人胎盘型谷胱甘肽S－转移酶（GST－π）对消化道恶性肿瘤的诊断意义

从人体胎盘分离纯化ＧＳＴ－π并建立血清ＧＳＴ－π双抗夹心ＥＬＩＳＡ检测方法。检测了７３例正常人及１９３例消化道良、恶性肿瘤和非肿瘤患者血清ＧＳＴ－π含量。结果原发性肝癌、转移性肝癌、胃癌、结肠直肠癌和食道癌患者血清ＧＳＴ－π含量显著升高（Ｐ＜０．０１～０．０００１），阳性率分别为９０．６％、９０．０％、６８．４％、６６．６％和５７．０％，对消化道恶性肿瘤总的阳性率为７９．６％，特异性９５．４％。提示血清ＧＳＴ－π检测对消化道肿瘤的诊断具有较好的辅助诊断作用；特别是原发性肝癌，是一项较为敏感的肿瘤标志物。     

GGTⅡ,ALPⅠ,AAT诊断原发性肝癌探讨

对１０１例原发性肝癌（ＰＨＣ）同步检测几项标记，其阳性率为ＡＦＰ７６．２％，ＧＧＴⅡ８５．１％，ＡＬＰⅠ２４．８％，ＡＡＴ７５．１％。与肝硬化、慢性肝炎、肝良性占位性病变、肝外肿瘤、正常人等组比较，差异有显著性。假阳性率以肝硬化用组高，分别为ＡＦＰ１５．０％，ＧＧＴⅡ１０．０％，ＡＬＰⅠ３．３％，ＡＡＴ２６．７％。在ＡＦＰ＜５０ｎｇ／ｍｌ２４例中，ＧＧＴⅡ阳性率为７０．８％，ＡＬＰⅠ为１６．７％，ＡＡＴ为６６．７％。本文结果显示、ＧＧＴⅡ诊断ＰＨＣ敏感性、特异性均佳，优于ＡＦＰ、ＡＬＰⅠＩ及ＡＡＴ。ＧＧＴⅡ与ＡＦＰ互补诊断可提高阳性率。     

肝硬化合并原发性肝癌血清转化生长因子—α测定及临床意义

目的：研究肝硬化合并原发性肝癌、原发性肝癌、肝硬化及正常人血清转化生长因子－α变化，探讨了ＴＧ－α在肝硬化合并原发性肝癌中的临床意义。方法：肝硬化合并原发性肝癌４８例，原发性肝癌３０例，肝硬化８０例，正常对照组５０例，采用放免疫法检测血清ＴＧＦ－α。     

联合检测GPDA同工酶和AFP对原发性肝癌诊断价值的探讨

目的：研究联合检测血清甘氨酰脯氨酸二肽氨基肽酶（ＧＰＤＡ）同工酶和甲胎蛋白（ＡＦＰ）对原发性肝癌的诊断价值。方法：采用改良垂直平板阶段梯度聚丙烯酰胺凝胶电泳分离血清ＧＰＤＡ同工酶,以放免法检测ＡＦＰ,对１０２例原发性肝癌（ＰＨＣ）,２４例慢性肝炎,４５例肝炎后肝硬化,２０例转移性肝癌,３５例良性肝占位性病变以及８０全     

血清LDL—VLDL—GGT测定对肝癌鉴别诊断意义的探讨

本文以磷钙酸－－氯化镁作沉淀剂，速率法测定血清低密度脂蛋白，极低密度脂蛋白结合的ｒ－谷氨酰转移酶（ＬＤＬ－ＶＬＤＬ－ＧＧＴ）占总ＧＧＴ的百分比。对临床２６例肝癌、１８例肝硬化，２２例慢性肝炎，１４例其他恶性肿瘤、１６例ＧＧＴ升高的非肝脏疾病及５０例临床人进行了检测。结果表明，肝癌组明显高于其他各组，差异显著（Ｐ〈０．０１），肝脏疾病升高幅度：肝癌〉肝硬化〉慢性肝炎，且每两者间有显著差异（Ｐ〈０．０     

