of flavine adeninedinucleotide, whereas the content of flavine mononucleotide showed a 2-fold rise. Besides, the rats given a lesser herbicide dose manifested a reduced excretion of riboflavine with urine, and an inhibition of liver succinate dehydrogenase. The same animals demonstrated an increase in the relative mass of the adrenals with a concurrent diminution in them of ascorbic acid content.
mesh_terms: D015084:2,4-Dichlorophenoxyacetic Acid / Q000008:administration & dosage*; D000311:Adrenal Glands / Q000378:metabolism; D000818:Animals; D001205:Ascorbic Acid / Q000378:metabolism; D001206:Ascorbic Acid Deficiency / Q000139:chemically induced; D004123:Dimethylamines / Q000008:administration & dosage*; D008099:Liver / Q000378:metabolism; D008297:Male; D051381:Rats; D012256:Riboflavin / Q000378:metabolism*; D013831:Thiamine / Q000378:metabolism*; D013832:Thiamine Deficiency / Q000139:chemically induced
chemical_list: D004123:Dimethylamines; C037991:2,4-D amine; D015084:2,4-Dichlorophenoxyacetic Acid; D001205:Ascorbic Acid; D012256:Riboflavin; D013831:Thiamine
vernacular_title: Vliianie malykh kolichestv proizvodnykh 2,4-dikhlorfenoksiuksusnoĭ kisloty na obmen tiamina i riboflavina v zhivotnom organizme.