Electroretinogram
Mostrando 1-12 de 116 artigos, teses e dissertações.
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1. Effects and mechanisms of water-soluble Semen cassiae polysaccharide on retinitis pigmentosa in rats
Abstract This study aimed to investigate the effects and mechanisms of water-soluble Semen cassiae polysaccharide (SCP) on retinitis pigmentosa (RP) in rats. One hundred rats were randomly divided into control, model, and 50, 100 and 200 mg/kg SCP groups. The 50, 100 and 200 mg/kg SCP groups were treated with 50, 100 and 200 mg/kg SCP for 5 days, respectivel
Food Sci. Technol. Publicado em: 2020-03
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2. Effects and mechanisms of water-soluble Semen cassiae polysaccharide on retinitis pigmentosa in rats
Abstract This study aimed to investigate the effects and mechanisms of water-soluble Semen cassiae polysaccharide (SCP) on retinitis pigmentosa (RP) in rats. One hundred rats were randomly divided into control, model, and 50, 100 and 200 mg/kg SCP groups. The 50, 100 and 200 mg/kg SCP groups were treated with 50, 100 and 200 mg/kg SCP for 5 days, respectivel
Food Sci. Technol. Publicado em: 15/07/2019
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3. Intravitreal injection of the synthetic peptide LyeTx I b, derived from a spider toxin, into the rabbit eye is safe and prevents neovascularization in a chorioallantoic membrane model
Abstract Background: The great diversity of molecules found in spider venoms include amino acids, polyamines, proteins and peptides, among others. Some of these compounds can interact with different neuronal receptors and ion channels including those present in the ocular system. To study potential toxicity and safety of intravitreal injection in rabbits of
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 17/12/2018
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4. Early visual changes in diabetic patients with no retinopathy measured by color discrimination and electroretinography
Early visual changes caused by diabetes include color vision losses and an abnormal full-field electroretinogram. The purpose of this study was to evaluate color vision in type 2 diabetic patients with no clinically detectable retinopathy using an objective psychophysical color vision test, evaluate retinal function assessed by full-field electroretinography
Psychol. Neurosci.. Publicado em: 2013
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5. Visual acuity and retinal function in patients with Bardet-Biedl syndrome
OBJECTIVE: Bardet-Biedl syndrome is a genetic, multisystem disorder that causes severe visual impairment. This condition is characterized by retinal dystrophy, obesity, digit anomalies, renal disease, and hypogonadism. The purpose of this study was to analyze visual acuity and full-field electroretinogram findings in patients with the Bardet-Biedl syndrome p
Clinics. Publicado em: 2012
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6. Estudo da eletrorretinografia do camundongo modelo de alzheimer (3xTg-AD) / Study of the electroretinogram of the Alzheimers disease model mouse (3xTg-AD)
Objetivo: Avaliar eletrofisiologicamente a função da retina do camundongo modelo de Alzheimer (3xTg-AD) comparando com seu controle (b6;129-PS1) em um estudo longitudinal com seis idades (2, 4, 6, 8, 10 e 12 meses). Métodos: Eletrorretinogramas (ERGs) foram registrados em 44 camundongos 3xTg-AD e em 23 controles, após administrada anestesia. Para o regis
Publicado em: 2011
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7. Correlação entre o eletrorretinograma de padrão reverso, a tomografia de coerência óptica e a perimetria automatizada na detecção da perda neural na atrofia em banda do nervo óptico / Relationship between pattern electroretinogram, optical coherence tomography and automated perimetry for detection of neural loss in eyes with band atrophy of the optic nerve
PURPOSE: To evaluate the ability of full-field and hemifield pattern electroretinogram parameters to differentiate between healthy eyes and eyes with band atrophy of the optic nerve and also to evaluate the relationship between pattern electroretinogram amplitude, macular and retinal nerve fiber layer thickness by optical coherence tomography, and visual fie
Publicado em: 2010
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8. Estudo eletrofisiológico e psicofísico em indivíduos intoxicados por vapor de mercúrio / Electrophysiological and psychophysical study of mercury vapor intoxicated subjects
Purpose. To analyse visual field sensitivity in a group of workers retired from thefluorescent lamp industry diagnosed with chronic occupational metallic mercurialism using psychophysical tests such as automated perimetry and measuring the retina cellselectrical responses with the multifocal electroretinogram. Methods. The psychophysical evaluation of the vi
Publicado em: 2008
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9. Full field electroretinogram in diabetic dogs with cataract / Eletrorretinograma de campo total em cães diabéticos com catarata
Diabete melito (DM) é uma doença freqüente, complexa e multifatorial, caracterizada pela ausência absoluta ou relativa de insulina, correspondendo a uma das principais endocrinopatias no cão. Freqüentemente, o cão diabético é acometido por catarata, resultando em cegueira e impossibilitando a oftalmoscopia, diferentemente do homem, no qual a oftalmo
Publicado em: 2008
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10. Visão de cores e sensibilidade ao contraste em indivíduos com diabete melito: avaliação psicofísica e eletrofisiológica / Color vision and contrast sensitivity in subjects with diabetes mellitus : psychophysical and electrophysiological evaluation
Before the establishment of retinopathy detectable in the ophthalmologic examination, color vision and contrast sensitivity may be altered in diabetic patients. (Dean e cols., 1997; Kurtenbach e cols., 1999). The sensory deficits have been attributed to vascular alterations and to (Greenstein e cols., 2000; Lieth e cols., 2000). However, there are no definit
Publicado em: 2004
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11. Pattern electroretinogram in multiple sclerosis.
The pattern electroretinogram obtained in patients affected by multiple sclerosis were compared with those in a normal population. The pattern electroretinogram amplitude in multiple sclerosis optic neuritis frequently appeared normal, but pattern electroretinogram amplitude abnormalities were found in patients suffering from recurrent multiple sclerosis opt
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12. Pattern electroretinogram and automated perimetry in patients with glaucoma and ocular hypertension.
To determine whether the pattern electroretinogram can improve the objectivity of visual field assessment, 39 patients with glaucoma and ocular hypertension were studied. This was to establish whether there is a correlation between the pattern electroretinogram and the global indices (mean deviation and corrected pattern standard deviation) provided by autom