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Wang W, Deng J, Yin C, Wang F, Zhang C, Yu C, Gong S, Zhan X, Chen S, Shen D. Study of association between corneal shape parameters and axial length elongation during orthokeratology using image-pro plus software. BMC Ophthalmol 2024; 24:163. [PMID: 38609888 PMCID: PMC11010382 DOI: 10.1186/s12886-024-03398-6] [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: 03/01/2023] [Accepted: 03/14/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND The aim was to validate the correlation between corneal shape parameters and axial length growth (ALG) during orthokeratology using Image-Pro Plus (IPP) 6.0 software. METHODS This retrospective study used medical records of myopic children aged 8-13 years (n = 104) undergoing orthokeratology. Their corneal topography and axial length were measured at baseline and subsequent follow-ups after lens wear. Corneal shape parameters, including the treatment zone (TZ) area, TZ diameter, TZ fractal dimension, TZ radius ratio, eccentric distance, pupil area, and pupillary peripheral steepened zone(PSZ) area, were measured using IPP software. The impact of corneal shape parameters at 3 months post-orthokeratology visit on 1.5-year ALG was evaluated using multivariate linear regression analysis. RESULTS ALG exhibited significant associations with age, TZ area, TZ diameter, TZ fractal dimension, and eccentric distance on univariate linear regression analysis. Multivariate regression analysis identified age, TZ area, and eccentric distance as significantly correlated with ALG (all P < 0.01), with eccentric distance showing the strongest correlation (β = -0.370). The regressive equation was y = 1.870 - 0.235a + 0.276b - 0.370c, where y represents ALG, a represents age, b represents TZ area, and c represents eccentric distance; R2 = 0.27). No significant relationships were observed between the TZ radius ratio, pupillary PSZ area, and ALG. CONCLUSIONS IPP software proves effective in capturing precise corneal shape parameters after orthokeratology. Eccentric distance, rather than age or the TZ area, significantly influences ALG retardation.
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Affiliation(s)
- W Wang
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China.
| | - J Deng
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
- School of Ophthalmology and Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - C Yin
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
| | - F Wang
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
| | - C Zhang
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
| | - C Yu
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
| | - S Gong
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
| | - X Zhan
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
| | - S Chen
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
| | - D Shen
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
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Zhang M, Guo Y, Zhou C, Zhang J, Zhang M, Huang J, Du Y, Ge S, Zhou C, Zhou Y. Deep neural network with self-attention based automated determination system for treatment zone and peripheral steepened zone in Orthokeratology for adolescent myopia. Cont Lens Anterior Eye 2024; 47:102081. [PMID: 37957085 DOI: 10.1016/j.clae.2023.102081] [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: 03/18/2023] [Revised: 10/27/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023]
Abstract
PURPOSE The aim of this study is to develop an automatic model based on deep learning techniques for determining the Treatment Zone (TZ) and Peripheral Steepened Zone (PSZ) following Orthokeratology (OK) treatment. METHODS A total of 1346 corneal topography maps were included in the study. A deep neural network based on the Segformer architecture was constructed to automatically detect TZ and PSZ. The model was optimized and trained multiple times, and the areas of TZ, PSZ, and TZ decentration were calculated based on the segmentation results. RESULTS The mean Intersection over Union (mIoU) of the overall segmentation results of the model reached over 97% after multiple training with different optimization methods, and the IoU for the TZ and PSZ segmentation tasks were 98.08% and 94.54% in test set, respectively. Moreover, the model demonstrated high consistency with the expert annotation for the TZ segmentation, while a significant difference was found in the PSZ segmentation and expert annotation due to several interference factors. CONCLUSION This study presents an efficient and repeatable system for clinical research, based on a deep neural network that accurately determines TZ and PSZ after OK treatment using the Segformer architecture. However, further deployment validation may be necessary.
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Affiliation(s)
- Mingxu Zhang
- Eye School of Chengdu University of T.C.M, Shierqiao Road 37(th), Jinniu District, Chengdu, Sichuan Province 610032, China; Key Laboratory of Sichuan Province Ophthalmopathy Prevention & Cure and Visual Function Protection, Shierqiao Road 37th, Jinniu District, Chengdu, Sichuan Province 610032, China; Beijing Ming Vision & Ophthalmology, Chongwenwai Street16(th), Dongcheng District, Beijing 100062, China.
