1
|
Liu S, Sun Q, Gu Q, Bao Y, Wang W, Qin X, Yuan X. Hypothyroidism is a causal determinant of age-related cataract risk in European population: a Mendelian randomization study. Front Endocrinol (Lausanne) 2024; 15:1254793. [PMID: 38375193 PMCID: PMC10874999 DOI: 10.3389/fendo.2024.1254793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 01/15/2024] [Indexed: 02/21/2024] Open
Abstract
Objective To determine whether there is a causal relationship between thyroid dysfunction and the risk of age-related cataract (ARC) in the European population. Design A two-sample Mendelian randomization (MR) study. Methods Hypothyroidism, hyperthyroidism, free thyroxine (fT4), and thyrotropin (TSH) were selected as exposures. The single nucleotide polymorphisms (SNP) of hypothyroidism and hyperthyroidism were obtained from the genome-wide association studies (GWAS) of the IEU database, including 337,159 subjects. Data for fT4 and TSH (72,167 subjects) were extracted from the ThyroidOmics Consortium. ARC was used as the outcome. The SNPs associated with ARC were selected from a GWAS of 216,362 individuals in the FinnGen database. The main method used was the inverse variance-weighted method, together with four complementary methods. Sensitivity analyses were performed using Cochran's Q test, MR-PRESSO, MR-Egger regression and leave-one-out test. MR pleiotropy was used to test for pleiotropy. MR Steiger test was used to test for the directionality. Results Two-sample MR analysis revealed a positive association between genetically predicted hypothyroidism and risk of ARC (OR = 2.501, 95% CI: 1.325-4.720; P = 0.004). Hyperthyroidism, circulating fT4 and TSH levels did not have a significant causal effect on ARC (P > 0.05). The results were robust and reliable, and no horizontal pleiotropy was found after sensitivity analyses. In the MR Steiger test, we found no reverse causal effects of hypothyroidism on the ARC (P <0.001). Conclusions Our study provides strong evidence that hypothyroidism is a causal determinant of ARC risk.
Collapse
Affiliation(s)
- Shu Liu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Qi Sun
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qingwei Gu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yujie Bao
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Wei Wang
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiaodong Qin
- Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Xinran Yuan
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| |
Collapse
|
2
|
Niazi S, Moshirfar M, Dastjerdi MH, Niazi F, Doroodgar F, Ambrósio R. Association between obesity and age-related cataract: an updated systematic review and dose-response meta-analysis of prospective cohort studies. Front Nutr 2024; 10:1215212. [PMID: 38357464 PMCID: PMC10866009 DOI: 10.3389/fnut.2023.1215212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 12/26/2023] [Indexed: 02/16/2024] Open
Abstract
Objective There are inconsistent findings on the association between obesity and age-related cataract (ARC). This systematic review was done to summarize available findings on the association between obesity [defined by body mass index (BMI)] and ARC by performing a dose-response meta-analysis on eligible prospective cohort studies. Methods We performed a systematic search in PubMed, Scopus, ISI Web of Knowledge, and Google Scholar until June 2022 to identify eligible publications. Results In total, 16 studies with a total sample size of 1,607,125 participants were included. Among all of these studies, there were 103,897 cases of ARC. In the follow-up periods ranging between 4 and 28 years, 4,870 cases of nuclear cataract, 1,611 cases of cortical cataract, and 1,603 cases of posterior subcapsular cataracts (PSC) were detected. By comparing the highest and lowest categories of BMI, we found that higher BMI was associated with an increased risk of ARC (RR: 1.18, 95% CI: 1.09-1.28) and PSC (RR: 1.44, 95% CI: 1.08-1.90). In the dose-response analysis, each 5 kg/m2 increase in BMI was associated with a 6 and 27% increased risk of ARC (RR: 1.06, 95% CI: 1.01-1.12) and PSC (RR: 1.27, 95% CI: 1.14-1.41), respectively. In addition, we found a positive association for cortical cataract among high-quality studies, in which higher BMI was associated with a 20% increased risk of cortical cataract (RR: 1.20, 95% CI: 1.02-1.42). In terms of nuclear cataract, we found no significant association either in the comparison between the highest and lowest categories of BMI or in the dose-response meta-analysis. Conclusion Obesity (defined by BMI) was associated with an increased risk of ARC, PSC, and cortical cataract in adults. However, such a positive association was not seen for nuclear cataract. PROSPERO registration CRD42022357132.
Collapse
Affiliation(s)
- Sana Niazi
- Translational Ophthalmology Research Center, Farabi Eye Hospital, Tehran, Iran
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Moshirfar
- John A. Moran Eye Center, University of Utah, Salt Lake City, UT, United States
| | - Mohammad H. Dastjerdi
- Department of Ophthalmology and Visual Science, Rutgers New Jersey Medical School, Newark, NJ, United States
| | - Feizollah Niazi
- Clinical Research Development Center, Shahid Modarres Educational Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farideh Doroodgar
- Translational Ophthalmology Research Center, Farabi Eye Hospital, Tehran, Iran
- Negah Specialty Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Renato Ambrósio
- Instituto de Olhos Renato Ambrósio, Rio de Janeiro, Brazil
- Rio de Janeiro Corneal Tomography and Biomechanics Study Group, Rio de Janeiro, Brazil
- BrAIN: Brazilian Artificial Intelligence Networking in Medicine, Rio de Janeiro, Brazil
- Department of Ophthalmology, Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil
- Department of Ophthalmology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| |
Collapse
|
3
|
Li Y, Li X, Jiang X, Wang Y, Wu T, Xia H, Li X. Comparison of dynamic visual acuity after implantation of toric bifocal or trifocal intraocular lens in age-related cataract patients: a randomized controlled trial. Front Neurosci 2023; 17:1287626. [PMID: 38178838 PMCID: PMC10765614 DOI: 10.3389/fnins.2023.1287626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 11/20/2023] [Indexed: 01/06/2024] Open
Abstract
Purpose To investigate the dynamic visual acuity (DVA) after implantation of toric bifocal or trifocal intraocular lens in age-related cataract patients. Methods This was a prospective randomized controlled trial. Of one hundred and twenty-four patients enrolled and randomized to receive unilateral phacoemulsification and toric trifocal (939 M/MP, Carl Zeiss Meditec AG, Jena, Germany) or toric bifocal (909 M, Carl Zeiss Meditec AG, Jena, Germany) intraocular lenses (IOL) implantation, ninety-nine patients completed the follow-up and were included in final analysis. Postoperatively, uncorrected and corrected distance (UDVA and CDVA), intermediate (UIVA and DCIVA) and near (UNVA and DCNVA) static visual acuity, manifest refraction and uncorrected and corrected distance DVA (UDDVA and CDDVA) at 20, 40 and 80 degrees per second (dps) were evaluated at one week, one month and three months. Results Three months postoperatively, the UDVA were 0.13 ± 0.11 and 0.14 ± 0.13 in the toric trifocal and bifocal IOL group, respectively. Significant better UIVA (trifocal, 0.17 ± 0.13 vs. bifocal, 0.23 ± 0.13, p = 0.037) and DCIVA (trifocal, 0.16 ± 0.11 vs. bifocal, 0.20 ± 0.12, p = 0.048) were observed in patients implanting toric trifocal than bifocal IOL at three months postoperatively. Patients implanted with toric bifocal IOL obtained better CDDVA at 80 dps (0.5607 ± 0.2032) than the trifocal group (0.6573 ± 0.2450, p = 0.039) at three months. Postoperative UDDVA and CDDVA at 20, 40 and 80 dps were significantly associated with age (p < 0.05, respectively) and postoperative static visual acuity (p < 0.05, respectively). Conclusion Toric trifocal IOL provides better static intermediate visual acuity, and toric bifocal IOL implantation provides better distance dynamic visual acuity at high speed.
Collapse
Affiliation(s)
- Yuanting Li
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerves, Beijing, China
| | - Xiaodan Li
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Xiaodan Jiang
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerves, Beijing, China
| | - Yuexin Wang
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerves, Beijing, China
| | - Tingyi Wu
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerves, Beijing, China
| | - Huaqin Xia
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerves, Beijing, China
| | - Xuemin Li
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerves, Beijing, China
| |
Collapse
|
4
|
Li P, Zhong R, Yu J, Wang Y, Wang C, Geng W, Bao S, Wang S, Zhang G, Zhu X, Ji M, Guan H. DCLRE1A Contributes to DNA Damage Repair and Apoptosis in Age-Related Cataracts by Regulating the lncRNA/miRNA/mRNA Axis. Curr Eye Res 2023; 48:992-1005. [PMID: 37503815 DOI: 10.1080/02713683.2023.2241159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 07/23/2023] [Indexed: 07/29/2023]
Abstract
PURPOSE Age-related cataract (ARC) is associated with the deregulation of transcription and defects in DNA repair in lens epithelial cells (LECs). DCLRE1A acted in DNA interstrand cross-links pathway to improve DNA replication and transcription. The aim of this study was to examined the further regulatory effect on DCLRE1A in the lncRNA-miRNA-mRNA network using a cell model of DCLRE1A overexpression (OE-DCLRE1A) in LECs. METHODS The expression level of DCLRE1A in ARC tissues and SRA01/04 cells after H2O2 treatment was measured as protein and mRNA by qRT-PCR and Western Blot(WB). CCK8, and TUNEL assays detected the change in cell viability and apoptosis, respectively. Furthermore, Immunofluorescence assays detect the expression of DNA damaged and repair marker proteins after OE-DCLRE1A. The global expression profiles of lncRNAs, miRNAs, and mRNAs were determined using high-throughput sequencing. KEGG and GO enrichment analysis disclose the possible function of differentially expressed (DE) lncRNA, miRNA, and mRNA. RESULTS The protein and mRNA of DCLRE1A were decreased in the anterior capsule of ARC and SRA01/04 cells treated by H2O2. OE-DCLRE1A improved damaged-DNA repair and enhanced cell viability against apoptosis after H2O2 treatment. Furthermore, we demonstrated the DE-molecules between the OE-DCLRE1A and control groups including 595 DE-lncRNAs, 221 DE-miRNAs, and 4718 DE-mRNAs. Next, bioinformatics analysis not only found that the DE-mRNAs are mainly involved in DNA repair-related signaling pathways after OE-DCLRE1A, but also screened two lncRNA-miRNA-mRNA networks focusing on DNA damage activated by OE-DCLRE1A, which involved 2 lncRNAs, 2 miRNAs, and 53 mRNAs. CONCLUSION We revealed that DCLRE1A activated the lncRNA/miRNA/DNA-repair network to take part in DNA repair processes, which not only represents a new regulatory mechanism employed by DCLRE1A but also uncovers the screening lncRNA may hold potential therapeutic values in ARC formation. However, these conclusions will need to be confirmed by future studies in vitro and in vivo models.
Collapse
Affiliation(s)
- Pengfei Li
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Renhao Zhong
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Jianfeng Yu
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Ying Wang
- Department of Ophthalmology, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Congyu Wang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Wenjing Geng
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Sijie Bao
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Siwen Wang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Guowei Zhang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Xi Zhu
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Min Ji
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Huaijin Guan
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, Jiangsu, China
| |
Collapse
|
5
|
Kanclerz P, Hecht I, Tuuminen R. Is Occasional Alcohol Drinking and Smoking Related to the Development of Age-Related Cataract? Invest Ophthalmol Vis Sci 2023; 64:8. [PMID: 37792333 PMCID: PMC10565702 DOI: 10.1167/iovs.64.13.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/03/2023] [Indexed: 10/05/2023] Open
Affiliation(s)
- Piotr Kanclerz
- Helsinki Retina Research Group, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Hygeia Clinic, Gdańsk, Poland
| | - Idan Hecht
- Helsinki Retina Research Group, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Ophthalmology, Shamir Medical Center, Tel Aviv, Israel
| | - Raimo Tuuminen
- Helsinki Retina Research Group, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- The Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
- Department of Ophthalmology, Kymenlaakso Central Hospital, Kotka, Finland
| |
Collapse
|
6
|
Ma X, Nan Y, Huang C, Li X, Yang Y, Jiang W, Ye M, Liu Q, Niu Y, Yuan L. Expression of αA-crystallin (CRYAA) in vivo and in vitro models of age-related cataract and the effect of its silencing on HLEB3 cells. Aging (Albany NY) 2023; 15:204754. [PMID: 37253645 DOI: 10.18632/aging.204754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 05/16/2023] [Indexed: 06/01/2023]
Abstract
AIM To investigate the expression of αA-crystallin (CRYAA) in age-related cataract (ARC) models and its role in lens epithelial cells (LECs). METHODS We used Flow cytometry to detect the apoptosis and cell cycle in HLEB3 cells and Real-time fluorescence quantitative polymerase chain reaction to detect the expression of CRYAA mRNA in HLEB3 and in rabbit lens. The expression of CRYAA in HLEB3 cells and rabbit lenses as well as the proteins related to apoptosis and autophagy in transfected cells were detected by western blotting. The lens structure in rabbits was investigated using hematoxylin-eosin staining. Protein thermostability assay was performed to detect the thermal stability of rabbit lens proteins. CCK- 8 assay was used to detect the viability of transfected cells, and the transfection was recorded by fluorescence photography. RESULTS Hydrogen peroxide can promote apoptosis and arrest the cell cycle in HLEB3 cells, and naphthalene can cause cataract formation and damage the structure of the lens in rabbits. Both ARC models can reduce the expression of CRYAA. The expression of CRYAA silencing increased apoptosis and autophagy in HLEB3 cells.
Collapse
Affiliation(s)
- Xiaoling Ma
- Ningxia Medical University Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yi Nan
- Ningxia Medical University Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Can Huang
- Ningxia Medical University Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Xiangyang Li
- School of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yifan Yang
- Ningxia Medical University Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Wenjie Jiang
- Ningxia Medical University Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Mengyi Ye
- School of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Qian Liu
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yang Niu
- Ningxia Medical University Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia, China
- School of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Ling Yuan
- Ningxia Medical University Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia, China
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| |
Collapse
|
7
|
Zhang W, Wu A, Zhang G, Ding X, Kang L, Zhou T, Ji M, Guan H. Ubiquitination of Ku70 by Parkin promotes apoptosis of lens epithelial cells. FEBS J 2023. [PMID: 37000041 DOI: 10.1111/febs.16784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 03/18/2023] [Accepted: 03/27/2023] [Indexed: 04/01/2023]
Abstract
Oxidative damage-triggered apoptosis in lens epithelial cells (LECs) is considered as a main risk factor in the pathogenesis of age-related cataract (ARC). Ku70 is a key factor in the DNA repair process of double-strand breaks. Herein, we aim to investigate the role of Ku70 and its related E3 ubiquitin ligase in LECs apoptosis. The levels of Ku70 in the anterior lens capsules of human cataracts and Emory mice were declined compared to controls. H2 O2 treatment resulted in decreased expression of Ku70 through accelerating Ku70 ubiquitination. Parkin, an E3 ubiquitin ligase, could interact with Ku70 and promote the ubiquitination and degradation of this protein. In addition, ubiquitinated Ku70 was regulated by ubiquitin-proteasome, autophagy-lysosome and mitophagy pathways. Ectopic expression of Ku70 protected SRA01/04 cells from H2 O2 -induced apoptosis, whereas silencing Ku70 exhibited the opposite trend. Co-transfected with Parkin, non-ubiquitinatable Ku70 mutant could maintain its anti-apoptosis ability, but wildtype Ku70 failed. Moreover, Ku70 might facilitate mitochondrial fusion by increasing the expression of mitofusin 1 and 2. Our study revealed that Parkin-mediated Ku70 ubiquitination facilitated H2 O2 -induced lens epithelial cells apoptosis through alleviating mitochondrial fusion, which could provide potential targets for ARC treatment.
