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新冠疫情：1.7亿例！欧盟扩大辉瑞/BioNTech mRNA疫苗Comirnaty授权：用于12-15岁青少年人群!
新冠疫情：1.7亿例！欧盟扩大辉瑞/BioNTech mRNA疫苗Comirnaty授权：用于12-15岁青少年人群!
2021 - 05 - 31
2021年05月30日讯 /生物谷BIOON/ --目前，国外新冠肺炎疫情仍在迅速蔓延。根据百度《新型冠状病毒肺炎疫情实时大数据报告》，截止2021年05月30日19时，全球累计确诊超过1.7亿（1.7068亿）例，死亡超过354.9万例。近日，辉瑞（Pfizer）与合作伙伴BioNTech联合宣布，其COVID-19 mRNA疫苗Comirnaty（BNT162b2）在欧盟的有条件营销授权（CMA）已扩大至纳入12-15岁的青少年。在此之前，欧洲药品管理局（EMA）人用医药产品委员会（CHMP）发布积极审查意见，推荐批准Comirnaty用于这一年龄组人群。此次Comirnaty CMA适应症扩展，在欧盟所有27个成员国均有效。Comirnaty是第一个在欧盟获得授权的COVID-19疫苗，也是第一个将其CMA扩展到青少年的疫苗。Comirnaty在欧盟成员国的分发和接种，将继续根据欧盟确定的人口和各个国家的指南来实施。在美国方面，今年5月10日，FDA批准扩大Comirnaty的紧急使用授权（EUA），纳入12-15岁青少年群体。值得一提的是，Comirnaty是在美国被批准用于这一年龄组的首个COVID-19疫苗。此前，FDA已授予Comirnaty用于≥16岁人群进行主动免疫的EUA。BioNTech首席执行官兼联合创始人Ugur Sahin医学博士表示：“今天，我们在欧盟...
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Nature：挑战常规！揭示一些乳腺癌和卵巢癌对PARP抑制剂产生耐药性的新机制
Nature：挑战常规！揭示一些乳腺癌和卵巢癌对PARP抑制剂产生耐药性的新机制
2018 - 07 - 20
一种非常复杂的治疗一些乳腺癌和卵巢癌的方法就是使用一类叫做PARP抑制剂的药物。PARP抑制剂旨在利用让发生某些突变的肿瘤特别致命的缺陷。然而，这种靶向癌症治疗方法有时会失败，科学家们迫切地想要知道其中的原因。 如今，在一项新的研究中，美国洛克菲勒大学的Titia de Lange教授及其团队对这种耐药性机制提供了新的认识，并且为抵抗这种耐药性提供了新的希望。他们发现了由基因BRCA1发生的错误引发的一些癌症逃避旨在杀死它们的定制药物的分子机制。这一发现也挑战了之前针对这些PARP抑制剂成功地或未能给患者带来益处的机制作出的猜测。相关研究结果于2018年7月18日在线发表在Nature期刊上，论文标题为“53BP1–RIF1–shieldin counteracts DSB resection through CST- and Polα-dependent fill-in”。图片来自Laboratory of Cell Biology and Genetics at The Rockefeller University。他们的发现有助于解释为什么某些癌症会对PARP抑制剂作出反应，而其他癌症却没有---这种认识最终可能有助于改善对患者的治疗。 缺陷和机会 专家们预测今年将有大约288000例乳腺癌和卵巢癌新确诊病例。这些癌症的很大一部分是由人类基因组中的两个最臭名昭着的基因--- ...
