Dietary Nitrate Intake Is Associated with Decreased Incidence of Open-Angle Glaucoma: The Rotterdam Study
Previous studies suggest that nitric oxide is involved in the regulation of the intraocular pressure (IOP) and in the pathophysiology of open-angle glaucoma (OAG). However, prospective studies investigating the association between dietary nitrate intake, a source of nitric oxide, and incident (i)OAG...
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MDPI AG
2022-06-01
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author | Joëlle E. Vergroesen Tosca O. E. de Crom Lauren C. Blekkenhorst Caroline C. W. Klaver Trudy Voortman Wishal D. Ramdas |
author_facet | Joëlle E. Vergroesen Tosca O. E. de Crom Lauren C. Blekkenhorst Caroline C. W. Klaver Trudy Voortman Wishal D. Ramdas |
author_sort | Joëlle E. Vergroesen |
collection | DOAJ |
description | Previous studies suggest that nitric oxide is involved in the regulation of the intraocular pressure (IOP) and in the pathophysiology of open-angle glaucoma (OAG). However, prospective studies investigating the association between dietary nitrate intake, a source of nitric oxide, and incident (i)OAG risk are limited. We aimed to determine the association between dietary nitrate intake and iOAG, and to evaluate the association between dietary nitrate intake and IOP. From 1991 onwards, participants were followed each five years for iOAG in the Rotterdam Study. A total of 173 participants developed iOAG during follow-up. Cases and controls were matched on age (mean ± standard deviation: 65.7 ± 6.9) and sex (%female: 53.2) in a case:control ratio of 1:5. After adjustment for potential confounders, total dietary nitrate intake was associated with a lower iOAG risk (odds ratio (OR) with corresponding 95% confidence interval (95% CI): 0.95 (0.91–0.98) for each 10 mg/day higher intake). Both nitrate intake from vegetables (OR (95% CI): 0.95 (0.91–0.98) for each 10 mg/day higher intake) and nitrate intake from non-vegetable food sources (OR (95% CI): 0.63 (0.41–0.96) for each 10 mg/day higher intake) were associated with a lower iOAG risk. Dietary nitrate intake was not associated with IOP. In conclusion, dietary nitrate intake was associated with a reduced risk of iOAG. IOP-independent mechanisms may underlie the association with OAG. |
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publishDate | 2022-06-01 |
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series | Nutrients |
spelling | doaj.art-933dd4169552460591c114509fb747f62023-11-23T18:22:04ZengMDPI AGNutrients2072-66432022-06-011412249010.3390/nu14122490Dietary Nitrate Intake Is Associated with Decreased Incidence of Open-Angle Glaucoma: The Rotterdam StudyJoëlle E. Vergroesen0Tosca O. E. de Crom1Lauren C. Blekkenhorst2Caroline C. W. Klaver3Trudy Voortman4Wishal D. Ramdas5Department of Ophthalmology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The NetherlandsDepartment of Epidemiology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The NetherlandsSchool of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, AustraliaDepartment of Ophthalmology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The NetherlandsDepartment of Epidemiology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The NetherlandsDepartment of Ophthalmology, Erasmus MC University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The NetherlandsPrevious studies suggest that nitric oxide is involved in the regulation of the intraocular pressure (IOP) and in the pathophysiology of open-angle glaucoma (OAG). However, prospective studies investigating the association between dietary nitrate intake, a source of nitric oxide, and incident (i)OAG risk are limited. We aimed to determine the association between dietary nitrate intake and iOAG, and to evaluate the association between dietary nitrate intake and IOP. From 1991 onwards, participants were followed each five years for iOAG in the Rotterdam Study. A total of 173 participants developed iOAG during follow-up. Cases and controls were matched on age (mean ± standard deviation: 65.7 ± 6.9) and sex (%female: 53.2) in a case:control ratio of 1:5. After adjustment for potential confounders, total dietary nitrate intake was associated with a lower iOAG risk (odds ratio (OR) with corresponding 95% confidence interval (95% CI): 0.95 (0.91–0.98) for each 10 mg/day higher intake). Both nitrate intake from vegetables (OR (95% CI): 0.95 (0.91–0.98) for each 10 mg/day higher intake) and nitrate intake from non-vegetable food sources (OR (95% CI): 0.63 (0.41–0.96) for each 10 mg/day higher intake) were associated with a lower iOAG risk. Dietary nitrate intake was not associated with IOP. In conclusion, dietary nitrate intake was associated with a reduced risk of iOAG. IOP-independent mechanisms may underlie the association with OAG.https://www.mdpi.com/2072-6643/14/12/2490open-angle glaucomaintraocular pressuredietary nitrategreen-leafy vegetables |
spellingShingle | Joëlle E. Vergroesen Tosca O. E. de Crom Lauren C. Blekkenhorst Caroline C. W. Klaver Trudy Voortman Wishal D. Ramdas Dietary Nitrate Intake Is Associated with Decreased Incidence of Open-Angle Glaucoma: The Rotterdam Study Nutrients open-angle glaucoma intraocular pressure dietary nitrate green-leafy vegetables |
title | Dietary Nitrate Intake Is Associated with Decreased Incidence of Open-Angle Glaucoma: The Rotterdam Study |
title_full | Dietary Nitrate Intake Is Associated with Decreased Incidence of Open-Angle Glaucoma: The Rotterdam Study |
title_fullStr | Dietary Nitrate Intake Is Associated with Decreased Incidence of Open-Angle Glaucoma: The Rotterdam Study |
title_full_unstemmed | Dietary Nitrate Intake Is Associated with Decreased Incidence of Open-Angle Glaucoma: The Rotterdam Study |
title_short | Dietary Nitrate Intake Is Associated with Decreased Incidence of Open-Angle Glaucoma: The Rotterdam Study |
title_sort | dietary nitrate intake is associated with decreased incidence of open angle glaucoma the rotterdam study |
topic | open-angle glaucoma intraocular pressure dietary nitrate green-leafy vegetables |
url | https://www.mdpi.com/2072-6643/14/12/2490 |
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