某县普通人群艾滋病基本知识知晓率调查

目的:了解某县一般人群艾滋病基本知识知晓率情况,为进一步做好大众人群的艾滋病健康教育提供指导依据。方法:随机抽取某县县城居民、农村居民、校内青少年、农民工等共550人进行面对面问卷调查。结果:该县普通人群艾滋病基本知识知晓率为68.0%;不同人群艾滋病基本知识知晓率有差异,较高者为校内青少年、较低者为农民工;在城市居民、农村居民、校内青少年、农民工里,年龄小于25岁人群的知晓率77.1%,25～49岁人群的知晓率57.4%;八个问题答题的正确率中较高为与HIV/AIDS共用注射器的传播,正确率为95.6%,较低者为只与一个性伴发生性行为可以减少艾滋病的传播正确率为63.1%。结论:该县普通人群艾滋病基本知识水平一般,应进一步地加强艾滋病知识的宣传教育,提高普通人群艾滋病基本知识的认知水平。     

人工关节置换与内固定修复老年股骨转子间骨折的Meta分析

BACKGROUND: Intertrochanteric fracture is one of the most common fractures in older adults. The surgical treatment methods include artificial joint replacement (total hip and femoral head replacement) and internal fixation (proximal femoral nail anti-rotation and dynamic hip screw), but there is no clear evidence to evaluate the effect of them.  OBJECTIVE: To compare the effect difference of arthroplasty and internal fixation in the treatment of intertrochanteric fracture in the elderly people. METHODS: We retrieved randomized controlled studies on artificial joint replacement (total hip and femoral head replacement) and internal fixation (proximal femoral nail anti-rotation and dynamic hip screw) in the treatment of intertrochanteric fracture from 1990 to 2015. Meta-analysis was used to compare operation time, intraoperative bleeding volume, one-year postoperative Harris hip scores, and one-year postoperative complication between the arthroplasty and internal fixation. RESULTS AND CONCLUSION: (1) Twenty-one studies were included. (2) Intraoperative bleeding volume and one-year postoperative Harris hip scores were higher in the arthroplasty group than in the internal fixation group. (3) Operation time was similar between the arthroplasty and internal fixation groups. (4) Complication rate was lower in the arthroplasty group than in the internal fixation group. Incidence of complications was closed between the arthroplasty and internal fixation groups. (5) Results suggested that the effect of arthroplasty was better than internal fixation for treating intertrochanteric fracture in the elderly. However, prospective large-sample long-term randomized controlled trials are needed for verification.       

正常孕妇阴道菌群特征及影响因素

目的:研究正常孕妇阴道菌群特征及影响因素。方法:本研究基于2018年2月至2020年2月在安徽医科大学附属安庆医院建立的孕妇队列,将所有符合纳入排除标准的"正常"孕妇阴道样本,按采样孕周顺序排列,以每个孕周为一抽样层,每层随机抽取5例样本,不足5例则全部纳入,使用16S rRNA基因测序技术测得样本V3~V4序列。利用...     

几种细胞因子对登革病毒感染U937细胞的影响研究

本文作者研究了几种细胞因子（ｒＩＬ－１，ｒＩＬ－２，ｒＩＬ－６，ｒＴＮＦ－α，ｎＩＦＮ－α和ｎＩＦＮ－γ）对Ｄ２Ｖ感染Ｕ９３７细胞的影响，结果显示：除ｎＩＦＮ－γ对ＤＶ感染Ｕ９３７细胞的感染无影响外，其余几种细胞因子都可使Ｄ２Ｖ感染Ｕ９３７细胞的感染率明显降低，为研究细胞因子在ＤＶ感染中的作用作了初步探索。     

益气养阴活血化瘀方对心力衰竭合并房颤患者血清CRP,BNP,CK-MB及cTnI水平的影响及其疗效观察

目的 研究心力衰竭合并房颤患者在采取益气养阴活血化瘀方治疗时对血清CRP,BNP,CK-MB及cTnI水平的影响.方法 选取2016年9月-2019年10月收治98例的心力衰竭合并房颤患者为研究对象,按不同的治疗手段分为研究组和参照组,各49例.研究组采取益气养阴活血化瘀方治疗,参照组采取常规治疗,对比两组患者的心功能...     

