Cu-Ni alloy nanoparticles were prepared by a microwave combustion method with the molar ratios of CU2＋ to Ni2＋ as 3：7, 4：6, 5：5, 6：4 and 7：3. The as-prepared samples were characterized by XRD, HR-SEM, EDX and V...Cu-Ni alloy nanoparticles were prepared by a microwave combustion method with the molar ratios of CU2＋ to Ni2＋ as 3：7, 4：6, 5：5, 6：4 and 7：3. The as-prepared samples were characterized by XRD, HR-SEM, EDX and VSM. XRD and EDX analyses suggest the formation of pure alloy powders. The average crystallite sizes were found to be in the range of 21.56-33.25 nm. HR-SEM images show the clustered/agglomerated particle-like morphology structure. VSM results reveal that for low Ni content （CusNis, Cu6Ni4 and Cu7Ni3）, the system shows paramagnetic behaviors, whereas for high Ni content （Cu3Ni7 and Cu4Ni6）, it becomes ferromagnetic.展开更多
Aim: Prostane, a polyherbal formulation, was evaluated for its efficacy on 5α-reductase inhibition, α-adrenergic anta-gonistic activity and testosterone-induced prostatic hyperplasia. Methods: 5α-reductase inhibiti...Aim: Prostane, a polyherbal formulation, was evaluated for its efficacy on 5α-reductase inhibition, α-adrenergic anta-gonistic activity and testosterone-induced prostatic hyperplasia. Methods: 5α-reductase inhibition was evaluated usingrat prostate homogenate as an enzyme source. Adrenergic antagonistic activity was evaluated using isolated rat vas def-erens. Experimental prostatic hyperplasia was induced in rats by giving testosterone 3 rog/kg sc for 21 days. Re-sults: Prostane dose-dependently inhibited 5α-reductase activity and exhibited α-adrenergic antagonistic activity. Treat-ment with Prostane at 250, 500 and 750 mg/kg body wt, po for 21 days significantly reduced the prostatic weight, theepithelial height and the stromal proliferation in experimental prostatic hypertrophy. Conclusion: Prostane is effectivein the treatment of experimental prostatic hypertrophy in rats and may be passed on to clinical trials on benign prostatichypertrophy after necessary toxicological evaluations. (Asian J Androl 1999 Dec; 1: 175-179)展开更多
文摘Cu-Ni alloy nanoparticles were prepared by a microwave combustion method with the molar ratios of CU2＋ to Ni2＋ as 3：7, 4：6, 5：5, 6：4 and 7：3. The as-prepared samples were characterized by XRD, HR-SEM, EDX and VSM. XRD and EDX analyses suggest the formation of pure alloy powders. The average crystallite sizes were found to be in the range of 21.56-33.25 nm. HR-SEM images show the clustered/agglomerated particle-like morphology structure. VSM results reveal that for low Ni content （CusNis, Cu6Ni4 and Cu7Ni3）, the system shows paramagnetic behaviors, whereas for high Ni content （Cu3Ni7 and Cu4Ni6）, it becomes ferromagnetic.
文摘Aim: Prostane, a polyherbal formulation, was evaluated for its efficacy on 5α-reductase inhibition, α-adrenergic anta-gonistic activity and testosterone-induced prostatic hyperplasia. Methods: 5α-reductase inhibition was evaluated usingrat prostate homogenate as an enzyme source. Adrenergic antagonistic activity was evaluated using isolated rat vas def-erens. Experimental prostatic hyperplasia was induced in rats by giving testosterone 3 rog/kg sc for 21 days. Re-sults: Prostane dose-dependently inhibited 5α-reductase activity and exhibited α-adrenergic antagonistic activity. Treat-ment with Prostane at 250, 500 and 750 mg/kg body wt, po for 21 days significantly reduced the prostatic weight, theepithelial height and the stromal proliferation in experimental prostatic hypertrophy. Conclusion: Prostane is effectivein the treatment of experimental prostatic hypertrophy in rats and may be passed on to clinical trials on benign prostatichypertrophy after necessary toxicological evaluations. (Asian J Androl 1999 Dec; 1: 175-179)
