AIM: To determine the differences of amino acid(AA) levels in experimental autoimmune uveoretinitis(EAU). METHODS: AA analysis of the plasma samples in EAU rats induced by interphotoreceptor retinoid-binding protein e...AIM: To determine the differences of amino acid(AA) levels in experimental autoimmune uveoretinitis(EAU). METHODS: AA analysis of the plasma samples in EAU rats induced by interphotoreceptor retinoid-binding protein emulsion were performed with high performance liquid chromatography(HPLC) and phenylisothiocyanate(PITC) pre-column derivation methods were performed. Using partial least squares discriminant analysis(PLS-DA), the potential biomarkers were identified in EAU rat plasma, and the metabolic pathways related to EAU were further analyzed. RESULTS: The method results showed that linear(r≥0.9957), intra-day reproducible [relative standard deviation(RSD)=0.04%-1.33%], inter-day reproducible(RSD=0.06%-2.07%), repeatability(RSD=0.03%-0.89%), stability(RSD=0.05%-2.48%) and recovery(RSD=1.98%-4.39%), with detection limits of 0.853-11.4 ng/mL. The metabolic profile in EAU rats was different from that in the control groups five AAs concentrations were increased and nine AAs were reduced. Moreover, five metabolic pathways were related to the development of EAU. CONCLUSION: The developed method is a simple, rapid and convenient for determination of AAs in EAU rat plasma, and these findings will provide a comprehensiveinsight on the metabolic profiling of the pathological changes in EAU.展开更多
The starting 1-phenylbutane-1,3-dione (1) was used as key intermediate for the synthesis of several new thiophene and pyrazole derivatives. The newly synthesized compounds were evaluated for in vitro cytotoxicity agai...The starting 1-phenylbutane-1,3-dione (1) was used as key intermediate for the synthesis of several new thiophene and pyrazole derivatives. The newly synthesized compounds were evaluated for in vitro cytotoxicity against an Ehrlich ascites cells and in vivo cytotoxicity for compound 10d using EAC assay and 5-fluorouracil is used as reference drug. Compounds 7c, e and 10c, d showed significant activity in certain cancer cell and have been targeted for further studies, compound 10d is more effective and showed the highest activity. Structures of the newly prepared compounds were confirmed by both spectral, analytical data and molecular calculations.展开更多
基金Supported by the National Natural Science Foundation of China (No.81373826 No.81674032)+1 种基金Natural Science Foundation of Shandong Province (No. ZR2014HQ074)Key Development & Research Program of Shandong Province (No.2017GSF19110)
文摘AIM: To determine the differences of amino acid(AA) levels in experimental autoimmune uveoretinitis(EAU). METHODS: AA analysis of the plasma samples in EAU rats induced by interphotoreceptor retinoid-binding protein emulsion were performed with high performance liquid chromatography(HPLC) and phenylisothiocyanate(PITC) pre-column derivation methods were performed. Using partial least squares discriminant analysis(PLS-DA), the potential biomarkers were identified in EAU rat plasma, and the metabolic pathways related to EAU were further analyzed. RESULTS: The method results showed that linear(r≥0.9957), intra-day reproducible [relative standard deviation(RSD)=0.04%-1.33%], inter-day reproducible(RSD=0.06%-2.07%), repeatability(RSD=0.03%-0.89%), stability(RSD=0.05%-2.48%) and recovery(RSD=1.98%-4.39%), with detection limits of 0.853-11.4 ng/mL. The metabolic profile in EAU rats was different from that in the control groups five AAs concentrations were increased and nine AAs were reduced. Moreover, five metabolic pathways were related to the development of EAU. CONCLUSION: The developed method is a simple, rapid and convenient for determination of AAs in EAU rat plasma, and these findings will provide a comprehensiveinsight on the metabolic profiling of the pathological changes in EAU.
文摘The starting 1-phenylbutane-1,3-dione (1) was used as key intermediate for the synthesis of several new thiophene and pyrazole derivatives. The newly synthesized compounds were evaluated for in vitro cytotoxicity against an Ehrlich ascites cells and in vivo cytotoxicity for compound 10d using EAC assay and 5-fluorouracil is used as reference drug. Compounds 7c, e and 10c, d showed significant activity in certain cancer cell and have been targeted for further studies, compound 10d is more effective and showed the highest activity. Structures of the newly prepared compounds were confirmed by both spectral, analytical data and molecular calculations.
