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991.
Jia-Wei Zhou Yun-Hua Mao Yang Liu Hai-Tao Liang Chandni Chandur Samtani Yue-Wu Fu Yun-Lin Ye Gang Xiao Zi-Ke Qin Cun-Dong Liu Jian-Kun Yang Qi-Zhao Zhou Wen-Bin Guo Kang-Yi Xue Shan-Chao Zhao Ming-Kun Chen 《Asian journal of andrology》2021,(4):409-414
Accurate methods for identifying pelvic lymph node metastasis(LNM)of prostate cancer(PCa)prior to surgery are still lacking.We aimed to investigate the predicti... 相似文献
992.
目的以健康家兔为实验对象研究抗癌药羟喜树碱的毒性作用与剂量的相关性,为进一步对羟喜树碱毒性作用的防治研究提供参考。方法选择新西兰兔,经耳廓静脉连续推注羟喜树碱14d,观察不同剂量(2.1mg/kg组,1·05mg/kg组,0·52mg/kg组)对家兔免疫功能、肾脏、肝脏和心脏的毒性作用及生化指标的变化。结果三组WBC,RBC,IgG,IgM,AST,CK0·52mg/kg组,LDH2·1mg/kg组均较用药前明显下降(P<0·05和0·01);ALT则显著增高(P<0·01)用药后21d时PLT与LDH1·5mg/kg组较用药前明显下降(P<0·05和0·01)。用药后14,21d时LDH0·52mg/kg组较用药前明显下降(P<0·05和0·01)。结论羟喜树碱可引起家兔明显的肝组织、免疫功能、造血功能的损伤和轻度心脏毒性。但对其损伤机制有待进一步研究。 相似文献
993.
目的:本研究拟利用自主开发的腹腔镜模拟器进行实证研究,检验简易模拟器能否在腹腔镜技能教学中起到好的效果。方法:招募陆军军医大学2018级、2019级临床五年制本科学员24名,随机分为研究组与对照组,进行4周的模拟培训,每周3次,每次1学时。培训内容为基本的腹腔镜技能(fundamental laparoscopic s... 相似文献
994.
周国峰 《临床心身疾病杂志》2007,13(5):385-386
目的探讨急性心肌梗死患者溶栓治疗前后QT离散度及校正的QT离散度的变化与恶性心律失常、猝死等心脏事件发生率的相关性。方法将48例急性心肌梗死患者溶栓治疗后根据其是否再通分为两组,分别观察溶栓治疗前后的QT离散度及校正的QT离散度,记录其恶性心律失常、猝死等心脏事件的发生率,并进行统计分析。结果经溶栓治疗后急性心肌梗死患者再通者29例,未通者19例。溶栓再通组于再通后24h内QT离散度迅速降至正常水平,未通组于溶栓治疗后7d方逐渐接近正常水平。溶栓治疗第3d末,再通组QT离散度及校正的QT离散度与治疗前比较差异均有极显著性(t=2.825,2.719,P均<0.01),未通组与治疗前比较均无显著性差异(P>0.05),两组间比较差异均有极显著性(t=2.713,2.941,P均<0.01)。心脏事件发生组QT离散度及校正的QT离散度均极显著高于未发生组(t=2.819,2.691,P均<0.01)。结论QT离散度与心肌梗死后局部心肌复极电活动的不均一性有关;QT离散度及校正的QT离散度越大,恶性心律失常发生率越高。 相似文献
995.
目的探讨肝硬化合并肠功能紊乱的有效治疗方法。方法将50例肝硬化合并肠功能紊乱患者,随机分成治疗组(26例)与对照组(24例),治疗组在对照组治疗方案的基础上给予口服贝飞达、双迪28d,同时给予心理干预治疗。观察两组治疗前后临床症状及主要的肝功能指标。结果对照组肠道功能改善总有效率70%,治疗组总有效率92%,治疗组疗效优于对照组(P<0.05)。两组患者治疗后主要肝功能指标均明显改善,治疗组治疗后ALT、T-BiL值低于对照组(P<0.05)。结论肝硬化合并肠功能紊乱的患者给予微生态制剂、肠动力药及心理干预治疗可有效改善患者临床症状,并降低肝功能指标。 相似文献
996.
997.
目的研究AT1受体拮抗剂缬沙坦对正常大鼠心室肌细胞L-钙电流(Ica-L)的影响。方法采用全细胞膜片钳技术,观察0.4μmol/L的缬沙坦引起单个大鼠心室肌细胞L型钙通道电流变化。结果0.4μmol/L缬沙坦使正常大鼠心室肌细胞L型钙电流峰值明显降低(P<0.01),I-V曲线上移,但不改变其激活电位、峰值电位和反转电位。不影响通道稳态激活曲线,使稳态失活曲线左移。结论0.4μmol/L缬沙坦可直接阻断大鼠心室肌细胞L型钙通道,改变心室肌细胞的电生理特性,可能是其抗心律失常的机制之一。 相似文献
998.
