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Kanda P, Gupta A, Gottlieb C, Karanjia R, Coupland SG, Bal MS. Pathophysiology of central serous chorioretinopathy: a literature review with quality assessment. Eye (Lond) 2022; 36:941-962. [PMID: 34654892 PMCID: PMC9046392 DOI: 10.1038/s41433-021-01808-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 09/15/2021] [Accepted: 10/01/2021] [Indexed: 01/31/2023] Open
Abstract
The pathogenesis of central serous chorioretinopathy (CSCR), a pachychoroid disease, is poorly understood. While choroid hyperpermeability and retinal pigment epithelium dysfunction are cornerstones for developing CSCR, the mechanisms at the retinal, vascular, retinal pigment epithelium, and cellular level continue to be an enigma. A few preclinical studies and the development of small-sized, poorly controlled clinical trials have resulted in limited insight into the disease mechanism. Effective treatments for CSCR are still lacking as current trials have produced inconsistent results for functional and structural gains. Thus, critically evaluating the literature to explore disease mechanisms and provide an up-to-date understanding of pathophysiology can provide valuable information and avenues to new treatments. In this study, a comprehensive summary of the mechanistic insight into CSCR is presented while highlighting the shortcomings of current literature. The mechanism was divided into seven sub-categories including mechanical obstruction, inflammation, oxidative stress, paracrine factors, autonomic dysfunction, mineralocorticoid receptors activation, and medications. We implemented validated tools like the JBI and CAMARADES to objectively analyze the quality of both clinical and preclinical studies, respectively. Overall, our analysis of the literature showed that no single mechanism was populated with a large number of sufficiently sized and good-quality studies. However, compiling these studies gave hints not only to CSCR pathogenesis but also pachychoroid disease in general while providing suggestions for future exploration.
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Affiliation(s)
- Pushpinder Kanda
- grid.28046.380000 0001 2182 2255Department of Ophthalmology, Faculty of Medicine, University of Ottawa, Ottawa, ON Canada ,grid.412687.e0000 0000 9606 5108University of Ottawa Eye Institute, The Ottawa Hospital, Ottawa, ON Canada
| | - Arnav Gupta
- grid.28046.380000 0001 2182 2255Faculty of Medicine, University of Ottawa, Ottawa, ON Canada
| | - Chloe Gottlieb
- grid.28046.380000 0001 2182 2255Department of Ophthalmology, Faculty of Medicine, University of Ottawa, Ottawa, ON Canada ,grid.412687.e0000 0000 9606 5108University of Ottawa Eye Institute, The Ottawa Hospital, Ottawa, ON Canada ,grid.412687.e0000 0000 9606 5108Ottawa Hospital Research Institute, Ottawa, ON Canada
| | - Rustum Karanjia
- grid.28046.380000 0001 2182 2255Department of Ophthalmology, Faculty of Medicine, University of Ottawa, Ottawa, ON Canada ,grid.412687.e0000 0000 9606 5108University of Ottawa Eye Institute, The Ottawa Hospital, Ottawa, ON Canada ,grid.412687.e0000 0000 9606 5108Ottawa Hospital Research Institute, Ottawa, ON Canada ,grid.280881.b0000 0001 0097 5623Doheny Eye Institute, Los Angeles, CA 90033 USA ,grid.19006.3e0000 0000 9632 6718Doheny Eye Centers UCLA, Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, CA 91105 USA
| | - Stuart G. Coupland
- grid.28046.380000 0001 2182 2255Department of Ophthalmology, Faculty of Medicine, University of Ottawa, Ottawa, ON Canada ,grid.412687.e0000 0000 9606 5108University of Ottawa Eye Institute, The Ottawa Hospital, Ottawa, ON Canada ,grid.28046.380000 0001 2182 2255Faculty of Medicine, University of Ottawa, Ottawa, ON Canada
| | - Manpartap Singh Bal
- grid.511274.4Queen’s University School of Medicine, Department of Ophthalmology, Kingston Health Science Centre, Kingston, ON Canada
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Sirakaya E, Duru Z, Kuçuk B, Duru N. Monocyte to high-density lipoprotein and neutrophil-to-lymphocyte ratios in patients with acute central serous chorioretinopathy. Indian J Ophthalmol 2021; 68:854-858. [PMID: 32317461 PMCID: PMC7350498 DOI: 10.4103/ijo.ijo_1327_19] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Purpose: To investigate monocyte to high-density lipoprotein (HDL) ratio (MHR) and neutrophil-to-lymphocyte ratio (NLR) as indicators of systemic inflammation in acute central serous chorioretinopathy (CSC). Methods: The HDL levels, hematological profiles, erythrocyte sedimentation rates (ESR), and C-reactive protein (CRP) levels of 38 patients with acute CSC (Group I) and 38 controls without CSC (Group II) were measured. Results: MHRs were significantly higher in Group I (13.30 ± 2.95) than in Group II (11.52 ± 2.42, P = 0.005), whereas NLRs, CRP values, and ESR values did not significantly differ between the groups (P = 0.726, P = 0.219, and P = 0.441, respectively). Multivariate analysis revealed that the MHR was an independent predictor of acute CSC (OR = 1.266, 95% CI = 1.054-1.521, P = 0.012). Conclusion: Indicating an association between increased MHRs and acute CSC, the MHR might represent simple, inexpensive, reliable biomarkers of inflammation in acute CSC.
