营养灌肠联合生物反馈治疗改道性结肠炎效果的研究

目的 探讨营养灌肠联合生物反馈治疗改道性肠炎的效果。方法 将96位患者按数字随机法分为三组,营养灌肠联合生物反馈训练为试验组1,生物反馈训练为试验组2,常规治疗患者为对照组,观察三组患者三个月肠镜结果对比、回纳术后排便次数、腹痛、排粘液便、治疗前后盆底肌力评估值。结果 试验组1临床疗效高于试验组2和常规治疗组（P<0.05）,试验组2临床疗效高于常规治疗组（P<0.05）,试验组1回纳术后并发症腹痛、粘液便、排便次数明显低于试验组2和对照组（P<0.05）,治疗后盆底肌力评估值试验组1和试验组2明显优于对照组（P<0.05）、试验组1和试验组2无明显差别（P>0.05）。肠镜下结果有无红斑肿胀、糜烂溃疡、炎性息肉试验组1明显优于试验组2和对照组（P<0.05）。结论 营养灌肠联合生物反馈能提高改道性肠炎的治疗效果,改善术后腹痛、排粘液便、排便次数增多症状,提高盆底肌力,减少红斑肿胀、糜烂溃疡、炎性息肉发生率,减少了远端肠管改道性结肠炎发生率。     

新型冠状病毒疫情在线防控的“华西项目化工作模式”探索与实践

目的探索"华西项目化工作模式"在新型冠状病毒(2019-nCoV)疫情在线防控工作中的应用价值。方法基于四川大学华西医院丰富的抗震救灾和项目管理经验,依托PDCA循环持续优化"华西项目化工作模式"。结果"华西项目化工作模式"可运用于新型冠状病毒(2019-nCoV)突发公共卫生事件,已建立快速反应工作闭环,整个项目组运行良好、系统运维稳定。结论"华西项目化工作模式"为疫情在线防控工作提供了工作路径,采用互联网+方式远程协作办公方式,有效促进疫情应急管理科学化,在疫情在线干预防控工作中起到了积极作用。     

大鼠软骨细胞与兔软骨细胞的培养与比较

目的 体外分离培养大鼠及兔膝关节软骨细胞,观察并比较两种软骨细胞的培养特点。方法 采用机械-酶消化法处理SD大鼠幼鼠和新西兰兔的软骨组织,传代培养,倒置显微镜观察细胞形态,细胞计数法测定生长曲线,实时定量PCR测定不同代数的软骨细胞Ⅱ型胶原与含血小板结合蛋白基序的解聚蛋白样金属蛋白酶5（a disintegrin and metalloproteinase with thrombospondin motifs 5, ADAMTS5）表达水平,甲苯胺蓝染色及Ⅱ型胶原酶免疫荧光染色对细胞进行鉴定。结果 原代培养大鼠软骨细胞12 h,内贴壁成多角形或不规则型,排列成“铺路石”状,培养3~5 d后进入快速增殖期,1周后进行细胞传代培养。兔软骨细胞相对贴壁缓慢,生长滞后。两类软骨细胞随着培养代数的增加,Ⅱ型胶原蛋白的mRNA表达量逐渐减少,ADAMTS5的表达逐代升高,表明随着培养代数的增加,软骨细胞活力逐渐下降。相同代数的大鼠软骨细胞活性较兔软骨细胞更高。甲苯胺蓝染色可见大鼠软骨细胞内成蓝色异染的糖胺多糖成分。不同波段的荧光激发下,Ⅱ型胶原酶免疫荧光染色可见大鼠原代培养的软骨细胞胞浆和胞膜呈清晰的绿色荧光,兔软骨细胞呈红色荧光,细胞核为明亮的蓝色荧光。结论 本实验通过比较大鼠及新西兰兔软骨细胞的培养与特点,证实随培养代数增加,软骨细胞活性逐渐降低,且相同代数大鼠软骨细胞较兔软骨细胞具备更高活性。     

Relationship between aryl hydrocarbon receptor and spermatogenic dysfunction in male patients with varicocele

The main purpose of this project is to verify whether there is a difference in the expression of aryl hydrocarbon receptor (AhR) between varicocele (VC) and normal male semen, and determine whether there is a connection with the parameters of semen analysis. The risk factors of infertility in patients with VC were also studied. Semen samples were collected for semen analysis and Western blot. Logistic regression was used to investigate the risk factors associated with infertility in patients with VC. Men with VC had lower AhR expression compared to healthy men; correlation analysis results showed that: AhR expression in patients with VC group was significantly positively correlated with sperm concentration and sperm motility; significantly negatively correlated with the diameter of spermatic veins during Valsalva and the percentage of abnormal sperm morphology; the research results of related risk factors show that the risk of infertility of patients with grade III is 1.67 times that of patients with grades I and II. For each unit of abnormal sperm morphology, the risk of infertility increases 1.04 times. Sperm concentration, total sperm viability and each unit the expression of AhR protein decreases the risk of infertility by 3%, 9% and 11% respectively.     

