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Showing posts older than #4611 · Back to latest

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Post #4610 123
Scientists discover hidden gut signals that could detect cancer early
A new study reveals that gut bacteria and metabolites may hold the key to detecting serious digestive diseases earlier and more easily. Using AI, scientists found tha…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-05 11:06 GMT+8（北京时间）
ScienceDaily Scientists discover hidden gut signals that could detect cancer early A new study reveals that gut bacteria and metabolites may hold the key to detecting serious digestive diseases earlier and more easily. Using AI, scientists found that biomarkers linked to one condition can often predict others, showing these diseases are…
Post #4609 159
甘蔗蛋白制成的人工唾液保护牙齿抵抗酸和蛀牙
科学家们使用甘蔗蛋白创造了人工唾液，这种唾液可以保护牙齿并与细菌作斗争。关键成分CANECPI-5直接与牙釉质结合，形成抵御酸性物质导致蛀牙的防护屏障。初步试验表明，当与氟化物和西利托尔联合使用时，效果更好，显著减少牙齿损伤。这种创…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-05 12:38 GMT+8（北京时间）
#人工唾液 #甘蔗蛋白 #牙齿保护 #酸性物质 #蛀牙
ScienceDaily Artificial saliva made from sugarcane protein protects teeth from acid and decay Scientists have created an artificial saliva using a sugarcane protein that can protect teeth and fight bacteria. The key ingredient, CANECPI-5, binds directly to enamel, forming a shield against acids that cause decay. Early tests show it works even better…
Post #4608 171
One simple daily change that could slash depression risk
Swapping just an hour of TV a day for something more active could significantly lower the risk of developing major depression—especially in middle age. A large Dutch …
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-12 15:08 GMT+8（北京时间）
ScienceDaily One simple daily change that could slash depression risk Swapping just an hour of TV a day for something more active could significantly lower the risk of developing major depression—especially in middle age. A large Dutch study tracking more than 65,000 adults over four years found that replacing 60 minutes of…
Post #4607 152
5周脑力训练可能保护老年人20年不患痴呆症
一项研究发现，65岁以上老年人接受5到6周的适应性“速度处理”训练后，甚至在20年后仍然显著降低患痴呆症，包括阿尔茨海默病的风险。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-12 11:15 GMT+8（北京时间）
#痴呆症 #阿尔茨海默病 #脑力训练
ScienceDaily Just 5 weeks of brain training may protect against dementia for 20 years A simple brain-training program that sharpens how quickly older adults process visual information may have a surprisingly powerful long-term payoff. In a major 20-year study of adults 65 and older, those who completed five to six weeks of adaptive “speed…
Post #4606 113
Scientists create “smart” DNA drug that targets cancer cells with extreme precision
Scientists have created a programmable drug system that can zero in on cancer cells with unprecedented accuracy. Built from synthetic DNA, it only activates when it d…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-02 16:27 GMT+8（北京时间）
ScienceDaily Scientists create “smart” DNA drug that targets cancer cells with extreme precision Scientists have created a programmable drug system that can zero in on cancer cells with unprecedented accuracy. Built from synthetic DNA, it only activates when it detects a precise combination of tumor markers, preventing damage to healthy tissue. The system…
Post #4605 98
陨石撞击可能点燃了地球生命的火花，科学家说
科学家认为，陨石撞击可能通过产生热化学丰富的环境来促进地球早期生物的发展。这些撞击生成的水热系统可能持续数千年，足以让生命的基本组成部分形成。科学家现在认为，这些环境在早期地球上可能是普遍存在的，从而成为生命起源的强有力候选…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-04 10:44 GMT+8（北京时间）
#陨石撞击 #生命起源 #早期地球 #水热环境
ScienceDaily Meteor impacts may have sparked life on Earth, scientists say Asteroid impacts may have helped kick-start life on Earth by creating hot, chemical-rich environments ideal for early biology. These impact-generated hydrothermal systems could have lasted thousands of years—long enough for life’s building blocks to form.…
Post #4604 110
科学家揭示新型降压药物：在其他治疗无效时有效
科学家们研发了一种名为baxdrostat的新药，通过减少体内盐和水的储存，有效降低了高血压患者的血压，降低了心脏病发作、中风和肾脏疾病的风险。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-04 11:38 GMT+8（北京时间）
