Results 101 to 110 of about 91,371 (267)

PolyG Fibrils Coalesce Into Nuclear Ribbons That Engage Proteostasis Machinery in Neuronal Intranuclear Inclusion Disease

Advanced Science, EarlyView.
In NIID, expanded NOTCH2NLC repeats give rise to nuclear polyG inclusions. Tracer‐guided in situ cryo‐electron tomography enables cross‐scale structural analysis from mouse brain to native neuronal nuclei, revealing dense‐core/peripheral‐halo inclusions built from compact polyG ribbons.
Hui Dong, Yongcheng Pan, Zhiyao Tang, Yuxuan Yao, Guicong Zhang, Junpu Wang, Haonan Xiao, Yun Tian, Beisha Tang, Dan Li, Qiang Guo, Ruijun Tian, Qiong Liu, Cong Liu   +13 more
wiley   +1 more source

A Supramolecular Thermal Switch for Precision Pyroptosis via Host−Guest Recognition and Electrostatic Interactions

Advanced Science, EarlyView.
A supramolecular pyroptotic thermal switch encapsulates I3− within β‐cyclodextrin (β‐CD) and undergoes CaCO3 mineralization. Upon lysosomal acidification, CaCO3 is degraded, releasing Ca2+ and I3−. Concurrently, BODIPY activation converts I3− into I2, inducing oxidative stress and Ca2+ overload, which together trigger caspase‐3/GSDME‐mediated ...
Dan Wu, Jie Zhou, Yibin Cao, Kunmin Ping, Borui Zhao, Yanrong Yang, Chunyang Yu, Xinyang Yu, Shaolong Qi   +8 more
wiley   +1 more source

Inflammatory mechanism in Diabetes – Ultrastructural investigations of endocrine pancreas using correlative electron microscopy (STEM) [PDF]

BIO Web of Conferences
Kolb Dagmar, Böhm Sumayya, Hingerl Kerstin, Pieber Thomas, Ehall Barbara, Pernitsch Dominique, Bogensperger DI Lea   +6 more
doaj   +1 more source

Gut Microbial Release of Ferulic Acid From Germinated Quinoa Alleviates Obesity‐Associated Cognitive Impairment by Activating Hippocampal Mitophagy Associated with PINK1/Parkin Pathway

Advanced Science, EarlyView.
Liberation of ferulic acid by gut microbial feruloyl esterase mediates cognitive enhancement of germinated quinoa (GQF) on obese mice. Ferulic acid enriched in GQF is released by gut microbes Roseburia hominis and R. intestinalis and subsequently mediates the neuroprotective effects of GQF on obesity‐induced cognitive decline by activating hippocampal ...
Yongli Lan, Wengang Zhang, Lei Wang, Shiyang Zhao, Yujie Song, Xinze Wang, Yutang Wang, Xijuan Yang, Shaobo Ma, Junlin Ge, Rui Guo, Xuebo Liu   +11 more
wiley   +1 more source

Aberrant GRP78 Phase Transition Sustains Endothelial IRE1α Signaling and Drives Blood–Brain Barrier Failure in Cerebral Amyloid Angiopathy

Advanced Science, EarlyView.
Vascular Aβ40 corrupts GRP78 phase behavior in brain endothelial cells, sustaining IRE1α–TRAF2–JNK signaling and driving apoptosis, tight junction loss, and blood–brain barrier failure in cerebral amyloid angiopathy. Pharmacological IRE1α inhibition restores vascular integrity, reduces leakage, and improves functional outcomes, revealing a targetable ...
Honglin Zheng, Qiang Li, Haiyang Luo, Yapei Yuan, Na Zhang, Yongting Lu, Suying Duan, Jieshi Zhong, Hang Zhang, Chenyang Liu, Yaochong Zhang, Wenzhuo Zhao, Yaxuan Song, Tuo Wang, Si Yan, Yapeng Li, Han Liu, Yuan Gao, Zongping Xia, Yuming Xu   +19 more
wiley   +1 more source

