Gabas-Rivera, C. Barranquero, C. Martinez-Beamonte, R. Navarro, M.A. Surra, J.C. Osada, J. Dietary squalene increases high density lipoprotein-cholesterol and paraoxonase 1 and decreases oxidative stress in mice PLoS One 10.1371/journal.pone.0104224 2014 2014