重组人白细胞介素—3在大肠杆菌中表达及纯化研究

将化学合成的人白细胞介素－３（ｈＩＬ－３）基因与表达质粒ＰＫＫ２２３－３重组并转化大肠杆菌ＪＭ１０５，重组菌在摇瓶中发酵并诱导表达，表达产量达菌体蛋白质总量的５３％么上。发酵菌经超声破碎后得到包本，经洗涤处理使包含体纯度达９０％以上。     

人IL—4重组逆转录病毒载体的构建及在人肿瘤细胞中的表达

利用多聚酶链反应（ＰＣＲ）方法，从ＰＣＤ－ｈＩＬ－４质粒中扩增得到人白细胞介素４（ｈＩＬ－４）的ｃＤＮＡ－。ＤＮＡ序列测定证实此片段包含完整的ＩＬ－４开放阅读框架。应用ＤＮＡ重组技术，将此ｃＤＮＡ重组于逆转录病毒载休ＬＸＳＮ。用脂质体转染法将此重组质粒导入病毒包装细胞ＰＡ３１７。得到滴度为２．５ｘ１０ＣＦＵ／ｍｌ的感染性病毒。病毒感染人白血病细胞株ＨＬ－６０、Ｋ５６２及Ｂｕｒｋｉｔ淋巴瘤细胞株Ｒａｊｉ，使之表达并分泌ＩＬ－４。逆转录ＰＣＲ（ＲＴ－ＰＣＲ）法证实ｈＩＬ－４ｃＵＮＡ可在上述肿瘤细胞中持续转录。ＥＬＩＳＡ怯证实病肿瘤细胞分辨ＩＬ一４水平可高达３００Ｐ／１０细胞．２４小时。本研究为进一步探讨转ＩＬ一４基因用于血液系统恶性肿瘤免疫治疗的价值提供了基础。     

常压色谱分离纯化重组人白细胞介素2

作采用７ｍｏｌ／Ｌ盐酸胍直接裂解重组人白细胞介素２（ｒｈＩＬ－２）工程菌，溶解包含体蛋白，利用硫水色谱、凝胶过滤、离子交换分离纯化ｒｈＩＬ－２，各步收率分别为１４０％，８５％，７０％。终产品比活性为１．９×１０＾６Ｕ／ｍｇ，经ＳＤＳ－ＰＡＧＥ鉴定为单一条带，得到高比活高纯度的ｒｈＩＬ－２。本方法利用疏水色谱既能分离又能促进ｒｈＩＬ－２复性的特点，克服了包含体蛋白较难溶解双易聚合的缺点，提出了ｒｈ     

人重组白细胞介素—8的快速纯化

报道一种快速人重组ＩＬ－８纯化方法，大肠杆菌表达的ＩＬ－８包涵体经尿素变性后，直接用ＤＥＡＥ柱和ＳｅｙｈａｄｅｘＧ５０柱纯化，纯化的ｈＩＬ－８经ＦＰＬＣ鉴定，纯度的９０％以上，该法为实验室快速，简便纯ｈＩＬ－８提供了新的技术路线。     

重组人白细胞介素－2的纯化研究

本文对大肠杆菌表达重组人白细胞介素－２（ｒＩＬ－２）进行了纯化研究。从ｒＩＬ－２菌株发酵后的包含体中，采用ＳｅｐｈａｃｒｙｌＳ－２００和ＤＥＡＥ－纤维素两种柱层析法纯化了ｒＩＬ－２，其比活性达４．１×１０￣６Ｕ／ｍｇ蛋白，回收率为３５％，提纯倍数为１９．５。     

逆转录病毒介导人白细胞介素2基因在人膀胱癌细胞中的表达

用ＰＡ３１７包装细胞系包装人白细胞介素２（ｈＩＬ－２）基因逆转录病毒表达载体ｐＺｉｐ－ｈＩＬ－２后，获得高效价逆转录病毒（０．４～１．２）×１０５ｃｆｕ／ｍｌ。病毒感染人膀胱细胞系ＥＪ，通过Ｇ４１８抗性筛选及活性检测，得到一株高分泌ｈＩＬ－２（２６０Ｕ／ｍｌ）克隆ＥＪ／ｈＩＬ－２，经Ｓｏｕｔｈｅｒｎ印迹分析证实ｈＩＬ－２基因已整合到ＥＪ／ｈＩＬ－２基因组中。转ｈＩＬ－２基因在人膀胱癌细胞中的高效表达，为人膀胱癌转ｈＩＬ－２基因瘤苗的应用研究打下了基础。     

重组人白细胞介素2—绿脓杆菌外毒素融合蛋白的纯化及复性

目的 探讨该所发明的新方法对重组人白细胞介素2－绿脓杆菌外毒素（IL－2－PE66^4lu）融合蛋白进行纯化与复性的效果。方法 采用该所发明的新方法提纯包涵体，包涵体复性后，样品经DEAE＝SepharoseFF离子交换层析，获得融合蛋白纯品。结果 获得的具有生物学活性的融合蛋白纯度达到95％，复性咽收率为80％。结论 此包涵体分离纯化技术简便、实用，可为中试研究和规模化生产提供基础。     

