研究人员通过长期剂量实验揭示了硝酸钠对健康雌雄大鼠血清ALT、AST和ALP的hormesis效应。实验将120只大鼠分为6组，发现中剂量硝酸钠（100-150 mg/L）通过提升一氧化氮代谢物(NOx)水平发挥肝保护作用，而高剂量（>200 mg/L）则呈现毒性。该研究为食品添加剂安全剂量 ...

为解决植物多酚剂量效应机制不明的问题，研究人员系统评估了膳食黄酮山柰酚（Kaempferol）的 hormesis（低剂量刺激/高剂量 ...

Legend has it that one of the greatest fears of Mithridates VI, King of the Hellenistic State of Pontus, was to be poisoned by his enemies, as his brother Mithridates V had been. To prevent the same ...

Even though my first love will always be chemical ecology, I often find myself dabbling in the exotic realm of ecotoxicology. It’s kind of dangerous and sometimes sexy and I think that’s why I am ...

Add Yahoo as a preferred source to see more of our stories on Google. A man jumping into freezing cold water. Healthy stress, like extreme temperatures, could help you add years to your life. When we ...

Type 2 diabetes mellitus is characterized by subclinical systemic inflammation and impaired regulation of blood glucose levels. Interestingly, impairment of glycemic control occurs despite substantial ...

Some in the popular press may have just discovered what many scientists have been saying for more than a decade: a little radiation is good for you. Over the past few months two major publications ...

Medicine, science, and public policy are driven by competing theories about how our bodies react to various substances. The U.S. Environmental Protection Agency (EPA) bases its decisions on a linear ...