Skip to main content
eScholarship
Open Access Publications from the University of California

Calcium-binding proteins are concentrated in the CA2 field of the monkey hippocampus: a possible key to this region's resistance to epileptic damage.

  • Author(s): Leranth, C
  • Ribak, CE
  • et al.
Abstract

Previous immunocytochemical studies have shown a heterogeneous distribution of parvalbumin (PA) and calbindin (CB) in the rat hippocampal formation. The results of the present study showed a heterogeneous distribution of PA and CB in primate Ammon's horn. The density and intensity of immunoreactivity for both of these calcium-binding proteins was greatest in CA2 as compared to CA1 and CA3. CB-immunoreactivity was localized to the cell bodies, dendrites, and axon initial segments of pyramidal cells whereas PA-immunostaining was found in the axon terminals, dendrites and cell bodies of interneurons that have features similar to GABAergic inhibitory neurons. Based on previous studies that have shown a protective role of calcium-binding proteins in neurons exposed to hyperstimulation, these results suggest that the resistance of CA2 pyramidal cells in temporal lobe epilepsy is due to the high concentration of CB and PA in this region of Ammon's horn.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Main Content
Current View