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Sung C, Chung CH, Lin FH, Chien WC, Sun CA, Tsao CH, Weng CE, Ng DY. A Population-Based Cohort Study of the Association between Visual Loss and Risk of Suicide and Mental Illness in Taiwan. Healthcare (Basel) 2023; 11:healthcare11101462. [PMID: 37239748 DOI: 10.3390/healthcare11101462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 04/27/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
The psychosocial and health consequences of ocular conditions that cause visual impairment (VI) are extensive and include impaired daily activities, social isolation, cognitive impairment, impaired functional status and functional decline, increased reliance on others, increased risk of motor vehicle accidents, falls and fractures, poor self-rated health, and depression. We aimed to determine whether VI increases the likelihood of a poor prognosis, including mental illness, suicide, and mortality over time. In this large, location, population-based, nested, cohort study, we used data from 2000 to 2015 in the Taiwan National Health Insurance Research Database (NHIRD), which includes diagnoses of all the patients with VI. Baseline features, comorbidities, and prognostic variables were evaluated using a 1:4-matched cohort analysis. Furthermore, comparisons were performed using Cox regression and Bonferroni-correction (for multiple comparisons) to study the association between VI and poor prognosis (mental illness, suicide). The study outcome was the cumulative incidence of poor prognosis among the visually impaired and controls. A two-tailed Bonferroni-corrected p < 0.001 was considered statistically significant. Among the 1,949,101 patients enlisted in the NHIRD, 271 had been diagnosed with VI. Risk factors for poor prognosis and the crude hazard ratio was 3.004 (95% confidence interval 2.135-4.121, p < 0.001). Participants with VI had an increased risk of poor prognosis according to the sensitivity analysis, with a poor prognosis within the first year and first five years. VI was associated with suicide and mental health risks. This study revealed that patients with VI have a nearly 3-fold higher risk of psychiatric disorders, including anxiety, depression, bipolar, and sleep disorders, than the general population. Early detection through comprehensive examinations based on increased awareness in the clinical context may help maintain visual function and avoid additional complications.
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Affiliation(s)
- Chieh Sung
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 11490, Taiwan
- Department of Nursing, Keelung Chang Gung Memorial Hospital, Keelung 20401, Taiwan
| | - Chi-Hsiang Chung
- School of Public Health, National Defense Medical Center, Taipei 11490, Taiwan
- Taiwanese Injury Prevention and Safety Promotion Association, Taipei 11490, Taiwan
| | - Fu-Huang Lin
- School of Public Health, National Defense Medical Center, Taipei 11490, Taiwan
| | - Wu-Chien Chien
- School of Public Health, National Defense Medical Center, Taipei 11490, Taiwan
- Taiwanese Injury Prevention and Safety Promotion Association, Taipei 11490, Taiwan
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 11490, Taiwan
- Department of Medical Research, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan
| | - Chien-An Sun
- Department of Public Health, College of Medicine, Fu-Jen Catholic University, New Taipei City 24205, Taiwan
- Big Data Research Center, College of Medicine, Fu-Jen Catholic University, New Taipei City 24205, Taiwan
| | - Chang-Huei Tsao
- Department of Medical Research, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan
- Department of Microbiology and Immunology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan
| | - Chih-Erh Weng
- Department of Nursing, Keelung Chang Gung Memorial Hospital, Keelung 20401, Taiwan
| | - Daphne Yih Ng
- Department of Family Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan
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Dvoriantchikova G, Seemungal RJ, Ivanov D. Development and epigenetic plasticity of murine Müller glia. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:1584-1594. [PMID: 31276697 DOI: 10.1016/j.bbamcr.2019.06.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/24/2019] [Accepted: 06/30/2019] [Indexed: 12/14/2022]
Abstract
The ability to regenerate the entire retina and restore lost sight after injury is found in some species and relies mostly on the epigenetic plasticity of Müller glia. To understand the role of mammalian Müller glia as a source of progenitors for retinal regeneration, we investigated changes in gene expression during differentiation of retinal progenitor cells (RPCs) into Müller glia and analyzed the global epigenetic profile of adult Müller glia. We observed significant changes in gene expression during differentiation of RPCs into Müller glia in only a small group of genes and found a high similarity between RPCs and Müller glia on the transcriptomic and epigenomic levels. Our findings also indicate that Müller glia are epigenetically very close to late-born retinal neurons, but not early-born retinal neurons. Importantly, we found that key genes required for phototransduction were highly methylated. Thus, our data suggest that Müller glia are epigenetically very similar to late RPCs; however, obstacles for regeneration of the entire mammalian retina from Müller glia may consist of repressive chromatin and highly methylated DNA in the promoter regions of many genes required for the development of early-born retinal neurons. In addition, DNA demethylation may be required for proper reprogramming and differentiation of Müller glia into rod photoreceptors.
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Affiliation(s)
- Galina Dvoriantchikova
- Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA.
| | - Rajeev J Seemungal
- Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA.
| | - Dmitry Ivanov
- Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136, USA.
