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Kim JM, Choi YJ. Myopia and Nutrient Associations with Age-Related Eye Diseases in Korean Adults: A Cross-Sectional KNHANES Study. Nutrients 2024; 16:1276. [PMID: 38732522 PMCID: PMC11085160 DOI: 10.3390/nu16091276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/21/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
This study assessed the prevalence of myopia, cataracts, glaucoma, and macular degeneration among Koreans over 40, utilizing data from the 7th Korea National Health and Nutrition Examination Survey (KNHANES VII, 2018). We analyzed 204,973 adults (44% men, 56% women; mean age 58.70 ± 10.75 years), exploring the association between myopia and these eye diseases through multivariate logistic regression, adjusting for confounders and calculating adjusted odds ratios (ORs) with 95% confidence intervals (CIs). Results showed a myopia prevalence of 44.6%, cataracts at 19.4%, macular degeneration at 16.2%, and glaucoma at 2.3%, with significant differences across ages and genders. A potential link was found between myopia and an increased risk of cataracts and macular degeneration, but not with glaucoma. Additionally, a higher dietary intake of carbohydrates, polyunsaturated and n-6 fatty acids, vitamins, and minerals correlated with lower risks of these diseases, underscoring the importance of the diet in managing and preventing age-related eye conditions. These findings highlight the need for dietary considerations in public health strategies and confirm myopia as a significant risk factor for specific eye diseases in the aging Korean population.
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Affiliation(s)
- Jeong-Mee Kim
- Department of Visual Optics, Far East University, Eumseong 27601, Republic of Korea;
| | - Yean-Jung Choi
- Department of Food and Nutrition, Sahmyook University, Seoul 01795, Republic of Korea
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Liang L, Saunders C, Sanossian N. Food, gut barrier dysfunction, and related diseases: A new target for future individualized disease prevention and management. Food Sci Nutr 2023; 11:1671-1704. [PMID: 37051344 PMCID: PMC10084985 DOI: 10.1002/fsn3.3229] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 12/20/2022] [Accepted: 12/28/2022] [Indexed: 03/09/2023] Open
Abstract
Dysfunction of gut barrier is known as "leaky gut" or increased intestinal permeability. Numerous recent scientific evidences showed the association between gut dysfunction and multiple gastrointestinal tract (GI) and non-GI diseases. Research also demonstrated that food plays a crucial role to cause or remedy gut dysfunction related to diseases. We reviewed recent articles from electronic databases, mainly PubMed. The data were based on animal models, cell models, and human research in vivo and in vitro models. In this comprehensive review, our aim focused on the relationship between dietary factors, intestinal permeability dysfunction, and related diseases. This review synthesizes currently available literature and is discussed in three parts: (a) the mechanism of gut barrier and function, (b) food and dietary supplements that may promote gut health, and food or medication that may alter gut function, and (c) a table that organizes the synthesized information by general mechanisms for diseases related to leaky gut/intestinal permeability and associated dietary influences. With future research, dietary intervention could be a new target for individualized disease prevention and management.
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Affiliation(s)
- Linda Liang
- University of Southern CaliforniaLos AngelesCaliforniaUSA
| | | | - Nerses Sanossian
- Department of NeurologyMedical School of Southern CaliforniaLos AngelesCaliforniaUSA
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3
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Li M, Tan CS, Foo LL, Sugianto R, Toh JY, Sun CH, Yap F, Sabanayagam C, Chong FFM, Saw SM. Dietary intake and associations with myopia in Singapore children. Ophthalmic Physiol Opt 2021; 42:319-326. [PMID: 34862645 DOI: 10.1111/opo.12929] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 11/02/2021] [Accepted: 11/02/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE To evaluate associations of dietary factors with myopia, spherical equivalent refractive error (SE) and axial length (AL) in children at age 9 from the Growing Up in Singapore Towards healthy Outcomes (GUSTO) birth cohort. METHODS We included 467 multi-ethnic children (933 eyes) who participated in the GUSTO prospective birth cohort and were delivered in two major hospitals in Singapore (2009-2010). At the 9-year visit, we assessed the 6-year incidence of myopia (between ages 3 to 9), cycloplegic SE and AL in children without myopia (SE ≤ -0.5 D in either eye) at the 3-year visit. Using a validated 112-item food frequency questionnaire, parents reported each child's average daily intake of dietary factors (nutrients and food groups) in the past month. Paired eyes were analysed using Generalised Estimating Equations with multivariable logistic or linear regression. Bonferroni corrections were applied, correcting for multiple comparisons between the 13 nutrients (p < 0.004) or 8 food groups (p < 0.006) and each outcome. RESULTS In children aged 9 years (51.0% boys; 56.3% Chinese), the 6-year incidence of myopia was 35.5%. Overall, the mean (SD) SE and AL were -0.3 (1.7) D and 23.4 (1.0) mm, respectively. In multivariable regression, macronutrients or micronutrients were not associated with incident myopia (p ≥ 0.004 for all), adjusting for total energy, gender, ethnicity, time outdoors, near-work and the number of myopic parents (additionally child's height for outcome AL). Similarly, all food groups (including refined grains, sugar-sweetened beverages, protein foods, fruits and vegetables) were not associated with incident myopia (p ≥ 0.006 for all). Additionally, none of the nutrients (p ≥ 0.004 for all) or food groups (p ≥ 0.006 for all) were associated with SE or AL. CONCLUSIONS Our study findings of no significant association between specific nutrients or food groups and incident myopia or SE or AL suggest that diet may not be associated with myopia in children aged 9 years. Well-conducted prospective studies in other populations may clarify the association.
