目的 分析影响广州青少年自杀行为的因素。方法 选取100例自杀行为青少年为观察组,选100例健康青少年为对照组,对比两组青少年家庭结构、家庭教育方式、自身人格特征等指标。多因素Logistic回归分析其自杀行为危险因素。结果 观察组青少年抑郁量表、焦虑量表、攻击性人格及冲动性人格量表分值均高于对照组高;单亲家庭或父母常年在外、家庭教育方式不当、学校无健康心理教育课、抑郁或焦虑、冲动或攻击性人格、负面事件、消极应对是青少年自杀行为独立危险因素,P均＜0.05。结论 家长及学校应正确引导青少年处事方式,积极面对生活,打消自杀意念。

Objective To analyze the factors influencing the suicide behavior of adolescents in Guangzhou. Methods The 100 cases of adolescent suicide behavior were selected as the observation group, 100 healthy adolescents were selected as control group, compared with two groups of adolescent family structure, family education, personality traits and other indicators. Multivariate logistic regression analysis of risk factors was taken for suicidal behavior. Results In the observation group adolescent depression scale, anxiety scale, attack impulse personality and personality amount scores were higher than those in the control group, single parent family or parents staying outside, improper family education, school health psychological education, depression or anxiety, impulsivity, or aggressive personality, negative events, negative coping were independent risk factors for adolescent suicide, P<0.05. Conclusion Parents and schools should have guide to adolescents, toface life positively, and give up thought of suicide.

目的 探讨结肠粪性穿孔的发病原因、临床特点、诊断和治疗方法。方法 回顾性分析广州市第一人民医院2012年1月—2015年1月收治的12例结肠粪性穿孔病人的临床资料。结果 本组病人共12例,均因腹膜炎体征行剖腹或腹腔镜探查术,术中根据Maurer标准诊断为结肠粪性溃疡穿孔。本组病人术后治愈出院10例,治愈率为83.3%,2例80岁以上病人因感染中毒性休克、多器官功能衰竭分别于术后第2天及第3天在重症监护病房死亡,死亡率为16.7%,术后主要合并症为肺炎(10例,83.3%)及胸腔积液(12例,100%)。结论 在临床工作中,了解结肠粪性穿孔发生的危险因素,及时进行有针对性的辅助检查,快速手术干预是降低病死率的关键。

Objective To explore the causes, clinical characteristics, diagnosis and treatment of stercoral perforation of colon. Methods The clinical data of 12 cases of stercoral perforation of colon from Jan 2012 to Jan 2015 were retrospectively analyzed. Results There were twelve patients who were diagnosed stercoral perforation of colon according to accurate diagnostic criteria during the open or laparoscopic operation. Of the 12 cases, 10 cases (83.3%) were cured, 2 cases (16.7%) died because of septic shock and multiple organ failure in the intensive care unit. After operation 10 cases (83.3%) had pulmonary infection and 12 cases (100%) had pleural effusion. Conclusion The key of improve the prognosis of stercoral perforation of colon depends on the full understanding of risk factors, proper preoperative examination and prompt surgical procedures.

目的 探讨胰腺神经鞘瘤的临床特点和诊治方法。方法 总结并回顾性分析我院肝胆外科收治的胰腺神经鞘瘤患者1例及文献报道的71例患者临床资料。结果 共计72例胰腺神经鞘瘤患者纳入总结和分析。患者平均年龄54岁(范围17～89岁),其中女性40例(56%)。临床表现包括上腹痛、体重减轻,或体检偶然发现胰腺肿物。肿瘤平均大小6.1 cm(1～20 cm)。肿瘤位于胰头部29例(40%)、胰体/尾部32例(44%),沟突部6例(8%)。肿瘤表现为实性肿物27例(38%)、囊性28例(39%)、囊实性10例(14%)。2例通过术前超声内镜下穿刺活检病理确诊,其余均为手术后标本病理诊断证实。手术治疗行胰十二指肠切除术23例、局部剜除术16例、胰体尾切除术15例、胰腺中段切除1例。5例 (7%) 患者术后病理为恶性神经鞘瘤,恶性组肿瘤大小明显大于良性组[(13.8±6.2)cm vs (5.6±4.1)cm,P=0.0004)]。手术切除患者术后随访3～65月,均无肿瘤复发、转移及患者死亡。结论 胰腺神经鞘瘤临床表现缺少特异性,术前诊断困难,肿瘤大小与良恶性具有明显相关性,手术治疗可取得良好效果。