人胎盘型谷胱甘肽S—转移酶（GST—π）对消化道恶性肿瘤的诊…

从人体胎盘分离纯化ＧＳＴ－π并建立血清ＧＳＴ－π双抗夹心ＥＬＩＳＡ检测方法，检测了７３例正常人及１９３例消化道良、恶性肿瘤和非肿瘤患者血清ＧＳＴ－π含量。结果原发性肝癌、转移性肝癌、胃癌、结肠直肠癌患者血清ＧＳＴ－π含量显著升主（Ｐ＜０．０１－０．０００１），阳性率分别为９０．６％、９０．０％、６８．４％、６６．６％和５７．０％，对消化道恶性肿瘤总的阳性率为７９．６％，特异性９５．４％。提示血清Ｇ     

AFP异质体分析在原发性肝癌诊断的应用

用交叉亲和酶联免疫电泳法，对７７例ＡＦＰ阳性血清进行ＡＦＰ异质体分析。结果ＡＦｐ－Ｎ－Ｌ的比率分别为肝硬化组（８４．１４±１１０．６０）％、急性肝炎组（８１．０７±６．５９）％和慢性肝炎组（７７．５３±１１．４２）％，均显著高于原发性肝癌组（６２．８５±１７．６９）％，（Ｐ＜０．０５）。表明ＡＦＰ异质体是比ＡＦＰ更具有特异性的肝癌标志物，对原发性肝癌以及其他良性肝病的鉴别诊断有着重要的意义。     

血清LDL－VLDL－GGT测定对肝病的鉴别诊断价值

本文应用酶速率法测定了７９例原发性肝癌、肝硬化、慢性肝炎和非肝脏疾病患者血清中与低密度脂蛋白（ＬＤＬ）、极低密度脂蛋白（ＶＬＤＬ）结合的ｒ－谷氨酰转肽酶（ＧＧＴ）活力。结果表明，原发性肝癌血清ＬＤＬ－ＶＬＤＬ－ＧＧＴ以及ＬＤＬ－ＶＬＤＬ－ＧＧＴ占血清总ＧＧＴ的百分比显著高于肝硬化、慢性肝炎及非肝脏疾病组（Ｐ＜０．０１）。血清ＬＤＬＶＬＤＬ－ＧＧＴ测定对肝癌与肝脏非恶性病变的鉴别诊断具有一定价值。     

HSB,GSTs和TNF血清学指标联合检测对肝癌诊断价值的临床评价

为探讨肝癌特异性ＧＧＴ同工酶区带（ＨＳＢ）、谷胱苷肽－Ｓ－转换酶（ＧＳＴｓ）和肿瘤坏死因子（ＴＮＦ）３项血清学标志物浓度改变在肝癌诊断与鉴别中的临床价值,分别对肝癌、慢性肝病和肝外肿瘤进行定量检测分析。结果,肝癌组ＨＳＢ和ＧＳＴｓ浓度均明显高于慢性肝病和肝外肿瘤组（Ｐ＜０．０１）;ＴＮＦ浓度肝癌组明显高于慢性肝病组（Ｐ＜０．００１）,但与肝外肿瘤组间无明显差异;肝癌组ＨＳＢ、ＧＳＴｓ和ＴＮＦ的阳性率分别为８８．６％、７８．１％和７４．３％,均显著高于另两组（Ｐ＜０．０１）。研究表明,ＨＳＢ定量检测优于ＧＳＴｓ和ＴＮＦ,多项指标联合分析有助于肝癌的诊断与鉴别。     

血清透明质酸对肝硬化的诊断价值探讨

应用放免法测定正常人２０例、肝硬化２１例、原发性肝癌２８例、其它恶性肿瘤１７例的血滑透明质酸的变化．结果肝硬化与原发性肝癌、原发性肝癌与其它恶性肿瘤皆有显著差异（Ｐ值分别为＜０．０１与＜０．０５）．认为测定血清ＨＡ有助于肝硬化的诊断。     

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.