The effect of sevoflurane inhalation on gabaergic neurons activation

Observation on the GAD67-GFP knock-in mouse

Li Chun Han, Hui Zhang, Wei Wang, Yan Yan Wei, Xing Xing Sun, Youchio Yanagawa, Yun Qing Li, Li Xian Xu, Sheng Xi Wu

Research output: Contribution to journalArticle

Abstract

The mechanisms underlying volatile anesthesia agents are not well elucidated. Emerging researches have focused on the participation of γ-aminobutyric acid (GABA) neurons but there still lacks morphological evidence. To elucidate the possible activation of GABAergic neurons by sevoflurane inhalation in morphology, Fos (as neuronal activity marker) and GABA neurons double labeling were observed on the brain of glutamic acid decarboxylase (GAD) 67-GFP knock-in mice after sevoflurane inhalation. Twenty GAD67-GFP knock-in mice were divided into three groups: S1 group: incomplete anesthesia state induced by sevoflurane; S2 group: complete anesthesia state induced by sevoflurane; control(C) group. Sevoflurane induced a significant increase of Fos expression in the dorsomedial hypothalamic nucleus (DM), periaqueductal grey (PAG), hippocampus (CA1, DG), paraventricular thalamic nucleus (PV), lateral septal nucleus (LS), and cingulate cortex (Cg1 and Cg2) in S1 group compared to C group, and increase of Fos expression in S2 group compared to S1 group. In S2 group, Fos was only expressed in the medial amygdaloid nucleus (MeA), Edinger-Westphal (E-W) nucleus, arcuate hypothalamic nucleus (Arc) and the ventral part of paraventricular hypothalamic nucleus (PaV). Double immunofluroscent staining indicated that in LS, almost all Fos werepresent in GABAergic neurons. In CA1, DG, DM, cg1, cg2, and PAG, Fos was expressed as well, but only few were present in GABAergic neurons. Fos expression was very high in thalamus, but no coexistence were found as noGABAergic neuron was detected in this area. Our results provided morphological evidence that GABAergic transmission in specific brain areas may participate in the sevoflurane-induced anesthesia.

Original languageEnglish (US)
Pages (from-to)2114-2122
Number of pages9
JournalAnatomical Record
Volume293
Issue number12
DOIs
StatePublished - Dec 1 2010
Externally publishedYes

Fingerprint

GABAergic Neurons
Inhalation
breathing
brain
neurons
acid
anesthesia
mice
Anesthesia
coexistence
Septal Nuclei
Periaqueductal Gray
gamma-aminobutyric acid
Dorsomedial Hypothalamic Nucleus
Midline Thalamic Nuclei
paraventricular hypothalamic nucleus
Aminobutyrates
Arcuate Nucleus of Hypothalamus
Glutamate Decarboxylase
thalamus

Keywords

  • γ-aminobutyric acid (GABA)
  • Anesthesia
  • Fos
  • Mouse
  • Sevoflurane

ASJC Scopus subject areas

  • Anatomy
  • Biotechnology
  • Histology
  • Ecology, Evolution, Behavior and Systematics

Cite this

The effect of sevoflurane inhalation on gabaergic neurons activation : Observation on the GAD67-GFP knock-in mouse. / Han, Li Chun; Zhang, Hui; Wang, Wei; Wei, Yan Yan; Sun, Xing Xing; Yanagawa, Youchio; Li, Yun Qing; Xu, Li Xian; Wu, Sheng Xi.

In: Anatomical Record, Vol. 293, No. 12, 01.12.2010, p. 2114-2122.

Research output: Contribution to journalArticle

Han, LC, Zhang, H, Wang, W, Wei, YY, Sun, XX, Yanagawa, Y, Li, YQ, Xu, LX & Wu, SX 2010, 'The effect of sevoflurane inhalation on gabaergic neurons activation: Observation on the GAD67-GFP knock-in mouse', Anatomical Record, vol. 293, no. 12, pp. 2114-2122. https://doi.org/10.1002/ar.21113
Han, Li Chun ; Zhang, Hui ; Wang, Wei ; Wei, Yan Yan ; Sun, Xing Xing ; Yanagawa, Youchio ; Li, Yun Qing ; Xu, Li Xian ; Wu, Sheng Xi. / The effect of sevoflurane inhalation on gabaergic neurons activation : Observation on the GAD67-GFP knock-in mouse. In: Anatomical Record. 2010 ; Vol. 293, No. 12. pp. 2114-2122.
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