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Post #4150 140
定量成像框架检测出一种新型痴呆形式: limbic-主要年龄相关性TDP-43脑炎症(LATE)
一项基于PET和MRI的定量成像方法可以客观地识别一种最近被认可的痴呆类型——limbic-主要年龄相关性TDP-43脑炎症(LATE),这通常被误认为是阿尔茨海默病。该研究发表在《核医学杂志》上,可能有助于在临床上更早地区分LATE和阿尔茨海默病…
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-27 01:00 GMT+8(北京时间)
#limbic主要年龄相关性TDP43脑炎症 #LATE #阿尔茨海默病 #定量成像 #PET
Medicalxpress Quantitative imaging framework detects emerging form of dementia, limbic-predominant age-related A novel quantitative PET- and MRI-based imaging approach can objectively identify a recently recognized type of dementia—limbic-predominant age-related TDP-43 encephalopathy, or LATE—that is often ...
Post #4149 65
脑部的Google地图:4D大脑地图揭示生长机制
研究人员开发了一种四维大脑地图,通过点击鼠脑不同区域,观察其在不同阶段的变化,揭示了大脑发育和生长的机制,具有重要的科学意义。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-27 01:00 GMT+8(北京时间)
#大脑地图 #4D #生长机制 #脑发育
Medicalxpress A 'Google Earth' for the brain: What a 4D atlas reveals about growth On the computer screens, the mouse brain is shown from several angles. Then you click, and a small area of the brain is highlighted in color. With the next click, something happens to the color markers. ...
Post #4148 53
巴塞尔大学研发潜在治疗不可治愈肌肉萎缩症的基因疗法
巴塞尔大学的研究人员开发了一种基因疗法,可能用来治疗儿童的一种罕见和目前为止不可治愈的肌肉疾病。研究表明,在动物模型中,单次治疗足以稳定肌肉和神经并停止疾病的进展。现在的挑战是将这一有希望的疗法带入临床试验。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-27 00:00 GMT+8(北京时间)
#基因疗法 #肌肉萎缩症 #巴塞尔大学
Medical Xpress First successes in the development of a gene therapy for incurable LAMA2-related muscular dystrophy Researchers at the University of Basel have developed a gene therapy that could potentially treat a rare and currently fatal muscle disease in children. The study shows in animal models that a single ...
Post #4147 38
脊髓损伤患者风险预测模型:识别神经源性膀胱风险
一项新风险预测模型显示,在脊髓损伤(SCI)后,能够较好地预测神经源性膀胱(NB)的风险,并指导临床干预,据英国医院医学杂志发表的一项研究显示。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 22:40 GMT+8(北京时间)
#脊髓损伤 #神经源性膀胱 #风险预测模型
Medicalxpress New prediction model IDs people with spinal cord injury at risk for neurogenic bladder A new risk prediction model shows good predictive value in identifying risk for neurogenic bladder (NB) after spinal cord injury (SCI) and guiding clinical interventions, according to a study published ...
Post #4146 46
科学家发现糖类层在银屑病中的作用
研究人员发现,免疫细胞表面有一层类似凝胶的糖类覆盖物,这层覆盖物在银屑病中起着重要作用。研究人员发现,免疫细胞通过脱落这一外层来帮助它们离开血液并进入炎症皮肤。这一发现挑战了长期以来认为只有血管壁发生变化的想法。该发现可能会…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-25 21:11 GMT+8(北京时间)
#糖类 #银屑病 #免疫细胞
ScienceDaily Scientists discover hidden sugar layer behind psoriasis A gel-like sugar coating on immune cells has been found to play a starring role in psoriasis. Researchers discovered that immune cells shed this outer layer to help them exit the bloodstream and enter inflamed skin. This challenges the long-held idea that…
Post #4145 38
关节细胞行为揭示骨骼生长障碍的新靶点
研究表明,骨骼生长障碍(Achondroplasia)导致的短肢矮小症与神经系统症状和并发症有关,这主要是由于脊髓周围的骨骼结构狭窄。尽管短肢矮小症是最常见的矮小症原因,但其机制仍未被充分分析,因此当前的治疗方法不够有效。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 18:00 GMT+8(北京时间)
#骨骼生长障碍 #短肢矮小症 #神经系统症状
Medicalxpress Chondrocytes' behavior reveals novel targets for bone growth disorders Achondroplasia, also known as short-limb dwarfism, is associated with neurological symptoms and complications due to narrowing of the skeletal structures surrounding the spinal cord. Despite achondroplasia ...
