by Universitat Pompeu Fabra – Barcelona Graphical abstract. Credit: Cell Metabolism (2022). DOI: 10.1016/j.cmet.2022.04.001 Researchers from the Girona Biomedical Research Institute (IDIBGI) and Pompeu Fabra University (UPF) in Barcelona, Spain, have identified the role of proline, an amino acid, in humans, mice and flies suffering depression. The results, published in the scientific journal Cell Metabolism, also associate the...