These functional and morphological changes in postsynapses and muscle fibers cause hypotonia in patients with CDG.
Based on the fact that muscle contraction is a dynamic vibrational process of mutual reactions, one can assume that in the conditions of pathological changes in muscle fibers caused by ischemia, there should be optimum stimulation parameter ratio, which can involve the maximum number of sarcomere structures for the optimal muscle contraction.
Afferents were classified as Golgi tendon organs if electrical stimulation of the adjacent extrafusal muscle fibers caused the receptor to increase its discharge frequency.
These muscle fibers are caused by muscle denervation [ 24].
The overload of muscle fibers can cause muscle damage and eventually chronic pain (Visser and van Dieen 2006).
The absence of dystrophin results in a steady degradation of muscle fibers that causes progressive loss of muscle strength and functional abilities[ 2, 3].
In contrast, the longer diffusion distances in muscle fibers can cause substantial gradients, not only in the activation level but also of ATP, ADP, and Pi concentrations, making interpretations at the actomyosin level complex.
Whether nNOS dislocation in large type I fibers is a result of muscle fiber hypertrophy caused by prolonged low force static work leading to functional ischemia and focal death or myofibrillar network changes and loss of sarcolemmal nNOS causing ischemia during low force static work and eventually inducing hypertrophy remains unknown.
Mis-splicing of wupA (TnI) is implicated in muscle fiber degeneration caused by muscle hyper-contraction 21, 22. Interestingly, aret-IR IFMs also display splicing defects in Mhc and up (TnT), which are also implicated in muscle hyper-contraction and as a consequence can lead to muscle fiber loss 23 (Supplementary Fig S6).
In DCM, the heart muscle fibers are damaged, causing the weakness and reduction of thickness of walls of heart chambers.
Congenital myopathies, a heterogeneous group of muscle disorders defined by distinctive morphologic abnormalities in skeletal muscle fibers, are often caused by structural defects in sarcomeric or cytoskeletal proteins [ 11].
