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看看这世界生物医学科学又进步了多少?
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Post #4250 22
照顾孙子孙女有助于减缓认知衰退
研究发现,照顾孙子孙女的祖父母在记忆和语言能力方面的表现优于不提供照顾的祖父母。这种效果不依赖于他们多频繁地帮助还是提供什么样的照顾。作为照顾者本身似乎最重要。
来源: ScienceDaily | 阅读全文
发布时间: 2026-01-29 16:06 GMT+8(北京时间)
#脑健康 #照顾孙子孙女 #认知衰退
ScienceDaily Helping with grandkids may slow cognitive decline Helping care for grandchildren may offer an unexpected boost to brain health later in life. Researchers found that grandparents who provided childcare scored higher on memory and verbal skills than those who did not. The effect did not depend on how often…
Post #4249 18
一种简单的血液测试可能在症状出现前多年检测出帕金森病
瑞典和挪威的科学家们找到了一个有希望的方法,能够在帕金森病最具破坏性的症状出现前多年甚至几十年就检测出该病。通过检测与细胞应对应激和修复DNA有关的微小生物信号,研究团队找到了帕金森病在疾病早期悄悄留下的可测量的指纹。
来源: ScienceDaily | 阅读全文
发布时间: 2026-01-29 22:26 GMT+8(北京时间)
#帕金森病 #早期诊断 #血液测试 #细胞应激 #DNA修复
ScienceDaily A simple blood test could spot Parkinson’s years before symptoms Scientists in Sweden and Norway have uncovered a promising way to spot Parkinson’s disease years—possibly decades—before its most damaging symptoms appear. By detecting subtle biological signals in the blood tied to how cells handle stress and repair DNA…
Post #4248 20
为什么小费越来越高,并且可能不会改善服务
研究表明,人们小费的原因不仅仅是为了奖励好服务,而是因为社会压力。有些人是出于真诚的感谢,而其他人只是遵循惯例。然而,值得注意的是:那些真正重视好服务的人往往比平均值高出更多的小费,而其他人则会调整到相应的水平。
来源: ScienceDaily | 阅读全文
发布时间: 2026-03-02 16:06 GMT+8(北京时间)
#小费 #服务 #社会压力
ScienceDaily Why tipping keeps rising and may not improve service Why do we tip—even when we know we’ll never see the server again? New research suggests it’s not just about rewarding good service, but about social pressure. Some people tip out of genuine appreciation, while others simply follow the norm. But here’s the…
Post #4247 18
无线视网膜植入器帮助失明患者重见光明
一项国际临床试验显示,一个微小的无线植入器可以帮助因老年相关性黄斑病变失明的患者重见光明。超过80%的参与者在植入器的帮助下恢复了中心视力,许多人甚至能够再次阅读字母和单词。该设备通过在视网膜上植入一个2×2毫米的植入器,来替换…
来源: ScienceDaily | 阅读全文
发布时间: 2026-03-02 20:25 GMT+8(北京时间)
#视网膜植入器 #失明 #老年相关性黄斑病变
ScienceDaily Wireless retinal implant helps blind patients see again A tiny wireless implant is giving new hope to people blinded by advanced age-related macular degeneration. In a major international clinical trial, more than 80% of participants regained meaningful central vision, with many able to read letters and even words…
Post #4246 17
ChatGPT作为治疗师?布朗大学新研究揭示严重的伦理风险
一项来自布朗大学的研究指出,即使被指示模仿受过训练的治疗师,ChatGPT和其他AI聊天机器人也会违反心理健康护理的核心伦理标准。研究人员在与同行顾问和执业心理学家的对比评估中发现了15个不同的伦理风险,包括处理危机情况不当、强化有…
来源: ScienceDaily | 阅读全文
