Jouni Karppi

Summary

Affiliation: University of Kuopio
Country: Finland

Publications

  1. ncbi Simultaneous measurement of retinol, alpha-tocopherol and six carotenoids in human plasma by using an isocratic reversed-phase HPLC method
    Jouni Karppi
    Research Institute of Public Health, School of Public Health and Clinical Nutrition, University of Kuopio, P O Box 1627, FIN 70211 Kuopio, Finland
    J Chromatogr B Analyt Technol Biomed Life Sci 867:226-32. 2008
  2. ncbi Adsorption of drugs onto a pH responsive poly(N,N-dimethyl aminoethyl methacrylate) grafted anion-exchange membrane in vitro
    Jouni Karppi
    Laboratory Centre, Kuopio University Hospital, P O Box 1777, FIN 70211 Kuopio, Finland
    Int J Pharm 338:7-14. 2007
  3. ncbi Isolation of drugs from biological fluids by using pH sensitive poly(acrylic acid) grafted poly(vinylidene fluoride) polymer membrane in vitro
    Jouni Karppi
    Laboratory Centre, Kuopio University Hospital, Kuopio, Finland
    Eur J Pharm Biopharm 67:562-8. 2007
  4. ncbi Effects of astaxanthin supplementation on lipid peroxidation
    Jouni Karppi
    Research Institute of Public Health, University of Kuopio, P O Box 1627, FI 70211 Kuopio, Finland
    Int J Vitam Nutr Res 77:3-11. 2007
  5. ncbi Lycopene, lutein and beta-carotene as determinants of LDL conjugated dienes in serum
    Jouni Karppi
    Research Institute of Public Health, School of Public Health and Clinical Nutrition, University of Kuopio, P O Box 1627, FI 70211 Kuopio, Finland
    Atherosclerosis 209:565-72. 2010
  6. ncbi Suitability of Smopex-102 cation-exchange fiber for analytical purposes and drug monitoring
    J Karppi
    Laboratory Centre, Kuopio University Hospital, Finland
    Pharmazie 64:14-8. 2009
  7. ncbi Serum lycopene and the risk of cancer: the Kuopio Ischaemic Heart Disease Risk Factor (KIHD) study
    Jouni Karppi
    Research Institute of Public Health, School of Public Health and Clinical Nutrition, University of Kuopio, Kuopio, Finland
    Ann Epidemiol 19:512-8. 2009
  8. ncbi Comparison of HPLC method and commercial ELISA assay for asymmetric dimethylarginine (ADMA) determination in human serum
    Pirjo Valtonen
    Laboratory Centre, Kuopio University Hospital, P O Box 1777, FIN 70211 Kuopio, Finland
    J Chromatogr B Analyt Technol Biomed Life Sci 828:97-102. 2005
  9. ncbi Serum ?-Carotene in Relation to Risk of Prostate Cancer: The Kuopio Ischaemic Heart Disease Risk Factor Study
    Jouni Karppi
    a Department of Medicine, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
    Nutr Cancer 64:361-7. 2012

Detail Information

Publications10

  1. ncbi Simultaneous measurement of retinol, alpha-tocopherol and six carotenoids in human plasma by using an isocratic reversed-phase HPLC method
    Jouni Karppi
    Research Institute of Public Health, School of Public Health and Clinical Nutrition, University of Kuopio, P O Box 1627, FIN 70211 Kuopio, Finland
    J Chromatogr B Analyt Technol Biomed Life Sci 867:226-32. 2008
    ..The results of the comparison matched satisfactorily. The method is used routinely in our laboratory in a large population-based study...
  2. ncbi Adsorption of drugs onto a pH responsive poly(N,N-dimethyl aminoethyl methacrylate) grafted anion-exchange membrane in vitro
    Jouni Karppi
    Laboratory Centre, Kuopio University Hospital, P O Box 1777, FIN 70211 Kuopio, Finland
    Int J Pharm 338:7-14. 2007
    ....
  3. ncbi Isolation of drugs from biological fluids by using pH sensitive poly(acrylic acid) grafted poly(vinylidene fluoride) polymer membrane in vitro
    Jouni Karppi
    Laboratory Centre, Kuopio University Hospital, Kuopio, Finland
    Eur J Pharm Biopharm 67:562-8. 2007
    ..e. serum) for subsequent monitoring and evaluation...
  4. ncbi Effects of astaxanthin supplementation on lipid peroxidation
    Jouni Karppi
    Research Institute of Public Health, University of Kuopio, P O Box 1627, FI 70211 Kuopio, Finland
    Int J Vitam Nutr Res 77:3-11. 2007
    ..The present study suggests that intestinal absorption of astaxanthin delivered as capsules is adequate, and well tolerated. Supplementation with astaxanthin may decrease in vivo oxidation of fatty acids in healthy men...
  5. ncbi Lycopene, lutein and beta-carotene as determinants of LDL conjugated dienes in serum
    Jouni Karppi
    Research Institute of Public Health, School of Public Health and Clinical Nutrition, University of Kuopio, P O Box 1627, FI 70211 Kuopio, Finland
    Atherosclerosis 209:565-72. 2010
    ..Results of the present study suggest that plasma lycopene, lutein and beta-carotene are the most powerful antioxidants for explaining the content of in vivo oxidatively modified LDL in serum...
  6. ncbi Suitability of Smopex-102 cation-exchange fiber for analytical purposes and drug monitoring
    J Karppi
    Laboratory Centre, Kuopio University Hospital, Finland
    Pharmazie 64:14-8. 2009
    ..g. serum) liquid solutions for subsequent monitoring and evaluation. However, the drug release solution and release time must be optimized more precisely in order to validate described sample preparation method for each basic drug...
  7. ncbi Serum lycopene and the risk of cancer: the Kuopio Ischaemic Heart Disease Risk Factor (KIHD) study
    Jouni Karppi
    Research Institute of Public Health, School of Public Health and Clinical Nutrition, University of Kuopio, Kuopio, Finland
    Ann Epidemiol 19:512-8. 2009
    ..Lycopene is thought to decrease the risk of cancers, although previous epidemiologic studies have produced inconsistent results. The aim of the present study was to evaluate the protective effect of lycopene against the risk of cancer...
  8. ncbi Comparison of HPLC method and commercial ELISA assay for asymmetric dimethylarginine (ADMA) determination in human serum
    Pirjo Valtonen
    Laboratory Centre, Kuopio University Hospital, P O Box 1777, FIN 70211 Kuopio, Finland
    J Chromatogr B Analyt Technol Biomed Life Sci 828:97-102. 2005
    ..ADMA concentration was stable after four freezing and thawing cycles. Overall, the HPLC method offered better sensitivity, selectivity and, very importantly, simultaneous determination of ADMA, SDMA, l-homoarginine and l-arginine...
  9. ncbi Serum ?-Carotene in Relation to Risk of Prostate Cancer: The Kuopio Ischaemic Heart Disease Risk Factor Study
    Jouni Karppi
    a Department of Medicine, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
    Nutr Cancer 64:361-7. 2012
    ..29, 95% CI: 1.12-4.66; P = 0.023). ?-Tocopherol and retinol were not associated with prostate cancer. This prospective study suggests that high-serum ?-carotene concentrations may increase the risk of prostate cancer in middle-aged men...