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Related Experiment Video

Updated: Dec 28, 2025

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Bladder attack: transient bladder ischemia leads to a reversible decrease in detrusor compliance.

Andrew T Tracey1, Uzoma A Anele1, Randy A Vince1

  • 1Division of Urology, Department of Surgery, Virginia Commonwealth University School of Medicine, Richmond, VA, USA.

Translational Andrology and Urology
|February 11, 2020
PubMed
Summary
This summary is machine-generated.

Acute ischemia and hypoxia increase bladder smooth muscle tone, but this effect is reversible with reperfusion. Anticholinergic drugs may block this response, indicating a link to acetylcholine release.

Keywords:
Smooth musclehypoxiamyographypathophysiologyreperfusion

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Area of Science:

  • Urology
  • Physiology
  • Ischemia Research

Background:

  • Chronic ischemia's impact on bladder function is known, but acute effects remain understudied.
  • This research investigates acute ischemia and hypoxia in detrusor smooth muscle (DSM) and bladder function.

Purpose of the Study:

  • To evaluate the relationship between transient ischemia and bladder function.
  • To characterize the effects of acute ischemia and hypoxia on detrusor smooth muscle (DSM) and bladder physiology.

Main Methods:

  • Organ bath and myography used on pig and human DSM strips under starvation/hypoxia.
  • Ex vivo perfused pig bladder model recreated ischemic conditions.
  • Bladder pressure and tissue oxygenation monitored during carbachol-induced voiding.

Main Results:

  • Ischemia/hypoxia significantly increased resting tone in DSM strips (over two-fold) and ex vivo bladder pressure (225%).
  • Contractions were weaker under ischemia but recovered with reperfusion.
  • Increased tone was blocked by atropine, suggesting an anticholinergic mechanism.

Conclusions:

  • Transient ischemia/hypoxia acutely increases detrusor smooth muscle tone and bladder pressure.
  • This effect is reversible upon reperfusion.
  • The response is blocked by anticholinergics, suggesting involvement of acetylcholine release.