W. Schalch

Most-cited papers

1. The singlet oxygen and carotenoid interaction.

   P. Conn, W. Schalch, T. Truscott

   1991Journal of Photochemistry and Photobiology. B: Biology370 citations

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2. Plasma lutein and zeaxanthin and other carotenoids as modifiable risk factors for age-related maculopathy and cataract: the POLA Study.

   C. Delcourt, I. Carrière, M. Delage, P. Barberger-Gateau +1 more

   2006Investigative Ophthalmology and Visual Science273 citations Open access

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3. Relationship between Serum and Brain Carotenoids, α-Tocopherol, and Retinol Concentrations and Cognitive Performance in the Oldest Old from the Georgia Centenarian Study

   Elizabeth J. Johnson, R. Vishwanathan, Mary Ann Johnson, D. B. Hausman +11 more

   2013Journal of Aging Research265 citations Open access

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4. Nutritional manipulation of primate retinas, III: Effects of lutein or zeaxanthin supplementation on adipose tissue and retina of xanthophyll-free monkeys.

   Elizabeth J. Johnson, M. Neuringer, Robert M. Russell, W. Schalch +1 more

   2005Investigative Ophthalmology and Visual Science198 citations Open access

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5. The Roche European American Cataract Trial (REACT): A randomized clinical trial to investigate the efficacy of an oral antioxidant micronutrient mixture to slow progression of age-related cataract

   L. Chylack, N. Brown, A. Bron, M. Hurst +3 more

   2002Ophthalmic Epidemiology197 citations

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6. Nutritional manipulation of primate retinas, V: effects of lutein, zeaxanthin, and n-3 fatty acids on retinal sensitivity to blue-light-induced damage.

   F. M. Barker, D. Snodderly, E. Johnson, W. Schalch +3 more

   2011Investigative Ophthalmology and Visual Science194 citations Open access

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7. Vitamin C and human health--a review of recent data relevant to human requirements.

   P. Weber, A. Bendich, W. Schalch

   1996International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition165 citations

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8. Macular lutein and zeaxanthin are related to brain lutein and zeaxanthin in primates

   R. Vishwanathan, M. Neuringer, D. Snodderly, W. Schalch +1 more

   2012Nutritional neuroscience162 citations Open access

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9. Xanthophyll accumulation in the human retina during supplementation with lutein or zeaxanthin - the LUXEA (LUtein Xanthophyll Eye Accumulation) study.

   W. Schalch, W. Cohn, F. M. Barker, W. Köpcke +5 more

   2007Archives of Biochemistry and Biophysics152 citations

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10. Supplementation with the carotenoids lutein or zeaxanthin improves human visual performance

    J. Kvansakul, M. Rodriguez-Carmona, D. Edgar, F. M. Barker +3 more

    2006Ophthalmic & physiological optics149 citations

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11. Carotenoids in the retina--a review of their possible role in preventing or limiting damage caused by light and oxygen.

    W. Schalch

    1992EXS146 citations

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12. Macular pigment optical density is related to cognitive function in older people.

    R. Vishwanathan, A. Iannaccone, T. Scott, S. Kritchevsky +10 more

    2014Age and Ageing131 citations Open access

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13. A double-blind, placebo-controlled study on the effects of lutein and zeaxanthin on photostress recovery, glare disability, and chromatic contrast.

    B. Hammond, Laura M. Fletcher, F. Roos, J. Wittwer +1 more

    2014Investigative Ophthalmology and Visual Science123 citations Open access

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14. Dietary carotenoids protect human cells from damage.

    J. Tinkler, F. Böhm, W. Schalch, T. Truscott

    1994Journal of Photochemistry and Photobiology. B: Biology123 citations

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15. Fat-soluble nutrient concentrations in different layers of human cataractous lens.

    K. Yeum, F. Shang, W. Schalch, Robert M. Russell +1 more

    1999Current Eye Research116 citations

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16. Interactions between Carotenoids and the CCl3O2.bul. Radical

    T. Hill, E. Land, D. McGarvey, W. Schalch +2 more

    1995116 citations

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17. Effects of antioxidant supplementation on platelet function: a randomized pair-matched, placebo-controlled, double-blind trial in men with low antioxidant status.

