1
|
Mrugacz M, Pieńczykowska K, Bryl A. The Role of Vitamin D3 in Ocular Diseases. Nutrients 2024; 16:1878. [PMID: 38931233 PMCID: PMC11206323 DOI: 10.3390/nu16121878] [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: 05/06/2024] [Revised: 05/29/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Vitamin D3 plays a vital role in numerous physiological processes within the human body, including having a positive effect on eye health. It is renowned for its immunomodulatory, anti-inflammatory, antioxidant, and angiogenic properties. Its deficiency is evolving into a significant global challenge. In order to explain the connection between vitamin D3 and various ocular diseases, 84 relevant studies, mainly from the PubMed database, published in English between 1999 and 2024 were analyzed. Ocular tissues can activate and regulate vitamin D levels, which emphasizes the significance of this nutrient in maintaining eye homeostasis. While there is suggestive evidence for a probable association between vitamin D3 and ocular health, more robust research is needed to establish causation and inform clinical guidelines.
Collapse
Affiliation(s)
- Małgorzata Mrugacz
- Department of Ophthalmology and Eye Rehabilitation, Medical University of Bialystok, 15-089 Białystok, Poland;
| | - Kamila Pieńczykowska
- The Medical University of Bialystok Clinical Hospital, 15-089 Białystok, Poland;
| | - Anna Bryl
- Department of Ophthalmology and Eye Rehabilitation, Medical University of Bialystok, 15-089 Białystok, Poland;
| |
Collapse
|
2
|
Różanowska MB. Lipofuscin, Its Origin, Properties, and Contribution to Retinal Fluorescence as a Potential Biomarker of Oxidative Damage to the Retina. Antioxidants (Basel) 2023; 12:2111. [PMID: 38136230 PMCID: PMC10740933 DOI: 10.3390/antiox12122111] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/05/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
Lipofuscin accumulates with age as intracellular fluorescent granules originating from incomplete lysosomal digestion of phagocytosed and autophagocytosed material. The purpose of this review is to provide an update on the current understanding of the role of oxidative stress and/or lysosomal dysfunction in lipofuscin accumulation and its consequences, particularly for retinal pigment epithelium (RPE). Next, the fluorescence of lipofuscin, spectral changes induced by oxidation, and its contribution to retinal fluorescence are discussed. This is followed by reviewing recent developments in fluorescence imaging of the retina and the current evidence on the prognostic value of retinal fluorescence for the progression of age-related macular degeneration (AMD), the major blinding disease affecting elderly people in developed countries. The evidence of lipofuscin oxidation in vivo and the evidence of increased oxidative damage in AMD retina ex vivo lead to the conclusion that imaging of spectral characteristics of lipofuscin fluorescence may serve as a useful biomarker of oxidative damage, which can be helpful in assessing the efficacy of potential antioxidant therapies in retinal degenerations associated with accumulation of lipofuscin and increased oxidative stress. Finally, amendments to currently used fluorescence imaging instruments are suggested to be more sensitive and specific for imaging spectral characteristics of lipofuscin fluorescence.
Collapse
Affiliation(s)
- Małgorzata B. Różanowska
- School of Optometry and Vision Sciences, College of Biomedical and Life Sciences, Cardiff University, Maindy Road, Cardiff CF24 4HQ, Wales, UK;
- Cardiff Institute for Tissue Engineering and Repair (CITER), Redwood Building, King Edward VII Avenue, Cardiff CF10 3NB, Wales, UK
| |
Collapse
|
3
|
Murkey SP, Agarwal A, Pandit P, Kumar S, Jaiswal A. Unveiling the Spectrum of Ophthalmic Manifestations in Nutritional Deficiencies: A Comprehensive Review. Cureus 2023; 15:e50311. [PMID: 38205491 PMCID: PMC10777438 DOI: 10.7759/cureus.50311] [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: 10/30/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
This comprehensive review explores the intricate relationship between nutrition and ocular health, focusing on the crucial roles of essential nutrients like Vitamin A, Vitamin B1 (thiamine), Vitamin B12, Vitamin C, Vitamin D, Vitamin E, Zinc, and Folate (Vitamin B9) in maintaining eye well-being. Nutrient deficiencies have significant consequences, leading to various eye-related issues, from night blindness to age-related conditions such as cataracts and macular degeneration. It is imperative to address these deficiencies, emphasizing the importance of a well-rounded diet with the necessary nutrients. When necessary, supplementation and regular eye examinations are vital components for effectively monitoring ocular health. Public health campaigns and educational initiatives also play a key role in raising awareness about the profound impact of nutrition on eye health. Future research should explore personalized nutrition plans, nutrigenomics, longitudinal studies, and targeted nutritional interventions. Such investigations will not only enhance our understanding of this crucial connection but also have the potential to reduce the global burden of eye diseases.
