AIM: To investigate the effects of moxibustion on down-regulation of the colonic epithelial cell apoptosis and repair of the tight junctions in rats with Crohn's disease (CD). METHODS: Sixty male Sprague-Dawley ra...AIM: To investigate the effects of moxibustion on down-regulation of the colonic epithelial cell apoptosis and repair of the tight junctions in rats with Crohn's disease (CD). METHODS: Sixty male Sprague-Dawley rats were randomly divided into a normal control (NC) group, a model control (MC) group, an herbs-partitioned moxibustion (HPM) group, a mild-warm moxibustion (MWM) group and a salicylazosulphapyridine (SASP) group, with 12 rats in each group. The CD model rats were treated with trinitrobenzene sulphonic acid to induce intestinal inflammation. The rats in the HPM and MWM groups were treated at the Tianshu (ST25) and Qihai (CV6) acupoints once daily for 14 d, and the SASP group was fed SASP twice daily for 14 d. No additional treatment was given to the MC and NC groups. Themicrostructure of the colonic epithelium was observed under a transmission electron microscope, the transepithelial resistance was measured using a shortcircuit current, colonic epithelial cell apoptosis was determined by terminal deoxynucleotidyl transferasemediated dUTP-biotin nick end labelling assay, and the expression of occludin, claudin-1 and zonula occludens-l (ZO-1) in the colonic epithelial junction was determined by Western blotting and immunofluorescence staining. RESULTS: Compared with the MC group, the microstructure of the colonic epithelial barrier was signifi-cantly improved in rats treated with HPM, MWM or SASP, meanwhile, the current flow was reduced signifi-cantly, with values of 168.20 ± 6.14 vs 99.70 ± 3.13, 99.10 ± 4.28 and 120.30 ± 3.65 mA, respectively (P = 0.001). However, the HPM and MWM groups had higher current flow rates than the SASP group (99.70 ± 3.13, 99.10 ± 4.28 vs 120.30 ± 3.65 mA, P = 0.001). The number of the apoptotic colonic epithelial cells in HPM, MWM and SASP groups was largely reduced (61.5 ± 16.91 vs 15.5 ± 8.89, 14.8 ± 6.27 and 24.7 ± 9.68, respectively (P = 0.001); and the expression of occlu- din, claudin-1 and ZO-1 in the MWM and HPM groups was signifi cantly enhanced (0.48 ± 0.10, 0.64 ± 0.09 vs 0.18 ± 0.05 for occludin, 0.12 ± 0.02, 0.17 ± 0.03 vs 0.05 ± 0.01 for claudin-1, and 0.08 ± 0.01, 0.11 ± 0.01 vs 0.02 ± 0.01 for ZO-1). And in SASP group, the expression of occludin and ZO-1 was also signifi cantly increased (0.27 ± 0.04 vs 0.18 ± 0.05 for occludin and 0.05 ± 0.01 vs 0.02 ± 0.01 for ZO-1), but there was no significant difference for claudin-1. The HPM and MWM groups had higher expression of occludin, claudin-1 and ZO-1 than the SASP group. CONCLUSION: HPM and MWM treatment can down-regulate apoptosis of colonic epithelial cells, repair tight junctions and enhance colonic epithelial barrier function in rats with CD.展开更多
Objectives： Burns are shown as a clinical problem for their severity and multiple complications due to the time required to heal. Therapies that improve their healing are of great importance, especially for being mi...Objectives： Burns are shown as a clinical problem for their severity and multiple complications due to the time required to heal. Therapies that improve their healing are of great importance, especially for being minimally invasive, of low cost and best performance, all related to the speed and quality of healing. This study investigated the effects of the magnetic electro stimulator Haihuá CD9 isolated or in association with Aloe vera in rats skin burns. Methods： Experimental groups （n = 30/group） were： （C） Carbopol gel; （F） A. vera/Carbopol gel; （H） Haihuá＋Carbopol gel; （H＋F） Haihuá＋A. vera/Carbopol gel. Samples were collected on the 7th, 14th, and 21st experimental days for structural and morphometric analysis, hydroxyproline and glycosaminoglycans quantification, zymography for MMP-2 and MMP-9 and Western Blotting for TGF-β1, VEGF, Collagen I and III. Key findings： The expression of TGF-β1 in H＋F was increased on the 7th day and of MMP-9 on the 7th and 14th days. The expression of VEGF increased in the first experimental periods and decreased in the last for the treated groups. There was an increase in the fibroblasts and birefringent collagen fibers in groups treated with Haihuá isolated or in association with A. vera in all periods. The quantification of collagen I increased, while collagen III decreased in H＋F. The higher amount of GAGs and MMP-2 active isoform was detected in H and H＋F during all periods. Conclusions： Considering the results of the present study, electromagnetic stimulation in association with the A. vera extract promoted an increase in the number of fibroblasts, GAGs content, MMP-2 activity, the deposition and organization of collagen fibers, favoring the repair of injuries to second degree burns, and may also present therapeutic potential in this injury type.展开更多
