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Mrugacz M, Pony-Uram M, Bryl A, Zorena K. Current Approach to the Pathogenesis of Diabetic Cataracts. Int J Mol Sci 2023; 24:ijms24076317. [PMID: 37047290 PMCID: PMC10094546 DOI: 10.3390/ijms24076317] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/13/2023] [Accepted: 03/25/2023] [Indexed: 03/30/2023] Open
Abstract
Cataracts remain the first or second leading cause of blindness in all world regions. In the diabetic population, cataracts not only have a 3–5 times higher incidence than in the healthy population but also affect people at a younger age. In patients with type 1 diabetes, cataracts occur on average 20 years earlier than in the non-diabetic population. In addition, the risk of developing cataracts increases with the duration of diabetes and poor metabolic control. A better understanding of the mechanisms leading to the formation of diabetic cataracts enables more effective treatment and a holistic approach to the patient.
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Ozkan D, Altan C, Er MO, Gultekin F, Kuraş S, Artunay O. The Role of Oxidative Status in the Pathogenesis of Primary Open-Angle Glaucoma, Pseudoexfolyation Syndrome and Glaucoma. Eur J Ophthalmol 2023; 33:352-360. [PMID: 35818741 DOI: 10.1177/11206721221113199] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
PURPOSE To investigate the role of oxidative stress and antioxidant system in the etiopathogenesis of pseudoexfoliation and progression of pseudoexfoliation syndrome to glaucoma. MATERIAL AND METHOD A total of 20 patients with pseudoexfoliation syndrome, 20 with pseudoexfoliation glaucoma, 20 with primary open-angle glaucoma, and 20 without pseudoexfoliation and glaucoma as a control group, who underwent cataract or glaucoma surgery between December 2020 and March 2021 in the Health Sciences University Beyoğlu Eye Training and Research Hospital, 80 patients were included in the study. Best corrected visual acuity (BCVA), intraocular pressure with applanation tonometry, detailed anterior and posterior segment examinations with biomicroscopy were performed in all patients included in the study. Approximately 0.1 cc of anterior chamber fluid was taken from all patients at the beginning of surgery. Total Oxidant Status (TOS) and Total Antioxidant Status (TAS) levels were measured by keeping the samples taken in the deep freezer of the cornea bank at -80 degrees, transferring them with cold chain transport rules, and examining them with automatic measurement method in the laboratories of the Medical Biochemistry Department of the University of Health Sciences. Oxidative Stress Index (OSI) value was calculated to measure the degree of oxidative stress. RESULTS TAS averages of the control and POAG groups were found to be statistically significantly higher than the PES and PEG groups (p = 0.0001, p = 0.0001). No significant difference was observed between the other groups (p > 0.05). The TOS averages of the control and POAG groups were found to be statistically significantly lower than the PES and PEG groups (p = 0.003, p = 0.0001; p = 0.01, p = 0.001), no statistically significant difference was observed between the other groups (p > 0.05). The OSI mean of the control and POAG groups was found to be statistically significantly lower than the PES and PEG groups (p = 0.001, p = 0.0001; p = 0.002, p = 0.0001), no statistically significant difference was observed between the other groups (p > 0.05). CONCLUSION Increased TOS and OSI and decreased TAS levels in the aqueous humour of patients with PES and PEG suggest that increased oxidative stress and decreased antioxidative defense system play a role in the etiopathogenesis of the disease.
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Affiliation(s)
- Derya Ozkan
- Istanbul Training and Research Hospital, 448249University of Health Sciences, Istanbul, Turkey
| | - Cigdem Altan
- Beyoglu Eye Training and Research Hospital, 448249University of Health Sciences, Istanbul, Turkey
| | - Mehmet Onur Er
- Istanbul Medeniyet University School of Medicine, Goztepe Training and Research Hospital, Istanbul, Turkey
| | - Fatih Gultekin
- Department of Medical Biochemistry, 448249University of Health Sciences, Istanbul, Turkey
| | - Sibel Kuraş
- Department of Medical Biochemistry, 448249University of Health Sciences, Istanbul, Turkey
| | - Ozgur Artunay
- Beyoglu Eye Training and Research Hospital, 448249University of Health Sciences, Istanbul, Turkey
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Natural aldose reductase inhibitors for treatment and prevention of diabetic cataract: A review. HERBA POLONICA 2022. [DOI: 10.2478/hepo-2022-0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Summary
Introduction: Aldose reductase (AR) is an enzyme that catalyzes the reduction of glucose to sorbitol responsible for the development of diabetic complications like cataracts. Medicinal plants contain several phytocompounds that can inhibit this enzyme.
Objective: The purpose of this review is to cite medicinal plants that have been tested for their ability to inhibit aldose reductase and consequently prevent cataracts and classify the major isolated compounds that have this activity.
Methods: We reviewed 154 articles published between 1954 and 2020 in English via three databases: ScienceDirect, Web of Science, and PubMed. We have classified the plants that showed a significant anti-cataract effect, in the form of a list including the scientific and family names of each plant. Also, we have cited the IC50 values and the active constituents of each plant that showed inhibitory activity towards AR.
