Introduction:Myocardial ischemia-reperfusion(IR)injury has received widespread attention due to its damaging effects.Electroacupuncture(EA)pretreatment has preventive effects on myocardial IR injury.SLC26A4 is a Na+in...Introduction:Myocardial ischemia-reperfusion(IR)injury has received widespread attention due to its damaging effects.Electroacupuncture(EA)pretreatment has preventive effects on myocardial IR injury.SLC26A4 is a Na+independent anion reverse transporter and has not been reported in myocardial IR injury.Objectives:Tofind potential genes that may be regulated by EA and explore the role of this gene in myocardial IR injury.Methods:RNA sequencing and bioinformatics analysis were performed to obtain the differentially expressed genes in the myocardial tissue of IR rats with EA pretreatment.Myocardial infarction size was detected by TTC staining.Serum CK,creatinine kinase-myocardial band,Cardiac troponin I,and lactate dehydrogenase levels were determined by ELISA.The effect of SLC26A4 on cardiomyocyte apoptosis was explored by TUNEL staining and western blotting.The effects of SLC26A4 on inflammation were determined by HE staining,ELISA,and real-time PCR.The effect of SLC26A4 on the NF-κB pathway was determined by western blotting.Results:SLC26A4 was up-regulated in IR rats but downregulated in IR rats with EA pretreatment.Compared with IR rats,those with SLC26A4 knockdown exhibited improved cardiac function according to decreased myocardial infarction size,reduced serum LDH/CK/CK-MB/cTnI levels,and elevated left ventricular ejection fraction and fractional shortening.SLC26A4 silencing inhibited myocardial inflammation,cell apoptosis,phosphorylation,and nuclear translocation of NF-κB p65.Conclusion:SLC26A4 exhibited promoting effects on myocardial IR injury,while the SLC26A4 knockdown had an inhibitory effect on the NF-κB pathway.These results further unveil the role of SLC26A4 in IR injury.展开更多
目的探讨广东省大前庭水管综合征(enlargement of vestibular aqueduct syndrome,EVAS)患者SLC26A4基因位点突变及相关听力表型,为研究EVAS发病机制提供参考。方法采用基因芯片法对59例EVAS患儿进行SLC26A4基因IVS7-2A>G:2168A>G...目的探讨广东省大前庭水管综合征(enlargement of vestibular aqueduct syndrome,EVAS)患者SLC26A4基因位点突变及相关听力表型,为研究EVAS发病机制提供参考。方法采用基因芯片法对59例EVAS患儿进行SLC26A4基因IVS7-2A>G:2168A>G位点检测,并行颞骨CT影像学检查。结果59例EVAS患者中21例(35.59%)为SLC26A4双等位基因(纯合或复合杂合)突变,其中16例为IVS7-2A>G纯合突变,2例为2168A>G纯合突变,3例为IVS7-2A>G、2168A>G复合杂合突变,这21例CT均显示为双侧前庭水管扩大或其他内耳畸形;38例为SLC26A4单等位基因突变,其中31例为IVS7-2A>G杂合突变,7例为2168A>G杂合突变,这38例中4例为前庭水管扩大伴Mondini畸形,2例表型正常,其余均为双侧前庭水管扩大。59例患儿均表现为重度-极重度聋。结论本组EVAS患者中SLC26A4基因IVS7-2A>G位点的突变发生率最高,其次为2168A>G;均表现为双耳重度或极重度感音神经性听力损失。展开更多
研究表明,大前庭水管综合征（enlargement of vestibular aqueduct,EVA）和Pendred综合征（pendrend syndrome,PS）的发病与SLC26A4基因密切相关。SLC26A4基因最先由Everett等[1]在一个PS家系中定位克隆,并被命名为PDS基因。后续研究发...研究表明,大前庭水管综合征（enlargement of vestibular aqueduct,EVA）和Pendred综合征（pendrend syndrome,PS）的发病与SLC26A4基因密切相关。SLC26A4基因最先由Everett等[1]在一个PS家系中定位克隆,并被命名为PDS基因。后续研究发现该基因突变也可引起非综合征型聋（DFNB4）[2]。由于PDS基因与溶质蛋白家族SLC26其他成员的结构和功能类似,展开更多
基金This study was funded by the Joint Guidance Project of Heilongjiang Provincial Natural Science Foundation of China(LH2023H063)the Scientific Research Project of Academic Thought Inheritance of Chinese Medicine Great Master of Heilongjiang Provincial Administration of Traditional Chinese Medicine(ZHY2023-151).
