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Kang WS, Choi H, Lee KH, Kim E, Kim KJ, Kim JS, Na CS, Kim S. Peucedanum japonicum Thunberg and Its Active Components Mitigate Oxidative Stress, Inflammation and Apoptosis after Urban Particulate Matter-Induced Ocular Surface Damage. Antioxidants (Basel) 2021; 10:1717. [PMID: 34829588 PMCID: PMC8614870 DOI: 10.3390/antiox10111717] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
We previously demonstrated that urban particulate matter (UPM) exposure decreases the migration activity and survival of human corneal epithelial cells (HCECs). Herein, we investigated the potential to improve the corneal wound-healing ability of Peucedanum japonicum Thunb. leaf extract (PJE) and its active components on UPM-induced ocular surface damage in vitro and in vivo. PJE effectively assisted wound healing without altering HCEC survival and enhanced catalase (CAT), heme oxygenase 1 (HO1) and glutathione peroxidase 1 (GPX1) antioxidant gene expression. A corneal wound was uniformly induced on the right eye in all experimental animals and divided into eight groups such as two control groups (wounded right eye group-NR and non-wounded left eye group-NL), UPM treated group and PJEs (25, 50, 100, 200, 400 mg/kg) treated groups. Corneal abrasion model rats exposed to UPM showed delayed wound healing compared to unexposed rats, but wound healing was dose-dependently enhanced by PJE oral administration. Seventy-two hours after wound generation, inflammatory cells, apoptotic cells and interleukin-6 (IL-6) expression were increased substantially after UPM exposure, but PJE treatment significantly reduced the wound to an almost normal level while enhancing re-epithelialization without changing corneal thickness. Next, we tried to identify the key molecules for enhancing wound healing through fractionation. The major compounds in the fraction, confirmed by high-performance liquid chromatography (HPLC), were chlorogenic acid (CA), neochlorogenic acid (NCA) and cryptochlorogenic acid (CCA). Each type of CA isomers showed slightly different half maximal effective (EC50) and maximal effective (ECmax) concentrations, and their mixtures synergistically enhanced HCEC migration. Thus, corneal abrasion wound recovery after UPM exposure improved after PJE treatment, and the active PJE components were identified, providing an important basis to develop therapeutics for ocular surface damage using PJE.
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Affiliation(s)
- Wan Seok Kang
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Hakjoon Choi
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Ki Hoon Lee
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Eun Kim
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Kyeong Jo Kim
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Jin Seok Kim
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Chang-Su Na
- College of Korean Medicine, Dongshin University, Naju-si 58245, Korea;
| | - Sunoh Kim
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
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Ju B, Guo O, Benissan-Messan DZ, Shawver MH, Chen P, Geng B, Wei S, Yaron JR, Lucas AR, Zhu H. Serp-1 Promotes Corneal Wound Healing by Facilitating Re-epithelialization and Inhibiting Fibrosis and Angiogenesis. Front Cardiovasc Med 2021; 8:649124. [PMID: 34164439 PMCID: PMC8216079 DOI: 10.3389/fcvm.2021.649124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 04/28/2021] [Indexed: 11/21/2022] Open
Abstract
Purpose: Chemical corneal injuries carry a high morbidity and commonly lead to visual impairment. Here, we investigate the role of Serp-1, a serine protease inhibitor, in corneal wound healing. Methods: An alkaline-induced corneal injury was induced in 14 mice. Following injury, five mice received daily topical saline application while nine mice received Serp-1 100 μL topically combined with a daily subcutaneous injection of 100 ng/gram body weight of Serp-1. Corneal damage was monitored daily through fluorescein staining and imaging. Cross sectional corneal H&E staining were obtained. CD31 was used as marker for neovascularization. Results: Serp-1 facilitates corneal wound healing by reducing fibrosis and neovascularization while mitigating inflammatory cell infiltration with no noticeable harm related to its application. Conclusions: Serp-1 effectively mitigates inflammation, decreases fibrosis, and reduce neovascularization in a murine model of corneal injury without affecting other organs. Translational Relavence: Our study provides preclinical data for topical application of Serp-1 to treat corneal wounds.
