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Goswami V, Das SM, Deep S. Quercetin-Loaded Nanocarriers as Effective Inhibitors for Copper Metal Ion-Induced γD-Crystallin Aggregation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:16093-16102. [PMID: 39046313 DOI: 10.1021/acs.langmuir.4c00933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Cataract is one of the leading causes of blindness worldwide. Till date, the only solution for cataracts is surgery, which is a resource-intensive solution. A much simpler solution is to find a potential drug that could inhibit aggregation. It is well established that nonamyloid aggregates of eye lens protein result in cataract. γD-Crystallin, a thermodynamically stable protein, is one of the most abundant proteins in the core of the eye lens and is found to aggregate under stress conditions, leading to the cataract. It has also been found that in cataractous lens, the concentration of metals like copper is elevated significantly as compared to healthy eye lens, suggesting their role in inducing aggregation. In our present study, aggregation of γD-Crystallin was carried out in the presence of Cu (II). Using techniques like turbidity assay, CD spectroscopy, ANS binding assay, and microscopic studies like TEM, it could be confirmed that protein aggregates in the presence of Cu (II) and the nature of aggregates is amorphous. Various polyphenols were tested to suppress aggregation of the protein. Quercetin was observed to be the most efficient. To overcome the problems associated with the delivery of polyphenols, such as solubility and bioavailability, quercetin was encapsulated in two types of nanocarriers. Their characterization was done using TEM, DLS, and other techniques. The potency of quercetin-loaded CS-TPP/CS-PLGA NPs as inhibitors of γD-Crystallin aggregation was confirmed by various experiments.
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Affiliation(s)
- Vishakha Goswami
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sony Moni Das
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shashank Deep
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Kuboi T, Chuck RS, Pineda R, Bhushan R, Goswamy A, Olson RJ. Subgroup Analysis from a Phase 1/2 Randomized Clinical Trial of 2.6% EDTA Ophthalmic Solution in Patients with Age-Related Cataract. Am J Ophthalmol 2024:S0002-9394(24)00349-0. [PMID: 39098755 DOI: 10.1016/j.ajo.2024.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/06/2024]
Abstract
PURPOSE To explore the efficacy of topical 2.6% EDTA ophthalmic solution (C-KAD) as a treatment to improve visual function for the subgroup of patients with loss of contrast sensitivity (CS) due to early-stage age-related cataract. DESIGN Subgroup analysis of randomized, double-blinded, placebo-controlled, multicenter phase 1/2 clinical trial data. METHODS Both eyes of subjects in the intent-to-treat population, with mesopic CS scores between 1 and 7 grating patches (range 0-9, each patch representing 0.15 logCS), at baseline in all five frequencies, were included. The proportion of eyes with clinically significant mesopic CS improvement and mean changes in mesopic CS at spatial frequencies between 1.5 to 18 cycles per degree (cpd), and summary metrics of area under the log CS function (AULCSF), were analyzed. Other exploratory outcomes analyzed included best-corrected visual acuity (BCVA) and lens density for a smaller subgroup of eyes for which Scheimpflug images were available. RESULTS Forty-one subject eyes were included in the subgroup analysis (C-KAD n = 21, placebo n = 20). The primary endpoint of the proportion of eyes with mesopic CS improvements ≥ 0.30 logCS (equivalent to 100% CS improvement) in at least two of the five spatial frequencies was significantly greater for C-KAD (66.7% versus 35.0% for placebo, P = .043) at Day 120. C-KAD met the primary protocol endpoint in this subgroup analysis. The proportion of eyes achieving ≥ 0.30 logCS improvement (mesopic) as measured in AULCSF was also significantly greater for C-KAD, with 42.9% compared to 15.0% for placebo (P = .050) at Day 120. The mean change in AULCSF (mesopic) was significantly larger for C-KAD, with 0.25 logCS improvement, versus placebo with 0.06 logCS improvement (P = .020) at Day 120. C-KAD also showed significant mesopic CS improvements at spatial frequencies 3 and 6 cpd, with 0.28 logCS (P = .004) and 0.31 logCS (P = .047) versus placebo at Day 120. Positive BCVA trends and statistical significance in lens density were also observed. CONCLUSIONS A significant treatment effect of C-KAD in visual function and vision quality was observed consistently. These promising results suggest a novel, non-invasive pharmacological treatment to improve vision in patients with early-stage cataract.
