SHR、WKY大鼠与SD大鼠注意缺陷多动障碍模型行为学特征的比较

目的 比较SHR、WKY、SD大鼠行为学特征，探寻研究SHR大鼠注意缺陷多动障碍（ADHD）理想的对照模型。方法 运用旷场实验统计大鼠运动距离、运动速度、穿格数及理毛次数来评价SHR、WKY、SD大鼠自主运动情况；运用水迷宫实验检测三组大鼠的学习记忆能力。结果 旷场实验结果显示，SHR大鼠在总运动量、平均运动速度及穿格次数上较WKY及SD大鼠均显著增加（P<0.01）；与WKY大鼠相比，SD大鼠运动距离显著高于WKY组（P<0.01），其运动速度及穿格数略高于WKY组（P<0.05）；水迷宫隐匿站台实验中，与SHR大鼠相比，SD大鼠潜伏期较长（P<0.05），在潜伏期运动距离上，SD大鼠在训练第1天、第3天及第4天运动距离较SHR大鼠延长（P<0.05或P<0.01）；比较WKY组，SD大鼠潜伏期及潜伏期运动距离较WKY在各个训练时间均有不同程度的下降（P<0.05或P<0.01）。在空间探索阶段，SD大鼠穿台次数及目标象限运动时间、距离比率等均较SHR大鼠有所减少（P<0.05），而较WKY大鼠则有不同程度的升高（P<0.05或P<0.01）。结论 WKY大鼠与SHR大鼠行为学差异过大，两者的比较存在一定的不足，增设SD大鼠作为SHR大鼠的对照组能够提升SHR大鼠行为学特征的可比性，更为客观的反映SHR大鼠的行为学特征。     

Evaluation of Adiponectin, Resistin, IL-6, TNF-a in Obese and Non-obese Women with Polycystic Ovary Syndrome

Objective To evaluate possible clinical effects of adiponectin, resistin, IL-6, and TNF-α in obese and non-obese patients with polycystic ovary syndrome (PCOS). Methods Seventy selected PCOS patients were recruited for this study, and were divided into two groups based on their body mass index (BMI): 35 obese (BMI ≥ 25kg/m2 , group A), 35 non-obese (BMI<25kg/m2 , group B). In addition, 35 healthy non-obese women (BMI<25kg/m2 ) were enrolled as the control (group C). Serum levels of FSH, LH, T, glucose, insulin, adiponectin, resistin, IL-6, TNF-α were detected, and compared the differences of them among three groups. Results Blood glucose levels among three groups had no difference (P>0.05). Blood insulin level was significantly greater in group A than in group B or group C (P<0.05), and a significant difference existed between group B and group C (P<0.05). The ratio of glucose/insulin was significantly higher in group A than in group B or group C (P<0.05), and the ratio in group B was significantly higher than that in group C (P<0.05). Adiponectin level was significantly lower and resistin level was significantly higher in group A than in group B or group C (P<0.05). IL-6 level in group C was significantly lower than that in group A or group B (P<0.05), and significant difference was found between group A and group B (P<0.05). TNF-α level was a slight high in group B, whereas there was no statistical difference among three groups (P>0.05). Conclusion Disturbances of some metabolic and inflammatory adipokines could involve the pathogenesis of PCOS in both obese and non-obese women. Low-grade chronic inflammation might have negative effects on the development of PCOS in non-obese women.     

走动式管理在小儿急诊分诊护理质量管理中的应用效果观察

目的观察走动式管理应用于小儿急诊分诊护理质量管理后的实际效果。方法将采用了走动式管理模式下的护理方法所护理的小儿急诊患者,设置为试验组;对照组则为仅接受常规护理的同等例数小儿急诊患者,对比两组患儿的临床护理质量,并比较两组患方的满意度。结果走动式管理组患者的护理质量评分和满意度均优于对照组患者。结论走动式管理模式下的护理方式,能够更方便、快捷地缓解小儿病患的临床症状,更大程度上减轻家属的紧张情绪,较常规护理措施质量更佳,具有较高的应用和推广价值。     

Practical Experience of the Application of a Weighted Burden Test to Whole Exome Sequence Data for Obesity and Schizophrenia

For biological and statistical reasons it makes sense to combine information from variants at the level of the gene. One may wish to give more weight to variants which are rare and those that are more likely to affect function. A combined weighting scheme, implemented in the SCOREASSOC program, was applied to whole exome sequence data for 1392 subjects with schizophrenia and 982 with obesity from the UK10K project. Results conformed fairly well with null hypothesis expectations and no individual gene was strongly implicated. However, a number of the higher ranked genes appear plausible candidates as being involved in one or other phenotype and may warrant further investigation. These include MC4R, NLGN2, CRP, DONSON, GTF3A, IL36B, ADCYAP1R1, ARSA, DLG1, SIK2, SLAIN1, UBE2Q2, ZNF507, CRHR1, MUSK, NSF, SNORD115, GDF3 and HIBADH. Some individual variants in these genes have different frequencies between cohorts and could be genotyped in additional subjects. For other genes, there is a general excess of variants at many different sites so attempts at replication would be more difficult. Overall, the weighted burden test provides a convenient method for using sequence data to highlight genes of interest.     