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Affiliation(s)
- Brent Ju
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Owen Guo
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Dathe Z Benissan-Messan
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - McKinley H Shawver
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Peng Chen
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Bingchuan Geng
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Siqi Wei
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Jordan R Yaron
- Center for Personalized Diagnostics and Center for Immunotherapy, Vaccines and Virotherapy, Tempe, AZ, United States
| | - Alexandra R Lucas
- Center for Personalized Diagnostics and Center for Immunotherapy, Vaccines and Virotherapy, Tempe, AZ, United States
| | - Hua Zhu
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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Omotoye OJ, Ajayi IA, Ajite KO, Bodunde OF. Factors Responsible for Poor Visual Outcome Following Emergency Eye Surgery in a Tertiary Eye Centre. Ethiop J Health Sci 2019; 29:631-638. [PMID: 31666785 PMCID: PMC6813275 DOI: 10.4314/ejhs.v29i5.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background Ocular emergencies can cause permanent vision loss if they are not recognized and treated promptly. This study was carried out to identify the factors responsible for poor visual outcome following emergency eye surgeries. Methods A cross-sectional study was carried out on all patients who had surgical emergency eye procedures. Clinic and theatre records of all eligible patients were retrieved. Demographic characteristics, duration of symptoms, laterality, presenting visual acuity, documentary pictures, classfication of eye injury, duration of days before surgery, surgical procedures performed and six weeks post-operative visual acuity were obtained from the records. Data were analyzed using Statistical Package for Social Sciences, version 25. Results One hundred and ninety-four patients had emergency eye surgical procedures constituting 16.3% of all ocular emergencies. There were 145(74.7%) males and 49 (25.3%) females with a male-to-female ratio of 3:1. The proportion of students, 48(67.6%), that presented within 24 hours of injury was the highest while the civil servants, 8(17.8%), had the lowest proportion. Corneo-scleral repair topped the list of surgeries and was the commonest, 106(54.6%), procedure carried out the same day of presentation. A 3rd of the patients, 28(34.1%), who presented within 24 hours had normal vision 6 weeks post-operatively while over 4/5th of the patients who presented after 24 hours were blind six weeks post-operatively. Conclusion The prevalence of eye emergency surgical procedures was high with over 4/5th of these patients becoming blind six weeks post-operatively. Some of the factors responsible for poor visual outcome were delayed presentation, pre-operative visual acuity and delayed surgical intervention.
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Affiliation(s)
- Olusola J Omotoye
- Department of Ophthalmology, Ekiti State University Teaching Hospital Ado Ekiti Nigeria
| | - Iyiade A Ajayi
- Department of Ophthalmology, Ekiti State University Teaching Hospital Ado Ekiti Nigeria
| | - Kayode O Ajite
- Department of Ophthalmology, Ekiti State University Teaching Hospital Ado Ekiti Nigeria
| | - Olanike F Bodunde
- Department of Ophthalmology, Ekiti State University Teaching Hospital Ado Ekiti Nigeria
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The mouse autonomic nervous system modulates inflammation and epithelial renewal after corneal abrasion through the activation of distinct local macrophages. Mucosal Immunol 2018; 11:1496-1511. [PMID: 29988115 DOI: 10.1038/s41385-018-0031-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 04/02/2018] [Accepted: 04/05/2018] [Indexed: 02/04/2023]
Abstract
Inflammation and reepithelialization after corneal abrasion are critical for the rapid restoration of vision and the prevention of microbial infections. However, the endogenous regulatory mechanisms are not completely understood. Here we report that the manipulation of autonomic nervous system (ANS) regulates the inflammation and healing processes. The activation of sympathetic nerves inhibited reepithelialization after corneal abrasion but increased the influx of neutrophils and the release of inflammatory cytokines. Conversely, the activation of parasympathetic nerves promoted reepithelialization and inhibited the influx of neutrophils and the release of inflammatory cytokines. Furthermore, we observed that CD64+CCR2+ macrophages in the cornea preferentially expressed the β-2 adrenergic receptor (AR), whereas CD64+CCR2- macrophages preferentially expressed the α-7 nicotinic acetylcholine receptor (α7nAChR). After abrasion, the topical administration of a β2AR agonist further enhanced the expression of the proinflammatory genes in the CD64+CCR2+ cell subset sorted from injured corneas. In contrast, the topical administration of an α7nAChR agonist further enhanced the expression of the anti-inflammatory genes in the CD64+CCR2- subset. Thus crosstalk between the ANS and local macrophage populations is necessary for the progress of corneal wound repair. Manipulation of ANS inputs to the wounded cornea may represent an alternative approach to the treatment of impaired wound healing.
