青春双歧杆菌和嗜酸乳酸杆菌对急性期和恢复期结肠炎小鼠Th1/Th2亚群的影响

Objective To observe and analyze the effect of B. Adolescentis and L. Acidophilus on the proportion of Th cell Th1/Th2 in peripheral blood of UC-mice in acute stage and recovery stage. Method 40 BABL/c mice were induced by 3% DSS water for 7 clays free drinking and then with distilled water for 10 days. They were randomly allocated in 4 groups: NS group, SASP group, BF0624 group and LT0637 group, also the fifth group-10 normal animals. The blood of mice were collected by removing their eyes at day 8 and day 18, and then the mononuclear cells were iso]atecl. The proportion of Th1/Th2 was analyze through flow eytometry,hy labeling the specific antibody ot Th cellular membrane with the CD4 antibody, and the cytoplastie antigen of Thl or Th2 with IIA antibody or IF'N-γ antibody. Result The proportion of Th1/Th2 in normal mouse was 0. 84 -0. 94,and it raised up in DSS-mice at both acute stage and recovery stage. It decreased unequally after 7 or 17 days'B, adoleseentis, L. Acidophilus and SASP treatment, but that of all three groups were lower than NS group (2.21±0. 83). Even the proportion got close to the normal animals after 17 days'L. Acidophilus -treated. Conclusion The proportion of Thl/Th2 increased at the acute stage and recovery stage of DSS-mice. Both B. Adoleseentis and L. Acidophilus had more effective than SASP on decreasing the proportion of Th1/Th2 at two stages,ospecially L. Acidophilus.     

青春双歧杆菌和嗜酸乳酸杆菌对急性期和恢复期结肠炎小鼠Th1/Th2亚群的影响

Objective To observe and analyze the effect of B. Adolescentis and L. Acidophilus on the proportion of Th cell Th1/Th2 in peripheral blood of UC-mice in acute stage and recovery stage. Method 40 BABL/c mice were induced by 3% DSS water for 7 clays free drinking and then with distilled water for 10 days. They were randomly allocated in 4 groups: NS group, SASP group, BF0624 group and LT0637 group, also the fifth group-10 normal animals. The blood of mice were collected by removing their eyes at day 8 and day 18, and then the mononuclear cells were iso]atecl. The proportion of Th1/Th2 was analyze through flow eytometry,hy labeling the specific antibody ot Th cellular membrane with the CD4 antibody, and the cytoplastie antigen of Thl or Th2 with IIA antibody or IF'N-γ antibody. Result The proportion of Th1/Th2 in normal mouse was 0. 84 -0. 94,and it raised up in DSS-mice at both acute stage and recovery stage. It decreased unequally after 7 or 17 days'B, adoleseentis, L. Acidophilus and SASP treatment, but that of all three groups were lower than NS group (2.21±0. 83). Even the proportion got close to the normal animals after 17 days'L. Acidophilus -treated. Conclusion The proportion of Thl/Th2 increased at the acute stage and recovery stage of DSS-mice. Both B. Adoleseentis and L. Acidophilus had more effective than SASP on decreasing the proportion of Th1/Th2 at two stages,ospecially L. Acidophilus.     