    J. T. Salonen, R. Salonen, K. Seppänen, S. Rinta-Kiikka +5 more

    1991American Journal of Clinical Nutrition109 citations Open access

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18. Macular pigment carotenoids in the retina and occipital cortex are related in humans

    R. Vishwanathan, W. Schalch, Elizabeth J. Johnson

    2016Nutritional neuroscience95 citations

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19. The effects of supplementation with lutein and/or zeaxanthin on human macular pigment density and colour vision

    M. Rodriguez-Carmona, J. Kvansakul, J. Harlow, W. Köpcke +2 more

    2006Ophthalmic & physiological optics94 citations

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20. Carotene-oxygen radical interactions.

    P. Conn, C. Lambert, Edward J. Land, W. Schalch +1 more

    1992Free Radical Research Communications89 citations

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21. Plasma kinetics of zeaxanthin and 3'-dehydro-lutein after multiple oral doses of synthetic zeaxanthin.

    D. Hartmann, P. Thürmann, V. Spitzer, W. Schalch +2 more

    2004American Journal of Clinical Nutrition85 citations Open access

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22. Plasma Carotenoids Are Inversely Associated With Dementia Risk in an Elderly French Cohort.

    C. Féart, L. Letenneur, C. Helmer, C. Samieri +5 more

    2016The journals of gerontology. Series A, Biological sciences and medical sciences75 citations

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23. Gastric delivery system for iron supplementation.

    J. D. Cook, M. Carriaga, B. S. Skikne, S. G. Kahn +1 more

    1990The Lancet72 citations

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24. Comparative multiple dose plasma kinetics of lycopene administered in tomato juice, tomato soup or lycopene tablets

    W. Cohn, P. Thürmann, U. Tenter, C. Aebischer +2 more

    2004European Journal of Nutrition51 citations

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25. Serum Lutein Response Is Greater from Free Lutein Than from Esterified Lutein during 4 Weeks of Supplementation in Healthy Adults

    E. Norkus, Katherine L Norkus, T. Dharmarajan, J. Schierle +1 more

    2010Journal of the American College of Nutrition49 citations

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26. Plasma kinetics of lutein, zeaxanthin, and 3-dehydro-lutein after multiple oral doses of a lutein supplement.

    P. Thürmann, W. Schalch, J. Aebischer, U. Tenter +1 more

    2005American Journal of Clinical Nutrition47 citations Open access

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27. Plasma concentration response to drinks containing β-carotene as carrot juice or formulated as a water dispersible powder

    P. Thürmann, Joachim Steffen, C. Zwernemann, C. Aebischer +3 more

    2002European Journal of Nutrition46 citations

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28. Association of macular pigment density with plasma ω-3 fatty acids: the PIMAVOSA study.

    M. Delyfer, Benjamin Buaud, J. Korobelnik, M. Rougier +9 more

    2012Investigative Ophthalmology and Visual Science43 citations

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29. Pharmacokinetics and tissue distribution of orally administered lycopene in male dogs.

    P. Korytko, K. Rodvold, J. Crowell, M. Stacewicz-Sapuntzakis +4 more

    2003Journal of NutriLife39 citations Open access

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30. Effects of formulation on the bioavailability of lutein and zeaxanthin: a randomized, double-blind, cross-over, comparative, single-dose study in healthy subjects

    M. Evans, Mareike Beck, James G. Elliott, S. Etheve +2 more

    2012European Journal of Nutrition38 citations Open access

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31. Workshop on Functional Significance of Mild-to-Moderate Malnutrition

    R. Buzina, C. J. Bates, J. VanDerBeek, G. Brubacher +12 more

    198938 citations

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32. Effects of pyridoxine and riboflavin supplementation on physical fitness in young adolescents.

