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- Title
Low-Intensity Extracorporeal Shock Wave Therapy Ameliorates Detrusor Hyperactivity with Impaired Contractility via Transient Potential Vanilloid Channels: A Rat Model for Ovarian Hormone Deficiency.
- Authors
Chueh, Kuang-Shun; Juan, Tai-Jui; Lu, Jian-He; Wu, Bin-Nan; Lin, Rong-Jyh; Mao, Jing-Wen; Lin, Hung-Yu; Chuang, Shu-Mien; Chang, Chao-Yuan; Shen, Mei-Chen; Sun, Ting-Wei; Juan, Yung-Shun
- Abstract
This study explores low-intensity extracorporeal shock wave therapy (LiESWT)'s efficacy in alleviating detrusor hyperactivity with impaired contractility (DHIC) induced by ovarian hormone deficiency (OHD) in ovariectomized rats. The rats were categorized into the following four groups: sham group; OVX group, subjected to bilateral ovariectomy (OVX) for 12 months to induce OHD; OVX + SW4 group, underwent OHD for 12 months followed by 4 weeks of weekly LiESWT; and OVX + SW8 group, underwent OHD for 12 months followed by 8 weeks of weekly LiESWT. Cystometrogram studies and voiding behavior tracing were used to identify the symptoms of DHIC. Muscle strip contractility was evaluated through electrical-field, carbachol, ATP, and KCl stimulations. Western blot and immunofluorescence analyses were performed to assess the expressions of various markers related to bladder dysfunction. The OVX rats exhibited significant bladder deterioration and overactivity, alleviated by LiESWT. LiESWT modified transient receptor potential vanilloid (TRPV) channel expression, regulating calcium concentration and enhancing bladder capacity. It also elevated endoplasmic reticulum (ER) stress proteins, influencing ER-related Ca2+ channels and receptors to modulate detrusor muscle contractility. OHD after 12 months led to neuronal degeneration and reduced TRPV1 and TRPV4 channel activation. LiESWT demonstrated potential in enhancing angiogenic remodeling, neurogenesis, and receptor response, ameliorating DHIC via TRPV channels and cellular signaling in the OHD-induced DHIC rat model.
- Subjects
EXTRACORPOREAL shock wave therapy; URODYNAMICS; HORMONE deficiencies; CALCIUM channels; ANIMAL disease models; WESTERN immunoblotting; HEAT shock proteins
- Publication
International Journal of Molecular Sciences, 2024, Vol 25, Issue 9, p4927
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms25094927