The neurotransmitter GABA has been shown to induce the transdifferentiation of α-cells into β-cells, restoring normoglycaemia in a mouse model of diabetes mellitus. A recent paper by Amanda Ackermann and colleagues, however, failed to reproduce these findings. Here, we discuss the discrepant findings and propose a systematic approach to solve the controversy.
- Decio L. Eizirik
- Esteban N. Gurzov
