Mutagenic and carcinogenic actions of chromium and its compounds.
نویسندگان
چکیده
Numerous experimental observations have been made on microorganisms and culture of the cells of mammals as well as the accounting of the chromosomal aberrations in the bone marrow cells of the mammals and of human cells displayed that the chromium and its compounds possess a pronounced mutagenic effect. Translocation test, induction record of DNA damage and repair systems in the mammalian and human cells with greater precision proves the presence of the mutagenic effect of the chromium and its compounds, which in turn is dependent on dose and time of this metal intoxication. Chromium and its compounds have pronounced mutagenic effect, on increased admission to organism of mammals and protozoa.
منابع مشابه
Reductive activation with cysteine represents a chromium(III)-dependent pathway in the induction of genotoxicity by carcinogenic chromium(VI).
Induction of DNA damage by carcinogenic hexavalent chromium compounds [Cr(VI)] results from its reduction to lower oxidation states. Reductive metabolism of Cr(VI) generates intermediate Cr(V/IV)species, organic radicals, and finally Cr(III), which forms stable complexes with many biological ligands, including DNA. To determine the biological significance of different reaction products, we exam...
متن کاملMetal Hypersensitivity in Orthodontic Patients
Orthodontic treatment of individuals with metal hypersensitivity is a matter of concern for the orthodontist. Orthodontic appliances contain metals like Nickel, Cobalt and Chromium etc. Metals may cause allergic reactions and are known as allergens. Reaction to these metals is due to biodegradation of metals in the oral cavity. This may lead to the formation of corrosion products and their expo...
متن کاملبررسی کارایی هستههای انگور در حذف کروم ششظرفیتی از محلولهای آبی
Background and Objective: Chromium (Cr6+) is a heavy metal which is present in industries sewages likecladding, mining, and in various concentrations. Cr6+ compared with Cr3+ is so toxic, carcinogenic,and mutagenic. Thus the aim of this study was to evaluate the efficiency of 3 types of grape seeds in adsorbing Cr6+ from aqueous solutions and determining its isotherms and kinetics. Materials...
متن کاملRole of valence state and solubility of chromium compounds on induction of cytotoxicity, mutagenesis, and anchorage independence in diploid human fibroblasts.
We previously showed that carcinogenic nickel, arsenic, and chromium(VI) compounds induced anchorage independence (AI) in diploid human fibroblastic cells (HFC) derived from foreskins (K. A. Biedermann and J. R. Landolph, Cancer Res., 47: 3815-3823, 1987). To elucidate the role of the valence state of chromium and solubility of chromium compounds in inducing AI, we studied the ability of solubl...
متن کاملBiomonitoring exposure to metal compounds with carcinogenic properties.
Several metals such as arsenic, beryllium, chromium and nickel are carcinogenic to man when they occur in certain well-defined physicochemical forms. The carcinogenic potential of these metals is linked to their mutagenic properties. The determination of the metal or possibly of its metabolites in biological media and the cytogenetic examination of somatic cells are two methods that can current...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Environmental health and preventive medicine
دوره 20 3 شماره
صفحات -
تاریخ انتشار 2015