Skip to main content
. 2009 Mar 2;106(11):4513–4518. doi: 10.1073/pnas.0807974105

Fig. 5.

Fig. 5.

Effect of NaHS or l-Cys on intracavernous pressure in anesthetized rats. (A) NaHS (10, 30, and 100 μg per rat) caused significant dose-dependent increases in intracavernous pressure. Ach (50, 100, and 500 μg/ per at) caused a dose-dependent increase in intracavernous pressure. (B) l-Cys at a dose of 30 μg per rat caused an increase in intracavernous pressure. Intravenous administration of 50 mg/kg PAG significantly inhibited l-Cys-induced penile erection (***, P < 0.0001; †, P < 0.05). (C) NaHS at a dose of 10 μg per rat did not cause any change in arterial blood pressure whereas 30 and 100 μg of NaHS per rat caused a significant increase in blood pressure. Ach (50, 100, and 500 μg per rat) caused a dose-dependent significant decrease in blood pressure (**, P < 0.01; *, P < 0.05 vs. saline). Data were obtained from 7 separate experiments for NaHS and 4 for l-Cys.