12,365 results match your criteria Skeletal System - Adult

Maternal exercise during pregnancy modulates mitochondrial function and redox status in a sex-dependent way in adult offspring's skeletal muscle.

J Dev Orig Health Dis 2021 May 5:1-8. Epub 2021 May 5.

Programa de Pós-Graduação em Ciências Biológicas - Bioquímica, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.

Maternal exercise has shown beneficial effects on mother and child. Literature confirm progeny's cognition improvement, and upregulation in neurotrophins, antioxidant network, and DNA repair system. Considering that there is a lack of information demonstrating the impact of maternal exercise on offspring's skeletal muscle, we aimed to investigate the mitochondrial and redox effects elicited by maternal swimming. Read More

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Assessment of an AI Aid in Detection of Adult Appendicular Skeletal Fractures by Emergency Physicians and Radiologists: A Multicenter Cross-sectional Diagnostic Study.

Radiology 2021 May 4:203886. Epub 2021 May 4.

From the Department of Radiology, Hôpital Fondation A. de Rothschild, 25 rue Manin, 75019 Paris, France (L.D.); Faculty of Medicine, Université de Paris, Paris, France (L.D., A. Feydy); Gleamer, Paris, France (A.D., C.A., N.C., Z.Z., N.N., E.L., A.P., N.E.R.); Department of Biostatistics, CHU Rouen, Rouen, France (A.G.); Department of Radiology, Hôpital Hôtel-Dieu, Assistance Publique-Hôpitaux de Paris, Paris, France (J.L.); Department of Radiology, Hôpital Ambroise-Paré, Assistance Publique-Hôpitaux de Paris, Boulogne-Billancourt, France (A. Felter); Department of Radiology, Hôpital Raymond-Poincaré, Assistance Publique-Hôpitaux de Paris, Garches, France (A. Felter); and Department of Radiology B, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Paris, France (L.L., N.E.R., A. Feydy).

Background The interpretation of radiographs suffers from an ever-increasing workload in emergency and radiology departments, while missed fractures represent up to 80% of diagnostic errors in the emergency department. Purpose To assess the performance of an artificial intelligence (AI) system designed to aid radiologists and emergency physicians in the detection and localization of appendicular skeletal fractures. Materials and Methods The AI system was previously trained on 60 170 radiographs obtained in patients with trauma. Read More

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Clitoromegaly, Vulvovaginal Hemangioma Mimicking Pelvic Organ Prolapse, and Heavy Menstrual Bleeding: Gynecologic Manifestations of Klippel-Trénaunay Syndrome.

Medicina (Kaunas) 2021 Apr 9;57(4). Epub 2021 Apr 9.

Department of Obstetrics and Gynecology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.

Klippel-Trénaunay Syndrome (KTS) is a genetic vascular malformation involving the capillary, lymphatic, and venous channels. Prenatal sonographic diagnosis of KTS with an enlarged fetal limb is well-known; however, postnatal gynecologic manifestations are rarely reported. KTS can cause clitoromegaly, vulvovaginal hemangioma, and heavy menstrual bleeding. Read More

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Near Infrared Spectroscopy for Muscle Specific Analysis of Intensity and Fatigue during Cross-Country Skiing Competition-A Case Report.

Sensors (Basel) 2021 Apr 4;21(7). Epub 2021 Apr 4.

Department for Elite Sport, Swiss Federal Institute of Sport, 2532 Magglingen, Switzerland.

The aims of the study were to assess the robustness and non-reactiveness of wearable near-infrared spectroscopy (NIRS) technology to monitor exercise intensity during a real race scenario, and to compare oxygenation between muscle groups important for cross-country skiing (XCS). In a single-case study, one former elite XCS (age: 39 years, peak oxygen uptake: 65.6 mL/kg/min) was equipped with four NIRS devices, a high-precision global navigation satellite system (GNSS), and a heart rate (HR) monitor during the Vasaloppet long-distance XCS race. Read More

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[Algorithm for treatment of patients with class II malocclusion rejecting orthognathic surgery].