发布时间: 2026-03-02 23:04 GMT+8(北京时间)
#ChatGPT #AI #伦理风险 #心理健康护理
ScienceDaily ChatGPT as a therapist? New study reveals serious ethical risks As millions turn to ChatGPT and other AI chatbots for therapy-style advice, new research from Brown University raises a serious red flag: even when instructed to act like trained therapists, these systems routinely break core ethical standards of mental health…
Post #4245 20
阿塔卡马大沙漠惊奇:世界上最干旱的沙漠中充满了隐藏的生命
在阿塔卡马大沙漠,即使是最干旱的地区,生活在土壤中的微小的线虫也呈现出令人惊讶的多样性。科学家发现,生物多样性随着湿度的增加而增加,海拔的变化决定了哪些物种能够存活。在最极端的地区,许多线虫通过无性生殖来繁殖,这可能是一种适应…
来源: ScienceDaily | 阅读全文
发布时间: 2026-03-02 23:49 GMT+8(北京时间)
#阿塔卡马大沙漠 #线虫 #生物多样性 #干旱环境
ScienceDaily Atacama surprise: The world’s driest desert is teeming with hidden life Even in the ultra-dry Atacama Desert, tiny soil-dwelling nematodes are thriving in surprising diversity. Scientists found that biodiversity increases with moisture and altitude shapes which species survive. In the most extreme zones, many nematodes reproduce…
Post #4244 21
人工甜味剂的期望如何影响其口味
研究人员从莱顿大学的Elena Mainetto、牛津大学的Margaret Westwater和剑桥大学的同事们,探索了是否可以通过对饮料的期望来改变人们对含糖或人工甜味剂饮料的喜爱程度。该研究发表在JNeurosci上。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-03 02:00 GMT+8(北京时间)
#人工甜味剂 #期望 #口味 #饮料
Medicalxpress How expectations about artificial sweeteners may affect their taste Elena Mainetto, from Radboud University, Margaret Westwater, from the University of Oxford, and colleagues at the University of Cambridge explored whether they could change how much people enjoy beverages ...
Post #4243 26
探索为什么有些人更喜欢酒精而非其他奖励
研究人员使用大鼠模型探索了酒精依赖患者优先选择酒精而非替代奖励的脑部机制,结果表明脑部某区域在决策过程中起着关键作用。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-03 02:00 GMT+8(北京时间)
#酒精依赖 #决策 #脑部机制
Medicalxpress Exploring why some people may prefer alcohol over other rewards People with alcohol use disorders tend to prioritize alcohol over alternative rewards, and the neural underpinnings of this are unclear. In a study appearing in JNeurosci, researchers led by Nathan Marchant, ...
Post #4242 34
全国式摩托车头盔使用法令废除与车祸相关的住院费用增加26%
一项研究发表在《美国外科医学院杂志》上,研究人员使用2012年密歇吉州废除全国式摩托车头盔使用法令的自然实验发现,政策变动导致摩托车车祸患者平均住院费用增加了26%。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-03 02:30 GMT+8(北京时间)
#摩托车头盔 #车祸 #医疗费用
Medicalxpress Repeal of universal motorcycle helmet laws linked to 26% increase in crash-related hospital costs Repealing universal motorcycle helmet laws is associated with a significant increase in crash-related inpatient costs, according to a study published in the Journal of the American College of Surgeons. ...