| | - Yujuan Guo
- Eye School of Chengdu University of T.C.M, Shierqiao Road 37(th), Jinniu District, Chengdu, Sichuan Province 610032, China; Key Laboratory of Sichuan Province Ophthalmopathy Prevention & Cure and Visual Function Protection, Shierqiao Road 37th, Jinniu District, Chengdu, Sichuan Province 610032, China
| | - Chengwei Zhou
- International School of Beijing, Anhua Street 10(th), Shunyi District, Beijing 101300, China
| | - Jing Zhang
- Beijing Ming Vision & Ophthalmology, Chongwenwai Street16(th), Dongcheng District, Beijing 100062, China
| | - Meimei Zhang
- Eye School of Chengdu University of T.C.M, Shierqiao Road 37(th), Jinniu District, Chengdu, Sichuan Province 610032, China; Key Laboratory of Sichuan Province Ophthalmopathy Prevention & Cure and Visual Function Protection, Shierqiao Road 37th, Jinniu District, Chengdu, Sichuan Province 610032, China; Beijing Ming Vision & Ophthalmology, Chongwenwai Street16(th), Dongcheng District, Beijing 100062, China
| | - Ju Huang
- Hospital of Chengdu University of T.C.M, Shierqiao Road 41(st), Jinniu District, Chengdu, Sichuan Province 610032, China
| | - Yuqin Du
- Eye School of Chengdu University of T.C.M, Shierqiao Road 37(th), Jinniu District, Chengdu, Sichuan Province 610032, China; Key Laboratory of Sichuan Province Ophthalmopathy Prevention & Cure and Visual Function Protection, Shierqiao Road 37th, Jinniu District, Chengdu, Sichuan Province 610032, China; Beijing Ming Vision & Ophthalmology, Chongwenwai Street16(th), Dongcheng District, Beijing 100062, China
| | - Shanshan Ge
- Eye School of Chengdu University of T.C.M, Shierqiao Road 37(th), Jinniu District, Chengdu, Sichuan Province 610032, China; Key Laboratory of Sichuan Province Ophthalmopathy Prevention & Cure and Visual Function Protection, Shierqiao Road 37th, Jinniu District, Chengdu, Sichuan Province 610032, China; Beijing Ming Vision & Ophthalmology, Chongwenwai Street16(th), Dongcheng District, Beijing 100062, China
| | - Chunyang Zhou
- Eye School of Chengdu University of T.C.M, Shierqiao Road 37(th), Jinniu District, Chengdu, Sichuan Province 610032, China; Key Laboratory of Sichuan Province Ophthalmopathy Prevention & Cure and Visual Function Protection, Shierqiao Road 37th, Jinniu District, Chengdu, Sichuan Province 610032, China
| | - Yuehua Zhou
- Eye School of Chengdu University of T.C.M, Shierqiao Road 37(th), Jinniu District, Chengdu, Sichuan Province 610032, China; Key Laboratory of Sichuan Province Ophthalmopathy Prevention & Cure and Visual Function Protection, Shierqiao Road 37th, Jinniu District, Chengdu, Sichuan Province 610032, China; Beijing Ming Vision & Ophthalmology, Chongwenwai Street16(th), Dongcheng District, Beijing 100062, China.
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Qi Y, Li J, Mapuranga J, Zhang N, Chang J, Shen Q, Zhang Y, Wei J, Cui L, Liu D, Yang W. Wheat leaf rust fungus effector Pt13024 is avirulent to TcLr30. FRONTIERS IN PLANT SCIENCE 2023; 13:1098549. [PMID: 36726676 PMCID: PMC9885084 DOI: 10.3389/fpls.2022.1098549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/16/2022] [Indexed: 06/18/2023]
Abstract
Wheat leaf rust, caused by Puccinia triticina Eriks. (Pt), is a global wheat disease threatening wheat production. Dissecting how Pt effector proteins interact with wheat has great significance in understanding the pathogenicity mechanisms of Pt. In the study, the cDNA of Pt 13-5-72 interacting with susceptible cultivar Thatcher was used as template to amplify Pt13024 gene. The expression pattern and structure of Pt13024 were analyzed by qRT-PCR and online softwares. The secretion function of Pt13024 signal peptide was verified by the yeast system. Subcellular localization of Pt13024 was analyzed using transient expression on Nicotiana benthamiana. The verification that Pt13024 inhibited programmed cell death (PCD) was conducted on N. benthamiana and wheat. The deletion mutation of Pt13024 was used to identify the virulence function motif. The transient transformation of wheat mediated by the type III secretion system (TTSS) was used to analyze the activity of regulating the host defense response of Pt13024. Pt13024 gene silencing was performed by host-induced gene silencing (HIGS). The results showed that Pt13024 was identified as an effector and localized in the cytoplasm and nucleus on the N. benthamiana. It can inhibit PCD induced by the Bcl-2-associated X protein (BAX) from mice and infestans 1 (INF1) from Phytophthora infestans on N. benthamiana, and it can also inhibit PCD induced by DC3000 on wheat. The amino acids 22 to 41 at N-terminal of the Pt13024 are essential for the inhibition of programmed cell death (PCD) induced by BAX. The accumulation of reactive oxygen species and deposition of callose in near-isogenic line TcLr30, which is in Thatcher background with Lr30, induced by Pt13024 was higher than that in 41 wheat leaf rust-resistant near-isogenic lines (monogenic lines) with different resistance genes and Thatcher. Silencing of Pt13024 reduced the leaf rust resistance of Lr30 during the interaction between Pt and TcLr30. We can conclude that Pt13024 is avirulent to TcLr30 when Pt interacts with TcLr30. These findings lay the foundation for further investigations into the role of Pt effector proteins in pathogenesis and their regulatory mechanisms.
