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Luebke J. Individualized Treatment for Glaucoma Patients with Diabetes mellitus. Klin Monbl Augenheilkd 2023; 240:142-146. [PMID: 36634690 DOI: 10.1055/a-1961-7186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Glaucoma and diabetes mellitus are two common chronic diseases in Europe and worldwide which require intensive therapy. Various pathophysiological mechanisms have been discussed which favour the development of glaucoma, especially in the presence of diabetes mellitus. Medicinal and surgical adjustment of intraocular pressure is associated with some limitations in patients with diabetes mellitus, for example, filtering interventions show lower success rates than in non-diabetic glaucoma patients. Besides pure ophthalmological endocrinological therapy, the psychological burden of two chronic diseases should also be considered and included in the individual therapy plan.
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Affiliation(s)
- Jan Luebke
- Klinik für Augenheilkunde, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg, Deutschland
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Li Y, Mitchell W, Elze T, Zebardast N. Association Between Diabetes, Diabetic Retinopathy, and Glaucoma. Curr Diab Rep 2021; 21:38. [PMID: 34495413 DOI: 10.1007/s11892-021-01404-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/19/2021] [Indexed: 12/28/2022]
Abstract
PURPOSE OF REVIEW The strength of the relationship between diabetes, diabetic retinopathy (DR), and glaucoma remains controversial. We review evidence supporting and refuting this association and explore mechanistic pathological and treatment relationships linking these diseases. RECENT FINDINGS While studies have shown diabetes/DR may increase the risk for glaucoma, this remains inconsistently demonstrated. Diabetes/DR may contribute toward glaucomatous optic neuropathy indirectly (either by increasing intraocular pressure or vasculopathy) or through direct damage to the optic nerve. However, certain elements of diabetes may slow glaucoma progression, and diabetic treatment may concurrently be beneficial in glaucoma management. Diabetes plays a significant role in poor outcomes after glaucoma surgery. While the relationship between diabetes/DR and glaucoma remains controversial, multiple mechanistic links connecting pathophysiology and management of diabetes, DR, and glaucoma have been made. However, a deeper understanding of the causes of disease association is needed.
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Affiliation(s)
- Yangjiani Li
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, Guangdong, 510060, China
| | - William Mitchell
- Department of Ophthalmology, Massachusetts Eye and Ear, 243 Charles Street, Boston, MA, 02114, USA
- Department of Ophthalmology, Royal Victorian Eye and Ear, Melbourne, VIC, 3002, Australia
| | - Tobias Elze
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
| | - Nazlee Zebardast
- Department of Ophthalmology, Massachusetts Eye and Ear, 243 Charles Street, Boston, MA, 02114, USA.
- Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA.
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Diabetic retinopathy and diabetic macular oedema pathways and management: UK Consensus Working Group. Eye (Lond) 2021; 34:1-51. [PMID: 32504038 DOI: 10.1038/s41433-020-0961-6] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The management of diabetic retinopathy (DR) has evolved considerably over the past decade, with the availability of new technologies (diagnostic and therapeutic). As such, the existing Royal College of Ophthalmologists DR Guidelines (2013) are outdated, and to the best of our knowledge are not under revision at present. Furthermore, there are no other UK guidelines covering all available treatments, and there seems to be significant variation around the UK in the management of diabetic macular oedema (DMO). This manuscript provides a summary of reviews the pathogenesis of DR and DMO, including role of vascular endothelial growth factor (VEGF) and non-VEGF cytokines, clinical grading/classification of DMO vis a vis current terminology (of centre-involving [CI-DMO], or non-centre involving [nCI-DMO], systemic risks and their management). The excellent UK DR Screening (DRS) service has continued to evolve and remains world-leading. However, challenges remain, as there are significant variations in equipment used, and reproducible standards of DMO screening nationally. The interphase between DRS and the hospital eye service can only be strengthened with further improvements. The role of modern technology including optical coherence tomography (OCT) and wide-field imaging, and working practices including virtual clinics and their potential in increasing clinic capacity and improving patient experiences and outcomes are discussed. Similarly, potential roles of home monitoring in diabetic eyes in the future are explored. The role of pharmacological (intravitreal injections [IVT] of anti-VEGFs and steroids) and laser therapies are summarised. Generally, IVT anti-VEGF are offered as first line pharmacologic therapy. As requirements of diabetic patients in particular patient groups may vary, including pregnant women, children, and persons with learning difficulties, it is important that DR management is personalised in such particular patient groups. First choice therapy needs to be individualised in these cases and may be intravitreal steroids rather than the standard choice of anti-VEGF agents. Some of these, but not all, are discussed in this document.
