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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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Showing posts older than #4711 · Back to latest

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Post #4710 74
科学家发现清洁蚂蚁在亚利桑那沙漠中为巨型蚂蚁清洁
科学家在亚利桑那沙漠中发现了一种奇怪的、几乎不可思议的蚂蚁合作关系:小型锥形蚂蚁作为“清洁工”为更大的收割蚂蚁清洁。相反,小蚂蚁会爬到巨蚂蚁身上,舔舐它们的身体,甚至会进入巨蚂蚁的张开的嘴中,而巨蚂蚁则会保持镇静。这种场景类似于…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-15 11:01 GMT+8(北京时间)
#蚂蚁 #清洁行为 #合作 #亚利桑那沙漠
ScienceDaily Scientists discover “cleaner ants” that groom giant ants in Arizona desert In the Arizona desert, scientists have uncovered a bizarre and almost unbelievable partnership between ants: tiny cone ants acting as “cleaners” for much larger harvester ants. Instead of attacking, the smaller ants crawl over the giants, licking and nibbling…
Post #4709 63
常见的痛风药物可能降低心脏病发作和中风风险
研究人员发现,患者通过服用痛风药物如阿洛普利诺尔成功降低尿酸水平后,五年内心脏病发作、中风和心血管死亡的风险显著降低。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-15 11:11 GMT+8(北京时间)
#痛风 #心脏病 #中风 #阿洛普利诺尔
ScienceDaily This common gout drug may slash heart attack and stroke risk A major new study reveals that treating gout may do far more than ease painful joint flare-ups—it could also protect the heart. Researchers found that patients who took common gout medications like allopurinol and successfully lowered their blood urate levels…
Post #4708 76
科学家们刚刚解决了1600万年古生物化石之谜 "我从未见过如此之事"
科学家们发现了5500万年前的软体海绵化石,这一发现解释了早期海绵进化的"失落年",也支持了早期海绵是软体的观点。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-15 14:02 GMT+8(北京时间)
#海绵 #化石 #早期生命 #进化
ScienceDaily Scientists just solved a 160-million-year fossil mystery “I’ve never seen anything like it” A rare fossil discovery is shedding light on the “missing years” of early sponge evolution. Scientists found a 550-million-year-old sponge that likely lacked hard skeletal parts, explaining why earlier fossils are so scarce. This supports the idea that the…
Post #4707 112
95%的人口携带这一病毒,科学家们可能刚刚找到了阻止它的方法
科学家们在对抗爱普斯坦-巴尔病毒(EBV)方面取得了重大突破,后者与癌症和慢性疾病有关。通过在实验室中使用带有人类抗体基因的老鼠,研究人员创造了强大的类似人类的抗体,能够阻止病毒附着并进入免疫细胞。其中一项抗体在实验室中模拟的人…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-15 15:26 GMT+8(北京时间)
#爱普斯坦巴尔病毒 #EBV #癌症 #慢性疾病 #抗体
ScienceDaily 95% of people carry this virus and scientists may have just found how to stop it Scientists have taken a major step toward stopping Epstein-Barr virus (EBV), an extremely common infection linked to cancer and chronic disease. By using mice engineered with human antibody genes, researchers created powerful human-like antibodies that block…
Post #4706 148
终身进行认知刺激活动可能降低阿尔茨海默病风险38%
研究表明,终身进行认知刺激活动,如阅读、写作和学习新技能,可能有助于保护老年期的大脑。研究发现,认知活动丰富的人群阿尔茨海默病的风险显著降低,并且症状出现的时间也晚于那些认知活动较少的人群。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-15 16:09 GMT+8(北京时间)
#阿尔茨海默病 #认知刺激 #老年期脑保护
ScienceDaily Doing this throughout life may cut Alzheimer’s risk by 38% A lifetime of mental stimulation—like reading, writing, and learning new skills—may help protect the brain as we age. People with the highest levels of cognitive enrichment had a much lower risk of Alzheimer’s and experienced symptoms years later than those…
Post #4705 249
运动可能是治疗抑郁症和焦虑症的最强效治疗方法
一项涵盖全球研究的综述表明,尤其是有氧活动,如跑步、游泳和跳舞,可能是缓解抑郁症和焦虑症的最强效方法。数万人参与的研究表明,运动一致性地减轻症状,甚至超过或匹配药物和谈话治疗。
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-16 14:58 GMT+8(北京时间)
#抑郁症 #焦虑症 #运动 #有氧活动
ScienceDaily Exercise may be one of the most powerful treatments for depression and anxiety A sweeping review of global research suggests that exercise—especially aerobic activities like running, swimming, and dancing—can be one of the most powerful ways to ease depression and anxiety. Across tens of thousands of people aged 10 to 90, exercise consistently…
Post #4704 248
公共卫生间里最脏的东西并不是马桶座