Post #4241 39
一项雄心勃勃的计划可能最终治愈1型糖尿病
研究人员正在开发一种两部分的糖尿病1型治疗方案:实验室制备的胰岛素产生细胞配备了自定义的免疫细胞,以保护它们。目标是停止免疫系统破坏移植的细胞——不使用免疫抑制剂。该团队得到了100万美元的资金支持,希望能够创造出一种可用的治疗…
来源: ScienceDaily | 阅读全文
发布时间: 2026-03-03 00:49 GMT+8(北京时间)
#糖尿病 #免疫系统 #胰岛素 #细胞移植
ScienceDaily A bold new plan could finally cure type 1 diabetes Researchers are developing a two-part therapy for type 1 diabetes: lab-made insulin-producing cells paired with custom-engineered immune cells that protect them. The goal is to stop the immune system from destroying transplanted cells — without using immunosuppressive…
Post #4240 25
年轻癌症幸存者面临着更快的衰老和可能的早期痴呆
研究表明,年轻癌症幸存者可能会在细胞和脑部层面上经历更快的衰老。他们往往表现出比实际年龄更大的生物学年龄,化疗加剧了这一过程。这种加速的衰老与记忆力和注意力受损有关,这可能会影响教育和职业成就。值得鼓舞的是,科学家认为,健康习…
来源: ScienceDaily | 阅读全文
发布时间: 2026-03-03 01:11 GMT+8(北京时间)
#癌症 #衰老 #痴呆 #化疗 #健康习惯
ScienceDaily Young cancer survivors face faster aging and possible early dementia Surviving cancer at a young age may come with an unexpected cost: faster aging at both the cellular and brain levels. Researchers found that survivors often show signs of being biologically older than their actual age, with chemotherapy accelerating the process…
Post #4239 25
学习放慢脚步:新研究探索冷水游泳的益处
在世界上最幸福的国家芬兰,超过720,000人(约每8人中有1人)是常规的冷水游泳者,他们每周至少2-3次将自己投入15°C(59°F)以下的水中。新研究探索了这种习惯如何使个人将最初的不适转化为平静和存在感,提供了数字狂热的意外解药。该研究…
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-03 01:40 GMT+8(北京时间)
#冷水游泳 #放慢脚步 #幸福感 #存在感
Medicalxpress Learning to slow down: Cold-water swimming benefits explored in new study Taking a freezing dip in a lake or the sea is a valued well-being practice in the world's happiest country. In Finland, over 720,000 people (about 1 in every 8) are regular cold-water swimmers, voluntarily ...
Post #4238 27
发育中的大脑如何自我组织?细胞系可能指导神经元放置
研究人员发现,发育中的大脑通过细胞系的线性关系来自我组织,研究结果可能对生物学和人工智能有重大影响。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-03 00:00 GMT+8(北京时间)
#大脑 #细胞系 #神经元 #发育 #自我组织
Medicalxpress How does a developing brain self-organize? Cell lineage may guide neuron placement Your brain begins as a single cell. When all is said and done, it will house an incredibly complex and powerful network of some 170 billion cells. How does it organize itself along the way? Cold Spring ...
Post #4237 42
低剂量锂可能减缓言语记忆下降,探索性临床试验表明
一项来自匹兹堡大学的探索性临床试验表明,低剂量口服锂可能有助于缓慢下降的言语记忆力,特别是在那些有阿尔茨海默病标志性生物标志物之一——β-淀粉样蛋白证据的老年人中。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-03 00:00 GMT+8(北京时间)
#锂 #言语记忆 #阿尔茨海默病 #认知功能下降
Medicalxpress Low-dose lithium may slow verbal memory decline, exploratory clinical trial suggests Lithium—a decades-old treatment for bipolar disorder—may hold potential neuroprotective benefits beyond mood stabilization. An exploratory clinical trial from the University of Pittsburgh suggests ...
Post #4236 47
线粒体狂热:超载细胞能让你活得更久吗?
线粒体是细胞的能量产生中心,近期在长寿科学领域中备受关注。一些营养补充剂,如NAD⁺,被宣传为能提高代谢率和延缓衰老的线粒体专注的必需品。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-03 00:40 GMT+8(北京时间)
#线粒体 #长寿科学 #NAD
Medical Xpress Mitochondria mania: Can supercharging your cells help you live longer? "Longevity science" is on the come up—and "mitochondria" appears to be its newest mascot. The cell's energy-producing center is the talk of TikTok, wellness clinics and newsletters focused on longevity. ...
