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2018 - 07 - 13
对于酸奶我们并不陌生,超市冷藏柜中形形色色的酸奶有时候常常让我们眼花缭乱,酸奶作为人们日常饮食中不可缺少的食物,其对机体健康都有什么好处呢?看看下面这些研究吧!【1】希腊酸奶vs原味酸奶vs低脂酸奶 你如何选择一种最健康的酸奶?新闻阅读:Plain, Greek, low-fat? How to choose a healthy yoghurt酸奶是世界上最古老的发酵乳制品之一,其发源可以追溯到人类文明的开始,当人类开始驯养动物生产牛奶时,对于牛奶的保质期,人类就需要想出一些解决方案了。yoghurt(酸奶)一词来自土耳其,也就是说,在酸奶的生产过程中,牛奶会发生凝结或增稠的过程。与牛奶一样,酸奶也富含钙质和蛋白质,而且其还能为机体提供其它营养成分,比如碘、维生素D、B2、B12和锌等。但酸奶的营养要高于牛奶,主要的原因是发酵的过程会让其更易于被机体所消化,因此营养物质就可以很轻松地被机体所吸收。然而酸奶也有很多类型,比如希腊酸奶和液态酸奶,以及一些添加水果和益生菌的酸奶,那么你知道哪种酸奶最健康吗?通过向鲜奶中引入一些特定的细菌就能制作酸奶了,比如嗜热链球菌、德氏乳杆菌和保加利亚乳杆菌等。通常情况下这些细菌都会在酸奶中出现并且形成酸奶发酵液,它们的协同关系是最终产品一致性的关键因素,同时这也能够带来一些健康益处,比如降低机体腹泻的严重程度和持续时间等。【2】J Nutr and ...
2
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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2019 - 09 - 12
019年9月29日讯 /生物谷BIOON /--健康饮食中脂肪和碳水化合物的完美含量是多少?加拿大麦克马斯特大学的科学家们分析了来自世界18个国家的13.5万多人的饮食日记,以找出答案。研究结果支持了那句古老的格言:适量的摄入碳水化合物和脂肪对你的心脏有好处,可以延年益寿。研究参与者的碳水化合物摄入量占每日热量的46%到77%不等。这一比例越高,死亡、心脏病发作和中风的风险就越大。然而,低碳水化合物并没有带来好处--只要你把注意力集中在水果、蔬菜和全谷物上,而不是白面包和其他精制谷物、白米饭和高糖食物上,每天摄入50%的卡路里似乎就刚刚好。图片来源:https://cn.bing.com更多的惊喜来自脂肪的摄入。首先,每天从脂肪中摄取35%卡路里的人实际上比那些将脂肪含量限制在10%的人死亡的风险更低。也许并不是每个人都有必要将饱和脂肪控制在总热量的10%以下,事实上,低于7%甚至是有害的。一个关键的建议是如何替换多余的碳水化合物。最大的好处是多不饱和脂肪的食物,如核桃,葵花籽和亚麻籽,和脂肪含量高的鱼。需要注意的是:这些发现是基于一项观察性研究,因此研究人员不能直接将因果联系起来。您将希望将它们个性化到您独特的健康档案中。如果你有任何健康问题,和你的医生谈谈如何最好地解释结果。(生物谷Bioon.com)
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型号:
时间: 2021 - 11 - 05
仪器简介:KingFisher Flex基于磁棒式转移磁珠技术,最高通量每批同时处理96个样品,仅需15-40分钟(根据具体样品和 程序),使您从繁琐的样品提取工作中解脱,并获得高质量的产物,为下游检测带来精确结果。规格参数:技术原理KingFisher磁棒转移磁珠技术控制模式单机独立运行;通过电脑及软件控制每批通量24/48/96温控范围室温+5~+115℃磁头类型24DW磁头、96DW磁头、96KF磁头、96PCR磁头 温度准确性±1℃,up to +80℃;±2℃,up to+115℃磁棒类型末端充磁的非拼接式一体化永磁棒温控方式软件设置,每个板位均可实现温控磁套装卸软件控制,自动装卸计算机接口USB接口或RS-232C串口适用板型KF24深孔板、KF96深孔板、KF96浅孔板、96PCR板试剂兼容性通用磁珠试剂,无品牌限制工作体积20-5,000µL/孔软件BindIt3.3.1,可免费升级提取板位8个自动化兼容可与机械臂、移液工作站等周边设备整合操作界面LCD彩色显示屏,图形化用户界面外部尺寸680x600x380mm(WxDxH)仪器...
