Hippocampome.org: a knowledge base of neuron types in the rodent hippocampus

Abstract

Hippocampome.org is a comprehensive knowledge base of neuron types in the rodent hippocampal formation (dentate gyrus, CA3, CA2, CA1, subiculum, and entorhinal cortex). Although the hippocampal literature is remarkably information-rich, neuron properties are often reported with incompletely defined and notoriously inconsistent terminology, creating a formidable challenge for data integration. Our extensive literature mining and data reconciliation identified 122 neuron types based on neurotransmitter, axonal and dendritic patterns, synaptic specificity, electrophysiology, and molecular biomarkers. All ∼3700 annotated properties are individually supported by specific evidence (∼14,000 pieces) in peer-reviewed publications. Systematic analysis of this unprecedented amount of machine-readable information reveals novel correlations among neuron types and properties, the potential connectivity of the full hippocampal circuitry, and outstanding knowledge gaps. User-friendly browsing and online querying of Hippocampome.org may aid design and interpretation of both experiments and simulations. This powerful, simple, and extensible neuron classification endeavor is unique in its detail, utility, and completeness.

Document Details

Document Type
Pub Defense Publication
Publication Date
Sep 24, 2015
Source ID
10.7554/elife.09960

Entities

People

  • Alexander O. Komendantov
  • Charise M. White
  • Christopher L Rees
  • David J Hamilton
  • Diek W. Wheeler
  • Giorgio A. Ascoli

Organizations

  • Air Force Office of Scientific Research
  • George Mason University
  • National Institutes of Health
  • National Science Foundation
  • Northrop Grumman
  • Office of Naval Research
  • W. M. Keck Observatory

Tags

Fields of Study

  • Biology

Readers

  • Database Systems and Applications
  • Neuroscience
  • Theoretical Analysis.