Document Detail


Correlation between serum prostate-specific antigen and alpha-1-antitrypsin in men without and with prostate cancer.
MedLine Citation:
PMID:  16581345     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Prostate specific antigen (PSA) is frequently used for prostate cancer (PCa) screening, but serum levels are also increased by prostate inflammation. Elevations in serum levels of alpha1-antitrypsin (ATT), a marker of inflammation, in cancer patients are well documented. However, an association between PSA and ATT has never been investigated. The authors, therefore, measured serum acute phase proteins (APPs) ATT, alpha1-acid glycoprotein, C-reactive protein, and alpha1-antichymotrypsin in 174 men without and 34 with newly diagnosed untreated PCa (38-80 years old). As expected, men with PCa had higher mean PSA levels than those without PCa (P < 0.00001). Men with PCa and those without PCa but with PSA >2 ng/mL (n = 68) had significantly higher ATT concentrations than those without these conditions (n = 106) (mean +/- SEM g/L): 1.94+/-0.083, 1.92+/-0.066, 1.25+/-0.043, respectively; p <0.005). Interestingly, African-American men without PCa (n=111) had higher ATT levels than Caucasian men (n=63) (1.565+/-0.045 g/l versus 1.395+/-0.056 g/l; p <0.005); and differences persisted in men with PSA >2 ng/ml (2.094+/-0.07 g/l versus 1.593 for all0.095 g/l; p<0.0002). There were no differences among groups in the levels of other APP. ATT showed the strongest correlation with PSA (r = 0.346 to 0.395; p <0.001) than any other APP (r < or =0.245). Our data suggest that men with PCa have higher ATT levels than those without PCa; and African-American men without PCa have higher ATT levels than Caucasian men. The possible implications of elevated ATT levels in African-American men on the risk of PCa are discussed.
Authors:
Solo Kuvibidila; Walter Rayford
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of laboratory and clinical medicine     Volume:  147     ISSN:  0022-2143     ISO Abbreviation:  J. Lab. Clin. Med.     Publication Date:  2006 Apr 
Date Detail:
Created Date:  2006-04-03     Completed Date:  2006-05-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375375     Medline TA:  J Lab Clin Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  174-81     Citation Subset:  AIM; IM    
Affiliation:
Department of Pediatrics and the Department of Urology, Louisiana State University Health Sciences Center, New Orleans, Louisiana 70112, USA. skuvib@lsuhsc.edu
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MeSH Terms
Descriptor/Qualifier:
Acute-Phase Proteins / metabolism
Adult
African Americans
Aged
Aged, 80 and over
Case-Control Studies
European Continental Ancestry Group
Humans
Inflammation Mediators / blood
Male
Middle Aged
Prostate-Specific Antigen / blood*
Prostatic Neoplasms / blood*
Risk Factors
Tumor Markers, Biological / blood
alpha 1-Antitrypsin / metabolism*
Chemical
Reg. No./Substance:
0/Acute-Phase Proteins; 0/Inflammation Mediators; 0/Tumor Markers, Biological; 0/alpha 1-Antitrypsin; EC 3.4.21.77/Prostate-Specific Antigen

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


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