- Occurrence of D-aspartic acid and N-methyl-D-aspartic acid in rat neuroendocrine tissues and their role in the modulation of luteinizing hormone and growth hormone release. D'Aniello, A., Di Fiore, M.M., Fisher, G.H., Milone, A., Seleni, A., D'Aniello, S., Perna, A.F., Ingrosso, D. FASEB J. (2000)