Zhao Hu Feixiang Zhou Atipatsa Chiwanda Kaminga Huilan Xu 《Investigative ophthalmology & visual science》2022,63(5)
PurposeTo evaluate the potential causal associations between type 2 diabetes and fasting glucose and HbA1c levels and the risk of primary open-angle glaucoma (POAG) in European and East Asian populations.MethodsWe selected genetic variants (P < 5 × 10−8) for type 2 diabetes (898,130 Europeans; 433,540 East Asians), fasting glucose, and HbA1c (196,991 Europeans; 36,584 East Asians) from three meta-analyses of genome-wide association studies (GWAS). The GWAS for POAG provided summary statistics (192,702 Europeans; 46,523 East Asians). Mendelian randomization (MR) analysis was accomplished using the inverse variance–weighted method, weighted-median method, MR Egger method, and MR-Pleiotropy RESidual Sum and Outlier test.ResultsGenetically predicted type 2 diabetes was potentially positively associated with POAG in the European ancestry (body mass index [BMI]–unadjusted: odds ratio [OR] = 1.07, 95% confidence interval [CI], 1.01–1.14, P = 0.028; BMI-adjusted: OR = 1.07, 95% CI, 1.01–1.15, P = 0.035), but not in the East Asian ancestry (BMI-unadjusted: OR = 1.01, 95% CI, 0.95–1.06, P = 0.866; BMI-adjusted: OR = 1.00, 95% CI, 0.94–1.05, P = 0.882). There was no evidence to support a causal association of fasting glucose (European: OR = 1.19, P = 0.157; East Asian: OR = 0.94, P = 0.715) and HbA1c (European: OR = 1.27, P = 0.178; East Asian: OR = 0.85, P = 0.508) levels with POAG.ConclusionsThe causal effect of type 2 diabetes on the risk of POAG is different in European and East Asian populations. The point estimates of fasting glucose and Hb1Ac with POAG are large but not statistically significant, which prompts the question of statistical power. 相似文献
999.
Aluminum alloy (Al6061-T6) is an alloy with strong corrosion resistance, excellent disassembly, and moderate strength, which is widely used in the fields of construction, automobile, shipping, and aerospace manufacturing. Researching on the influence of machining precision and surface quality on the micro-milling process of thin-walled structures of Al6061 is highly significant. Combined with the two simulations (DEFORM-3D simulation and interactive finite element numerical simulation (FEM)) and milling experimental verification, the deformations, errors, and surface quality of milling thin-walled Al6061 were analyzed. The simulations and experimental results show that the deformation of milling a micro thin-walled structure was caused by the vertical stiffness of the thin-walled structure and the cutting force. Surface micromorphology further characterized and showed a poorer quality area, top burr, and concave defects, which directly affect machining quality. It is necessary to improve the surface quality, reduce the surface defects, and increase the stiffness at the top of thin-walled structures in future work. 相似文献
1000.
Ya Xiao Xiaona Wang Yue Li Fengsai Li Haiyuan Zhao Yilan Shao Liu Zhang Guojie Ding Jiaxuan Li Yanping Jiang Wen Cui Zhifu Shan Han Zhou Li Wang Xinyuan Qiao Lijie Tang Yijing Li 《Viruses》2022,14(5)
Porcine epidemic diarrhea (PED), characterized by diarrhea, vomiting, and dehydration, is an acute enteric infectious disease of pigs. The disease is caused by porcine epidemic diarrhea virus (PEDV), which infects the intestinal mucosal surface. Therefore, mucosal immunization through the oral route is an effective method of immunization. Lactic acid bacteria, which are acid resistant and bile-salt resistant and improve mucosal immunity, are ideal carriers for oral vaccines. The S1 glycoprotein of PEDV mediates binding of the virus with cell receptors and induces neutralizing antibodies against the virus. Therefore, we reversely screened the recombinant strain pPG-SD-S1/Δupp ATCC 393 expressing PEDV S1 glycoprotein by Lactobacillus casei deficient in upp genotype (Δupp ATCC 393). Mice were orally immunized three times with the recombinant bacteria that had been identified for expression, and the changes of anti-PEDV IgG and secreted immunoglobulin A levels were observed over 70 days. The results indicated that the antibody levels notably increased after oral administration of recombinant bacteria. The detection of extracellular cytokines on the 42nd day after immunization indicated high levels of humoral and cellular immune responses in mice. The above results demonstrate that pPG-SD-S1/Δupp ATCC 393 has great potential as an oral vaccine against PEDV. 相似文献