Right isomerism of the brain in inversus viscerum mutant mice

Ryosuke Kawakami, Alice Dobi, Ryuichi Shigemoto, Isao Ito

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Left-right (L-R) asymmetry is a fundamental feature of higher-order neural function. However, the molecular basis of brain asymmetry remains unclear. We recently reported L-R asymmetry of hippocampal circuitry caused by differential allocation of N-methyl-O-aspartate receptor (NMDAR) subunit GluRε2 (NR2B) in hippocambal synapses. Using electrophysiology and immunocytochemistry, here we analyzed the hippocampal circuitry of the inversus viscerum (iv) mouse that has a randomized laterality of internal organs. The iv mouse hippocampus lacks L-R asymmetry, it exhibits right isomerism in the synaptic distribution of the ε2 subunit, irrespective of the laterality of visceral organs. This independent right isomerism of the hippocampus is the first evidence that a distinct mechanism downstream of the iv mutation generates brain asymmetry.

Original languageEnglish
Article numbere1945
JournalPloS one
Volume3
Issue number4
DOIs
Publication statusPublished - Apr 16 2008

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • General

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    Kawakami, R., Dobi, A., Shigemoto, R., & Ito, I. (2008). Right isomerism of the brain in inversus viscerum mutant mice. PloS one, 3(4), [e1945]. https://doi.org/10.1371/journal.pone.0001945