目的研究光感基因技术对脊髓栓系神经源性膀胱组织及其受体P2X1、P2X3的影响。方法将60只未成年SD雌性大鼠(尿流动力学检查无异常)随机分组,建立脊髓栓系神经源性膀胱动物模型,分为对照组(n=15)、脊髓栓系无光感基因组(n=21)、脊髓栓系...目的研究光感基因技术对脊髓栓系神经源性膀胱组织及其受体P2X1、P2X3的影响。方法将60只未成年SD雌性大鼠(尿流动力学检查无异常)随机分组,建立脊髓栓系神经源性膀胱动物模型,分为对照组(n=15)、脊髓栓系无光感基因组(n=21)、脊髓栓系有光感基因组(n=21)。HE染色观察膀胱组织的病理学改变,Real time PCR和Western blotting检测膀胱逼尿肌受体P2X1、P2X3在分子和蛋白水平的表达情况。结果在建模过程中,诱发电位监测发现术中有3只动物脊髓受损,其余动物建模成功。与脊髓栓系无光感基因组比较,在HE染色结果中脊髓栓系有光感基因组逼尿肌细胞形态大小相对均一,肌纤维排列较有序,趋近于对照组。Real time PCR和Western blotting检测结果显示,与对照组比较,脊髓栓系无光感基因组P2X1、P2X3 mRNA和相对蛋白表达量均升高,差异有统计学意义(P<0.05);而经蓝光照射一定时间后,脊髓栓系有光感基因组中两种受体mRNA和相对蛋白表达量均降低,与脊髓栓系无光感基因组比较,差异有统计学意义(P<0.05);与对照组比较,差异无统计学意义(P>0.05)。结论光感基因技术对脊髓栓系神经源性膀胱组织及其受体P2X1、P2X3有一定的调控作用。展开更多
AIM To determine if activation of the ATP-gated P2X7 receptor channel induces phosphatidylserine(PS)exposure in erythrocytes from multiple dog breeds.METHODS Peripheral blood was collected from 25 dogs representing 13...AIM To determine if activation of the ATP-gated P2X7 receptor channel induces phosphatidylserine(PS)exposure in erythrocytes from multiple dog breeds.METHODS Peripheral blood was collected from 25 dogs representing 13 pedigrees and seven crossbreeds.ATP-induced PS exposure on canine erythrocytes in vitro was assessed using a flow cytometric Annexin V binding assay.RESULTS ATP induced PS exposure in erythrocytes from all dogs studied.ATP caused PS exposure in a concentrationdependent manner with an EC50 value of 395μmol/L.The non-P2X7 agonists,ADP or AMP,did not cause PS exposure.The P2X7 antagonist,AZ10606120,but not the P2X1 antagonist,NF449,blocked ATP-induced PS exposure.CONCLUSION The results indicate that ATP induces PS exposure in erythrocytes from various dog breeds and that this process is mediated by P2X7 activation.展开更多
文摘目的研究光感基因技术对脊髓栓系神经源性膀胱组织及其受体P2X1、P2X3的影响。方法将60只未成年SD雌性大鼠(尿流动力学检查无异常)随机分组,建立脊髓栓系神经源性膀胱动物模型,分为对照组(n=15)、脊髓栓系无光感基因组(n=21)、脊髓栓系有光感基因组(n=21)。HE染色观察膀胱组织的病理学改变,Real time PCR和Western blotting检测膀胱逼尿肌受体P2X1、P2X3在分子和蛋白水平的表达情况。结果在建模过程中,诱发电位监测发现术中有3只动物脊髓受损,其余动物建模成功。与脊髓栓系无光感基因组比较,在HE染色结果中脊髓栓系有光感基因组逼尿肌细胞形态大小相对均一,肌纤维排列较有序,趋近于对照组。Real time PCR和Western blotting检测结果显示,与对照组比较,脊髓栓系无光感基因组P2X1、P2X3 mRNA和相对蛋白表达量均升高,差异有统计学意义(P<0.05);而经蓝光照射一定时间后,脊髓栓系有光感基因组中两种受体mRNA和相对蛋白表达量均降低,与脊髓栓系无光感基因组比较,差异有统计学意义(P<0.05);与对照组比较,差异无统计学意义(P>0.05)。结论光感基因技术对脊髓栓系神经源性膀胱组织及其受体P2X1、P2X3有一定的调控作用。
基金The Centre for Medical and Molecular Bioscience(University of Wollongong)the American Kennel Club Canine Health Foundation
文摘AIM To determine if activation of the ATP-gated P2X7 receptor channel induces phosphatidylserine(PS)exposure in erythrocytes from multiple dog breeds.METHODS Peripheral blood was collected from 25 dogs representing 13 pedigrees and seven crossbreeds.ATP-induced PS exposure on canine erythrocytes in vitro was assessed using a flow cytometric Annexin V binding assay.RESULTS ATP induced PS exposure in erythrocytes from all dogs studied.ATP caused PS exposure in a concentrationdependent manner with an EC50 value of 395μmol/L.The non-P2X7 agonists,ADP or AMP,did not cause PS exposure.The P2X7 antagonist,AZ10606120,but not the P2X1 antagonist,NF449,blocked ATP-induced PS exposure.CONCLUSION The results indicate that ATP induces PS exposure in erythrocytes from various dog breeds and that this process is mediated by P2X7 activation.
