Because of the coexpression of contractile proteins
(smooth muscle actin and desmin) and melanocytic markers (HMB-45, and Melan-A or MART-1), LAM cells are suggested to be of perivascular epithelioid cell origin.
We would like to understand the factors regulating contractile protein
, MHC, and skeletal muscle adaptations in response to altered use, loading states, and neural activation patterns after stroke.
Influence of isoproterenol on contractile protein
function, excitation-contraction coupling, and energy turnover of isolated nonfailing human myocardium.
Recent data show that most of the early strength loss results from a failure of excitation-contraction coupling processes and that a slow loss of contractile proteins
in the days following injury prolongs the time of recovery (Warren et al.
Calcium entering the myocyte's inner fluid or cytosol binds with other contractile proteins
to bring about contraction.
Currently, the mechanism of action of eugenol in smooth muscle remains undefined, but evidence in vascular tissue has suggested that modulation of the calcium sensitivity of the contractile proteins
may be involved (Nishijima et al.
Their structural role includes both the contractile proteins
of the muscles and the fibrous proteins in connective tissue, skin, nails, and hair.
The copresence of animal protein from meat, fish or poultry (the 'MFP' factor) enhances absorption due to the presence of peptides that arise from digestion of the contractile proteins
, actin and myosin.
2-4] With their interconnected endoplasmic reticular structure and the presence of numerous contractile proteins
This sudde n increase in calcium levels allows the contractile proteins
to perform their function, leading to muscle contraction.
It is this messenger signal which tells the contractile proteins
inside the smooth muscle cells to stop contracting and to relax.
Laboratory measurement of cardiac regulatory and contractile proteins
has considerably improved the diagnosis of myocardial damage caused by several diseases, such as acute and perioperative myocardial infarction, myocarditis, or heart contusion (1, 2).
Because many muscle fibers are not used, muscles lose contractile proteins
and shrink -- by 40 percent in the case of the rats flown for 12-1/2 days in the Cosmos.