淋巴毒素α Nco Ⅰ基因多态性与冠心病的相关研究

目的研究我国汉族LT-α NcoⅠ基因多态性与冠心病遗传易感性之间的相关性。方法选取家族史阳性的汉族冠状动脉粥样硬化患者57例,家旅史阴性的汉族正常对照62例,采用聚合酶链反应-限制性片断长度多态分析（PCR—RFLP）的方法,分析LT-α基因型以及基因频率分布。结果LT-α NcoⅠ基因多态性含有两个等位基因（LT-α1和LT-α2）及三种基因型（纯合子LT-α1/1和LT-α2／2,杂合LT-α1／2）;冠心病组的LT-α的基因型与正常对照组差异无显著性（χ^2=1．479,P〉0．05）;LT-α的基因型与冠状动脉狭窄程度差异无显著性（χ^2=6．495,P〉0．05）。结论LT-α NcoⅠ基因多态性与冠心病的遗传易感性无相关性,LT-α的基因型与冠状动脉狭窄程度亦无相关性。     

TNF-α-308位点多态性与肺癌易感性关系的Meta分析

目的 系统评价TNF-α-308多态性与肺癌发病风险的相关性.方法 计算机检索PubMed、EMbase、WanFang、CNKI,查找国内外关于TNF-α-308多态性与肺癌易感性关系的病例对照研究,检索时限为建库至2014年2月20日.由2名评价者根据纳入与排除标准筛选文献,提取并评价资料后,采用RevMan 4.2软件及Stata 10.0软件进行Mete分析.结果 最终纳入13个研究,其中包括病例组患者1904例,对照组正常人1699例,经异质性检验,各研究间无统计学异质性（P＞0.1）固定效应模型Meta分析结果显示：对于总体人群而言,TNF-α-308与肺癌易感性关联有统计学意义（OR=1.74,95％ CI：1.17 ～ 2.57,P=0.006）.在研究人群种族基础上进行亚组分析显示：在高加索人群中,TNF-α-308与肺癌易感性关联无统计学意义（OR=0.97,95％ CI：0.56～1.66,P=0.91）;在亚洲人群中,TNF-α-308与肺癌易感性关联有统计学意义（OR=3.08,95％ CI：1.51～6.26,P=0.002）.结论 在亚洲人群中,TNF-α-308位点可能是增加肺癌患病风险的危险因素,在高加索人群中,TNF-α-308多态性与肺癌的发病风险不存在相关性.     

白细胞介素-10和肿瘤坏死因子基因多态性与湖北汉族人群胃十二指肠疾病及幽门螺杆菌感染的相关性

目的 研究我同湖北汉族人群IL-10及TNF的基因多态性与胃十二指肠疾病及幽门螺杆菌(Hp)感染的关系.方法 采用病例财照研究和聚合酶链反应.限制性片段长度多态性(PCR-RFLP)方法检测605例胃十二指肠疾病患者(包括196例慢性胃炎、189例胃十二指肠溃疡及220例胃癌患者)和624例健康对照者中IL-10基因启动子区3个位点(IL-10-1082/-819/-592)的等位基因型和TNFα-308、LTα(淋巴毒素α,亦称TNFβ)Nco Ⅰ、AspH Ⅰ双等位基因型分布;用ELISA法检测血清中Hp-IgG及cagA-IgG抗体水平.结果 (1)IL-10-1082 AG+GG基因型在胃癌组、慢性胃炎组及胃十二指肠溃疡组(非胃癌组)、健康对照组分布频率分别为20.0%、7.5%、6.0%和5.0%,IL-10-1082 AG+GG基因型分布在非胃痛组及健康对照组之间差异无统计学意义(P>0.05),而胃癌组高于非胃癌组(P<0.05)及健康对照组(P<0.05),其差异均有统计学意义.胃癌组中IL-10-592及-819两个位点与非胃癌组及健康对照组比较,基因型分布差异无统计学意义(P>0.05).IL-10-819位点与IL-10-592位点基因型分布频率一致.(2)胃癌组与其余3组比较,IL-10-1082 AG+GG基因型且Hp阳性的分布频率的差异有统计学意义(P<0.05).(3)LTα Nco Ⅰ AG基因型在Hp阳性胃癌患者中(66.7%)高于Hp阳性的健康对照组(47.8%),差异有统计学意义(P<0.05),该基因型与其他胃十二指肠疾病尤相关性.TNFα-308、LTα AspH Ⅰ与Hp感染及胃十二指肠疾病亦无相关性.结论 (1)IL-10-1082 AG+GG基因型与湖北地区汉族人群胃癌发生有相关性.(2)IL-10-1082 AG+GG基因型和LTα Nco Ⅰ AG基因型与湖北汉族人群Hp阳性胃癌有相关性.     

