幽门螺杆菌细胞毒素相关蛋白A与动脉粥样硬化性脑梗死的关系

目的探讨幽门螺杆菌(Hp)细胞毒素相关蛋白A(CagA)与动脉粥样硬化性脑梗死的关系。方法测定100例动脉粥样硬化性脑梗死患者(脑梗死组)的CagAHpIgG抗体、中性粒细胞、C反应蛋白(CRP)、血糖、血脂、血纤维蛋白原,应用颈部彩色多普勒超声仪进行颈部血管检测,并与50名健康对照者进行比较。对Hp抗体阳性脑梗死患者给予抗Hp治疗。结果脑梗死组CagAHp抗体阳性率为62%,健康对照组为38%,两组相比差异有显著性(P<0.05)。Hp抗体阳性者颈动脉斑块和狭窄的发生率分别为100%和61%,健康对照组分别为55%和18%,差异有显著性(P<0.05)。Hp抗体阳性组较阴性组血CRP及纤维蛋白原明显升高(均P<0.05)。抗Hp治疗可促进脑梗死的恢复。结论CagA阳性Hp菌株感染与动脉粥样硬化性脑梗死有关,且可能是脑梗死的独立危险因素。     

幽门螺杆菌感染与脑梗死的关系

目的 探讨幽门螺杆菌 (Hp)感染与脑梗死的关系.方法 用尿素14C呼气试验在150例脑梗死患者及150例对照者中检测Hp感染情况.同时检测两组人群的颈动脉粥样硬化斑块数目和性质、颈动脉内径、血脂及血黏度.结果 脑梗死者Hp阳性84例,阳性率56.0%;对照组Hp阳性38例,阳性率25.3%,两组差异有统计学意义(P<0.01).调整常见危险因素后,Hp感染仍增加脑梗死的危险性 (OR=3.295, 95%CI 1.603～6.774).脑梗死者的颈动脉粥样硬化斑块发生率为78.7% (118/150),对照组为32.0% (48/150);两组间显著有统计学差异 (P<0.01).脑梗死者在颈动脉内膜-中层厚度 (IMT)、内径、血脂水平(总胆固醇、三酰甘油)及血黏度方面均与对照组存在显著差异 (P均<0.01).结论 脑梗死患者有高发的Hp感染,其致病机理可能是影响了动脉粥样硬化的发生.     

脑梗死患者颈动脉斑块与血白细胞、血脂、纤维蛋白原水平的关系

目的研究脑梗死患者颈动脉粥样硬化斑块与血白细胞(WBC)、血脂及纤维蛋白原(Fib)水平的关系。方法对38例脑梗死患者行颈动脉MRI检查,以发现动脉粥样硬化斑块并确定性质;检测脑梗死患者和31名健康体检者(正常对照组,彩色多普勒超声检查排除颈动脉斑块)的WBC、血脂水平[包括总胆固醇、三酰甘油、高密度脂蛋白、低密度脂蛋白(LDL)、载脂蛋白(a)]和Fib水平。结果26例(68.4%)脑梗死患者有颈动脉斑块,12例(31.6%)无斑块;其中不稳定斑块20例(52.6%),稳定斑块6例(15.8%)。脑梗死组(无斑块组、稳定斑块组和不稳定斑块组)的血Fib水平均明显高于正常对照组(均P<0.01);不稳定斑块组的血WBC和LDL水平显著高于正常对照组(均P<0.05),其他各项的差异均无统计学意义。结论血WBC和LDL水平可能与颈动脉不稳定斑块并发的脑梗死有关;血浆高Fib水平可促进脑梗死的发生。     

脑梗死患者颈动脉粥样硬化斑块的相关危险因素分析

目的探讨脑梗死患者的颈动脉粥样硬化发生情况及其主要危险因素。方法对170例脑梗死患者应用彩超进行颈动脉检查,观察动脉粥样硬化的发生情况和记录相关危险因素的资料,同时实验室检测血脂、血糖、纤维蛋白原水平。结果脑梗死患者有颈动脉粥样硬化斑块者131例(77.1%),颈动脉狭窄11例(6.5%)。经Logistic回归分析发现,年龄(OR 1.352,95%CI:1.087~1.569)、吸烟(OR 1.854,95%CI:1.362~2.258)及糖尿病(OR 2.774,95%CI:1.612~5.956)可能是导致斑块发生的独立危险因素。颈动脉有斑块组其总胆固醇、低密度脂蛋白、血糖及纤维蛋白原水平较无斑块组显著增高(P<0.01)。结论年龄、吸烟和糖尿病是发生脑梗死颈动脉粥样硬化斑块的独立危险因素,应对存在多种危险因素的患者进行积极干预。     

