Lodenafil treatment in the monocrotaline model of pulmonary hypertension in rats

J Bras Pneumol. 2014 Jul-Aug;40(4):421-4. doi: 10.1590/s1806-37132014000400010.
[Article in English, Portuguese]

Abstract

We assessed the effects of lodenafil on hemodynamics and inflammation in the rat model of monocrotaline-induced pulmonary hypertension (PH). Thirty male Sprague-Dawley rats were randomly divided into three groups: control; monocrotaline (experimental model); and lodenafil (experimental model followed by lodenafil treatment, p.o., 5 mg/kg daily for 28 days) Mean pulmonary artery pressure (mPAP) was obtained by right heart catheterization. We investigated right ventricular hypertrophy (RVH) and IL-1 levels in lung fragments. The number of cases of RVH was significantly higher in the monocrotaline group than in the lodenafil and control groups, as were mPAP and IL-1 levels. We conclude that lodenafil can prevent monocrotaline-induced PH, RVH, and inflammation.

Avaliamos os efeitos da lodenafila na hemodinâmica e inflamação no modelo experimental de hipertensão pulmonar (HP) induzida por monocrotalina em ratos. Trinta ratos Sprague-Dawley foram randomicamente distribuídos em três grupos: controle, monocrotalina (modelo experimental) e lodenafila (modelo experimental e tratado com 5 mg/kg lodenafila v.o. por 28 dias). A pressão média de artéria pulmonar (PAPm) foi obtida por cateterismo cardíaco direito. Foram determinados a hipertrofia ventricular direita (HVD) e os níveis de IL-1 em fragmentos de pulmão. O grupo monocrotalina apresentou valores significativamente maiores de PAPm, HVD e IL-1 em comparação aos grupos controle e lodenafila. Concluímos que a lodenafila pode prevenir o desenvolvimento de HP, HVD e inflamação.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Carbonates / therapeutic use*
  • Disease Models, Animal
  • Hypertension, Pulmonary / chemically induced
  • Hypertension, Pulmonary / drug therapy*
  • Male
  • Monocrotaline
  • Piperazines / therapeutic use*
  • Pyrimidines / therapeutic use*
  • Random Allocation
  • Rats
  • Rats, Sprague-Dawley

Substances

  • Carbonates
  • Piperazines
  • Pyrimidines
  • lodenafil carbonate
  • Monocrotaline