CD14的B细胞抗原表位预测

目的预测人CD14抗原的B细胞表位。方法采用生物信息软件和互联网服务器，预测CD14的二级结构，分析CD14表面特性（亲水性、可塑性、可及性和抗原性），再计算平均抗原指数（AI）预测CD14的B细胞抗原表位。结果CD14存在多个潜在的抗原表位，257-271序列（shnslratvnpsapr）的AI（0.04413）明显高于其它序列，305-321序列（sc-nrlnrapqpdelpev）、19-34序列（ttpepcelddedfrc）和115-134序列（ysrlkeltledlkitgtmpp）的AI分别是0.03682、0.03256和0.03025。结论257-271序列（shnslratvnpsapr）是CD14的B细胞优势抗原表位，可用于制备CD14的特异性抗体。     

FSHR胞外区抗原的二级结构预测和B细胞表位预测

目的:分析卵泡刺激素受体(Follicle stimulating hormone receptor,FSHR)胞外区蛋白的二级结构,在线预测FSHR胞外区潜在的B细胞表位.方法:利用DNAStar Protein软件对FSHR胞外区蛋白的二级结构和表面特性进行分析,联合在线B细胞表位预测,预测FSHR胞外区蛋白可能的抗原表位.合成预测的B细胞表位肽,对其抗原性进行鉴定.结果:FSHR胞外区蛋白可能的抗原表位区域为17～34、4244、116～122、142～147、179～193、239～241、266～270、279～282、288～307.选择4个区域合成肽段表位区域能与免疫抗血清发生抗原特异性反应.结论:应用多参数成功预测了FSHR胞外区蛋白抗原的B细胞表位.     

Eppin抗原的二级结构分析B细胞表位预测

目的 分析Eppin抗原的二级结构并预测其B细胞表位.方法 联合运用多种方法对Eppin的二级结构和表面特性,如亲水性、理化性质、可及性、免疫原性和可塑性等方面进行分析,预测其抗原表位.结果 Eppin存在多个潜在的抗原表位位点,可能的蛋白质抗原表位区域:14～23,30～44,48～54,56～68,78～85,97～106,109～116,125～132.体外实验证明,所预测抗原表位区域基本能与免疫抗血清发生抗原特异性反应.结论 应用多参数成功预测了Eppin抗原的B细胞表位.     

人白细胞介素-36α蛋白的二级结构及其B细胞抗原表位的预测

目的预测并分析人白细胞介素-36α蛋白的二级结构及其潜在的B细胞抗原表位。方法以人IL-36α蛋白的氨基酸序列为基础,采用生物信息软件和互联网服务器预测人IL-36α蛋白的二级结构及其亲水性、可及性和柔韧性,根据预测结果综合分析IL-36α蛋白可能的B细胞抗原表位。结果IL-36α蛋白潜在的B细胞抗原表位位于N端8～12、33～38、111～116和143～149氨基酸区段。结论预测了IL-36α蛋白的二级结构和B细胞抗原表位,为进一步研究IL-36α的生物学活性部位及利用合成肽制备抗IL-36α的多克隆抗体提供了理论依据。     

人宫颈癌基因蛋白B细胞表位及其HLA限制性细胞毒性T细胞表位预测分析

目的:预测人宫颈癌基因(human cervical cancer oncogene,HCCR)蛋白的二级结构,B细胞表位及其HLA-A,B限制性细胞毒性T细胞表位.方法:综合分析二级结构、亲水性、柔韧性、表面可及性与抗原性指数,预测HCCR蛋白的B细胞抗原表位;利用BIMAS,SYFPEITHI和NetCTL方法预测分析其HLA-A*0201限制性CTL表位,运用NetCTL方法对HLA-A的其他等位基因和HLA-B限制性CTL表位进行预测分析.结果:HCCR蛋白的二级结构主要由α-螺旋结构组成,B细胞优势表位位于N端第41～53,216～228,310～325和355～360区段;预测得到5个HLA-A*0201限制性CTL优势表位分别为YLVFLLMYL(152～160),YLFPRQLLI(159～167),LLLHNVVLL(343～351),CLFLGIISI(138～146)和SIPPFANYL(145～153),HCCR蛋白HLA-A,B限制CTL表位主要位于胞外区.结论:应用多参数预测HCCR蛋白B细胞表位及其HLA-A,B限制性细胞毒性T细胞表位,为进一步实验鉴定其表位进而制备单克隆抗体和基于HCCR抗原的肿瘤免疫学治疗奠定了基础.     