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Chen SC, Telinius N, Lin HT, Huang MC, Lin CC, Chou CH, Hjortdal J. Use of Fish Scale-Derived BioCornea to Seal Full-Thickness Corneal Perforations in Pig Models. PLoS One 2015; 10:e0143511. [PMID: 26599018 PMCID: PMC4657996 DOI: 10.1371/journal.pone.0143511] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 11/05/2015] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to test the use of BioCornea, a fish scale-derived collagen matrix for sealing full-thickness corneal perforations in mini-pigs. Two series of experiments were carried out in 8 Lan-Yu and 3 Göttingen mini-pigs, respectively. A 2mm central full thickness corneal perforation was made with surgical scissors and 2mm trephines. The perforations were sealed immediately by suturing BioCornea to the wounded cornea. The conditions of each patched cornea were followed-up daily for 3 or 4 days. Status of operated eyes was assessed with slit lamp examination or optical coherence tomography (OCT). Animals were sacrificed after the study period and the corneas operated were fixated for histological examination. Both OCT imaging and handheld slit lamp observations indicated that a stable ocular integrity of the perforated corneas was maintained, showing no leakage of aqueous humor, normal depth of anterior chamber and only mild swelling of the wounded cornea. Hematoxylin and eosin staining of the patched cornea showed no epithelial ingrowths to the perforated wounds and no severe leucocyte infiltration of the stroma. The fish scale-derived BioCornea is capable to seal full-thickness corneal perforation and stabilize the integrity of ocular anterior chamber in pre-clinic mini-pig models. BioCornea seems to be a safe and effective alternative for emergency treatment of corneal perforations.
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Affiliation(s)
| | - Niklas Telinius
- Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
| | | | | | | | | | - Jesper Hjortdal
- Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
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Abstract
A 5-year-old boy presented with right eye pain associated with tearing and photophobia of 1-day duration. He gave a history of playing with a river crab when suddenly the crab clamped his fingers. He attempted to fling the crab off, but the crab flew and hit his right eye. Ocular examination revealed a right eye corneal ulcer with clumps of fibrin located beneath the corneal ulcer and 1.6 mm level of hypopyon. At presentation, the Seidel test was negative, with a deep anterior chamber. Culture from the corneal scrapping specimen grew Citrobacter diversus and Proteus vulgaris, and the boy was treated with topical gentamicin and ceftazidime eyedrops. Fibrin clumps beneath the corneal ulcer subsequently dislodged, and revealed a full-thickness corneal laceration wound with a positive Seidel test and shallow anterior chamber. The patient underwent emergency corneal toileting and suturing. Postoperatively, he was treated with oral ciprofloxacin 250 mg 12-hourly for 1 week, topical gentamicin, ceftazidime, and dexamethasone eyedrops for 4 weeks. Right eye vision improved to 6/9 and 6/6 with pinhole at the 2-week follow-up following corneal suture removal.
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Affiliation(s)
- Naidu Vinuthinee
- Department of Ophthalmology, Hospital Sultanah Bahiyah, Alor Setar, Malaysia ; Department of Ophthalmology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Anuar Azreen-Redzal
- Department of Ophthalmology, Hospital Sultanah Bahiyah, Alor Setar, Malaysia
| | - Jaafar Juanarita
- Department of Ophthalmology, Hospital Sultanah Bahiyah, Alor Setar, Malaysia
| | - Embong Zunaina
- Department of Ophthalmology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
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Abstract
Corneal abrasions result from a superficial lesion to the most anterior aspect of the eye, the corneal epithelium. Patients can present to the GP with an array of symptoms including pain, foreign body sensation, decreased visual acuity/blurring, epiphora (excess watering) and photophobia. Most corneal abrasions are self-limiting and appropriate management can be instituted in the GP surgery. However, some require referral for specialist ophthalmology assessment. This article looks at the assessment and management of corneal abrasions and provides evidence-based guidance for ophthalmology referral.
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Affiliation(s)
- Syed M Shahid
- Foundation Year 2 Trainee, University Hospital Lewisham
| | - Nigel Harrison
- Consultant Emergency Medicine, University Hospital Lewisham
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Contact Lens Complications in an Urgent-Care Population: The University of California, Los Angeles, Contact Lens Study. Eye Contact Lens 2012; 38:49-52. [DOI: 10.1097/icl.0b013e31823ff20e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Macsai MS. Surgical Management and Rehabilitation of Anterior Segment Trauma. Cornea 2011. [DOI: 10.1016/b978-0-323-06387-6.00154-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Meek R, Sullivan A, Favilla M, Larmour I, Guastalegname S. Is Homatropine 5% effective in reducing pain associated with corneal abrasion when compared with placebo? A randomized controlled trial. Emerg Med Australas 2010; 22:507-13. [DOI: 10.1111/j.1742-6723.2010.01346.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mahmoud SS, Gehman JD, Azzopardi K, Robins-Browne RM, Separovic F. Liposomal Phospholipid Preparations of Chloramphenicol for Ophthalmic Applications. J Pharm Sci 2008; 97:2691-701. [DOI: 10.1002/jps.21201] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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