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Sanie-Jahromi F, Khaki M, Heydari M, Nowroozzadeh MH, Akbarizadeh AR, Daneshamouz S, NejatyJahromy Y, Nejabat M, Mahmoudi A, Zareei A, Nejabat M. Effect of low dose honey on the apoptosis and inflammation gene expression in corneal limbal stem cells and keratocytes and its efficacy as an ophthalmic formulation in the treatment of dry eye: in-vitro and clinical study. Front Med (Lausanne) 2024; 11:1359463. [PMID: 38831993 PMCID: PMC11144896 DOI: 10.3389/fmed.2024.1359463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 04/29/2024] [Indexed: 06/05/2024] Open
Abstract
Background The use of honey as an eye treatment encounters challenges due to its high osmolarity, low pH, and difficulties in sterilization. This study addresses these issues by employing a low concentration of honey, focusing on both in-vitro experiments and clinical trials for treating dry eye disease in corneal cells. Methods In the in-vitro experiment, we investigated the impact of a 1% honey-supplemented medium (HSM) on limbal stem cells (LSCs) and keratocytes using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay and real-time polymerase chain reaction (PCR) for BCL-2, BAX, and IL-1β gene expression. Simultaneously, in the clinical trial, 80 participants were divided into two groups, receiving either a 1% w/v honey ophthalmic formulation or a placebo for 3 months. Study outcomes included subjective improvement in dry eye symptoms, tear break-up time (TBUT), and Schirmer's test results. Results MTT results indicated that 1% HSM did not compromise the survival of corneal cells and significantly reduced the expression of the IL-1β gene. Additionally, participants in the honey group demonstrated a higher rate of improvement in dry eye symptoms and a significant enhancement in TBUT values at the three-month follow-up. However, there was no significant difference between the study groups in terms of Schirmer's test values. No adverse events were observed or reported. Conclusion In conclusion, 1% honey exhibits anti-inflammatory and anti-infective properties, proving effective in ameliorating dry eye symptoms and enhancing tear film stability in patients with dry eye disease.Clinical Trial Registration: https://irct.behdasht.gov.ir/trial/63800.
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Affiliation(s)
- Fatemeh Sanie-Jahromi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Khaki
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mojtaba Heydari
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Hossein Nowroozzadeh
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amin Reza Akbarizadeh
- Department of Quality Control, Food and Drug, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeid Daneshamouz
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Yaser NejatyJahromy
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Nejabat
- HIV/AIDS Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Mahmoudi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Athar Zareei
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahmood Nejabat
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Wang S, Qiu Y, Zhu F. An updated review of functional ingredients of Manuka honey and their value-added innovations. Food Chem 2024; 440:138060. [PMID: 38211407 DOI: 10.1016/j.foodchem.2023.138060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 01/13/2024]
Abstract
Manuka honey (MH) is a highly prized natural product from the nectar of Leptospermum scoparium flowers. Increased competition on the global market drives MH product innovations. This review updates comparative and non-comparative studies to highlight nutritional, therapeutic, bioengineering, and cosmetic values of MH. MH is a good source of phenolics and unique chemical compounds, such as methylglyoxal, dihydroxyacetone, leptosperin glyoxal, methylsyringate and leptosin. Based on the evidence from in vitro, in vivo and clinical studies, multifunctional bioactive compounds of MH have exhibited anti-oxidative, anti-inflammatory, immunomodulatory, anti-microbial, and anti-cancer activities. There are controversial topics related to MH, such as MH grading, safety/efficacy, implied benefits, and maximum levels of contaminants concerned. Artificial intelligence can optimize MH studies related to chemical analysis, toxicity prediction, multi-functional mechanism exploration and product innovation.
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Affiliation(s)
- Sunan Wang
- Canadian Food and Wine Institute, Niagara College, 135 Taylor Road, Niagara-on-the-Lake, Ontario L0S 1J0, Canada; School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Yi Qiu
- Division of Engineering Science, Faculty of Applied Science and Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario M5S 1A4, Canada
| | - Fan Zhu
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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3
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Magdas TM, David M, Hategan AR, Filip GA, Magdas DA. Geographical Origin Authentication-A Mandatory Step in the Efficient Involvement of Honey in Medical Treatment. Foods 2024; 13:532. [PMID: 38397509 PMCID: PMC10887874 DOI: 10.3390/foods13040532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Nowadays, in people's perceptions, the return to roots in all aspects of life is an increasing temptation. This tendency has also been observed in the medical field, despite the availability of high-level medical services with many years of research, expertise, and trials. Equilibrium is found in the combination of the two tendencies through the inclusion of the scientific experience with the advantages and benefits provided by nature. It is well accepted that the nutritional and medicinal properties of honey are closely related to the botanical origin of the plants at the base of honey production. Despite this, people perceive honey as a natural and subsequently a simple product from a chemical point of view. In reality, honey is a very complex matrix containing more than 200 compounds having a high degree of compositional variability as function of its origin. Therefore, when discussing the nutritional and medicinal properties of honey, the importance of the geographical origin and its link to the honey's composition, due to potential emerging contaminants such as Rare Earth Elements (REEs), should also be considered. This work offers a critical view on the use of honey as a natural superfood, in a direct relationship with its botanical and geographical origin.
