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FK506 Enhancement of Neuromuscular Junction Recovery After Nerve Injury Is Macrophage-Dependent.
Muscle Nerve
January 2025
Division of Plastic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA.
Introduction: Motor recovery following nerve injury is dependent on time required for muscle reinnervation. This process is imperfect, however, and recovery is often incomplete. At the neuromuscular junction (NMJ), macrophage signaling aids muscle reinnervation.
View Article and Find Full Text PDFThe first and second phases of the muscle compound action potential in the thumb are differently affected by electrical stimulation trains.
J Appl Physiol (1985)
May 2024
Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland.
Sarcolemmal membrane excitability is often evaluated by considering the peak-to-peak amplitude of the compound muscle action potential (M wave). However, the first and second M-wave phases represent distinct properties of the muscle action potential, which are differentially affected by sarcolemma properties and other factors such as muscle architecture. Contrasting with previous studies in which voluntary contractions have been used to induce muscle fatigue, we used repeated electrically induced tetanic contractions of the adductor pollicis muscle and assessed the kinetics of M-wave properties during the course of the contractions.
View Article and Find Full Text PDFEffect of Calcitriol and Vitamin D Receptor Modulator 2 on Recovery of Injured Skeletal Muscle in Wistar Rats.
Biomedicines
September 2023
Department of Trauma, Hand and Reconstructive Surgery, University of Rostock, 18057 Rostock, Germany.
Muscle injuries often result in functional limitations due to insufficient healing. This study assessed the influence of calcitriol and vitamin D Receptor Modulator 2 (VDRM2) on muscle regeneration in male Wistar rats following open blunt muscle injury. The injured left soleus muscle of the rats was treated for the first four days after trauma with local injections of either calcitriol, VDRM2, or a 10% ethanol solution (control).
View Article and Find Full Text PDFAcellular collagen-glycosaminoglycan matrix promotes functional recovery in a rat model of volumetric muscle loss.
Regen Med
August 2023
Division of Plastic Surgery, Brigham & Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
Volumetric muscle loss (VML) is a composite loss of skeletal muscle, which heals with fibrosis, minimal muscle regeneration, and incomplete functional recovery. This study investigated whether collagen-glycosaminoglycan scaffolds (CGS) improve functional recovery following VML. 15 Sprague-Dawley rats underwent either sham injury or bilateral tibialis anterior (TA) VML injury, with or without CGS implantation.
View Article and Find Full Text PDFALM Therapy Promotes Functional and Histologic Regeneration of Traumatized Peripheral Skeletal Muscle.
Biology (Basel)
June 2023
Department of Trauma and Reconstructive Surgery, University of Rostock, 18057 Rostock, Germany.
Skeletal muscle trauma is a common injury with a range of severity. Adenosine, lidocaine and Mg (ALM) is a protective solution and improves tissue perfusion and coagulopathy. Male Wistar rats were anesthetized and subjected to standardized skeletal muscle trauma of the left soleus muscle with the protection of the neurovascular structures.
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