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Affiliation(s)
- Yue Qi
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Jianyuan Li
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
- College of Biological Sciences and Engineering, Xingtai University, Xingtai, China
| | - Johannes Mapuranga
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
| | - Na Zhang
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
| | - Jiaying Chang
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
| | - Qianhua Shen
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Yue Zhang
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
- Dryland Farming Institute, Hebei Academy of Agricultural and Forestry Science, Hengshui, China
| | - Jie Wei
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
- Department of Agriculture and Animal Husbandry Engineering, Cangzhou Technical College, Cangzhou, China
| | - Liping Cui
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
| | - Daqun Liu
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
| | - Wenxiang Yang
- Department of Plant Pathology, Agricultural University of Hebei/Technological Innovation Center for Biological Control of Plant Diseases and Insect Pests of Hebei Province/National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding, China
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Duan J, Xiang L, Yang Z, Chen L, Gu J, Lu K, Ma D, Zhao H, Yi B, Zhao H, Ning J. Methionine Restriction Prevents Lipopolysaccharide-Induced Acute Lung Injury via Modulating CSE/H 2S Pathway. Nutrients 2022; 14:322. [PMID: 35057502 PMCID: PMC8777780 DOI: 10.3390/nu14020322] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/31/2021] [Accepted: 01/08/2022] [Indexed: 12/15/2022] Open
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) result in high mortality, whereas effective treatments are limited. Methionine restriction (MR) has been reported to offer various benefits against multiple pathological processes of organ injuries. However, it remains unknown whether MR has any potential therapeutic value for ALI/ARDS. The current study was set to investigate the therapeutic potential of MR on lipopolysaccharide (LPS)-induced ALI and its underlying mechanisms. We found that MR attenuated LPS-induced pulmonary edema, hemorrhage, atelectasis, and alveolar epithelial cell injuries in mice. MR upregulated cystathionine-gamma-lyase (CSE) expression and enhanced the production of hydrogen sulfide (H2S). MR also inhibited the activation of Toll-like receptors 4 (TLR4)/NF-κB/NOD-like receptor protein 3 (NLRP3), then reduced IL-1β, IL-6, and TNF-α release and immune cell infiltration. Moreover, the protective effects of MR on LPS-induced ALI were abrogated by inhibiting CSE, whereas exogenous H2S treatment alone mimicked the protective effects of MR in Cse-/- mice after LPS administration. In conclusion, our findings showed that MR attenuated LPS-induced lung injury through CSE and H2S modulation. This work suggests that developing MR towards clinical use for ALI/ARDS patients may be a valuable strategy.
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Affiliation(s)
- Jiaxiang Duan
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing 400038, China; (J.D.); (Z.Y.); (J.G.); (K.L.)
| | - Lunli Xiang
- Department of Nephrology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China;
| | - Zhen Yang
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing 400038, China; (J.D.); (Z.Y.); (J.G.); (K.L.)
| | - Li Chen
- Department of Breast and Thyroid Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, China;
| | - Jianteng Gu
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing 400038, China; (J.D.); (Z.Y.); (J.G.); (K.L.)
| | - Kaizhi Lu
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing 400038, China; (J.D.); (Z.Y.); (J.G.); (K.L.)
| | - Daqing Ma
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London SW10 9NH, UK; (D.M.); (H.Z.)
| | - Hailin Zhao
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London SW10 9NH, UK; (D.M.); (H.Z.)
| | - Bin Yi
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing 400038, China; (J.D.); (Z.Y.); (J.G.); (K.L.)
| | - Hongwen Zhao
- Department of Nephrology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China;
| | - Jiaolin Ning
- Department of Anesthesia, Southwest Hospital, Third Military Medical University, Chongqing 400038, China; (J.D.); (Z.Y.); (J.G.); (K.L.)
