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NKCC1 downregulation induces hyperpolarizing shift of GABA responsiveness at near term fetal stages in rat cultured dorsal root ganglion neurons

Overview of attention for article published in BMC Neuroscience, July 2015
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Title
NKCC1 downregulation induces hyperpolarizing shift of GABA responsiveness at near term fetal stages in rat cultured dorsal root ganglion neurons
Published in
BMC Neuroscience, July 2015
DOI 10.1186/s12868-015-0180-4
Pubmed ID
Authors

Joelle N Chabwine, Karel Talavera, Ludo Van Den Bosch, Geert Callewaert

Abstract

GABAA receptor-mediated neurotransmission is greatly influenced by cation-chloride cotransporter activity during developmental stages. In embryonic neurons Na-K-2Cl (NKCC1) cotransporters mediate active chloride uptake, thus increasing the intracellular chloride concentration associated with GABA-induced depolarization. At fetal stages near term, oxytocin-induced NKCC1 downregulation has been implicated in the developmental shift from depolarizing to hyperpolarizing GABA action. Mature dorsal root ganglion neurons (DRGN), however, express high NKCC1 levels and maintain high intracellular chloride levels with consequent GABA-induced depolarization. Gramicidin-perforated patch-clamp recordings were used to assess the developmental change in chloride homeostasis in rat cultured small DRGN at the embryonic day 16 (E16) and 19 (E19). The results were compared to data previously obtained in fetal DRGN at E14 and in mature cells. A significant NKCC1 downregulation, leading to reduction in excitatory GABAergic transmission, was observed at E16 and E19. These results indicate that NKCC1 activity transiently decreases in DRGN at fetal stages near term. This developmental shift in GABAergic transmission may contribute to fetal analgesia and neuroprotection at birth.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 15 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 1 7%
Unknown 14 93%

Demographic breakdown

Readers by professional status Count As %
Student > Doctoral Student 4 27%
Student > Ph. D. Student 3 20%
Other 2 13%
Student > Bachelor 1 7%
Student > Master 1 7%
Other 1 7%
Unknown 3 20%
Readers by discipline Count As %
Neuroscience 3 20%
Medicine and Dentistry 3 20%
Agricultural and Biological Sciences 2 13%
Psychology 1 7%
Pharmacology, Toxicology and Pharmaceutical Science 1 7%
Other 2 13%
Unknown 3 20%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 July 2015.
All research outputs
#20,282,766
of 22,816,807 outputs
Outputs from BMC Neuroscience
#1,054
of 1,244 outputs
Outputs of similar age
#219,471
of 262,658 outputs
Outputs of similar age from BMC Neuroscience
#16
of 20 outputs
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