郑州大学学报(医学版)
鄭州大學學報(醫學版)
정주대학학보(의학판)
JOURNAL OF ZHENGZHOU UNIVERSITY(MEDICAL SCIENCES)
2014年
2期
153-156,157
,共5页
王玉玉%张军%郑鹏远%李付广%刘志强%陈东晖
王玉玉%張軍%鄭鵬遠%李付廣%劉誌彊%陳東暉
왕옥옥%장군%정붕원%리부엄%류지강%진동휘
双歧杆菌%酪酸梭菌%谷氨酰胺%肠黏膜屏障%小鼠%慢性应激
雙歧桿菌%酪痠梭菌%穀氨酰胺%腸黏膜屏障%小鼠%慢性應激
쌍기간균%락산사균%곡안선알%장점막병장%소서%만성응격
Bifdobacterium infantis%Clostridium butyricum%glutamine%intestinal barrier%mouse%chronic psychological stress
目的:探讨双歧杆菌、酪酸梭菌和谷氨酰胺对慢性应激模型小鼠肠黏膜屏障的影响。方法:60只Balb/c小鼠随机分为正常对照组、模型对照组、双歧杆菌干预组、酪酸梭菌干预组、谷氨酰胺干预组、联合干预组6组。采用避水实验构建小鼠应激模型。 ELISA法测定小鼠血清 D-乳酸、二胺氧化酶( DAO)含量,评价小鼠肠道通透性;RT-PCR和Western blot 法测定小肠、结肠组织中ZO1-、Occludin mRNA和蛋白的表达。结果:模型对照组小鼠血浆D-乳酸和DAO含量明显高于正常对照组小鼠;双歧杆菌、酪酸梭菌、谷氨酰胺及联合干预后,小鼠血清D-乳酸和DAO含量较模型对照组明显下降,且联合干预组下降最明显( F=5.950,13.214,P<0.001)。模型对照组小鼠小肠、结肠组织中ZO-1、Occludin mRNA和蛋白表达量较正常对照组显著降低;各干预组小肠、结肠组织中的ZO-1、Occludin mR-NA和蛋白表达均较模型对照组显著升高,联合干预组的表达量最高(小肠:F=741.007,511.112,291.083,607.764, P<0.001;结肠:F=527.769,411.688,1244.748,583.786,P<0.001)。结论:在慢性应激条件下,小鼠肠道功能紊乱、通透性增高,双歧杆菌联合谷氨酰胺可以有效缓解上述症状。
目的:探討雙歧桿菌、酪痠梭菌和穀氨酰胺對慢性應激模型小鼠腸黏膜屏障的影響。方法:60隻Balb/c小鼠隨機分為正常對照組、模型對照組、雙歧桿菌榦預組、酪痠梭菌榦預組、穀氨酰胺榦預組、聯閤榦預組6組。採用避水實驗構建小鼠應激模型。 ELISA法測定小鼠血清 D-乳痠、二胺氧化酶( DAO)含量,評價小鼠腸道通透性;RT-PCR和Western blot 法測定小腸、結腸組織中ZO1-、Occludin mRNA和蛋白的錶達。結果:模型對照組小鼠血漿D-乳痠和DAO含量明顯高于正常對照組小鼠;雙歧桿菌、酪痠梭菌、穀氨酰胺及聯閤榦預後,小鼠血清D-乳痠和DAO含量較模型對照組明顯下降,且聯閤榦預組下降最明顯( F=5.950,13.214,P<0.001)。模型對照組小鼠小腸、結腸組織中ZO-1、Occludin mRNA和蛋白錶達量較正常對照組顯著降低;各榦預組小腸、結腸組織中的ZO-1、Occludin mR-NA和蛋白錶達均較模型對照組顯著升高,聯閤榦預組的錶達量最高(小腸:F=741.007,511.112,291.083,607.764, P<0.001;結腸:F=527.769,411.688,1244.748,583.786,P<0.001)。結論:在慢性應激條件下,小鼠腸道功能紊亂、通透性增高,雙歧桿菌聯閤穀氨酰胺可以有效緩解上述癥狀。
목적:탐토쌍기간균、락산사균화곡안선알대만성응격모형소서장점막병장적영향。방법:60지Balb/c소서수궤분위정상대조조、모형대조조、쌍기간균간예조、락산사균간예조、곡안선알간예조、연합간예조6조。채용피수실험구건소서응격모형。 ELISA법측정소서혈청 D-유산、이알양화매( DAO)함량,평개소서장도통투성;RT-PCR화Western blot 법측정소장、결장조직중ZO1-、Occludin mRNA화단백적표체。결과:모형대조조소서혈장D-유산화DAO함량명현고우정상대조조소서;쌍기간균、락산사균、곡안선알급연합간예후,소서혈청D-유산화DAO함량교모형대조조명현하강,차연합간예조하강최명현( F=5.950,13.214,P<0.001)。모형대조조소서소장、결장조직중ZO-1、Occludin mRNA화단백표체량교정상대조조현저강저;각간예조소장、결장조직중적ZO-1、Occludin mR-NA화단백표체균교모형대조조현저승고,연합간예조적표체량최고(소장:F=741.007,511.112,291.083,607.764, P<0.001;결장:F=527.769,411.688,1244.748,583.786,P<0.001)。결론:재만성응격조건하,소서장도공능문란、통투성증고,쌍기간균연합곡안선알가이유효완해상술증상。
Aim:To determine the influence of chronic psychological stress on intestinal barrier and to investigate the contents of D-lactic and DAO increased significantly in the stress group , while those in Bifdobacterium infantis group, Clos-tridium butyricum group, glutamine group and combination group significantly reduced compared with the stress group espe -cially the combination group(F=5.950,13.214,P<0.001).The expression levels of ZO-1 and Occludin mRNA and pro-tein in the stress group were lower than that in the normal group in small intestine and colon ,which were increased signifi-cantly,in the other intervention groups especially the combination group had the highest expression ( small intestine:F=741.007,511.112,291.083, 6077.64, P<0.001;colon:F=527.769,411.6881, 244.748,583.786,P<0.001).Con-clusion:The disturbance of intestinal function occurs , and intestinal permeability increases in mice suffered from chronic psychological stress .Bifdobacterium infantis, Clostridium butyricum and glutamine could alleviate the disturbance .