云南哈尼族彝族幽门螺杆菌感染人群胃癌易感基因研究

胃癌的发生是生物、环境、宿主等因素共同作用的结果．宿主遗传因素与幽门螺杆菌（H．pylori）感染后的不同临床结局有关。目的：筛选云南红河州哈尼族彝族Hpylori感染人群的胃癌易感基因,探讨不同基因型和等位基因与H．pylori感染宿主胃癌发病风险的相关性。方法：通过PubMed、CNKI和HapMap数据筛选出12个中国人群胃癌易感相关单核苷酸多态性（SNP）位点,以芯片技术对哈尼族彝族H．pylori感染慢性胃炎和胃癌患者的这些SNP位点进行分型。结果：IL-1β-3IC／T和IL-1β-511C/T位点存在完全连锁不平衡．其基因型（P=0．014）和等位基因频率（P=0．049）在胃癌和胃炎组中有显著差异,-511CT／-31CT（OR=2．256,95％CI：1．048～4．855）和-511TT/-31CC（OR=3．312,95％CI：1．462～7．502）基因型胃癌发病风险显著高于-511CC／-31TT基因型。COX-2．899C／G位点基因型频率在胃癌和胃炎组中有显著差异（P=0．033）,GG基因型胃癌发病风险显著高于CG基因型（OR=2．796,95％CI：1．053～7．423）。TNF—α-238A／G位点基因型频率在胃癌和胃炎组中有显著差异（P=0．037）．AA、AG基因型胃癌发病风险显著高于GG基因型（OR=2．600．95％CI：1．130～5．985）。结论：IL-1β-31C、IL-1β-511T等位基因和COX-2—899GG基因型可增高云南红河州哈尼族彝族Hpylori感染人群的胃癌发病风险,TNF-α-238GG基因型对上述人群的胃癌发生具有保护作用。     

肿瘤坏死因子α-308基因多态性与慢性阻塞性肺疾病易感性的荟萃分析

目的运用荟萃分析方法综合评价肿瘤坏死因子α基因启动子308位（TNF-α-308）G／A基因型与慢性阻塞性肺疾病（COPD）的相关性。方法检索Medline和中国生物医学光盘数据库，获取TNF-α-308基因多态性与COPD易感性的病例一对照研究，使用统一的表格提取资料，应用RevMan 4．2软件进行统计学处理。结果检索的17篇文献中有18个病例-对照研究，共有1606例COPD患者（亚洲人666例，白种人940例）和2551例对照（亚洲人898例，白种人1653例）被纳入荟萃分析。亚洲人群等位基因TNF2与COPD密切相关（OR=2．62，95％CI为2．00～3．43），基因型TNF1／2及基因型TNF1／2合并TNF2／2者的COPD易感性高于基因型TNF1／1者（OR=2．44，95％CI为1．79-3．33及OR=2．78，95％CI为2．06～3．75），校正吸烟前后的敏感性结果相似。白种人等位基因TNF2与COPD易感性无相关性（OR=0．97，95％CI为0．84～1．14），基因型TNF1／2及基因型TNF1／2合并TNF2／2者的COPD易感性与基因型TNF1／1者相似（OR=0．96，95％CI为0．79～1．16及OR=1．03，95％CI为0．86～1．25），校正吸烟前后的敏感性结果相似。结论在亚洲人群中TNF2等位基因是COPD的危险因素，在白种人群中TNF-α-308的G／A基因多态性与COPD易感性无关。     