Results: We have described 38 herbs belonging to 29 families. Besides, 47 isolated compounds obtained from the cited herbs have shown an AR inhibitory effect: luteolin, luteolin-7-O-β-D-glucopyranoside, apigenin, 3,5-di-O-caffeoyl-epi-quinic acid, delphinidin 3-O-β-galactopyranoside-3’-O-β-glucopyranoside, 3,5-di-O-caffeoylquinic acid methyl ester, andrographolide, 1,2,3,6-tetra-O-galloyl-β-D-glucose, 1,2,4,6-tetra-O-galloyl-β-D-glucose, 7-(3-hydroxypropyl)-3-methyl-8-β-O-D-glucoside-2H-chromen-2-one, E-4-(60-hydroxyhex-30-en-1-yl)phenyl propionate, delphinidin 3-O-β-galactopyranoside-3’,5’-di-O-β-glucopyranoside, 1,2,3-tri-O-galloyl-β-D-glucose, 1,2,3,4,6-penta-O-galloyl-β-D-glucose, 1,2,6-tri-O-galloyl-β-D-glucose, 2-(4-hydroxy-3-methoxyphenyl)ethanol, (4-hydroxy-3-methoxyphenyl)methanol, trans-anethole, gallic acid 4-O-β-D-(6’-O-galloyl)-glucoside, β-glucogallin, puerariafuran, quercetin, gallic acid 4-O-β-D-glucoside, 2,5-dihydroxybenzoic acid, 4-(4-hydroxy-3-methoxyphenyl)-2-butanone, protocatechuic acid, trans-cinnamic acid, gallic acid, p-coumaric acid and syringic acid.
Conclusion: natural therapy becomes an interesting alternative in the treatment and prevention of cataract by using medicinal plants rich in active compounds considered as AR inhibitors.
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Ruiss M, Kronschläger M, Schlatter A, Dechat T, Findl O. Comparison of methods to experimentally induce opacification and elasticity change in ex vivo porcine lenses. Sci Rep 2021; 11:23406. [PMID: 34862438 PMCID: PMC8642470 DOI: 10.1038/s41598-021-02851-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 11/22/2021] [Indexed: 11/17/2022] Open
Abstract
At the moment, cataract, which is the opacification of the eye's lens, can only be treated by surgery. In order to develop and test new pharmacological treatment strategies for the disease, there is a need for an appropriate in vitro model using ex vivo animal lenses. In this study, porcine lenses were incubated in either culture medium, glucose, triamcinolone acetonide, sodium chloride, hydrogen peroxide, sodium selenite, neutral buffered formalin, or were exposed to microwave heating to experimentally induce lens opacification. Changes in the lens morphology, weight, size, and elasticity were monitored 7 days after treatment. The fastest induction of dense opacification was seen in lenses exposed to sodium chloride, neutral buffered formalin, and microwave heating. No change in the size and weight of the lenses were detected, whereas loss in elasticity could be detected in lenses treated with formalin solution or microwave heating. Thus, neutral buffered formalin- and microwave-treated ex vivo porcine lenses seem to be a suitable model for mature cataracts, whereas hypertonic sodium chloride may be useful for studies on osmolarity-induced lens opacification.
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Affiliation(s)
- Manuel Ruiss
- Department of Ophthalmology, Hanusch Hospital, Vienna Institute for Research in Ocular Surgery (VIROS), a Karl Landsteiner Institute, Heinrich-Collin-Straße 30, 1140, Vienna, Austria
| | - Martin Kronschläger
- Department of Ophthalmology, Hanusch Hospital, Vienna Institute for Research in Ocular Surgery (VIROS), a Karl Landsteiner Institute, Heinrich-Collin-Straße 30, 1140, Vienna, Austria.
| | - Andreas Schlatter
- Department of Ophthalmology, Hanusch Hospital, Vienna Institute for Research in Ocular Surgery (VIROS), a Karl Landsteiner Institute, Heinrich-Collin-Straße 30, 1140, Vienna, Austria
| | - Thomas Dechat
- 1st Medical Department, Hanusch Hospital, Ludwig Boltzmann Institute of Osteology at Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1140, Vienna, Austria
| | - Oliver Findl
- Department of Ophthalmology, Hanusch Hospital, Vienna Institute for Research in Ocular Surgery (VIROS), a Karl Landsteiner Institute, Heinrich-Collin-Straße 30, 1140, Vienna, Austria
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Liu Y, Ding S, Luan Y, Zhu Z, Cai Y, Liu Y. Ginkgo biloba extracts inhibit post-ischemic LTP through attenuating EPSCs in rat hippocampus. Metab Brain Dis 2021; 36:2299-2311. [PMID: 34463942 DOI: 10.1007/s11011-021-00830-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/19/2021] [Indexed: 11/25/2022]
Abstract
Ginkgo biloba extract 761 (EGb761), a standardized extract from the Ginkgo biloba leaf, is purported to inhibit NMDA receptor-mediated neuronal excitotoxicity and protect neurons form ischemic injury. However, the specific signal pathway involved in the effects of EGb761 on synaptic plasticity is still in dispute. In this article, effects of EGb761 and its monomer component ginkgolide A (GA), ginkgolide B (GB), ginkgolide C (GC) and quercetin on rat hippocampal synaptic plasticity were studied. The evoked Excitatory postsynaptic currents (EPSCs) and miniature EPSCs were recorded on hippocampal slices from SD rats (14-21 days of age) by whole-cell patch-clamp recording and long-term potentiation (LTP) was induced by theta-burst stimulation. Acutely applied EGb761 inhibited the LTP, but bilaterally affect the evoked EPSCs. The evoked EPSCs were increased by incubation of lower concentration of EGb761, then the evoked EPSCs were decreased by incubation of higher concentration of EGb761. EGb761 monomer component GA, GB and GC could also inhibit the TBS-induced LTP and EPSC amplitude but not paired-pulse ratio (PPR). But quercetin, another monomer component of EGb761, led to increase in EPSC amplitude and decrease in PPR. Simultaneously, EGb761 and its monomer component ginkgolides inhibited the post-ischemic LTP (i-LTP) by inhibiting the EPSCs and the AMPA receptor subunit GluA1 expression on postsynaptic membrane. The results indicated that high concentration of EGb761 might inhibit LTP and i-LTP through inhibition effects of GA, GB and GC on AMPA receptors.
