幽门螺杆菌感染与腹型肥胖的相关性研究

目的探讨幽门螺杆菌(HP)感染与腹型肥胖、代谢综合征(MS)及其组分的相关性。方法以2018年1—12月于北京医院健康管理中心行健康查体并行13C或14C尿素呼气试验检测HP的 1 728例体检者为研究对象, 其中MS者1 210例, 腹型肥胖者1 161例, 空腹血糖升高者1 335例。采用logistic回归模型分析HP阳性与MS及其组分的相关性。结果 1 728例体检者中HP阳性者491例。HP阳性与HP阴性者的MS患病率[73.3%(360/491)比68.7%(850/1 237)]比较, 差异无统计学意义(χ2=3.55, P=0.060)。HP阳性者腹型肥胖、空腹血糖升高率[71.7%(352/491)与80.7%(396/491)]均高于HP阴性者[65.4%(809/1 237)与75.9%(939/1 237)], 差异均有统计学意义(χ2=6.36, P=0.042;χ2=4.50, P=0.034)。HP阳性者非肥胖率低于HP阴性者[28.1%(138/491)与34.3%(424/1 237)], 差异有统计学意义(χ2=6.36, P=0.042)。HP阳性...     

XRCC1单核苷酸多态及单体型分布与乳腺癌的相关研究

目的：探讨X线交叉互补基因1（XRCC1）外显子C26304T、G27466A和G28152A三处最常见的单核苷酸多态性（single nucleotide polymorphism，SNP）与乳腺癌的关系。方法：以自然人群为基础的病例对照研究方法，对84例乳腺癌患者组和以1：3成组频数匹配原则获得的252例对照组进行研究，XRCC1 C26304T、G27466A和G28152A SNPs基因分型采用聚合酶链反应-限制性内切酶片段长度多态性（polymerase chain reaction—restriction fragment length polymorphism，PCR—RFLP）分析方法。单体型分布采用EH linkage software 1．2分析软件进行预测和比较。结果：乳腺癌患者组和对照组吸烟状况分布差异有显著性，病例组曾经或现在吸烟个体比例7．1％明显高于对照组2．0％（P〈0．05），性别、年龄、饮酒状况及一二级亲属家族恶性肿瘤史等基本特征因素分布差异均无显著性（P〉0．05）。C26304T、G27466A和G28152A SNPs多态基因型和多态等位基因分布在两组间分布差异均无显著性（P〉0．05）。经上述因素校正后，XRCC1 SNPs与乳腺癌发病没有显著相关关系（P〉0．05）。应用EH linkage software 1．2单体型分析软件显示，XRCC1 SNPs在各组内均存在连锁不平衡现象，CGG、CGA、CAG和TGG是最常见的4类单体型。单体型组间分布同样不存在显著性差异（P〉0．05）。结论：XRCC1 C26304T、G27466A和G28152A SNPs与乳腺癌的风险没有相关关系，各SNPs存在连锁不平衡现象，CGG、CGA、CAG和TGG是最常见的4类单体型。     

1003名四川人群血清结合珠蛋白型别分析

用聚丙烯酰胺园盘电泳,对四川泸州1003名健康人进行了血清 HP 型别分析。结果 HP2—1型406名、占40.47%,HP2—2型507名、占50.5%,HP1—1型84人、占8.31%,HP0—0型(即先天性无 HP 血症)4人,占0.39%。后者提示在利用 HP 定量作溶贫诊断指标时,应排除先天性无 HP 血症。本组尚发观3例尚未见报道的变异型,同时对 HP 型别的多态性作了论述。     

HLA—及其临床意义的研究进展

HLA- I类分子由经典的 HL A- Ia(HL A- A、B、C)和非经典的 HL A- Ib(HL A- E、F、G)构成。其中 HL A-G作为一种非经典的 MHC- I类分子与经典的 MHC- I类分子相比 ,具有以下特点 :1限制性组织分布 ;2低度多态性 ;3原始转录产物经选择性剪接编码至少 6种亚型 ,即 4种膜结合型 (HL A- G1、G2 、G3 、G4)和两种可溶型 (HL A- G5、G6)。由于 HL A- G最初主要发现在母体胎儿交界处表达 ,故对其在母体胎儿免疫耐受中的作用研究较多。本文就目前国内外对 HL A- G结构、生物学功能及其与肿瘤、器官移植之间关系等方面的研究…     

根除治疗幽门螺杆菌后二种复查检测方法对比

目的：观察幽门螺杆菌患者根除治疗后二种检测方式的假阳性率。方法：用三联疗法对58例幽门螺杆菌感染患者进行1周治疗；治疗后1个月用快速尿素酶试验检测；9个月后用血清HP—Ig—G法检测，阳性者12个月复查；以^14C-尿素试验为对照。结果：58例中血清HP—Ig—G阳性(9个月)10例，12个月阳性6例；快速尿素酶试验阳性3例；^14C-尿素试验2例P9d性，且在其它二种试验中均为P9，性；以^14C-尿素呼吸气试验为对照，血清HP—Ig-G法9个月假阳性率为14．28％，12个月为7.14％；快速尿素酶试验假阳性率为1.78％。结论：快速尿素酶试验假阳性率比血清HP—Ig—G法低，作为根除后检测依据优于后者。     

