University of Aveiro: Glycation and oxidation of histones H25 and H1 - in vitro study and characterization by mass spectrometry Data detailed in ... According to a study from Aveiro, Portugal, “Among the post-translational modifications, oxidation and glycation are of special interest, especially in ... For more information, contact S. Guedes, Dept. of Chemistry, University of Aveiro, 3810- 193 Aveiro, Portugal.