The absence of dystrophin protein in the muscles of DMD patients sensitizes myofibres to contractile damage, leading to inflammation, necrosis, chronic cycles of degeneration and regeneration and ultimately to depletion of the muscle stem cell pool [ 25].
Loss of dystrophin sensitises muscle fibres to contractile damage (5), leading to chronic cycles of myofibre degeneration and regeneration.
It reflected that heart damage status had been partly reversed and was consistent with the results of contractile force and coronary flow rate recovery.
We therefore describe a pathway involving the actin-severing proteins ADF and CFL1 in regulating the dynamic turnover of contractile actin stress fibers, and this is vital to prevent the nucleus from being damaged by actin contractility, in turn preserving cell survival and tissue homeostasis.
Moreover, because the binding of AGEs to RAGE results in depletion of cellular antioxidant defense mechanisms and the generation of oxygen-free radicals (Schmidt et al. 1994), oxidant damage to myofibrillar proteins may play a role in the age-related reduction of contractile capacity (Thompson 2009).
These differences in expression of contractile elements and induction of antioxidative mediators seem to be the major factors responsible for the irreversible damage of the cardiomyocytes in remote perfusion areas, which histologically presented as small, nontransmural infarcted areas.
The recovery of contractile muscle action after tibial fractures is problematic especially for sportsmen [18].
S′/peak systolic LV wall thickening velocity/ultrasonography (miniaturized transducer)/a marker of contractile function.
To address the effect of the changes in contractile protein expressions on the structural integrity of contractile filaments, we performed the TEM analysis of organ-cultured arterial smooth muscle cells (Figure?5).
In vascular diseases, the phenotype of smooth muscle cells is easily changed from contractile to synthetic/proliferative with the loss of contractile filaments in response to various stimuli including growth factors.