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Affiliation(s)
- Ender Sirakaya
- Department of Ophthalmology, The Kayseri City Hospital, Kayseri, Turkey
| | - Zeynep Duru
- Department of Ophthalmology, The Kayseri City Hospital, Kayseri, Turkey
| | - Bekir Kuçuk
- Department of Ophthalmology, The Kayseri City Hospital, Kayseri, Turkey
| | - Necati Duru
- Department of Ophthalmology, The Kayseri City Hospital, Kayseri, Turkey
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Erel Ö, Erdoğan S. Thiol-disulfide homeostasis: an integrated approach with biochemical and clinical aspects. Turk J Med Sci 2020; 50:1728-1738. [PMID: 32233181 PMCID: PMC7672356 DOI: 10.3906/sag-2003-64] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 03/30/2020] [Indexed: 12/11/2022] Open
Abstract
Dynamic thiol-disulfide homeostasis (TDH) is a new area has begun to attract more scrutiny. Dynamic TDH is reversal of thiol oxidation in proteins and represents the status of thiols (-SH) and disulfides (-S-S-). Organic compounds containing the sulfhydryl group is called thiol, composed of sulfur and hydrogen atoms. Disulfides are the most important class of dynamic, redox responsive covalent bonds build in between two thiol groups. For many years, thiol levels were analyzed by several methods. During last years, measurements of disulfide levels have been analyzed by a novel automated method, developed by Erel and Neselioglu. In this method, addition to thiol (termed as native thiol) levels, disulfide levels were also measured and sum of native thiol and disulfide levels were termed as total thiol. Therefore, TDH was begun to be understood in organism. In healthy humans, TDH is maintained within a certain range. Dysregulated dynamic TDH has been implicated several disorders with unknown etiology. A growing body of evidence has demonstrated that the thiol-disulfide homeostasis is involved in variety diseases, such as diabetes mellitus, hypertension, nonsmall cell lung cancer, familial Mediterranean fever (FMF), inflammatory bowel diseases, occupational diseases, gestational diabetes mellitus and preeclampsia. These results may elucidate some pathogenic mechanism or may be a predictor indicating diagnostic clue, prognostic marker or therapeutic sign. In conclusion, protection of the thiol-disulfide homeostasis is of great importance for the human being. Evidence achieved so far has proposed that thiol-disulfide homeostasis is an important issue needs to elucidate wholly.
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Affiliation(s)
- Özcan Erel
- Department of Medical Biochemistry, Faculty of Medicine, Ankara Yıldırım Beyazıt Universty, Ankara , Turkey,Department of Medical Biochemistry, Ankara City Hospital , Ankara, Turkey
| | - Serpil Erdoğan
- Department of Medical Biochemistry, Faculty of Medicine, Ankara Yıldırım Beyazıt Universty, Ankara , Turkey
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Balbaba M, Ulaş F, Yıldırım H, Soydan A, Dal A, Aydın S. Thiol/disulfide homeostasis in patients with ocular-active and ocular-inactive Behçet disease. Int Ophthalmol 2020; 40:2643-2650. [PMID: 32488592 DOI: 10.1007/s10792-020-01445-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/23/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE To evaluate thiol/disulfide homeostasis in ocular-active (OA) and ocular-inactive (OI) Behçet disease (BD) patients and compare the data with healthy subjects. METHODS Twenty OABD patients, 20 OIBD patients and 20 healthy control subjects were included into the study. The BD ocular attack score 24 (BOS24) scoring system was used to assess the activity of disease in ocular BD patients. Systemic activity was also evaluated using BD current activity form (BDCAF). The native thiol (NT), total thiol (TT) and disulfide levels and NT/TT, disulfide/NT and disulfide/TT ratios were measured via using an innovative and automated method. RESULTS BOS24 and BDCAF scores were 13.25 ± 2.32 and 4.18 ± 2.06 in OABD patients and 0.31 ± 0.47 and 2.14 ± 1.98 in OIBD patients, respectively. The NT, TT levels and NT/TT ratio were significantly reduced; in contrast, the disulfide levels, disulfide/NT and disulfide/TT ratios were significantly increased in OABD and OIBD patients compared to the healthy control subjects (p < 0.05). Moreover, while the levels of NT and TT were significantly reduced, the disulfide levels as well as disulfide/NT and disulfide/TT ratios were significantly elevated between OABD and OIBD patients (p < 0.05). However, the ratio of NT/TT did not significantly differ between OABD and OIBD patients (p = 0.449). The multiple regression model including BOS24 and BDCAF score statistically significantly predicted NT level, TT level and disulfide level (p < 0.001 for all). CONCLUSION Thiol oxidation in BD patients resulted in a change of the thiol/disulfide balance. Therefore, thiol/disulfide homeostasis in BD patients can be used an innovative oxidative stress marker.
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Affiliation(s)
- Mehmet Balbaba
- Department of Ophthalmology, Faculty of Medicine, Fırat University, Elazig, Turkey.
| | - Fatih Ulaş
- Department of Ophthalmology, Faculty of Medicine, Abant Izzet Baysal University, Bolu, Turkey
| | - Hakan Yıldırım
- Department of Ophthalmology, Faculty of Medicine, Fırat University, Elazig, Turkey
| | - Adem Soydan
- Department of Ophthalmology, Faculty of Medicine, Abant Izzet Baysal University, Bolu, Turkey
| | - Ali Dal
- Department of Ophthalmology, Faculty of Medicine, Fırat University, Elazig, Turkey
| | - Süleyman Aydın
- Department of Biochemistry, Faculty of Medicine, Fırat University, Elazig, Turkey
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