Bladder hyperactivity and increased excitability of bladder afferent neurons associated with reduced expression of Kv1. 4 α-subunit in rats with cystitis

Y Hayashi, K Takimoto… - American Journal …, 2009 - journals.physiology.org
Hyperexcitability of C-fiber bladder afferent pathways has been proposed to contribute to
urinary frequency and bladder pain in chronic bladder inflammation including interstitial …

Molecular determinants of afferent sensitization in a rat model of cystitis with urothelial barrier dysfunction

N Montalbetti, JG Rooney, AC Rued… - Journal of …, 2019 - journals.physiology.org
The internal surface of the urinary bladder is covered by the urothelium, a stratified
epithelium that forms an impermeable barrier to urinary solutes. Increased urothelial …

Hyperexcitability of bladder afferent neurons associated with reduction of Kv1. 4 α-subunit in rats with spinal cord injury

R Takahashi, T Yoshizawa, T Yunoki, P Tyagi… - The Journal of …, 2013 - auajournals.org
Purpose: To clarify the functional and molecular mechanisms inducing hyperexcitability of C-
fiber bladder afferent pathways after spinal cord injury we examined changes in the …

Increased excitability of afferent neurons innervating rat urinary bladder after chronic bladder inflammation

N Yoshimura, WC de Groat - Journal of Neuroscience, 1999 - Soc Neuroscience
The properties of bladder afferent neurons in L6 and S1 dorsal root ganglia of adult rats
were evaluated after chronic bladder inflammation induced by 2 week treatment with …

Inhibitory effects of retigabine, a Kv7 channel activator, on mechanosensitive primary bladder afferent activities and nociceptive behaviors in rats

N Aizawa, D Wakamatsu, J Kida… - Neurourology and …, 2017 - Wiley Online Library
Aims Kv7 voltage‐gated potassium channels have been suggested to modulate mechano‐
afferent transduction and nociception in the bladder. We investigated the effects of …

The KV7 channel activator retigabine suppresses mouse urinary bladder afferent nerve activity without affecting detrusor smooth muscle K+ channel currents

NR Tykocki, TJ Heppner, T Dalsgaard… - The Journal of …, 2019 - Wiley Online Library
Key points KV7 channels are a family of voltage‐dependent K+ channels expressed in many
cell types, which open in response to membrane depolarization to regulate cell excitability …

Negative feedback regulation of nerve-mediated contractions by KCa channels in mouse urinary bladder smooth muscle

GM Herrera, B Etherton, B Nausch… - American Journal of …, 2005 - journals.physiology.org
When the urinary bladder is full, activation of parasympathetic nerves causes release of
neurotransmitters that induce forceful contraction of the detrusor muscle, leading to urine …

Potassium Channel KVα1 Subunit Expression And Function In Human Detrusor Muscle

AM Davies, TJP Batchelor, I Eardley… - The Journal of …, 2002 - auajournals.org
Purpose: We determined whether voltage gated K+ (KV) channels are expressed and
functional in human detrusor smooth muscle Materials and Methods: Information on KV …

Molecular expression and pharmacological evidence for a functional role of kv7 channel subtypes in Guinea pig urinary bladder smooth muscle

SAY Afeli, J Malysz, GV Petkov - PLoS One, 2013 - journals.plos.org
Voltage-gated Kv7 (KCNQ) channels are emerging as essential regulators of smooth muscle
excitability and contractility. However, their physiological role in detrusor smooth muscle …

Urinary K+ promotes irritative voiding symptoms and pain in the face of urothelial barrier dysfunction

N Montalbetti, SD Stocker, G Apodaca, SI Bastacky… - Scientific Reports, 2019 - nature.com
The internal surface of the bladder is lined by the urothelium, a stratified epithelium that
forms an impermeable barrier to water and urine constituents. Abnormalities in the urothelial …