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Affiliation(s)
- Mijie Li
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.,Myopia Research Group, Singapore Eye Research Institute, Singapore, Singapore
| | - Chuen-Seng Tan
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Li-Lian Foo
- Ophthalmology and Visual Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Ray Sugianto
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Jia Ying Toh
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Chen-Hsin Sun
- Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore
| | - Fabian Yap
- Department of Maternal Fetal Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Charumathi Sabanayagam
- Ophthalmology and Visual Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Foong-Fong Mary Chong
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.,Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Seang-Mei Saw
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.,Myopia Research Group, Singapore Eye Research Institute, Singapore, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore
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Valero-Vello M, Peris-Martínez C, García-Medina JJ, Sanz-González SM, Ramírez AI, Fernández-Albarral JA, Galarreta-Mira D, Zanón-Moreno V, Casaroli-Marano RP, Pinazo-Duran MD. Searching for the Antioxidant, Anti-Inflammatory, and Neuroprotective Potential of Natural Food and Nutritional Supplements for Ocular Health in the Mediterranean Population. Foods 2021; 10:1231. [PMID: 34071459 PMCID: PMC8229954 DOI: 10.3390/foods10061231] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 12/14/2022] Open
Abstract
Adherence to a healthy diet offers a valuable intervention to compete against the increasing cases of ocular diseases worldwide, such as dry eye disorders, myopia progression, cataracts, glaucoma, diabetic retinopathy, or age macular degeneration. Certain amounts of micronutrients must be daily provided for proper functioning of the visual system, such as vitamins, carotenoids, trace metals and omega-3 fatty acids. Among natural foods, the following have to be considered for boosting eye/vision health: fish, meat, eggs, nuts, legumes, citrus fruits, nuts, leafy green vegetables, orange-colored fruits/vegetables, olives-olive oil, and dairy products. Nutritional supplements have received much attention as potential tools for managing chronic-degenerative ocular diseases. A systematic search of PubMed, Web of Science, hand-searched publications and historical archives were performed by the professionals involved in this study, to include peer-reviewed articles in which natural food, nutrient content, and its potential relationship with ocular health. Five ophthalmologists and two researchers collected the characteristics, quality and suitability of the above studies. Finally, 177 publications from 1983 to 2021 were enclosed, mainly related to natural food, Mediterranean diet (MedDiet) and nutraceutic supplementation. For the first time, original studies with broccoli and tigernut (chufa de Valencia) regarding the ocular surface dysfunction, macular degeneration, diabetic retinopathy and glaucoma were enclosed. These can add value to the diet, counteract nutritional defects, and help in the early stages, as well as in the course of ophthalmic pathologies. The main purpose of this review, enclosed in the Special Issue "Health Benefits and Nutritional Quality of Fruits, Nuts and Vegetables," is to identify directions for further research on the role of diet and nutrition in the eyes and vision, and the potential antioxidant, anti-inflammatory and neuroprotective effects of natural food (broccoli, saffron, tigernuts and walnuts), the Mediterranean Diet, and nutraceutic supplements that may supply a promising and highly affordable scenario for patients at risk of vision loss. This review work was designed and carried out by a multidisciplinary group involved in ophthalmology and ophthalmic research and especially in nutritional ophthalmology.
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Affiliation(s)
- Mar Valero-Vello
- Ophthalmic Research Unit “Santiago Grisolía” Foundation for the Promotion of Health and Biomedical Research of Valencia FISABIO, 46017 Valencia, Spain; (M.V.-V.); (J.J.G.-M.); (S.M.S.-G.); (M.D.P.-D.)
| | - Cristina Peris-Martínez
- Ophthalmic Medical Center (FOM), Foundation for the Promotion of Health and Biomedical Research of Valencia (FISABIO), 46015 Valencia, Spain;
- Department of Surgery, University of Valencia, 46019 Valencia, Spain
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, Institute of Health Carlos III, 28029 Madrid, Spain; (A.I.R.); (D.G.-M.); (R.P.C.-M.)
| | - José J. García-Medina
- Ophthalmic Research Unit “Santiago Grisolía” Foundation for the Promotion of Health and Biomedical Research of Valencia FISABIO, 46017 Valencia, Spain; (M.V.-V.); (J.J.G.-M.); (S.M.S.-G.); (M.D.P.-D.)
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, Institute of Health Carlos III, 28029 Madrid, Spain; (A.I.R.); (D.G.-M.); (R.P.C.-M.)
- Department of Ophthalmology, General University Hospital “Morales Meseguer”, 30007 Murcia, Spain
- Department of Ophthalmology and Optometry, University of Murcia, 30120 Murcia, Spain
| | - Silvia M. Sanz-González
- Ophthalmic Research Unit “Santiago Grisolía” Foundation for the Promotion of Health and Biomedical Research of Valencia FISABIO, 46017 Valencia, Spain; (M.V.-V.); (J.J.G.-M.); (S.M.S.-G.); (M.D.P.-D.)
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, Institute of Health Carlos III, 28029 Madrid, Spain; (A.I.R.); (D.G.-M.); (R.P.C.-M.)
- Cellular and Molecular Ophthalmobiology Group, Department of Surgery, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
| | - Ana I. Ramírez
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, Institute of Health Carlos III, 28029 Madrid, Spain; (A.I.R.); (D.G.-M.); (R.P.C.-M.)
- Department of Immunology, Ophthalmology and Otorrinolaringology, Institute of Ophthalmic Research “Ramón Castroviejo”, Complutense University of Madrid, 28040 Madrid, Spain;
| | - José A. Fernández-Albarral
- Department of Immunology, Ophthalmology and Otorrinolaringology, Institute of Ophthalmic Research “Ramón Castroviejo”, Complutense University of Madrid, 28040 Madrid, Spain;
| | - David Galarreta-Mira
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, Institute of Health Carlos III, 28029 Madrid, Spain; (A.I.R.); (D.G.-M.); (R.P.C.-M.)
- Department of Ophthalmology. University Clinic Hospital of Valladolid, 47003 Valladolid, Spain
| | - Vicente Zanón-Moreno
- Ophthalmic Research Unit “Santiago Grisolía” Foundation for the Promotion of Health and Biomedical Research of Valencia FISABIO, 46017 Valencia, Spain; (M.V.-V.); (J.J.G.-M.); (S.M.S.-G.); (M.D.P.-D.)
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, Institute of Health Carlos III, 28029 Madrid, Spain; (A.I.R.); (D.G.-M.); (R.P.C.-M.)
- Faculty of Health Sciences, International University of Valencia, 46002 Valencia, Spain
| | - Ricardo P. Casaroli-Marano
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, Institute of Health Carlos III, 28029 Madrid, Spain; (A.I.R.); (D.G.-M.); (R.P.C.-M.)
- Departament of Surgery, School of Medicine and Health Sciences, Clinic Hospital of Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain
| | - María D. Pinazo-Duran
- Ophthalmic Research Unit “Santiago Grisolía” Foundation for the Promotion of Health and Biomedical Research of Valencia FISABIO, 46017 Valencia, Spain; (M.V.-V.); (J.J.G.-M.); (S.M.S.-G.); (M.D.P.-D.)
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, Institute of Health Carlos III, 28029 Madrid, Spain; (A.I.R.); (D.G.-M.); (R.P.C.-M.)
- Cellular and Molecular Ophthalmobiology Group, Department of Surgery, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
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Banerjee M, Chawla R, Kumar A. Antioxidant supplements in age-related macular degeneration: are they actually beneficial? Ther Adv Ophthalmol 2021; 13:25158414211030418. [PMID: 34471798 PMCID: PMC8404659 DOI: 10.1177/25158414211030418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 06/16/2021] [Indexed: 11/17/2022] Open
Abstract
Age-related macular degeneration (ARMD) is one of the prominent causes of central visual loss in the older age group in the urbanized, industrialized world. In recent years, many epidemiological studies and clinical trials have evaluated the role of antioxidants and micronutrients to prevent the progression of ARMD. In this article, we review some of these major studies. In addition, we review the absorption and bioavailability and possible undesirable effects of these nutrients after ingestion. The role of genotypes and inappropriate use of these supplements are also discussed. From all the above evidence, we conclude that it may not be prudent to prescribe these formulations without a proper assessment of the individual's health and dietary status. The effectiveness of all the components in antioxidant formulations is controversial. Thus, these supplements should not be prescribed just for the purpose of providing patients some kind of therapy, which may give a false sense of mental satisfaction.