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Affiliation(s)
- Yong Liu
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry & Molecular Biology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, People's Republic of China.
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China.
- School of Innovation and Entrepreneurship, Hangzhou Medical College, Hangzhou, 310053, People's Republic of China.
| | - Supeng Ding
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry & Molecular Biology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, People's Republic of China
| | - Yifei Luan
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry & Molecular Biology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, People's Republic of China
- School of Innovation and Entrepreneurship, Hangzhou Medical College, Hangzhou, 310053, People's Republic of China
| | - Zhichao Zhu
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry & Molecular Biology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, People's Republic of China
| | - Yuting Cai
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry & Molecular Biology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, People's Republic of China
| | - Yingkui Liu
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry & Molecular Biology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, People's Republic of China
- School of Innovation and Entrepreneurship, Hangzhou Medical College, Hangzhou, 310053, People's Republic of China
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Sabaner MC, Dogan M, Altin SS, Balaman C, Yilmaz C, Omur A, Zeybek I, Palaz M. Ginkgo Biloba affects microvascular morphology: a prospective optical coherence tomography angiography pilot study. Int Ophthalmol 2021; 41:1053-1061. [PMID: 33392942 DOI: 10.1007/s10792-020-01663-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 11/27/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE To analyze the vascular morphology changes after consumption of Ginkgo biloba in healthy volunteers by optical coherence tomography angiography (OCTA). METHODS Sixty healthy volunteers without systemic and ocular disease were included in this prospective pilot study. After receiving the informed consent of the volunteers, Ginkgo biloba extract (120 mg oral capsule) was administered to sixty volunteers for 4 weeks, once a day in the morning. The main outcome measures were the difference between before and after four-week of consumption in best-corrected visual acuity (BCVA), retinal nerve fiber layer (RNFL) and subfoveal choroidal thickness (sfCT) with optical coherence tomography; whole, foveal, parafoveal and perifoveal regions' superior and deep macular vascular plexus vessel density, foveal avascular zone area (FAZ), FAZ perimeter (PERIM), vessel density in a 300 µm wide region around FAZ (FD-300), choroidal and outer retinal flow area, radial peripapillary capillary (RPC) vascular density of whole, inside the disc, peripapillary and four quadrants with OCTA. RESULTS The study group consisted of sixty eyes of 32 women and 28 men with a mean age of 20.57 ± 1.16 years. In post-consumption measurements, peripapillary and superior, inferior, temporal quadrant RPC vascular density (%) was statistically significantly higher than pre-consumption measurements (p 0.020, p 0.021, p 0.008 and p 0.014, respectively). No significant difference was observed for BCVA, sfCT, other macular or RPC vascular density and flow area OCTA parameters between measurements. CONCLUSION Four-week consumption of Ginkgo biloba leads to vascular morphological changes in RPC. Further clinical studies are needed to demonstrate its use and effects/benefits in glaucoma, optic neuropathy and other diseases affecting the optic nerve.
