- Protein expression changes in the Sprague Dawley rat liver proteome following administration of peroxisome proliferator activated receptor alpha and gamma ligands. White, I.R., Man, W.J., Bryant, D., Bugelski, P., Camilleri, P., Cutler, P., Hayes, W., Holbrook, J.D., Kramer, K., Lord, P.G., Wood, J. Proteomics (2003)