However, it did not increase the reduction of tonic contraction
and phasic amplitude, indicating that isoprenaline and darifenacin have possible synergism via the inhibition effects on different receptors.
These recordings showed series of phasic contractions (claps) separated by prolonged tonic contractions
. Numerous characteristics could be quantified from these recordings including the maximal force, mean force during the first minute, force, frequency and number of claps per series, as well as the force and duration of tonic contractions
In contrast, ACh and 5-HT produced a transient tonic contraction
of DCLM immediately after treatment of agonists, followed by a gradual decline to the resting levels with a slight increase in low frequency contractions (Fig.
Relaxant effects of EOO[G.sub.8], EOO[G.sub.12], eugenol, 1,8 cineole and diltiazem on KCl-induced tonic contraction
The tonic contraction
induced by KC1 (56 mM) was decreased by paeoniflorin (1 x [10.sup.-4] M) in both the epididymal and the prostatic portions (Fig.
Scallops that are active swimmers and mainly rely on phasic contractions during an escape response should have light shells, a high aspect ratio, and sink slowly, and these species should have a higher proportion of phasic muscle (relative to tonic muscle) than scallops using prolonged tonic contractions
. Moreover, the phasic muscle in scallops performing mostly phasic contractions should have both a greater moment and obliqueness, in a plane perpendicular to the hinge, than that in species using prolonged tonic contractions
Also, the tonic contractions
activated by adding [Ca.sup.2+] to ANG II- or PHE-prechallenged endothelium-denuded aortic rings of It-Srac rats did not differ from similarly evoked contractions in the aortic rings of the Sham rats (Figure 4B and D).
No feces or urine incontinence or tonic contractions
had been observed.
The condition begins with successive tonic contractions
in the first three months.