Results 151 to 160 of about 15,299 (194)

The neurotoxicity of aflatoxin B1 in the rat

Toxicology, 1983
The effects of repeated intraperitoneal administration of aflatoxin B1 on the peripheral and central nervous systems of rats were investigated. Biochemical markers of neurotoxicity were monitored in nervous tissues following aflatoxin B1 dosage and after the cessation of aflatoxin B1 administration.
openaire   +2 more sources

Antineoplastic Activity of Aflatoxin B1

Nature, 1968
THE aflatoxins, a group of related mycotoxins produced by Aspergillus flavus, have been extensively evaluated for biological activity. They are carcinogenic in animals1–5. The aflatoxin B1 fraction has been teratogenic in hamsters6, probably mutagenic in micro-organisms7 and caused chromosome breakage in mammalian cell cultures7,8.
openaire   +2 more sources

Fungal degradation of aflatoxin B1

Natural Toxins, 1999
A number of fungal cultures were screened to select an organism suitable to be used in the detoxification of aflatoxin B1. They were co-cultured in Czapek-Dox-Casamino acid medium with aflatoxin B1 producing Aspergillus flavus. Several fungal cultures were found to prevent synthesis of aflatoxin B1 in liquid culture medium. Among these Phoma sp., Mucor
openaire   +2 more sources

Residues of aflatoxin B1 in broiler meat: Effect of age and dietary aflatoxin B1 levels

Food and Chemical Toxicology, 2010
This study describes the effect of dietary levels of aflatoxin B1 (AFB1) and age of the birds upon the residue level in liver and muscles of broiler chicks. In three different experiments broiler chicks of 7, 14 and 28 days of age were kept for 7 days on contaminated rations having 1600, 3200 and 6400 μg/kg AFB1.
Zahid, Hussain, Muhammad Zargham, Khan, Ahrar, Khan, Ijaz, Javed, Muhammad Kashif, Saleemi, Sultan, Mahmood, Muhammad Rafique, Asi   +6 more
openaire   +2 more sources

Fluorescence changes of aflatoxins B1 and G1

Zeitschrift für Lebensmittel-Untersuchung und -Forschung, 1975
The effects of various factors, such as pH, buffer, sodiumchloride and ultra-violet radiation on the fluorescence of aflatoxins B1 and G1 have been studied. The fluorescence characteristics of aflatoxins B1 and G1 underwent a marked change at pH values above 7.2.
H R, Prasanna, S R, Gupta, L, Viswanathan, T A, Venkitasubramanian   +3 more
openaire   +2 more sources

Effects of aflatoxin B1 on myelopoiesis in vitro

Toxicology, 1991
The short-term cultures of mouse myeloid progenitor cells for granulocytes and monocytes, granulocyte-monocyte colony-forming units (CFU-GM) (CFU-GM assay) and mouse long-term bone marrow culture (LTBMC) were used to investigate the hemopoietic suppression caused by aflatoxin B1 (AFB1).
V, Cukrová, E, Langrová, M, Akao
openaire   +2 more sources

Thermal stability of aflatoxin B1 and ochratoxin A

Mycotoxin Research, 2008
Within this research project, the LCI (Lebensmittelchemisches Institut des Bundesverbandes der Deutschen Süßwarenindustrie e. V.) conducted systematic studies to determine the thermal stability of the mycotoxins ochratoxin A (OTA) and aflatoxin B1, as the available literature provides contradictory data.
M, Raters, R, Matissek
openaire   +2 more sources

Inactivation of aflatoxin b1 mutagenicity by thiols

Food and Chemical Toxicology, 1982
The mutagenicity of aflatoxin B1 to Salmonella typhimurium strain TA98 decreased rapidly upon exposure of aflatoxin B1 to various thiols in aqueous solution. Mutagenic activity was reduced to control values within 24 hr with N-acetyl-L-cysteine (NAC), N-2-mercaptopropionylglycine (MPG), mercaptoethanol, reduced glutathione or mercaptopropionic acid at ...
M, Friedman, C M, Wehr, J E, Schade, J T, MacGregor   +3 more
openaire   +2 more sources

Photophysics and photochemistry of aflatoxins B1 and B2

Photochemical & Photobiological Sciences, 2011
Aflatoxins are mycotoxins produced by fungi of the genus Aspergillus, which is widely spread in the tropics and subtropics. To date, aflatoxin phototoxicity has been recognized, but the mechanism responsible for this phototoxicity has not been fully characterized.
J C, Netto-Ferreira, B, Heyne, J C, Scaiano   +2 more
openaire   +2 more sources

Metabolism of aflatoxin B1 by the guinea-pig

Food and Cosmetics Toxicology, 1973
Abstract Aflatoxin B 1 was given by ip injection to year-old female guinea-pigs and 6 hr later aflatoxin B 1 and its metabolites were recovered and isolated chromatographically. Approximately 14% of the administered toxin was represented by the isolated compounds.
M T, Koes, L J, Forrester, H D, Brown
openaire   +2 more sources