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科学家发现精神分裂相关基因位点
科学家发现精神分裂相关基因位点
2019 - 02 - 01
复旦大学类脑智能科学与技术研究院冯建峰团队对来自英美等 6 个国家、20 余所研究机构超过 1 万例影像遗传学数据进行计算分析，通过全脑全基因组范围的 “广泛搜索”，发现与青春期大脑壳核体积相关的基因位点同时也是精神分裂症的风险位点。该成果近日发表于《美国医学会杂志—精神病学卷》。“这项研究证明青春期大脑壳核体积异常和精神分裂症致病风险高度相关。” 冯建峰表示，该发现有望帮助科学家揭示精神分裂症发病机制，为临床症状出现之前的超前干预研究提供新思路。精神疾病防治是当今世界各国面临的共同难题。据报道，在中国，精神疾病已超过心脑血管疾病和恶性肿瘤，成为医疗体系的最大负担。“大脑在不同年龄受不同遗传信息影响，此前的研究未严格控制这一混杂因素，导致重要的遗传信号被‘淹没’。” 论文第一作者、复旦大学类脑智能科学与技术研究院副研究员罗强告诉《中国科学报》，研究团队选取了 14 岁健康青少年脑结构影像数据，同时突破了传统的解剖学脑区划分限制，在全脑全基因组范围内开展无偏的探索性研究，首次找到了青少年大脑结构与基因位点之间最为显著的关联关系。同时针对该结果，研究人员进一步开展了孟德尔随机化分析，发现了一条基因—大脑—精神分裂症的新通路。“这项研究的突破主要基于对来自全球范围的多中心影像遗传学数据进行计算分析，这些全维度标准化大数据的获取，得益于多年来我们在全世界范围内深入开展的国际合作研究。” 冯...
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研究发现不健康饮食导致大脑退化
研究发现不健康饮食导致大脑退化
2019 - 06 - 18
和50年前相比，现在人们日常卡路里摄入更多，平均每天高出650大卡，相当于每天多吃了一顿有汉堡、薯条和可乐的套餐，约占男性和女性每日所需食物能量的1/4和1/3。这些多余的卡路里不仅体现在越来越多人圆滚的腰围上，根据澳大利亚国立大学（Australian National University，ANU）的专家提醒，更会对我们的大脑带来“毁灭性”的影响。ANU团队的最新研究显示，由于不健康生活方式，大脑功能衰退可能比我们想象得更早。研究结果近日发表在Frontiers in Neuroendocrinology。根据世界卫生组织的数据，全球约有39%的成人超重，13%的成人肥胖。作为超重和肥胖的常见健康后果之一，2型糖尿病在2030年将影响约10%的成人。众所周知，2型糖尿病与大脑健康受损、认知功能退化有关，神经损伤也是糖尿病的并发症之一。那么，在还没有出现高血糖等符合糖尿病诊断的症状时，神经退行性病变和认知障碍是否也已经处于病理过程中了？又与哪些导致血糖变化的因素有关？研究团队回顾了近200项相关的国际研究，结果表明，即便是非糖尿病人群，由于血糖偏高和肥胖而导致的神经病变也在非常早期就开始了，并且从那时起就开始影响大脑健康和认知功能。比如，一项涉及澳大利亚超过7000人的PATH研究显示，哪怕血糖值尚且在正常范围内，但血糖偏高的人群，大脑中海马和杏仁核普遍萎缩更多，4年内体积约缩小...
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照生行——上海慕尼黑生化分析展完美收官
照生行——上海慕尼黑生化分析展完美收官
2018 - 11 - 08
2018年10月31日-11月2日，北京照生行仪器设备有限公司在上海新国际展览中心E2-2380馆亮相2018慕尼黑上海生化分析展。                                                                                   目前，作为美国Labconco公司在中国的独家代理商，为全国范围内的客户提供Labconco公司的全线产品——冷冻干燥系统、生物安全柜、洗瓶机、离心浓缩仪、样品快速蒸发系统、通风橱、动物柜、手套箱等。金牌级别的销售为您保“价”护航。此次展会，小佑很荣幸的去到上海这座魔都支持展会活动。在慕尼黑生化分析展开始前，小佑给大家展示过我们展台的效果图，今天小佑带大家欣赏我们展台搭建的实体效果噻！就说美不美？展会期间我们将冷冻干燥系统、离心浓缩系统、生物安全柜和洗瓶机的系列产品携带于展会。让更多的观...
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LIVE/DEAD™ Fixable Green Dead Cell Stain Kit, for 488 nm excitation
产品名称： LIVE/DEAD™ Fixable Green Dead Cell Stain Kit, for 488 nm excitation
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...
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Dead Cell Apoptosis Kit with Annexin V FITC and PI, for flow cytometry
产品名称： Dead Cell Apoptosis Kit with Annexin V FITC and PI, for flow cytometry
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.
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SYTOX™ Green Nucleic Acid Stain - 5 mM Solution in DMSO
产品名称： SYTOX™ Green Nucleic Acid Stain - 5 mM Solution in DMSO
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...
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Premo™ FUCCI Cell Cycle Sensor (BacMam 2.0)
产品名称： Premo™ FUCCI Cell Cycle Sensor (BacMam 2.0)
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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CountBright™ Absolute Counting Beads, for flow cytometry
产品名称： CountBright™ Absolute Counting Beads, for flow cytometry
型号：
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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CellTrace™ CFSE Cell Proliferation Kit, for flow cytometry
产品名称： CellTrace™ CFSE Cell Proliferation Kit, for flow cytometry
型号：
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...
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CellTrace™ CFSE Cell Proliferation Kit - For Flow Cytometry
产品名称： CellTrace™ CFSE Cell Proliferation Kit - For Flow Cytometry
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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Click-iT™ EdU Pacific Blue™ Flow Cytometry Assay Kit
产品名称： Click-iT™ EdU Pacific Blue™ Flow Cytometry Assay Kit
型号：
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...
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Attune™ NxT Acoustic Focusing Cytometer, blue
产品名称： Attune™ NxT Acoustic Focusing Cytometer, blue
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
产品名称： Attune™ NxT Acoustic Focusing Cytometer, blue/red
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
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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