公共卫生间看似是细菌的温床,但实际上真正的风险并不是总是出现在你想的地方。虽然马桶座上可能携带细菌、病毒和寄生虫痕迹,但研究表明,它们往往比门把手和冲水器更干净。最大的隐患来自“马桶烟雾”——在没有盖子时冲水时产生的细菌充满的微…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-14 10:49 GMT+8(北京时间)
#公共卫生间 #卫生 #细菌 #病毒 #寄生虫
ScienceDaily The dirtiest thing in public bathrooms isn’t the toilet seat Public restrooms might seem like a germ nightmare, but the real risks aren’t always where you think. While toilet seats can carry bacteria, viruses, and even parasite traces, studies show they’re often cleaner than high-touch surfaces like door handles and…
Post #4703 221
你住的伴侣可能在改变你的肠道菌群
研究表明,与亲密伴侣共处可能比你想象的更深入,甚至可能改变你的肠道菌群。研究发现,岛鸟与亲密社交联系的鸟类共享了更多的肠道微生物,尤其是那些需要直接接触才能传播的类型。这表明社交互动本身——而不是仅仅共享空间——驱动了微生物交换…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-14 11:40 GMT+8(北京时间)
#肠道菌群 #社交 #微生物交换
ScienceDaily The people you live with could be changing your gut bacteria Spending time with close companions might do more than strengthen bonds—it could also reshape your gut bacteria. In a study of island birds, those with stronger social ties shared more gut microbes, especially types that require direct contact to spread.…
Post #4702 117
细胞内部奇特的“珍珠”运动可能改变我们对疾病的理解
科学家们发现,线粒体不仅仅是产生能量的场所,它们还会精心组织自己的DNA,形成一种令人惊讶的美观方式。科学家们发现,长期被忽视的“线粒体珍珠化”现象,线粒体会暂时形成珍珠状形状,帮助均匀排列线粒体DNA的聚集。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-14 11:54 GMT+8(北京时间)
#线粒体 #DNA #细胞 #疾病
ScienceDaily This strange “pearling” motion inside cells could change how we understand disease Mitochondria don’t just generate energy—they also carefully organize their own DNA in a surprisingly elegant way. Scientists have discovered that a long-overlooked phenomenon called “mitochondrial pearling,” where mitochondria briefly form bead-like shapes…
Post #4701 84
孤独的人记忆力较差,但并非衰退速度更快,研究发现
一项大型欧洲研究追踪了超过1万人7年,发现孤独感的人最初记忆力较差,但其记忆力并未比那些更具社交联系的人更快恶化。研究结果挑战了孤独直接加速认知衰退或痴呆的想法,表明孤独影响的是基线脑功能。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-14 20:56 GMT+8(北京时间)
#孤独 #记忆力 #认知衰退 #老年人
ScienceDaily Lonely people have worse memory but don’t decline faster, study finds Loneliness may quietly affect how well older adults remember things—but it might not be speeding up mental decline after all. A large European study tracking over 10,000 people for seven years found that those who felt lonelier started off with weaker memory…
Post #4700 82
阻止一种蛋白质,让免疫系统更强大对抗癌症
科学家们发现了一种方法,通过阻止一种蛋白质Ant2,使T细胞重新编程能量生成方式,使其更强大、更具韧性和更有效地寻找和消灭癌细胞。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-14 21:08 GMT+8(北京时间)
#T细胞 #Ant2 #免疫系统 #癌症
ScienceDaily Blocking a single protein supercharges the immune system against cancer Scientists have discovered a way to supercharge the immune system’s T cells by blocking a protein called Ant2, forcing the cells to rewire how they generate energy. This shift makes them more powerful, resilient, and effective at finding and destroying cancer…
Post #4699 140
面包可能会让你变胖——不仅仅是因为多吃了
研究人员发现,面包和其他碳水化合物食物可能会影响代谢,导致体重和体脂肪增加,原因是身体燃烧能量减少,而不是因为摄入的热量增加。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-14 21:21 GMT+8(北京时间)
#面包 #碳水化合物 #代谢 #体重 #体脂肪
ScienceDaily Scientists discover why bread can cause weight gain without extra calories Bread and other carbohydrate staples may be doing more than just filling plates—they could be quietly reshaping metabolism. In a surprising twist, researchers found that mice strongly preferred carbs like bread, rice, and wheat, abandoning their regular diet…
Post #4698 183
科学家们刚刚打破了50年来关于夏威夷鸟类的神话
夏威夷大学马诺阿分校的一项新研究推翻了一个几十年的信念:夏威夷原住民曾经将本土水鸟驱逐到灭绝。研究人员发现没有科学证据支持这一说法,提出了一个更为复杂的解释:气候变化、入侵物种和土地使用模式的变化——许多发生在波利尼西亚人到…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-14 21:31 GMT+8(北京时间)
#夏威夷 #鸟类 #原住民 #气候变化 #入侵物种
ScienceDaily Scientists just debunked a 50-year myth about Hawaii’s birds A new study from the University of Hawaiʻi at Mānoa is overturning a decades-old belief that Indigenous Hawaiians hunted native waterbirds to extinction. Instead, researchers found no scientific evidence supporting this claim and propose a more complex explanation…