TLR4基因多态性与慢性胃炎幽门螺杆菌感染无相关性

目的:研究我国湖北汉族人群TLR4基因 Asp299Gly多态性与慢性浅表性胃炎及幽门螺杆(H pylori)感染的关系．方法:采用病例-对照研究和多聚酶链反应-限制性片段长度多态性(PCR-RFLP)方法,检测 115例慢性浅表性胃炎患者115例和正常对照者2644例的TLR4等位基因Asp299Gly基因型分布．结果:慢性浅表性胃炎患者的H pylori阳性率 89．6％,显著高于正常对照组61．7％(P<0．000 1, OR=5．319．95％CI:2．784-10．162)．在H pylori 感染相关性的慢性胃炎组和正常对照组中 TLR4基因Asp299Gly基因型所有个体均为 AA纯合子,未发现的突变型,其基因型、等位基因以及携带者频率总体分布无显著性差异．结论:TLR4基因Asp299Gly基因多态性与H pylori相性慢性胃炎无明显相关性．     

TNF-α基因启动子多态性与HBV感染转归的关系

目的:探讨中国汉族人肿瘤坏死因子-α(tumor necrosisfactor-α,TNF-α)基因启动子单核苷酸多态性与乙型肝炎病毒(hepatitis B virus,HBV)感染结果之间的关系.方法:慢性乙型肝炎患者131例,HBV感染自愈者165组应用聚合酶链反应-限制性片段长度多态性分析方法,检测HBV感染自愈者和慢性乙型肝炎患者TNF-α基因启动子-238G/A,-308G/A,-857C/T和-863C/A单核苷酸多态性位点基因型.结果:对慢性乙型肝炎组和HBV感染自愈组人群TNF-α基因启动子区域的-238G/A,-308G/A,-857C/T和-863C/A 4个SNP位点进行基因型分析,共发现12种启动子基因型,以GG·GG·CC·CC,GG·GG·CC·CA,GG·GG·CT·CC和GG·GA·CC·CC基因型多见,约占85%.通过对慢性乙型肝炎患者和HBV感染自愈者TNF-α基因启动子4个位点基因型联合分析发现,GG·GG·CC·CC,GG·GG·CC·CA和GG·GA·CC·CC基因型在慢性乙型肝炎组和HBV感染自愈组分布差异有显著性,其中携带GG·GG·CC·CC基因型的个体患慢性乙型肝炎的机会比(odds ratio,OR)为2.15,95%可信区间为1.34-3.45;而携带GG·GG·CC·CA或GG·GA·CC·CC基因型的个体患慢性乙型肝炎的OR分别为0.48(95%可信区间为0.27-0.86)和0.35(95%可信区间为0.14-0.89).HBV感染的清除可能与GG·GG·CC·CA(X2=6.14,P=0.013＜0.05)和/或GG·GA·CC·CC(X2=5.18,P=0.023＜0.05)基因型有关.进一步对各位点单核苷酸多态性分析发现,慢性乙型肝炎患者和HBV感染自愈者TNF-α基因启动子-238G/A、-857C/T位点基因型分布频率差异无显著性,而-308G/A,-863C/A位点基因型分布频率差异有显著性(-308G/A位点,X2=6.53,P=0.011＜0.05,OR=3.05;-863C/A位点,X2=4.33,P=0.037＜0.05,OR=1.69).结论:TNF-α基因启动子-308G/A、-863C/A位点多态性与中国汉族人HBV感染后的结果有关,其中TNF0-α308G/A和/或-863C/A位点A等位基因的存在可能有利于HBV感染的清除.     

