2003～2008年大理州急性血吸虫病疫情分析

收集2003～2008年大理州急性血吸虫病（急血）疫情资料进行分析。2003～2008年共报告急血100例,分布于5个县（市）23个乡（镇）40个行政村,2003年发生1起突发疫情,2008年无病例报告。6～9月为发病高峰期,男性发病率高于女性,主要感染方式为生产、生活和嬉戏接触疫水。大理州急血疫情稳定,加强个体防护和健康教育是控制急血的重要措施和手段。     

Erythrocyte membrane n-3 fatty acid levels and carotid atherosclerosis in Chinese men and women

Objective

Prospective studies have supported the beneficial effects of n-3 fatty acid consumption on cardiac deaths, but limited data focused on atherosclerosis. We investigated the associations between n-3 fatty acids in erythrocytes and atherosclerosis in middle-aged and older Chinese.

Methods

847 subjects (285 men and 562 women), aged 40–65 years, from Guangzhou, China were included in this community-based cross-sectional study between December 2005 and January 2008. The levels of α-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in erythrocytes were measured by gas chromatography. Carotid ultrasound examination was conducted to obtain intima–media thickness of the common carotid artery and the carotid bifurcation. Dietary data and other covariates were collected using interviewer-administered questionnaires.

Results

After adjustment for age, sex, and other confounders, negative dose–response associations between the contents of individual n-3 polyunsaturated fatty acids in the erythrocyte membrane and the prevalence of carotid artery wall thickening and plaque were observed. A comparison in the highest and lowest tertiles gave odds ratios (95% confidence interval) for thickening in the walls of the common carotid artery of 0.58 (0. 34–0.97; P-trend = 0. 037) for DHA, and 0.39 (0.23–0.67; P-trend < 0.001) for ALA. However, EPA was not significantly associated with carotid atherosclerosis. Similar results were found for thickening at the carotid bifurcation and the occurrence of carotid artery plaque.

Conclusions

Higher levels of DHA and ALA in the erythrocyte membrane were significantly associated with a lower burden of subclinical atherosclerosis.     

气囊辅助式小肠镜检查相关胰腺炎和高淀粉酶血症的临床研究

目的探讨单气囊小肠镜（SBE）、双气囊小肠镜（DBE）检查与胰腺炎、高淀粉酶血症并发症的相关性。方法连续收集2011年9月至2012年12月间56例行SBE和DBE检查患者的临床资料,按气囊辅助式小肠镜类型及进镜途径进行分组（即分成SBE经口组、SBE经肛组、DBE经口组和DBE经肛组）并整理数据,统计分析气囊辅助式小肠镜类型及进镜途径对镜检相关胰腺炎、高淀粉酶血症并发症发生率的影响。结果SBE经口组19例,发生镜检相关高淀粉酶血症12例（63．16％）、胰腺炎1例;SBE经肛组12例,发生镜检相关高淀粉酶血症2例（16．67％）,无镜检相关胰腺炎发生;DBE经口组15例,发生镜检相关高淀粉酶血症11例（73．33％）,无镜检相关胰腺炎发生;DBE经肛组10例,无镜检相关高淀粉酶血症、胰腺炎发生。术后高淀粉酶血症发生率,SBE经口组与SBE经肛组比较（P=0．009）、DBE经口组与DBE经肛组比较（P=0．001）差异均有统计学意义,而SBE经口组与DBE经口组比较（P=0．415）、SBE经肛组与DBE经肛组比较（P=0．558）差异无统计学意义。结论气囊辅助式小肠镜检查术后较易并发高淀粉酶血症,经口途径较经肛途径更易并发,而是否易发与气囊辅助式小肠镜类型无关;至于气囊辅助式小肠镜检查与术后胰腺炎的相关性,由于样本量太少,未能得出有价值的临床结论。     

活血通络方对大鼠周围神经病变神经传导速度影响的研究?

目的：：研究活血通络方对大鼠周围神经病变神经传导速度的影响。方法：将雄性 Wistar大鼠随机分为正常组、模型组、西药组、中药组、联合用药组,通过高糖高脂饲料喂养、注射链脲佐菌素的方式制作糖尿病大鼠模型,分别给予甲钴胺、活血通络方治疗。治疗后测定神经功能以及神经细胞因子含量。结果：①神经功能：模型组的神经功能低于正常组,中药组、西药组、联合用药组的神经功能优于模型组,联合用药组的神经传导速度、电位波幅均高于中药组、西药组,潜伏期短于中药组、西药组;②神经细胞因子：模型组的神经营养因子( NTF)、神经生长因子( NGF)、脑源性神经营养因子( BDNF)含量均低于正常组,中药组、西药组、联合用药组的NTF、 NGF、 BDNF含量均高于模型组,联合用药组的NTF、 NGF、 BDNF含量均高于中药组、西药组。结论：活血通络方联合甲钴胺有助于改善神经传导功能,提高神经细胞因子含量。     

人工关节磨损颗粒诱导钛合金植入物松动的实验研究

为比较不同人工关节微小磨损颗粒诱导假体周围骨吸收及假体松动生物效应的差异。方法：本实验采用Ｘ线摄片骨密度灰度值测定以及植入物推出力学强度测试等手段,对Ｔｉ－６Ａｌ－４Ｖ,Ｃｏ－Ｃｒ－Ｍｏ与ＵＨＭＷＰＥ三种微小颗粒诱导的假体周围骨结构改变及假体松动作定量分析。结果统计分析显示,直径２．５微米的Ｔｉ－６Ａｌ－４Ｖ颗粒诱导植入物旁骨吸收与植入物松动的程度明显低于相同直径的Ｃｏ－Ｃｒ－Ｍｏ颗粒或ＵＨＭＷＰ     

