简介:ThenickelcatalystSHN-01/Fforone-stagehydrotreatingofpyrolysisgasolinedevelopedbySINOPECShanghaiPetrochemicalResearchInstitutehassuccessfullycompletedcommercialtests,symbolizingthebeginningofcommercialapplicationphaseofthisnickel-basedcatalystforone-stagehydrotreatingofpyrolysisgasolinewithSINOPEC'sindependentintellectualpropertyrights.
简介:SIV/SHIV感染的恒河猴是研究艾滋病及艾滋病药物筛选、疫苗评价较理想的动物模型。MHC在细胞免疫中起着关键作用,研究表明,MHC-I类分子的多态性与SIV/SHIV感染者的疾病进展有着明显的关联作用,Mamu-A^*01是恒河猴中的一种MHC-I类分子,它可以呈递特定的病毒蛋白片段到细胞的表面,从而激发CTL反应。国外发现Mamu-A^*01阳性的猴艾滋病恒河猴会出现疾病进展缓慢,存活时间长等特征。本文就恒河猴Mamu-A^*01基因与SIV/SHIV感染相关的研究进展做一综述,以期进一步加深对MHC在疫苗研究中的作用的了解,并促进更行之有效地对HIV/AIDS疫苗进行评价。
简介:Twonewcompounds,(22E)-25-carboxy-8β,14β-epoxy-4α,5α-dihydroxyergosta-2,22-dien-7-one(1)andfusidione(3),alongwithtwoknowncompounds,5α,8α-epidioxyergosta-6,22-diene-3β-ol(2)andmicroperfuranone(4),wereisolatedfromthefermentationproductsofthemarine-sourcedfungusAcremoniumfusidioidesRZ01.Thestructuresofcompounds1and3wereelucidatedbyextensivespectroscopicmethods,especially2DNMR,andtheirabsoluteconfigurationsweresuggestedonthebasisofthecirculardichroismspectralanalysisandtheNOESYdata.BothnewcompoundsshowedinhibitoryactivityagainstHL-60cellswithIC50valuesbeing16.6and44.9μmol·L-1,respectively.