白细胞介素-10和肿瘤坏死因子基因多态性与湖北汉族人群胃十二指肠疾病及幽门螺杆菌感染的相关性

Objective To study the distribution of IL-10 and TNF gene polymorphisms in patients with gastroduodenal diseases in Hubei Han ethnic and their association with Helicobacter pylori (Hp) infection. Methods Six hundred and five patients with gastroduedenal diseases (196 chronic gastritis, 189 gastroduodenal ulcer and 220 gastric cancer) as well as 624 healthy controls were genotyped with PCR-RFLP method for IL-10-1082,-819,-592 and TNFα-308, lymphotoxin-α (LTα) Nco Ⅰ and AspH Ⅰ gene polymorphisms. Hp infection status was determined with ELLS& Results (1) There was significant difference of IL-10-1082 AG + GG genotype among the gastric cancer group with the non-malignant gastric diseases groups and healthy control group (P <0. 05). There was no significant difference of IL-10-592 and -819 gene polymorphisms among gastric cancer patients,non-malignant gastric disease patients and healthy controls (P>0. 05). The genotype frequencies of IL-10-819 were the same as those of IL-10-592. (2) Frequency of IL-10-1082 AG + GG genotype in gastric cancer patients with positive Hp was significantly higher than that in the other three groups (P < 0. 05). (3) Frequency of LTα Nco I AG genotype in gastric cancer patients with Hp infection was signiilcandy higher than that in Hp positive healthy controls (P < 0. 05). There were no other associations between TNFα-308, LTα Nco Ⅰ and AspH Ⅰ gene polymorphisms and Hp infection in gastroduodenal diseases. Conclusions (1) Allele AG + GG of IL-10-1082 was associated with gastric cancer in Han nationality of Hubei province. (2) IL-10-1082 AG + GG,LTct Nco ⅠAG heterozygous genotype may be associated with Hp infection in patients with gastric cancer in Han nationality of Hubei province.     

白细胞介素-10和肿瘤坏死因子基因多态性与湖北汉族人群胃十二指肠疾病及幽门螺杆菌感染的相关性

Objective To study the distribution of IL-10 and TNF gene polymorphisms in patients with gastroduodenal diseases in Hubei Han ethnic and their association with Helicobacter pylori (Hp) infection. Methods Six hundred and five patients with gastroduedenal diseases (196 chronic gastritis, 189 gastroduodenal ulcer and 220 gastric cancer) as well as 624 healthy controls were genotyped with PCR-RFLP method for IL-10-1082,-819,-592 and TNFα-308, lymphotoxin-α (LTα) Nco Ⅰ and AspH Ⅰ gene polymorphisms. Hp infection status was determined with ELLS& Results (1) There was significant difference of IL-10-1082 AG + GG genotype among the gastric cancer group with the non-malignant gastric diseases groups and healthy control group (P <0. 05). There was no significant difference of IL-10-592 and -819 gene polymorphisms among gastric cancer patients,non-malignant gastric disease patients and healthy controls (P>0. 05). The genotype frequencies of IL-10-819 were the same as those of IL-10-592. (2) Frequency of IL-10-1082 AG + GG genotype in gastric cancer patients with positive Hp was significantly higher than that in the other three groups (P < 0. 05). (3) Frequency of LTα Nco I AG genotype in gastric cancer patients with Hp infection was signiilcandy higher than that in Hp positive healthy controls (P < 0. 05). There were no other associations between TNFα-308, LTα Nco Ⅰ and AspH Ⅰ gene polymorphisms and Hp infection in gastroduodenal diseases. Conclusions (1) Allele AG + GG of IL-10-1082 was associated with gastric cancer in Han nationality of Hubei province. (2) IL-10-1082 AG + GG,LTct Nco ⅠAG heterozygous genotype may be associated with Hp infection in patients with gastric cancer in Han nationality of Hubei province.     