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Affiliation(s)
| | - Roy S Chuck
- Department of Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Montefiore Medical Center, Medical Arts Pavilion, 3400 Bainbridge Avenue, Bronx, NY 10467
| | - Roberto Pineda
- Massachusetts Eye and Ear, Harvard Medical School, 243 Charles Street, Boston, MA 02114
| | | | - Amit Goswamy
- Livionex Inc., PO Box 320928, Los Gatos, CA 95032
| | - Randall J Olson
- Department of Ophthalmology and Visual Sciences, John A. Moran Eye Center, University of Utah, 65 Mario Capecchi Drive, Salt Lake City, UT, 84132.
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Forte G, Battagliola ET, Malvasi M, Ruberti N, Daniele P, Mantovani A, Bocca B, Pacella E. Trace Element Concentration in the Blood and Aqueous Humor of Subjects with Eye Cataract. Biol Trace Elem Res 2024:10.1007/s12011-024-04207-3. [PMID: 38687421 DOI: 10.1007/s12011-024-04207-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 04/24/2024] [Indexed: 05/02/2024]
Abstract
Cataract, characterized by the opacification of the lens, is the leading cause of reversible blindness and visual impairment globally. The study aims to investigate the role of trace elements such as Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, and Zn in the development and severity of cataract. Elements were quantified by inductively coupled plasma mass spectrometry in blood and aqueous humor of 32 cataract cases and 27 controls living in the Latium region, Italy. The association between element concentration in blood and aqueous humor and cataract severity, gender, and age of subjects were also assessed. Results showed Cr levels significantly elevated in both blood and aqueous humor of cataract cases, with concentrations that increased with cataract severity. In addition, blood Pb levels were significantly higher in older cases and positively correlated with the age of cataract cases, while blood Co and Cu levels negatively correlated with cataract severity, suggesting changes in the levels of these elements. In conclusion, this study provides evidence of the involvement of specific elements in cataract development and severity, and the findings highlighted important avenues for future research. Understanding the biological mechanism underlying element-induced cataract may contribute to preventing cataractogenesis and providing targeted interventions.
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Affiliation(s)
- Giovanni Forte
- Department of Environment and Health, Italian National Institute of Health, 00161, Rome, Italy
| | | | - Mariaelena Malvasi
- Department of Sense Organs, University of Rome La Sapienza, 00161, Rome, Italy
| | - Niccolò Ruberti
- Department of Sense Organs, University of Rome La Sapienza, 00161, Rome, Italy
| | - Pierluigi Daniele
- Department of Sense Organs, University of Rome La Sapienza, 00161, Rome, Italy
| | | | - Beatrice Bocca
- Department of Environment and Health, Italian National Institute of Health, 00161, Rome, Italy
| | - Elena Pacella
- Department of Sense Organs, University of Rome La Sapienza, 00161, Rome, Italy.
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de Oliveira M, Melo ESDP, da Silva TC, Cardozo CML, Siqueira IV, Hamaji MP, Braga VT, Martin LFT, Fonseca A, do Nascimento VA. Quantification of Metal(loid)s in Lubricating Eye Drops Used in the Treatment of Dry Eye Disease. Molecules 2023; 28:6508. [PMID: 37764284 PMCID: PMC10536462 DOI: 10.3390/molecules28186508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/01/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
The aim of the study was to evaluate the presence of metal(loid)s in lubricating eye drops used in the treatment of dry eye disease. The concentrations of Al, As, Ba, Cd, Co, Cu, Cr, Pb, Fe, Mg, Mn, Mo, Ni, Se, V, and Zn were determined in 19 eye drop samples using inductively coupled plasma optical emission spectrometry (ICP OES). The limit of detection (LOD) and limit of quantification (LOQ) values for the quantified elements ranged from 0.0002-0.0363 (mg/L) and 0.0007-0.1211 (mg/L), respectively. High values of concentrations of Al (2.382 µg/g), As (0.204 µg/g), Ba (0.056 µg/g), Cd (0.051 µg/g), Co (1.085 µg/g), Cr (0.020 µg/g), Cu (0.023 µg/g), Fe (0.453 µg/g), Mg (24.284 µg/g), Mn (0.014 µg/g), Mo (0.046 µg/g), Ni (0.071 µg/g), Pb (0.049 µg/g), Se (0.365 µg/g), V (0.083 µg/g), and Zn (0.552 µg/g) were quantified in samples of eye drops with and without preservatives. The concentrations of As (5 samples) and Cd (3 samples) were higher than those allowed by the Brazilian Pharmacopoeia for impurities (parenteral use). The value of Co content (µg/g) in a sample was higher than the value established by the International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use (ICH Q3D (R2)) in the parenteral route. The daily eye drop instillation exposure (µg/day) was below the values from the parenteral-permitted daily exposure (PDE) set by the ICH Q3D guideline (R2). The presence of heavy metals in eye drops is an alert to regulatory agencies in several countries so that control and inspections can be carried out.
