RESUMO
PURPOSE: Omentin, a member of the adipocytokines family, is derived from adipose tissue and a lower level of serum omentin is considered as a metabolic risk factor. The aim of the present study is to evaluate the serum levels of omentin in patients with pseudoexfoliation syndrome (PES). MATERIALS AND METHODS: Patients without any systemic or ocular disease other than PES were included in the study. Age-matched and sex-matched healthy volunteers without PES were accepted as a control group. After detailed ophthalmologic examination, blood samples were obtained from a forearm vein. Serum levels of omentin were determined by the method of enzyme-linked immunosorbent assay. RESULTS: The mean age of the PES group (12 females, 12 males, n=24) was 75.2 ± 8.4 years, and the control group (10 females, 10 males, n=20) was 75 ± 6.7 years. There was no difference between the groups in terms of age (P=0.93) and sex (P=0.9). The mean serum levels of omentin in the PES group were 801.5 ± 317.1 ng/mL and in the control group were 1150.1 ± 584.1 ng/mL. The mean serum omentin levels were significantly lower in patients with PES (P=0.016). CONCLUSION: Lower levels of serum omentin in patients with PES compared with healthy subjects may support the theory of systemic nature of the disease.
Assuntos
Citocinas/sangue , Síndrome de Exfoliação/sangue , Lectinas/sangue , Idoso , Pressão Sanguínea , Ensaio de Imunoadsorção Enzimática , Feminino , Proteínas Ligadas por GPI/sangue , Humanos , Pressão Intraocular , Masculino , Estudos Prospectivos , Fatores de Risco , Tonometria OcularRESUMO
PURPOSE: The aim of this study was to determine serum and aqueous xanthine oxidase (XO) levels, and mRNA expression in anterior lens epithelial cells in pseudoexfoliation (PEX). METHODS: In this prospective study, serum, aqueous and anterior lens capsules were taken from 21 patients with PEX and 23 normal subjects who had undergone routine cataract surgery. Serum and aqueous XO levels were analyzed using the colorimetric method. mRNA expression of XO in anterior lens epithelial cells was evaluated using reverse transcription polymerase chain reaction analysis. RESULTS: Serum XO levels (means ± standard deviations) were 207.0 ± 86.1 IU/mL and 240.6 ± 114.1 IU/mL in the normal and PEX groups, respectively (p = 0.310). Aqueous XO levels (means ± standard deviations) were 65.5 ± 54.3 IU/mL in the normal group and 130.5 ± 117.4 IU/mL in the PEX group (p = 0.028). There was a 2.9 fold decrease in mRNA expression in anterior lens epithelial cells of PEX, which is significantly lower than the normal group (p = 0.01). CONCLUSIONS: Higher aqueous XO levels lacking associated different serum XO suggests higher oxidative stress in the aqueous. Higher aqueous XO levels in PEX with decreased mRNA expression in anterior lens epithelial cells indicate possible overexpression of XO in other structures related to the aqueous.
Assuntos
Humor Aquoso/enzimologia , Células Epiteliais/enzimologia , Síndrome de Exfoliação/genética , Regulação Enzimológica da Expressão Gênica/fisiologia , RNA Mensageiro/genética , Xantina Oxidase/sangue , Xantina Oxidase/genética , Idoso , Idoso de 80 Anos ou mais , Cápsula Anterior do Cristalino/citologia , Síndrome de Exfoliação/enzimologia , Feminino , Humanos , Pressão Intraocular , Masculino , Estudos Prospectivos , Reação em Cadeia da Polimerase em Tempo Real , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Acuidade Visual/fisiologiaRESUMO
A 27-year-old man who presented with diplopia and proptosis and was diagnosed with euthyroid Graves disease and restrictive strabismus. It was determined that his symptoms were caused by isolated lateral rectus muscle involvement. Diplopia resolved and ocular motility improved substantially following 6 weeks of oral corticosteroid therapy.