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dc.creatorHernández-López, L.
dc.creatorCerda-Molina, A.L.
dc.creatorChavira-Ramírez, R.
dc.creatorMondragón-Ceballos, R.
dc.date.accessioned2017-06-30T01:39:50Z
dc.date.available2017-06-30T01:39:50Z
dc.date.issued2010es_ES
dc.identifier1509es_ES
dc.identifier.issn0093-691Xes_ES
dc.identifier.urihttp://repositorio.inprf.gob.mx/handle/123456789/6188
dc.identifier.urihttps://doi.org/10.1016/j.theriogenology.2009.09.029es_ES
dc.language.isoenges_ES
dc.relation73 (4) 468-473 p.es_ES
dc.relationversión del editores_ES
dc.rightsacceso cerradoes_ES
dc.subject.meshAge Factorses_ES
dc.subject.meshAnimalses_ES
dc.subject.meshAtelinae-Metabolismes_ES
dc.subject.meshEstradiol-Metabolismes_ES
dc.subject.meshFeces-Chemistryes_ES
dc.subject.meshFemalees_ES
dc.subject.meshMenopause-Metabolismes_ES
dc.subject.meshMenstrual Cycle-Metabolismes_ES
dc.subject.meshProgesterone-Metabolismes_ES
dc.subject.meshEstradioles_ES
dc.subject.meshProgesteronees_ES
dc.titleAge-dependent changes in fecal 17beta-estradiol and progesterone concentrations in female spider monkeys (Ateles geoffroyi)es_ES
dc.typearticlees_ES
dc.contributor.affiliationDepartamento de Etología, Instituto Nacional de Psiquiatría, Ramón de la Fuente Muñiz, Tlalpan, México, DF, Méxicoes_ES
dc.contributor.emaillhl@imp.edu.mxes_ES
dc.relation.jnabreviadoTHERIOGENOLOGYes_ES
dc.relation.journalTheriogenologyes_ES
dc.identifier.placeEstados Unidoses_ES
dc.date.published2010es_ES
dc.identifier.organizacionInstituto Nacional de Psiquiatría Ramón de la Fuente Muñizes_ES
dc.identifier.eissn1879-3231es_ES
dc.identifier.doi10.1016/j.theriogenology.2009.09.029es_ES
dc.description.monthMares_ES
dc.description.abstractotrodiomaThe objective of this study was to investigate whether sex steroids decreased with age in female black-handed spider monkeys (Ateles geoffroyi). Fecal concentrations of 17beta-estradiol and progesterone (five samples-wk) and the number of ovulatory and anovulatory cycles were compared between adult (n=3) and aged females (n=2). All animals (regardless of age) had higher 17beta-estradiol concentrations during the fertile than the nonfertile phases. However, during the fertile phase, concentrations of this hormone were significantly higher in adult females. Conversely, progesterone concentrations varied normally throughout the menstrual cycle in both adult and aged animals, with no significant difference between age classes. Similarly, there was no significant effect of age on the number of ovulatory and anovulatory cycles. In conclusion, we inferred that the aged female spider monkeys did not reach menopause, instead they remained in a perimenopausal period characterized by changes in fecal concentrations of ovarian steroids and hypothalamus-hypophysis-ovary axis activity, as well as irregular menstrual flows, for prolonged intervalses_ES
dc.subject.kwEstradiol fecal 17bes_ES
dc.subject.kwProgesterona fecales_ES
dc.subject.kwMenopausiaes_ES
dc.subject.kwSenescencia reproductivaes_ES
dc.subject.kwMono arañaes_ES
dc.subject.koFecal 17b-estradioles_ES
dc.subject.koFecal progesteronees_ES
dc.subject.koMenopausees_ES
dc.subject.koReproductive senescencees_ES
dc.subject.koSpider monkeyes_ES


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