Post #4144 36
大规模回顾性研究表明运动对关节软骨病疼痛可能不大有帮助
一项涵盖了数十个临床试验的新分析表明,长期以来被视为关节软骨病首选治疗方法的运动疗法可能只能提供微小且短暂的缓解,甚至在某些情况下可能不如不做任何事情。研究人员发现,对于膝盖关节软骨病疼痛的益处微小且在更大的或更长期的研究…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-26 12:43 GMT+8(北京时间)
#关节软骨病 #运动疗法 #临床试验
ScienceDaily Massive review suggests exercise may do little for osteoarthritis pain A sweeping new analysis of the evidence suggests that exercise therapy — long promoted as a first-line treatment for osteoarthritis — may offer only small and short-lived relief, and in some cases might be no better than doing nothing at all. After reviewing…
Post #4143 22
带状疱疹疫苗可能会减缓生物学衰老并降低炎症
一项针对超过3800名70岁以上美国人的大型研究发现,接受带状疱疹疫苗接种的人比未接种疫苗的人更慢地生物学衰老。研究人员发现疫苗接种者有较低的慢性炎症水平和与衰老相关的基因活跃度变化速度,表明疫苗可能可以缓解身体的“炎症衰老”——…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-26 15:47 GMT+8(北京时间)
#带状疱疹疫苗 #生物学衰老 #炎症 #衰老
ScienceDaily Shingles vaccine may slow biological aging and reduce inflammation A shingles shot might do more than prevent a painful rash — it could actually help slow down the aging process. In a large national study of more than 3,800 Americans age 70 and older, those who received the shingles vaccine showed slower biological aging…
Post #4142 23
研究发现,素食者在80岁以上的人群中更不容易活到100岁
避免食用肉类可能会降低达到100岁的几率,但仅限于体弱、体重过轻的老年人。在老年期,保持肌肉力量和身体强壮比长期预防疾病更为重要。研究发现,包括鱼、鸡蛋或牛奶在饮食中的老年人,其活到100岁的几率与食肉者相同,这表明关键营养素可能是…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-26 16:57 GMT+8(北京时间)
#素食 #老年人 #营养 #健康
ScienceDaily Study finds vegetarians over 80 less likely to reach 100 Avoiding meat might slightly lower the odds of reaching 100 — but only for frail, underweight seniors. In very old age, staying strong and maintaining muscle matters more than long-term disease prevention. Older adults who included fish, eggs, or dairy were…
Post #4141 71
NIH建议胚胎干细胞研究转向患者优先
美国国立卫生研究院(NIH)正在寻求公众意见,评估新兴生物技术的成熟度,以减少或替代依赖于人类胚胎干细胞的研究。
来源: NIH | 阅读全文
#NIH #胚胎干细胞 #生物技术
Post #4140 50
世卫组织总干事访问约旦,认可卫生系统提供、紧急救援和心理健康进展的强大合作
世卫组织总干事德德罗斯·阿达诺姆·盖布雷西斯(Dr Tedros Adhanom Ghebreyesus)今天结束了他对约旦哈希姆王朝的两天国事访问,强调了世卫组织与约旦在普遍卫生覆盖(UHC)、心理健康和人道主义卫生行动领域的强大合作。
来源: WHO | 阅读全文
发布时间: 2026-02-26 02:06 GMT+8(北京时间)
#世卫组织 #约旦 #卫生系统 #紧急救援 #心理健康
World Health Organization WHO Director-General visits Jordan to recognize strong collaboration on health system delivery, emergency relief and advancing… The Director-General of the World Health Organization, Dr Tedros Adhanom Ghebreyesus, today concluded the first day of his two-day State visit to the Hashemite Kingdom of Jordan, underscoring the strong partnership between WHO and Jordan across the areas…
Post #4139 33
中年男性因‘永恒化学品’而更容易老化
研究人员发现,两种非遗传性永恒化学品,包括非氟九烷酸(PFNA)和非氟八烷磺酰胺(PFOSA),会加速中年男性生物老化,但对女性无影响。这些结果表明,新型永恒化学品并不一定是无害的,应考虑加强监管。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 13:00 GMT+8(北京时间)
#永恒化学品 #生物老化 #中年男性
Medicalxpress Middle-aged men are most vulnerable to faster aging due to 'forever chemicals,' study finds PFAS have wide-ranging toxic effects. Now, researchers have found that two non-legacy PFAS, namely perfluorononanoic acid (PFNA) and perfluorooctanesulfonamide (PFOSA), appear to speed up biological aging ...
Post #4138 25
中年健康饮食可降低老年脑退行性风险
研究人员发现,中年人健康饮食可以降低老年脑退行性风险。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 10:00 GMT+8(北京时间)
#脑退行性 #中年 #健康饮食
Medicalxpress Eating healthy in middle age can lower risk of brain decline, study finds What's on your plate today can affect your brain aging as a senior, a new study says. Middle-aged people who eat healthily have a lower risk of brain decline in old age, researchers report in JAMA Neurology.
Post #4137 20
分心?你的脑波节律可能是原因
科学家可能找到了为什么弹出窗口或通知会吸引我们的注意力。我们的注意力在一个循环中,七到十次每秒。这种节奏可能对于生存至关重要,因为它防止我们过度专注于环境中的某一事物。它可以帮助我们在寻找停车位时看到停车的汽车,或者在骑自行…
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 08:20 GMT+8(北京时间)
#脑波 #注意力 #节律
Medicalxpress Frequently distracted? Your brain rhythms may be to blame Scientists may have new answers to why pop-ups or notifications grab our attention. Turns out our attention is on a cycle, shifting seven to 10 times per second. This rhythmic occurrence may be crucial ...