Opantimirs: A class of antagonizing microRNAs that upregulate Opa1 and improve mitochondrial and disuse myopathies

Cell Reports Medicine
Summary: Alterations in mitochondrial ultrastructure and reduced levels of the crista-shaping protein Opa1 are key features of mitochondrial myopathies and aging.
Andre Djalalvandi, Keisuke Takeda, Francesca Grespi, Hualin Fan, Tiago Branco Fonseca, Leonardo Nogara, Saman Sharifi, Carlotta Barison, Martina Semenzato, Akiko Omori, Raffaele Cerutti, Davide Steffan, Lorenza Tsansizi, Valeria Balmaceda, Lukas Alan, Camilla Bean, Bert Blaauw, Carlo Viscomi, Luca Scorrano   +18 more
doaj   +1 more source

A Blood‐Derived Factor Rescues ALS: Platelet Factor 4 Activates OPTN‐Dependent Autophagy to Clear SOD1 Aggregates Independently of PINK1

Advanced Science, EarlyView.
Systemic platelet factor 4 (PF4) is significantly depleted in amyotrophic lateral sclerosis (ALS). Peripheral PF4 replenishment restores central proteostasis by driving OPTN‐dependent, PINK1‐independent selective autophagy in motor neurons. This intervention effectively clears toxic SOD1 aggregates, blunts glial activation, and preserves neuromuscular ...
Qingjian Xie, Yanbo Zhu, Wenhua Jiang, Haobo Xie, Yaojia Li, Mengjie Hu, Kezheng Li, Huan Yu, Yixuan Pan, Chaoyi Jiang, Xueqin Song, Dongsheng Fan, Binbin Deng   +12 more
wiley   +1 more source

Ultrastructural study of the superior tarsal Müller muscle in ptosis patients undergoing müllerectomy

Journal of the Egyptian Ophthalmological Society
Objective Is using transmission electron microscopy to examine the ultrastructure of Müller’s muscle (MM) specimens obtained from Müllerectomy surgery in selected patients with ptosis of various etiologies.
Yasmine M.M. Shaaban, Manal I. Salman, Maha M. Zakaria, Zafer M.F. Ismail   +3 more
doaj   +1 more source

Rocket‐Inspired Sequentially Targeted Nanotherapeutics for Mitochondrial Regulation and Inflammatory Reprogramming in Ischemic Stroke

Advanced Science, EarlyView.
A novel neutrophil‐hitchhiking, rocket‐inspired nanoplatform is developed to cross the blood‐brain barrier for sequential, spatiotemporal drug delivery. By responsive surface transformation in the ischemic penumbra, it precisely targets mitochondria to suppress Drp1‐mediated fission.
He Bai, Zihao Yong, Yang Li, Qingmin Chen, Yong Liu, Xiaomeng Guo, Fukai Li, Shicheng Tang, Zhuo Yang, Yufei Zhang, Ruwei Jie, Xiaohong Lv, Huacheng Wang, Chunming Huang, Liwei Xie, Jianqi Xiao, Qingchun Mu, Longguang Tang   +17 more
wiley   +1 more source

Essential lipid autacoids rewire mitochondrial energy efficiency in metabolic dysfunction‐associated fatty liver disease

Hepatology, EarlyView., 2022
Increased liver content of DHA‐derived small lipid autacoids (i.e resolvin D1 and maresin 1) associates with enhanced mitochondrial oxidative phosphorylation, fatty acid β‐oxidation and bioenergetic metabolic flux. These features provide hepatic protection from steatotic, pro‐inflammatory and fibrogenic insults.
Cristina López‐Vicario, David Sebastián, Mireia Casulleras, Marta Duran‐Güell, Roger Flores‐Costa, Ferran Aguilar, Juan José Lozano, Ingrid W. Zhang, Esther Titos, Jing X. Kang, Antonio Zorzano, Makoto Arita, Joan Clària   +12 more
wiley   +1 more source