Macular pigment optical density is related to blood glutathione levels in healthy individuals


Purpose. To assess the relationship between macular pigment optical density (MPOD) and blood markers for antioxidant defense in otherwise healthy volunteers. Methods. Forty-seven healthy volunteers were subjected to blood analysis to detect the level of circulating glutathione in its reduced (GSH) and oxidized (GSSG) forms. The level of MPOD was measured using heterochromatic flicker photometry. Systemic blood pressure (BP) parameters, heart rate (HR), body mass index (BMI), and plasma levels of total, HDL, and LDL cholesterol and triglycerides (TGs) were also determined. Results. A simple correlation model revealed that the level of MPOD correlated significantly and positively with both GSH (P < 0.001) and t-GSH (P < 0.001) levels but not with those of GSSG (P > 0.05). Age, sex, systemic BP parameters, HR, BMI, and plasma levels of cholesterol and TGs did not have any influence on either MPOD or glutathione levels (all P > 0.05). In addition, a forward stepwise multiple regression analysis showed MPOD to have a significantly and independent correlation with GSH levels (ß = 0.63; P < 0.001). Conclusions. In otherwise healthy older individuals, there is a positive correlation between local and systemic antioxidant defense mechanisms.

Publication DOI:
Divisions: College of Health & Life Sciences > School of Optometry > Optometry
College of Health & Life Sciences > School of Optometry > Optometry & Vision Science Research Group (OVSRG)
College of Health & Life Sciences
College of Health & Life Sciences > School of Optometry > Vision, Hearing and Language
College of Health & Life Sciences > Chronic and Communicable Conditions
College of Health & Life Sciences > Clinical and Systems Neuroscience
Additional Information: Creative Commons Attribution Non-Commercial No Derivatives License. Copyright 2011 The Association for Research in Vision and Ophthalmology, Inc.
Uncontrolled Keywords: macular pigment optical density,MPOD,blood markers,antioxidant defense,antioxidant defense mechanisms,Medicine(all),Ophthalmology,Cellular and Molecular Neuroscience,Sensory Systems
Publication ISSN: 1552-5783
Last Modified: 13 Mar 2024 08:10
Date Deposited: 19 Aug 2019 08:52
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://www.iovs ... 9/5029.abstract (Publisher URL)
PURE Output Type: Article
Published Date: 2011-08-23
Authors: Qin, Lu
Bartlett, Hannah E. (ORCID Profile 0000-0002-7531-6902)
Griffiths, Helen R. (ORCID Profile 0000-0002-2666-2147)
Eperjesi, Frank (ORCID Profile 0000-0003-4358-0095)
Armstrong, Richard A. (ORCID Profile 0000-0002-5046-3199)
Gherghel, Doina (ORCID Profile 0000-0001-9439-5573)

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