青春双歧杆菌和嗜酸乳酸杆菌对急性期和恢复期结肠炎小鼠Th1/Th2亚群的影响

Objective To observe and analyze the effect of B. Adolescentis and L. Acidophilus on the proportion of Th cell Th1/Th2 in peripheral blood of UC-mice in acute stage and recovery stage. Method 40 BABL/c mice were induced by 3% DSS water for 7 clays free drinking and then with distilled water for 10 days. They were randomly allocated in 4 groups: NS group, SASP group, BF0624 group and LT0637 group, also the fifth group-10 normal animals. The blood of mice were collected by removing their eyes at day 8 and day 18, and then the mononuclear cells were iso]atecl. The proportion of Th1/Th2 was analyze through flow eytometry,hy labeling the specific antibody ot Th cellular membrane with the CD4 antibody, and the cytoplastie antigen of Thl or Th2 with IIA antibody or IF'N-γ antibody. Result The proportion of Th1/Th2 in normal mouse was 0. 84 -0. 94,and it raised up in DSS-mice at both acute stage and recovery stage. It decreased unequally after 7 or 17 days'B, adoleseentis, L. Acidophilus and SASP treatment, but that of all three groups were lower than NS group (2.21±0. 83). Even the proportion got close to the normal animals after 17 days'L. Acidophilus -treated. Conclusion The proportion of Thl/Th2 increased at the acute stage and recovery stage of DSS-mice. Both B. Adoleseentis and L. Acidophilus had more effective than SASP on decreasing the proportion of Th1/Th2 at two stages,ospecially L. Acidophilus.     

TNF-α为中心的肝细胞凋亡与LPS所致小鼠肝损伤的关系

【目的】探讨TNF—α为中心的肝细胞凋亡途径在脂多糖（LPS）所致小鼠肝损伤中的地位。【方法】小鼠腹腔注射LPS后不同时间点分离血浆检测谷丙转氨酶（ALT）活性．取肝脏组织切片,HE染色观察病理改变．末端脱氧核糖核酸转移酶地高辛标记方法检测肝细胞凋亡,免疫组化检测肝组织TNF-α表达。【结果】腹腔注射LPS后3h血浆ALT活性明显升高．肝细胞凋亡率明显增加,TNF—α阳性数明显增多：6h血浆ALT活性、肝细胞凋亡率、TNF-α阳性数达到高峰;12h血浆ALT活性明显回落,肝细胞凋亡率、TNF-α阳性数显著减小;24h、30h血浆ALT活性、肝细胞凋亡率基本恢复到对照组水平,肝组织TNF—α阳性数达到较低水平。【结论】小鼠腹腔注射LPS后,先天免疫系统可能在早期启动TNF-α为中心的肝细胞凋亡．引起肝损伤。     

青春双歧杆菌和嗜酸乳酸杆菌对急性期和恢复期结肠炎小鼠Th1/Th2亚群的影响

Objective To observe and analyze the effect of B. Adolescentis and L. Acidophilus on the proportion of Th cell Th1/Th2 in peripheral blood of UC-mice in acute stage and recovery stage. Method 40 BABL/c mice were induced by 3% DSS water for 7 clays free drinking and then with distilled water for 10 days. They were randomly allocated in 4 groups: NS group, SASP group, BF0624 group and LT0637 group, also the fifth group-10 normal animals. The blood of mice were collected by removing their eyes at day 8 and day 18, and then the mononuclear cells were iso]atecl. The proportion of Th1/Th2 was analyze through flow eytometry,hy labeling the specific antibody ot Th cellular membrane with the CD4 antibody, and the cytoplastie antigen of Thl or Th2 with IIA antibody or IF'N-γ antibody. Result The proportion of Th1/Th2 in normal mouse was 0. 84 -0. 94,and it raised up in DSS-mice at both acute stage and recovery stage. It decreased unequally after 7 or 17 days'B, adoleseentis, L. Acidophilus and SASP treatment, but that of all three groups were lower than NS group (2.21±0. 83). Even the proportion got close to the normal animals after 17 days'L. Acidophilus -treated. Conclusion The proportion of Thl/Th2 increased at the acute stage and recovery stage of DSS-mice. Both B. Adoleseentis and L. Acidophilus had more effective than SASP on decreasing the proportion of Th1/Th2 at two stages,ospecially L. Acidophilus.     

