Association between RAN polymorphisms and susceptibility to hepatitis B related hepatocellular carcinoma in Guangxi

目的 探讨肿瘤相关基因RAN多态性与广西人群乙型肝炎病毒(HBV)相关肝细胞癌(HCC)遗传易感性的相关性.方法 选取位于RAN启动子区rs7132224 和3′非翻译区rs14035两个单核苷酸多态性(SNP)为遗传标记;采用SNPstream对340例HBV相关的HCC和361例对照个体进行基因分型;Logistic 回归分析计算OR和95%CI.结果 ①rs7132224、rs14035和HBV相关HCC遗传易感性相关性评价结果分别为OR=1.43,95%CI=1.04～1.98,P=0.02;OR=1.43,95%CI=0.57～4.11,P=0.40;②对人群进行性别、年龄、吸烟、饮酒状态、一级生物学亲属HCC家族史分层分析,发现rs7132224、rs14035和各亚人群HBV HCC发生均无明显相关性.结论 rs7132224和HBV相关HCC遗传易感性显著相关,而rs14035与HBV相关HCC遗传易感性无显著相关性.rs7132224、rs14035与性别、年龄、饮酒状态、吸烟状态、一级生物学亲属HCC家族史在HBV相关HCC发生风险中无交互作用.     

RAN基因多态性与广西人群乙型肝炎病毒相关肝细胞癌的遗传关联研究

目的探讨肿瘤相关基因RAN多态性与广西人群乙型肝炎病毒(HBV)相关肝细胞癌(HCC)遗传易感性的相关性。方法选取位于RAN启动子区rs7132224和3’非翻译区rs14035两个单核苷酸多态性(SNP)为遗传标记;采用SNPstream对340例HBV相关的HCC和361例对照个体进行基因分型;Logistic回归分析计算OR和95%CI。结果①rs7132224、rs14035和HBV相关HCC遗传易感性相关性评价结果分别为OR=1.43,95%CI=1.04～1.98,P=0.02;OR=1.43,95%CI=0.57～4.11,P=0.40;②对人群进行性别、年龄、吸烟、饮酒状态、一级生物学亲属HCC家族史分层分析,发现rs7132224、rs14035和各亚人群HBV HCC发生均无明显相关性。结论 rs7132224和HBV相关HCC遗传易感性显著相关,而rs14035与HBV相关HCC遗传易感性无显著相关性。rs7132224、rs14035与性别、年龄、饮酒状态、吸烟状态、一级生物学亲属HCC家族史在HBV相关HCC发生风险中无交互作用。     

MicroRNA基因多态性与肝细胞癌遗传易感性的Meta分析

目的综合评价microRNA基因多态性与肝细胞癌(hepatocellular carcinoma,HCC)遗传易感性的关系。方法全面检索相关文献,收集2014年9月前有关microRNA基因多态性与HCC易感性的病例对照研究,使用Stata10.0进行Meta分析。结果最终纳入病例对照研究13项。分析结果显示miR-146aG>C(rs2910164)和miR-196a-2C>T(rs11614913)等位基因多态性与HCC发生风险显著相关,其相对危险度(odds ratio,OR)和95%置信区间(confidence interval,CI)分别为0.92(0.87~0.98)和0.90(0.82~0.98),分层分析结果提示,miR-146a多态性和HCC之间的显著相关性仅存在于男性和亚洲人群中。结论 miR-146a和miR-196a-2基因多态性与HCC的遗传易感性相关,其C和T等位基因会降低HCC的发病风险。     

TLR3 rs3775290与慢性乙型肝炎病毒感染风险的相关性研究

目的:探讨TLR3基因SNP rs3775290与慢性乙型肝炎病毒感染性风险的关系。方法:应用病例对照研究方法,在内蒙古鄂尔多斯市选取172例慢性乙型肝炎患者(作为CHB病例组)和200例健康者(作为对照组)。采用聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)法检测CHB病例组和对照组TLR3基因SNP rs3775290位点的基因多态性。并用非条件性Logisic回归计算比值比(OR)及其95%可信区间(CI)以评估等位基因、基因型与慢性乙肝发病风险的关系。结果:SNP rs3775290位点在对照组中GG、AG、AG基因型的频率分别为50.5%、39.5%、10.0%, CHB病例组GG、AG、AA基因型的频率分别为56.4%、34.9%、8.7%,两组差异无统计学意义(P>0.05)。rs3775290位点在共显性遗传模型、显性遗传模型、隐性遗传模型、超显性遗传模型下均与慢性HBV感染风险无关(P>0.05)。结论:TLR3 rs3775290与内蒙古鄂尔多斯市汉族人群慢性乙型肝炎病毒感染无风险关联。     

