Effects of Alpha Lipoic Acid Supplementation on Serum Levels of Oxidative Stress, Inflammatory Markers and Clinical Prognosis among Acute Ischemic Stroke Patients: A Randomized, Double Blind, TNS Trial.

Purpose: Stroke is one of the most common conditions causing death. There have been few studies examining the effects of alpha lipoic acid (ALA) on stroke patients. In this regard, the present randomized controlled clinical trial was conducted to examine the effects of ALA supplementation on serum albumin, and inflammatory and oxidative stress markers in stroke patients. Methods: The present paralleled randomized controlled clinical trial involved 42 stroke patients who were over 40 years and under enteral feeding. The participants were randomly assigned into two groups and finally 40 patients completed the study. Patients in alpha lipoic acid group (n=19) took 1200 mg ALA supplement daily along with their meal, and participants in control group (n=21) underwent the routine hospital diet for 3 weeks. Fasting blood samples were obtained and albumin, oxidative stress, and inflammatory indices were assessed at baseline, as well as at the end of the trial. Results: After 3 weeks, treatment of patients with ALA led to a significant decrease in tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6) levels (P=0.01) compared to baseline. But serum levels of albumin, total antioxidant capacity (TAC), malondialdehyde (MDA), highsensitivity C-reactive protein (hs-CRP), IL-6 and TNF-α did not change significantly vs. control group (P>0.05). Conclusion: ALA did not significantly change the serum levels of albumin and inflammatory as well as antioxidant capacity indices in stroke patients compared with the control group. More clinical trials with large sample sizes and long duration are needed to clarify the effects of ALA on these patients.

Effect of Whey Protein Supplementation on Inflammatory and Antioxidant Markers, and Clinical Prognosis in Acute Ischemic Stroke (TNS Trial): A Randomized, Double Blind, Controlled, Clinical Trial.

Purpose: Malnutrition is extensively prevalent amongst critically ill patients afflicted by ischemic stroke (IS). This study purpose was to evaluate the protein whey effect on inflammatory and antioxidant markers and functional prognosis in acute IS patients. Methods: out of 42 patients with acute IS who were referred to Imam Reza Educational Hospital, Tabriz, Iran, 40 patients participated in the study. Twenty-one patients as control group received the hospital routine formula, and 19 patients as intervention group received 20 g/daily of whey protein through oral gavage. Inflammation and oxidative stress indicators (e.g., albumin, malondialdehyde (MDA), total antioxidant capacity (TAC), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), and high sensitivity C reactive protein (hs-CRP)and clinical variables included in were evaluated using National Institutes of Health Stroke Scale (NIHSS) and modified Rankin Scale (mRS) during admission and also 3 weeks after intervention. Results: Whey protein supplementation significantly decreased the NIHSS and mRS scores, TNF-α, IL-6, and hs-CRP by passing 3 weeks from intervention (P<0.05). However, whey formula had no significant effect on other markers including albumin, and MDA. The hs-CRP (P = 0.02) reduction was significantly higher in whey protein group in comparison with control group. Conclusion: Whey protein supplementation reduced inflammation markers in those patients with IS. However, these changes should be studied in larger-scale trials.