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Affiliation(s)
- Marcelo de Oliveira
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (M.d.O.); (C.M.L.C.); (V.T.B.)
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
| | - Elaine S. de Pádua Melo
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
| | - Thaís Carvalho da Silva
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
| | - Carla Maiara Lopes Cardozo
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (M.d.O.); (C.M.L.C.); (V.T.B.)
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
| | - Igor Valadares Siqueira
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
| | - Mariana Pereira Hamaji
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
| | - Vanessa Torres Braga
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (M.d.O.); (C.M.L.C.); (V.T.B.)
| | - Luiz Fernando Taranta Martin
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
| | - Alessandro Fonseca
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
| | - Valter Aragão do Nascimento
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (M.d.O.); (C.M.L.C.); (V.T.B.)
- Group of Spectroscopy and Bioinformatics Applied to Biodiversity and Health, Postgraduation Program in Health and Development in the Midwest Region, School of Medicine, Faculty of Medicine, Federal University of Mato Grosso do Sul, Campo Grande 79079-900, Brazil; (E.S.d.P.M.); (T.C.d.S.); (I.V.S.); (M.P.H.); (L.F.T.M.); (A.F.)
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Tovar-Ramírez ME, Schuth N, Rodríguez O, Kroll T, Saab-Rincon G, Costas M, Lampi K, Quintanar L. ATCUN-like Copper Site in βB2-Crystallin Plays a Protective Role in Cataract-Associated Aggregation. Inorg Chem 2023; 62:10592-10604. [PMID: 37379524 PMCID: PMC11156493 DOI: 10.1021/acs.inorgchem.3c00794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Cataract is the leading cause of blindness worldwide, and it is caused by crystallin damage and aggregation. Senile cataractous lenses have relatively high levels of metals, while some metal ions can directly induce the aggregation of human γ-crystallins. Here, we evaluated the impact of divalent metal ions in the aggregation of human βB2-crystallin, one of the most abundant crystallins in the lens. Turbidity assays showed that Pb2+, Hg2+, Cu2+, and Zn2+ ions induce the aggregation of βB2-crystallin. Metal-induced aggregation is partially reverted by a chelating agent, indicating the formation of metal-bridged species. Our study focused on the mechanism of copper-induced aggregation of βB2-crystallin, finding that it involves metal-bridging, disulfide-bridging, and loss of protein stability. Circular dichroism and electron paramagnetic resonance (EPR) revealed the presence of at least three Cu2+ binding sites in βB2-crystallin, one of them with spectroscopic features typical for Cu2+ bound to an amino-terminal copper and nickel (ATCUN) binding motif, which is found in Cu transport proteins. The ATCUN-like Cu binding site is located at the unstructured N-terminus of βB2-crystallin, and it could be modeled by a peptide with the first six residues in the protein sequence (NH2-ASDHQF-). Isothermal titration calorimetry indicates a nanomolar Cu2+ binding affinity for the ATCUN-like site. An N-truncated form of βB2-crystallin is more susceptible to Cu-induced aggregation and is less thermally stable, indicating a protective role for the ATCUN-like site. EPR and X-ray absorption spectroscopy studies reveal the presence of a copper redox active site in βB2-crystallin that is associated with metal-induced aggregation and formation of disulfide-bridged oligomers. Our study demonstrates metal-induced aggregation of βB2-crystallin and the presence of putative copper binding sites in the protein. Whether the copper-transport ATCUN-like site in βB2-crystallin plays a functional/protective role or constitutes a vestige from its evolution as a lens structural protein remains to be elucidated.
