1 Department of Biochemistry and Molecular Biomedicine, and Institute of Biomedicine (IBUB), University of Barcelona, Barcelona, Spain. fvillarroya@ub.edu.
2 CIBER Fisiopatologia de la Obesidad y Nutricion, Instituto de Salud Carlos III, Madrid, Spain. fvillarroya@ub.edu.
3 Department of Biochemistry and Molecular Biomedicine, and Institute of Biomedicine (IBUB), University of Barcelona, Barcelona, Spain.
4 CIBER Fisiopatologia de la Obesidad y Nutricion, Instituto de Salud Carlos III, Madrid, Spain.