Aging, obesity, and insulin resistance are known to cause the impairment of bone regulation, resulting in an imbalance in bone homeostasis and pathological bone. The natural deterioration associated with the aging process, including increased adipogenicity, menopause, andropause and alteration of mesenchymal stem cell fate have been shown to be potential causes of decreased bone density, resulting in osteoporosis, in which is a major risk factor of bone fracture in elderly people. Furthermore, functional limitations of the aging musculoskeletal system cause physical inactivity and increased adipogenicity. Therefore obesity in aged population has been dramatically observed. Several evidence demonstrated that obesity in aged individual leads to the acceleration and aggravation of unfavorable effects to general health, particularly the deterioration of bone health, including reduction in bone formation, increased bone resorption, greater adipose tissue accumulation, impaired bone architecture, and bone fragility. Therefore, the present review aimed to summarize and discuss the effects of aging, obesity, and aging with obesity on bone remodeling. The possible mechanistic insights of bone homeostasis and the interventions for the improvement of bone quality in aged and obese individuals have been included and discussed.
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http://dx.doi.org/10.1016/j.mad.2020.111335 | DOI Listing |
ACS Nano
January 2025
Department of Orthopaedics, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China.
Methicillin-resistant (MRSA) causes osteomyelitis (OM), which seriously threatens public health due to its antimicrobial resistance. To increase the sensitivity of antibiotics and eradicate intracellular bacteria, a Zn and vancomycin (Van) codelivered nanotherapeutic (named Man-Zn/Van NPs) was fabricated and characterized via mannose (Man) modification. Man-Zn/Van NPs exhibit significant inhibitory activity against extra- and intracellular MRSA and obviously decrease the minimum inhibitory concentration of Van.
View Article and Find Full Text PDFS Afr J Surg
December 2024
Department of Gastrointestinal Surgery, Central Hospital Affiliated to Shandong First Medical University, China.
Tailgut cyst is an exceedingly rare congenital anomaly originating from embryonic remnants of the tailgut. Owing to its asymptomatic nature in the early stages, it is prone to clinical misdiagnosis. We present a case of a 55-year-old female with initial symptoms manifesting as sacrococcygeal pain.
View Article and Find Full Text PDFInfect Disord Drug Targets
January 2025
HCA Healthcare Las Palmas/Del Sol Internal Medicine Program.
Background: Streptococcal Toxic Shock Syndrome (STSS) is a life-threatening condition caused by bacterial toxins. The STSS triad encompasses high fever, hypotensive shock, and a "sunburn-like" rash with desquamation. STSS, like Toxic Shock Syndrome (TSS), is a rare complication of streptococcal infec-tions caused by Group A Streptococcus (GAS), Streptococcal pyogenes (S.
View Article and Find Full Text PDFCurr Stem Cell Res Ther
January 2025
Department of Immunology, Immunology Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Background: Since there is currently no cure for amyotrophic lateral sclerosis (ALS), it is essential to search for diagnostic biomarkers and novel treatments to reduce the severity of this disease. One of these treatment approaches is stem cell transplantation.
Objective: This study aims to evaluate the safety and efficacy of repeated transplantation of autologous bone marrow-derived mesenchymal stem cells (BM-MSCs) in patients with ALS by analyzing clinical and molecular data.
Comput Methods Biomech Biomed Engin
January 2025
Department of Mathematics, National Institute of Technology Uttarakhand, Srinagar, India.
As humans age, they experience deformity and a decrease in their bone strength, such brittleness in the bones ultimately lead to bone fracture. Magnetic field exposure combined with physical exercise may be useful in mitigating age-related bone loss by improving the canalicular fluid motion within the bone's lacuno-canalicular system (LCS). Nevertheless, an adequate amount of fluid induced shear stress is necessary for the bone mechano-transduction and solute transport in the case of brittle bone diseases.
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