Photoperiod data of autonomic nervous function in 12-week-old SHRs at the end of treatment.

Parasympathetic dominance was indicated when LY379268 treatment was completed, especially in the light phase. *P < 0.05, **P < 0.01, and ***P < 0.001 versus sham control; statistical evaluations were performed using unpaired t-test. Data for each group are the mean ± SEM from five rats. SHR, spontaneously hypertensive rat; HR, heart rate; SD, standard deviation; CV, coefficient of variation; LF, low frequency power; HF, high frequency power; LF/HF ratio, LF to HF ratio; LFnu, normalized low frequency power; HFnu, normalized high frequency power; wk, week-old.