Purpose: The purpose of this study was to describe the perceptions, recommendations, and educational or informational materials of licensed Wisconsin optometrists on lutein and zeaxanthin and eye health.
Methods: A 20-item original survey with letter of consent was mailed to 300 randomly chosen licensed optometrists followed by a reminder postcard 11 days later. A reminder to complete the survey was published in the Wisconsin Optometric Association newsletter. A total of 127 (42.3%) returned surveys were usable. The survey variables were coded, and data were entered and analyzed using SPSS version 11.5 for Windows (SPSS Inc., Chicago, Illinois).
Results: Most respondents felt moderately to very informed about the relationship between lutein and zeaxanthin and eye health. Most participants thought the information on lutein and zeaxanthin and eye health was adequate to make recommendations to patients. Most respondents recommended a lutein or zeaxanthin supplement, spinach or other foods rich in lutein and zeaxanthin, a zinc supplement, and a multi-vitamin/mineral supplement to patients with, or at risk of, age-related macular degeneration. About half of respondents who distributed educational or informational materials had materials on lutein and zeaxanthin.
Conclusions: Optometrists felt informed about lutein and zeaxanthin and eye health and recommended spinach or antioxidant supplements for age-related macular degeneration.
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http://dx.doi.org/10.1016/j.optm.2009.03.015 | DOI Listing |
Poult Sci
January 2025
University of Zagreb Faculty of Agriculture, Svetošimunska 25, 10000 Zagreb, Croatia. Electronic address:
This study investigated the effects of supplementing laying hen's diet with vitamin A (5,000, 10,000 and 20,000 IU/kg) and trace minerals (Zn, Mn, Cu, Fe and Se) in inorganic and organic form on the carotenoid content and deposition efficiency in egg yolk. Hen's diet consisted of two commercial dent corn hybrids (soft- and hard-type), which differed in their carotenoid profile. The feeding trial was conducted with 252 Lohmann Brown hens allocated in 84 cages that were randomly assigned to 12 dietary treatments (2 hybrids × 3 vitamin A levels × 2 trace mineral forms).
View Article and Find Full Text PDFPlant Physiol Biochem
January 2025
College of Land and Environment, Shenyang Agricultural University, Shenyang, 110866, China. Electronic address:
Saline-alkaline stress has caused severe ecological and environmental problems. Castor bean is a potential alkali-tolerant plant, however, its reactive oxygen species (ROS) regulatory mechanisms under alkaline stress remain unclear. This study investigated the physiological, transcriptomic, and metabolomic characteristics of two varieties (ZB8, alkaline-sensitive; JX22, alkaline-resistant) under alkaline stress.
View Article and Find Full Text PDFAntioxidants (Basel)
January 2025
Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung City 402, Taiwan.
Dry eye syndrome (DES) is a prevalent ocular condition characterized by tear film instability, inflammation, and discomfort, affecting millions worldwide. DES is related to oxidative stress imbalance and ocular surface inflammation, which are important factors in the development of the condition. Recent studies have demonstrated that fish oil, lutein, and zeaxanthin possess anti-inflammatory and antioxidant properties.
View Article and Find Full Text PDFAntioxidants (Basel)
December 2024
Department of Ophthalmology, Ospedale Sant'Antonio, Azienda Ospedaliera, 35127 Padova, Italy.
Omega-3 fatty acids are critical components of cell membranes, including those in the retina. Specifically, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are the primary omega-3 fatty acids that have been studied for their potential benefits in retinal health, preventing the progression of retinopathy. Several studies have shown that a higher intake of omega-3 fatty acids is associated with a lower risk of developing diabetic retinopathy and age-related macular degeneration (AMD).
View Article and Find Full Text PDFPlant Biotechnol J
January 2025
Department of Plant Breeding and Biotechnology, Centro IFAPA de Málaga, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Málaga, Spain.
Carotenoids are a diverse group of pigments imparting red, orange, and yellow hues to many horticultural plants, also enhancing their nutritional properties and health benefits. In strawberry, the genetic and molecular mechanisms regulating the natural variation of fruit carotenoid composition remain largely unexplored. In this study, we use a population segregating in yellow/white flesh to detect a major quantitative trait locus (QTL), qYellow Flesh-4B, located on chromosome 4B and accounting for 82% of total phenotypic variation.
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