title: Ejaculatory training lengthens the ejaculation latency and facilitates the functioning of the spinal generator for ejaculation of rats with rapid ejaculation.
abstract: A spinal pattern generator controls the ejaculatory response. Central pattern generators (CPGs) may be entrained to improve the motor patterns under their control. In the present study we tested the hypothesis that training of the spinal generator for ejaculation (SGE) by daily copulation until ejaculation, could promote substantive changes in its functioning permitting a better SGE control of the genital motor pattern of ejaculation (GMPE) and, as a consequence, a normalization of the ejaculation latency of rats with rapid ejaculation. To that aim, we evaluated in sexually experienced male rats with rapid ejaculation (1) the effects of daily copulation to ejaculation, following different entrainment schedules, on their ejaculation latencies, (2) the impact of these different ejaculatory entrainment schedules upon the parameters of the GMPE and (3) the possible emergence of persistent changes in the functioning of the SGE associated to the daily ejaculation entrainment schedules. The data obtained show that intense ejaculatory training of rats with rapid ejaculation lengthens the ejaculation latency during copulation and augments the ejaculatory capacity of the SGE in this population when spinalized. Thus, present data reveal that like other CPGs, the SGE can be trained and put forward that training of the SGE by daily copulation to ejaculation might be a promising alternative that should be taken into consideration for the treatment of premature ejaculation.
authors: Laboratorio de Comportamiento Reproductivo, Escuela de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tlaxcala, Tlaxcala, México.
authors: M de L
authors: ML
authors: Rodríguez-Peña
authors: Departamento de Farmacobiología, Cinvestav-SedeSur, Calzada de los Tenorios 235, Col. Granjas Coapa, Deleg. Tlalpan, México.
authors: G
authors: G
authors: Rodríguez-Manzo
authors: Laboratorio de Comportamiento Reproductivo, Escuela de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tlaxcala, Tlaxcala, México.
authors: M
authors: M
authors: Carro-Juárez
mesh_terms: D000818:Animals; D063226:Central Pattern Generators / Q000502:physiology; D003307:Copulation / Q000502:physiology; D004542:Ejaculation / Q000502:physiology*; D004576:Electromyography; D005260:Female; D008297:Male; D009130:Muscle, Smooth / Q000502:physiology*; D010812:Physical Stimulation / Q000379:methods*; D051381:Rats; D012726:Sexual Behavior, Animal / Q000502:physiology*; D013116:Spinal Cord / Q000502:physiology*; D013997:Time Factors