IL-10基因启动子区-592位点单核苷酸多态性在宁夏回、汉族人群中的分布

目的研究白细胞介素10（interleukin10,IL-10）基因启动子区-592位点单核苷酸多态性在宁夏回族与汉族人群中的分布频率。方法应用聚合酶链反应-限制性片段长度多态性（PCR-RFLP）技术对210例回族和308例汉族人群IL-10基因启动子区-592多态性位点进行检测。结果 IL-10基因启动子区-592位点基因型频率及等位基因频率在宁夏回、汉族中差异无统计学意义（P〉0.05）。将宁夏回、汉族群体合并,然后按性别分组,IL-10基因启动子区-592多态性位点的基因型频率及等位基因频率在宁夏群体不同性别组间差异无统计学意义（P〉0.05）。结论 IL-10基因启动子区-592多态性位点在宁夏回、汉族人群中分布无明显的差异。     

广西汉族IL-10启动子区基因多态性与HBV易感性及感染转归的关系

目的探讨白细胞介素-10(IL-10)基因启动子区-592A/C、-1082G/A位点单核苷酸多态性与乙型肝炎病毒(HBV)易感性及后临床转归之间的关系。方法 256例慢性HBV感染者,其中乙型肝炎肝硬化59例,慢性乙型肝炎151例,慢性HBV携带46例,以52例健康体检者作为对照组。采用聚合酶链反应-限制性片段长度多态性分析(PCR-RFLP)技术,检测各组IL-10基因启动子区-592A/C、-1082G/A位点基因型及等位基因分布频率。结果肝硬化组、肝炎组、携带组与对照组的IL-10-592A/C位点AA、AC、CC基因型及A、C等位基因分布频率比较,差异均无统计学意义(P>0.05);IL-10-1082G/A位点GG、GA和AA基因型分布频率比较,差异有统计学意义(P<0.05),AA基因型频率分布依次为肝硬化组>肝炎组>携带组>对照组(P<0.05);各组IL-10-1082G/A位点G、A等位基因频率比较,差异有统计学意义(P<0.05),肝硬化组的A等位基因频率分布最高,其余依次为肝炎组、携带组及健康对照组(P<0.05)。不同HBV-DNA水平组的IL-10-592A/C、IL-10-1082G/A两位点基因型及等位基因分布频率比较,差异均无统计学意义(P>0.05)。结论IL-10-1082G/A位点AA基因型及A等位基因可能与广西汉族人群HBV易感性及其临床结局有关;而IL-10基因启动子区-592A/C、-1082G/A位点多态性可能与广西汉族人群感染HBV后的病毒复制水平无明显关系。     

IL-10基因启动子区-592C/A多态性与童支气管孝喘易感性研究

目的 探讨白介素10基因（IL-10）启动子区-592C/A多态性与潍坊地区汉族人群儿童支气管哮喘发病的关系.方法应用PCR-RFLP方法,对70例支气管哮喘患儿（哮喘组）和70例健康儿童（对照组）IL10基因-592C/A多态性进行检测,计算基因型和等位基因频率,采用X2检验进行组间比较.结果 两组人群IL-10基因-592C/A多态性分布具有明显差异,CC,CA,AA基因型频率哮喘组分别为5.7％,41.4％,52.9％,对照组分别为15.7％,54.3％,30.0％（X2=8.85,P＜0.05）;C和A等位基因频率哮喘组为26.4％和73.6％,对照组为42.9％和57.1％（X2=8.34,P＜0.01）;哮喘组AA基因型和A等位基因频率明显高于对照组.与CC基因型和C等位基因比较,携带AA基因型和A等位基因的儿童发生支气管哮喘的相对风险明显增加,OR值分别为4.85（95％CI：1.25～18.86）（P＜0.05）和2.09（95％CI：1.27 ～3.45） （P ＜0.01）.结论 IL-10基因-592C/A多态性与儿童支气管哮喘病的发生有关联,A等位基因可能是易感基因.     