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Affiliation(s)
- Tudor Mihai Magdas
- Department of Anatomy, “Iuliu Hatieganu” University of Medicine and Pharmacy, 3-5 Clinicilor Street, 400006 Cluj-Napoca, Romania; (T.M.M.); (G.A.F.)
| | - Maria David
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania; (M.D.); (A.R.H.)
| | - Ariana Raluca Hategan
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania; (M.D.); (A.R.H.)
| | - Gabriela Adriana Filip
- Department of Anatomy, “Iuliu Hatieganu” University of Medicine and Pharmacy, 3-5 Clinicilor Street, 400006 Cluj-Napoca, Romania; (T.M.M.); (G.A.F.)
| | - Dana Alina Magdas
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania; (M.D.); (A.R.H.)
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4
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Jones ZJM, Huang Y, Green KJ, Hammer KA. Changes in antibacterial activity, colour, and hydrogen peroxide content of Western Australian Jarrah and Marri honeys after storage at different temperatures over time. J Appl Microbiol 2023; 134:lxad164. [PMID: 37505452 DOI: 10.1093/jambio/lxad164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 06/08/2023] [Accepted: 07/28/2023] [Indexed: 07/29/2023]
Abstract
AIMS This study aimed to evaluate the effects of storage and different temperatures on the antibacterial activity and physicochemical characteristics of several types of honey. METHODS AND RESULTS Honeys stored for 16 weeks at 37 and 45°C showed significant declines in antibacterial activity determined by minimum inhibitory concentrations, the loss of hydrogen peroxide, decreases in honey pH, and increases in honey colour, with changes most pronounced at 45°C. In contrast, honeys stored for 16 weeks at ambient (∼22°C) and cold (4, -20, and -80°C) temperatures showed only minor changes. In a second set of 12 honeys stored for 16-32 months at ambient temperature and then 4°C, honeys showed minor changes in antibacterial activity, increases in colour, and decreases in pH. For a third set of 17 honeys stored for five years at ambient temperature, the honeys showed almost complete loss of hydrogen peroxide and were all significantly darker in colour, but showed varied changes in antibacterial activity. CONCLUSIONS Heat was detrimental to the antibacterial activity of honeys, as was long-term storage at ambient temperatures for some honeys but not others.
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Affiliation(s)
- Zachary J M Jones
- School of Biomedical Sciences, The University of Western Australia, Crawley WA 6009, Australia
| | - Yina Huang
- School of Biomedical Sciences, The University of Western Australia, Crawley WA 6009, Australia
| | - Kathryn J Green
- School of Biomedical Sciences, The University of Western Australia, Crawley WA 6009, Australia
- Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), The University of Western Australia, Crawley 6009, Australia
| | - Katherine A Hammer
- School of Biomedical Sciences, The University of Western Australia, Crawley WA 6009, Australia
- Cooperative Research Centre for Honey Bee Products Limited (CRC HBP), The University of Western Australia, Crawley 6009, Australia
- The Marshall Centre for Infectious Diseases Research and Training, School of Biomedical Sciences, Crawley 6009, Australia
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Palma-Morales M, Huertas JR, Rodríguez-Pérez C. A Comprehensive Review of the Effect of Honey on Human Health. Nutrients 2023; 15:3056. [PMID: 37447382 DOI: 10.3390/nu15133056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
Honey is a nutritious, healthy, and natural food, to which antioxidant, anti-inflammatory, and antimicrobial properties have been attributed, mainly due to its content of phenolic compounds. The aim of this review is to analyze the available evidence of the effect of honey on humans. Forty-eight clinical trials published between 1985 and 2022 were analyzed, with a total of 3655 subjects. More beneficial effects of honey intake than no or negative effects on different cardiovascular and metabolic risk factors, glucose tolerance, mucositis caused by chemo-radiotherapy, cough in children and wound healing, among others have been observed. Although the number of studies conducted to date is limited and the different investigations are not standardized, beneficial effects of honey intake have been observed, especially when its intake replaces the intake of other sweeteners. In addition, honey could be a safe adjuvant to be administered alongside drugs used for certain diseases.
