• 中国科技论文统计源期刊
  • 中国科技核心期刊
  • 中国高校优秀期刊
  • 安徽省优秀科技期刊
Volume 44 Issue 4
Apr.  2019
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Investigation of the influence of Helicobacter pylori infection on the levels of homocysteine and blood lipid

  • Corresponding author: JIN Qi-li, bbmc_nm@126.com
  • Received Date: 2018-11-01
    Accepted Date: 2019-01-30
  • ObjectiveTo explore the influence of Helicobacter pylori(HP) infection on the levels of homocysteine(Hcy) and blood lipid.MethodsOne hundred and two hospitalized patients were divided into the HP infection group and HP uninfection group according to the HP infection situation, respectively.The levels of Hcy, total cholesterol(TC), triglyceride(TG), high-density lipoprotein cholesterol(HDL-C) and low density lipoprotein cholesterol(LDL-C), were detected in two groups.The influence of HP infection on the levels of Hcy and blood lipid between two groups was compared, and the correlation between the level of Hcy and blood lipid was analyzed in two groups.ResultsThe detection rates of HHcy in HP infection group and HP uninfection group were 19.61%(10/51) and 5.88%(3/51), respectively, and the difference of which was statistically significant(P < 0.05).The abnormal detection rates of the levels of TC, HDL-C and LDL-C in HP infection group were higher than those in HP uninfection group(P < 0.05 to P < 0.01).The levels of TC and TG in HP infection group were higher compared with the HP uninfection group, and the difference of which was not statistically significant(P>0.05).The levels of Hcy and LDL-C in HP infection group were higher than those in HP uninfection group(P < 0.05).The level of HDL-C in HP infection group was lower than that in HP uninfection group(P < 0.05).HP antibody level was positively correlated with the levels of Hcy, TC and LDL-C(P < 0.05).ConclusionsHP infection is closely related to the occurrence of HHcy, and the abnormal level of blood lipid, can lead to the risk increasing of cardiovascular disease.
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  • [1] PRINZ C, SCHWENDY S, VOLAND P.Hpylori and gastric cancer; shifting the global burden[J].World J Gastroenterol, 2006, 12(34):5458. doi: 10.3748/wjg.v12.i34.5458
    [2] 段卉娣, 宋艳琴.老年冠心病病人冠状动脉狭窄及血脂代谢与幽门螺杆菌感染的相关性[J].西部医学, 2015, 27(3):363. doi: 10.3969/j.issn.1672-3511.2015.03.014
    [3] MCCULLY KS.Vascular pathology of homoeysterine implications for the pathogenesis of arteries-erosis[J].Am J Pathology, 1969, 56(2):111.
    [4] 周怡, 孟宪梅, 党彤, 等.幽门螺杆菌感染与糖尿病大动脉弹性PWV的相关性研究[J].中国医刊, 2011, 46(5):60. doi: 10.3969/j.issn.1008-1070.2011.05.018
    [5] 宋珏, 冉利梅, 刘玉屏, 等.幽门螺杆菌感染与血脂水平的关系研究[J].贵州医药, 2015, 39(11):973. doi: 10.3969/j.ISSN.1000-744X.2015.11.005
    [6] EUSEBI LH, ZAGARI RM, BAZZILI F.Epidemiology of helicobacter pylori infection[J].Helicobacter, 2014, 19(1):S1. doi: 10.1111/hel.2013.19.issue-1
    [7] 孙艺菡, 杨星林, 李峰, 等.幽门螺杆菌感染与糖尿病血管病变[J].国际内分泌代谢杂志, 2015, 35(1):38. doi: 10.3760/cma.j.issn.1673-4157.2015.01.009
    [8] 高仕霖, 张连峰, 时永全, 等.幽门螺杆菌感染相关胃外疾病研究进展[J].中华消化杂志, 2016, 36(1):65. doi: 10.3760/cma.j.issn.0254-1432.2016.01.023
    [9] 彭虹, 叶有强, 陶红梅, 等.幽门螺杆菌感染与脂肪肝关系的探讨[J].中华医院感染学杂志, 2013, 23(18):4409.
    [10] 刘学功, 赖人旭, 李振东, 等.幽门螺杆菌感染对病人血脂的影响[J].中华医院感染学杂志, 2014, 24(20):5084.
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Investigation of the influence of Helicobacter pylori infection on the levels of homocysteine and blood lipid

    Corresponding author: JIN Qi-li, bbmc_nm@126.com
  • Department of Clinical Laboratory, The Second Affiliated Hospital of Bengbu Medical College, Bengbu Anhui 233040, China

