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12303篇 您的检索式:作者名="Anderson J J"
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1Morinda citrifolia (Noni): A literature review and recent advances in Noni research^1显示文摘Morinda citrifolia L(Noni) has been used in folk remedies by Polynesians for over 2000 years,and is reported to have a broad range of therapeutic effects,including antibacterial,antiviral,antifungal,antitumor,antihelmin,analgesic,hypotensive,anti-inflammatory,and immune enhancing effects.In order to reveal the nutritional and medicinal value of the Noni plant,and to summarize scientific evidence that supports the Polynesians' claim,a literature review and recent advances in Noni research is given below.Brett J WEST CJarakae JENSEN Diane NOWICKI SU Chen Afa K PALU Gary ANDERSON 2002Acta Pharmacologica Sinica2002,23,12:80
2Role of ion channels in gastrointestinal cancer显示文摘In their seminal papers Hanahan and Weinberg described oncogenic processes a normal cell undergoes to be transformed into a cancer cell.The functions of ion channels in the gastrointestinal(GI)tract influence a variety of cellular processes,many of which overlap with these hallmarks of cancer.In this review we focus on the roles of the calcium(Ca^2+),sodium(Na^+),potassium(K^+),chloride(Cl^-)and zinc(Zn^2+)transporters in GI cancer,with a special emphasis on the roles of the KCNQ1 K+channel and CFTR Cl-channel in colorectal cancer(CRC).Ca^2+is a ubiquitous second messenger,serving as a signaling molecule for a variety of cellular processes such as control of the cell cycle,apoptosis,and migration.Various members of the TRP superfamily,including TRPM8,TRPM7,TRPM6 and TRPM2,have been implicated in GI cancers,especially through overexpression in pancreatic adenocarcinomas and down-regulation in colon cancer.Voltage-gated sodium channels(VGSCs)are classically associated with the initiation and conduction of action potentials in electrically excitable cells such as neurons and muscle cells.The VGSC NaV1.5 is abundantly expressed in human colorectal CRC cell lines as well as being highly expressed in primary CRC samples.Studies have demonstrated that conductance through NaV1.5 contributes significantly to CRC cell invasiveness and cancer progression.Zn2+transporters of the ZIP/SLC39A and ZnT/SLC30A families are dysregulated in all major GI organ cancers,in particular,ZIP4 up-regulation in pancreatic cancer(PC).More than 70 K+channel genes,clustered in four families,are found expressed in the GI tract,where they regulate a range of cellular processes,including gastrin secretion in the stomach and anion secretion and fluid balance in the intestinal tract.Several distinct types of K+channels are found dysregulated in the GI tract.Notable are hERG1 upregulation in PC,gastric cancer(GC)and CRC,leading to enhanced cancer angiogenesis and invasion,and KCNQ1 down-regulation in CRC,where KCNQ1 expression is associated with enhanced disease-free survival in stage II,III,and IV disease.Cl-channels are critical for a range of cellular and tissue processes in the GI tract,especially fluid balance in the colon.Most notable is CFTR,whose deficiency leads to mucus blockage,microbial dysbiosis and inflammation in the intestinal tract.CFTR is a tumor