TGViewer
Channel Public Channel
生物医学科技前线

生物医学科技前线

@sci_feed

看看这世界生物医学科学又进步了多少？
友频 @CNSmydream
Open in Telegram
Subscribers
652
Photos
0
Videos
0
Links
5K

Showing posts older than #4091 · Back to latest

Older Posts 20 shown
Post #4090 27
英国剑龙化石重写鱼龙历史
英国的剑龙化石重写了鱼龙的历史，剑龙化石的发现帮助我们了解了鱼龙的演化过程，特别是在鱼龙群体消失和新群体出现的关键时期。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-24 20:50 GMT+8（北京时间）
#剑龙 #鱼龙 #化石 #剑龙化石 #鱼龙化石
ScienceDaily 190-million-year-old “Sword Dragon” fossil rewrites ichthyosaur history A newly identified ichthyosaur from the UK’s Jurassic Coast is rewriting part of the prehistoric playbook. Nicknamed the “Sword Dragon of Dorset,” the three-meter-long marine reptile lived during a poorly understood window of evolution when major ichthyosaur…
Post #4089 27
World leaders adopt a historic global declaration on noncommunicable diseases and mental health
Leaders from across the world at the Eightieth United Nations General Assembly (UNGA) have adopted the political declaration to combat noncommunicable diseases (NCDs)…
来源: WHO ｜ 阅读全文
发布时间: 2025-12-16 16:06 GMT+8（北京时间）
World Health Organization World leaders adopt a historic global declaration on noncommunicable diseases and mental health Leaders from across the world at the Eightieth United Nations General Assembly (UNGA) have adopted the political declaration to combat noncommunicable diseases (NCDs) and mental health challenges through a fully integrated approach. This is the outcome of…
Post #4088 25
手臂发育异常出生儿童脑部的惊人适应能力
一项研究利用成像技术研究手臂发育异常出生儿童大脑活动，结果显示大脑在帮助儿童适应周围世界方面表现出惊人的能力。该研究由剑桥大学和达勒姆大学的团队领导，研究结果发表在《自然通讯》上。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-24 18:00 GMT+8（北京时间）
#脑部适应 #手臂发育异常 #儿童大脑
Medicalxpress Children born with upper limb difference show the incredible adaptability of the young brain A unique study imaging brain activity in children born with upper limb difference—for example, one hand—has shown the amazing ability of the brain to adapt to compensate and support their daily lives. ...
Post #4087 25
早期健康饮食对终身脑健康有影响，新研究发现
研究发现，早期摄入不健康食物会导致脑部和进食行为的持久性变化，但肠道细菌可以帮助恢复健康饮食。研究人员发现，高脂高糖饮食在早期生活阶段可以导致脑部调节进食的持久性变化，即使停止不健康饮食并恢复正常体重，脑部调节进食的方式也会…
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-24 18:00 GMT+8（北京时间）
#脑健康 #饮食 #肠道细菌 #早期营养
Medicalxpress Early healthy eating shapes lifelong brain health, new research finds Eating unhealthy foods early in life leaves lasting brain and feeding changes, but gut bacteria can help restore healthy eating, a new University College Cork (UCC) research study finds. A high-fat, high-sugar ...
Post #4086 36
更努力地训练可能会改变你的肠道菌群
研究人员发现，高强度运动不仅会增强肌肉，还可能改变运动员的肠道菌群和重要物质的平衡。当训练量减少时，饮食质量下降，消化速度减慢，引发不同的微生物变化。这些隐藏的变化可能会影响性能，科学家们还在开始了解这些变化。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-24 12:45 GMT+8（北京时间）
#肠道菌群 #运动 #消化系统
ScienceDaily Training harder could be rewiring your gut bacteria Training harder may do more than build muscle—it could transform your gut. Researchers found that intense workouts change the balance of bacteria and important compounds in athletes’ digestive systems. When training loads dropped, diet quality slipped and…
Post #4085 23
美国大规模研究发现核电站附近癌症死亡率更高
一项涵盖全国的研究发现，靠近运营核电站的美国县癌症死亡率高于距离较远的县。研究人员分析了2000年至2018年间每个核电站和所有美国县的数据，调整了收入、教育、吸烟、肥胖、环境条件和医疗保健服务等因素。即使考虑了这些因素，靠近核电站…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-24 15:26 GMT+8（北京时间）
#核电站 #癌症 #死亡率 #研究
ScienceDaily Massive US study finds higher cancer death rates near nuclear power plants A sweeping nationwide study has found that U.S. counties located closer to operating nuclear power plants have higher cancer death rates than those farther away. Researchers analyzed data from every nuclear facility and all U.S. counties between 2000 and…
Post #4084 26
科学家培育细菌吃掉癌症肿瘤内部
研究人员正在培育细菌侵入肿瘤并从内部消耗它们。由于肿瘤核心缺乏氧气，它们是微生物生长的理想场所。团队添加了一种基因调整，帮助细菌在氧气暴露的边缘生存更长时间——但只有当足够的细菌存在时才会发生这种变化。这是一种精心编程的生物…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-24 16:41 GMT+8（北京时间）
#癌症 #细菌 #肿瘤 #基因工程