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Wu J, Wu Q, Bo Z, Zhu X, Zhang J, Li Q, Kong W. Comprehensive Effects of Flowering Locus T-Mediated Stem Growth in Tobacco. FRONTIERS IN PLANT SCIENCE 2022; 13:922919. [PMID: 35783923 PMCID: PMC9243646 DOI: 10.3389/fpls.2022.922919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 05/31/2022] [Indexed: 05/13/2023]
Abstract
In flowering plants, Flowering locus T (FT) encodes a major florigen. It is a key flowering hormone in controlling flowering time and has a wide range of effects on plant development. Although the mechanism by which FT promotes flowering is currently clearly understood, comprehensive effects of the FT gene on plant growth have not been evaluated. Therefore, the effects of FT on vegetative growth need to be explored for a complete understanding of the molecular functions of the FT gene. In this study, the Jatropha curcas L. FT gene was overexpressed in tobacco (JcFTOE) in order to discover multiple aspects and related mechanisms of how the FT gene affects plant development. In JcFTOE plants, root, stem, and leaf development was strongly affected. Stem tissues were selected for further transcriptome analysis. In JcFTOE plants, stem growth was affected because of changes in the nucleus, cytoplasm, and cell wall. In the nucleus of JcFTOE plants, the primary effect was to weaken all aspects of DNA replication, which ultimately affected the cell cycle and cell division. The number of stem cells decreased significantly in JcFTOE plants, which decreased the thickness and height of tobacco stems. In the cell wall of JcFTOE plants, hemicellulose and cellulose contents increased, with the increase in hemicellulose associated with up-regulation of xylan synthase-related genes expression. In the cytoplasm of JcFTOE plants, the primary effects were on biogenesis of ribonucleoprotein complexes, photosynthesis, carbohydrate biosynthesis, and the cytoskeleton. In addition, in the cytoplasm of JcFTOE plants, there were changes in certain factors of the core oscillator, expression of many light-harvesting chlorophyll a/b binding proteins was down-regulated, and expression of fructose 1,6-bisphosphatase genes was up-regulated to increase starch content in tobacco stems. Changes in the xylem and phloem of JcFTOE plants were also identified, and in particular, xylem development was affected by significant increases in expression of irregular xylem genes.
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Affiliation(s)
- Jun Wu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
- Microbiology and Metabolic Engineering Key Laboratory of Sichuan Province, Chengdu, China
- *Correspondence: Jun Wu,
| | - Qiuhong Wu
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Zhongjian Bo
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Xuli Zhu
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Junhui Zhang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Qingying Li
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Wenqing Kong
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
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Tang Y, Chen Z, Wang W, Wen L, Zhou L, Wang M, Tang F, Tang H, Lan W, Yang Z. A Deep Learning-Based Framework for Accurate Evaluation of Corneal Treatment Zone After Orthokeratology. Transl Vis Sci Technol 2021; 10:21. [PMID: 34932118 PMCID: PMC8709934 DOI: 10.1167/tvst.10.14.21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Given the robust effectiveness of inhibiting myopia progression, orthokeratology has gained increasing popularity worldwide. However, identifying the boundary and the center of reshaped corneal area (i.e., treatment zone) is the main challenging task in evaluating the performance of orthokeratology. Here we present automated deep learning algorithms to solve the challenges. Methods A total of 6328 corneal topographical maps, including 2996 axial subtractive maps and 3332 tangential subtractive maps, were collected from 2044 myopic patients who received orthokeratology. The boundary and the center of the treatment zones were annotated by experts as ground truths using axial subtractive maps and tangential subtractive maps, respectively. The algorithms based on neural network structures of fully convolutional networks (FCNs) and convolutional neural networks (CNNs) were developed to automatically identify the boundary and the center of the treatment zone, respectively. Results The algorithm of FCNs identified the treatment zone boundaries with an accuracy intersection over union (IoU) of 0.90 ± 0.06 (mean ± SD; range, 0.60-0.97). The algorithm of CNNs also identified the treatment zone centers with an average deviation of 0.22 ± 0.22 mm (range, 0.01-1.66 mm). Conclusions These results show that a deep learning-based solution is able to provide an automatic and accurate tool to accomplish the two main challenges of orthokeratology. Translational Relevance Deep learning in orthokeratology can shorten the time while maintaining accurate results in clinical practice, which enables clinicians to help more patients daily.