suppressor in several GI cancers.Cystic fibrosis patients are at a significant risk for CRC and low levels of CFTR expression are associated with poor overall disease-free survival in sporadic CRC.Two other classes of chloride channels that are dysregulated in GI cancers are the chloride intracellular channels(CLIC1,3&4)and the chloride channel accessory proteins(CLCA1,2,4).CLIC1&4 are upregulated in PC,GC,gallbladder cancer,and CRC,while the CLCA proteins have been reported to be down-regulated in CRC.In summary,it is clear,from the diverse influences of ion channels,that their aberrant expression and/or activity can contribute to malignant transformation and tumor progression.Further,because ion channels are often localized to the plasma membrane and subject to multiple layers of regulation,they represent promising clinical targets for therapeutic intervention including the repurposing of current drugs.Kyle J Anderson Robert T Cormier Patricia M Scott 2019World Journal of Gastroenterology2019,25,38:19
3美国急性病医院预防医院感染策略纲要(2014更新版)Ⅰ显示文摘今年本刊已经介绍过2014版的英国NHS医院预防医院感染循证指南,现在呈现在读者面前的是2014更新版《美国急性病医院预防医院感染策略纲要》。这两个指南都是基于循证医学证据更新的,各有特点。2014更新版《美国急性病医院预防医院感染策略纲要》包括导尿管相关尿路感染(CAUTI)预防策略、艰难梭菌感染(CDI)预防策略、预防手术部位感染的策略、中心静脉导管相关血流感染(CLABSI)预防策略、耐甲氧西林金黄色葡萄球菌(MRSA)预防策略、呼吸机相关性肺炎(VAP)预防策略、手卫生预防医疗机构相关感染策略。这7个策略由美国医院流行病学会(SHEA)、感染病学会(IDSA)、医院协会(AHA)、感染控制与流行病专业人员协会(APIC),以及疾病预防控制中心(CDc)、医疗卫生改善研究院(IHI)、儿科感染病学会(PIDS)、重症医学学会(SCCM)、医院药学协会(SHM)、外科感染协会(SIS)等有关协会组织参加的联合委员会共同制定。刘思娣 吴安华 Yokoe D S Anderson D J Berenholtz S M 2014中国感染控制杂志2014,13,11:17
4缺血性脑卒中和出血性脑卒中患者发病前后血压的变化显示文摘《中国高血压防治指南2010》指出,急性脑卒中的血压处理缺乏足够的临床试验证据,参考建议如下:急性脑卒中溶栓前血压应控制在<185/110mm Hg(1mm Hg=0.133kPa)。对急性缺血性脑卒中发病24h内血压升高的患者应谨慎处理,收缩压≥180mm Hg或舒张压≥100mm Hg或伴有严重心功能不全、主动脉夹层、高血压脑病者,一般不予降压。降压的合理目标是24h内血压降低约15%。有高血压病史且正在服用降压药物者,如神经功能平稳,可于脑卒中发病后24h开始使用降压药物。因此,了解脑卒中患者发病前后的血压情况对临床治疗有重要的意义。Fischer等研究者探讨缺血性脑卒中和出血性脑卒中患者发病前后血压的变化情况。结果表明,缺血性脑卒中患者发病后首次测量的收缩压低于出血性脑卒中。与发病前比较,缺血性脑卒中发病后收缩压略升高(约10.6mm Hg),24h内轻度降低(约13.6mm Hg);而出血性脑卒中发病后,收缩压明显升高(约40.7mm Hg),24h内明显下降(约41.1mm Hg)。出血性脑卒中发病前几天及几周的平均收缩压逐渐增加,而缺血性脑卒中无明显变化。出血性脑卒中患者发病3h内的最高收缩压比发病前高50.0 mm Hg,而缺血性脑卒中则低5.2mm Hg。综上所述,与发病前比较,出血性脑卒中发病后收缩压升高,而缺血性脑卒中无明显变化。Fischer U Cooney MT Bull LM Silver LE Chalmers J Anderson CS Mehta Z Rothwell PM 林东杰 叶鹏 2014中华高血压杂志2014,22,4:13
5常规脂蛋白检测和载脂蛋白在心血管病预测中的比较显示文摘总胆固醇和高密度脂蛋白胆固醇(high density lipoprotein cholesterol,HDL-C)测量值对于心血管病风险评估至关重要,但对于其他脂质用于风险预测的效用一直存在争议。该研究纳入来自英国生物银行(Biobank)的无基线心血管病、未服用他汀类药物、有相关的脂质指标(n=346 686)的受试者。Welsh C Celis-Morales CA Brown R Mackay DF Lewsey J Mark PB Gray SR Ferguson LD Anderson JJ Lyall DM Cleland JG Jhund PS Gill J MR Pell JP Sattar N Welsh P 刘青(译) 叶鹏(摘、审校) 2019中华高血压杂志2019,27,7:10
6阿司匹林或利伐沙班对髋膝关节置换术后VTE的预防效果显示文摘静脉血栓栓塞(venous thromboembolism,VTE)是全髋关节置换(total hip arthroplasty,THA)或全膝关节置换(total knee arthroplasty,TKA)常见的术后并发症。诸多临床试验研究和Meta分析结果表明,阿司匹林在预防THA或TKA术后VTE(近端深静脉血栓形成或肺栓塞)方面可能是有效的,但缺乏与直接口服抗凝剂在出院后预防效果方面的比较。Anderson DR Dunbar M Murnaghan J 李炳林 章莹 2018中国骨科临床与基础研究杂志2018,10,2:8
7小反刍兽疫病毒(PPRV)N蛋白的表达与ELISA检测方法的建立显示文摘通过对下载的16株小反刍兽疫病毒(PPRV)N基因片段进行序列分析,合成了PPRV N基因。用NP1和NP2引物扩增。纯化的PPRV N基因在T4DNA连接酶的作用下,和PET32-a载体进行连接反应构建重组质粒pET-a-PPRV-N。经诱导表达和纯化后,得到了大量的PPRV N蛋白。用PPRV N蛋白制备免疫血清,经国际标准血清标化后作为参考阳性血清,同时以PPRV N蛋白为抗原建立间接ELISA(I-ELISA)方法。对山东省的467份羊血清检测,使用S/P(样品值/阳性值)平均值加3倍标准差的方法,计算出其临界点为0.28。应用间接ELISA和针对H蛋白的单抗为基础的C-ELISA检测来自于疫区的69份血清,结果两者的符合率为79.7%。张喜悦 王志亮 刘春菊 李林 包静月 何昭阳 Mandy C Carrie B Anderson J 2008中国兽医学报2008,28,2:8