Objective To analyze clinical presentation, diagnosis, treatment options, and outcome of pancreatic schwannoma. Methods A retrospective study of clinical data of a case in our hospital and 71 cases reported in literature with pancreatic schwannoma. Results 72 cases were analysed. The mean age was 54 years (range 17-89 years), with 56 % of patients being female. Mean tumor size was 6.1 cm (range 1-20 cm). Tumor location was the head (29 cases), body and tail (32 cases), and uncinate process (6 cases). 27 cases exhibited solid tumors and 28 cases exhibited cystic tumors. Treatment included pancreaticoduodenectomy (23 cases), distal pancreatectomy (15 cases), enucleation (16 cases). 5 cases (7%) were malignant schwannoma. Tumor size of malignant group was significant larger than benign group (13.8±6.2 cm vs 5.6±4.1 cm,P=0.0004). There was no local recurrence metastasis,or death at the follow-up after operation (range 3-65 months). Conclusion The clinical manifestations of pancreatic schwannoma are lack of specificity and preoperative diagnosis remains difficulty. The tumor size was significantly related to classification of malignant or benign. Pancreatic schwannoma has satisfactory prognosis with surgical treatment.

目的 探讨临床常用非侵袭性检查指标诊断膀胱出口梗阻(BOO)的准确性及可靠性。方法 回顾性研究2003年11月—2015年11月在广州市第一人民医院就诊并接受压力—流率测定(PFS)的男性LUTS/BPH患者,以侵袭性的PFS为诊断BOO的“金标准”,以前列腺体积(PV)、移行带体积(TZV)、移行带指数(TZI)、前列腺特异性抗原(PSA)、最大尿流率(Qmax)、剩余尿量(PVR)、剩余分数(RF)等非侵袭性检查指标为诊断指标进行诊断试验评价。结果 筛选1319例患者纳入统计分析。以ICS列线图为诊断标准,PV、TZV、TZI、PSA、Qmax、RF、PVR诊断BOO的ROC曲线下面积(AUC)分别为0.803、0.807、0.698、0.775、0.740、0.679、0.641;以Schaefer列线图为诊断标准,PV、TZV、TZI、PSA、Qmax、RF、PVR诊断BOO的AUC分别为0.806、0.814、0.713、0.773、0.721、0.684、0.642。结论 PV、TZV、TZI、PSA、Qmax、RF、PVR等非侵袭性指标对筛查及诊断中老年男性BOO有一定的参考价值及临床意义,其中TZV、PV、PSA、Qmax的诊断准确性较高。

Objective To evaluate and assess the efficacy and validity of the most common and noninvasive parameters in daily clinical practice for detecting bladder outlet obstruction (BOO) in elderly male compared with the golden standard pressure-flow study (PFS). Methods Retrospectively analyze the outpatients and inpatients of male LUTS/BPH from November 2003 to November 2015 in Guangzhou First People's Hospital. Collect the PFS parameters and other noninvasive parameters including PV, TZV, TZI, PSA, Qmax, RF, and PVR. Receiver operating characteristic (ROC) curve was used to evaluate the efficiency of each parameter for detecting BOO. Statistic analyses were performed using SPSS (Version 21). Results The data from 1319 patients were analyzed. According to the ICS-nomogram. The areas under the ROC curve (AUCs) of PV, TZV, TZI, PSA, Qmax, RF, and PVR for detecting BOO were 0.803, 0.807, 0.698, 0.775, 0.740, 0.679, and 0.641, respectively. According to the Schaefer's nomogram, the AUCs of PV, TZV, TZI, PSA, Qmax, RF, and PVR for detecting BOO were 0.806, 0.814, 0.713, 0.773, 0.721, 0.684, and 0.642, respectively. Conclusion PV, TZV, TZI, PSA, Qmax, RF, and PVR would help predicting BOO in elderly male noninvasively, and providing valuable reference and guidance in clinical decision. TZV, PV, PSA and Qmax supply preferable accuracy for detecting BOO, with better sensitivity and specificity.

