谷氨酰胺改善急性腹部损伤患者小肠黏膜屏障功能的机制研究
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包头医学院学报 2018年 10月第 34卷第 10期 JournalofBaotouMedicalCollege,Oct,2018,Vol.34,No.10
【临床医学】
谷氨酰胺改善急性腹部损伤患者小肠黏膜屏障功能的机制研究
邹向竞,杨新霞 (广州市花都区第二人民医院,广东 广州 510850)
[摘 要] 目的:探讨谷氨酰胺早期肠内营养对改善急性腹部损伤患者小肠黏膜屏障功能的作用机制。方法:随机选 取急性腹部损伤患者 45例,根据谷氨酰胺的剂量分为生理量组(0.3g/kg·d)20例,大剂量组(0.6g/kg·d)25例,连续 肠内营养 5d,检测肠粘膜屏障功能评价指标包括:尿中脂肪酸结合蛋白(IFABP)、血清肿瘤坏死因子 -a(TNF-a)、二 胺氧化酶(DAO)活性和免疫蛋白:IgG、IgM和分泌型免疫球蛋白 A(sIgA)水平。结果:生理量组尿 IFABP为(265.33± 25.94)ng/mL,而大剂量组为(113.66±14.26)ng/mL,组间比较差异有统计学意义(P <0.05);补充谷氨酰胺后,大剂量 组血清肿瘤坏死因子 -α(TNF-α)水平降低,而生理量组 TNF-a升高,两组比较差异有统计学意义(P <0.05),两组 二胺氧化酶(DAO)活性比较差异无统计学意义(P >0.05);大剂量组免疫调节功能改善,免疫球蛋白 IgG、IgM和 sIgA 均高于生理量组(P <0.05)。结论:急性腹部损伤患者早期给予谷氨酰胺肠内营养,可以通过减轻肠缺血、防止肠粘膜 萎缩、调节免疫功能和抑制肠内细菌移位而改善小肠黏膜屏障功能。 [关键词] 谷氨酰胺;急性腹部损伤;小肠黏膜屏障功能 DOI:10.16833/j.cnki.jbmc.2018.10.012
Mechanism ofglutamineonimprovingintestinalmucosalbarrierfunctioninpatientswng,YANG Xinxia (TheSecondPeople'sHospitalinHuaduDistrictofGuangzhou,Guangzhou510850,China) ABSTRACT Objective:Toinvestigatethemechanism ofearlyenteralnutritionofglutamineonimprovingintestinalmucosalbarrierfunctionin patientswithacuteabdominalinjury.Methods:45patientswithacuteabdominalinjurywererandomlyselected,anddividedintophysiologicaldose group(0.3g/kg.d,20cases)andlargedosegroup(0.6/kg.d,25cases)accordingtothedoseofglutamine.Thetwogroupshadcontinuousen teralnutritionfor5days,andintestinalmucosalbarrierfunctionofthemwasdetected.Urinaryfattyacidbindingprotein(IFABP),serumtumor necrosisfactor-a(TNF-a),diamineoxidase(DAO)activity,andlevelsofimmuneproteinIgGandIgM andsecretoryimmunoglobulinA(sI gA)wereincludedintheevaluationindexes.Results:TheurinaryIFABPofthephysiologicaldosegroupwas(265.33±25.94)ng/ml,andthat ofthelargedosegroupwas(113.66±14.26)ng/ml,andtheurinaryIFABPofthetwogroupshadsignificantdifference(P <0.05).Afterglu taminesupplementation,serumTNF-aofthelargedosegroupwassignificantlydecreased,whiletheserum TNF-aofthephysiologicaldose groupwasincreasedsignificantly,andtherewassignificantdifferencebetweenthetwogroups(P <0.05);DAOactivityofthetwogroupshadno statisticallysignificantdifference(P>0.05);Immunefunctionofthelargedosegroupwasimproved,andthelevelsofimmunoglobulinIgG,IgM andsIgAofthelargedosegroupweresignificantlyhigherthanthoseofthephysiologicaldosegroup(P <0.05).Conclusion:Earlyenteralgluta minesupplementationinacuteabdominalinjurycanimproveintestinalmucosalbarrierfunctionbyreducingintestinalischemia,preventingintesti nalmucosalatrophy,regulatingimmunefunctionandinhibitingbacterialtranslocationintheintestine. KEY WORDS Glutamine;Acuteabdominalinjury;Intestinalmucosalbarrierfunction
