Document Detail


Elemental changes in guinea-pig epidermis in the hyperplastic response to irritant stimuli.
MedLine Citation:
PMID:  2437949     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A mild irritant reaction was induced by application of sodium lauryl sulphate to the skin of guinea-pigs. The response was analysed at 24 and 48 h after application using light microscopy, transmission electron microscopy and energy dispersive X-ray microanalysis (EDX). It was found that the sodium lauryl sulphate induced a hyperplastic response in the epidermis with an increased number of keratinocytes. This response was associated with significantly increased levels of intracellular sodium and chloride. The elemental changes were most marked at 24 h, whereas the number of keratinocytes was highest at 48 h. The pattern of the elemental changes and the ultrastructural alterations are compatible with initial membrane damage followed by a transient increase in proliferative activity. The present results demonstrate that EDX is a useful tool for the analysis of functional alterations in epidermal keratinocytes under pathological conditions.
Authors:
M Lindberg; T G Grundin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The British journal of dermatology     Volume:  116     ISSN:  0007-0963     ISO Abbreviation:  Br. J. Dermatol.     Publication Date:  1987 Apr 
Date Detail:
Created Date:  1987-07-13     Completed Date:  1987-07-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0004041     Medline TA:  Br J Dermatol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  477-83     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Chlorides / metabolism
Electron Probe Microanalysis
Epidermis / drug effects,  pathology*,  ultrastructure
Female
Guinea Pigs
Hyperplasia
Keratins*
Microscopy, Electron
Sodium / metabolism
Sodium Dodecyl Sulfate / pharmacology
Chemical
Reg. No./Substance:
0/Chlorides; 151-21-3/Sodium Dodecyl Sulfate; 68238-35-7/Keratins; 7440-23-5/Sodium

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


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