婴幼儿腹泻A组轮状病毒VP7基因型别的研究

目的：研究武汉地区A组轮状病毒基因VP7基因分型情况。方法：利用聚丙烯酰胺凝胶电泳法将检测出的A组轮状病毒阳性样本用一步多重RT-PCR技术对其进行VP7基因分型研究。结果：武汉地区793份腹泻患儿粪便样本经检测轮状病毒阳性257份，阳性率为32．4％。其中G1型5例(1．9％)，G2型6例(2．3％)，G3型202例(78．6％)，G1与G3混合感染10例(3．9％)，G2与G3混合感染1例(0．4％)，G3与(迅混合感染1例(0．4％)，22例(8．6％)未能分出型别，另外发现非正常G3型10例(3．9％)。结论：武汉地区A组轮状病毒以G3型为主要流行基因型，轮状病毒阳性患儿年龄以7～12个月为主，这对轮状病毒疫苗的研制具有很大的指导意义。     

TPH基因多态性与共患学习困难的儿童注意缺陷多动障碍的相关性

目的 探讨伴和不伴学习困难(LD)的儿童注意缺陷多动障碍(ADHD)及各种亚型ADHD与色氨酸羟化酶(TPH)基因A218C和A-6526G两种多态之间的关联。方法 就132个LD的ADHD核心家系和221个不共患LD的ADHD核心家系的A218C和A-6526G两种多态进行检测,并采用传递不平衡检验(TDT)和单体型分析两种分析方法进行关联分析。结果 TPH基因与共患LD的ADHD相关联(χ^2=9．362,df=3,P=0．025);单体型218A／-6526G在共患LD的ADHD核心家系中传递较少(χ^2=9．252,df=1,P=0．002)。结论 TPH基因及TPH基因的218A／-6526G单体型与共患LD的ADHD相关联。     

HLA-G及其临床意义的研究进展

HLA-I类分子由经典的HLA-Ia(HLA-A、B、C)和非经典的HLA-Ib(HLA-E、F、G)构成.其中HLA-G作为一种非经典的MHC-Ⅰ类分子与经典的MHC-Ⅰ类分子相比,具有以下特点:①限制性组织分布;②低度多态性;③原始转录产物经选择性剪接编码至少6种亚型,即4种膜结合型(HLA-G1、G2、G3、G4)和两种可溶型(HLA-G5、G6).由于HLA-G最初主要发现在母体胎儿交界处表达,故对其在母体胎儿免疫耐受中的作用研究较多.本文就目前国内外对HLA-G结构、生物学功能及其与肿瘤、器官移植之间关系等方面的研究作一综述.     

胃癌组织中幽门螺旋杆菌感染与 COX-2、Tiam1 表达的关系研究简

目的分析不同浸润类型的胃癌患者幽门螺旋杆菌（Helicobacter pylori,HP）感染情况、病灶组织中环氧酶-2（cyclo—oxygen—ase-2,COX-2）和T淋巴瘤侵袭转移诱导因子（T-lymphomin vasion and metastasis1,Tiam1）表达情况以及分析HP感染情况与病灶组织COX-2和Tiaml表达的相关性。方法94例胃癌患者纳入本研究,且以正常患者24例为对照组。苏木精-伊红染色法（hematoxylin—eosin staining,HE）和血清HP抗体检测来评价HP的感染情况,用荧光定量聚合酶链式反应、蛋白质印迹法和免疫组化来分析病灶组织,两个结果最终进行回归分析,得出COX-2和Tiara1与HP感染的相关性。结果胃癌T1患者平均HP抗体浓度为（10．21±2．11）μg／ml,胃癌T2患者平均HP抗体浓度为（19．09±3．61）μg／ml,胃癌T3患者平均HP抗体浓度为（26．82±2．04）μg／ml,胃癌T4患者平均HP抗体浓度为（34．51±4．21）μg/ml。随着血清HP抗体浓度的增加,患者病灶组织的Tiam1mRNA、蛋白表达量和IOD值逐渐上升。COX-2和Tiara1蛋白表达量与血清HP抗体浓度呈正相关性（γ2=0．7485和γ2=0．8084）。结论HP抗体浓度与COX-2或Tiaml的蛋白表达量具有正相关性,HP抗体浓度检测、COX-2和Tiam1表达检测具有潜在的评价胃癌浸润程度的临床价值。     

纤维蛋白原Bβ-455G／A、-854G／A基因多态性与其含量及分子活性的相关性研究

目的探讨血浆纤维蛋白原（Fbg）Bβ-455G／A、-854G／A基因型的分布特征及其基因多态性联合多种生理和环境因素对Fbg浓度和分子活性的影响。方法采用整体抽样的方法选取开滦集团职工1555人,样本均清晨空腹抽取静脉血测定血糖等12项生化指标;应用聚合酶链反应-限制性酶切法进行两位点的基因多态性分析;采用微机辅助血浆Fbg功能自动监测系统测定血浆Fbg浓度和Fbg单体聚合反应速率（FMPV）、最大光密度（Amax）、FMPV／Amax等反映Fbg分子聚合功能参数;并进行体检和问卷调查。结果Bβ—455等位基因G、A频率分布为0．798、0．202,Bβ-854等位基因G．A频率为0．899、0．101。两位点基因连锁不平衡分析为随机分布,两位点等位基因及基因型频率分布与性别无关（P〉0．05）;而高血压病组Bβ—455等位基因G、野生基因型频率均高于无高血压病组（P〈0．05）;B13—455各基因型组间Fbg浓度及分子活性指标均无差异性（P〉0．05）,Bβ—854GA＋AA组Fbg浓度、FMPV／Amax、FMPV及Amax均明显高于GG组（P〈0．01）。结论Bβ—455等位基因G和GG基因型与高血压病有关,但对Fbg浓度和分子活性无明显影响;Bβ-854的变异基因型可以明显影响血浆Fbg浓度和分子聚集活性,但可以通过改变某些生理和环境因素增强或减弱其影响的程度。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.