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Affiliation(s)
- Marta Palma-Morales
- Biomedical Research Centre, Institute of Nutrition and Food Technology (INYTA) 'José Mataix', University of Granada, Avda. del Conocimiento s/n, 18071 Granada, Spain
- Department of Nutrition and Food Science, Faculty of Pharmacy, University of Granada, Cartuja Campus, 18011 Granada, Spain
| | - Jesús R Huertas
- Biomedical Research Centre, Institute of Nutrition and Food Technology (INYTA) 'José Mataix', University of Granada, Avda. del Conocimiento s/n, 18071 Granada, Spain
- Primary Care Promotion of Maternal, Child and Women's Health for Prevention of Adult Chronic Diseases Network (RD21/0012/0008), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Celia Rodríguez-Pérez
- Biomedical Research Centre, Institute of Nutrition and Food Technology (INYTA) 'José Mataix', University of Granada, Avda. del Conocimiento s/n, 18071 Granada, Spain
- Department of Nutrition and Food Science, Faculty of Pharmacy, University of Granada, Cartuja Campus, 18011 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
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Markoulli M, Ahmad S, Arcot J, Arita R, Benitez-Del-Castillo J, Caffery B, Downie LE, Edwards K, Flanagan J, Labetoulle M, Misra SL, Mrugacz M, Singh S, Sheppard J, Vehof J, Versura P, Willcox MDP, Ziemanski J, Wolffsohn JS. TFOS Lifestyle: Impact of nutrition on the ocular surface. Ocul Surf 2023; 29:226-271. [PMID: 37100346 DOI: 10.1016/j.jtos.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 04/06/2023] [Indexed: 04/28/2023]
Abstract
Nutrients, required by human bodies to perform life-sustaining functions, are obtained from the diet. They are broadly classified into macronutrients (carbohydrates, lipids, and proteins), micronutrients (vitamins and minerals) and water. All nutrients serve as a source of energy, provide structural support to the body and/or regulate the chemical processes of the body. Food and drinks also consist of non-nutrients that may be beneficial (e.g., antioxidants) or harmful (e.g., dyes or preservatives added to processed foods) to the body and the ocular surface. There is also a complex interplay between systemic disorders and an individual's nutritional status. Changes in the gut microbiome may lead to alterations at the ocular surface. Poor nutrition may exacerbate select systemic conditions. Similarly, certain systemic conditions may affect the uptake, processing and distribution of nutrients by the body. These disorders may lead to deficiencies in micro- and macro-nutrients that are important in maintaining ocular surface health. Medications used to treat these conditions may also cause ocular surface changes. The prevalence of nutrition-related chronic diseases is climbing worldwide. This report sought to review the evidence supporting the impact of nutrition on the ocular surface, either directly or as a consequence of the chronic diseases that result. To address a key question, a systematic review investigated the effects of intentional food restriction on ocular surface health; of the 25 included studies, most investigated Ramadan fasting (56%), followed by bariatric surgery (16%), anorexia nervosa (16%), but none were judged to be of high quality, with no randomized-controlled trials.
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Affiliation(s)
- Maria Markoulli
- School of Optometry and Vision Science, UNSW Sydney, NSW, Australia.
| | - Sumayya Ahmad
- Icahn School of Medicine of Mt. Sinai, New York, NY, USA
| | - Jayashree Arcot
- Food and Health, School of Chemical Engineering, UNSW Sydney, Australia
| | - Reiko Arita
- Department of Ophthalmology, Itoh Clinic, Saitama, Japan
| | | | | | - Laura E Downie
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Katie Edwards
- School of Optometry and Vision Science, Queensland University of Technology, Brisbane, Australia
| | - Judith Flanagan
- School of Optometry and Vision Science, UNSW Sydney, NSW, Australia; Vision CRC, USA
| | - Marc Labetoulle
- Ophthalmology Department, Hospital Bicêtre, APHP, Paris-Saclay University, Le Kremlin-Bicêtre, France; IDMIT (CEA-Paris Saclay-Inserm U1184), Fontenay-aux-Roses, France
| | - Stuti L Misra
- Department of Ophthalmology, New Zealand National Eye Centre, The University of Auckland, Auckland, New Zealand
| | | | - Sumeer Singh
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - John Sheppard
- Virginia Eye Consultants, Norfolk, VA, USA; Eastern Virginia Medical School, Norfolk, VA, USA
| | - Jelle Vehof
- Departments of Ophthalmology and Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Section of Ophthalmology, School of Life Course Sciences, King's College London, London, UK; Department of Ophthalmology, Vestfold Hospital Trust, Tønsberg, Norway
| | - Piera Versura
- Cornea and Ocular Surface Analysis - Translation Research Laboratory, Ophthalmology Unit, DIMEC Alma Mater Studiorum Università di Bologna, Italy; IRCCS AOU di Bologna Policlinico di Sant'Orsola, Bologna, Italy
| | - Mark D P Willcox
