Berta Levavi‐Sivan

Hormonal dynamics reveal a stimulatory role for secretoneurin in zebrafish ovulation

This study shows that secretoneurin stimulates ovulation in zebrafish by increasing gene expression in the hypothalamic-pituitary-ovarian axis and inducing ovulation in anovulatory females.

The satiety hormone cholecystokinin gates reproduction in fish by controlling gonadotropin secretion

This study identifies cholecystokinin (CCK) as the primary regulator of gonadotropin secretion in zebrafish, showing it controls ovarian development and FSH release.

Receptor cavity-based screening reveals potential allosteric modulators of gonadotropin receptors in carp (Cyprinus carpio).

This study identifies allosteric modulators of carp gonadotropin receptors using computational screening and in vitro validation.

High-resolution tracking of unconfined zebrafish behavior reveals stimulatory and anxiolytic effects of psilocybin

This study uses zebrafish behavior tracking to show psilocybin increases rapid swimming and prevents stress-induced irregular swimming, suggesting stimulatory and anxiolytic effects.

Spexin and a novel cichlid-specific spexin paralog both inhibit FSH and LH through a specific galanin receptor (Galr2b) in tilapia

The paper identifies two spexin paralogs in tilapia that inhibit FSH and LH via Galr2b, revealing their role in the brain-pituitary-gonad axis.