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Τετάρτη 30 Ιανουαρίου 2019

Topical Oxandrolone Reduces Ear Hypertrophic Scar Formation in Rabbits

Oxandrolone, sold under the brand names Oxandrin and Anavar, among others, is an androgen and anabolic steroid (AAS) medication which is used to help ...
Drug class‎: ‎Androgen‎; ‎Anabolic steroid
Protein binding‎: ‎94–97%
Metabolism‎: ‎Kidneys‎ (primarily), ‎liver
Excretion‎: ‎Urine‎: 28% (unchanged); ‎Feces‎: 3%
Medical uses · ‎Side effects · ‎Pharmacology · ‎Society and culture



Topical Oxandrolone Reduces Ear Hypertrophic Scar Formation in Rabbits: imageBackground:

Wound healing is a complex process. Despite extensive studies, hypertrophic and keloid scars still occur, and can be functionally and cosmetically problematic. In an attempt to prevent hypertrophic scar formation, the effects of topical oxandrolone, using hyaluronic acid as a biomaterial, were studied on ear wounds in rabbits.

Methods:

Deep second-degree burns were inflicted on each ear in 10 New Zealand rabbits. On the left ears, considered the control side, hyaluronic acid gel was applied, whereas on the right ears, the study side, a combination of oxandrolone and hyaluronic acid was applied. Dressings were changed every 2 days for 2 weeks. At week 10, biopsy specimens from the postburn scars were harvested for histologic and immunohistochemical examinations.

Results:

Fourteen wounds were studied, half on the control side and half on the study side. Six hypertrophic scars were encountered on the control side and only one scar was encountered on the study side. In addition, an increased degree of inflammation, an increased amount of collagen and fibroblast cellularity, increased vascularization, and increased myofibroblast activity were observed on the control side.

Conclusion:

Topical administration of oxandrolone using hyaluronic acid as a biomaterial led to better healing and prevented hypertrophic scar formation.


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