多个单核苷酸多态性位点与食管癌和胃癌患病风险的相关性分析

目的 探讨多个单核苷酸多态性与食管癌和胃癌的关系,寻找在中国河南省汉族人群中食管癌和胃癌的共同遗传风险位点.方法 选择河南省肿瘤医院收治的食管癌患者500例,胃癌患者和健康体检者各600例,挑选了7个单核苷酸多态性(SNP)位点,采用Sequenom MassARRAY SNP基因分型技术进行基因分型.通过无条件逻辑回归计算相对优势比(OR)及其95％的置信区间(95％CI).结果 在等位基因模型下,有2个SNP位点与食管癌的患病风险相关,分别是rs4785204(OR=1.43,95％CI:1.12～1.85,P=0.01)和rs4924935位点(OR=o.76,95％CI:0.61～0.99,P=0.04).有4个SNP位点与胃癌的患病风险相关,分别是rs13361707(OR=1.23,95％CI.1.13～1.56,P=0.00)、rs4779584(OR=1.25,95％CI.1.11～1.58,P=0.04)、rs4785204(OR=1.24,95％CI:1.03～1.49,P=0.03)和rs4924935位点(OR=0.76,95％CI:0.60～0.99,P=0.04).在遗传模型分析中,发现有4个位点与食管癌的患病风险明显相关(P＜0.05),分别是rs6687758、rs401681、rs4785204和rs4924935位点;有3个位点与胃癌的患病风险相关(P＜0.05),分别是rs13361707、rs4779584和rs4785204位点.结论 中国河南省汉族人群中多个SNP位点与食管癌和胃癌的遗传易感性有关联,rs4785204和rs4924935位点的遗传变异可能同时在食管癌和胃癌的发生、发展中起到重要作用.     

白细胞介素-1β基因多态性与新型甲型H1N1流感的关系

目的 探讨白细胞介素-1β(IL-1β)基因单核苷酸多态性(SNP)与新型甲型H1N1流感易感性的关系.方法针对IL-1β基因5’端的4个SNP位点(rs1143623,rs1143639,rs16944,rs3917345),使用飞行时间质谱分析技术(TOF-MS)对167例H1N1流感组患者和192例健康对照组人群检测其基因多态性.结果 rs16944有A和G两种等位基因,H1N1组A等位基因频率为61.9％,对照组为49.5％,差异有统计学意义(x2=10.761,P=0.001,OR=0.602,95％CI 0.444～0.816);rs1143639有G和A两种等位基因,G等位基因频率在H1N1组中为95.5％,对照组为98.7％,差异也有统计学意义(x2=6.708,P=0.0096,OR=3.564,95％CI 1.281～9.917);其余两个位点在两组人群间无统计学意义.结论 rs16944和rs1143639位点与新型甲型H1N1流感易感性相关.     

APEX1单核苷酸多态性与肝癌易感性关系的研究

目的 探讨中国福建人群APEX1单核苷酸多态性(SNP)与肝细胞癌(HCC)易感性的关系. 方法 应用连接酶检测反应(LDR)及直接测序法检测APEX1 rs2307486、rs1130409及rs33956927 3个SNP位点,并进行连锁不平衡及单倍型分析,探讨3个SNP在福建HCC人群中的分布情况,并分析其与该人群HCC易感性的关系. 结果 相对于GG基因型,rs33956927位点的GA基因型增加了患HCC的风险(P=0.002),而rs2307486和rs1130409多态性与HCC易感性无关(P＞0.05). 结论 APEX1 rs33956927多态位点携带GA基因型人群可能对HCC更易感,APEX1 rs33956927多态性可作为筛查HCC好发的危险因素;rs2307486和rs1130409多态性与HCC的发生无关.     

CTLA-4基因rs231775位点多态性与原发性高血压易感性的关系

目的:探讨细胞毒性T淋巴细胞相关抗原4(CTLA-4)基因rs231775位点多态性与原发性高血压(essential hypertension,EH)易感性的关系.方法:采用病例一对照研究方法,运用基质辅助激光解析电离飞行时间质谱技术(MALDI-TOF-MS)对406例EH患者(病例组)和723例健康对照者(对照组)的CTLA-4基因rs231775位点进行多态性检测,分析基因型频率及等位基因频率在病例组和对照组中的分布,研究其基因型和等位基因与EH易感性的关系.结果:CTLA-4基因rs231775位点的基因型频率及等位基因频率在病例组和对照组中的分布差异无统计学意义(P＞0.05);与AA基因型相比,AG或者GG基因型与EH患病风险无统计学关联(校正OR=0.751,95％CI 0.498～1.134,P=0.174;校正OR=0.772,95％CI 0.505～1.179,P=0.230),携带等位基因G亦与EH患病风险无关联(校正OR=0.760,95％CI 0.515～1.122,P=0.168).结论:CTLA-4基因rs231775位点多态性与原发性高血压易感性可能无关.     

miRNA-146a基因多态性与肝癌易感性的meta分析

目的:通过meta分析评价miRNA-146a rs2910164位点基因多态性与肝癌易感性之间的相关性。方法:系统地检索PubMed、Embase、Web of Science、中国知网以及中国生物医学文献数据库 2017年1月30日之前发表的相关文章,用总的比值比（odd ratios, OR）及相应的95%可信区间（credibility intervals, CI）来评价miRNA-146a基因多态性与肝癌易感性之间的相关性。结果:共纳入了18项病例对照研究,包括5 657例肝癌病例与6 680例健康对照。经过统计分析未发现miRNA-146a rs2910164位点的基因多态性与肝癌易感性之间存在相关性（C vs. G：OR=0.96,95%CI=0.88~1.06;GC vs. GG：OR=0.98,95%CI=0.88~1.09; CC vs. GG：OR=0.90,95%CI=0.74~1.09;GC/CC vs. GG：OR=0.95,95%CI=0.82~1.10;CC vs. GC/GG：OR=0.95,95%CI= 0.84~1.07）。结论:目前没有足够证据能够证明miRNA-146a基因多态性与肝癌易感性之间存在相关性。未来有必要在大规模和设计完善的研究中加以验证。     

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.