Document Detail


Acanthosis nigricans.
MedLine Citation:
PMID:  10212845     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Acanthosis nigricans is a lesion affecting localized areas of the skin in persons with obesity and/or hyperinsulinemia. Roughening of the skin correlates with histological papilomatosis and the apparent darkening is due to hyperkeratosis. Biochemical mechanisms for developing this hyperplastic lesion are unclear, but likely involve local cutaneous growth factors. Cross sectional surveys of unselected populations have demonstrated that young children have low prevalences of obesity and acanthosis nigricans, but the prevalences of both increase with increasing age until plateaus are reached after the age of ten. Nearly 40% of Native American teenagers have acanthosis nigricans, whereas about 13% of African American, 6% of Hispanic, and less than 1% of white, non-Hispanic children aged 10-19 have clinically apparent acanthosis nigricans. We conclude that the presence of this skin lesion is a clinical surrogate of laboratory-documented hyperinsulinemia. Acanthosis nigricans identifies a subgroup within an ethnic group who have the highest insulin concentration, the most severe insulin resistance, and thus the highest risk for the development of type 2 diabetes.
Authors:
C A Stuart; M S Driscoll; K F Lundquist; C R Gilkison; S Shaheb; M M Smith
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.; Review    
Journal Detail:
Title:  Journal of basic and clinical physiology and pharmacology     Volume:  9     ISSN:  0792-6855     ISO Abbreviation:  J Basic Clin Physiol Pharmacol     Publication Date:  1998  
Date Detail:
Created Date:  1999-06-30     Completed Date:  1999-06-30     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9101750     Medline TA:  J Basic Clin Physiol Pharmacol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  407-18     Citation Subset:  IM    
Affiliation:
Department of Medicine, University of Texas Medical Branch at Galveston, USA.
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MeSH Terms
Descriptor/Qualifier:
Acanthosis Nigricans / ethnology*,  etiology,  pathology
Adolescent
Adult
Animals
Child
Child, Preschool
Ethnic Groups*
Female
Humans
Hyperinsulinism / complications
Insulin / blood
Male
Mice
Obesity / complications
Grant Support
ID/Acronym/Agency:
DK33749/DK/NIDDK NIH HHS; DK47116/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
11061-68-0/Insulin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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