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Affiliation(s)
- Yong Tang
- School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhao Chen
- Aier School of Ophthalmology, Central South University, Changsha, China
| | - Weijia Wang
- School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu, China
| | - Longbo Wen
- Aier School of Ophthalmology, Central South University, Changsha, China
| | - Linjing Zhou
- School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu, China
| | - Mao Wang
- Information Center, Aier Eye Hospital Group, Changsha, China
| | - Fan Tang
- Information Center, Aier Eye Hospital Group, Changsha, China
| | - He Tang
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
| | - Weizhong Lan
- Aier School of Ophthalmology, Central South University, Changsha, China.,Guangzhou Aier Eye Hospital, Jinan University, Guangzhou, China
| | - Zhikuan Yang
- Aier School of Ophthalmology, Central South University, Changsha, China.,Hunan Province Optometry Engineering Technology Research Center, Changsha, China
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Dual Targeting of Cancer Cells and MMPs with Self-Assembly Hybrid Nanoparticles for Combination Therapy in Combating Cancer. Pharmaceutics 2021; 13:pharmaceutics13121990. [PMID: 34959271 PMCID: PMC8707712 DOI: 10.3390/pharmaceutics13121990] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/05/2021] [Accepted: 11/19/2021] [Indexed: 01/21/2023] Open
Abstract
The co-delivery of chemotherapeutic agents and immune modulators to their targets remains to be a great challenge for nanocarriers. Here, we developed a hybrid thermosensitive nanoparticle (TMNP) which could co-deliver paclitaxel-loaded transferrin (PTX@TF) and marimastat-loaded thermosensitive liposomes (MMST/LTSLs) for the dual targeting of cancer cells and the microenvironment. TMNPs could rapidly release the two payloads triggered by the hyperthermia treatment at the site of tumor. The released PTX@TF entered cancer cells via transferrin-receptor-mediated endocytosis and inhibited the survival of tumor cells. MMST was intelligently employed as an immunomodulator to improve immunotherapy by inhibiting matrix metalloproteinases to reduce chemokine degradation and recruit T cells. The TMNPs promoted the tumor infiltration of CD3+ T cells by 2-fold, including memory/effector CD8+ T cells (4.2-fold) and CD4+ (1.7-fold), but not regulatory T cells. Our in vivo anti-tumor experiment suggested that TMNPs possessed the highest tumor growth inhibitory rate (80.86%) compared with the control group. We demonstrated that the nanoplatform could effectively inhibit the growth of tumors and enhance T cell recruitment through the co-delivery of paclitaxel and marimastat, which could be a promising strategy for the combination of chemotherapy and immunotherapy for cancer treatment.
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Wang X, Song Z, Li H, Liu K, Sun Y, Liu X, Wang M, Yang Y, Su S, Li Z. Short-wavelength blue light contributes to the pyroptosis of human lens epithelial cells (hLECs). Exp Eye Res 2021; 212:108786. [PMID: 34624334 DOI: 10.1016/j.exer.2021.108786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/17/2021] [Accepted: 10/01/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE The purpose of this study is to examine the effect of short-wavelength blue light (SWBL) on cultured human lens epithelial cells (hLECs). The pathogenesis of cataracts after SWBL exposure is discussed. METHODS HLE-B3 hLECs were randomly divided into 3 groups: the NC group, which was grown in a dark incubator; the acetyl (Ac)-Tyr-Val-Ala-Asp-chloromethyl ketone (AC-YVAD-CMK) treatment group; and the SWBL exposure group. After SWBL (2500 lux) irradiation (for 8, 16, 24, and 32 h), caspase-1 and gasdermin D (GSDMD) expression levels in HLE-B3 hLECs were examined using ELISA, immunofluorescence staining, and Western blotting analyses. Double-positive staining of hLECs for activated and inhibited caspase-1 was used to determine pyroptosis in HLE-B3 hLECs. RESULTS SWBL led to hLEC death, but a caspase-1 inhibitor suppressed cell death. The flow cytometry results also confirmed the dose-dependent effect of SWBL irradiation on the pyroptotic death of hLECs. Caspase-1 and GSDMD expression levels in all hLEC groups changed with blue light exposure times (8, 16, 24, and 32 h) and were higher in the AC-YVAD-CMK and SWBL exposure groups than in the NC group. The immunofluorescence results revealed higher GSDMD-N expression in the cell membrane of both the AC-YVAD-CMK and SWBL exposure groups than in the NC group. CONCLUSIONS Based on the data, SWBL induces pyroptotic programmed cell death by activating the GSDMD signalling axis in HLE-B3 hLECs. These results provide new insights into the exploitation of new candidates for the prevention of cataracts.
