scholarly journals Hindlimb skeletal muscle function in myostatin-deficient mice

2010 ◽  
Vol 43 (1) ◽  
pp. 49-57 ◽  
Author(s):  
Bettina A. Gentry ◽  
J. Andries Ferreira ◽  
Charlotte L. Phillips ◽  
Marybeth Brown
Keyword(s):  
Skeletal Muscle ◽  
Muscle Function ◽  
Skeletal Muscle Function ◽  
Deficient Mice

scholarly journals In vivo characterization of skeletal muscle function in nebulin‐deficient mice

2020 ◽  
Vol 61 (3) ◽  
pp. 416-424
Author(s):  
Charlotte Gineste ◽  
Augustin C. Ogier ◽  
Isabelle Varlet ◽  
Zaynab Hourani ◽  
Monique Bernard ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Function ◽  
Skeletal Muscle Function ◽  
In Vivo Characterization ◽  
Deficient Mice

scholarly journals Rapamycin Reverses Elevated mTORC1 Signaling in Lamin A/C-Deficient Mice, Rescues Cardiac and Skeletal Muscle Function, and Extends Survival

2012 ◽  
Vol 4 (144) ◽  
pp. 144ra103-144ra103 ◽  
Author(s):  
F. J. Ramos ◽  
S. C. Chen ◽  
M. G. Garelick ◽  
D.-F. Dai ◽  
C.-Y. Liao ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Function ◽  
Lamin A ◽  
Skeletal Muscle Function ◽  
Mtorc1 Signaling ◽  
Deficient Mice

scholarly journals Gait disturbances and muscle dysfunction in fibroblast growth factor 2 knockout mice

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
C. Homer-Bouthiette ◽  
L. Xiao ◽  
Marja M. Hurley
Keyword(s):  
Skeletal Muscle ◽  
Growth Factor ◽  
Muscle Strength ◽  
Fibroblast Growth Factor ◽  
Muscle Function ◽  
Fibroblast Growth Factor 2 ◽  
Fibroblast Growth ◽  
Skeletal Muscle Function ◽  
Age Related ◽  
Gait Disturbances

AbstractFibroblast growth factor 2 (FGF2) is important in musculoskeletal homeostasis, therefore the impact of reduction or Fgf2 knockout on skeletal muscle function and phenotype was determined. Gait analysis as well as muscle strength testing in young and old WT and Fgf2KO demonstrated age-related gait disturbances and reduction in muscle strength that were exacerbated in the KO condition. Fgf2 mRNA and protein were significantly decreased in skeletal muscle of old WT compared with young WT. Muscle fiber cross-sectional area was significantly reduced with increased fibrosis and inflammatory infiltrates in old WT and Fgf2KO vs. young WT. Inflammatory cells were further significantly increased in old Fgf2KO compared with old WT. Lipid-related genes and intramuscular fat was increased in old WT and old Fgf2KO with a further increase in fibro-adipocytes in old Fgf2KO compared with old WT. Impaired FGF signaling including Increased β-Klotho, Fgf21 mRNA, FGF21 protein, phosphorylated FGF receptors 1 and 3, was observed in old WT and old Fgf2KO. MAPK/ ERK1/2 was significantly increased in young and old Fgf2KO. We conclude that Fgf2KO, age-related decreased FGF2 in WT mice, and increased FGF21 in the setting of impaired Fgf2 expression likely contribute to impaired skeletal muscle function and sarcopenia in mice.

scholarly journals Fourteen days of smoking cessation improves muscle fatigue resistance and reverses markers of systemic inflammation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohammad Z. Darabseh ◽  
Thomas M. Maden-Wilkinson ◽  
George Welbourne ◽  
Rob C. I. Wüst ◽  
Nessar Ahmed ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Skeletal Muscle ◽  
Smoking Cessation ◽  
Muscle Fatigue ◽  
Fatigue Resistance ◽  
Systemic Inflammation ◽  
Muscle Function ◽  
Low Grade ◽  
Skeletal Muscle Function ◽  
Tnf Α

AbstractCigarette smoking has a negative effect on respiratory and skeletal muscle function and is a risk factor for various chronic diseases. To assess the effects of 14 days of smoking cessation on respiratory and skeletal muscle function, markers of inflammation and oxidative stress in humans. Spirometry, skeletal muscle function, circulating carboxyhaemoglobin levels, advanced glycation end products (AGEs), markers of oxidative stress and serum cytokines were measured in 38 non-smokers, and in 48 cigarette smokers at baseline and after 14 days of smoking cessation. Peak expiratory flow (p = 0.004) and forced expiratory volume in 1 s/forced vital capacity (p = 0.037) were lower in smokers compared to non-smokers but did not change significantly after smoking cessation. Smoking cessation increased skeletal muscle fatigue resistance (p < 0.001). Haemoglobin content, haematocrit, carboxyhaemoglobin, total AGEs, malondialdehyde, TNF-α, IL-2, IL-4, IL-6 and IL-10 (p < 0.05) levels were higher, and total antioxidant status (TAS), IL-12p70 and eosinophil numbers were lower (p < 0.05) in smokers. IL-4, IL-6, IL-10 and IL-12p70 had returned towards levels seen in non-smokers after 14 days smoking cessation (p < 0.05), and IL-2 and TNF-α showed a similar pattern but had not yet fully returned to levels seen in non-smokers. Haemoglobin, haematocrit, eosinophil count, AGEs, MDA and TAS did not significantly change with smoking cessation. Two weeks of smoking cessation was accompanied with an improved muscle fatigue resistance and a reduction in low-grade systemic inflammation in smokers.

Beneficial effects of citrulline malate on skeletal muscle function in endotoxemic rat

2009 ◽  
Vol 602 (1) ◽  
pp. 143-147 ◽  
Author(s):  
Benoît Giannesini ◽  
Marguerite Izquierdo ◽  
Yann Le Fur ◽  
Patrick J. Cozzone ◽  
Marc Verleye ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Function ◽  
Skeletal Muscle Function ◽  
Beneficial Effects ◽  
Citrulline Malate
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