Results 81 to 90 of about 17,764 (195)

Ammonia Metabolism in the Aging Liver: Emerging Mechanistic Insights

Aging Cell, Volume 25, Issue 8, August 2026.
Liver aging may weaken ammonia‐detoxification reserve by disrupting mitochondrial ureagenesis, GS‐mediated scavenging, glutamine metabolism, and metabolic zonation. This emerging framework links impaired nitrogen handling to potential hepatic stress amplification and systemic crosstalk, while highlighting the need for direct validation in physiological
Heng Zhang, Guangyu Liang, Anding Liu
wiley   +1 more source

Metformin attenuates cuprizone-induced mitochondrial dysfunction and senescence-associated changes in primary neuronal cells

Cell Structure and Function
Mitochondrial dysfunction and cellular senescence are key features of brain aging and neurodegenerative diseases. Cuprizone (CPZ), a mitochondrial toxin, induces oxidative stress, abnormal lipid metabolism, and iron accumulation in neurons and ...
Yeojin Kim, Hyunbum Jeon, Sun-Yeong Gwon, Sehyun Chae, Ji Young Mun   +4 more
doaj   +1 more source

Progerin Hinders Autophagy Flux at Its Final Stages in Hutchinson‐Gilford Progeria Syndrome Cells, Preventing Its Own Autophagic Degradation

Aging Cell, Volume 25, Issue 8, August 2026.
We demonstrated that progerin induces the formation of autophagosomes but impairs their maturation and subsequent fusion with lysosomes. Progerin impedes proper autophagy flux, thus preventing its own autophagic degradation. Selinexor treatment improved both autophagosome maturation and autophagosome‐lysosome fusion, which ultimately led to effective ...
Ian García‐Aguirre, Jesús Alejandro Reyes‐Martínez, Juan Unzueta, Francisco Guevara‐Namorado, Solangy Lizcano‐Meneses, Susana Gonzalo, Angel Baldan, Claudia Rangel, Gerardo J. Alanis‐Funes, Francisco Garcia‐Sierra, Kevin Ruiz‐Fajardo, Simon Gormes‐Pinchanski, Susana Castro‐Obregón, Aranza Meza‐Dorantes, Rocio Alejandra Chavez‐Santoscoy, Isabel Arrieta‐Cruz, Paola Tristán‐Aburto, Jonathan J. Magaña, Bulmaro Cisneros   +18 more
wiley   +1 more source

Mesenchymal Stromal Cell Rejuvenation Strategies to Enhance Clinical Translation in Cell Therapy

Aging Cell, Volume 25, Issue 8, August 2026.
MSC rejuvenation strategies and functional outcomes. Aging‐associated alterations in MSCs, including increased IL‐6/IL‐8 secretion, ROS accumulation, epigenetic drift, and mitochondrial dysfunction, impair stemness. Rejuvenation approaches, epigenetic modulation (VPA, AZAc, OSKM, TERT), metabolic interventions (resveratrol, calcitriol, NMD, asprosin ...
Astrid Sodomaco, Irene Bernardi, Aretha Rambaldi, Pierluigi Lombardi, Maura Rossi, Francesca Paris, Lucia Manzoli, Stefano Ratti, Francesco Alviano   +8 more
wiley   +1 more source

Mesopic microperimetry in Stargardt disease: Application and reliability

Acta Ophthalmologica, Volume 104, Issue 5, Page e544-e554, August 2026.
Abstract Purpose Mesopic microperimetry (mMP) is a promising functional endpoint in clinical trials for Stargardt disease type 1 (STGD1). This study evaluated the test–retest variability of mMP and influencing factors, which is essential for ensuring reliability in future STGD1 trials.
Sybren H. Kootstra, Jeroen A. A. H. Pas, Patty P. A. Dhooge, Steffen Schmitz‐Valckenberg, Maurizio Battaglia Parodi, Philipp Herrmann, Frank G. Holz, Andrew J. Lotery, Katarina Stingl, Thomas H. Wheeler‐Schilling, Camiel J. F. Boon, Carel B. Hoyng, Soraprazan Consortium   +12 more
wiley   +1 more source

Toward systemic lipofuscin removal

Rejuvenation Research
Lipofuscin is indigestible garbage that accumulates in the autophagic vesicles and cytosol of post-mitotic cells with age. Drs. Brunk and Terman postulated that lipofuscin accumulation is the main or at least a major driving factor in aging. They even posited that the evolution of memory is the reason why we get lipofuscin at all, as stable synaptic ...
openaire   +2 more sources

Resistance training does not increase myocellular garbage dumps: A pilot study on lipofuscin in skeletal muscle fibers of resistance trained young men

Physiological Reports
Lipofuscin (LF) is an intracellular aggregate associated with proteostatic impairments, especially prevalent in nondividing skeletal muscle fibers. Reactive oxygen species (ROS) drive LF‐formation. Resistance training (RT) improves muscle performance but
Daniel Jacko, Lukas Masur, Kirill Schaaf, Jonas Zacher, Käthe Bersiner, Markus deMarées, Wilhelm Bloch, Sebastian Gehlert   +7 more
doaj   +1 more source

Structural Heterogeneity of TDP‐43 Fragments in Alzheimer's Disease and Primary Age‐Related Tauopathy by Artificial Intelligence (AI)–Based 3D Segmentation

Neuropathology and Applied Neurobiology, Volume 52, Issue 4, August 2026.
Immunostaining of anti‐phosphorylated TDP‐43 (pTDP‐43), TDP‐43 C‐terminal fragment (TDP‐43 C) and TDP‐43 N‐terminal fragment (TDP‐N), combined with an AI‐based object recognition, reconstruction and automatic 3D morphometric analysis pipeline in limbic regions revealed that distinct TDP‐43 fragment aggregation patterns, underscoring region‐specific ...
Gokhan Uruk, Rodolfo G. Gatto, Nadia Hossain, Jennifer L. Whitwell, R. Ross Reichard, Keith A. Josephs   +5 more
wiley   +1 more source

Exogenous Iron Induces Mitochondrial Lipid Peroxidation, Lipofuscin Accumulation, and Ferroptosis in H9c2 Cardiomyocytes

Biomolecules
Lipid peroxidation plays an important role in various pathologies and aging, at least partially mediated by ferroptosis. The role of mitochondrial lipid peroxidation during ferroptosis remains poorly understood.
Konstantin G. Lyamzaev, He Huan, Alisa A. Panteleeva, Ruben A. Simonyan, Armine V. Avetisyan, Boris V. Chernyak   +5 more
doaj   +1 more source

Spotlight on fundus autofluorescence

Clinical Optometry, 2018
Ana M Calvo-Maroto,1 Alejandro Cerviño2 1Department of Ophthalmology, Clínica Universidad de Navarra, University of Navarra, Madrid, Spain; 2Optometry Research Group, Department of Optics and Optometry and Vision Sciences, University of ...
Calvo-Maroto AM, Cerviño A
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