脐血血清对正常及白血病骨髓粒－单祖细胞生长的影响

利用粒－单祖细胞集落（ＣＦＵ－ＧＭ）的体外培养，观察脐血血清（ＵＣＳ）对正常及白血病骨髓造血祖细胞生长的影响，结果表明：ＵＣＳ对正常及急性白血病（ＡＬ）患者完全缓解的骨髓ＣＦＵ－ＧＭ形成有一定增殖作用，而对初发／复发未治ＡＬ患者的骨髓ＣＦＵ－ＧＭ形成无类似作用。     

高温、利多卡因、足叶乙苷联合法体外净化白血病细胞

采用体外造血细胞培养技术，应用高温、利多卡因、足叶乙苷（足叶乙甙，ＶＰ－１６）联合法，研究其在体外对白血病细胞的杀伤作用。结果表明：高温、利多卡因、ＶＰ－１６三者联用比高温＋利多卡因、高温＋ＶＰ－１６，能更有效地杀伤白血病细胞，而正常粒单系克隆形成单位（ＧＭ－ＣＦＵ）仍约有５０％存活。４１℃６０ｍｉｎ＋０．７５ｍｍｏｌ／Ｌ利多卡因＋８．５μｍｏｌ／ＬＶＰ－１６联合处理后，ＨＬ－６０、Ｕ９３７、Ｋ５６２细胞分别只存活０．０１％、９．４０％、３３．６６％。另外，从这个联合方案说明对于不同类型的白血病效果不一，在其自身骨髓移植（ＡＢＭＴ）时，体外净化骨髓要采用不同的净化方案。     

高温联合普鲁卡因体外净化急性髓细胞白血病骨髓及其优化

采用３ＨＴｄＲ掺入法及ＣＦＵ－Ｌ、ＣＦＵ－ＧＭ、ＣＦＵ－Ｂｌａｓｔ和ＣＦＵ－Ｆ等培养技术，通过正交试验设计观察了高温和普鲁卡因在不同条件下的体外净化作用。发现两者联合可以增加净化的效率及特异性。它们对各种集落形成细胞的杀伤力从大到小依次为ＣＦＵ－Ｌ、ＣＦＵ－ＧＭ、ＣＦＵ－Ｂｌａｓｔ和ＣＦＵ－Ｆ（Ｐ＜０．０１）。而后两者的敏感性相似（Ｐ＞０．０５）。在普鲁卡因４ｍｍｏｌ／Ｌ（Ｐ＜０．０５）和加热（４２℃）１２０分钟（Ｐ＞０．２５）时用３ＨＴｄＲ掺入法测得净化效果最好。而用集落培养法则在普鲁卡因４ｍｍｏｌ／Ｌ（Ｐ＜０．０１）和加热（４２℃）９０分钟（Ｐ＜０．０５）时净化效果最佳，这时ＣＦＵ－Ｌ和ＣＦＵ－Ｂｌａｓｔ的杀伤率相差２．５ｌｏｇ。     

体外高热联合α—IFN或As2O3对白血病骨髓净化的实验研究

目的 研究体外高联合α－ＩＦＮ或Ａｓ２Ｏ３对白血病骨髓的净化。方法 １２例白血病人及１０例正常对照骨髓：（１）在高热４２℃ｈ、α－ＩＦＮ３００Ｕ／ｍｌ条件下,测定持续高是歇高热对ＣＦＵ＿ＧＭ和ＣＦＵ－Ｌ产率的（２）在３７℃、４２℃条件下,不同Ａｓ２Ｏ３浓度对ＣＦＵ－ＧＭ和ＣＦＵ＿Ｌ抑制率的影响。结果 间歇高热联合α－ＩＦＮ与持续高热联合α－ＩＦＮ相比,前者对ＣＦＵ－ＧＭ具有保护作用,两者对ＣＦＵ－     

12例成人急性非淋巴细胞白血病长生存期时骨髓CFU－GM的生长特点

１２例成人急性非淋巴细胞白血病长生存期时骨髓ＣＦＵ－ＧＭ的生长特点李秀荣，张伯龙成人急性非淋巴细胞白血病（ＡＮＬＬ）的联合化疗取得很大进步，国内已有一批无病长生存病人，但尚未见到有关这些病人骨髓粒－单系祖细胞（ＣＦＵ－ＧＭ）的生长特点并将其与ＡＮＬＬ...     

急性白血病患者骨髓细胞体外培养及其临床意义

作者报告了４８例急性白血病患者的骨髓髓系白血病细胞集落（ＡＭＬ－ＣＦＵ）和粒－单核细胞集落（ＧＭ－ＣＦＵ）体外培养的结果。结果表明，急非淋白血病治疗前ＡＭＬ－ＣＦＵ数比缓解组高，而ＧＭ－ＣＦＵ比缓解组低，差异显著。观察１４例急非淋白血病患者治疗前ＡＭＬ－ＣＦＵ数与预后的关系，发现ＡＭＬ－ＣＦＵ丛／集比值具有判断预后的价值，ＡＭＬ－ＣＦＵ数与此无关。本文还提出，ＡＭＬ－ＣＦＵ培养用于微小残余白血病的诊断必须结合形态观察。     

急性白血病患者骨髓细胞体外培养及其临床意义

作者报告了４８例急性白血病患者的骨髓髓系白血病细胞集落（ＡＭＬＣＦＵ）和粒－单核细胞集落（ＧＭ－ＣＦＵ）体外培养的结果。结果表明，急非淋白血病治疗前ＡＭＬ－ＣＦＵ数比缓解组高，而ＧＭ－ＣＦＵ比缓解组低，差异显著。观察１４例急非淋白血病患者治疗前ＡＭＬ－ＣＦＵ数与预后的关系，发现ＡＭＬ－ＣＦＵ丛／集比值具有判断预后的价值，ＡＭＬ－ＣＦＵ数与此无关。本文还提出，ＡＭＬ－ＣＦＵ培养用于微小残余白血病的诊     

脐血造血干细胞特性研究

应用造血祖细胞体外培养和流式细胞术（ＦＣＭ），观察了脐血中粒一单系祖细胞（ＣＰＵ－ＧＭ）、红系祖细胞（ＢＦＵ－Ｅ）的数量和特性，并对其细胞增殖周期和骨贿及成人外周血做了比较，实验提示脐血中含丰富的ＣＦＵ－ＧＭ和ＢＦＵ－Ｅ，其数量低于成人骨髓而大大超过外周血水平，脐血红系祖细胞对ＥＰＯ、ＢＰＡ表现出更高的敏感性，而粒系祖细胞对ＣＳＦ的敏感性和骨髓比较似无明显差别．脐血Ｓ期、Ｇ２＋Ｍ期，及Ｓ＋Ｇ２Ｍ期细胞数均明显低于骨髓，虽略高于外周血各期细胞数，但差别无显著性意义．     

维拉帕米联用阿霉素、长春新碱、足叶己甙体外净化白血病细胞

采用体外克隆形成培养技术研究维拉帕米（ＶＰＬ）联用阿霉素（ＡＤＭ）、长春新碱（ＶＣＲ）和足叶己甙（ＶＰ－１６）体外净化白血病细胞，结果显示：ＶＰＬ２．２μｍｏｌ／Ｌ能明显增加单一应用的不同浓度ＡＤＭ、ＶＣＲ或ＶＰ－１６对白血病细胞克隆形成单位（Ｌ－ＣＦＵ）的抑制作用，而不增加其对正常粒巨系克隆形成单位（ＧＭ－ＣＦＵ）的毒性。０．９２μｍｏｌ／ＬＡＤＭ、０．０２５０μｍｏｌ／ＬＶＣＲ及１．７０μｍｏｌ／ＬＶＰ－１６联合应用下，Ｌ－ＣＦＵ集落存活率为１１．６１％％，再联用２．２０μｍｏｌ／ＬＶＰＬ则为３．５２％；而相同条件下ＧＭ－ＣＦＵ集落存活率分别为３５．８１％及２６．０５％（与相应Ｌ－ＣＦＵ组相比，Ｐ＜０．０１），提示ＶＰＬ能明显增加上述化疗药物联合应用下的选择性体外净化白血病细胞作用。     

阵发性睡眠性血红蛋白尿患者的淋巴细胞对红系和粒-巨噬系祖细胞的影响

为了研究阵发性睡眠性血红蛋白尿（ＰＮＨ）患者的淋巴细胞对红系和粒－巨噬系祖细胞的影响，将ＰＮＨ患者的植物血凝素－淋巴细胞培养液（ＰＨＡ－ＬＣＭ）加入造血祖细胞培养基中，用于红系爆式集落形成单位（ＢＦＵ－Ｅ）和粒－巨噬系集落形成单位（ＣＦＵ－ＧＭ）的培养。结果在含有ＰＮＨ患者的ＰＨＡ－ＬＣＭ的培养条件下，ＰＮＨ患者骨髓ＢＦＵ－Ｅ和ＣＦＵ－ＧＭ集落数明显低于含有正常人ＰＨＡ－ＬＣＭ的培养条件下的集落数；正常人骨髓ＢＦＵ－Ｅ和ＣＦＵ－ＧＭ集落数亦明显低于含有正常人的ＰＨＡ－ＬＣＭ培养条件下的集落数。结果表明ＰＮＨ患者淋巴细胞对造血的支持作用减弱。     

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.