Dichloromethane mutagenicity

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August undefined, 2024

WebIn vivo mutagenicity was analyzed by gpt mutation/Spi-assays in the livers of rats. In addition, gene and protein expression of CYP2E1 and GSTT1, the major enzymes … Webfor mutagenicity of a cosmetic substance to be annexed in the Regulation (EC) No 1223/2009 should include tests to provide information on the three genotoxic endpoints, …

Antimutagenic activity of commercial chicken-essence against ...

WebThe kinetic properties of bacterial and rat liver glutathione S-transferases (GST) active with dichloromethane (DCM) were compared. The theta class glutathione S-transferase (rGSTT1-1) from rat liver had an affinity for dihalomethanes lower by three orders of magnitude (K app > 50 mM) than the bacterial DCM dehalogenase/GST from … Hepatic toxicity. Hepatic effects are commonly observed forms of toxicity following inhalation (Burek et al. 1984; Nitschke et al. 1988) or oral (Serota et al. 1986a) dichloromethane exposure in rodents. Changes observed in animals following dichloromethane exposure include liver foci/areas of alteration, … See more In 2011, the Integrated Risk Information System (IRIS) of the U.S. Environmental Protection Agency (EPA) released an updated Toxicological Review of Dichloromethane (Methylene Chloride) (U.S. EPA 2011). In … See more The toxicological review was developed according to the general risk assessment guidelines (National Research Council 1983, 1994). The literature search strategy was based on the … See more In summary, the IRIS Toxicological Review of Dichloromethane (U.S. EPA 2011) developed noncancer reference dose values for oral … See more Dichloromethane metabolism occurs primarily in the liver but also in lung tissues, particularly in mice. The PBPK model structure for dichloromethane traces back to one … See more houtman collectie

Methanol 10% in Dichloromethane - Columbus Chemical …

WebMay 17, 2024 · Since the mutagenicity of DCM was significantly increased in TA100-GST compared with mock control (TA100-pCTC), GSTT1 is thought to be involved in the … WebGerm cell mutagenicity Ames test S. typhimurium Result: negative Mutagenicity (micronucleus test) Hamster - male and female Result: negative Carcinogenicity IARC: No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC. Reproductive toxicity No … WebDichloromethane caused a reproducible positive response in bacterial tester strains TA98, TA100, TA1535, and G46 at all doses used with these strains, both with and … houtmachines lier

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WebAbstract. Dichloromethane (DCM) or methylene chloride is a volatile, colorless liquid with a chloroform-like odor. When methyl chloride or methane reacts with chlorine gas at very … WebNov 28, 2016 · 1,2-Dichloropropane (1,2-DCP) and dichloromethane (DCM) are possible causative agents associated with the development of cholangiocarcinoma in employees … houtman chrisWebPT.SMART-LAB INDONESIA MSDS – DICHLOROMETHANE Page 2 MATERIAL SAFETY DATA SHEET DICHLOROMETHANE Revision : 02 Date: November 3rd, 2024 MSDS Number : 068 P202 Do not handle until all safety precautions have been read and understood. P261 Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. P302 + P352 IF … hout manani

"WebProduct name : Dichloromethane CAS-No. : 75-09-2 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Industrial & for professional use only. 1.3 Details of the supplier of the safety data sheet Company : Central Drug House (P) Ltd 7/28 Vardaan House New Delhi-10002 " - Dichloromethane mutagenicity

Dichloromethane mutagenicity

Enzyme-mediated dichloromethane toxicity and mutagenicity of …

WebDichloromethane (DCM) vapour by inhalation is carcinogenic to rodents and is an in vivo rodent cell clastogen and a bacterial mutagen. It has been suggested that the bacterial mutagenicity of DCM is mediated by glutathione (GSH) conjugation. The involvement of endogenous and exogenous GSH in the con … WebBiodegradation of dichloromethane (DCM) to environmentally acceptable products was demonstrated under methanogenic conditions (35 degrees C). When DCM was supplied …

