The [Ca2+]i transient of ventricular myocytes during normal excitation-contraction coupling is the summation of primary Ca2+ release events, which originate at the junction of the sarcoplasmic reticulum (SR) and the T-tubular system. Studies in small mammals have shown a high density of release sites, but little is known of larger mammals. We have studied the spatial distribution of SR Ca2+ rel...

The [Ca ]i transient of ventricular myocytes during normal excitation-contraction coupling is the summation of primary Ca release events, which originate at the junction of the sarcoplasmic reticulum (SR) and the T-tubular system. Studies in small mammals have shown a high density of release sites, but little is known of larger mammals. We have studied the spatial distribution of SR Ca release ...

background chitosan is a naturally occurring biopolymer which has been widely used in a variety of biomedical applications including local antibiotic delivery due to its excellent mechanical properties, biodegradability and biocompatibility. beads are spherical, porous carriers which are prepared from various materials including chitosan. objectives the current study aimed to fabricate a new co...

The release of neurotransmitter-filled vesicles after action potentials occurs with discrete time courses: submillisecond phasic release that can be desynchronized by activity followed by "delayed release" that persists for tens of milliseconds. Delayed release has a well-established role in synaptic integration, but it is not clear whether desynchronization of phasic release has physiological ...

6 Gastroenterology & Hepatology Volume 6, Issue 1, Supplement 1 January 2010 Multiple daily dosing of 5-ASA for UC has been a standard practice since the 1940s. However, these regimens can lead to poor patient adherence. Recently, several 5-ASA formulations have demonstrated non-inferiority to multiple daily dosing, including ethylcellulose-coated microgranules (Pentasa),1 Multi-Matrix delayed ...