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Keywords = ketamine-induced uropathy

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9 pages, 3953 KiB  
Article
Ketamine Inhalation Alters Behavior and Lower Urinary Tract Function in Mice
by Shu-Yu Wu, Chun-Kai Hsu, Li-Yi Lim, Yi-Chyan Chen, Hsi-Hsien Chang and Stephen Shei-Dei Yang
Biomedicines 2023, 11(1), 75; https://doi.org/10.3390/biomedicines11010075 - 28 Dec 2022
Cited by 1 | Viewed by 2424
Abstract
We aimed to evaluate behavioral and lower urinary tract changes in mice using a novel ketamine inhalation model mimicking human ketamine abusers and compare the results to those obtained using a ketamine intraperitoneal injection model. C57BL/6N mice were placed in a transparent acrylic [...] Read more.
We aimed to evaluate behavioral and lower urinary tract changes in mice using a novel ketamine inhalation model mimicking human ketamine abusers and compare the results to those obtained using a ketamine intraperitoneal injection model. C57BL/6N mice were placed in a transparent acrylic observation cage connected to an ultrasonic nebulizer producing ketamine (KI) or saline (SI) fog. The mice were given KI or SI fog twice a week for three months. In another experiment arm, the mice were given intraperitoneal ketamine injections (KP) or saline injections (SP) twice a week for three months. The presence of urine ketamine (>100 ng/mL) was determined using a quick test kit. Locomotor activity was recorded by video using the open field test. Lower urinary tract function was assessed using urine spots, cystometry and histology. KI and KP mice crossed the center more frequently and traveled farther than SI and SP mice. Only KI mice, however, demonstrated popcorn-like jumping, and frequent center crossing. Detrusor overactivity, reduced cystometric bladder capacity, and denuded mucosa were observed in both KI and KP mice. Ketamine inhalation induces behavioral and lower urinary tract changes in mice that are comparable to intraperitoneal ketamine injections. Full article
(This article belongs to the Topic Animal Models of Human Disease)
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