RESUMEN
PURPOSE: The management of acute stroke is challenging. The aim of this meta-analysis was to determine the efficacy and tolerability of edaravone, with or without thrombolytic therapy, in the treatment of patients with acute ischemic stroke. METHODS: The PubMed, EMBASE, and Cochrane databases were searched for randomized controlled trials (RCTs) and cohort studies. Mean differences (MD), risk ratios (RR), 95% confidence interval (CI), and heterogeneity were calculated. FINDINGS: Totals of nine RCTs and four cohort studies were included, for a total of 2102 patients. In patients with acute ischemic stroke, edaravone monotherapy was associated with significantly improved Barthel Index of functioning in activities for daily living (MD, 23.95; 95% CI, 18.48 to 29.41; P < 0.001) and neurologic deficit, (as measured using the National Institutes of Health Stroke Scale score) (MD = -3.49; 95% CI, -5.76 to 1.22; P = 0.003), on short-term follow-up. However, edaravone was not associated with an improved rate of death or disability (RR = 0.75; 95% CI, 0.45 to 1.23; P = 0.25) on long-term follow-up.When plus to thrombolytic therapy, edaravone was associated with significant improvements in recanalization rate (RR = 1.71; 95% CI, 1.05 to 2.77; P = 0.03) and neurologic deficit (MD = 3.97; 95% CI, 5.14 to 2.79; P < 0.001), without an increase in the prevalence of bleeding events (RR = 1.11; 95% CI, 0.76 to 1.62; P = 0.59). However, edaravone did not have a significant effect on death or disability (RR = 0.85; 95% CI, 0.69 to 1.04; P = 0.12). IMPLICATIONS: Based on the findings from the present meta-analysis, edaravone was an effective and well-tolerated neuroprotective agent in these patients with ischemic stroke. With the use of edaravone, activities of daily living and neurologic deficits, along with recanalization rates, were improved on short-term follow-up, but the long-term effects still need confirmation in larger-scale clinical trials.
Asunto(s)
Accidente Cerebrovascular Isquémico , Fármacos Neuroprotectores , Accidente Cerebrovascular , Humanos , Edaravona/uso terapéutico , Accidente Cerebrovascular/tratamiento farmacológico , Accidente Cerebrovascular Isquémico/tratamiento farmacológico , Hemorragia/tratamiento farmacológicoRESUMEN
In the present study, the microRNA (miRNA) expression profiles of rats exposed to high altitude hypoxia and normal conditions were obtained from miRNA array analysis. Bioinformatics analyses, including the use of the Gene Oncology and Kyoto Encyclopedia of Genes and Genomes databases, were used to identify the genes and pathways, which were specifically associated with high altitude hypoxic environmentassociated miRNAs. A total of 26 miRNAs were differentially expressed in the two groups, comprising six upregulated and 20 downregulated miRNAs. In the present study, a novel pattern of upregulated miRNAs and their associated pathways were constructed, including proteoglycans in cancer, spliceosome, gluamatergic synapse, glycolysis/gluconeogenesis, Foxo, cGMPPKG and p53 signaling pathways, which may provide novel targets for diagnosing and understanding the mechanism of high altitude hypoxiainduced disease.