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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.”

Risk factors

To take men with diabetes, smoking, drugs or older than 50 years are particularly endangered for impotence. For example, people are Endangered with diabetes because of her with high risk and arteriosclerosis by a nerve illness, which one diabetic neuropathy. Old person seems a strong indirect risk factor that it are associated with a raised Likelihood of direct risk factors by which some are performed on top. Some drugs can contribute to the impotence, there some operations and radiotherapy treatments are able.

Years ago the standard to the treatment of impotence was a penile implant or long-term Psychotherapeutics. Today there are these popular methods: vacuum devices, oral drugs, locally injected drugs and to surgically implanted devices. Genetic therapy for ED is currently tested in several centers and can offer a long stopping therapeutic beginning for ED. Because ED is able to do a delivery on a man the self-esteem to take, sexual therapy is recommended Increasingly as a form of the treatment on own or in combination with other medical drug. If your impotence problems draw to themselves by low testosterone can be caused hormonotherapy reflectors then in the form of injections or plaster are given. Testosterone substitution therapy is able to do energy to improve the mood, and osseous density raise the increase of muscle weight and measures, Genital interest in older men who can have defective testosterone reflectors. Psychotherapeutics can therefore help, around the people who try are to be overcome without psychic impotence. Hydropathy (coldly douches, for example) is thus able efficiently for ED.

In the course of the years of men complain more than two different genital problems: Deficiency of desire and faint. Impotence or erectile dysfunction is the inability to erection long enough around with the sexual intercourse to hold exercise. Erectile dysfunction (ED) is able to do a complete inability to reach an erection to inconsistent ability, to do this or inclination to erections are maintained to only briefly.

Assembly begins with sensory and spiritual stimulation. Under normal conditions if a man is sexually stimulated his brain sends news after the spinal cord and in the nerves of the penis. The nerve ends in the penis emission of chemical neurotransmitter called neurotransmitters that the cavernosal bodies (both poles of the spongy tissue to relax chip signal) the length of the penis and fill with blood. Becomes how the penis with blood, it increases and is hardened by an erection which overloads.

Surgical operation is able to do sore nerves and arteries near the penis makes the person impotent. So between 35 and 50 percent of the men with diabetes experience impotence. Many current drugs generate impotence as a side effect. Damages of the penis, the spinal cord, prostate gland area, and area vesical pelvic area can lead to impotence by impairment nerves, to smooth muscles, arteries, and fibrous tissues of the bodies cavernosa. Other possible causes of impotence are smokers who affects the blood flow in the veins and arteries, and hormonal changes, how insufficient testosterone. Doctors believe, that psychological factors of 10 to 20 percent of the cases of impotence cause. A small percentage of the men with sporadic and situational impotence.

Sildenafil

Today the most frequent ED treatment with the drug is liable to prescription Sildenafil citrate, sold under the trade name Viagra. Maybe is the mostly published progress the introduction of the oral drug sildenafil citrate (Viagra) was March, 1998.

Impotence, erection disorders often called, refers to the male inability to reach or to maintain an erection long enough exercise, around in sexual intercourse. Impotence is from sterility (inability, adequate to the reproduction produce sperms to make a distinction). Impotence mostly has a physical cause like disease, damage or drug side effects. Impotence is treatable able in all age groups.