目的 探索实体肿瘤内部不同区域的间质液压（IFP）分布的异质性。方法 通过建立新西兰大白兔的皮下浅肌层VX2移植瘤模型,通过超声造影观察肿瘤的大小、形状、血流灌注等成瘤情况,并在超声引导下通过针芯法（WIN法）测量41只荷瘤兔VX2移植瘤内部不同区域的IFP。结果 41只荷瘤兔的VX2移植瘤的中央IFP为（23.79±8.07） mmHg、肿瘤外周1/2IFP为（15.58±5.22）mmHg、肿瘤外周1/4IFP为（8.29±5.47）mmHg,IFP从中央到外周逐步降低（F=70.85,P<0.001）。结论 VX2移植瘤内不同区域的IFP存在异质性,即从中央到外周IFP呈梯度显著降低。

Objective To explore the heterogeneity of interstitial fluid pressure（IFP）distribution in different regions of solid tumors．Methods The model of VX2 tumor was established in New Zealand white rabbits．The size,shape and blood perfusion of the tumor were observed by contrast-enhanced ultrasound,the IFP of VX2 tumor in 41 rabbits was measured by the wick-in-needle method（WIN method）under the guidance of ultrasound．Results The mean values of central IFP,peripheral 1/2 IFP and peripheral 1/4 IFP were（23.79±8.07） mmHg,（15.58±5.22 ）mmHg and （8.29±5.47） mmHg,respectively by statistical analysis,the IFP values changed significantly with different regions（F=70.85,P<0.001）．Conclusions There is heterogeneity of IFP in different regions of VX2 xenografts,that is,from the center to the periphery,the IFP decreased significantly．

目的 观察电针联合重复经颅磁刺激(rTMS)治疗对卒中后抑郁伴失眠患者的疗效并探讨这种联合治疗的机制。方法 对83例PSD患者随机分为rTMS组28例、电针联合rTMS治疗组25例及药物治疗组30例。电针联合rTMS组在对患者进行rTMS治疗基础上予电针治疗2周,并常规给予选择性五羟色胺重摄取抑制剂(SSRI)草酸艾司西酞普兰抗抑郁药物治疗;rTMS组仅采用重复经颅磁刺激治疗2周;药物组给予同种抗抑郁剂治疗。三组于治疗前及治疗2周后接受17项汉密尔顿抑郁量表(HAMD)和匹茨堡睡眠量表(PSQI)评估及多导睡眠监测(PSG)。结果 三组的HAMD评分、PSQI评分及睡眠参数在治疗基线水平均无明显差异。2周后不同治疗组间HAMD计分降低值总体差异有统计学意义(P<0.001)。药物治疗组HAMD计分降低值小于rTMS组和电针联合rTMS组(P<0.05),电针联合rTMS组HAMD计分降低值大于药物组及rTMS组(P<0.05);组间PSQI计分降低值总体差异有统计学意义 (P<0.05)。电针联合rTMS组PSQI计分降低值大于药物组及rTMS组(P<0.05),而药物组及rTMS组之间的PSQI计分降低值无统计学差异(P<0.05);组间PSG中总睡眠时间(F=16.735,P<0.001)及睡眠效率(F=87.548,P<0.001)治疗前后差值总体差异有统计学意义。电针联合rTMS组总睡眠时间的改善优于药物组及rTMS组(P<0.01),而药物组及rTMS组之间总睡眠时间的改善无统计学差异(P<0.05);电针联合rTMS组睡眠效率的提高优于药物组及rTMS组(P<0.001),而药物组及rTMS组之间的睡眠效率的提高无统计学差异(P>0.05)。结论 电针联合rTMS治疗可显著改善PSD的抑郁情绪、睡眠质量及改善总睡眠时间及睡眠效率,效果优于药物治疗组及rTMS组,体现了电针联合rTMS对PSD治疗的增效作用。

