Document Detail

Quantitative cytochemistry of succinic dehydrogenase activity in rat mitochondria.
MedLine Citation:
PMID:  9870105     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To set up a computer-assisted morphometric procedure to cytochemically measure the activity of succinic dehydrogenase (SDH).
STUDY DESIGN: In rat mitochondria from Purkinje cell perikarya and frozen muscle samples, SDH activity was selectively evidenced by the copper ferrocyanide method. On the SDH-positive organelles we measured the following parameters: number of mitochondria per cubic micrometer (numeric density [Nv]), volume fraction of organelles per cubic micrometer (volume density [Vv]), average mitochondrial volume (V) and intramitochondrial area density of the SDH reaction (area of the precipitates/total mitochondrial area [R]).
RESULTS: In both fresh Purkinje cells and frozen muscle cells the positive organelles were sharply evident. By considering Vv, Nv and V altogether in a given experimental group, a reliable evaluation of the morphologic rearrangements of the cellular metabolic hardware can be obtained. Measurements of R provides information on the functional efficiency of each organelle.
CONCLUSION: Quantitation of SDH-positive mitochondria is closely associated with the amount of enzyme molecules present and active within the organelles. Thus, quantitative assessment of the copper ferrocyanide reaction contributes to the evaluation of mitochondrial metabolic competence.
P Fattoretti; C Bertoni-Freddari; U Caselli; R Paoloni; T Casoli
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Analytical and quantitative cytology and histology / the International Academy of Cytology [and] American Society of Cytology     Volume:  20     ISSN:  0884-6812     ISO Abbreviation:  Anal. Quant. Cytol. Histol.     Publication Date:  1998 Dec 
Date Detail:
Created Date:  1999-02-25     Completed Date:  1999-02-25     Revised Date:  2014-11-05    
Medline Journal Info:
Nlm Unique ID:  8506819     Medline TA:  Anal Quant Cytol Histol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  521-5     Citation Subset:  IM    
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MeSH Terms
Histocytochemistry / methods*
Image Processing, Computer-Assisted
Mitochondria / enzymology*
Mitochondria, Muscle / enzymology*
Purkinje Cells / enzymology,  ultrastructure
Rats, Wistar
Succinate Dehydrogenase / metabolism*
Reg. No./Substance:
EC Dehydrogenase

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

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