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Affiliation(s)
| | - Mustafa Dogan
- Faculty of Medicine, Department of Ophthalmology, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Salih Samed Altin
- Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Cemil Balaman
- Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Ceyda Yilmaz
- Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Aysegul Omur
- Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Irem Zeybek
- Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Muserref Palaz
- Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
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LncRNA KCNQ1OT1 knockdown inhibits viability, migration and epithelial-mesenchymal transition in human lens epithelial cells via miR-26a-5p/ITGAV/TGF-beta/Smad3 axis. Exp Eye Res 2020; 200:108251. [PMID: 32950535 DOI: 10.1016/j.exer.2020.108251] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Long noncoding RNA potassium voltage-gated channel subfamily Q member 1 opposite strand/antisense transcript 1 (KCNQ1OT1) takes part in diabetic cataract progression. This research aims to analyze the function and mechanism of KCNQ1OT1 on viability, migration and epithelial-mesenchymal transition (EMT) in lens epithelial cells. METHODS 20 diabetic cataract posterior lens capsule tissues and normal samples were collected. Lens epithelial cells (SRA01/04) were stimulated via high glucose (HG). The levels of KCNQ1OT1, miR-26a-5p, integrin αV (ITGAV), TGF-β, Smad3 and phosphorylated (p)-Smad3 were measured via quantitative real-time polymerase chain reaction or Western blot. Cell viability, migration and EMT were analyzed via MTT, wound healing, transwell and Western blot assays. The target relationship between miR-26a-5p and KCNQ1OT1 or ITGAV was determined via luciferase reporter assay. RESULTS KCNQ1OT1 was up-regulated and miR-26a-5p level was reduced in diabetic cataract tissues and HG-treated SRA01/04 cells. Silence of KCNQ1OT1 or miR-26a-5p up-regulation repressed cell viability, migration and EMT in SRA01/04 cells stimulated via HG. KCNQ1OT1 could target miR-26a-5p and controlled cell viability, migration and EMT via regulating miR-26a-5p. ITGAV was targeted via miR-26a-5p and positively regulated via KCNQ1OT1. ITGAV overexpression promoted cell viability, migration and EMT in HG-treated SRA01/04 cells, which were mitigated by KCNQ1OT1 silence. KCNQ1OT1 knockdown mitigated HG-induced the activation of TGF-β/Smad3 signaling by regulating miR-26a-5p. CONCLUSION KCNQ1OT1 knockdown represses cell viability, migration and EMT through miR-26a-5p/ITGAV/TGF-β/Smad3 axis in SRA01/04 cells under HG condition, providing a new target for the treatment of diabetic cataract.
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Li J, Ye W, Xu W, Chang T, Zhang L, Ma J, Pei R, He M, Zhou J. Activation of autophagy inhibits epithelial to mesenchymal transition process of human lens epithelial cells induced by high glucose conditions. Cell Signal 2020; 75:109768. [PMID: 32896607 DOI: 10.1016/j.cellsig.2020.109768] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/27/2020] [Accepted: 08/31/2020] [Indexed: 01/11/2023]
Abstract
Subcapsular cataracts are common phenotype of diabetic cataracts, and abnormal lens epithelial cells (LECs) under the lens capsules have been considered to involve in the pathogenesis. Our previous studies have shown that the epithelial to mesenchymal transition (EMT), which is responsible for the LECs to lose their original polarity and tight junctions, occurs in a diabetic cataract mouse model. Autophagy is known to function in the EMT process in multiple tissues. However, the relationship between autophagy and EMT process in LECs has not yet been fully demonstrated. We found that high glucose retreatment reducing expression level of E-cadherin, an epithelial marker, but increasing that of α-smooth muscle actin (α-SMA), a mesenchymal marker, by Western blot and immunoflurence staining assays, and increased the cell migration by Transwell assay in human lens epithelial cell line HLE-B3. High glucose retreatment also led to impairment of autophagy, representing by downregulation of Beclin, LC3II/LC3I, and reducing the number of autophagosomes. Activation of autophagy by rapamycin could prevent high glucose-induced EMT. In addition, the levels of p62 and Snail were increased in high glucose-treated HLE-B3 cells, and their interactions were demonstrated by co-immunoprecipitation and immunoflurence staining, but all these changes were attenuated by application of rapamycin. These findings delineated a novel autophagy-mediated mechanism, p62 might mediate Snail underlying high glucose-induced EMT in LECs, suggesting a potential therapeutic approach for diabetic cataract by regulating autophagy.
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Affiliation(s)
- Ji Li
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, The Fourth Military Medical University, No.127 Changle West Road, Xi'an, 710032, Shaanxi, PR China
| | - Wei Ye
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, The Fourth Military Medical University, No.127 Changle West Road, Xi'an, 710032, Shaanxi, PR China
| | - Wenqin Xu
- The Orbital Disease Institute of the Third Medical Center of PLA General Hospital, 69 Yongding Road, Haidian District, 100039, Beijing, PR China
| | - Tianfang Chang
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, The Fourth Military Medical University, No.127 Changle West Road, Xi'an, 710032, Shaanxi, PR China
| | - Luning Zhang
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, The Fourth Military Medical University, No.127 Changle West Road, Xi'an, 710032, Shaanxi, PR China
| | - Jiyuan Ma
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, The Fourth Military Medical University, No.127 Changle West Road, Xi'an, 710032, Shaanxi, PR China
| | - Rui Pei
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, The Fourth Military Medical University, No.127 Changle West Road, Xi'an, 710032, Shaanxi, PR China
| | - Mengmei He
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, The Fourth Military Medical University, No.127 Changle West Road, Xi'an, 710032, Shaanxi, PR China
| | - Jian Zhou
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, The Fourth Military Medical University, No.127 Changle West Road, Xi'an, 710032, Shaanxi, PR China.
