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What's Under Maintenance

18 January 2026

What's Under Maintenance

Thirsty? That's because nervous and hormonal signals are telling your brain you're getting dehydrated. Such signals are vital for our cells' seamless healthy function, as they continuously transport molecules in and out across their membrane to remain essentially biochemically constant – the body-wide process called homeostasis. This study in fruit flies reveals how a set of neurons controls the transport of ions (molecules with a charge, essential for many processes including maintaining pH) a to achieve homeostasis through release of ion transport peptides (seen here in green in the fly gut) and interaction with a molecule called Gyc76C, the receptor for the ion transport peptide signals

Image made using Leica Microsystems microscopy

Read the published research article here

Written by Lindsey Goff

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BPoD stands for Biomedical Picture of the Day. Managed by the MRC Laboratory of Medical Sciences until Jul 2023, it is now run independently by a dedicated team of scientists and writers. The website aims to engage everyone, young and old, in the wonders of biology, and its influence on medicine. The ever-growing archive of more than 4000 research images documents over a decade of progress. Explore the collection and see what you discover. Images are kindly provided for inclusion on this website through the generosity of scientists across the globe.

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