Nature:毛囊干细胞的“兼职工作”——死亡细胞的吞噬与清除

处于静止期(休止期)的毛囊干细胞(HFSCs)位于毛囊上部外根鞘(uORS)的凸起区,负责启动毛发再生周期。当毛囊干细胞与下方的特化间充质细胞(dermalpapilla,真皮乳头)之间的交流达到阈值时,会启动新的生长期,促使毛囊干细胞短暂增殖,并产生短命的后代(short-livedprogeny),启动毛发的生长。随着新的毛囊生长并将真皮乳...

[论文解读]Nature Climate Change:极短寿命卤代烃放大了热带平流...

D.E.,Tilmes,S.,Lamarque,J.-F.&Saiz-Lopez,A.Veryshort-livedhalogensamplifyozonedepletiontrendsinthetropicallowerstratosphere.NatureClimateChange13,554-560,doi:10.1038/s41558-023-01671-y(2023

Nature重磅:从微生物暗物质中挖掘40万个新基因家族 | 热心肠日报

NatureMicrobiology近期发表的文章,鉴定出一种广谱且半衰期短的抗菌肽,可消除鼻腔金黄色葡萄球菌。这提示,限制抗菌肽的半衰期可能有助于平衡其有益和有害的活性。(@章台柳)原文信息Commensalproductionofabroad-spectrumandshort-livedantimicrobialpeptidepolyeneeliminatesnasalStaphylococcusaureus20...

自考本科英语二【00015】考试真题汇总!

WhyDogBuryTheirFavoriteBonesYoumayfinditcrazythatyourdogburieshisfavoriteboneorchewtoy,onlytodigitupadayortwolater,butthereisactuallyareasonbehindit—itissimplyintheirnature.Forthousandsofyears,dogshaveburiedtheirbones.Thepracti...

博士期间已Nature+Science在手,年仅30的她再发Science,揭示全新的...

博士期间已Nature+Science在手,年仅30的她再发Science,揭示全新的蛋白质降解机制接下来,研究团队的短期目标是更深入地研究这种新发现的Midnolin蛋白降解机制。撰文丨王聪编辑丨王多鱼排版丨水成文短寿命蛋白(Short-livedproteins)通过调控细胞中的基因表达来执行许多重要任务,从帮助大脑形成连接,到帮助身体建立...

Nature子刊:《新型冠状病毒感染的体液免疫应答和抗体》的综述

如图1所示,抗原特异性B细胞被激活后,一部分在滤泡区外(extrafollicular,EF)分化成为短寿命浆细胞(short-livedplasmacell),快速分泌具一定中和能力的抗体,抑制SARS-CoV-2在体内扩散;另一部分则回到滤泡区分化成为生发中心(germinalcenter)B细胞,经过筛选和克隆增殖后最终分化成为长寿命浆细胞(long-livedplasma...

Full text: CPC Policies on the Governance of Xizang in the...

Xizangadoptsaproactiveapproachtocombatsecessionism.ThereactionarynatureoftheDalaiGrouphasbeenexposedanddenounced,andtheregionalgovernmentreliescloselyonthepeopleofallethnicitiestoresistallformsofsecessionandsabotage.Itisnowdeeplyrootedinthepeople'...

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Nature'srespitefrommanmayberathershort-lived.大自然休养生息的时间可能会相当短暂。AChinaEasternAirlinesplaneisseenatShenyangTaoxianInternationalAirport,Oct2,2018.[Photo/Sipa]>Flighttobringstudentshome我国增加临时航班赴英...

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Inshort,weneedyourhelpnowpletethecoupontodayandrestassuredthatyourdonationisgoingtothebestpossiblecause.4.Whereisthepieceoftexttakenfrom?A.anadvertisementB.aninstructionbookletC.astoryD.anewspaperQuestion5(Suggestedcompletiontime:2...

《大学英语B》题型分类版内部资料

2.Newshort-termgoalsarebuiltupon___.短期目标是以以前完成的目标为前提的。A.adailybasisB.yourachievementinaweekC.currentactivitiesD.thegoalsthathavebeencompleted3.Whenwecompleteeachstepofourgoals,___.每完成一个目标,将会增加我们成功的信心...