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An R, Zhang Y, Qiao Y, Song L, Wang H, Dong X. Adipose stem cells isolated from diabetic mice improve cutaneous wound healing in streptozotocin-induced diabetic mice. Stem Cell Res Ther 2020; 11:120. [PMID: 32183899 PMCID: PMC7079496 DOI: 10.1186/s13287-020-01621-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 02/01/2020] [Accepted: 02/25/2020] [Indexed: 12/20/2022] Open
Abstract
Background Adipose-derived mesenchymal stem cells (ASCs) therapy is emerging as a novel therapeutic option for the treatment of a variety of diseases including diabetes and diabetic wound healing. Multiple studies indicate that ASCs could promote wound healing and reverse diabetes. However, whether ASCs from diabetic donors retain their therapeutic functions and the mechanisms of how ASCs contribute to wound healing remain largely unknown. In this study, we explored the cutaneous wound healing ability of ASCs collected from C57BL/6 mice that had been rendered diabetic with streptozotocin (STZ). Methods ASCs were harvested from adipose tissues of type 1 diabetic (T1D) or normal C57BL/6 mice. Cell phenotypes were evaluated by flow cytometry analysis, and cell differentiation into adipocytes, chondrocytes, and osteocytes was compared. Secretions of transforming growth factor β (TGF-β1), basic fibroblast growth factor (bFGF), and vascular endothelial growth factor (VEGF) by ASCs were assessed by ELISA. Migration and proliferation of fibroblasts co-cultured with T1D ASCs or control ASCs were also compared. The therapeutic effects of T1D and control ASCs in promoting wound closure were measured in vivo in a T1D wound mouse model. Granulation tissues were collected and stained with H&E at 14th day. CD34 and collagen I were detected by immunohistochemistry. Expressions of IL-6, α-SMA, CD31, collagen I, and collagen III were quantified by real-time PCR. GFP-expressing ASCs were used to trace in vivo cell differentiation. Results T1D ASCs and control ASCs showed similar expression of cell surface markers (CD29, CD34, CD105) and proliferation pattern. They can both differentiate into different cell types. T1D ASCs secreted similar amounts of VEGF and bFGF, but less TGF-β compared with control ASCs. Like control ASCs, T1D ASCs promoted the proliferation and migration of skin fibroblast cells. When injected in cutaneous wound of T1D mice, T1D ASCs increased wound closure and hair follicle regeneration at a comparable extent as ASCs. Mice receiving T1D ASCs or ASCs exhibited significantly higher expressions of collagen I, collagen III, and CD31 and reduced expression of IL-6 in wound tissues. Immunohistochemistry staining showed increased angiogenesis in mice receiving ASCs as was evident by increased CD34+ cells and collagen I staining. GFP+ ASCs injection showed that ASCs differentiated into fibroblasts and endothelial cells in vivo. Conclusions Our results suggest that T1D ASCs could accelerate cutaneous wound healing. Mechanisms may include increasing fibroblast growth and migration, skin angiogenesis, and differentiation into fibroblasts and endothelial cells. This study provides evidence that diabetic ASCs may be used as a therapeutic option in cutaneous wound healing in diabetic recipients.
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Affiliation(s)
- Ran An
- College of Life Science, Qingdao Agricultural University, No. 700, Changcheng Road, Chengyang District, Qingdao, 266109, Shandong, People's Republic of China
| | - Yong Zhang
- College of Life Science, Qingdao Agricultural University, No. 700, Changcheng Road, Chengyang District, Qingdao, 266109, Shandong, People's Republic of China
| | - Yu Qiao
- College of Life Science, Qingdao Agricultural University, No. 700, Changcheng Road, Chengyang District, Qingdao, 266109, Shandong, People's Republic of China
| | - Lili Song
- College of Life Science, Qingdao Agricultural University, No. 700, Changcheng Road, Chengyang District, Qingdao, 266109, Shandong, People's Republic of China
| | - Hongjun Wang
- Department of Surgery, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Xiao Dong
- College of Life Science, Qingdao Agricultural University, No. 700, Changcheng Road, Chengyang District, Qingdao, 266109, Shandong, People's Republic of China.
