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1.
Dermatol Ther ; 33(3): e13362, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32239616

RESUMO

In this study, the application of a recently introduced device based on electromagnetic energy transfer by microwaves for fat reduction, permitted to study specifically the modifications of thick fibrous collagen interlobular septa in the subcutaneous adipose tissue, related to the formation of large clusters of adipocytes. The use of Picrosirius red staining associated with circularly polarized microscopy gave evidence of appreciable modifications of the fibrous connective tissue forming septa. Compact fibrotic bundles of collagen I forming interlobular septa appeared reduced or dissolved, in part substituted by the increase of more diffuse and finely reticular collagen III. Remodeling of fibrous collagen, which formed bridles involved in the appearance at the surface of the skin of dimpling/orange peer pattern typical of cellulite, was observed.


Assuntos
Celulite , Micro-Ondas , Colágeno , Humanos , Pele , Gordura Subcutânea
2.
Dermatol Ther ; 33(3): e13405, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32314855

RESUMO

Recently, it has been shown that DNA could emit some waves which carry main information about its evolution. Using this idea, we design a new method to image the behavior of skin cells, especially melanocytes, and diagnose their damage. In this method, we make use of a circuit which is formed from DNAs within the damaged melanocytes, a graphene sheet, DNAs within the healthy cells, and a scope. To amplify exchanged waves between hexagonal and pentagonal manifolds of DNAs, we induce some defects in the graphene sheets and replace some hexagonal molecules by pentagonal ones to build a structure similar to the structure of DNAs. We show that unprotected exposure to UVA and UVB damages the DNA in melanocyte cells, producing genetic defects, or mutations, that can lead to exchanged waves between cells and the emergence of a current in our circuit. By analyzing the evolution of this current, we can estimate the rate of destruction in melanocytes, and predict the emergence of cancer.


Assuntos
Melanócitos , Raios Ultravioleta , Diagnóstico por Imagem , Pele , Raios Ultravioleta/efeitos adversos
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