Abstract: ObjectiveTo explore the influence of Helicobacter pylori(HP) infection on the levels of homocysteine(Hcy) and blood lipid.MethodsOne hundred and two hospitalized patients were divided into the HP infection group and HP uninfection group according to the HP infection situation, respectively.The levels of Hcy, total cholesterol(TC), triglyceride(TG), high-density lipoprotein cholesterol(HDL-C) and low density lipoprotein cholesterol(LDL-C), were detected in two groups.The influence of HP infection on the levels of Hcy and blood lipid between two groups was compared, and the correlation between the level of Hcy and blood lipid was analyzed in two groups.ResultsThe detection rates of HHcy in HP infection group and HP uninfection group were 19.61%(10/51) and 5.88%(3/51), respectively, and the difference of which was statistically significant(P < 0.05).The abnormal detection rates of the levels of TC, HDL-C and LDL-C in HP infection group were higher than those in HP uninfection group(P < 0.05 to P < 0.01).The levels of TC and TG in HP infection group were higher compared with the HP uninfection group, and the difference of which was not statistically significant(P>0.05).The levels of Hcy and LDL-C in HP infection group were higher than those in HP uninfection group(P < 0.05).The level of HDL-C in HP infection group was lower than that in HP uninfection group(P < 0.05).HP antibody level was positively correlated with the levels of Hcy, TC and LDL-C(P < 0.05).ConclusionsHP infection is closely related to the occurrence of HHcy, and the abnormal level of blood lipid, can lead to the risk increasing of cardiovascular disease.

  • 幽门螺杆菌(Helicobacter pylori,HP)是一种革兰阴性杆菌,通常寄生于人体胃部,并与消化道溃疡、慢性胃炎、胃黏膜相关淋巴组织、淋巴瘤等胃部疾病密切相关[1]。有报道[2]称HP是一种致癌物,长期的感染而未能彻底根治可诱发胃癌。近年来通过对HP不断深入地研究,发现HP感染可能与多种胃肠系统外疾病的发生相关,如心脑血管疾病、肝胆疾病等。同型半胱氨酸(Hcy)是一种含硫氨基酸,自从MCCULLY等[3]首次报道,高同型半胱氨酸血症(HHcy)可能是引起动脉粥样硬化的危险因素之一,而且HP感染可能是导致HHcy的因素之一。同时有研究[4]发现, HP感染可通过对血脂代谢的影响而诱发冠心病(CHD),其中胆固醇尤其是高密度脂蛋白胆固醇(HDL-C)的降低和低密度脂蛋白胆固醇(LDL-C)的升高是CHD发生和进展的前提。本研究通过对HP感染者和HP未感染者的Hcy及血脂各项指标的测定和比较,探讨HP感染与Hcy及血脂的关系。现作报道。

1.   资料与方法
  • 选取2017年6月至2018年8月期间未行HP根除治疗的住院病人102例,根据血清中HP抗体水平的高低,将其分为HP感染组和HP未感染组。HP感染组51例中男31例,女20例,年龄23~90岁;HP未感染组51例中男30例,女21例,年龄45~96岁。2组一般资料均具有可比性。

  • 采用北京万泰德瑞诊断技术有限公司提供的HP抗体检测试剂盒进行HP抗体检测,仪器为HITACHI 7080型全自动生化分析仪,采用胶乳免疫比浊法,检测病人血清中HP抗体。判断标准:检测值≤15 AU/mL,HP抗体阴性;检测值>15 AU/mL,HP抗体阳性。

  • 使用由广州科方生物技术股份有限公司提供的Hcy测定试剂盒,仪器为贝克曼DxC 800型全自动生化分析仪,取病人空腹静脉血并按照试剂盒提供的检测方法进行检测。判断标准:检测值>15 μmol/L即为HHcy。

  • 使用由美康生物科技股份有限公司提供的试剂盒,仪器为贝克曼DxC 800型全自动生化分析仪测定,取病人空腹静脉血,根据试剂盒提供的检测方法测定血脂[总胆固醇(TC)、三酰甘油(TG)、HDL-C、LDL-C]水平。判断标准:TC>6.20 mmol/L为升高;TG>1.81 mmol/L为升高;HDL-C < 1.06 mmol/L为降低;LDL-C>3.10 mmol/L为升高。

  • 采用t检验、χ2检验和Pearson相关分析。

2.   结果
  • HP感染组HHcy检出率为19.61%(10/51),HP未感染组HHcy检出率为5.88%(3/51),2组间差异有统计学意义(P < 0.05);HP感染组的TC、HDL-C、LDL-C异常检测率均高于HP未感染组(P < 0.05~P < 0.01)(见表 1)。