Collapse
Affiliation(s)
- Wenyi Zhang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Anran Wu
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Guowei Zhang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Xuemeng Ding
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Lihua Kang
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Tianqiu Zhou
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Min Ji
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Huaijin Guan
- Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| |
Collapse
|
8
|
Tanito M, Takayanagi Y, Ishida A, Ichioka S, Takai Y, Kaidzu S. Linear association between aging and decreased blood thiol antioxidant activity in patients with cataract. J Clin Biochem Nutr 2023; 72:54-60. [PMID: 36777073 PMCID: PMC9899924 DOI: 10.3164/jcbn.22-66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 09/03/2022] [Indexed: 11/07/2022] Open
Abstract
We comprehensively assessed the roles of systemic redox markers by including both prooxidant and antioxidant markers in 121 Japanese subjects (mean ± SD age, 70 ± 11 years; 38 men) with no ocular pathology except age-related cataract. Serum levels of lipid peroxides, ferric-reducing activity, and thiol antioxidant activity were measured using the diacron reactive oxygen metabolite (dROM), biologic antioxidant potential (BAP), and sulfhydryl (SH) tests, respectively, using a free-radical analyzer. Univariate analyses suggested that older age, higher pulse rate, worse best-corrected visual acuity (BCVA), higher intraocular pressure, and higher cataract grade were associated with a lower SH level. Scatterplots revealed virtually linear associations between age and the SH level (estimate, -4.4 μM/year). Multivariate analyses suggested that older age, higher systolic blood pressure, and worse BCVA were associated with a lower SH level. Neither the univariate nor multivariate analyses, except between female sex and higher dROM level, were associated with the dROM or BAP level. A lower serum SH level was the driver of aging itself and age-related decline in VA due to cataract. The serum SH level may be an excellent predictor of aging status in each subject.
Collapse
Affiliation(s)
- Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan,To whom correspondence should be addressed. E-mail:
| | - Yuji Takayanagi
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan,Department of Ophthalmology, Seirei Hamamatsu General Hospital, 2-12-12 Naka-ku Sumiyoshi, Hamamatsu, Shizuoka 430-8558, Japan
| | - Akiko Ishida
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
| | - Sho Ichioka
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
| | - Yasuyuki Takai
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan,Department of Ophthalmology, Masuda Red Cross Hospital, I103-1 Otoyoshi, Masuda, Shimane 698-8501, Japan
| | - Sachiko Kaidzu
- Department of Ophthalmology, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
| |
Collapse
|
9
|
Wu B, Sun Y, Hou J. CircMED12L Protects Against Hydrogen Peroxide-induced Apoptotic and Oxidative Injury in Human Lens Epithelial Cells by miR-34a-5p/ALCAM axis. Curr Eye Res 2022; 47:1631-1640. [PMID: 36218352 DOI: 10.1080/02713683.2022.2134427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
PURPOSE Cataract is the leading cause of visual impairment and reversible blindness. Despite advances in surgical removal of cataracts, cataract continues to be a leading public-health issue due to the complications after surgery. Circular RNAs (circRNAs) have been showed to be implicated in the pathophysiology of age-related cataract (ARC). Herein, this work elucidated the role and mechanism of circMED12L in the process of ARC. METHODS Human lens epithelial cells (HLECs) were exposed to hydrogen peroxide (H2O2) in experimental groups. Levels of genes and proteins were measured by qRT-PCR and western blotting. Cell growth was evaluated by Cell Counting Kit-8 (CCK-8) assay and flow cytometry, respectively. The oxidative stress was assessed by detecting the activity of malondialdehyde, catalase, and superoxide dismutase. The interaction between miR-34a-5p and circMED12L or ALCAM (activated leukocyte cell adhesion molecule) was validated using dual-luciferase reporter and RNA immunoprecipitation assays. RESULTS CircMED12L expression was lower in the lens epithelium of ARC patients and H2O2-induced HLECs compared with the normal individuals and untreated cells. Functionally, forced expression of circMED12L could alleviate H2O2-induced viability inhibition, as well as apoptotic and oxidative injury in HLECs. Mechanistically, circMED12L/miR-34a-5p/ALCAM constituted a feedback loop in HLECs. MiR-34a-5p was increased, while ALCAM was decreased in ARC patients and H2O2-induced HLECs. High expression of miR-34a-5p reversed the protective effects of circMED12L on HLECs under H2O2 treatment. Besides, inhibition of miR-34a-5p could repress H2O2-induced apoptotic and oxidative injury in HLECs, which were abolished by subsequent ALCAM knockdown. CONCLUSION Overexpression of circMED12L could protect against H2O2-induced apoptosis and oxidative stress in HLECs by miR-34a-5p/ALCAM axis.
Collapse
Affiliation(s)
- Baohua Wu
- Department of Ophthalmology, Lanzhou Purui Ophthalmology Hospital, Lanzhou, China
| | - Yan Sun
- Department of Ophthalmology, Lanzhou Purui Ophthalmology Hospital, Lanzhou, China.,Department of Ophthalmology, Gansu Rehabilitation Center Hospital, Lanzhou, China.,Clinical School of Traditional Chinese, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jingmei Hou
- Department of Ophthalmology, Lanzhou Purui Ophthalmology Hospital, Lanzhou, China.,Department of Ophthalmology, Gansu Rehabilitation Center Hospital, Lanzhou, China
| |
Collapse
|
10
|
Quinlan RA, Clark JI. Insights into the biochemical and biophysical mechanisms mediating the longevity of the transparent optics of the eye lens. J Biol Chem 2022; 298:102537. [PMID: 36174677 PMCID: PMC9638808 DOI: 10.1016/j.jbc.2022.102537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 11/18/2022] Open
Abstract
In the human eye, a transparent cornea and lens combine to form the "refracton" to focus images on the retina. This requires the refracton to have a high refractive index "n," mediated largely by extracellular collagen fibrils in the corneal stroma and the highly concentrated crystallin proteins in the cytoplasm of the lens fiber cells. Transparency is a result of short-range order in the spatial arrangement of corneal collagen fibrils and lens crystallins, generated in part by post-translational modifications (PTMs). However, while corneal collagen is remodeled continuously and replaced, lens crystallins are very long-lived and are not replaced and so accumulate PTMs over a lifetime. Eventually, a tipping point is reached when protein aggregation results in increased light scatter, inevitably leading to the iconic protein condensation-based disease, age-related cataract (ARC). Cataracts account for 50% of vision impairment worldwide, affecting far more people than other well-known protein aggregation-based diseases. However, because accumulation of crystallin PTMs begins before birth and long before ARC presents, we postulate that the lens protein PTMs contribute to a "cataractogenic load" that not only increases with age but also has protective effects on optical function by stabilizing lens crystallins until a tipping point is reached. In this review, we highlight decades of experimental findings that support the potential for PTMs to be protective during normal development. We hypothesize that ARC is preventable by protecting the biochemical and biophysical properties of lens proteins needed to maintain transparency, refraction, and optical function.
Collapse
Affiliation(s)
- Roy A Quinlan
- Department of Biosciences, Durham University, South Road Science Site, Durham, United Kingdom; Department of Biological Structure, University of Washington, Seattle, Washington, USA.
| | - John I Clark
- Department of Biological Structure, University of Washington, Seattle, Washington, USA.
| |
Collapse
|
11
|
Tan QQ, Lewis JS, Lan CJ, Liao X, Tang XL, Wang J, Aljohani S, Scheiman MM. Cataract surgery is not associated with post-operative binocular vision anomalies in age-related cataract patients. Ophthalmic Physiol Opt 2022; 42:998-1008. [PMID: 35690924 PMCID: PMC9378533 DOI: 10.1111/opo.13012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/30/2022] [Accepted: 05/02/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE To compare the binocular vision status of patients pre- and post-cataract surgery, and to investigate the risk factors for patients who develop binocular vision anomalies post-surgery. METHODS A prospective study of patients (≥50 years) who elected to undergo bilateral cataract surgery was implemented. A comprehensive binocular vision test battery including stereopsis, ocular alignment, fusional vergence, vergence facility, near point of convergence and the Convergence Insufficiency Symptom Survey (CISS) was administered before the first surgery and at the third visit after surgery on the second eye. A detailed diagnostic classification protocol was applied to identify the presence of binocular vision anomalies pre- and post-surgery. RESULTS Seventy-three participants were included at baseline, 24 (33%) of whom were diagnosed with non-strabismic binocular vision anomalies (NSBVA), mainly convergence insufficiency (18/73, 25%). Fifty-one participants completed the post-operative evaluation, 17 (33%) of whom had NSBVA pre-surgery and 13 (26%) post-surgery (p = 0.48). There were a number of conversions from NSBVA to normal binocular vision and vice versa. Logistic regression showed that the adjusted odds ratio of pre-existing NSBVA diagnosis for predicting the risk of post-operative NSBVA was 6.37 (p < 0.01). There were no significant changes in most binocular vision measures post-surgery, except for a significant improvement in the CISS score (p < 0.01, Cohen's d = 0.83). CONCLUSIONS Binocular vision anomalies, especially convergence insufficiency, are prevalent in the age-related cataract population. Cataract surgery does not appear to be a significant risk factor for the development of new binocular vision anomalies. A pre-existing binocular vision anomaly is the main risk factor for predicting a post-operative binocular vision anomaly in this population.
Collapse
Affiliation(s)
- Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
- Graduate Programs in Biomedicine, Salus University, Elkins Park, Pennsylvania, USA
| | - James S Lewis
- Pennsylvania College of Optometry at Salus University, Elkins Park, Pennsylvania, USA
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xiao-Li Tang
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Jingyun Wang
- State University of New York College of Optometry, New York, New York, USA
| | - Saeed Aljohani
- Department of Optometry, College of Applied Medical Sciences, Qassim University, Saudi Arabia
| | - Mitchell M Scheiman
- Pennsylvania College of Optometry at Salus University, Elkins Park, Pennsylvania, USA
| |
Collapse
|
12
|
Zhang G, Kang L, Li P, Ran Q, Chen X, Ji M, Guan H. Genome-wide repertoire of transfer RNA-derived fragments in a mouse model of age-related cataract. Curr Eye Res 2022; 47:1397-1404. [PMID: 35930684 DOI: 10.1080/02713683.2022.2110263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Purpose To investigate the roles of tRNA-derived small RNAs (tsRNAs) containing transfer RNA-derived fragments (tRFs) and tRNA halves in age-related cataract (ARC). Methods: Lens capsule tissue from Emory mice at 3 months and 8 months of age were dissected for integrated tsRNA and gene transcriptome sequencing. Quantitative real-time PCR assay (qRT-PCR) was perform for validating sequencing results. Bioinformatics analysis was constructed to reveal the roles of tsRNAs. Results: A total of 422 DE tsRNAs were changed, in which 156 were elevated while 266 were declined in 8-month-old mice. Subsequently, the gene sequencing data exhibited 375 upregulated and 456 downregulated DE genes. Validation by qRT-PCR in 5 selected upregulated tRFs was consistent with tsRNAs sequencing results. Moreover, bioinformatics analysis identified 25 downregulated target genes of the 5 validated tRFs. Furthermore, GO analysis revealed that these target genes were mainly enriched in camera-type eye development, sensory organ development and so on. Conclusion: Our study provide a novel perspective for the role of tsRNAs in pathogenesis of ARC, and thus therapeutic potential targets for ARC.
Collapse
Affiliation(s)
- Guowei Zhang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Lihua Kang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Pengfei Li
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Qiliang Ran
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xiang Chen
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Min Ji
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Huaijin Guan
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| |
Collapse
|
13
|
Chen X, Zhang G, Li P, Yu J, Kang L, Qin B, Wang Y, Wu J, Wang Y, Zhang J, Qin M, Guan H. SYVN1-mediated ubiquitination and degradation of MSH3 promotes the apoptosis of lens epithelial cells. FEBS J 2022; 289:5682-5696. [PMID: 35334159 DOI: 10.1111/febs.16447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 11/24/2021] [Accepted: 03/24/2022] [Indexed: 12/29/2022]
Abstract
The pathology of age-related cataract (ARC) mainly involves the misfolding and aggregation of proteins, especially oxidative damage repair proteins, in the lens, induced by ultraviolet-B (UVB). MSH3, as a key member of the mismatch repair family, primarily maintains genome stability. However, the function of MSH3 and the mechanism by which cells maintain MSH3 proteostasis during cataractogenesis remains unknown. In the present study, the protein expression levels of MSH3 were found to be attenuated in ARC specimens and SRA01/04 cells under UVB exposure. The ectopic expression of MSH3 notably impeded UVB-induced apoptosis, whereas the knockdown of MSH3 promoted apoptosis. Protein half-life assay revealed that UVB irradiation accelerated the decline of MSH3 by ubiquitination and degradation. Subsequently, we found that E3 ubiquitin ligase synoviolin (SYVN1) interacted with MSH3 and promoted its ubiquitination and degradation. Of note, the expression and function of SYVN1 were contrary to those of MSH3 and SYVN1 regulated MSH3 protein degradation via the ubiquitin-proteasome pathway and the autophagy-lysosome pathway. Based on these findings, we propose a mechanism for ARC pathogenesis that involves SYVN1-mediated degradation of MSH3 via the ubiquitin-proteasome pathway and the autophagy-lysosome pathway, and suggest that interventions targeting SYVN1 might be a potential therapeutic strategy for ARC.
Collapse
Affiliation(s)
- Xiaojuan Chen
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Guowei Zhang
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Pengfei Li
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Jianfeng Yu
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Lihua Kang
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Bai Qin
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Ying Wang
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Jian Wu
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Yong Wang
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Junfang Zhang
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Miaomiao Qin
- Eye Institute, Affiliated Hospital of Nantong University, China
| | - Huaijin Guan
- Eye Institute, Affiliated Hospital of Nantong University, China
| |
Collapse
|
14
|
Jiang S, Jia Y, Gao Z. LncRNA KCNQ1OT1 promotes apoptosis and oxidative stress of human lens epithelial cells through epigenetic regulation of WRN. Curr Eye Res 2022; 47:I-X. [PMID: 35179402 DOI: 10.1080/02713683.2022.2026975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
PURPOSE Long non-coding RNA KCNQ1OT1 is fundamental to age-related cataract (ARC), whereas the underlying mechanism is still unknown. Here, we explored the possible mechanism of KCNQ1OT1 in ARC. METHODS The expression of KCNQ1OT1 in ARC patients and H2O2-treated human lens epithelial cell line SRA01/04 was detected. Gene and protein expression were examined by quantitative real-time PCR and western blot. Cell viability and apoptosis were detected by CCK-8 assay and flow cytometry. The content of reactive oxygen species (ROS) was assessed by fluorescent probe DCFH-DA. The relationship among KCNQ1OT1, G9a, H3K9me1/2 and WRN was verified by RNA pull down and Chromatin immunoprecipitation. RESULTS KCNQ1OT1 was up-regulated in the anterior lens capsule tissues of ARC patients and H2O2-treated SRA01/04 cells. KCNQ1OT1 overexpression suppressed cell viability and facilitated apoptosis in H2O2-treated SRA01/04 cells. KCNQ1OT1 up-regulation enhanced the levels of ROS and malondialdehyde (MDA), and reduced the levels of superoxide dismutase (SOD) and catalase (CAT) in H2O2-treated SRA01/04 cells. WRN up-regulation led to a result opposite to KCNQ1OT1 overexpression. The influence of WRN up-regulation on cell viability, apoptosis and oxidative stress of SRA01/04 cells was rescued by KCNQ1OT1 overexpression. Additionally, KCNQ1OT1 interacted with G9a. Both G9a and H3K9me1/2 interacted with WRN promoter. G9a deficiency significantly enhanced WRN expression and repressed H3K9me1/2 expression in SRA01/04 cells, which was abrogated by KCNQ1OT1 up-regulation. CONCLUSION This study demonstrated that KCNQ1OT1 promoted apoptosis and oxidative stress of human LECs through G9a-driven epigenetic regulation of WRN. This work highlights a novel lncRNA involving key regulators of ARC.