目的 探讨肌电生物反馈对正常人脑血流动力学的影响及其变化规律。方法 总数30人的健康正常受试者纳入研究,按照表格法随机分为生物反馈实验组和对照组。其中生物反馈组20人,对照组10人。该试验采用肌电生物反馈作为反馈方法,记录两组试验前后双侧大脑前动脉、大脑中动脉和大脑后动脉的平均血流速度和脉动指数。每次生物反馈试验后间隔3天,作为一个生物反馈阶段,总共进行7个阶段。结果 生物反馈组大脑中动脉的平均血流速度在试验前、后高于对照组(P<0.05),而其脉动指数则低于对照组(P<0.05)。生物反馈组在试验前、后大脑中动脉的平均血流速度随着生物反馈次数的增加而增快(P<0.05),而脉动指数则随之而降低(P<0.05)。结论 肌电生物反馈能够增加正常人大脑中动脉的平均血流速度和降低其脉动指数,且随着生物反馈次数的增加而呈现累积效应。

Objective To discuss the effect of electromyographic biofeedback on cerebral hemodynamics in health people. Methods A total of 30 healthy volunteers were enrolled in this study, and randomly divided into biofeedback group (n=20) and control group (n=10). The biofeedback group had been done with electromyographic biofeedback for seven times with 3 days intervals after each test. The data including the mean velocity (Vm) and pulse index (PI) of anterior cerebral artery, middle cerebral artery (MCA) and posterior cerebral artery were collected bilaterally before and after the test using transcranial Doppler in the two groups. Results The values of Vm (P<0.05) were higher and PI (P<0.05) were lower in biofeedback group than those in control group before and after the test. The values of Vm (P<0.05) increased and PI (P<0.05) decreased gradually in biofeedback group from 1st to 7th tests. Conclusion The electromyographic biofeedback can induce to the increasing of velocity of cerebral blood flow and decreasing of PI in MCA, and the additive effect was observed during the 7 tests in biofeedback group.

目的 对不同周龄的KO小鼠与WT小鼠进行悬尾实验进行观察,探讨KO小鼠与WT小鼠的行为差别。方法 采用健康的试验动物180只分两组:①KO组(4、6、8周龄,各周龄30只,雌雄各半,共90只)②WT组(4、6、8周龄,各周龄30只,雌雄各半,共90只);通过悬尾实验观察性别,年龄对不动时间的影响。结果 同龄KO雌性小鼠比雄性小鼠的静止时间差别不大;随着年龄增大,静止时间增长。 同龄同性别的KO鼠比WT鼠的不动时间长。P<0.05;同龄雄性小鼠比雌性小鼠的不动时间短; 随年龄增长各种系小鼠不动时间增长,KO鼠的不动时间比WT鼠长,P<0.05。结论 KO小鼠存在抑郁行为表型。

Objective To observe tail suspension test in Fmr1 gene knockout mice and to explore whether there are differences in mobility of KO and WT mice. Methods 180 test mice were divided into two groups: ① KO group (4,6,8 weeks old, each age group of mice is 30, male and female in half, a total of 90) ② WT group (4,6, 8 weeks old, each group of mice is 30, male and female on half, a total of 90). Through forced swimming test and tail suspension test to observe gender, age effect on immobility time. Results With the same age of the same sex,the KO mice's immobility time was longer than WT mice's. P<0.05. With the same age,the male mice's immobility time was shorter than female mice's. With the age increase, the immobility time of KO mice was longer than WT mice. P<0.05. Conclusion Fmr1 gene knockout mice have anxiety and depressive behavior.

目的 初步探讨黄芩苷防治支气管哮喘的作用机理。方法 用卵蛋白致敏大鼠制备支气管哮喘动物模型,经黄芩苷干预治疗,运用免疫组化法及Western Blot法检测各组大鼠肺组织匀浆中p38 MAPK磷酸化蛋白表达量。结果 两种检测方法均显示,p38 MAPK磷酸化蛋白水平在模型组中有明显的增加,地塞米松组、黄芩苷高剂量组和低剂量组的p38 MAPK磷酸化蛋白水平均低于模型组(P<0.05)。结论 黄芩苷能有效治疗哮喘的作用与抑制哮喘大鼠p38 MAPK信号通路的表达密切相关。

Objective To explore the mechanism of Baicalin in treatment of bronchia asthma. Methods Animal models of bronchia asthma were made in rats sensitized with egg albumen. After the treatment of Baicalin, immunohistochemistry and western-blot methods were used to test expression quantity of phosphorylated p38 protein of lung tissue in all groups of guinea rats. Results Our data confirmed that the level of phosphorylated p38 protein increased significantly in model group, but it decreased in hexadecadrol group, high dose and low dose Baicalin group (P<0.05). Conclusion The effects of Baicalin in asthma model were associated with inhibition of P38 MAPK signal pathways in a dose-dependent manner.