云南汉族人群IL-10基因启动子多态性与HCV慢性感染的相关性研究

目的探讨IL-10基因启动子SNP-1082G/A(rs1800896)、-819C/T(rs1800871)、-592C/A(rs1800872)位点与HCV慢性感染的相关性.方法入选云南地区汉族人群HCV慢性感染患者379例,健康对照364例.采用Taq Man探针基因分型方法对IL-10基因启动子SNP-1082G/A(rs1800896)、-819C/T(rs1800871)、-592C/A(rs1800872)的3个位点进行基因分型,并构建单倍型,评估上述3个SNPs及单倍型与HCV慢性感染的相关性.结果在病例组和对照组中,IL-10基因启动子SNP-1082G/A(rs1800896)、-819C/T(rs1800871)、-592C/A(rs1800872)基因型频率和等位基因频率差异没有统计学意义(P>0.05).单倍型分析结果显示,SNP-1082G/A(rs1800896)、-819C/T(rs1800871)和-592C/A(rs1800872)构建的单倍型频率的差异无统计学意义(P>0.05).结论在云南汉族群体中,IL-10基因启动子SNP-1082G/A(rs1800896)、-819C/T(rs1800871)、-592C/A(rs1800872)与HCV慢性感染没有相关性.     

宁夏回、汉族群体TGF-β1启动子区基因多态性研究

目的探讨转化生长因子β1(Transforming Growth Factor-β1,TGF-β1)基因启动子区SNP-800(G/A)和SNP-509(C/T)多态性在宁夏回、汉族人群中的分布特征。方法应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)技术对210例回族和308例汉族人群转化生长因子β1启动子区(-800位点、-509位点)两个多态性位点进行检测。结果宁夏回族群体TGF-β1基因两个多态性位点各基因型频率及等位基因频率分别为:-800(GG:97.62%;GA:2.38%;AA:0%;G:98.81%;A:1.19%),-509(CC:21.90%;CT:56.67%;TT:21.43%;C:50.24%;T:49.76%);宁夏汉族群体TGF-β1基因两个多态性位点各基因型频率及等位基因频率分别为:-800(GG:99.03%;GA:0.97%;AA:0%;G:99.52%;A:0.48%);-509(CC:27.27%;CT:50.97%;TT:21.75%;C:52.76%;T:47.24%),两组间差异均无统计学意义(P>0.05)。按性别分组,两个多态性位点的基因型频率及等位基因频率差异亦无统计学意义(P>0.05)。结论 TGF-β1基因启动子区-800、-509两个多态性位点在宁夏回、汉族人群及不同性别间差异无统计学意义。     

白细胞介素-10基因多态性与肿瘤患者化学治疗后乙型肝炎病毒再激活的关系

目的探讨白细胞介素-10(IL-10)基因启动子区域-592A/C、-1 082G/A位点单核苷酸多态性(SNP)与肿瘤患者化学治疗后乙型肝炎病毒(HBV)再激活的关系。方法采用聚合酶链反应-限制性片断长度多态性(PCRRFLP)分析法,检测80例携带HBV的肿瘤患者的IL-10基因启动子-592A/C、-1 082G/A多态性,并确定其基因型和等位基因频率分布。结果 80例携带HBV的肿瘤患者,化学治疗期间出现HBV再激活18例(HBV激活组),62例患者未发生HBV再激活(HBV未激活组),HBV再激活发生率为22.5%。2组患者IL-10启动子区-592A/C基因型和等位基因频率比较差异均无统计学意义(P>0.05)。2组患者IL-10启动子区-1 082G/A位点SNP分析发现仅存在AA和AG基因型,而无GG基因型。HBV激活组患者IL-10启动子区-1 082G/A位点AA基因型及A等位基因频率显著高于HBV未激活组(P<0.05)。结论携带HBV的肿瘤患者化学治疗后HBV再激活与IL-10基因启动子区域-1 082G/A位点AA基因型及A等位基因有关。     

