Effects of Sleep Deprivation, Nicotine, and Selenium on Wound Healing in Rats
Effects of sleep deprivation (SD), nicotine, and selenium (Se) on woundhealing were studied in 50 male rats (Sprague-Dawley strain). Fullskin-thickness burns were produced in animals. Then, SD, nicotine, andSe administrations were applied to animals in different groups. Woundhealing was assessed by pathological analysis of wound by countingfibroblasts, capillary vessels, polymorphonuclear leucocytes (PNLs), andby measuring radiolabeled immunoglobulin G (IgG) amount in woundarea by radio-pharmaceutical and immunoscintigraphic procedures. Thenumber of fibroblasts and capillary vessels were higher in control andSe groups than in sleep deprivation and nicotine groups, and the numberof PNLs and the radiolabeled polyvalent IgG levels were higher inSD and nicotine groups than in control and Se groups. The resultssuggest that SD and nicotine may delay wound healing and that Sesupplementation may accelerate wound healing by preventing nicotineinducedoxidative stress and lipid peroxidation.