Results 141 to 150 of about 235,228 (311)

Microglia activation mediates circadian rhythm disruption induced cognitive impairment in mice

openSi ritiene che la perturbazione dei ritmi circadiani possa contribuire come fattore nell’insorgenza della malattia di Alzheimer. Nonostante numerosi studi suggeriscano un’associazione tra queste perturbazioni ed una compromissione delle funzioni ...
DE CHECCHI, FEDERICO
core  

Microglia undergo sex-dimorphic transcriptional and metabolic rewiring during aging

Journal of Neuroinflammation
Microglia, the brain’s resident macrophages, maintain brain homeostasis and respond to injury and infection. During aging they undergo functional changes, but the underlying mechanisms and their contributions to neuroprotection versus neurodegeneration ...
Seokjo Kang, Emily Y. Ko, Amelia E. Andrews, Juliana E. Shin, Karina J. Nance, Pijus K. Barman, Peter S. Heeger, Willard M. Freeman, Bérénice A. Benayoun, Helen S. Goodridge   +9 more
doaj   +1 more source

A Brain‐Penetrant Nanobody Reveals GSK3β‐Driven Proline‐Directed Phosphorylation as a Master Regulator of Ischemic Neurodegeneration

Advanced Science, EarlyView.
A brain‐targeted nanoparticle enables delivery of a therapeutic nanobody (Nb.29E9) that inhibits pathogenic GSK3β signaling. This intervention restores AMPK/mTORC1/TGFβ homeostasis, attenuates neuroinflammation and oxidative stress, and promotes long‐term functional recovery after ischemic stroke.
Lan Li, Muyang Li, Lei Sun, Ying Yang, Yuanshun Wu, Ziyi Yin, Anni Wang, Peiyang Zhou, Shaoxiang Luo, Jian Chen, Jun Qin, Zhibing Ai, Zilong Yuan, Zhiqiang Dong, Min Zhang   +14 more
wiley   +1 more source

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng, Zhicheng Wang, Xin Zhou, Shuya Wang, Xiaojing Shi, Tingli Xiong, Ruishi Li, Yuting Lin, Zhen Chen, Jiawen Wei, Fei Li, Jinwen Ge, Kelong Ai, Chong Liu, Guiming Deng   +14 more
wiley   +1 more source

Microplastics‐Induced Gut Microbiota Dysbiosis Accelerates Alzheimer's‐Like Pathology and Cognitive Decline via the Gut–Brain Axis

Advanced Science, EarlyView.
Microplastics (MPs) breach the gut‐brain axis by triggering taurine‐depleting microbiota dysbiosis that accelerates Alzheimer‐like pathology in 5XFAD mice. Taurine supplementation normalizes autophagy, microglial quiescence, and cognition, and plasma taurine inversely tracks cognitive decline in ADNI participants, revealing a readily translatable ...
Zifeng Wu, Jiarong Yang, Miaoxuan Zhang, Yi Li, Zhuling Tu, Ji Wang, Jin‐Tai Yu, Kun Guo, Rongcan Luo   +8 more
wiley   +1 more source

Astrocytic FDX1 Contributes to Copper Dyshomeostasis‐associated Synaptic Dysfunction in Depression and Is Modulated by Exercise

Advanced Science, EarlyView.
Chronic stress disrupts copper homeostasis and promotes copper accumulation in the prelimbic cortex, leading to astrocytic FDX1 upregulation. Elevated astrocytic FDX1 impairs calcium signaling, induces structural atrophy, and disrupts synaptic function, contributing to depressive‐like behaviors. Physical exercise reverses these alterations by restoring
Lina Gao, Rongji Hui, Zhibo Tang, Tao Feng, Zhihang Hu, Xiaoqing Zhang, Ping Jiang, Hui Zhao, Kwok‐Fai So, Tianyuan Luo, Yanzhou Chang, Lan Yan   +11 more
wiley   +1 more source

Microglia target synaptic sites early during excitatory circuit disassembly in neurodegeneration

iScience
Summary: During development, microglia prune excess synapses to refine neuronal circuits. In neurodegeneration, understanding the role of microglia-mediated synaptic pruning in circuit remodeling and dysfunction is important for developing therapies ...
Alfred Yu, Camille Fang, Li Xuan Tan, Aparna Lakkaraju, Luca Della Santina, Yvonne Ou   +5 more
doaj   +1 more source

Mood Disorder Begins in the Mouth: Periodontitis Mediates Anxiety‐Like Behaviors

Advanced Science, EarlyView.
ABSTRACT The previous study elucidated that the C‐reactive protein (CRP)/bone morphogenetic protein 4 (BMP4) signaling pathway mediates periodontitis‐associated anxiety‐like behaviors in rats. This molecular crosstalk along the periodontal‐hippocampal axis provides novel insights into the etiology and mechanisms of emotional disorders. However, several
Zhigang Chen, Xing Li
wiley   +1 more source

Microglial Distribution and Apoptosis in Fetal Rat Brain

, 2009
By histochemical and immunocytochemical techniques, this study aimed to determine the possible involvement of apoptosis in regulating the microglial distribution in fetal rat brain.
SHIEH, JENG-YUNG;WEN, CHEN-YUAN, 謝正勇;溫振源   +1 more
core  

Biomimetic Hydrogel System Targeting S100A8 Centered Neuroimmune Crosstalk and Hypoxia Induced Neuronal Injury

Advanced Science, EarlyView.
A biomimetic hydrogel (HPC@Gel) was developed for traumatic brain injury repair by combining oxygen‐carrying hemoglobin nanoparticles and anti‐inflammatory carbon quantum dots within a brain‐like matrix. The system alleviated hypoxia, reduced harmful neuroimmune signaling, protected neurons, supported neural regeneration, and improved neurological and ...
Peng Liu, Xiaoyang Wu, Xiaoyin Liu, Yuyan Wang, Shichao Jiang, Kai Wu, Gaowei Li, Jie Ding, Chengheng Wu, Dan Wei, Jing Sun, Hongsong Fan, Liangxue Zhou   +12 more
wiley   +1 more source