Dichloromethane mutagenicity
WebThe results suggest that if an interaction between DCM and GSH is required for the activation of DCM to a bacterial mutagen, it occurs at low levels of endogenous GSH and is not significantly affected by GSH supplementation. Dichloromethane (DCM) vapour by inhalation is carcinogenic to rodents and is an in vivo rodent cell clastogen and a … WebTheir mutagenicity was examined with Salmonella typhimurium TA98 in presence or absence of S9 mix. The total mutagenic activity of the acetone extract was 1.8-7.0-fold that of the dichloromethane extract. ... However, the amount of pyrene in the dichloromethane extract was much higher than in the acetone extract. These results indicate that the ...
Dichloromethane mutagenicity
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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. … WebGerm cell mutagenicity No data available Carcinogenicity Evidence of a carcinogenic effect. IARC: 2A - Group 2A: Probably carcinogenic to humans (Dichloromethane) NTP: RAHC - Reasonably anticipated to be a human carcinogen (Dichloromethane) OSHA: OSHA specifically regulated carcinogen (Dichloromethane) Reproductive toxicity No …
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 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 …
WebJan 9, 2006 · Mutagenicity: mutagenic in salmonella typhimurium Ames assay : Gene mutation in hamster ovary cells (3,000 ppm) : DNA damage in mouse liver cells (400 u mol/L) OTHER DATA: Limited evidence of a carcinogenic effect. Component Carcinogenicity Dichloromethane (75-09-2) ACGIH: A3 - Confirmed animal carcinogen with unknown … WebDichloromethane (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.
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, namely 1) mutagenicity at the gene level, 2) chromosome breakage and/or rearrangements (clastogenicity), and 3) numerical chromosome aberrations (aneuploidy). This
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 … dave buckley city of beaconWebDichloromethane 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 … dave buehring lionshareWebfor 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, … black and gold handbags onlineWebJan 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 … black and gold halloween costumesWebProduct 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 … black and gold handkerchiefWebJul 1, 2024 · It has been suggested that dichloromethane (DCM) and 1,2-dichloropropane (DCP) are responsible for occupational cholangiocarcinoma. Dihaloalkanes are metabolically activated by GSH S-transferase theta1 (GSTT1) to yield products such as episulfonium ions. However, whether the GSTT1-mediated step of t … dave buell for pa houseWebAgency for Toxic Substances and Disease Registry dave buehler law fosston mn