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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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Showing posts older than #4451 · Back to latest

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Post #4450 114
他活了48小时没有肺还活着
一位33岁的重症患者在医生的帮助下，通过一种创新的外科手术方法，仅用48小时的时间就没有肺却活了下来。患者因流感引起的感染严重损害了他的肺部，导致多个器官衰竭，医生们决定完全切除肺部以防止感染扩散。随后，他们使用了一种特殊设计的…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-18 16:15 GMT+8（北京时间）
#人工肺 #肺部感染 #重症患者
ScienceDaily He survived 48 hours without lungs and lived A critically ill 33-year-old man survived an almost unimaginable scenario—living for 48 hours without lungs—thanks to a groundbreaking surgical approach. After a severe flu-triggered infection destroyed his lungs and caused multiple organ failure, doctors…
Post #4449 85
有翅膀的恐龙却无法飞行
通过研究保留羽毛的罕见化石，研究人员发现了一个惊人的线索：安奇奥尼斯恐龙可能根本无法飞行。研究人员发现，安奇奥尼斯的羽毛脱落模式不像飞行鸟类那样整齐划一，而是杂乱无章，这是只有无翅鸟类才有的特征。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-18 18:08 GMT+8（北京时间）
#恐龙 #羽毛 #飞行 #鸟类
ScienceDaily These dinosaurs had wings but couldn’t fly Some feathered dinosaurs may have briefly taken to the skies—only to give it up later. By studying rare fossils with preserved feathers, researchers uncovered a surprising clue hidden in molting patterns, revealing that Anchiornis likely couldn’t fly at all.…
Post #4448 95
你的每日咖啡可能在保护你的大脑，43年研究发现
长期研究发现，适量饮用含有咖啡因的咖啡或茶可能降低了患痴呆的风险18%，并且在认知功能方面表现出改善。这种益处在2-3杯咖啡或1-2杯茶的饮用量下最为明显，甚至对那些易患痴呆的人群也有效。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-18 18:47 GMT+8（北京时间）
#咖啡 #茶 #痴呆 #认知功能 #咖啡因
ScienceDaily Your daily coffee may be protecting your brain, 43-year study finds Your morning coffee or tea could be quietly supporting your brain health. A long-term study found that moderate consumption of caffeinated coffee or tea was linked to an 18% lower risk of dementia and better cognitive performance over time. The benefits appeared…
Post #4447 79
科学家发现牛鲨有朋友
研究人员在斐济跟踪了6年，观察了184条牛鲨，发现它们不仅会随机混杂，还会选择伴侣、一起游泳，并且会协调地跟随彼此。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-18 09:20 GMT+8（北京时间）
#牛鲨 #社会行为 #斐济
ScienceDaily Scientists just discovered bull sharks have friends Bull sharks may have a reputation as lone hunters, but new research reveals they actually form social bonds and even have preferred “friends.” After six years of observing 184 sharks in Fiji, scientists discovered these animals don’t just mix randomly—they…
Post #4446 83
儿童时期的压力与终身消化问题的联系
研究表明，早期生活中的压力可能会干扰大脑和肠道的联系，从而导致长期的消化问题。研究在小鼠和成千上万个儿童身上发现了疼痛、便秘和IBS等症状之间的联系。科学家发现，控制不同肠道问题的生物学通路不同，这可能意味着未来更为个性化的治疗…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-18 10:08 GMT+8（北京时间）
#儿童时期压力 #消化问题 #肠道大脑连接
ScienceDaily Scientists link childhood stress to lifelong digestive issues Early life stress may set the stage for long-term digestive problems by disrupting the gut-brain connection. Studies in both mice and thousands of children found links to symptoms like pain, constipation, and IBS. Scientists discovered that different biological…
Post #4445 66
儿童时期的压力与终身消化问题的联系
研究表明，早期的压力可能会干扰大脑和肠道之间的联系，从而导致长期的消化问题。研究人员在小鼠和成千上万名儿童身上发现了疼痛、便秘和IBS等症状之间的联系。他们发现不同生物学途径控制不同的肠道问题，这为未来可能的个性化治疗提供了线…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-18 10:08 GMT+8（北京时间）
#儿童 #压力 #消化问题 #肠道健康
ScienceDaily Scientists link childhood stress to lifelong digestive issues Early life stress may set the stage for long-term digestive problems by disrupting the gut-brain connection. Studies in both mice and thousands of children found links to symptoms like pain, constipation, and IBS. Scientists discovered that different biological…
Post #4444 121
科学家发现了一种新脂肪调节开关并将其关闭
研究人员发现了一种以前未知的酶，它在脂肪生成中起着至关重要的作用。通过阻止它，研究人员在动物实验中停止了体重增加、减少了肝脏损伤和降低了有害胆固醇水平。该发现打开了一个新的大门，可能会解决肥胖、脂肪肝病和心血管疾病的同时治疗。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-07 00:27 GMT+8（北京时间）
#脂肪 #酶 #肥胖 #肝脏损伤 #胆固醇
ScienceDaily Scientists found a hidden fat switch and turned it off Researchers have discovered a previously unknown enzyme that plays a crucial role in fat production. By blocking it, they stopped weight gain, reduced liver damage, and lowered harmful cholesterol levels in animal studies. The finding opens the door to a…
Post #4443 121
治疗牙髓炎可能改善血糖和心脏健康
一项临床研究表明，成功的根管治疗不仅仅是改善牙齿健康，而是可以带来更好的血糖控制、更健康的胆固醇水平和减少炎症。牙髓炎可以让细菌进入血液循环，从而影响代谢和心脏健康。清除感染似乎可以逆转一些有害影响。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-16 10:51 GMT+8（北京时间）
