Fig. 4 | Hypertension Research

Fig. 4

From: Dark-phase melatonin administration does not reduce blood pressure but induces changes in parameters related to the control of the cardiovascular system in spontaneously hypertensive rats

Fig. 4

Amplitude and the percent rhythm of heart rate, systolic blood pressure, pulse pressure and locomotor activity in rats with nocturnal melatonin administration at three concentrations (Mel2, n = 7; Mel10, n = 5 and Mel45, n = 8) and in the placebo group (n = 9). The graphs contain the results of one-way ANOVA. C control week, M1, M2 and M3 first, second and third week with melatonin administration. Data are visualised as individual datapoints and arithmetic mean ± the standard error of the mean

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