Post #4697 201
2500万年前的化石终于揭示:哺乳动物祖先曾经产卵
在地球发生了最大的灭绝事件后,一个不太可能的幸存者在一个破碎的世界中崛起:Lystrosaurus。现在,一个惊人的化石发现——一个古老的卵囊中含有一个卷曲的胚胎——终于回答了一个关于哺乳动物祖先是否产卵的长达数十年的谜团。通过使用先进…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-14 22:20 GMT+8(北京时间)
#Lystrosaurus #哺乳动物 #化石 #产卵
ScienceDaily Mammal ancestors laid eggs, and this 250-million-year-old fossil finally proves it In the aftermath of Earth’s most catastrophic extinction event, one unlikely survivor rose to dominate a shattered world: Lystrosaurus. Now, a stunning fossil discovery—an ancient egg containing a curled-up embryo—has finally answered a decades-old mystery…
Post #4696 188
NIH资助的突破:精准交付CRISPR的新方法
科学家们开发了一种更小的基因编辑系统,可能扩大癌症、ALS和其他疾病的治疗选择。
来源: NIH | 阅读全文
#CRISPR #基因编辑 #癌症 #ALS
Post #4695 185
灰鲸进入旧金山湾,许多个体未能生存
由于气候变化干扰其北极食物来源,灰鲸开始打破其长期的迁徙模式,进入旧金山湾等风险较高的新区域。然而,这个意外的迁徙路线却带来了致命的后果:近五分之一进入湾区的灰鲸未能生存,许多个体在拥挤的、雾蒙蒙的水域中被船只撞击致死。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-13 21:09 GMT+8(北京时间)
#灰鲸 #旧金山湾 #气候变化 #迁徙模式
ScienceDaily Gray whales are entering San Francisco Bay and many aren’t surviving Gray whales are beginning to break their long-established migration patterns, venturing into risky new territory like San Francisco Bay as climate change disrupts their Arctic food supply. But this unexpected detour is proving deadly: nearly one in five whales…
Post #4694 167
男性和女性肥胖人群面临着不同的隐性健康风险
研究发现,肥胖对男性和女性产生了截然不同的影响。男性更容易发展出有害的腹部脂肪和肝脏应激迹象,而女性则表现出更高的炎症和胆固醇水平。这些差异可能有助于解释为什么健康风险在性别之间会有所不同。科学家表示,这可能会导致针对肥胖的…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-13 21:29 GMT+8(北京时间)
#肥胖 #性别差异 #健康风险 #肝脏应激 #炎症
ScienceDaily Men and women with obesity face very different hidden health risks New research reveals that obesity affects men and women in surprisingly different ways. Men are more likely to develop harmful abdominal fat and signs of liver stress, while women show higher inflammation and cholesterol levels. These differences could help…
Post #4693 89
新型牙膏能治愈牙周病不杀好菌
科学家们开发了一种新的牙膏,能够有效治疗牙周病,而不杀死口腔中的益菌,这与传统的治疗方法有了重大转变。这种新方法只会阻止导致牙周病的有害细菌,而不杀死益菌,从而让益菌得以茁壮成长,自然恢复口腔平衡。
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-13 22:02 GMT+8(北京时间)
#牙周病 #益菌 #牙膏
ScienceDaily New toothpaste stops gum disease without killing good bacteria Scientists have developed a new way to fight gum disease without wiping out the mouth’s helpful bacteria—a major shift from traditional treatments. Instead of killing everything, this targeted approach blocks only the harmful microbes that drive periodontitis…
Post #4692 96
光线使植物更强壮,但也拖累它们
研究人员发现光线不仅有助于植物生长,还可能会悄悄地拖累它们。他们揭示了光线加强植物外皮和内部组织之间的“胶粘剂”的机制。这种更紧密的粘合剂,由一种称为p-酚甲酸的化合物驱动,增强了细胞壁,但也限制了植物的扩张量。这个发现揭示了光…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-13 20:52 GMT+8(北京时间)
#光线 #植物 #生长 #细胞壁
ScienceDaily Light makes plants stronger but also holds them back Light doesn’t just help plants grow—it may also quietly hold them back. Researchers have uncovered a surprising mechanism where light strengthens the “glue” between a plant’s outer skin and its inner tissues. This tighter bond, driven by a compound called…
Post #4691 111
斯坦福科学家发现“自然奥泽米克”无副作用
斯坦福科学家通过人工智能发现了一种新分子,这种分子能够模拟奥泽米克类药物的强大饥饿抑制作用,但不具有许多不愉快的副作用。这种微小的肽,称为BRP,似乎直接作用于大脑的饥饿控制中心,帮助动物减少进食和减肥,避免恶心和肌肉损失等不良…
来源: ScienceDaily | 阅读全文
发布时间: 2026-04-13 10:34 GMT+8(北京时间)
#奥泽米克 #饥饿抑制 #无副作用
ScienceDaily Stanford scientists discover “natural Ozempic” without side effects A newly discovered molecule could reshape the future of weight loss treatments by mimicking the powerful appetite-suppressing effects of drugs like Ozempic — but without many of the unpleasant side effects. Identified using artificial intelligence, this tiny…
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