the effect of exogenous administration of central amino acid neurotransmitters gamma-aminobutyric acid ( gaba ) , glycine , glutamic acid and aspartic acid ) into the cerebroventricular system was studied on gastric ulceration induced in albino rats either by 2 h restraint at 4 degrees c or by 6 h restraint at room temperature ( 30 +/- 2 degrees c ) .
C0002520
amino acid
C0061472
glutamic acid