Endotoxic shock is associated with increased metabolism of arachidonic acid to thromboxanes (TX) and prostaglandins (PG). This study assessed the effects of varied doses of aspirin, an inhibitor of arachidonic acid metabolism, on Salmonella enteriditis endotoxin (20 mg/kg)-induced mortality, plasma levels of arachidonate metabolites and other pathophysiological sequelae in Long-Evans rats. Aspi...

There is now strong epidemiological evidence that estrogen replacement therapy has a protective effect in postmenopausal women. The cardiovascular protective action of estrogen is reported to be mediated indirectly by an effect on lipoprotein metabolism and by a direct effect on the vessel wall itself. Estrogen is active both in vascular smooth muscle and endothelium. Functionally competent est...

Astaxanthin is a carotenoid with potent antioxidant and anti-inflammatory activity. To evaluate the anti-inflammatory effect of astaxanthin on skin deterioration, we confirmed its role in epidermal-dermal interactions in vitro. Astaxanthin treatment suppressed ultraviolet B (UVB)-induced inflammatory cytokine secretion in keratinocytes, and matrix metalloproteinase-1 secretion by fibroblasts cu...

Hormone replacement therapy (HRT) is associated with reduced risk of coronary heart disease (CHD) and stroke in observational studies; however the possibility of confounding by other risk factors requires prospective assessment of its risks and benefits in randomised controlled trials. The HERS trial of oral HRT in secondary CHD prevention observed an early increased risk of myocardial infarcti...