急性缺血性脑血管病患者血清ox-LDL及PAPP-A水平与颈动脉粥样硬化的相关性研究

目的探讨急性缺血性脑血管病患者颈动脉粥样硬化与血清氧化型低密度脂蛋白(ox-LDL)、妊娠相关血浆蛋白A(PAPP-A)水平的关系。方法随机选取急性脑梗死患者90例和短暂性脑缺血发作(TIA)患者60例作为研究对象,随机选取健康体检者30例作为对照组。入选者均检测血清ox-LDL、PAPP-A水平。对急性脑梗死和TIA患者进行颈动脉超声检查,发现颈动脉内-中膜厚度(IMT)正常者22例,IMT增厚者47例,颈动脉斑块形成者81例,其中稳定斑块者49例,不稳定斑块者32例。比较各组血清ox-LDL及PAPP-A水平。结果急性脑梗死组血清PAPP-A及ox-LDL水平显著高于TIA组(P<0.01),后者显著高于正常对照组(P<0.01);在缺血性脑血管病患者中,颈动脉粥样硬化斑块形成者血清PAPP-A及ox-LDL水平较颈动脉IMT增厚组明显升高(P<0.01),后者高于IMT正常组(P<0.01);在颈动脉斑块形成者中,其血清PAPP-A及ox-LDL水平在不稳定斑块组高于稳定斑块组(P<0.01)。Spearman分析显示,血清PAPP-A与ox-LDL水平之间存在明显相关性(r=0.839,P<0.05);logistic回归分析显示,血清PAPP-A与ox-LDL水平是发生颈动脉粥样硬化的危险因素(OR=2.549,95%CI1.12~3.79;OR=1.317,95%CI1.15~2.11)。结论急性缺血性脑血管病患者颈动脉粥样硬化的发生和进展与ox-LDL、PAPP-A水平相关,血清ox-LDL及PAPP-A水平可在一定程度上反映急性缺血性脑血管病患者颈动脉粥样硬化的程度。两者在颈动脉甚至颅内动脉粥样硬化的形成过程中产生协同作用。     

亲环素A及脑梗死相关血液指标与颈动脉粥样硬化斑块形成和稳定性及脑梗死的相关性研究

目的探究亲环素A(Cyclophilin A,CyPA)及脑梗死相关血液指标与颈动脉粥样硬化斑块形成和稳定性之间的关系,从而探究其与脑梗死的相关性。方法收集河北医科大学第二医院神经内科2017年12月～2018年12月就诊的患者脑梗死组56例,斑块组(无梗死,仅有斑块)患者72例,无斑块组40例;各组中斑块的稳定程度用斑块评分来表示,斑块评分越高斑块越不稳定;应用酶联免疫吸附测定法(Enzyme-linked immune sorbent assay,ELISA)测定CyPA含量,并收集一些常见血液指标数据;应用颈动脉超声检测颈动脉斑块并根据超声中颈动脉斑块的形态确定斑块评分。结果无斑块组和斑块组CyPA水平差异有统计学意义(P<0.05),CyPA是颈动脉斑块形成的危险因素(OR=1.002,95%CI 0.824～1.219);脑梗死组和斑块组中CyPA水平与颈动脉斑块评分(颈动脉斑块稳定性)之间无相关性(P>0.05);斑块组与脑梗死组的斑块评分差异有统计学意义(P<0.05)。脑梗死组中纤维蛋白原、糖化血红蛋白与斑块评分呈正相关,血红蛋白与斑块评分之间呈负相关,且有统计学意义(P<0.05)。经Logistics回归后,纤维蛋白原是动脉粥样硬化斑块发展的独立危险因素(OR=8.988,95%CI 3.017～3.422)。血红蛋白是动脉粥样硬化斑块发展的保护因素(OR=0.936,95%CI 134.031～144.583);斑块组,中高密度脂蛋白与斑块评分呈负相关,差异有统计学意义。经Logistic回归分析后,高密度脂蛋白是动脉粥样硬化斑块发展的保护因素(OR=0.052,95%CI 1.237～1.364)。结论血清中CyPA水平是颈动脉粥样硬化斑块形成的危险因素,但与斑块的稳定性不相关;脑梗死患者中的斑块不稳定程度较非脑梗死患者斑块不稳定程度明显增加;对于急性脑梗死的患者纤维蛋白原、糖化血红蛋白都与颈动脉斑块的稳定程度呈负相关,血红蛋白含量与斑块稳定性呈正相关,其中纤维蛋白原是动脉粥样硬化斑块发展的独立危险因素,血红蛋白是动脉粥样硬化斑块发展的保护因素;在非脑梗死患者中,高密度脂蛋白与斑块的稳定程度呈正相关且是斑块发展的保护因素。     