Objective To investigate the effect of electric acupuncture combined with Repetitive Transcranial Magnetic Stimulation (rTMS) treatment of poststroke depression with insomnia and analyze the therapeutic mechanism of this method. Methods 83 patients with PSD were randomly divided into the group of electric acupuncture combined with rTMS (n=32), rTMS group (n=32) and drug treatment group (n=32). The patients in the group of electric acupuncture combined with rTMS were given with the electric acupuncture treatment for 2 weeks on the basis of rTMS treatment, and also were regularly and continuously administrated with antidepressant drug (escitalopram citalopram). The rTMS group were only given with rTMS for 2 weeks, and the patients of the drug treatment group were administrated with the same antidepressant. At the baseline and 2th week, the 17-item Hamilton depression scale (17-HAMD), Pittsburgh Sleep Quality Index (PSQI) and polysomnography (PSG) were evaluated. Results The sleep parameters, PSQI scores and HAMD scores among three groups had no significant difference at baseline. After 2 weeks, the overall difference of HAMD score reduction between different treatment groups was statistically significant (P<0.001). The HAMD score reduction in the drug treatment group was less than that in the rTMS group and the electric acupuncture combined rTMS group (P<0.05), and the HAMD score reduction in the electric acupuncture combined rTMS group was greater than that in the drug group and the rTMS group (P<0.05). The overall difference of PSQI score reduction between groups was significant (P<0.05). The PSQI score reduction value of electric acupuncture combined with rTMS group was greater than that of the drug group and the rTMS group (P<0.05), while there was no significant difference in the PSQI score reduction value between the drug group and the rTMS group (P<0.05). The overall difference of total sleep duration (F=16.735,P<0.001) and sleep efficiency(F=87.548,P<0.001) evalted by PSG among groups was significant. The changes of both the total sleep duration and sleep efficiency of electric acupuncture combined with rTMS group was greater than that of the drug group and the rTMS group (P<0.001), while there was no significant difference neither in the changes of total sleep duration nor sleep efficiency between the drug group and the rTMS group before and after treatment among the groups (P>0.05). Conclusion Electroacupuncture combined with rTMS treatment may improve the efficacy of depression, sleep quality, the total sleep duration and sleep efficiency of PSD, and the effect is better than that of the drug treatment group and the rTMS group, which reflects the synergic effect of electroacupuncture combined with rTMS on PSD treatment.

目的 本研究通过调查中国华南地区一间大型医疗机构(综合医院)中护士日间过度嗜睡的发生率及相关影响因素。方法 纳入了1 102名在职护士要求他们在一段规定的时间内完成一份自我报告问卷,其中包括人口学资料采集、生活习惯(BMI、小睡习惯、打鼾等)、失眠、抑郁、焦虑、MEQ分型、倒班、工作兴趣等与工作及睡眠相关的特征。了解EDS在被试人群中的发生率及其影响因素。结果 共有1 048名护士有效的完成了问卷(应答率为95.1%)。其中169名(16.1%)护士存在日间过度嗜睡(EDS)。抑郁症状(校正后的OR值= 2.24,95%的可信区间 1.51～3.31)、焦虑症状(1.65; 1.02～2.67)、失眠(2.29; 1.56～3.36)、倒班工作(1.98; 1.03～3.83)和对工作的低兴趣(1.74; 1.01～2.99)是EDS发生的独立危险因素。结论 日间过度嗜睡(EDS)在华南地区的综合医疗机构中的青年护士群体中普遍存在。EDS的发生可能与抑郁症状、焦虑症状、失眠、倒班工作和对工作的低兴趣存在相关。

Objective To investigate the prevalence and correlates of excessive daytime sleepiness EDS in a population of hospital nurses in South China. Methods A total of 1 102 nurses working in a large medical center were invited to participate in this cross-sectional study (females 96.9%,mean age 29.6 years). They all completed a self-reported questionnaire consisting of items on demographic variables,lifestyle factors,insomnia,anxiety,depression,and both work-related and sleep related characteristics. Results A total of 1 048 nurses gave a valid response (response rate 95.1%). Among them,169 (16.1%) reported EDS as defined as an Epworth Sleepiness Scale≥14. Depression (adjusted odds ratio=2.24,95% confidence interval 1.51～3.31),anxiety (1.65; 1.02 ～2.67),insomnia (2.29; 1.56～3.36),rotating shift work (1.98; 1.03～3.83) and low interest in work (1.74; 1.01～2.99) were all independent risk factors of the occurrence of EDS. Conclusion EDS were common among this relatively young and healthy nurse population in south China. There were clear associations with EDS and depression,anxiety,insomnia,rotating shift work and low work-related interest.

目的 分析超声引导下经皮肾穿刺活检术对弥漫性肾病进行病理诊断的临床应用价值。方法 回顾性分析我院275例弥漫性肾病患者经超声引导下行经皮肾穿刺活检术进行诊断的情况,针对上述患者的穿刺活检情况、穿刺满意度、取材成功率、并发症发生状况、弥漫性肾病病理分型结果以及术后诊断更正的情况进行分析。结果 275例患者穿刺满意度、取材成功率、并发症总发生率分别为94.91%,100%、10.91%。275例患者术后并发症的发生与年龄、穿刺次数、肾实质厚度、术前血肌酐水平有关。275例患者以膜性肾病、IgA肾病居多,分别占比23.27%、18.55%。275例患者术后诊断更正率为19.79%。结论 超声引导下经皮肾穿刺活检术是一种安全有效的弥漫性肾病诊断方法,其术后并发症发生率较低且较轻。在弥漫性肾病病理分型诊断中以膜性肾病、IgA肾病的发病率较高。超声引导下经皮肾穿刺活检术可早期诊断弥漫性肾病的病理类型,为确定治疗方案提供可靠依据,改善肾脏疾病的预后。