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Affiliation(s)
- Mousumi Banerjee
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Rohan Chawla
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Atul Kumar
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
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Zor RK, Erşan S, Küçük E, Yıldırım G, Sarı İ. Serum malondialdehyde, monocyte chemoattractant protein-1, and vitamin C levels in wet type age-related macular degeneration patients. Ther Adv Ophthalmol 2020; 12:2515841420951682. [PMID: 33062929 PMCID: PMC7536475 DOI: 10.1177/2515841420951682] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 07/13/2020] [Indexed: 02/06/2023] Open
Abstract
Purpose: The purpose of this study was to investigate the serum levels of
malondialdehyde (MDA) which is a marker of oxidative stress, monocyte
chemoattractant protein-1 (MCP-1) which has an important role in
inflammation, and vitamin C which has antioxidant properties in patients
with wet age-related macular degeneration (wAMD). Methods: Thirty patients with wAMD were included in the study and serum levels of MDA,
MCP-1, and vitamin C were compared with healthy participants
(n = 30). Serum vitamin C and MDA levels were measured
using a spectrophotometric method. Serum MCP-1 levels were determined by the
ELISA method. Results: MCP-1 and MDA levels were higher in patients with wAMD compared with the
control group (p < 0.05). Serum vitamin C levels were
lower in patients with wAMD compared with the control group
(p < 0.05). Conclusions: The increase in the MCP-1 levels in patients with wAMD may be associated with
increased inflammation in wAMD. Decreased serum vitamin C and elevated MDA
levels in patients with wAMD suggest increased oxidative stress in wAMD
patients. These results indicate that the increased oxidative stress and
inflammation can play a role in the pathogenesis of wAMD.
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Affiliation(s)
- Ramazan Kürşad Zor
- Department of Ophthalmology, School of Medicine, Niğde Ömer Halisdemir University, Bor Yolu, Nigde 51100, Turkey
| | - Serpil Erşan
- Department of Biochemistry, School of Medicine, Niğde Ömer Halisdemir University, Niğde, Turkey
| | - Erkut Küçük
- Department of Ophthalmology, School of Medicine, Niğde Ömer Halisdemir University, Niğde, Turkey
| | - Gamze Yıldırım
- Department of Ophthalmology, Niğde Ömer Halisdemir Education and Research Hospital, Niğde, Turkey
| | - İsmail Sarı
- Department of Biochemistry, School of Medicine, Niğde Ömer Halisdemir University, Niğde, Turkey
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Dietary Patterns, Carbohydrates, and Age-Related Eye Diseases. Nutrients 2020; 12:nu12092862. [PMID: 32962100 PMCID: PMC7551870 DOI: 10.3390/nu12092862] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/16/2020] [Accepted: 09/16/2020] [Indexed: 12/19/2022] Open
Abstract
Over a third of older adults in the U.S. experience significant vision loss, which decreases independence and is a biomarker of decreased health span. As the global aging population is expanding, it is imperative to uncover strategies to increase health span and reduce the economic burden of this age-related disease. While there are some treatments available for age-related vision loss, such as surgical removal of cataracts, many causes of vision loss, such as dry age-related macular degeneration (AMD), remain poorly understood and no treatments are currently available. Therefore, it is necessary to better understand the factors that contribute to disease progression for age-related vision loss and to uncover methods for disease prevention. One such factor is the effect of diet on ocular diseases. There are many reviews regarding micronutrients and their effect on eye health. Here, we discuss the impact of dietary patterns on the incidence and progression of age-related eye diseases, namely AMD, cataracts, diabetic retinopathy, and glaucoma. Then, we focus on the specific role of dietary carbohydrates, first by outlining the physiological effects of carbohydrates on the body and then how these changes translate into eye and age-related ocular diseases. Finally, we discuss future directions of nutrition research as it relates to aging and vision loss, with a discussion of caloric restriction, intermittent fasting, drug interventions, and emerging randomized clinical trials. This is a rich field with the capacity to improve life quality for millions of people so they may live with clear vision for longer and avoid the high cost of vision-saving surgeries.
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Giannaccare G, Pellegrini M, Senni C, Bernabei F, Scorcia V, Cicero AFG. Clinical Applications of Astaxanthin in the Treatment of Ocular Diseases: Emerging Insights. Mar Drugs 2020; 18:md18050239. [PMID: 32370045 PMCID: PMC7281326 DOI: 10.3390/md18050239] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 12/12/2022] Open
Abstract
Astaxanthin is a naturally occurring red carotenoid pigment belonging to the family of xanthophylls, and is typically found in marine environments, especially in microalgae and seafood such as salmonids, shrimps and lobsters. Due to its unique molecular structure, astaxanthin features some important biologic properties, mostly represented by strong antioxidant, anti-inflammatory and antiapoptotic activities. A growing body of evidence suggests that astaxanthin is efficacious in the prevention and treatment of several ocular diseases, ranging from the anterior to the posterior pole of the eye. Therefore, the present review aimed at providing a comprehensive evaluation of current clinical applications of astaxanthin in the management of ocular diseases. The efficacy of this carotenoid in the setting of retinal diseases, ocular surface disorders, uveitis, cataract and asthenopia is reported in numerous animal and human studies, which highlight its ability of modulating several metabolic pathways, subsequently restoring the cellular homeostatic balance. To maximize its multitarget therapeutic effects, further long-term clinical trials are warranted in order to define appropriate dosage, route of administration and exact composition of the final product.
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Affiliation(s)
- Giuseppe Giannaccare
- Department of Ophthalmology, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy; (G.G.); (V.S.)
| | - Marco Pellegrini
- Ophthalmology Unit, S.Orsola-Malpighi Hospital, University of Bologna, 40138 Bologna, Italy; (M.P.); (C.S.); (F.B.)
| | - Carlotta Senni
- Ophthalmology Unit, S.Orsola-Malpighi Hospital, University of Bologna, 40138 Bologna, Italy; (M.P.); (C.S.); (F.B.)
| | - Federico Bernabei
- Ophthalmology Unit, S.Orsola-Malpighi Hospital, University of Bologna, 40138 Bologna, Italy; (M.P.); (C.S.); (F.B.)
| | - Vincenzo Scorcia
- Department of Ophthalmology, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy; (G.G.); (V.S.)