红细胞分布宽度和脑梗死患者颈动脉粥样硬化斑块稳定性的关系

目的探讨红细胞分布宽度(red blood cell distribution width,RDW)水平和脑梗死患者颈动脉粥样硬化斑块稳定性的关系。方法根据颈动脉彩色多普勒超声仪检查结果,将147例脑梗死患者分为稳定斑块组56例,不稳定斑块组91例,以及51例正常对照组。收集一般临床资料及缺血性脑血管病危险因素,测定血脂、糖化血红蛋白、血红蛋白、RDW、高敏C反应蛋白(high sensitivity C-reactive protein,hs-CRP)、血浆纤维蛋白原(fibrinogen,Fib)等并进行组间比较。结果 (1)与对照组相比,脑梗死组RDW、TC、LDL-C、hs-CRP明显增高,差异有统计学意义(P<0.05)。(2)稳定斑块组、不稳定斑块组与对照组相比RDW含量明显升高,差异具有统计学意义(P<0.05);不稳定斑块组RDW水平明显高于稳定斑块组,具有显著性差异(P<0.05)。(3)调整性别、年龄因素后,RDW为颈动脉不稳定斑块的危险因素(OR=1.649,95%CI 0.997~2.727,P<0.05)。结论 RDW水平的增高和颈动脉粥样硬化斑块的不稳定性密切相关。     

脑梗死与血脂水平和颈动脉粥样硬化斑块的相关性及彩色多普勒超声的价值分析

目的分析脑梗死的发生与血脂、颈动脉粥样硬化斑块间的相关性。方法选取我院2014-06—12门诊收治的100例脑梗死患者为研究组,其中动脉粥样硬化斑块者76例,动脉粥样硬化未出现斑块者24例;另选取门诊同期健康体检者100例作为对照组。对2组动脉粥样硬化斑块和血脂水平进行检测。结果 2组TC、TG、LDL-C、HDL-C及Lp(a)水平比较,差异均有统计学意义(t=8.2211、21.5728、10.3020、8.4853、17.8318,P0.05);研究组中颈动脉硬化斑块与无斑块者在TC、TG、LDL-C、HDL-C及Lp(a)水平方面比较,差异均有统计学意义(t=2.4074、6.1549、4.7956、2.6626、37.8886,P0.05)。结论脑梗死与颈动脉硬化斑块关系密切,而血脂相关指标的升高是导致脑梗死和动脉硬化斑块的重要因素。临床应选择有效检测手段,及时采取治疗措施。     

血清CagA Hp-IgG与青年脑梗死的相关性分析

目的探讨血清CagA Hp-IgG含量与青年脑梗死的相关性。方法选取我院青年脑梗死患者56例作为实验组,健康体检者50例作为对照组,空腹检测2组患者的血清CagA Hp-IgG含量及实验组的血白细胞、hs-CRP、血纤维蛋白原含量。结果实验组血清CagA Hp-IgG阳性率62.5%(35/56),对照组阳性率28%(14/50),实验组血清CagA Hp-IgG含量明显高于对照组(P<0.05);实验组血清CagA Hp-IgG阳性患者hs-CRP、血纤维蛋白原含量明显高于血清CagA Hp-IgG阴性患者(P<0.01,P<0.05),而血白细胞2组比较差异无统计学意义(P>0.05)。结论血清CagA Hp-IgG含量与青年脑梗死密切相关,是其发病的一个重要危险因素,可能是通过提高hs-CRP、血纤维蛋白原含量等机制实现,值得进一步研究。     