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Affiliation(s)
- Xiaohui Wang
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China
| | - Zhaowei Song
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China
| | - Huazhang Li
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China
| | - Kexin Liu
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China
| | - Ying Sun
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China; Department of Ophthalmology, Second Hospital of Heilongjiang Province, Harbin, China
| | - Xiangyu Liu
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China
| | - Meiyu Wang
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China
| | - Yuexing Yang
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China
| | - Sheng Su
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China
| | - Zhijian Li
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, China.
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Hu Y, Yu J, Cui X, Zhang Z, Li Q, Guo W, Zhao C, Chen X, Meng M, Li Y, Guo M, Qiu J, Shen F, Wang D, Ma X, Xu L, Shen F, Gu X. Combination Usage of AdipoCount and Image-Pro Plus/ImageJ Software for Quantification of Adipocyte Sizes. Front Endocrinol (Lausanne) 2021; 12:642000. [PMID: 34421815 PMCID: PMC8371441 DOI: 10.3389/fendo.2021.642000] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 07/14/2021] [Indexed: 11/13/2022] Open
Abstract
In recent decades, the prevalence of obesity has been rising. One of the major characteristics of obesity is fat accumulation, including hyperplasia (increase in number) and hypertrophy (increase in size). After histological staining, it is critical to accurately measure the number and size of adipocytes for assessing the severity of obesity in a timely fashion. Manual measurement is accurate but time-consuming. Although commercially available adipocyte counting tools, including AdipoCount, Image-Pro Plus, and ImageJ were helpful, limitations still exist in accuracy and time consuming. In the present study, we introduced the protocol of combined usage of these tools and illustrated the process with histological staining slides from adipose tissues of lean and obese mice. We found that the adipocyte sizes quantified by the tool combination were comparable as manual measurement, whereas the combined methods were more efficient. Besides, the recognition effect of monochrome segmentation image is better than that of color segmentation image. Overall, we developed a combination method to measure adipocyte sizes accurately and efficiently, which may be helpful for experimental process in laboratory and also for clinic diagnosis.
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Affiliation(s)
- Yepeng Hu
- Department of Endocrine and Metabolic Diseases, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jian Yu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiangdi Cui
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhe Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Qianqian Li
- Department of Endocrine and Metabolic Diseases, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wenxiu Guo
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Cheng Zhao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xin Chen
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Meiyao Meng
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Yu Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Mingwei Guo
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Jin Qiu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Fei Shen
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, College of Physical Education and Health, East China Normal University, Shanghai, China
| | - Dongmei Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xinran Ma
- Department of Endocrine and Metabolic Diseases, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Lingyan Xu
- Department of Endocrine and Metabolic Diseases, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
- *Correspondence: Lingyan Xu, ; Feixia Shen, ; Xuejiang Gu,
| | - Feixia Shen
- Department of Endocrine and Metabolic Diseases, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- *Correspondence: Lingyan Xu, ; Feixia Shen, ; Xuejiang Gu,
| | - Xuejiang Gu
- Department of Endocrine and Metabolic Diseases, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- *Correspondence: Lingyan Xu, ; Feixia Shen, ; Xuejiang Gu,
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Rong L, Li H, Li Z, Ouyang J, Ma Y, Song F, Chen Y. FAM83A as a Potential Biological Marker Is Regulated by miR-206 to Promote Cervical Cancer Progression Through PI3K/AKT/mTOR Pathway. Front Med (Lausanne) 2020; 7:608441. [PMID: 33344485 PMCID: PMC7746878 DOI: 10.3389/fmed.2020.608441] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 10/26/2020] [Indexed: 02/06/2023] Open
Abstract
