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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 #4011 · Back to latest

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Post #4010 28
无纤维加工食品会迅速影响情绪记忆,尤其是在老年脑中
研究表明,高加工食品会导致记忆问题和老年大脑的炎症,影响速度快,仅需三天的糟糕饮食就能发生
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 04:20 GMT+8(北京时间)
#无纤维加工食品 #情绪记忆 #老年脑 #炎症
Medicalxpress Fiber-free processed foods hit emotional memory fast, especially in older brains Past studies in animals have shown that a highly processed diet is linked to memory problems and inflammation in the aged brain—and the effect can happen fast, after just three days of poor eating.
Post #4009 26
是否益生菌对你有效?模型预测肠道代谢预测成功的益生菌和前生物质的影响
研究人员通过电脑模型模拟肠道代谢,预测哪些益生菌能够在人体肠道定居,并且不同前生物质对健康促进短链脂肪酸的产生有何影响。研究结果发表在PLOS生物学杂志上,作者包括美国系统生物学研究所的Sean Gibbons等人。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 04:36 GMT+8(北京时间)
#益生菌 #肠道代谢 #预测模型 #前生物质
Medicalxpress Will probiotics work for you? Models map gut metabolism to predict success A new study demonstrates that computer models of gut metabolism can predict which probiotics will successfully establish themselves in a person's gut and how different prebiotics affect production of ...
Post #4008 21
SNAP-47蛋白可能在调节脑内催产素释放中起关键作用
一项由西班牙国家研究理事会(CSIC)和埃尔切米格尔·赫南德斯大学(UMH)联合中心的神经科学研究所(IN)领导的研究,发现了一种调节脑内催产素释放的关键分子机制。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 05:00 GMT+8(北京时间)
#SNAP47 #催产素 #脑内信号传递
Medicalxpress SNAP-47 protein may play key role in regulating how oxytocin is released within the brain The brain not only communicates through fast electrical impulses, it also relies on slower, more diffuse chemical signals that modulate our emotional and social states over time. A study led by the Institute ...
Post #4007 15
抗药性沙门氏菌与芽菜补充剂有关
芽菜补充剂因其丰富的营养成分而被誉为“奇迹树”,但一项研究发现芽菜补充剂与超级细菌爆发有关。研究人员发现芽菜补充剂中的沙门氏菌对多种抗生素都有抗药性,引发了对其安全性的担忧。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 03:20 GMT+8(北京时间)
#芽菜 #沙门氏菌 #抗药性细菌
Medicalxpress Drug-resistant salmonella linked to moringa supplement It's often touted as the "miracle tree" for its dense nutrient profile, but a popular moringa supplement is at the center of a superbug outbreak.
Post #4006 31
科学家发现能拯救香蕉的基因
科学家们在野生香蕉中发现了对抗 Fusarium wilt Subtropical Race 4 的特定基因区域,这种致命病毒威胁着世界各地的 Cavendish 香蕉。虽然这种野生香蕉不可食用,但这项发现为育种者提供了一个开发出既可口又具天然抵抗力的新香蕉…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-19 22:43 GMT+8(北京时间)
#香蕉 #Panama病毒 #基因工程
ScienceDaily Scientists discover gene that could save bananas from deadly Panama disease A major breakthrough could help save the world’s bananas from a devastating disease. Scientists have discovered the exact genetic region in a wild banana that provides resistance to Fusarium wilt Subtropical Race 4 — a destructive strain that threatens Cavendish…
Post #4005 25
超加工食品表现出与烟草类似的成瘾模式,研究人员表示
一项新研究表明,人们无法抗拒的那袋薯片、能量饮料和深夜快餐,不仅仅是缺乏自制力。研究人员发现,超加工食品的营养成分和营养信息的设计,可能会促成人们形成成瘾的行为模式。这种模式与吸烟的成瘾模式有着惊人的相似之处。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 02:43 GMT+8(北京时间)
#超加工食品 #成瘾 #营养学 #研究
Medicalxpress Ultraprocessed foods show addictionlike patterns comparable to tobacco, researchers say That bag of chips you swore you'd only eat a handful of. The energy drink that somehow turns into three. The late-night fast-food run—whether it involves pizza, burgers or tacos—that feels impossible ...
