Document Detail


Ultrasound-assisted skin diagnostics.
MedLine Citation:
PMID:  18189657     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The biomolecular composition of human skin, represented by a multitude of lipids, proteins, nucleic acids, and other miscellaneous molecules, is a sensitive indicator of skin's local health, as well as the body's systemic health. However, this information is not easily accessible, and consequently not used in the current diagnostic methods. To address the lack of quantitative methods for non-invasive skin diagnostics, herein, we describe the use of ultrasound to rapidly extract biological markers from skin. Specifically, we extracted several types of proteins (keratins, beta-actin, cytokines, and others), lipids (cholesterol, ceramides, fatty acids, and others), nucleic acids, small molecules (natural moisturizing factors and exogenous molecules), and microbes enabling us to create skin's unique biomolecular signature. The extracted biomolecules showed quantitative correlations with their composition in the epidermal skin. Extraction of these entities from skin using our method is convenient and reproducible, thus making it an advantageous alternative to biopsy and tape-stripping. By quantifying changes in skin's biomolecular profile, we report several specific in vivo applications of our method for assessing chemical-induced skin irritation, atopic dermatitis, and psoriasis in animal models. As a corollary to this technique, measurement of skin's drug bioavailability in rats is also demonstrated.
Authors:
Sumit Paliwal; Makoto Ogura; Samir Mitragotri
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  122     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2008-01-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2956     Citation Subset:  IM    
Affiliation:
Dept. of Chemical Eng., Univ. of California, Santa Barbara, CA 93106.
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