Publications by authors named "Mariana Gomes Rego"
Progesterone receptors in extratesticular ducts of the Amazonian stingray Potamotrygon wallacei: A potential role in sperm maturation and aggregate formation.
Ruben Dario Morales-Gamba Maria Lúcia Góes Araújo José Fernando Marques Barcellos Mariana Gomes Rêgo Lucas Castanhola Dias
Gen Comp Endocrinol
December 2023
Article Synopsis
- The study investigates the role of progesterone (P) in sperm maturation and aggregation in male cururu stingrays, focusing on the morphology of extratesticular ducts and the presence of progesterone receptors (PR).
- It was found that morphologically, all ducts had a specific type of epithelium, and active males had PR present in secretory cells, while regressing males lacked PR in crucial areas for sperm nurturing.
- The findings suggest that P is important for sperm metabolism, storage, and the formation of sperm aggregates, indicating its regulatory role during different reproductive phases in this species.