湖北土家族人群HLA-A*0201～0207与宫颈癌关联的研究

目的　探讨湖北土家族人群HLA A 0 2 0 1～ 0 2 0 7与宫颈癌的关联性。方法　采用PCR/SSOP的HLA基因分型技术 ,利用一对引物扩增HLA A位点 2、 3外显子 ,并通过 31个地高辛标记的寡核苷酸探针分别与 192例中性外周血样本 ,其中包括 4 2例宫颈癌样本DNA扩增产物杂交 ,进行HLA A 0 2 0 1～0 2 0 77种等位基因分型 ;采用卡方检验 ,比较宫颈癌病例组和正常对照组中HLA A 0 2 0 1～ 0 2 0 7构成比的差异。结果　HLA A 0 2 0 2和HLA A 0 2 0 6在正常对照组和宫颈癌患者组的构成比有显著性差异 (P <0 0 5 ) ,相对危险度分别为HLA A 0 2 0 2OR =0 36 (95 %CI =0 13～ 0 95 ) ,HLA A 0 2 0 6OR =0 2 1(95 %CI =0 0 6～ 0 81)。结论　HLA A 0 2 0 2和HLA A 0 2 0 6对于宫颈癌发生的易感性可能有保护作用 ,本次研究未发现其余 5种等位基因与宫颈癌有关联。     

HLA-A等位基因及超型与宫颈癌易感性的关联

目的 研究湖北土家族HLA-A等位基因及超型与HPV感染、宫颈癌的关联。方法 在居住地及年龄相匹配的条件下,HPV感染阳性的癌症组分别与HPV感染阳性的对照组和HPV感染阴性的对照组进行比较。癌症组100例（其中HPV感染阳性者86例）,对照组187例（其中HPV感染阳性者95例,HPV感染阴性者92例）。采用SBT法对最具多态性的HLA-A位点的 2、3外显子进行基因型分析。结果,HPV阳性宫颈癌组与HPV阳性对照组比较,超型HLA-A3 （pcorrected=0.015,OR=2.01,95％CI＝1.26-3.21）可增加宫颈癌的易感性。HPV阳性宫颈癌组与HPV阴性对照组比较,HLA-A*0206（pcorrected=0.025 ,OR=0.20,95％CI＝0.07-0.58）超型HLA-A2(pcorrected=0.005, OR=0.57,95％CI＝0.37-0.88）可降低宫颈癌的易感性,而超型HLA-A3 （pcorrected=0.005, OR=2.36, 95％CI＝1.45-3.85) 同样增加宫颈癌的易感性。结论：超型HLA-A3为宫颈癌的风险因子。     

α-共核蛋白基因启动子区微卫星多态与晚发散发性帕金森病的关联研究

目的　探讨α 共核蛋白基因启动子区微卫星多态与晚发散发性帕金森病 (Parkinson’sdis ease ,PD)发病风险间的关系。方法　采用扩增片段长度多态方法和微卫星荧光标记 半自动基因分型技术 ,对上海汉族 13 5例晚发性散发性PD患者和 170名正常人进行α 共核蛋白基因微卫星多态分析 ,并通过比值比 (oddsratios ,OR)与PD进行相关分析。结果　病例 对照组间各等位基因频率分布差异有显著性( χ2 =14 .73 ,df =7,P =0 .0 4)。PD组 2 69bp等位基因频率最高 ( 0 .3 89) ,对照组中 2 71bp等位基因频率最高 ( 0 .3 5 9)。≤ 2 67bp等位基因与PD呈正关联 (OR =5 .2 2 8,95 %CI :1.2 48～ 2 7.2 0 2 ,χ2 =6.416,P =0 .0 11) ,而 2 73bp等位基因与PD呈负关联 (OR =0 .63 8,95 %CI :0 .44 0～ 0 .92 6,χ2 =5 .64 4,P =0 .0 18) ;病例 对照组间各基因型的分布差异无显著性 ( χ2 =16.3 68,df =12 ,P =0 .175 )。但含有≤ 2 67bp等位基因的基因型可增加PD的发病风险 (OR =4.5 94,95 %CI :0 .94～ 2 2 .49,χ2 =4.2 2 4,P =0 .0 4)。PD组杂合度为 40 % ,对照组为 5 0 %。结论　α 共核蛋白基因启动子区的微卫星多态与晚发性散发性PD的发病风险有关。     

