Estrogen is associated with female sexual behaviors, particularly receptive behaviors during the reproductive cycle. Less is known about the relationship between estrogen and female preference behaviors that may precede receptivity and copulation. Separating the mechanisms underlying preference from receptivity is often confounded by the tightly coupled cycle- or estrogen-dependent expression o...

the purpose of this study was to investigate and compare whether the explant supernatants prepared from endometrial tissues during the proliferative phase, secretory phase and early pregnancy differ in immunosuppressive activity. specimens of nonpregnant endometrium from hysterectomies and normal first trimester decidua following elective aspiration termination of pregnancy were obtained. super...

The endocrine symphony known as the reproductive life cycle consists of a complex series of hormonally driven “movements.” The sole rationale for the reproductive cycle is the generation of a fertilizable ovum and, contingent upon fertilization, the establishment of implantation and of an ongoing gestation. Although fecundity rates vary among species, there can be little question as to the ongo...

The purpose of this study was to investigate and compare whether the explant supernatants prepared from endometrial tissues during the proliferative phase, secretory phase and early pregnancy differ in immunosuppressive activity. Specimens of nonpregnant endometrium from hysterectomies and normal first trimester decidua following elective aspiration termination of pregnancy were obtained. ...

prevalence of abortion is higher in women with autoimmune thyroid disease. in the majority of cases, however, no abnormality of thyroid function is detected despite the high levels of antithyroid antibodies. the direct influence of such harmful autoantibodies in female reproductive organs may serve a role in pregnancy loss. in this study, expression of thyroglobulin in the reproductive tissues ...

Viviparous lizards living in cold climate of high altitude often exhibit atypical reproductive cycles, in which mating and fertilization occur synchronously and annually with parturition occurring at the end of the year. Nevertheless, detailed case studies on atypical reproductive cycles are few. Using anatomical data combined with behavioral observations, we examined the reproductive cycle of ...