Three-Year Safety Results of SAR422459 (EIAV-ABCA4) Gene Therapy in Patients With ABCA4-Associated Stargardt Disease: An Open-Label Dose-Escalation Phase I/IIa Clinical Trial, Cohorts 1-5.

Purpose: To report on the safety of the first 5 cohorts of a gene therapy trial using recombinant equine infectious anemia virus expressing ABCA4 (EIAV-ABCA4) in adults with Stargardt dystrophy due to mutations in ABCA4.

Design: Nonrandomized multicenter phase I/IIa clinical trial.

Methods: Patients received a subretinal injection of EIAVABCA4 in the worse-seeing eye at 3 dose levels and were followed for 3 years after treatment.

The 'dark' side of sedation: 12 years of office-based pediatric deep sedation for electroretinography in the dark.

Objectives: Analyze pediatric ERG data for adverse events, interventions, and outcomes of propofol sedations performed in near-complete darkness.

Aim: To demonstrate that deep sedation with propofol for ERG can be performed efficiently and safely in children in near-total darkness.

Background: Full-field electroretinography (ERG) is a valuable tool for the diagnosis of vision loss in children.

Investigation of the concentration of bacteria and their cell envelope components in indoor air in two elementary schools.

Bacterial cell envelope components are widely distributed in airborne dust, where they act as inflammatory agents causing respiratory symptoms. Measurements of these agents and other environmental factors are assessed in two elementary schools in a southeastern city in the United States. Muramic acid (MA) was used as a marker for bacterial peptidoglycan (PG), and 3-hydroxy fatty acids (3-OH FAs) were used as markers for Gram-negative bacterial lipopolysaccharide (LPS).

MS for identification of single nucleotide polymorphisms and MS/MS for discrimination of isomeric PCR products.

ESI (electrospray ionization) MS and tandem mass spectrometry (MS/MS) were used for the analysis of single nucleotide polymorphisms (SNPs) and more complex genetic variations. Double-stranded (ds) PCR products were studied. PCR products of the proline [5'-x(G17)-x(C38)x-3'] and arginine variants [(5'-x(Gl7)-x(G38)x-3'] of the p53 gene are distinguished by an SNP (cytosine or guanine) and were discriminated using both quadrupole and quadrupole ion trap MS analysis.

Failure To detect muramic acid in normal rat tissues but detection in cerebrospinal fluids from patients with Pneumococcal meningitis.

Muramic acid serves as a marker for the presence of bacterial cell wall debris in mammalian tissues. There have been a number of controversial and sometimes conflicting results on assessing the levels of muramic acid in health and disease. The present report is the first to use the state-of-the art technique, gas chromatography-tandem mass spectrometry, to identify and quantify the levels of muramic acid in tissues.