8美国急性病医院预防医院感染策略纲要(2014更新版)Ⅱ显示文摘预防手术部位感染(SSI)的策略 Ⅰ预防SSI的基本方法推荐给所有急性病医院。 1.依据基于循证医学证据的标准及指南,对患者预防性使用抗菌药物。(Ⅰ级质量证据) 2.除非毛发干扰手术操作,否则无需剃除手术部位的毛发;需要去除毛发时,也不使用剃须刀剃毛。(Ⅱ级质量证据) 3.接受心脏手术(Ⅰ级质量证据)和非心脏手术患者(Ⅱ级质量证据)术后要立刻控制血糖。4.围手术期维持体温在常温(≥35.5℃)。刘思娣 吴安华 Yokoe D S Anderson D J Berenholtz S M 2014中国感染控制杂志2014,13,12:7
9Protective role of PI3-kinase/Akt/eNOS signaling in mechanical stress through inhibition of p38 mitogenactivated protein kinase in mouse lung显示文摘Xin-qi PENG Mahendra DAMARLA Jarrett SKIRBALL Stephanie NONAS Xiao-ying WANG Eugenia J HAN Emile J HASAN Xuan CAO Adel BOUEIZ Rachel DAMICO Rubin M TUDER Alfred M SClUTO Dana R ANDERSON Joe GNGARCIA David A KASS Paul M HASSOUN Jun-tian ZHANG 2010Acta Pharmacologica Sinica2010,31,2:6
10Psychosocial factors and their association with reflux oesophagitis,Barrett's oesophagus and oesophageal adenocarcinoma显示文摘AIM:To investigate the role of psychological characteristics as risk factors for oesophageal adenocarcinoma(OAC),as well as the reflux-mediated precursor pathway.METHODS:An all-Ireland population-based case-control study recruited 230 reflux oesophagitis(RO),224 Barrett's oesophagus(BO) and 227 OAC patients and 260 controls.Each case/control group completed measures of stress,depression,self-efficacy,self-esteem,repression and social support.A comparative analysis was undertaken using polytomous logistic regression adjusted for potential confounders.RESULTS:Compared to controls,OAC patients were almost half as likely to report high stress levels over their lifetime(P = 0.010,OR 0.51;95%CI:0.29-0.90)and 36% less likely to report having experienced depression(OR 0.64;95%CI:0.42-0.98).RO patients reported significantly higher stress than controls particularly during middle-and senior-years(P for trends < 0.001).RO patients were 37% less likely to report having been highly emotionally repressed(OR 0.63;95%CI:0.41-0.95).All case groups(OAC,RO and BO) were more likely than controls to report having had substantial amounts of social support(OR 2.84;95%CI:1.63-4.97;OR 1.97;95%CI:1.13-3.44 and OR 1.83;95%CI:1.03-3.24,respectively).CONCLUSION:The improved psychological profile of OAC patients may be explained by response shift.The role of psychological factors in the development of OAC requires further investigation.Paul Denver Michael Donnelly Liam J Murray Lesley A Anderson 2013World Journal of Gastroenterology2013,19,11:5
11Risk factors for Barrett’s oesophagus and oesophageal adenocarcinoma:Results from the FINBAR study显示文摘AIM:To investigate risk factors associated with Barrett's oesophagus and oesophageal adenocarcinoma.METHODS:This all-Ireland population-based case-control study recruited 224 Barrett's oesophagus patients,227 oesophageal adenocarcinoma patients and 260 controls.All participants underwent a structured interview with information obtained about potential lifestyle and environmental risk factors.RESULTS:Gastro-oesophageal reflux was associated with Barrett's [OR 12.0(95% CI 7.64-18.7)] and oesophageal adenocarcinoma [OR 3.48(95% CI 2.25-5.41)].Oesophageal adenocarcinoma patients were more likely than controls to be ex-or current smokers [OR 1.72(95% CI 1.06-2.81)and