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Serum leptin levels of the control, sham-operated, cervical and thoracic laminectomized groups. Twenty-four–hour serum leptin levels (mean ± SEM) of 4 study groups. At the 24th hour, leptin levels decreased in all groups but the thoracic spinal trauma one, and the decrease was greater in the control group than in the sham and cervical spinal trauma groups (P < 0.05). Different letters indicate the statistically significant difference among the groups (P < 0.05).