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Interleukin 6 Function in the Skin and Isolated Keratinocytes Is Modulated by Hyperglycemia. J Immunol Res 2019; 2019:5087847. [PMID: 31073533 PMCID: PMC6470420 DOI: 10.1155/2019/5087847] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 02/14/2019] [Indexed: 12/30/2022] Open
Abstract
Diabetes currently affects over twenty-five million Americans. Annual health care cost of diabetes exceeds $254 billion and is associated with a distinct set of diabetic complications that include delayed wound healing and diabetic ulcers. Interleukin 6 (IL-6) plays an important role in wound healing and is known to be elevated in the serum of both type I and type II diabetes patients. This study assesses the expression and function of IL-6 in the hyperglycemic epidermis and keratinocyte culture. Streptozotocin-treated mice were wounded six weeks after induction of hyperglycemia. Wound closure, protein, and mRNA expression were assessed up to 13 days of postwounding. Wound closure was delayed 4-5 days in hyperglycemic animals. Hyperglycemic wounds displayed greater IL-6 and IL-6Rα protein expression at 1, 7, and 10 days of postwounding compared to euglycemic control. However, IL-6Rα mRNA expression was reduced at all time points beyond day 1, while IL-6 mRNA expression did not significantly differ at any time point. SOCS3 mRNA expression was higher in the hyperglycemic skin at every time point. Imaging of fluorescent immunohistology also revealed significantly lower expression of SOCS3, but higher nuclear pSTAT3 in the epidermis of the hyperglycemic skin. Primary mouse keratinocytes cultured in high glucose for 7 days displayed 2-fold higher IL-6Rα mRNA and higher rmIL-6-induced nuclear pSTAT3, but lower SOCS3 basal levels compared to normal glucose-cultured cells. Thus, it appears that delayed diabetic skin wound healing is associated with increased induction and expression of IL-6 and its receptor, but its function in epidermal keratinocytes may be impaired.
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Park HJ, Kim JW. Role of Hydrogen Sulfide in the Survival of Fibroblasts and Fibroblast-mediated Contraction of Collagen Gel. JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY 2019. [DOI: 10.3341/jkos.2019.60.10.975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Hyeon Jin Park
- Department of Ophthalmology, Daegu Catholic University School of Medicine, Daegu, Korea
| | - Jae Woo Kim
- Department of Ophthalmology, Daegu Catholic University School of Medicine, Daegu, Korea
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Zada M, Pattamatta U, White A. Modulation of Fibroblasts in Conjunctival Wound Healing. Ophthalmology 2017; 125:179-192. [PMID: 29079272 DOI: 10.1016/j.ophtha.2017.08.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/18/2017] [Accepted: 08/21/2017] [Indexed: 12/20/2022] Open
Abstract
Modulating conjunctival wound healing has the potential to improve outcomes after glaucoma filtration surgery and for several ocular disorders, including ocular cicatrial pemphigoid, vernal keratoconjunctivitis, and pterygium. Although anti-inflammatories and antimetabolites have been used with success, these nonspecific agents are not without their complications. The search for novel and more targeted means to control conjunctival fibrosis without such limitations has brought much attention to the regulation of fibroblast proliferation, differentiation, extracellular matrix production, and apoptosis. This review provides an update on where we stand with current antifibrotic agents and outlines the strategies that novel agents use, as they evolve from the bench to the bedside.
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Affiliation(s)
- Mark Zada
- Glaucoma Cell Biology Group, The Westmead Institute for Medical Research, NSW, Australia; Discipline of Ophthalmology, Sydney Medical School, University of Sydney, NSW, Australia.
| | - Ushasree Pattamatta
- Glaucoma Cell Biology Group, The Westmead Institute for Medical Research, NSW, Australia; Discipline of Ophthalmology, Sydney Medical School, University of Sydney, NSW, Australia
| | - Andrew White
- Glaucoma Cell Biology Group, The Westmead Institute for Medical Research, NSW, Australia; Discipline of Ophthalmology, Sydney Medical School, University of Sydney, NSW, Australia; Save Sight Institute, University of Sydney, NSW, Australia
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Stewart E, Saker S, Amoaku W. Dexamethasone reverses the effects of high glucose on human retinal endothelial cell permeability and proliferation in vitro. Exp Eye Res 2016; 151:75-81. [DOI: 10.1016/j.exer.2016.08.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 07/13/2016] [Accepted: 08/09/2016] [Indexed: 01/30/2023]
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Erol YO, Atilla P, Acaroglu G, Muftuoglu S, Karakaya J. A histopathological investigation of Tenon's capsule in diabetic eyes. Int Ophthalmol 2016; 37:627-633. [PMID: 27515167 DOI: 10.1007/s10792-016-0316-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 08/01/2016] [Indexed: 10/21/2022]
Abstract
The aim of this study is to investigate the histopathological features of Tenon's capsule in eyes with diabetic macular oedema and to compare them between diabetic eyes and healthy subjects. The study included 26 eyes with diabetic oedema and 17 healthy eyes as healthy controls. Tenon's capsule biopsy specimens were processed with the routine electron microscopic analysis technique. Type I and III collagen fibres were labelled immunohistochemically to determine the amounts of predominating collagen fibres. Leica Q-Win program was used to calculate the amounts of collagen fibres type I and type III and independent-t test was utilized to compare the obtained results between the groups. Statistical significance was set at p < 0.05. Demographic characteristics of both groups were similar (p > 0.05). Collagen type I and type III immunoreactivity was observed both in the control and the diabetic groups. The Amounts of collagen fibres type I and type III were significantly higher in the diabetic group than in the control group (mean collagen type I area: 13.410 ± 0.99 and mean collagen type III area: 23.692 ± 0.17 in the control group; mean collagen type I area: 25.270 ± 6.48 and mean collagen type III area: 28.192 ± 0.82 in the diabetic group. p = 0.0037 for type I and p = 0.0000 for type III). In light of the findings of this study, it can be assumed that diabetes mellitus may engender increased amounts of collagen in Tenon's capsule. This alteration affecting the success of filtration surgery should be kept in mind especially in diabetic eyes with glaucoma.