Stomatologiia (Mosk) 2021 ;100(2):64-72

Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia.

The of this study is to develop algorithms for the treatment of patients with class II malocclusion and incisor protrusion using the combination of bracket system, functional fixed telescopic appliance (FFTA) and skeletal anchorage, which allows to achieve effective dentoalveolar compensation of skeletal forms of class II malocclusion.

Materials And Methods: Orthodontic treatment of 60 patients with class II malocclusion at the age of 18 to 44 years, using the bracket system, FFTA and orthodontic miniscrews was performed. In order to assess the results of treatment, cone-beam computed tomography were obtained at the beginning and at the end of treatment. Read More

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Bone Geometry Is Altered by Follistatin-Induced Muscle Growth in Young Adult Male Mice.

JBMR Plus 2021 Apr 3;5(4):e10477. Epub 2021 Mar 3.

Centre for Muscle Research, Department of Anatomy and Physiology, School of Biomedical Sciences University of Melbourne Melbourne 3010 Australia.

The development of the musculoskeletal system and its maintenance depends on the reciprocal relationship between muscle and bone. The size of skeletal muscles and the forces generated during muscle contraction are potent sources of mechanical stress on the developing skeleton, and they shape bone structure during growth. This is particularly evident in hypermuscular global myostatin (Mstn)- mice, where larger muscles during development increase bone mass and alter bone shape. Read More

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Screening for Vitamin D Deficiency in Adults: US Preventive Services Task Force Recommendation Statement.

JAMA 2021 04;325(14):1436-1442

Tufts University School of Medicine, Boston, Massachusetts.

Importance: Vitamin D is a fat-soluble vitamin that performs an important role in calcium homeostasis and bone metabolism and also affects many other cellular regulatory functions outside the skeletal system. Vitamin D requirements may vary by individual; thus, no one serum vitamin D level cutpoint defines deficiency, and no consensus exists regarding the precise serum levels of vitamin D that represent optimal health or sufficiency.

Objective: To update its 2014 recommendation, the US Preventive Services Task Force (USPSTF) commissioned a systematic review on screening for vitamin D deficiency, including the benefits and harms of screening and early treatment. Read More

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Secondary denervation is a chronic pathophysiologic sequela of volumetric muscle loss.

J Appl Physiol (1985) 2021 May 8;130(5):1614-1625. Epub 2021 Apr 8.

School of Kinesiology, University of Minnesota, Minneapolis, Minnesota.

Volumetric muscle loss (VML) is the traumatic loss of muscle tissue that results in long-term functional impairments. Despite the loss of myofibers, there remains an unexplained significant decline in muscle function. VML injury likely extends beyond the defect area, causing negative secondary outcomes to the neuromuscular system, including the neuromuscular junctions (NMJs), yet the extent to which VML induces denervation is unclear. Read More

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Marinacci anastomosis (reverse Martin-Gruber anastomosis): A case report.

Medicine (Baltimore) 2021 Apr;100(13):e25073

Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital.

Rationale: The incidence of Martin-Gruber anastomosis ranges from 5% to 34%, which is characterized by crossing over from the median to the ulnar nerve and innervating the first dorsal interosseous, thenar or hypothenar muscles. However, the reverse Martin-Gruber anastomosis, or Marinacci anastomosis, is far less discussed and appears in recent literature.

Patient Concerns: A 56-year-old man presented to the clinic of a university hospital because of left neck soreness with numbness radiating to the left lateral shoulder. Read More

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New risk factors of postoperative complications in elective gastrointestinal surgery of elderly patients: a prospective cohort study.

BMC Surg 2021 Mar 30;21(1):173. Epub 2021 Mar 30.

Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi, Tokyo, 193-0998, Japan.

Background: Gastrointestinal surgery in elderly individuals presents unexpected postoperative complications. However, predicting postoperative complications in elderly patients undergoing gastrointestinal surgeries is challenging because of the lack of a reliable preoperative evaluation system. We aimed to prospectively evaluate three new preoperative assessment methods to predict the postoperative complications in elderly patients undergoing elective gastrointestinal surgery. Read More

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Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients.