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JNeurosci：自闭症基因与老鼠的大脑和行为缺陷有关
JNeurosci：自闭症基因与老鼠的大脑和行为缺陷有关
2019 - 05 - 13
2019年5月23日讯 /生物谷BIOON /——发表在《JNeurosci》上的一项研究发现，缺乏Shank3基因的老鼠在前额皮质显示出结构和功能缺陷。这项研究增进了我们对自闭症谱系障碍最常见的遗传风险因素之一的理解。Shank3突变在患有自闭症和相关发育障碍的人群中很常见。先前的动物研究表明，Shank3和基底神经节功能障碍之间存在关联，这可能导致自闭症的重复性行为特征。在人类中，Shank3突变也与智力和语言障碍有关。图片来源： JNeurosciMarco Pagani、Alessandro Gozzi和他们的同事在成年雄性小鼠身上使用磁共振成像技术，发现缺乏Shank3的动物的前额皮质连接性和灰质体积减少。研究人员报告说，这些大脑差异与雌鼠的社交活动受损密切相关。这些发现证实了Shank3在维持前额皮质连接方面的作用，这可能会增加自闭症风险。（生物谷Bioon.com）参考资料：Alessandro Gozzi eT al. DeleTion of AuTism Risk Gene Shank3 DisrupTs PrefronTal ConnecTiviTy， JNeurosci (2019). DOI： 10.1523/JNEUROSCI.2529-18.2019
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Attune™ NxT Acoustic Focusing Cytometer, blue/red/violet
产品名称： Attune™ NxT Acoustic Focusing Cytometer, blue/red/violet
型号：
时间： 2019 - 04 - 17
描述The 2018 Attune NxT Acoustic Focusing Cytometer has expanded functionalities to drive your research forward. Designed and developed to remove common barriers associated with flow cytometry, the evolutionary capabilities of the Attune NxT flow cytometer offer adaptable optical configuration options so you can get the most out of your multicolor analysis.• Free Attune NxT software with researcher-inspired upgrades• New green laser option for expanded utility and fluorochrome options• Simple push...
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Attune™ NxT Acoustic Focusing Cytometer, blue/red/violet/yellow
产品名称： Attune™ NxT Acoustic Focusing Cytometer, blue/red/violet/yellow
型号：
时间： 2019 - 04 - 17
描述The 2018 Attune NxT Acoustic Focusing Cytometer has expanded functionalities to drive your research forward. Designed and developed to remove common barriers associated with flow cytometry, the evolutionary capabilities of the Attune NxT flow cytometer offer adaptable optical configuration options so you can get the most out of your multicolor analysis.• Free Attune NxT software with researcher-inspired upgrades• New green laser option for expanded utility and fluorochrome options• Simple push...
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7-AAD (7-Aminoactinomycin D)
产品名称： 7-AAD (7-Aminoactinomycin D)
型号：
时间： 2019 - 04 - 17
描述7-aminoactinomycin D (7-AAD) is a fluorescent intercalator that undergoes a spectral shift upon association with DNA. 7-AAD/DNA complexes can be excited by the 488 nm laser and has an emission maxima of 647 nm, making this nucleic acid stain useful for multicolor fluorescence microscopy and flow cytometry. 7-AAD appears to be generally excluded from live cells, but can be used with cells that have been fixed and permeabilized. 7-AAD has been used for cell cycle analysis by flow cytometry....
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Dynabeads™ CD45
产品名称： Dynabeads™ CD45
型号：
时间： 2019 - 04 - 17
DescriptionDynabeads® CD45 are superparamagnetic beads covalently coupled to anti-human CD45 antibody that enable isolation or depletion of CD45+ leucocytes directly from whole blood, buffy coat, or MNC suspensions. Dynabeads® CD45 can also be used to enrich epithelial tumor cells. The CD45 antigen is weakly expressed on myeloid cells. To efficiently deplete or isolate all leucocytes including myeloid cells, use Dynabeads® CD15 (Cat. No. 11137D) in combination with Dynabeads®...
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EVOS™ 50X Oil Objective, achromat, coverslip-corrected
产品名称： EVOS™ 50X Oil Objective, achromat, coverslip-corrected
型号：
时间： 2019 - 04 - 15
描述This achromat objective is ideal for general applications. This is a coverslip-corrected objective that is optimized for imaging through #1.5 coverslips. All EVOS® objectives offer outstanding optical performance from visible light to near infrared light. The extensive choice of objectives satisfies needs across the spectrum of magnifications and optical specifications.Additional characteristics of this EVOS® objective:• Magnification: 50X• Numerical Aperture: 0.95• Working Distance:...
