Our results indicated possible decreasing effect of ALA on inflammatory mediators especially in high dose .
& NA ; Alpha‐Lipoic Acid ( ALA ) is a natural antioxidant compound which is naturally found in plant sources .
New evidence revealed that ALA can reduce inflammation .
Our objective in this meta‐ analysis was to conduct a systematic review and meta‐ analysis on r and omized controlled trials to indicate ALA effects on serum inflammatory mediators concentration such as tumor necrosis factor‐alpha ( TNF‐&agr ; ) , c‐reactive protein ( CRP ) , and interleukin‐6 ( IL‐6 ) .
α-lipoic acid can improve endothelial dysfunction in subjects with impaired fasting glucose.
Several studies showed that impairment of endothelium-dependent arterial dilation ( EDAD ) exists in subjects with impaired fasting glucose ( IFG ) . The crucial mechanism of this endothelial dysfunction remains unclear . We hypothesized that oxidative stress may be partially responsible for the impairment in EDAD in subjects with IFG . Thus , the present study was design ed to assess whether the antioxidant α-lipoic acid can improve endothelial dysfunction in subjects with IFG . Sixty subjects with newly diagnosed IFG and 32 healthy individuals with normal glucose tolerance were enrolled . Subjects were r and omized into 2 groups : untreated experimental group ( n = 30 ) and α-lipoic acid treatment group ( n = 30 , α-lipoic acid 600 mg via intravenous infusion once a day for 3 weeks ) . We measured EDAD at baseline and after 3 weeks of intervention . At baseline , EDADs in α-lipoic acid and untreated experimental groups were 4.03 % and 4.14 % , respectively , which were significantly lower than that in controls ( 5.72 % ) ( P < .001 ) . After 3 weeks of intervention , there was a remarkable increase in EDAD ( reaching 5.10 % ; ΔEDAD , 26.5 % ) ( P < .01 ) and a significant decrease in plasma thiobarbituric acid reactive substances ( TBARS ) ( 29.1 % ) ( P < .05 ) in IFG subjects treated with α-lipoic acid . Endothelium-dependent arterial dilation and TBARS remained unchanged before and after intervention in the untreated experimental group . The absolute changes in EDAD showed a significant negative correlation with the changes in TBARS ( r = -0.444 , P = .014 ) . Our data showed that IFG subjects have impaired endothelial function  and that antioxidant α-lipoic acid can improve endothelial function through a decrease of oxygen-derived free radicals
Our results indicated possible decreasing effect of ALA on inflammatory mediators especially in high dose .
& NA ; Alpha‐Lipoic Acid ( ALA ) is a natural antioxidant compound which is naturally found in plant sources .
New evidence revealed that ALA can reduce inflammation .
Our objective in this meta‐ analysis was to conduct a systematic review and meta‐ analysis on r and omized controlled trials to indicate ALA effects on serum inflammatory mediators concentration such as tumor necrosis factor‐alpha ( TNF‐&agr ; ) , c‐reactive protein ( CRP ) , and interleukin‐6 ( IL‐6 ) .