ScienceDaily Scientists engineer bacteria to eat cancer tumors from the inside out Researchers are engineering bacteria to invade tumors and consume them from the inside. Because tumor cores lack oxygen, they’re the perfect breeding ground for these microbes. The team added a genetic tweak that helps the bacteria survive longer near oxygen…
Post #4083 22
科学家逆转老化肌肉，发现意外的陷阱
一项来自加州大学洛杉矶分校的研究表明，老化的肌肉干细胞会积累一种会减缓修复但增强存活的蛋白质。这种蛋白质，称为NDRG1，起到制动作用，防止细胞在受伤后迅速激活。当研究人员在老年小鼠中阻止它，肌肉修复速度显著加快，但干细胞在时间推…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-24 12:02 GMT+8（北京时间）
#老化 #肌肉 #干细胞 #NDRG1 #存活权衡
ScienceDaily Scientists reverse muscle aging in mice and discover a surprising catch A UCLA study in mice reveals that aging muscle stem cells accumulate a protein that slows repair but boosts survival. This protein, NDRG1, acts like a brake, preventing cells from activating quickly after injury. When researchers blocked it in older mice…
Post #4082 49
一个基因可能解释大多数阿尔茨海默症病例
研究人员发现阿尔茨海默症可能由遗传因素驱动得更为深远，一个基因在其中扮演了重要角色。他们发现，包括曾被认为是中性的常见版本在内的十个病例中有九个可能与APOE基因有关。这一发现重新塑造了科学家对风险和预防的思考方式，也突出了针…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-23 23:16 GMT+8（北京时间）
#阿尔茨海默症 #基因 #遗传 #风险 #预防
ScienceDaily This one gene may explain most Alzheimer’s cases Alzheimer’s may be driven far more by genetics than previously thought, with one gene playing an outsized role. Researchers found that up to nine in ten cases could be linked to the APOE gene — even including a common version once considered neutral. The…
Post #4081 43
为什么老年人会跌倒？研究指出：小脑神经元激发率的变化是关键
一项麦吉尔大学的研究发现，小脑中Purkinje细胞的神经元活动下降与老年人运动能力下降有关，包括步态、平衡和灵活性。虽然众所周知，这些能力会随着年龄的增长而减退，但这项研究首次指出，Purkinje细胞的变化是导致这一下降的关键，并且可…
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-24 05:36 GMT+8（北京时间）
#小脑 #神经元 #老年人 #运动能力 #Purkinje细胞
Medicalxpress Why do falls rise with age? Study points to cerebellar neuron firing A new McGill University study has found a direct link between age-related declines in neuron activity in the cerebellum and worsening motor skills, including gait, balance and agility. While it is well ...
Post #4080 39
脑部可能在睡眠中加强癫痫发作
研究指出，脑部在癫痫发作后进入深度睡眠状态，类似于记忆存储，这种现象可能会持续到第二天的睡眠，可能导致癫痫病情加重。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-24 04:30 GMT+8（北京时间）
#脑部 #癫痫 #睡眠
Medicalxpress Brain may reinforce seizures during sleep, suggests study The brain may inadvertently "learn" to have seizures by treating them like important memories to be stored, according to new research from Mayo Clinic. The study, published in the Journal of Neuroscience, ...
Post #4079 40
科学家将人类与其他哺乳动物的婚姻模式进行排名，人类独特的配偶忠诚性跃居前列
一项新研究表明，人类属于“忠诚伴侣俱乐部”的精英行列，远远高于黑猩猩。通过比较不同物种和人类文化中的亲属关系，研究人员发现，人类的长期伴侣关系的普遍性远远高于其他哺乳动物。即使那些允许多配偶的社会也表现出比大多数哺乳动物更高的…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-23 12:58 GMT+8（北京时间）
#人类 #忠诚伴侣 #哺乳动物 #婚姻模式 #社会成功
ScienceDaily Scientists ranked monogamy across mammals and humans stand out A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to chimpanzees. By comparing full and half siblings across species and human cultures, researchers found that long-term pair bonding is unusually…
Post #4078 21
欧罗巴冰盖可能正在补给潜在的生命支持水洋
科学家发现，盐度高、富含营养的表面冰可以变得足够重，能够穿过欧罗巴的冰壳，向下方的水洋输送必需的营养物质。这种过程快、可重复，并且在多种条件下都有效。它为欧罗巴可能支持生命提供了一个有希望的新解释。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-23 19:14 GMT+8（北京时间）
#欧罗巴 #冰盖 #水洋 #生命支持 #营养物质
ScienceDaily Europa’s ice may be feeding a hidden ocean that could support life Europa’s subsurface ocean might be getting fed after all. Scientists found that salty, nutrient-rich surface ice can become heavy enough to break free and sink through Europa’s icy shell, delivering essential ingredients to the ocean below. The process is…
Post #4077 24
磁共振成像期间神经刺激的警告：研究人员指出可能的风险
休斯顿大学工程教授警告称，用于治疗癫痫、抑郁症和炎症性疾病的植入式电极可能在磁共振成像扫描期间不小心刺激患者的神经。这些电极刺激迷走神经，金属质地，位于神经束附近，因此在磁共振环境中存在神经刺激的风险，尤其是由于快速切换的梯…
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-24 03:10 GMT+8（北京时间）
#磁共振成像 #神经刺激 #植入式电极