包头医学院学报 2018年 10月第 34卷第 10期 JournalofBaotouMedicalCollege,Oct,2018,Vol.34,No.10
【临床医学】
谷氨酰胺改善急性腹部损伤患者小肠黏膜屏障功能的机制研究
邹向竞,杨新霞 (广州市花都区第二人民医院,广东 广州 510850)
[摘 要] 目的:探讨谷氨酰胺早期肠内营养对改善急性腹部损伤患者小肠黏膜屏障功能的作用机制。方法:随机选 取急性腹部损伤患者 45例,根据谷氨酰胺的剂量分为生理量组(0.3g/kg·d)20例,大剂量组(0.6g/kg·d)25例,连续 肠内营养 5d,检测肠粘膜屏障功能评价指标包括:尿中脂肪酸结合蛋白(IFABP)、血清肿瘤坏死因子 -a(TNF-a)、二 胺氧化酶(DAO)活性和免疫蛋白:IgG、IgM和分泌型免疫球蛋白 A(sIgA)水平。结果:生理量组尿 IFABP为(265.33± 25.94)ng/mL,而大剂量组为(113.66±14.26)ng/mL,组间比较差异有统计学意义(P <0.05);补充谷氨酰胺后,大剂量 组血清肿瘤坏死因子 -α(TNF-α)水平降低,而生理量组 TNF-a升高,两组比较差异有统计学意义(P <0.05),两组 二胺氧化酶(DAO)活性比较差异无统计学意义(P >0.05);大剂量组免疫调节功能改善,免疫球蛋白 IgG、IgM和 sIgA 均高于生理量组(P <0.05)。结论:急性腹部损伤患者早期给予谷氨酰胺肠内营养,可以通过减轻肠缺血、防止肠粘膜 萎缩、调节免疫功能和抑制肠内细菌移位而改善小肠黏膜屏障功能。 [关键词] 谷氨酰胺;急性腹部损伤;小肠黏膜屏障功能 DOI:10.16833/j.cnki.jbmc.2018.10.012
Mechanism ofglutamineonimprovingintestinalmucosalbarrierfunctioninpatientswng,YANG Xinxia (TheSecondPeople'sHospitalinHuaduDistrictofGuangzhou,Guangzhou510850,China) ABSTRACT Objective:Toinvestigatethemechanism ofearlyenteralnutritionofglutamineonimprovingintestinalmucosalbarrierfunctionin patientswithacuteabdominalinjury.Methods:45patientswithacuteabdominalinjurywererandomlyselected,anddividedintophysiologicaldose group(0.3g/kg.d,20cases)andlargedosegroup(0.6/kg.d,25cases)accordingtothedoseofglutamine.Thetwogroupshadcontinuousen teralnutritionfor5days,andintestinalmucosalbarrierfunctionofthemwasdetected.Urinaryfattyacidbindingprotein(IFABP),serumtumor necrosisfactor-a(TNF-a),diamineoxidase(DAO)activity,andlevelsofimmuneproteinIgGandIgM andsecretoryimmunoglobulinA(sI gA)wereincludedintheevaluationindexes.Results:TheurinaryIFABPofthephysiologicaldosegroupwas(265.33±25.94)ng/ml,andthat ofthelargedosegroupwas(113.66±14.26)ng/ml,andtheurinaryIFABPofthetwogroupshadsignificantdifference(P <0.05).Afterglu taminesupplementation,serumTNF-aofthelargedosegroupwassignificantlydecreased,whiletheserum TNF-aofthephysiologicaldose groupwasincreasedsignificantly,andtherewassignificantdifferencebetweenthetwogroups(P <0.05);DAOactivityofthetwogroupshadno statisticallysignificantdifference(P>0.05);Immunefunctionofthelargedosegroupwasimproved,andthelevelsofimmunoglobulinIgG,IgM andsIgAofthelargedosegroupweresignificantlyhigherthanthoseofthephysiologicaldosegroup(P <0.05).Conclusion:Earlyenteralgluta minesupplementationinacuteabdominalinjurycanimproveintestinalmucosalbarrierfunctionbyreducingintestinalischemia,preventingintesti nalmucosalatrophy,regulatingimmunefunctionandinhibitingbacterialtranslocationintheintestine. KEY WORDS Glutamine;Acuteabdominalinjury;Intestinalmucosalbarrierfunction