Fig. 2
CIH-induced sympatoexcitation is markedly reduced by acute inhibition of NTS astrocytes. (A) Representative power spectral density (PSD) spectrum of heart rate variability analysis and quantitative summary data showing cardiac autonomic balance through (B) low frequency (LF), (C) high frequency (HF) and (D) LF/HF ratio spectral components in normoxia (FiO2 21%). Data presented as mean ± standard error of the mean (SEM). *, p < 0.05; One-Way ANOVA for repeated measurements followed by Holm-Sidak pos hoc test. N = 4