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10
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Nutrients for Prevention of Macular Degeneration and Eye-Related Diseases. Antioxidants (Basel) 2019; 8:antiox8040085. [PMID: 30986936 PMCID: PMC6523787 DOI: 10.3390/antiox8040085] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 03/18/2019] [Accepted: 03/25/2019] [Indexed: 12/28/2022] Open
Abstract
The risk of macular degeneration can be reduced through the consumption of antioxidant-rich foods, supplements, and nutraceutical formulas. This review focuses on the antioxidants, vitamins, and minerals that have been reported for reducing the risk of macular degeneration and other eye-related diseases. Antioxidants including anthocyanins, carotenoids, flavonoids, and vitamins have been shown to reduce the risk of eye-related diseases. Anthocyanins extracted from berries are powerful antioxidants. Cyanidin, delphinidin, malvidin, pelargonidin, peonidin, and petunidin are anthocyanin aglycones detected in berries, currants, and other colored fruits and vegetables. β-Carotene, as well as xanthophyll lutein and zeaxanthin, have been reported to reduce the risk of macular degeneration. Flavonoids from plants help in the prevention of eye-related diseases through anti-inflammatory mechanisms. A combination of these antioxidants, vitamins, and minerals possess a synergistic effect on the prevention or risk reduction of macular degeneration. Formulas have been developed as dietary supplements to cater to the high demand from consumers and patients with eye problems. Many of the formulated dietary supplements that are sold in the market have been clinically proven for their efficacy to treat eye diseases. Although the bioactivities in the supplement capsules or tablets have been scientifically established for reducing risks of several diseases, which include macular degeneration and other eye-related diseases, knowledge on the right dosage, efficacy, and bioavailability of antioxidants, vitamins, and minerals is important for consumers. The information may help them make the best decision in choosing the right dietary supplements and nutraceuticals following the evidence-based recommended dosages and reference intakes for improving general health and preventing eye-related diseases. This review covers the potential causal factors involved in eye diseases, clinically proven treatments, and controversial findings on the antioxidants in the prevention of macular degeneration. Future studies should consider multiethnic and multicenter trials for eliminating potential bias in research.
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Rinninella E, Mele MC, Merendino N, Cintoni M, Anselmi G, Caporossi A, Gasbarrini A, Minnella AM. The Role of Diet, Micronutrients and the Gut Microbiota in Age-Related Macular Degeneration: New Perspectives from the Gut⁻Retina Axis. Nutrients 2018; 10:nu10111677. [PMID: 30400586 PMCID: PMC6267253 DOI: 10.3390/nu10111677] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 10/25/2018] [Accepted: 10/31/2018] [Indexed: 12/13/2022] Open
Abstract
Age-related macular degeneration (AMD) is a complex multifactorial disease and the primary cause of legal and irreversible blindness among individuals aged ≥65 years in developed countries. Globally, it affects 30–50 million individuals, with an estimated increase of approximately 200 million by 2020 and approximately 300 million by 2040. Currently, the neovascular form may be able to be treated with the use of anti-VEGF drugs, while no effective treatments are available for the dry form. Many studies, such as the randomized controlled trials (RCTs) Age-Related Eye Disease Study (AREDS) and AREDS 2, have shown a potential role of micronutrient supplementation in lowering the risk of progression of the early stages of AMD. Recently, low-grade inflammation, sustained by dysbiosis and a leaky gut, has been shown to contribute to the development of AMD. Given the ascertained influence of the gut microbiota in systemic low-grade inflammation and its potential modulation by macro- and micro-nutrients, a potential role of diet in AMD has been proposed. This review discusses the role of the gut microbiota in the development of AMD. Using PubMed, Web of Science and Scopus, we searched for recent scientific evidence discussing the impact of dietary habits (high-fat and high-glucose or -fructose diets), micronutrients (vitamins C, E, and D, zinc, beta-carotene, lutein and zeaxanthin) and omega-3 fatty acids on the modulation of the gut microbiota and their relationship with AMD risk and progression.
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Affiliation(s)
- Emanuele Rinninella
- UOC di Nutrizione Clinica, Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy.
- Istituto di Patologia Speciale Medica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy.
| | - Maria Cristina Mele
- UOC di Nutrizione Clinica, Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy.
- Istituto di Patologia Speciale Medica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy.
| | - Nicolò Merendino
- Laboratorio di Nutrizione Cellulare e Molecolare, Dipartimento di Scienze Ecologiche e Biologiche (DEB), Università della Tuscia, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - Marco Cintoni
- Scuola di Specializzazione in Scienza dell'Alimentazione, Università di Roma Tor Vergata, Via Montpellier 1, 00133 Rome, Italy.
| | - Gaia Anselmi
- UOC di Nutrizione Clinica, Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy.
| | - Aldo Caporossi
- UOC di Oculistica, Dipartimento di Scienze dell'Invecchiamento, Neurologiche, Ortopediche e della Testa-Collo, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy.
- Istituto di Oftalmologia, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy.
| | - Antonio Gasbarrini
- UOC di Nutrizione Clinica, Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy.
- Istituto di Patologia Speciale Medica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy.
| | - Angelo Maria Minnella
- UOC di Oculistica, Dipartimento di Scienze dell'Invecchiamento, Neurologiche, Ortopediche e della Testa-Collo, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy.
- Istituto di Oftalmologia, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy.
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12
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Broadhead GK, Grigg JR, McCluskey P, Hong T, Schlub TE, Chang AA. Saffron therapy for the treatment of mild/moderate age-related macular degeneration: a randomised clinical trial. Graefes Arch Clin Exp Ophthalmol 2018; 257:31-40. [PMID: 30343354 DOI: 10.1007/s00417-018-4163-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 10/02/2018] [Accepted: 10/15/2018] [Indexed: 12/26/2022] Open
Abstract
PURPOSE To assess the efficacy and safety of oral saffron, a natural antioxidant, in treating mild/moderate age-related macular degeneration (AMD). METHODS Randomised, double-blinded, placebo-controlled crossover trial of 100 adults (> 50 years) with mild/moderate AMD and vision > 20/70 Snellen equivalent in at least one eye. Exclusion criteria included confounding visual lesions, or significant gastrointestinal disease impairing absorption. Participants were given oral saffron supplementation (20 mg/day) for 3 months or placebo for 3 months, followed by crossover for 3 months. Participants already consuming Age-Related Eye Diseases Study (AREDS) supplements or equivalent maintained these. Primary outcomes included changes in best-corrected visual acuity (BCVA) and changes in multifocal electroretinogram (mfERG) response density and latency. Secondary outcomes included safety outcomes and changes in mfERG and BCVA amongst participants on AREDS supplements. RESULTS Mean BCVA improved 0.69 letters (p = 0.001) and mean-pooled mfERG latency reduced 0.17 ms (p = 0.04) on saffron compared to placebo. Amongst participants on AREDS supplements, mean BCVA improved 0.73 letters p = 0.006) and mean-pooled mfERG response density improved 2.8% (p = 0.038). There was no significant difference in adverse event occurrence (p > 0.10). CONCLUSION Saffron supplementation modestly improved visual function in participants with AMD, including those using AREDS supplements. Given the chronic nature of AMD, longer-term supplementation may produce greater benefits.
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Affiliation(s)
- Geoffrey K Broadhead
- Save Sight Institute, The University of Sydney, 8 Macquarie Street, Sydney, NSW, 2000, Australia.,Sydney Institute of Vision Science, Sydney, Australia.,Sydney Retina Clinic & Day Surgery, Sydney, Australia
| | - John R Grigg
- Save Sight Institute, The University of Sydney, 8 Macquarie Street, Sydney, NSW, 2000, Australia
| | - Peter McCluskey
- Save Sight Institute, The University of Sydney, 8 Macquarie Street, Sydney, NSW, 2000, Australia
| | - Thomas Hong
- Sydney Institute of Vision Science, Sydney, Australia.,Sydney Retina Clinic & Day Surgery, Sydney, Australia
| | - Timothy E Schlub
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
| | - Andrew A Chang
- Save Sight Institute, The University of Sydney, 8 Macquarie Street, Sydney, NSW, 2000, Australia. .,Sydney Institute of Vision Science, Sydney, Australia. .,Sydney Retina Clinic & Day Surgery, Sydney, Australia.