慢性淋巴细胞性白血病患者miR-9-3甲基化异常及其意义

目的本研究旨在探讨microRNA-9-3(miR-9-3)在慢性淋巴细胞性白血病骨髓细胞中的甲基化异常及其意义。方法采用甲基化特异性聚合酶链反应(MSP)技术检测8例正常骨髓组织、78例新确诊的慢性淋巴细胞性白血病患者和7种白血病细胞株甲基化水平。结果正常对照组miR-9-3呈未甲基化状态;7种白血病细胞株中有5种呈未甲基化状态(71.4%);78例慢性淋巴细胞性白血病患者中65例呈miR-9-3甲基化,MSP阳性率为83%。5-氮杂-2'-脱氧胞苷(5-Aza Dc)处理白血病细胞株后I83-E95和WAC3CD5+细胞株miR-9-3呈未甲基化状态。结论慢性淋巴细胞性白血病患者存在miR-9-3表达受抑,可能与其基因甲基化异常有关。而miR-9-3甲基化在激活慢性淋巴细胞性白血病患者NF-κB1信号通路的作用值得进一步研究。     

Squash cytology of tanycytic ependymoma: A report of two cases

Tanycytic ependymoma is a rare variant of ependymoma which has a predilection for the spinal cord. It is a WHO grade II tumour with favourable outcome. Although squash cytology of ependymoma is well described, there is sparse literature available on squash cytomorphology of tanycytic variant. Here we present two cases of squash cytology of tanycytic ependymoma. In the first case the diagnosis of tanycytic ependymoma was considered. However, in the second case a diagnosis of usual ependymoma was offered. Subsequently histopathology confirmed tanycytic nature in both the cases. In this article we discuss the squash cytological features of tanycytic ependymoma along with its differential diagnosis. Diagn. Cytopathol. 2017;45:270–273. © 2016 Wiley Periodicals, Inc.     

Evaluation of the effect of neoadjuvant chemotherapy on tumor and axillary lymph nodes in locally advanced breast cancer： a study of 50 patients

Objective： The purpose of the study was to correlate between effect of pre-neoadjuvant chemotherapy （NACT） and post-NACT clinical, sonographic and pathologic features of the tumor and axillary lymph nodes （ALNs） and to raise the possibility of applying the concept of sentinel lymph node biopsy （SLNB） in patients with initially positive ALNs before NACT. Methods： A prospective study of 50 female patients with locally advanced breast cancer （LABC） with clinically palpable.and cytologically （under ultrasonographic guidance） positive ALNs. All patients received NACT and then referred for ultrasono- graphic assessment of the axilla regarding any detectable sonographic criteria of metastatic deposits in ALNs as well as the tumor size in relation to its prechemotherapy size, All patients were then subjected either to modified radical mastectomy or breast conserving surgery. The clinical, sonographic and pathological response of the tumor and the ALNs were documented, classified and correlated with each other. Results： Patients＇ mean age was 47.7±9.1 years. The mean clinical tumor size was 6.7 ± 1.4 cm; stage IliA that was presented in 32 patients （64%） and IIIB was presented in 18 patients （36%）. Chemotherapy was given for a median of 4 cycles, there was reduction of the mean clinical tumor size from 6.7 ± 1.4 cm to 4.3 ± 2.7 cm （P 〈 0.001）. Clinical response was complete in 5 （10%） tumors, complete pathological tumor response （post-neoadjuvant） was detected in 6 （16%） of patients. Complete clinical nodal response （post-neoadjuvant） in 23 （46%） axillae, on sonographic assessment of the axilla, response was complete in 17 （34%） axillae. Complete pathological nodal response occurred in 16 （32%） axillae. Out of 17 axillae that showed complete sonographic response 11 axillae showed complete pathological nodal response （P 〈 0.001）. Conclusion： Formal axillary lymph node dissection can be avoided and replaced by SLNB post NACT in patients with L