OR 4.84(95% CI 2.72-8.61)respectively] and to have a high body mass index [OR 2.69(95% CI 1.62-4.46)].No significant associations were observed between these risk factors and Barrett's oesophagus.Fruit but not vegetables were negatively associated with oesophageal adenocarcinoma [OR 0.50(95% CI 0.30-0.86)].CONCLUSION:A high body mass index,a diet low in fruit and cigarette smoking may be involved in the progression from Barrett's oesophagus to oesophageal adenocarcinoma.Lesley A Anderson RG Peter Watson Seamus J Murphy Brian T Johnston Harry Comber Jim Mc Guigan John V Reynolds Liam J Murray 2007World Journal of Gastroenterology2007,13,10:5
12持续气道正压通气在预防阻塞性睡眠呼吸暂停患者心血管事件中的作用显示文摘阻塞性睡眠呼吸暂停(obstructive sleep apnea,OSA)导致阵发性低氧血症,夜间交感神经系统激活,血压、氧化应激和炎症指标的升高以及高凝血症。较大的胸内负压波动也会给心脏和大血管施加机械应力。基于人群和睡眠诊所的队列研究显示,OSA与心脑血管事件,特别是脑卒中相关。McEvoy RD Antic NA Heeley E Luo Y Ou Q Zhang X Mediano O Chen R Drager LF Liu Z Chen G Du B McArdle N Mukherjee S Tripathi M Billot L Li Q Lorenzi-Filho G Barbe F Redline S Wang J Arima H Neal B White DP Grunstein RR Zhong N Anderson CS 练桂丽 叶鹏 2016中华高血压杂志2016,24,11:4
13一种新型的高频半导体量子点单电子泵显示文摘除了直流负电压外,还在浅法刻蚀出的GaAs/AlGaAs量子线上的两个金属指形门上分别叠加两个相位相差π的正弦信号,从而对形成量子点的两个势垒作不等幅调制.在无源漏偏压的情况下,通过周期形成的量子点实现了单电子的搬运.由于新的半导体量子点单电子泵不是依赖库仑阻塞效应通过隧穿进行单电子输运,因此,该器件就不会受到固定隧穿时间引起的低工作频率限制.在1.7K温度下,频率达到3GHz仍然可以观测到量子化电流平台,对应的电流值达到0.5nA量级.这种新器件提供了实现高速度、高精度搬运单电子的另一种可能途径.李玲 Kaestner B Blumenthal M D Giblin S Janssen T J B M Pepper M Anderson D Jones G Ritchie D A 高洁 2008物理学报2008,57,3:4
14Have patients with esophagitis got an increased risk of adenocarcinoma? Results from a population-based study显示文摘AIM: To examine an increased risk of esophageal adenocarcinoma is restricted to patients who develop Barrett's esophagus or whether esophagitis per se is a risk factor for adenocarcinoma.METHODS: A population-based cohort of patients with histological evidence of esophagitis without Barrett's esophagus was constructed using electronic pathology reports relating to all esophageal biopsies in Northern Ireland between 1993 and 1996. Person-years of followup and incident cases of esophageal cancer were calculated by linking the cohort to death files and the Northern Ireland Cancer Registry records. Standardized incidence ratios (SIR) were calculated for esophageal cancers (adenocarcinoma, squamous cell carcinoma (SCC), and histologically unspecified cancers).RESULTS: A total of 2 013 patients in the cohort provided 13 559 patient-years of follow-up (mean follow-up 6.7 years). None of the patients developed adenocarcinoma. Three patients developed SCC, and six developed histologically unspecified cancers. The SIR for all esophageal cancers and for SCC were 2.73 (95%CI 1.25-5.19) and 2.93 (95%CI 0.61-8.59), respectively. In a sensitivity analysis in which all unspecified esophageal cancers were treated as adenocarcinomas, the SIR for adenocarcinoma was 2.64 (0.97-5.75).CONCLUSION: The risk of adenocarcinoma is not elevated in patients with histological evidence of esophagitis without Barrett's esophagus; however, these patients may have a moderately increased risk of SCC.Further studies are required to confirm these findings,which suggest that Barrett's esophagus, not esophagitis,is the key precursor lesion in the development of adenocarcinoma.Seamus J Murphy Lesley A Anderson Brian T Johnston Deirdre A Fitzpatrick Peter RG Watson Pauline Monaghan Liam J Murray 2005World Journal of Gastroenterology2005,11,46:4