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Bolt D. Caught in the chasm: Literary representation and suicide among people with impaired vision. BRITISH JOURNAL OF VISUAL IMPAIRMENT 2016. [DOI: 10.1177/0264619605056208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Both fictional and factual discourses have situated visual impairment in a causal relationship with suicide. The article compares samples of these discourses in order to suggest that the fiction may have some bearing on the facts. This alternative explanation becomes all the more thought-provoking when it is considered that not only visual impairment but visual restoration has been posited as a cause of suicide.
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Affiliation(s)
- David Bolt
- 29 Marsh Court, Maybank, Newcastle-Under-Lyme, Staffordshire, ST5 0TH, UK
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Thomas BJ, Sanders DS, Oliva MS, Orrs MS, Glick P, Ruit S, Chen W, Luoto J, Tasfaw AK, Tabin GC. Blindness, cataract surgery and mortality in Ethiopia. Br J Ophthalmol 2016; 100:1157-62. [PMID: 27267606 DOI: 10.1136/bjophthalmol-2015-308328] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 05/18/2016] [Indexed: 11/03/2022]
Abstract
PURPOSE To examine the relationships between blindness, the intervention of cataract surgery and all-cause mortality in a rural Ethiopian population. DESIGN Population-based, interventional prospective study. METHODS Community-based detection methods identified blind Ethiopian persons from two selected kebeles in Amhara region, Ethiopia. Data from 1201 blind patients were collected-628 cataract-blind and 573 blind from other conditions. Free cataract surgery was provided for consenting, cataract-blind patients. Follow-up surveys were conducted after 12 months (±1 month)-the main outcome measure for this report is all-cause mortality at 1 year. RESULTS During the follow-up period, 110 persons died from the selected population (mortality 9.2%), which consisted of those cataract-blind patients who received cataract surgery (N=461), cataract-blind patients who did not receive surgery (N=167) and all non-cataract-blind patients (N=573). Of the 461 patients who received cataract surgery, 44 patients died (9.5%). Of the 740 patients who did not receive surgery, 66 died (8.9%)-28 patients from the cohort of cataract-blind patients who did not receive surgery (16.8%) and 38 patients from the cohort of non-cataract blind (6.6%). Subgroup analysis revealed significantly increased odds of mortality for cataract-blind patients over 75 years of age who did not receive surgery and for unmarried patients of all age groups. CONCLUSIONS In this population, mortality risk was significantly elevated for older cataract-blind patients when compared with non-cataract-blind patients-an elevation of risk that was not noted in an age-matched cohort of cataract-blind patients who underwent cataract surgery as early as 1-year follow-up.
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Affiliation(s)
- Benjamin J Thomas
- Division of International Ophthalmology, Department of Ophthalmology, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA Himalayan Cataract Project, Waterbury, Vermont, USA
| | - David S Sanders
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Matthew S Oliva
- Himalayan Cataract Project, Waterbury, Vermont, USA Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Mark S Orrs
- Department of Political Science, Lehigh University, Bethlehem, Pennsylvania, USA School of International and Public Affairs, Columbia University, New York, New York, USA
| | | | - Sanduk Ruit
- Division of International Ophthalmology, Department of Ophthalmology, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA Division of International Ophthalmology, Department of Ophthalmology, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA
| | - Wei Chen
- Department of Epidemiology, University of Utah Medical Center, Salt Lake City, Utah, USA
| | - Jill Luoto
- RAND Corporation, Arlington, Virginia, USA
| | | | - Geoffrey C Tabin
- Division of International Ophthalmology, Department of Ophthalmology, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA Himalayan Cataract Project, Waterbury, Vermont, USA
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Lam BL, Christ SL, Lee DJ, Zheng DD, Arheart KL. Reported visual impairment and risk of suicide: the 1986-1996 national health interview surveys. ARCHIVES OF OPHTHALMOLOGY (CHICAGO, ILL. : 1960) 2008; 126:975-80. [PMID: 18625946 PMCID: PMC2630284 DOI: 10.1001/archopht.126.7.975] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To examine the relationship between reported visual impairment and suicide mortality. METHODS From 1986 through 1996, annual cross-sectional multistage area probability surveys of the US civilian noninstitutionalized population living at addressed dwellings were conducted by the National Center for Health Statistics. We performed mortality linkage through 2002 with the National Death Index of 137,479 adults 18 years and older. The relationships between reported visual impairment and suicide were examined using structural equation modeling. RESULTS The mean duration of follow-up was 11.0 years, and 200 suicide deaths were identified. After controlling for survey design, age, sex, race, marital status, number of nonocular health conditions, and self-rated health, the direct effect of visual impairment on death from suicide was elevated but not significant (hazard ratio, 1.50; 95% confidence interval, 0.90-2.49). The approximate indirect effect of visual impairment on death from suicide via poorer self-rated health (1.05; 1.02-1.08) or number of nonocular health conditions (1.12; 1.01-1.24) was significant. The total effect of visual impairment on death from suicide was elevated but not significant (1.64; 0.99-2.72). CONCLUSIONS Visual impairment may be associated with an increased risk of suicide through its effect on poor health. This suggests that improved treatment of visual impairment and factors causing poor health may potentially reduce suicide risk.
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Affiliation(s)
- Byron L Lam
- Bascom Palmer Eye Institute, University ofMiami School of Medicine, Miami, FL 33136, USA.
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