猪链球菌反应调节因子CovR单克隆抗体的制备与鉴定

目的CovR是一个全局性反应调控因子,对猪链球菌的致病性具有重要调控作用。文中制备抗2型猪链球菌（Streptococcus suis serotype2,S.suis2）反应调节因子CovR蛋白单克隆抗体（mAb）,以便对CovR的调控机制进行系统研究。方法以基因工程重组CovR蛋白为免疫原免疫BALB/c小鼠,采用淋巴细胞杂交瘤技术将免疫后的小鼠脾细胞与SP2/0骨髓瘤细胞融合,筛选可稳定分泌抗CovR mAb的杂交瘤细胞株。通过间接ELISA法和Western blot鉴定抗CovR mAb的特异性后,制备小鼠腹水并测定单抗腹水的抗体效价。单抗分型ELISA鉴定抗CovR单克隆抗体IgG亚类。结果获得2株能稳定分泌抗CovR mAb的的杂交瘤细胞株1A4和4D7,其培养上清抗体效价分别为1∶800、1∶1600,其相应单抗腹水的抗体效价分别为1∶819200、1∶1638400。mAb 1A4和4D7IgG亚类分别为IgG2b、IgGl。结论成功制备了抗CovR mAb,为进一步研究CovR的调控机制奠定了基础。     

抗蓝载体单克隆抗体的制备及特性鉴定

目的制备抗蓝载体(blue carrier,BC)单克隆抗体(mAb),为相关研究提供支持与工具。方法用人工合成肽与蓝载体交联后免疫Balb/c小鼠,取其脾细胞与NS-1融合制备杂交瘤,经筛选和3次克隆化,从制备的腹水中纯化单克隆抗体。用ELISA以及Dot-ELISA方法鉴定单克隆抗体的特性(效价、Ig亚类、特异性以及亲和力)。结果筛选到1株可稳定分泌抗蓝载体单克隆抗体的杂交瘤细胞5B5,腹水效价2×10-6,单抗亚类为IgG1,抗体亲和力为7.8×108。Dot-ELISA结果显示,在相同条件下5B5mAb只与蓝载体特异性结合,与钥孔戚血蓝素(KLH)、牛血清白蛋白(BSA)、鸡卵清白蛋白(OVA)等载体蛋白不发生交叉反应。结论获得1株能特异性识别蓝载体蛋白的mAb,为评价短肽及半抗原交联免疫效果、某些疾病诊断及治疗方法疗效提供了工具。     

牙龈卟啉单胞菌特异性单克隆抗体的制备

目的 制备特异性识别牙龈卟啉单胞菌(Porphyromonas gingivalis,P.g)的单克隆抗体(monoclonal antibody,mAb)。方法 ①采用杂交瘤的方法制备m Ab,用P.g重组血凝素2(recombinant Hemagglutinin 2,r HA2)免疫BALB/c小鼠,间接ELISA筛选特异性识别P.g的杂交瘤细胞株;②间接ELISA检测mAb的效价及识别P.g的特异性、敏感性。结果 筛选到5株特异性识别P.g的m Abs,C10、F3、F3-2、G3和G3-2。其中,C10、G3和G3-2免疫球蛋白亚类为IgG2a型;F3和F3-2免疫球蛋白亚类为IgG1型。mAb C10、G3、F3和F3-2识别P.g的效价均1∶128 000;mAb G3-2识别P.g的效价1∶16 000;5株mAb识别r HA2的效价均1∶128 000。5株mAb均特异性识别5×105cfu/mL的P.g ATCC33277。结论 制备了5株特异性识别P.g的mAb,可用于各种免疫学技术,为开发P.g检测工具提供了条件,对牙周病的诊断和治疗有一定的意义。     

抗HBsAg单克隆抗体的制备与生物学特性的鉴定

目的:制备分泌抗HBV S蛋白的单克隆抗体的杂交瘤细胞株,并鉴定其特性,为建立快速诊断HBV感染的方法奠定基础.方法:以重组乙肝疫苗免疫BALB/c小鼠,通过细胞融合建立了能稳定分泌抗HBsAg单抗的杂交瘤细胞株,利用间接ELISA技术和Western blot进行单抗特异性的鉴定,同时采用间接ELISA方法鉴定mAb的Ig亚类,检测mAb的效价及相对亲和力.结果:获得1株可分泌特异性mAb的杂交瘤细胞4D2,其抗体亚类为IgG1型,腹水效价为1:10(6),相对亲和力在10(5)以上.结论:成功地制备出抗HBV S蛋白的单克隆抗体,为建立快速特异检测HBV感染的实验方法提供了有力的工具.     