Medicalxpress Professor warns of nerve stimulation during MRI A University of Houston engineering professor is warning that implanted cuff electrodes—widely used in therapy for epilepsy, depression and inflammatory disorders—could trigger unintended nerve stimulation ...
Post #4076 20
胎儿暴露于“永恒化学品”的次数比科学家们知道的要多得多
研究人员使用胎盘血液进行高级化学检测，检测出42种不同类型的PFAS化合物，包括标准检测不常检查的许多化合物。这些持久性化学品在非粘性煮锅、食品包装和抗污染织物中普遍存在，随着时间的推移，它们可以在人体中积累。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-23 20:29 GMT+8（北京时间）
#PFAS #胎儿暴露 #化学品 #胎盘血液
ScienceDaily Babies exposed to far more “forever chemicals” before birth than scientists knew Babies born in the early 2000s were exposed in the womb to far more “forever chemicals” than researchers once realized, according to a new study. By using advanced chemical screening on umbilical cord blood, scientists detected 42 different PFAS compounds…
Post #4075 72
专家鸟类观察者更紧凑的注意力脑区，研究发现
研究表明，随着个体学习和获得新技能，脑结构和活动会发生变化。但是，更复杂的技能涉及多个学习过程如何影响大脑？在JNeurosci杂志上发表的一项研究中，贝克雷斯特医院的Erik Wing领导的研究人员将29名专家鸟类观察者与29名年龄和性别匹…
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-24 02:00 GMT+8（北京时间）
#鸟类观察 #专家 #注意力 #脑区
Medicalxpress Expert birders show more compact attention brain areas, study finds Research shows that as individuals learn and acquire a new skill, their brain structure and activity changes. But how do more complex skills involving multiple learning processes influence the brain? ...
Post #4074 118
脑膜的血液循环不仅仅是排水：脑免疫和液体流动的调节
美国国家神经疾病研究所的研究人员发现，脑膜的血液循环不仅仅是排水，还有调节脑免疫和液体流动的作用。他们发现脑膜的血管具有活跃的收缩和扩张功能，能够通过半透膜交换液体，并协调免疫细胞的运动，支持脑膜的抗病毒防御。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-24 02:40 GMT+8（北京时间）
#脑膜 #血液循环 #免疫调节 #液体流动
Medicalxpress Not just drainage: Dural venous sinuses actively regulate brain immunity and fluid flow, study finds National Institute of Neurological Disorders and Stroke investigators at the National Institutes of Health traced meningeal immune activity to dural venous sinuses that actively constrict and dilate, ...
Post #4073 130
斯坦福医学院科学家研发全民鼻腔疫苗，预防COVID、流感和肺炎等疾病
斯坦福医学院的科学家们研发了一种全民疫苗，能够预防COVID-19、流感、细菌性肺炎和常见的过敏原等疾病。这种疫苗通过增强肺部的免疫系统，保持其高度警惕状态数月。实验结果表明，疫苗在小鼠体内显著降低病毒水平，预防严重疾病，并阻止过敏…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-23 21:45 GMT+8（北京时间）
#斯坦福医学院 #全民疫苗 #鼻腔疫苗 #COVID19 #流感
ScienceDaily Scientists create universal nasal spray vaccine that protects against COVID, flu, and pneumonia Scientists at Stanford Medicine have unveiled a bold new kind of “universal” vaccine that could one day protect against everything from COVID-19 and the flu to bacterial pneumonia and even common allergens. Instead of targeting a specific virus or bacterium…
Post #4072 125
Less sugar as a baby, fewer heart attacks as an adult
People whose sugar intake was restricted before birth and in early childhood had markedly lower rates of heart disease later in life. Compared to those never exposed …
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-23 22:21 GMT+8（北京时间）
ScienceDaily Less sugar as a baby, fewer heart attacks as an adult People whose sugar intake was restricted before birth and in early childhood had markedly lower rates of heart disease later in life. Compared to those never exposed to rationing, their risks of heart attack, stroke, heart failure, and cardiovascular death…
Post #4071 100
压力下大脑如何抑制瘙痒
印度科学研究所的研究人员在脑中发现了涉及瘙痒和压力的复杂关系的神经回路。他们的研究结果发表在Cell Reports上，揭示了在压力下激活的特定神经元如何直接调节瘙痒。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-24 01:16 GMT+8（北京时间）
#印度科学研究所 #神经回路 #瘙痒 #压力
Medicalxpress How the brain suppresses itch during stress Researchers at the Indian Institute of Science (IISc) have mapped a neural circuit in the brain involved in the complex relationship between itch and stress. Their findings, published in Cell Reports, ...
Older posts →
Threads Profile ViewerView any public Threads profile without an account.Open ThreadLook →Writing with AI? Make it sound human.Metric37 rewrites AI drafts so they read naturally. Free AI detector, 1,500 words free.Try Metric37 →