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13
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Watson J, Lee M, Garcia-Casal MN. Consequences of Inadequate Intakes of Vitamin A, Vitamin B 12, Vitamin D, Calcium, Iron, and Folate in Older Persons. CURRENT GERIATRICS REPORTS 2018; 7:103-113. [PMID: 29721404 PMCID: PMC5918526 DOI: 10.1007/s13670-018-0241-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Purpose of Review This review broadly discusses the consequences of inadequate consumption, by deficit or excess, of selected micronutrients on the quality of life and morbidity during aging, specifically considering increases in life expectancy and the costs of care in the older persons. Recent Findings A literature review of the periods 2012 to 2018, focusing on vitamins A, B12, and D, calcium, iron and folate, was completed as these micronutrients are found to significantly affect the aging process. Causation and application of these micronutrients to disorders related to aging are controversial and mixed. This review highlights research needs and controversial points on the role of these micronutrients. Summary Micronutrient deficiencies are a common and avoidable contributor to decreased quality of life and healthcare costs in the older persons. Further research is needed to determine adequate intakes and innovative uses, including appropriate thresholds for improved health outcomes for this population.
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Affiliation(s)
- Jessica Watson
- 1Morsani College of Medicine, University of South Florida, Tampa, Florida USA
| | - Marissa Lee
- 2Loma Linda University, School of Public Health, Loma Linda, CA USA
| | - Maria Nieves Garcia-Casal
- 3Evidence and Programme Guidance Unit, Department of Nutrition for Health and Development, World Health Organization, 20 Av Appia, 1211 Geneva, Switzerland
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14
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Power R, Coen RF, Beatty S, Mulcahy R, Moran R, Stack J, Howard AN, Nolan JM. Supplemental Retinal Carotenoids Enhance Memory in Healthy Individuals with Low Levels of Macular Pigment in A Randomized, Double-Blind, Placebo-Controlled Clinical Trial. J Alzheimers Dis 2018; 61:947-961. [PMID: 29332050 DOI: 10.3233/jad-170713] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Rebecca Power
- Nutrition Research Centre Ireland, School of Health Science, Carriganore House, Waterford Institute of Technology, West Campus, Waterford, Ireland
| | - Robert F. Coen
- Mercer’s Institute for Research on Ageing, St. James’s Hospital, Dublin, Ireland
| | - Stephen Beatty
- Nutrition Research Centre Ireland, School of Health Science, Carriganore House, Waterford Institute of Technology, West Campus, Waterford, Ireland
| | - Riona Mulcahy
- Age-related Care Unit, University Hospital Waterford, Waterford, Ireland
| | - Rachel Moran
- Nutrition Research Centre Ireland, School of Health Science, Carriganore House, Waterford Institute of Technology, West Campus, Waterford, Ireland
| | - Jim Stack
- Nutrition Research Centre Ireland, School of Health Science, Carriganore House, Waterford Institute of Technology, West Campus, Waterford, Ireland
| | | | - John M. Nolan
- Nutrition Research Centre Ireland, School of Health Science, Carriganore House, Waterford Institute of Technology, West Campus, Waterford, Ireland
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15
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Kim EK, Kim H, Vijayakumar A, Kwon O, Chang N. Associations between fruit and vegetable, and antioxidant nutrient intake and age-related macular degeneration by smoking status in elderly Korean men. Nutr J 2017; 16:77. [PMID: 29202844 PMCID: PMC5715512 DOI: 10.1186/s12937-017-0301-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/27/2017] [Indexed: 01/12/2023] Open
Abstract
Background Age-related macular degeneration (AMD) is one of the major causes of irreversible blindness. The objective of this study was to determine whether there is any relationship between dietary intake of fruits and vegetables (F&V) and antioxidant nutrients including carotenoids and AMD according to smoking status in elderly men. Methods We performed a cross-sectional analysis using nationally representative samples of elderly aged ≥ 65 years (n = 1414) from the Korea National Health and Nutrition Examination Survey (KNHANES, 2010–2012). Results The current smokers consumed less food in total, and, in particular, less cereals/potatoes/sugar products, fruits and vegetables than the nonsmokers and former smokers (p < 0.05). Intake of energy, thiamin, vitamin C, vitamin A, and β-carotene were significantly lower in the current smokers than in the nonsmokers and the former smokers. For current smokers, the ORs of the highest tertile compared with the lowest tertile were 0.36 (95% CI: 0.14–0.96, p for trend = 0.0576) for F&V, 0.32 (95% CI: 0.12–0.85, p for trend = 0.0561) for vitamin C, 0.23 (95% CI: 0.08–0.67, p for trend = 0.0038) for α-carotene, 0.13 (95% CI: 0.04–0.46, p for trend = 0.0003) for β-carotene after adjusting for confounding factors. In contrast, there was no association between antioxidant nutrient intake and AMD among the nonsmokers and former smokers. Conclusions These results suggest that increased consumption of fruits and vegetables containing antioxidant components such as vitamin C, α-carotene, and β-carotene may have a protective effect on AMD. These effects may be more evident among current smokers.
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Affiliation(s)
- Eun-Kyung Kim
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Hyesook Kim
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Aswathy Vijayakumar
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Oran Kwon
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Namsoo Chang
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 120-750, Republic of Korea.
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16
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Combined influence of poor health behaviours on the prevalence and 15-year incidence of age-related macular degeneration. Sci Rep 2017; 7:4359. [PMID: 28659620 PMCID: PMC5489492 DOI: 10.1038/s41598-017-04697-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 05/18/2017] [Indexed: 01/03/2023] Open
Abstract
We aimed to establish the collective influence of four lifestyle practices (physical activity, diet, smoking and alcohol consumption) on the prevalence and incidence of AMD. At baseline, 2428 participants aged 49+ with complete lifestyle and AMD data were examined, and of these, 1903 participants were re-examined 15 years later. AMD was assessed from retinal photographs. A health behaviour score was calculated, allocating 1 point for each poor behaviour: current smoking; fruits and vegetables consumed <4 serves daily; <3 episodes of physical activity per week; and >2 alcoholic drinks per day. Cross-sectional analysis showed that participants who engaged in all 4 poor health behaviours (n = 29) versus those who did not engage in unhealthy behaviours (reference group; n = 677) had greater odds of any and late AMD: multivariable-adjusted OR, 5.14 (95% CI, 1.04–25.45) and OR 29.53 (95% CI 2.72–321.16), respectively. A marginally non-significant association was observed between increasing number of poor health behaviours and 15-year incidence of early AMD (multivariable-adjusted P-trend = 0.08). Our data suggests that motivating patients with AMD to eat better, exercise more, limit alcohol intake and avoid smoking seems advisable to decelerate the development or worsening of existing AMD.
