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Differential impacts of ribosomal protein haploinsufficiency on mitochondrial function.
J Cell Biol
March 2025
Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA.
The interplay between ribosomal protein (RP) composition and mitochondrial function is essential for energy homeostasis. Balanced RP production optimizes protein synthesis while minimizing energy costs, but its impact on mitochondrial functionality remains unclear. Here, we investigated haploinsufficiency for RP genes (rps-10, rpl-5, rpl-33, and rps-23) in Caenorhabditis elegans and corresponding reductions in human lymphoblast cells.
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Alzheimers Dement
December 2024
University of Kansas Alzheimer's Disease Research Center, Fairway, KS, USA.
Background: Cardiorespiratory fitness (CRF) has been repeatedly linked to healthy brain and cognitive outcomes in aging. Treadmill-based graded maximal exercise testing (GXT) is a common technique for measuring CRF in exercise studies. Because it is often challenging for older adults to reach the commonly accepted criterion measure of oxygen consumption, alternate, submaximal measures have been explored.
View Article and Find Full Text PDFBiomarkers.
Alzheimers Dement
December 2024
Laboratory of Clinical Investigation, National Institute on Aging, Intramural Research Program, Baltimore, MD, USA.
Background: Age-related white matter (WM) deterioration has been associated with several neurodegenerative diseases, including Alzheimer's disease. Studies suggest that cardiorespiratory fitness (CRF) is important in preserving WM structure and function. However, clinical investigations of the relationship between myelin integrity and CRF are lacking.
View Article and Find Full Text PDFAcute Decompensated Heart Failure: Structural and Functional Changes in Mitochondria.
Kardiologiia
December 2024
Research Institute of Cardiology, Branch of the Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk.
Aim: Comparative assessment of structural changes in cardiomyocyte mitochondria of the right atrial appendage and the mitochondrial respiratory function in peripheral blood leukocytes in a cohort of patients after acute decompensated heart failure (ADHF) and with stable chronic heart failure of ischemic etiology with reduced ejection fraction (CHFrEF) or moderately reduced ejection fraction (CHFmrEF) of the left ventricle.
Material And Methods: The study analyzed 40 micrographs of right atrial appendage cardiomyocytes obtained from 12 patients with CHFrEF and CHFmrEF. The study protocol was registered on ClinicalTrials.
Single-Cell Multi-omics Assessment of Spinal Cord Injury Blocking via Cerium-doped Upconversion Antioxidant Nanoenzymes.
Adv Sci (Weinh)
January 2025
Department of Orthopedics, The First Affiliated Hospital, Jinan University, Guangzhou, 510632, China.
Spinal cord injury (SCI) impairs the central nervous system and induces the myelin-sheath-deterioration because of reactive oxygen species (ROS), further hindering the recovery of function. Herein, the simultaneously emergency treatment and dynamic luminescence severity assessment (SETLSA) strategy is designed for SCI based on cerium (Ce)-doped upconversion antioxidant nanoenzymes (Ce@UCNP-BCH). Ce@UCNP-BCH can not only efficiently eliminate the SCI localized ROS, but dynamically monitor the oxidative state in the SCI repair process using a ratiometric luminescence signal.
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