نتایج جستجو برای: 2 b afb1 500 mgkg of feed
تعداد نتایج: 21554376 فیلتر نتایج به سال:
Aflatoxin B1 (AFB1) contamination in the food chain is a major cause of hepatocellular carcinoma (HCC). More than 60% of AFB1 related HCC carry p53 codon 249 mutations but the causal mechanism remains unclear. We found that 1) AFB1 induces two types of DNA adducts in human hepatocytes, AFB1-8,9-epoxide-deoxyguanosine (AFB1-E-dG) induced by AFB1-E and cyclic α-methyl-γ-hydroxy-1,N2-propano-dG (m...
in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...
Abstract Background Although humans and animals are often simultaneously exposed to a variety of mycotoxins via feed food consumption, in which aflatoxin B1 (AFB1) deoxynivalenol (DON) is one the most prevalent combination mycotoxins. Many toxicological studies have merely focused on impacts single In present study, combined toxicity related mechanism AFB1 DON zebrafish ( Danio rerio ) were inv...
Aflatoxin B1 (AFB1) is a mutagen and IARC (International Agency for Research on Cancer) Group 1 carcinogen that causes hepatocellular carcinoma (HCC). Here, we present the first whole-genome data on the mutational signatures of AFB1 exposure from a total of >40,000 mutations in four experimental systems: two different human cell lines, in liver tumors in wild-type mice, and in mice that carried...
Studies in animals and humans have established serum aflatoxin-albumin adducts as biomarkers of exposure to aflatoxin B1 (AFB1), a food-borne hepatocarcinogen. To assess the utility of measurements of aflatoxin-albumin adducts to predict risk of hepatocellular carcinoma (HCC), 123 male F344 rats were dosed with 20 microg of AFB1 daily for 5 weeks after randomization into three groups: no interv...
Covalent binding of aflatoxin B1 (AFB1) with hepatic DNA may be a critical step in hepatocarcinogenesis. The extent of the AFB1 binding to DNA may depend on various endogenous factors and concurrent exposure to other environmental agents. This study was performed to determine whether any individual characteristics correlated with the formation of AFB1-DNA adducts. The major AFB1-DNA adduct, AFB...
DOI: 10.21276/sjams.2017.5.9.49 Abstract: Evolvulus alsinoides Linn. Is a medicinal plant that belongs to the family convolvulaceae. This study seeks to evaluate the effects of the aqueous extract of Evolvulus alsinoides Linn. on sperm parameters and the testis. A total of fifty (50) Wistar albino rats weighing 135-150g were used in this research. The rats were divided into five (I-V) Groups of...
Mycotoxins, even so government regulates to control their levels in animal balance feeds, they could pose a problem and human consumption health. Therefore, the aim was determine of total aflatoxins found finisher balanced feeds for broilers pigs, produced by feed factories (BFF) Venezuela. Eleven BFFs were sampled evaluated presence aflatoxins: AFB1, AFB2, AFG1 AFG2, determined using analytica...
A simple procedure was developed for in vitro synthesis and characterization of aflatoxin B1-lysine adduct using aflatoxin B1, N-alpha-acetyl lysine and m-chloroperbenzoic acid (MCPBA). At a molar ratio of 1:16 (aflatoxin B1:N-alpha-cetyl lysine), the recovery of adduct was 62%. Analysis of the adduct by thin-layer chromatography showed a single spot (Rf = 0). Absorption spectra of the adduct s...
BACKGROUND The involvement of cytochrome P450 (CYP450) isozymes and the selenogenome in selenium-mediated protection against aflatoxin B1 (AFB1)-induced adverse effects in broilers remains unclear. OBJECTIVE This study was designed first to determine whether selenium could reduce AFB1-induced hepatotoxic effects and then to determine whether these effects were due to changes in the CYP450 iso...
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