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Updated: May 31, 2026
07:15
Robust Ligature-Induced Model of Murine Periodontitis for the Evaluation of Oral Neutrophils
Published on: January 21, 2020
Effect of periodontitis on erectile function and its possible mechanism
Zili Zuo1, Jun Jiang, Rui Jiang
1Department of Urology, Affiliated Hospital, Luzhou Medical College, Department of Statistics, Luzhou, China.
The Journal of Sexual Medicine
|June 25, 2011
Summary
Periodontitis impairs erectile function by reducing endothelial nitric oxide synthase (eNOS) protein expression and nitric oxide synthase (NOS) activity in penile tissue. This study links periodontitis-induced inflammation to erectile dysfunction (ED).
Area of Science:
- Urology
- Cardiology
- Periodontology
Background:
- Periodontitis is a significant risk factor for cardiovascular diseases.
- Erectile dysfunction (ED) is strongly associated with cardiovascular diseases.
- Endothelial nitric oxide synthase (eNOS) in penile tissue is crucial for erection.
Purpose of the Study:
- To investigate the impact of periodontitis on erectile function.
- To explore the underlying mechanisms of periodontitis-induced erectile dysfunction.
Main Methods:
- Periodontitis was induced in rats.
- Evaluated erectile function (ICPmax/MAP ratio).
- Measured eNOS expression, serum inflammatory markers (CRP, TNF-α), NOS activity, and cGMP levels.
Main Results:
- Periodontitis rats showed significantly reduced erectile function and lower eNOS protein levels and NOS activity.
- Increased serum CRP and TNF-α levels were observed in periodontitis rats.
- No significant changes in eNOS mRNA expression or penile ultrastructure were noted.
Conclusions:
- Periodontitis impairs penile erection function.
- Reduced eNOS expression and NOS activity, driven by systemic inflammation from periodontitis, may contribute to ED.
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