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Song XL, Li MJ, Liu Q, Hu ZX, Xu ZY, Li JH, Zheng WL, Huang XM, Xiao F, Cui YH, Pan HW. Cyanidin-3- O-glucoside Protects Lens Epithelial Cells against High Glucose-Induced Apoptosis and Prevents Cataract Formation via Suppressing NF-κB Activation and Cox-2 Expression. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:8286-8294. [PMID: 32640796 DOI: 10.1021/acs.jafc.0c03194] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Diabetic cataract is one of the most important causes of blindness worldwide. Cyanidin-3-O-glucoside (C3G) is found to exert beneficial effects on many diabetic complications. However, its effect on diabetic cataract is not well known. Herein, we investigated the effect of C3G on high glucose-induced lens epithelial cell (SRA01/04) apoptosis and cataract formation as well as the involved mechanisms. We found C3G (20 μM) could preserve cell viability in SRA01/04 cells exposed to high glucose (100 μM). Meanwhile, C3G inhibited SRA01/04 cell apoptosis and regulated the Bcl-2/Bax ratio. Additionally, C3G suppressed NF-κB activation and subsequent cyclooxygenases-2 (Cox-2) expression, which are associated with the protection against apoptosis. Moreover, C3G attenuated lens opacity and protein aggregation in lens culture exposed to high glucose. In conclusion, C3G protected against high glucose-induced SRA01/04 cell apoptosis and cataract formation, which indicated the potential protection of anthocyanins on diabetic cataract.
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Affiliation(s)
- Xi-Ling Song
- Department of Public Health and Preventive Medicine, Jinan University, Guangzhou 510632, China
| | - Mei-Jun Li
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Qun Liu
- Department of Histology and Embryology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Zi-Xuan Hu
- Department of Public Health and Preventive Medicine, Jinan University, Guangzhou 510632, China
- West Campus, University of Chinese Acadamy of Sciences Shenzhen Hospital, Shenzhen 518107, China
| | - Zhi-Yi Xu
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Jia-Hui Li
- Department of Public Health and Preventive Medicine, Jinan University, Guangzhou 510632, China
| | - Wen-Lin Zheng
- Department of Public Health and Preventive Medicine, Jinan University, Guangzhou 510632, China
| | - Xiao-Mei Huang
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Fan Xiao
- Department of Public Health and Preventive Medicine, Jinan University, Guangzhou 510632, China
| | - Yu-Hong Cui
- Department of Histology and Embryology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
- Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 510260, China
| | - Hong-Wei Pan
- Department of Ophthalmology, the First Affiliated Hospital, Jinan University, Guangzhou 510632, China
- Institute of Ophthalmology, School of Medicine, Jinan University, 601 West Huangpu Avenue, Guangzhou 510632, China
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Lu J, Wang H, Zhang R, Wan Z, Gao H, Cai J, Cheng Y, Pu D, Lin T, Fan C, Sun Y. Effects of Photoperiod on Acetaminophen-Induced Hepatotoxicity in Mice. Dig Dis Sci 2020; 65:178-188. [PMID: 31376085 DOI: 10.1007/s10620-019-05749-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 07/19/2019] [Indexed: 12/09/2022]
Abstract
PURPOSE Acetaminophen (APAP) is a clinically popular analgesic and antipyretic drug, but excessive APAP can cause fatal hepatotoxicity. Many factors affect the degree of APAP-induced liver injury. This study aimed to investigate how circadian rhythm affects the development of APAP-induced hepatotoxicity and to clarify the roles of photoperiod and dietary rhythm on APAP-induced hepatotoxicity in mice. METHODS APAP-induced hepatotoxicity models were established by intraperitoneal injection of APAP (400 mg/kg) to mice. The mice were then divided into three treatment groups: normal diet, reversed diet, and reversed photoperiod. RESULTS More severe liver injury was observed at zeitgeber time 12 (ZT12) than at zeitgeber time 0 (ZT0) in all treatment groups, suggesting that photoperiod played a critical role in APAP-induced liver injury. We observed a change in the expression of the circadian gene Per2, which may be responsible for regulation of liver injury by photoperiod. Our results showed negligible change in Per2 expression with diet reversion, whereas Cry1, Cry2, and Dbp expressions were more highly affected by diet reversion than was Per2 expression. Downstream effects including liver enzyme expression, GSH level, and inflammation factors were also examined to identify the mechanism of liver injury. The results indicated that the circadian gene Per2 participated in APAP biometabolism by regulating the expression of Cyp2e1, which may explain the more severe hepatotoxicity at ZT12 than at ZT0. CONCLUSION APAP-induced hepatotoxicity can be mediated by photoperiod through the circadian gene Per2, suggesting that medicines containing APAP should be administered not only with food but also according to the appropriate photoperiod.