- School of Optometry and Vision Science, UNSW Sydney, NSW, Australia
| | - Jillian Ziemanski
- School of Optometry, University of Alabama at Birmingham, Birmingham, AL, USA
| | - James S Wolffsohn
- College of Health & Life Sciences, School of Optometry, Aston University, Birmingham, UK
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7
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Prinz J, Maffulli N, Fuest M, Walter P, Hildebrand F, Migliorini F. Honey-Related Treatment Strategies in Dry Eye Disease. Pharmaceuticals (Basel) 2023; 16:ph16050762. [PMID: 37242545 DOI: 10.3390/ph16050762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
This systematic review and meta-analysis investigated whether honey-related treatment strategies improve the signs and symptoms of patients with dry eye disease (DED). In March 2023, the following databases were accessed for clinical trials investigating the efficacy of honey-related treatment strategies in DED: PubMed, Web of Science, Google Scholar, and EMBASE. The following data were extracted at baseline and at the last follow-up: Ocular Surface Disease Index, tear breakup time, Schirmer I test, and corneal staining. Data from 323 patients were retrieved (53.3% female, mean age 40.6 ± 18.1 years). The mean follow-up was 7.0 ± 4.2 weeks. All the endpoints of interest significantly improved from baseline to the last follow-up: tear breakup time (p = 0.01), Ocular Surface Disease Index (p < 0.0001), Schirmer I test (p = 0.0001), and corneal staining (p < 0.0001). No difference was found in tear breakup time (p = 0.3), Ocular Surface Disease Index (p = 0.4), Schirmer I test (p = 0.3), and corneal staining (p = 0.3) between the honey-related treatment strategies and the control groups. According to our main results, honey-related treatment strategies are effective and feasible to improve symptoms and signs of DED.
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Affiliation(s)
- Julia Prinz
- RWTH University Hospital of Aachen, 52074 Aachen, Germany
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Salerno, Italy
- Barts and The London School of Medicine and Dentistry, Mile End Hospital, Queen Mary University of London, 275 Bancroft Road, London E1 4DG, UK
- School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Thornburrow Drive, Stoke on Trent ST4 7QB, UK
| | - Matthias Fuest
- RWTH University Hospital of Aachen, 52074 Aachen, Germany
| | - Peter Walter
- RWTH University Hospital of Aachen, 52074 Aachen, Germany
| | | | - Filippo Migliorini
- RWTH University Hospital of Aachen, 52074 Aachen, Germany
- Department of Orthopaedics and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), 39100 Bolzano, Italy
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8
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Stapleton F, Abad JC, Barabino S, Burnett A, Iyer G, Lekhanont K, Li T, Liu Y, Navas A, Obinwanne CJ, Qureshi R, Roshandel D, Sahin A, Shih K, Tichenor A, Jones L. TFOS lifestyle: Impact of societal challenges on the ocular surface. Ocul Surf 2023; 28:165-199. [PMID: 37062429 PMCID: PMC10102706 DOI: 10.1016/j.jtos.2023.04.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/18/2023]
Abstract
Societal factors associated with ocular surface diseases were mapped using a framework to characterize the relationship between the individual, their health and environment. The impact of the COVID-19 pandemic and mitigating factors on ocular surface diseases were considered in a systematic review. Age and sex effects were generally well-characterized for inflammatory, infectious, autoimmune and trauma-related conditions. Sex and gender, through biological, socio-economic, and cultural factors impact the prevalence and severity of disease, access to, and use of, care. Genetic factors, race, smoking and co-morbidities are generally well characterized, with interdependencies with geographical, employment and socioeconomic factors. Living and working conditions include employment, education, water and sanitation, poverty and socioeconomic class. Employment type and hobbies are associated with eye trauma and burns. Regional, global socio-economic, cultural and environmental conditions, include remoteness, geography, seasonality, availability of and access to services. Violence associated with war, acid attacks and domestic violence are associated with traumatic injuries. The impacts of conflict, pandemic and climate are exacerbated by decreased food security, access to health services and workers. Digital technology can impact diseases through physical and mental health effects and access to health information and services. The COVID-19 pandemic and related mitigating strategies are mostly associated with an increased risk of developing new or worsening existing ocular surface diseases. Societal factors impact the type and severity of ocular surface diseases, although there is considerable interdependence between factors. The overlay of the digital environment, natural disasters, conflict and the pandemic have modified access to services in some regions.
