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Transcriptomic Profiling Reveals 17β-Estradiol Treatment Represses Ubiquitin-Proteasomal Mediators in Skeletal Muscle of Ovariectomized Mice.
J Cachexia Sarcopenia Muscle
February 2025
Division of Physical Therapy and Rehabilitation Science, Department of Family Medicine and Community Health, University of Minnesota, Minneapolis, Minnesota, USA.
Background: With a decline of 17β-estradiol (E2) at menopause, E2 has been implicated in the accompanied loss of skeletal muscle mass and strength. We aimed at characterizing transcriptomic responses of skeletal muscle to E2 in female mice, testing the hypothesis that genes and pathways related to contraction and maintenance of mass are differentially expressed in ovariectomized mice with and without E2 treatment.
Methods: Soleus and tibialis anterior (TA) muscles from C57BL/6 ovariectomized mice treated with placebo (OVX) or E2 (OVX + E2) for 60 days, or from skeletal muscle-specific ERα knockout (skmERαKO) mice and wild-type littermates (skmERαWT), were used for genome-wide expression profiling, quantitative real-time PCR and immunoblotting.
Dentoalveolar and Skeletal Effects of an Anterior Open Bite Treatment Protocol Using Zygomatic Anchorage.
Orthod Craniofac Res
January 2025
Department of Orthodontics, Dental School, Okan University, Istanbul, Turkey.
Objective: Primary aim was to analyse dentoalveolar and skeletal effects induced by an anterior open bite (AOB) treatment protocol for intrusion of maxillary buccal segment. Secondary aim was to investigate whether a subsequent change occurred in hyoid position.
Materials And Methods: Study group included 28 non-growing subjects treated in academic setting for correction of AOB.
Photobiomodulation and aquatic training reduce TNF-α expression and enhance muscle fiber area in Wistar rats with compensatory hypertrophy.
Lasers Med Sci
January 2025
Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), 235/249 Vergueiro Street, Sao Paulo, SP, 01525000, Brazil.
This study aims to assess the effects of aquatic training (AT) and its combination with photobiomodulation (PBM) on cytokine synthesis and plantar muscle morphology during compensatory hypertrophy (H) in Wistar rats. H was induced by bilateral ablation of synergistic muscles, and PBM using a laser (780 nm). AT involved 60 min sessions, 5 times/week, for 7 and 14 days.
View Article and Find Full Text PDFTroponins and Skeletal Muscle Pathologies.
Biochemistry (Mosc)
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Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia.
Skeletal muscles account for ~30-40% of the total weight of human body and are responsible for its most important functions, including movement, respiration, thermogenesis, and glucose and protein metabolism. Skeletal muscle damage negatively impacts the whole-body functioning, leading to deterioration of the quality of life and, in severe cases, death. Therefore, timely diagnosis and therapy for skeletal muscle dysfunction are important goals of modern medicine.
View Article and Find Full Text PDFThe novel use of the CFTR corrector C17 in muscular dystrophy: Pharmacological profile and in vivo efficacy.
Biochem Pharmacol
January 2025
Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy,. Electronic address:
Sarcoglycanopathies are rare forms of severe muscular dystrophies currently without a therapy. Mutations in sarcoglycan (SG) genes cause the reduction or absence of the SG-complex, a tetramer located in the sarcolemma that plays a protective role during muscle contraction. Missense mutations in SGCA, which cause α-sarcoglycanopathy, otherwise known as LGMD2D/R3, lead to folding defective forms of α-SG that are discarded by the cell quality control.
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