Quantitative mass spectrometry for human melanocortin peptides in vitro and in vivo suggests prominent roles for β-MSH and desacetyl α-MSH in energy homeostasis

Peter Kirwan, Richard G Kay, Bas Brouwers, Vicente Herranz-Pérez, Magdalena Jura, Pierre Larraufie, Julie Jerber, Jason Pembroke, Theresa Bartels, Anne White, Fiona M Gribble, Frank Reimann, I Sadaf Farooqi, Stephen O'Rahilly, Florian T Merkle