脑梗死与颈动脉粥样斑块及相关生化指标的关系

目的评价脑梗死与颈动脉粥样斑块及其相关生化指标的关系。方法对53例脑梗死患者进行颈动脉彩色超声检查,并取同期住院患者中无脑梗死者53例作为对照组,同时监测两组患者入院24 h内空腹血浆总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白(HDL)、低密度脂蛋白(LDL)、血糖(FBG)及纤维蛋白原(Fib)的含量。结果脑梗死患者颈动脉粥样斑块发生率明显高于对照组,差别有显著性意义(P＜0．05);颈动脉粥样斑块阳性患者与颈动脉粥样斑块阴性患者的TC、TG、Fib及FBG的含量间差别均有显著性意义(P＜0．05)。结论脑梗死的发病与颈动脉粥样斑块的形成密切相关,有效控制血脂、Fib及FBG水平可降低颈动脉粥样斑块发生率;早期干预高血脂、高血糖、颈动脉斑块等对降低脑梗死发病率具有重要临床意义。     

幽门螺杆菌细胞毒素相关蛋白A与脑梗死发生的关系

目的 :探讨幽门螺杆菌 (HP)及幽门螺杆菌细胞毒素相关蛋白 A(Cag A)与脑梗死发生的关系。方法 :用酶联免疫法 (EL ISA)和斑点金渗滤试验 (DIGFA)对 83例连续住院的脑梗死患者血清中幽门螺杆菌 Ig G抗体 (HP- Ig G)和幽门螺杆菌细胞毒素相关蛋白 AIg G抗体 (HP- Cag- Ig G)进行测定并设对照组比较。结果 :脑梗死组幽门螺杆菌感染率为 78.3% ,幽门螺杆菌细胞毒素相关蛋白 A阳性 HP感染率为 45 .8% ,而对照组分别为 5 6 .3%和 19.7% ,两组比较有显著差别。结论 :慢性 HP感染尤其是 Cag A阳性 HP菌株感染与脑梗死的发生有关 ,而且可能是脑梗死的独立危险因素。     

Relationship between Helicobacterpylori bearing the cytotoxin associated gene-A and cerebral infarction

Objective To explore the relationship between virulent Helicobacter pylori strains infection and cerebral infarction. Method We assessed the prevalence of infection by strains bearing the cytotoxin -associated gene-A(Cag-A),a strong virulence factor ,in 83 patients with cerebral infarction and in 71 age- and sex-matched controls with similar social background. Result Prevalence of Helicobacter pylori infection was significantly higher in patients than in controls(78.3% versus 56.3%,p＜0.05),with an odds ratio of 2.8(95%CI,1.46 to 5.36) adjusted for age, sex, main stroke factors. Patients with cerebral infarction also had a higher prevalence of Cag-A-positive strains(45.8% versus 19.7%, P＜0.01),with an adjusted odds ratio of 3.43(95%CI 1.5 to 7.24).Conclusion It was suggested that chronic Helicobacter pylori infection, especially Cag-A-positive strains infection is an independent risk factor for cerebral infarction.     

A study on levels of neuropeptide Y, neurotensin motilin and calcitonin gene-reliated peptide in plasma in patients with cerebral infarction and dinical isignificance

Objective To explore the relationship between virulent Helicobacter pylori strains infection and cerebral infarction. Method We assessed the prevalence of infection by strains bearing the cytotoxin -associated gene-A(Cag-A),a strong virulence factor ,in 83 patients with cerebral infarction and in 71 age- and sex-matched controls with similar social background. Result Prevalence of Helicobacter pylori infection was significantly higher in patients than in controls(78.3% versus 56.3%,p＜0.05),with an odds ratio of 2.8(95%CI,1.46 to 5.36) adjusted for age, sex, main stroke factors. Patients with cerebral infarction also had a higher prevalence of Cag-A-positive strains(45.8% versus 19.7%, P＜0.01),with an adjusted odds ratio of 3.43(95%CI 1.5 to 7.24).Conclusion It was suggested that chronic Helicobacter pylori infection, especially Cag-A-positive strains infection is an independent risk factor for cerebral infarction.     

