TY - JOUR
T1 - Effects of the ultra-high-frequency electrical field radiofrequency device on mouse skin
T2 - A histologic and molecular study
AU - Kim, Miri
AU - Kim, Kyung Eun
AU - Jeong, Seo Won
AU - Hwang, Se Won
AU - Jo, Hyunmu
AU - Lee, Jahyung
AU - Cho, Daeho
AU - Park, Hyun Jeong
N1 - Publisher Copyright:
© 2016 by the American Society of Plastic Surgeons.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - Background: Radiofrequency technology is one of the most recently developed methods for noninvasive skin tightening and facial contouring, and works by generating thermal energy in the deep dermis. Although clinical improvements have been reported using radiofrequency devices, there are few histologic and molecular studies about the mechanisms of dermal collagen remodeling. The authors investigated the histologic effects of an ultra-high-frequency electrical field (40.68 MHz) radiofrequency device (Polargen) on collagen remodeling in hairless mouse skin and evaluated its relative molecular mechanism. Methods: The radiofrequency was applied to the dorsal skin of hairless mice three times per week for 2 weeks. At 21 days after initial treatment, treated skin and nontreated control skin samples were excised for semiquantitative analysis of histologic features, including collagen. The authors also checked the mRNA expression levels of collagen type 1, transforming growth factor (TGF)-β, matrix metalloproteinase-1, vascular endothelial growth factor, tumor necrosis factor-α, and interleukin-1. Results: Histologic examination revealed epidermal hyperplasia, increased collagen staining, and fat atrophy in treated skin area compared with the nontreated skin area. In addition, mRNA expression of collagen type TGF-β, and vascular endothelial growth factor in radiofrequency-treated areas was significantly increased compared with that in untreated control areas (p < 0.05, p < 0.05, and p < 0.01, respectively). Conclusions: These results suggest that the device may facilitate replacement of subcutaneous fat tissue with new collagen in association with the increased mRNA levels in TGF-β and vascular endothelial growth factor. Therefore, this device may effectively reduce adipose tissue and achieve facial contouring in addition to skin tightening.
AB - Background: Radiofrequency technology is one of the most recently developed methods for noninvasive skin tightening and facial contouring, and works by generating thermal energy in the deep dermis. Although clinical improvements have been reported using radiofrequency devices, there are few histologic and molecular studies about the mechanisms of dermal collagen remodeling. The authors investigated the histologic effects of an ultra-high-frequency electrical field (40.68 MHz) radiofrequency device (Polargen) on collagen remodeling in hairless mouse skin and evaluated its relative molecular mechanism. Methods: The radiofrequency was applied to the dorsal skin of hairless mice three times per week for 2 weeks. At 21 days after initial treatment, treated skin and nontreated control skin samples were excised for semiquantitative analysis of histologic features, including collagen. The authors also checked the mRNA expression levels of collagen type 1, transforming growth factor (TGF)-β, matrix metalloproteinase-1, vascular endothelial growth factor, tumor necrosis factor-α, and interleukin-1. Results: Histologic examination revealed epidermal hyperplasia, increased collagen staining, and fat atrophy in treated skin area compared with the nontreated skin area. In addition, mRNA expression of collagen type TGF-β, and vascular endothelial growth factor in radiofrequency-treated areas was significantly increased compared with that in untreated control areas (p < 0.05, p < 0.05, and p < 0.01, respectively). Conclusions: These results suggest that the device may facilitate replacement of subcutaneous fat tissue with new collagen in association with the increased mRNA levels in TGF-β and vascular endothelial growth factor. Therefore, this device may effectively reduce adipose tissue and achieve facial contouring in addition to skin tightening.
UR - http://www.scopus.com/inward/record.url?scp=84979730206&partnerID=8YFLogxK
U2 - 10.1097/PRS.0000000000002364
DO - 10.1097/PRS.0000000000002364
M3 - Article
C2 - 27465186
AN - SCOPUS:84979730206
SN - 0032-1052
VL - 138
SP - 248e-255e
JO - Plastic and reconstructive surgery
JF - Plastic and reconstructive surgery
IS - 2
ER -