Objective To analyze the clinical value of ultrasound-guided percutaneous renal biopsy for pathological diagnosis of diffuse renal disease. Methods Retrospective analysis of 275 patients with diffuse renal disease in our hospital underwent ultrasound-guided percutaneous renal biopsy for diagnosis. According to the above-mentioned patients' biopsy status,puncture satisfaction,success rate of material extraction,complications,and diffuse results of pathological typing of nephropathy and correction of postoperative diagnosis were analyzed. Results The satisfaction rate of puncture,the success rate of material extraction and the total incidence of complications were 94%,100%,and 10.91%,respectively. The incidence of postoperative complications in 275 patients was related to age,number of punctures,thickness of renal parenchyma,and preoperative serum creatinine levels. Membrane nephropathy and IgA nephropathy were the most common in 275 patients,accounting for 23.27% and 18.55% respectively. The correction rate of postoperative diagnosis in 275 patients was 19.79%. Conclusion Ultrasound-guided percutaneous renal biopsy is a safe and effective method for diagnosing diffuse nephropathy,and the incidence of postoperative complications is low and mild. Membrane nephropathy and IgA nephropathy have a higher incidence in the diagnosis of diffuse nephropathy. Ultrasound-guided percutaneous renal biopsy may early diagnose the pathological type of diffuse renal disease,provide a reliable basis for determining the treatment plan,and improve the prognosis of renal disease.

目的 探讨高频经颅磁刺激治疗对 PSD 伴失眠患者的抑郁情绪及睡眠质量的疗效。方法 对63例PSD患者随机分为联合组32例(10Hz高频rTMS+艾司西酞普兰)及药物组31例(艾司西酞普兰+假刺激),每周5次,共治疗4周。于治疗前及治疗后4周末分别对两组患者进行HAMD、PSQI评分及多导睡眠监测。。结果 rTMS 治疗前,2组HAMD、PSQI评分及睡眠参数比较均无差异;治疗后第4周末,两组HAMD评分、PSQI评分、总睡眠时间、睡眠效率及快眼动睡眠期比例均较治疗前改善;研究组HAMD评分下降幅度较对照组明显,而PSQI评分下降幅度及相关睡眠参数改善无差异。结论 高频rTMS治疗对PSD的抑郁症状疗效更明显,而对睡眠质量及睡眠结构的改善则与药物治疗疗效相当。

Objective To investigate the effect of high frequency transcranial magnetic stimulation on depression and sleep quality in poststroke depression patients with insomnia. Methods 63 patients with PSD were randomly divided into observation group (n=32)and control group (n=31). Both groups were treated by 10~20 mg escitalopram citalopram for 4 weeks. The patients in observation group also accepted 10 Hz rTMS 10 times (i.e., as a course), while the patients in control group were treated by sham stimulation. At the baseline and 4th week, the 17-item Hamilton depression scale (17-HAMD), Pittsburgh Sleep Quality Index (PSQI)and polysomnography (PSG)were evaluated. Results The sleep parameters, PSQI scores and HAMD scores among two groups had no significant difference at baseline. After 4 weeks treatment, the HAMD score, PSQI score, total sleep duration, sleep efficiency and proportion of rapid eye movement sleep in both groups were improved compared with those before treatment. The descend range of HAMD score in observation group was larger than that in control group (t=2.590,P=0.012), while the descend range of PSQI scores(t=0.897,P=0.373)and the change of the sleep parameters in the two group had no obvious difference. Conclusion High frequency rTMS has better curative effect than antidepressant therapy on depressive symptoms of PSD,while there was no difference on the effect to improve the sleep quality and sleep structure of PSD between these two treatments.

目的 检测抑郁障碍患者血清中IL-2和TNF-α水平,探讨IL-2和TNF-α水平与认知功能情况相关性。方法 采用酶联免疫吸附法(ELISA)检测100例抑郁障碍患者(观察组)和100例健康人(对照组)的血清IL-2、TNF-α的水平,并结合汉密尔顿抑郁量表(HAMD)观察患者抑郁障碍的严重程度,应用Loewenstein 认知评定量表评定患者的认知状态情况进行相关分析。结果 与对照组相比,观察组的IL-2、TNF-α的水平明显更高(P<0.05)。IL-2、TNF-α的水平与HAMD,LOTCA总分呈正相关(P<0.05)。结论 抑郁障碍患者血清中IL-2、TNF-α的水平与抑郁障碍患者的严重程度和认知状态情况呈正相关。

Objective To study the levels of serum IL-2 and TNF-α in depressed patients and theircorrelations with the cognitive function. Methods 100 depressed patients (observation group) and 100 healthy people (control group) were enrolled to this study and we compared their levels of serum IL-2 and TNF-α detected by enzyme-linked immunosorbent (ELISA) from two groups. The correlation analyses of the serum IL-2 and TNF-α levels with the severity of depression of depressed patients observed with Hamilton depression scale (HAMD), and the serum IL-2 and TNF-α levels with the cognitive function evaluated with Loewenstein were conducted. Results The levels of serum IL-2 and TNF-α in the observation group were significantly higher than control group (P<0.05).There were positive correlations between the levels of IL-2 and TNF-α and HAMD scores and between the levels of IL-2 and TNF-α and LOTCA scores (P<0.05). Conclusion The levels of serum IL-2 and TNF-α in the depressed patients were positively correlative with the severity of depression and their cognitive function.