云南汉族人群CD80基因多态性与宫颈癌发生发展的相关性研究

目的探讨CD80基因多态性与云南汉族人群宫颈癌发生发展的相关性。方法本研究选取云南地区汉族人群癌前病变(CINⅢ期)患者126例,宫颈癌患者450例,健康体检人群500例,采用TaqMan探针基因分型方法对CD80基因中的4个SNP位点rs16829980(AG)、rs16829984(GC)、rs41271391(GT)和rs41271393(CT)进行基因分型,并研究其等位基因、基因型及所构建的单倍型在CINⅢ期患者、宫颈癌患者和健康对照人群中分布频率的差异。结果 rs16829984(GC)等位基因C和G在CINⅢ期组和对照组、癌症组和对照组中分布频率的差异具有统计学意义(P=0.026和0.006)。rs16829980(AG)中等位基因A和G在CINⅢ期组和癌症组中分布频率的差异具有统计学意义(P=0.038)。而rs41271391(GT)和rs41271393(CT)的等位基因和基因型在病例组(CINⅢ期组和癌症组)和对照组中的分布频率的差异无统计学意义(P0.05)。单倍型分析结果显示AGGC单倍型可能是宫颈癌发生的危险因素(OR=1.449;95%CI:1.096-1.915)。结论位于CD80基因启动子区域的SNP位点rs16829984(GC)等位基因C可能是云南汉族人群宫颈癌发生的保护性因素(OR=0.700;95%CI:0.510-0.960),rs16829980(AG)等位基因A可能是云南汉族人群CINⅢ期向宫颈癌发展的保护性因素(OR=0.703;95%CI:0.503-0.982)。     

VEGF基因单核苷酸多态性与中国北方汉族人SLE易感性的相关性研究

目的:研究血管内皮生长因子(VEGF)基因单核苷酸多态性(SNP)与中国北方汉族人系统性红斑狼疮(SLE)易感性的相关性。方法:应用Sequenom飞行时间质谱技术检测44例SLE患者和100例正常对照者外周血VEGF基因的SNPs,选择6个VEGF基因的SNP位点:rs2010963、rs3024994、rs3025000、rs3025010、rs3025035和rs833070进行基因分型,用SPSS 11.5软件对数据资料进行统计分析。结果:SLE患者VEGF多态性位点rs2010963、rs3024994、rs3025000、rs3025010、rs3025035的基因型频率及等位基因频率与正常对照组比较差异无统计学意义(P0.05);VEGFrs833070 A等位基因频率明显高于对照组(31.2%vs20%,χ2=4.547,P=0.033,OR=1.818,95%CI 1.045-3.162)。rs833070 G等位基因在SLE组中关节炎与无关节炎组中频率有显著差异(56%vs80.4%,χ2=5.613,P=0.018,OR=0.336,95%CI 0.134-0.843),rs833070 GG基因型频率明显低于无关节炎组(GGvsAG+AA:28%vs65.2%,χ2=6.684,P=0.010,OR=0.207,95%CI 0.061-0.705),而VEGF rs833070位点基因型、等位基因型的频率与患者血清中ds-DNA抗体、抗Sm抗体、狼疮性肾炎、间质性肺疾病的发生无相关性(P0.05)。结论:VEGF基因SNP点rs833070与北方汉族人SLE发病易感性相关,rs833070位点A等位基因可能增加了SLE患病的易感性,而rs833070 GG基因型及G等位基因型可能是SLE合伴关节炎的保护性基因。     

Interleukin-18基因启动子区单核苷酸多态性与肝细胞癌遗传易感性关系的研究

目的探讨白细胞介素18(IL-18)基因启动子区-607C/A(rs1946518)和-137G/C(rs187238)单核苷酸多态性(SNP)与肝细胞癌(肝癌)遗传易感性的关系。方法应用序列特异性引物-聚合酶链反应(PCR-SSP)技术,检测228例肝癌患者和300例健康对照者IL-18基因启动子-607C/A(rs1946518)、-137G/C(rs187238)单核苷酸多态性位点基因型,分析肝癌患者和对照组基因型频率和等位基因频率分布。结果肝癌组SNP位点rs187238 G等位基因的频率明显高于对照组(OR=1.1891,95%CI=1.0106-1.5633,P=0.026)。携带rs187238 GG基因型的肝癌患者较多(OR=1.5168,95%CI=1.1490-1.8322,P=0.010)。分层分析发现,rs1946518位点上AA基因型与肝癌发病的关联在饮酒的肝癌患者中更加显著(P=0.024),而且rs187238位点上GC/CC基因型与肝癌发病的关联在出现肝癌复发的患者中更加显著(P=0.005)。结论 IL-18基因启动子区-137G/C(rs187238)GG基因型与肝癌遗传易感性有关联。而rs1946518位点AA基因型和rs187238位点GC/CC基因型分别与肝癌患者饮酒和肝癌复发有关联。     