#牙髓炎 #根管治疗 #血糖控制 #胆固醇水平 #炎症
ScienceDaily Fixing a tooth infection may improve blood sugar and heart health A new clinical study suggests that successful root canal treatment may benefit more than just dental health. Patients treated for infected teeth showed improved blood sugar control, healthier cholesterol levels, and reduced inflammation over time. The infection…
Post #4442 143
DNA折叠疫苗可能成为mRNA疫苗的下一个重大突破
mRNA疫苗在COVID-19中挽救了数百万生命，但其免疫力衰退和复杂生产工艺等问题仍存在。科学家们正在测试一种名为DoriVac的新平台，该平台使用折叠的DNA纳米结构来更好地控制免疫系统的反应。在早期研究中，它在小鼠和人类模型中产生了强…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-17 13:59 GMT+8（北京时间）
#DNA折叠疫苗 #mRNA疫苗 #DoriVac #疫苗研究
ScienceDaily DNA origami vaccines could be the next leap beyond mRNA mRNA vaccines saved millions of lives during COVID-19 but have limitations like waning immunity and complex production. Scientists are now testing a new platform called DoriVac, which uses folded DNA nanostructures to better control how the immune system…
Post #4441 145
ADHD brains show sleep-like activity even while awake
Researchers have identified a surprising brain pattern that may help explain why people with ADHD often struggle to stay focused. Even while awake, their brains can s…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-17 14:25 GMT+8（北京时间）
ScienceDaily ADHD brains show sleep-like activity even while awake Researchers have identified a surprising brain pattern that may help explain why people with ADHD often struggle to stay focused. Even while awake, their brains can slip into brief episodes of “sleep-like” activity during demanding tasks. These moments are…
Post #4440 133
科学家终于揭开阿尔茨海默病药物的秘密
科学家们发现了阿尔茨海默病药物Lecanemab的工作机制：通过特定的抗体片段Fc，激活脑中的免疫细胞，清除有害的阿米洛伊斑块。这一发现可能会重塑未来的阿尔茨海默病治疗方法。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-17 19:44 GMT+8（北京时间）
#阿尔茨海默病 #Lecanemab #抗体 #免疫细胞 #阿米洛伊斑块
ScienceDaily Scientists finally reveal how this Alzheimer’s drug really works A key Alzheimer’s drug has finally revealed its secret. Researchers discovered that lecanemab works by activating the brain’s immune cells—but only through a specific part of the antibody called the Fc fragment. This piece acts like a trigger, prompting microglia…
Post #4439 73
科学家揭示了为何痒疹可转变为关节病变
研究人员已经了解了为何某些患者的痒疹会悄悄转变为关节疾病。炎症的皮肤细胞可以通过血液到达关节，偶尔会引发炎症。关键区别在于关节是否能控制这些细胞。这种洞察力可能有助于医生早期识别警告信号并防止关节损伤。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-05 23:44 GMT+8（北京时间）
#痒疹 #关节病变 #炎症 #免疫细胞
ScienceDaily Scientists uncover why psoriasis can turn into joint disease Researchers have figured out how psoriasis can quietly turn into joint disease for some patients. Immune cells formed in inflamed skin can travel through the blood and reach the joints, where they sometimes trigger inflammation. The key difference lies in…
Post #4438 75
常见杀虫剂可能会将帕金森病风险增加两倍多
一项UCLA健康研究表明，长期接触杀虫剂氯氰菊酯可能会显著增加帕金森病的风险。研究人员发现，长期暴露于该地区的人群患帕金森病的可能性增加了2.5倍。实验室实验也证实了这一发现：暴露于该化学物质的动物出现了运动问题、丧失多巴胺产生细…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-17 06:49 GMT+8（北京时间）
#帕金森病 #杀虫剂 #氯氰菊酯 #风险增加
ScienceDaily Common pesticide may more than double Parkinson’s disease risk A new UCLA Health study suggests that long-term exposure to the pesticide chlorpyrifos may dramatically raise the risk of Parkinson’s disease. Researchers found that people living in areas with sustained exposure had more than 2.5 times the likelihood of…
Post #4437 87
科学家们将肿瘤注射到身体各处，观察癌症消失
科学家们研发了一种重设计的癌症免疫疗法，通过注射CD40激动抗体直接到肿瘤部位，取得了令人惊讶的初步成果。该疗法在12名有转移性癌症的患者中进行的小规模临床试验中，6名患者肿瘤缩小，2名患者实现了完全缓解。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-17 08:18 GMT+8（北京时间）
#癌症 #免疫疗法 #CD40激动抗体
ScienceDaily Scientists inject one tumor and watch cancer vanish across the body A redesigned cancer immunotherapy is showing striking early results after decades of disappointment with similar drugs. Researchers engineered a more powerful CD40 agonist antibody and changed how it’s delivered—injecting it directly into tumors instead of…
Post #4436 97
临床试验结果支持每周长效布匹尼芬用于妊娠期间的鸦片类物质滥用治疗
一项由NIH支持的研究表明，这种治疗方法比当前的标准护理更能提高非法鸦片类物质戒断率。
来源: NIH ｜ 阅读全文
#鸦片类物质滥用 #妊娠 #长效布匹尼芬 #戒断
National Institutes of Health (NIH) Clinical trial results support use of weekly extended-release buprenorphine for treatment of opioid use disorder during pregnancy NIH-supported study shows this treatment resulted in higher rates of illicit opioid abstinence than current standard of care.