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EVOS™ M7000 Imaging System
产品名称： EVOS™ M7000 Imaging System
型号：
时间： 2019 - 04 - 15
描述The EVOS M7000 Imaging System is a high-performance, fully automated, inverted, multi-channel fluorescence and transmitted light imaging system. It was developed to meet today’s expectations for image quality, user interface interactions, data generation speed and flexibility, and end-user value. The powerful and time-saving acquisition tools with enhanced autofocus algorithms and automated routines for microwell plate assays, time-lapse live cell imaging, area scanning in time lapse and Z-sta...
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EVOS™ FL Imaging System
产品名称： EVOS™ FL Imaging System
型号：
时间： 2019 - 04 - 15
描述The EVOS® FL Imaging System is a fully integrated, digital, inverted imaging system for four-color fluorescence and transmitted-light applications. It is powerful, yet easy-to-use and delivers high-definition images with exceptional convenience. The unique light cubes, sensitive camera, and precision-engineered optical system make the EVOS® FL system ideal for both demanding and routine fluorescence imaging applications.The EVOS® FL Imaging System offers you these important ad...
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EVOS™ Onstage Master Plate
产品名称： EVOS™ Onstage Master Plate
型号：
时间： 2019 - 04 - 15
描述The EVOS® Onstage Master Plate is part of the EVOS® Onstage Incubator and holds the EVOS® Onstage Vessel Holder. The EVOS® Onstage Incubator is an environmental chamber designed specifically for use with the EVOS® FL Auto Imaging System. This master plate plus vessel holder design, with vessel holders available that accommodate various types of cell culture vessels, provides flexibility in your approach to extended time-lapse imaging experiments under precisely co...
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EVOS™ Onstage Vessel Holder, two 25-mL flasks
产品名称： EVOS™ Onstage Vessel Holder, two 25-mL flasks
型号：
时间： 2019 - 04 - 15
描述EVOS® Onstage vessel holders maximize your choice of cell culture vessels when conducting time-lapse imaging experiments using the EVOS® FL Auto Imaging System equipped with an EVOS® Onstage Incubator. EVOS® Onstage vessel holders allow a perfect fit of your micro-well plates or cell culture flasks/dishes to the master plate of the EVOS® Onstage Incubator for increased precision in sample alignment. This particular vessel holder accommodates two 25-mL T-flasks. With ...
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EVOS™ Onstage Vessel Holder, multi-well plates
产品名称： EVOS™ Onstage Vessel Holder, multi-well plates
型号：
时间： 2019 - 04 - 15
描述EVOS® Onstage vessel holders maximize your choice of cell culture vessels when conducting time-lapse imaging experiments using the EVOS® FL Auto Imaging System equipped with an EVOS® Onstage Incubator. EVOS® Onstage vessel holders allow a perfect fit of your micro-well plates or cell culture flasks/dishes to the master plate of the EVOS® Onstage Incubator for increased precision in sample alignment. This particular vessel holder accommodates multi-well plates (dimensi...
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EVOS™ Vessel Holder for Automated Stage, two 25 x 75 mm slides
产品名称： EVOS™ Vessel Holder for Automated Stage, two 25 x 75 mm slides
型号：
时间： 2019 - 04 - 15
描述EVOS® vessel holders allow a perfect fit of your microscope slide, cell culture flask or dish, or micro-well plate to the stage of the EVOS® imaging systems for increased precision in sample alignment. This particular vessel holder securely holds two 25 x 75 mm standard or chamber microscope slides and is specific for the automated stage of the EVOS® FL Auto Imaging System. It is just one of many easy-to-change vessel holders and stage plates available for this instrument plat...
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EVOS™Vessel Holder, Greiner/BD T-25 flask
产品名称： EVOS™Vessel Holder, Greiner/BD T-25 flask
型号：
时间： 2019 - 04 - 15
描述EVOS® vessel holders allow a perfect fit of your microscope slide, cell culture flask or dish, or micro-well plate to the stage of the EVOS® imaging systems for increased precision in sample alignment. This particular vessel holder accommodates one Greiner/BD T-25 flask. It is just one of many easy-to-change vessel holders and stage plates available for this instrument platform. With a snug and secure fit, yet readily switched, these accessories make imaging samples in a range of ...
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推荐新闻
新冠疫情：1.7亿例！欧盟扩大辉瑞/BioNTech mRNA疫苗Comirnaty授权：用于12-15岁青少年人群!
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