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.

简介：Inthisreview,weintensivelyfocusontheadvancesinresearchofnaturalproducts(NPs)discoverycarriedoutbydomesticscholarsinChinafrom2015through2017.Ingeneral,atotalof1811publications(1479inEnglishand332inChinese)wereaccumulatedregardingnewlyisolatedNPsfromplants,microorganisms,andmarinesources.Asaresult,277selectedpapersconcerningnaturallyoccurringcompoundswithextraordinaryframeworks,origins,andpromisingactivitieswerediscussedinthisreviewarticle,mainlyorganizedaccordingtotheirstructuralclassesandnovelties.

简介：目的：利用人脐静脉内皮细胞体外培养模型，探讨肾上腺素刺激状态下海带多糖L01对内皮细胞的保护作用，以及其对其分泌的组织型纤溶酶原激活物（t-PA）的影响，从内皮细胞抗血栓功能方面探讨海带多糖L01对心血管系统的保护作用。方法：体外培养人脐静脉内皮细胞系ECV-304，用肾上腺素刺激24h、48h、72h采样，ELISA法测定HUVECs培养上清液中的t-PA含量，逆转录多聚酶链反应（RT-PCR）检测HUVEC细胞内t-PAmRNA的表达，其扩增产物经电泳后密度扫描及半定量分析。结果：肾上腺素模型组HUVECs培养液中t-PA（24h、48h）含量明显增加，；单给海带多糖对HUVECst-PA分泌无影响。海带多糖L01在肾上腺素刺激下给药24h，48h后t-PA抗原分泌明显降低（P〈0．01），且具有一定的量效关系，但HUVECst-PAmRNA表达各组均无明显差异。结论：肾上腺素可刺激内皮细胞分泌t-PA抗原，海带多糖L01对血管内皮具有一定的保护作用，减少肾上腺素刺激下HUVECs分泌t-PA，而对t-PAmRNA表达无明显影响。

简介：通过关键性事件回顾,说明2015年是政策变革年,变革、洗牌和大机遇成为年度主题。从综合200指数和具体品种走势分析可以看出,2015年国内中药材市场整体走势继续呈下行态势。同时,家种药材生产过剩和野生药材资源枯竭相伴,成为行业危机;而药食两用药材和泊来新资源食品热销,带动行业需求旺盛。展望2016年,综合200指数在振荡中继续下探,但多空力量的博弈,让行业继续充满商机。机遇要远大过挑战,中药行业将迎来历史上最好的发展时期。

简介：2015年我国中药材及中药饮片出口量价齐跌，这与整体经济增速放缓，大宗商品价格整体下降有一定关系。预计未来中药材及中药饮片出口量仍有进一步下滑的可能，但出口价格基本会平稳。

简介：Thepresentstudywasdesignedtosynthesize2-Cyano-3,12-dioxooleana-1,9(11)-en-28-oate-13β,28-olide(1),alactonederivativeofoleanolicacid(OA)andevaluateitsanti-inflammatoryactivity.Compound1significantlydiminishednitricoxide(NO)productionanddown-regulatedthemRNAexpressionofiNOS,COX-2,IL-6,IL-1β,andTNF-αinlipopolysaccharide(LPS)-stimulatedRAW264.7cells.FurtherinvivostudiesinmurinemodelofLPS-inducedacutelunginjury(ALI)showedthat1possessedmorepotentprotectiveeffectsthanthewell-knownanti-inflammatorydrugdexamethasonebyinhibitingmyeloperoxidase(MPO)activity,reducingtotalcellsandneutrophils,andsuppressinginflammatorycytokinesexpression,andthusamelioratingthehistopathologicalconditionsoftheinjuredlungtissue.Inconclusion,compound1couldbedevelopedasapromisinganti-inflammatoryagentforinterventionofLPS-inducedALI.