甲亢^131碘治疗对血清降钙素的影响

作者观察２０例甲亢患者：１３１Ｉ治疗前后及随访中血清降钙素（ＣＴ）含量变化。其中８例发生甲减的患者治疗前后血清ＣＴ分别为１９．７６±３．５ｐｇ／ｍｌ、１１．０６±２．０９ｐｇ／ｍｌ，Ｐ＜０．０５；与１２例甲状腺功能恢复正常的患者其治疗前后血清ＣＴ比较分别为１１０６±２．０９ｐｇ／ｍｌ、２４．８４±８．１ｐｇ／ｍｌ，Ｐ＜０．０１。甲减患者中６例服用于甲状腺素片前后的血清ＣＴ水平比较无明显变化。研究提示：甲亢经１３１Ｉ治疗后发生甲减的患者导致ＣＴ分泌降低。补充外源性甲状腺素只能纠正其甲减状态，不能帮助甲状腺组织修复。“Ｃ”细胞合成分泌ＣＴ的功能必须依赖于正常甲状腺组织。     

肝硬化患者血浆内皮素水平与门脉高压的相关性研究

为了解肝硬化患者血浆内皮素水平的变化与门脉高压的关系,用特异性放射免疫分析法测定４６例肝硬化及３０例正常人血浆内皮素含量,Ｂ超测定门静脉直径。４６例肝硬化患者血浆内皮素水平（８２．６８±２６．０９ｐｇ／ｍｌ）明显高于对照组（５０．８±７．５８ｐｇ／ｍｌ,Ｐ＜０．０５）。其中２４例Ｃｈｉｌｄ－ｐｕｇｈＢ级（７９ｔ１９．２７ｐｇ／ｍｌ）和１４例ｃｈｉｌｄ－ｐｕｇｈＣ级（９４．５５±２４．３ｐｇ／ｍｌ）血浆内皮素水平明显高于８例ｃｈｉｌｄ－ｐｕｇｈＡ级（５７０５±１０．９６ｐｇ／ｍｌＰ＜０．０５和Ｐ＜０．０１）。４３例肝硬化患者血浆ＥＴ水平与门静脉直径有明显相关性（ｒ＝０．７６４Ｐ＜０．００１）。结果提示肝硬化患者血浆内皮素水平随肝功能损害程度加重而升高、其与门脉高压的产生有一定关系。     

肝硬化患者血浆内皮素水平与门脉高压的相关性研究

为了解肝硬化患者血浆内皮素水平的变化与门脉高压的关系,用特异性反射免疫分析法测定４６例肝硬化及３０例正常人血浆内皮素含量,Ｂ超测定门静脉直径。４６例肝硬化患者血浆内皮素水平（８６６８±２６０９ｐｇ／ｍｌ）明显高于对照组（５０．８±７５８ｐｇ／ｍｌ,Ｐ＜００５）。其中２４例ＣｈｉｌｄｐｕｇｈＢ级（７９６±１９２７ｐｇ／ｍｌ）和１４例ＣｈｉｌｄｐｕｇｈＣ级（９４５５±２４３ｐｇ／ｍｌ）血浆内皮素水平明显高于８例ＣｈｉｌｄｐｕｇｈＡ级（５７０５±１０９６ｐｇ／ｍｌ,Ｐ＜００５和Ｐ＜００１）。４３例肝硬化患者血浆ＥＴ水平与门静脉直径有明显相关性（ｒ＝０７６４,Ｐ＜０００１）。结果提示肝硬化患者血浆内皮素水平随肝功能损害程度加重而升高,其与门脉高压的产生有一定关系。     

维持性血透慢性肾功能不全患者血浆内皮素观察

本文对２１例维持性血透慢性肾功能不全患者及１６例健康人进行了内皮素（ＥＴ）水平的测定。维持性血透慢性肾功能不全患者，无论透析前后，血浆ＥＴ水平均较正常人明显增高，但透析后ＥＴ水平下降。平均ＥＴ浓度从透前２１２．６８±１１９．７ｐｇ／ｍｌ（±ｓ）下降至１１３．００±６８．７ｐｇ／ｍｌ（Ｐ＜０．０１）。健康对照者ＥＴ水平明显低于血透者（４９．６８±２３．７ｐｇ／ｍｌ）。维持性血透慢性肾功能不全患者透析前、后ＥＴ水平与健康对照组相比均有明显差异（Ｐ＜０．００１和Ｐ＜０．０５）。本文对透析前后血浆ＥＴ与血压及超滤量的关系进行了分析。     

肺心病患者心钠素与内皮素含量的临床观察

目的观察肺心病患者血浆心钠素及内皮素含量的变化,并探讨其临床意义。方法以放免法观察肺心病患者血浆心钠素及内皮素含量的变化,并与健康正常人作对照。结果肺心病患者外周静脉血心钠素含量（１７３．４６±２８．１４ｐｇ／ｍｌ）明显高于正常对照组（９４．５０±２１．４３ｐｇ／ｍｌ,Ｐ＜０．０１）,内皮素含量（１２８．２３±１８．７１ｐｇ／ｐｇ·ｍｌ－１）显著高于正常对照组（７１．４８±１１．７２ｐＢ／ｐｇ·ｍｌ－１,Ｐ＜０．０５）。结论肺心病患者外周静脉血血浆心钠素含量增加对心脏有代偿保护作用,内皮素含量增加在肺动脉高压的形成中有一定意义。     

