Chronic pregabalin treatment decreases excitability of dentate gyrus and accelerates maturation of adult-born granule cells

PIRIZ, JOAQUIN; COLL, LUCIA; SCHINDER, ALEJANDRO F.; UCHITEL, OSVALDO DANIEL; PIRIZ, JOAQUIN; LEMPEL, AUGUSTO ABEL; UCHITEL, OSVALDO DANIEL; LEMPEL, AUGUSTO ABEL; COLL, LUCIA; SCHINDER, ALEJANDRO F.

JOURNAL OF NEUROCHEMISTRY

WILEY-BLACKWELL PUBLISHING, INC

Año: 2017 vol. 140 p. 257 - 267

0022-3042

Pregabalin (PGB) is extensively prescribed to treat neurological and neuropsychiatrical conditions such as neuropathic pain, anxiety disorders, and epilepsy. Although PGB is known to bind selectively to the α2δ subunit of voltage-gated calcium channels, there is little understanding about how it exerts its therapeutic effects. In this article, we analyzed the effects of an in vivo chronic treatment with PGB over the physiology of dentate gyrus granule cells (DGGCs) using ex vivo electrophysiological and morphological analysis in adult mice. We found that PGB decreases neuronal excitability of DGGCs. In addition, PGB accelerates maturation of adult-born DGGCs, an effect that would modify dentate gyrus plasticity. Together, these findings suggest that PGB reduces activity in the dentate gyrus and modulates overall network plasticity, which might contribute to its therapeutic effects. (Figure presented.). Cover Image for this issue: doi: 10.1111/jnc.13783.