Post #4136 29
平民面临爆炸性武器的日益增加的伤害,17国研究发现
一项由昆士兰大学(University of Queensland)发起的研究发现,近90%的受伤害者和受害者是平民。该研究团队收集了105,931名受伤害者和受害者的信息,涵盖了亚洲、欧洲、非洲和南美洲的17个国家和地区。该研究发表在《Communications …
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 07:20 GMT+8(北京时间)
#爆炸性武器 #平民伤害 #研究
Medicalxpress Civilians face increasing harm from deadly explosive weapons, 17-country study finds A University of Queensland study has found that almost 90% of people killed and injured by landmines and similar weapons are civilians. Dr. Stacey Pizzino from UQ's School of Public Health, together with ...
Post #4135 24
雷特综合征中的脑血管渗漏与微RNA有关
麻省理工学院的研究人员发现,导致雷特综合征的两种常见基因突变各自触发了一条分子链反应,破坏大脑血管的结构完整性,导致渗漏。研究表明,微RNA-126-3p的过表达是问题的根源,降低其水平有助于修复血管缺陷。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 05:40 GMT+8(北京时间)
#雷特综合征 #微RNA #脑血管渗漏
Medicalxpress In Rett syndrome, leaky brain blood vessels traced to microRNA MIT researchers have discovered that two common genetic mutations that cause Rett syndrome each set off a molecular chain of events that compromises the structural integrity of developing brain blood ...
Post #4134 23
保持神经元正确的路径:科学家们找到了大脑发育中的皮层层化的关键驱动力
大脑外层皮层是负责更高级认知功能的区域,其正确发育需要新生成的神经元在特定时间到达精确的位置。研究人员通过研究大脑发育过程中神经元的迁移和层化发现了关键驱动力。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 06:00 GMT+8(北京时间)
#大脑发育 #神经元迁移 #皮层层化
Medicalxpress Keeping neurons on the right path: Scientists identify key driver of cortical layering during brain development The cerebral cortex, the brain's outermost region responsible for higher cognitive functions, depends on a highly ordered, layered structure. Its proper development requires newly generated neurons to ...
Post #4133 21
Philadelphia,宾夕法尼亚州,2021年,城市孕妇和新生儿的淋巴细胞腺病毒血清学流行病学
这项研究调查了2021年费城地区孕妇和新生儿的淋巴细胞腺病毒血清学流行病学。研究人员发现了该病毒的流行病学特征,并对其在城市环境中的传播进行了分析。该研究对了解淋巴细胞腺病毒在城市环境中的传播模式和影响有重要意义。
来源: CDC | 阅读全文
发布时间: 2026-02-25 13:00 GMT+8(北京时间)
#淋巴细胞腺病毒 #流行病学 #城市环境 #孕妇 #新生儿
Emerging Infectious Diseases journal Lymphocytic Choriomeningitis Virus Seroprevalence among Urban Pregnant Women and Newborns, Philadelphia, Pennsylvania, USA, 2021 LCMV Seroprevalence among Women and Newborns
Post #4132 19
足球运动员头部重复撞击与炎症相关脑部变化和记忆力下降
研究发现,曾经从事过足球运动的大学和职业球员,炎症水平升高与脑结构变化有关,进而导致记忆力下降。该研究发表在《神经学》杂志上,但不能证明因果关系,只是表明相关性。
来源: Medical Xpress | 阅读全文
发布时间: 2026-02-26 05:00 GMT+8(北京时间)
#足球 #头部撞击 #炎症 #脑部变化 #记忆力下降
Medicalxpress In football players with repeated head impacts, inflammation related to brain changes and worse memory In former college and professional football players, a new study has found higher levels of inflammation were associated with worse brain structure, which in turn was related to worse memory. The study, ...
Post #4131 21
微塑料在90%的前列腺癌肿瘤中被发现,研究结果公布
研究人员在一项新研究中发现,几乎所有检查的前列腺癌肿瘤中都存在微塑料。肿瘤组织中塑料的含量约为附近的健康前列腺组织的2.5倍。科学家表示,这是第一项直接测量前列腺肿瘤中塑料颗粒的西方研究。需要更多研究,但发现表明微塑料暴露可能…
来源: ScienceDaily | 阅读全文
发布时间: 2026-02-25 14:28 GMT+8(北京时间)
#微塑料 #前列腺癌 #肿瘤 #癌症 #研究
ScienceDaily Microplastics found in 90% of prostate cancer tumors, study reveals Researchers have detected microplastics in nearly all prostate cancer tumors examined in a new study. Tumor tissue contained about 2.5 times more plastic than nearby healthy prostate tissue. Scientists say this is the first Western study to directly measure…
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