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生物医学科技前线

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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 #4750 146
约翰逊博士被任命为NHLBI首席执行官
美国国家卫生研究院临床中心是世界上最大的研究医院。
来源: NIH ｜ 阅读全文
#约翰逊博士 #NHLBI #美国国家卫生研究院临床中心
Post #4749 165
科学家发现抗生素抗性细菌的新药物：来自韩国保湿成分
科学家们发现，来自韩国保湿成分madecassic酸，可以有效杀灭抗生素抗性的细菌，包括危险的E. coli菌株。该成分通过干扰细菌的蛋白质，干扰其生存能力，成为一种新的抗生素的希望。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-21 13:33 GMT+8（北京时间）
#madecassic酸 #抗生素抗性 #韩国保湿成分
ScienceDaily Scientists discover skincare compound that kills drug-resistant bacteria A popular Korean skincare ingredient may be far more powerful than anyone realized. Scientists have discovered that madecassic acid—derived from the herb Centella asiatica—can stop antibiotic-resistant bacteria in their tracks, including dangerous strains…
Post #4748 101
Scientists discover hidden “master switch” driving skin cancer growth and immune escape
A key protein, HOXD13, helps melanoma tumors grow and evade the immune system by boosting blood supply and blocking cancer-fighting T cells. Disabling it shrinks tumo…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-21 15:40 GMT+8（北京时间）
ScienceDaily Scientists discover hidden “master switch” driving skin cancer growth and immune escape A key protein, HOXD13, helps melanoma tumors grow and evade the immune system by boosting blood supply and blocking cancer-fighting T cells. Disabling it shrinks tumors and reopens the door for the immune system—offering a new path for treatment.
Post #4747 104
这些小恐龙化石骗过科学家20年
科学家近20年来一直困惑于这些小恐龙化石的身份，最新研究表明它们实际上是年幼的甲龙类，包括可能的雏鸟。通过研究骨骼生长模式，研究人员确认这些年轻的恐龙尚未成长为成年个体。该研究揭示了甲龙类的生长方式，显示它们开始发展甲壳的时间…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-21 22:17 GMT+8（北京时间）
#恐龙 #甲龙类 #化石 #骨骼生长
ScienceDaily These tiny dinosaur fossils fooled scientists for 20 years Tiny dinosaur fossils that puzzled scientists for over 20 years have finally revealed their true identity. Rather than belonging to a miniature species, they are actually baby ankylosaurs—some less than a year old, including a possible hatchling. By studying…
Post #4746 97
Scientists just captured trees glowing with electricity during storms
Scientists chasing thunderstorms in a retrofitted minivan finally captured something never seen before in nature: faint electrical glows shimmering from treetops duri…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-21 22:59 GMT+8（北京时间）
ScienceDaily Scientists just captured trees glowing with electricity during storms Scientists chasing thunderstorms in a retrofitted minivan finally captured something never seen before in nature: faint electrical glows shimmering from treetops during a storm. These “corona discharges,” long suspected but never observed outside a lab, appeared…
Post #4745 93
常见植物种子可清除饮用水中的微塑料
科学家发现芜菁种子可以帮助从水中提取微塑料，甚至超过了标准化化学处理。该植物提取物会让塑料颗粒聚集在一起，从而更容易过滤掉。 在某些条件下，它甚至超过了传统化学物质。这一低成本的自然解决方案可能会成为更好的饮用水来源，尤其是在…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-20 16:56 GMT+8（北京时间）
#芜菁种子 #微塑料 #饮用水 #自然解决方案
ScienceDaily This common plant could clean microplastics from your drinking water Scientists have discovered that moringa seeds can help pull microplastics out of water, rivaling standard chemical treatments. The plant-based extract causes plastic particles to clump together, making them easier to filter away. In some conditions, it even…
Post #4744 78
科学家惊讶：细菌重写DNA机制塑造细胞形状
科学家们发现古老的细菌蓝藻在数亿年后仍然揭示出新惊奇：一种曾用于分离DNA的分子系统被重新利用，变成一种塑造细胞形状的结构。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-20 18:18 GMT+8（北京时间）
#蓝藻 #DNA #细胞形状
ScienceDaily Scientists stunned as bacteria rewire DNA machinery to shape cells Cyanobacteria—ancient microbes that oxygenated Earth and made complex life possible—are still revealing surprises billions of years later. Scientists have now discovered that a molecular system once used to separate DNA has been repurposed into something…
