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Carcinogenic - Europe PMC

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Last Updated: 10 January 2023

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Bayesian inference of heavy metals exposure in crayfish for assessing human non-carcinogenic health risk.

All heavy metal concentrations were below their safety standards, with Cr in Northwest China as the highest concentration, and Cd in Southwest China at the minimum. Pb, Cd, Hg, As, and Cr obtained with two models were both nearly identical to the observed not detect rates, which were all identical to the observed not detect rates. The posterior probabilistic density lines for Pb, Hg, and Cd concentrations obtained with two models were similar, and provided clear empirical results.

Source link: https://europepmc.org/article/MED/36608734


Advancing metabolic networks and mapping updated urinary metabolic fingerprints after exposure to typical carcinogenic heterocyclic aromatic amines.

Rats were orally administered with a single dose of 2-amino-1-methylimidazo [4,5-b]pyridine or 2-amino-3,8-dimethylimidazo [4,5-f]quinoxaline or 2-amino-3,8-dimethylimidazo [4,5-f]pyridine or 2-amino-3,8-dimethylimidazo [4,5-b]pyridine [4,5-related urine samples were then urine and urine samples were injected with a single dose of pyridine [4,5-a pyridine [4,5-idazo [4,5-iso]pyridine [4,5-dazo]pyridine [4,5-dazo [4,5-dazo]pyridine or 2-a] hydroxy [4,5-dazo [4,5-a] methylamine-dazo [4,5-imethylimidazo [4,5-methylimidazo [4,5-b]pyridine]pyridine [4,5-dazo [4,5-dazo]pyridine [4,5- We followed 23 and 37 urinary metabolites as the biotransformation products of PhIP and MeIQx, respectively, and the first identified demethylated metabolites of PhIP, tentatively identified as 2-amino-6-b]pyridine [4,5-b]pyridine [4,5-b]pyridine, and classical HAAs' dihydroxylation products as short-term biomarkers of metabolic pathways, helping to investigate the metabolic pathways. In addition, we discovered that histamine, methionine, alanine, and 4-anidinobutanoic acid may have been identified as potential oncogenic or carcinogenic biomarkers for both PhIP and MeIQx's specific key metabolites.

Source link: https://europepmc.org/article/MED/36572270


Non-carcinogenic/non-nephrotoxic aristolochic acid IVa exhibited anti-inflammatory activities in mice.

However, exposure to AAI and AAII has been a significant risk factor for severe nephropathy and carcinogenicity. To determine the anti-inframammary effects of AAIVa, we used RAW 264. 7 cells, the ear edema mouse model, and the lipopolysaccharide-induced systemic inflammation model in TNF-Luc mice. Our findings showed that AAIVa could reduce pro-inflammatory cytokines production in LPS-stimulated RAW 264. 7 cells, indicating its anti-inflammatory properties in vitro. In TNF-Luc mice, a single dose of AAIVA may reduce LPS-induced inflammation by lowering luciferase activity of TNF-u03b1 at 3 h. In addition, the online pharmacological databases predicted that AAIVa will investigate T cell activation-related protein regulation to have an anti-inflammatory effect. In conclusion, we reported that AAIVa had an anti-inflammatory effect for the first time; our results are helpful for further investigations into the pharmacological mechanism of AAIVa.

Source link: https://europepmc.org/article/MED/36525161


rCsHscB Derived from Clonorchis sinensis : A Carcinogenic Liver Fluke Ameliorates LPS-Induced Acute Hepatic Injury by Repression of Inflammation.

Previous studies showed that Clonorchis sinensis, a carcinogenic liver fluke, had an anti-inflammatory role and could have an anti-inflammatory disease such as enteritis; however, whether it can prevent sepsis-associated acute liver injury caused by LPS is still unclear. Both in vivo and in vitro were investigated in our latest research, including the potential role of rCsHscB on LPS-induced acute liver disease in both in vivo and in vitro. In a murine model of sepsis-associated acute liver disease, the researchers showed that rCsHscB prevented LPS-induced liver damage by histopathological investigation and liver damage markers. LPS-induced serum IL-6 and MCP-1 induced serum IL-6 and MCP-1 levels have also decreased dramatically. In conclusion, the present research finds that rCsHscB-derived from a fluke C. sinensis prevents sepsis-associated acute liver injury caused by LPS, which may be due to the blockage of the MAPK signaling pathway.

Source link: https://europepmc.org/article/MED/36558882


Zearalenone and its metabolite exposure directs oestrogen metabolism towards potentially carcinogenic metabolites in human breast cancer MCF-7 cells.

The effects of ZEN and its metabolites u03b1-zearalenol, and u03b2-zearalenol on the development of carcinogen-catechols in MCF-7 cells were investigated in this study. The rate of ethoxyresorufin O-deethylation was determined by investigators trying to determine the effects of mycoestrogens on the development of cytochrome P450 1A1 and CYP1B1. The quantitative PCR results showed the upregulation of AhR and confirmed the selective effect of mycoestrogens on CYP1 expression levels and the decrease of the CYP1/CYP 1B1 ratio.

Source link: https://europepmc.org/article/MED/36517666

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions