系列染色法分析人—（人—鼠）杂交瘤C8的染色体

Ｃ８杂交瘤分泌人的ＩｇＭ（λ）单克隆抗体，是具有肾综合出血瘤病毒抗原内影像作用的Ａｂ２（β）。我们用常规Ｇｉｅｍｓａ染色、Ｇ－分带和Ｃ－分带的系列染色法对Ｃ８杂交瘤细胞的染色体进行分析，发现除了小鼠染色体外，还含有人的１，２，５，７，９，１２，１６，１７，１８，１９，２０，２１和２２号染色体及大量标记染色体，人染色体中以较短的染色体出现频率较高。用系列染色法分析人－鼠杂交瘤中的染色体比单独用Ｇ分带     

抗人粒细胞集落刺激因子单克隆抗体的研制

应用杂交瘤技术，用重组人Ｇ－ＣＳＦ（ｒｈＧ－ＣＳＦ）免疫Ｂａｌｂ／ｃ小鼠，然后将其脾脏细胞与小鼠骨髓瘤细胞ＮＳ－１融合，成功地获得了多种能够分泌抗ｒｈＧ－ＣＳＦ单克隆抗体（ＭｃＡｂ）的杂交癌细胞。对其中的２株杂交瘤细胞２Ａ６和２Ｃ２分泌ＭｃＡｂ的研究表明，它们能够特异性地和ｒｈＧ－ＣＳＦ结合，而与重组的人ＧＭ－ＣＳＦ、ＩＬ－ＣＳＦ、ＩＬ－２、ＩＬ－２α和ＴＮＦ细胞因子无交叉反应，为抗Ｇ－ＣＳＦ特异性ＭｃＡｂ。这些杂交瘤细胞经反复冻存和复苏后，仍能稳定地分泌ＭｃＡｂ。     

抗人Hb单克隆抗体的制备与鉴定

用超声波快速乳化人Ｈｂ，作为抗原免疫ＢＡＬＢ／Ｃ小鼠，取其脾细胞与Ｓｐ２／０骨髓瘤细胞经离心ＰＥＧ法融合，微波ＥＬＩＳＡ筛选阳性克隆，获得三株分泌针对人Ｈｂ不同抗原位点的单克隆抗体杂交瘤细胞系。分别命名为Ｈｂ２６４、Ｈｂ２１０和Ｈｂ２３８。其中Ｈｂ２６４能特异识别人Ｈｂ的β链而不与动物Ｈｂ交叉反应；解离常数Ｋｂ为１．６×１０￣（－８）ｍｏｌ／Ｌ，ＩｇＧ＿（２ａ）。Ｈｂ２１０能结合人Ｈｂ的α链，可被猪Ｈｂ抑制，但亲合力低１００倍；Ｋｄ（人Ｈｂ）为２．８×１０￣（－８）ｍｏｌ／Ｌ；Ｋｄ（猪Ｈｂ）为３．０×１０￣（－４）ｍｏｌ／Ｌ；ＩｇＧ＿（２ｂ）。Ｈｂ２３８是两个脾细胞与一个Ｓｐ２／０细胞融合而成的三体瘤（ｔｒｉｏｍａ）；染色体１３２条；Ｈｂ２３８单克隆抗体可同人Ｈｂ的α和β链结合，Ｋｄ（人Ｈｂ）为８．９×１０￣（－５）ｍｏｌ／Ｌ；ＩｇＧ＿（２ａ）；经分析鉴定，Ｈｂ２３８是针对人Ｈｂα和β链的双特异性抗体。本方法对免疫学隐血检测、法医学鉴定和双特异抗体的研制有一定意义。     

人肺腺癌细胞系SPC－A_8的建立及生物学特性

１９８９年８月４日，作者以一例肺腺癌手术标本（原发灶）为原代培养材料，建立了能长期稳定传代培养的肺腺癌细胞系ＳＰＣ－Ａ８。类多边形细胞贴壁生长，倍增时间３２．５小时，克隆形成率２３．９％，ＤＮＡ指数（ＤＩ）２．１６，染色体众数在７７～８２范围内，核型为８６．ＸＹ．＋３Ａ，－２Ｂ，＋１１Ｃ，－３Ｄ，＋８Ｅ，＋６Ｆ，＋１０Ｇ，另有５条染色体不能分组。ＳＰＣ－Ａ８细胞的Ｇ６ＰＤ和ＬＤＨ同功酶谱与ＨｅＬａ细胞相同。ＳＰＣ－Ａ８细胞的裸鼠移植瘤呈腺癌结构。以上特征证明ＳＰＣ－Ａ８为人肺腺癌细胞系。     

冻存增强人外周血单个核细胞产生IL－2的机理初探

作者用ＥＬＩＳＡ法研究了冻存对人外周血革个核细胞（ＰＢＭＣ）产生白介素２（ＩＬ－２）的影响。结果表明，冻存后ＰＢＭＣ产生ＩＬ－２能力明显增强；去除ＣＤ８＋细胞或加入消炎痛后，ＰＢＭＣ产生ＩＬ－２能力增强，且与ＰＢＭＣ冻存后产生ＩＬ－２水平相同。研究提示：冻存过程有可能通过抑制ＰＧＥ２分泌细胞及使ＣＤ８＋细胞失活，使ＰＢＭＣ增加ＩＬ－２的产生。     

一株抗人胆管癌相关抗原杂交瘤细胞株的建立及鉴定

目的 建立能分泌与人胆管癌组织特异结合的高效价抗人胆管癌相关抗原单克隆抗体的杂交瘤细胞株。方法 用２的人胆管癌细胞系Ｓｋ－ＣＨＡ－１免疫ＢＡＬＢ／ｃ小鼠后，获取免疫小鼠的脾细胞。与小鼠骨髓瘤ＳＰ２／０融合，ＥＬＩＳＡ方法及免疫荧光染色法筛选细胞晤后生成的杂交瘤细胞株。结果 ＥＬＩＳＡ方法及免疫荧光染色法共筛选出５株能持续稳定分泌抗人胆管癌相关抗原单克隆抗体的杂交瘤细胞株，其中２Ｆ４Ｅ８杂交瘤细胞株     

人源性抗EB病毒IgG/VCA抗体在SCID小鼠中的诱导

将人外周血淋巴细胞（ＰＢＬ）和腹腔淋巴结淋巴细胞（ＰＬＮＬ）移植入严重联合免疫缺陷疾病（ＳＣＩＤ）小鼠腹腔，２个月后，小鼠血清内产生人源性ＩｇＧ和抗ＥＢ病毒壳抗原ＩｇＧ抗体（ＩｇＧ／ＶＣＡ）。比较结果显示，用Ｂ９５－８细胞作为ＶＣＡ来源所诱导的实验组１０只小鼠，ＩｇＧ／ＶＣＡ阳性率为７０％（７／１０），对照组为１７％（２／１２）。ＩｇＧ／ＶＣＡ的几何平均滴度（ＧＭＴ）和血清ＩｇＧ浓度，在１４只ＳＣＩＤ－ＰＬＮＬ小鼠中为１∶１０８和（９６．２±５６．４）μｇ／Ｌ；在８只ＳＣＩＤ－ＰＢＬ小鼠为１∶７．８和（１３．８４±６．０）μｇ／Ｌ。该结果提示，ＳＣＩＤ－ＰＬＮＬ小鼠较ＳＣＩＤ－ＰＢＬ小鼠更适合用于人源性特异ＩｇＧ的诱导。     

抗HSV－1杂交瘤细胞系的建立及单抗特性研究

以ＨＳＶ－１为抗原，免疫ＢＡＬＢ／Ｃ鼠，取其脾细胞在ＰＧＥ介导下与ＳＰ２／０细胞常规融合，ＩＦＡ法筛选鉴定，反复克隆，共获得７株能稳定、持续分泌抗ＨＳＶ的ＭｃＡｂ的杂交瘤细胞系。核型分析染色体数为８７～１０３条之间，Ｉｇ类型分别为ＬｇＧ＿１、ＩｇＧ＿（２ｇ）、ＩｇＧ＿３，腹水抗体效价在１０￣（－５）～１０￣（－７）之间免疫沉淀。ＳＤＳ—ＰＡＧＥ分析，２株与１３２Ｋ多肽发生特异性反应，只具有ＨＳＶ－１型特异性，其余３株与１２０～１２８Ｋ多肽，２株与６０Ｋ多肽发生特异性反应，具有ＨＳＶ型共同抗原特异性。７株ＭｃＡｂ与ＣＭＶ均不发生特异反应。这些杂交瘤细胞系的建立对于ＨＳＶ的临床早期、快速诊断有重要的应用价值。     

重组人GM—CSF—IL2融合蛋白（G3）单克隆抗体的研制和鉴定

用重组人粒细胞－巨噬细胞集落刺激因子－白细胞介素３（ｒｈＧＭ－ＣＳＦ－ＩＬ３）融合蛋白（Ｇ３）作国免疫原。通过Ｂ淋巴细胞杂交瘤技术建立了两珠稳定分泌抗ｒｈＧＭ－ＩＬ３（Ｇ３）单克隆抗体的杂交瘤细胞株，分别命名为ＭＧ３１和ＭＧ３２。经鉴定，两种单抗均为小鼠ＩｇＧ１亚类。其染色体众数分别为９１和８６．并能特异地识别分子量约３０ＫＤ的Ｇ３。ＭＧ３１和ＭＧ３２和３个月传代培养及冻存复苏。在培养液及Ｂａｌｂ     

肿瘤坏死因子—β抗人肺癌细胞增殖作用的实验研究

用结晶紫染色法测定了肿瘤坏死因子－β（ＴＮＦ－β）单独应用及与细胞因子γ－干扰素（ＩＦＮ－γ）、白细胞介素－２（ＩＬ－２）和与抗肿瘤药物丝裂霉素（ＭＭＣ）、阿霉素（ＤＸＲ）、顺铂（ＣＤＤＰ）联合应用，对体外培养的人肺腺癌细胞株ＡＧＺＹ－８３ａ细胞的抗增殖作用。结果表明，ＴＮＦ－β有抗肺癌细胞增殖的作用，其强度为（３６．６±４．３）％；与细胞因子或抗肿瘤药物伍用能增强其作用，在抗肿瘤药物中以与阿霉素配伍为最佳，抗增殖作用可达到（６６．１±８．４）％。     

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.