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Affiliation(s)
- Fiona Stapleton
- School of Optometry and Vision Science, UNSW, Sydney, NSW, Australia.
| | - Juan Carlos Abad
- Department of Ophthalmology, Antioquia Ophthalmology Clinic-Clofan, Medellin, Antioquia, Colombia
| | - Stefano Barabino
- ASST Fatebenefratelli-Sacco, Ospedale L. Sacco-University of Milan, Milan, Italy
| | - Anthea Burnett
- School of Optometry and Vision Science, UNSW, Sydney, NSW, Australia
| | - Geetha Iyer
- C. J. Shah Cornea Services, Sankara Nethralaya, Chennai, Tamil Nadu, India
| | - Kaevalin Lekhanont
- Department of Ophthalmology, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Tianjing Li
- Department of Ophthalmology, School of Medicine, University of Colorado Anschutz Medical Campus, Denver, CO, USA
| | - Yang Liu
- Ophthalmology Department, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Alejandro Navas
- Conde de Valenciana, National Autonomous University of Mexico UNAM, Mexico City, Mexico
| | | | - Riaz Qureshi
- Department of Ophthalmology, School of Medicine, University of Colorado Anschutz Medical Campus, Denver, CO, USA
| | - Danial Roshandel
- Centre for Ophthalmology and Visual Science (incorporating Lions Eye Institute), The University of Western Australia, Nedlands, WA, Australia
| | - Afsun Sahin
- Department of Ophthalmology, Koc University Medical School, İstanbul, Turkey
| | - Kendrick Shih
- Department of Ophthalmology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Anna Tichenor
- School of Optometry, Indiana University, Bloomington, IN, USA
| | - Lyndon Jones
- Centre for Ocular Research & Education (CORE), School of Optometry and Vision Science, University of Waterloo, Waterloo, ON, Canada
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9
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Identification of insect sources of honey in China based on real-time fluorescent LAMP technology. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.104875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Abd Rashid N, Mohammed SNF, Syed Abd Halim SA, Ghafar NA, Abdul Jalil NA. Therapeutic Potential of Honey and Propolis on Ocular Disease. Pharmaceuticals (Basel) 2022; 15:1419. [PMID: 36422549 PMCID: PMC9696375 DOI: 10.3390/ph15111419] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 09/01/2023] Open
Abstract
Honey and propolis have recently become the key target of attention for treating certain diseases and promoting overall health and well-being. A high content of flavonoids and phenolic acids found in both honey and propolis contributes to the antioxidant properties to scavenge free radicals. Honey and propolis also exhibited antibacterial effects where they act in two ways, namely the production of hydrogen peroxide (H2O2) and gluconic acids following the enzymatic activities of glucose oxidase, which exerts oxidative damage on the bacteria. Additionally, the anti-inflammatory effects of honey and propolis are mainly by reducing proinflammatory factors such as interleukins and tumor necrosis factor alpha (TNF-α). Their effects on pain were discovered through modulation at a peripheral nociceptive neuron or binding to an opioid receptor in the higher center. The aforementioned properties of honey have been reported to possess potential therapeutic topical application on the exterior parts of the eyes, particularly in treating conjunctivitis, keratitis, blepharitis, and corneal injury. In contrast, most of the medicinal values of propolis are beneficial in the internal ocular area, such as the retina, optic nerve, and uvea. This review aims to update the current discoveries of honey and propolis in treating various ocular diseases, including their antioxidant, anti-inflammatory, antibacterial, and anti-nociceptive properties. In conclusion, research has shown that propolis and honey have considerable therapeutic promise for treating various eye illnesses, although the present study designs are primarily animal and in vitro studies. Therefore, there is an urgent need to translate this finding into a clinical setting.
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Affiliation(s)
- Norhashima Abd Rashid
- Department of Biomedical Science, Faculty of Applied Science, Lincoln University College, Petaling Jaya 47301, Malaysia
| | - Siti Nur Farhana Mohammed
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | | | - Norzana Abd Ghafar
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Nahdia Afiifah Abdul Jalil
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
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11
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Abstract
Dry eye has become an increasingly prevalent public health issue for which there is currently no cure. Manuka honey possesses anti-inflammatory and antioxidant properties that can be used to treat dry eye. The present study aimed to systematically review evidence supporting the treatment of dry eye with manuka honey and quantify this evidence via meta-analysis. Randomised clinical trials that fulfilled the inclusion criteria from database inception until 5 September 2021, were identified through online searches of seven databases, including but not limited to Embase, Medline, and Central. Changes between the point of longest follow-up and baseline subjective symptoms, tear film quality, ocular surface characteristics, adverse events, and compliance were selected for meta-analysis. A total of 288 adult participants with dry eye from five eligible randomised controlled trials were analysed. Compared with the control groups, treatment with manuka honey demonstrated a significant improvement in Ocular Surface Disease Index, Standard Patient Evaluation of Eye Dryness, tear evaporation rate, negative conversion rate of matrix metalloproteinase-9 levels, ocular surface staining, and daily use frequency of lubricant. No serious adverse events were reported, except for temporary stinging and redness, which were generally tolerated. This review found that manuka honey demonstrated promising results for the treatment of dry eye. However, limitations of the included studies and analytical methodology affect the reliability of this conclusion. Therefore, further high-quality randomised clinical trials are required to confirm the efficacy and safety of the use of manuka honey in the treatment of dry eye.
