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Review
. 1988;72(3):185-90.
doi: 10.1007/BF01243418.

Release of neuroactive substances: homocysteic acid as an endogenous agonist of the NMDA receptor

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Review

Release of neuroactive substances: homocysteic acid as an endogenous agonist of the NMDA receptor

K Q Do et al. J Neural Transm. 1988.

Abstract

Sulfur containing amino acids such as homocysteic acid (HCA), cysteinsulfinic acid, homocysteinsulfinic acid are released by depolarization of slices from various rat brain regions in a Ca++-dependent manner. L-HCA excites caudate neurons through their N-methyl-D-aspartic acid (NMDA) receptor and potentiates their cortically evoked excitatory postsynaptic potentials. 35S-methionine can label the releasable pool of HCA, and thus appears as a precursor of HCA. Thus HCA is a transmitter candidate which acts predominantly on the NMDA receptor.

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References

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