Oxidative Stress Mediates Epigenetic Modifications and the Expression of miRNAs and Genes Related to Apoptosis in Diabetic Retinopathy Patients.

Knowledge on the underlying mechanisms and molecular targets for managing the ocular complications of type 2 diabetes mellitus (T2DM) remains incomplete. Diabetic retinopathy (DR) is a major cause of irreversible visual disability worldwide. By using ophthalmological and molecular-genetic approaches, we gathered specific information to build a data network for deciphering the crosslink of oxidative stress (OS) and apoptosis (AP) processes, as well as to identify potential epigenetic modifications related to noncoding RNAs in the eyes of patients with T2DM.

Biomarkers of lipid peroxidation in the aqueous humor of primary open-angle glaucoma patients.

Objective: To investigate the lipid peroxidation (PEROX) processes in primary open-angle glaucoma (POAG) patients, and whether this mechanism may be related to disease progression.

Material And Methods: A prospective, observational, cross-sectional, non-experimental, and analytical study was conducted on a case and a comparison group, consisting of 175 surgical patients divided into: 1) POAG group (GG; n=88) and 2) comparison group of patients with cataracts (CG; n=87). Demographic data, patient characteristics, lifestyle data, as well as ophthalmological examination were registered in an Excel spreadsheet.

Giant conjunctival squamous cell carcinoma. Treatment with surgery following topical interferon alpha-2b.

Case Report: A 50-year-old man presented with a giant and invasive mass at the nasal limbus in his right eye. A surgical excision without safety margins was promptly performed, followed by interferon alpha-2b (IFNα2b) eye drops. After monitoring the patient for two years and after performing a number of biopsies, he remains free from any signs of disease.

[Safety and efficacy of outpatient glaucoma surgery].

Purpose: To assess the outcome of filtration surgery and to evaluate the incidence of postoperative complications in outpatient glaucoma surgery cases.

Methods: This retrospective study comprised 134 patients with glaucoma who underwent trabeculectomy either as out-patient (n= 54) or as in-patient (n= 80). The authors compared demographic data, preoperative glaucoma medications, surgical procedures, amount of filtration achieved, and postoperative complications between both groups.