Role of Inhibin and Activin in Oocyte Maturation in Fish
Author Information
Author(s): Teresa R. Petrino, Gesulla Toussaint, Lin Yu-Wai P
Primary Institution: Barry University, School of Natural & Health Sciences, Miami Shores, Florida, USA
Hypothesis
Inhibin and activin modulate gonadotropin- and steroid-induced oocyte maturation in Fundulus heteroclitus.
Conclusion
Inhibin inhibits oocyte maturation while activin enhances it, indicating their opposing roles in the teleost ovary.
Supporting Evidence
- Inhibin significantly reduced the number of follicles undergoing GVBD in response to FPE.
- Activin enhanced DHP-induced GVBD in a dose-dependent manner after 48 hours.
- Inhibin blocked spontaneous maturation of denuded oocytes.
Takeaway
Inhibin stops fish eggs from maturing, while activin helps them mature. They work against each other.
Methodology
In vitro culture of ovarian follicles and induction of oocyte maturation using various hormones and peptides.
Potential Biases
Potential bias in hormone preparations and their effects on oocyte maturation.
Limitations
The study primarily focuses on a single species and may not generalize to other fish.
Participant Demographics
Killifish (Fundulus heteroclitus) collected from salt marshes in Florida.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website