- 翻译公司资讯
-
世联翻译公司完成医药专业领域英文翻译
发布时间：2018-02-03 21:22 点击：
世联翻译公司完成医药专业领域英文翻译
Exp Mol Pathol. 1990 Feb;52(1):98-108.Ultrastructural effects of Nifurtimox on rat adrenal cortex related to reductive biotransformation.de Castro CR, De Toranzo EG, Carbone M, Castro JA.SourceCentro de Investigaciones Toxicológicas (CEITOX) CITEFA/CONICET, Provincia de Buenos Aires, Argentina.AbstractNifurtimox (Nfx) (4(5-nitrofurfurylidene)amino)-3-methylthiomorpholine-1, 1-dioxide) is a drug used against Chagas' disease, a parasitic sickness afflicting several million Latin Americans. Nfx administration to Sprague-Dawley male rats (220-250 g) at a dose of 100 mg/kg caused pronounced alterations in the adrenal cortex involving the fasciculata and reticularis zones but which were not evident in the glomerulosa. Alterations observed involved mitochondria, nuclei, Golgi apparatus, and the endoplasmic reticulum but were more intense in the mitochondria. There is Nfx nitroreductase activity in the adrenal microsomal, mitochondrial, and cytosolic-rich fractions but most of it is in the mitochondrial-rich fraction. Activity in the first two fractions requires NADPH and that in the cytosol is only observed in the presence of hypoxanthine as substrate. Enzymatic activity in all fractions is inhibited by oxygen. CO does not inhibit mitochondrial Nfx nitroreductase and inhibits only 10% of the microsomal enzyme activity. Hypoxanthine-dependent cytosolic activity is inhibited by allopurinol. Present results suggest that Nfx is activated to damage-producing reactive metabolites by nitroreductive biotransformation in rat adrenal organelles. Mitochondrial and microsomal bioactivation would occur at the level of the flavoenzyme P-450 reductase rather than at P-450 itself, and cytosolic bioactivation would be mediated by xanthine oxidase. Epidemiological studies on adrenal function in patients undergoing Nfx treatment would be necessary to establish the potential toxicological relevance of these findings.PMID: 2106446 [PubMed - indexed for MEDLINE]Unitrans世联翻译公司在您身边,离您近的翻译公司,心贴心的专业服务,专业的全球语言翻译与信息解决方案供应商,专业翻译机构品牌。无论在本地,国内还是海外,我们的专业、星级体贴服务，为您的事业加速！世联翻译公司在北京、上海、深圳等国际交往城市设有翻译基地，业务覆盖全国城市。每天有近百万字节的信息和贸易通过世联走向全球！积累了大量政商用户数据，翻译人才库数据，多语种语料库大数据。世联品牌和服务品质已得到政务防务和国际组织、跨国公司和大中型企业等近万用户的认可。 专业翻译公司,北京翻译公司,上海翻译公司,英文翻译,日文翻译,韩语翻译,翻译公司排行榜,翻译公司收费价格表,翻译公司收费标准,翻译公司北京,翻译公司上海。