Publications by authors named "O E Ortiz"
Three unsymmetric fluorophores differing in their flanking electron acceptor (-NO, -CN, -CHO) were investigated for their electrofluorochromism and electrochromism. The emission yield of the -NO substituted fluorophore in the solid state was ca. 9-fold less than its -CN and -CHO counterparts.
View Article and Find Full Text PDFRegional variations in glutamate levels across the cingulate cortex, decreasing rostral to caudal, have been observed previously in healthy volunteers with proton magnetic resonance spectroscopy (H-MRS) at 7 T. This study sought to explore cingulate cortex glutamate trends further by investigating whether a similar gradient could be detected at 3 T, the effect of sex, as well as whether individual variations gave rise to more than one regional glutamate pattern. H-MRS at 3 T [Phillips Elition; semi-localization by adiabatic selective refocusing, echo time (TE)/repetition time (TR) = 32/5,000] was acquired in four cingulate regions: the anterior, midanterior, midposterior, and posterior cortices, in 50 healthy participants (26 F) scanned at a fixed time of day and with controlled food intake.
View Article and Find Full Text PDFArticle Synopsis
- - Granulomatosis with Polyangiitis (GPA) is a systemic vasculitis affecting small to medium blood vessels, primarily impacting the upper airway, lungs, and kidneys, with rare cardiac involvement.
- - A 49-year-old male with a history of GPA presented with shortness of breath, low output symptoms, an extremely low heart rate, and specific ECG changes indicating advanced heart block issues.
- - The case emphasizes the uncommon cardiac complications of GPA, highlighting the need for awareness and consideration of management strategies for patients with this condition experiencing heart-related issues.