Ischemic stroke is a life-threatening condition that also frequently results in long-term disability. Currently, intravenous thrombolysis with tissue plasminogen activator and mechanical thrombectomy is the most popular treatment. However, the narrow time window and related complications limit the treatment benefits. Exosomes have recently emerged as ideal therapeutic candidates for ischemic stroke with the ability to pass through the blood_brain barrier and mediate intercellular communication, in addition, exosomes and their contents can be bioengineered to implement targeted delivery. In the last two decades, exosomes and exosomal noncoding RNAs have been found to be involved in the pathophysiological progression of ischemic stroke, including atherosclerosis, apoptosis, inflammation, oxidative stress, and neurovascular remodeling. In this review, we describe the latest progress regarding the role of exosomal long noncoding RNAs and circular RNAs in the occurrence, progression, and recovery of ischemic stroke. Exploration of exosomal noncoding RNAs and their correlated effects in ischemic stroke may facilitate accurate diagnosis, and they may serve as new therapeutic targets for the disease.
Purpose: We aimed to evaluate the feasibility of three-dimensional ultrasound imaging (3DUS) in assessing the therapeutic effect of moderate-intensity statin therapy on carotid atherosclerotic plaques.Methods: Patients with carotid plaques were recruited to the study from January 2016 to September 2018, and were divided into two groups based on whether or not they were taking statins. All participants underwent 3DUS of their carotid plaques at baseline, then 3 months and 2 years after initial examination. The changes of the carotid plaques were compared between the two groups.Results: Were included 97 patients (57 males and 40 females), 65.26 ± 9.53 year-old with 67 into the statin group and 30 in the control group. The baseline levels of total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) were lower in the statin group than in the control group (3.79 ± 0.78 mmol/L vs 4.50 ± 1.12 mmol/L; 2.01 ± 0.62 mmol/L vs 2.58 ± 0.91 mmol/L, P < .05). There was no significant difference in the change of total plaque volume (TPV) detected by 3D-US between the statin (median [interquartile range]: 0 [−30-20] mm 3 ) and the control group (0 [−22.5-25] mm 3 ) at 3 months. Over 2 years, the TPV increased faster in the control group (+70 [25-150] mm 3 ), than in the statin group (15 [−57.5-90) mm 3 , P < .05).Conclusions: 3DUS can be an effective tool to observe the development of carotid plaques and the effect of statin treatment.
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