17 documents found, page 1 of 2

Clinical studies using stem cells for treatment of retinal diseases: state of t...

ABSTRACT Degenerative retinal diseases such as retinitis pigmentosa, Stargardt’s macular dystrophy, and age-related macular degeneration are characterized by irreversible loss of vision due to direct or indirect photoreceptor damage. No effective treatments exist, but stem cell studies have shown promising results. Our aim with this review was to describe the types of stem cells that are under study, their effe...

Potencial do teste IGRA (Interferon Gama Release Assay) para o diagnóstico de t...

Resumo A detecção precisa da infecção latente por tuberculose está se tornando cada vez mais importante devido ao aumento do uso de medicamentos imunossupressores e da epidemia do vírus da imunodeficiência humana, o que aumentou o risco de reativação à tuberculose ativa (TB). O Teste IGRA QuantiFERON® TB Gold apresenta vantagens frente ao teste de PPD como por exemplo, requer somente uma coleta de amostra sangu...

Structure-functional correlation using adaptive optics, OCT, and microperimetry...

ABSTRACT We report retinal functional and structural changes of a 40-year-old man diagnosed with occult macular dystrophy. Comprehensive ophthalmological evaluation was performed, followed by spectral-domain optical coherence tomography (SD-OC - Heidelberg) and image acquisition using an adaptive optics (AO) camera (RTX1, Imagine Eyes) for photoreceptor density analysis. Functional tests included full-field ERG...

Choroidal neovascularization silent on optical coherence tomography: report of ...

ABSTRACT Herein, we report two cases of vision loss after successful cataract surgery, associated with drusenoid retinal pigment epithelial detachment without features of choroidal neovascularization on optical coherence tomography along with angiographic examinations suggestive of choroidal neovascularization in which anatomical and functional improvements were achieved with intravitreal injections of anti-vas...

Molecular diagnosis of symptomatic toxoplasmosis: a 9-year retrospective and pr...

ABSTRACT Symptomatic forms of toxoplasmosis are a serious public health problem and occur in around 10-20% of the infected people. Aiming to improve the molecular diagnosis of symptomatic toxoplasmosis in Brazilian patients, this study evaluated the performance of real time PCR testing two primer sets (B1 and REP-529) in detecting Toxoplasma gondii DNA. The methodology was assayed in 807 clinical samples with k...

Association of high-density lipoprotein and apolipoprotein E genetic variants w...

Purpose: This study aimed to evaluate the association of age-related macular degeneration (AMD) with apolipoprotein E (APOE) variants and serum lipid profiles, including levels and fractions of total serum cholesterol (TC), low-density lipoprotein cholesterol (LDLc), and high-density lipoprotein cholesterol (HDLc), and triglycerides (TG). Methods: Genotyping of APOE-HhaI was performed in 134 patients (study gro...

Influence of VEGF-C936T genetic variant on age-related macular degeneration

ABSTRACTPurpose:To evaluate the association between the VEGF-C936T polymorphism and serum vascular endothelial growth factor (VEGF) levels, lifestyle, and demographic parameters in patients with age-related macular degeneration (AMD).Methods:A total of 183 individuals were enrolled in the present study, including 88 patients with AMD receiving clinical and pharmacological treatment (study group, SG) and 95 indi...

Pesquisa translacional na oftalmologia: o caminho para a medicina personalizada

A investigação científica é tradicionalmente dividida em duas categorias: a pesquisa básica e a pesquisa aplicada. A pesquisa básica é necessária para proporcionar o melhor entendimento do estado normal versus doença, mas não diretamente traduzindo esse conhecimento em aplicação clínica útil. A pesquisa translacional seria o avanço da ciência aplicado ao desenvolvimento de novos testes de diagnóstico, drogas e ...

Stem cell therapy in retinal diseases?

Possible mechanisms of retinal function recovery with the use of cell therapy w...

Bone marrow has been proposed as a potential source of stem cells for regenerative medicine. In the eye, degeneration of neural cells in the retina is a hallmark of such widespread ocular diseases as age-related macular degeneration (AMD) and retinitis pigmentosa. Bone marrow is an ideal tissue for studying stem cells mainly because of its accessibility. Furthermore, there are a number of well-defined mouse mod...