氧化镁对高血压病人血压,胰岛素抗性及脂质代谢的影响

目的　观察氧化镁对高血压病人血压、胰岛素抗性及脂质代谢的影响。方法　６０例原发性高血压病人随机分为两组,两组病人服用同剂量的钙拮抗剂硝苯地平缓释片降血压,治疗组加服氧化镁粉;对照组不服氧化镁。观察３个月。实验前１ｄ及实验结束之次日分别测血压、抽空腹血查血清葡萄糖（ＳＧ）、血浆胰岛素（ＩＮＳ）、血清胆固醇（ＴＣ）、甘油三酯（ＴＧ）及高密度脂蛋白（ＨＤＬ）,计算胰岛素敏感指数（ＩＳＩ）。观察实验前后各指标的变化。结果　①治疗组实验后收缩压（ＳＢＰ）,舒张压（ＤＢＰ）,ＩＮＳ,ＴＧ及ＴＣ降低,与实验前比较差异有显著性（Ｐ＜０．０５,０．０１）;ＩＳＩ及ＨＤＬ升高,与实验前比较差异有显著性（Ｐ＜０．０１）;ＳＧ治疗前后无显著变化（Ｐ＞０．０５）。②对照组实验后ＳＢＰ,ＤＢＰ降低,与实验前比较差异有显著性（Ｐ＜０．０１）;ＩＮＳ,ＳＧ,ＴＧ,ＴＣ,ＨＤＬ及ＩＳＩ治疗前后无显著差别（Ｐ＞０．０５）。③与对照组比较,治疗组实验后ＳＢＰ及ＤＢＰ降低明显（Ｐ＜０．０５）;ＩＮＳ,ＴＧ,及ＴＣ降低（Ｐ＜０．０１,０．０５）;ＩＳＩ及ＨＤＬ升高（Ｐ＜０．０１）;结论　氧化镁可降低高血压病人的血压、提高其胰岛素敏感性、降低其血清Ｔ     

胰岛素抵抗在脑血栓形成发病中作用观察

目的 探讨胰岛素抵抗（ＩＲ）在脑血栓形成发病中的作用。方法 对２３例脑血栓形成患者和２１例对照者的空腹血糖（ＦＢＧ）,空腹胰岛素（ＦＩＮＳ）胰岛素敏感指数（ＩＳＩ）,血脂等进行比较,并对其与脑血栓形成的关系进行多因素Ｌｏｇｉｓｔｉｃ逐步回归分析,结果 脑血一项 ＦＢＧ,ＦＩＮＳ均高于对照组（Ｐ〈０．０５）,ＩＳＩ显著低于对照组（Ｐ〈０．０１）。ＩＳＩ与脑血栓形成发病呈负相关（ＯＲ＝０．２７７４,９     

NIDDM患者血脂异常与胰岛素抵抗的关系

测定３８例非胰岛素依赖型糖尿病（ＮＩＤＤＭ）患者血脂、空腹血糖（ＦＢＧ）及空腹血胰岛素（ＦＩＮＳ）,并计算胰岛素敏感性指数（ＩＳ）,结果发现与正常对照组（３５例）比较,血胆固醇（ＴＣ）,甘油三脂（ＴＧ）,低密度脂蛋白胆固醇（ＬＤＬ－Ｃ）,载脂蛋白Ｂ（ＡＰＯＢ）,ＦＢＧ及ＦＩＮＳ显著增高,而高密度脂蛋白胆固醇（ＨＤＬ－Ｃ）,载脂蛋白Ａ１（ＡＰＯＡ１）,ＡＰＯＡ１／ＡＰＯＢ及ＩＳ显著降低。ＩＳ与ＴＣ,ＴＧ,ＬＤＬ－Ｃ,ＡＰＯＢ呈显著负相关,与ＨＤＬ－Ｃ,ＡＯＡ１及ＡＰＯＡ１／ＡＰＯＢ呈显著正相关。提示ＮＩＤＤＭ患者存在血脂异常及胰岛素抵抗,且血脂异常与胰岛素抵抗密切相关。     

血小板和脂蛋白在冠心病发病中的作用及其临床意义

目的：研究血小板和脂蛋白在冠心病发病中的作用。方法：对３９例心绞痛患和３１例心肌梗塞患测定了血浆ＧＭＰ－１４０、ＴＸＢ２、６－酮－ＰＧＦ１α含量及血脂、脂蛋白、载脂蛋白水平。结果：心绞痛和心肌梗塞患,血浆ＧＭＰ－１４０、ＴＸＢ２、ＴＧ、ＬＤＬ－Ｃ、ＡｐｏＢ平均值,明显高于对照组（Ｐ〈０．０５）ＡＰＯＡ、ＨＤＬ－Ｃ、６－酮－ＰＧＦ１α平均值明显低于对照组（Ｐ〈０．０５）,心肌梗塞组的ＧＭＰ－１     