氟西汀治疗强迫症双盲自身对照研究

为进一步研究氟西汀治疗强迫症的疗效 ,对我院 1 999年 2月～ 2 0 0 0年 2月间住院并符合 CCMD-2 -R诊断标准的强迫症 ( OCD)患者 1 7例 ,进行双盲自身交叉对照研究 ,结果在试验进行到第 1 0例时 ,试验线跨越 U线 ,A药 (氟西汀 )显著优于 B药 (淀粉 ) ,经 Ridit分析 ,前后自身对照有显著性差异 ,说明氟西汀对强迫症确有较好的疗效。     

过表达胶质细胞神经营养因子基因转染骨髓间充质干细胞移植治疗脊髓损伤

文题释义： 胶质细胞源性神经营养因子：作为轴突再生的一种重要神经营养因子,可诱导间充质干细胞向神经样细胞分化并对中枢神经系统退行性疾病、脊髓损伤后神经功能恢复起到重要作用。 突触素：作为突触的特异性蛋白是突触形成过程中最重要的标志物,主要位于神经元胞体及轴突,可调节神经元轴突延伸,参与突触囊泡的介导转运、神经递质释放,对促进脊髓损伤后神经功能恢复起到重要作用。 背景：胶质细胞神经营养因子(glial cell line derived neurotrophic factor,GDNF)在诱导骨髓间充质干细胞(bone marrow mesenchymal stem cells,BMSCs)体外定向分化及促进脊髓损伤大鼠神经功能恢复过程中起到重要作用。 目的：观察过表达GDNF基因的BMSCs分化情况及其促进脊髓损伤大鼠神经功能恢复的潜在分子机制。 方法：①以重组目的基因腺病毒转染BMSCs并分为Ad-GDNF-GFP转染组、Ad-GFP转染组、未转染组,免疫荧光鉴定各组细胞神经元特异性烯醇化酶及微管相关蛋白2的表达,Western blot检测各组细胞GDNF、Wnt3a、Wnt7a蛋白表达。②以改良Allen法制备大鼠脊髓损伤模型,将造模成功的45只SD大鼠随机分为3组,分别以过表达GDNF基因BMSCs(GDNF-BMSCs)、BMSCs、PBS移植至脊髓损伤局部。移植后4周采用BBB评分法评估大鼠运动功能恢复情况,苏木精-伊红染色观察脊髓形态变化,免疫组化检测损伤局部神经元特异性烯醇化酶、突触素Ⅰ及胶质纤维酸性蛋白表达,Western blot检测损伤局部Bcl-2、肿瘤坏死因子α蛋白表达。 结果与结论：①Ad-GDNF-GFP转染组BMSCs可向神经元样细胞形态转变并表达神经元特异性烯醇化酶、微管相关蛋白2;Wnt3a、Wnt7a蛋白表达量显著高于Ad-GFP转染组、未转染组;②移植后4周,GDNF-BMSCs移植组大鼠BBB评分明显提高、脊髓空洞面积显著缩小。GDNF-BMSCs移植组脊髓损伤局部胶质纤维酸性蛋白、肿瘤坏死因子α表达量显著低于BMSCs移植组及PBS移植组,而神经元特异性烯醇化酶、突触素Ⅰ及Bcl-2表达量显著高于BMSCs移植组、PBS移植组;③结果表明,Wnt信号通路参与过表达GDNF基因 BMSCs向成熟神经元分化过程,移植后通过降低脊髓损伤局部炎症反应、减少细胞凋亡及胶质瘢痕形成、促进轴突再生,提高BMSCs移植治疗脊髓损伤的疗效。 ORCID: 0000-0001-6467-730X(黄成) 中国组织工程研究杂志出版内容重点：干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程     

Clinical practice guidelines for the treatment of allergic rhinitis in children with traditional Chinese medicine

Allergic rhinitis (AR) is one of the most common allergic diseases in children and it can lead to physical and mental health problems. Traditional Chinese medicine (TCM) plays an important role in understanding the phenotypes and treatment of AR. However, there are currently no normative clinical practice guidelines (CPGs) for the treatment of AR in children. The study aimed to develop an evidence-based CPG for the treatment of AR in children with TCM. Systematic literature research, expert questionnaire, and clinical evaluation after three rounds of surveys were adopted to form recommendations for treating children with AR using the Delphi method. Depending on the clinical manifestations, we finally recommended two decoctions with two Chinese patent medicines for an acute attack of AR and two decoctions for a chronic period of AR. For the acute attack of AR in children, Xinyi Qingfei decoction, Wenfei Zhiliu decoction, Xinqin granules, and Xinyi Biyan pills were suggested, whereas for the chronic period of AR, Buzhong Yiqi and Jingui Shenqi decoctions were recommended. The four external treatment methods suggested for the prevention and care of AR were body acupuncture, moxibustion, auricular point pressing, and acupoint application. The recommended levels of the suggested TCM strategies ranged from Grade B to D, indicating the weakness of the recommendations. TCM has the potential to offer new insights into phenotypes and the management of AR worldwide; however, more high-quality clinical studies are needed to improve the quality of evidence.     

Diagnostic value of RASSF1A hypermethylation in colorectal cancer: a meta-analysis

Purpose

Ras association domain family 1 isoform A (RASSF1A), a member of Ras association domain family, plays an important role in tumorigenesis. The goal of our meta-analysis was to assess the diagnostic value of RASSF1A hypermethylation in colorectal cancer (CRC).