Background and Objective: Chemotherapy and radiotherapy are effective treatment options for cervical cancer (CC), but their efficacy is limited by short survival rate of about 5 years particularly for advance stage CC. Bioinformatics analysis combined with experimental in vivo and in vitro data can identify potential markers of tumorigenesis and cancer progression to improve CC prognosis and survival rate of the patients. This study aims to investigate the prognostic value of family with sequence similarity 83, member A (FAM83A) gene and miR-206 in promoting CC progression and the involved genetic signaling pathways. Method: This was a bioinformatic analysis study based on RNA sequencing data of The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases and verification by in vivo and in vitro experimental data. It was designed to evaluate whether the aberrantly expressed gene signatures could serve as new potential biomarker to improve prognosis prediction in CC. The TCGA RNA sequencing data [306 cervical squamous cell carcinoma (SCC) and endocervical adenocarcinoma samples and 13 adjacent samples] and GEO data (GSE9750 and GSE52903 datasets) were integrated and performed a bioinformatics analysis. Results: The results showed that CC-associated FAM83A gene serves as a key regulator of CC development and progression. Functionally, we observed that FAM83A is significantly overexpressed in CC, which is linked to poor overall survival as well as disease-free survival in CC patients. The in-vitro and in-vivo assessments performed after silencing FAM83A revealed that cell proliferation was significantly inhibited and the S-phase cell cycle arrest was induced. Mechanistically, FAM83A plays a role in PI3K/AKT signaling, and its downstream molecules could promote CC cell proliferation. Furthermore, functionality assessments by in-vitro luciferase reporter system and immunoblot analysis showed that miR-206 was the upstream of FAM83A and negatively correlated with FAM83A. Conclusion: The miR-206/FAM83A/PI3K/AKT signaling pathway possibly serves as a critical effector in CC progression indicating the potential prognostic value of FAM83A gene as a novel biomarker for CC progression.
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Affiliation(s)
- Li Rong
- Chongqing Public Health Medical Center, Chongqing, China
| | - Haiyu Li
- Chongqing Public Health Medical Center, Chongqing, China
| | - Zhaodong Li
- Chongqing Public Health Medical Center, Chongqing, China
| | - Jing Ouyang
- Chongqing Medical University, Chongqing, China
| | - Yongping Ma
- Chongqing Public Health Medical Center, Chongqing, China
| | - Fangzhou Song
- Chongqing Public Health Medical Center, Chongqing, China
| | - Yaokai Chen
- Chongqing Medical University, Chongqing, China
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Liao C, Lin X, Keel S, Ha J, Yang X, He M. Effects of corneal crosslinking on corneal shape stabilization after orthokeratology. Sci Rep 2020; 10:2357. [PMID: 32047218 PMCID: PMC7012905 DOI: 10.1038/s41598-020-59157-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 01/06/2020] [Indexed: 12/04/2022] Open
Abstract
Orthokeratology (Ortho-K) works to reshape cornea and is the only non-surgical way to enable vision without corrective aids. However, its effect is only temporary, and successful stabilization requires ongoing Ortho-K wear to maintain the reshaping effect. Corneal crosslinking (CXL) is a commonly-used technique in clinical practice to stabilize corneal shape in keratoconic eyes. However, whether or not CXL can stabilize corneal shape after Ortho-K in normal cornea has not been reported. Therefore, this proof-of-concept study using 2 rhesus monkeys aimed to determine the efficacy of the combined procedure. One monkey wore Ortho-K bilaterally for 24 hours, and the other from 6 pm to 8 am for 7 days. The left eyes of both monkeys underwent CXL after Ortho-K while the contralateral eye served as control. Results showed a gradual regression of corneal shape in all eyes with or without CXL. However, eyes underwent CXL regressed more slowly than the control eyes. The control eyes and the CXL treatment eye in the 7-day Ortho-K monkey regressed completely at last, while the CXL treatment eye in the 24 h Ortho-K monkey maintained a corneal flattening of −1.48 D 27 days after procedure. These findings suggest CXL can slow the regression of Ortho-K for a short duration, but cannot sustain its effect according to the current protocol.
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Affiliation(s)
- Chimei Liao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Xingyan Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Stuart Keel
- Center for Eye Research Australia; Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Australia
| | - Jason Ha
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia
| | - Xiao Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.
| | - Mingguang He
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.