PD-1基因遗传变异与上皮性卵巢癌发病风险的关联

目的探讨细胞程序性死亡受体-1(PD-1)基因遗传变异与上皮性卵巢癌发病风险的关系。方法用聚合酶连接酶检测反应技术(PCR-LDR)检测分析620例上皮性卵巢癌患者和620名对照妇女PD-1.1 A/G和PD-1.5 C/T两个单核苷酸多态位点的基因型和等位基因频率。结果 PD-1.1 A/G多态的AA、AG、GG 3种基因型频率在病例组和对照组中具有显著差异(P0.05)。比较AA基因型携带者,AG和GG基因型携带者显著降低上皮性卵巢癌的发病风险(OR=0.71,95%CI=0.54~0.94和OR=0.68,95%CI=0.50~0.94)。病例组中G等位基因频率明显低于对照组(P0.05)。与A等位基因相比,G等位基因显著降低妇女上皮性卵巢癌的发病风险(OR=0.83,95%CI=0.71~0.97)。PD-1.5 C/T多态C和T等位基因频率在2组间具有统计学意义,病例组中T等位基因频率明显低于对照组(P0.05)。与C等位基因相比,T等位基因显著降低妇女上皮性卵巢癌的发病风险(OR=0.82,95%CI=0.69~0.98)。结论 PD-1.1 A/G和PD-1.5 C/T两个单核苷酸多态位点可能是中国北方妇女上皮性卵巢癌发病风险的分子标志物。     

中国九江汉族人群TLR2基因单核苷酸多态性与Graves病易感关系

目的:研究九江汉族人群TLR2基因多态性与Graves病的易感关系。方法:本研究采用特异性引物PCR方法,基于病例-对照研究的实验设计,对333例甲亢病例和368例正常对照的TLR2基因上的rs3804100和rs5743705位点进行了基因分型。结果:患者男女比例约为1∶2.6,女性有更高的患病风险;所有位点均符合哈迪-温伯格平衡。没有在总体病例、对照之间观察到多态位点基因型和等位基因频率的显著差异。然而,在对发病年龄和性别进行分层分析后发现,在GD早发病人中(≤40岁),SNP位点rs3804100的A/A基因型(P=0.013,OR=1.53,95%CI=1.11-2.12)以及A等位基因频率(P=0.020;OR=1.37;95%CI=1.05-1.79)显著高于正常对照组。结论:TLR2基因rs3804100位点的A/A基因型可能会显著增加人群40岁以前患GD的风险。     

青海省妊娠高血压综合征患者瘦素基因启动子区G-2548 A单核苷酸的多态性

目的探讨青海省妊娠高血压综合征(PIH)与瘦素基因启动子区单核苷酸多态性的关系。方法选择青海省PIH患者130例,正常妊娠对照组135例,应用聚合酶链反应-限制性内切酶片段长度多态性(PCRRFLP)方法,分析PIH患者和对照组瘦素基因G-2548 A多态性分型并测序验证。结果 PIH组基因型频率GG型、GA型和AA型分别为53.1%、40%和6.9%,对照组分别为60%、34.1%和5.9%。PIH组和对照组瘦素基因G-2548 A位点等位基因A和G频率分布具有差异性(P0.05),妊娠高血压综合征组G等位基因频率高于对照组(χ2=4.21,P0.05,OR=0.66,95%CI=0.45~0.99)。结论青海省瘦素基因G2548位点G/A基因多态性与其妊娠高血压的易感性有关。G等位基因可能为妊娠高血压综合征的易感基因,A等位基因可能为妊娠高血压综合征的保护基因。     

Level of functioning of siblings and parents of probands of varying degrees of retardation

A further analysis of already published data supports the position that retardates of low ability level less frequently have retarded siblings, retarded parents, and parents low in occupational level than do retardates higher in ability level. The analysis supports the position that there are two types of retarded individuals, persons retarded as a result of gene or chromosomal anomalies, brain injury, etc., who more frequently occur in the lower-level retardate group, and persons whose retardation represents polygenic segregation, who more frequently occur in the higher-level group.     

局部注射辛伐他汀对骨质疏松大鼠股骨髁骨小梁的改建效应

背景：局部注射具有成骨作用的辛伐他汀,可显著增加骨质疏松大鼠股骨颈及股骨髁部的骨密度及力学强度,分析局部注射辛伐他汀对股骨髁骨小梁的影响。 目的：进一步研究骨质疏松大鼠股骨内局部注射辛伐他汀对股骨髁骨小梁的影响。为将辛伐他汀应用于临床骨质疏松局部治疗提供实验基础。 方法：18只雌性SD大鼠双侧卵巢切除后3个月,制备大鼠骨质疏松模型。实验大鼠随机数字表法均分为3组,分别在实验大鼠的右侧股骨髓腔内单次注射辛伐他汀溶液5 mg、10 mg,对照组单纯注射空白载体。分别在注射后1个月处死大鼠并取材。Micro-CT扫描并定量分析骨组织形态变化。 结果与结论：给药后1个月,Micro-CT扫描结果显示,辛伐他汀治疗组的骨微结构参数如骨皮质厚度、骨小梁密度及连接率明显优于对照组。说明疏松骨骼单次注射小剂量辛伐他汀可显著促进股骨髁部骨小梁改建,改善骨骼微结构,可为强化局部、防治骨质疏松骨折的新选择进一步提供实验基础。     