某校园鼠害现状及影响因素分析

为了解某校园鼠患现状,分析鼠害的主要影响因素,进一步改善校园卫生状况提供参考依据,2009年7月底我们对整个校园进行了调查,结果报告如下。1材料与方法1.1校园周边环境学校依山而建,周边是居民区,主要为菜农,民房参差不齐,垃圾随意堆放,生活污水没有专门排放而溢于地表,且目前依据市区建设规划,房屋拆迁工作正在进行,     

华东和华南地区商品猪戊型肝炎病毒携带率和基因分型分析

Objective To determine the prevalence and genotype of hepatitis E virus (HEV)among commercial swine population in Eastern and Southern China. Methods Six hundred specimens of swine bile collected from 5 slaughterhouses in Eastern and Southern China from 2007 to 2009 were tested for HEV RNA using nested RT-PCR. PCR products were sequenced for phylogenetic analysis. Results Forty-seven out of the 600 samples (7.83%) were positive for HEV RNA. Based on the 150 nt fragment within HEV ORF2, data from phylogenetic analysis revealed that all the 47 HEV isolates were identified to be genotype Ⅳ, sharing 75.0%-83.4%, 75.0%-84.6%, 71.9%-80.7% and 88.1%-91.5% nucleotide identities with prototype Ⅰ,Ⅱ,Ⅲ and Ⅳ HEV strains respectively while majority of the isolates clustered within their respective isolation sites. Conclusion HEV was widespread in commercial swine population in Eastern and Southern China that raised a serious concern about the safety regarding the consumption of pork products.     

基于整数规划的永磁型磁共振成像装置主磁体的无源匀场技术研究

为了符合成像标准,磁共振成像(MRI)设备要求主磁体能在较大的成像空间内产生高均匀度的磁场.但由于加工误差,实际磁场的均匀度远不能达到预定的要求,需要采用特殊方法进行匀场.本研究提出一种基于整数规划算法的无源匀场方法,将磁体的匀场问题提炼为整数规划问题,并编制了相应的匀场软件.通过在磁共振主磁体生产厂家进行的无源匀场实验,使得磁场的不均匀度从1549.7898×10-6降低到1129.9105×10-6,即均匀度提高了27%,证明该方法在一定程度上能够快速、有效地完成匀场过程,提高磁场的均匀度.     

老人冬泡热水澡 八项注意莫忘了

自古以来,人们就很讲究洗澡。据考,在《周礼》、《楚辞》中,就有商代人洗澡的记载。出土文物中也曾经发现过战国时的澡盆。现代科学认为,洗澡对于保护皮肤卫生、促进细胞新陈代谢、消除疲劳和改善睡眠等,都有着积极意义。常言道：＂老人勤洗澡,胜似开药方。＂     

伴中央颞区棘波儿童良性癫癎脑电图分析

目的：分析伴中央颞区棘波儿童良性癫癎(BECT)患儿的脑电图表现。方法：对52例临床明确诊断的BECT患儿进行脑电图描记。结果：52例患者中,癫癎样波形出现在清醒描记时39例,出现在NREMⅠ—Ⅱ期13例。其中仅出现棘波者31例,尖波者16例,棘、尖波均出现者5例。癫癎样波形仅出现在中央和(或)颞区者43例,除见于中央、颞区外亦散在性出现于其他脑区者9例,其中双额区明显者1例,一侧枕区明显者1例。有2例在清醒描记时出现典型中央颞区棘波,过度换气时出现广泛性双侧同步性3～4 Hz棘慢波综合。结论：大多数BECT患儿有典型的特征性脑电图表现,但少数患儿可出现其它脑电图异常,应注意鉴别。