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17
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Cougnard-Grégoire A, Merle BMJ, Korobelnik JF, Rougier MB, Delyfer MN, Le Goff M, Samieri C, Dartigues JF, Delcourt C. Olive Oil Consumption and Age-Related Macular Degeneration: The Alienor Study. PLoS One 2016; 11:e0160240. [PMID: 27467382 PMCID: PMC4965131 DOI: 10.1371/journal.pone.0160240] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 07/15/2016] [Indexed: 12/03/2022] Open
Abstract
Background Olive oil provides a mixture of lipids and antioxidant nutrients which may help preventing age-related diseases such as age-related macular degeneration (AMD). However, little is known about the associations between olive oil consumption and the risk of AMD. Objective To examine associations between olive oil use and AMD prevalence in elderly subjects. Methods Alienor (Antioxydants, Lipides Essentiels, Nutrition et maladies OculaiRes) is a population-based study on eye diseases performed in elderly residents of Bordeaux (France). In 1999–2000, frequencies of consumption of main categories of dietary fats used were collected. In 2006–2088, AMD was graded from non mydriatic retinal photographs into three exclusive stages: no AMD, early AMD, and late AMD. Two categories of preferred dietary fat used (olive oil, n-3 rich oils, n-6 rich oils, mixed oils, butter and margarine) were defined: “no use” and “regular use” (using fat for spreading and/or cooking and/or dressing). Associations of AMD with each fat use were estimated using Generalized Estimating Equation logistic regressions models. Results Our study included 654 subjects (1269 eyes) with complete data (n = 268 eyes with early AMD and n = 56 with late AMD). After adjustment for potential confounders, regular use of olive oil was significantly associated with a decreased risk of late AMD (odds ratio [OR] = 0.44, 95% confidence interval [CI]: 0.21;0.91). In contrast, regular use of olive oil was not significantly associated with early AMD (OR = 0.84, 95%CI: 0.59;1.21). No associations were found between regular consumption of n-3 rich oils, n-6 rich oils, mixed oils, butter and margarine and AMD, whatever the stage. Conclusions This study suggests a protective effect of olive oil consumption for late AMD in this elderly community-dwelling population. Characterization of the mediating nutrients deserves further research.
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Affiliation(s)
- Audrey Cougnard-Grégoire
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
- * E-mail:
| | - Bénédicte M. J. Merle
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
| | - Jean-François Korobelnik
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
- CHU de Bordeaux, Service d’Ophtalmologie, Bordeaux, F-33000, France
| | - Marie-Bénédicte Rougier
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
- CHU de Bordeaux, Service d’Ophtalmologie, Bordeaux, F-33000, France
| | - Marie-Noëlle Delyfer
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
- CHU de Bordeaux, Service d’Ophtalmologie, Bordeaux, F-33000, France
| | - Mélanie Le Goff
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
| | - Cécilia Samieri
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
| | - Jean-François Dartigues
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
| | - Cécile Delcourt
- Univ Bordeaux, ISPED, F-33000 Bordeaux, France
- Inserm U1219 –Bordeaux Population Health Research Center, F-33000 Bordeaux, France
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18
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Vonder Haar C, Peterson TC, Martens KM, Hoane MR. Vitamins and nutrients as primary treatments in experimental brain injury: Clinical implications for nutraceutical therapies. Brain Res 2016; 1640:114-129. [PMID: 26723564 PMCID: PMC4870112 DOI: 10.1016/j.brainres.2015.12.030] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/14/2015] [Accepted: 12/15/2015] [Indexed: 02/07/2023]
Abstract
With the numerous failures of pharmaceuticals to treat traumatic brain injury in humans, more researchers have become interested in combination therapies. This is largely due to the multimodal nature of damage from injury, which causes excitotoxicity, oxidative stress, edema, neuroinflammation and cell death. Polydrug treatments have the potential to target multiple aspects of the secondary injury cascade, while many previous therapies focused on one particular aspect. Of specific note are vitamins, minerals and nutrients that can be utilized to supplement other therapies. Many of these have low toxicity, are already FDA approved and have minimal interactions with other drugs, making them attractive targets for therapeutics. Over the past 20 years, interest in supplementation and supraphysiologic dosing of nutrients for brain injury has increased and indeed many vitamins and nutrients now have a considerable body of the literature backing their use. Here, we review several of the prominent therapies in the category of nutraceutical treatment for brain injury in experimental models, including vitamins (B2, B3, B6, B9, C, D, E), herbs and traditional medicines (ginseng, Gingko biloba), flavonoids, and other nutrients (magnesium, zinc, carnitine, omega-3 fatty acids). While there is still much work to be done, several of these have strong potential for clinical therapies, particularly with regard to polydrug regimens. This article is part of a Special Issue entitled SI:Brain injury and recovery.
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19
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Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan. Sci Rep 2016; 6:20723. [PMID: 26846575 PMCID: PMC4742947 DOI: 10.1038/srep20723] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 01/11/2016] [Indexed: 12/15/2022] Open
Abstract
This case-control study reports the association between nutrient intake and neovascular age-related macular degeneration (AMD) in Japan. The nutrient intake of 161 neovascular AMD cases from two university hospitals and 369 population-based control subjects from a cohort study was assessed using a brief-type self-administered questionnaire on diet history, which required respondent recall of the usual intake of 58 foods during the preceding month. Energy-adjusted nutrient intake values were compared between the groups. Logistic regression analysis was used to estimate odds ratios (ORs) and 95% CIs adjusted for smoking history, age, sex, chronic disease history, supplement use, and alcohol consumption. Logistic regression analysis demonstrated that low intakes of n-3 fatty acid, α-tocopherol, zinc, vitamin D, vitamin C, and β-carotene were associated with neovascular AMD (Trend P < 0.0001 for n-3 fatty acid, Trend P < 0.0001 for α-tocopherol, Trend P < 0.0001 for zinc, Trend P = 0.002 for vitamin D, Trend P = 0.04 for vitamin C, Trend P = 0.0004 for β-carotene). There was no association with retinol or cryptoxanthin intake and neovascular AMD (P = 0.67, 0.06).
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Clément A, Bacon R, Sirois S, Dorais M. Mature-ripe tomato spectral classification according to lycopene content and fruit type by visible, NIR reflectance and intrinsic fluorescence. QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS 2015. [DOI: 10.3920/qas2014.0521] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- A. Clément
- Agriculture and Agri-Food Canada, Food Research and Development Centre, 3600 Casavant Ouest, St-Hyacinthe, QC, J2S 8E3, Canada
| | - R. Bacon
- Agriculture and Agri-Food Canada, Horticultural Research Centre, Laval University, 2480 boulevard Hochelaga, Quebec, QC, G1V 0A6, Canada
| | - S. Sirois
- Agriculture and Agri-Food Canada, Food Research and Development Centre, 3600 Casavant Ouest, St-Hyacinthe, QC, J2S 8E3, Canada
| | - M. Dorais
- Agriculture and Agri-Food Canada, Horticultural Research Centre, Laval University, 2480 boulevard Hochelaga, Quebec, QC, G1V 0A6, Canada
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21
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Broadhead GK, Grigg JR, Chang AA, McCluskey P. Dietary modification and supplementation for the treatment of age-related macular degeneration. Nutr Rev 2015; 73:448-62. [PMID: 26081455 DOI: 10.1093/nutrit/nuv005] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Age-related macular degeneration (AMD) causes a significant proportion of visual loss in the developed world. Currently, little is known about its pathogenesis, and treatment options are limited. Dietary intake is one of the few modifiable risk factors for this condition. The best-validated therapies remain oral antioxidant supplements based on those investigated in the Age-Related Eye Disease Study (AREDS) and the recently completed Age-Related Eye Disease Study 2 (AREDS2). In this review, current dietary guidelines related to AMD, along with the underlying evidence to support them, are presented in conjunction with current treatment recommendations. Both AREDS and AREDS2 are discussed, as are avenues for further research, including supplementation with vitamin D and saffron. Despite the considerable disease burden of atrophic AMD, few effective therapies are available to treat it, and further research is required.
