title: The microvasculature in cutaneous wound healing in the female red Duroc pig is similar to that in human hypertrophic scars and different from that in the female Yorkshire pig.
abstract: The female red Duroc pig has been found to be a promising model of hypertrophic scarring. The female Yorkshire pig has been demonstrated to heal in a very different manner, more resembling human normotrophic scarring. Given these observations, we studied microvessel density, an important aspect of wound healing, in human hypertrophic scars and the scars of the female Duroc and Yorkshire pigs. We studied microvessel density in uninjured skin; hypertrophic scars at 6 months or less, 7 to 12, and longer than 12 months; female Duroc tissues at 3 weeks and 3 and 5 months; and similar Yorkshire tissue, including uninjured skin and shallow and deep wounds. Antifactor VIII-related antigen was used to mark the endothelial cells. Computed assessment of microvessel density was used to quantify the microvasculature. In human hypertrophic scars, the microvessels were increased dramatically, and microvessel density and area were significantly elevated. We found similar results in the Duroc tissues at 5 months after deep wounding. In contrast, we found far less microvasculature and, at 5 months, the values had returned to normal in the Yorkshire tissues. This quantitative study of microvessel density further validates the female Duroc pig as an animal model of hypertrophic scarring and the female Yorkshire pig as a control.
authors: Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, The Fourth-affiliated Hospital, Jinan University, Guangzhou, PR China.
authors: Youfu
authors: Y
authors: Xie
authors: Kathy Q
authors: KQ
authors: Zhu
authors: Heike
authors: H
authors: Deubner
authors: Dominic A
authors: DA
authors: Emerson
authors: Gretchen J
authors: GJ
authors: Carrougher
authors: Nicole S
authors: NS
authors: Gibran
authors: Loren H
authors: LH
authors: Engrav
mesh_terms: D000818:Animals; D017439:Cicatrix, Hypertrophic / Q000276:immunology / Q000473:pathology / Q000628:therapy*; D005169:Factor VIII / Q000276:immunology; D005260:Female; D006801:Humans; D008297:Male; D023421:Models, Animal; D012867:Skin / Q000098:blood supply*; D013552:Swine; D014945:Wound Healing
chemical_list: D005169:Factor VIII