Post #4743 72
三种常见氨基酸让mRNA疗法强度提升20倍
研究人员发现，加入三种常见氨基酸到脂质纳米颗粒中，可以大大提高mRNA的传递效率，甚至可以将CRISPR编辑效率提高到接近90%。这种方法并不是改变药物本身，而是帮助细胞更容易吸收药物。在初期试验中，这种方法显著改善了生存率和治疗效果，…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-20 18:53 GMT+8（北京时间）
#mRNA疗法 #CRISPR编辑 #脂质纳米颗粒
ScienceDaily This simple 3-amino acid trick boosts mRNA therapy 20-fold A trio of common amino acids may hold the key to unlocking far more powerful gene therapies. Researchers found that adding them to lipid nanoparticles can boost mRNA delivery up to 20-fold and push CRISPR editing efficiency close to 90%. The trick isn’t changing…
Post #4742 143
缺失的维生素可能会阻止癌细胞的生长
研究人员发现维生素B7可以通过一种关键酶使癌细胞能够逃避其对葡萄糖的依赖，从而实现生长的转变。然而，缺乏维生素B7会导致癌细胞失去这种灵活性，无法生长。癌症相关基因的突变可以使这种弱点更加明显，从而为治疗提供了新的希望。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-20 19:14 GMT+8（北京时间）
#维生素B7 #癌症 #葡萄糖依赖 #癌细胞 #生长抑制
ScienceDaily This missing vitamin could stop cancer cells in their tracks Cancer cells are known for their “glutamine addiction,” but many can escape this weakness by switching to alternative fuels. Researchers found that vitamin B7 acts like a metabolic “license,” enabling this escape route through a key enzyme. Without biotin…
Post #4741 144
加州蜜蜂抵抗杀虫剂杀灭蜂巢的杀手
一项研究发现，加州南部的杂交蜜蜂群体在抵抗害蜂寄生虫方面表现出显著的抗性。这些蜜蜂虽然不免疫，但寄生虫数量少，几乎不需要使用杀虫剂。更令人惊讶的是，这种抗性似乎在幼虫阶段就开始体现，幼虫对寄生虫的吸引力较小。这种杂交蜜蜂可能为…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-21 11:28 GMT+8（北京时间）
#加州 #杂交蜜蜂 #蜂巢 #害蜂寄生虫
ScienceDaily These California bees are beating a killer that’s wiping out colonies A unique hybrid honeybee thriving in Southern California may hold a powerful clue to saving struggling bee populations. While U.S. beekeepers are losing massive numbers of colonies—largely due to destructive Varroa mites—a locally adapted mix of feral and…
Post #4740 147
95% success rate: This new trick lures termites straight to their death
Scientists at UC Riverside have found a clever new way to outsmart termites—by turning their own instincts against them. Using a natural pine scent called pinene, whi…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-21 11:54 GMT+8（北京时间）
ScienceDaily 95% success rate: This new trick lures termites straight to their death Scientists at UC Riverside have found a clever new way to outsmart termites—by turning their own instincts against them. Using a natural pine scent called pinene, which smells like food to termites, researchers can lure the pests straight toward a targeted…
Post #4739 135
这种橄榄油可能会提高脑力
研究表明，Extra virgin橄榄油可能通过肠道保护大脑。研究人员发现，长期摄入Extra virgin橄榄油的人表现出更好的认知能力和更丰富的肠道细菌群，而使用精炼橄榄油的人则相反。研究人员甚至找到了这些益处与特定微生物的联系。研究结果表…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-19 11:45 GMT+8（北京时间）
#Extravirgin橄榄油 #肠道 #认知能力 #脑健康
ScienceDaily Scientists say this type of olive oil could boost brain power Extra virgin olive oil might help protect your brain by working through your gut. A two-year study found that people who consumed it had better cognitive performance and more diverse gut bacteria than those using refined olive oil. Researchers even identified…
Post #4738 126
世界卫生组织成员国就新冠疫情协议的病原体共享和利益共享附录进行磋商
世界卫生组织成员国在 2 月 9 日至 14 日举行的一周磋商后，完成了对《世界卫生组织新冠疫情协议》病原体访问和利益共享（PABS）附录的草案的讨论。世界卫生组织成员国卫生大会 (WHA) 去年成立的政府间工作小组 (IGWG) 第五次会议结束后…
来源: WHO ｜ 阅读全文
发布时间: 2026-02-17 17:24 GMT+8（北京时间）
#世界卫生组织 #新冠疫情协议 #病原体访问和利益共享
World Health Organization Global commitment on display as countries negotiate key annex to the Pandemic Agreement Member States of the World Health Organization (WHO) concluded a weeklong round of negotiations on draft annex for Pathogen Access and Benefit Sharing (PABS) – a key component of the WHO Pandemic Agreement.
