aflatoxins in iran: nature, hazards and carcinogenicity

Aflatoxins in Iran: Nature, Hazards and Carcinogenicity

Many studies have shown that mycotoxin contamination of agricultural products is a challenge for individual's health especially in developing countries. Improper production and storage of foods, prepare conditions for aflatoxin production in crops, especially rice, wheat, pistachio, walnut, almond, etc which are the main sources of foods for people. Feeding livestock by contaminated bread is an...

Structure-Activity Relationships in Toxicity and Carcinogenicity of Aflatoxins and Analogs1

Aflatoxins B! and G,, in single doses, were lethal and had similar relative potencies in the duckling (50% lethal dose, 0.73 mg/kg versus 1.18 mg/kg) and in the rat (50% lethal dose, 1.16 mg/kg versus 2 to 4 mg/kg). Aflatoxins B2 and G2 were less potent in the duckling (50% lethal dose, 1.76 mg/kg versus 2.83 mg/kg) and were nontoxic to rats at doses of 200 mg/kg. Aflatoxin BI induced hepatocel...

Structure-activity relationships in toxicity and carcinogenicity of aflatoxins and analogs.

Aflatoxins B! and G,, in single doses, were lethal and had similar relative potencies in the duckling (50% lethal dose, 0.73 mg/kg versus 1.18 mg/kg) and in the rat (50% lethal dose, 1.16 mg/kg versus 2 to 4 mg/kg). Aflatoxins B2 and G2 were less potent in the duckling (50% lethal dose, 1.76 mg/kg versus 2.83 mg/kg) and were nontoxic to rats at doses of 200 mg/kg. Aflatoxin BI induced hepatocel...

Influence of Dietary Protein and Vitamin B12on the Toxicity and Carcinogenicity of Aflatoxins in Rat Liver1

The influence of dietary protein content and dietary vitamin B,, supplement on the hepatotoxicity and carcinogenicity of aflatoxin in rat liver was studied. In animals fed a low-protein diet, aflatoxin induced extensive toxic and carcinogenic effects. Cirrhosis was significantly pre vented to a certain level by vitamin B,_administration, but the incidence of cholangiofibrosis and hyperplastic n...

ec adoption and critical success factors of ec in smes in iran

تجارت الکترونیکی شیوه اجرای مسئولیتها، تقابل با مشتریان و امور معمول عملیاتی در شرکتها را تغییر داده است. تجارت الکترونیکی در عمل تنها خرید و فروش کالاها را از طریق ابزار الکترونیک نمی باشد، بلکه تمام فعالیتهای لازم جهت انجام فرایند فروش را نیز در بر میگیرد. در اواخر دهه 1990 بسیاری از شرکتها فعالیتهای خود را به منظور دستیابی به مشتریان جدید و یا ارائه فرصتهای جدید به مشتریان موجود گسترش دادند...

Chemical nature and biological effects of the aflatoxins.