title: Negative pressure wound therapy accelerates rats diabetic wound by promoting agenesis.
abstract: Negative Pressure Wound Therapy (NPWT) has become widely adopted to several wound treatment over the last 15 years, including diabetic foot ulcer (DFU). Much of the existing evidence supports that NPWT increase in blood flow, reduce in edema, decrease bacterial proliferation and accelerate granulation-tissue formation. However, the accurate mechanism is not clear till now. The aim of the present study was to further elucidate the effects of NPWT on angiogenesis of diabetic wound model. As result, our data showed: 1) NPWT promoted the wound healing and blood perfusion on both diabetic and normal wound compared with control, 2) The NPWT increased wound vessel density, and the wound treated with NPWT showed well developed and more functional vessels at day 7 post operation compared with control 3) NPWT up regulated the expression of VEGF at day 3 and Ang1 at day 7 on RNA and protein level. 4) Ang2 was up regulated in diabetic rats but NPWT attenuated this affection. Our data indicated that NPWT increased vessel density and promoted the maturation of neovascular over the potential mechanism of up regulated VEGF and Ang1 and down regulated of Ang2.
authors.affiliation: Department of Burn and Cutaneous Surgery, Burn Centre of PLA, Xijing Hospital, Fourth Military Medical University Xi'an 710032, China.
authors.forename: Xiaoqiang
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Burn and Cutaneous Surgery, Burn Centre of PLA, Xijing Hospital, Fourth Military Medical University Xi'an 710032, China.
authors.forename: Jiaqi
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Burn and Cutaneous Surgery, Burn Centre of PLA, Xijing Hospital, Fourth Military Medical University Xi'an 710032, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Burn and Cutaneous Surgery, Burn Centre of PLA, Xijing Hospital, Fourth Military Medical University Xi'an 710032, China.
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Hu
authors.affiliation: Department of Burn and Cutaneous Surgery, Burn Centre of PLA, Xijing Hospital, Fourth Military Medical University Xi'an 710032, China.
authors.forename: Maolong
authors.initials: M
authors.lastname: Dong
authors.affiliation: Department of Burn and Cutaneous Surgery, Burn Centre of PLA, Xijing Hospital, Fourth Military Medical University Xi'an 710032, China.
authors.forename: Hongtao
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Burn and Cutaneous Surgery, Burn Centre of PLA, Xijing Hospital, Fourth Military Medical University Xi'an 710032, China.
authors.forename: Dahai
authors.initials: D
authors.lastname: Hu
keywords: Negative pressure wound therapy; angiogenesis; diabetic wound; wound healing