Development of Formulas for Estimation of Cholesterol Levels in Major Serum Lipoproteins Separated by Agarose Gel Electrophoresis
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- Vanavanan Somlak
- Division of Clinical Chemistry, Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University
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- Chaloeysup Sirirat
- Division of Clinical Chemistry, Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University
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- Kotani Kazuhiko
- Department of Clinical Laboratory Medicine, Jichi Medical University
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- Srisawasdi Pornpen
- Division of Clinical Chemistry, Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University
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Background/aim: Electrophoresis is useful for examining the lipoprotein fraction patterns. A simultaneous and cost-effective addition of cholesterol levels in each lipoprotein fraction to the lipoprotein patterns can more assist clinical decision-making. This study' aim was to develop the formulas for estimating the fractionated lipoproteins cholesterol levels in a recent system, the agarose gel Sebia HYDRAGEL LIPO+Lp(a) electrophoresis. Methods: Serum samples were analyzed by two Sebia electrophoresis, HYDRAGEL LIPO+Lp(a) and the quantitative HYDRAGEL LDL/HDL-CHOL Direct methods. The formulas for estimation of relative cholesterol (%) of individual lipoprotein fractions were developed using linear regression models. Thereafter, the calculated lipoproteins cholesterol values by multiplying the relative cholesterol with total cholesterol concentrations were compared with the standardized enzymatic assayed values. Results: The equations for calculating % relative cholesterol (y) from % relative lipoprotein (x) were y=x-8, x+21 and 0.75x-6.5 for high-density lipoprotein (HDL), low-density lipoprotein (LDL) and very low-density lipoprotein (VLDL) fractions, respectively. Regression statistics obtained between the calculated assays (y) and the standardized enzymatic assays (x') in samples with and without Lp(a) were y=1.07x'- 0.18 and 1.06x'-0.06, respectively for HDL-cholesterol, y=0.90x'+0.32 and 0.92x'+0.29 for LDL-cholesterol, and y=0.85x'-0.03 and 0.95x'+0.02 for VLDL-cholesterol. Conclusions: The proposed formulas can provide a reliable estimation of cholesterol levels in each major lipoprotein fraction by the HYDRAGEL LIPO+Lp(a) electrophoresis. Further studies with its application are needed.<br>
収録刊行物
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- Journal of Electrophoresis
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Journal of Electrophoresis 55 (1), 23-29, 2011
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詳細情報 詳細情報について
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- CRID
- 1390001205229411200
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- NII論文ID
- 130000792159
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- ISSN
- 13499408
- 13499394
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可