#baxdrostat #高血压 #降压药物
ScienceDaily Scientists reveal new blood pressure treatment that works when others fail A new pill called baxdrostat is showing strong results in lowering dangerously high blood pressure in people who don’t respond to standard treatments. In a large global trial, patients saw their blood pressure drop by nearly 10 mmHg, a meaningful reduction…
Post #4603 85
被忽视的脑细胞可能控制恐惧和PTSD
研究人员发现星形胶质细胞不仅仅是脑中的“支持细胞”，而是参与恐惧记忆的关键角色。它们通过与神经元实时相互作用，帮助形成、回忆和弱化恐惧反应。改变星形胶质细胞的活动直接影响恐惧记忆的强度。这一突破可能导致焦虑相关疾病的全新治疗方…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-04 19:47 GMT+8（北京时间）
#星形胶质细胞 #恐惧记忆 #PTSD #焦虑相关疾病
ScienceDaily These overlooked brain cells may control fear and PTSD Astrocytes, once thought to be mere brain “support cells,” are now revealed to be key players in fear memory. Researchers found they actively help form, recall, and weaken fear responses by interacting with neurons in real time. Changing astrocyte activity…
Post #4602 125
美国大部分州都在变暖，但不是你想的那样
研究发现美国各州的变暖趋势不均匀，虽然只有大约一半的州平均温度在上升，但大多数州都在特定方面变暖，如更高的高温或更温暖的低温。这些隐藏的变化随着地区不同而有所不同，西部地区见证了更极端的热浪，而北部地区则失去了寒冷的极端值。…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-04 20:25 GMT+8（北京时间）
#气候变化 #美国 #温度变化 #地区差异
ScienceDaily Most U.S. states are warming but not in the way you think Warming across the U.S. is far more uneven than it looks at first glance. While only about half of states show rising average temperatures, most are heating up in specific ways—like hotter highs or warmer lows. These hidden shifts vary by region, with the…
Post #4601 126
Binge drinking just once a month may triple your risk of liver scarring
Many people think that occasional binge drinking is harmless if they otherwise drink in moderation, but new research suggests that assumption may be dangerously wrong…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-04 20:29 GMT+8（北京时间）
ScienceDaily Binge drinking just once a month may triple your risk of liver scarring Many people think that occasional binge drinking is harmless if they otherwise drink in moderation, but new research suggests that assumption may be dangerously wrong. A large U.S. study found that people with metabolic dysfunction–associated steatotic liver…
Post #4600 122
为什么流感和新冠会对老年人造成如此大的伤害？
研究人员发现，老化的肺部可能是流感和新冠病毒对老年人造成严重威胁的原因。研究人员发现，某些肺部细胞会触发过度的免疫反应，导致炎症细胞聚集，进而损害肺组织。实验表明，在激活老化相关信号后，年轻小鼠的肺部会表现出老化的特征，导致严…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 12:20 GMT+8（北京时间）
#流感 #新冠 #老化 #免疫反应 #肺部损害
ScienceDaily Scientists discover why flu and COVID hit older adults so hard A new study reveals that aging lungs may play a major role in why flu and COVID can become so dangerous for older adults. Researchers found that certain lung cells can trigger an exaggerated immune response, creating clusters of inflammatory cells that end…
Post #4599 100
奇特的“大象皮”岩石揭示古老的深海生命
科学家们在摩洛哥发现了一种奇特的褶皱状岩石，这让他们重新思考了古老微生物的栖息地。这些微生物可能在深海中生存，而不是浅水中，受到海底滑坡带来的化学物质的喂养。这一发现表明，早于预期的暗色富营养环境中存在了繁荣的生态系统。它还…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 14:28 GMT+8（北京时间）
#深海 #古老微生物 #海底滑坡 #化石
ScienceDaily Strange “elephant skin” rocks reveal ancient life in the dark ocean A puzzling wrinkled rock formation in Morocco has led scientists to rethink where ancient microbes could live. Instead of shallow, sunlit waters, these microbes may have thrived deep in the ocean, fueled by chemicals delivered by underwater landslides. The…
Post #4598 112
A gene mutation may trap the brain in the wrong reality in schizophrenia patients
A newly identified gene mutation may help explain why schizophrenia patients struggle to update their understanding of reality. The mutation disrupts a brain circuit …
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 15:10 GMT+8（北京时间）
ScienceDaily A gene mutation may trap the brain in the wrong reality in schizophrenia patients A newly identified gene mutation may help explain why schizophrenia patients struggle to update their understanding of reality. The mutation disrupts a brain circuit involved in flexible decision-making, causing mice to stick with outdated choices even when…
