secretory phase


Also found in: Dictionary, Thesaurus, Wikipedia.
Related to secretory phase: menstrual phase, Proliferative phase

secretory phase

the phase of the menstrual cycle after the release of an ovum from a mature ovarian follicle. The corpus luteum, stimulated by luteinizing hormone (LH), develops from the ruptured follicle. It secretes progesterone, which stimulates the development of the glands and arteries of the endometrium, causing it to become thick and spongy. In a negative-feedback response to the increased level of progesterone in the blood, the secretion of LH from the pituitary decreases. In the absence of an embryo and its secretion of chorionic gonadotropin, the secretory phase ends. The corpus luteum involutes, progesterone levels fall, and menstruation occurs. Also called luteal phase, progestational phase. Compare menstrual phase, proliferative phase.

secretory phase

The stage of the menstrual cycle immediately following ovulation, during which the womb lining is at full thickness and its mucus glands are actively secreting.
References in periodicals archive ?
Immunohistochemical and immunoassay results showed increased apelin expression during the secretory phase in glandular cells of eutopic and ectopic endometrium.
In conclusion, our results point out secretory phase glandular cell dominancy of apelin expression in both of the eutopic and ectopic endometrium.
Serum and tissue concentrations of apelin Group 1 (controls, n=15) Serum apelin (pg/ml) proliferative phase 711 [+ or -] 122 secretory phase 703 [+ or -] 124 p-value NS Eutopic endometrial apelin (pg/mg) proliferative phase 1317 [+ or -] 299 secretory phase 2499 [+ or -] 208 p-value SPP vs.
The present study revealed that most erythrocytes in the menstrual phase are isomorphic but that all erythrocytes detected in the other phases are dysmorphic, suggesting the existence of dysmorphic erythrocytes in urine from healthy women, especially in the proliferative and secretory phases of the menstrual cycle.
These atypical cells resembled predecidual stromal cells at the middle to late secretory phases (Fig 4, left).
They resembled Comet cells of high-grade ESS, fibroblasts, decidual cells, and predecidual endometrial stromal cells at the middle to late secretory phases.