Detection of Hpdel in healthy individuals and cancer patients in Taiwan
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Yu-Chieh Su
Abstract
Background: We investigated the genotypic distribution of Hpdel in healthy subjects and cancer patients in Taiwan.
Methods: Blood samples were collected from 244 randomly selected healthy Taiwanese volunteers and 737 patients with various cancers. Samples were analyzed for the haptoglobin (Hp) gene, and the presence of the Hpdel allele was determined from genomic DNA by an Hpdel-specific polymerase chain reaction (PCR) method. The plasma concentration of Hp was also determined.
Results: The frequency of the Hpdel allele was calculated to be 0.029, and was not different between the healthy subjects and patients with cancer. The prevalence of Hp deficiency caused by Hpdel homozygosity was estimated to be ∼0.85 in 1000. Fifty-seven subjects were reclassified from homozygous Hp1 or Hp2 to Hp1/Hpdel or Hp2/Hpdel genotypes. The Hpdel allele is not associated with prevalence, severity or stage of any cancer.
Conclusions: Congenital Hp deficiency caused by Hpdel homozygosity is a condition present in Taiwan with a relatively high frequency. However, the Hpdel variant does not play a role in cancer.
Clin Chem Lab Med 2009;47:745–9.
©2009 by Walter de Gruyter Berlin New York
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Articles in the same Issue
- Editorial
- A focus on recent advances in proteomics – one step closer to entrance into the clinical arena
- Reviews
- Proteomics in protein misfolding diseases
- Multidimensional protein identification technology for clinical proteomic analysis
- Technical advances in proteomics mass spectrometry: identification of post-translational modifications
- Mass spectrometry based proteomics profiling as diagnostic tool in oncology: current status and future perspective
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- Influence of sample storage duration on serum protein profiles assessed by surface-enhanced laser desorption/ionisation time-of-flight mass spectrometry (SELDI-TOF MS)
- Proteomics of exhaled breath: methodological nuances and pitfalls
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- Influence of tourniquet application on venous blood sampling for serum chemistry, hematological parameters, leukocyte activation and erythrocyte mechanical properties
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- Letters to the Editor
- CACNA1A gene non-synonymous single nucleotide polymorphisms and common migraine in Italy: a case-control association study with a micro-array technology
- Proficiency test of plasma free and total metanephrines: report from a study group
