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Table 2 Effect of short-term patchouli oil exposure on blood platelet MAO-A kinetic parameters in young male rats

From: Does patchouli oil change blood platelet monoamine oxidase-A activity of adult mammals?

Kinetic parameters (%) of MAO-A activity

Conditions of patchouli oil exposure

Control (without exposure)

Short-term

Five drops for 1 h

Ten drops for 4 h

K m (mM)

100.00 ± 4.29

338.10 ± 11.91a

57.14 ± 5.16a

V max (∆OD/mg protein/h)

100.00 ± 4.31

88.52 ± 4.78

103.35 ± 5.26

  1. Results (%) are expressed as mean ± SEM (n = 4–6). The percent changes were calculated with respect to the control. The control value of K m (mM) is 0.21 ± 0.009 and V max (∆OD/mg protein/h) is 2.09 ± 0.09. V max and K m values were calculated from Lineweaver–Burk plot (Fig. 3). Kinetic studies were carried out using varying concentrations (0.05–0.4 mM) of serotonin. Other details are the same as described in the legend of Figs. 3 and 4
  2. Significantly different from corresponding control rats a p < 0.001