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Loureiro T, Rodrigues-Barros S, Carreira AR, Gouveia-Moraes F, Carreira P, Vide Escada A, Campos P, Machado I, Campos N, Archer TJ, Reinstein DZ, Ambrósio R. Corneal Epithelium Asymmetry in Children With Atopy: The Effect of Hand Dominance. Clin Ophthalmol 2022; 16:2453-2461. [PMID: 35968053 PMCID: PMC9365055 DOI: 10.2147/opth.s375504] [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: 05/31/2022] [Accepted: 07/25/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose To evaluate the effect of eye rubbing on the epithelial thickness profile in tomographically normal corneas by AS-OCT and to compare right and left eyes in right-handed children. Methods Thirty right-handed boys (mean age 11.2 years) with ocular allergy and history of eye rubbing were evaluated using Scheimpflug (Pentacam HR, Oculus Wetzlar, Germany) and anterior segment optical coherence tomography. Epithelial thickness (ET) and full corneal thickness (CT) parameters were compared between right and left eyes with a non-parametric Mann–Whitney test. A p-value lower than 0.05 was considered for statistical significance. Results No eyes had topometric nor tomographic criteria for keratoconus. The min-max ET was lower in right eyes (−2.8 µm vs −3.5; p = 0.02). The difference between inferior and superior (I-S) octants was lower in right eyes (1.1 µm vs 1.9 µm; p = 0.03) as a result of inferotemporal thinning. The highest ET difference was registered between nasal and temporal octants and was more pronounced in the right eyes (2 µm vs 3.1 µm; p < 0.001). Conclusion AS-OCT analyses reveal different epithelial thickness patterns between the eyes in young atopic patients, likely eye rubbers. Inferior and temporal epithelial thickness seem to be more affected by thinning in the eye on the side of the dominant hand.
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Affiliation(s)
- Tomás Loureiro
- Ophthalmology Department, Hospital Garcia de Orta, Almada, Portugal
- Correspondence: Tomás Loureiro, Ophthalmology Department, Hospital Garcia de Orta, Avenida Torrado da Silva, Almada, 2805-267, Portugal, Tel +35 1 913 513 175, Email
| | | | | | | | - Pedro Carreira
- Ophthalmology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Ana Vide Escada
- Ophthalmology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Paul Campos
- Ophthalmology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Inês Machado
- Ophthalmology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Nuno Campos
- Ophthalmology Department, Hospital Garcia de Orta, Almada, Portugal
| | | | | | - Renato Ambrósio
- Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
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Lopes AG, de Almeida Júnior GC, Teixeira RM, de Mattos LC, Brandão de Mattos CC, Castiglioni L. Absence of the c.169+50delTAAACAG mutation of SOD1 gene in a sample of keratoconus patients in Brazilian population. BMC Res Notes 2020; 13:328. [PMID: 32646478 PMCID: PMC7346509 DOI: 10.1186/s13104-020-05166-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/30/2020] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE To determine the presence of the 7-bp deletion c.169+50delTAAACAG in intron 2 of Superoxide Dismutase-1 gene in keratoconic patients from the State of São Paulo, Brazil, which promotes splicing variations, resulting in non-functional Superoxide Dismutase-1 antioxidant proteins, which may damage the corneal structure. RESULTS A group of 35 keratoconic patients, from whom 35 peripheral blood samples and 58 samples of corneal fragments were evaluated, and a control group of 89 individuals, from whom 41 blood samples and 149 samples of corneal fragments were collected. After the amplification of DNA fragments by polymerase chain reaction, mutational screening analysis was performed by enzymatic digestion, followed by direct sequencing. The absence of the 7-bp c.169+50delTAAACAG mutation in intron 2 of Superoxide Dismutase-1 gene was detected in the analyzed subjects of the 2 groups, both in the cornea and peripheral blood samples. Then, according to our results, there is no involvement of c.169+50delTAAACAG deletion in the pathogenesis of keratoconus in this population, once it was not detected. But we emphasize that studies involving this deletion must be continued in an attempt to elucidate this issue.
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Affiliation(s)
- Alessandro Garcia Lopes
- Biology Department, Instituto de Biociências, Letras e Ciências Exatas, IBILCE-UNESP, Universidade Estadual Paulista "Júlio de Mesquita Filho,", Rua Cristóvão Colombo, 2265, São José do Rio Preto, São Paulo, 15054-000, Brazil.,Immunogenetics Laboratory, Molecular Biology Department, Faculdade de Medicina de São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, Vila São Pedro, São José do Rio Preto, São Paulo, 15090-000, Brazil
| | - Gildásio Castello de Almeida Júnior
- Ophthalmology Outpatient Clinic, Hospital de Base de São José do Rio Preto, Fundação Faculdade Regional de Medicina (HB-FUNFARME), Avenida Brigadeiro Faria Lima, 5544, São José do Rio Preto, São Paulo, 15090-000, Brazil
| | - Ronan Marques Teixeira
- Biology Department, Instituto de Biociências, Letras e Ciências Exatas, IBILCE-UNESP, Universidade Estadual Paulista "Júlio de Mesquita Filho,", Rua Cristóvão Colombo, 2265, São José do Rio Preto, São Paulo, 15054-000, Brazil
| | - Luiz Carlos de Mattos
- Immunogenetics Laboratory, Molecular Biology Department, Faculdade de Medicina de São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, Vila São Pedro, São José do Rio Preto, São Paulo, 15090-000, Brazil
| | - Cinara Cássia Brandão de Mattos
- Immunogenetics Laboratory, Molecular Biology Department, Faculdade de Medicina de São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, Vila São Pedro, São José do Rio Preto, São Paulo, 15090-000, Brazil.
| | - Lilian Castiglioni
- Biology Department, Instituto de Biociências, Letras e Ciências Exatas, IBILCE-UNESP, Universidade Estadual Paulista "Júlio de Mesquita Filho,", Rua Cristóvão Colombo, 2265, São José do Rio Preto, São Paulo, 15054-000, Brazil. .,Epidemiology and Health Department, Faculdade de Medicina de São José do Rio Preto (FAMERP), Avenida Brigadeiro Faria Lima, 5416, Vila São Pedro, São José do Rio Preto, São Paulo, 15090-000, Brazil.
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