In the first study, dolphins Behr-Roussel, Pharm D., Ph. D. Fed, from Pelvipharm in Gif sur Yvette, France, and colleague rats a diet of 60 percent of glucose and 5 percent of fat for a total of eight weeks. The rats were treated with sildenafil for the last four weeks, around a clinically relevant concentration of plasm produce 20 nm. The researchers found out that sildenafil improved endothelial function and reduces oxidative stress, even one week after ending of the treatment.
“This colleague persistent improvement of the endothelial function, the giving of chronic sildenafil can hits close to structural and molecular changes in the vessel wall that the use in both indications heart circulation can lead as well as erectile dysfunction as” Behr-Roussel and.
In the second study, Arthur L. Burnett, MD, and his colleagues of the Johns Hopkins University, analyzes in Baltimore, Md., blood of 300 men with type 2 diabetes and erectile dysfunction, the intake of sildenafil or a placebo. The researchers found out that sildenafil improved erectile function clearly, the level of an endothelial marker (cGMP) raises, the level of the markers for oxidative stress decreased (8-isoprostane) and had no significant influence on the height of two inflammatory cytokines.
“These data support the proposal that the treatment of erectile dysfunction offers by this pharmacological therapy penile circulation vessel circulation and heart health use for the” close-Borer nicely and his colleagues.
Diego A. Golombek, Ph. D. Then, from the Universidad Nacional de Quilmes in Buenos Aires, Argentina, and his colleagues injected hamsters with sildenafil at night and turned into the bright light six hours before her usual time to measure, how long it lasted to the rodents adapt to the change.
The researchers found out, that to sildenafil treated hamsters, the new light / dark cycle about 20 to 25 percent older than vehicle-treated hamsters, adjusted by the activity on a traversing wheel measured. The drug functioned only if there was given in the approach of the everyday cycle movement, however. The researchers further show that the aim of cGMP specific phosphodiesterase sildenafil is 5, in the hamster suprachiasmatic nuclei and to what restrained by treatment with sildenafil.
“Our results, the interferences with the cGMP signal could point way in the connection useful [therapeutic] tools be, especially for jet-lay symptoms on flights to the east,” write the authors. “Sildenafil could therefore help, contain bad synchronization with the environment, including the delayed sleep phase syndrome and adaptation to the changing light schedules in other circadian disorders.”