Post #4737 104
摄入更多水果和蔬菜与意外的肺癌风险有关
一项新的研究表明，摄入大量富含水果、蔬菜和全谷物的健康饮食可能与年轻非吸烟者肺癌的风险增加有关。研究人员发现，年轻患者（小于50岁）被诊断出患有肺癌的人往往有比平均水平更好的饮食习惯，这使得从常规种植的农产品中接触到杀虫剂的可…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-18 11:27 GMT+8（北京时间）
#肺癌 #饮食 #农药 #健康饮食
ScienceDaily Eating more fruits and vegetables tied to unexpected lung cancer risk A surprising new study suggests that eating a very healthy diet—packed with fruits, vegetables, and whole grains—might be linked to a higher risk of lung cancer in younger non-smokers. Researchers found that patients under 50 diagnosed with lung cancer often…
Post #4736 109
鲨鱼和巨大金枪鱼正处于高温状态，食物短缺
研究表明，海洋中最快、最凶猛的掠食者，如大白鲨和巨大金枪鱼，正在超出预期的高温状态，严重影响其生存。研究发现，这些温血鱼类的能量消耗几乎是冷血动物的四倍，迫使它们进食更多，同时也难以排出多余的热量。随着海洋温度的升高，出现了一个…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-18 13:10 GMT+8（北京时间）
#鲨鱼 #巨大金枪鱼 #温血动物 #海洋温度 #能量消耗
ScienceDaily Sharks and tuna are overheating and running out of options Some of the ocean’s fastest and most fearsome predators—like great white sharks and tuna—are running hotter than expected, and it’s costing them dearly. New research shows these warm-bodied fish burn nearly four times more energy than cold-blooded species…
Post #4735 96
人工神经元成功与活体脑细胞通信
北western大学的工程师们通过打印人工神经元，实现了将机器与人类大脑相融合的重大突破，这些柔性、低成本的设备能够产生类似于生物电信号，激活活体脑细胞，实验结果在小鼠脑组织中成功验证。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-18 15:32 GMT+8（北京时间）
#人工神经元 #脑细胞 #脑机融合
ScienceDaily Artificial neurons successfully communicate with living brain cells Engineers at Northwestern University have taken a striking leap toward merging machines with the human brain by printing artificial neurons that can actually communicate with real ones. These flexible, low-cost devices generate lifelike electrical signals…
Post #4734 101
咖啡因如何影响蚂蚁可能会改变害虫控制
研究表明，咖啡因不仅可以提高人类的兴奋度，还可以提高蚂蚁的认知能力。研究人员发现，给予咖啡因的入侵性阿根廷蚂蚁能够更高效地找到食物，走的路线更直接，减少了行程时间的38%。这些蚂蚁并没有变得更快，而是更加专注，这表明了认知能力的…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-18 19:54 GMT+8（北京时间）
#咖啡因 #蚂蚁 #害虫控制 #认知能力
ScienceDaily What caffeine does to ants could change pest control Caffeine doesn’t just perk up humans—it can sharpen ants’ minds too. Invasive Argentine ants given caffeinated sugar learned to find food much more efficiently, taking straighter paths and reducing travel time by up to 38%. They weren’t faster, just more…
Post #4733 82
不论你坐多久，走路更多也能降低死亡和疾病风险
研究表明，只要愿意多走路，长时间坐着不一定像之前所担忧的那样有害。一个追踪超过7.2万人的大型研究发现，仅仅增加日常步数就能显著降低死亡和心血管疾病的风险，即使是长时间久坐的人也能受益。每天步数达到9000-10000步可以获得最大收…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-18 22:08 GMT+8（北京时间）
#步数 #死亡风险 #心血管疾病 #久坐
ScienceDaily It doesn’t matter how much you sit — walking more could lower your risk of death and disease Sitting all day might not be as damaging as once feared—if you’re willing to move more. A massive study tracking over 72,000 people found that simply increasing daily steps can significantly reduce the risk of death and heart disease, even for those who spend…
Post #4732 96
科学家发现细菌可以“爆炸”传播抗生素耐药性
科学家揭示了细菌如何共享基因，包括传播抗生素耐药性的基因。研究人员发现，细菌将古老的病毒样颗粒（GTAs）重塑为将DNA传递到邻近细胞的载体。研究表明，三个基因组成的LypABC控制中心是触发细菌细胞爆炸并释放这些DNA包裹的关键调控中心…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-17 19:44 GMT+8（北京时间）
#细菌 #抗生素耐药性 #基因转移 #病毒样颗粒
ScienceDaily Scientists discover bacteria can “explode” to spread antibiotic resistance Scientists have uncovered a surprising twist in how bacteria share genes—including those that spread antibiotic resistance. Tiny virus-like particles called gene transfer agents (GTAs), once ancient viral invaders, have been repurposed by bacteria into delivery…
Post #4731 120
碳酸水是否能增强新陈代谢并帮助减肥？
研究表明，碳酸水可能会轻微地增强人体处理血糖和能量的效率，但这种效果非常微小，不能取代饮食和运动。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-04-17 15:17 GMT+8（北京时间）
#碳酸水 #新陈代谢 #减肥
ScienceDaily Can sparkling water boost metabolism and help with weight loss? Sparkling water is often seen as a simple, healthy drink—but could it also help with weight loss? New research suggests it may slightly boost how the body processes blood sugar and energy. However, the effect is very small, meaning it’s no substitute for…
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