J Vis Exp 2021 03 11(169). Epub 2021 Mar 11.

Department of Rehabilitation Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University; Department of Rehabilitation Medicine, Guangzhou Medical University; Rehabilitation Medicine Lab, Guangzhou Medical University;

Eighteen stroke patients were recruited for this study involving the evaluation of cognition and walking ability and multitask gait analysis. Multitask gait analysis consisted of a single walking task (Task 0), a simple motor dual-task (water-holding, Task 1), and a complex motor dual-task (crossing obstacles, Task 2). The task of crossing obstacles was considered to be equivalent to the combination of a simple walking task and a complex motor task as it involved more nervous system, skeletal movement, and cognitive resources. Read More

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Naked mole-rat skeletal muscle mitochondria exhibit minimal functional plasticity in acute or chronic hypoxia.

Comp Biochem Physiol B Biochem Mol Biol 2021 Mar 20;255:110596. Epub 2021 Mar 20.

Department of Biology, University of Ottawa, Ottawa, ON, Canada; University of Ottawa Brain and Mind Research Institute, Ottawa, ON, Canada. Electronic address:

Oxidative phosphorylation is compromised in hypoxia, but many organisms live and exercise in low oxygen environments. Hypoxia-driven adaptations at the mitochondrial level are common and may enhance energetic efficiency or minimize deleterious reactive oxygen species (ROS) generation. Mitochondria from various hypoxia-tolerant animals exhibit robust functional changes following in vivo hypoxia and we hypothesized that similar plasticity would occur in naked mole-rat skeletal muscle. Read More

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RGMa can induce skeletal muscle cell hyperplasia via association with neogenin signalling pathway.

In Vitro Cell Dev Biol Anim 2021 Mar 21. Epub 2021 Mar 21.

Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Av Antonio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais, 31.270-901, Brazil.

Although originally discovered inducing important biological functions in the nervous system, repulsive guidance molecule a (RGMa) has now been identified as a player in many other processes and diseases, including in myogenesis. RGMa is known to be expressed in skeletal muscle cells, from somites to the adult. Functional in vitro studies have revealed that RGMa overexpression could promote skeletal muscle cell hypertrophy and hyperplasia, as higher efficiency in cell fusion was observed. Read More

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Calf circumference: cutoff values from the NHANES 1999-2006.

Am J Clin Nutr 2021 Mar 19. Epub 2021 Mar 19.

Pennington Biomedical Research Center, LSU System, Baton Rouge, LA, USA.

Background: Calf circumference (CC) is used in geriatric studies as a simple and practical skeletal muscle (SM) marker for diagnosing low SM and sarcopenia. Currently applied CC cutoff points were developed in samples including older participants; values representative of the full adult lifespan are lacking.

Objectives: We aimed to develop CC cutoff points and to identify relevant confounding factors from the large and diverse NHANES 1999-2006 population sample. Read More

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Multiple neurological manifestations in a patient with systemic lupus erythematosus and anti-NXP2-positive myositis: A case report.

Medicine (Baltimore) 2021 Mar;100(10):e25063

Department of Neurology, The General Hospital of Western Theater Command, Jinniu District, Chengdu, Sichuan Province, People's Republic of China.

Rationale: Systemic lupus erythematosus (SLE) is a complex autoimmune inflammatory disease that frequently affects various organs. Neuropsychiatric manifestations in SLE patients, known as neuropsychiatric SLE, are clinically common. However, the principal manifestation of cranial neuropathy in patients with SLE and comorbidities is relatively rare. Read More

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Utility of bedside leucocyte esterase testing to rule out septic arthritis.

Emerg Med J 2021 Mar 10. Epub 2021 Mar 10.

Department of Trauma and Orthopaedics, North Bristol NHS Trust, Westbury on Trym, Bristol, UK.

