Novel Haptoglobin Insertion/Deletion Polymorphism Is Associated with the Lipid Profile and C-Reactive Protein (CRP) Concentration
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Birgitte Wuyts
Abstract
We discovered a hitherto undescribed insertion/deletion (I/D) polymorphism of 7 base pairs in intron 4 of the HP1 allele and intron 4 and 6 of the HP2 allele. Genotyping was performed in 311 Belgian subjects. The association between serum haptoglobin (Hp) and lipid concentrations and the Hp I/D genotypes was investigated. Genotype distribution in 103 Hp 1–1 phenotypes (50.5% DD, 39.8% DI, 9.7% II) and D allele frequency (0.70) were in close agreement with the Hardy-Weinberg equilibrium. No association between Hp concentrations and the Hp I/D genotypes could be found. Apolipoprotein (apo)A2, apoB and cholesterol concentrations were slightly lower in Hp II compared to DI and DD. Low-density lipoprotein (LDL)-cholesterol and ultrasensitive C-reactive protein (CRP) concentrations and the apoA1/apoA2 ratios differed significantly between Hp D/I genotypes. We added a further component to the molecular heterogeneity of Hp by the detection of an I/D polymorphism. Studies on the Hp I/D polymorphism in various populations open perspectives for further investigation of the distribution pattern of the human Hp gene. The association of the Hp I/D polymorphism with various lipid parameters might add a further component to the complex and multifaceted lipid metabolism.
Copyright © 2002 by Walter de Gruyter GmbH & Co. KG
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Artikel in diesem Heft
- XV Latin American Congress of Clinical Biochemistry, Florianópolis, Brazil, 1–5 July 2001
- A Method to Detect the G894T Polymorphism of the NOS3 Gene. Clinical Validation in Familial Hypercholesterolemia
- Increasing the Sensitivity of Single-Strand Conformation Polymorphism Analysis of the LDLR Gene Mutations in Brazilian Patients with Familial Hypercholesterolemia
- Hormone Replacement Therapy in Postmenopausal Women and Its Effects on Plasma Lipid Levels
- The Effect of N-Acetylcysteine Supplementation upon Viral Load, CD4, CD8, Total Lymphocyte Count and Hematocrit in Individuals Undergoing Antiretroviral Treatment
- An Evaluation of Antiretroviral Therapy Associated with α-Tocopherol Supplementation in HIV-infected Patients
- Effects of Re-education in Eating Habits and Physical Activity on the Lipid Profile of Obese Teenagers
- Myeloperoxidase-mediated Protein Oxidation: Its Possible Biological Functions
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- High-dose Methylprednisolone Therapy in Multiple Sclerosis Increases Serum Uric Acid Levels
- Evaluation of Accuracy and Uncertainty of ELISA Assays for the Determination of Interleukin-4, Interleukin-5, Interferon-γ and Tumor Necrosis Factor-α
- Development of Immunoturbidimetric Assays for Fourteen Human Serum Proteins on the Hitachi 912™
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