Post #4235 44
超声波的传递方式对脑血屏障的影响
研究表明,超声波与微泡结合用于安全可逆地打开脑血屏障(BBB)治疗脑瘤和神经退行性疾病。虽然人们关注了超声波的声压和总暴露时间,但人们对超声波传递的时间结构如何影响微泡活动知之甚少。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-02 23:10 GMT+8(北京时间)
#超声波 #微泡 #脑血屏障
Medicalxpress How ultrasound is delivered matters when opening the blood-brain barrier Focused ultrasound combined with microbubbles is increasingly being used to safely and reversibly open the blood-brain barrier (BBB) for the treatment of brain tumors and neurodegenerative disorders. ...
Post #4234 63
慢性乙型肝炎患者肝癌风险高的生物标志物被识别
慢性乙型肝炎是一种影响肝脏的病毒性疾病,极大地增加了肝硬化和肝细胞癌(HCC,肝癌)的风险。它影响了全球约2960万人。乙型肝炎是可治疗的;随着核苷酸类似物(NA)疗法的出现,病毒复制被抑制,减少了疾病进展的风险。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-02 22:00 GMT+8(北京时间)
#慢性乙型肝炎 #肝癌 #肝硬化 #HCC
Medicalxpress Biomarkers indicating higher liver cancer risk in chronic hepatitis B patients identified Chronic hepatitis B is a viral disease that affects the liver and greatly increases the risks of liver cirrhosis and hepatocellular cancer (HCC, liver cancer). It affects approximately 296 million people ...
Post #4233 65
长寿野鼠可能带来健康长寿的秘密
一些动物在健康方面具有非凡的优势,例如鸵鸟对病毒有高度的抵抗力,而鲨鱼罕见地发展为癌症。裸鼠和北极鲸等物种生活了令人惊讶的长时间,几十年和几百年。研究人员发现了一种野生鼠种,它的寿命可能比人类长得多。研究人员正在研究这种鼠种…
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-02 22:00 GMT+8(北京时间)
#长寿 #健康 #野生鼠 #老龄化
Medicalxpress Long-living wild mouse may hold secret to healthy aging When it comes to health, some of our animal neighbors have extraordinary advantages. Ostriches, for example, are highly resistant to viruses, while sharks rarely develop cancer. And species like naked ...
Post #4232 51
GLP-1药物与偏头痛急诊需求减少
一项初步研究发现,患有慢性偏头痛的人,服用用于治疗糖尿病和减重的GLP-1受体激动剂,可能会减少急诊室就诊和住院次数,减少用于控制和预防偏头痛发作的药物需求。
来源: Medical Xpress | 阅读全文
发布时间: 2026-03-02 20:20 GMT+8(北京时间)
#GLP1 #偏头痛 #急诊 #糖尿病 #减重
Medicalxpress GLP-1 drugs associated with reduced need for emergency care for migraine For people with chronic migraine, taking glucagon-like peptide-1 receptor agonists, or GLP-1 drugs, for other conditions such as diabetes and weight loss, was associated with fewer emergency department ...
Post #4231 37
科学家发现调节器让器官保持健康的基因switch
科学家们发现了一种强大的基因switch,它帮助身体的免疫细胞成熟并保持器官健康。这种switch称为MafB,它指导未成熟的前体细胞成长为巨噬细胞,巨噬细胞是清除病原体、清除废物、回收铁和支持组织功能的清洁和修复小队。当MafB缺失时,这些…
来源: ScienceDaily | 阅读全文
发布时间: 2026-03-02 08:19 GMT+8(北京时间)
#基因switch #MafB #巨噬细胞 #器官健康
ScienceDaily Scientists discover the genetic switch that keeps your organs healthy Scientists have uncovered a powerful genetic switch that helps some of the body’s most important immune cells grow up properly and keep our organs healthy. The switch, called MafB, guides immature precursor cells as they develop into macrophages, the body’s…
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