Chromium isotopes and the fate of hexavalent chromium in the environment. Copper homeostasis genes e. As with tumors, the incidence of diffuse epithelial hyperplasia was highest in the proximal SI duodenum and lowest in the distal intestine ileum. The use, distribution or reproduction in other forums is permitted, provided the original author s and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. Methods 7 , —
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Besides geography and nitrogen content, cadmium content was significantly correlated to microbial structure in the cross-system microbialite comparison.
Journal List Front Microbiol v. OTUs, and Pseudanabaenaceae and Phormidiaceae.
Relative to the rest of microbialites, BAC showed also the highest Se content and the second highest in N and S content. The evolutionary inheritance of elemental stoichiometry in marine phytoplankton.
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Hexavalent chromium reduction kinetics in rodent stomach contents. Regulatory Toxicology and Pharmacology73— Mutation Research, 60— Supporting information Table S1.
Modeling duodenum and ileum hyperplasia data in males and females separately resulted in BMDL 10 values of 1. Mechanistic insights from the NTP studies of chromium.
Exploring Biogeochemistry and Microbial Diversity of Extant Microbialites in Mexico and Cuba
Oral chromium VI does not affect the frequency of micronuclei in hematopoietic cells of adult mice and of transplacentally exposed fetuses. This approach assumes that, for a given value of pyloric flux, the dose of Cr VI delivered to the SIs and to systemic tissues, as well as their associated risks to the tissue, as a whole, are equivalent for all species. hradity
See all details for Kingston 19in1 USB 2. Timing, processes, and implications for their use as paleoenvironmental proxies. N in soils Hermans et al.
Surgical Endoscopy23 9— SpringerPlus 5 N2 fixation rates and associated diversity nifH of microbialite and mat-forming consortia from different aquatic environments in Mexico.
Coupling genetic and chemical microbiome profiling reveals heterogeneity of archaeome and bacteriome in subsurface biofilms that are dominated by the same archaeal species. These plots, together with the mechanistic data above, indicate that a cancer slope factor, for a linear exposure—response, based on oral tumors is unwarranted.
Mg ratio, has been described as a moderately halophilic bacterial genus, mostly marine but also found in soda systems see Valenzuela-Encinas et al.
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Toxicological Hardit, 16— The abundance of sodium chloride and magnesium sulfate in a hypersaline environment such as CU suggests that microbes present there may be specialized to hypersaline conditions, and while halophilic archaea abundance was low, other microbial groups such as Acidobacteria distinguish CU microbial community from the rest of the microbialites studied details are described below.
Mm, mouse; Rn, haddity Figure S2. Parameter Adonis R 2 Category 0. Thompson 1 ToxStrategies, Inc.
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Bacteroidetes exhibited an overall variation from 3. Modern microbialites are often found in low-nutrient oligotrophic aquatic environments, extremely cold or hot environments Coman et al. The P value for global fit 0. The flux of chromium is highest in the proximal SI duodenum and lowest in the distal intestine hardiity ; the incidences of hyperplasia and harsity decrease as flux decreases. Support Center Support Center. An overview of the functionality of exopolysaccharides produced by lactic bardity bacteria.
Ca and Mg were interestingly different between the microbialite morphotypes of lake Alchichica. Dose—response modeling of the systemic effects.