15新致病基因在颅缝早闭Crouzon综合征中的初步机制研究显示文摘目的研究Rbp4(Retinol binding protein 4)、Gpc3(Glypican family of growth factor binding protein 3)、C1qtnf3(Collagenous repeat-containing sequence of 26 KDa protein)等新致病基因在颅缝早闭症中的发病机制,为疾病非手术治疗奠定理论基础。方法以Crouzon综合征Fgfr2cC342Y/+小鼠为实验模型,应用MicroCT和组织学染色,研究小鼠颅缝闭合模式;以Fgfr2cC342Y/+模型,RT-qPCR研究Rbp4、Gpc3、C1qtnf3等新致病基因的表达差异,初步探讨其在颅缝闭合过程中的调控作用;以体外培养的Fgfr2cC342Y/+小鼠颅缝细胞为模型,研究基因突变动物细胞增殖与代谢改变。结果获得Fgfr2cC342Y/+小鼠后额缝、冠状缝、人字缝、矢状缝等颅缝闭合模式,随颅骨发育、颅缝闭合,OC(Osteocalcin)、ALP(Alkalinephosphatase)表达增加,目的基因Rbp4、Gpc3、C1qtnf3表达下降,Msx2(Muscle segment homeobox gene 2)表达增加,杂合子与野生型小鼠之间均存在显著统计学差异,与前期人颅缝组织Microarray研究结果一致。Gpc1(Glypican family ofgrowth factor binding protein 1)、FliI(Flightless I)在颅缝闭合中的表达较恒定,野生型与杂合子之间未见明显统计学差异。体外培养Fgfr2cC342Y/+小鼠颅缝细胞,CellTiter96 MTS和Quant-iT Picogreen dsDNA细胞增殖与代谢分析结果显示,Fgfr2功能获得性突变可促进冠状缝细胞的增殖,从而导致成骨增加,颅缝早闭。结论 Fgfr2cC342Y/+模型新致病基因表达趋势与前期人颅缝组织Microarray研究结果一致,Rbp4、Gpc3、C1qtnf3可能在颅缝早闭中具重要调控作用。杨娴娴 Jodie T Hatfield Susan J Hinze 穆雄铮 Peter J Anderson Barry C Powell 2012组织工程与重建外科杂志2012,8,5:3
16Efficacy of boceprevir, an NS3 protease inhibitor, in combination with peginterferon alfa-2b and ribavirin in treatment-naive patients with genotype 1 hepatitis C infection (SPRINT-1): an open-label, randomised, multicentre phase 2 trial显示文摘Paul Y Kwo Eric J Lawitz Jonathan McCone Eugene R Schiff John M Vierling David Pound Mitchell N Davis Joseph S Galati Stuart C Gordon Natarajan Ravendhran Lorenzo Rossaro Frank H Anderson Ira M Jacobson Raymond Rubin Kenneth Koury Lisa D Pedicone Clifford 2010The Lancet2010,,9742:3
17A comparative risk assessment of burden of disease and injury attributable to 67 risk factors and risk factor clusters in 21 regions, 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010显示文摘Stephen S Lim Theo Vos Abraham D Flaxman Goodarz Danaei Kenji Shibuya Heather Adair-Rohani Mohammad A AlMazroa Markus Amann H Ross Anderson Kathryn G Andrews Martin Aryee Charles Atkinson Loraine J Bacchus Adil N Bahalim Kalpana Balakrishnan John Balmes S 20122012 (9859)2012,,9859:3
18Sentinel-lymph-node resection compared with conventional axillary-lymph-node dissection in clinically node-negative patients with breast cancer: overall survival findings from the NSABP B-32 randomised phase 3 trial显示文摘David N Krag Stewart J Anderson Thomas B Julian Ann M Brown Seth P Harlow Joseph P Costantino Takamaru Ashikaga Donald L Weaver Eleftherios P Mamounas Lynne M Jalovec Thomas G Frazier R Dirk Noyes André Robidoux Hugh MC Scarth Norman Wolmark 2010Lancet Oncology2010,,10:3
19Quality of life, work productivity impairment and healthcare resources in inflammatory bowel diseases in Brazil显示文摘BACKGROUND Inflammatory bowel diseases(IBD)have been associated with a low quality of life(QoL)and a negative impact on work productivity compared to the general population.Information about disease control,patient-reported outcomes(PROs),treatment patterns and use of healthcare resources is relevant to optimizing IBD management.AIM To describe QoL and work productivity and activity impairment(WPAI),treatment patterns and use of healthcare resources among IBD patients in