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Thoracolumbar spine muscle size and composition changes in long-duration space missions.
Life Sci Space Res (Amst)
February 2025
Department of Biomedical Engineering, Center for Injury Biomechanics, Wake Forest University School of Medicine. 575 N. Patterson Avenue, Suite 530. Winston-Salem, NC 27101, USA. Electronic address:
Muscle atrophy occurs with extended exposure to microgravity. This study quantified the overall muscle size, lean muscle area and fat infiltration changes pre- to post-flight that occur in the thoracic and lumbar spine with long-duration spaceflight. Pre- and post-flight magnetic resonance imaging (MRI) scans were obtained from 9 crewmembers on long-duration (≥6 months) International Space Station (ISS) missions.
View Article and Find Full Text PDFComparative magnetic resonance imaging-based study of pelvic floor morphology and function before pregnancy and after primigravida vaginal delivery.
BMC Pregnancy Childbirth
January 2025
Department of Radiology, The Affiliated People's Hospital of Fujian University of Traditional Chinese Medicine, 602 Ba Yi Qi Zhong Road, Fuzhou, China.
Background: Vaginal childbirth is one of the main risk factors for pelvic floor dysfunction. Magnetic resonance imaging (MRI) can facilitate quantitative evaluation of the morphology and function of the pelvic floor in static and dynamic environments. The objective of this study was to investigate the changes in pelvic floor morphology and function in primigravida women before pregnancy (BP) and after vaginal delivery.
View Article and Find Full Text PDFReduced white matter integrity and disrupted brain network in children with type 2 and 3 spinal muscular atrophy.
J Neurodev Disord
January 2025
Department of Radiology, The First Affiliated Hospital of Sun Yat-sen University, No 58 Zhongshan 2nd Road, Guangzhou, 510080, China.
Background: Spinal muscular atrophy (SMA) is caused by reduced expression of survival motor neuron (SMN) protein. Previous studies indicated SMA causes not only lower motor neuron degeneration but also extensive brain involvement. This study aimed to investigate the changes of brain white matter and structural network using diffusion tensor imaging (DTI) in children with type 2 and 3 SMA.
View Article and Find Full Text PDFCongenital Titinopathy: Comprehensive Characterization of the Most Severe End of the Disease Spectrum.
Ann Neurol
January 2025
School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia.
Unlabelled: Congenital titinopathy has recently emerged as one of the most common congenital muscle disorders.
Objective: To better understand the presentation and clinical needs of the under-characterized extreme end of the congenital titinopathy severity spectrum.
Methods: We comprehensively analyzed the clinical, imaging, pathology, autopsy, and genetic findings in 15 severely affected individuals from 11 families.
Targeting EP2 Receptor Improves Muscle and Bone Health in Dystrophin/Utrophin Double-Knockout Mice.
Cells
January 2025
Linda and Mitch Hart Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO 81657, USA.
Duchenne muscular dystrophy (DMD) is a severe genetic muscle disease occurring due to mutations of the dystrophin gene. There is no cure for DMD. Using a dystrophinutrophin (DKO-Hom) mouse model, we investigated the PGE2/EP2 pathway in the pathogenesis of dystrophic muscle and its potential as a therapeutic target.
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