The Effect of Electroacupuncture at “Ciliao” (BL32) / “Zhongliao” (BL33) on EMG Action Potential of External Urethral Sphincter and Expression of CTGF and PGP9.5 Protein in Female Rats with Stress Urinary Incontinence
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The Effect of Electroacupuncture at “Ciliao” (BL32) / “Zhongliao” (BL33) on EMG Action Potential of External Urethral Sphincter and Expression of CTGF and PGP9.5 Protein in Female Rats with Stress Urinary Incontinence
Journal of Traditional Chinese MedicineVol. 64, Issue 16, Pages: 1678-1683(2023)
CAI Mingxing,YANG Dan,DING Dou,et al.The Effect of Electroacupuncture at “Ciliao” (BL32) / “Zhongliao” (BL33) on EMG Action Potential of External Urethral Sphincter and Expression of CTGF and PGP9.5 Protein in Female Rats with Stress Urinary Incontinence[J].Journal of Traditional Chinese Medicine,2023,64(16):1678-1683.
CAI Mingxing,YANG Dan,DING Dou,et al.The Effect of Electroacupuncture at “Ciliao” (BL32) / “Zhongliao” (BL33) on EMG Action Potential of External Urethral Sphincter and Expression of CTGF and PGP9.5 Protein in Female Rats with Stress Urinary Incontinence[J].Journal of Traditional Chinese Medicine,2023,64(16):1678-1683.DOI: 10.13288/j.11-2166/r.2023.16.011.
The Effect of Electroacupuncture at “Ciliao” (BL32) / “Zhongliao” (BL33) on EMG Action Potential of External Urethral Sphincter and Expression of CTGF and PGP9.5 Protein in Female Rats with Stress Urinary Incontinence
To observe the possible mechanism of electroacupuncture (EA) at Ciliao (BL32)/ Zhongliao (BL33) in the treatment of female stress urinary incontinence (SUI).
Methods
2
Fifty female SD rats were randomly divided into normal group, model group, BL32/ BL33 group, non-channel point group, and Hegu (LI 4) group, with 10 rats in each group. The rats in all groups except the normal group were given bilateral ovariectomy and vaginal dilatation to establish the SUI model. After successful modeling, EA, 2 Hz frequency, 1 mA density dilatational wave, 20 min each time, once daily was performed at the corresponding acupoints in the BL32/ BL33 group, non-channel point group, and LI4 group, five consecutive days per week, two days off, for 4 weeks. Rats in the normal group and model group were not given any interventions. After the intervention, the urodynamic indicators including abdominal pressure leak point pressure (ALPP) and urethral closure pressure (MUCP), and EMG of the external urethral sphincter including amplitude and frequency were assessed, and the expression of connective tissue growth factor (CTGF) and protein gene product 9.5 (PGP9.5) in the bladder neck urethral sphincter were detected.
Results
2
Compared to those in the normal group, the ALPP, MUCP, EMG amplitude and frequency of external urethral sphincter, and the expression levels of PGP9.5 and CTGF in bladder neck urethral sphincter significantly decreased in the model group (
P
<0.01). Compared to those in the model group, the levels of ALPP, MUCP, EMG amplitude and frequency of external urethral sphincter, and the expression levels of PGP9.5 and CTGF in the BL32/ BL33 group, as well as the ALPP level and the expressions of PGP9.5 and CTGF in the non-channel point group increased (
P
<0.05 or
P
<0.01). Compared to those in the BL32/ BL33 group, the level of ALPP, MUCP, EMG amplitude and frequency of external urethral sphincter, expression levels of PGP9.5 and CTGF in bladder neck urethral sphincter significantly decreased (
P
<0.05 or
P
<0.01).
Conclusion
2
EA at BL32/ BL33 can improve the expression of EMG action potential of external urethral sphincter, and up-regulate the expression of CTGF and PGP9.5 in urethral sphincter of bladder neck, thereby getting involved in the neurofluid regulation of sacral plexus parasympathetic pathway and relieving vesicourethral dysfunction in SUI rats.
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Keywords
references
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