    分组 n Hcy升高 TC升高 TG升高 HDL-C降低 LDL-C升高
    HP感染组 51 10(19.61) 8(15.69) 13(25.49) 23(45.10) 17(33.33)
    HP未感染组 51 3(5.88) 1(1.96) 15(29.41) 13(25.49) 5(9.80)
    χ2 4.32 5.97 0.18 4.29 8.35
    P <0.05 <0.05 >0.05 <0.05 <0.01
  • HP感染组病人血清TC、TG的水平均高于HP未感染组,但差异无统计学意义(P>0.05);HP感染组的Hcy和LDL-C水平均高于HP未感染组(P < 0.05);HP感染组的HDL-C水平低于HP未感染组(P < 0.05)(见表 2)。

    分组 n Hcy/(μmol/L) TC/(mmol/L) TG/(mmol/L) HDL-C/(mmol/L) LDL-C/(mmol/L)
    HP感染组 51 12.80±10.22 4.51±1.41 1.71±2.42 1.10±0.30 2.63±1.22
    HP未感染组 51 8.90±4.64 4.07±0.98 1.48±0.88 1.26±0.35 2.14±0.76
    t 2.47 1.82 0.65 -2.52 2.45
    P <0.05 >0.05 >0.05 <0.05 <0.05
  • HP水平与病人体内的Hcy、TC、LDL-C水平均呈正相关关系(r=0.248、0.243、0.272,P < 0.05)。

3.   讨论
  • HP感染是人类最常见的一种慢性感染,HP是寄生于胃黏膜表面上皮和黏膜层之间的一种导致胃部疾病发生的常见致病菌[5],属于革兰阴性需氧杆菌。HP感染具有传染性,可通过密切接触进行传播,能导致胃肠道疾病的发生和进展[6]。HP感染后需要根除治疗,否则会由于其难以自发清除而导致终身感染,所以需要加强对HP感染的预防和治疗,从而降低HP的感染率。

    Hcy是体内一碳单位代谢的一个正常中间产物,是蛋氨酸通过脱甲基产生的中间代谢产物,它在体内的代谢主要依赖B族维生素和多种酶参与,通过转硫通路,再甲基化过程进行代谢,若相关维生素缺乏,会导致Hcy的蓄积而形成HHcy[7]。HHcy是导致心血管疾病的危险因素,与心血管疾病的发生和发展密切相关,并且是导致骨质疏松性骨折的独立危险因素。研究[8]发现,长期HHcy可以损伤血管内皮细胞,激发血小板的黏附和凝集,促进低密度脂蛋白的氧化,从而导致动脉粥样硬化的形成。本研究也发现,HP感染组HHcy的检出率明显高于HP未感染组,并且HP感染组Hcy的水平也明显高于HP未感染组,应该加强对HP阳性病人Hcy水平的监测,才能对心脑血管疾病有很好的预警作用,从而降低心脑血管疾病和消化系统疾病带来的危害。

    血脂代谢异常是导致心脑血管疾病发生的一个独立危险因素,并且有研究[9]发现,HP感染在CHD的发生和发展进程中起着重要作用。HP感染后会定植于胃黏膜,通过释放大量的炎性细胞因子抑制肝脂蛋白酶的活性,从而降低HDL-C的水平,增加LDL-C的水平。由此可见,HP感染后是通过一系列炎症活动影响血脂的代谢。本研究中,我们发现HP感染组和HP未感染组TG的升高比例及水平比较无明显差异;HP感染组HDL-C的降低和TC、LDL-C的升高比例高于HP未感染组,同时,HP感染组TC和LDL-C的水平也高于HP未感染组,HDL-C的水平明显低于HP未感染组,说明HP感染会对血脂中HDL-C的降低以及TC、LDL-C的升高产生较大的影响。HDL-C的主要作用是将外周胆固醇转运至肝脏,而高水平的HDL-C有利于预防CHD的发生,当HDL-C的水平降低则会导致患心脑血管疾病的风险增加[10];TC、LDL-C在动脉粥样硬化的发生和发展中均起到重要的促进作用,特别是冠状动脉粥样硬化。如果LDL-C处于高水平状态,会损伤血管内皮细胞的功能,导致单核/巨噬系统和血管壁平滑肌细胞对LDL-C的摄取增多,从而形成动脉粥样硬化斑块。所以,应对HP阳性病人定期检测其血脂水平,纠正血脂代谢异常,降低心脑血管疾病发生的风险。

    综上所述,HP感染与HHcy的发生密切相关,同时也对血脂代谢产生影响,从而导致心脑血管疾病发生的风险增加。所以,加强对HP感染的检测和防治,同时对HP感染病人定期检测其Hcy和血脂水平,对因HP感染而导致HHcy和血脂代谢异常以及因其引起心脑血管疾病和消化系统疾病发生的防治有重要意义。

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