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Merino Diez MT, Soria Prada C, Zamorano Aleixandre M, Gonzalez-Lopez JJ. Gyrate atrophy of the choroid and retina: Update on diagnosis and treatment. Arch Soc Esp Oftalmol (Engl Ed) 2024:S2173-5794(24)00071-9. [PMID: 38663712 DOI: 10.1016/j.oftale.2024.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/12/2024] [Indexed: 04/30/2024]
Abstract
Gyrate atrophy of the choroid and retina (GACR) is a rare autosomal recessive disease characterised by elevated plasma ornithine levels due to deficiency of the enzyme ornithine aminotransferase (OAT). The accumulation of this amino acid in plasma leads to the development of patches of chorioretinal atrophy in the peripheral retina extending into the macular area. Patients usually present with night blindness followed by constriction of the visual field and, finally, decreased central vision and blindness. The disease is diagnosed by the presence of the characteristic clinical picture, the presence of hyperornithinaemia in plasma and the detection of mutations in the OAT enzyme gene. There is currently no effective gene therapy and the most common therapeutic intervention mainly involves dietary modifications with arginine restriction. This article aims to summarise the pathogenesis, clinical and diagnostic findings and treatment options in patients with GACR.
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Affiliation(s)
| | - C Soria Prada
- Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain
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Höfle U, Jose Gonzalez-Lopez J, Camacho MC, Solà-Ginés M, Moreno-Mingorance A, Manuel Hernández J, De La Puente J, Pineda-Pampliega J, Aguirre JI, Torres-Medina F, Ramis A, Majó N, Blas J, Migura-Garcia L. Foraging at Solid Urban Waste Disposal Sites as Risk Factor for Cephalosporin and Colistin Resistant Escherichia coli Carriage in White Storks ( Ciconia ciconia). Front Microbiol 2020; 11:1397. [PMID: 32849315 PMCID: PMC7399022 DOI: 10.3389/fmicb.2020.01397] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/29/2020] [Indexed: 11/16/2022] Open
Abstract
White stork (Ciconia ciconia) may act as a reservoir and vehicle of cephalosporin resistant (CR) Escherichia coli. Between 2011 and 2014, we sampled white storks from colonies exposed to different degrees of anthropic pressure across the major areas of natural distribution of white storks in Spain. Cloacal swab samples (n = 467) were obtained from individuals belonging to 12 different colonies from six different regions. Additionally, 70 samples were collected from recently deposited droppings at the base of nesting platforms. We phenotypically characterized E. coli isolates, confirmed presence of CR genes and classified plasmids. Risk factors for acquiring these genes were assessed. Overall, 8.8% (41 out of 467) storks carried CR E. coli in their cloaca and five (7.1%) were identified from recently deposited droppings; therefore, 46 isolates were further characterized. Of them, 20 contained blaCTX–M–1, nine blaCMY–2, six blaCTX–M–14, four blaSHV–12, three blaCTX–M–15, two blaCTX–M–32, one blaCTX–M–1 together with blaCMY–2, and one blaCTX–M–1 together with blaSHV–12. All were multidrug-resistant, and four harbored the plasmid-mediated colistin resistance mcr-1 gene. CR genes were associated with the presence of IncI1, IncFIB, and IncN replicon families. XbaI-macrorestriction analysis revealed a great diversity among most of the XbaI-PFGE types, but indistinguishable types were also seen with isolates obtained from different locations. Clonal complex 10 was the most common among CR E. coli and two blaCTX–M–15 positive isolates were identified as B2-ST131. Carriage of CR E. coli was significantly higher in colonies located close to solid urban waste disposal sites in which foraging on human waste was more likely and in one case to cattle grazing. The co-occurrence of blaCMY–2 and mcr-1 on plasmids of E. coli isolated from wild birds as early as 2011 is of note, as the earliest previous report of mcr-1 in wild birds is from 2016. Our study shows that foraging at landfills and in association with cattle grazing are important risk factors for the acquisition of CR E. coli in white storks.
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Affiliation(s)
- Ursula Höfle
- SaBio (Health and Biotechnology) Working Group, Instituto de Investigación en Recursos Cinéticos IREC (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Juan Jose Gonzalez-Lopez
- Servei de Microbiologia, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Maria Cruz Camacho
- SaBio (Health and Biotechnology) Working Group, Instituto de Investigación en Recursos Cinéticos IREC (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Marc Solà-Ginés
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Albert Moreno-Mingorance
- Servei de Microbiologia, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | | | - Javier Pineda-Pampliega
- Department of Biodiversity, Ecology and Evolution, Faculty of Biology, Complutense University of Madrid, Madrid, Spain
| | - José Ignacio Aguirre
- Department of Biodiversity, Ecology and Evolution, Faculty of Biology, Complutense University of Madrid, Madrid, Spain
| | - Fernando Torres-Medina
- Departamento de Biología de la Conservación, Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas, Seville, Spain.,Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Antoni Ramis
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain.,Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Natalia Majó
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain.,Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Julio Blas
- Departamento de Biología de la Conservación, Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas, Seville, Spain
| | - Lourdes Migura-Garcia
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
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