IL-6和IL-18基因启动子多态性与广东汉族人群类风湿性关节炎相关性研究

目的 了解我国广东地区汉族人群白细胞介素-6(IL-6)和白细胞介素-18(IL-18)基因启动子单核苷酸多态性及与类风湿性关节炎(RA)的相关性.方法 应用序列特异性引物-聚合酶链反应(PCR-SSP)技术检测168名健康体检者和120例RA患者的IL-6基因启动子-572和-174及IL-18基因启动子-607C/A和-137G/C单核苷酸多态性.结果 对照组和患者组IL-6基因启动子-572位点、-174位点和IL-18基因启动子-607C/A位点、-137G/C位点均存在单核苷酸多态性.IL-6-572位点、-174位点和IL-18-607位点基因型和等位基因频率分布在RA组和对照组间差异均有显著性(P＜0.001).IL-18-137位点基因型频率在两组间无统计学意义(P=0.141),但等位基因分布频率在两组间差异有显著性(P=0.024).经Logistic回归分析,年龄、性别、IL-6-572位点、-174位点和IL-18-137位点与RA有相关性(P＜0.05).结论 广东汉族人群IL-6基因启动子-572和-174单核苷酸多态性与RA可能相关,IL-18基因启动子-607C/A和-137G/C单核苷酸多态性与RA是否相关需进一步研究.     

IL-18基因启动子区-607C/A位点多态性与痛风发病相关性

目的探讨山东汉族人白细胞介素-18(IL-18)基因启动子区-607C/A位点单核苷酸多态性与痛风易感性之间的关系。方法应用聚合酶链反应-序列特异性引物技术,检测100例痛风病人和100例非痛风病人IL-18基因启动子区-607C/A单核苷酸多态性位点的基因型。结果非痛风病人和痛风病人IL-18基因启动子区-607C/A位点3种基因型频率分别为:AA型0.18(18/100)、0.18(18/100),AC型0.58(58/100)、0.67(67/100),CC型0.24(24/100)、0.15(15/100)。IL-18基因启动子区-607C/A位点的基因型和等位基因频率在两组之间分布无明显差异。结论山东汉族人群中IL-18基因启动子区-607C/A位点存在多态性,但痛风与该多态性无相关性。     

辽宁地区汉族人群多巴胺D1受体基因启动子区3个位点的多态性研究

目的 探讨辽宁地区汉族人群多巴胺D1受体(dopamine D1 receptor,DRD1)基因启动子区的3个多态性位点的基因型及等位基因的频率分布.方法 用等位基因特异性扩增技术对101名辽宁地区汉族人的DRD1基因启动子区3个多态性进行检测,并与文献中的其他人群进行比较.结果 ①DRD1基因启动子区-2102C/A的等位基因频率分别为47.5％和52.5％.-800T/C的等位基因频率分别为36.6％和63.4％.-48G/A的等位基因频率分别为43.6％和56.4％.均符合Hardy-Weinberg平衡定律.②辽宁地区汉族人群DRD1基因启动子区3个多态性之间不存在连锁不平衡.③中国人群与其他人群基因多态性分布频率对照研究发现,-2102C/A、-48G/A多态性分布差异有统计学意义,而-800T/C多态性分布差异没有统计学意义.结论 DRD1基因启动子区-2102C/A、-48G/A多态性分布具有种族差异,-800T/C多态性分布不具有种族差异.     

IL-18基因启动子-607C/A位点多态性与冠心病关系的研究

目的:探讨汉族人群IL-18基因启动子-607C/A位点多态性与冠心病(CHD)发生之间的关系。方法:应用序列特异性引物-聚合酶链反应技术,检测141例CHD患者和240例健康对照者IL-18基因启动子-607C/A单核苷酸多态性位点基因型,分析CHD组和对照组基因型频率和等位基因频率分布;同时进行血脂检测。结果:CHD组和健康对照组IL-18基因启动子-607C/A位点的基因型CC、CA、AA频率分别为33.3%、50.4%、16.3%和21.3%、51.3%、27.4%,等位基因C和A的频率分别为58.5%、41.5%和46.9%、53.1%。CHD组CC基因型和C等位基因频率明显高于健康对照组(χ2=4.56,P=0.03;χ2=7.49,P=0.01),具有显著性差异。结论:IL-18基因启动子-607C/A位点CC基因型人群冠心病易感性增高,C等位基因可能是CHD发生的一个遗传危险因子。     

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.