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Non-healing wounds are associated with high morbidity and might greatly impact a patient's well-being and economic status. For many years, scientific research has focused on developing and testing several natural and synthetic materials that enhance the rate of wound healing or eliminate healing complications. Honey has been used for thousands of years as a traditional remedy for many ailments. Recently, honey has reemerged as a promising wound care product especially for infected wounds and for wounds in diabetic patients. In addition to its proposed potent broad-spectrum antibacterial properties, honey has been claimed to promote wound healing by reducing wound hyperaemia, oedema, and exudate, and by stimulating angiogenesis, granulation tissue formation and epithelialisation. Several animal models, including large animals, dogs and cats, and different species of laboratory animals have been used to investigate the efficacy and safety of various natural and synthetic agents for wound healing enhancement. Interpreting the results obtained by these studies is, however, rather difficult and usually hampered by many limiting factors including great variation in types and origins of honey, the type of animal species used as models, the type of wounds, the number of animals, the number and type of controls, and variation in treatment protocols. In this article, we provide a comprehensive review of the most recent findings and applications of published experimental and clinical trials using honey as an agent for wound healing enhancement in different animal models.
The therapeutic effects of Sidr honey on second-intention healing of contaminated full-thickness skin wounds in dogs were investigated. Povidone-iodine was used as a standard treatment and served as a control. Healthy adult (two-to-four-year-old) mongrels, comprising six dogs and two bitches, were divided into four equal groups in order to obtain multi-aged wounds at the end of the study. Four 2cm × 2cm full-thickness skin wounds were created on both sides of the back area of each dog under general anaesthesia adhering to aseptic technique. Contaminated wounds were then divided into two treatment groups: Group 1, Sidr honey treated (right side wounds) and group 2, povidone-iodine treated (left side wounds). All wounds were evaluated grossly daily at the time of treatment application and digitally photographed once every week. Images were analysed using ImageJ software. The parameters of unhealed wound area and length of advancing epithelium were obtained. The epithelialisation areas, percentage of wound area, and wound contraction rate were then calculated. No significant differences were found between the two treatment groups in any of the parameters studied. Overall, both honey treated and iodine treated wounds healed well within the time period of the study (28 d). However, the study showed a beneficial effect of Sidr honey on second-intention healing of full thickness contaminated wounds in healthy dogs and the effect was comparable to that of Povidone iodine.
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