和田地区维吾尔族老人血脂与有关因素相关关系的研究

目的：研究新疆和田长寿地区维吾尔族老人血脂与性激素、超氧化物歧化酶（ＳＯＤ）、空腹血糖（ＦＢＧ）、空腹胰岛素（ＦＩＮＳ）、空腹胰岛素敏感指数（ＦＩＳＩ）间的相互关系。方法：取空腹肘静脉血栓测血清总胆固醇（ＴＣ）、甘油三酯（ＴＧ）、是蛋白胆固醇（ＨＤＬ）、睾酮（Ｔ）、雌二醇（Ｅ２）、超氧化物歧化酶、空腹血糖、空腹胰岛素,统计学采用多元逐步回归分析。结果：;空腹血糖与甘油三酯呈正相关,空腹胰岛素与高密     

原发性高血压胰岛素抵抗与血浆内皮素的关系

目的 探讨原发性高血压（ＥＨ）、胰岛素抵抗与血浆内皮素之间的关系。方法 对３１例ＥＨ患者和２７例健康人血清胰岛素（ＩＳ）释放水平、血脂、血浆内皮素（ＥＴ）进行检测并对比分析。结果 ＥＨ组存在高胰岛素血症和胰岛素抵抗（ＩＲ），血脂代谢紊乱、血浆ＥＴ明显增高，血ＩＳ和血甘油三脂（ＴＧ）与ＥＴ水平明显相关（Ｐ〈０．０５）。结论 胰岛素抵抗与血浆ＥＴ升高有密切关系。     

洛伐他汀对ⅡB型高脂血症患者血脂,血糖及胰岛素代谢的影响

作者观察了３０例ⅡＢ型高脂血症患者在给予洛伐他汀口服８周前后血脂、血糖及胰岛素的变化。发现用药８周后ＴＣ及ＬＤＬ－Ｃ明显降低（Ｐ〈０．０５）,ＴＧ、ＨＤＬ－Ｃ、ＶＬＤＬ－Ｃ变化不大（Ｐ〉０．０５）。空腹血糖（ＦＰＧ）及服糖后２小时血糖（２ｈＰＧ）较用药前升高（前者Ｐ〈０．０５）。空腹胰岛素（ＦＰＩ）及服糖后２小时胰岛素（２ｈＰＩ）也较治前增高（Ｐ〈０．０５）。空腹血糖与空腹胰岛素乘积的倒数「１／（     

甘油三酯对中老年高血压患者血糖胰岛素水平及左室舒张功能的影响

目的：探讨甘油三酯（ＴＧ）对中老年高血压患者血糖、胰岛素水平及左室舒张功能的影响。方法：观察了１０５例ＴＧ水平不同的中老年高血压患者胰岛素、血糖和左室舒张功能并计算胰岛素敏感指数（ＩＳＩ）。结果：正常ＴＧ组空腹血糖低于高ＴＧ组（Ｐ〈０．０５），胰岛素水平正常ＴＧ组高于对照组（Ｐ〈０．０５），低于高ＴＧ组（Ｐ〈０．０５）。ＩＳＩ正常ＴＧ组和高ＴＧ组均低于对照组（Ｐ〈０．０５），正常ＴＧ组高于高ＴＧ组     

肥胖青少年血胰岛素与血压、血脂关系的研究

本研究对５０对１２～１７岁肥胖和体重正常的青少年进行了身体形态学指标和空腹胰岛素、甘油三酯（ＴＧ）、总胆固醇（ＴＣ）、高密度脂蛋白胆固醇（ＨＤＬ一Ｃ）等生化指标的检测。结果表明：肥胖组血压、空腹胰岛素、ＴＧ均显著高于体重正常组，而ＨＤＬ一Ｃ则显著较低。肥胖组空腹胰岛素与收缩压、舒张压有显著正相关关系（ｒ＝０．３０～０．５６，Ｐ＜０．０５），与ＴＧ、ＴＣ亦呈显著正相关（ｒ＝０．３０～０．４０，Ｐ＜０．０５），而与ＨＤＬ一Ｃ则呈显著负相关（ｒ＝－０．４０，Ｐ＜０．０５）。多元回归分析的结果也表明肥胖青少年空腹胰岛素与血压、血脂有关系。提示空腹胰岛素可能是影响血压、血脂的重要因素。     

2型糖尿病胰岛素抵抗与血压的关系

目的 探讨２型糖尿病（ＤＭ）在胰岛素抵抗（ＩＲ）在高血压发生机制中的作用。方法 检测了６０例２型ＤＭ患者及４０例正常对照者的空腹血糠（ＦＢＧ）、空腹胰岛素（ＦＩＮＳ）、ＨｂＡＩＣ、血脂、红细胞膜Ｎａ＾＋－Ｋ＾＋－ＡＴＰ酶与Ｍｇ＾２＋－ＡＴＰ酶活性及血压等,并将ＤＭ组分为Ａ组（ＩＳ〉０．６）及Ｂ组（ＩＳ≤０．６）。结果 ２型ＤＭ患者ＦＢＧ、ＨｂＡＩＣ、ＦＩＮＳ、ＴＧ、ＴＣ及Ｂ组血压均高显著增高,胰岛     

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.