先天性心脏病手术前后血浆内皮素含量的测定及意义

采用放射免疫均相竞争法测定５０例先天性心脏病患儿手术前后血浆内皮素（ＥＴ）的含量。结果术前为（９９．４８±４５．６５）ｐｇ／ｍｌ，术后为（５１．１７±２２．５８）ｐｇ／ｍｌ，两者间有非常显著差异（Ｐ＜０．０１）。术前明显高于正常对照组（Ｐ＜０．０１），术后接近正常水平。实验结果表明，先心病的病理生理过程及疾病的进展过程中有促进ＥＴ升高的因素。它可能与肺动脉高压、肺血管内皮损伤、乏氧及心功能不全有关。术后由于畸型的纠正，心脏正常生理过程的恢复，ＥＴ水平也随之下降，恢复至正常。     

血浆和脑脊液中强啡肽—A含量变化与脑外伤的关系

３３例急性脑外伤病人伤后２４ｈ内和伤后第５天测定了血浆和脑脊液中Ｄｙｎ—Ａ含量。对照组（ｎ＝１３）血浆和脑脊液中Ｄｙｎ—Ａ含量分别为９３８．７７±３１６．６７ｐｇ／ｍｌ和７７．０８±３２．６５Ｐｇ／ｍｌ；中型脑外伤组为１８７０．３２±５７３．１２ｐｇ／ｍｌ和１８６．３２±５６．３４ｐｇ／ｍｌ，重型脑外伤组为２０３５．１３±６７５．４７ｐｇ／ｍｌ和２２７．５８±１１５．７７ｐｇ／ｍｌ，均明显高于对照组（Ｐ＜０．０１）。随着病情的好转Ｄｙｎ—Ａ含量亦随之降低，提示Ｄｙｎ—Ａ参与脑外伤的发病过程，其血浆和脑脊液中Ｄｙｎ—Ａ含量的变化对判断脑外伤病情的轻重和估价预后，有重要意义。     

原发性干燥综合征患者外周血SP检测的临床意义

为研究患者外周血中Ｐ物质浓度与其发病机制及临床表现的关系，用放射免疫分析法分别测定了１６例ＳＳ患者及１５例正常对照者外周血中Ｐ物质浓度的变化，将所得数据进行统计学处理，结果表明ＳＳ组ＳＰ浓度（１８１１．９０±１０８１．０２ｐｇ／ｍｌ）显著高于正常对照组（７４．１３±６１．５７ｐｇ／ｍｌ），两者之间有显著差异（Ｐ＜０．０１）。     

不同高血压病期的血浆心钠素水平观察

应用心钠素抗体的放射免疫测定方法，测定１０９例正常人和１０１例高血压病患者血浆心钠素含量的变化。结果：正常人血浆心钠素浓度为５１７．７５±２４．９０ｐｇ／ｍ１；高血压Ⅰ期患者其血浆浓度明显高于正常人，为６６０．５±７２Ｐｇ／ｍｌ（Ｐ＜０，０５）；而高血压Ⅱ期、Ⅲ期患者其血浆浓度明显低于正常人（Ｐ＜０．０５），其中Ⅱ期患者为２５６．８±５５Ｐｇ／ｍＩ，Ⅲ期患者为１１２±３４．９ｐｇ／ｍ１（Ｐ＜０．０５）。     

慢性肾衰患者透析前后血浆心房肽水平与超滤量的关系

目的证实血容量变化是影响体内心房肽（ＡＮＰ）水平的主要因素，了解慢性肾衰对血浆ＡＮＰ水平的影响。方法测定１０例健康人，１７例慢性肾衰患者血液透析（ＨＤ）前后血浆ＡＮＰ水平及血清尿素氮（ＢＵＮ）和肌酐（Ｃｒ）水平，并记录患者的体重变化——超滤量。结果健康对照组血浆ＡＮＰ为（７１．８５±２７．５１）ｐｇ／ｍｌ；ＨＤ组一次透析前后ＡＮＰ各为（２９２．６５±１６９．７８）ｐｇ／ｍｌ和（１５７．２２±９３．６３）ｐｇ／ｍｌ。三者比较ＨＤ组透析前后ＡＮＰ均较对照组高，Ｐ值分别为＜０．００１和＜０．０１；ＨＤ组透后ＡＮＰ水平较透前明显下降（Ｐ＜０．０１）。透析前后超滤量为（１．５７±０．８４）ｋｇ／人，与透析前后血浆ＡＮＰ下降量呈正相关（ｒ＝０．５０，Ｐ＜０．０５）。透析前后血浆ＡＮＰ水平与相应的血清ＢＵＮ及Ｃｒ水平无相关性。结论慢性肾衰患者血浆ＡＮＰ水平是细胞外液量变化的敏感指标，但它不能反映肾衰的严重程度。     

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.