    K. Subotičanec, A. Stavljenić, W. Schalch, R. Buzina

    1990International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition33 citations

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33. Plasma kinetics of lutein, zeaxanthin, and 3-dehydro-lutein after multiple oral doses of a lutein supplement

    P. Thürmann, W. Schalch, J. Aebischer, U. Tenter +1 more

    200532 citations Open access

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34. Metabolism of lutein and zeaxanthin in rhesus monkeys: identification of (3R,6'R)- and (3R,6'S)-3'-dehydro-lutein as common metabolites and comparison to humans.

    G. I. Albert, Ulrich Hoeller, J. Schierle, M. Neuringer +2 more

    2008Comparative Biochemistry and Physiology Part B Comparative Biochemistry26 citations Open access

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35. Plasma Lutein, a Nutritional Biomarker for Development of Advanced Age-Related Macular Degeneration: The Alienor Study

    B. Merle, A. Cougnard-Grégoire, J. Korobelnik, W. Schalch +6 more

    2021Nutrients24 citations Open access

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36. Effects of antioxidant supplementation on platelet function: A randomized pair-matched placebo-controlled double-blind trial in men with low antioxidant status

    J. Salonen, R. Salonen, K. Seppänen, H. Korpela +1 more

    199022 citations

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37. Brain levels of lutein (L) and zeaxanthin (Z) are related to cognitive function in centenarians

    Elizabeth J. Johnson, R. Vishwanathan, W. Schalch, L. Poon +10 more

    201121 citations

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38. Cellular bound β-carotene quenches singlet oxygen in man

    F. Böhm, J. Haley, T. Truscott, W. Schalch

    199318 citations

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39. The interaction of carotenoids with reactive oxy-species.

    T. Truscott, D. McGarvey, C. Lambert, T. Hill +5 more

    1995Biochemical Society Transactions17 citations

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40. Serum carotenoids as a biomarker for carotenoid concentrations in the brain

    Elizabeth J. Johnson, R. Vishwanathan, T. Scott, W. Schalch +7 more

    201113 citations

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41. Dietary Zeaxanthin or Lutein Improves Foveal Photo–protection From Blue Light in Xanthopyhll–free Monkeys

    F. M. Barker, M. Neuringer, Elizabeth J. Johnson, W. Schalch +2 more

    200510 citations

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42. [Antioxidant micronutrients and cataract. Review and comparison of the AREDS and REACT cataract studies].

    W. Schalch, L. Chylack

    2003Der Ophthalmologe10 citations

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43. Canthaxanthin Deposition in the Retina: A Biostatistical Evaluation of 411 Patients

    W. Köpcke, F. M. Barker, W. Schalch

    199510 citations

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44. Possible contribution of lutein and zeaxanthin, carotenoids of the macula lutea, to reducing the risk for age-related macular degeneration: a review

    W. Schalch

    2000Hong Kong Journal of Ophthalmology9 citations Open access

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45. Lutein (L) and zeaxanthin (Z) levels in retina are related to levels in the brain

    R. Vishwanathan, M. Neuringer, W. Schalch, Elizabeth J. Johnson

    20117 citations

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46. Changes in Macular Pigment Optical Density Following Repeated Dosing With Lutein, Zeaxanthin, or Their Combination in Healthy Volunteers – Results of the LUXEA–Study

    W. Köpcke, W. Schalch

    20057 citations

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47. Ocular and General Safety of Supplementation With Zeaxanthin and Lutein; Plasma Exposure Levels of Carotenoids and 3'–Dehydro–Lutein – Results of the LUXEA–Study

    W. Schalch, F. M. Barker

    20057 citations

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48. Assessment of visual performance in relation to macular pigment density in human vision

    J. Kvansakul, D. Edgar, J. Barbur, W. Schalch +2 more

    20046 citations

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49. Macular pigment optical density (MPOD) measurements using visual displays – a new method and first results

    W. Schalch, M. Rodriguez-Carmona, J. A. Harlow, J. Barbur +1 more

    20045 citations

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50. Chromatic Sensitivity Changes in Relation to Macular Pigment Optical Density (MPOD) in Human Vision

    M. Rodriguez-Carmona, J. Barbur, J. A. Harlow, W. Schalch +1 more

    20044 citations

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