不同特征女性人工流产时焦虑、抑郁情绪及影响因素

目的:研究不同特征女性人工流产时焦虑、抑郁情绪评估及影响因素。方法:以2019年1-7月在本院择期行人工流产者105例,其中已婚54例、未婚51例,手术流产62例、药物流产43例。采用焦虑自评量表(SAS)和抑郁自评量表(SDS)评价并比较不同特征者人工流产前焦虑及抑郁程度,多因素logistic分析可能影响因素。结果:不同婚姻状态、文化程度、孕次、产次、流产方式者发生术前焦虑及抑郁程度存在差异(P<0.05),不同年龄、流产次数者术前焦虑及抑郁程度评分未见差异(P>0.05);未婚及手术流产者术前焦虑及抑郁情况最高(P<0.05)。多因素分析,流产妇女婚姻状态、文化程度、产次、孕次以及流产方式均为产生术前焦虑情绪的独立危险因素。结论:未婚及手术流产者流产前负面情绪较高,提示临床在行人工流产中,及时开展健康教育,做好咨询工作,降低流产妇女的负面情绪,提升生殖健康质量。     

Ⅰ期双侧全髋关节置换治疗系统性红斑狼疮合并股骨头坏死的早中期疗效

目的分析Ⅰ期双侧全髋关节置换（THA）治疗系统性红斑狼疮（SLE）合并中晚期股骨头缺血性坏死（ANFH）的早中期疗效。方法中山大学附属第三医院骨科对17例SLE合并中晚期ANFH患者均行Ⅰ期双侧THA，按照ARCO分期分为ⅢB期7髋、ⅢC期12髋，Ⅳ期15髋，结合患者年龄与骨质条件选择股骨假体不同的固定方式。采用Harris评分结合SF-36评分方法进行疗效比较与随访，平均随访时间28个月。结果术后2例切口延迟愈合，1例假体脱位，1例大腿痛10月，1例急性肾衰，均经治疗后好转。6例经彩超发现无症状下肢深静脉血栓，无肺栓塞、假体深部感染发生，无肾上腺皮质危象表现，随访期间髋关节疼痛及活动度明显改善，无假体松动。Harris髋关节功能评分（平均91．6分）与术前（平均42．6分）相比差异有统计学意义（P〈0．01），SF-36评分（平均84．5分）与术前（平均51．4分）相比差异有统计学意义（P〈0．01）；不同ARCO分期病例术后Harris评分差异无统计学意义（P〉0．05）；不同假体固定方式术后Harris髋关节功能评分、SF-36评分均差异无统计学意义（P〉0．05）。结论Ⅰ期双侧人工髋关节置换术对SLE合并中晚期ANFH的早中期疗效良好，应严格掌握手术适应证和手术时机，加强围手术期处理，选择合适的假体固定方式。     

基于特征的深度学习预测化合物-蛋白质相互作用的研究进展

药物研发过程中,化合物-蛋白质相互作用（compound-protein interaction,CPI）预测是发现苗头化合物、药物重定位等研究的关键技术手段。近年来,深度学习被广泛应用于CPI研究,加速了药物发现中CPI预测的发展。本文重点讨论基于特征的 CPI 预测模型,首先,介绍了CPI预测中常见的数据库、化合物和蛋白质的典型特征表示方法。根据建模中的关键问题,从多模态和注意力机制两个方面,对基于特征的CPI预测模型展开论述。在此基础上,选取其中12个模型,在3个经典数据集上评估了模型在分类任务和回归任务中的性能。本文总结当前该领域面临的挑战,对未来的发展方向进行展望,为CPI预测方法进一步研究提供思路。     

Effects of prolactin on HLA- DR and CD40 expressions by human thyrocytes

Objective To study the effects of prolactin (PRL) on HLA- DR and CD40 expressions by human thyrocytes, and to investigate the possible mechanisms for PRL to affect the de velopment of Graves’ disease (GD). Methods Thyrocytes in secondary culture, which were from GD thyroid glands and the tissu es adjacent to the lesions of multinodular goiter and adenoma (control group), w ere treated respectively with ovine PRL (oPRL), interferon- γ (IFN- γ), interl ukin- 4 (IL- 4) and oPRL plus IFN- γ (10 U/ml) or IL- 4 (5 ng/ml) for 7 days . HLA- DR and CD40 expressions on the thyrocytes were determined by immunofluor escent staining and flow cytometry. Results oPRL (12. 5 ng/ml-1000 ng/ml) had no significant direct effect on HLA- DR or C D40 expression. It did not significantly affect the stimulation of HLA- DR exp ressions on the two groups of thyrocyte treated with IFN- γ or on GD thyrocytes treated with IL- 4. oPRL could antagonize the stimulation of CD40 expressions by IFN- γ and the inhibition by IL- 4 on both groups of thyrocytes. The antago nizing effects were related to the concentrations of PRL. IFN- γ- stimulated p ercentages of CD40［+］ thyrocytes and delta mean fluorescence intensity (dMF) in both thyrocyte sources were significantly reduced in the presence of 200 ng/ml oPRL (both GD and Control: P&lt;0. 01 and P&lt;0. 05, respectively; Contro l: P&lt;0. 05) and 1000 ng/ml oPRL (GD: P&lt;0. 01; Control: P&lt;0. 05). oPRL caused significant increasing in IL- 4- inhibited percentages of CD40［+］ ce lls from the two groups of thyrocytes at 12. 5 ng/ml and 1000 ng/ml and dMF fr om GD thyrocytes at 1000 ng/ml (P&lt;0. 05). Conclusions PRL can exert indirect effects on CD40 expressions on thyrocytes by antagonizing the modulatory actions of IFN- γ and IL- 4 with dose- related effects. This m ay be one important mechanism for PRL to affect the development of GD.     