Collapse
Affiliation(s)
- Siddhant P Murkey
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Akash Agarwal
- Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Pranam Pandit
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sunil Kumar
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Arpita Jaiswal
- Obstetrics and Gynaecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| |
Collapse
|
4
|
Seyyar SA, Tokuc EO. Evaluation of 25-Hydroxyvitamin D levels in patients with dermatochalasis. Int Ophthalmol 2022; 43:749-756. [PMID: 36036327 DOI: 10.1007/s10792-022-02474-4] [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: 04/20/2022] [Accepted: 08/20/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE To compare serum 25-hydroxyvitamin D (25(OH)D) levels of patients with dermatochalasis who underwent upper lid blepharoplasty and healthy controls. METHODS This retrospective comparative study included dermatochalasis patients who underwent upper lid blepharoplasty and age-and sex-matched controls from January 2019 to January 2021. The data, including comprehensive ophthalmological examination, internal medicine outpatient examination, and laboratory results of the dermatochalasis patients and healthy controls, were collected from the electronic patient records. Serum 25(OH)D, creatinine, calcium (Ca), phosphate (P), triglyceride (TG), low-density lipoprotein (LDL), and high-density lipoprotein (HDL) levels were evaluated and compared between the dermatochalasis patients and healthy controls. RESULT Of our participants, consisting of 46 patients with dermatochalasis and 52 healthy controls, 54 (55.10%) were female and 44 (44.90%) were male. A statistically significant difference was observed in vitamin D levels between the healthy and dermatochalasis groups (p ≤ 0.001). The percentage of individuals with vitamin D deficiency (< 20 ng/mL) was significantly higher in the dermatochalasis group (p = 0.001). In addition, the percentage of individuals with severe vitamin D deficiency (< 10 ng/mL) was again significantly higher in the dermatochalasis group (p = 0.001). The risk of dermatochalasis incidence was found to increase in cases of low vitamin D (OR = 1.210; p = 0.017). CONCLUSION Low serum 25(OH)D levels may play a role in the etiopathogenesis of dermatochalasis. Future research should include longitudinal studies and prospective clinical studies to investigate the mechanism responsible for the low vitamin D observed in dermatochalasis patients.
Collapse
Affiliation(s)
- Sevim Ayça Seyyar
- Kocaeli Derince Education and Research Hospital Ophthalmology Department , Lojman Sk İbni Sina, 41900, Derince, , Kocaeli, Turkey.
| | - Ecem Onder Tokuc
- Kocaeli Derince Education and Research Hospital Ophthalmology Department , Lojman Sk İbni Sina, 41900, Derince, , Kocaeli, Turkey
| |
Collapse
|
5
|
Vitamin D, the Vitamin D Receptor, Calcitriol Analogues and Their Link with Ocular Diseases. Nutrients 2022; 14:nu14112353. [PMID: 35684153 PMCID: PMC9183042 DOI: 10.3390/nu14112353] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/03/2022] [Accepted: 06/03/2022] [Indexed: 11/21/2022] Open
Abstract
The global prevalence of eye diseases continues to grow, bringing with it a reduction in the activity levels and quality of life of patients, and partial or complete blindness if left untreated. As such, there is considerable interest in identifying more effective therapeutic options and preventive agents. One such agent is vitamin D, known to have a range of anti-cancer, anti-angiogenic, anti-inflammatory and anti-oxidative properties, and whose deficiency is linked to the pathogenesis of a range of cardiovascular, cancer, and inflammatory diseases. This review presents the current stage of knowledge concerning the link between vitamin D and its receptor and the occurrence of eye disease, as well as the influence of analogues of calcitriol, an active metabolite of vitamin D. Generally, patients affected by various ocular disorders have vitamin D deficiency. In addition, previous findings suggest that vitamin D modulates the course of eye diseases and may serve as a marker, and that its supplementation could mitigate some disorders. However, as these studies have some limitations, we recommend further randomized trials to clarify the link between vitamin D and its activity with eye disease.
