Vol 8, No 4 (2002)
Research paper
Published online: 2002-10-21
Influence of L-arginine oral supplementation on oxidative stress in patients with intermittent claudication
Acta Angiologica 2002;8(4):137-142.
Abstract
Background. It is suggested that the administration of L-arginine
to patients with NO deficiency is the rational method both of increasing NO production
by the endothelium and decreasing the free radical release. In the last year it
was proved that this therapeutic procedure could be successful in patients with
atherosclerotic ischaemia of the lower extremities.
Aim of the study. The aim of this study was the estimation of the influence of 28-day L-arginine oral supplementation on NO concentration and the parameters of total antioxidant status (TAS) in patients with intermittent claudication.
Material and methods. 16 patients (8 female and 8 male) were examined diagnosed with atherosclerosis of the lower extremities in Fontaine’s II stage and receiving L-arginine in the dose of 3 x 4 g/day. During the study patients were under accurate clinical observation whose aim was to evaluate drug tolerance and to notice possible adverse effects of L-arginine used in therapy. During the study in 0, after 3 h, and on the 7th, 14th, and 28th day, subjective and objective examinations were conducted with evaluation of the intermittent claudication distance. From every patient the blood samples were taken for the determination of NO concentration and TAS.
Results. After L-arginine treatment in all patients we observed clinical improvement, such as elongation of intermittent claudication distance. We noticed the increase of NO-concentration and higher TAS after 3 h, 7, 14 and 28 days of L-arginine treatment.
Conclusions. Oral supplementation of L-arginine causes a significant increase of NO-concentration and TAS in patients with intermittent claudication.
Aim of the study. The aim of this study was the estimation of the influence of 28-day L-arginine oral supplementation on NO concentration and the parameters of total antioxidant status (TAS) in patients with intermittent claudication.
Material and methods. 16 patients (8 female and 8 male) were examined diagnosed with atherosclerosis of the lower extremities in Fontaine’s II stage and receiving L-arginine in the dose of 3 x 4 g/day. During the study patients were under accurate clinical observation whose aim was to evaluate drug tolerance and to notice possible adverse effects of L-arginine used in therapy. During the study in 0, after 3 h, and on the 7th, 14th, and 28th day, subjective and objective examinations were conducted with evaluation of the intermittent claudication distance. From every patient the blood samples were taken for the determination of NO concentration and TAS.
Results. After L-arginine treatment in all patients we observed clinical improvement, such as elongation of intermittent claudication distance. We noticed the increase of NO-concentration and higher TAS after 3 h, 7, 14 and 28 days of L-arginine treatment.
Conclusions. Oral supplementation of L-arginine causes a significant increase of NO-concentration and TAS in patients with intermittent claudication.
Keywords: L-arginineendotheliumintermittent claudicationnitric oxidetotal antioxidant status