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Citation for Study 12826

About Citation title: "Sustained high levels of neuregulin-1 in the longest-lived rodents; a key determinant of rodent longevity.".
About Study name: "Sustained high levels of neuregulin-1 in the longest-lived rodents; a key determinant of rodent longevity.".
About This study is part of submission 12826 (Status: Published).

Citation

Edrey Y.H., Casper D., Huchon D., Mele J., Gelfond J.A., Kristan D.M., Nevo E., & Buffenstein R. 2012. Sustained high levels of neuregulin-1 in the longest-lived rodents; a key determinant of rodent longevity. Aging Cell, 11(2): 213-222.

Authors

  • Edrey Y.H.
  • Casper D.
  • Huchon D.
  • Mele J.
  • Gelfond J.A.
  • Kristan D.M.
  • Nevo E.
  • Buffenstein R.

Abstract

Naked mole-rats (Heterocephalus glaber), the longest-lived rodents, live 7-10 times longer than similarly sized mice and exhibit normal activities for approximately 75% of their lives. Little is known about the mechanisms that allow them to delay the aging process and live so long. Neuregulin-1 (NRG-1) signaling is critical for normal brain function during both development and adulthood. We hypothesized that long-lived species will maintain higher levels of NRG-1 and that this contributes to their sustained brain function and concomitant maintenance of normal activity. We monitored the levels of NRG-1 and its receptor ErbB4 in H. glaber at different ages ranging from 1 day to 26 years and found that levels of NRG-1 and ErbB4 were sustained throughout development and adulthood. In addition, we compared seven rodent species with widely divergent (4-32 year) maximum lifespan potential (MLSP) and found that at a physiologically equivalent age, the longer-lived rodents had higher levels of NRG-1 and ErbB4. Moreover, phylogenetic independent contrast analyses revealed that this significant strong correlation between MLSP and NRG-1 levels was independent of phylogeny. These results suggest that NRG-1 is an important factor contributing to divergent species MLSP through its role in maintaining neuronal integrity.

Keywords

aging; cerebellum; erbb4; imum lifespan; max-; naked mole-rat; neuregulin-1; neurotrophic factors; spalax

External links

About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S12826
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