AIM: To investigate whether curcumin could attenuate hepatitis in mice with paracetamol overdose. METHODS: Male mice were divided into four groups. Group 1 (control, n = 8); was fed with distilled water; Group 2 [N-ac...AIM: To investigate whether curcumin could attenuate hepatitis in mice with paracetamol overdose. METHODS: Male mice were divided into four groups. Group 1 (control, n = 8); was fed with distilled water; Group 2 [N-acetyl-P-aminophenol (APAP), n = 8]; was fed with a single dose of 400 mg/kg APAP dissolved in distilled water; Group 3 [APAP + curcumin (CUR) 200, n = 8], was fed with a single dose of 400 mg/kg APAP and 200 mg/kg CUR; Group 4 (APAP + CUR 600, n = 8), was fed with a single dose of 400 mg/kg APAP and 600 mg/ kg CUR. Twenty-four hours later, the liver was removed to examine hepatic glutathione (GSH), hepatic malondialdehyde (MDA), and histopathologically. Then whole blood was withdrawn from heart to determine transaminase (serum glutamic oxaloacetic transaminase and serum glutamic pyruvic transaminase) and inflammatory cytokines [interleukin (IL)-12 and IL-18] levels by enzyme linked immunosorbent assay.RESULTS: Serum transaminase, hepatic MDA, and inflammatory cytokines increased significantly in the APAP compared with the control group. Curcumin supplementation in APAP + CUR 200 and APAP + CUR 600 groups significantly decreased these parameters compared with the APAP group. The level of GSH decreased significantly in the APAP compared with the control group. Curcumin supplementation in APAP + CUR 200 and APAP + CUR 600 groups significantly increased these parameters compared with the APAP group. The histological appearance of the liver in the control group showed normal. In the APAP-treated group, the liver showed extensive hemorrhagic hepatic necrosis at all zones. Curcumin supplementation in APAP + CUR 200 and APAP + CUR 600 groups, caused the liver histopathology to improve. In the APAP + CUR 200 group, the liver showed focal necrosis and but the normal architecture was well preserved in APAP + CUR 600 group. CONCLUSION: APAP overdose can cause liver injury. Results indicate that curcumin prevents APAP-induced hepatitis through the improvement of liver histopathology by decreased oxidative stress, reduced liver inflammation, and restoration of GSH.展开更多
目的:探讨乌骨藤总皂苷(saponins of Marsdenia Tenacissima,SMT)对小鼠急性肝损伤的保护作用及可能机制。方法:建立对乙酰氨基酚(APAP)诱导的小鼠急性肝损伤模型,分为正常组、模型组、SMT给药组(15,30和60 mg·kg-1),紫外-分光光...目的:探讨乌骨藤总皂苷(saponins of Marsdenia Tenacissima,SMT)对小鼠急性肝损伤的保护作用及可能机制。方法:建立对乙酰氨基酚(APAP)诱导的小鼠急性肝损伤模型,分为正常组、模型组、SMT给药组(15,30和60 mg·kg-1),紫外-分光光度法检测各组血清中丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)活性以及肝组织匀浆中超氧化物歧化酶(SOD)、丙二醛(MDA)水平,HE染色法观察肝脏病理学改变。结果:与模型组比较,SMT(30和60 mg·kg-1)灌胃给药能明显降低血清中升高的ALT,AST活性,同时发现SMT可降低肝组织匀浆中升高的MDA和SOD水平。SMT可明显改善肝组织坏死范围和程度,减少炎细胞浸润。结论:SMT对APAP所致急性肝损伤小鼠具有一定的保护作用,其机制可能与SMT抗氧化作用等有关。展开更多
基金Supported by The 90th Anniversary Fund of Chulalongkorn University, Ratchada Phiseksomphot Endowment FundGrant of Ratchadaphiseksomphot, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
文摘AIM: To investigate whether curcumin could attenuate hepatitis in mice with paracetamol overdose. METHODS: Male mice were divided into four groups. Group 1 (control, n = 8); was fed with distilled water; Group 2 [N-acetyl-P-aminophenol (APAP), n = 8]; was fed with a single dose of 400 mg/kg APAP dissolved in distilled water; Group 3 [APAP + curcumin (CUR) 200, n = 8], was fed with a single dose of 400 mg/kg APAP and 200 mg/kg CUR; Group 4 (APAP + CUR 600, n = 8), was fed with a single dose of 400 mg/kg APAP and 600 mg/ kg CUR. Twenty-four hours later, the liver was removed to examine hepatic glutathione (GSH), hepatic malondialdehyde (MDA), and histopathologically. Then whole blood was withdrawn from heart to determine transaminase (serum glutamic oxaloacetic transaminase and serum glutamic pyruvic transaminase) and inflammatory cytokines [interleukin (IL)-12 and IL-18] levels by enzyme linked immunosorbent assay.RESULTS: Serum transaminase, hepatic MDA, and inflammatory cytokines increased significantly in the APAP compared with the control group. Curcumin supplementation in APAP + CUR 200 and APAP + CUR 600 groups significantly decreased these parameters compared with the APAP group. The level of GSH decreased significantly in the APAP compared with the control group. Curcumin supplementation in APAP + CUR 200 and APAP + CUR 600 groups significantly increased these parameters compared with the APAP group. The histological appearance of the liver in the control group showed normal. In the APAP-treated group, the liver showed extensive hemorrhagic hepatic necrosis at all zones. Curcumin supplementation in APAP + CUR 200 and APAP + CUR 600 groups, caused the liver histopathology to improve. In the APAP + CUR 200 group, the liver showed focal necrosis and but the normal architecture was well preserved in APAP + CUR 600 group. CONCLUSION: APAP overdose can cause liver injury. Results indicate that curcumin prevents APAP-induced hepatitis through the improvement of liver histopathology by decreased oxidative stress, reduced liver inflammation, and restoration of GSH.