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Affiliation(s)
- Jihong Lu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Hu Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Rumeng Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Zhikang Wan
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Hang Gao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Jie Cai
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Yujia Cheng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Dong Pu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Tengfei Lin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Chenyu Fan
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Ying Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
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11
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Gu H, Xiong P, Tang H, Chen S, Long Y, Shi G. In vivo monitoring of cerebral glucose with an updated on-line electroanalytical system. Anal Bioanal Chem 2019; 411:5929-5935. [DOI: 10.1007/s00216-019-02002-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/05/2019] [Accepted: 06/26/2019] [Indexed: 01/05/2023]
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12
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Qi L, Zhou Y, Li W, Zheng M, Zhong R, Jin X, Lin Y. Effect of Moringa oleifera stem extract on hydrogen peroxide-induced opacity of cultured mouse lens. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:144. [PMID: 31226981 PMCID: PMC6588927 DOI: 10.1186/s12906-019-2555-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 06/10/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Moringa oleifera, also known as horseradish tree or drumstick tree, has strong antioxidant properties. In the present study, we investigated the potential effect of Moringa oleifera stem extract (MOSE) on cataract formation induced by oxidative stress in cultured mouse lenses. METHODS Mouse lenses cultured in vitro were pretreated with MOSE (0.5 and 1 mg/mL) for 24 h. Then, 1 mM hydrogen peroxide was added, and mouse lenses were cultured for a further 24 h. The medium was then changed to normal culture medium. After 48 h, lens opacification, reactive oxygen species (ROS) generation, reduced glutathione (GSH) content, and activities of superoxide dismutase (SOD) and catalase (CAT) were measured in lens tissues. In addition, the protein expression of peroxisome proliferator-activated receptor alpha (PPARα), a nuclear receptor with potential benefits to improve vision-threatening eye diseases, was assayed. RESULTS MOSE (1 mg/mL) alleviated lens opacification, reduced ROS generation, increased GSH content, and elevated SOD and CAT activities in cultured lenses. Moreover, MOSE upregulated the expressions of SOD, CAT, and PPARα. CONCLUSIONS This study showed that MOSE alleviates oxidative stress-induced cataract formation, and the mechanism of the effect is mainly related to its improvement of the endogenous antioxidant system in the lens.
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Affiliation(s)
- Lei Qi
- Department of Ophthalmology, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, 361005 People’s Republic of China
| | - Yu Zhou
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102 People’s Republic of China
| | - Weijie Li
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102 People’s Republic of China
| | - Mali Zheng
- Department of Ophthalmology, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, 361005 People’s Republic of China
| | - Ruisheng Zhong
- Department of Ophthalmology, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, 361005 People’s Republic of China
| | - Xin Jin
- Department of Basic Medical Science, School of Medicine, Xiamen University, Xiamen, 361102 People’s Republic of China
| | - Yuan Lin
- Department of Ophthalmology, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, 361005 People’s Republic of China
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13
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Tewari D, Samoilă O, Gocan D, Mocan A, Moldovan C, Devkota HP, Atanasov AG, Zengin G, Echeverría J, Vodnar D, Szabo B, Crişan G. Medicinal Plants and Natural Products Used in Cataract Management. Front Pharmacol 2019; 10:466. [PMID: 31263410 PMCID: PMC6585469 DOI: 10.3389/fphar.2019.00466] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 04/12/2019] [Indexed: 01/02/2023] Open
Abstract
Cataract is the leading reason of blindness worldwide and is defined by the presence of any lens opacities or loss of transparency. The most common symptoms of cataract are impaired vision, decreased contrast sensitivity, color disturbance, and glare. Oxidative stress is among the main mechanisms involved in the development of age-related cataract. Surgery through phacoemulsification and intraocular lens implantation is the most effective method for cataract treatment, however, there are chances of serious complications and irreversible loss of vision associated with the surgery. Natural compounds consisting of antioxidant or anti-inflammatory secondary metabolites can serve as potential leads for anticataract agents. In this review, we tried to document medicinal plants and plant-based natural products used for cataract treatment worldwide, which are gathered from available ethnopharmacological/ethnobotanical data. We have extensively explored a number of recognized databases like Scifinder, PubMed, Science Direct, Google Scholar, and Scopus by using keywords and phrases such as “cataract”, “blindness”, “traditional medicine”, “ethnopharmacology”, “ethnobotany”, “herbs”, “medicinal plants”, or other relevant terms, and summarized the plants/phytoconstituents that are evaluated in different models of cataract and also tabulated 44 plants that are traditionally used in cataract in various folklore medical practices. Moreover, we also categorized the plants according to scientific studies carried out in different cataract models with their mechanisms of action.
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Affiliation(s)
- Devesh Tewari
- Department of Pharmacognosy, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Ovidiu Samoilă
- Department of Ophthalmology, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Diana Gocan
- Department of Ophthalmology, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Andrei Mocan
- Department of Pharmaceutical Botany, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Cadmiel Moldovan
- Department of Pharmaceutical Botany, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Hari Prasad Devkota
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Atanas G Atanasov
- Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Jastrzębiec, Poland.,Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | - Gokhan Zengin
- Department of Biology, Faculty of Science, Selcuk University, Konya, Turkey
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Dan Vodnar
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Cluj-Napoca, Romania
| | - Bianca Szabo
- Department of Anatomy, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Gianina Crişan
- Department of Pharmaceutical Botany, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Han ZH, Wang F, Wang FL, Liu Q, Zhou J. Regulation of transforming growth factor β-mediated epithelial-mesenchymal transition of lens epithelial cells by c-Src kinase under high glucose conditions. Exp Ther Med 2018; 16:1520-1528. [PMID: 30116401 DOI: 10.3892/etm.2018.6348] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 02/22/2018] [Indexed: 02/06/2023] Open
Abstract
Recent studies have reported that high glucose (HG) conditions may contribute to the acceleration of renal cell apoptosis and renal fibrosis by inducing epithelial-mesenchymal transition (EMT) of tubular epithelial cells, in which c-Src kinase and transforming growth factor (TGF)-β are key modulators. In the present study, the roles of c-Src kinase and TGF-β in EMT of lens epithelial cells (LECs) under HG conditions were investigated. Results indicated human lens epithelial B3 (HLE-B3) cells under HG conditions exhibited significantly increased protein expression levels of phosphorylated c-Src (p-Src418) (P<0.05) and secreted a significantly increased amount of TGF-β compared with HLE-B3 cells under normal glucose conditions (P<0.05). Notably the c-Src inhibitor PP1 and the activin receptor-like kinase 5 (ALK5) inhibitor SB431542 suppressed EMT of HLE-B3 cells. Results indicated that PP1 significantly inhibited the activities of c-Src and ALK5 and the secretion of TGF-β, whereas SB431542 only significantly downregulated the protein expression levels and secretion of TGF-β (P<0.05). Following c-Src knockdown, the protein expression levels of p-Src418, ALK5 and TGF-β were significantly decreased, the secretion of TGF-β was significantly suppressed (both P<0.05) and EMT was decreased in HLE-B3 cells. These results suggest that c-Src and TGF-β may promote EMT of LECs under HG conditions, with c-Src as the upstream regulatory molecule. Thus, the signal axis of c-Src/TGF-β in EMT of LECs may be a potential novel therapeutic target for the prevention of diabetic subcapsular cataract.