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Affiliation(s)
- Jindong Hu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Lingwen Kong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Sixing Zhu
- Institute of Science, Technology and Humanities of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mohan Ju
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
| | - Qianfu Zhang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
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Preparation and Characterisation of a Cyclodextrin-Complexed Mānuka Honey Microemulsion for Eyelid Application. Pharmaceutics 2022; 14:pharmaceutics14071493. [PMID: 35890390 PMCID: PMC9324298 DOI: 10.3390/pharmaceutics14071493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 11/26/2022] Open
Abstract
Honey has been widely purported as a natural remedy due to its antimicrobial and anti-inflammatory effects. In recent years, several studies have suggested that the considerably high methylglyoxal (MGO) concentration in Mānuka honey (MH) makes it particularly effective to manage bacterial overload, such as that observed in blepharitis. However, the poor solubility, high viscosity, and osmolarity of aqueous honey solutions, especially at the high MGO concentrations studied in the literature, render the formulation of an acceptable dosage form for topical application to the eyelids challenging. Here, the antibacterial properties of raw MH and alpha-cyclodextrin (α-CD)-complexed MH were evaluated at relatively low MGO concentrations, and a liquid crystalline-forming microemulsion containing α-CD-complexed MH was formulated. After determining pH and osmolarity, ocular tolerability was assessed using human primary corneal epithelial cells and chorioallantoic membranes, while the antibacterial efficacy was further evaluated in vitro. The α-CD–MH complex had significantly greater antibacterial activity against Staphylococcus aureus than either constituent alone, which was evident even when formulated as a microemulsion. Moreover, the final formulation had a physiologically acceptable pH and osmolarity for eyelid application and was well-tolerated when diluted 1:10 with artificial tear fluid, as expected to be the case after accidental exposure to the ocular surface in the clinical setting. Thus, a safe and efficient MH dosage form was developed for topical application to the eyelids, which can potentially be used to support optimal eyelid health in the management of blepharitis.
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Xia Y, Lu T, Wang L, Mo J, Jin Y, Zhang L, Du S. Intrinsic Raman signal amplification for rapid identification and detection of methylglyoxal in manuka honey. Anal Chim Acta 2021; 1181:338902. [PMID: 34556229 DOI: 10.1016/j.aca.2021.338902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/16/2021] [Accepted: 08/01/2021] [Indexed: 11/20/2022]
Abstract
Methylglyoxal (MGO) is the primary material basis for the non-peroxide antibacterial activity (NPA) of manuka honey from New Zealand. Therefore, it is necessary to identify the quality or discriminate the grade of honey because no all manuka honeys on the market display the NPA. The current routine method employed for the detection of MGO involves high-performance liquid chromatography (HPLC) test. However, it requires long time (∼8 h) for sample derivatization. Herein, we report an intrinsic Raman signal amplification strategy for the rapid identification and detection of MGO by using silver-coated gold nanoparticles (Au@Ag NPs) along with a high selective surface-enhanced Raman scattering (SERS) probe 8-thioguanosine (8-TG). 8-TG is synthesized via the derivatization of 8-bromoguanosine (8-BG) with thiourea, and its Raman peak assignments were confirmed by computer simulation. The detection is performed through the Raman intensity ratio (I631/I700) variation of N2-(1-carboxyethyl)-thioguanosine (CETG) formed by the reaction between 8-TG and MGO on surface of Au@Ag NPs, where one CETG Raman intensity at 631 cm-1 increases while the other one at 700 cm-1 decreases oppositely. The opposite change not only yields an intrinsic Raman signal amplification, but also provides built-in correction. As a result, the proposed SERS method exhibits high sensitivity and accuracy. In addition, the whole analytical test is achieved within ∼20 min. The method can be used for the fast detection of MGO in manuka honey and discrimination of the honey grade.
