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Effect of a combination of medium chain triglycerides, linoleic acid, soy lecithin and vitamins A and E on wound healing in rats

DOI: 10.1590/S0102-86502008000300009

Keywords: triglycerides, linoleic acid, wound healing, rats.

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Abstract:

purpose: the aim of the study was to determine the effect of a combination of medium chain triglycerides (caprylic, capric, caproic and lauric acids), linoleic acid (essential fatty acid), vitamins a and e and soy lecithin, through a morphometric study, on the wound healing kinetics of experimental cutaneous ulcers. methods: a total of 45 male wistar rats were used, in which a skin flap of total thickness with an area of 4 cm2 was removed. the animals were divided randomly into 3 groups of 15 rats each, control, reference and test groups, which were treated topically with 0.9% nacl, a preparation of clostebol combined with neomycin sulfate and the test formulation, respectively. the wound areas were measured by digital planimetry at days zero, 3, 7 and 12 postoperative. based on the wound area, we determined the degree of tissue repair and mean rate of repair at different time intervals. results: at day 3, an expansion of the wound area was observed in the reference group and slight contraction in the control and test groups. on the subsequent days, the healing process, according to the degree of repair, proceeded in a linear manner, such that, at day 12, the healed area reached 77.95% of the initial ulcerated region in the control group, 78.40% in the reference group and 83.49% in the test group, showing no significant differences. the overall mean rate of repair was equally similar at 12 days of treatment: 25.79 mm2/dia in the control group, 25.42 mm2/dia in the reference group and 27.38 mm2/dia in the test group. conclusion: the test preparation, applied topically on the experimentally induced cutaneous ulcers in rats, did not accelerate the process of tissue repair by secondary union.

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