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Affiliation(s)
- Zhi-Hua Han
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Fang Wang
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Fu-Lei Wang
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Qi Liu
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jian Zhou
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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15
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Du L, Hao M, Li C, Wu W, Wang W, Ma Z, Yang T, Zhang N, Isaac AT, Zhu X, Sun Y, Lu Q, Yin X. Quercetin inhibited epithelial mesenchymal transition in diabetic rats, high-glucose-cultured lens, and SRA01/04 cells through transforming growth factor-β2/phosphoinositide 3-kinase/Akt pathway. Mol Cell Endocrinol 2017; 452:44-56. [PMID: 28501572 DOI: 10.1016/j.mce.2017.05.011] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 05/09/2017] [Accepted: 05/09/2017] [Indexed: 01/16/2023]
Abstract
Diabetic cataract (DC), an identified life-threatening secondary complication of diabetes mellitus, has proven to be a dilemma because of its multifactorial caused and progression. An increasing number of studies have shown that in addition to the maillard reaction, enhanced polyol pathway, and oxidative insults, epithelial mesenchymal transition (EMT) is related to the prevalence of DC. Quercetin, a classic flavonoid with multiple pharmacological effects has been reported to possess therapeutic efficacy in the management and treatment of this disease. However, the mechanism underlying its therapeutic efficacy in EMT of lens epithelial cells (SRA01/04) and contribution to resolving DC remains a mystery. Therefore, in this study, we investigated the effects of quercetin on EMT of SRA01/04 and high-glucose (HG)-induced lens opacity accompanied by lens fibrosis induced by type-1 diabetes. Furthermore, we sought to clarify the specific mechanisms underlying these effects. At week 14 after streptozotocin (STZ) intraperitoneal administration, diabetic rats showed lens opacity accompanied with diminished antioxidant function, enhanced polyol pathway activity, and non-enzymatic glycation. Western blotting confirmed EMT in rat SRA01/04 cells with significantly increased α-smooth muscle actin (α-SMA) and decreased E-cadherin expressions. Treatment of the lens with quercetin ameliorated the oxidative stress, inhibited aldose reductase (AR) activation, reduced advanced glycation end product (AGE) production, and finally suppressed EMT in the early stages. Our in vitro results showed that high-glucose activated the transforming growth factor-β2/phosphoinositide 3-kinase/protein kinase B (TGF-β2/PI3K/Akt) signalling and EMT in SRA01/04 cells. Further, induced oxidative stress, activation of aldose reductase, and accumulation of advanced glycation end products were also involved in this process. Quercetin was potent enough to effectively ameliorate the high glucose (HG)-induced EMT of SRA01/04 cells by inhibiting the activation of TGF-β2/PI3K/Akt, enhancing the antioxidant capacity, inhibiting AR activity, and reducing AGE production. From the whole animal to tissues, and finally the cellular level, our results provide considerable evidence of the therapeutic potential of quercetin for DC. This might be due to its inhibition of EMT mediated through inhibition of the TGF-β/PI3K/Akt pathway.
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Affiliation(s)
- Lei Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Meng Hao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Chengcheng Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Wenya Wu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Wenwen Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Zhongxuan Ma
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Tingting Yang
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, China
| | - Nan Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Adelusi Temitope Isaac
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Xia Zhu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Ying Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Qian Lu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China.
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China.