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Affiliation(s)
- Yuhong Xia
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Tian Lu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Liping Wang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jinling Mo
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yang Jin
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Liying Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
| | - Shuhu Du
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
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Martínez-Pulgarín DF, Ávila MY, Rodríguez-Morales AJ. Interventions for Demodex blepharitis and their effectiveness: A systematic review and meta-analysis. Cont Lens Anterior Eye 2021; 44:101453. [PMID: 33972176 DOI: 10.1016/j.clae.2021.101453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE A systematic review and meta-analysis was performed to evaluate the effectiveness of interventions in the treatment ofDemodex blepharitis in adult patients. METHODS A systematic review and meta-analysis of studies reporting the efficacy of treatments forDemodex blepharitis in the main databases (PubMed / Scopus / Cochrane / EMBASE / Science Direct / WOS / Scielo / Google Scholar / metaRegister of Controlled Trials / ClinicalTrials.gov/ WHO ICTRP) until November 24, 2020 was performed according to the PRISMA statement for meta-analysis. RESULTS Overall, 18 studies were included for 29 different interventions in 1195 participants with 1574 eyes that were positive for Demodex Spp. Demodex counts, total eradication, clinical improvement, Ocular Surface Disease Index, Tear Break-Up Time, cylindrical dandruff, Schirmer test, osmolarity and adverse reactions were analysed, and stratified sub-analyses conducted. The overall effects for Demodex count (mean difference), total eradication (risk ratio) and adverse reactions (risk difference) were -2.07 (95 % CI -3.99 to -0.15) p = 0.03, 1.84 (95 % CI 1.27-2.66) p = 0.001 and 0.24 (95 % CI 0.08 to 0.41) p = 0.005, respectively. The most frequent interventions evaluated in the included studies were tea tree oil (TTO) and its derivatives, such as terpinen 4-ol. CONCLUSION Multiple therapeutic choices were evaluated in this meta-analysis. Pharmacological interventions were superior to non-pharmacological (mechanical, thermal and pulsed light) interventions. It was not possible to establish significant differences between TTO and non-TTO-derived treatments. Adverse reactions were more frequent in TTO-derived treatments, however all were mild. It is necessary to execute studies with longer follow-up times to determine whether re-infestation occurs after the administration of different treatments.
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Affiliation(s)
- Dayron F Martínez-Pulgarín
- Department of Ophthalmology, School of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia; Basic and Clinic Ophthalmology Research Group, School of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia.
| | - Marcel Y Ávila
- Department of Ophthalmology, School of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia; Basic and Clinic Ophthalmology Research Group, School of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Alfonso J Rodríguez-Morales
- Grupo de Investigación Biomedicina, Faculty of Medicine, Fundacion Universitaria Autonoma de las Americas, Pereira, Risaralda, Colombia
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Ross E, Furniss E, Chandramohan N, Markoulli M. The multi-faceted approach to dry eye disease. Clin Exp Optom 2021; 104:417-420. [PMID: 33689611 DOI: 10.1080/08164622.2021.1877534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Emilie Ross
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
| | - Emma Furniss
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia.,The Dry Eye Institute, Sydney, Australia
| | - Nivaasheni Chandramohan
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia.,Macular Disease Foundation, Sydney, Australia
| | - Maria Markoulli
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
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Li ALW, Li SL, Kam KW, Young AL. Randomised assessor -masked trial evaluating topical manuka honey (Optimel) in treatment of meibomian gland dysfunction. Br J Ophthalmol 2021; 106:777-780. [PMID: 33419788 DOI: 10.1136/bjophthalmol-2020-317506] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/03/2020] [Accepted: 12/24/2020] [Indexed: 01/05/2023]
Abstract
PURPOSE To evaluate the effects of manuka honey eye-drops in the treatment of meibomian gland dysfunction. METHODS This is an assessor-masked (single-blind), randomised controlled trial comparing conventional treatment group with interventional group using Optimel 16% manuka honey topical eye-drops. 59 patients were recruited to the study and randomised into two groups: one given regular lubricants and the other given Optimel 16% manuka honey eye-drops. The Standard Patient Evaluation of Eye Dryness (SPEED) score was measured at baseline and on follow-up. 4 patients were lost to follow-up. Multiple ocular surface parameters were graded from slit lamp examination by a masked assessor. Results were compared from baseline to follow-up date 3 weeks later. RESULTS Patients in the conventional treatment group demonstrated minimal difference in SPEED score at 3-week follow-up (mean difference 1.087, p=0.183), which was not statistically significant. However, measurements of tear film break-up time, corneal surface stain (Oxford), lid margin, conjunctival redness, as well as meibum quality and expressibility showed significant improvements at 3 weeks (p<0.01). Patients in the manuka honey eye-drops group showed significant difference after 3 weeks in SPEED score (mean difference 2.53, p=0.006), as well as in lid margin redness, conjunctival redness, corneal surface stain (Oxford), and meibum quality and expressibility (p=0.000). CONCLUSIONS Optimel 16% manuka honey eye-drops showed significant improvement in symptoms and objective signs in meibomian gland dysfunction and are an effective alternative treatment for meibomian gland dysfunction. TRIAL REGISTRATION NUMBER NCT04457648.