Collapse
|
6
|
Chan HN, Zhang XJ, Ling XT, Bui CHT, Wang YM, Ip P, Chu WK, Chen LJ, Tham CC, Yam JC, Pang CP. Vitamin D and Ocular Diseases: A Systematic Review. Int J Mol Sci 2022; 23:ijms23084226. [PMID: 35457041 PMCID: PMC9032397 DOI: 10.3390/ijms23084226] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 02/04/2023] Open
Abstract
The contributory roles of vitamin D in ocular and visual health have long been discussed, with numerous studies pointing to the adverse effects of vitamin D deficiency. In this paper, we provide a systematic review of recent findings on the association between vitamin D and different ocular diseases, including myopia, age-related macular degeneration (AMD), glaucoma, diabetic retinopathy (DR), dry eye syndrome (DES), thyroid eye disease (TED), uveitis, retinoblastoma (RB), cataract, and others, from epidemiological, clinical and basic studies, and briefly discuss vitamin D metabolism in the eye. We searched two research databases for articles examining the association between vitamin D deficiency and different ocular diseases. One hundred and sixty-two studies were found. There is evidence on the association between vitamin D and myopia, AMD, DR, and DES. Overall, 17 out of 27 studies reported an association between vitamin D and AMD, while 48 out of 54 studies reported that vitamin D was associated with DR, and 25 out of 27 studies reported an association between vitamin D and DES. However, the available evidence for the association with other ocular diseases, such as glaucoma, TED, and RB, remains limited.
Collapse
Affiliation(s)
- Hei-Nga Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
| | - Xiu-Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
| | - Xiang-Tian Ling
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
| | - Christine Huyen-Trang Bui
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
| | - Yu-Meng Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong, China;
| | - Wai-Kit Chu
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Li-Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Clement C. Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong, China
- Hong Kong Eye Hospital, Hong Kong, China
| | - Jason C. Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong, China
- Hong Kong Eye Hospital, Hong Kong, China
- Correspondence: (J.C.Y.); (C.-P.P.)
| | - Chi-Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; (H.-N.C.); (X.-J.Z.); (X.-T.L.); (C.H.-T.B.); (Y.-M.W.); (W.-K.C.); (L.-J.C.); (C.C.T.)
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
- Correspondence: (J.C.Y.); (C.-P.P.)
| |
Collapse
|
7
|
Pérez Serena A, Martínez Betancourt DP, González del Valle F, Ruiz-Moreno JM. Serum 25-hydroxy vitamin D levels in age-related macular degeneration. Int J Retina Vitreous 2022; 8:17. [PMID: 35255993 PMCID: PMC8899457 DOI: 10.1186/s40942-022-00368-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/20/2022] [Indexed: 12/28/2022] Open
Abstract
Background The aim of this study was to determine the 25-hydroxy vitamin D (25(OH)D) levels in age-related macular degeneration (AMD) patients. Methods Age-related macular degeneration (AMD) patients were classified into four groups: early AMD (N = 10), intermediate AMD (N = 12), advanced atrophic AMD (N = 19) and advanced neovascular AMD (N = 52) after undergoing fundus photography. Serum 25(OH)D levels of all subjects were evaluated. From a random control group of 326 patients whose 25(OH)D levels had been measured, a group of 93 were selected to match the age range of the AMD group. We measured 25(OH)D levels during the same period to rule out seasonal variation. Results A total of 93 AMD patients (36 males and 57 females) and 93 healthy individuals (39 males and 54 females) were enrolled in this study with the mean age of 78.96 ± 8.46 vs. 78.80 ± 8.35, respectively. The patients affected by AMD had statistically significant lower 25(OH)D levels (15 ± 10 ng/mL) than the healthy subjects control group (21 ± 14 ng/mL) (p = 0.004). However, the median 25(OH)D levels in early AMD, intermediate AMD, advanced atrophic AMD and advanced neovascular AMD (12.5 ± 7.3; 15 ± 11; 15 ± 8 and 17 ± 11.5, respectively) were not statistically significant (p = 0.442). Conclusion This study shows that patients affected by AMD had lower vitamin D levels compared to healthy subjects. Further research is necessary to investigate the possible association between 25(OH)D levels and AMD.
