Non-ablative skin rejuvenation using Nd: YAG laser and intense pulsed light / 中华医学美学美容杂志
Chinese Journal of Medical Aesthetics and Cosmetology
;
(6): 336-339, 2009.
Artigo
em Chinês
| WPRIM
| ID: wpr-380504
ABSTRACT
Objective To observe the histological change of different waves in treating SD rats of the long-pulse 1064nm NdYAG laser and the 560~1200 nm intense pulse light,in order to provide the theory bases of non-ablative rejuvenation.Methods Two waves were used on experimental mice.The dermic thickness and the expression of collagen typesⅠand Ⅲwere detected by HE stain and immunohistochemical methods. Semiquantitative analysis was used to determine the mean of absorbance.Results Thedermal thicknesses and the mean of absorbance of collagen typesⅠandⅢin two different waves were higher than those in common control groups(P<0.05).The effect of NdYAG laser groups were higher than IPL groups(P<0.05).The expression of collagen typeⅠwas higher than that of collagen type Ⅲ(P<0.001).Conclusion After NdYAG laser or IPL irradiation,the dermal thickness and collagen typesⅠandⅢof SD rats are increased.The effects of NdYAG laser are better than those of 560~1 200 nm IPL.The expression of collagen type Ⅲ is obviously more than that of collagen typeⅠin the early,whereas the expression of collagen typeⅠis obviously more than that of collagen type Ⅲin the later.It proves that the mechanism of dermal remodeling of non-ablative skin rejuvenation is mainly correlation with raising range and time of collagen typeⅠ.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Medical Aesthetics and Cosmetology
Ano de publicação:
2009
Tipo de documento:
Artigo
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