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Affiliation(s)
- Anita Lai-Wah Li
- Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Sophia Ling Li
- Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Ka Wai Kam
- Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Alvin Lerrmann Young
- Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
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Ben Hadj Salah W, Baudouin C, Doan S, Angoulvant A, Gottlieb J, Bénichou J, Da Cunha E, Eid L, Labetoulle M, Rousseau A. [Demodex and ocular surface disease]. J Fr Ophtalmol 2020; 43:1069-1077. [PMID: 33127178 DOI: 10.1016/j.jfo.2020.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/08/2020] [Accepted: 08/24/2020] [Indexed: 12/12/2022]
Abstract
Demodex is a saprophytic mite of the ocular adnexa, which can in certain circumstances proliferate on the skin of the face and on the eyelid margins. It is involved in facial rosacea (especially in the papulopustular form) and in the development or aggravation of anterior and/or posterior blepharitis or even keratoconjunctivitis, often in association with cutaneous lesions ; the pathophysiology is often multifactorial. Symptoms are non-specific, but the presence of cylindrical sleeves on the eyelashes is very suggestive of infestation, and certain techniques of biomicroscopic examination or imaging, such as confocal microscopy in vivo, allow direct visualization of the parasite. Parasitological examination of the eyelashes can confirm the diagnosis and can be improved by good sampling technique. Eyelid hygiene and oil-based ointments are the cornerstone of treatment. New specific treatments, in particular topical treatments based on tea tree oil, ivermectin, as well as pulsed light therapy and micro-exfoliation of the eyelid margin, can help to reduce the parasitic load and improve symptoms.
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Affiliation(s)
- W Ben Hadj Salah
- Service d'ophtalmologie, hôpital Bicêtre, CHU de Bicêtre, Assistance Publique-Hôpitaux de Paris, université Paris-Saclay, réseau OPHTARA : maladies rares en ophtalmologie, Paris, France
| | - C Baudouin
- Services d'ophtalmologie, CHNO des XV-XX, et hôpital Ambroise-Paré, Assistance Publique-Hôpitaux de Paris, université Versailles-St-Quentin-en-Yvelines, IHU de Sight Restore Saclay, Paris, France; Institut de la vision, Sorbonne université, Inserm, CNRS, Sorbonne, France
| | - S Doan
- Service d'ophtalmologie, CHU de Bichat, Assistance Publique-Hôpitaux de Paris et Fondation ophtalmologique Rothschild, réseau OPHTARA : maladies rares en ophtalmologie, Paris, France
| | - A Angoulvant
- Service de parasitologie, hôpital Bicêtre, CHU de Bicêtre, Assistance Publique-Hôpitaux de Paris, université Paris-Saclay, Paris, France
| | - J Gottlieb
- Service d'immunologie clinique & consultation de dermatologie, hôpital Bicêtre, CHU de Bicêtre, Assistance Publique-Hôpitaux de Paris, université Paris-Saclay, Paris, France
| | - J Bénichou
- Service d'ophtalmologie, hôpital Bicêtre, CHU de Bicêtre, Assistance Publique-Hôpitaux de Paris, université Paris-Saclay, réseau OPHTARA : maladies rares en ophtalmologie, Paris, France
| | - E Da Cunha
- Service d'ophtalmologie, hôpital Bicêtre, CHU de Bicêtre, Assistance Publique-Hôpitaux de Paris, université Paris-Saclay, réseau OPHTARA : maladies rares en ophtalmologie, Paris, France
| | - L Eid
- Service d'ophtalmologie, hôpital Bicêtre, CHU de Bicêtre, Assistance Publique-Hôpitaux de Paris, université Paris-Saclay, réseau OPHTARA : maladies rares en ophtalmologie, Paris, France
| | - M Labetoulle
- Service d'ophtalmologie, hôpital Bicêtre, CHU de Bicêtre, Assistance Publique-Hôpitaux de Paris, université Paris-Saclay, réseau OPHTARA : maladies rares en ophtalmologie, Paris, France; Département immunologie des maladies virales, auto-immunes, bactériennes et hématologiques (IMVA-HB). UMR 1184, CEA, Fontenay-Aux-Roses, France
| | - A Rousseau
- Service d'ophtalmologie, hôpital Bicêtre, CHU de Bicêtre, Assistance Publique-Hôpitaux de Paris, université Paris-Saclay, réseau OPHTARA : maladies rares en ophtalmologie, Paris, France; Département immunologie des maladies virales, auto-immunes, bactériennes et hématologiques (IMVA-HB). UMR 1184, CEA, Fontenay-Aux-Roses, France.
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