氧化应激对多囊卵巢综合征患者体外受精-胚胎移植结局的影响

目的探讨接受体外受精-胚胎移植(IVF-ET)的多囊卵巢综合征(PCOS)患者卵泡液中相关氧化应激指标的水平,并分析氧化应激状态对IVF结局的影响。方法募集进行IVF助孕的PCOS患者25例为PCOS组,因单纯输卵管因素行IVF治疗的患者23例为对照组,收集取卵日清亮卵泡液,检测多种氧化应激相关指标:脂质过氧化产物丙二醛(MDA)、晚期氧化蛋白产物(AOPP)、总抗氧化能力(TAC)、经典的酶类抗氧化物超氧化物歧化酶(SOD)、卵泡液抑制羟自由基(·OH)产生的能力、抗氧化辅酶Q(CoQ10)、还原型及氧化型谷胱甘肽(GSH、GSSG),并分析各项指标与IVF结局的关系。结果与对照组相比,PCOS组卵泡液GSH/GSSG较低,差异有统计学意义(P=0.036);PCOS组宫内妊娠率(35.29%)显著低于对照组(71.43%)(P=0.026);其他指标两组间无显著性差异(P0.05)。结论 PCOS患者卵泡液内存在GSH/GSSG比值异常的氧化应激状态,并可能影响其IVF-ET的临床结局。     

治疗中期的帕金森病患者辅助练习医疗气功前后认知电位P300变化观察

目的:探讨帕金森病患者在临床治疗前后辅助练习医疗气功认知电位P300的变化。方法:使用丹麦DantecConcertoSEEG-16道电生理仪器以及“听觉靶-非靶刺激序列”为诱发条件,对33例药物治疗中期的帕金森病患者作医疗气功辅助治疗3个月,观察练习医疗气功前后的P300电位的变化。结果:帕金森病组P300与正常对照组存在多项指标差异,P3潜伏期延迟尤甚。帕金森病组功前靶潜伏期P2(197±25)ms,N2(258±25)ms,P3(348±28)ms,正常对照组上述指标分别为(171±31),(235±27)ms,(313±25)ms;帕金森病组功前非靶潜伏期N1(129±27)ms,P2(226±26)ms,正常对照组上述指标分别为(99±12),(200±33)ms;帕金森病组功前靶波幅P2(4.5±1.8)μV,P3(7.8±1.7)μV,正常对照组上述指标分别为(6.2±2.7),(5.3±2.9)μV,统计学处理以上指标差异均达显著性或极显著性意义(P<0.05或<0.01)。练习医疗气功后其N2、P3潜伏期缩短的同时犤靶潜伏期N2正常对照组(235±27)ms,帕金森病组功前(258±25)ms,功后(240±21)ms,F值7.5,P<0.05;靶潜伏期P3正常对照组(313±25)ms,帕金森病组功前(348±28)ms,功后(323±25)ms,F=14.1,P<0.01〗,其临床症状也获得改善。结论:帕金森病患者有认知功能改变,在药物治疗的同时,辅助医疗气功治疗可使其获得改善。     

A way to improve the reproducibility of measurements of myocardial velocity gradients

BACKGROUND: A peak negative myocardial velocity gradient (MVG) across the left ventricular wall is an important indicator of diastolic performance. The reproducibility of MVG measurements by color M-Mode tissue Doppler imaging (TDI) is still unsatisfactory, restraining its use in clinical practice. Aim of the study was to improve the reproducibility of measurements of MVG. METHODS: The peak diastolic MVG of left ventricular posterior wall was determined in 50 consecutive patients by two investigators in two ways: (1) using directly standard anatomic color M-Mode TDI and (2) by the same technique, but guided by a preliminary MVG estimation with pulsed TDI using four measurement sets within the ventricular wall. RESULTS: The interobserver agreement limits of the combined method [-0.78 s(-1) (95% CI: -0.95 to -0.6 s(-1)) to 0.57 s(-1) (95% CI: 0.4-0.75 s(-1))] were clearly superior to those shown by color M-Mode TDI without B-Mode pre-assessment [-1.35 s(-1) (95% CI: -1.72 to -0.98 s(-1)) to 1.5 s(-1) (95% CI: 1.13-1.87 s(-1))]. CONCLUSIONS: An initial estimation by pulsed TDI is useful to achieve a clinically acceptable reproducibility of MVG measurements.     

压力支持通气在小儿先心病术后的应用

15例小儿先心病室间隔缺损伴肺动脉高压和四联症纠治术后采用压力支持通气(PSV)方法辅助呼吸。术后随着呼吸机的压力支持逐渐降低,心率、血压、左房压和肺动脉压无明显变化,动脉血气均在正常范围内。气道压力、吸气和呼气阻力均下降,肺顺应性明显升高,提示;PSV可作为术后辅助呼吸应用,较间隙指令通气和同步间隙指令通气呼吸方法更舒适和协调,有利于术后早期撤离呼吸机。     

MSRE-PCR法检测卵巢癌组织中OPCML基因甲基化

目的 建立甲基化敏感性限制性内切酶-PCR(MSRE-PCR)法检All OPCML基因,探讨其在卵巢癌中的意义.方法 用亚硫酸氛钠修饰测序法检测5例卵巢癌组织及正常卵巢组织中OPCML基因甲基化,分别用MSRE-PCR和巢式甲基化特异性PCR(MSP)检测组织DNA中OPCML基因甲基化发生率.结果 DNA序列中存在...     