Introduction: Suspected septic arthritis is a common presentation to EDs. The underlying diagnosis is often non-infective pathology. Differentiating between aetiologies is difficult. Read More

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A 58-Year-Old Man with a Painful Gluteal Mass as the First Presentation of Metastatic Adenocarcinoma of the Lung.

Am J Case Rep 2021 Mar 5;22:e928122. Epub 2021 Mar 5.

Department of Medicine, BronxCare Health Center, Affiliated with Icahn School of Medicine at Mount Sinai, Bronx, NY, USA.

BACKGROUND Lung cancer is the second most common cancer, with the highest mortality rate. It frequently metastasizes to the nervous system, bone, adrenal gland, and liver. Rarely, it metastasizes to soft tissues, including cutaneous, subcutaneous, and skeletal muscles, with an overall prevalence rate of 2. Read More

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Treatment of unexplained coma and hypokinetic-rigid syndrome in a patient with COVID-19.

BMJ Case Rep 2021 Mar 2;14(3). Epub 2021 Mar 2.

Department of Medicine, Montefiore Nyack Hospital, Nyack, NY, USA.

The COVID-19 pandemic has dealt a devastating blow to healthcare systems globally. Approximately 3.2% of patients infected with COVID-19 require invasive ventilation during the course of the illness. Read More

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Protein Source and Muscle Health in Older Adults: A Literature Review.

Nutrients 2021 Feb 26;13(3). Epub 2021 Feb 26.

Center for Population Health, Department of Biomedical and Nutritional Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA.

Research shows that higher dietary protein of up to 1.2 g/kg/day may help prevent sarcopenia and maintain musculoskeletal health in older individuals. Achieving higher daily dietary protein levels is challenging, particularly for older adults with declining appetites and underlying health conditions. Read More

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February 2021

Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition).

Autophagy 2021 Jan 8;17(1):1-382. Epub 2021 Feb 8.

University of Crete, School of Medicine, Laboratory of Clinical Microbiology and Microbial Pathogenesis, Voutes, Heraklion, Crete, Greece; Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology (IMBB), Heraklion, Crete, Greece.

In 2008, we published the first set of guidelines for standardizing research in autophagy. Since then, this topic has received increasing attention, and many scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Read More

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January 2021

Clinicopathologic characteristics, metastasis-free survival, and skeletal-related events in 628 patients with skeletal metastases in a tertiary orthopedic and trauma center.

World J Surg Oncol 2021 Feb 25;19(1):62. Epub 2021 Feb 25.

Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Hugstetterstrasse 55, 79106, Freiburg, Germany.

Background: Skeletal-related events (SREs) due to bone metastases (BM) significantly impact the morbidity and mortality of cancer patients. The present study sought to investigate clinicopathological characteristics, metastasis-free survival (MFS), and SREs in patients referred to a tertiary orthopedic and trauma center.

Methods: Data were retrieved from electronic health records (n=628). Read More

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February 2021

Trunk control during repetitive sagittal movements following a real-time tracking task in people with chronic low back pain.

J Electromyogr Kinesiol 2021 Apr 16;57:102533. Epub 2021 Feb 16.

Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, UK. Electronic address:

Precision of trunk movement has commonly been examined by testing relocation accuracy rather than evaluating accuracy of tracking dynamic movement. In this study we used a 3-D motion capture system to provide a novel real-time tracking task to assess trunk motor control at varying movement speeds between people with and without chronic non-specific low back pain (LBP). Eleven asymptomatic volunteers and 15 participants with chronic non-specific LBP performed 12 continuous cycles of trunk flexion-extension following real time visual feedback, during which, trunk motion was measured using eight optoelectronic infrared cameras. Read More

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Biplanar Videoradiography to Study the Wrist and Distal Radioulnar Joints.

J Vis Exp 2021 02 4(168). Epub 2021 Feb 4.

Center for Biomedical Engineering, Brown University; Department of Orthopedics, The Warren Alpert Medical School of Brown University and Rhode Island Hospital.