Post #4004 24
科学家发现人体的炎症“关机”开关
研究人员发现人体如何自然停止炎症。他们发现脂肪衍生的分子,称为酯氧脂肪酸酯化产物,能够控制免疫细胞,防止慢性疾病。通过使用药物来增强这些分子的产生,减少疼痛速度和有害炎症细胞的数量。这种发现可能为关节炎、心脏病等与炎症相关的疾…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-19 23:16 GMT+8(北京时间)
#炎症 #免疫细胞 #酯氧脂肪酸酯化产物 #慢性疾病
ScienceDaily Scientists discover the body’s hidden “off switch” for inflammation A new human study has uncovered how the body naturally turns off inflammation. Researchers found that fat-derived molecules called epoxy-oxylipins rein in immune cells that can otherwise drive chronic disease. Using a drug to boost these molecules reduced…
Post #4003 47
为金牌而燃料:营养如何影响奥运选手的力量、速度和恢复
如果我们把身体比作机器,食物就是燃料,那么精英表现就需要高 octane 营养。随着意大利奥运会的继续进行,世界观众正在观看顶级运动员展示人类身体的最高能力。背后,营养学家和营养师正在努力确保这些运动员能够在顶级水平上比赛。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 00:03 GMT+8(北京时间)
#营养 #奥运会 #运动员 #精英表现
Medicalxpress Fueling for gold: How nutrition impacts strength, speed, and recovery in Olympic athletes If our bodies are machines and food is fuel, it is safe to say that elite performance requires high-octane nutrition. As the Winter Olympics continue in Italy, the world watches as top athletes display ...
Post #4002 37
‘饥饿感’确实存在并可能有助于那些没有食欲的人
一项联合研究发现,吸食大麻后迅速出现的“饥饿感”并非虚幻,而是一种认知反应,不受性别、年龄、体重或近期进食状况影响,可能为那些失去食欲的人提供线索。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 00:20 GMT+8(北京时间)
#饥饿感 #大麻 #食欲 #认知反应
Medicalxpress 'The munchies' are real and could benefit those with no appetite The urgent onset of "the munchies" after cannabis use isn't imaginary—it's a cognitive response that occurs regardless of sex, age, weight or recent food consumption and could offer clues to help people ...
Post #4001 39
儿童BMI变化与成年期糖尿病和心脏病的遗传联系
一项昆士兰大学的研究模拟了基因如何影响儿童体质量指数(BMI)随时间的变化,并且如何可能在未来的生活中发展成疾病,如心脏病或2型糖尿病。研究人员使用了来自布里斯托大学的“90年代的孩子”研究的数据,了解了6,291名1至18岁儿童BMI模式…
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 00:29 GMT+8(北京时间)
#BMI #遗传 #糖尿病 #心脏病
Medicalxpress Childhood BMI changes genetically linked to adulthood diabetes and heart disease A University of Queensland study has modeled how genes can influence a child's body mass index (BMI) over time and how they may contribute to the risk of developing diseases, such as heart disease or ...
Post #4000 30
彩色日本米比白米有独特的脂质和更慢的消化速度
研究表明,日本米含有独特的脂质,并且比白米消化速度慢。日本米是全球人口中超过一半的人的主要食物来源,然而我们仍然对其所含的营养成分了解不够。我们所吃的大多数日本米(超过85%)是由淀粉组成的,虽然它也含有蛋白质(约10%)、小量脂肪(…
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 00:40 GMT+8(北京时间)
#日本米 #脂质 #消化速度
Medicalxpress Colorful japonica rice shows unique lipids and slower digestion than white rice Rice feeds more than half of the world's population, yet we still only partly understand the nutrients it contains. More than 85% of the rice we eat is composed of starch, though it also contains some ...
Post #3999 31
飓风过后高温可能使应急响应者在停电期间感到窘迫
研究表明飓风可能通过高温暴露增加了人们的风险。飓风会威胁生命并造成严重的经济损失。然而,其风险不仅仅局限于飓风本身。研究人员发现,在飓风过后,高温可能会使应急响应者感到窘迫,特别是在停电时。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 00:42 GMT+8(北京时间)
#飓风 #高温 #应急响应
Medicalxpress Post-hurricane heat can overwhelm first responders during prolonged outages A new study from the University of Georgia suggests hurricanes may now pose an additional danger to people through heat exposure. Hurricanes threaten lives and cause significant economic damage. But their ...
Post #3998 27
脑干神经细胞调节一分钟内血压的研究
医生通常关注的是一个人的平均血压,但研究越来越表明一分钟内血压的波动同样重要。过度的短期波动是心脏病、中风和脑损伤的强烈独立预测因素。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-19 23:20 GMT+8(北京时间)
#脑干 #神经细胞 #血压 #心脏病 #中风
Medicalxpress Study maps brainstem nerve cells that stabilize blood pressure minute to minute Doctors usually focus on a person's average blood pressure, but research increasingly shows that how much blood pressure fluctuates from moment to moment is just as important. Excessive short-term variability ...