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Affiliation(s)
- Yasemin Ozdamar Erol
- Ankara Ulucanlar Eye Research Hospital, Ulucanlar cad. No: 59 Altındağ, 06100, Ankara, Turkey.
| | - Pergin Atilla
- Department of Histology and Embryology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Golge Acaroglu
- Ankara Ulucanlar Eye Research Hospital, Ulucanlar cad. No: 59 Altındağ, 06100, Ankara, Turkey
| | - Sevda Muftuoglu
- Department of Histology and Embryology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Jale Karakaya
- Department of Biostatistics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Costa L, Cunha JP, Amado D, Pinto LA, Ferreira J. Diabetes Mellitus as a Risk Factor in Glaucoma's Physiopathology and Surgical Survival Time: A Literature Review. J Curr Glaucoma Pract 2016; 9:81-5. [PMID: 26997842 PMCID: PMC4779946 DOI: 10.5005/jp-journals-10008-1190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 11/13/2015] [Indexed: 11/23/2022] Open
Abstract
Glaucoma is a multifactorial condition under serious influence of many risk factors. The role of diabetes mellitus (DM) in glaucoma etiology or progression remains inconclusive. Although, the diabetic patients have different healing mechanism comparing to the general population and it has a possible-negative role on surgical outcomes. This review article attempts to analyze the association of both diseases, glaucoma and DM, before and after the surgery. The epidemiological studies, based mainly in population prevalence analyzes, have shown opposite outcomes in time and even in the most recent articles also the association remains inconclusive. On the contrary, the experimental models based on animal induced chronic hyperglycemia have shown an important association of both diseases, explained by common neurodegenerative mechanisms. Diabetic patients have a different wound healing process in the eye viz-a-viz other organs. The healing process is more and it results in lower surgical survival time, higher intraocular pressure (IOP) levels and, therefore, these patients usually need more medication to lower the IOP. Both randomized and nonrandomized retrospective and experimental molecular studies have shown the association between DM and glaucoma. Further studies are needed to get better explanations about outcomes on more recent surgical procedures and with the exponential use of antifibrotics. How to cite this article: Costa L, Cunha JP, Amado D, Pinto LA, Ferreira J. Diabetes Mellitus as a Risk Factor in Glaucoma's Physiopathology and Surgical Survival Time: A Literature Review. J Curr Glaucoma Pract 2015;9(3):81-85.