The effect of kinesio tape on neuromuscular activity of peroneus longus

Background: Functional ankle instability is the result of sensorimotor or structural deficits. The commonly used kinesio tape (KT) is supposed to have a positive influence on sensorimotor functions. Methods: Eight women and two men (mean ± SD, age 24.4 ± 3.3 years) with functional ankle instability with recurrent ankle sprains ran downhill on a treadmill (3.3 m/s and a negative slope of 5°). The first trial was without KT, the second with KT on the peroneus longus (PL) muscle. Neuromuscular activity was measured using surface electromyography for 15 seconds. Sensation of giving way was assessed with a visual analog scale (VAS). Comparisons were made between measurements with and without KT using the Wilcoxon rank sum test. The level of significance was set at P ≤ 0.05. Results: None of the chosen parameters for preactivation, reflex activation, or total activation showed statistically significant differences between the two trials (P > 0.05). The mean values for the sensation of giving way were lower with KT (VAS, median 1.2, range 0–2.8) than without (VAS, median 1.8, range 0–3.9), but did not reach statistical significance (P = 0.102) or clinical relevance. Conclusion: KT in participants with functional ankle instability (FAI) seems to have no effect on the neuromuscular activity of PL and sensation of giving way during downhill running.     

经阴道卵巢良性肿瘤切除术的临床研究

目的探讨经阴道行卵巢良性肿瘤切除术的临床效果和安全性。方法对68例要求保留子宫的卵巢良性肿瘤患者实施经阴道穹隆行卵巢肿瘤切除术。对患者手术时间、出血量、手术并发症、住院时间、手术效果等进行分析并行统计学处理。结果所有患者均成功完成手术，平均手术时间（39±11）min，平均出血量（60±10）ml，切除肿瘤直径4—12cm，无一例膀胱或直肠损伤发生。结论与传统开腹手术和腹腔镜手术相比，经阴道行卵巢良性肿瘤切除术具有创伤小、恢复快、住院时间短、无腹部疤痕、医疗费用低等优点。     

亚健康失眠人群脑内神经递质活动的脑电超慢涨落图表现

目的:探讨亚健康失眠人群的脑电超慢涨落图(EFG)表现。方法:应用EFG分析仪检测亚健康失眠人群的脑内神经递质活动变化情况及其脑功能状态表现。结果:脑内神经递质’-氨基丁酸、谷氨酸、5-羟色胺、乙酰胆碱、去甲肾上腺素及多巴胺的实测值都低于正常参考值,差异均具有显著性(P<0.05)。脑功能状态指数中的运动指数、兴奋抑制指数的实测值都高于正常参考值,差异均具有显著性(P<0.01),而血管舒缩指数的实测值则稍高于正常参考值,但差异无显著性(P>0.05)。结论:亚健康失眠者脑内主要神经递质均明显降低,其脑功能状态存在不同程度的异常。     

L-精氨酸对严重腹腔感染大鼠肠屏障功能的影响

目的　探讨L 精氨酸对严重腹腔感染大鼠肠屏障功能的影响。方法　SD大鼠 90只 ,随机分成对照组、感染组和精氨酸组 ,每组 30只。对照组仅行单纯剖腹手术 ;感染组采用盲肠结扎加穿孔 (CLP)手术制作严重腹腔感染模型 ;精氨酸组行CLP后每天添加L 精氨酸饮食 [0 2 6 4g/ (kg·d) ]。各组术后 1、2、 4d分别取肠黏膜行病理学观察、增殖细胞核抗原 (PCNA)指数测定、血细菌培养和血浆内毒素水平测定。结果　精氨酸组较感染组小肠黏膜病理性损害明显减轻。感染组术后 2、 4d血浆内毒素水平明显高于精氨酸组 ,分别是 (1 4 2± 0 10 )EU/mlvs (1 14± 0 11)EU/ml,(1 94± 0 0 7)EU mlvs (1 5 8± 0 14 )EU/ml,P <0 0 1。精氨酸组术后 2d血细菌阳性率明显低于感染组 (10 %vs 30 % ,P <0 0 1)。感染组PCNA指数先升高 ,后下降 ,而精氨酸组 4d内下降不明显。结论　当严重腹腔感染导致肠屏障功能障碍时 ,L 精氨酸有促进肠黏膜损伤修复、维护肠屏障功能的作用     

Opioid medication and driving ability

In many European countries the use of opioids for long‐term treatment of nonmalignant pain has dramatically increased during the last decade in order to improve the patient's quality of life, to allow an active social life and the return to work. In modern society, driving is regarded as an essential activity of daily living. Since opioids are centrally acting drugs that may interfere with the ability of safely driving a motor vehicle, the question arises of whether or not and on which conditions patients under continuous opioid medication may be considered fit to drive. In this article the evidence from recent studies of opioid effects on driving ability of patients is reviewed. Based on these data, the prerequisites and restrictions for driving under chronic opioid medication are outlined and practical guidelines are proposed.