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Gil Levkowitz

A portion of the mouse hypothalamus reveals that the protein made by the Otp gene (green) is expressed in all the neurons (red) that drive hunger – and the combined color is therefore yellow. It was known that in the developing brain, Otp is needed for the generation of these neurons. The study found that during adulthood, Otp is crucial for causing these neurons to express AgRP, a major hunger-promoting substance
17.08.2026

Known to shape the brain before birth, this master switch is repurposed in the adult brain to regulate mental and metabolic networks

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02.02.2024

Weizmann Institute study challenges an old dogma regarding the pituitary gland’s embryonic origins and may lead to new insights into growth...

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18.01.2023

Stress-resilient fish are born that way; their immune system reveals why

Shutterstock
28.12.2021

Oxytocin in a developing fish brain determines later social behavior  

Gil Levkowitz
29.07.2019

Some hormones are kept in special nodes for quick release. New research reveals how one hormone is restocked and stored

pituitary
07.01.2019

The cells that keep blood vessels in the pituitary permeable to hormones may hold the key to future drug delivery

zebrafish eye
16.07.2018

The iris in the zebrafish has a distinctive crystal structure that both camouflages the eye and prevents unwanted light from entering

social fish
21.02.2017

Fish with two genes for a crucial protein are helping researchers understand its function in neurodevelopmental disorders

Cover illustration: the zebrafish stress response
15.05.2012

A unique ON-OFF switch in the brain controls a main stress hormone

Un interruptor de encendido único para reaccionar al estrés
15.03.2012

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