石斛属民族药用植物的分类及生药学研究

中药石斛早在《神农本草经》中就被列为上品,其应用历史悠久,具有养阴生津、补肾益气、润喉护嗓、活血明目、抗癌防老等功效。本文对国内外石斛属民族药用植物的分类及生药学研究进行了综述。     

膝关节骨性关节炎的关节镜治疗体会

目的我科自2001～2005年4月对59例67膝的骨性关节炎（0A），进行关节镜检查及镜下清理术。方法镜检：膝关节骨性关节炎伴不同程度滑膜炎，滑膜皱壁粘连纤维片，关节软骨不同程度破坏。镜下清除增生滑膜，松解粘连，去除剥脱软骨、修复关节面。结果随访2月～4年，平均1.5年，术后综合评估2月～1年，优良率94％；1～2年，优良率79.2％；2年以上优良率54.8％。结论关节镜对膝关节骨性关节炎诊断能提供了比较全面的资料，并对骨性关节炎早期有良好疗效，具有创伤小、恢复快、并发症少和重复治疗等优点。     

Pathways of the realization of immunomodulating effects of neurotransmitters

Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 115, N ^o 4, pp. 401–404, April, 1993     

Anatomical study of distribution of valves of the cutaneous veins of adult''s limbs

Since the cutaneous veins of the four limbs have been used as autogenous grafts in the treatment of cardiovascular disorders, knowledge of distribution of the valves is increasingly required depending upon the use. In the gross anatomical study of distribution of valves of the trunci venae, there has been argument about locational relationships between the venous roots and the valves in the vicinity of the roots and the inter-valvular distance. However, there have been only few reports discussing detailed information about valves of the cutaneous veins of the four limbs. The authors observed patterns of distribution of the cutaneous venous valves of the four limbs of cadavers prepared for practice in anatomy. The following parts were excised from each cadaver: the cephalic, basilic, and the great saphenous veins, which originate from the acral venous network and flow into the proximal deep veins, and the venous roots communicating with these veins. An incision was made on each excised vein in the direction of the long axis under observation with a stereoscopic microscope, and the inter-valvular distance and the distance between the valve and the orifice of venous root in the vicinity of the valve were measured. The inter-valvular distance varied with type of the truncus venae, and it varied according to area even in the same truncus venae.     

Characterization of sterols of three digenetic trematodes of buffalo

Sterols of three digenetic trematodes were isolated and characterized by infrared and 1H nuclear magnetic resonance spectroscopies, and gas-liquid chromatography and gas chromatography-mass spectrometry. Sterols identified were cholesterol, cholestanol, 24-methylcholesterol, 24-methylcholestanol, 24-ethyl-22-dehydrocholesterol, 24-ethyl-22-dehydrocholestanol, 24-ethylcholesterol and 24-ethylcholestanol.     

Mechanisms of generation of slow components of bioelectric activity in diagnostics of functional state of the gastrointestinal tract

New electrophysiologic devices were used for the diagnostics of the state of excitable structures in the gastrointestinal tract and correction of their motor functions. Bioelectrical and biomechanical activities form the basis of functioning of internal organs. The mechanisms of generation of slow bioelectrical activity that are important for clinical and physiological studies are described. One of these mechanisms is a capacitance parametric transducer converting the energy of contractions into specific electric signals reflecting muscle functions. Another mechanism results from slow oscillations of resting potentials of interrelated excitable cells in large neuromuscular structures of internal organs. The elaborated procedure is efficient for preventing early postoperative paresis of the gastrointestinal tract. Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 128, No. 10, pp. 448–452, October, 1999     

胃小弯侧血管弓的MDCT解剖

目的：研究正常胃小弯侧血管弓及其属支血管的多排螺旋CT表现。方法：回顾性分析51例正常成人的上腹部CT资料,观察胃小弯侧血管弓及其属支血管的显示情况、血管弓形态及其与胃壁的关系。结果：51例均显示胃小弯侧血管弓,血管弓贲门部属支、胃体部属支和幽门部属支分别显示46例、15例和10例;血管弓与胃壁紧邻41例。结论：MDCT检查可良好显示正常胃小弯侧血管弓及其属支血管。     

Assessment of the efficacy of treatment of hemangiomas

Assessment of the aftereffects of cryoexposure and ultrahigh-frequency cryoexposure on hemangioma tissue of various types, cavernous and squamous, showed a higher cryogenic effect in hemangiomatous tissue preexposed to ultrahigh-frequency waves. A quantitative criterion is proposed for assessing the efficacy of the studied methods of exposure. Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 119, N ^o 6, pp. 669–672, June, 1995