细胞毒素相关蛋白A与缺血性脑卒中及亚型相关性研究

目的 探讨伴细胞毒素相关蛋白A(CagA)阳性幽门螺杆菌(Hp)感染是否为缺血性脑卒中(IS)及其亚型的危险因索.方法 纳入123例IS患者,根据2007年改良的TOAST分型标准对卒中进行病因学分型,其中动脉粥样硬化血栓形成94例、心源性栓塞14例、小动脉卒中12例,同期纳入同社区年龄匹配的131例无心脑血管病的受试者作为对照组.所有纳入对象均记录CagA感染的潜在危险因素及IS相关危险因素.采用酶联免疫吸附法测定血清CagA特异性抗体IgG(CagA-IgG).比较两组血清CagA-IgG阳性率,分析CagA阳性Hp感染与IS的相关性.采用Logistic回归模型进行多因素分析.结果 病例组CasA-IgG阳性率高于对照组,但差异无统计学意义(39.8%VS 38.9%,OR=1.039,95%CI:0.628～1.719),校正CagA阳性Hp感染的潜在危险因素及IS相关危险因素后,两者间差异仍无统计学意义(OR=1.062,95%CI:0.595-1.895).进一步行亚型分析,校正相关危险因素后结果示CaA阳性Hp感染与各亚型之间相关性亦无统计学意义:其中动脉粥样硬化血栓形成OR=0.941,95%CI:0.491-1.803;心源性栓塞OR=1.357,95%CI:0.389-4.741;小动脉卒中OR=2.391,95%CI:0.580-9.853.结论 CagA阳性Hp感染与IS及其亚型无明显相关性,需更多大样本及高质量的前瞻性研究以进一步探讨.     

幽门螺杆菌感染与动脉粥样硬化相关炎症及免疫反应

幽门螺杆菌感染在人群中广泛存在,近年来幽门螺杆菌感染与动脉粥样硬化性疾病的相关性研究受到了越来越多的关注。炎症反应是动脉粥样硬化的基础,幽门螺杆菌感染引起的炎症和免疫反应可使体内多种与动脉粥样硬化相关的因子产生变化,从而可能促进动脉粥样硬化的发生和进展。本文就幽门螺杆菌感染与动脉粥样硬化相关的因子做一综述,为动脉粥样硬化性疾病的防治提供参考。     

2003/细胞毒素相关蛋白A与缺血性卒中及其亚型的Meta分析

目的 既往研究表明,CagA(Cytotoxin-associated gene-A)阳性菌株感染与心脑血管疾病的发生、发展相关。而其与缺血性卒中(Ischemic Stroke,IS)及其亚型的相关性各研究间仍存在争议。在此背景下,本研究对CagA阳性菌株感染与IS及其亚型相关文献进行Meta分析,旨在探讨CagA阳性菌株感染是否为IS及其亚型的危险因素。方法 检索MEDLINE、EMBASE、Cochrance Collaboration database电子数据库、中国期刊全文数据库及维普中文科技期刊全文数据库,检索时限为1997年1月～2010年7月。纳入相关的病例-对照研究,由两名评价者分别检索文献并对文献的质量进行评价,经严格筛选后,采用Cochrane协作网提供的RevMan5.0软件对纳入文献进行Meta分析,并进一步进行异质性检验、敏感性分析及偏倚评估。结果 共纳入9篇文献,其中CagA阳性菌株感染与IS相关文献8篇(病例组879例,对照组849例),与大动脉硬化性脑卒中(Large-artery atherosclerosis,LAA)相关文献5篇(病例组461例,对照组497例)。Meta分析结果提示,IS组与对照组CagA阳性菌株感染率存在显著性差异(OR=2.31,95%CI 1.89-2.82,P<0.01)。CagA阳性菌株与LAA亚型的Meta分析结果显示,CagA阳性菌株与LAA显著相关(OR=2.87,95%CI 2.19-3.77,P<0.01)。对病例-对照研究中混杂因素进一步校正后再次合并OR值总效应值,结果显示,IS组与对照组CagA阳性菌株感染率仍存在显著差异(OR=2.36,95%CI 1.84-3.02,P<0.01),且CagA阳性菌株与LAA关系仍显著相关(OR=3.10,95%CI 2.29-4.19, P<0.01)。进一步行异质性检验提示CagA阳性菌株与IS及其亚型的研究间均不存在异质性(I2=0%,I2=0%),故采用固定效应模型进行合并分析。敏感性分析示结果均稳定。漏斗图示均存在发表偏倚,缺少小样本的阴性结果文献。结论 (1) CagA阳性菌株是IS的危险因素,且与LAA的相关性更显著;(2) 病例-对照研究Meta分析提示,CagA阳性菌株是IS的危险因素,但论证强度较低,仍需更多大样本及前瞻性研究以进一步证实CagA阳性菌株在IS及其亚型发病中的作用。     