以包涵体形式表达的6B11卵巢癌抗独特型单链抗体的复性、纯化和活性研究

目的：探讨以细菌胞浆内包涵体形式表达的６Ｂ１１卵巢癌抗独特型单链抗体（６Ｂ１１ｓｃＦｖ）的复性、纯化及其活性。方法：重组质粒ｐＬ６Ｂ１１ｓｃＦｖ转化大肠杆菌ｐｏｐ２１３６，温度诱导，以包涵体形式获高效表达。超声破碎细菌细胞得包涵体，用８ｍｏｌ·Ｌ－１尿素溶解包涵体后直接稀释复性，探讨复性条件并采用ＤＥＡＥＳｅｐｈａｒｏｓｅＦａｓｔＦｌｏｗ离子交换层析纯化复性蛋白，ＳＤＳＰＡＧＥ分析蛋白纯度，Ｗｅｓｔｅｒｎｂｌｏｔ、ＥＬＩＳＡ及竞争抑制ＥＬＩＳＡ测活性。结果：复性蛋白质经纯化，纯度达９５％以上。当氧化型谷胱甘肽（ＧＳＳＧ）浓度为５ｍｍｏｌ·Ｌ－１，还原型谷胱甘肽（ＧＳＨ）浓度为０．５ｍｍｏｌ·Ｌ－１，１０℃复性４８ｈ以上时，复性率较高。纯化后的表达蛋白６Ｂ１１ｓｃＦｖ能与ＨＲＰＣＯＣ１６６９卵巢癌单抗反应并与卵巢癌抗原共同竞争结合卵巢癌单抗ＣＯＣ１６６９，抑制率达６７％，Ｗｅｓｔｅｒｎｂｌｏｔ显示其相对分子质量为２８×１０４，证明纯化后的表达蛋白质，能模拟卵巢癌抗原与卵巢癌单抗特异结合。结论：以包涵体表达的６Ｂ１１ｓｃＦｖ，经溶解复性纯化后，纯度高，活性好。     

重组人白细胞介素2的抗原特性鉴定和部分氨基酸序列分析

以包含体形式由大肠杆菌表达的基因重组人白细胞介素２（ｒｈＩＬ－２），经纯化后其纯度已达９５％以上。我们采用免疫印迹法和部分氨基酸序列分析等较特异、敏感和准确的检测手段，对纯化ｒｈＩＬ－２的抗原特性和Ｎ末端１５个氨基酸序列进行检测分析，获得了满意的结果。     

重组人淋巴毒素α的高密度发酵、复性和纯化

目的建立和优化重组人淋巴毒素α(rhLT-α)工程菌高密度发酵方法以及目的蛋白的复性和纯化方法,得到高纯度的重组人淋巴毒素α。方法高密度发酵rhLT-α工程菌,超声破碎细胞提取包涵体,经过复性后,用DEAE Sepharose FF,Phenyl Sepharose FF(LS)进行分离纯化。结果重组人淋巴毒素α以包涵体形式表达,经过破碎离心收集包涵体,洗涤后包涵体纯度达到85%以上。复性后,经两步纯化,最终目的蛋白纯度达98%以上。活性达6×108U/mg以上。结论建立了高效简便的淋巴毒素生产工艺,为淋巴毒素的规模生产打下了基础。     

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.     

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.     

Electro-Acupuncture Combined with the Trigger Point Needle-Embedding for Treatment of Primary Trigeminal Neuralgia in 31 Cases

In recent years, the author of this essay has applied electro-acupuncture combined with the trigger point needle-embedding for treatment of primary trigeminal neuralgia in 31 cases, yielding satis- factory results as reported in the following.     

Investigation of Matrix Metalloproteinase -1, 2 and tissue inhibitor of matrix metalloproteinases-1 in Endometriosis

Objective： To explore the role of matrix metalloproteinase-1,2 （MMP-1, MMP-2） and tissue inhibitor of matrix metalloproteinases-1 （TIMP-1） in endometriosis. Methods： The eutopic and ectopic endometria from 40 subjects suffering from endometriosis and regular.endometria from 40 subjects （excluding endometriosis） were collected and examined by in situ hybridization technology and western blot assay. Results： Both expressions of MMP-1 and -2 were stronger in ectopic endometrium and eutopic endometrium than in normal endometrium. On the contrary, the expression of TIMP-1 in ectopic endometrium and eutopic endometrium was lower. The differences were significant （P 〈 0.01 ）. Moreover, there was no relationship among the expressions of MMP-1, 2 and TIMP-1 in ectopic endometrium. Conclusion： The expressions of MMP-1, 2 and TIMP-1 lose balance and lack of periodic changes in ectopic endometrium , which explains the biological invasive behavior of endometriosis. It was suggested-that regulating the balance between the MMPs and TIMP-1 should be an ideal therapeutic target to endometriosis.     

Shi Da-zhuo (史大卓) —An outstanding cardiologist of integrative medicine

Prof. SHI Da-zhuo, Ph.D., male, was born on March 20, 1960. Prof. SHI entered the Ph.D. program in 1990 at the China Academy of Chinese Medical Sciences under the supervision of Prof. CHEN Ke-ji, majoring in the treatment of cardiovascular diseases. After receiving his Ph.D. degree in 1993, Prof. SHI started working at the Cardiovascular Center in Xiyuan Hospital affiliated to China Academy of Chinese Medical sciences.     

Persist in and Carry Forward the Integrative Medical Research——Speech at the 6th National General Congress of Chinese Association of Integrative Medicine by Academician CHEN Zhu,Minister of Ministry of Health

The 6th National General Congress of Chinese Association of Integrative Medicine （CALM） was convened at 19-20, April 2008 in Beijing. Academician CHEN Zhu, the minister of Ministry of Health indicated at the congress that the integration of Chinese and Western medicine is very well in keeping with the situation of our country and the general rule of development in medical science; and as a good integration of Chinese medicine and Western medicine, it is mutually beneficial and advantageous to both of them. Seeing the creativity shown in integrative medical investigation in theoretic and methodological sides, we should and must persist in and develop it.