青春双歧杆菌和嗜酸乳酸杆菌对急性期和恢复期结肠炎小鼠Th1/Th2亚群的影响

Objective To observe and analyze the effect of B. Adolescentis and L. Acidophilus on the proportion of Th cell Th1/Th2 in peripheral blood of UC-mice in acute stage and recovery stage. Method 40 BABL/c mice were induced by 3% DSS water for 7 clays free drinking and then with distilled water for 10 days. They were randomly allocated in 4 groups: NS group, SASP group, BF0624 group and LT0637 group, also the fifth group-10 normal animals. The blood of mice were collected by removing their eyes at day 8 and day 18, and then the mononuclear cells were iso]atecl. The proportion of Th1/Th2 was analyze through flow eytometry,hy labeling the specific antibody ot Th cellular membrane with the CD4 antibody, and the cytoplastie antigen of Thl or Th2 with IIA antibody or IF'N-γ antibody. Result The proportion of Th1/Th2 in normal mouse was 0. 84 -0. 94,and it raised up in DSS-mice at both acute stage and recovery stage. It decreased unequally after 7 or 17 days'B, adoleseentis, L. Acidophilus and SASP treatment, but that of all three groups were lower than NS group (2.21±0. 83). Even the proportion got close to the normal animals after 17 days'L. Acidophilus -treated. Conclusion The proportion of Thl/Th2 increased at the acute stage and recovery stage of DSS-mice. Both B. Adoleseentis and L. Acidophilus had more effective than SASP on decreasing the proportion of Th1/Th2 at two stages,ospecially L. Acidophilus.     

青春双歧杆菌和嗜酸乳杆菌对小鼠急性实验性结肠炎的治疗作用

目的通过建立葡聚糖硫酸钠（DSS）诱导的急性期溃疡性结肠炎（UC）小鼠模型,探讨青春双歧杆菌和嗜酸乳杆菌诱导UC缓解的作用。方法 6～8周龄雌性BABL/c小鼠50只,体质量（20.0±2.0）g,随机分为5组：正常对照组（N-7组）、嗜酸乳杆菌（L-7组）、青春双歧杆菌组（B-7组）、柳氮磺胺吡啶（SASP）组（S-7组）和生理盐水对照组（NS-7组）,每组10只。除正常对照组外,采用自由饮用2.5%DSS（分子量3.6万～5万）7天建立小鼠UC模型,且从实验第1天开始,给予青春双歧杆菌、嗜酸乳杆菌（2×10^8 CFU/10 g）和SASP（15 mg/10 g）灌肠治疗7天,观察小鼠一般情况、粪便隐血,计算疾病活动指数（DAI）;实验结束时处死动物,测量全段结肠长度,行组织病理学检查并进行组织学评分。结果青春双歧杆菌、嗜酸乳酸杆均能诱导实验性结肠炎的缓解,其DAI积分、病理组织学评分均低于对照组（P〈0.05）;嗜酸乳酸杆的保护作用强于青春双歧杆菌和SASP。结论青春双歧杆菌和嗜酸乳酸杆菌能有效地减轻急性期UC炎症,且嗜酸乳酸杆菌更有利于诱导急性期UC的缓解。     

青春双歧杆菌和嗜酸乳酸杆菌对急性期和恢复期结肠炎小鼠Th1/Th2亚群的影响

Objective To observe and analyze the effect of B. Adolescentis and L. Acidophilus on the proportion of Th cell Th1/Th2 in peripheral blood of UC-mice in acute stage and recovery stage. Method 40 BABL/c mice were induced by 3% DSS water for 7 clays free drinking and then with distilled water for 10 days. They were randomly allocated in 4 groups: NS group, SASP group, BF0624 group and LT0637 group, also the fifth group-10 normal animals. The blood of mice were collected by removing their eyes at day 8 and day 18, and then the mononuclear cells were iso]atecl. The proportion of Th1/Th2 was analyze through flow eytometry,hy labeling the specific antibody ot Th cellular membrane with the CD4 antibody, and the cytoplastie antigen of Thl or Th2 with IIA antibody or IF'N-γ antibody. Result The proportion of Th1/Th2 in normal mouse was 0. 84 -0. 94,and it raised up in DSS-mice at both acute stage and recovery stage. It decreased unequally after 7 or 17 days'B, adoleseentis, L. Acidophilus and SASP treatment, but that of all three groups were lower than NS group (2.21±0. 83). Even the proportion got close to the normal animals after 17 days'L. Acidophilus -treated. Conclusion The proportion of Thl/Th2 increased at the acute stage and recovery stage of DSS-mice. Both B. Adoleseentis and L. Acidophilus had more effective than SASP on decreasing the proportion of Th1/Th2 at two stages,ospecially L. Acidophilus.     

