... with excitotoxic ones may constitute a protective mechanism against excess excitatory amino acids ( Saransaari and Oja, 1998 ). Such protective mechanisms simply appear to be expressed earlier and more robustly in anoxia-tolerant organisms like the turtle. Like GABA, glycine is a well-described inhibitory...

...-mail: [email protected] 21 07 1997 ©The Company of Biologists Limited 1997 central nervous system excitatory amino acid Fura-2 Hirudo medicinalis invertebrate leech Glutamate is one of the commonest excitatory neurotransmitters in the central nervous systems...

...H. Hashemzadeh-Gargari; J. Freschi ABSTRACT The effects of L-glutamate and its analogues were studied in voltage-clamped motoneurons of the lobster cardiac ganglion. These excitatory amino acids caused a dose-dependent increase in membrane conductance and an inward current at the resting membrane...