嗜肺军团菌MompS抗原二级结构分析及表位预测

目的 分析嗜肺军团菌MompS抗原的二级结构并预测其B细胞表位,初步判断其活性多肽所在区域.方法 联合运用多种方法对MompS的二级结构和表面特性,如亲水性、理化性质、可及性、免疫原性和可塑性等方面进行分析,预测其抗原表位.结果 MompS存在多个潜在抗原表位位点,可能的蛋白质抗原表位分布于三个区域:M1(353-546)、M2(1-215)、M3(216-399).体外实验证明,所预测抗原表位区域基本能与免疫血清发生抗原特异性反应.结论 应用DNA Star和胞外区在线分析软件能够成功预测MompS抗原的B细胞表位,M3区域可用于后续的活性肽表位筛选区域.     

乙型肝炎病毒e抗原的B细胞表位预测

[目的]预测乙型肝炎病毒e抗原(HBeAg)的B细胞表位.[方法]用Lasergene软件包中的Protean软件和吴玉章的氨基酸抗原指数预测法对HBeAg的氨基酸序列进行分析,预测其B细胞表位.[结果]推测最有可能的B细胞表位位于HBeAg N-端第50～63、85～94区段和第137～146区段内或它们的附近,其他区段如HBeAg N-端第12～18、24～32、37～43、118～124区段和第150～157区段内或它们的附近也可能存在B细胞表位.[结论]用多种方法预测HBeAg的B细胞表位.为制备更好的HBV感染者血清学检测相关诊断用品的研究提供线索.     

基于抗原表位预测的MUC1模拟肽表位筛选

目的:预测粘蛋白1(Mucin1,MUC1)抗原的B细胞表位,从噬菌体随机多肽文库筛选及鉴定MUC1抗原的模拟表位.方法:对MUC1的二级结构及免疫原性进行分析,预测MUC1的抗原表位.利用纯化获得的Ma695抗体筛选噬菌体随机12肽库,夹心ELISA分析噬菌体克隆,测定阳性克隆DNA序列,竞争性抑制实验鉴定阳性噬菌体克隆.结果:MUC1存在有17个潜在的抗原表位区域.经3轮筛选,获得了14个阳性克隆,DNA序列分析并推导出其氨基酸序列:KHYDPFHHRMPQ,QADTARS VALAG,VPSKPDLHVRSI及MTPIHYWNHNRV;4个噬菌体展示肽克隆抑制率均在50%以上.结论:预测MUC1抗原B细胞表位,为进一步研究MUC1结构和功能奠定了基础.所得序列KHYDPFHHRMPQ,QADTARSVALAG,VPSKPDLHVRSI及MTPIH YWN HNRV能模拟MUC1抗原表位.     

MAGE-12的新B细胞表位抗原性研究

目的:在已设计合成肿瘤抗原MAGE-12的B细胞表位基础上对其进行鉴定。方法:在预测MAGE-12的B细胞表位序列为LEQRSQHCKPEE(3～14)的基础上,采用4分枝多重抗原肽结构设计合成抗原肽,免疫C-57BL/6小鼠,产生多克隆抗体,应用ELISA实验检测多克隆抗体是否为人的抗原肽的特异性抗体。结果:免疫C-57BL/6小鼠后可产生MAGE-12的抗原特异性的多克隆抗体,抗体效价最高达1:256,证明为MAGE-12抗原肽的特异性抗体。结论:证明所预测的表位LEQRSQHCKPEE(3～14)为MAGE-12的B细胞新表位,具有抗原特异性。     

Bioinformatics analysis and B-cell epitope prediction of VP1 gene of enterovirus 71 isolated in Lu′an city

目的 对肠道病毒71型(EV71)VP1基因编码衣壳蛋白进行系统结构与功能预测,为制备EV71疫苗和诊断抗原的研究提供理论基础.方法 基于编号为1404-Luan(CHN)-08的EV71六安地区分离株VP1基因编码蛋白的氨基酸序列,应用ProtParam、SigalP、TMPRED、Sosui、SOPMA、Phyre、Bepipred等生物信息学方法预测其信号肽、跨膜区、疏水性、二级结构、三级结构等性质和潜在的B细胞表位.结果 EV71六安地区分离株VP1基因编码蛋白没有信号肽,无跨膜区,是一个亲水性蛋白;VP1蛋白二级结构以无规则卷曲和β-片层为主,含有少量的α-螺旋,少见β-转角; VP1的三级结构中4～121氨基酸部分在蛋白表面形成一环状结构(VPl GH loop);EV71 VP1潜在的B细胞表位共有6个可能的抗原表位.其中,预测分值最高的线性表位区域位于157～177位氨基酸残基.结论 成功预测了EV71六安地区分离株VP1二级结构、三级结构和B细胞表位,为制备EV71基因工程疫苗和诊断抗原的开发提供了理论基础.     

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.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

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.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Dr.Zhang Ren's Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.