Collapse
Affiliation(s)
- Shengqun Jiang
- Department of Ophthalmology, The First Affiliated Hospital of Bengbu Medical College, No.287 Changhuai Road, Bengbu 233004, Anhui Province, China
| | - Yanwen Jia
- Eye Institute, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, No 29 Xianglong Lane, Changzhou 211166, Jiangsu Province, China
| | - Ziqing Gao
- Department of Ophthalmology, The First Affiliated Hospital of Bengbu Medical College, No.287 Changhuai Road, Bengbu 233004, Anhui Province, China
| |
Collapse
|
15
|
Xu Y, Zheng Y, Shen P, Zhou L. Role of long noncoding RNA KCNQ1 overlapping transcript 1/microRNA-124-3p/BCL-2-like 11 axis in hydrogen peroxide (H 2O 2)-stimulated human lens epithelial cells. Bioengineered 2022; 13:5035-5045. [PMID: 35170373 PMCID: PMC8973598 DOI: 10.1080/21655979.2022.2032966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Age-related cataract (ARC) is one of the most common causes of vision loss in aging people. This research analyzed the functions and mechanism of long noncoding RNA KCNQ1 overlapping transcript 1 (KCNQ1OT1) in hydrogen peroxide (H2O2)-stimulated human lens epithelial cells (SRA01/04 cells) in ARC. SRA01/04 cells were stimulated with 200 µM H2O2 to establish oxidative damage in the ARC model. A MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and flow cytometry analysis were conducted to evaluate cell growth and apoptosis. The relevance between KCNQ1OT1 and microRNA (miR)-124-3p or miR-124-3p and BCL-2-like 11 (BCL2L11) was measured through Starbase and a dual luciferase reporter gene assay. The levels of KCNQ1OT1 and miR-124-3p were assessed via quantitative real-time polymerase chain reaction (qRT-PCR). We observed that KCNQ1OT1 was over-expressed and miR-124-3p was low-expressed in H2O2-stimulated SRA01/04 cells. KCNQ1OT1 interacted with miR-124-3p and negatively mediated its levels. In addition, KCNQ1OT1-siRNA reversed the effects of H2O2 on SRA01/04 cells, evidenced by enhanced cell viability, inhibited apoptotic cells, promoted Bcl-2 expression, and reduced Bax levels. Nevertheless, these observations were inverted after miR-124-3p inhibitor treatment. Likewise, miR-124-3p mimic had a protective effect on H2O2-stimulated SRA01/04 cells. Our data suggested that BCL2L11 targeted miR-124-3p directly. In summary, the data indicated that lncRNA KCNQ1OT1 down-regulation protected SRA01/04 cells from oxidative stress stimulated damage via the miR-124-3p/BCL2L11 pathway.
Collapse
Affiliation(s)
- Yue Xu
- Department of Ophthalmology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Yanhua Zheng
- Department of Ophthalmology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Pincheng Shen
- Department of Ophthalmology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Liping Zhou
- Department of Ophthalmology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| |
Collapse
|
16
|
Karesvuo P, Elbaz U, Achiron A, Hecht I, Kaarniranta K, Tuuminen R. Effect of cataract surgery on wet age-related macular degeneration activity. Acta Ophthalmol 2022; 100:e262-e269. [PMID: 33838002 DOI: 10.1111/aos.14864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 03/01/2021] [Accepted: 03/16/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Wet age-related macular degeneration (AMD) and age-related cataract are often coexisting causes of visual impairment. Yet, the timing of cataract surgery in wet AMD patients is controversial. METHODS One hundred and eleven eyes of 111 patients with wet AMD underwent cataract surgery at Helsinki University Hospital in Finland during 2014-2018. Best-corrected visual acuity and central subfield macular thickness (CSMT) were analysed at the time of wet AMD diagnosis, at the last recording prior to cataract surgery and at the first recording and at 1 year after surgery. The cumulative number of antivascular endothelial growth factor (anti-VEGF) injections at surgery, systemic and topical medication and postoperative anti-VEGF burden were recorded. RESULTS Mean age was 78.9 ± 5.6 years at the time of surgery. Central subfield macular thickness (CSMT) significantly decreased (280.1 ± 75.0 µm preoperatively to 268.6 ± 67.6 µm at the first postoperative recording, p = 0.001, and to 265.9 ± 67.9 µm at 1 year, p = 0.003), visual acuity improved (0.70 ± 0.46 logMAR units preoperatively to 0.39 ± 0.40 at the first postoperative recording, and to 0.33 ± 0.34 at 1 year, p < 0.001 for both) and anti-VEGF treatment intervals lengthened despite the surgery (6.53 ± 2.08 weeks prior to surgery to 7.03 ± 2.23 weeks at 1 year, p = 0.246, and to 7.05 ± 2.57 weeks at the last documented visit, p = 0.035). A CSMT increase of over 30% from the preoperative values was seen in only one case (1 out of 111 eyes, 0.9%). Macular status at surgery, wet AMD subtype, comorbidity of type II diabetes, systemic drugs and topical anti-inflammatory medication were not associated with macular changes nor with treatment intervals after surgery. The cumulative number of anti-VEGF injections correlated neither with CSMT change postoperatively (r = -0.051, p = 0.619) nor with CSMT change at 1 year (r = 0.091, p = 0.426). CONCLUSION Satisfactory visual outcomes and controlled disease activity were seen in patients with wet AMD undergoing cataract surgery. We found no evidence to support delaying surgery in patients who require it.
Collapse
Affiliation(s)
- Petteri Karesvuo
- Helsinki Retina Research Group University of Helsinki Helsinki Finland
- Department of Ophthalmology Helsinki University Hospital Helsinki Finland
| | - Uri Elbaz
- Sackler School of Medicine Tel Aviv University Tel Aviv Israel
- Department of Ophthalmology Rabin Medical Center Petach‐Tikva, Tel Aviv Israel
| | - Asaf Achiron
- Sackler School of Medicine Tel Aviv University Tel Aviv Israel
- Department of Ophthalmology Wolfson Medical Center Holon Israel
- Bristol Eye Hospital Bristol UK
| | - Idan Hecht
- Helsinki Retina Research Group University of Helsinki Helsinki Finland
- Sackler School of Medicine Tel Aviv University Tel Aviv Israel
- Department of Ophthalmology Shamir Medical Center Tel Aviv Israel
| | - Kai Kaarniranta
- Department of Ophthalmology University of Eastern Finland Kuopio Finland
- Department of Ophthalmology Kuopio University Hospital Kuopio Finland
| | - Raimo Tuuminen
- Helsinki Retina Research Group University of Helsinki Helsinki Finland
- Department of Ophthalmology Kymenlaakso Central Hospital Kotka Finland
| |
Collapse
|
17
|
Yamenskov VV, Pavlov VA, Drakon AK, Sheludchenko VM, Karpilova MA, Elfimov MA, Vasilieva ES. [Physiotherapeutic methods in ophthalmic rehabilitation of patients with glaucoma and cataract]. Vopr Kurortol Fizioter Lech Fiz Kult 2022; 99:78-84. [PMID: 36083822 DOI: 10.17116/kurort20229904278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The authors analyzed scientific data on physiotherapeutic measures in the treatment of combined glaucoma and cataracts as one of the main causes of blindness and low vision.
Collapse
Affiliation(s)
- V V Yamenskov
- Petrovsky National Research Center of Surgery, Moscow, Russia
| | - V A Pavlov
- Petrovsky National Research Center of Surgery, Moscow, Russia
| | - A K Drakon
- Petrovsky National Research Center of Surgery, Moscow, Russia
- Research Institute of Eye Diseases, Moscow, Russia
| | | | | | - M A Elfimov
- Research Institute of Eye Diseases, Moscow, Russia
| | - E S Vasilieva
- Petrovsky National Research Center of Surgery, Moscow, Russia
| |
Collapse
|
18
|
Chen M, Zhang C, Zhou N, Wang X, Su D, Qi Y. Metformin alleviates oxidative stress-induced senescence of human lens epithelial cells via AMPK activation and autophagic flux restoration. J Cell Mol Med 2021; 25:8376-8389. [PMID: 34296521 PMCID: PMC8419182 DOI: 10.1111/jcmm.16797] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 05/10/2021] [Accepted: 07/06/2021] [Indexed: 12/22/2022] Open
Abstract
Cataracts are the leading cause of blindness worldwide owing to the increasing proportion of elderly individuals in the population. The purpose of this study was to investigate whether metformin could alleviate the occurrence and development of age‐related cataract (ARC) and the underlying mechanism. In the present study, we established a senescence model induced by oxidative stress, which was confirmed by measuring β‐galactosidase activity, qRT‐PCR and Western blotting. In addition, we showed that metformin alleviated the oxidative stress‐induced senescence of HLE‐B3 cells via the activation of AMPK. Next, we provided evidence that oxidative stress impaired autophagic flux and induced lysosomal dysfunction. Subsequently, we found that metformin restored autophagic flux that had been impaired by oxidative stress by activating AMPK. Additionally, we found that metformin suppressed HLE‐B3 cell senescence by improving lysosomal function and inactivating mTOR. Furthermore, the inactivation of AMPK, impairment of autophagic flux and lysosomal dysfunction were observed in the human lens epithelium of ARC. In summary, our data suggest that the activation of AMPK may be a potential strategy for preventing ARC, and metformin may be an emerging candidate to alleviate the formation and development of ARC.
Collapse
Affiliation(s)
- Mengmeng Chen
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chunmei Zhang
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Nan Zhou
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xu Wang
- Department of Ophthalmology, Xixi Hospital of Hangzhou, Hangzhou, China
| | - Dongmei Su
- Department of Genetics, Health Department, National Research Institute for Family Planning, Beijing, China
| | - Yanhua Qi
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| |
Collapse
|
19
|
Zhang K, Yin Y, Pei C, Wu C. MicroRNA-124 regulates lens epithelial cell apoptosis by affecting Fas alternative splicing by targeting polypyrimidine tract-binding protein in age-related cataract. Clin Exp Ophthalmol 2021; 49:591-605. [PMID: 34008270 DOI: 10.1111/ceo.13946] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/07/2021] [Accepted: 05/14/2021] [Indexed: 12/27/2022]
Abstract
BACKGROUND Age-related cataract (ARC) is a primary cause of visual blindness worldwide. Lens epithelial cell (LEC) apoptosis, in which Fas plays an essential role, is a vital cytological basis for cataractogenesis. However, the regulatory mechanism of Fas-dependent LEC apoptosis is not well understood. This study aimed to investigate whether MicroRNA (miRNA)-124 can regulate LEC apoptosis by targeting polypyrimidine tract-binding protein (PTB) and thereby affecting Fas alternative splicing in ARC. METHODS Lens capsule samples from patients with ARC and cornea donors with a transparent lens were collected. HLE-B3 cells were cultured and treated with hydrogen peroxide (H2 O2 ) to establish an apoptosis model in LECs. The expression of miRNA-124, PTB, Fas, and Fas isoforms in tissues and cell lines was assessed by reverse transcription-quantitative polymerase chain reaction (RT-qPCR), western blotting, polyacrylamide gel electrophoresis, and flow cytometry. The miRNA-124 mimic and inhibitor were transfected into HLE-B3 cells, and the effects of the miRNA-124/PTB/Fas pathway in LECs were assessed by analysis of their related targets. RESULTS High expression of miRNA-124 and membrane Fas (mFas) mRNA and decreased PTB expression were observed in the lens capsule samples. In cells undergoing H2 O2 -induced apoptosis, mFas expression was increased, accompanied by decreased PTB and increased miRNA-124 expression. Subsequently, miRNA-124 upregulation suppressed PTB expression, elevated the mFas level without affecting total Fas expression and promoted apoptosis; miRNA-124 downregulation exerted the opposite effects. CONCLUSION This study revealed that miRNA-124 promotes LEC apoptosis in ARC by upregulating mFas through targeted inhibition of PTB. Moreover, the identification of the miRNA-124/PTB/Fas pathway provides novel insight into Fas-dependent LEC apoptosis.
Collapse
Affiliation(s)
- Kaiyun Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yue Yin
- School of Public Health, Xi'an Jiaotong University, Xi'an, China
| | - Cheng Pei
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Changrui Wu
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| |
Collapse
|
20
|
Xu X, Gao R, Li S, Li N, Jiang K, Sun X, Zhang J. Circular RNA circZNF292 regulates H 2 O 2 -induced injury in human lens epithelial HLE-B3 cells depending on the regulation of the miR-222-3p/E2F3 axis. Cell Biol Int 2021; 45:1757-1767. [PMID: 33851769 DOI: 10.1002/cbin.11615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/22/2021] [Accepted: 04/12/2021] [Indexed: 12/18/2022]
Abstract
Circular RNAs (circRNAs) play important roles in the pathogenesis of age-related cataract (ARC). CircRNA zinc finger protein 292 (circZNF292, hsa_circ_0004058) is downregulated in ARC lens capsules. Here, we focused on its precise roles in oxidative stress underlying the pathogenesis of ARC. CircZNF292, microRNA (miR)-222-3p, and E2F transcription factor 3 (E2F3) were quantified by quantitative real-time polymerase chain reaction or western blot. Cell viability was assessed by the cell counting kit-8 assay. Cell cycle distribution and apoptosis were detected by flow cytometry. The activities of superoxide dismutase, catalase, and malondialdehyde were measured using the corresponding assay kit. Targeted correlations among circZNF292, miR-222-3p, and E2F3 were verified by the dual-luciferase reporter, RNA immunoprecipitation and RNA pull-down assays. Our data showed that circZNF292 was downregulated in ARC tissues and H2 O2 -treated human lens epithelial B3 (HLE-B3) cells. Increased expression of circZNF292 alleviated H2 O2 -induced cell viability suppression, apoptosis promotion, and oxidative stress enhancement. Mechanistically, circZNF292 directly targeted miR-222-3p, and circZNF292 regulated E2F3 expression through miR-222-3p. MiR-222-3p was a functional mediator of circZNF292 in modulating H2 O2 -induced injury in HLE-B3 cells. Furthermore, reduced level of miR-222-3p ameliorated H2 O2 -induced HLE-B3 cell damage by upregulating E2F3. Our present study demonstrated that increased expression of circZNF292 ameliorated H2 O2 -induced injury in HLE-B3 cells at least in part through the miR-222-3p/E2F3 axis, highlighting a novel insight into the involvement of circRNAs in the pathogenesis of ARC.
Collapse
Affiliation(s)
- Xinyan Xu
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Rongyu Gao
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Shuchan Li
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Nan Li
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Keke Jiang
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Xianyong Sun
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Jie Zhang
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| |
Collapse
|
21
|
Liu Y, Li S, Liu Y, Lv X, Zhou Q. MicroRNA-124 facilitates lens epithelial cell apoptosis by inhibiting SPRY2 and MMP-2. Mol Med Rep 2021; 23:381. [PMID: 33760112 PMCID: PMC7986009 DOI: 10.3892/mmr.2021.12020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 12/18/2020] [Indexed: 11/26/2022] Open
Abstract
Age-related cataract (ARC) is the primary cause of blindness worldwide. Abnormal expression of microRNAs (miRNAs/miRs) has been reported to be associated with multiple diseases, including ARC. However, the potential role of miR-124 in ARC remains unclear. The present study used the human lens epithelial cell line, SRA01/04, to investigate the potential role of miR-124 in ARC. Reverse transcription-quantitative PCR analysis was performed to detect the expression levels of miR-124, protein sprouty homolog 2 (SPRY2) and matrix metalloproteinase-2 (MMP-2) in ARC tissues, while western blotting was performed to detect the protein levels of SPRY2 and MMP-2. Cell viability and apoptosis of SRA01/04 cells were assessed via Cell Counting Kit-8 and TUNEL assays, respectively. The interaction between miR-124 and SPRY2 or MMP-2 was confirmed via the dual-luciferase reporter and RNA immunoprecipitation assays. The results of the present study demonstrated that miR-124 expression was significantly upregulated in ARC tissues, and knockdown of miR-124 increased SRA01/04 cell viability and suppressed apoptosis. In addition, SPRY2 and MMP-2 expression was decreased in ARC tissues, and were demonstrated to directly bind to miR-124. Overexpression of SPRY2 or MMP-2 increased SRA01/04 cell viability and repressed apoptosis, the effects of which were reversed following overexpression of miR-124. Taken together, these results suggested that miR-124 facilitates lens epithelial cell apoptosis by modulating SPRY2 or MMP-2 expression, providing a novel treatment approach for ARC.
Collapse
Affiliation(s)
- Yan Liu
- Department of Ophthalmology, The First People's Hospital of Changzhou, Changzhou, Jiangsu 223000, P.R. China
| | - Shuting Li
- Department of Ophthalmology, The First People's Hospital of Changzhou, Changzhou, Jiangsu 223000, P.R. China
| | - Yao Liu
- Department of Ophthalmology, The First People's Hospital of Changzhou, Changzhou, Jiangsu 223000, P.R. China
| | - Xujing Lv
- Department of Ophthalmology, The First People's Hospital of Changzhou, Changzhou, Jiangsu 223000, P.R. China
| | - Qing Zhou
- Department of Third Institute of Clinical Medicine, Soochow University, Suzhou, Jiangsu 215006, P.R. China
| |
Collapse
|
22
|
Liu J, Zhang J, Zhang G, Zhou T, Zou X, Guan H, Wang Y. CircMRE11A_013 binds to UBXN1 and integrates ATM activation enhancing lens epithelial cells senescence in age-related cataract. Aging (Albany NY) 2021; 13:5383-402. [PMID: 33508783 DOI: 10.18632/aging.202470] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 12/14/2020] [Indexed: 12/17/2022]
Abstract
Ultraviolet B (UVB) irradiation could trigger DNA double-strand breaks (DDSBs) and senescence in lens epithelial cells (LECs), thus inducing age-related cortical cataract (ARCC) formation. Cell-cycle irreversible arrest induced by DDSBs depended on excessive activation of ataxia-telangiectasia mutated kinase (ATM). We studied the up-regulated circular RNA circMRE11A_013 (circMRE11A) in LECs of ARCC and SRA01/04 cell lines under UVB exposure. In vitro, knockdown of circMRE11A in SRA01/04 cell lines enhanced cell viability and cell cycle, while over-expression of circMRE11A exhibited an opposite trend. Additionally, circMRE11A could bind to UBX domain-containing protein 1 (UBXN1), which might enhance excessive activation of ATM and initiate ATM/p53/p21 signaling pathway causing LECs cell-cycle arrest and senescence. In vivo, recombinant adeno-associated virus vectors (rAAV-2) virions of circMRE11A (circMRE11A-AAV2) was injected to Institute of Cancer Research mouse vitreous cavity. The circMRE11A-AAV2 could express in mouse lens at 4 weeks. The LECs aging and opacity lens were observed at 8 weeks after the injection. Together, our findings reveal a previously unidentified role of circMRE11A interacting with UBXN1 in enhancing ATM activity and inhibiting LECs cell-cycle in ARCC formation. The findings might give us a better understanding of ARC pathology and provide a novel and more effective therapeutic approaches for ARC treatment.
Collapse
|
23
|
Li Q, Pan H, Liu Q. MicroRNA-15a modulates lens epithelial cells apoptosis and proliferation through targeting B-cell lymphoma-2 and E2F transcription factor 3 in age-related cataracts. Biosci Rep 2019; 39:BSR20191773. [PMID: 31737898 DOI: 10.1042/BSR20191773] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 10/25/2019] [Accepted: 11/07/2019] [Indexed: 12/17/2022] Open
Abstract
Age-related cataract remains a serious problem in the aged over the world. MicroRNAs are abnormally expressed in various diseases including age-related cataract. MicroRNA-15a (MicroRNA-15a) has been involved in various diseases and plays crucial roles in many cellular processes. However, the mechanism of microRNA-15a in the genesis of cataract remains barely known. We therefore aimed to investigate the role of microRNA-15a in the cataract. Herein, human lens epithelial B3 cells, HLE-B3 cells were treated with 200 μmol/l H2O2 for 24 h. H2O2 was utilized in our study to induce HLE-B3 cells injury. We observed that cell apoptosis was induced by the treatment of H2O2 and meanwhile, cell proliferation was repressed by 200 μmol/l H2O2. Then, it was found that microRNA-15a was significantly increased with the H2O2 exposure in vitro. Importantly, B-cell lymphoma-2 (BCL2) and E2F transcription factor 3 (E2F3) exert crucial roles in cell apoptosis and cell proliferation. We found that BCL2 and E2F3 were greatly reduced by 200 μmol/l H2O2 in human lens epithelial cells. In addition, microRNA-15a overexpression induced cell apoptosis and repressed cell proliferation through suppressing BCL2 and E2F3. Subsequently, BCL2 and E2F3 were predicted as a direct target of microRNA-15a. The direct correlation between microRNA-15a and BCL2/E2F3 was confirmed by dual luciferase reporter assay. In conclusion, we demonstrated that microRNA-15a triggered apoptosis and repressed the proliferation of HLE-B3 cells by modulating BCL2 and E2F3.
Collapse
|
24
|
Liang S, Dou S, Li W, Huang Y. Profiling of circular RNAs in age-related cataract reveals circZNF292 as an antioxidant by sponging miR-23b-3p. Aging (Albany NY) 2020; 12:17271-17287. [PMID: 32913142 PMCID: PMC7521481 DOI: 10.18632/aging.103683] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/29/2020] [Indexed: 01/24/2023]
Abstract
Age-related cataract (ARC) is one of the major causes of visual impairment and reversible blindness worldwide. Accumulating evidence has revealed that circular RNAs (circRNAs) are involved in multiple regulatory processes in various ocular diseases. However, the expression profile, regulatory roles, and underlying mechanisms of circRNAs in ARC remain largely unknown. Herein we deep-sequenced circRNAs of anterior lens capsules from normal and ARC lenses, and detected 23,787 candidate circRNAs. Of these, 466 were significantly differentially expressed, and a higher correlation in down-regulated circRNAs between ARC and diabetic cataract was observed compared with up-regulated ones. Subsequent bioinformatics analysis disclosed that certain differentially expressed circRNAs participated in oxidative stress and apoptosis-related signaling pathways in ARC. Notably, the level of circZNF292 was significantly decreased, while miR-23b-3p was significantly increased in ARC. The target region prediction and dual-luciferase reporter assays proved that circZNF292 acted as a competitive endogenous RNA to regulate the expression of anti-oxidative genes through competing with miR-23b-3p. Our results indicate that circZNF292, a down-regulated circRNA in the anterior lens capsule of ARC patients, may be involved in resistance to oxidative damage and apoptosis of lens epithelial cells by sponging miR-23b-3p, providing a potential target for prevention and treatment of ARC.
Collapse
Affiliation(s)
- Shuqi Liang
- Medical College of Qingdao University, Qingdao, China,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China
| | - Shengqian Dou
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Wenfeng Li
- Department of Medical Oncology, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yusen Huang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| |
Collapse
|
25
|
Yan Y, Yu H, Sun L, Liu H, Wang C, Wei X, Song F, Li H, Ge H, Qian H, Li X, Tang X, Liu P. Laminin α4 overexpression in the anterior lens capsule may contribute to the senescence of human lens epithelial cells in age-related cataract. Aging (Albany NY) 2020; 11:2699-2723. [PMID: 31076560 PMCID: PMC6535067 DOI: 10.18632/aging.101943] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 04/27/2019] [Indexed: 12/16/2022]
Abstract
Senescence is a leading cause of age-related cataract (ARC). The current study indicated that the senescence-associated protein, p53, total laminin (LM), LMα4, and transforming growth factor-beta1 (TGF-β1) in the cataractous anterior lens capsules (ALCs) increase with the grades of ARC. In cataractous ALCs, patient age, total LM, LMα4, TGF-β1, were all positively correlated with p53. In lens epithelial cell (HLE B-3) senescence models, matrix metalloproteinase-9 (MMP-9) alleviated senescence by decreasing the expression of total LM and LMα4; TGF-β1 induced senescence by increasing the expression of total LM and LMα4. Furthermore, MMP-9 silencing increased p-p38 and LMα4 expression; anti-LMα4 globular domain antibody alleviated senescence by decreasing the expression of p-p38 and LMα4; pharmacological inhibition of p38 MAPK signaling alleviated senescence by decreasing the expression of LMα4. Finally, in cataractous ALCs, positive correlations were found between LMα4 and total LM, as well as between LMα4 and TGF-β1. Taken together, our results implied that the elevated LMα4, which was possibly caused by the decreased MMP-9, increased TGF-β1 and activated p38 MAPK signaling during senescence, leading to the development of ARC. LMα4 and its regulatory factors show potential as targets for drug development for prevention and treatment of ARC.
Collapse
Affiliation(s)
- Yu Yan
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.,Department of Pharmacology, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, 150081, China
| | - Haiyang Yu
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.,Department of Pharmacology, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, 150081, China
| | - Liyao Sun
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.,Department of Pharmacology, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, 150081, China
| | - Hanruo Liu
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Science Key Lab, Beijing, 100000, China
| | - Chao Wang
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.,Department of Pharmacology, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, 150081, China
| | - Xi Wei
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.,Department of Pharmacology, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, 150081, China
| | - Fanqian Song
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.,Department of Pharmacology, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, 150081, China
| | - Hulun Li
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Harbin, 150081, China
| | - Hongyan Ge
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| | - Hua Qian
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, 150081, China
| | - Xiaoguang Li
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, 150081, China
| | - Xianling Tang
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| | - Ping Liu
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| |
Collapse
|
26
|
Ling J, Tan K, Lu L, Yang F, Luan L. lncRNA MIAT increases cell viability, migration, EMT and ECM production in age-related cataracts by regulating the miR-181a/CTGF/ERK signaling pathway. Exp Ther Med 2020; 20:1053-1063. [PMID: 32742346 PMCID: PMC7388250 DOI: 10.3892/etm.2020.8749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 03/24/2020] [Indexed: 12/15/2022] Open
Abstract
Age-related cataract (ARC) is a common cause of blindness in elderly individuals. Long non-coding RNA (lncRNA) myocardial infarction associated transcript (MIAT) has been reported to participate in various biological processes in a number of diseases; however, the biological mechanism underlying MIAT during ARC is not completely understood. The expression levels of MIAT, microRNA (miR)-181a and connective tissue growth factor (CTGF) were measured by reverse transcription-quantitative PCR. The protein expression levels of CTGF, α-smooth muscle actin, fibronectin, collagen type I, ERK, phosphorylated (p)-ERK, mitogen-activated protein kinase (MEK), and p-MEK were detected by western blotting. Cell viability and migration were assessed using MTT and Transwell assays, respectively. Moreover, a dual-luciferase reporter assay was performed to investigate the interaction between miR-181a and MIAT or CTGF. MIAT and CTGF were upregulated, while miR-181a was significantly downregulated in ARC tissues compared with normal tissues. MIAT or CTGF knockdown decreased cell viability, migration, epithelial-mesenchymal transition and extracellular matrix production in TGF-β2-treated SRA01/04 cells. It was hypothesized that miR-181a may be sponged by MIAT and may target CTGF. Furthermore, the miR-181a inhibitor reversed the inhibitory effect of MIAT knockdown on the progression of TGF-β2-treated SRA01/04 cells. Moreover, CTGF knockdown also reversed MIAT overexpression-mediated progression of TGF-β2-treated SRA01/04 cells. In addition, MIAT and CTGF regulated the activity of the ERK signaling pathway. The results suggested that MIAT may regulate the progression of ARC via the miR-181a/CTGF/ERK signaling pathway, which may serve as a novel therapeutic target for ARC.
Collapse
Affiliation(s)
- Jiaojiao Ling
- Department of Ophthalmology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Ke Tan
- Department of Ophthalmology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Lu Lu
- Department of Ophthalmology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Fang Yang
- Department of Ophthalmology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Lan Luan
- Department of Ophthalmology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| |
Collapse
|
27
|
Zhu Z, Wang L, Scheetz J, He M. Age-related cataract and 10-year mortality: the Liwan Eye Study. Acta Ophthalmol 2020; 98:e328-e332. [PMID: 31559703 DOI: 10.1111/aos.14258] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 09/06/2019] [Indexed: 11/30/2022]
Abstract
PURPOSE To explore the association between age-related cataract and 10-year mortality in an adult population in urban China. METHODS A total of 1405 participants aged 50 years or older were examined at baseline in the Guangzhou Liwan Eye Study. All participants were invited to attend a 10-year follow-up visit. Cataract cases were defined as either having visible lens opacity confirmed with direct ophthalmoscope under pupil dilation or previous history of cataract surgery. Visual impairment (VI) was defined as a visual acuity of 20/40 or worse in the better-seeing eye with habitual correction if worn. Body mass index (BMI) was based on anthropometric data. A brief questionnaire regarding family income, educational attainment and medical history of systemic disease was administered. Mortality rates were compared using the log-rank test and Cox proportional hazards regression models. RESULTS Among 1405 participants examined at baseline, 957 participants (68.1%) had visible lens opacity or history of cataract surgery. After 10 years, 320 (22.8%) participants died. The 10-year mortality rate was significantly higher in participants with cataract than in those without (30.1% versus 7.14%, log-rank p < 0.05). After adjusting for age, gender, family income, educational attainment, BMI, history of diabetes and hypertension and presence of VI, presence of cataract predicted a nearly threefold increase in the risk of mortality (HR, 2.99; 95% CI, 1.89-4.71). CONCLUSIONS Our findings that age-related cataract is a predictor for poorer survival compared to those without may imply that cataract is a biomarker of ageing and frailty.
Collapse
Affiliation(s)
- Zhuoting Zhu
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Lanhua Wang
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Jane Scheetz
- Centre for Eye Research Australia Royal Victorian Eye and Ear Hospital Melbourne Victoria Australia
| | - Mingguang He
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| |
Collapse
|
28
|
Cui YL, Yu XN, Zhang X, Tang YL, Tang XJ, Yang H, Ping XY, Wu J, Yin QC, Zhou JY, Xu XY, Shentu XC. Association of IGF1R polymorphisms (rs1546713) with susceptibility to age-related cataract in a Han Chinese population. Int J Ophthalmol 2020; 13:374-381. [PMID: 32309172 DOI: 10.18240/ijo.2020.03.02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 10/23/2019] [Indexed: 11/23/2022] Open
Abstract
AIM To explore the susceptible association between the insulin-like growth factor-1 receptor (IGF1R) single nucleotide polymorphism (SNP) and age-related cataract (ARC), and investigate the underlying mechanisms in human lens epithelium (HLE) cells. METHODS Totally 1190 unrelated participants, comprising 690 ARC patients and 500 healthy individuals in Han Chinese population were recruited and genotyped for target SNP. The χ 2-test was used to detect genotypic distribution between the patient and control groups and the logistic regression was performed to adjust the age and gender. Meanwhile, different biological experimental methods, such as cell counting kit 8 (CCK-8) assay, flow cytometry, quantitative real time polymerase chain reaction (Q-PCR) and Western blot, were used to detect cell viability, cell cycle progression and apoptosis in HLE cells or IGF1R knockdown HLE cells. RESULTS The rs1546713 in IGF1R gene was identified (P=0.046, OR: 1.606, 95%CI: 1.245-2.071), which shown a significant relevance with ARC risk under the dominant model. The results demonstrated that IGF1R knockdown inhibited cell proliferation by inducing cell cycle arrested at S phase and promoting apoptosis. Mechanistically, the cell cycle blocked at S phase was linked with the alterations of cyclin A, cyclin B, cyclin E and P21. The pro-apoptosis function of IGF1R may related with stimulating the activation of Caspase-3 and altering the expression levels of apoptotic proteins, including Bcl-2, Bax and Caspase-3. CONCLUSION This study first report that IGF1R polymorphisms may affect susceptibility to ARCs in Han Chinese population and provide new clues to understand the pathogenic mechanism of ARCs. Notably, IGF1R is likely a potential target for ARC prevention and treatment.
Collapse
Affiliation(s)
- Yi-Lei Cui
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Xiao-Ning Yu
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Xin Zhang
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Ye-Lei Tang
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Xia-Jing Tang
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Hao Yang
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Xi-Yuan Ping
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Jing Wu
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Qi-Chuan Yin
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Jia-Yue Zhou
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Xia-Yan Xu
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| | - Xing-Chao Shentu
- Eye Center, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China
| |
Collapse
|
29
|
Jiang H, Wang LN, Liu Y, Li M, Wu M, Yin Y, Ma L, Wu CR. Physical activity and risk of age-related cataract. Int J Ophthalmol 2020; 13:643-649. [PMID: 32399418 DOI: 10.18240/ijo.2020.04.18] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/24/2019] [Indexed: 11/23/2022] Open
Abstract
AIM To summarize quantitatively the prospective association between physical activity and age-related cataract (ARC) risk. METHODS PubMed, Embase, Web of Science, and Cochrane Library were systematically searched for all relevant follow up studies until July 2019. Multivariable-adjusted relative risks (RRs) and corresponding 95% confidence intervals (CIs) from individual studies were used to calculate the overall summary estimates. The dose-response relationship was assessed using generalized least-squares trend estimation. RESULTS Six prospective cohort studies, involving 19 173 cases in 6.2-12.1y follow up of 171 620 participants, were included in the analysis. Increased physical activity was significantly associated with reduced risk of ARC by 10% (RR: 0.90; 95%CI: 0.81, 0.99, P=0.04). Stratified analysis by assessment method for physical activity suggest that studies using metabolic equivalent (MET) per day tended to report a slightly stronger association with ARC (RR: 0.85; 95%CI: 0.81, 0.90, P<0.001) than studies which assessed activity by weekly activity (RR: 0.96; 95%CI: 0.89, 1.03, P=0.24). Dose-response analysis indicated that the risk of ARC decreased by 2% (RR: 0.98; 95%CI: 0.98, 0.99, P<0.001) for every 6 METs per day increase in activity. CONCLUSION The findings from this Meta-analysis provide additional evidence that increased physical activity is inversely associated with ARC risk dose-responsively.
Collapse
Affiliation(s)
- Hong Jiang
- First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710061, Shaanxi Province, China.,School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi Province, China
| | - Li-Na Wang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi Province, China
| | - Yan Liu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi Province, China
| | - Ming Li
- Centre for Population Health Research, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Min Wu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi Province, China
| | - Yue Yin
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi Province, China
| | - Le Ma
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi Province, China
| | - Chang-Rui Wu
- First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710061, Shaanxi Province, China
| |
Collapse
|
30
|
Chen X, Zhou DY, Shen J, Wu YB, Sun QZ, Dong JM, Yu JC. Prevalence and risk factors on age-related cataract and surgery in adults over 50 years old in Binhu District, Wuxi, China. Int J Ophthalmol 2020; 13:445-451. [PMID: 32309182 DOI: 10.18240/ijo.2020.03.12] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 12/11/2019] [Indexed: 01/11/2023] Open
Abstract
AIM To investigate the prevalence and risk factors of age-related cataract (ARC), ARC surgery procedures, and postoperative vision results among adults over 50 years old in the Binhu District of Wuxi City, China. METHODS Thirty basic sampling units were analyzed via a cluster random sampling method. Detailed medical histories were collected and eye examinations were performed. Cataract prevalence and surgical procedures were quantified. RESULTS Among the 6150 participants, 1421 cataract cases were diagnosed and prevalence was 23.1%. The prevalence of cortical, nuclear, and posterior subcapsular cataracts increased with age (P<0.001). Cataract prevalence was significantly higher among elderly, female, or illiterate individuals and people with hypertension, diabetes, and a history of smoking and drinking (all P<0.05). As participant age increased and education level decreased, the frequency of cataract blindness surgeries gradually decreased, but without statistical significance within groups (P>0.05). The odds ratio of cataract patients who had or did not have cataract surgery was 3.15 (87/28) and the frequency of cataract blindness surgery was 75.7% (87/115). Poor visual outcomes was in 107 eyes (40.7%) after cataract surgery. Poor vision was mostly caused by uncorrected reflective errors (30.9%) and ocular comorbidities (41.1%). The prevalence of cataract surgery complications was 5.7% (15/263). Surgical complications and posterior capsular opacification were avoidable factors facilitating poor vision. CONCLUSION ARC, especially in females and illiterate individuals, presents a public health problem in this district. Poor visual outcomes after cataract surgery are frequent. High-quality cataract surgeries and treatment of ocular comorbidities are vital.
Collapse
Affiliation(s)
- Xing Chen
- Department of Ophthalmology, Wuxi 9th Affiliated Hospital of Soochow University, Wuxi 214062, Jiangsu Province, China
| | - Dan-Ying Zhou
- Department of Ophthalmology, Wuxi 9th Affiliated Hospital of Soochow University, Wuxi 214062, Jiangsu Province, China
| | - Jian Shen
- Department of Ophthalmology, Wuxi 9th Affiliated Hospital of Soochow University, Wuxi 214062, Jiangsu Province, China
| | - Yan-Bing Wu
- Department of Ophthalmology, Wuxi 9th Affiliated Hospital of Soochow University, Wuxi 214062, Jiangsu Province, China
| | - Qing-Zhu Sun
- Department of Ophthalmology, Wuxi 9th Affiliated Hospital of Soochow University, Wuxi 214062, Jiangsu Province, China
| | - Jian-Min Dong
- Department of Ophthalmology, Wuxi 9th Affiliated Hospital of Soochow University, Wuxi 214062, Jiangsu Province, China
| | - Jian-Chun Yu
- Department of Ophthalmology, Wuxi 9th Affiliated Hospital of Soochow University, Wuxi 214062, Jiangsu Province, China
| |
Collapse
|
31
|
Namazova IK, Sayilova GT, Majidova SR, Salmanova SR. [Determination of cytokines in the blood serum and in the aqueous humor of the anterior camera during pseudoexfoliative syndrome and cataract.]. Adv Gerontol 2020; 33:352-359. [PMID: 32593252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
There have been studied changes of proinflammatory cytokines, IL-1β and TNF-α, in anterior chamber aqueous humor and in blood serum before cataract surgery in 81 patients with cataract. Of these, 46 patients had verified diagnosis of pseudoexfoliative syndrome (PEХ) of varying degree of manifestation of dystrophic changes and deposits of pseudoexfoliative material (main group). In 35 patients, PES (comparison group) has not been detected. 2-stage biomicroscopy (with a narrow pupil, after tonometry with mydriasis) and ultrasound biomicroscopy (UBM) have been conducted. According to the results of biomicroscopy and UBM structures of the eye, 3 stages of development of PEX have been identified: I - 11 (23,91%), II - 20 (43,48%), III - 15 (32,61%). Inflammatory complications after cataract surgery have been in 17,39% of eyes with PEХ, of which PEX Stage II in 13,04% and PEХ Stage III in 4,35%. There have been no complications in the eyes with PEX Stage I and without PEX. In comparison with patients without PEX, significant differences in the indicators of IL-1β and TNF-α both in the blood serum and in the aqueous humor of the anterior chamber of patients with PEX have been found. In particular, there have been confirmed significant differences of indicators depending on the stage of development of changes during PEX. At the same time, higher concentrations of IL-1β and TNF-α during PEX, as well as somatic pathologies in patients with PES occurring 2 times more often, confirm the opinion that PEX should be considered as pathology of the organ of vision. Thus, decrease in the compensatory abilities of the body with age and a set of chronic age-related pathology form the pathogenetic mechanisms of PEX, including age-related changes in structures and surgery background in older patients, to a certain extent predetermining the nature and features of the postoperative period and possible complications.
Collapse
Affiliation(s)
- I K Namazova
- Acad. Zarifa Aliyeva National Centre of Ophthalmology, 32/15 Javadkhan str., Baku AZ 1114, Azerbaijan, e-mail:
| | - G T Sayilova
- Acad. Zarifa Aliyeva National Centre of Ophthalmology, 32/15 Javadkhan str., Baku AZ 1114, Azerbaijan, e-mail:
| | - S R Majidova
- Acad. Zarifa Aliyeva National Centre of Ophthalmology, 32/15 Javadkhan str., Baku AZ 1114, Azerbaijan, e-mail:
| | - S R Salmanova
- Acad. Zarifa Aliyeva National Centre of Ophthalmology, 32/15 Javadkhan str., Baku AZ 1114, Azerbaijan, e-mail:
| |
Collapse
|
32
|
Tan AG, Kifley A, Flood VM, Holliday EG, Scott RJ, Cumming RG, Mitchell P, Wang JJ. Evaluating the associations between obesity and age-related cataract: a Mendelian randomization study. Am J Clin Nutr 2019; 110:969-976. [PMID: 31401654 DOI: 10.1093/ajcn/nqz167] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 07/02/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The obesity-cataract association has been inconsistently reported. The fat mass and obesity-related (FTO) single-nucleotide polymorphism (SNP) rs9939609 is a major SNP associated with obesity and has been used as an instrumental variable for obesity in a Mendelian randomization (MR) approach. An interaction between the FTO SNP and macronutrient intake for obesity was suggested previously. OBJECTIVE The aim of this study was to assess the associations between obesity and cataract, using FTO SNP rs9939609 as an instrumental variable in an MR approach, and explore interactions of this SNP with macronutrient intake in relation to risk of cataract in a population-based cohort. METHODS The Blue Mountains Eye Study (BMES) is a longitudinal population-based study of common eye disease. Of 3654 baseline participants of the BMES (1992-1994), 2334 (75.8% of survivors) and 1952 (76.7% of survivors) were followed 5 and 10 y later. During the 5-y follow-up, 1174 new participants were examined. Cumulative cataract was defined as the presence of cortical, nuclear, or posterior subcapsular (PSC) cataract at any visit, following the Wisconsin Cataract Grading System. Imputed dosage of the FTO SNP rs9939609 was used. Quintiles of macronutrient intake (carbohydrates, protein, fats) were derived from an FFQ. ORs and 95% CIs were estimated using multivariable-adjusted logistic regression models. RESULTS After multivariable adjustment, there were no associations between BMI and any cataract types in MR models using rs9939609 as an instrumental variable. However, an interaction between rs9939609 and protein intake for PSC cataract risk was suggested (P = 0.03). In analyses stratified by quintiles of protein intake, each minor allele of rs9939609 was associated with increased odds of PSC (OR: 2.14; 95% CI: 1.27, 3.60) in the lowest quintile subgroup only. CONCLUSIONS Obesity was not causally associated with age-related cataract. However, among persons in the lowest quintile of protein intake, obesity may be associated with PSC cataract.
Collapse
Affiliation(s)
- Ava Grace Tan
- Centre for Vision Research, The Westmead Institute for Medical Research, The University of Sydney, Sydney, Australia
| | - Annette Kifley
- Centre for Vision Research, The Westmead Institute for Medical Research, The University of Sydney, Sydney, Australia
| | - Victoria M Flood
- Faculty of Health Sciences, The University of Sydney, Sydney, Australia
- Westmead Hospital, Western Sydney Local Health District, Sydney, Australia
| | - Elizabeth G Holliday
- Centre for Clinical Epidemiology and Biostatistics, and School of Medicine and Public Health, University of Newcastle, Newcastle, Australia
| | - Rodney J Scott
- School of Biomedical Sciences, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute and NSW Health Pathology, North, Newcastle, Australia
| | - Robert G Cumming
- School of Public Health, The University of Sydney, Sydney, Australia
| | - Paul Mitchell
- Centre for Vision Research, The Westmead Institute for Medical Research, The University of Sydney, Sydney, Australia
| | - Jie Jin Wang
- Centre for Vision Research, The Westmead Institute for Medical Research, The University of Sydney, Sydney, Australia
- Health Services and Systems Research, Duke-NUS Medical School, National University of Singapore, Singapore
| |
Collapse
|
33
|
Tan AG, Kifley A, Flood VM, Russell J, Burlutsky G, Cumming RG, Mitchell P, Wang JJ. The Combination of Healthy Diet and Healthy Body Weight Is Associated with Lower Risk of Nuclear Cataract in the Blue Mountains Eye Study. J Nutr 2019; 149:1617-1622. [PMID: 31162596 DOI: 10.1093/jn/nxz103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/10/2019] [Accepted: 04/25/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Greater adherence to dietary guidelines has previously been found to be associated with decreased risk of visual impairment. However, whether or not this association extends to age-related cataract, 1 of the leading causes of visual impairment, is unknown. OBJECTIVES The aim of this study was to assess the association between adherence to dietary guidelines, using total diet score, and incidence of age-related cataract. METHODS Of 3654 baseline participants of the population-based Blue Mountains Eye Study cohort (1992-1994), 2334 (75.8% survivors) and 1952 (76.7% survivors) were examined after 5 and 10 y, respectively. Cataract was assessed from lens photographs using the Wisconsin Cataract Grading System. Baseline total diet score was calculated from FFQ data following a modified version of the Healthy Eating Index for Australians. OR with 95% CI were estimated using discrete logistic regression analyses, adjusting for age, sex, and other confounders. To test interaction, a cross-product term of 2 factors was included in regression models. RESULTS Of 2173 participants (84.7% of those returned for 1 or both follow-ups) with total diet score estimated, 57% were women, mean baseline age was 63.9 ± 8.4y, and mean baseline BMI was 26.3 ± 4.3 kg/m2. After multivariable adjustment, baseline total diet score was not associated with incidence of any cataract. A multiplicative interaction was observed between total diet score and BMI for incident nuclear cataract (P-interaction = 0.04): increasing baseline total diet score was associated with decreased risk of nuclear cataract among participants with BMI <25 (per unit increased total diet score, OR: 0.90; 95% CI: 0.81, 0.99; P = 0.02), but not among participants with BMI ≥25 (OR: 1.00; 95% CI: 0.92, 1.10; P = 0.95). CONCLUSIONS Adherence to dietary guidelines had no appreciable influence on cataract development overall in this older Australian population. However, adherence to dietary guidelines combined with healthy BMI is associated with decreased risk of nuclear cataract, an aging marker.
Collapse
Affiliation(s)
- Ava Grace Tan
- Centre for Vision Research, Department of Ophthalmology, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia
| | - Annette Kifley
- Centre for Vision Research, Department of Ophthalmology, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia
| | - Victoria M Flood
- Faculty of Health Sciences, The University of Sydney, Sydney, NSW, Australia.,Western Sydney Local Health District, Westmead Hospital, Westmead, NSW, Australia
| | - Joanna Russell
- School of Health & Society, Faculty of Social Sciences, University of Wollongong, Wollongong, NSW, Australia
| | - George Burlutsky
- Centre for Vision Research, Department of Ophthalmology, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia
| | - Robert G Cumming
- School of Public Health, The University of Sydney, Sydney, NSW, Australia
| | - Paul Mitchell
- Centre for Vision Research, Department of Ophthalmology, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia
| | - Jie Jin Wang
- Centre for Vision Research, Department of Ophthalmology, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia.,Health Services and Systems Research, Duke-NUS Medical School, Singapore
| |
Collapse
|
34
|
Zhao F, Yu J, Yan Q, Zhang J, Shi M. Clinical Application of 25-MHz Ultrasound Biomicroscopy for Lens Opacity Degree Measurements in Phacoemulsification. Transl Vis Sci Technol 2019; 8:18. [PMID: 31402998 PMCID: PMC6685485 DOI: 10.1167/tvst.8.4.18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 06/10/2019] [Indexed: 11/28/2022] Open
Abstract
Purpose To evaluate the correlation between lens opacity degrees and phacoemulsification cumulated dissipated energy (CDE) values in patients with age-related cataract by applying 25-MHz panoramic ultrasound biomicroscopy (UBM). Methods This observational study was conducted in 227 patients (294 eyes) with age-related cataract. Patient ages ranged from 45 to 91 years. According to the lens images acquired by 25-MHz UBM, the objective indexes of lens opacity degrees were determined by using the ImageJ software. The correlation between lens opacity degrees (pixel units) and CDE values of phacoemulsification were mainly analyzed. Results The means of measurements were as follows: preoperative LogMAR corrected distance visual acuity, anterior chamber depth, and central lens thickness was 1.10 ± 0.61, 2.52 ± 0.51, and 4.34 ± 0.60 mm, respectively. The mean 25-MHz UBM-measured lens opacity degree was 101.30 ± 19.70 pixel units, and the mean CDE value was 9.74 ± 9.10. There was a linear correlation between pixel units and the CDE value, as well as LogMAR corrected distance visual acuity (r = 0.38 and 0.50, respectively; both P < 0.05). Age correlated with anterior chamber depth and lens thickness (r = −0.18 and 0.16, respectively; both P < 0.05) but not with pixel units (r = −0.08, P > 0.05). Conclusion The 25-MHz UBM has significant advantages in displaying the opacity feature of age-related cataract. The 25-MHz UBM combined with ImageJ software can be used to evaluate the opacity degree of age-related cataract quantitatively and may help predict the phacoemulsification parameters in cataract surgery. Translational Relevance Combination of the lens ultrasonic image and image analysis software enables researchers to evaluate lens opacity degree quantitatively and predict the parameters of phacoemulsification surgery.
Collapse
Affiliation(s)
- Fangkun Zhao
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, The Key Laboratory of Lens in Liaoning Province, Shenyang, China
| | - Jiaming Yu
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, The Key Laboratory of Lens in Liaoning Province, Shenyang, China
| | - Qichang Yan
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, The Key Laboratory of Lens in Liaoning Province, Shenyang, China
| | - Jinsong Zhang
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, The Key Laboratory of Lens in Liaoning Province, Shenyang, China
| | - Mingyu Shi
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, The Key Laboratory of Lens in Liaoning Province, Shenyang, China
| |
Collapse
|
35
|
Tang XJ, Shentu XC, Tang YL, Ping XY, Yu XN. The impact of GJA3 SNPs on susceptibility to age-related cataract. Int J Ophthalmol 2019; 12:1008-1011. [PMID: 31236361 DOI: 10.18240/ijo.2019.06.21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 04/30/2019] [Indexed: 02/07/2023] Open
Abstract
AIM To determine the association of gap junction protein alpha 3 (GJA3) gene tag single-nucleotide polymorphisms (SNPs) with susceptibility to age-related cataract (ARC). METHODS In total, 486 ARC patients were matched with 500 healthy controls. All the participants underwent complete ophthalmic examinations. Haplotype-tagging SNPs of GJA3 gene were selected from the HapMap Beijing Han Chinese population. Genomic DNA was extracted from the peripheral blood leukocytes of all the subjects. Under three different genetic models: dominant, recessive, and additive, the association between SNPs and ARC was examined. After adjusting for age and sex, the genetic effects of the GJA3 SNPs were evaluated with logistic regression analysis. RESULTS Four tag GJA3 SNPs (rs6490519, rs9506430, rs9509053, and rs9552089) were included in the present study. None of the SNPs showed a significant relationship with an altered risk of total ARC under the dominant, recessive, or additive models. In the subgroup analysis, rs9506430 had a significant effect on the formation of a posterior subcapsular cataract (P=0.002, OR: 0.227, 95%CI: 0.088-0.590) under the recessive model. CONCLUSION Our study indicates that GJA3 variants may influence the development of posterior subcapsular cataracts. Further studies need to be designed to confirm this possibility.
Collapse
Affiliation(s)
- Xia-Jing Tang
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China.,Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, Zhejiang Province, China
| | - Xing-Chao Shentu
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China.,Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, Zhejiang Province, China
| | - Ye-Lei Tang
- The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China
| | - Xi-Yuan Ping
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China.,Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, Zhejiang Province, China
| | - Xiao-Ning Yu
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China.,Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, Zhejiang Province, China
| |
Collapse
|
36
|
Qin Z, Zhang L, Lyu D, Li J, Tang Q, Yin H, Chen Z, Yao K, Fu Q. Opacification of lentoid bodies derived from human induced pluripotent stem cells is accelerated by hydrogen peroxide and involves protein aggregation. J Cell Physiol 2019; 234:23750-23762. [PMID: 31180584 DOI: 10.1002/jcp.28943] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 11/08/2022]
Abstract
Despite the recent breakthrough in cataract drug development, further improvements have been limited by the lack of human in vitro cataract disease models. This study, therefore, aims to generate a qualified cataract disease model. Mature lentoid bodies (LBs) on Day 25 (D25), which were differentiated from human induced pluripotent stem cells (iPSCs) using the "fried egg" method, were continually culturing (control) or extra treated with either ultraviolet (UV) radiation or hydrogen peroxide (H2 O2 ). The LBs' shape alteration and opacity were examined using light microscopy and mean gray value evaluation. Their structure and crystallin expression were examined using immunofluorescence and transmission electron microscopy (TEM). Real-time polymerase chain reaction and western blot were used to investigate the potential role of autophagy in cloudy LBs. Mature LBs became cloudy with time which was accelerated by H2 O2 . Immunofluorescence examinations and TEM showed that the H2 O2 -treated and control LBs had similar shapes, lens capsule, and monolayer lens epithelial cell (LEC) structures. However, we were unable to do further assessment of the UV-treated LBs as the structures of LBs were easily damaged when treated with UV radiation. Cells containing aggregated protein (αA-crystallin and αB-crystallin) puncta were more abundant in the H2 O2 -treated LBs as compared with control LBs. Moreover, LC3B expression decreased with age in anterior lens capsules obtained from age-related cataracts (ARCs) patients as compared with LC3B levels in primary LECs, which is consistent with that LC3B expression in LBs was lower on D45 than on D25. Our study found that human iPSCs-derived LBs became cloudy with time which was accompanied by protein aggregation, and this phenomenon was accelerated by H2 O2 , suggesting that LBs with extending culture may serve as a human model for in vitro ARCs.
Collapse
Affiliation(s)
- Zhenwei Qin
- Zhejiang Provincial Key Lab of Ophthalmology, Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lifang Zhang
- Zhejiang Provincial Key Lab of Ophthalmology, Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Danni Lyu
- Zhejiang Provincial Key Lab of Ophthalmology, Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jiayong Li
- Zhejiang Provincial Key Lab of Ophthalmology, Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Qiaomei Tang
- Zhejiang Provincial Key Lab of Ophthalmology, Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Houfa Yin
- Zhejiang Provincial Key Lab of Ophthalmology, Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhijian Chen
- Department of Environmental and Occupational Health, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang, China
| | - Ke Yao
- Zhejiang Provincial Key Lab of Ophthalmology, Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Science, Beijing, China
| | - Qiuli Fu
- Zhejiang Provincial Key Lab of Ophthalmology, Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Science, Beijing, China
| |
Collapse
|
37
|
Sorkou KΝ, Manthou ME, Meditskou S, Ziakas N, Tsaousis KT, Tsinopoulos IT. Severe Abnormalities of Lens Epithelial Cells in Exfoliation Syndrome: A Transmission Electron Microscopy Study of Patients with Age-Related Cataract. ACTA ACUST UNITED AC 2019; 55:medicina55060235. [PMID: 31159315 PMCID: PMC6631419 DOI: 10.3390/medicina55060235] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/18/2019] [Accepted: 05/30/2019] [Indexed: 12/25/2022]
Abstract
Background and objectives: The aim of this study was to examine via electron microscopy the lens epithelial cells in age-related cataracts and compare the findings between patients with and without exfoliation syndrome, in the Greek population. Materials and Methods: Twenty-one patients with age-related cataracts, older than 60 years, were included in the study. Eleven of them also suffered from exfoliation syndrome. Anterior lens capsules, obtained during phacoemulsification, were examined with a transmission electron microscope. Results: In all cases, ultrastructural features of diffuse intracellular and extracellular oedema were noticed to a varying degree and transparent vacuoles were detected. Often, there was more than one layer of cells, giving the impression that healthier cells tried to cover neighboring cells presenting extensive damage. Commonly, cells lost their regular shape and appeared with expanded nuclei carrying dense granules. Apoptotic cells were also detected. The epithelial cells frequently were completely destroyed or absent, exhibiting loose connections amongst them or with the basement membrane. In exfoliation syndrome (XFS) patients the alterations were more severe. Additionally, the lens epithelial cells (LECs) apical cell membrane appeared with varying distances from the basement membrane, due to different cell "heights", creating an irregular margin of the epithelium (p<0.05). Conclusion: Transmission electron microscope (TEM) examination revealed ultrastructural abnormalities in all patients' lens epithelia, more extended and more frequently observed in XFS group. In all cases, the lesions were comparable to those described in severe pathologies, all of which were excluded from the study. Environmental factors such as increased ultraviolet B (UVB) radiation exposure in Mediterranean countries, genetic factors, epigenetic factors, or all of them, could contribute to these alterations. Further epidemiological and molecular biology research is needed, so as to justify these results.
Collapse
Affiliation(s)
- Konstantina Ν. Sorkou
- Laboratory of Histology and Embryology, Medical School, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;
- 2nd Department of Ophthalmology, Medical School, Papageorgiou Hospital, Agiou Pavlou 76, 56429, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.Z.); (K.T.T.); (I.T.T.)
- Correspondence: (K.N.S.); or (M.E.M.); Tel.: +30-6948467765 (K.N.S.); +30-6972296839 (M.E.M.)
| | - Maria Eleni Manthou
- Laboratory of Histology and Embryology, Medical School, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;
- Correspondence: (K.N.S.); or (M.E.M.); Tel.: +30-6948467765 (K.N.S.); +30-6972296839 (M.E.M.)
| | - Soultana Meditskou
- Laboratory of Histology and Embryology, Medical School, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;
| | - Nikolaos Ziakas
- 2nd Department of Ophthalmology, Medical School, Papageorgiou Hospital, Agiou Pavlou 76, 56429, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.Z.); (K.T.T.); (I.T.T.)
| | - Konstantinos T. Tsaousis
- 2nd Department of Ophthalmology, Medical School, Papageorgiou Hospital, Agiou Pavlou 76, 56429, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.Z.); (K.T.T.); (I.T.T.)
| | - Ioannis T. Tsinopoulos
- 2nd Department of Ophthalmology, Medical School, Papageorgiou Hospital, Agiou Pavlou 76, 56429, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.Z.); (K.T.T.); (I.T.T.)
| |
Collapse
|
38
|
Post M, Lubiński W, Lubiński J, Krzystolik K, Baszuk P, Muszyńska M, Marciniak W. Serum selenium levels are associated with age-related cataract. Ann Agric Environ Med 2018; 25:443-448. [PMID: 30260193 DOI: 10.26444/aaem/90886] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE The aim of the study is to analyse correlations between age-related cataract (ARC), serum selenium levels and glutathione peroxidase gene 1 and 4 (GPX-1 and GPX-4). MATERIAL AND METHODS A total sample of 275 participants were enrolled into the study: group A, 94 subjects elligible for ARC surgery, and group B, 181 volunteers without ocular symptoms, gender-, age-, and smoking- status and volume-matched at 1:2 with subjects in group A. All participants (n=275) were divided according to the Lens Opacities Classification System III (LOCS III) into: 1) study group (subjects with clinically significant cataract; N≥3 or C≥3 or P≥2), 2) control group (controls with clinically non-significant cataract; N<3 and C<3 and P<2). The single nucleotide polymorphisms of GPX-1 and GPX-4 were assessed using Real Time PCR. Serum selenium levels were assayed using Inductively Coupled Plasma Mass Spectrometry. RESULTS Low selenium levels significantly predicted any age-related cataract (OR 7.969; p<.01), nuclear cataract (OR 12.823; p<.01) and cortical cataract (OR 3.31; p<.01). There was no significant effect of gender, age, SNP GPX-1 and SNP GPX-4 on the prevalence of age-related nuclear, cortical and posterior sub-capsular cataract. Serum selenium levels of 75-85 µg/L were associated with the lowest prevalence of ARC. CONCLUSIONS Due to a confirmed association between serum selenium levels and age-related cataract, low serum selenium levels may constitute a potential risk factor of age-related cataract.
Collapse
Affiliation(s)
- Michał Post
- 2nd Department of Ophthalmology, Pomeranian Medical University, Szczecin, Poland.
| | - Wojciech Lubiński
- 2nd Department of Ophthalmology, Pomeranian Medical University, Szczecin, Poland.
| | - Jan Lubiński
- Department of Genetics and Pathomorphology, Pomeranian Medical University, Szczecin, Poland.
| | - Karol Krzystolik
- 1st Department of Ophthalmology, Pomeranian Medical University, Szczecin, Poland.
| | - Piotr Baszuk
- Department of Genetics and Pathomorphology, Pomeranian Medical University, Szczecin, Poland.
| | - Magdalena Muszyńska
- Department of Genetics and Pathomorphology, Pomeranian Medical University, Szczecin, Poland.
| | - Wojciech Marciniak
- Department of Genetics and Pathomorphology, Pomeranian Medical University, Szczecin, Poland.
| |
Collapse
|
39
|
Abstract
OBJECTIVE Obesity and a high-fat diet have been found to be associated with an increased risk of age-related cataract (ARC). Thus, this study aimed to investigate whether serum lipid levels are associated with the incidence of ARC. DESIGN Cross-sectional, case-control study. SETTING EyeandENT Hospital of Fudan University, Shanghai, China. PARTICIPANTS A total of 219 ARC (male=94, female=125) subjects and 218 (male=110, female=118) normal control subjects were recruited in this study. OUTCOME MEASURES A detailed eye and systematic examination was performed. Serum high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglyceride (TG) and cholesterol (CHO) levels were measured by enzymatic colorimetry, and serum apolipoprotein A (APOA) and apoB (APOB) levels were measured by immunoturbidimetry. The subgroups were classified according to gender and types of disease (cortical, nuclear and posterior subcapsular cataract). Logistic regression analyses were performed to identify the association between serum lipid levels and ARC. RESULTS The serum LDL-C, TG, CHO and APOA levels were significantly higher (p<0.05) in the ARC group than in the control group. A similar result was observed when the serum lipid concentrations were compared between the ARC and control groups both in male and female subgroups. A higher proportion of individuals in the ARC group had higher LDL-C, TG, CHO and APOA levels (fold=3.45, 17.37, 3.27 and11.91, respectively; p<0.0001 in all cases) than in the control group. Results of the logistic regression analyses revealed that high LDL-C (ORs=1.897, 95% CI 0.960 to 3.678) and TG (OR=1.854, 95% CI 1.232 to 2.791) were the independent risk factors for ARC. CONCLUSION The serum LDL-C and TG levels were demonstrated to be independent risk factors for ARC.
Collapse
Affiliation(s)
- Shengjie Li
- Department of Clinical Laboratory, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Danhui Li
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Medical School, Xi’an Jiaotong University, Xi’an, China
| | - Yudong Zhang
- Department of Clinical Laboratory, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jisen Teng
- Department of Clinical Laboratory, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Mingxi Shao
- Department of Clinical Laboratory, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wenjun Cao
- Department of Clinical Laboratory, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| |
Collapse
|
40
|
Lu B, Christensen IT, Ma LW, Yu T, Jiang LF, Wang CX, Feng L, Zhang JS, Yan QC, Wang XL. miR-211 regulates the antioxidant function of lens epithelial cells affected by age-related cataracts. Int J Ophthalmol 2018; 11:349-353. [PMID: 29600165 DOI: 10.18240/ijo.2018.03.01] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 01/10/2018] [Indexed: 02/05/2023] Open
Abstract
AIM To investigate the effects and mechanism of miR-211 in mediating the antioxidant function of lens epithelial cells affected by age-related cataracts. METHODS Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect miR-211 expression in the anterior lens capsules of healthy people, the anterior lens capsules of patients with age-related cataracts, and human epithelial cell line (SRA01/04) cells exposed to oxidative stress. A 2', 7'-dichloro-fluorescein diacetate (DCFH-DA) probe was used to measure the levels of endogenous reactive oxygen species (ROS) in human lens epithelial cells (hLECs) exposed to 400 µmol/L H2O2 for 1h. SRA01/04 cells were transfected with either miR-211 mimics, mimic controls, miR-211 inhibitors or inhibitor controls. After 72h, these cells were exposed to 400 µmol/L H2O2 for 1h, then p53 and Bax mRNA expression were measured using RT-qPCR. p53 and Bax protein expression were also measured by Western blotting analysis. Finally, cell viability was assessed using an MTS assay. RESULTS Compared to the control group, expression of miR-211 in the anterior lens capsules of age-related cataract patients and in SRA01/04 cells exposed to oxidative stress was significantly increased (P<0.001). Levels of endogenous ROS were significantly elevated in hLECs exposed to oxidative stress (P<0.001). Compared to the mimic control group, the hLECs in the miR-211 mimic group expressed significantly higher levels of p53 and Bax mRNA and protein while cell viability was significantly reduced (P<0.001). Conversely, p53 and Bax mRNA and protein expression were significantly reduced in the miR-211 inhibitor group as compared to the control group, while the cells in this group had much higher levels of cell viability (P<0.001). CONCLUSION miR-211 is upregulated in the anterior lens capsules of age-related cataract patients. miR-211 decreased the antioxidative stress capacity of lens epithelial cells by upregulating p53 and Bax, while inhibiting cell proliferation and repair. This finding suggests that miR-211 may play a key role in the development of age-related cataracts.
Collapse
Affiliation(s)
- Bo Lu
- Department of Ophthalmology, the Fourth Affiliated Hospital of China Medical University; Key Laboratory of Lens Research of Liaoning Province, Eye Hospital of China Medical University, Shenyang 110005, Liaoning Province, China
| | - Ian T Christensen
- University of Utah School of Medicine, Salt Lake City, Utah 84132, USA
| | - Li-Wei Ma
- Department of Ophthalmology, the Fourth Affiliated Hospital of China Medical University; Key Laboratory of Lens Research of Liaoning Province, Eye Hospital of China Medical University, Shenyang 110005, Liaoning Province, China
| | - Tao Yu
- Department of Medical Imaging, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, Liaoning Province, China
| | - Ling-Feng Jiang
- Department of Ophthalmology, the Fourth Affiliated Hospital of China Medical University; Key Laboratory of Lens Research of Liaoning Province, Eye Hospital of China Medical University, Shenyang 110005, Liaoning Province, China
| | - Chun-Xia Wang
- Department of Ophthalmology, the Fourth Affiliated Hospital of China Medical University; Key Laboratory of Lens Research of Liaoning Province, Eye Hospital of China Medical University, Shenyang 110005, Liaoning Province, China
| | - Li Feng
- Department of Ophthalmology, the Fourth Affiliated Hospital of China Medical University; Key Laboratory of Lens Research of Liaoning Province, Eye Hospital of China Medical University, Shenyang 110005, Liaoning Province, China
| | - Jin-Song Zhang
- Department of Ophthalmology, the Fourth Affiliated Hospital of China Medical University; Key Laboratory of Lens Research of Liaoning Province, Eye Hospital of China Medical University, Shenyang 110005, Liaoning Province, China
| | - Qi-Chang Yan
- Department of Ophthalmology, the Fourth Affiliated Hospital of China Medical University; Key Laboratory of Lens Research of Liaoning Province, Eye Hospital of China Medical University, Shenyang 110005, Liaoning Province, China
| | - Xin-Ling Wang
- Department of Ophthalmology, the Fourth Affiliated Hospital of China Medical University; Key Laboratory of Lens Research of Liaoning Province, Eye Hospital of China Medical University, Shenyang 110005, Liaoning Province, China
| |
Collapse
|
41
|
Fan F, Zhuang J, Zhou P, Liu X, Luo Y. MicroRNA-34a promotes mitochondrial dysfunction-induced apoptosis in human lens epithelial cells by targeting Notch2. Oncotarget 2017; 8:110209-110220. [PMID: 29299142 PMCID: PMC5746377 DOI: 10.18632/oncotarget.22597] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 07/18/2017] [Indexed: 02/06/2023] Open
Abstract
Purpose Human lens epithelial cell (HLEC) apoptosis is a common pathogenic mechanism in age-related cataracts (ARC). While the function of microRNAs (miRNAs) in the eye is beginning to be explored using miRNA expression array, the role of miR-34a in regulating HLEC apoptosis remains unknown and requires further investigation. Methods Quantitative reverse-transcript polymerase chain reaction (RT-PCR) was used to determine the expression level of miR-34a in cataractous and control samples. MiR-34a mimics and small interfering RNAs were transfected into SRA01/04. Cell apoptosis and oxidative stress were assessed by flow cytometry. The Dual-Luciferase Reporter Assay System was used to confirm whether miR-34a bound to the 3'-UTR of the target gene and blocked its activity. The potential roles of the identified target genes in apoptosis and mitochondria dysfunction were also evaluated. Results The expression of miR-34a increased in lens epithelial samples of ARC compared with the transparent group (cataract 2.41±0.81 vs. control 1.20±0.44, P=0.005). In cultured SRA01/04, miR-34a increased reactive oxygen species production and induced apoptosis (early apoptosis: 45.55%±5.96% vs. 15.85%±4.93%, P<0.01; late apoptosis: 6.10%±2.67% vs. 0.95%±0.42%, P<0.01). Overexpression of miR-34a promoted mitochondria-mediated apoptosis through activation of caspase-9, disruption of the mitochondrial membrane potential, blocking of mitochondrial energy metabolism and enhancement of cytochrome C release. Furthermore, Notch1 and Notch2 were confirmed as putative targets of miR-34a, but only Notch2 was verified as the effector that triggered mitochondria-mediated apoptosis. Conclusion MicroRNA-34a is increased in the cataractous lens and triggers mitochondria-mediated apoptosis and oxidative stress by suppressing Notch2.
Collapse
Affiliation(s)
- Fan Fan
- Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,Myopia Key Laboratory of The Health Ministry and Visual Impairment and Reconstruction Key Laboratory of Shanghai, Shanghai, China
| | - Jianhui Zhuang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Peng Zhou
- Parkway Health Hongqiao Medical Center, Shanghai, China
| | - Xin Liu
- Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,Myopia Key Laboratory of The Health Ministry and Visual Impairment and Reconstruction Key Laboratory of Shanghai, Shanghai, China
| | - Yi Luo
- Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,Myopia Key Laboratory of The Health Ministry and Visual Impairment and Reconstruction Key Laboratory of Shanghai, Shanghai, China
| |
Collapse
|
42
|
Tang Y, Wang X, Wang J, Jin L, Huang W, Luo Y, Lu Y. Risk factors of age-related cataract in a Chinese adult population: the Taizhou Eye Study. Clin Exp Ophthalmol 2017; 46:371-379. [PMID: 28842942 DOI: 10.1111/ceo.13040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 08/12/2017] [Accepted: 08/16/2017] [Indexed: 01/22/2023]
Abstract
IMPORTANCE Cataract risk factors data will provide epidemic evidence for cataract prevention. BACKGROUND This study aimed to study the risk factors for age-related cataract in a Chinese adult population. DESIGN This is a population-based, cross-sectional study. PARTICIPANTS A total of 10 234 eligible subjects ≥45 years old (response rate: 78.1%) were included in the study. METHODS We conducted detailed eye examinations including presenting visual acuity, best-corrected visual acuity, slit lamp examination of lens opacities and fundus examination. Questionnaires about lifestyle were administered. Measurements of blood pressure, heart rate and body mass index were collected. Serological metabolic indicators, including fasting blood glucose, triglycerides, cholesterol, lipoprotein, were also evaluated. We used stepwise multivariate logistic regression model to evaluate the association of these risk factors with any cataract and subtypes of cataract. MAIN OUTCOME MEASURES Odds ratios of risk factors for cataract were calculated. RESULTS For any cataract, we found age, gender (female), increased outdoor activity, no outdoor eye protection, high myopia, high low-density lipoprotein, low high-density lipoprotein, lower education level and increased pickled food intake were independent risk factors. When further examined the risk factors of different subtypes of cataract, we found that these risk factors also existed, but there were slight differences among different subtypes. In addition, for cortical cataract, lower annual family income and high diastolic pressure were additional independent risk factors. CONCLUSIONS AND RELEVANCE Reduced outdoor activity, outdoor eye protection, prevention of high myopia, higher education level, controlled blood pressure, improved high-density lipoprotein and low-density lipoprotein levels and reduced pickled food intake may help to reduce the risk of age-related cataract development.
Collapse
Affiliation(s)
- Yating Tang
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China.,Myopia Key Laboratory of the Health Ministry & Visual Impairment and Reconstruction Key Laboratory of Shanghai, Shanghai, China
| | - Xiaofeng Wang
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Fudan-Taizhou Institute of Health Sciences, Taizhou, China
| | - Jiucun Wang
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Fudan-Taizhou Institute of Health Sciences, Taizhou, China
| | - Li Jin
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Fudan-Taizhou Institute of Health Sciences, Taizhou, China
| | - Wei Huang
- Department of Ophthalmology, Taixing People's Hospital, Taizhou, China
| | - Yi Luo
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China.,Myopia Key Laboratory of the Health Ministry & Visual Impairment and Reconstruction Key Laboratory of Shanghai, Shanghai, China
| | - Yi Lu
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China.,Myopia Key Laboratory of the Health Ministry & Visual Impairment and Reconstruction Key Laboratory of Shanghai, Shanghai, China
| |
Collapse
|
43
|
Mynampati BK, Ghosh S, Muthukumarappa T, Ram J. Evaluation of antioxidants and argpyrimidine in normal and cataractous lenses in north Indian population. Int J Ophthalmol 2017; 10:1094-1100. [PMID: 28730112 DOI: 10.18240/ijo.2017.07.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 01/19/2017] [Indexed: 01/18/2023] Open
Abstract
AIM To assess the level of glutathione, thioltransferase, and argpyrimidine in nuclear and cortical cataractous lenses as well as in the clear lenses in the north Indian population. METHODS Human cataractous lenses were collected from the patients who underwent extracapsular cataract extraction surgery; clear lenses were collected from the freshly donated eye bank eyes. Antioxidant molecules such as glutathione and thioltransferase enzyme activity were measured; simultaneously in these lenses a blue fluorophore argpyrimidine, an advanced glycation end (AGE) product level was assessed using high performance liquid chromatography (HPLC). RESULTS The protein concentration was found to be present at higher levels in the control lenses compared to cataract lenses. A significant decrease in the glutathione level was observed in the nuclear cataractous lenses compared to cortical cataractous (P=0.004) and clear lenses (P≤0.005), but no significant change in the level of antioxidant enzyme thioltransferase was observed. Further, argpyrimidine a blue fluorophore (AGE) was found to be significantly higher in the nuclear cataract (P=0.013) compared to cortical cataract lenses. CONCLUSION Antioxidants such as glutathione significantly decrease in age-related nuclear and cortical cataract and an AGE, argpyrimidine are present at significantly higher levels in nuclear cataract.
Collapse
Affiliation(s)
- Bharani K Mynampati
- Department of Ophthalmology, Advanced Eye Center, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Sujata Ghosh
- Department of Experimental Medicine & Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Thungapathra Muthukumarappa
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Jagat Ram
- Department of Ophthalmology, Advanced Eye Center, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| |
Collapse
|
44
|
Liu B, Gao J, Lyu BC, Du SS, Pei C, Zhu ZQ, Ma B. Expressions of TGF-β2, bFGF and ICAM-1 in lens epithelial cells of complicated cataract with silicone oil tamponade. Int J Ophthalmol 2017; 10:1034-1039. [PMID: 28730103 DOI: 10.18240/ijo.2017.07.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 02/07/2017] [Indexed: 11/23/2022] Open
Abstract
AIM To investigate the expression differences of transforming growth factor-β2 (TGF-β2), basic fibroblast growth factor (bFGF) and intercellular cell-adhesion molecule-1 (ICAM-1) in lens epithelial cells (LECs) of complicated cataract with silicone oil tamponade and age-related cataract. METHODS Totally 150 eyes of 150 patients (aged 35 to 77y) were investigated, including 75 patients with complicated cataract after silicone oil tamponade and 75 patients with age-related cataract. The central piece of anterior capsules was collected during cataract surgery. TGF-β2, bFGF and ICAM-1 were detected in the 60 specimens of the two groups by immunohistochemistry. The expression levels of the three kinds of messenger ribonucleic acid (mRNA) were determined by real-time quantitative reverse transcription-polymerase chain reaction in the 90 specimens of the two groups. RESULTS TGF-β2 was detected in the cytomembrane and cytoplasm of the LECs and bFGF was detected in the nucleus. ICAM-1 was positive in the cytomembrane of the LECs and the distribution of positive cells was uneven. The mRNA genes expression of the TGF-β2, bFGF and ICAM-1 was significant differences between the two groups and markedly increased in complicated cataract group (P<0.05). CONCLUSION The up-regulated TGF-β2, bFGF and ICAM-1 maybe associate with the occurrence and development of complicated cataract with silicone oil tamponade.
Collapse
Affiliation(s)
- Bei Liu
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China.,Department of Ophthalmology, the First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Jing Gao
- Department of Ophthalmology, the First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Bo-Chang Lyu
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Shan-Shuang Du
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Cheng Pei
- Department of Ophthalmology, the First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Zhong-Qiao Zhu
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Bo Ma
- Shaanxi Ophthalmic Medical Center, Xi'an No.4 Hospital, the Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| |
Collapse
|
45
|
Chen Y, Wang X, Zhou CD, Wu Q. Evaluation of visual quality of spherical and aspherical intraocular lenses by Optical Quality Analysis System. Int J Ophthalmol 2017; 10:914-918. [PMID: 28730082 DOI: 10.18240/ijo.2017.06.13] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 01/20/2017] [Indexed: 12/12/2022] Open
Abstract
AIM To evaluate the impact of spherical and aspherical intraocular lenses on the postoperative visual quality of age-related cataract patients using Optical Quality Analysis System (OQAS). METHODS Seventy-four eyes with age-related cataracts were randomly divided into spherical and aspherical lens implantation groups. Best-corrected visual acuity (BCVA) was measured preoperatively, one day, one week, two weeks, one month and two months after surgery. A biometric systems analysis using the OQAS objective scattering index (OSI) was performed. RESULTS There were no significant differences in visual acuity (P>0.05) before and after spherical and aspheric lens implantation. There was a negative linear correction between the OSI value and BCVA (r=-0.634, P=0.000), and positive corrections between the OSI value and the lens LOCUS III value of nucleus color (NC), nucleus opacity (NO), cortex (C) and posterior lens capsular (P) (r=0.704, P=0.000; r=0.514, P=0.000; r=0.276, P=0.020; r=0.417, P=0.000, respectively). OSI values of spherical vs aspherical lenses were 11.5±3.6 vs 11.8±3.4, 4.1±0.9 vs 3.3±0.8, 3.5±0.9 vs 2.7±0.7, 3.3±0.8 vs 2.6±0.7, 3.2±0.7 vs 2.5±0.8, and 3.2±0.8 vs 2.5±0.8 before and 1d, 1, 2wk, 1 and 2mo after surgery, respectively. All time points varied significantly (P<0.01) between the two groups. CONCLUSION Aspherical IOLs does not significantly affect visual acuity compared with spherical IOLs. The OSI value, was significantly lower in the aspherical lens group compared with the spherical lens. This study shows that objective visual quality of aspheric IOLs is better than that of the spherical lens by means of OQAS biological measurement method.
Collapse
Affiliation(s)
- Yan Chen
- Department of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Xue Wang
- Department of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Chuan-Di Zhou
- Department of Ophthalmology, Shanghai Jiao Tong University Affiliated First People's Hospital, Shanghai 200080, China
| | - Qiang Wu
- Department of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| |
Collapse
|
46
|
Rong H, Gu S, Zhang G, Kang L, Yang M, Zhang J, Shen X, Guan H. MiR-2964a-5p binding site SNP regulates ATM expression contributing to age-related cataract risk. Oncotarget 2017; 8:84945-84957. [PMID: 29156695 PMCID: PMC5689585 DOI: 10.18632/oncotarget.17600] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 04/11/2017] [Indexed: 01/12/2023] Open
Abstract
This study was to explore the involvement of DNA repair genes in the pathogenesis of age-related cataract (ARC). We genotyped nine single nucleotide polymorphisms (SNPs) of genes responsible to DNA double strand breaks (DSBs) in 804 ARC cases and 804 controls in a cohort of eye diseases in Chinese population and found that the ataxia telangiectasia mutated (ATM) gene-rs4585:G>T was significantly associated with ARC risk. An in vitro functional test found that miR-2964a-5p specifically down-regulated luciferase reporter expression and ATM expression in the cell lines transfected with rs4585 T allele compared to rs4585 G allele. The molecular assay on human tissue samples discovered that ATM expression was down-regulated in majority of ARC tissues and correlated with ATM genotypes. In addition, the Comet assay of cellular DNA damage of peripheral lymphocytes indicated that individuals carrying the G allele (GG/GT) of ATM-rs4585 had lower DNA breaks compared to individuals with TT genotype. These findings suggested that the SNP rs4585 in ATM might affect ARC risk through modulating the regulatory affinity of miR-2964a-5p. The reduced DSBs repair might be involved in ARC pathogenesis.
Collapse
Affiliation(s)
- Han Rong
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China.,Eye Department, The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Shanshan Gu
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Guowei Zhang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Lihua Kang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Mei Yang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Junfang Zhang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xinyue Shen
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Huaijin Guan
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| |
Collapse
|
47
|
Gu S, Rong H, Zhang G, Kang L, Yang M, Guan H. Functional SNP in 3'-UTR MicroRNA-Binding Site of ZNF350 Confers Risk for Age-Related Cataract. Hum Mutat 2016; 37:1223-1230. [PMID: 27586871 DOI: 10.1002/humu.23073] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 08/10/2016] [Accepted: 08/29/2016] [Indexed: 12/28/2022]
Abstract
Many studies have suggested that individual susceptibility to age-related cataract (ARC) may be associated with DNA sequence polymorphisms affecting gene regulation. As DNA repair is implicated in ARC pathogenesis and single-nucleotide polymorphisms (SNPs) in the 3'-terminal untranslated region (3'-UTR) targeted by microRNAs (miRNAs) can alter the gene function, we hypothesize that the miRNA-binding SNPs (miRSNPs) in DNA double-strand break repair (DSBR) and nucleotide excision repair (NER) pathways might associate with ARC risk. We genotyped nine miRSNPs of eight genes in DSBR and NER pathways in Chinese population and found that ZNF350- rs2278414:G>A was significantly associated with ARC risk. Even though the Comet assay of cellular DNA damage indicated that all the subtypes of ARC patients had more DNA breaks in peripheral lymphocytes than the controls independent of rs2278414 genotypes, individuals carrying the variant A allele (AA and AG) had lower ZNF350 mRNA levels compared with individuals with GG genotype. Moreover, the in vitro experiment indicated that miR-21-3p and miR-150-5p specifically downregulated luciferase reporter expression in the cell lines transfected with rs2278414 A allele compared with rs2278414 G. These results suggested that the association of SNP rs2278414 with ARC might involve an altered miRNA regulation of ZNF350.
Collapse
Affiliation(s)
- Shanshan Gu
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Han Rong
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Guowei Zhang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Lihua Kang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Mei Yang
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Huaijin Guan
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China.
| |
Collapse
|
48
|
Eom SY, Yim DH, Kim JH, Chae JB, Kim YD, Kim H. A pilot exome-wide association study of age-related cataract in Koreans. J Biomed Res 2016; 30:186-90. [PMID: 27533928 PMCID: PMC4885165 DOI: 10.7555/jbr.30.2016k0002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 01/26/2016] [Accepted: 01/30/2016] [Indexed: 01/19/2023] Open
Abstract
Age-related cataract (ARC) is the most common cause of visual impairment and blindness worldwide. A previous study reported that genetic factors could explain approximately 50% of the heritability of cataract. However, a genetic predisposition to ARC and the contributing factors have not yet been elucidated in the Korean population. In this study, we assessed the influence of genetic polymorphisms on the risk of ARC in Koreans, including 156 cataract cases and 138 healthy adults. We conducted an exome-wide association study using Illumina Human Exome-12v1.2 platform to screen 244,770 single nucleotide polymorphisms (SNPs). No SNPs reached exome-wide significance level of association (P < 1×10−6). B3GNT4 rs7136356 showed the most significant association with ARC (P = 6.54×10−5). Two loci (MUC16 and P2RY2) among the top 20 ARC-associated SNPs were recognized as probably linked to cataractogenesis. Functions of these genes were potentially related to regulating dehydration or homeostasis of the eyes, and showed a potential association with dry eye disease. This finding suggests that mucin- and dry eye disease-related genes may play a significant role in cataractogenesis. Our study provides insight into the genetic predisposition of ARC in Koreans. Additional studies with larger sample sizes are required to confirm the results of this study.
Collapse
Affiliation(s)
- Sang-Yong Eom
- Center for Farmer's Safety and Health, Chungbuk National University Hospital, Cheongju, Chungbuk 28644, Republic of Korea.,Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Dong-Hyuk Yim
- Center for Farmer's Safety and Health, Chungbuk National University Hospital, Cheongju, Chungbuk 28644, Republic of Korea.,Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Jung-Hyun Kim
- Department of Optometry, Daejeon Health Science College, Daejeon 34504, Republic of Korea
| | - Joo-Byung Chae
- Department of Ophthalmology, College of Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Yong-Dae Kim
- Center for Farmer's Safety and Health, Chungbuk National University Hospital, Cheongju, Chungbuk 28644, Republic of Korea.,Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Heon Kim
- Center for Farmer's Safety and Health, Chungbuk National University Hospital, Cheongju, Chungbuk 28644, Republic of Korea.,Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea.
| |
Collapse
|
49
|
Fu Q, Qin Z, Yu J, Yu Y, Tang Q, Lyu D, Zhang L, Chen Z, Yao K. Effects of senescent lens epithelial cells on the severity of age-related cortical cataract in humans: A case-control study. Medicine (Baltimore) 2016; 95:e3869. [PMID: 27336873 PMCID: PMC4998311 DOI: 10.1097/md.0000000000003869] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The aging of lens progenitor cell has been repeatedly proposed to play a key role in age-related cataracts (ARCs), but the mechanism is far from being understood. The present study aims to investigate the relationship between aging of lens progenitor/epithelial cells and the 4 subtypes of ARCs in humans.Lens capsules, which were collected from ARC patients during surgery, were divided into 3 groups according to the age of patients (50-60, 60-80, and >80 years). The expressions of lens progenitor cell-related markers Sox2, Abcg2, and Ki67 were first examined in human lens epithelial cells (HLECs) in situ. Then, the percentage of senescent and SA-β-gal HLECs isolated from lens capsules were quantified. Finally, the potential relationships between the percentage of senescent (and SA-β-gal) HLECs and the severity of ARCs were analyzed.Ki67, Sox2, and Abcg2 HLECs in lens capsules were clearly more abundant in young people than in patients older than 50 years, and they were almost absent in patients older than 60 years. The percentage of primary HLECs with aging morphology increased with age, consistent with the results of SA-β-gal primary HLECs. Only cortical cataract classification was found to be strongly related to the percentage of SA-β-gal and senescent HLECs.Our study gave the initial evidence on the dynamical change of lens stem/progenitor cells in human lens capsule with age and suggested that lens progenitor/epithelial cell aging is important in the severity of cortical cataracts.
Collapse
Affiliation(s)
- Qiuli Fu
- Eye Center of the 2nd Affiliated Hospital, Medical College of Zhejiang University
- Zhejiang Provincial Key Lab of Ophthalmology
| | - Zhenwei Qin
- Eye Center of the 2nd Affiliated Hospital, Medical College of Zhejiang University
- Zhejiang Provincial Key Lab of Ophthalmology
| | - Jiexin Yu
- Eye Center of the 2nd Affiliated Hospital, Medical College of Zhejiang University
- Zhejiang Provincial Key Lab of Ophthalmology
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Provincial Hospital of TCM
| | - Yinhui Yu
- Eye Center of the 2nd Affiliated Hospital, Medical College of Zhejiang University
- Zhejiang Provincial Key Lab of Ophthalmology
| | - Qiaomei Tang
- Eye Center of the 2nd Affiliated Hospital, Medical College of Zhejiang University
- Zhejiang Provincial Key Lab of Ophthalmology
| | - Danni Lyu
- Eye Center of the 2nd Affiliated Hospital, Medical College of Zhejiang University
- Zhejiang Provincial Key Lab of Ophthalmology
| | - Lifang Zhang
- Eye Center of the 2nd Affiliated Hospital, Medical College of Zhejiang University
- Zhejiang Provincial Key Lab of Ophthalmology
| | - Zhijian Chen
- Department of Environmental and Occupational Health, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang Province, China
| | - Ke Yao
- Eye Center of the 2nd Affiliated Hospital, Medical College of Zhejiang University
- Zhejiang Provincial Key Lab of Ophthalmology
| |
Collapse
|
50
|
Wei L, Liang G, Cai C, Lv J. Association of vitamin C with the risk of age-related cataract: a meta-analysis. Acta Ophthalmol 2016; 94:e170-6. [PMID: 25735187 DOI: 10.1111/aos.12688] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 01/12/2015] [Indexed: 11/29/2022]
Abstract
PURPOSE Whether vitamin C is a protective factor for age-related cataract remains unclear. Thus, we conducted a meta-analysis to summarize the evidence from epidemiological studies of vitamin C and the risk of age-related cataract. METHODS Pertinent studies were identified by searching in PubMed and in Webscience. The random effect model was used to combine the results. Meta-regression and subgroups analyses were used to explore potential sources of between-study heterogeneity. Publication bias was estimated using Egger's regression asymmetry test. RESULTS Finally, 15 articles with 20 studies for vitamin C intake and eight articles with 10 studies for serum ascorbate were included in this meta-analysis. The relative risk (RR) and 95% confidence interval of cataract for the highest versus the lowest category of vitamin C intake was 0.814 (0.707-0.938), and the associations were significant in America and Asia. Significant association of cataract risk with highest versus the lowest category of serum ascorbate was found in general [0.704 (0.564-0.879)]. Inverse associations were also found between serum ascorbate and nuclear cataract and posterior subcapsular cataract. CONCLUSIONS Higher vitamin C intake and serum ascorbate might be inversely associated with risk of cataract. Vitamin C intake should be advocated for the primary prevention of cataract.
Collapse
Affiliation(s)
- Lin Wei
- Department of Ophthalmology; The Second Artillery General Hospital; Beijing China
| | - Ge Liang
- Department of Ophthalmology; The Second Artillery General Hospital; Beijing China
| | - Chunmei Cai
- Department of Ophthalmology; The Second Artillery General Hospital; Beijing China
| | - Jin Lv
- Department of Ophthalmology; The Second Artillery General Hospital; Beijing China
| |
Collapse
|