产品名称: K3 Plus酶标仪
型号:
时间: 2019 - 05 - 23
型号:
时间: 2019 - 04 - 22
描述The LIVE/DEAD™ Fixable Green Dead Cell Stain Kit is used to determine the viability of cells prior to the fixation and permeabilization required for intracellular antibody staining or prior to elimination of biohazardous materials using formaldehyde fixation. This kit has been optimized and validated for use with a blue laser flow cytometer.• Stable—dyes are freeze dried in separate vials to maintain stability• Robust—staining pattern is the same before and after fixation• Bright signal—allows...
型号:
时间: 2019 - 04 - 18
描述This product detects the externalization of phosphatidylserine in apoptotic cells using recombinant annexin V conjugated to green-fluorescent FITC dye and dead cells using propidium iodide (PI). Propidium iodide stains necrotic cells with red fluorescence. After treatment with both probes, apoptotic cells show green fluorescence, dead cells show red and green fluorescence, and live cells show little or no fluorescence.
型号:
时间: 2019 - 04 - 18
描述SYTOX® Green nucleic acid stain is an excellent green-fluorescent nuclear and chromosome counterstain that is impermeant to live cells, making it a useful indicator of dead cells within a population.•  Impermeant to live cells•  Excitation/Emission: 504/523 nm•  Use with 488 Argon-ion laser•  Works with mammalian cells and both Gram-positive and Gram-negative bacteriaSimple Viability Determination SYTOX® Green allows quick determination of cell viability when usin...
型号:
时间: 2019 - 04 - 18
描述Premo™ FUCCI Cell Cycle Sensor is a fluorescent, two-color sensor of cell cycle progression and division in live cells. It allows accurate and sensitive cell cycle analysis of individual cells or a population of cells by fluorescence microscopy, flow cytometry, or high-content imaging.At 2 x 200 µL, this is a smaller pack size version (1/5 volume) of the popular full-size product and perfect for testing its performance in your system.The Premo™ FUCCI Cell Cycle Sensor is delivered by high...
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时间: 2019 - 04 - 18
描述CountBright™ absolute counting beads are a calibrated suspension of microspheres that are brightly fluorescent across a wide range of excitation and emission wavelengths (UV to 635 nm excitation and 385-800 nm emission). CountBright™ absolute counting beads are mixed with the cell sample and assayed via flow cytometry. By comparing the ratio of bead events to cell events, absolute numbers of cells in the sample can be calculated. Because CountBright™ beads are mixed in the test sample, absolut...
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时间: 2019 - 04 - 17
描述CellTrace™ CFSE Cell Proliferation Kit is used for in vitro and in vivo labeling of cells to trace multiple generations using dye dilution by flow cytometry.• Superior performance—bright, single-peak staining enables visualization of multiple generations• Long-term signal stability—well-retained in cells for several days post stain• Non-toxic—staining does not adversely effect cell health• Simple, robust staining protocolView a selection guide for all CellTrace™ Cell Proliferation Kits fo...
型号:
时间: 2019 - 04 - 17
描述CellTrace™ CFSE 细胞增殖试剂盒 (CellTrace™ CFSE Cell Proliferation Kit) 以方便的一次性瓶装形式提供用途广泛,稳定性高的细胞示踪剂。 羧基荧光素二醋酸盐琥珀酰亚胺酯,常称为 CFSE,可被动扩散进入细胞。 这种试剂没有颜色和荧光,直至细胞内的酯酶去除其醋酸盐基团,产生能发出明亮荧光的羧基荧光素琥珀酰亚胺酯。 琥珀酰亚胺酯与细胞内氨基反应,形成稳定且能用醛固定剂固定的荧光偶联物。 此试剂盒包含十份一次性瓶装的 CFSE,因此进行小规模实验时无需制备过量的易变质 CFSE 储存液。 此试剂盒还包括高质量的 DMSO(二甲基亚砜)和详细的实验方案。For Research Use Only. Not for use in diagnostic procedures.图表Suppressive capacity of isolated Treg cells.Suppressive capacity of isolated Treg cells. (A) CD4+ CD25–cells were stained with Ca...
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时间: 2019 - 04 - 17
描述The Click-iT® EdU Pacific Blue™ Flow Cytometry Assay Kit provides a simplified, more robust assay for analyzing DNA replication in proliferating cells as compared to traditional BrdU methods. Newly synthesized DNA is analyzed using the 405 nm laser of the flow cytometer.• Accurate—superior results compared to BrdU assays• Fast—results in as little as 90 minutes• Economical—more assays per kitView selection guide for all Click-iT™ EdU and Click-iT™ Plus EdU assays for flow c...
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...
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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