Publications by authors named "Postel E"

Purpose: To investigate comorbidities and medications associated with acute (ASCH) and delayed (DSCH) suprachoroidal hemorrhage (SCH), and to explore visual outcomes and mortality following SCH.

Methods: Retrospective review of SCH cases diagnosed at a tertiary center between 2013 and 2019. Demographics, history, surgery type, visual acuity, intraocular pressure (IOP), and mortality data were reviewed.

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Purpose: To investigate the clinical outcomes of methicillin-resistant (MRSA) endophthalmitis.

Methods: Clinical courses were reviewed for 17 eyes (15 patients) with endogenous MRSA endophthalmitis based on positive blood and vitreous culture or clinical suspicion between 2013 to 2019 at Duke University Hospitals.

Results: Of 17 eyes, initial VA ranged from 20/40 to light perception.

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Purpose: To describe the management of a rhegmatogenous retinal detachment (RRD) in a pregnant patient.

Observations: A 30-year-old, 26-week pregnant female presented with curtain vision loss in the left eye. Exam findings were significant in the left eye for an inferior fovea-sparing RRD.

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Purpose: To identify factors associated with the successful treatment of malignant glaucoma (MG).

Design: Retrospective case series.

Methods: Setting: single institution; study population: 64 eyes (55 subjects) with MG; observation procedure(s): chart review; main outcome measures: anatomy, intraocular pressure (IOP), best visual acuity (BVA).

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Background: Age-related macular degeneration (AMD) is a leading cause of blindness in developed countries. Few studies have investigated its relationship to environmental neurotoxicants. In previous cross-sectional studies, we found an association between pesticide use and self-reported retinal degeneration.

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Purpose: To report differences in visual acuities among patients with Coats' disease who sought treatment at a tertiary care university-based practice.

Design: Single-center retrospective cohort study.

Participants: Patients with Coats' disease diagnosed clinically, angiographically, or both from 1995 through 2015.

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Cystic fibrosis results from mutations in the cystic fibrosis transmembrane conductance regulator (CFTR), a cAMP-dependent protein kinase A (PKA) and ATP-regulated chloride channel. Here, we demonstrate that nucleoside diphosphate kinase B (NDPK-B, NM23-H2) forms a functional complex with CFTR. In airway epithelia forskolin/IBMX significantly increases NDPK-B co-localisation with CFTR whereas PKA inhibitors attenuate complex formation.

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Article Synopsis
  • Advanced age-related macular degeneration (AMD) is a major cause of blindness in older adults, and current treatment options are limited.
  • A study analyzed over 12 million genetic variants, finding 52 significant variants related to AMD in a large cohort of patients and controls.
  • The research highlights shared genetic factors for both wet and dry AMD, identifies a unique genetic signal for wet AMD near the MMP9 gene, and emphasizes the importance of rare coding variants in discovering causal genes.
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Purpose: The authors have recently developed a high-resolution microscope-integrated spectral domain optical coherence tomography (MIOCT) device designed to enable OCT acquisition simultaneous with surgical maneuvers. The purpose of this report is to describe translation of this device from preclinical testing into human intraoperative imaging.

Methods: Before human imaging, surgical conditions were fully simulated for extensive preclinical MIOCT evaluation in a custom model eye system.

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Purpose: To identify genetic associations between specific risk genes and bilateral advanced age-related macular degeneration (AMD) in a retrospective, observational case series of 1,003 patients: 173 patients with geographic atrophy in at least 1 eye and 830 patients with choroidal neovascularization in at least 1 eye.

Methods: Patients underwent clinical examination and fundus photography. The images were subsequently graded using a modified grading system adapted from the Age-Related Eye Disease Study.

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A 67-year-old African-American male with untreated hypertension, hyperlipidemia, and diabetes mellitus presented with sudden, staggering, progressive loss of vision in his left eye over the course of 8 days. Ophthalmologic and fluorescein angiography exams confirmed central retinal artery conclusion, but revealed no embolus. Magnetic resonance imaging of the brain serendipitously revealed restricted diffusion within the distal left optic nerve, illustrating a more proximal occlusion, which matched the fluorescein angiographic findings.

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We executed a genome-wide association scan for age-related macular degeneration (AMD) in 2,157 cases and 1,150 controls. Our results validate AMD susceptibility loci near CFH (P < 10(-75)), ARMS2 (P < 10(-59)), C2/CFB (P < 10(-20)), C3 (P < 10(-9)), and CFI (P < 10(-6)). We compared our top findings with the Tufts/Massachusetts General Hospital genome-wide association study of advanced AMD (821 cases, 1,709 controls) and genotyped 30 promising markers in additional individuals (up to 7,749 cases and 4,625 controls).

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Age-related macular degeneration (AMD) is a complex degenerative retinal disease influenced by both genetic and environmental risk factors. We assessed whether single nucleotide polymorphisms (SNPs) in the NOS2A gene increase risk and modulate the effect of smoking in AMD. 998 Caucasian subjects (712 AMD cases and 286 controls) were genotyped for 17 SNPs in NOS2A.

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Controversy remains as to which gene at the chromosome 10q26 locus confers risk for age-related macular degeneration (AMD) and statistical genetic analysis is confounded by the strong linkage disequilibrium (LD) across the region. Functional analysis of related genetic variations could solve this puzzle. Recently, Fritsche et al.

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Purpose: To examine overall diet quality in relation to advanced age-related macular degeneration (AMD).

Methods: This case-control study identified 437 advanced AMD patients and 259 unrelated controls using stereoscopic color fundus photographs. Participants were predominantly non-Hispanic White men and women from North Carolina and Tennessee.

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Purpose. To investigate whether female reproductive history and hormone replacement therapy (HRT) or birth control pills (BCPs) influence risk for age-related macular degeneration (AMD) and whether genetic factors interact with HRT to modulate AMD risk. Methods.

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Heterotrimeric G proteins in physiological and pathological processes have been extensively studied so far. However, little is known about mechanisms regulating the cellular content and compartmentalization of G proteins. Here, we show that the association of nucleoside diphosphate kinase B (NDPK B) with the G protein betagamma dimer (Gbetagamma) is required for G protein function in vivo.

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Import of exogenous plasmid DNA (pDNA) into mammalian cell nuclei represents a key intracellular obstacle to efficient non-viral gene delivery. This includes access of the pDNA to the nuclei of non-dividing cells where the presence of an intact nuclear membrane is limiting for gene transfer. Here we identify, isolate, and characterize, cytoplasmic determinants of pDNA nuclear import into digitonin-permeabilized HeLa cells.

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Nm23/NDP kinases A and B encoded by the Nme1/Nme2 genes are multifunctional enzymes responsible for the majority of NDP kinase activity in mammals. This review summarizes recent studies on their physiological roles using a mouse model in which both Nme1 and Nme2 genes have been deleted. The double knockout mice are stunted in growth and die perinatally.

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