Effects of hydrogen sulphide donor, sodium hydrosulphide treatment on the erectile dysfunction in L-NAME-induced hypertensive rats

Yilmaz E., KAYA SEZGİNER E., YILMAZ ORAL D., Cengiz T., Bayatli N., GÜR S.

ANDROLOGIA, cilt.51, sa.5, 2019 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 51 Sayı: 5
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1111/and.13240
  • Dergi Adı: ANDROLOGIA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: erectile dysfunction, hydrogen sulfide, hypertension, inflammation, nuclear factor kappa B, NITRIC-OXIDE SYNTHASE, ENDOTHELIAL DYSFUNCTION, DIABETIC-NEPHROPATHY, OXIDATIVE STRESS, H2S DONORS, INFLAMMATION, EXPRESSION, MOLECULE, FIBROSIS, MODELS
  • Ankara Üniversitesi Adresli: Evet

Özet

Men with hypertension often develop erectile dysfunction (ED). The present study aimed to examine the effects of sodium hydrosulphide (NaHS), a hydrogen (H2S) donor, treatment on ED in nitric oxide synthase (NOS) inhibitor (L-NAME)-induced hypertensive rats. Forty adult Sprague-Dawley rats were divided into four groups: control, NaHS (0.037 mg kg day(-1))-treated control, L-NAME-induced hypertension (40 mg kg day(-1)) and NaHS-treated L-NAME-induced hypertension. The ratio of intracavernosal pressure to mean arterial pressure and isometric tension of corpus cavernosum (CC) were measured. The penile expression of endothelial and neuronal NOS (eNOS and nNOS), inflammation markers [nuclear factor kappa B (NF-kappa B) and inhibitor kappa B alpha (I kappa Ba)], H2S-producing enzymes[cystathionine beta-synthase (CBS) and cystathionine.-lyase (CSE)], the smooth muscle/collagen ratio and H2S concentrations were determined. The blood pressure was significantly increased in the hypertensive group, but not reversed by NaHS. The erectile response in hypertensive rats was partially prevented by NaHS. The relaxation response to electrical field stimulation was increased in CC from NaHS-treated hypertensive rats. NaHS treatment restored decreased protein expression of eNOS, nNOS and CSE as well as smooth muscle/collagen ratio and H2S levels and increased NF-kappa B and I kappa Ba protein expression in the penile tissue of hypertensive rats. NaHS promoted the recovery of erectile responses in hypertensive rats by improvement of neuronal function and downregulation of fibrosis and NF-kappa B signalling.