嗜酸乳杆菌和青春双歧杆菌治疗实验性结肠炎小鼠的作用及其机制

目的 评价青春双歧杆菌和嗜酸乳杆菌对实验性结肠炎小鼠模型的治疗效果并初步探讨其机制.方法 75只BABL/C小鼠均分为5组并给予相应处理,其中4组为实验组,分别为:青春双歧杆菌BF0624治疗组(B组)、嗜酸乳杆菌LT0637治疗组(L组)、水杨酸柳氮磺胺吡啶治疗组(S组)、0.9%氯化钠对照组(NS组);另设正常对照组(N组).实验组小鼠用4%葡聚糖硫酸钠造模,N组则饮用0.9%氯化钠溶液.实验期间每天记录动物体重、大便隐血情况,计算疾病活动指数(DAI).在第4、6、8天各组各处死5只小鼠,分离结肠,测量其长度,行病理组织学检查,逆转录PCR和Western印迹法分别测定热休克蛋白(HSP)70、糖皮质激素受体(GR)、白细胞介素(IL)-10和肿瘤坏死因子(TNF)-α的基因和蛋白表达.结果 青春双歧杆菌BF0624和嗜酸乳杆菌LT0637能缓解实验性结肠炎小鼠的肠道炎性反应,第3天时L组小鼠DAI积分(1.8±0.4)低于NS组(2.8±1.0),从第5天开始各治疗组DAI均明显降低.B组、L组、S组第8天时结肠长度分别为(9.0±0.6)、(9.3±0.6)、(8.8±1.1)cm,均大于NS组[(8.1±0.6)cm,P值均＜0.05].第8天时L组小鼠结肠黏膜病理组织学明显改善(组织学评分6.0±1.0).B组和L组IL-10和HSP70表达上调,TNF-α表达下调,GR无变化.结论 青春双歧杆菌BF0624和嗜酸乳杆菌LT0637均对溃疡性结肠炎有治疗作用,益生菌的治疗机制可能与上调HSP70和IL-10以及下调TNF-α的表达有关.     

青春双歧杆菌和嗜酸乳酸杆菌对急性期和恢复期结肠炎小鼠Th1/Th2亚群的影响

Objective To observe and analyze the effect of B. Adolescentis and L. Acidophilus on the proportion of Th cell Th1/Th2 in peripheral blood of UC-mice in acute stage and recovery stage. Method 40 BABL/c mice were induced by 3% DSS water for 7 clays free drinking and then with distilled water for 10 days. They were randomly allocated in 4 groups: NS group, SASP group, BF0624 group and LT0637 group, also the fifth group-10 normal animals. The blood of mice were collected by removing their eyes at day 8 and day 18, and then the mononuclear cells were iso]atecl. The proportion of Th1/Th2 was analyze through flow eytometry,hy labeling the specific antibody ot Th cellular membrane with the CD4 antibody, and the cytoplastie antigen of Thl or Th2 with IIA antibody or IF'N-γ antibody. Result The proportion of Th1/Th2 in normal mouse was 0. 84 -0. 94,and it raised up in DSS-mice at both acute stage and recovery stage. It decreased unequally after 7 or 17 days'B, adoleseentis, L. Acidophilus and SASP treatment, but that of all three groups were lower than NS group (2.21±0. 83). Even the proportion got close to the normal animals after 17 days'L. Acidophilus -treated. Conclusion The proportion of Thl/Th2 increased at the acute stage and recovery stage of DSS-mice. Both B. Adoleseentis and L. Acidophilus had more effective than SASP on decreasing the proportion of Th1/Th2 at two stages,ospecially L. Acidophilus.