文摘Introduction:Myocardial ischemia-reperfusion(IR)injury has received widespread attention due to its damaging effects.Electroacupuncture(EA)pretreatment has preventive effects on myocardial IR injury.SLC26A4 is a Na+independent anion reverse transporter and has not been reported in myocardial IR injury.Objectives:Tofind potential genes that may be regulated by EA and explore the role of this gene in myocardial IR injury.Methods:RNA sequencing and bioinformatics analysis were performed to obtain the differentially expressed genes in the myocardial tissue of IR rats with EA pretreatment.Myocardial infarction size was detected by TTC staining.Serum CK,creatinine kinase-myocardial band,Cardiac troponin I,and lactate dehydrogenase levels were determined by ELISA.The effect of SLC26A4 on cardiomyocyte apoptosis was explored by TUNEL staining and western blotting.The effects of SLC26A4 on inflammation were determined by HE staining,ELISA,and real-time PCR.The effect of SLC26A4 on the NF-κB pathway was determined by western blotting.Results:SLC26A4 was up-regulated in IR rats but downregulated in IR rats with EA pretreatment.Compared with IR rats,those with SLC26A4 knockdown exhibited improved cardiac function according to decreased myocardial infarction size,reduced serum LDH/CK/CK-MB/cTnI levels,and elevated left ventricular ejection fraction and fractional shortening.SLC26A4 silencing inhibited myocardial inflammation,cell apoptosis,phosphorylation,and nuclear translocation of NF-κB p65.Conclusion:SLC26A4 exhibited promoting effects on myocardial IR injury,while the SLC26A4 knockdown had an inhibitory effect on the NF-κB pathway.These results further unveil the role of SLC26A4 in IR injury.
文摘目的探讨广东省大前庭水管综合征(enlargement of vestibular aqueduct syndrome,EVAS)患者SLC26A4基因位点突变及相关听力表型,为研究EVAS发病机制提供参考。方法采用基因芯片法对59例EVAS患儿进行SLC26A4基因IVS7-2A>G:2168A>G位点检测,并行颞骨CT影像学检查。结果59例EVAS患者中21例(35.59%)为SLC26A4双等位基因(纯合或复合杂合)突变,其中16例为IVS7-2A>G纯合突变,2例为2168A>G纯合突变,3例为IVS7-2A>G、2168A>G复合杂合突变,这21例CT均显示为双侧前庭水管扩大或其他内耳畸形;38例为SLC26A4单等位基因突变,其中31例为IVS7-2A>G杂合突变,7例为2168A>G杂合突变,这38例中4例为前庭水管扩大伴Mondini畸形,2例表型正常,其余均为双侧前庭水管扩大。59例患儿均表现为重度-极重度聋。结论本组EVAS患者中SLC26A4基因IVS7-2A>G位点的突变发生率最高,其次为2168A>G;均表现为双耳重度或极重度感音神经性听力损失。
文摘研究表明,大前庭水管综合征（enlargement of vestibular aqueduct,EVA）和Pendred综合征（pendrend syndrome,PS）的发病与SLC26A4基因密切相关。SLC26A4基因最先由Everett等[1]在一个PS家系中定位克隆,并被命名为PDS基因。后续研究发现该基因突变也可引起非综合征型聋（DFNB4）[2]。由于PDS基因与溶质蛋白家族SLC26其他成员的结构和功能类似,