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Affiliation(s)
- Martin E. Tovar-Ramírez
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados (Cinvestav), Mexico City, 07360, Mexico
| | - Nils Schuth
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados (Cinvestav), Mexico City, 07360, Mexico
| | - Oscar Rodríguez
- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Mexico City, 04510, Mexico
| | - Thomas Kroll
- Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, 94025, CA, USA
| | - Gloria Saab-Rincon
- Department of Biocatalysis and Cellular Engineering, Instituto de Biotecnología, Universidad Nacional Autónoma de Mexico, Cuernavaca, Morelos, 62210, Mexico
| | - Miguel Costas
- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Mexico City, 04510, Mexico
| | - Kirsten Lampi
- Integrative Biosciences, Oregon Health & Science University, Portland, Oregon, 97239, United States
| | - Liliana Quintanar
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados (Cinvestav), Mexico City, 07360, Mexico
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Boix-Lemonche G, Nagymihaly RM, Lumi X, Petrovski G. The human lens is capable of trilineage differentiation towards osteo-, chondro-, and adipogenesis-a model for studying cataract pathogenesis. Front Bioeng Biotechnol 2023; 11:1164795. [PMID: 37324433 PMCID: PMC10264667 DOI: 10.3389/fbioe.2023.1164795] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/18/2023] [Indexed: 06/17/2023] Open
Abstract
The potential for trilineage differentiation of cells in tissues represents a model for studying disease pathogenesis and regeneration pathways. Human lens trilineage differentiation has not yet been demonstrated, and so has calcification and osteogenic differentiation of human lens epithelial cells in the whole human lens. Such changes can pose a risk for complications during cataract surgery. Human lens capsules (n = 9) from cataract patients undergoing uneventful surgery were trilineage-differentiated toward osteogenesis, chondrogenesis, and adipogenesis. Furthermore, whole human healthy lenses (n = 3) collected from cadaveric eyes were differentiated into bone and characterized by immunohistochemistry. The cells in the human lens capsules were capable of undergoing trilineage differentiation, while the whole human healthy lenses could undergo osteogenesis differentiation, expressing osteocalcin, collagen I, and pigment epithelium-derived factor. We, hereby, show an ex vivo model for cataract formation through different stages of opacification, as well as provide in vivo evidence from patients undergoing calcified lens extraction with bone-like consistency.
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Affiliation(s)
- Gerard Boix-Lemonche
- Department of Ophthalmology, Center for Eye Research and Innovative Diagnostics, Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | - Xhevat Lumi
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
- Eye Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Goran Petrovski
- Department of Ophthalmology, Center for Eye Research and Innovative Diagnostics, Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
- Department of Ophthalmology, University of Split School of Medicine and University Hospital Centre, Split, Croatia
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Xu B, Liu Z, Zhao J, Yu Z. Selenium intake help prevent age-related cataract formation: Evidence from NHANES 2001-2008. Front Nutr 2023; 10:1042893. [PMID: 36776608 PMCID: PMC9912772 DOI: 10.3389/fnut.2023.1042893] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 01/09/2023] [Indexed: 01/28/2023] Open
Abstract
Introduction Cataract is one of the leading causes of blindness and visual impairment, about 16 million people around the world. Trace elements play an important role in a variety of the processes in human body. This study aimed to investigate the association between daily dietary intake of trace elements and age-related cataract incidence based on data from the National Health and Nutrition Examination Survey (NHANES) 2001-2008. Methods Iron, zinc, copper, and selenium were conducted in this study among subjects aged 50 years and older for African Americans and 55 and older in US adults. Multivariate logistic regression analysis was used in different models to investigate the association of trace elements intake and cataract. Results After screening, 7,525 subjects were ultimately included in this study. A significant negative association was found between selenium intake and cataract incidence in adjusted models using multivariate logistic regression analysis (model 1: OR = 0.998, 95% CI = 0.997-1.000; model 2: OR = 0.997, 95% CI = 0.995-1.000; and model 3: OR = 0.998, 95% CI = 0.995-1.000). After dividing selenium intake into quintiles, significant negative associations between selenium intake and cataract were observed in the first quintile of model 3, the fourth and fifth quintiles of all models. In subgroup analyses adjusted for age and sex, a significant negative association was observed only in women aged 65-74 years. Discussion Our study points out that maintaining daily dietary selenium intake at higher levels is helpful for cataract prevention, and that increasing daily dietary selenium intake in American women aged 65-74 years may contribute to the prevention of age-related cataract. The intakes of iron, zinc, copper may not be associated with age-related cataract.
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Affiliation(s)
- Baiwei Xu
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China,Department of Ophthalmology, Eye Hospital of China Medical University, Shenyang, China,Key Lens Research Laboratory of Liaoning Province, Shenyang, China
| | - Zhongwei Liu
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China,Department of Ophthalmology, Eye Hospital of China Medical University, Shenyang, China,Key Lens Research Laboratory of Liaoning Province, Shenyang, China
| | - Jiangyue Zhao
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China,Department of Ophthalmology, Eye Hospital of China Medical University, Shenyang, China,Key Lens Research Laboratory of Liaoning Province, Shenyang, China,*Correspondence: Jiangyue Zhao,
| | - Ziyan Yu
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China,Department of Ophthalmology, Eye Hospital of China Medical University, Shenyang, China,Key Lens Research Laboratory of Liaoning Province, Shenyang, China,Ziyan Yu,
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