Post #3997 30
针对性放射治疗改善多个脑转移瘤患者生活质量
马萨诸塞州总医院研究人员在一项三期随机试验中发现,使用靶向放射治疗单独攻击肿瘤,相比全脑放射治疗,能显著降低症状负担、改善认知功能和日常生活功能。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 00:00 GMT+8(北京时间)
#靶向放射治疗 #脑转移瘤 #生活质量
Medicalxpress Targeted radiation therapy improves quality of life outcomes for patients with multiple brain metastases, finds study In a Phase III randomized trial, Mass General Brigham researchers found that stereotactic radiation targeting individual tumors led to lower symptom burden, better cognitive outcomes, and better day-to-day ...
Post #3996 35
脑器官模拟体可以被训练来解决目标导向任务
想象一下,你手掌中竖立一条规则,需要不断注意规则的角度并进行许多小调整以确保它不倒下。要想做到这一点需要经过大量的练习。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-20 00:00 GMT+8(北京时间)
#脑器官模拟体 #目标导向任务 #神经科学
Medicalxpress Brain organoids can be trained to solve a goal-directed task Imagine balancing a ruler vertically in the palm of your hand: you have to constantly pay attention to the angle of the ruler and make many small adjustments to make sure it doesn't fall over. It takes ...
Post #3995 37
大脑发育可能持续到30岁,新研究表明
早期的大脑扫描显示,灰质在青少年时期发生了剧烈的变化,因为研究停止在20岁左右,科学家估计发育可能在20多岁完成。但是,最新的大脑成像研究则画出了不同的图景:大脑的关键连接和网络效率在30岁初期仍在演变。
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-19 15:54 GMT+8(北京时间)
#大脑发育 #成年发育 #大脑成像研究
ScienceDaily Brain development may continue into your 30s, new research shows That viral claim that your frontal lobe “isn’t fully developed until 25” turns out to be more myth than milestone. Early brain scans showed that gray matter changes dramatically through the teen years, and because studies stopped around age 20, scientists…
Post #3994 33
电脑脑力游戏可能改善慢性创伤性脑损伤后的白质
研究表明,完成电脑化认知游戏的创伤性脑损伤患者表现出改善的神经可塑性和认知功能。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-19 23:00 GMT+8(北京时间)
#创伤性脑损伤 #电脑化认知游戏 #神经可塑性
Medicalxpress Computer brain games may boost white matter after chronic traumatic brain injury Patients with traumatic brain injuries (TBI) who complete computerized cognitive games show improved neuroplasticity and cognitive performance, according to new research published in Journal of Neurotrauma.
Post #3993 32
近视率飙升或是室内光线不足,而不是仅仅是屏幕
近视率在全球范围内呈现爆炸式增长,常常被认为是无止境的屏幕时间的结果,但新研究表明真正的罪魁祸首可能是更为微妙的因素。美国州立大学眼科学院的科学家提出,近视的原因不仅仅是设备本身,而是长时间的近距离聚焦和室内光线不足可能会悄…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-19 20:48 GMT+8(北京时间)
#近视 #室内光线 #低光环境 #视网膜 #瞳孔收缩
ScienceDaily The nearsightedness explosion may be fueled by dim indoor light, not just screens Myopia is skyrocketing around the world, often blamed on endless screen time — but new research suggests the real culprit may be something more subtle. Scientists at SUNY College of Optometry propose that it’s not just devices, but the combination of prolonged…
Post #3992 37
科学家终于解释了为什么慢性便秘治疗往往会失败
研究人员发现了两种细菌,它们可能是慢性便秘的隐秘原因。这些细菌会分解结肠的保护性粘液层,使粪便变干硬,传统的泻药无法解决这个问题。帕金森病患者,常常在震颤出现前几年就会出现便秘问题,他们体内有这些细菌的水平更高。通过阻止这些细…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-19 21:46 GMT+8(北京时间)
#慢性便秘 #细菌 #帕金森病 #肠道粘液 #泻药
ScienceDaily Scientists finally explain why chronic constipation treatments often fail A newly discovered bacterial duo may be the hidden cause of chronic constipation. The two microbes break down the colon’s protective mucus layer, leaving stool dry and hard — a problem traditional laxatives don’t fix. Parkinson’s patients, who often struggle…
Post #3991 27
阿尔茨海默病的可能生物标志物:REST蛋白水平引起关注
阿尔茨海默病是一种严重的神经退行性疾病,目前尚无有效的治疗方法。研究人员正在寻找可能的生物标志物以早期诊断和治疗该病。REST蛋白水平可能成为阿尔茨海默病的生物标志物,研究人员正在探索其与疾病的关系。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-19 21:52 GMT+8(北京时间)
#阿尔茨海默病 #REST蛋白 #生物标志物
Medicalxpress A possible Alzheimer's biomarker? Why REST protein levels are drawing attention Globally, millions of people are affected by Alzheimer's disease, with around 120,000 individuals in Norway alone. Witnessing a loved one gradually decline because of this devastating condition can be ...
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