抗人类疱疹病毒7型南京分离株YY5单克隆抗体的制备与鉴定

目的:制备抗人类疱疹病毒7型(HHV-7)单克隆抗体,应用于临床与科研。方法:用纯化的HHV-7南京株YY5免疫Balb/c小鼠,取其脾细胞与骨髓瘤细胞SP2/0融合,经间接ELISA法筛选。间接免疫荧光、免疫印迹试验等方法鉴定单抗。结果:获得了3株分泌抗(HHV-7)单克隆抗体的杂交瘤细胞系,分别命名为6H9、6C11、4D5。单克隆抗体亚类鉴定表明:6H9为IgG1类,6C11、4D5为IgM类。用间接ELISA方法检测单抗腹水滴度分别为:1:6.40×104,1:1.28×105,1:1.00×103。免疫印迹试验结果表明:6C11能与分子质量约70 ku大小的病毒蛋白结合。结论:成功制备并鉴定3株抗HHV-7单克隆抗体,为进一步研究HHV-7的特性及为临床快速诊断提供可能。     

人穿孔素C肽段的单克隆抗体和免疫血清的制备和鉴定

目的制备人穿孔素特异性单克隆抗体和免疫血清。方法利用基因重组技术获得穿孔素(PFP)C端125个氨基酸的肽段免疫Balb/c小鼠和家兔。经取小鼠脾细胞与骨髓瘤细胞融合,筛选分泌单克隆抗体的杂交瘤细胞株,并用Western印迹和免疫组化法鉴定所制备的单克隆抗体。结果获得4个稳定的分泌抗rhPFP-C的杂交瘤细胞株,腹水抗体的ELISA滴度为1∶3.2×103～1∶6.4×106。兔免疫血清的滴度为1∶3.2×104。结论利用重组人穿孔素肽段可制备出高特异性、高滴度的单克隆抗体和免疫血清。     

抗马尔尼菲青霉单克隆抗体的制备和鉴定

目的制备和鉴定抗马尔尼菲青霉单克隆抗体(mAb)。方法用基因重组马尔尼菲青霉甘露糖蛋白1(MP1)抗原免疫BALB/c小鼠,制备mAb,并采用ELISA间接法和免疫印迹进行筛选和鉴定。结果筛选出4株稳定分泌抗马尔尼菲青霉mAb杂交瘤细胞株,IgG亚类鉴定均为IgG1,抗体亲和常数分别为8.2×10-9、4.7×10-9、6.5×10-9和2.7×10-9,免疫印迹证实马尔尼菲青霉mAb特异性识别MP1。结论4个杂交瘤细胞株特异性好、亲和力高,为马尔尼菲青霉病的快速诊断奠定了基础。     

氯胺酮单克隆抗体的制备及生物学特性的研究

目的制备抗氯胺酮(ketamine)的单克隆抗体(mAb),并鉴定其特性,为氯胺酮的胶体金免疫试纸条研制奠定基础。方法氯胺酮-BSA免疫BALB/c小鼠,采用杂交瘤技术制备抗氯胺酮的mAb。采用间接ELISA、竞争抑制ELISA和Western blot对mAb的特异性进行鉴定。采用间接ELISA法鉴定mAb的Ig亚类、检测其腹水效价及相对亲和力,并进行表位分析。结果获得2株可分泌特异性mAb的杂交瘤细胞(FB12b和CH10),其Ig亚类分别为IgG2a和IgG3;腹水mAb的效价均为1∶106;mAb FB12b和CH10的相对亲和力均在105以上。ELISA相加实验的结果显示,2株mAb可识别不同的抗原表位。结论成功制备抗氯胺酮的2株mAb,为建立快速特异检测氯胺酮滥用的现场检测方法提供了有力的工具。     

三株抗白念珠菌单克隆抗体的制备与鉴定

目的 :为进一步研究白念珠菌保护性抗体以及系统性念珠菌病早期诊断奠定基础。方法 :运用细胞融合、间接ELISA、IIF、SDS PAGE及免疫印迹等技术 ,制备并鉴定抗白色念珠菌单克隆抗体。结果 :建立了3株分泌抗白念珠菌胞壁单克隆抗体杂交瘤细胞株1B5、3E8、4C7 ,亚类分析显示1B5为IgM ,3E8和4C7为IgG1,3株单抗皆能使白念珠菌孢子和芽管染上荧光 ,1B5单抗能识别白念珠菌胞壁外膜上分子量约为32×103u抗原成分。结论 :制备成功3株抗白念珠菌胞壁外膜成分单克隆抗体 ,其中1B5单抗是抗白念珠菌胞壁外膜上分子量约为32×103u抗原成分的单克隆抗体。     

泰泽病原体单克隆抗体的制备和鉴定

目的　制备多种抗泰泽病原体的单克隆抗体 ,用于该菌隐性感染的检测。方法　用含泰泽病原体的大鼠肝匀浆免疫BALB c小鼠 ,采用杂交瘤技术和间接免疫荧光方法筛选抗该菌的单克隆抗体 ;运用免疫电镜、Westernblotting和免疫双向扩散试验确定单克隆抗体的抗原定位和相对分子质量及IgG亚类型。结果　共筛选出 5种单克隆抗体 (M2、M3、M4、M5和M7)。免疫电镜表明 :抗体M2、M4、M5、和M7与泰泽病原体的细胞壁结合 ,而M3为抗菌毛的单克隆抗体 ;Westernblotting结果表明 :抗体M2、M3和M4与相对分子质量约为 6 4× 10 3的抗原有特异性结合 ,M5与M7与相对分子质量约为 4 1× 10 3的抗原特异性结合 ;M2、M5、M7为IgG1 ,M3为IgG2b,M4为IgG2a。对模拟自然感染大鼠考的松激发试验阳性为 2 10 ,而单克隆抗体为诊断抗体的IFA则为 8 10。除M7外 ,4种单抗不与清洁级以上大鼠回盲部细菌发生反应。结论　筛选的杂交瘤细胞能稳定分泌抗体 ,其IFA效价达 1∶10 2 4 ;表明这些抗体具有高效价、较高特异性和敏感性。     

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.