Brazil.METHODS A multicenter cross-sectional study included adult outpatients who were previously diagnosed with moderate to severe Crohn’s disease(CD)or ulcerative colitis(UC).At enrolment,active CD and UC were defined as having a Harvey Bradshaw Index≥8 or a CD Activity Index≥220 or calprotectin>200μg/g or previous colonoscopy results suggestive of inadequate control(per investigator criteria)and a 9-point partial Mayo score≥5,respectively.The PRO assessment included the QoL questionnaires SF-36 and EQ-5D-5L,the Inflammatory Bowel Disease Questionnaire(IBDQ),and the WPAI questionnaire.Information about healthcare resources and treatment during the previous 3 years was collected from medical records.Chi-square,Fisher’s exact and Student’s t-/Mann-Whitney U tests were used to compare PROs,treatment patterns and the use of healthcare resources by disease activity(α=0.05).RESULTS Of the 407 patients in this study(CD/UC:64.9%/35.1%,mean age 42.9/45.9 years,54.2%/56.6%female,38.3%/37.1%employed),44.7%/25.2%presented moderate-to-severe CD/UC activity,respectively,at baseline.Expressed in median values for CD/UC,respectively,the SF-36 physical component was 46.6/44.7 and the mental component was 45.2/44.2,the EQ-visual analog scale score was 80.0/70.0,and the IBDQ overall score was 164.0/165.0.Moderate to severe activity,female gender,being unemployed,a lower educational level and lower income were associated with lower QoL(P<0.05).Median work productivity impairment was 20%and 5%for CD and UC patients,respectively,and activity impairment was 30%,the latter being higher among patients with moderate to severe disease activity compared to patients with mild or no disease activity(75.0%vs 10.0%,P<0.001).For CD/UC patients,respectively,25.4%/2.8%had at least one surgery,38.3%/19.6%were hospitalized,and 70.7%/77.6%changed IBD treatment at least once during the last 3 years.The most common treatments at baseline were biologics(75.3%)and immunosuppressants(70.9%)for CD patients and 5-ASA compounds(77.5%)for UC patients.CONCLUSION Moderate to severe IBD activity,especially among CD patients,is associated with a substantial impact on QoL,work productivity impairment and an increased number of IBD surgeries and hospitalizations in Brazil.Rogerio Serafim Parra Julio MF Chebli Heda MBS Amarante Cristina Flores Jose ML Parente Odery Ramos Milene Fernandes Jose JR Rocha Marley R Feitosa Omar Feres Antonio S Scotton Rodrigo B Nones Murilo M Lima Cyrla Zaltman Carolina D Goncalves Isabella M Guimaraes Genoile O Santana Ligia Y Sassaki Rogerio S Hossne Mauro Bafutto Roberto LK Junior Mikaell AG Faria Sender J Miszputen Tarcia NF Gomes Wilson R Catapani Anderson A Faria Stella CS Souza Rosana F Caratin Juliana T Senra Maria LA Ferrari 2019World Journal of Gastroenterology2019,25,38:2
20人精浆对白细胞介素2降解和灭活作用的研究显示文摘本文报导了人精浆的免疫抑制作用及其机制的研究.我们发现在含有10%混合的 AB^+正常人血清(NHS)同时加入 ConA 和不同浓度 HSP 的条件下培养,人外周血淋巴细胞仍存活,但淋巴细胞转化受到抑制。并且,ConA 活化的淋巴细胞表面 IL—2受体增生受抑制。加入外源性 IL—2能部分地抵消低浓度 HSP 的作用;但是,加入外源性 IL—1对 HSP 的免疫抑制作用无影响。SDS—聚丙烯酰胺凝胶电泳和放射自显影结果表明 HSP 可将^(125)Ⅰ标记的 IL—2至少降解成2个小分子片段。这些结果提示:通过影响 IL—2的产生;降解已产生的 IL—2和减少淋巴细胞表面 IL—2受体的表达可能是 HSP 抑制淋巴细胞转化和增殖的原因之一。这一抑制作用防止了针对精子免疫反应的发生。张文浩 Deborah J Anderson 1992中国免疫学杂志1992,8,4:2
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