[Effect of vitamin A on the endogenous synthesis and system of N-nitrosodimethylamine detoxication in the rat liver]. 1987

A A Pentiuk, and V M Mikhaĭlenko, and B L Rubenchik, and N B Lutsiuk, and R Khadur

The administration of N-nitrosodimethylamine (NDMA) and its endogenic synthesis from amidopyrine and sodium nitrite decreases in the liver the level of reduced glutathione, ascorbic acid, glutathione reductase and glutathione-S-transferase activities, the accumulation of oxidized glutathione as well as the damage of DNA. The gamma-glutamyltransferase activity, the marker of carcinogenesis, increased. The damaging action of NDMA under the influence of vitamin A deficiency increased, but the vitamin excess decreased the biochemical changes in the liver.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008297 Male Males
D008658 Inactivation, Metabolic Reduction of pharmacologic activity or toxicity of a drug or other foreign substance by a living system, usually by enzymatic action. It includes those metabolic transformations that make the substance more soluble for faster renal excretion. Detoxication, Drug, Metabolic,Drug Detoxication, Metabolic,Metabolic Detoxication, Drug,Detoxification, Drug, Metabolic,Metabolic Detoxification, Drug,Metabolic Drug Inactivation,Detoxication, Drug Metabolic,Detoxication, Metabolic Drug,Detoxification, Drug Metabolic,Drug Inactivation, Metabolic,Drug Metabolic Detoxication,Drug Metabolic Detoxification,Inactivation, Metabolic Drug,Metabolic Drug Detoxication,Metabolic Inactivation
D004128 Dimethylnitrosamine A nitrosamine derivative with alkylating, carcinogenic, and mutagenic properties. It causes serious liver damage and is a hepatocarcinogen in rodents. Nitrosodimethylamine,N-Nitrosodimethylamine,NDMA Nitrosodimethylamine,N Nitrosodimethylamine,Nitrosodimethylamine, NDMA
D004249 DNA Damage Injuries to DNA that introduce deviations from its normal, intact structure and which may, if left unrepaired, result in a MUTATION or a block of DNA REPLICATION. These deviations may be caused by physical or chemical agents and occur by natural or unnatural, introduced circumstances. They include the introduction of illegitimate bases during replication or by deamination or other modification of bases; the loss of a base from the DNA backbone leaving an abasic site; single-strand breaks; double strand breaks; and intrastrand (PYRIMIDINE DIMERS) or interstrand crosslinking. Damage can often be repaired (DNA REPAIR). If the damage is extensive, it can induce APOPTOSIS. DNA Injury,DNA Lesion,DNA Lesions,Genotoxic Stress,Stress, Genotoxic,Injury, DNA,DNA Injuries
D004277 DNA, Single-Stranded A single chain of deoxyribonucleotides that occurs in some bacteria and viruses. It usually exists as a covalently closed circle. Single-Stranded DNA,DNA, Single Stranded,Single Stranded DNA
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014801 Vitamin A Retinol and derivatives of retinol that play an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response. Dietary vitamin A is derived from a variety of CAROTENOIDS found in plants. It is enriched in the liver, egg yolks, and the fat component of dairy products. Retinol,11-cis-Retinol,3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraen-1-ol, (all-E)-Isomer,All-Trans-Retinol,Aquasol A,Vitamin A1,All Trans Retinol
D014802 Vitamin A Deficiency A nutritional condition produced by a deficiency of VITAMIN A in the diet, characterized by NIGHT BLINDNESS and other ocular manifestations such as dryness of the conjunctiva and later of the cornea (XEROPHTHALMIA). Vitamin A deficiency is a very common problem worldwide, particularly in developing countries as a consequence of famine or shortages of vitamin A-rich foods. In the United States it is found among the urban poor, the elderly, alcoholics, and patients with malabsorption. (From Cecil Textbook of Medicine, 19th ed, p1179) Deficiency, Vitamin A,Deficiencies, Vitamin A,Vitamin A Deficiencies
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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