Post #4597 93
古老的蜜蜂在洞穴中发现的化石骨骼中筑巢
在海地岛上的一个洞穴中，数千年前发生了一系列罕见的事件，留下了一份科学宝藏：蜜蜂在化石骨骼中筑巢。巨大的夜猫儿将猴子类动物的尸体带入洞穴，随后沉积在富含泥土的洞穴中，形成了一个奇特的地下环境。之后，挖掘蜂利用软泥并重复利用化石…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 16:17 GMT+8（北京时间）
#古老的蜜蜂 #化石骨骼 #洞穴 #蜂巢
ScienceDaily Ancient bees found nesting inside fossil bones in rare cave discovery Thousands of years ago in a cave on Hispaniola, an unusual chain of events left behind a rare scientific treasure: bees nesting inside fossilized bones. After giant barn owls repeatedly brought prey like hutias into the cave, their remains accumulated in…
Post #4596 98
Deafness reversed: One injection restores hearing in just weeks
A new gene therapy is giving people born deaf the chance to hear, often within just weeks. In a small but groundbreaking study, researchers delivered a working copy o…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 16:50 GMT+8（北京时间）
ScienceDaily Deafness reversed: One injection restores hearing in just weeks A new gene therapy is giving people born deaf the chance to hear, often within just weeks. In a small but groundbreaking study, researchers delivered a working copy of a key hearing gene directly into the inner ear using a single injection. All ten patients…
Post #4595 127
5天快速减轻克罗恩病症状的饮食方案
研究人员发现，仅仅5天一次的极低卡路里、植物性饮食方案，能够显著改善克罗恩病患者的症状，并降低该病的生物学标志物。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 16:55 GMT+8（北京时间）
#克罗恩病 #快速减轻症状 #低卡路里饮食
ScienceDaily This 5-day diet helped Crohn’s patients feel better fast A new clinical trial suggests that what people eat could finally offer real relief for Crohn’s disease, a condition that has long lacked clear dietary guidance. Researchers found that a “fasting-mimicking diet” — involving just five days a month of very low…
Post #4594 146
This tiny claw in a 500-million-year-old fossil just rewrote the origin of spiders
What started as routine fossil cleaning turned into a major scientific surprise when researchers uncovered a tiny claw in a 500-million-year-old specimen where no cla…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 17:11 GMT+8（北京时间）
ScienceDaily This tiny claw in a 500-million-year-old fossil just rewrote the origin of spiders What started as routine fossil cleaning turned into a major scientific surprise when researchers uncovered a tiny claw in a 500-million-year-old specimen where no claw should exist. That detail revealed Megachelicerax cousteaui, the oldest known relative…
Post #4593 144
COVID-19疫情期间南非Candida auris血液感染的加速增加
研究人员发现，南非COVID-19疫情期间，Candida auris血液感染的发病率显著增加，尤其是在医院环境中，需要加强监测和预防措施。
来源: CDC ｜ 阅读全文
发布时间: 2026-04-02 12:00 GMT+8（北京时间）
#Candidaauris #COVID19 #南非 #血液感染
Emerging Infectious Diseases journal Accelerated Increase in <em>Candida auris</em> Bloodstream Infections during COVID-19 Pandemic, South Africa <em>C. auris</em> Infections during COVID-19 Pandemic
Post #4592 142
儿童服装中发现高含量的铅
研究人员测试了来自多家零售商的儿童衬衫样本，发现每个样本都超过了美国安全标准，引发了对有毒暴露的担忧，尤其是因为小孩子经常咬衣服。brightly色彩鲜艳的织物，如红色和黄色，显示出高含量，很可能是由于用于固定染料的化学物质。模拟表…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 08:25 GMT+8（北京时间）
#铅 #儿童 #服装 #安全 #环境毒理学
ScienceDaily Study finds dangerous lead levels in children’s clothing Fast fashion might come with a hidden danger: lead. Researchers testing children’s shirts from multiple retailers found every sample exceeded U.S. safety limits, raising concerns about toxic exposure—especially since young kids often chew on clothing. Brightly…
Post #4591 141
科学家称BMI对成人中超过三分之一的人群失误
一项新研究表明，广泛使用的健康指标BMI可能会对大部分人群失误。通过比较BMI分类与使用先进的DXA扫描进行的精确体脂测量，研究人员发现超过三分之一的成年人被错误分类。许多被认为超重或肥胖的人实际上并没有相应的体脂水平，而其他人则…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-03 12:19 GMT+8（北京时间）
#BMI #体脂 #健康指标
ScienceDaily Scientists say BMI gets it wrong for over one third of adults A new study suggests that one of the most widely used health metrics, BMI, may be getting it wrong for a large portion of the population. By comparing BMI classifications with precise body fat measurements using advanced DXA scans, researchers found that…
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