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WebProduct name : Dichloromethane Product Number : 270997 Brand : Sigma-Aldrich Supplier : Sigma-Aldrich 3050 Spruce Street SAINT LOUIS MO 63103 USA Telephone : +1 800-325-5832 ... Germ cell mutagenicity Genotoxicity in vivo - rat - Oral DNA damage Carcinogenicity Carcinogenicity - rat - Inhalation Tumorigenic:Carcinogenic by RTECS … WebMutagenicity: DNA inhibition: Human, Fibroblast = 5000 ppm/1H (Continuous).; Morphological transformation: Rat, Embryo = 160 umol/L.; DNA damage: Oral, rat = 1275 mg/kg.; ... The neurotoxicity is thought to be due to a direct nonspecific CNS depressant action of dichloromethane and to indirect effects of carbon monoxide. …

WebMay 4, 2024 · Mulaudzi et al. evaluated the cytotoxicity activities of petroleum ether, dichloromethane, ethanol and water extracts of S. cordatum by evaluating the mutagenicity using the Salmonella /microsome assay using the plate-incorporation procedure with Salmonella typhimurium tester strains TA98, TA100 and TA102 with and … WebJan 1, 1978 · The possible mutagenicity of the organic solvent dichloromethane was investigated with the mutation test as described by Ames et al. The compound was …

WebSep 1, 1983 · The metabolic activation and mutagenicity of dichloromethane and chlorofluoromethane were investigated using rat liver fractions and Salmonella typhimurium strain TA100. Both dihalomethanes gave a mutagenic response without the addition of rat-liver fractions. This response has been shown to be due to bacterial metabolism of the … WebAug 15, 1983 · Four dihalomethanes; dichloromethane, bromochloromethane, dibromomethane and diiodomethane, have been studied with respect to their reactivities …

WebMay 17, 2024 · It has been suggested that dichloromethane (DCM) and 1,2-dichloropropane (DCP) are responsible for occupational cholangiocarcinoma. Dihaloalkanes are ... Osamu Endo, Kazuho Inaba, Yukari Totsuka, Influence of GSH S-transferase on the mutagenicity induced by dichloromethane and 1,2-dichloropropane, Mutagenesis, …

WebThe mutagenicity of dichloromethane was evaluated in Salmonella bacterial tester strains TA98, TA100, TA1535, TA1537, and TA1538 and Saccharomyces cerevisiae yeast … how many gems is big mascot worthWebSix chicken-essence concentrates (CEC) or their dichloromethane extracts (DECE) showed inhibition of the mutagenicity of indirect environmental mutagens such as 2-amino-3-methylimidazo[4,5- f]quinoline (IQ), 3-amino-l-methyl-5-H-pyrido[4,3-b] indole (Trp-P-2), and benzo[a]pyrene (B[a)P), but contrarily had no effect on direct environmental ... houtman chapeWebDichloromethane is no longer produced in Canada (CPI, 2000). From 1977 to 1990, the quantity of dichloromethane imported and used in Canada ranged annually from 9 to 13.2 kilotonnes (Environment Canada, 1990); however, usage of pure dichloromethane, recycled dichloromethane and dichloromethane contained in formulations has … houtman christelWebDichloromethane (DCM) is a colorless liquid with a sweet, pleasant odor. The major use of DCM is as a solvent in the pharmaceutical and chemical industry for reactions, purification and isolation of intermediates or products. how many gems is meebo in a spaceship worthWebMethylene Chloride is a clear, colorless, nonflammable, volatile liquid chlorinated hydrocarbon with a sweet, pleasant smell and emits highly toxic fumes of phosgene when heated to decomposition. Methylene chloride is primarily used as a solvent in paint removers, but is also used in aerosol formulations, as a solvent in the manufacture of … how many gems is crystal deerWebThe dichloromethane extracts of SRM 1649 and SRM 1650 contained direct-acting mutagens in Salmonella strains TA98 and TA100; SRM 1650 was significantly more potent than SRM 1649 in either strain. Addition of S9 caused a large decrease in mutagenicity of each extract, although SRM 1650 remained more potent. houtman construction brookings sdWebU.S EPA Web Server houtman construction mechanicsburg pa