In our experiments, the phase component of the contraction of muscle preparations of TiO2-burdened rats, activated with acetylcholine, increased, which may be caused by the modulating impact of this nanosize material on the abovementioned regulatory mechanisms of cholinergic excitation.
The impact of titanium dioxide in the group of rats, burdened with this nanosize material, was accompanied with considerable impairment of the kinetics of forming the tonic component of the contraction of smooth muscles of myometrium, caused by oxytocin, the uterotonic peptide hormone.
In the geometry of this experiment, the scattering vector for the (–111) reflection is mostly parallel to the horizontal edges of the sSOI square as shown in Figure 2b, so is less sensitive to the vertical component of the contraction.
The effects of testosterone on cardiac contractile function may arise through effects on components of the excitation-contraction coupling pathway at the level of the myocyte.
They are localized to the T-tubule system and intercalated discs in the vicinity of components of the excitation-contraction machinery [ 107– 107].
The decrease in SR Ca2+ release arises as a consequence of changes in several components of the excitation-contraction coupling pathway.
3a It is the solvent cavity which undergoes greater contraction than the other components of the structure, contracting to 12.4 % of the structure at 100 K (see the Supporting Information).
Directed cell migration requires the coordinated activation of several processes: cell polarisation and elongation, formation of cell protrusions and attachment to components of the ECM, and contraction of the cell body to generate a force for the movement of the cell body in the direction of the leading edge (Friedl and Wolf, 2003).
Participants performed five strength exercises that emphasized the eccentric component of the muscle contraction in order to induce DOMS.
At the same time, these experiments demonstrated the approximation of the tonic component of the acetylcholine contraction to the value of its phase component.
