首页|Curcumin prevents indomethacin-induced gastropathy in rats

Curcumin prevents indomethacin-induced gastropathy in rats

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AIM:To investigate the effects of curcumin on gastric microcirculation and inflammation in rats with indomethacin-induced gastric damage.METHODS:Male Sprague-Dawley rats were randomly divided into three groups.Group 1 (control group,n =5) was fed with olive oil and 5％ NaHCO3-(vehicle).Group 2 [indomethacin (IMN) group,n =5] was fed with olive oil 30 min prior to indomethacin 150 mg/kg body weight (BW) dissolved in 5％ NaHCO3-at time 0th and 4th h.Group 3 (IMN + Cur group,n =4) was fed with curcumin 200 mg/kg BW dissolved in olive oil 0.5 mL,30 min prior to indomethacin at 0th and 4th h.Leukocyte-endothelium interactions at postcapillary venules were recorded after acridine orange injection.Blood samples were determined for intercellular adhesion molecule (ICAM)-1 and tumor necrosis factor (TNF)-α levels using enzyme linked immunosorbent assay method Finally,the stomach was removed for histopathological examination for gastric lesions and grading for neutrophil infiltration.RESULTS:In group 2,the leukocyte adherence in postcapillary venules was significantly increased compared to the control group (6.40 ± 2.30 cells/frame vs 1.20 ± 0.83 cells/frame,P =0.001).Pretreatment with curcumin caused leukocyte adherence to postcapillary venule to decline (3.00 ± 0.81 cells/frame vs 6.40 ± 2.30 cells/frame,P =0.027).The levels of ICAM-1 and TNF-α increased significantly in the indomethacintreated group compared with the control group (1106.50± 504.22 pg/mL vs 336.93 ± 224.82 pg/mL,P =0.011and 230.92 ± 114.47 pg/mL vs 47.13 ± 65.59 pg/mL,P =0.009 respectively).Pretreatment with curcumin significantly decreased the elevation of ICAM-1 and TNF-α levels compared to treatment with indomethacin alone (413.66 ± 147.74 pg/mL vs 1106.50 ± 504.22 pg/mL,P =0.019 and 58.27 ± 67.74 pg/mL vs 230.92 ± 114.47 pg/mL,P =0.013 respectively).The histological appearance of the stomach in the control group was normal.In the indomethacin-treated group,the stomachs showed a mild to moderate neutrophil infiltration score.Gastric lesions were erosive and ulcerative.In rats treated with indomethacin and curcumin,stomach histopathology improved and showed only a mild neutrophil infiltration score and fewer erosive lesions in the gastric mucosa.CONCLUSION:The results indicate that curcumin prevents indomethacin-induced gastropathy through the improvement of gastric microcirculation by attenuating the level of ICAM-1 and TNF-α.

CurcuminNonsteroidal anti-inflammatory drugsGastric damageGastric microcirculationIntercellular adhesion molecule-1Tumor necrosis factor-α

Duangporn Thong-Ngam、Sakonwan Choochuai、Suthiluk Patumraj、Maneerat Chayanupatkul、Naruemon Klaikeaw

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Department of Physiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand

Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand

Grant of Ratchadaphiseksomphot,Faculty of Medicine,Chulalongkorn University,Bangkok,Thailand

RA 53/522

2012

10.3748/wjg.v18.i13.1479

世界胃肠病学杂志(英文版)
太原消化病研治中心

世界胃肠病学杂志(英文版)

SCI
影响因子：1.001
ISSN：1007-9327
年,卷(期)：2012.18(13)
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