Document Detail

Erythrocyte fragility is not altered in stable chronic obstructive pulmonary disease with normal arterial pH.
MedLine Citation:
PMID:  12652016     Owner:  NLM     Status:  MEDLINE    
The aim of this study is to investigate if erythrocyte fragility is altered in chronic obstructive pulmonary disease (COPD) due to oxidative stress. Fasting blood samples were collected into both plain tubes and tubes with K(3) EDTA and analyzed in two hours for hematologic indexes and erythrocyte osmotic fragility (EOF). Malondialdehyde (MDA) concentrations in serum were detected in terms of TBARS (thiobarbituric acid reactive substances), spectrophotometrically. Thirty-nine clinically stable male COPD patients with mean age 67+/-8 were prospectively studied. The control subjects consisted of healthy males with mean age 64+/-12. Pulmonary function tests of COPD patients revealed severe airway obstruction whereas they were normal for control group. Normal pH with mild hypoxemia and hypercapnia were detected in arterial blood gas analyses. Hemoglobin, haematocrit and mean corpuscular volume values of two groups were similar. Mean serum MDA concentration was 1.09+/-0.11 micromol/l in COPD patients and 0.95+/-0.06 micromol/l in the control group (p=0.336). EOF was 33.06+/-1.24% in COPD group and 33.17+/-1.55% in controls (p=0.453). There was no correlation between EOF and MDA concentrations of COPD patients (r=-0.18, p=0.924). EOF and MDA did not correlate with severity of COPD (p>0.05). We conclude that markers of oxidative stress are not increased and erythrocyte osmotic fragility is not altered in stable COPD patients with normal arterial pH.
Aslihan B Karul; Fisun Karadag; Didem Kozaci; Cagatay Altun
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical hemorheology and microcirculation     Volume:  28     ISSN:  1386-0291     ISO Abbreviation:  Clin. Hemorheol. Microcirc.     Publication Date:  2003  
Date Detail:
Created Date:  2003-03-24     Completed Date:  2004-02-20     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  9709206     Medline TA:  Clin Hemorheol Microcirc     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  107-12     Citation Subset:  IM    
Department of Biochemistry, School of Medicine, Adnan Menderes University, Aydin, Turkey.
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MeSH Terms
Aged, 80 and over
Blood Gas Analysis
Case-Control Studies
Hematologic Tests
Hydrogen-Ion Concentration
Middle Aged
Osmotic Fragility*
Oxidative Stress
Prospective Studies
Pulmonary Artery
Pulmonary Disease, Chronic Obstructive / blood*
Respiratory Function Tests

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