Anti-Apoptotic Effects of Caspase Inhibitors on Rat Intervertebral Disc Cells
作者:J.-B. Park、I.-C. Park、S.-J. Park、H.-O. Jin、J.-K. Lee、K. D. Riew
DOI:10.2106/jbjs.e.00762
日期:2006.4.1
initiators or executioners of apoptosis are caspases. There are also inhibitors of caspases, which have the potential of being used as anti-apoptotic therapeutic agents. We therefore undertook this study to determine (1) the apoptotic pathway of anulus fibrosus cells and (2) the anti-apoptotic potential of caspase inhibitors. METHODS Rat anulus fibrosus cells were isolated, cultured, and placed in either
We developed an efficient method for the silylation of alcohols using anilinosilane with tetrabutylammonium fluoride (TBAF) catalyst, wherein TMS, TES and TBS groups were smoothly introduced into silylation-resistant hindered alcohols under mild conditions.
Multi-enzymatic cascade reactions with <i>Escherichia coli</i>-based modules for synthesizing various bioplastic monomers from fatty acid methyl esters
作者:Hee-Wang Yoo、Hyunsang Jung、Sharad Sarak、Ye Chan Kim、Beom Gi Park、Byung-Gee Kim、Mahesh D. Patil、Hyungdon Yun
DOI:10.1039/d1gc04532f
日期:——
involving multi-enzymaticcascadereactions generated ω-ADAs (up to 46 mM), α,ω-diols (up to 29 mM), ω-amino alcohols (up to 29 mM) and α,ω-diamines (up to 21 mM) from 100 mM corresponding FAME substrates with varying carbon chain length (C8, C10, and C12). Finally 12-ADA and 1,12-diol were purified with isolated yields of 66.5% and 52.5%, respectively. The multi-enzymaticcascadereactions reported
多酶级联反应系统旨在使用基于大肠杆菌的细胞模块产生生物聚合物单体,能够进行一锅反应。三个基于细胞的模块,包括一个将脂肪酸甲酯 (FAME) 转化为 ω-羟基脂肪酸 (ω-HFA)的 ω-羟基化模块 (Cell-H m ),一个用于转化的胺化模块 (Cell-A m )底物的末端醇基转化为胺基,以及还原模块(Cell-R m) 将脂肪酸的羧基转化为醇基。这些细胞模块的产品导向组装涉及多酶级联反应,产生 ω-ADA(最高 46 mM)、α,ω-二醇(最高 29 mM)、ω-氨基醇(最高 29 mM)和 α ,ω-二胺(最高 21 mM)来自 100 mM 对应的具有不同碳链长度(C8、C10 和 C12)的 FAME 底物。最后纯化 12-ADA 和 1,12-二醇,分离产率分别为 66.5% 和 52.5%。本文报道的多酶级联反应为从可再生饱和脂肪酸生物合成各种生物聚合物单体提供了一种优雅的“更环保”的替代方案。
Carbofunctional silacyclobutanes
作者:N. V. Ushakov、G. K. Fedorova
DOI:10.1007/bf01431322
日期:1996.4
A four-step synthesis of 1-(omega-hydroxyalkyl)- and 1-(4-hydroxyphenyl)silacyclobutanes was carried out. The influence of the structure of the initial compounds and the reaction conditions on the ratio of the reaction products formed was studied. The stability of the silacyclobutane alcohols and the hydrolysis of their trimethylsilyl ethers were investigated.
Reactions d'halogeno-2, -3 et -4 alcoxysilanes avec le magnesium: resultants experimentaux et etude du mecanisme