Document Detail


Methodological assessment of acid-etching for visualizing the osteocyte lacunar-canalicular networks using scanning electron microscopy.
MedLine Citation:
PMID:  19725069     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Osteocytes are the most abundant of the bone cells. Each osteocyte is contained within its own lacuna and connected to adjacent osteocytes via fillipodial processes, which form an intricate network of canaliculi within the matrix. Studying this intricate network of cells and their processes is difficult, because it exists embedded within a densely mineralized matrix. Scanning electron microscopy (SEM) has been shown to be a useful tool for visualizing this cellular network, yet the techniques involved for preparing specimens has not been systematically explored. The goal of this study was to investigate how variations in acid-etching, both etching media and etching duration, affect SEM-based visualization of the osteocyte lacunar-canalicular network. Bone samples were embedded in plastic and then acid etched in either 9% (10, 20, 40, and 60 s durations) or 37% (5, 10, and 15 s) phosphoric acid. Specimens were imaged using SEM, and qualitative evaluation of the lacunar-canalicular network was undertaken. Our findings show acid etchingwith a 9% phosphoric acid solution for 20 s provided the most favorable visualization of the osteocyte lacunar-canalicular network.
Authors:
Daniel J Kubek; Vincent H Gattone; Matthew R Allen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Microscopy research and technique     Volume:  73     ISSN:  1097-0029     ISO Abbreviation:  Microsc. Res. Tech.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-02-01     Completed Date:  2010-03-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9203012     Medline TA:  Microsc Res Tech     Country:  United States    
Other Details:
Languages:  eng     Pagination:  182-6     Citation Subset:  IM    
Affiliation:
Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Bone and Bones / cytology*,  ultrastructure*
Dental Materials / pharmacology
Dogs
Female
Histological Techniques / methods*
Microscopy, Electron, Scanning
Osteocytes / ultrastructure*
Phosphoric Acids / pharmacology
Specimen Handling / methods*
Chemical
Reg. No./Substance:
0/Dental Materials; 0/Phosphoric Acids; 7664-38-2/phosphoric acid

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


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