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Affiliation(s)
- Lívio Costa
- Consultant, Department of Ophthalmology, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - João Paulo Cunha
- Consultant, Department of Ophthalmology, Centro Hospitalar de Lisboa Central; Faculty of Medical Sciences, New University, Lisbon Portugal
| | - Duarte Amado
- Consultant, Department of Ophthalmology, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | - Luís Abegão Pinto
- Professor, Department of Ophthalmology, Centro Hospitalar de Lisboa; Institute of Pharmacology and Neurosciences, Faculty of Medicine, Lisbon University, Lisbon, Portugal
| | - Joana Ferreira
- Consultant, Department of Ophthalmology, Centro Hospitalar de Lisboa Central; Faculty of Medical Sciences, New University, Lisbon Portugal
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Shi H, Cheng Y, Ye J, Cai P, Zhang J, Li R, Yang Y, Wang Z, Zhang H, Lin C, Lu X, Jiang L, Hu A, Zhu X, Zeng Q, Fu X, Li X, Xiao J. bFGF Promotes the Migration of Human Dermal Fibroblasts under Diabetic Conditions through Reactive Oxygen Species Production via the PI3K/Akt-Rac1- JNK Pathways. Int J Biol Sci 2015; 11:845-59. [PMID: 26078726 PMCID: PMC4466465 DOI: 10.7150/ijbs.11921] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 04/13/2015] [Indexed: 12/26/2022] Open
Abstract
Fibroblasts play a pivotal role in the process of cutaneous wound repair, whereas their migratory ability under diabetic conditions is markedly reduced. In this study, we investigated the effect of basic fibroblast growth factor (bFGF) on human dermal fibroblast migration in a high-glucose environment. bFGF significantly increased dermal fibroblast migration by increasing the percentage of fibroblasts with a high polarity index and reorganizing F-actin. A significant increase in intracellular reactive oxygen species (ROS) was observed in dermal fibroblasts under diabetic conditions following bFGF treatment. The blockage of bFGF-induced ROS production by either the ROS scavenger N-acetyl-L-cysteine (NAC) or the NADPH oxidase inhibitor diphenylene iodonium chloride (DPI) almost completely neutralized the increased migration rate of dermal fibroblasts promoted by bFGF. Akt, Rac1 and JNK were rapidly activated by bFGF in dermal fibroblasts, and bFGF-induced ROS production and promoted dermal fibroblast migration were significantly attenuated when suppressed respectively. In addition, bFGF-induced increase in ROS production was indispensable for the activation of focal adhesion kinase (FAK) and paxillin. Therefore, our data suggested that bFGF promotes the migration of human dermal fibroblasts under diabetic conditions through increased ROS production via the PI3K/Akt-Rac1-JNK pathways.
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Affiliation(s)
- Hongxue Shi
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Yi Cheng
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Jingjing Ye
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Pingtao Cai
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Jinjing Zhang
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Rui Li
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Ying Yang
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Zhouguang Wang
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Hongyu Zhang
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Cai Lin
- 2. The First Affiliate Hospital, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xianghong Lu
- 3. Translation Medicine Research Center, Lishui People's Hospital, Wenzhou Medical University, Lishui, 323000, China
| | - Liping Jiang
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Aiping Hu
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Xinbo Zhu
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Qiqiang Zeng
- 2. The First Affiliate Hospital, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiaobing Fu
- 4. Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Science, Chinese PLA General Hospital, Beijing, PR China
| | - Xiaokun Li
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
| | - Jian Xiao
- 1. School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, 325035 China
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Saker S, Stewart E, Browning A, Allen C, Amoaku W. The effect of hyperglycaemia on permeability and the expression of junctional complex molecules in human retinal and choroidal endothelial cells. Exp Eye Res 2014; 121:161-7. [DOI: 10.1016/j.exer.2014.02.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 01/07/2014] [Accepted: 02/19/2014] [Indexed: 12/29/2022]
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13
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Brunner S, Binder S. Surgery for Proliferative Diabetic Retinopathy. Retina 2013. [DOI: 10.1016/b978-1-4557-0737-9.00111-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vidro EK, Gee S, Unda R, Ma JX, Tsin A. Glucose and TGFbeta2 modulate the viability of cultured human retinal pericytes and their VEGF release. Curr Eye Res 2009; 33:984-93. [PMID: 19085381 DOI: 10.1080/02713680802450976] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE Determine the effects of glucose and exogenous TGFbeta2 on viability and VEGF release by human retinal pericytes (HRP). METHODS Human retinal pericytes (HRP) were cultured in 5 mM (physiologic) or high (18 mM) glucose with or without added TGFbeta2. Viable cells were counted; TGFbeta2 and VEGF in the conditioned media (CM) were measured by ELISA. RESULTS High glucose significantly reduced viable cell number and increased the levels of TGFbeta2 and VEGF. TGFbeta2 caused a significant dose-dependent effect on viable cell number and on the level of VEGF secreted into the CM by HRP in physiologic glucose, decreasing viable cell number, and increasing VEGF release per 1000 cells at a low concentration (0.1 ng/ml) and increasing viable cell number and decreasing VEGF release per 1000 cells at higher concentrations (1.0 and 10 ng/ml). TGFbeta2 affected neither parameter in high glucose. CONCLUSIONS Elevated glucose decreased HRP viability and modulated changes in TGFbeta2 and VEGF release. This suggests a novel mechanism for HRP dropout in diabetic retinopathy.
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Affiliation(s)
- Eileen K Vidro
- Department of Biology, University of Texas at San Antonio, San Antonio, Texas 78249, USA
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