侵及邻肺叶的非小细胞肺癌与可手术的T4患者的术后生存比较

目的 分析经手术治疗的直接侵犯邻肺叶的非小细胞肺癌(NSCLC)的预后情况,并与经手术治疗的纵隔重要结构受侵犯的T4患者的预后情况进行比较,为更合理地对直接侵犯邻肺叶的周围型NSCLC进行T分期提供线索.方法 所有患者均接受手术治疗,并且均为术前临床分期和术后病理分期均为NOMO的NSCLC患者.从1997年3月到2006年10月,广州中山大学肿瘤防治中心共有49例患者符合入组条件.其中28例直接侵犯邻肺叶的周围型NSCLC归于A组,21例直接侵犯纵隔重要结构的T4患者归于B组.对这两组患者的临床病理资料,中位生存期和长期生存率进行计算和比较.两组间生存率的比较用Log-Rank检验.结果 两组的性别、年龄、病理类型、肺功能和术后辅助治疗情况具有较好的均衡性.A组有1例发生围术期死亡.A组的2年、3年和5年生存率分别为68.7%、61.1%和40.7%;B组的2年、3年和5年生存率分别为64.7%,58.2%,43.7%;A组和B组中位生存期分别为54个月和49个月,两组问生存期的差异无统计学意义(P=0.931).结论 直接侵犯邻肺叶的周围型NSCLC的预后与可手术的侵犯纵隔重要结构的T4患者的预后相似.对部分患者,手术治疗可以取得较为理想的疗效.对于邻近肺叶受侵的NSCLC患者,手术方案应该按照同期双原发肺癌的治疗原则来制定.尚需进一步研究来探讨邻近肺叶受侵的NSCLC的T分期.     

Eye lrritation caused by Formaldehyde as an Indoor AIr Pollution—A Controlled Human Exposure Experiment

Obejective　The present study focuses on health assessment of wood based panels which are widely used in interior decoration practices over the recent years in China. Formaldehyde has been identified as chemical indicator of (IAO) and an indoor air pollutant. To test its health effects experiment was undertaken. Method　A small environmental test chamber (60/L) was used as the generator of emission gas from new panels, and was operating at a temperature of 22.7±0.6℃ and a humidity of 44.4±2.5 % with an air exchange rate of 1.0±0.15h-1. On the three experimental days the values of product loading in chamber were 4, 2 and 6 m2/m3, respectively. Eight people were selected randomly from the students and employees of Wuhan Health and Anti-epidemic Station as subjects, with an average age of 21.9±5.9 years, and a gender ratio of 1:1, and two of them were smokers (one male and one female). The subjects' eyes were exposed to formaldehyde through a pair of goggles. Each goggle had its flow inlet and outlet, and connected to chamber exhaust of emission gas and to an exhaust from the room. The exposure time was very short, just 5 minutes and the formaldehyde doses were at 1.65±0.01, 2.99±0.07 and 4.31±0.02 ppm. A 60-mm linear visual analogue rating scales was used to measure the intensity of sensory eye irritation and a video tape recorder was used to record eye blinking frequency. Results　The results demonstrated that tests of sensory eye irritation and eye blinking can be used for materials testing, and that a dose-effect as well as a time-variance of the effect can be measured. Conclusion　The tests showed that eye irritation was perceived at all of the three levels.     

A clinical observation of early short-term use of potent antibiotics in severely burned patients

Objective: To evaluate the effect of early and short-term use of potent antibiotics following extensive severe burn injury. Methods: Seventeen severely burned patients hospitalized in the same period (Nov.,1998 to Oct., 2000) wer esame treatment in Group 2 (n=8) was discontinued until day 15 postburn. The survival rate, blood bacterial culture, body temperature and white blood cell and platelet counts were compared between the 2 groups. Results: All the 17 patients survived and all blood bacterial cultures were negative. No significant difference of body temperature and white blood cell and platelet counts between the 2 groups was observed (P＞0.05). Conclusion: Early use of high-potency antibiotics at short treatment course after extensive severe burn is effective to prevent infection and reduce the cost.     

老年人生活满意度与生存质量关系的探讨

目的 分析和探讨老年人生活满意度和生存质量的相互关系。方法 对福州市１０８４例年龄≥６０岁的老年人进行生活满意度和生存质量地流行病学调查,将两组数据分别采用因子分析法和典型相关分析法进行分析。结果 生活满意度与生存质量呈正相关关系;生存质量的高低主要由生活满意度来反映。结论提高生活满意度是改善生存质量的重要措施。     

复方灵芝降糖胶囊治疗糖尿病的实验研究

探讨复方灵芝降糖胶囊（灵芝、黄芪、三七等组成）治疗糖尿病的药理作用。结果表明,复方灵芝降糖胶囊能降低正常大鼠血糖、改善糖耐量、促进血清胰岛素的释放;对正常小鼠血糖无降低作用;对链脲霉素所致的实验性糖尿病大鼠有明显降低血糖的作用,能改善糖耐量和提高血清胰岛素含量,同时能降低血桨胰高血糖素的含量,并能调节实验性糖尿病大鼠某些血糖代谢环节,如促进肝糖源、肌糖原的合成等;并能明显降低肾上腺素引起的小鼠血糖     

不同工艺各类棉酚的反相薄层色谱分析

目的：考察苯胺法与酸法工艺制备的各类棉酚的质量,本胺法工艺制品中是否残留本胺棉酚。方法：采用RP18F反相薄层板,以丙酮-水（4：1）为展开系统分离展开。结果：苯胺法工艺生产的棉酚中出现苯胺棉酚的斑点。结论：首次用反相薄层色谱法确证了苯胺法工艺生产的棉酚中残留有苯胶棉酚。