白细胞介素-10和肿瘤坏死因子基因多态性与湖北汉族人群胃十二指肠疾病及幽门螺杆菌感染的相关性

Objective To study the distribution of IL-10 and TNF gene polymorphisms in patients with gastroduodenal diseases in Hubei Han ethnic and their association with Helicobacter pylori (Hp) infection. Methods Six hundred and five patients with gastroduedenal diseases (196 chronic gastritis, 189 gastroduodenal ulcer and 220 gastric cancer) as well as 624 healthy controls were genotyped with PCR-RFLP method for IL-10-1082,-819,-592 and TNFα-308, lymphotoxin-α (LTα) Nco Ⅰ and AspH Ⅰ gene polymorphisms. Hp infection status was determined with ELLS& Results (1) There was significant difference of IL-10-1082 AG + GG genotype among the gastric cancer group with the non-malignant gastric diseases groups and healthy control group (P <0. 05). There was no significant difference of IL-10-592 and -819 gene polymorphisms among gastric cancer patients,non-malignant gastric disease patients and healthy controls (P>0. 05). The genotype frequencies of IL-10-819 were the same as those of IL-10-592. (2) Frequency of IL-10-1082 AG + GG genotype in gastric cancer patients with positive Hp was significantly higher than that in the other three groups (P < 0. 05). (3) Frequency of LTα Nco I AG genotype in gastric cancer patients with Hp infection was signiilcandy higher than that in Hp positive healthy controls (P < 0. 05). There were no other associations between TNFα-308, LTα Nco Ⅰ and AspH Ⅰ gene polymorphisms and Hp infection in gastroduodenal diseases. Conclusions (1) Allele AG + GG of IL-10-1082 was associated with gastric cancer in Han nationality of Hubei province. (2) IL-10-1082 AG + GG,LTct Nco ⅠAG heterozygous genotype may be associated with Hp infection in patients with gastric cancer in Han nationality of Hubei province.     

青少年高血压的研究进展

随着人们生活和行为方式的改变,高血压发病明显呈年轻化趋势。在青少年时期识别高血压病高危人群有助于早期进行有效干预和治疗,降低未来高血压的发生率及其严重性。现试从青少年高血压的诊断、发病因素、特点、治疗策略等方面的研究进展作一综述。     

Morbidity in cardiovascular diseases in immigrants in Sweden

INTRODUCTION: Although immigration to Sweden has increased in the last few decades, the incidence rates of cardiovascular disease and coronary heart disease in immigrants are unknown. The aim of the present study is to estimate whether place of birth affects the incidence rates of cardiovascular disease and coronary heart disease. MATERIAL AND METHODS: The study was designed as a follow-up study on morbidity in cardiovascular disease and coronary heart disease between 1 January 1997 and 31 December 1998, including three and a half million persons with age range 35-64 years, of whom 550 000 were born abroad, from the database MigMed consisting of the whole Swedish population. Incidence rates and relative risks were estimated by indirect standardization and a proportional hazard model. RESULTS: The age-adjusted risk of coronary heart disease was higher in most foreign-born groups than in Swedes. For example, in nine of 12 male groups, the relative risks varied between 1.1 and 2.2, and in seven of 12 female groups, the relative risks varied between 1.4 and 2.5. When also adjusting for level of education and employment status, the risks were still high, but on a lower level. CONCLUSIONS: Foreign-born people possess an over-risk of cardiovascular or coronary heart disease(CVD/CHD) compared with Swedish-born persons, also when level of education and employment status are taken into account.     

C·肉毒杀鼠素(冻干剂)应用研究

目的为研究C·肉毒杀鼠索对杀灭达乌尔黄鼠(简称黄鼠)的大面积应用情况和对家畜、家禽的毒害作用,进行了C·肉毒杀鼠素的应用研究.方法大面积投毒采用ES-2药饵撒播机[1],间隔约80m进行条投.羊、鸡采用直接灌胃.结果大面积应用的灭鼠率为83.72%.对羊、鸡最高剂量分别为500万MLD、150万MLD,均未出现中毒现象.结论 C·肉毒杀鼠素是较为理想的草原大面积杀灭黄鼠的理想、首选药物.     

Pulmonary sporotrichosis in Oklahoma in susceptibilities in vitro

Six cases of pulmonary sporotichosis were observed in 2 institutions in Oklahoma City, Okla. Three of the patients were treated with iodides with or without surgery. Although one patient required a second course of iodides, the patients have remained well after at least 34 months of follow-up. Three patients treated with amphotericin B, single course as well as multiple courses, and other antifungal agents (hydroxystilbamidine and miconazole) have all relapsed. These cases and a reviewed of more than 40 cases of pulmonary sporotrichosis susceptibilities of Sporothrix schenckii that we observed in vitro suggest that amphotericin B is not an effective agent for the treatment of pulmonary sporotrichosis. It is our opinion that the treatment of choice for pulmonary sporotrichosis is a supersaturated solution of potassium iodide. If the patient is allergic to the medication or fails to respond, then a combination of amphotericin B plus flucytosine may be tried.