1. Hirai S, Horii S, Matsuzaki Y, Ono S, Shimmura Y, Sato K, Egashira Y. Anti-inflammatory effect of pyroglutamyl-leucine on lipopolysaccharide-stimulated RAW 264.7 macrophages. Life Sci. 2014;117(1):1–6.
2. Coussens LM, Werb Z. Inflammation and cancer. Nature. 2012;2012(420):860–7.
3. De Pablos RM, Espinosa-Oliva AM, Sarmiento M, Venero JL. Stress and inflammation: a detrimental combination in the development of neurodegenerative disease. Inflamm Cell Signal. 2014;1:e182.
4. Roy A, Saraf S. Limonoids: overview of significant bioactive triterpenes distributed in plants kingdom. Biol Pharm Bull. 2006;29:191–201.
5. Pekala J, Strub DJ, Koziol A, Lochynski S. Variability of Biological Activities of Limonoids Derived from Plant Sources. Mini-Rev Org Chem. 2015;11:269–79.