简介:目的探讨缓激肽B1受体第3外显子1098A/G等位基因多态性在原发性女性高血压病患者中分布频率及其多态性与血管紧张素转换酶抑制剂(ACEI)降压疗效的关系.方法150名原发性女性高血压病患者给予卡托普利治疗4周,记录治疗前后的血压水平.采用聚合酶链反应(PCR)结合限制性内切酶检测缓激肽B1受体基因型.结果本研究中三种基因型AA、GA、GG频率分别为78.5%、19.6%、1.9%;ACEI治疗后AA和GA+GG基因型组收缩压分别下降(25.21±13.69)mmHg与(34.50±12.56)mmHg,二组间比较有统计学意义(P<0.05).结论缓激肽B1受体1098A/G多态性与原发性女性高血压患者服用ACEI类药物的收缩压降低相关,携带G等位基因的患者卡托普利降压疗效优于野生型携带者.
简介:目的建立高表达缓激肽受体(B2R)的大鼠胶质瘤模型,为研究缓激肽选择性开放血脑屏障的机制及解决目前临床应用中存在的问题提供必要的模型.方法①大鼠B2R的真核细胞的表达和其载体(prB2R)侵染C6胶质瘤细胞株;②Real-timeRT-PCR测定B2R的转录;③WesternBlot法测定B2R的表达水平.结果①大鼠胶质瘤细胞株C6高表达B2R;②Real-timeRT-PCR测定C6-B2R1和C6-B2R2克隆的B2R分别比C6对照高7.6和6.9倍;③C6-B2R1和C6-B2R2克隆的蛋白表达水平高于C6对照克隆的3.8和3.78倍.移植C6-B2R1肿瘤1周后的B2R表达水平高于C6对照肿瘤的3.6倍.结论高表达B2R的大鼠胶质瘤模型已被成功建立.
简介:生性乐观的小华,平时身体壮得像头牛。白天还和同伴们一起在绿菌场上奔跑,夜晚突然一睡不起,致使亲朋好友都惊愕不已,难以相信。后经医院的大夫尸检发现,小华猝死的原因主要是体内维生素B1缺乏所引起的。难道维生素B1缺乏也会引起猝死吗?要回答这个问题,有必要还是先了解一下维生素B1对人体健康的生理作用。现代医学认为,维生素B1具有维持循环、消化、神经和肌肉的正常生理功能,同时可抑制胆碱酯酶的活性,调整胃肠道的功能,参与糖的代谢,与人体的健康密切相关。倘若人体内缺乏维生素B1,就容易使机体内的丙酮酸氧化脱羧发生障碍,致使糖的氧化受阻,从而导致低血糖。医学
简介:AbstractBackground:Intracerebral hemorrhage (ICH) is fatal and detrimental to quality of life. Clinically, options for monitoring are often limited, potentially missing subtle neurological changes. Integrin β 1 (ITGB1) and β 3 (ITGB3) are the main components of integrin family receptors, which regulate the formation and stability of blood vessels. This study explored the relationship between the expression of ITGB1 and ITGB3 in intracerebral hemorrhage (ICH) to analyze their functional and clinical relevance.Methods:The expression of ITGB1 and ITGB3 in ICH was accomplished by immunohistochemical (IHC) staining and western blotting (WB) analysis, respectively.Results:Furthermore, the results demonstrated that ITGB1 was expressed in ICH tissues, but ITGB3 was not expressed in ICH tissues.Conclusions:In summary, the clinical progression of ICH was related to the expression of ITGB1. ITGB1 may be a potential biomarker and contribute to the treatment of ICH.
简介:WeinvestigateindetailtheeffectsofR-parityleptonnumberviolationonthedecay~↑b1→b~↑x1^0intheR-parityviolatingminimalsupersymmetricstandardmodel(Rp-MSSM)underthepresentexperimentalconstraintsonRpparameters.Inournumericalcalculationsweconsidertwocasesofinputparametersofthesquarkandsleptonsectors,MsquarkMslepton,forcomparison.TheresultsshowthattherelativeR-parityviolatingcorrectionisnotverysensitivetothemassofthelightestneutralino-0↑x1andthedegenerateR-parityviolatingcouplingparameterλ2′,butstronglydependsonMsquark,Mslepton,tanβandthedegenerateR-parityviolatingcouplingparameterλ1′.Therelativecorrectionisabout-4~3%andcanexceed-6%insomeregionofparameterspace.Therefore,preciseexperimentanalysesonthedecay~↑b1→b~↑x1^0mayprovideaprobeoftheR-parityviolation.