Collapse
|
8
|
Lazzara F, Conti F, Platania CBM, Eandi CM, Drago F, Bucolo C. Effects of Vitamin D 3 and Meso-Zeaxanthin on Human Retinal Pigmented Epithelial Cells in Three Integrated in vitro Paradigms of Age-Related Macular Degeneration. Front Pharmacol 2021; 12:778165. [PMID: 34803719 PMCID: PMC8602342 DOI: 10.3389/fphar.2021.778165] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 09/30/2021] [Indexed: 11/13/2022] Open
Abstract
Age-related macular degeneration (AMD) is a degenerative retinal disease and one of major causes of irreversible vision loss. AMD has been linked to several pathological factors, such as oxidative stress and inflammation. Moreover, Aβ (1-42) oligomers have been found in drusen, the extracellular deposits that accumulate beneath the retinal pigmented epithelium in AMD patients. Hereby, we investigated the hypothesis that treatment with 1,25(OH) 2D3 (vitamin D3) and meso-zeaxathin, physiologically present in the eye, would counteract the toxic effects of three different insults on immortalized human retinal pigmented epithelial cells (ARPE-19). Specifically, ARPE-19 cells have been challenged with Aβ (1-42) oligomers, H2O2, LPS, and TNF-α, respectively. In the present study, we demonstrated that the combination of 1,25(OH)2D3 and meso-zeaxanthin significantly counteracted the cell damage induced by the three insults, at least in these in vitro integrated paradigms of AMD. These results suggest that combination of 1,25(OH)2D3 and meso-zeaxathin could be a useful approach to contrast pathological features of AMD, such as retinal inflammation and oxidative stress.
Collapse
Affiliation(s)
- Francesca Lazzara
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - Federica Conti
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - Chiara Bianca Maria Platania
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - Chiara M Eandi
- Department of Ophthalmology, Fondation Asile des Aveugles, Jules Gonin Eye Hospital, University of Lausanne, Lausanne, Switzerland.,Department of Surgical Sciences, University of Torino, Torino, Italy
| | - Filippo Drago
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy.,Center for Research in Ocular Pharmacology-CERFO, University of Catania, Catania, Italy
| | - Claudio Bucolo
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy.,Center for Research in Ocular Pharmacology-CERFO, University of Catania, Catania, Italy
| |
Collapse
|
9
|
Hernandez M, Recalde S, González-Zamora J, Bilbao-Malavé V, Sáenz de Viteri M, Bezunartea J, Moreno-Orduña M, Belza I, Barrio-Barrio J, Fernandez-Robredo P, García-Layana A. Anti-Inflammatory and Anti-Oxidative Synergistic Effect of Vitamin D and Nutritional Complex on Retinal Pigment Epithelial and Endothelial Cell Lines against Age-Related Macular Degeneration. Nutrients 2021; 13:nu13051423. [PMID: 33922669 PMCID: PMC8170899 DOI: 10.3390/nu13051423] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/08/2021] [Accepted: 04/21/2021] [Indexed: 02/06/2023] Open
Abstract
Age-related macular degeneration (AMD) is a multifactorial disease of the retina featured by dysfunction of retinal pigmented epithelial (RPE) and loss of photoreceptor cells under oxidative stress and inflammatory conditions. Vitamin D and antioxidants have beneficial effects against retinal degenerative diseases, such as AMD. We investigated the impact of associating vitamin D (ND) with a nutritional antioxidant complex (Nutrof Total®; N) on oxidative stress and inflammation-like induced conditions by H2O2 and LPS, respectively, in human retinal epithelial (ARPE-19) and human retinal endothelial (HREC) cells. Application of either N or ND treatments to H2O2-induced media in ARPE-19 cells counteracted late apoptosis, attenuated oxidative DNA damage, and increased cell proliferation. Significant reduction in the expression levels of MCP1, IL-8, and IL6 cytokines was observed following application of either N or ND treatments under LPS-induced conditions in ARPE-19 cells and in MCP-1 and IL12p70 cytokine levels in HREC cells. ND and not N revealed significant downregulation of IFNγ in ARPE-19 cells, and of IL-6 and IL-18 in HREC cells. In conclusion, adding vitamin D to Nutrof Total® protects in a synergistic way against oxidative and inflammatory stress-induced conditions in retinal epithelial and endothelial cells.