Adaptive optimal tracking control for multi-joint manipulator on space robot

This paper aims to address the tracking control problem for the multi-joint manipulator on a space robot subject to model uncertainties and external disturbances. A Gauss-Newton interactive optimization algorithm is used to obtain the desired joint angle for each joint. In order to formulate the optimization problem, the Denaait-Hartenberg (D-H) method is employed to describe the model of the multi-joint manipulator. Subsequently, an adaptive controller is developed to achieve tracking control, where controller parameters updated in real time are introduced to handle the nondeterminacy of the multi-joint manipulator. Moreover, a fuzzy control strategy is composed such that our designed controller is robust against the complex environment as well. The controller design is performed by means of the Lyapunov techniques. Meanwhile, its effectiveness is verified through numerical simulations. Finally, some concluding remarks close the paper.     

2型糖尿病肾病并发骨质疏松大鼠模型研究

目的构建2型糖尿病肾病并发骨质疏松大鼠模型。方法选用SD大鼠,通过喂养高糖高脂饲料4周后,予以链脲佐菌素(STZ 35 mg/kg)进行腹腔注射,继续喂养4周后观察血糖、尿量、尿蛋白及Ca、P等生化指标变化,通过双能X线测量骨密度以及进行生物力学检测骨强度,并取肾、骨组织进行病理检测。结果造模组在高糖高脂饲料喂养后,血糖、尿量及尿蛋白较正常组均逐渐升高,在第4周腹腔注射链脲佐菌素后,造模组的血糖、尿量及尿蛋白较正常组显著升高。在第8周时,造模组的血糖、尿量、尿蛋白及尿Ca、P均明显高于正常组,差异有统计学意义。造模组的骨密度及骨骼强度低于正常组。病理显示造模组大鼠出现肾脏肥大,肾小球毛细血管袢肥大,系膜基质增多肾脏病变以及骨小梁稀疏、变细、连续性中断等骨骼病变。结论通过腹腔注射链脲佐菌素联合8周高糖高脂饮食可建立2型糖尿病肾病并发骨质疏松的大鼠模型,该模型具有高糖、多尿、尿蛋白增加、骨密度下降以及肾小球病变和骨吸收增加的特点。     

微波透热治疗恶性肿瘤210例观察

应用微波透热治疗恶性肿瘤２１０例，近期疗效：原发癌９５例，临控１０例，显效３０例，临控显效率４２％；转移癌１１５例，临控１５例，显效３９例，临控显效率４７％。微波透热综合治疗可提高对放、化疗不敏感，常规治疗无效的难治愈恶性肿瘤的治疗效果。     

Long-term effects of pattern scan laser pan-retinal photocoagulation on diabetic retinopathy in Chinese patients: a retrospective study

AIM: To compare efficacy of coaxial microincisions (1.8 mm, 2.2 mm) and small incisions (3.0 mm) on phacoemulsification combined with trabeculectomy for primary angle-closure glaucoma (PACG) with cataract. METHODS: Ninety-six patients (96 eyes) with PACG and cataract were recruited and randomly divided into three groups between January 2015 and June 2017. Group A (3.0 mm incision), B (2.2 mm incision), and C (1.8 mm incision) comprised 30, 34 and 32 eyes respectively. All cases were treated with clear corneal incision phacoemulsification combined with trabeculectomy. Data including best corrected visual acuity (BCVA), corneal astigmatism, corneal endothelial cell counts (CECC), intraocular pressure (IOP), and complications were collected before the operation, and at postoperative 1d, 1 and 3mo. RESULTS: All the patients were successfully treated with surgery. The BCVA of groups B and C were significantly improved as compared to group A at postoperative 1d, 1 and 3mo (all P<0.05), but there was no difference between groups B and C at each time interval (all P>0.05). The corneal astigmatism of group A was statistically higher than that of group B (P=0.026); corneal astigmatism of group B was statistically higher than that of group C at postoperative 1d (P=0.006). The corneal astigmatism of group A at postoperative 3mo was significantly higher than that before operation (P=0.003). At postoperative 1 and 3mo, corneal astigmatism of groups B and C were significantly lower than that of group A (all P<0.05). The CECC in group B was significantly higher than that of group A (P=0.020), and CECC in group C was significantly higher than that of group B (P=0.034) at postoperative 1d. At postoperative 1 and 3mo, CECC of groups B and C were significantly higher than that of group A (all P<0.05). In each group, postoperative mean IOP at each time interval was significantly lower than preoperative IOP (all P<0.05). CONCLUSION: Coaxial microincision phacoemulsification combined with trabeculectomy for PACG with cataract has better curative efficacy in reducing postoperative corneal astigmatism and corneal endothelial cell injury than traditional small incision combined surgery, and the 1.8 mm microincision has better curative efficacy than 2.2 mm microincision in the early postoperative period.