Urinary bladder contraction and relaxation: physiology and pathophysiology

KE Andersson, A Arner - Physiological reviews, 2004 - journals.physiology.org
The detrusor smooth muscle is the main muscle component of the urinary bladder wall. Its
ability to contract over a large length interval and to relax determines the bladder function …

Calcium sparks in smooth muscle

JH Jaggar, VA Porter, WJ Lederer… - American Journal of …, 2000 - journals.physiology.org
Local intracellular Ca2+ transients, termed Ca2+ sparks, are caused by the coordinated
opening of a cluster of ryanodine-sensitive Ca2+ release channels in the sarcoplasmic …

Overactive bladder and incontinence in the absence of the BK large conductance Ca2+-activated K+ channel

AL Meredith, KS Thorneloe, ME Werner… - Journal of Biological …, 2004 - ASBMB
BK large conductance voltage-and calcium-activated potassium channels respond to
elevations in intracellular calcium and membrane potential depolarization, braking …

Sarcoplasmic reticulum function in smooth muscle

S Wray, T Burdyga - Physiological reviews, 2010 - journals.physiology.org
The sarcoplasmic reticulum (SR) of smooth muscles presents many intriguing facets and
questions concerning its roles, especially as these change with development, disease, and …

Excitation-contraction coupling in gastrointestinal and other smooth muscles

TB Bolton, SA Prestwich, AV Zholos… - Annual review of …, 1999 - annualreviews.org
▪ Abstract The main contributors to increases in [Ca2+] i and tension are the entry of Ca2+
through voltage-dependent channels opened by depolarization or during action potential …

Ion channels in smooth muscle: regulators of intracellular calcium and contractility

KS Thorneloe, MT Nelson - Canadian journal of physiology and …, 2005 - cdnsciencepub.com
Smooth muscle (SM) is essential to all aspects of human physiology and, therefore, key to
the maintenance of life. Ion channels expressed within SM cells regulate the membrane …

Signaling between SR and plasmalemma in smooth muscle: sparks and the activation of Ca2+-sensitive ion channels

GC Wellman, MT Nelson - Cell calcium, 2003 - Elsevier
Intracellular calcium ions are involved in the regulation of nearly every aspect of cell
function. In smooth muscle, Ca2+ can be delivered to Ca2+-sensitive effector molecules …

Calcium-induced calcium release in smooth muscle: loose coupling between the action potential and calcium release

ML Collier, G Ji, YX Wang, MI Kotlikoff - The Journal of general …, 2000 - rupress.org
Calcium-induced calcium release (CICR) has been observed in cardiac myocytes as
elementary calcium release events (calcium sparks) associated with the opening of L-type …

Regulation of urinary bladder smooth muscle contractions by ryanodine receptors and BK and SK channels

GM Herrera, TJ Heppner… - American Journal of …, 2000 - journals.physiology.org
This study examines the roles of voltage-dependent Ca2+ channels (VDCC), ryanodine
receptors (RyRs), large-conductance Ca2+-activated K+ (BK) channels, and small …

The physiological function of lower urinary tract smooth muscle

CH Fry, E Meng, JS Young - Autonomic neuroscience, 2010 - Elsevier
The lower urinary tract is a muscular system composed of the urinary bladder and the
outflow tract. During filling with urine the bladder is relaxed and the outflow tract offers a high …