Accurate measurement of skeletal kinematics in vivo is essential for understanding normal joint function, the influence of pathology, disease progression, and the effects of treatments. Measurement systems that use skin surface markers to infer skeletal motion have provided important insight into normal and pathological kinematics, however, accurate arthrokinematics cannot be attained using these systems, especially during dynamic activities. In the past two decades, biplanar videoradiography (BVR) systems have enabled many researchers to directly study the skeletal kinematics of the joints during activities of daily living. Read More

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February 2021

Systemic autoinflammatory disease in adults.

Autoimmun Rev 2021 Apr 17;20(4):102774. Epub 2021 Feb 17.

Department of General Internal Medicine, University Hospitals Leuven, Leuven, Belgium; KU Leuven, Department of Microbiology, Immunology, and Transplantation, Laboratory of Clinical Infectious and Inflammatory Disorders, Leuven, Belgium.

Systemic autoinflammatory disorders comprise an expanding group of rare conditions. They are mediated by dysfunction of the innate immune system and share a core of phenotypic manifestations including recurrent attacks of fever, cutaneous signs, chest or abdominal pain, lymphadenopathy, vasculopathy, and musculoskeletal symptoms. Diagnosis is often established in childhood, but a growing number of adult patients are being recognized with systemic autoinflammatory disorders, including adult-onset disease. Read More

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The association of objectively measured physical activity and sedentary behavior with skeletal muscle strength and muscle power in older adults: A systematic review and meta-analysis.

Ageing Res Rev 2021 05 16;67:101266. Epub 2021 Feb 16.

Department of Human Movement Sciences, @AgeAmsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands; Department of Medicine and Aged Care, @AgeMelbourne, The Royal Melbourne Hospital, The University of Melbourne, Victoria, Australia; Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Centre for Healthy Longevity, National University Health System, Singapore. Electronic address:

Background: Engaging in physical activity (PA) and avoiding sedentary behavior (SB) are important for healthy ageing with benefits including the mitigation of disability and mortality. Whether benefits extend to key determinants of disability and mortality, namely muscle strength and muscle power, is unclear.

Aims: This systematic review aimed to describe the association of objective measures of PA and SB with measures of skeletal muscle strength and muscle power in community-dwelling older adults. Read More

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Exercise rescues mitochondrial coupling in aged skeletal muscle: a comparison of different modalities in preventing sarcopenia.

J Transl Med 2021 02 16;19(1):71. Epub 2021 Feb 16.

Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore.

Skeletal muscle aging is associated with a decline in motor function and loss of muscle mass- a condition known as sarcopenia. The underlying mechanisms that drive this pathology are associated with a failure in energy generation in skeletal muscle, either from age-related decline in mitochondrial function, or from disuse. To an extent, lifelong exercise is efficacious in preserving the energetic properties of skeletal muscle and thus may delay the onset of sarcopenia. Read More

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February 2021

Single-cell transcriptomic analysis of the adult mouse spinal cord reveals molecular diversity of autonomic and skeletal motor neurons.

Nat Neurosci 2021 04 15;24(4):572-583. Epub 2021 Feb 15.

Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.

The spinal cord is a fascinating structure that is responsible for coordinating movement in vertebrates. Spinal motor neurons control muscle activity by transmitting signals from the spinal cord to diverse peripheral targets. In this study, we profiled 43,890 single-nucleus transcriptomes from the adult mouse spinal cord using fluorescence-activated nuclei sorting to enrich for motor neuron nuclei. Read More

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Relevance of Notch Signaling for Bone Metabolism and Regeneration.

Int J Mol Sci 2021 Jan 29;22(3). Epub 2021 Jan 29.

Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany.

Notch1-4 receptors and their signaling pathways are expressed in almost all organ systems and play a pivotal role in cell fate decision by coordinating cell proliferation, differentiation and apoptosis. Differential expression and activation of Notch signaling pathways has been observed in a variety of organs and tissues under physiological and pathological conditions. Bone tissue represents a dynamic system, which is constantly remodeled throughout life. Read More

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January 2021