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Affiliation(s)
- Geoffrey K Broadhead
- G.K. Broadhead, J. Grigg, A.A Chang, and P. McCluskey are with the Save Sight Institute, Department of Ophthalmology, The University of Sydney, Sydney, New South Wales, 2000, Australia. G.K. Broadhead and A.A Chang are with the Sydney Institute of Vision Science, Sydney, New South Wales, 2000, Australia.
| | - John R Grigg
- G.K. Broadhead, J. Grigg, A.A Chang, and P. McCluskey are with the Save Sight Institute, Department of Ophthalmology, The University of Sydney, Sydney, New South Wales, 2000, Australia. G.K. Broadhead and A.A Chang are with the Sydney Institute of Vision Science, Sydney, New South Wales, 2000, Australia
| | - Andrew A Chang
- G.K. Broadhead, J. Grigg, A.A Chang, and P. McCluskey are with the Save Sight Institute, Department of Ophthalmology, The University of Sydney, Sydney, New South Wales, 2000, Australia. G.K. Broadhead and A.A Chang are with the Sydney Institute of Vision Science, Sydney, New South Wales, 2000, Australia
| | - Peter McCluskey
- G.K. Broadhead, J. Grigg, A.A Chang, and P. McCluskey are with the Save Sight Institute, Department of Ophthalmology, The University of Sydney, Sydney, New South Wales, 2000, Australia. G.K. Broadhead and A.A Chang are with the Sydney Institute of Vision Science, Sydney, New South Wales, 2000, Australia
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22
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Schmidl D, Garhöfer G, Schmetterer L. Nutritional supplements in age-related macular degeneration. Acta Ophthalmol 2015; 93:105-21. [PMID: 25586104 DOI: 10.1111/aos.12650] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 11/28/2014] [Indexed: 12/22/2022]
Abstract
Age-related macular degeneration (AMD) is the most frequent cause of blindness in the Western World. While with new therapies that are directed towards vascular endothelial growth factor (VEGF), a potentially efficient treatment option for the wet form of the disease has been introduced, a therapeutic regimen for dry AMD is still lacking. There is evidence from several studies that oral intake of supplements is beneficial in preventing progression of the disease. Several formulations of micronutrients are currently available. The present review focuses on the role of supplements in the treatment and prevention of AMD and sums up the current knowledge about the most frequently used micronutrients. In addition, regulatory issues are discussed, and future directions for the role of supplementation in AMD are highlighted.
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Affiliation(s)
- Doreen Schmidl
- Department of Clinical Pharmacology; Medical University of Vienna; Vienna Austria
| | - Gerhard Garhöfer
- Department of Clinical Pharmacology; Medical University of Vienna; Vienna Austria
| | - Leopold Schmetterer
- Department of Clinical Pharmacology; Medical University of Vienna; Vienna Austria
- Center for Medical Physics and Biomedical Engineering; Medical University of Vienna; Vienna Austria
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23
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Funk RHW, Schumann U, Engelmann K, Becker KA, Roehlecke C. Blue light induced retinal oxidative stress: Implications for macular degeneration. World J Ophthalmol 2014; 4:29-34. [DOI: 10.5318/wjo.v4.i3.29] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 03/19/2014] [Accepted: 06/11/2014] [Indexed: 02/05/2023] Open
Abstract
A number of studies have shown that oxidative stress can be harmful for the retina. The real causal circumstances that lead to degenerative diseases like age related macular degeneration remain obscure. Whether light induced radical stress is a direct interaction of light with photoreceptors or a secondary mechanism within the pigment epithelium or choroid is in discussion. Among the molecular mechanisms involved are production of reactive oxygen species (ROS), secondary lipid peroxidation, protein oxidation and DNA-damage. The initial trigger to write this review was first a recent finding of our group that the photoreceptor outer segments produce great amounts of ROS and second the detection of ectopic enzymes of the respiratory chain localized there - in addition to the hitherto known ROS sources like the visual pigments with their intermediates and the photoreceptor mitochondria harbouring the respiratory chain.
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24
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Iwasa K, Shima K, Komai K, Nishida Y, Yokota T, Yamada M. Retinitis pigmentosa and macular degeneration in a patient with ataxia with isolated vitamin E deficiency with a novel c.717 del C mutation in the TTPA gene. J Neurol Sci 2014; 345:228-30. [PMID: 25066259 DOI: 10.1016/j.jns.2014.07.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 05/29/2014] [Accepted: 07/01/2014] [Indexed: 12/12/2022]
Abstract
Ataxia with isolated vitamin E deficiency (AVED) is a neurodegenerative disease caused by a mutation in the α-tocopherol transfer protein gene (TTPA). The clinical features of the disease resemble Friedreich's ataxia. However, AVED is associated with low plasma vitamin E levels, which results in compromised antioxidant function. Dysregulation of this lipid-soluble antioxidant vitamin plays a major role in the neurodegeneration observed in AVED. Some AVED patients experience decreased visual acuity. Retinitis pigmentosa is thought to be the main cause of this visual impairment. Although antioxidant levels are important for the prevention of macular degeneration, there have been no reports of macular degeneration in AVED. Here, we describe a patient with AVED with progressive macular degeneration, who carried a novel truncating mutation-c.717 del C (p.D239EfsX25)-in exon 5 of the TTPA gene. These findings suggest that this newly identified mutation results in severely low serum vitamin E levels, which may be associated with the development of retinitis pigmentosa and macular degeneration.
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Affiliation(s)
- Kazuo Iwasa
- Department of Neurology and Neurobiology of Aging, Kanazawa University Graduate School of Medical Science, Japan.
| | - Keisuke Shima
- Department of Neurology and Neurobiology of Aging, Kanazawa University Graduate School of Medical Science, Japan.
| | - Kiyonobu Komai
- Department of Neurology, National Hospital Organization Iou National Hospital, Japan.
| | - Yoichiro Nishida
- Department of Neurology and Neurological Science, Tokyo Medical and Dental University, Japan.
| | - Takanori Yokota
- Department of Neurology and Neurological Science, Tokyo Medical and Dental University, Japan.
| | - Masahito Yamada
- Department of Neurology and Neurobiology of Aging, Kanazawa University Graduate School of Medical Science, Japan.