基金Supported by National Natural Science Foundation of China,No. 30772831National Basic Research Program of China, 973program, No. 2009CB522900Shanghai Leading Discipline Project, No. S30304
文摘AIM: To investigate the effects of moxibustion on down-regulation of the colonic epithelial cell apoptosis and repair of the tight junctions in rats with Crohn's disease (CD). METHODS: Sixty male Sprague-Dawley rats were randomly divided into a normal control (NC) group, a model control (MC) group, an herbs-partitioned moxibustion (HPM) group, a mild-warm moxibustion (MWM) group and a salicylazosulphapyridine (SASP) group, with 12 rats in each group. The CD model rats were treated with trinitrobenzene sulphonic acid to induce intestinal inflammation. The rats in the HPM and MWM groups were treated at the Tianshu (ST25) and Qihai (CV6) acupoints once daily for 14 d, and the SASP group was fed SASP twice daily for 14 d. No additional treatment was given to the MC and NC groups. Themicrostructure of the colonic epithelium was observed under a transmission electron microscope, the transepithelial resistance was measured using a shortcircuit current, colonic epithelial cell apoptosis was determined by terminal deoxynucleotidyl transferasemediated dUTP-biotin nick end labelling assay, and the expression of occludin, claudin-1 and zonula occludens-l (ZO-1) in the colonic epithelial junction was determined by Western blotting and immunofluorescence staining. RESULTS: Compared with the MC group, the microstructure of the colonic epithelial barrier was signifi-cantly improved in rats treated with HPM, MWM or SASP, meanwhile, the current flow was reduced signifi-cantly, with values of 168.20 ± 6.14 vs 99.70 ± 3.13, 99.10 ± 4.28 and 120.30 ± 3.65 mA, respectively (P = 0.001). However, the HPM and MWM groups had higher current flow rates than the SASP group (99.70 ± 3.13, 99.10 ± 4.28 vs 120.30 ± 3.65 mA, P = 0.001). The number of the apoptotic colonic epithelial cells in HPM, MWM and SASP groups was largely reduced (61.5 ± 16.91 vs 15.5 ± 8.89, 14.8 ± 6.27 and 24.7 ± 9.68, respectively (P = 0.001); and the expression of occlu- din, claudin-1 and ZO-1 in the MWM and HPM groups was signifi cantly enhanced (0.48 ± 0.10, 0.64 ± 0.09 vs 0.18 ± 0.05 for occludin, 0.12 ± 0.02, 0.17 ± 0.03 vs 0.05 ± 0.01 for claudin-1, and 0.08 ± 0.01, 0.11 ± 0.01 vs 0.02 ± 0.01 for ZO-1). And in SASP group, the expression of occludin and ZO-1 was also signifi cantly increased (0.27 ± 0.04 vs 0.18 ± 0.05 for occludin and 0.05 ± 0.01 vs 0.02 ± 0.01 for ZO-1), but there was no significant difference for claudin-1. The HPM and MWM groups had higher expression of occludin, claudin-1 and ZO-1 than the SASP group. CONCLUSION: HPM and MWM treatment can down-regulate apoptosis of colonic epithelial cells, repair tight junctions and enhance colonic epithelial barrier function in rats with CD.
文摘Objectives： Burns are shown as a clinical problem for their severity and multiple complications due to the time required to heal. Therapies that improve their healing are of great importance, especially for being minimally invasive, of low cost and best performance, all related to the speed and quality of healing. This study investigated the effects of the magnetic electro stimulator Haihuá CD9 isolated or in association with Aloe vera in rats skin burns. Methods： Experimental groups （n = 30/group） were： （C） Carbopol gel; （F） A. vera/Carbopol gel; （H） Haihuá＋Carbopol gel; （H＋F） Haihuá＋A. vera/Carbopol gel. Samples were collected on the 7th, 14th, and 21st experimental days for structural and morphometric analysis, hydroxyproline and glycosaminoglycans quantification, zymography for MMP-2 and MMP-9 and Western Blotting for TGF-β1, VEGF, Collagen I and III. Key findings： The expression of TGF-β1 in H＋F was increased on the 7th day and of MMP-9 on the 7th and 14th days. The expression of VEGF increased in the first experimental periods and decreased in the last for the treated groups. There was an increase in the fibroblasts and birefringent collagen fibers in groups treated with Haihuá isolated or in association with A. vera in all periods. The quantification of collagen I increased, while collagen III decreased in H＋F. The higher amount of GAGs and MMP-2 active isoform was detected in H and H＋F during all periods. Conclusions： Considering the results of the present study, electromagnetic stimulation in association with the A. vera extract promoted an increase in the number of fibroblasts, GAGs content, MMP-2 activity, the deposition and organization of collagen fibers, favoring the repair of injuries to second degree burns, and may also present therapeutic potential in this injury type.
