Hyperhomocysteinemia is a recently recognized independent risk factor for cardiovascular diseases. Although the mechanism of vascular damage in hyperhomocysteinemia has not been completely understood, it may lead to this condition by increasing free radical production and lipid peroxidation,...

Aim: Raynaud's phenomenon is characterized by transient reduction in blood supply through the small arteries in the hands and feet. Secondary Raynaud's phenomenon accompanies collagen vascular diseases such as rheumatoid arthritis and scleroderma. The relationship between...

Hyperhomocysteinemia and increased ACE activity due to the deletion polymorphism of the ACE gene are two common features in a wide variety of pathological conditions that exhibit endothelial disturbances. In this study, we examined both the I/D genotype distribution and the activity of ACE in...

In chronic renal failure, high plasma homocysteine levels are a common finding and in uremia almost the rule. The cause of hyperhomocysteinemia in ESRD (end stage renal disease) whether it lies in an impared renal or extrarenal metabolism or through uremic retention toxins, is still under...

Objective: It has been proposed that the homocysteine (Hcy) produced during the metabolism of methionine plays a role in etiopathogenesis of several diseases. The interest in measurement of plasma Hcy levels has increased recently upon the finding that Hcy is an independent...