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25
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Fritsche LG, Fariss RN, Stambolian D, Abecasis GR, Curcio CA, Swaroop A. Age-related macular degeneration: genetics and biology coming together. Annu Rev Genomics Hum Genet 2014; 15:151-71. [PMID: 24773320 DOI: 10.1146/annurev-genom-090413-025610] [Citation(s) in RCA: 340] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Genetic and genomic studies have enhanced our understanding of complex neurodegenerative diseases that exert a devastating impact on individuals and society. One such disease, age-related macular degeneration (AMD), is a major cause of progressive and debilitating visual impairment. Since the pioneering discovery in 2005 of complement factor H (CFH) as a major AMD susceptibility gene, extensive investigations have confirmed 19 additional genetic risk loci, and more are anticipated. In addition to common variants identified by now-conventional genome-wide association studies, targeted genomic sequencing and exome-chip analyses are uncovering rare variant alleles of high impact. Here, we provide a critical review of the ongoing genetic studies and of common and rare risk variants at a total of 20 susceptibility loci, which together explain 40-60% of the disease heritability but provide limited power for diagnostic testing of disease risk. Identification of these susceptibility loci has begun to untangle the complex biological pathways underlying AMD pathophysiology, pointing to new testable paradigms for treatment.
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Affiliation(s)
- Lars G Fritsche
- Center for Statistical Genetics, Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan 48109; ,
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26
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Holz FG, Schmitz-Valckenberg S, Fleckenstein M. Recent developments in the treatment of age-related macular degeneration. J Clin Invest 2014; 124:1430-8. [PMID: 24691477 PMCID: PMC3973093 DOI: 10.1172/jci71029] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Age-related macular degeneration (AMD) is a common cause of visual loss in the elderly, with increasing prevalence due to increasing life expectancy. While the introduction of anti-VEGF therapy has improved outcomes, there are still major unmet needs and gaps in the understanding of underlying biological processes. These include early, intermediate, and atrophic disease stages. Recent studies have assessed therapeutic approaches addressing various disease-associated pathways, including complement inhibitors. Drug-delivery aspects are also relevant, as many agents have to be administered repeatedly. Herein, relevant pathogenetic factors and underlying mechanisms as well as recent and potential therapeutic approaches are reviewed.
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27
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Nagineni CN, Raju R, Nagineni KK, Kommineni VK, Cherukuri A, Kutty RK, Hooks JJ, Detrick B. Resveratrol Suppresses Expression of VEGF by Human Retinal Pigment Epithelial Cells: Potential Nutraceutical for Age-related Macular Degeneration. Aging Dis 2014; 5:88-100. [PMID: 24729934 DOI: 10.14366/ad.2014.050088] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 01/10/2014] [Accepted: 01/12/2014] [Indexed: 12/21/2022] Open
Abstract
Age-related macular degeneration (AMD) is a sight threating retinal eye disease that affects millions of aging individuals world-wide. Choroid-retinal pigment epithelium (RPE)-neuroretina axis in the posterior compartment of the eye is the primary site of AMD pathology. There are compelling evidence to indicate association of vascular endothelial growth factors (VEGF) to AMD. Here, we report the inhibitory actions of resveratrol (RSV) on inflammatory cytokine, TGF-β and hypoxia induced VEGF secretion by human retinal pigment epithelial cells (HRPE). HRPE cultures prepared from aged human donor eyes were used for the studies in this report. HRPE secreted both VEGF-A and VEGF-C in small quantities constitutively. Stimulation with a mixture of inflammatory cytokines (IFN-γ, TNF-α, IL-1β), significantly increased the secretion of both VEGF-A and VEGF-C. RSV, in a dose dependent (10-50 uM) manner, suppressed VEGF-A and VEGF-C secretion induced by inflammatory cytokines significantly. RT-PCR analysis indicated that effects of RSV on VEGF secretion were possibly due to decreased mRNA levels. TGF-β and cobalt chloride (hypoxia mimic) also upregulated HRPE cell production of VEGF-A, and this was inhibited by RSV. In contrast, RSV had no effect on anti-angiogenic molecules, endostatin and pigment epithelial derived factor secretion. Studies using an in vitro scratch assay revealed that wound closure was also inhibited by RSV. These results demonstrate that RSV can suppress VEGF secretion induced by inflammatory cytokines, TGF-β and hypoxia. Under pathological conditions, over expression of VEGF is known to worsen AMD. Therefore, RSV may be useful as nutraceutical in controlling pathological choroidal neovascularization processes in AMD.
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Affiliation(s)
| | - Raghavan Raju
- Departments of Medical Laboratory, Imaging and Radiological Sciences, and Biochemistry and Molecular Biology, Georgia Regents University, Augusta, Georgia, USA
| | | | - Vijay K Kommineni
- Laboratory of Immunology, National Eye Institute, NIH, Bethesda, Maryland, USA
| | - Aswini Cherukuri
- Laboratory of Retinal Cell and Molecular Biology, National Eye institute, NIH, Bethesda, Maryland
| | - R Krishnan Kutty
- Laboratory of Retinal Cell and Molecular Biology, National Eye institute, NIH, Bethesda, Maryland
| | - John J Hooks
- Laboratory of Immunology, National Eye Institute, NIH, Bethesda, Maryland, USA
| | - Barbara Detrick
- Department of Pathology, Johns Hopkins University, School of Medicine, Baltimore, Maryland, USA
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28
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Hussain G, Schmitt F, Loeffler JP, Gonzalez de Aguilar JL. Fatting the brain: a brief of recent research. Front Cell Neurosci 2013; 7:144. [PMID: 24058332 PMCID: PMC3766822 DOI: 10.3389/fncel.2013.00144] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 08/19/2013] [Indexed: 01/06/2023] Open
Abstract
Fatty acids are of paramount importance to all cells, since they provide energy, function as signaling molecules, and sustain structural integrity of cellular membranes. In the nervous system, where fatty acids are found in huge amounts, they participate in its development and maintenance throughout life. Growing evidence strongly indicates that fatty acids in their own right are also implicated in pathological conditions, including neurodegenerative diseases, mental disorders, stroke, and trauma. In this review, we focus on recent studies that demonstrate the relationships between fatty acids and function and dysfunction of the nervous system. Fatty acids stimulate gene expression and neuronal activity, boost synaptogenesis and neurogenesis, and prevent neuroinflammation and apoptosis. By doing so, they promote brain development, ameliorate cognitive functions, serve as anti-depressants and anti-convulsants, bestow protection against traumatic insults, and enhance repairing processes. On the other hand, unbalance between different fatty acid families or excess of some of them generate deleterious side effects, which limit the translatability of successful results in experimental settings into effective therapeutic strategies for humans. Despite these constraints, there exists realistic evidence to consider that nutritional therapies based on fatty acids can be of benefit to several currently incurable nervous system diseases.
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Affiliation(s)
- Ghulam Hussain
- UMR_S 1118, Université de Strasbourg Strasbourg, France ; Mécanismes Centraux et Périphériques de la Neurodégénérescence, U1118, Institut National de la Santé et de la Recherche Médicale, Faculté de Médecine, Université de Strasbourg Strasbourg, France
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