目的 研究鸟胞内分枝杆菌复合群(MAC)MAV3104基因编码蛋白与药物外排的关系。方法 以MAC标准株基因组为模板,扩增MAV3104基因,构建pMV261-MAV3104c重组质粒;测序正确后,转化重组质粒到大肠杆菌DH5并在MAC标准株中诱导表达, Western Blot鉴定MAV3104表达;按照CLSIM24-A2的操作要求检测MAC标准株对克拉霉素的敏感性及外排泵抑制试验。结果 经基因测序及Western Blot蛋白表达验证重组质粒构建成功;MAV3104过表达能提高鸟分枝杆菌对克拉霉素的MIC,且硫利达嗪能抑制该作用;MAV3104过表达也能提高胞内分枝杆菌对克拉霉素的MIC,但硫利达嗪对其没有抑制效应。结论 MAV3104转运蛋白介导的药物外排在鸟分枝杆菌耐克拉霉素中起重要作用。

Objective To investigate the association of the protein coded by Mycobacterium avium-Mycobacterium intracellulare complex in MAV3104 in drug efflux of Clarithromycin. Methods According to the Mycobacterium avium-Mycobacterium intracellulare complex standard strain, the MAV3104 gene was amplified by PCR and cloned into expression vector pMV261 to generate the recombinant plasmids. After verification by sequence analysis, the recombinant plasmids was transformed into E. coli DH5 andMycoba ctenum avium-Mycobacterium intracellulare complex standard strain. To identify the protein expression by western blotting and investigate the sensitivity of clarithromycin and efflux pump inhibition test in the light of CLSIM24-A2 protocol. Results It was verified by sequence analysis and western blotting that the recombinant plasmids were successfully constructed. Over expression of Mycobacterium avium MAV3104 gene could enhance clarithromycin MIC, which could be inhibited by thioridazine. Over expression of Mycobacterium intracellulare MAV3104 gene also could enhance clarithromycin MIC, but it could not inhibited by thioridazine. Conclusion This study demonstrates that efflux pumps mediated by MAV3104 protein play an important role in Mycobacterium avium resistance to clarithromycin.

目的 探讨优质护理对大面积烧伤患者创面换药时对疼痛及不良情绪的影响。方法 收集我院大面积烧伤的患者,分为研究组和对照组。两组基础护理相同,研究组加用优质护理。对比两组护理前护理4周时焦虑评分,以及两组护理前、护理4周时创面换药时的疼痛评分。结果 ①研究组和对照组护理前焦虑评分结果比较无差异;研究组和对照组护理4周焦虑评分结果比较有差异。②研究组和对照组护理前创面换药时的疼痛评分结果比较无差异;研究组和对照组护理4周创面换药时的疼痛评分结果比较有差异。结论 本次研究认为通过优质护理能够明显提高大面积烧伤患者创面换药时的疼痛程度,对减少住院期间焦虑不良情绪有重要的意义。

急性肾损伤(acute kidney injury,AKI)是由各种因素导致的临床综合征,尽管科学在发展,发病率、死亡率一直居高不下,并且严重影响患者的预后,这主要是由于对肾脏损伤的早期诊断缺乏敏感的、特异性的指标,使得患者错过了最佳的治疗窗口。研究发现在AKI的早期给予干预,能够明显提高患者的预后,达到满意的治疗效果。所以AKI的早期诊断是提高患者的生活质量的关键措施,期间出现了一系列AKI 的早期分子标志物,包括NGAL、IL-18、miRNA、KIM-1、NAG、L-FABP、TIMP-1、IGFBP-7、TFF-3、GST-π、MYL12B等。本文就这些AKI分子标志物进行总结,阐述这些分子标志物在AKI 诊断及预后预测中的价值,以便于及早制定有针对性的 AKI 治疗及护理策略,使早期诊断、早期干预 AKI 成为可能。