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16
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Yun KL, Wang ZY. Target/signalling pathways of natural plant-derived radioprotective agents from treatment to potential candidates: A reverse thought on anti-tumour drugs. Biomed Pharmacother 2017; 91:1122-1151. [DOI: 10.1016/j.biopha.2017.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 04/15/2017] [Accepted: 05/01/2017] [Indexed: 02/07/2023] Open
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17
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Ergan E, Ozturk F, Beyazyildiz E, Elgin U, Sen E, Cankaya AB, Celik T. Oxidant/antioxidant balance in the aqueous humor of patients with glaucoma. Int J Ophthalmol 2016; 9:249-52. [PMID: 26949644 DOI: 10.18240/ijo.2016.02.12] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 02/17/2015] [Indexed: 02/08/2023] Open
Abstract
AIM To evaluate total antioxidant status (TAS), total oxidant status (TOS), and the oxidative stress index (OSI) of the aqueous humor (AH) in patients with glaucoma. METHODS The prospective study was composed of a study group (n=31) and a control group (n=31). Fifteen patients in the study group were diagnosed with primary open angle glaucoma (POAG), and 16 patients were diagnosed with pseudoexfoliation glaucoma (PEG). The control group was composed of non-glaucomatous patients with cataracts. AH samples were collected and analyzed for TAS, TOS, and OSI levels. RESULTS Mean AH TAS level was significantly higher in patients with glaucoma than that in the control group (P<0.01). Mean TOS and OSI levels tended to increase in patients with glaucoma. No significant differences in TAS, TOS, or OSI levels were observed between patients with POAG and PEG. CONCLUSION High levels of TAS were observed in patients with glaucoma, which was likely a response to the increased oxidative stress observed in these patients.
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Affiliation(s)
- Esra Ergan
- Department of Ophthalmology, Amasya University, Sabuncuoglu Serefeddin Research and Training Hospital, Amasya 05200, Turkey
| | - Faruk Ozturk
- Department of Ophthalmology, Hacettepe University, Ankara 06230, Turkey
| | - Emrullah Beyazyildiz
- Department of Ophthalmology, Samsun Research and Training Hospital, Samsun 55100, Turkey
| | - Ufuk Elgin
- Department of Opthalmology, Ulucanlar Eye Research Hospital, Ankara 06240, Turkey
| | - Emine Sen
- Department of Opthalmology, Ulucanlar Eye Research Hospital, Ankara 06240, Turkey
| | - Ali Bulent Cankaya
- Department of Opthalmology, Ulucanlar Eye Research Hospital, Ankara 06240, Turkey
| | - Tugrul Celik
- Department of Biochemistry, Turgut Ozal University, Ankara 06010, Turkey
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18
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Wang C, Wang B. Ginkgo Biloba Extract Attenuates Oxidative Stress and Apoptosis in Mouse Cochlear Neural Stem Cells. Phytother Res 2016; 30:774-80. [PMID: 26799058 DOI: 10.1002/ptr.5572] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 12/16/2015] [Accepted: 12/18/2015] [Indexed: 01/23/2023]
Abstract
In the organ or Corti, oxidative stress could result in damage to the hearing, and neural stem cells (NSCs) hold great therapeutic potential in treating hearing loss. Ginkgo biloba extract (GBE) has been widely shown to exhibit anti-oxidative and anti-apoptotic effects in treatments of neural damage and disorder. Using hydrogen peroxide to induced oxidative stress as a model, we investigated the anti-oxidative role of GBE in isolated mouse cochlear NSCs. GBE treatment was found to significantly promote viability of NSCs, by markedly attenuating hydrogen peroxide induced oxidative stress. In addition, this anti-oxidative function of GBE was also able to prevent mitochondrial depolarization and subsequent apoptosis. Moreover, the anti-apoptotic role of GBE was mediated by antagonizing the intrinsic mitochondrial apoptotic pathway, where GBE could reverse the changes in key intrinsic apoptosis pathway factors including Bcl-2, Bax, and Caspase-3. Our data provided the first report on the beneficial role of GBE in protecting cochlear NSCs, by attenuating oxidative stress triggered intrinsic apoptosis, therefore supporting the potential therapeutic value of GBE in preventing oxidative stress-related hearing loss. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Congpin Wang
- Department of Pharmacy, Eye and ENT Hospital of Fudan University, 83 Fenyang Road, Shanghai, 200031, China
| | - Bin Wang
- Department of Pharmacy, Eye and ENT Hospital of Fudan University, 83 Fenyang Road, Shanghai, 200031, China
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19
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Fang L, Neutzner A, Turtschi S, Flammer J, Mozaffarieh M. The effect of Ginkgo biloba and Nifedipine on DNA breaks in circulating leukocytes of glaucoma patients. EXPERT REVIEW OF OPHTHALMOLOGY 2015. [DOI: 10.1586/17469899.2015.1043994] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Esin RG, Naprienko MV, Mukhametova ER, Khairullin IK, Esin OR. [Tanakan as a multimodal cytoprotective factor in general medicine (part II)]. Zh Nevrol Psikhiatr Im S S Korsakova 2015; 115:177-182. [PMID: 26978514 DOI: 10.17116/jnevro2015115112177-182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The second section of the review provides an update of the data on mechanisms of action of a standardized extract of Ginkgo biloba EGb761® (tanakan) and its efficacy in treatment of depression, pain, complications of diabetes, Parkinson disease, tinnitus and dizziness, reproductive dysfunction. Updated data enable to use EGb761® (tanakan) as a highly-effective cytoprotective agent in treatment of cardiovascular, degenerative and metabolic diseases of the nervous system, inner ear disturbances (tinnitus), dysfunction of reproductive system as well as in prevention and treatment of stress-induced disorders.
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Affiliation(s)
- R G Esin
- Kazan State Medical Academy, Kazan; Kazan Federal University, Kazan
| | - M V Naprienko
- Sechenov First Moscow State Medical University, Moscow
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