Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
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Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
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Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
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Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
Unit of Cardiology, Karolinska University Hospital, Stockholm, Sweden
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Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
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Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
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Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
Unit of Cardiology, Karolinska University Hospital, Stockholm, Sweden
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Unit of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
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satellite cell (SC) niche, i.e. myoblast stem cells ( 22 ). Adult skeletal muscle is terminally differentiated and in response to injury, a local pool of SCs situated beneath the basal lamina surrounding each myofibre proliferate ( 23 ). Their progeny
Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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-exposure to lactone- and acid-form simvastatin were measured by detecting extracellular acidification rate (ECAR) in primary human myoblasts with Seahorse analyzer. Data (in mpH/min/20,000 cells) are expressed as mean ± s.e.m. from six men. *** P < 0.001 vs
Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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Department of Medicine, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
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trypsinisation and maintained in high-glucose (3150 mg/L, 17.5 mmol/L) DMEM/F12 supplemented with 20% (v/v) FBS, 1% (v/v) penicillin–streptomycin and 1% (v/v) amphotericin B, as described ( 23 ). Primary myoblasts were purified from non-myogenic cells with CD56
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Department of Health & Life Sciences, Charles R. Drew University of Medicine and Science, Los Angeles, California, USA
Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
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Department of Health & Life Sciences, Charles R. Drew University of Medicine and Science, Los Angeles, California, USA
Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
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C12 cells ( 11 , 12 , 13 , 14 ). Mouse C2C12 skeletal muscle myoblast cells are an ‘ in vitro ’ cell line, which is widely used to study genes that regulate muscle growth and differentiation ( 15 , 16 ). Satellite cells, also known as ‘skeletal
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myoblast cell line was obtained from BCRJ (Banco de Células do Rio de Janeiro) and certified to be free from mycoplasma contamination. The cells were grown in DMEM supplemented with 10% heat-inactivated fetal bovine serum (FBS), 100 nmol/L sodium selenite
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, differentiation, and connection of myoblasts, making the regeneration of skeletal muscle possible ( 14 , 17 ). As a result of the COL4A1 gene mutation, the secretion of the COL4A1, A2, and A3 trimers may be disturbed, which leads to abnormalities, such as
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myoblast proliferation and muscle repair. During skeletal muscle injury, IGF1 Ea is responsible for satellite cell differentiation, whereas IGF1 Ec is responsible for satellite cell activation and proliferation ( 16 , 17 ). Different splicing patterns of
University of Helsinki, Department of Medicine, and Abdominal Center, Endocrinology, Helsinki University Central Hospital, Helsinki, Finland
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University of Helsinki, Department of Medicine, and Abdominal Center, Endocrinology, Helsinki University Central Hospital, Helsinki, Finland
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University of Helsinki, Department of Medicine, and Abdominal Center, Endocrinology, Helsinki University Central Hospital, Helsinki, Finland
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University of Helsinki, Department of Medicine, and Abdominal Center, Endocrinology, Helsinki University Central Hospital, Helsinki, Finland
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bovine serum (FBS), 1% penicillin, 1% streptomycin and 1% fungizone. Primary myoblasts were separated from non-myogenic cells with CD56-coupled magnetic beads (Miltenyi Biotec, Gologne, Germany). To obtain myotubes, myoblasts at 80% confluence were
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of FGFR1 mutants was assessed using L6 myoblast cells as described previously (15) . In brief, cells were transiently transfected with WT or altered FGFR1c expression vector in combination with the osteocalcin FGF response element luciferase reporter
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effect on myoblast proliferation and myoblast differentiation, and testosterone increases the number of satellite cells, which promotes protein synthesis of muscle mass ( 16 ). Thus, testosterone plays an important role in muscle mass and muscle strength