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. Author manuscript; available in PMC: 2014 Jun 10.
Published in final edited form as: Regul Pept. 2013 Mar 27;184:96–103. doi: 10.1016/j.regpep.2013.03.028

Figure 5. Stimulation of muscle contraction by melatonin.

Figure 5

Contraction of muscle cells was measured as decrease in basal cell length in response to various concentrations of melatonin. Muscle cells (0.5 ml cell suspension) were treated with melatonin for 30 s and the reaction was terminated with 0.1% acrolein. The mean length of 50 muscle cells was measured by scanning micrometry and was compared with the length of untreated muscle cells (125±4 μm). The contractile response was expressed as the percent decrease in the mean cell length from control cell length. Values are means±SEM of 6 experiments.