Understanding how chemicals may affect brain development or brain function is a key challenge in modern safety assessment. A recent study presents Zebra_K+, a zebrafish-based experimental system specifically designed as a New Approach Method (NAM) to investigate potential effects of substances on the nervous system.

Using live zebrafish embryos and early larvae, the researchers demonstrate that this platform can detect specific developmental and pharmacological effects. These findings show that the approach is sensitive to neuroactive substances and capable of capturing biologically meaningful changes during early life stages.

Importantly, Zebra_K+ can be used for neurotoxicity screenings, as it can identify substances interfering with sensorimotor circuits and neuronal plasticity in vivo, allowing for prioritizing positive hits for more extensive testing. This approach contributes to more modern and scientifically robust safety assessment frameworks.

For more information and to read the full article and its key messages, click here.