Collapse
Affiliation(s)
- Maria Hernandez
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa Sanitaria en Enfermedades Oculares (Oftared), 31008 Pamplona, Spain
- Correspondence:
| | - Sergio Recalde
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa Sanitaria en Enfermedades Oculares (Oftared), 31008 Pamplona, Spain
| | - Jorge González-Zamora
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
| | - Valentina Bilbao-Malavé
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
| | - Manuel Sáenz de Viteri
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa Sanitaria en Enfermedades Oculares (Oftared), 31008 Pamplona, Spain
| | - Jaione Bezunartea
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
| | - Maite Moreno-Orduña
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
| | - Idoia Belza
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
| | - Jesús Barrio-Barrio
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
- Red Temática de Investigación Cooperativa Sanitaria en Enfermedades Oculares (Oftared), 31008 Pamplona, Spain
| | - Patricia Fernandez-Robredo
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa Sanitaria en Enfermedades Oculares (Oftared), 31008 Pamplona, Spain
| | - Alfredo García-Layana
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (S.R.); (J.G.-Z.); (V.B.-M.); (M.S.d.V.); (J.B.); (M.M.-O.); (I.B.); (J.B.-B.); (P.F.-R.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain
- Red Temática de Investigación Cooperativa Sanitaria en Enfermedades Oculares (Oftared), 31008 Pamplona, Spain
| |
Collapse
|
10
|
Pizza V, Montella S, Luigi Iorio E, Silvestro A, Agresta A, Somma SD, Capasso A. Vitamin D Serum Level in Elderly Patients with Alzheimer’s Disease: Preliminary Analysis from Cilento Region. Open Neurol J 2020. [DOI: 10.2174/1874205x02014010063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Introduction:
It is estimated that 46 million people in the world live with dementia and it is estimated that this number will increase 3-fold by 2050, being a leading cause of disability worldwide and major welfare and economic problem. The aging of the general population increase these problems, especially in regions, such as Cilento (Southern Italy), where we can register higher longevity. Preserving cognitive health is one of the most important aims of the current research, also through the identification of possible preventative life-style strategies. Recent meta-analyses suggest that low serum vitamin D concentrations could be associated with Alzheimer's disease (AD) and cognitive impairment. The specific role of Vitamin D, however, is still controversial. There is a growing evidence of high rates of vitamin D deficiency in the elderly and there is still much uncertainty about the cause of AD and other forms of dementia. On the other hand, there is no definitive evidence is not conclusive and vitamin D could be involved in many other physiological and pathological mechanisms.
Objective:
Our aim is to investigate vitamin D serum levels in a small preliminary sample of AD patients from the Cilento area.
Materials and Methods:
Patients were recruited from the AD centre of the San Luca Hospital, in Vallo della Lucania (SA). We enrolled 25 consecutive patients, 13 women, and 12 men. The mean age was 78.5±8.3 years, the mean duration of the disease was 3.5±1.8 years. The average school-age of the patients was 6.1 +/- 3.5 years, the average disease age was 6.3 +/- 1.7 years, the average basal Mini-Mental Score Examination (MMSE) score was 17.6 +/- 3.6. We determined serum 25-hydroxyvitamin D (25[OH]D) in 25 consecutive AD patients.
