On average, aging is associated with unfavorable changes in cellular metabolism, which are the processes involved in the storage and expenditure of energy. However, metabolic dysregulation may not occur to the same extent in all older individuals as people age at different rates. Those who are aging rapidly are at increased risk of adverse health outcomes and are said to be "frail." Here, we explore the links between frailty and metabolism, including metabolic contributors and consequences of frailty. We examine how metabolic diseases may modify the degree of frailty in old age and suggest that frailty may predispose toward metabolic disease. Metabolic interventions that can mitigate the degree of frailty in people are reviewed. New treatment strategies developed in animal models that are poised for translation to humans are also considered. We suggest that maintaining a youthful metabolism into older age may be protective against frailty.
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http://dx.doi.org/10.1016/j.cmet.2024.03.012 | DOI Listing |
Nutrients
January 2025
Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, No. 76, Yanta West Road, Xi'an 710061, China.
As a widely consumed, nutritious, and affordable food, eggs and their derivatives' impacts on obesity remain inconclusive. In this study, we aimed to determine the association between egg and egg-derived cholesterol consumption, and their change trajectories, with obesity among Chinese adults. : Longitudinal data collected by the China Health and Nutrition Survey from 1997 to 2015 were analyzed.
View Article and Find Full Text PDFJ Clin Med
January 2025
Geriatrics Department, Geriatrics Clinical Management Area, Monte Naranco Hospital-Central University Hospital of Asturias, 33011 Oviedo, Spain.
Frailty and severe aortic stenosis (AoS) are critical conditions in older adults, both of which share pathophysiological mechanisms including chronic inflammation and calcium metabolism dysregulation, potentially influencing the development and progression of these conditions. This study aimed to analyze systemic inflammation and calcium homeostasis biomarkers and their associations with frailty in older adults with severe AoS. : This prospective study included 191 patients aged ≥75 years with severe AoS who were candidates for aortic valve replacement and were evaluated at a Geriatrics Frailty Assessment and Intervention Clinic.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), Istituto di Ricovero e Cura a Carattere Scientifico, 33081 Aviano, Italy.
The treatment of Non Small Cell Lung Cancer (NSCLC) has been revolutionised by the introduction of targeted therapies. With the improvement of response and frequently of overall survival, however, a whole new set of adverse events emerged. In fact, due to the peculiar mechanism of action of each one of the tyrosine kinase inhibitors and other targeted therapies, every drug has its own specific safety profile.
View Article and Find Full Text PDFJ Frailty Aging
February 2025
Division of Experimental Medicine, McGill University, Montreal, QC Canada; Division of Cardiology, Jewish General Hospital, Montreal, QC Canada. Electronic address:
Background: Frailty is a syndrome associated with age-related impairments in multiple organ systems, of which the autonomic nervous system plays a fundamental role. Measurement of heart rate variability (HRV) is a non-invasive method to evaluate the autonomic activity and gain insights into cardiovascular health and potentially, frailty. A few small studies have explored the relationship between HRV and frailty, with promising but conflicting results.
View Article and Find Full Text PDFBackground: Metabolic acidosis caused by acidogenic diets increases muscle catabolism. High acidogenic diets can increase muscle loss in older adults; however, their association with functional outcomes remains unclear.
Objectives: To investigate whether high acidogenic diets increase the incidence of disability.
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