Post #4435 147
专门设计的音乐仅需24分钟即可显著减轻焦虑
一项临床试验发现，听专门设计的音乐伴随着听觉节奏刺激，可以显著减轻焦虑。测试的几个听歌时间中，24分钟的听歌时间带来了最大的好处，既能缓解心理症状，又能缓解身体症状。研究结果表明，可能存在一种理想的治疗音乐剂量，能够快速发挥作用…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-16 19:04 GMT+8（北京时间）
#音乐 #焦虑 #临床试验
ScienceDaily Just 24 minutes of specially designed music could significantly reduce anxiety A clinical trial found that listening to specially designed music with auditory beat stimulation can significantly reduce anxiety. Among several listening lengths tested, a 24-minute session delivered the biggest benefits, easing both mental and physical…
Post #4434 163
联合国领导人呼吁持续致力和投资以结束女儿童割礼
联合国多个机构的领导人呼吁持续致力和投资以结束女儿童割礼，目前有超过2.3亿女孩和妇女仍然承受着这一终身的后果。据估计，2026年将有4.5百万女孩（其中许多人年龄不足5岁）面临着女儿童割礼的风险。
来源: WHO ｜ 阅读全文
发布时间: 2026-02-05 21:51 GMT+8（北京时间）
#女儿童割礼 #联合国 #国际日 #零容忍
World Health Organization Over four million girls still at risk of female genital mutilation: UN leaders call for sustained commitment and investment to… Female genital mutilation is a violation of human rights and cannot be justified on any grounds. It compromises girls’ and women’s physical and mental health and can lead to serious, lifelong complications, with treatment costs estimated at about US$ 1.4…
Post #4433 155
恐龙灭绝的陨石撞击后，生命迅速复苏
科学家通过使用罕见的同位素标记来更准确测量古代沉积物的年代，发现微小的浮游植物在几千年内就开始演化出新物种，甚至可能在2000年内。这种快速复苏的发现表明生命比之前想象的要更快恢复。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-15 12:44 GMT+8（北京时间）
#恐龙灭绝 #陨石撞击 #微生物 #演化
ScienceDaily Life rebounded shockingly fast after the asteroid that killed the dinosaurs The asteroid impact that wiped out the dinosaurs didn’t keep life down for long. New research shows that microscopic plankton began evolving into new species within just a few thousand years—and possibly in under 2,000 years—after the disaster. Scientists…
Post #4432 95
麻省理工学院科学家发现肠道蛋白质捕捉并杀死有害细菌
麻省理工学院的科学家们发现了一种叫做intelectin-2的未知蛋白质，它在保护肠道方面发挥着双重作用。这种蛋白质不仅可以增强肠道粘液层的厚度，还能捕捉并disable有害细菌，包括那些对抗生素有抗性的细菌。通过结合粘液分子上的糖和细菌…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-16 12:05 GMT+8（北京时间）
#intelectin2 #肠道保护 #有害细菌
ScienceDaily MIT scientists discover gut protein that traps and kills dangerous bacteria Scientists at MIT have discovered that a little-known protein called intelectin-2 plays a powerful double role in defending the gut. The protein strengthens the mucus layer that lines the gastrointestinal tract while also trapping and disabling harmful bacteria…
Post #4431 121
科学家们创造出一种可以照亮肿瘤的癌症探照灯
科学家们开发了一种微小的抗体，它可以识别一种常见的癌症蛋白质并在PET扫描中使肿瘤发光。在与小鼠的测试中，含有EphA2蛋白质的肿瘤在使用抗体后清晰可见。这可能有助于医生快速识别可能受益于新型靶向癌症治疗的患者。这种方法也可能提供…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-16 13:04 GMT+8（北京时间）
#癌症 #抗体 #PET扫描 #肿瘤 #癌症治疗
ScienceDaily Scientists create a cancer flashlight that lights up tumors Researchers have developed a tiny antibody that can find a common cancer protein and make tumors light up during PET scans. In tests with mice, tumors containing the protein EphA2 glowed clearly when the antibody was used. This could help doctors quickly…
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