Results:
The mean vitamin D serum level was 17.9+7.9 UI/ml, denoting a state of insufficiency. Among our 25 patients, only 3 had serum level above 30 UI/ml; most patients (17 out of 25) showed serum level among 10 and 30 UI, while in 5 patients, serum level was less than 10 UI.
Conclusion:
Our preliminary data showed that Vitamin D deficiency was, in our patients, independently associated with AD, even in a special population, high rate of centenarians, like Cilento people. However, our preliminary study has different limitations. The vitamin D deficiency has been evaluated through a single time-point of measurement (or in different periods of the year), that may be susceptible to bias. Even the differences in age and level of education should be taken into consideration. Nevertheless, these data in the Cilento region are original (there are no similar reports to our knowledge). However, our results confirm the necessity of other study, and this result is an important opportunity to introduce a modifiable risk fact and, consequently, a new treatment for AD.
Collapse
|
11
|
Ferreira A, Silva N, Furtado MJ, Carneiro Â, Lume M, Andrade JP. Serum vitamin D and age-related macular degeneration: Systematic review and meta-analysis. Surv Ophthalmol 2020; 66:183-197. [PMID: 32768420 DOI: 10.1016/j.survophthal.2020.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/22/2020] [Accepted: 07/27/2020] [Indexed: 12/26/2022]
Abstract
Vitamin D may be implicated in the pathophysiology of several ocular diseases, but its role in age-related macular degeneration (AMD) remains uncertain. We sought to review systematically the existing evidence to evaluate the association between serum 25-hydroxyvitamin D 25(OH)D levels and AMD. A four-database search (PubMed, ISI Web of Science, Cochrane, and Scopus) was performed from inception to May 2020 using the MeSH terms: ("Macular Degeneration" OR "Age-related macular degeneration" OR "Retinal degeneration" OR "Macula lutea") AND ("Vitamin D" OR "Ergocalciferols" OR "Cholecalciferol" OR "25-Hydroxyvitamin D"). Random-effects meta-analyses were performed to compute 1) the standard mean difference in 25(OH)D concentration between AMD and non-AMD patients and 2) the AMD risk according to serum 25(OH)D levels. Eighteen observational studies enrolling 75,294 patients after a selection process among 375 original abstracts were selected. No significant differences were found, but there appears to exist a trend for late AMD among subjects with a serum 25(OH)D level below 50 nmol/L (odds ratio, 1.8; 95% confidence interval: 1.00-3.24, P = 0.05). There is no clear evidence of a definitive association between serum 25(OH)D and AMD risk, mainly due to heterogeneity in study procedures and lack of longitudinal designs.
Collapse
Affiliation(s)
- André Ferreira
- Service of Ophthalmology, Centro Hospitalar Universitário do Porto, Largo do Prof. Abel Salazar, Porto, Portugal; Unit of Anatomy, Department of Biomedicine, Faculty of Medicine of University of Porto, Al. Professor Hernâni Monteiro, Porto, Portugal.
| | - Nisa Silva
- Service of Ophthalmology, Centro Hospitalar Universitário do Porto, Largo do Prof. Abel Salazar, Porto, Portugal
| | - Maria João Furtado
- Service of Ophthalmology, Centro Hospitalar Universitário do Porto, Largo do Prof. Abel Salazar, Porto, Portugal
| | - Ângela Carneiro
- Service of Ophthalmology, Hospital São João, Al. Professor Hernâni Monteiro, Porto, Portugal; Department of Surgery and Physiology, Ophthalmology Unit, Faculty of Medicine of University of Porto, Al. Professor Hernâni Monteiro, Porto, Portugal
| | - Miguel Lume
- Service of Ophthalmology, Centro Hospitalar Universitário do Porto, Largo do Prof. Abel Salazar, Porto, Portugal
| | - José P Andrade
- Unit of Anatomy, Department of Biomedicine, Faculty of Medicine of University of Porto, Al. Professor Hernâni Monteiro, Porto, Portugal; Center of Health Technology and Services Research (CINTESIS), Faculty of Medicine of University of Porto, Al. Professor Hernâni Monteiro, Porto, Portugal
| |
Collapse
|