目的探讨应用D-半乳糖(D-gal)建立小鼠肝脏损伤模型的方法.方法将20只小鼠随机分为两组,正常对照组应用生理盐水20 m L/(κg·d-1)皮下注射,模型组应用D-半乳糖按500 mg/(κg·d-1)皮下注射.造模完成后采用比色法测定血清AST,AL...目的探讨应用D-半乳糖(D-gal)建立小鼠肝脏损伤模型的方法.方法将20只小鼠随机分为两组,正常对照组应用生理盐水20 m L/(κg·d-1)皮下注射,模型组应用D-半乳糖按500 mg/(κg·d-1)皮下注射.造模完成后采用比色法测定血清AST,ALT及GST;放免法测定血浆PGE2,TNF及IL-6;Western blot方法检测肝组织COX-2表达.通过光镜观察肝组织病理变化.结果血浆ALT,AST及GST模型组与正常对照组比较有明显升高(P<0.01);模型组与正常对照组比较血浆PGE2,TNF及IL-6升高明显,差异具有统计学意义(P<0.01);病理切片显示肝脏结构呈现病理改变.结论应用D-半乳糖可以成功制作小鼠肝脏损伤模型.展开更多
Objective:To preliminarily investigate the possible role of prostaglandin D_2(PGD_2) in malaria infections.Methods:Blood and urinary samples(n=120 each) were collected from Thai patients with Plasmodium falciparum(P.f...Objective:To preliminarily investigate the possible role of prostaglandin D_2(PGD_2) in malaria infections.Methods:Blood and urinary samples(n=120 each) were collected from Thai patients with Plasmodium falciparum(P.falciparum) with moderate(n=26) and high(n=4) parasitemia,patients with Plasmodium vivax(P.vivax)(n=30),patients with fever associated with other infections(n=30),and healthy subjects(n=30).PGD_2 concentrations in plasma and urinary samples of healthy subjects,patients with fever associated with other infections and patients with malaria were determined using Prostaglandin D2-MOX express EIA kit(Cayman Chemical,USA).Results:The possible association between PGD_2 and malaria infections is clearly demonstrated with PGD_2 concentration in urine.The urinary PGD_2 concentrations were relatively high(about 5-fold) in patients with P.falciparum with moderate parasitemia and P.vivax infections compared with other groups.Furthermore,the concentration in patients with P.falciparum with moderate parasitemia and P.vivax infection were significantly higher than that in healthy subjects and patients with fever associated with other infections.Conclusions:Urinary PGD_2 concentrations may offer a more dependable and useful tool for predicting malaria severity.Confirmation is this preliminary finding is required with a larger sample size.展开更多
Objective： Cheongseoikki-tang （CIT, Korean）, also called Qingshu Yiqi decoction（清署益气汤）and Seisho-ekki-to （Japanese）, is well known as an effective traditional combination of herbs for treating cardiovascul...Objective： Cheongseoikki-tang （CIT, Korean）, also called Qingshu Yiqi decoction（清署益气汤）and Seisho-ekki-to （Japanese）, is well known as an effective traditional combination of herbs for treating cardiovascular diseases. This study was to research its effects on bone marrow-derived mast cell （BMMC）-mediated allergy and inflammation mechanisms. Methods： In this study, the biological effect of Cheongseoikki-tang ethanol extract （CITE） was evaluated, focusing on its effects on the production of allergic mediators by phorbol 12-myfistate 13-acetate （PMA） plus calcium ionophore A23187 （A23187）-stimulated BMMCs. These allergic mediators included intedeukin-6 （IL-6）, prostaglandin D2 （PGD2）, leukotfiene （34 （LTC4）, and β-hexosaminidase （13-hex）. Results： Our data revealed that CITE inhibited the production of IL-6, PGD2,/TC4, and 15-hex induced by PMA plus A23187 （P〈0.05）. Conclusion： These findings indicate that CITE has the potential for use in the treatment of allergy.展开更多
文摘目的探讨应用D-半乳糖(D-gal)建立小鼠肝脏损伤模型的方法.方法将20只小鼠随机分为两组,正常对照组应用生理盐水20 m L/(κg·d-1)皮下注射,模型组应用D-半乳糖按500 mg/(κg·d-1)皮下注射.造模完成后采用比色法测定血清AST,ALT及GST;放免法测定血浆PGE2,TNF及IL-6;Western blot方法检测肝组织COX-2表达.通过光镜观察肝组织病理变化.结果血浆ALT,AST及GST模型组与正常对照组比较有明显升高(P<0.01);模型组与正常对照组比较血浆PGE2,TNF及IL-6升高明显,差异具有统计学意义(P<0.01);病理切片显示肝脏结构呈现病理改变.结论应用D-半乳糖可以成功制作小鼠肝脏损伤模型.
基金funded by Thailand Research Fund-Thammasat University Joint Fund and Graduated Student Grant to P.Thongdee(No.PHD/0365/2552)
文摘Objective:To preliminarily investigate the possible role of prostaglandin D_2(PGD_2) in malaria infections.Methods:Blood and urinary samples(n=120 each) were collected from Thai patients with Plasmodium falciparum(P.falciparum) with moderate(n=26) and high(n=4) parasitemia,patients with Plasmodium vivax(P.vivax)(n=30),patients with fever associated with other infections(n=30),and healthy subjects(n=30).PGD_2 concentrations in plasma and urinary samples of healthy subjects,patients with fever associated with other infections and patients with malaria were determined using Prostaglandin D2-MOX express EIA kit(Cayman Chemical,USA).Results:The possible association between PGD_2 and malaria infections is clearly demonstrated with PGD_2 concentration in urine.The urinary PGD_2 concentrations were relatively high(about 5-fold) in patients with P.falciparum with moderate parasitemia and P.vivax infections compared with other groups.Furthermore,the concentration in patients with P.falciparum with moderate parasitemia and P.vivax infection were significantly higher than that in healthy subjects and patients with fever associated with other infections.Conclusions:Urinary PGD_2 concentrations may offer a more dependable and useful tool for predicting malaria severity.Confirmation is this preliminary finding is required with a larger sample size.
基金Supported by the National Research Foundation of Korea Grant (No.NRF-2010-013-E00034)the Grant of the Traditional Korean Medicine R&D project,Ministry of Health & Welfare, Republic of Korea(No.B120069)
文摘Objective： Cheongseoikki-tang （CIT, Korean）, also called Qingshu Yiqi decoction（清署益气汤）and Seisho-ekki-to （Japanese）, is well known as an effective traditional combination of herbs for treating cardiovascular diseases. This study was to research its effects on bone marrow-derived mast cell （BMMC）-mediated allergy and inflammation mechanisms. Methods： In this study, the biological effect of Cheongseoikki-tang ethanol extract （CITE） was evaluated, focusing on its effects on the production of allergic mediators by phorbol 12-myfistate 13-acetate （PMA） plus calcium ionophore A23187 （A23187）-stimulated BMMCs. These allergic mediators included intedeukin-6 （IL-6）, prostaglandin D2 （PGD2）, leukotfiene （34 （LTC4）, and β-hexosaminidase （13-hex）. Results： Our data revealed that CITE inhibited the production of IL-6, PGD2,/TC4, and 15-hex induced by PMA plus A23187 （P〈0.05）. Conclusion： These findings indicate that CITE has the potential for use in the treatment of allergy.