补体因子H Y402H基因多态性与动脉粥样硬化性脑梗死的关系

目的探讨补体因子H Y402H基因多态性与动脉粥样硬化性脑梗死发病的关系及其对颈总动脉内膜-中膜厚度的影响。方法选择190例动脉粥样硬化性脑梗死患者,应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法检测补体因子H Y402H基因多态性,彩色多普勒超声技术检测颈总动脉内膜-中膜厚度,并与200名健康对照比较。结果在脑梗死组中CC基因型和TC基因型颈总动脉内膜-中膜厚度明显高于TT基因型,而各基因型频率与健康对照组比较差异无统计学意义。结论补体因子H Y402H基因多态性可能不是动脉粥样硬化性脑梗死的遗传易感因素,但可能与动脉粥样硬化有关。     

Helicobacter pylori infection contributes to high risk of ischemic stroke: evidence from a meta-analysis

Chronic infection of Helicobacter pylori (H. pylori) in ischemic stroke (IS) incidence has been previously studied in several publications; however, conflicting results have been reported. A meta-analysis was used to assess whether chronic infection of H. pylori was associated with risk of IS, and which of the following was more effective for predication of IS risk, antibody IgG of H. pylori (anti-H. pylori IgG), antibody IgG of cytotoxin-associated gene-A (anti-Cag A IgG) or the ¹³C-urea breath test. We searched the databases of Medline and Embase, and latest update was January 1, 2012. Case?Ccontrol studies were considered to be eligible. The odds ratio (OR) and 95?% confidence interval (95?% CI) were calculated using the random-effect model. A total of 13 studies including 4,041 participants were included in this meta-analysis. Of these studies, ten, four and four studies were for anti-H. pylori IgG, anti-Cag A IgG and the ¹³C-urea breath test, respectively. Combined analysis indicated that positive anti-H. pylori IgG, anti-Cag A IgG and ¹³C-urea breath test were significantly associated with increased risk of IS, respectively, and positive anti-Cag A IgG was more effective for predication of IS risk [OR (95?% CI)?=?1.60 (1.21?C2.11), P _{heterogeneity}?=?0.001 for positive versus negative anti-H. pylori IgG; 2.33 (1.76?C3.09), P _{heterogeneity}?=?0.71 for positive versus negative anti-Cag A IgG and 1.65 (1.11?C2.47), P _{heterogeneity}?=?0.17 for positive versus negative ¹³C-urea breath test]. In addition, we found that positive anti-H. pylori IgG was closely associated with risk of IS caused by atherosclerosis and small artery disease, but not for cardioembolic IS. This meta-analysis indicated that chronic H. pylori infection was significantly associated with an increased risk of IS, especially for non-cardioembolic IS. Compared with anti-H. pylori IgG and the ¹³C-urea breath test, anti-Cag A IgG seemed more effective for prediction of risk of IS.     

Helicobacter pylori infection and gastric emptying of solids in humans

Helicobacter pylori has been implicated in a number of upper gastrointestinal illnesses. In a controlled study, we have investigated the relationship between H. pylori infection and gastric emptying of solids in two groups of patients with chronic symptoms of dyspepsia. In the first group, 19 patients with non-ulcer dyspepsia and H. pylori infection underwent a standard test of gastric emptying after ingestion of 500 μCi of Tc-labelled chicken liver. The results were compared to a control group of 16 uninfected volunteers. We also studied a second group of 20 patients with previously diagnosed idiopathic gastroparesis for the prevalence of H. pylori infection and its relationship to symptom severity and rates of gastric emptying. In the first group of patients, the half-time of gastric emptying was significantly less among the infected patients compared to the uninfected volunteers (108 ± 9 vs. 142 ± 14 min, P < 0.05). In the second group of patients with gastroparesis, the prevalence of H. pylori was not significantly different among these patients than among 21 age and sex matched controls (20% vs. 38%, P = 0.32). Gastric emptying was markedly slow in all 20 patients in the second group but less so among the four with H. pylori infection. Symptom scores were no different between infected and uninfected patients. We conclude that H. pylori infection is not associated with abnormally slow gastric emptying. On the contrary, gastric H. pylori infection appears to be associated with mildly accelerated emptying of solids compared to normal controls. Idiopathic gastroparesis and dyspepsia related H. pylori infection are separate but sometimes overlapping disorders.