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Li Z, Cui D, Long W, Hu Y, He L, Yang X. Predictive Role of Paracentral Corneal Toricity Using Elevation Data for Treatment Zone Decentration During Orthokeratology. Curr Eye Res 2018; 43:1083-1089. [PMID: 29806506 DOI: 10.1080/02713683.2018.1481516] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
PURPOSE To investigate the influence of paracentral corneal toricity using elevation data on the treatment zone decentration of spherical and toric orthokeratology (Ortho-k) lens. METHODS Corneal elevation difference (CED) was defined as the difference of corneal elevation between the two principle meridians at 8-mm chord, representing the paracentral corneal toricity. Seventy-five subjects included in this prospective study were divided into a low CED (LCED) group (LCED<30μm, n = 25) and a high CED (HCED) group (HCED≥30μm, n = 50). All subjects in the LCED group and 25 subjects in the HCED group (HCED I) were fitted with spherical Ortho-k; the other 25 subjects in the HCED group (HCED II) were fitted with toric Ortho-k. Corneal topography data from the right eyes were obtained at baseline and after 1 month of lens wear. The amount and direction of treatment zone decentration among the three groups were compared, and their relationships with corneal shape parameters, including central and paracentral corneal toricity, corneal asymmetry, flat-k and eccentricity, and lens diameter were analyzed using univariable and multivariate linear regression models. RESULTS The magnitude of treatment zone decentration was the greatest in the HCED I group ((LCED vs. HCED I vs. HCED II: 0.47 ± 0.15mm vs. 0.73 ± 0.15mm vs. 0.47 ± 0.19mm, respectively; ANOVA, p < 0.01). Among participants fitted with spherical Ortho-k, the magnitude of treatment zone decentration was significantly correlated to paracentral CED after adjusting for the other corneal parameters and lens diameter (standard β = 0.599, p < 0.01). No significant correlation between these parameters was found among those fitted with toric Ortho-k. CONCLUSIONS Eyes with greater paracentral CED tend to have increased decentration of spherical Ortho-k lens, whereas toric Ortho-k appears to reduce the amount of lens decentration in eyes with CED at 8-mm chord above 30 μm.
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Affiliation(s)
- Zhouyue Li
- a State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center , Sun Yat-sen University , Guangzhou , China
| | - Dongmei Cui
- a State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center , Sun Yat-sen University , Guangzhou , China
| | - Wen Long
- a State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center , Sun Yat-sen University , Guangzhou , China
| | - Yin Hu
- a State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center , Sun Yat-sen University , Guangzhou , China
| | - Liying He
- a State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center , Sun Yat-sen University , Guangzhou , China
| | - Xiao Yang
- a State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center , Sun Yat-sen University , Guangzhou , China
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Interaction of DCF1 with ATP1B1 induces impairment in astrocyte structural plasticity via the P38 signaling pathway. Exp Neurol 2018; 302:214-229. [DOI: 10.1016/j.expneurol.2018.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/16/2017] [Accepted: 01/08/2018] [Indexed: 12/18/2022]
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Variability in split-thickness skin graft depth when using an air-powered dermatome: A paediatric cohort study. Burns 2017; 43:1552-1560. [DOI: 10.1016/j.burns.2017.02.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 02/15/2017] [Accepted: 02/20/2017] [Indexed: 11/22/2022]
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Influence of Overnight Orthokeratology on Corneal Surface Shape and Optical Quality. J Ophthalmol 2017; 2017:3279821. [PMID: 29098084 PMCID: PMC5642882 DOI: 10.1155/2017/3279821] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/06/2017] [Accepted: 09/14/2017] [Indexed: 01/15/2023] Open
Abstract
Purpose To investigate the changes of corneal surface shape and optical quality during orthokeratology. Methods 49 eyes of 26 patients (10.63 ± 2.02 years old) who underwent overnight orthokeratology for myopia were prospectively examined. The corneal surface shape parameters, including surface regularity index (SRI) and surface asymmetry index (SAI), were attained with an OPD-III SCAN. The higher-order aberrations and higher-order Strehl ratios were calculated under a 3 mm pupil diameter before orthokeratology, 1 month, 3 months, and 6 months after orthokeratology. A P value of less than 0.05 was statistically significant. Results Months after orthokeratology, SRI and SAI were both showing a significant increase in comparison with those before orthokeratology (P < 0.001). After orthokeratology, for a 3 mm pupil, the higher-order Strehl ratio presented a reduction of 0.217 μm (P < 0.001), and the higher-order aberration root mean square (HOA RMS) showed a mean increase of 0.100 μm (P < 0.001). There were significant increases in spherical aberration (P < 0.001) and coma (P = 0.044) after orthokeratology. Trefoil showed a slight reduction at month 6 after orthokeratology, but there was no statistical significance (P = 0.722). Conclusion Overnight orthokeratology for a correction of myopia resulted in a significant improvement in refractive error but increased corneal irregularity and ocular higher-order aberrations, especially in spherical aberration.
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