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酸奶对机体健康有什么好处？
酸奶对机体健康有什么好处？
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 ...
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抗高血脂药物诱导自噬为治疗 AD 带来新思路
抗高血脂药物诱导自噬为治疗 AD 带来新思路
2019 - 05 - 06
来源： 中国科学报年初，一部电视剧《都挺好》火遍全国，大结局时剧中一直让人恨得牙痒痒的 “作爹” 苏大强，因患上了阿尔茨海默氏症（AD，俗称老年痴呆症）而成功“洗白”，惹出了不少人的眼泪。阿尔茨海默氏症离我们并不遥远，由它引发的故事也是常有耳闻，大多伴随着无奈与辛酸。随着全球老龄化进程的加快，愈来愈多的阿尔茨海默氏症患者将给家属及社会带来沉重的负担。根据国际阿尔茨海默氏病协会的统计数据，2018 年全世界有 5000 万老人患有痴呆，每 3 秒钟，就有 1 位患者产生；中国是阿尔茨海默氏病的重灾区，估计有 1000 万患者。关于阿尔茨海默氏症发病机制和治疗方法的研究一直都是科研界关注的重点之一。近日，中国科学院昆明动物研究所姚永刚课题组在阿尔茨海默氏症的治疗研究上取得重要进展，该研究阐明了核受体过氧化物酶体α激动剂吉非罗齐和匹立尼酸的抗阿尔茨海默氏症分子机制。相关论文在线发表于《自噬》（Autophagy）杂志上。诱导自噬，清除 Aβ作为发生在老年前期与老年期的一种常见的神经退行性脑病，阿尔茨海默氏症是最常见的老年痴呆类型，其发病率随着年龄增长而显著增加。其临床表现为病人渐进性记忆丧失、认知能力下降并伴有焦虑等其他精神相关症状。对于阿尔茨海默氏症的发病机制，现有很多学说，其中影响最广泛的有β- 淀粉样蛋白（β-amyloid，Aβ）瀑布理论，认为 Aβ的生成与清除失衡是导致神经元变...
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肠道微生态产业发展现状分析
肠道微生态产业发展现状分析
2019 - 09 - 05
2016年《消失的微生物》一书问世，肠道微生态研究走入大众视野，目前全球范围内针对微生物与肥胖、哮喘、过敏、糖尿病、肿瘤、精神类疾病的研究正逐步开展。一、肠道微生物概况人体是由自身细胞及共生的大量微生物细胞所共同组成的复杂共生生命体。目前研究认为人体肠道内聚集的微生物数目可达1012~1014个，是人体自身细胞数目的10倍，微生物包含的基因数目超过987万个，人类自身基因数只有2万个左右，是人体自身基因数目的几百倍，这些后天获得的共生菌群及其所携带的遗传及分子信息即可称为微生物组。（一）人体肠道微生物是如何建立的？有研究表明，人体在出生成长过程中，主要在两个重要的环节、以两种不同的方式实现对肠道菌群的塑造。第一个环节是在分娩过程，婴儿会从母亲产道获得健康的肠道菌群，剖腹产和孕期抗生素则会改变正常婴儿菌群的建立。另一个环节则是出生后的哺乳及断奶后的膳食干预。在女性乳腺中存在着乳酸菌等系列微生物，这些微生物在哺乳过程中进入并定植于婴儿肠道。随着哺乳期的结束，日趋丰富的膳食外源营养物质则长期调节着人体肠道微生物中的的变化。（二）肠道微生物对人体健康有何影响？肠道菌群与人体互利共生，依靠人体没有消化的食物残渣和肠道分泌的黏液和脱落的死细胞作为营养来维持很高的种群水平。活跃生长的肠道菌群会产生大量的活性物质，同时包括短链脂肪酸、维生素和抗氧化等有益健康的产物，以及神经毒素、致癌物质和免疫毒素...
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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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EVOS™ Vessel Holder, universal
产品名称： EVOS™ Vessel Holder, universal
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 has a 25.4 mm opening and accommodates most vessel types. 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 samp...
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EVOS™ Vessel Holder, Greiner T-75 flask
产品名称： EVOS™ Vessel Holder, Greiner T-75 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 T-75 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 ves...
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EVOS™ Vessel Holder, Hemocytometer
产品名称： EVOS™ Vessel Holder, Hemocytometer
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 a hemocytometer. 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 vessel hol...
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EVOS™ Vessel Holder, Nunc™ T-75 flask
产品名称： EVOS™ Vessel Holder, Nunc™ T-75 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 Nunc® T-75 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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