4.6 Article

Antibacterial and Analgesic Properties of Beta-Caryophyllene in a Murine Urinary Tract Infection Model

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MOLECULES
卷 28, 期 10, 页码 -

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MDPI
DOI: 10.3390/molecules28104144

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cannabis; terpenes; pain; inflammation; intravital microscopy

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Beta-caryophyllene has been shown to have anti-inflammatory effects and potential antibacterial properties. This study investigated the effects of beta-caryophyllene in a murine model of urinary tract infection (UTI) and found that it significantly reduced bacterial burden, improved behavioral responses, and reduced inflammation in the bladder. This suggests that beta-caryophyllene could be a useful adjunct therapy for UTI management.
Beta-caryophyllene has demonstrated anti-inflammatory effects in a variety of conditions, including interstitial cystitis. These effects are mediated primarily via the activation of the cannabinoid type 2 receptor. Additional antibacterial properties have recently been suggested, leading to our investigation of the effects of beta-caryophyllene in a murine model of urinary tract infection (UTI). Female BALB/c mice were intravesically inoculated with uropathogenic Escherichia coli CFT073. The mice received either beta-caryophyllene, antibiotic treatment using fosfomycin, or combination therapy. After 6, 24, or 72 h, the mice were evaluated for bacterial burden in the bladder and changes in pain and behavioral responses using von Frey esthesiometry. In the 24 h model, the anti-inflammatory effects of beta-caryophyllene were also assessed using intravital microscopy. The mice established a robust UTI by 24 h. Altered behavioral responses persisted 72 h post infection. Treatment with beta-caryophyllene resulted in a significant reduction in the bacterial burden in urine and bladder tissues 24 h post UTI induction and significant improvements in behavioral responses and intravital microscopy parameters, representing reduced inflammation in the bladder. This study demonstrates the utility of beta-caryophyllene as a new adjunct therapy for the management of UTI.

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