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This study aimed to analyze effect of physical exercise in hemogasometric and electrolytic profiles of young Mangalarga Marchador horses beginning training for gait competitions. