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Gerwin J, Torres-Dowdall J, Brown TF, Meyer A. Expansion and Functional Diversification of Long-Wavelength-Sensitive Opsin in Anabantoid Fishes. J Mol Evol 2024:10.1007/s00239-024-10181-0. [PMID: 38861038 DOI: 10.1007/s00239-024-10181-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 05/25/2024] [Indexed: 06/12/2024]
Abstract
Gene duplication is one of the most important sources of novel genotypic diversity and the subsequent evolution of phenotypic diversity. Determining the evolutionary history and functional changes of duplicated genes is crucial for a comprehensive understanding of adaptive evolution. The evolutionary history of visual opsin genes is very dynamic, with repeated duplication events followed by sub- or neofunctionalization. While duplication of the green-sensitive opsins rh2 is common in teleost fish, fewer cases of multiple duplication events of the red-sensitive opsin lws are known. In this study, we investigate the visual opsin gene repertoire of the anabantoid fishes, focusing on the five lws opsin genes found in the genus Betta. We determine the evolutionary history of the lws opsin gene by taking advantage of whole-genome sequences of nine anabantoid species, including the newly assembled genome of Betta imbellis. Our results show that at least two independent duplications of lws occurred in the Betta lineage. The analysis of amino acid sequences of the lws paralogs of Betta revealed high levels of diversification in four of the seven transmembrane regions of the lws protein. Amino acid substitutions at two key-tuning sites are predicted to lead to differentiation of absorption maxima (λmax) between the paralogs within Betta. Finally, eye transcriptomics of B. splendens at different developmental stages revealed expression shifts between paralogs for all cone opsin classes. The lws genes are expressed according to their relative position in the lws opsin cluster throughout ontogeny. We conclude that temporal collinearity of lws expression might have facilitated subfunctionalization of lws in Betta and teleost opsins in general.
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Affiliation(s)
- Jan Gerwin
- Zoology and Evolutionary Biology, Department of Biology, University of Konstanz, Konstanz, Germany
- German Cancer Research Center (DKFZ), Division Signaling and Functional Genomics and Department of Cell and Molecular Biology, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Julián Torres-Dowdall
- Zoology and Evolutionary Biology, Department of Biology, University of Konstanz, Konstanz, Germany.
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA.
| | - Thomas F Brown
- Max Planck Institute of Molecular Cellular Biology and Genetics, Dresden, Germany
- Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Axel Meyer
- Zoology and Evolutionary Biology, Department of Biology, University of Konstanz, Konstanz, Germany.
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2
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Yamamoto ALC, Corrêa MDP, Torres RR, Martins FB, Godin-Beekmann S. Projected changes in ultraviolet index and UV doses over the twenty-first century: impacts of ozone and aerosols from CMIP6. Photochem Photobiol Sci 2024:10.1007/s43630-024-00594-7. [PMID: 38762827 DOI: 10.1007/s43630-024-00594-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024]
Abstract
This study evaluated the health-related weighted ultraviolet radiation (UVR) due to the total ozone content (TOC) and the aerosol optical depth (AOD) changes. Clear-sky Ultraviolet Index (UVI), daily doses, and exposure times for erythema induction (Dery and Tery) and vitamin D synthesis (DvitD and TvitD) were computed by a radiative transfer estimator. TOC and AOD data were provided by six Earth System Models (ESMs) from the Coupled Model Intercomparison Project Phase 6 (CMIP6). For projections, we consider four Shared Socioeconomic Pathways scenarios-SSPs (SSP1-2.6, SSP2-4.5, SSP3-7.0, and SSP5-8.5)-and two time-slices (near: 2041-2060 and far future: 2081-2100). UVR projections showed pronounced changes for the summer hemispheres in the far future. TOC increases in mid- and high latitudes of the Southern Hemisphere caused decreases in UVR at the summer solstice. However, projections did not indicate sun-safe exposure conditions in South America, Australia, and Southern Africa. On the contrary, exposure around solar noon from 10 to 20 min will still be sufficient to induce erythema in skin type III individuals throughout this century. In southern Argentina and Chile, the UVR insufficiency for vitamin D synthesis at solar noon in skin type III remains the same during this century at the winter solstice. In the Northern Hemisphere, UVI and Dery at the summer solstice should remain high (UVI ≥ 8; Dery ~ 7.0 kJ m-2) in highly populated locations. Above 45 °N, UVR levels cannot be enough to synthesize vitamin D in skin type III during the boreal winter. Our results show that climate change will affect human health through excess or lack of solar UVR availability.
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Affiliation(s)
| | - Marcelo de Paula Corrêa
- Natural Resources Institute, Federal University of Itajubá, Av. BPS, 1303, Itajubá, MG, 37500-903, Brazil
| | - Roger Rodrigues Torres
- Natural Resources Institute, Federal University of Itajubá, Av. BPS, 1303, Itajubá, MG, 37500-903, Brazil
| | - Fabrina Bolzan Martins
- Natural Resources Institute, Federal University of Itajubá, Av. BPS, 1303, Itajubá, MG, 37500-903, Brazil
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Markoulli M, Fricke TR, Arvind A, Frick KD, Hart KM, Joshi MR, Kandel H, Filipe Macedo A, Makrynioti D, Retallic N, Garcia-Porta N, Shrestha G, Wolffsohn JS. BCLA CLEAR Presbyopia: Epidemiology and impact. Cont Lens Anterior Eye 2024:102157. [PMID: 38594155 DOI: 10.1016/j.clae.2024.102157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
The global all-ages prevalence of epidemiologically-measured 'functional' presbyopia was estimated at 24.9% in 2015, affecting 1.8 billion people. This prevalence was projected to stabilise at 24.1% in 2030 due to increasing myopia, but to affect more people (2.1 billion) due to population dynamics. Factors affecting the prevalence of presbyopia include age, geographic location, urban versus rural location, sex, and, to a lesser extent, socioeconomic status, literacy and education, health literacy and inequality. Risk factors for early onset of presbyopia included environmental factors, nutrition, near demands, refractive error, accommodative dysfunction, medications, certain health conditions and sleep. Presbyopia was found to impact on quality-of-life, in particular quality of vision, labour force participation, work productivity and financial burden, mental health, social wellbeing and physical health. Current understanding makes it clear that presbyopia is a very common age-related condition that has significant impacts on both patient-reported outcome measures and economics. However, there are complexities in defining presbyopia for epidemiological and impact studies. Standardisation of definitions will assist future synthesis, pattern analysis and sense-making between studies.
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Affiliation(s)
- Maria Markoulli
- School of Optometry and Vision Science, UNSW Sydney, Australia.
| | - Timothy R Fricke
- School of Optometry and Vision Science, UNSW Sydney, Australia; Department of Optometry and Vision Science, University of Melbourne, Australia; National Vision Research Institute, Australian College of Optometry, Melbourne, Australia
| | - Anitha Arvind
- Department of Optometry, School of Medical and Allied Sciences, GD Goenka University, India
| | - Kevin D Frick
- Johns Hopkins Carey Business School, USA; Johns Hopkins Bloomberg School of Public Health Departments of International Health and Health Policy and Management, USA; Johns Hopkins School of Medicine, Department of Ophthalmology, USA
| | - Kerryn M Hart
- School of Medicine, Faculty of Health, Deakin University, Australia; Member Support and Optometry Advancement, Optometry Australia, Australia
| | - Mahesh R Joshi
- School of Health Professions, University of Plymouth, United Kingdom
| | - Himal Kandel
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Australia; Sydney Eye Hospital, Australia
| | - Antonio Filipe Macedo
- Department of Medicine and Optometry, Faculty of Health and Life Sciences, Linnaeus University, Sweden; Centre of Physics of Minho and Porto Universities, School of Sciences, University of Minho, Braga, Portugal
| | | | - Neil Retallic
- Specsavers Optical Group, La Villiaze, St. Andrew's, Guernsey, United Kingdom
| | - Nery Garcia-Porta
- Applied Physics Department, Optics and Optometry Faculty, University of Santiago de Compostela, Spain; Institute of Materials (iMATUS) of the University of Santiago de Compostela, Spain
| | - Gauri Shrestha
- Optometry Department, BPK Centre for Ophthalmic Studies, Institute of Medicine, Nepal
| | - James S Wolffsohn
- School of Optometry, Health and Life Sciences, Aston University, Birmingham, United Kingdom
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Wendland RJ, Conway MT, Worthington KS. Evaluating the polymerization effectiveness and biocompatibility of bio-sourced, visible light-based photoinitiator systems. J Biomed Mater Res A 2024. [PMID: 38572856 DOI: 10.1002/jbm.a.37715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/06/2024] [Accepted: 03/23/2024] [Indexed: 04/05/2024]
Abstract
The use of photopolymerization is expanding across a multitude of biomedical applications, from drug delivery to bioprinting. Many of these current and emerging photopolymerization systems employ visible light, as motivated by safety and energy efficiency considerations. However, the "library" of visible light initiators is limited compared with the wealth of options available for UV polymerization. Furthermore, the synthesis of traditional photoinitiators relies on diminishing raw materials, and several traditional photoinitiators are considered emerging environmental contaminants. As such, there has been recent focus on identifying and characterizing biologically sourced, visible light-based photoinitiator systems that can be effectively used in photopolymerization applications. In this regard, several bio-sourced molecules have been shown to act as photoinitiators, primarily through Type II photoinitiation mechanisms. However, whether bio-sourced molecules can also act as effective synergists in these reactions remains unknown. In this study, we evaluated the effectiveness of bio-sourced synergist candidates, with a focus on amino acids, due to their amine functional groups, in combination with two bio-sourced photoinitiator molecules: riboflavin and curcumin. We tested the effectiveness of these photoinitiator systems under both violet (405 nm) and blue (460-475 nm) light using photo-rheology. We found that several synergist candidates, namely lysine, arginine, and histidine, increased the polymerization effectiveness of riboflavin when used with both violet and blue light. With curcumin, we found that almost all tested synergist candidates slightly decreased the polymerization effectiveness compared with curcumin alone under both light sources. These results show that bio-sourced molecules have the potential to be used as synergists with bio-sourced photoinitiators in visible light photopolymerization. However, more work must be done to fully characterize these reactions and to investigate more synergist candidates. Ultimately, this information is expected to expand the range of available visible light-based photoinitiator systems and increase their sustainability.
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Affiliation(s)
- Rion J Wendland
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa, USA
| | - Matthew T Conway
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa, USA
| | - Kristan S Worthington
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa, USA
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Guidi L, Cascone MG, Rosellini E. Light-responsive polymeric nanoparticles for retinal drug delivery: design cues, challenges and future perspectives. Heliyon 2024; 10:e26616. [PMID: 38434257 PMCID: PMC10906429 DOI: 10.1016/j.heliyon.2024.e26616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 03/05/2024] Open
Abstract
A multitude of sight-threatening retinal diseases, affecting hundreds of millions around the globe, lack effective pharmacological treatments due to ocular barriers and common drug delivery limitations. Polymeric nanoparticles (PNPs) are versatile drug carriers with sustained drug release profiles and tunable physicochemical properties which have been explored for ocular drug delivery to both anterior and posterior ocular tissues. PNPs can incorporate a wide range of drugs and overcome the challenges of conventional retinal drug delivery. Moreover, PNPs can be engineered to respond to specific stimuli such as ultraviolet, visible, or near-infrared light, and allow precise spatiotemporal control of the drug release, enabling tailored treatment regimens and reducing the number of required administrations. The objective of this study is to emphasize the therapeutic potential of light-triggered drug-loaded polymeric nanoparticles to treat retinal diseases through an exploration of ocular pathologies, challenges in drug delivery, current production methodologies and recent applications. Despite challenges, light-responsive PNPs hold the promise of substantially enhancing the treatment landscape for ocular diseases, aiming for an improved quality of life for patients.
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Affiliation(s)
- Lorenzo Guidi
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122, Pisa, Italy
| | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122, Pisa, Italy
| | - Elisabetta Rosellini
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122, Pisa, Italy
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Song T, Song J, Li J, Ben Hilal H, Li X, Feng P, Chen W. The candidate proteins associated with keratoconus: A meta-analysis and bioinformatic analysis. PLoS One 2024; 19:e0299739. [PMID: 38483957 PMCID: PMC10939257 DOI: 10.1371/journal.pone.0299739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/14/2024] [Indexed: 03/17/2024] Open
Abstract
PURPOSE Keratoconus (KC) is a multifactorial disorder. This study aimed to conduct a systematic meta-analysis to exclusively explore the candidate proteins associated with KC pathogenesis. METHODS Relevant literature published in the last ten years in Pubmed, Web of Science, Cochrane, and Embase databases were searched. Protein expression data were presented as the standard mean difference (SMD) and 95% confidence intervals (CI). The meta-analysis is registered on PROSPERO, registration number CRD42022332442 and was conducted in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses statement (PRISMA). GO and KEGG enrichment analysis were performed, as well as the miRNAs and chemicals targeting the candidate proteins were predicted. PPI was analyzed to screen the hub proteins, and their expression was verified by RT-qPCR. RESULTS A total of 21 studies were included in the meta-analysis, involving 346 normal eyes and 493 KC eyes. 18 deregulated proteins with significant SMD values were subjected to further analysis. In which, 7 proteins were up-regulated in KC compared with normal controls, including IL6 (SMD 1.54, 95%CI [0.85, 2.24]), IL1B (SMD 2.07, 95%CI [0.98, 3.16]), TNF (SMD 2.1, 95%CI [0.24, 3.96]), and MMP9 (SMD 1.96, 95%CI [0.68, 3.24]). While 11 proteins were down-regulated in KC including LOX (SMD 2.54, 95%CI [-4.51, -0.57]). GO and KEGG analysis showed that the deregulated proteins were involved in inflammation, extracellular matrix (ECM) remodeling, and apoptosis. MMP9, IL6, LOX, TNF, and IL1B were regarded as hub proteins according to the PPI analysis, and their transcription changes in stromal fibroblasts of KC were consistent with the results of the meta-analysis. Moreover, 10 miRNAs and two natural polyphenols interacting with hub proteins were identified. CONCLUSION This study obtained 18 candidate proteins and demonstrated altered cytokine profiles, ECM remodeling, and apoptosis in KC patients through meta-analysis and bioinformatic analysis. It will provide biomarkers for further understanding of KC pathogenesis, and potential therapeutic targets for the drug treatment of KC.
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Affiliation(s)
- Ting Song
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Jie Song
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Jingyi Li
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Halima Ben Hilal
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Xiaona Li
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Pengfei Feng
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Weiyi Chen
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
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Zhong T, Yi H, Gou J, Li J, Liu M, Gao X, Chen S, Guan H, Liang S, He Q, Lin R, Long Z, Wang Y, Shi C, Zhan Y, Zhang Y, Xing L, Zhong J, Xue X. A wireless battery-free eye modulation patch for high myopia therapy. Nat Commun 2024; 15:1766. [PMID: 38409083 PMCID: PMC10897479 DOI: 10.1038/s41467-024-46049-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 02/12/2024] [Indexed: 02/28/2024] Open
Abstract
The proper axial length of the eye is crucial for achieving emmetropia. In this study, we present a wireless battery-free eye modulation patch designed to correct high myopia and prevent relapse. The patch consists of piezoelectric transducers, an electrochemical micro-actuator, a drug microneedle array, μ-LEDs, a flexible circuit, and biocompatible encapsulation. The system can be wirelessly powered and controlled using external ultrasound. The electrochemical micro-actuator plays a key role in precisely shortening the axial length by driving the posterior sclera inward. This ensures accurate scene imaging on the retina for myopia eye. The drug microneedle array delivers riboflavin to the posterior sclera, and μ-LEDs' blue light induces collagen cross-linking, reinforcing sclera strength. In vivo experiments demonstrate that the patch successfully reduces the rabbit eye's axial length by ~1217 μm and increases sclera strength by 387%. The system operates effectively within the body without the need for batteries. Here, we show that the patch offers a promising avenue for clinically treating high myopia.
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Affiliation(s)
- Tianyan Zhong
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Hangjin Yi
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610054, China
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Jiacheng Gou
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Jie Li
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Miao Liu
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xing Gao
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Sizhu Chen
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Hongye Guan
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Shan Liang
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Qianxiong He
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Rui Lin
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Zhihe Long
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Yue Wang
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Chuang Shi
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Yang Zhan
- Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yan Zhang
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Lili Xing
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Jie Zhong
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610054, China.
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
| | - Xinyu Xue
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China.
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Cheng CF, Wang SE, Lu CW, Nguyen TKN, Shen SC, Lien CY, Chuang WC, Lee MC, Wu CH. Therapeutic Application of Dendrobium fimbriatum Hook for Retinopathy Caused by Ultraviolet Radiation and Chemotherapy Using ARPE-19 Cells and Mouse Retina. PLANTS (BASEL, SWITZERLAND) 2024; 13:617. [PMID: 38475464 DOI: 10.3390/plants13050617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/13/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024]
Abstract
Retinopathy caused by ultraviolet radiation and cancer chemotherapy has increased dramatically in humans due to rapid environmental and social changes. Therefore, it is very important to develop therapeutic strategies to effectively alleviate retinopathy. In China, people often choose dendrobium to improve their eyesight. In this study, we explored how Dendrobium fimbriatum extract (DFE) protects ARPE-19 cells and mouse retinal tissue from damage of ultraviolet (UV) radiation and chemotherapy. We evaluated the antioxidant capacity of DFE using the 1,1-diphenyl-2-trinitophenylhydrazine (DPPH) assay. The protective effects of DEF from UV- and oxaliplatin (OXA)-induced damage were examined in ARPE-19 cells using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and immunofluorescence (IF) stains, and in mouse retinal tissue using immunohistochemistry (IHC) stains. Our results show that DFE has excellent antioxidant capacity. The ARPE-19 cell viability was decreased and the F-actin cytoskeleton structure was damaged by UV radiation and OXA chemotherapy, but both were alleviated after the DFE treatment. Furthermore, DFE treatment can alleviate OXA chemotherapy-induced reduced expressions of rhodopsin and SOD2 and increased expressions of TNF-α and caspase 3 in mouse retinal tissue. Thus, we suggest that DFE can act as suitable treatment for retinopathy through reducing oxidative stress, inflammation, and apoptosis.
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Affiliation(s)
- Chi-Feng Cheng
- School of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
- Department of Oncology, Taipei City United Hospital, Renai Branch, Taipei 106, Taiwan
| | - Sheue-Er Wang
- Department of Pathological Inspection, Saint Paul's Hospital, Taoyuan 330, Taiwan
| | - Chen-Wen Lu
- School of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
| | - Thi Kim Ngan Nguyen
- School of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
| | - Szu-Chuan Shen
- School of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
| | - Chia-Ying Lien
- Master Program of Sport Facility Management and Health Promotion, National Taiwan University, Taipei 116, Taiwan
| | - Wu-Chang Chuang
- Sun Ten Pharmaceutical Co., Ltd., New Taipei City 231, Taiwan
| | - Ming-Chung Lee
- Brion Research Institute of Taiwan, New Taipei City 231, Taiwan
| | - Chung-Hsin Wu
- School of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
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Korhonen E. Inflammasome activation in response to aberrations of cellular homeostasis in epithelial cells from human cornea and retina. Acta Ophthalmol 2024; 102 Suppl 281:3-68. [PMID: 38386419 DOI: 10.1111/aos.16646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 01/16/2024] [Indexed: 02/24/2024]
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10
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Sharma Y, Patel P, Kurmi BD. A Mini-review on New Developments in Nanocarriers and Polymers for Ophthalmic Drug Delivery Strategies. Curr Drug Deliv 2024; 21:488-508. [PMID: 37143264 DOI: 10.2174/1567201820666230504115446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/20/2023] [Accepted: 03/13/2023] [Indexed: 05/06/2023]
Abstract
The eye is an important and vital organ of the human body consisting of two segments - anterior and posterior segments and these segments are associated with many diseases. This review elaborates upon the various eye-related diseases with their medications and carriers used to deliver them. Delivery strategies include drugs encapsulated into liposomes, polymeric micelles of drugs, solid lipid nanoparticles, nanostructured lipid carriers, nano emulsions, and Nanosuspension used to improve penetrating properties, bioavailability, and residence time of the drugs as examples available in the literature. With regard to this, different forms of ocular drug delivery are classified and elaborated. Additionally, the possibility of addressing the physical and chemical complexities of ocular diseases and how they could be overcome with environmentally stable nanoformulations are briefly discussed. Enhanced drug delivery efficiency with various novel pharmaceuticals along with enhanced uptake by different routes/modes of drug administration. Current advancements in drug carrier systems, i.e., nanocarriers, have shown promise for improving the retention time, drug permeation and prolonging the duration of release of the drug in the ocular site. Bio-degradable polymers investigated for the preparation of nanocarriers for the entrapment of drugs and to enhance the efficacy through improved adherence of tissue in the eye, sustained release measures, enhanced bioavailability, lower toxicity, and targeted delivery is applicable. This review covers the introduction of various nanocarriers and polymers for ocular drug delivery with the purpose of enhancing the absorption, retention and bioavailability of medications in the eye.
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Affiliation(s)
- Yash Sharma
- Department of Pharmaceutical Quality Assurance, ISF College Pharmacy, GT Road, Moga-142001, Punjab, India
| | - Preeti Patel
- Department of Pharmaceutical Chemistry, ISF College Pharmacy, GT Road, Moga-142001, Punjab, India
| | - Balak Das Kurmi
- Department of Pharmaceutics, ISF College Pharmacy, GT Road, Moga-142001, Punjab, India
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Shree D, Patra CN, Sahoo BM. Applications of Nanotechnology-mediated Herbal Nanosystems for Ophthalmic Drug. Pharm Nanotechnol 2024; 12:229-250. [PMID: 37587812 DOI: 10.2174/2211738511666230816090046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/05/2023] [Accepted: 07/13/2023] [Indexed: 08/18/2023]
Abstract
In recent years, herbal nanomedicines have gained tremendous popularity for novel drug discovery. Nanotechnology has provided several advances in the healthcare sector, emerging several novel nanocarriers that potentiate the bioavailability and therapeutic efficacy of the herbal drug. The recent advances in nanotechnology with accelerated strategies of ophthalmic nanosystems have paved a new path for overcoming the limitations associated with ocular drug delivery systems, such as low bioavailability, poor absorption, stability, and precorneal drug loss. Ophthalmic drug delivery is challenging due to anatomical and physiological barriers. Due to the presence of these barriers, the herbal drug entry into the eyes can be affected when administered by following multiple routes, i.e., topical, injectables, or systemic. However, the advancement of nanotechnology with intelligent systems enables the herbal active constituent to successfully entrap within the system, which is usually difficult to reach employing conventional herbal formulations. Herbal-loaded nanocarrier drug delivery systems demonstrated enhanced herbal drug permeation and prolonged herbal drug delivery. In this current manuscript, an extensive search is conducted for original research papers using databases Viz., PubMed, Google Scholar, Science Direct, Web of Science, etc. Further painstaking efforts are made to compile and update the novel herbal nanocarriers such as liposomes, polymeric nanoparticles, solid lipid nanoparticles, nanostructure lipid carriers, micelles, niosomes, nanoemulsions, dendrimers, etc., which are mostly used for ophthalmic drug delivery system. This article presents a comprehensive survey of diverse applications used for the preventative measures and treatment therapy of varied eye disorders. Further, this article highlights the recent findings that the innovators are exclusively working on ophthalmic nanosystems for herbal drug delivery systems. The nanocarriers are promising drug delivery systems that enable an effective and supreme therapeutic potential circumventing the limitations associated with conventional ocular drug delivery systems. The nanotechnology-based approach is useful to encapsulate the herbal bioactive and prevent them from degradation and therefore providing them for controlled and sustained release with enhanced herbal drug permeation. Extensive research is still being carried out in the field of herbal nanotechnology to design an ophthalmic nanosystem with improved biopharmaceutical properties.
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Affiliation(s)
- Dipthi Shree
- Department of Pharmaceutics, Roland Institute of Pharmaceutical Sciences, Berhampur, 760010, Odisha, India
| | - Chinam Niranjan Patra
- Department of Pharmaceutics, Roland Institute of Pharmaceutical Sciences, Berhampur, 760010, Odisha, India
| | - Biswa Mohan Sahoo
- Department of Pharmaceutical Chemistry, Roland Institute of Pharmaceutical Sciences, Berhampur, 760010, Odisha, India
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12
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Chu PY, Wang H, Ross E, Stephens N, Zhang HM, Andersen N, Chan W, Shivva V, Crowell SR, Spiess C, Holder PG, Agard NJ, Ji C, Chen J, Sreedhara A, Wang J, Wu C, Liu Y, Tran JC. Translatability of In Vitro Stress for Predicting Deamidation and Oxidation Biotransformation on Biotherapeutics. Anal Chem 2023; 95:17957-17961. [PMID: 38084380 DOI: 10.1021/acs.analchem.3c02133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Biotransformation leading to single residue modifications (e.g., deamidation, oxidation) can contribute to decreased efficacy/potency, poor pharmacokinetics, and/or toxicity/immunogenicity for protein therapeutics. Identifying and characterizing such liabilities in vivo are emerging needs for biologics drug discovery. In vitro stress assays involving PBS for deamidation or AAPH for oxidation are commonly used for predicting liabilities in manufacturing and storage and are sometimes considered a predictive tool for in vivo liabilities. However, reports discussing their in vivo translatability are limited. Herein, we introduce a mass spectrometry workflow that characterizes in vivo oxidation and deamidation in pharmacokinetically relevant compartments for diverse protein therapeutic modalities. The workflow has low bias of <10% in quantitating degradation in the relevant pharmacokinetic concentration range for monkey and rabbit serum/plasma (1-100 μg/mL) and allows for high sequence coverage (∼85%) for discovery/monitoring of amino acid modifications. For oxidation and deamidation, the assay was precise, with percent coefficient of variation of <8% at 1-100 μg/mL and ≤6% method-induced artifacts. A high degree of in vitro and in vivo correlation was observed for deamidation on the six diverse protein therapeutics (seven liability sites) tested. In vivo translatability for oxidation liabilities were not observed for the 11 molecules tested using in vitro AAPH stress. One of the molecules dosed in eyes resulted in a false positive and a false negative prediction for in vivo oxidation following AAPH stress. Finally, peroxide stress was also tested but resulted in limited success (1 out of 4 molecules) in predicting oxidation liabilities.
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Affiliation(s)
- Phillip Y Chu
- Genentech, South San Francisco, California 94080-4990, United States
| | - Hui Wang
- NovaBioAssays, Woburn, Massachusetts, 01801, United States
| | - Emily Ross
- Genentech, South San Francisco, California 94080-4990, United States
| | - Nicole Stephens
- Genentech, South San Francisco, California 94080-4990, United States
| | - Hui-Min Zhang
- Genentech, South San Francisco, California 94080-4990, United States
| | - Nisana Andersen
- Genentech, South San Francisco, California 94080-4990, United States
| | - Wayman Chan
- Genentech, South San Francisco, California 94080-4990, United States
| | - Vittal Shivva
- Genentech, South San Francisco, California 94080-4990, United States
| | - Susan R Crowell
- Genentech, South San Francisco, California 94080-4990, United States
| | - Christoph Spiess
- Genentech, South San Francisco, California 94080-4990, United States
| | - Patrick G Holder
- Genentech, South San Francisco, California 94080-4990, United States
| | - Nicholas J Agard
- Genentech, South San Francisco, California 94080-4990, United States
| | - Chengjie Ji
- NovaBioAssays, Woburn, Massachusetts, 01801, United States
| | - John Chen
- NovaBioAssays, Woburn, Massachusetts, 01801, United States
| | | | - Jianyong Wang
- Genentech, South San Francisco, California 94080-4990, United States
| | - Cong Wu
- Genentech, South San Francisco, California 94080-4990, United States
| | - Yichin Liu
- Genentech, South San Francisco, California 94080-4990, United States
| | - John C Tran
- Genentech, South San Francisco, California 94080-4990, United States
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13
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Jiang B, Wu T, Liu W, Liu G, Lu P. Changing Trends in the Global Burden of Cataract Over the Past 30 Years: Retrospective Data Analysis of the Global Burden of Disease Study 2019. JMIR Public Health Surveill 2023; 9:e47349. [PMID: 38051579 PMCID: PMC10731550 DOI: 10.2196/47349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 08/21/2023] [Accepted: 10/24/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND Cataracts now account for the largest proportion of the global burden of blindness and vision loss. Understanding the changing trends in the global burden of cataracts over the past 30 years and the next 15 years is of clear significance for the prevention and control of cataracts in key populations. As far as we know, research on the future burden of cataracts is lacking. OBJECTIVE This study aims to assess the global burden of cataracts over the past 30 years by using age-period-cohort modeling and to estimate trends in the next 15 years. METHODS Data were obtained from the Global Burden of Disease Study 2019, the United Nations Development Programme, and the WHO (World Health Organization) Global Health Observatory data repository. The assessment of trends and disparities in the number and rate of disability-adjusted life years (DALYs) for cataracts from 1990 to 2019 was conducted. The association between the age-standardized DALY rate (ASDR) and the socio-demographic index (SDI), human development index (HDI), national levels of particulate matter <2.5 μm in diameter (PM2.5), and ambient ultraviolet radiation (UVR) was determined using linear regression analysis. Additionally, we used the Nordpred (Harald Fekjær and Bjørn Møller) age-period-cohort model to predict the cataract burden from 2020 to 2034. RESULTS Globally, the number of DALYs due to cataract increased from 3,492,604 (95% uncertainty interval [UI] 2,481,846-4,719,629) in 1990 to 6,676,281 (95% UI 4,761,210-9,006,193) in 2019. The ASDRs due to cataract decreased from 93.17 (95% UI 66.14-125.32) in 1990 to 82.94 (95% UI 59.06-111.75) in 2019, with an average annual percentage change of -0.37 (95% CI -0.44 to -0.3; P<.001). Age, female sex, air pollution, smoking, high fasting plasma glucose levels, and a high body mass index were risk factors for the burden of cataracts. SDI and HDI were negatively correlated with ASDRs of cataracts, while PM2.5 and UVR were positively associated with them. Higher DALY rates were also associated with lower SDI (R2=0.1939; P<.001), lower HDI (R2=0.2828; P<.001), national PM2.5 concentration (R2=0.1874; P<.001), and ambient UVR levels (R2=0.2354; P<.001). The prediction model suggested that the number of DALYs due to cataract will continue to rise globally, while the cataract DALY rate will continue to decrease. CONCLUSIONS While the ASDR of cataracts has decreased, there has been a notable increase in the number of DALYs over the past 30 years. Projections suggest that the global burden of cataracts will continue to rise over the next 15 years. To address this challenge, appropriate prevention and treatment policies must be implemented.
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Affiliation(s)
- Bo Jiang
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Tianhong Wu
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Weiming Liu
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Gaoqin Liu
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Peirong Lu
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, China
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14
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Peng J, Han C, Zhang X, Jia J, Bai J, Zhang Q, Wang Y, Xue P. Mechanical Effects of Elastic Crystals Driven by Natural Sunlight and Force. Angew Chem Int Ed Engl 2023; 62:e202311348. [PMID: 37828622 DOI: 10.1002/anie.202311348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 10/14/2023]
Abstract
Flexible crystals that can capture solar energy and convert it into mechanical energy are promising for a wide range of applications such as information storage and actuators, but obtaining them remains a challenge. Herein, an elastic crystal of a barbiturate derivative was found to be an excellent candidate, demonstrating plastic bending behavior under natural sunlight irradiation. 1 H NMR and high-resolution mass spectrum data of microcrystals before and after light irradiation demonstrated that light-induced [2+2] cycloaddition was the driving force for the photomechanical effects. Interestingly, the crystals retained elastic bending even after light irradiation. This is the first report of flexible crystals that can be driven by natural sunlight and that have both photomechanical properties and elasticity. Furthermore, regulation of the passive light output direction of the crystals and transport of objects by applying mechanical forces and light was demonstrated.
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Affiliation(s)
- Jiang Peng
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of, Ministry of Education & School of Chemistry and Materials Science of, Shanxi Normal University, 030032, Taiyuan, China
| | - Chuchu Han
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of, Ministry of Education & School of Chemistry and Materials Science of, Shanxi Normal University, 030032, Taiyuan, China
| | - Xin Zhang
- Aerospace science & industry defense technology research and test center, 100039, Beijing, China
| | - Junhui Jia
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of, Ministry of Education & School of Chemistry and Materials Science of, Shanxi Normal University, 030032, Taiyuan, China
| | - Jiakun Bai
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of, Ministry of Education & School of Chemistry and Materials Science of, Shanxi Normal University, 030032, Taiyuan, China
| | - Qi Zhang
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of, Ministry of Education & School of Chemistry and Materials Science of, Shanxi Normal University, 030032, Taiyuan, China
| | - Yan Wang
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of, Ministry of Education & School of Chemistry and Materials Science of, Shanxi Normal University, 030032, Taiyuan, China
| | - Pengchong Xue
- Tianjin key laboratory of structure and performance for functional molecules, College of Chemistry, Tianjin Normal University, 300387, Tianjin, China
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15
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Soleimani M, Cheraqpour K, Koganti R, Djalilian AR. Cellular senescence and ophthalmic diseases: narrative review. Graefes Arch Clin Exp Ophthalmol 2023; 261:3067-3082. [PMID: 37079093 DOI: 10.1007/s00417-023-06070-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/21/2023] [Accepted: 04/11/2023] [Indexed: 04/21/2023] Open
Abstract
PURPOSE Cellular senescence is a state of permanent growth arrest whereby a cell reaches its replicative limit. However, senescence can also be triggered prematurely in certain stressors including radiation, oxidative stress, and chemotherapy. This stress-induced senescence has been studied in the context of promoting inflammation, tumor development, and several chronic degenerative diseases of aging. Emerging research has elucidated the role of senescence in various ocular diseases. METHODS The literature search was performed using PubMed with using the query (senescence OR aging) AND (eye disease OR ocular disease OR ophthalmic disease OR cornea OR glaucoma OR cataract OR retina) on October 20th, 2022. No time restriction was proposed. Articles were excluded if they were not referenced in English. RESULTS Overall, 51 articles regarding senescence and ocular diseases were found and summarized in this study. Several signaling pathways have been implicated in the development of senescence. Currently, senescence has been linked to various corneal and retinal pathologies, as well as cataract and glaucoma. Given the number of pathologies, senolytics, which are small molecules with the ability to selective targeting of senescent cells, can be used as therapeutic or prophylactic agents. CONCLUSIONS Senescence has been shown to underlie the pathogenesis of numerous ocular diseases. The overall literature on senescence and ocular disease is growing rapidly. There is an ongoing debate whether or not cellular senescence detected in experiments contributes in a significant way to diseases. Research on understanding the mechanism of senescence from ocular cells and tissues is just beginning. Multiple animal models are required to test potential senolytics. Currently, no studies exist to date which have demonstrated the benefits of senolytic therapies in human studies.
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Affiliation(s)
- Mohammad Soleimani
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA
- Cornea Service, Stem Cell Therapy and Corneal Tissue Engineering Laboratory, Illinois Eye and Ear Infirmary, 1855 W. Taylor Street, M/C 648, Chicago, IL, 60612, USA
| | - Kasra Cheraqpour
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Raghuram Koganti
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Ali R Djalilian
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
- Cornea Service, Stem Cell Therapy and Corneal Tissue Engineering Laboratory, Illinois Eye and Ear Infirmary, 1855 W. Taylor Street, M/C 648, Chicago, IL, 60612, USA.
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16
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Ajgaonkar BS, Kumaran A, Kumar S, Jain RD, Dandekar PP. Cell-based Therapies for Corneal and Retinal Disorders. Stem Cell Rev Rep 2023; 19:2650-2682. [PMID: 37704835 DOI: 10.1007/s12015-023-10623-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2023] [Indexed: 09/15/2023]
Abstract
Maintenance of the visual function is the desired outcome of ophthalmologic therapies. The shortcomings of the current treatment options, like partial recovery, post-operation failure, rigorous post-operative care, complications, etc., which are usually encountered with the conventional treatment options has warranted newer treatment options that may eliminate the root cause of diseases and minimize the side effects. Cell therapies, a class of regenerative medicines, have emerged as cutting-edge treatment option. The corneal and retinal dystrophies during the ocular disorders are the major cause of blindness, worldwide. Corneal disorders are mainly categorized mainly into corneal epithelial, stromal, and endothelial disorders. On the other hand, glaucoma, retinitis pigmentosa, age-related macular degeneration, diabetic retinopathy, Stargardt Disease, choroideremia, Leber congenital amaurosis are then major retinal degenerative disorders. In this manuscript, we have presented a detailed overview of the development of cell-based therapies, using embryonic stem cells, bone marrow stem cells, mesenchymal stem cells, dental pulp stem cells, induced pluripotent stem cells, limbal stem cells, corneal epithelial, stromal and endothelial, embryonic stem cell-derived differentiated cells (like retinal pigment epithelium or RPE), neural progenitor cells, photoreceptor precursors, and bone marrow-derived hematopoietic stem/progenitor cells etc. The manuscript highlights their efficiency, drawbacks and the strategies that have been explored to regain visual function in the preclinical and clinical state associated with them which can be considered for their potential application in the development of treatment.
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Affiliation(s)
- Bhargavi Suryakant Ajgaonkar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Akash Kumaran
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Salil Kumar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Ratnesh D Jain
- Department of Biological Science and Biotechnology, Institute of Chemical Technology, Mumbai, Maharashtra, India
| | - Prajakta P Dandekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India.
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17
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Shi Y, Wang Y, Zou H, Zhao B, Zhu T, Nakamura Y, Qi H. Detection of Simulated In Vitro Digestion Products of Fucoxanthin and Their Photodamage Alleviation Effect in Retinal Müller Cells Induced by Ultraviolet B Irradiation: A Proteomics Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14626-14637. [PMID: 37753556 DOI: 10.1021/acs.jafc.3c03853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Our previous study reported that the marine dietary bioactive compound fucoxanthin (FX) has the potential to reduce the level of oxidation in retinal Müller cells (RMCs) induced by ultraviolet B (UVB) irradiation. However, the gastrointestinal environment can inhibit the bioavailability and absorption of FX in the cell systems. In the current study, FX was initially digested in a simulated in vitro gastrointestinal fluid. Nine main digestive products were identified, and the photoprotective activities of FX simulated in vitro gastrointestinal digestion products (FX-ID) were assessed in the same RMC model. FX-ID significantly reduced intracellular ROS and alleviated apoptosis. Western blot assays showed that FX-ID inhibited phosphorylated proteins in the MAPK and NF-κB signaling pathways. Our proteomics analysis revealed that the differentially expressed proteins were linked to biological networks associated with antioxidation and metabolic processes. The data may provide insight into the photoprotective mechanisms of FX-ID and promote the development of various functional foods to prevent retinal disorders.
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Affiliation(s)
- Yixin Shi
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian 116034, P. R. China
| | - Yingzhen Wang
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian 116034, P. R. China
| | - Haotian Zou
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian 116034, P. R. China
| | - Baomin Zhao
- Jiangsu Palarich Food Co., Ltd., Xuzhou 221116, P. R. China
| | - Taihai Zhu
- Jiangsu Palarich Food Co., Ltd., Xuzhou 221116, P. R. China
| | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Hang Qi
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian 116034, P. R. China
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18
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Sureshkumar I, Gunalan V, Nareshkumar RN, Sripriya K, Ronnie G, Sharada R, Asokan R. Evaluating the impact of ocular UV exposure for the development for pseudoexfoliation syndrome in a South Indian population. Clin Exp Optom 2023; 106:734-740. [PMID: 36375140 DOI: 10.1080/08164622.2022.2134762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/16/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
CLINICAL RELEVANCE Pathophysiology of pseudoexfoliation syndrome (XFS) can be influenced by environmental factors such as solar exposure/occupational factors and genetic factors. BACKGROUND The study aims to assess the association of lifetime ocular UV exposure and its impact on the risk of development of XFS. METHODS All eligible subjects underwent a comprehensive ocular examination. XFS was defined as precipitates on the pupillary border, cornea, and angle of anterior chamber or lens in at least one eye without any clinical signs of glaucoma. A standardised questionnaire was administered to assess the lifetime UV exposure. Conjunctival ultraviolet autofluorescence (CUVAF) photography was taken to detect the conjunctival changes with exposure to UV radiation. Ascorbic acid concentration in the aqueous humour was measured. RESULTS A total of 404 subjects of which 274 (controls) and 130 (XFS cases) were studied. There were 204 males (50.5%) and 200 females (49.5%).Lifetime UV exposure (OR: 1.14, 95% CI: 1.02-1.30, p: 0.032), CUVAF damage (OR: 1.03, 95% CI: 1.01-1.06, p: 0.008) and outdoor worker (OR: 1.87, 95% CI: 1.18-3.00, p: 0.008) were positively associated with XFS. Usage of spectacles (OR: 0.63, 95% CI: 0.39-0.95, p: 0.030) and ascorbic acid concentration in aqueous (OR: 0.47, 95% CI: 0.23-0.99, p: 0.038) were found to be protective against XFS. CONCLUSION Besides genetic factors, environmental factors such as lifetime ocular UV exposure and outdoor work are significantly associated with the risk of XFS. CUVAF can be used as a non-invasive tool to detect preclinical sun damage in outdoor workers.
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Affiliation(s)
- Ishwarya Sureshkumar
- Research Fellow, Vision Research Foundation, Glaucoma services Sankara Nethralaya, Chennai, India
| | - Vaishaali Gunalan
- Research Fellow, Vision Research Foundation, Glaucoma services Sankara Nethralaya, Chennai, India
| | - R N Nareshkumar
- RS Mehta Jain Department of Biochemistry and Cell Biology, Vision Research Foundation Sankara Nethralaya, Chennai, Tamil Nadu, India
| | - Krishnamoorthy Sripriya
- Glaucoma Services, Medical Research Foundation Sankara Nethralaya, Chennai, Tamil Nadu, India
| | - George Ronnie
- Research Fellow, Vision Research Foundation, Glaucoma services Sankara Nethralaya, Chennai, India
- Glaucoma Services, Medical Research Foundation Sankara Nethralaya, Chennai, Tamil Nadu, India
| | - Ramasubramanyan Sharada
- RS Mehta Jain Department of Biochemistry and Cell Biology, Vision Research Foundation Sankara Nethralaya, Chennai, Tamil Nadu, India
| | - Rashima Asokan
- Research Fellow, Vision Research Foundation, Glaucoma services Sankara Nethralaya, Chennai, India
- Glaucoma Services, Medical Research Foundation Sankara Nethralaya, Chennai, Tamil Nadu, India
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19
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Abstract
Endogenous photosensitizers play a critical role in both beneficial and harmful light-induced transformations in biological systems. Understanding their mode of action is essential for advancing fields such as photomedicine, photoredox catalysis, environmental science, and the development of sun care products. This review offers a comprehensive analysis of endogenous photosensitizers in human skin, investigating the connections between their electronic excitation and the subsequent activation or damage of organic biomolecules. We gather the physicochemical and photochemical properties of key endogenous photosensitizers and examine the relationships between their chemical reactivity, location within the skin, and the primary biochemical events following solar radiation exposure, along with their influence on skin physiology and pathology. An important take-home message of this review is that photosensitization allows visible light and UV-A radiation to have large effects on skin. The analysis presented here unveils potential causes for the continuous increase in global skin cancer cases and emphasizes the limitations of current sun protection approaches.
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Affiliation(s)
- Erick L Bastos
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Frank H Quina
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
- Department of Chemical Engineering, Polytechnic School, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Maurício S Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
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20
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Blasiak J, Chojnacki J, Szczepanska J, Fila M, Chojnacki C, Kaarniranta K, Pawlowska E. Epigallocatechin-3-Gallate, an Active Green Tea Component to Support Anti-VEGFA Therapy in Wet Age-Related Macular Degeneration. Nutrients 2023; 15:3358. [PMID: 37571296 PMCID: PMC10421466 DOI: 10.3390/nu15153358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/19/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Age-related macular degeneration (AMD) is a largely incurable disease and an emerging problem in aging societies. It occurs in two forms, dry and wet (exudative, neovascular), which may cause legal blindness and sight loss. Currently, there is not any effective treatment for dry AMD. Meanwhile, repeated intravitreal injections with antibodies effective against vascular endothelial growth factor A (VEGFA) slow down wet AMD progression but are not free from complications. (-)-Epigallocatechin-3-gallate (EGCG) is an active compound of green tea, which exerts many beneficial effects in the retinal pigment epithelium and the neural retina. It has been reported to downregulate the VEGFA gene by suppressing its activators. The inhibition of mitogen-activated protein kinases 1 and 3 (MAPK1 and MAPK3) may lie behind the antiangiogenic action of EGCG mediated by VEGFA. EGCG exerts protective effects against UV-induced damage to retinal cells and improves dysfunctional autophagy. EGCG may also interact with the mechanistic target rapamycin (MTOR) and unc-51-like autophagy activating kinase (ULK1) to modulate the interplay between autophagy and apoptosis. Several other studies report beneficial effects of EGCG on the retina that may be related to wet AMD. Therefore, controlled clinical trials are needed to verify whether diet supplementation with EGCG or green tea consumption may improve the results of anti-VEGFA therapy in wet AMD.
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Affiliation(s)
- Janusz Blasiak
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland
| | - Jan Chojnacki
- Department of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland; (J.C.); (C.C.)
| | - Joanna Szczepanska
- Department of Pediatric Dentistry, Medical University of Lodz, 92-217 Lodz, Poland; (J.S.); (E.P.)
| | - Michal Fila
- Department of Developmental Neurology and Epileptology, Polish Mother’s Memorial Hospital Research Institute, 93-338 Lodz, Poland;
| | - Cezary Chojnacki
- Department of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland; (J.C.); (C.C.)
| | - Kai Kaarniranta
- Department of Ophthalmology, University of Eastern Finland, 70210 Kuopio, Finland;
- Department of Ophthalmology, Kuopio University Hospital, 70210 Kuopio, Finland
| | - Elzbieta Pawlowska
- Department of Pediatric Dentistry, Medical University of Lodz, 92-217 Lodz, Poland; (J.S.); (E.P.)
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21
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Thoonen K, Woodhouse S, Minto C, Blane S, Talati Z. Patterns of Sun Protection Behaviours among Australian Adolescents and Adults over a Six-Year Period. Curr Oncol 2023; 30:7178-7188. [PMID: 37623001 PMCID: PMC10453427 DOI: 10.3390/curroncol30080520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023] Open
Abstract
The major cause for skin cancer is the excessive and unprotected exposure to ultraviolet radiation (UVR), which can be prevented by engaging in sun protection behaviours. As longitudinal studies on both adolescents' and adults' performances of sun protection behaviours are limited, the current study aimed to investigate changes in sun protection in these population segments in Western Australia, a region with high annual UVR. During six summer seasons (2015/16 to 2020/21), cross-sectional surveys were conducted among 1806 adolescents (14 to 17 years old) and 1808 adults (18-45 years old), investigating the frequency of five sun protection behaviours (wearing clothing, applying sunscreen, wearing a hat, wearing sunglasses, and seeking shade) and sun avoidance (staying indoors). Over the six-year period, staying indoors increased in both groups. Among adolescents, a decrease in wearing clothing and sunglasses and an increase in seeking shade was demonstrated, and hat and sunscreen use remained relatively stable. Among adults, an increase in sunscreen use was shown, whereas all other sun-related behaviours remained consistent over the six-year period. The results from this study can provide directions for health communications focusing on improving sun protection behaviours among both adolescent and adult populations.
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Affiliation(s)
- Karlijn Thoonen
- Melbourne Centre for Behaviour Change, Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne 3010, Australia
| | - Sade Woodhouse
- School of Population Health, Curtin University, Perth 6845, Australia (Z.T.)
| | - Carolyn Minto
- Cancer Council Western Australia, Perth 6008, Australia;
| | - Sally Blane
- Cancer Council Western Australia, Perth 6008, Australia;
| | - Zenobia Talati
- School of Population Health, Curtin University, Perth 6845, Australia (Z.T.)
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22
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Lu TH, Chang JW, Jhou BY, Hsu JH, Li TJ, Lee LY, Chen YL, Chang HH, Chen CC, Wu PS, Lin DPC. Preventative Effects of Cordyceps cicadae Mycelial Extracts on the Early-Stage Development of Cataracts in UVB-Induced Mice Cataract Model. Nutrients 2023; 15:3103. [PMID: 37513520 PMCID: PMC10386163 DOI: 10.3390/nu15143103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Cataracts, a prevalent age-related eye condition, pose a significant global health concern, with rising rates due to an aging population and increased digital device usage. In Taiwan, cataract prevalence is particularly high, reaching up to 90% among individuals aged 70 and above. The lens of the eye absorbs short-wave light, which can lead to oxidative stress in lens epithelial cells and contribute to cataract formation. Exposure to ultraviolet (UV) light further exacerbates the risk of cataracts by generating reactive oxygen species. Heat-shock proteins (HSPs), involved in protein maintenance and repair, have been linked to cataract development. Cordyceps cicadae (C. cicadae), a traditional Chinese medicine, has a long history of use and is known for its pharmacological effects. N6-(2-hydroxyethyl) adenosine (HEA), a bioactive compound found in C. cicadae, exhibits anti-inflammatory, immunomodulatory, and neuroprotective properties. Previous studies have shown that C. cicadae mycelial extracts improve dry eye disease and reduce intraocular pressure in animal models. Additionally, C. cicadae possesses antioxidant properties, which are beneficial for combating cataract formation. In this study, we aim to evaluate the preventive efficacy of C. cicadae mycelial extracts in UV-induced cataract development. By investigating the ameliorative effects of C. cicadae on eye diseases and its potential role in ocular health improvement, we hope to uncover new options for cataract prevention and provide insights into the mechanisms of action. The findings of this research could provide a novel approach for nutritional supplements targeting cataract prevention, offering potential benefits in the field of ocular health.
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Affiliation(s)
- Tsung-Han Lu
- Department of Medical Laboratory and Biotechnology, Chug Shan Medical University, Taichung City 402, Taiwan
| | - Jun-Way Chang
- The Ph.D. Program of Biotechnology and Biomedical Industry, China Medical University, Taichung City 404, Taiwan
| | - Bo-Yi Jhou
- Grape King Bio Ltd., Taoyuan City 320, Taiwan
| | | | - Tsung-Ju Li
- Grape King Bio Ltd., Taoyuan City 320, Taiwan
| | - Li-Ya Lee
- Grape King Bio Ltd., Taoyuan City 320, Taiwan
| | | | - Han-Hsin Chang
- Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung City 402, Taiwan
- Department of Nutrition, Chung Shan Medical University, Taichung City 402, Taiwan
| | - Chin-Chu Chen
- Grape King Bio Ltd., Taoyuan City 320, Taiwan
- Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei City 104, Taiwan
- Institute of Food Science and Technology, National Taiwan University, Taipei City 106, Taiwan
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City 320, Taiwan
| | - Pey-Shiuan Wu
- Department of Cosmetic Science, Providence University, Taichung City 433, Taiwan
| | - David Pei-Cheng Lin
- Department of Medical Laboratory and Biotechnology, Chug Shan Medical University, Taichung City 402, Taiwan
- Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung City 402, Taiwan
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23
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Dobreva A, Camacho ET, Miranda M. Mathematical model for glutathione dynamics in the retina. Sci Rep 2023; 13:10996. [PMID: 37419948 PMCID: PMC10328985 DOI: 10.1038/s41598-023-37938-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 06/29/2023] [Indexed: 07/09/2023] Open
Abstract
The retina is highly susceptible to the generation of toxic reactive oxygen species (ROS) that disrupt the normal operations of retinal cells. The glutathione (GSH) antioxidant system plays an important role in mitigating ROS. To perform its protective functions, GSH depends on nicotinamide adenine dinucleotide phosphate (NADPH) produced through the pentose phosphate pathway. This work develops the first mathematical model for the GSH antioxidant system in the outer retina, capturing the most essential components for formation of ROS, GSH production, its oxidation in detoxifying ROS, and subsequent reduction by NADPH. We calibrate and validate the model using experimental measurements, at different postnatal days up to PN28, from control mice and from the rd1 mouse model for the disease retinitis pigmentosa (RP). Global sensitivity analysis is then applied to examine the model behavior and identify the pathways with the greatest impact in control compared to RP conditions. The findings underscore the importance of GSH and NADPH production in dealing with oxidative stress during retinal development, especially after peak rod degeneration occurs in RP, leading to increased oxygen tension. This suggests that stimulation of GSH and NADPH synthesis could be a potential intervention strategy in degenerative mouse retinas with RP.
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Affiliation(s)
- Atanaska Dobreva
- Department of Mathematics, Augusta University, Augusta, GA, 30912, USA.
| | - Erika Tatiana Camacho
- University of Texas at San Antonio, San Antonio, TX, 78249, USA
- School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ, 85281, USA
| | - María Miranda
- Department of Biomedical Sciences, Faculty of Health Sciences, Institute of Biomedical Sciences, Cardenal Herrera-CEU University, CEU Universities, 46115, Valencia, Spain
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24
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Xie Y, Ye J, Ouyang Y, Gong J, Li C, Deng Y, Mai Y, Liu Y, Deng W. Microneedle-Assisted Topical Delivery of Idebenone-Loaded Bioadhesive Nanoparticles Protect against UV-Induced Skin Damage. Biomedicines 2023; 11:1649. [PMID: 37371744 DOI: 10.3390/biomedicines11061649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/27/2023] [Accepted: 06/04/2023] [Indexed: 06/29/2023] Open
Abstract
Ultraviolet (UV) radiation can penetrate the basal layer of the skin and induce profound alterations in the underlying dermal tissues, including skin pigmentation, oxidative stress, photoaging, glycation, and skin cancer. Idebenone (IDB), an effective antioxidant that suppresses melanin biosynthesis and glycation, can protect the skin from UV-induced damage, accounting for its use in commercial anti-aging formulations. Ideally, IDB formulations should retain IDB inside the skin for a sufficient period, despite disturbances such as sweating or swimming. Herein, we present an IDB topical formulation based on Tris (tris(hydroxymethyl)-aminomethane)-modified bioadhesive nanoparticles (Tris-BNPs) and microneedle-assisted delivery. We found that Tris-BNPs loaded with IDB (IDB/Tris-BNPs) effectively reached the basal layer of the skin and were retained for at least 4 days with a slow and continuous drug release profile, unlike non-bioadhesive nanoparticles (NNPs) and bioadhesive nanoparticles (BNPs) of similar sizes (ranging from 120-142 nm) and zeta-potentials (above -20 mV), which experienced a significant reduction in concentration within 24 h. Notably, IDB/Tris-BNPs showed superior performance against UV-induced damage relative to IDB/NNPs and IDB/BNPs. This effect was demonstrated by lower levels of reactive oxygen species and advanced glycation end-products in skin tissues, as well as suppressed melanogenesis. Therefore, the proposed IDB delivery strategy provided long-term protective effects against UV-induced skin damage.
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Affiliation(s)
- Yuan Xie
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Jingping Ye
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Yaqi Ouyang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Jianing Gong
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Chujie Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Yang Deng
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Yang Mai
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Yang Liu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Wenbin Deng
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
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25
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Mayorga-Martinez CC, Zelenka J, Klima K, Kubanova M, Ruml T, Pumera M. Multimodal-Driven Magnetic Microrobots with Enhanced Bactericidal Activity for Biofilm Eradication and Removal from Titanium Mesh. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300191. [PMID: 36995927 DOI: 10.1002/adma.202300191] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/12/2023] [Indexed: 06/09/2023]
Abstract
Modern micro/nanorobots can perform multiple tasks for biomedical and environmental applications. Particularly, magnetic microrobots can be completely controlled by a rotating magnetic field and their motion powered and controlled without the use of toxic fuels, which makes them most promising for biomedical application. Moreover, they are able to form swarms, allowing them to perform specific tasks at a larger scale than a single microrobot. In this work, they developed magnetic microrobots composed of halloysite nanotubes as backbone and iron oxide (Fe3 O4 ) nanoparticles as magnetic material allowing magnetic propulsion and covered these with polyethylenimine to load ampicillin and prevent the microrobots from disassembling. These microrobots exhibit multimodal motion as single robots as well as in swarms. In addition, they can transform from tumbling to spinning motion and vice-versa, and when in swarm mode they can change their motion from vortex to ribbon and back again. Finally, the vortex motion mode is used to penetrate and disrupt the extracellular matrix of Staphylococcus aureus biofilm colonized on titanium mesh used for bone restoration, which improves the effect of the antibiotic's activity. Such magnetic microrobots for biofilm removal from medical implants could reduce implant rejection and improve patients' well-being.
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Affiliation(s)
- Carmen C Mayorga-Martinez
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, Prague, 166 28, Czech Republic
| | - Jaroslav Zelenka
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technicka 5, Prague, 166 28, Czech Republic
| | - Karel Klima
- Department of Stomatology - Maxillofacial Surgery, General Teaching Hospital and First Faculty of Medicine, Charles University, Prague, 12808, Czech Republic
| | - Michaela Kubanova
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technicka 5, Prague, 166 28, Czech Republic
| | - Tomas Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technicka 5, Prague, 166 28, Czech Republic
| | - Martin Pumera
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, Prague, 166 28, Czech Republic
- Faculty of Electrical Engineering and, Computer Science, VSB - Technical University of Ostrava, 17. listopadu 2172/15, Ostrava, 70800, Czech Republic
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Department of Medical Research, China Medical University Hospital, China Medical University, No. 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
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26
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Guo C, Ning X, Zhang J, Zhang C, Wang J, Su L, Han J, Ma N. Ultraviolet B radiation induces oxidative stress and apoptosis in human lens epithelium cells by activating NF-κB signaling to down-regulate sodium vitamin C transporter 2 (SVCT2) expression. Cell Cycle 2023; 22:1450-1462. [PMID: 37246402 PMCID: PMC10281468 DOI: 10.1080/15384101.2023.2215084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/07/2023] [Accepted: 05/05/2023] [Indexed: 05/30/2023] Open
Abstract
Ultraviolet B (UVB) exposure is reported to cause cataract formation by inducing excessive reactive oxygen species (ROS) and apoptosis in human lens epithelial cells (HLECs). Sodium-dependent Vitamin C transports-2 (SVCT2) is a ascorbic acid (AsA) transporter for that can protect cells and tissues from oxidative stress. Here, we focus on the functional characterization and mechanism analysis of SVCT2 in UVB-treated HLECs. The results showed a significant reduction of SVCT2 expression in HLECs treated with UVB. SVCT2 abated apoptosis and Bax expression and increased Bcl-2 expression. Moreover, SVCT2 decreased ROS accumulation and MDA level, but increased the activities of antioxidant enzymes (SOD and GSH-PX). NF-κB inhibitor (PDTC) alleviated ROS production and apoptosis, and promoted SVCT2 expression in UVB-treated HLECs. Additionally, ROS inhibitor (NAC) suppressed oxidative stress, apoptosis, and induced SVCT2 expression in UVB-treated HLECs, while these effects were significantly abated due to the activation of NF-κB signaling. Furthermore, SVCT2 facilitated 14C-AsA absorption in UVB-treated HLECs. Together, our findings demonstrated that UVB exposure-induced ROS generation, which further activated NF-κB signaling to down-regulate SVCT2 expression in HLECs. Then, downregulated SVCT2 promoted ROS accumulation and induced apoptosis by decreasing AsA uptake. Our data reveal a novel NF-κB/SVCT2/AsA regulatory pathway and suggest the therapeutic potential of SVCT2 in UVB-induced cataract.
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Affiliation(s)
- Chenjun Guo
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Xiaona Ning
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Jie Zhang
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Chen Zhang
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of China
- Graduate school, Xi’an Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Jue Wang
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Liping Su
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Jing Han
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Nan Ma
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, People’s Republic of China
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27
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Li K, Gong Q, Lu B, Huang K, Tong Y, Mutsvene TE, Lin M, Xu Z, Lu F, Li X, Hu L. Anti-inflammatory and antioxidative effects of gallic acid on experimental dry eye: in vitro and in vivo studies. EYE AND VISION (LONDON, ENGLAND) 2023; 10:17. [PMID: 37122017 PMCID: PMC10150500 DOI: 10.1186/s40662-023-00334-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 02/22/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND To investigate the anti-inflammatory and antioxidative effects of gallic acid (GA) on human corneal epithelial cells (HCECs) and RAW264.7 macrophages as well as its therapeutic effects in an experimental dry eye (EDE) mouse model. METHODS A cell counting kit-8 (CCK-8) assay was used to test the cytotoxicity of GA. The effect of GA on cell migration was evaluated using a scratch wound healing assay. The anti-inflammatory and antioxidative effects of GA in vitro were tested using a hypertonic model (HCECs) and an inflammatory model (RAW264.7 cells). The in vivo biocompatibility of GA was detected by irritation tests in rabbits, whereas the preventive and therapeutic effect of GA in vivo was evaluated using a mouse model of EDE. RESULTS In the range of 0-100 μM, GA showed no cytotoxicity in RAW264.7 cells or HCECs and did not delay the HCECs monolayer wound healing within 24 h. Ocular tolerance to GA in the in vivo irritation test was good after seven days. In terms of antioxidative activity, GA significantly reduced the intracellular reactive oxygen species (ROS) in lipopolysaccharide (LPS) activated RAW264.7 macrophages and HCECs exposed to hyperosmotic stress. Furthermore, after pre-treatment with GA, the expression levels of nuclear factor E2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), and NADPH quinone oxidoreductase-1 (NQO-1) were significantly upregulated in RAW264.7 macrophages. GA also exhibits excellent anti-inflammatory properties. This is mainly demonstrated by the ability of GA to effectively downregulate the nuclear transcription factor-κB (NF-κB) pathway in LPS-activated RAW264.7 macrophages and to reduce inflammatory factors, such as nitric oxide (NO), interleukin 6 (IL-6), and tumor necrosis factor alpha (TNF-α). In vivo efficacy testing results in a mouse model of EDE showed that GA can effectively prevent and inhibit the apoptosis of corneal epithelial cells (CECs), reduce inflammatory factors in the cornea and conjunctiva as well as protect goblet cells. CONCLUSION In vitro and in vivo results indicate that GA possesses potent anti-inflammatory and antioxidative properties with no apparent cytotoxicity within the range of 0-100 μM. It is a promising eye drop formulation for the effective prevention and treatment of dry eye disease (DED).
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Affiliation(s)
- Kexin Li
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Qianwen Gong
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Bin Lu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Kaiyan Huang
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Yixuan Tong
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Tinashe Emmanuel Mutsvene
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Meng Lin
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Zhiqiang Xu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Fan Lu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China.
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China.
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China.
| | - Xingyi Li
- Institute of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027, People's Republic of China.
| | - Liang Hu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China.
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China.
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China.
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28
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Tabolacci E, Tringali G, Nobile V, Duca S, Pizzoferrato M, Bottoni P, Maria Elisabetta C. Rutin Protects Fibroblasts from UVA Radiation through Stimulation of Nrf2 Pathway. Antioxidants (Basel) 2023; 12:antiox12040820. [PMID: 37107196 PMCID: PMC10135198 DOI: 10.3390/antiox12040820] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
This study explores the photoprotective effects of rutin, a bioflavonoid found in some vegetables and fruits, against UVA-induced damage in human skin fibroblasts. Our results show that rutin increases cell viability and reduces the high levels of ROS generated by photo-oxidative stress (1 and 2 h of UVA exposure). These effects are related to rutin’s ability to modulate the Nrf2 transcriptional pathway. Interestingly, activation of the Nrf2 signaling pathway results in an increase in reduced glutathione and Bcl2/Bax ratio, and the subsequent protection of mitochondrial respiratory capacity. These results demonstrate how rutin may play a potentially cytoprotective role against UVA-induced skin damage through a purely antiapoptotic mechanism.
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29
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Du Y, Tong Y, Quan Y, Wang G, Cheng H, Gu S, Jiang JX. Protein kinase A activation alleviates cataract formation via increased gap junction intercellular communication. iScience 2023; 26:106114. [PMID: 36852280 PMCID: PMC9958365 DOI: 10.1016/j.isci.2023.106114] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 12/09/2022] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
Cataract is the leading cause of blindness worldwide. Here, we reported a potential, effective therapeutic mean for cataract prevention and treatment. Gap junction communication, an important mechanism in maintaining lens transparency, is increased by protein kinase A (PKA). We found that PKA activation reduced cataracts induced by oxidative stress, increased gap junctions/hemichannels in connexin (Cx) 50, Cx46 or Cx50 and Cx46 co-expressing cells, and decreased reactive oxygen species (ROS) levels. However, ROS reduction was shown in wild-type, Cx46 and Cx50 knockout, but not in Cx46/Cx50 double KO lens. In addition, PKA activation protects lens fiber cell death induced by oxidative stress via hemichannel-mediated glutathione transport. Connexin deletion increased lens opacity induced by oxidative stress associated with reduction of anti-oxidative stress gene expression. Together, our results suggest that PKA activation through increased connexin channels in lens fiber cell decreases ROS levels and cell death, leading to alleviated cataracts.
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Affiliation(s)
- Yu Du
- Department of Ophthalmology, Lanzhou University Second Hospital; Second Clinical School, Lanzhou University, Lanzhou, Gansu, 730000, China
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
| | - Yuxin Tong
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
| | - Yumeng Quan
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
- Department of Ophthalmology, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Guangyan Wang
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
- Department of Ophthalmology, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Hongyun Cheng
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
| | - Sumin Gu
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
| | - Jean X. Jiang
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229-3900, USA
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30
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Blue light-induced lipid oxidation and the antioxidant property of hypotaurine: evaluation via measuring ultraweak photon emission. Photochem Photobiol Sci 2023; 22:345-356. [PMID: 36271182 DOI: 10.1007/s43630-022-00319-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 10/07/2022] [Indexed: 10/24/2022]
Abstract
The effects of blue light on human body have attracted attention. The human skin in contact with the outside environment is often exposed to blue light, and the effects of this exposure remain to be fully determined. Therefore, in this study, we investigated the effect of blue light, at the intensity typically found in sunlight, on lipids in the skin from an oxidation perspective. Peroxide value (POV) and ultraweak photon emission (UPE) measurements were conducted to evaluate lipid oxidation. Our results confirmed that blue light irradiation induced lipid oxidation, similar to ultraviolet A (UVA) irradiation. Also, the effects of various reagents on the blue light-induced UPE were evaluated; however, the results differed from those of the DPPH radical-scavenging ability. We speculated that this is due to the difference in the evaluation principle; nevertheless, among reagents, hypotaurine not only showed a high antioxidant effect but was also more effective against blue light-induced oxidation than UVA. Based on the difference in the antioxidant effect of the lipid sample in this study, the oxidation reaction induced by blue light may be different from the UVA-induced reaction. Our study provides new insights into the effects of blue light on lipids in the human skin, thereby promoting research regarding photooxidation.
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31
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Kumar A, Raj A, Gupta A, Gautam S, Kumar M, Bherwani H, Anshul A. Pollution free UV-C radiation to mitigate COVID-19 transmission. GONDWANA RESEARCH : INTERNATIONAL GEOSCIENCE JOURNAL 2023; 114:78-86. [PMID: 35936028 PMCID: PMC9345658 DOI: 10.1016/j.gr.2022.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 06/23/2022] [Accepted: 07/03/2022] [Indexed: 06/02/2023]
Abstract
The high rate of transmission of the COVID-19 virus has brought various types of disinfection techniques, for instance, hydrogen peroxide vaporization, microwave generating steam, UV radiation, and dry heating, etc. to prevent the further transmission of the virus. The chemical-based techniques are predominantly used for sanitization of hands, buildings, hospitals, etc. However, these chemicals may affect the health of humans and the environment in unexplored aspects. Furthermore, the UV lamp-based radiation sanitization technique had been applied but has not gained larger acceptability owing to its limitation to penetrate different materials. Therefore, the optical properties of materials are especially important for the utilization of UV light on such disinfection applications. The germicidal or microorganism inactivation application of UV-C has only been in-use in a closed chamber, due to its harmful effect on human skin and the eye. However, it is essential to optimize UV for its use in an open environment for a larger benefit to mitigate the virus spread. In view of this, far UV-C (222 nm) based technology has emerged as a potential option for the sanitization in open areas and degradation of microorganisms present in aerosol during the working conditions. Hence, in the present review article, efforts have been made to evaluate the technical aspects of UV (under the different spectrum and wavelength ranges) and the control of COVID 19 virus spread in the atmosphere including the possibilities of the human body sanitization in working condition.
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Affiliation(s)
- Ashutosh Kumar
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur 440020, India
| | - Abhishek Raj
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur 440020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ankit Gupta
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- CSIR-NEERI, Delhi Zonal Centre, Naraina Industrial Area, New Delhi 110028, India
| | - Sneha Gautam
- Karunya Institute of Technology and Sciences, Karunya Nagar, Coimbatore 641114, India
| | - Manish Kumar
- Experimental Research Laboratory, Department of Physics, ARSD College, University of Delhi, New Delhi 110021, India
| | - Hemant Bherwani
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur 440020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Avneesh Anshul
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur 440020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Hikima T, Ezaki H. Predicting the Safety of Ocular Iontophoresis Using Reconstructed Human Corneal Epithelial Cells. Biol Pharm Bull 2023; 46:1021-1023. [PMID: 37394633 DOI: 10.1248/bpb.b23-00096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
We aimed to investigate eye damage caused by ocular iontophoresis (IP) based on an in vitro eye irritation test using a reconstructed human corneal cell. In this study, the LabCyte CORNEA-MODEL was selected as the reconstructed corneal cell. The test procedure was performed according to Test Guideline No.492 of the Organisation for Economic Co-operation and Development, which was partially revised for the IP. From the relationship between the cell viability of the cornea model and the electric field intensity [current density (mA/cm2) × application time (min)] of the IP, we predicted that the intensity values of 465 mA/cm2 × min and 930 mA/cm2 × min caused reversible eye irritation and irreversible eye damage, respectively. However, further studies are required to improve the accuracy and reproducibility of the prediction. This report provides essential knowledge on the clinical safety of ocular IP.
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Affiliation(s)
- Tomohiro Hikima
- Department of Biosciences and Bioinformatics, Kyushu Institute of Technology
| | - Haruhiko Ezaki
- Department of Biosciences and Bioinformatics, Kyushu Institute of Technology
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Potential Properties of Natural Nutraceuticals and Antioxidants in Age-Related Eye Disorders. LIFE (BASEL, SWITZERLAND) 2022; 13:life13010077. [PMID: 36676026 PMCID: PMC9863869 DOI: 10.3390/life13010077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 12/29/2022]
Abstract
Eye health is crucial, and the onset of diseases can reduce vision and affect the quality of life of patients. The main causes of progressive and irreversible vision loss include various pathologies, such as cataracts, ocular atrophy, corneal opacity, age-related macular degeneration, uncorrected refractive error, posterior capsular opacification, uveitis, glaucoma, diabetic retinopathy, retinal detachment, undetermined disease and other disorders involving oxidative stress and inflammation. The eyes are constantly exposed to the external environment and, for this reason, must be protected from damage from the outside. Many drugs, including cortisonics and antinflammatory drugs have widely been used to counteract eye disorders. However, recent advances have been obtained via supplementation with natural antioxidants and nutraceuticals for patients. In particular, evidence has accumulated that polyphenols (mostly deriving from Citrus Bergamia) represent a reliable source of antioxidants able to counteract oxidative stress accompanying early stages of eye diseases. Luteolin in particular has been found to protect photoreceptors, thereby improving vision in many disease states. Moreover, a consistent anti-inflammatory response was found to occur when curcumin is used alone or in combination with other nutraceuticals. Additionally, Coenzyme Q10 has been demonstrated to produce a consistent effect in reducing ocular pressure, thereby leading to protection in patients undergoing glaucoma. Finally, both grape seed extract, rich in anthocyanosides, and polynsatured fatty acids seem to contribute to the prevention of retinal disorders. Thus, a combination of nutraceuticals and antioxidants may represent the right solution for a multi-action activity in eye protection, in association with current drug therapies, and this will be of potential interest in early stages of eye disorders.
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UVA induces retinal photoreceptor cell death via receptor interacting protein 3 kinase mediated necroptosis. Cell Death Dis 2022; 8:489. [PMID: 36509771 PMCID: PMC9744841 DOI: 10.1038/s41420-022-01273-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022]
Abstract
Ultraviolet light A (UVA) is the only UV light that reaches the retina and can cause indirect damage to DNA via absorption of photons by non-DNA chromophores. Previous studies demonstrate that UVA generates reactive oxygen species (ROS) and leads to programmed cell death. Programmed cell death (PCD) has been implicated in numerous ophthalmologic diseases. Here, we investigated receptor interacting protein 1 and 3 (RIPK1 and RIPK3) kinases, key signaling molecules of PCD, in UVA-induced photoreceptor injury using in vitro and ex vivo models. UVA irradiation activated RIPK3 but not RIPK1 and mediated necroptosis through MLKL that lie downstream of RIPK3 and induced apoptosis through increased oxidative stress. Moreover, RIPK3 but not RIPK1 inhibition suppresses UVA-induced cell death along with the downregulation of MLKL and attenuates the levels of oxidative stress and DNA fragmentation. In conclusion, these results identify RIPK3, not RIPK1, as a critical regulator of UVA-induced necroptosis cell death in photoreceptors and highlight RIPK3 potential as a neuroprotective target.
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Huang JJ, Geduldig JE, Jacobs EB, Tai TYT, Ahmad S, Chadha N, Buxton DF, Vinod K, Wirostko BM, Kang JH, Wiggs JL, Ritch R, Pasquale LR. Head and Neck Region Dermatological Ultraviolet-Related Cancers are Associated with Exfoliation Syndrome in a Clinic-Based Population. Ophthalmol Glaucoma 2022; 5:663-671. [PMID: 35470101 PMCID: PMC9587131 DOI: 10.1016/j.ogla.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVE We assessed the relationship between ultraviolet (UV)-associated dermatological carcinomas (basal cell carcinoma [BCC] and squamous cell carcinoma [SCC]) and exfoliation syndrome (XFS) or exfoliation glaucoma (XFG). DESIGN Case-control study. PARTICIPANTS Between 2019 and 2021, 321 participants and control subjects (XFS or XFG = 98; primary open-angle glaucoma [POAG] = 117; controls = 106; ages 50-90 years) were recruited. METHODS A cross-sectional survey assessing medical history, maximum known intraocular pressure, cup-to-disc ratio, Humphrey visual field 24-2, the propensity to tan or burn in early life, history of BCC or SCC, and XFS or XFG diagnosis. The multivariable models adjusted for age, sex, medical history, eye color, hair color, and likeliness of tanning versus burning at a young age. MAIN OUTCOME MEASURES History of diagnosed XFS or XFG. RESULTS Any history of BCC or SCC in the head and neck region was associated with a 2-fold higher risk of having XFS or XFG versus having POAG or being a control subject (odds ratio [OR], 2.01; 95% confidence interval [CI], 1.04-3.89) in a multivariable-adjusted analysis. We observed a dose-response association in which the chance of having XFS or XFG increased by 67% per head and neck BCC or SCC occurrence (OR, 1.67; 95% CI, 1.09-2.56). When we excluded POAG participants, head and neck BCC or SCC was associated with a 2.8-fold higher risk of XFS or XFG (OR, 2.80; 95% CI, 1.12-7.02), and each additional occurrence had a 2-fold higher risk of XFS or XFG (OR, 1.97; 95% CI, 1.09-3.58). The association between head and neck region BCC or SCC and POAG compared with the control subjects was null (OR, 1.42; 95% CI, 0.58-3.48). With BCC or SCC located anywhere on the body, there was a nonsignificantly higher risk of having XFS or XFG compared with having POAG or being a control subject (OR, 1.65; 95% CI, 0.88-3.09). CONCLUSIONS Head and neck region BCCs or SCCs are associated with a higher risk of having XFS or XFG. These findings support prior evidence that head and neck UV exposure may be a risk factor for XFS.
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Affiliation(s)
- Jeff J Huang
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, New York.
| | - Jack E Geduldig
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Erica B Jacobs
- New York Eye and Ear Infirmary of Mount Sinai, New York, New York
| | - Tak Yee T Tai
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, New York; New York Eye and Ear Infirmary of Mount Sinai, New York, New York
| | - Sumayya Ahmad
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, New York; New York Eye and Ear Infirmary of Mount Sinai, New York, New York
| | - Nisha Chadha
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, New York; New York Eye and Ear Infirmary of Mount Sinai, New York, New York
| | - Douglas F Buxton
- New York Eye and Ear Infirmary of Mount Sinai, New York, New York
| | - Kateki Vinod
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, New York; New York Eye and Ear Infirmary of Mount Sinai, New York, New York
| | | | - Jae H Kang
- Channing Division of Network of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Janey L Wiggs
- Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
| | - Robert Ritch
- New York Eye and Ear Infirmary of Mount Sinai, New York, New York
| | - Louis R Pasquale
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, New York; New York Eye and Ear Infirmary of Mount Sinai, New York, New York
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Toh K, Nishio K, Nakagawa R, Egoshi S, Abo M, Perron A, Sato SI, Okumura N, Koizumi N, Dodo K, Sodeoka M, Uesugi M. Chemoproteomic Identification of Blue-Light-Damaged Proteins. J Am Chem Soc 2022; 144:20171-20176. [DOI: 10.1021/jacs.2c07180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kohei Toh
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Kosuke Nishio
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Reiko Nakagawa
- Laboratory for Cell-Free Protein Synthesis, RIKEN Center for Biosystems Dynamics Research, Kobe, Hyogo 650-0047, Japan
| | - Syusuke Egoshi
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Catalysis and Integrated Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masahiro Abo
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Amelie Perron
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Shin-ichi Sato
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Naoki Okumura
- Department of Biomedical Engineering, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Noriko Koizumi
- Department of Biomedical Engineering, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Kosuke Dodo
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Catalysis and Integrated Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mikiko Sodeoka
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Catalysis and Integrated Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Motonari Uesugi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Uji, Kyoto 611-0011, Japan
- School of Pharmacy, Fudan University, Shanghai 201203, People’s Republic of China
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Zhang X, Luo T, Mou YR, Jiang W, Wu Y, Liu H, Ren YM, Long P, Han F. Morphological and electrophysiological changes of retina after different light damage in three patients: Three case reports. World J Clin Cases 2022; 10:11128-11138. [PMID: 36338204 PMCID: PMC9631161 DOI: 10.12998/wjcc.v10.i30.11128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/20/2022] [Accepted: 09/14/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Light-induced retinal damage is a serious vision-threatening disease, resulting from unsuitable laser irradiation, high-power light and sustaining light exposure. Therefore, effectively evaluate the morphological and functional of retinal damage is urgently needed. Now, we mainly reported three patients suffered from typical light irradiations.
CASE SUMMARY Patient 1 suffered from old laser pointer irradiation and followed with amblyopia treatment. Patient 2 suffered from acute high-energy light irradiation. Patient 3 suffered from sustaining optical fiber irradiation. Detailed morphological and functional examinations of the retina revealed that the lesions of the three patients had many similar characteristics, such as macular morphological changes, patent pattern visual monitoring amplitude or peak time abnormalities, multi-fucus electroretinograms macular central amplitude density decreased.
CONCLUSION In conclusion, light-induced retinopathy has many common features, which can help clinical medical staff to diagnose retinal photodamage diseases.
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Affiliation(s)
- Xi Zhang
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
| | - Tao Luo
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
| | - Yan-Rong Mou
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
| | - Wei Jiang
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
| | - Yan Wu
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
| | - Heng Liu
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
| | - Yi-Ming Ren
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
| | - Pan Long
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
| | - Fei Han
- Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China
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Nebbioso M, Franzone F, Lambiase A, Bonfiglio V, Limoli PG, Artico M, Taurone S, Vingolo EM, Greco A, Polimeni A. Oxidative Stress Implication in Retinal Diseases-A Review. Antioxidants (Basel) 2022; 11:antiox11091790. [PMID: 36139862 PMCID: PMC9495599 DOI: 10.3390/antiox11091790] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress (OS) refers to an imbalance between free radicals (FRs), namely highly reactive molecules normally generated in our body by several pathways, and intrinsic antioxidant capacity. When FR levels overwhelm intrinsic antioxidant defenses, OS occurs, inducing a series of downstream chemical reactions. Both reactive oxygen species (ROS) and reactive nitrogen species (RNS) are produced by numerous chemical reactions that take place in tissues and organs and are then eliminated by antioxidant molecules. In particular, the scientific literature focuses more on ROS participation in the pathogenesis of diseases than on the role played by RNS. By its very nature, the eye is highly exposed to ultraviolet radiation (UVR), which is directly responsible for increased OS. In this review, we aimed to focus on the retinal damage caused by ROS/RNS and the related retinal pathologies. A deeper understanding of the role of oxidative and nitrosative stress in retinal damage is needed in order to develop targeted therapeutic interventions to slow these pathologies.
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Affiliation(s)
- Marcella Nebbioso
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
- Correspondence:
| | | | - Alessandro Lambiase
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
| | - Vincenza Bonfiglio
- Department of Experimental Biomedicine and Clinical Neuroscience, Ophthalmology Section, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy
| | | | - Marco Artico
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
| | | | - Enzo Maria Vingolo
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
| | - Antonio Greco
- Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome, p.le A. Moro 5, 00185 Rome, Italy
| | - Antonella Polimeni
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome 5, p.le A. Moro 5, 00185 Rome, Italy
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Hossain RR, Oh JA, McLintock C, Murphy C, McKelvie J. Ocular Surface Squamous Neoplasia: A 12-Month Prospective Evaluation of Incidence in Waikato, New Zealand. Vision (Basel) 2022; 6:vision6030050. [PMID: 35997381 PMCID: PMC9397019 DOI: 10.3390/vision6030050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/03/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
Ocular surface squamous neoplasia (OSSN) has a high incidence in the southern hemisphere. This prospective study evaluated the incidence of OSSN in the Waikato region of New Zealand. All patients presenting with pterygium or conjunctival lesions in the Waikato region in 2020 were included. All surgeons in the region were asked to send all conjunctival and corneal specimens excised for histopathologic examination. The primary outcome measure was the incidence of OSSN. Eighty-eight percent of all excised specimens were sent for histopathologic examination. Of the 185 excised lesions sent for histopathological assessment, 18 (10%) were reported as OSSN. Patients were on average 69.4 years of age (standard deviation, SD = 6.9), predominantly male (78%), and of New Zealand-European ethnicity (89%). The OSSN annual incidence was 3.67/100,000/year. Histology grades included conjunctival intraepithelial neoplasia (CIN)-I (25%), CIN-II (25%), CIN-III (12.5%), carcinoma in situ (25%), and invasive squamous cell carcinoma (SCC) (12.5%). One patient with invasive SCC required exenteration. This study identified a high incidence rate of OSSN and is the first prospective study to analyze OSSN epidemiology in New Zealand.
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Affiliation(s)
- Ruhella R Hossain
- Department of Ophthalmology, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1010, New Zealand
- Department of Ophthalmology, Hawkes Bay District Health Board, Hastings 4120, New Zealand
| | - Jee Ah Oh
- Department of Ophthalmology, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1010, New Zealand
| | - Cameron McLintock
- Department of Ophthalmology, Princess Alexandra Hospital, Brisbane, QLD 4102, Australia
| | - Chris Murphy
- Department of Ophthalmology, Waikato District Health Board, Hamilton 3204, New Zealand
| | - James McKelvie
- Department of Ophthalmology, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1010, New Zealand
- Department of Ophthalmology, Waikato District Health Board, Hamilton 3204, New Zealand
- Correspondence:
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40
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Wong NA, Bahmani H. A review of the current state of research on artificial blue light safety as it applies to digital devices. Heliyon 2022; 8:e10282. [PMID: 36042717 PMCID: PMC9420367 DOI: 10.1016/j.heliyon.2022.e10282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 05/13/2022] [Accepted: 08/09/2022] [Indexed: 12/24/2022] Open
Abstract
Light is necessary for human health and well-being. As we spend more time indoors, we are being increasingly exposed to artificial light. The development of artificial lighting has allowed us to control the brightness, colour, and timing of our light exposure. Yet, the widespread use of artificial light has raised concerns about the impact of altering our light environment on our health. The widespread adoption of personal digital devices over the past decade has exposed us to yet another source of artificial light. We spend a significant amount of time using digital devices with light-emitting screens, including smartphones and tablets, at close range. The light emitted from these devices, while appearing white, has an emission spectrum with a peak in the blue range. Blue light is often characterised as hazardous as its photon energy is higher than that of other wavelengths of visible light. Under certain conditions, visible blue light can cause harm to the retina and other ocular structures. Blue light can also influence the circadian rhythm and processes mediated by melanopsin-expressing intrinsically photosensitive retinal ganglion cells. While the blue component of sunlight is necessary for various physiological processes, whether the low-illuminance artificial blue light emitted from digital devices presents a risk to our health remains an ongoing area of debate. As technological advancements continue, it is relevant to understand how new devices may influence our well-being. This review examines the existing research on artificial blue light safety and the eye, visual performance, and circadian functions.
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Affiliation(s)
| | - Hamed Bahmani
- Dopavision GmbH, Berlin, Germany.,Department of Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Tuebingen, Germany
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Pecorelli A, Valacchi G. Oxidative-Stress-Sensitive microRNAs in UV-Promoted Development of Melanoma. Cancers (Basel) 2022; 14:cancers14133224. [PMID: 35804995 PMCID: PMC9265047 DOI: 10.3390/cancers14133224] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 11/23/2022] Open
Abstract
Simple Summary Exposure to ultraviolet (UV) rays from the sun is one of the most important modifiable risk factors for skin cancer. Melanoma is the most life-threatening type of skin cancer. UV-induced DNA damage and oxidative stress represent two main mechanisms that, directly and indirectly, contribute to melanomagenesis. In addition, an interplay of abnormally expressed microRNAs (miRNAs) and redox imbalance is a hallmark in several cancers, including melanoma. UV radiation can be the central hub between these two cellular aberrations, as it is able to stimulate both. Here, to gain new mechanistic insights into melanomagenesis and identify new therapeutic targets for the prevention and treatment of melanoma, we report current evidence suggesting a complex interaction between UV-promoted deregulation of redox-sensitive miRNAs and known signal-transduction pathways underlying malignant transformation of melanocytes to melanoma. Abstract Melanoma is the most aggressive and life-threatening form of skin cancer. Key molecular events underlying the melanocytic transformation into malignant melanoma mainly involve gene mutations in which exposure to ultraviolet (UV) radiation plays a prominent role. However, several aspects of UV-induced melanomagenesis remain to be explored. Interestingly, redox-mediated signaling and perturbed microRNA (miRNA) profiles appear to be interconnected contributing factors able to act synergistically in melanoma initiation and progression. Since UV radiation can promote both redox imbalance and miRNA dysregulation, a harmful crosstalk between these two key cellular networks, with UV as central hub among them, is likely to occur in skin tissue. Therefore, decoding the complex circuits that orchestrate the interaction of UV exposure, oxidative stress, and dysregulated miRNA profiling can provide a deep understanding of the molecular basis of the melanomagenesis process. Furthermore, these mechanistic insights into the reciprocal regulation between these systems could have relevant implications for future therapeutic approaches aimed at counteracting UV-induced redox and miRNome imbalances for the prevention and treatment of malignant melanoma. In this review, we illustrate current information on the intricate connection between UV-induced dysregulation of redox-sensitive miRNAs and well-known signaling pathways involved in the malignant transformation of normal melanocytes to malignant melanoma.
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Affiliation(s)
- Alessandra Pecorelli
- Department of Animal Science, N.C. Research Campus, Plants for Human Health Institute, North Carolina State University, Kannapolis, NC 28081, USA;
| | - Giuseppe Valacchi
- Department of Animal Science, N.C. Research Campus, Plants for Human Health Institute, North Carolina State University, Kannapolis, NC 28081, USA;
- Department of Environment and Prevention, University of Ferrara, 44121 Ferrara, Italy
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Korea
- Correspondence: ; Tel.: +1-704-250-5433
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Light-responsive biomaterials for ocular drug delivery. Drug Deliv Transl Res 2022:10.1007/s13346-022-01196-5. [PMID: 35751001 DOI: 10.1007/s13346-022-01196-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2022] [Indexed: 11/03/2022]
Abstract
Light-responsive biomaterials can be used for the delivery of therapeutic drugs and nucleic acids, where the tunable/precise delivery of payload highlights the potential of such biomaterials for treating a variety of conditions. The translucency of eyes and advances of laser technology in ophthalmology make light-responsive delivery of drugs feasible. Importantly, light can be applied in a non-invasive fashion; therefore, light-triggered drug delivery systems have great potential for clinical impact. This review will examine various types of light-responsive polymers and the chemistry that underpins their application as ophthalmic drug delivery systems.
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Esposito G, Balzamino BO, Rocco ML, Aloe L, Micera A. Nerve Growth Factor (NGF) as Partaker in the Modulation of UV-Response in Cultured Human Conjunctival Fibroblasts. Int J Mol Sci 2022; 23:ijms23116337. [PMID: 35683016 PMCID: PMC9181148 DOI: 10.3390/ijms23116337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/02/2022] [Accepted: 06/03/2022] [Indexed: 11/21/2022] Open
Abstract
Corroborating data sustain the pleiotropic effect of nerve growth factor (NGF) in the protection of the visual system from dangerous stimuli, including ultraviolet (UV). Since UV exposure might promote ocular surface changes (conjunctival inflammation and matrix rearrangement), as previously reported from in vivo studies sustaining some protective NGF effects, in vitro cultures of human conjunctival fibroblasts (FBs) were developed and exposed to a single UV exposure over 15 min (0.277 W/m2), either alone or supplemented with NGF (1–10–100 ng/mL). Conditioned media and cell monolayers were collected and analyzed for protein release (ELISA, ELLA microfluidic) and transcript expression (real-time PCR). A specific “inflammatory to remodeling” pattern (IL8, VEGF, IL33, OPN, and CYR61) as well as a few epigenetic transcripts (known as modulator of cell differentiation and matrix-remodeling (DNMT3a, HDAC1, NRF2 and KEAP1)) were investigated in parallel. UV-exposed FBs (i), showed no proliferation or significant cytoskeleton rearrangement; (ii), displayed a trkANGFR/p75NTR phenotype; and (iii), synthesized/released IL8, VEGF-A, IL33, OPN, and CYR61, as compared to unexposed ones. NGF addition counteracted IL8, IL33, OPN, and CYR61 protein release merely at lower NGF concentrations but not VEGF. NGF supplementation did not affect DNMT3a or HDAC1 transcripts, while it significantly upregulated NRF2 at lowest NGF doses and did not change KEAP1 expression. Taken together, a single UV exposure activated conjunctival FBs to release pro-inflammatory/fibrogenic factors in association with epigenetic changes. The effects were selectively counteracted by NGF supplementation in a dose-dependent fashion, most probably accountable to the trkANGFR/p75NTR phenotype. Further in vitro studies are underway to better understand this additional NGF pleiotropic effect. Since UV-shield impairments represent a worldwide alert and UV radiation can slowly affect ocular surface homeostasis (photo-ageing, cataract) or might exacerbate ocular diseases with a preexisting fibrosis (pterygium, VKC), these findings on NGF modulation of UV-exposed FBs might provide additional information for protecting the ocular surface (homeostasis) from low-grade long-lasting UV insults.
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Affiliation(s)
- Graziana Esposito
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Science, IRCCS—Fondazione Bietti, 00198 Rome, Italy; (G.E.); (B.O.B.)
| | - Bijorn Omar Balzamino
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Science, IRCCS—Fondazione Bietti, 00198 Rome, Italy; (G.E.); (B.O.B.)
| | - Maria Luisa Rocco
- Institute of Cell Biology and Neurobiology, CNR, 00143 Rome, Italy;
- Fondazione IRET, 40064 Bologna, Italy;
| | - Luigi Aloe
- Fondazione IRET, 40064 Bologna, Italy;
- Associazione NGF ONLUS, 00172 Rome, Italy
| | - Alessandra Micera
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Science, IRCCS—Fondazione Bietti, 00198 Rome, Italy; (G.E.); (B.O.B.)
- Correspondence:
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El-Aziz FEZAA, Ismail MS, Askary AE, El-Kott AF, Tantawy AA. The assessment of the protective impact of spidroin extract against UV-A radiation damage by using earthworms (Aporrectodea caliginosa) as a robust human skin model via macroscopic and histological observations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:44906-44916. [PMID: 35141825 PMCID: PMC9200702 DOI: 10.1007/s11356-022-18861-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
Numerous studies have confirmed the damage caused by excessive exposure to ultraviolet-A rays. Malignant melanoma and skin cancer are two of the most serious health consequences. Thus, the UV-A protectant is intended to protect the skin, especially the two primary layers of skin (epidermis that represents the interface between the body and its surroundings and dermis). Spider silk is the most powerful natural fibre due to its regeneration, biocompatibility, antimicrobial, wound healing, antiseptic, and blood clotting properties. This work targeted to determine the protective effect of spidroin extract against UV-A radiation damage. Earthworms Aporrectodea caliginosa were collected from Assiut University's farm. Each set of ten earthworms was separated into six groups and placed in a plastic container. Webs of spiders collected from trees and old houses. Spidroin was extracted and utilised in this work to determine the potential effects of topical application on UV-A protection. The experiment is divided into two sections: (1) UV-A exposure and (2) the use of spidroin extract to protect the earthworms from ultraviolet radiation. Two control groups (1،2) of worms were not received UV-A exposure, and four groups (3,4,5,6) were exposed to UVR-A. In contrast, groups (5,6) were received spidroin extract before exposure to UV-A. Each group from the groups (3,4,5,6) was exposed for three consecutive days (¼ hour/day, ½ hour/day, and 1 h/day), using a UV-Lamp with a wavelength of 366 nm. The histopathological changes revealed that after 1⁄4 h of UV exposure, the cuticle was swollen with a slightly detached epithelium. The cuticle was down after 1⁄2 h of exposure, and the epidermis was totally damaged and necrosed. After 1 h, the exposure showed destruction of the epidermis in the circular muscle with a loss of muscle filament integrity, varying size, and altered nucleus form, along with mild disintegration of longitudinal muscle. Spidroin extract is critical for earthworm protection against UV-A radiation damage and able to regeneration. For the first time, morphological and histological analysis was established to detect the Spidroin extract evaluated for topical application on earthworms. Earthworms can be considered as a robust human skin model prior to UV-A exposure. It induces a complete protective effect against UV-A radiation damage in earthworms.
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Affiliation(s)
| | - May S Ismail
- Pharmaceutics Department, Faculty of Pharmacy, South Valley University, Qena, Egypt
| | - Ahmad El Askary
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O.Box 11099, Taif, 21944, Saudi Arabia
| | - Attalla F El-Kott
- Biology Department, Faculty of Science, King Khalid University, Abha, 61421, Saudi Arabia
- Zoology Department, College of Science, Damanhour University, Damanhour, 22511, Egypt
| | - Ahmed A Tantawy
- Biotechnology Department, Faculty of Science, Zagazig University, Zagazig, Egypt.
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Tang SL, Liang XF, Li L, Wu J, Lu K. Genome-wide identification and expression patterns of opsin genes during larval development in Chinese perch (Siniperca chuatsi). Gene X 2022; 825:146434. [PMID: 35304240 DOI: 10.1016/j.gene.2022.146434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 02/01/2022] [Accepted: 03/11/2022] [Indexed: 11/16/2022] Open
Abstract
Vision is important for fish to forage food and fishes express opsin genes to receive visual signals. Chinese perch (Siniperca chuatsi) larvae prey on other fish species larvae at firstfeeding but donoteat any zooplankton, the expression of opsin genes in S. chuatsilarvae is unknown. In this study, we conducted a whole-genome analysis and demonstrated that S. chuatsihave5cone opsin genes (sws1, sws2Aα, sws2Aβ, rh2and lws)and 2 rod opsin genes (rh1and rh1-exorh). The syntenicanalysisshowedthe flanking genes ofall opsin genes were conserved during fish evolution, but the ancestorof S. chuatsimightlost some opsin gene copies duringtheevolution.The phylogeneticanalysisshowed sws1of S. chuatsiwas closest to those of Lates calcariferwhich had a truncated sws1gene; the sws2Aα, sws2Aβ,lws,rh2,rh1 andrh1-exorh of S. chuatsihad a closer relationship with those of Percomorpha fishes.Importantly, results of in situhybridization showed the sws1 opsingene,which is related to forage zooplankton,had extremely low levelexpression in retinaat early stages.Surprisingly, the rh2 opsin gene had a high level expression at firstfeeding stage. The sws2Aα, sws2Aβand lwshad a little expression at early stages but the lwsshowed a increasing trend with larval development, rh1 opsin gene expression appeared at15 dph. In thisstudy, we found a specialpattern of visual opsin genes expression in S. chuatsi, it might influence the larval first feeding and feeding habit.
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Affiliation(s)
- Shu-Lin Tang
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Xu-Fang Liang
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China.
| | - Ling Li
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Jiaqi Wu
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Ke Lu
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
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Dehghan S, Mirshahi R, Shoae-Hassani A, Naseripour M. Human-induced pluripotent stem cells-derived retinal pigmented epithelium, a new horizon for cells-based therapies for age-related macular degeneration. Stem Cell Res Ther 2022; 13:217. [PMID: 35619143 PMCID: PMC9137077 DOI: 10.1186/s13287-022-02894-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 05/02/2022] [Indexed: 02/07/2023] Open
Abstract
Retinal pigment epithelium (RPE) degeneration is the hallmark of age-related macular degeneration (AMD). AMD, as one of the most common causes of irreversible visual impairment worldwide, remains in need of an appropriate approach to restore retinal function. Wet AMD, which is characterized by neovascular formation, can be stabilized by currently available therapies, including laser photocoagulation, photodynamic therapy, and intraocular injections of anti-VEFG (anti-vascular endothelial growth factor) therapy or a combination of these modalities. Unlike wet AMD, there is no effective therapy for progressive dry (non-neovascular) AMD. However, stem cell-based therapies, a part of regenerative medicine, have shown promising results for retinal degenerative diseases such as AMD. The goal of RPE cell therapy is to return the normal structure and function of the retina by re-establishing its interaction with photoreceptors, which is essential to vision. Considering the limited source of naturally occurring RPE cells, recent progress in stem cell research has allowed the generation of RPE cells from human pluripotent cells, both embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSC). Since iPSCs face neither ethical arguments nor significant immunological considerations when compared to ESCs, they open a new horizon for cell therapy of AMD. The current study aims to discuss AMD, review the protocols for making human iPSCs-derived RPEs, and summarize recent developments in the field of iPSC-derived RPEs cell therapy.
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Affiliation(s)
- Samaneh Dehghan
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.,Eye Research Center, The Five Senses Health Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Mirshahi
- Eye Research Center, The Five Senses Health Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Shoae-Hassani
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Masood Naseripour
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran. .,Eye Research Center, The Five Senses Health Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
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Jurja S, Negreanu‑Pirjol T, Vasile M, Hincu M, Ciuluvica R, Negreanu‑Pirjol BS. Comparative antioxidant activity of various ophthalmic product types for artificial tears under different experimental conditions. Exp Ther Med 2022; 23:330. [PMID: 35401809 PMCID: PMC8987944 DOI: 10.3892/etm.2022.11259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/09/2022] [Indexed: 11/07/2022] Open
Abstract
Artificial tears or lubricants is a developing category in pharmaceutical research, due to the permanent increasing incidence of dry eye syndrome caused by the extensive use of personal computers and other gadget screens, associated with global warming and pollution. Considering the role of inflammation in dry eye syndrome, characterized by the production of free radicals, it is imperative to determine which elements are more significant in forming an artificial tear more effectively and more comfortably for the eye state and for the quality of life. Thus, the aim of the present study was to examine the evolution of the total antioxidant capacity of some frequently commercialized artificial tears via the photochemiluminescence method, using an antioxidant capacity of lipid soluble substances procedure, prior and subsequent to the exposure of these therapy agents to some physical agents. This is a preliminary research aiming to evaluate the impact of various environmental factors on these ophthalmic products, to be continued by evaluating whether the effectiveness of these products, in terms of objective examination and patient preference and adherence criteria, is impacted by the conditions of use and storage. Thus, the total antioxidant capacity of the evaluated artificial tear samples after UVC irradiation at 254 nm wavelength was studied, in order to investigate whether their status suffered any change in terms of antioxidant potential. In addition to the findings obtained in the study, some recommendations were also made.
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Affiliation(s)
- Sanda Jurja
- Faculty of Medicine, ‘Ovidius’ University of Constanta, 900470 Constanta, Romania
| | | | - Monica Vasile
- Faculty of Medicine, ‘Ovidius’ University of Constanta, 900470 Constanta, Romania
| | - Mihaela Hincu
- Faculty of Medicine, ‘Dunarea de Jos’ University, 800010 Galati, Romania
| | - Radu Ciuluvica
- Faculty of Medical Dentistry, ‘Carol Davila’ University of Medicine and Pharmacy, 010221 Bucharest, Romania
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Wang S, Yu M, Yan H, Liu J, Guo C. MiR-34a-5p negatively regulates oxidative stress on lens epithelial cells by silencing GPX3 - a novel target. Curr Eye Res 2022; 47:727-734. [PMID: 35180020 DOI: 10.1080/02713683.2022.2029905] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Purpose MiR-34a-5p is reported to be related with age-related nuclear cataract. This study investigated the mechanism of miR-34a-5p in the regulation of oxidative stress on lens epithelial cells.Methods The three candidate miRNAs were screened by CCK-8 assays after transfection of mimics or inhibitor in H2O2-treated HLE-B3 cells. The apoptosis, ROS level and GPX activity of HLE-B3 cells transfected with miR-34a-5p mimics or inhibitor were analysed by flow cytometry, cellular ROS and GPX activity test. The target genes of miR-34a-5p were predicted by proteomic and bioinformatic analysis. The relationship between miR-34a-5p and GPX3 were internally validated by qRT-PCR and Western blot and externally verified by dual-luciferase reporter assay. The effect of miR-34a-5p-GPX3 axis on regulation of oxidative stress in HLE-B3 cells were conducted by overexpression of GPX3 and tested by flow cytometry analysis, cellular ROS and GPX detection.Results The viability of H2O2-treated HLE-B3 cells were weakened by up-regulated miR-34a-5p. Cell apoptosis and oxidative damage were also induced by overexpression of miR-34a-5p. GPX3 and SRC were identified as target genes of miR-34a-5p by combined analysis of proteomic and bioinformatics, while GPX3 was selected for further research for its connection with anti-oxidation. Western blot and qRT-PCR tests proved that GPX3 is negatively regulated by miR-34a-5p. Dual-luciferase reporter assay verified that GPX3 is the direct target of miR-34a-5p. The increased oxidative stress induced by transfection of miR-34a-5p mimics in H2O2-treated HLE-B3 cells was attenuated by overexpression of GPX3.Conclusions MiR-34a-5p is a negative regulator of oxidative stress on lens epithelial cells and the mechanism is by silencing the expression of GPX3. These data suggests that miR-34a-5p may be a potential novel therapeutic target for the prevention and treatment of age-related cataract.
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Affiliation(s)
- Song Wang
- Xi'an Fourth Hospital, Shaanxi Eye Hospital, Affiliated Xi'an Fourth Hospital, Northwestern Polytechnical University, Xi'an, 710004, Shaanxi, China.,Department of Ophthalmic Center, General Hospital of Xinjiang Military Region, Urumqi, 830013, Xinjiang, China
| | - Mengsi Yu
- Department of Clinical Laboratory, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Hong Yan
- Xi'an Fourth Hospital, Shaanxi Eye Hospital, Affiliated Xi'an Fourth Hospital, Northwestern Polytechnical University, Xi'an, 710004, Shaanxi, China.,Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi, China
| | - Jun Liu
- Department of Ophthalmology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, Shaanxi, China
| | - Chenjun Guo
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi, China
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Navel V, Sapin V, Henrioux F, Blanchon L, Labbé A, Chiambaretta F, Baudouin C, Dutheil F. Oxidative and antioxidative stress markers in dry eye disease: A systematic review and meta-analysis. Acta Ophthalmol 2022; 100:45-57. [PMID: 33938134 DOI: 10.1111/aos.14892] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 04/10/2021] [Indexed: 12/11/2022]
Abstract
PURPOSE To conduct a systematic review and meta-analysis on the levels of oxidative stress markers and antioxidants in dry eye disease (DED) compared with healthy subject. METHOD The PubMed, Cochrane Library, Embase, Science Direct and Google Scholar databases were searched on 10 January 2021 for studies reporting oxidative and antioxidative stress markers in DED and healthy controls. Main meta-analysis was stratified by type of biomarkers, type of samples (tears, conjunctival cells or biopsies), Sjögren's syndrome (SS) (patients with or without SS) and by geographical zones (Asia or Europe). RESULTS We included nine articles, for a total of 333 patients (628 eye samples) with DED and 165 healthy controls (451 eye samples). There is an overall increase in oxidative stress markers in DED compared with healthy controls (standard mean deviation = 2.39, 95% confidence interval 1.85-2.94), with a significant increase in lipid peroxide (1.90, 0.69-3.11), myeloperoxidase (2.17, 1.06-3.28), nitric oxide synthase 3 (2.52, 0.95-4.08), xanthine oxidase/oxidoreductase (2.41, 1.40-5.43), 4-hydroxy-2-nonenal (4HNE) (4.75, 1.67-7.84), malondialdehyde (3.00, 2.55-3.45) and reactive oxygen species (1.31, 0.94-1.68). Oxidative stress markers were higher in tears, conjunctival cells and conjunctival biopsies of DED than controls. Even if small number of studies were included for antioxidants, catalase seemed to be decreased in DED compared with healthy controls (-2.17, -3.00 to -1.34), with an increase of antioxidants in tears of DED patients without SS (1.13, 0.76-1.49). CONCLUSION Oxidative stress markers, and probably antioxidants, were dysregulated in DED, establishing a local oxidative environment in tears, conjunctival cells and tissues.
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Affiliation(s)
- Valentin Navel
- University Hospital of Clermont‐Ferrand CHU Clermont‐Ferrand, Ophthalmology Clermont‐Ferrand France
- Université Clermont Auvergne CNRS UMR 6293 INSERM U1103 Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team Clermont‐Ferrand France
| | - Vincent Sapin
- Université Clermont Auvergne CNRS UMR 6293 INSERM U1103 Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team Clermont‐Ferrand France
- University Hospital of Clermont‐Ferrand CHU Clermont‐Ferrand, Biochemistry and Molecular Genetics Clermont‐Ferrand France
| | - Fanny Henrioux
- Université Clermont Auvergne CNRS UMR 6293 INSERM U1103 Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team Clermont‐Ferrand France
| | - Loïc Blanchon
- Université Clermont Auvergne CNRS UMR 6293 INSERM U1103 Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team Clermont‐Ferrand France
| | - Antoine Labbé
- Department of Ophthalmology III Quinze‐Vingts National Ophthalmology Hospital IHU FOReSIGHT Paris France
- Sorbonne Université INSERM CNRS Institut de la Vision Paris France
- Department of Ophthalmology Ambroise Paré Hospital APHP Université de Versailles Saint‐Quentin en Yvelines Versailles France
| | - Frédéric Chiambaretta
- University Hospital of Clermont‐Ferrand CHU Clermont‐Ferrand, Ophthalmology Clermont‐Ferrand France
- Université Clermont Auvergne CNRS UMR 6293 INSERM U1103 Genetic Reproduction and Development Laboratory (GReD) Translational Approach to Epithelial Injury and Repair Team Clermont‐Ferrand France
| | - Christophe Baudouin
- Department of Ophthalmology III Quinze‐Vingts National Ophthalmology Hospital IHU FOReSIGHT Paris France
- Sorbonne Université INSERM CNRS Institut de la Vision Paris France
- Department of Ophthalmology Ambroise Paré Hospital APHP Université de Versailles Saint‐Quentin en Yvelines Versailles France
| | - Frédéric Dutheil
- Université Clermont Auvergne CNRS LaPSCo Physiological and Psychosocial Stress CHU Clermont‐Ferrand University Hospital of Clermont‐Ferrand, Preventive and Occupational Medicine Witty Fit Clermont‐Ferrand France
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Kapfelsberger A, Eckstein J, von Ahrentschildt A, Bischoff J, Marx S, Sickenberger W. Ultraviolet and Visible Transmittance of Soft Contact Lenses with and without Ultraviolet Blockers. Optom Vis Sci 2021; 98:1270-1278. [PMID: 34510145 DOI: 10.1097/opx.0000000000001796] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
SIGNIFICANCE Ultraviolet (UV) and visible light transmittance of soft contact lenses (SCLs) was measured. A significant difference in UV transmittance has been found between SCLs with a positive and negative back vertex power (BVP). It can be shown that thicker SCLs absorb more UV radiation. PURPOSE This study aimed to determine UV and visible light transmittance of different SCLs with and without UV protection filters. METHODS Twenty-one lens brands were investigated in the BVP range of -12.00 to +6.00 D. Three SCLs were measured per BVP 25 times. Three hundred thirty-nine SCLs with UV filter (stenfilcon A, somofilcon A, narafilcon A, senofilcon A, senofilcon C, etafilcon A, nesofilcon A) and 489 SCLs without UV filter (delefilcon A, lotrafilcon A, lotrafilcon B, comfilcon A, balafilcon A, samfilcon A, asmofilcon A, nelfilcon A, omafilcon A, hilafilcon B, ocufilcon D, hioxifilcon A, omafilcon B) have been examined. The measurement setup was created according to ISO 18369-3. RESULTS All UV-absorbing labeled test SCLs meet UV protection class 2. senofilcon A, senofilcon C, and narafilcon A meet the higher UV protection class 1 level. A statistically significant difference in UV transmittance (280 to 380 nm) has been found between SCLs with a positive BVP (+1.00 to +6.00 D) and SCLs with a negative BVP (-1.00 to -12.00 D), both without (P = .04) and with UV filters (P = .02). CONCLUSIONS With the ISO-conforming, diopter-independent measurement setup, the UV-absorbing test contact lenses that meet the current international standards, regardless of their BVP, were identified. Lenses with increased center thickness absorb more UV radiation. Further studies may use a modified measurement setup with a larger aperture than 10 mm. It would also be worthwhile to examine the UV absorption of the contact lens over the complete corneal area and limbal area because UV radiation may damage inner ocular tissues like the crystalline lens as well as limbal stem cells.
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Affiliation(s)
- Andrea Kapfelsberger
- JENVIS Research c/o Ernst-Abbe University of Applied Sciences Jena, Jena, Germany
| | - Julia Eckstein
- JENVIS Research c/o Ernst-Abbe University of Applied Sciences Jena, Jena, Germany
| | | | - Jürgen Bischoff
- Ernst-Abbe University of Applied Sciences Jena, Jena, Germany
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