Abstract
Cerebral infarction presents with neurological deficits caused by the death of neurons in a focal area of the brain. S100B is a biomarker that increases in brain damage. Neuroprotectives can reduce the brain sequels after neurological insult. The purpose of this study was to evaluate the neuroprotective effects of L-carnitine and Fat emulsion (Lipofundin®) alone and in combination in patients with ischemic stroke.In a prospective, RCT, and double-blind study 100 patients with MCA ischemic cerebrovascular accident who were admitted in the first 24 h of injury entered the study. The patients were randomly assigned into four groups of L-carnitine, fat emulsion, L-carnitine plus fat emulsion and control. Fat emulsion 10%, 500 mL, was infused over 6 to 12 h and 1 gr of L-carnitine (10 mL of solution) was administered orally to patients in addition to common therapies, according to the American Heart Association and American Stroke Association (AHA/ASA) guidelines. The patients in the control group received only the usual treatment according to stroke guidelines. Blood samples before the intervention, then after 24 h, 48 h, and 7 days later were taken and immunoenzymatic colorimetric method was used for quantitative determination of S100B concentration in the patients’ serum.In the within group analysis, all of our treatment interventions (except control group) have decreased S100B levels statistically significant (P < 0.05). Moreover, changes in observed levels of S100B before and after intervention were different between the groups and the observed differences were statistically significant (P = 0.01). In the GEE model, it was found that S100B levels in the L-carnitine plus fat emulsion group decreased more than the control group and this decline has been statistically significant [P = 0.02, 20.47 (CI 95%: 6.25-34.41)], but in comparison of L-carnitine and fat emulsion group with control group, did not reached statistical significance (P > 0.05).Based on the results obtained from this study, it seems that L-carnitine with fat emulsion could lead to neuroprotective effects with a significant reduction in the S100B biomarker.
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