Intermittent Parathyroid Hormone Alters Gut Microbiota in Ovariectomized Osteoporotic Rats

ObjectiveTo investigate the effect of intermittent parathyroid hormone (PTH) on gut microbiota (GM) in ovariectomized (OVX) osteoporotic rats.MethodsThirty female Sprague–Dawley rats were divided into three groups: sham‐operation (SHAM) group, OVX group and PTH treatment group. After 3 months of treatment, the femurs, serum and feces were acquired for micro‐CT, biochemical analysis and 16S rRNA sequencing, respectively. For 16S rRNA sequencing, after raw reads filtrated and chimera sequences removed, the clean reads were obtained. According to these clean reads, the operational taxonomic units (OTUs) were clustered. Venn diagram analysis was conducted to explore common and unique GM among the three groups. The α‐diversity analysis including Shannon and Simpson indexes were used to evaluate the richness and diversity of the GM. The β‐diversity analysis was performed to estimate the structure of GM. The metabolic function was predicted by Tax4Fun analysis.ResultsWith micro‐CT and biochemical analysis, significant improvements were found in the PTH group compared with the OVX group. In Venn diagram analysis, more unique OTUs were found in the SHAM and PTH groups than the OVX group. According to the rank abundance curve, the SHAM and PTH groups had similar richness and evenness, which were higher than the OVX group. Simpson and Shannon indexes were higher in the SHAM and PTH groups compared with the OVX group, indicating that the SHAM and PTH groups had higher microbiota complexity than the OVX group. In β‐diversity analysis, apparent separation was found in the OVX group from the PTH and SHAM groups, which suggested that osteoporosis is the critical factor influencing the GM composition and PTH treatment and can restore the structure of GM. Compared with the OVX group, treatment with PTH increased the abundances of GM which were reported to increase bone mass, such as Lactobacillus_reuteri, Muribaculaceae, Ruminococcaceae, and Clostridia, and inhibited the relative abundance of Rikenellaceae, which was reported to be potentially related to osteoporosis. GM function analysis showed that PTH could promote butyrate synthesis. In Tax4Fun analysis, the function of butanoate metabolism is more vital in the PTH group than the OVX and SHAM groups, suggesting PTH treatment could regulate microbial metabolic function, including butanoate metabolism.ConclusionIntermittent PTH can interact with GM through increasing the abundance of probiotics and reducing the abundance of the pathogenic bacteria to enhance the bone mass.     

单腔、双腔气管插管在微创食管癌根治术中近期效果

目的比较单腔气管插管和双腔气管插管在微创食管癌根治术中近期效果的差异。方法回顾性分析福建省立医院胸外科2014年1月~2015年12月接受微创Mckeown术的94例食管癌患者的临床资料。结果单腔插管组术中出血显著少于双腔插管组（205.6±62.1 mL vs 277.9±219.9 mL,P=0.028）,左喉返神经旁淋巴结清扫数（3.4±5.5 vs 1.2±2.5,P=0.043）和纵隔淋巴结清扫数（19.1±14.2 vs 13.7±9.2,P=0.037）显著多于双腔插管组。两组手术时间、右喉返神经旁淋巴结清扫数、淋巴结清扫总数、平均住院时间、平均住ICU时间及术后并发症的发生率的差异无统计学意义。结论单腔气管插管具有费用低、操作简单、术野显露好的特点,有助于纵隔淋巴结的清扫和减少术中出血,其近期效果优于双腔支气管插管。     

136例老年阑尾炎术后患者中医辨证施治与护理对比研究

目的:观察老年阑尾炎术后患者实施中医辨证施治与护理的临床疗效。方法:将136例老年阑尾炎术后患者随机分为2组各68例。对照组采用常规抗感染、补液、补充电解质、维持酸碱平衡等西医疗法,治疗组在对照组西医治疗的基础上加用中医辨证施治与护理,即中药口服、中药散剂穴位贴敷及耳穴压豆、穴位按压。分别观察2组患者术后下床活动时间、住院时间、中医证候积分、并发症发生率及治疗满意度情况并进行对比。结果:与对照组相比,治疗组术后下床活动时间、住院时间均明显缩短(P<0.05)。2组治疗后中医证候积分均下降,治疗组改善优于对照组,差异有统计学意义(P<0.05)。与对照组相比,治疗组并发症发生率显著降低(P<0.05)。与对照组相比,治疗组满意度升高,差异无统计学意义(P>0.05)。结论:老年阑尾炎术后给予中医辨证施治与护理干预,个体化的治疗,疗效优于单纯西医治疗。     

神经再生素对皮层细胞基因表达影响的基因芯片研究

目的：采用基因芯片技术,观察神经再生素对体外培养的胚鼠大脑皮质细胞基因表达的影响。方法：取ICR胚鼠（15d)大脑皮层细胞,无血清培养。实验组加入神经再生素（2μg/ml）,对照组加入等量基础培养液。培养6h后,抽提实验组和对照组皮层细胞总RNA,经反转录分别用Cy5、Cy3荧光标记成cDNA探针。将荧光标记的cDNA与MGEC－40s基因表达谱芯片杂交,芯片扫描、数据处理。结果：实验组与对照组大脑皮质细胞出现64条差异性表达的基因。呈现上调的基因有：钙调素结合蛋白、锌指蛋白激酶、核糖体蛋白等基因;下调基因有：抑制细胞分裂因子等基因。结论：神经再生素可作用于体外培养的胚鼠大脑皮层细胞,从基因调控水平促进脑细胞生长。     

对肾功能不全者调整给药方案的简易计算

患者肾功能不良时,对常用的肾毒性氨基糖苷类抗生素药物给药方案应进行相应的调整。     

冠状动脉慢性闭塞病变介入治疗成功的因素及其对预后的影响

目的　探讨影响冠状动脉 (冠脉 )慢性闭塞病变介入治疗成功的因素及其对预后的影响。方法　在 2 0 0 0年 6月至 2 0 0 3年 4月间对 5 2例冠脉慢性闭塞病变患者行经皮冠脉介入治疗 (PCI) ,其中 30例闭塞冠脉成功开通 (开通组 ) ,2 2例闭塞冠脉无法开通 (未开通组 )。比较两组的临床特点和预后。结果　与未开通组比 ,开通组高血压的发生率 (5 3%对 2 3% )较高 (P <0 .0 5 )。推测的血管堵塞时间较短 (P <0 .0 1) ,总胆固醇含量较低 ,分别为 (4 .8± 0 .85 )和 (5 .6± 1.5 )mmol/L(P <0 .0 5 ) ,闭塞病变呈平齐截断或有桥侧支或在分支开口附近或病变长度较长者比例较低 (17%对 4 5 % ,P <0 .0 5 ) ;随访期无胸痛胸闷者比例较高 (73%对 5 0 % ,P <0 .0 5 ) ;再次PCI ,外科冠脉旁路手术和再次住院的联合终点少 (13%对 36 % ,P <0 .0 5 )。结论　冠脉慢性闭塞病变的PCI成功率与推测的堵塞时间和闭塞病变的形态有关。闭塞病变开通者临床预后较好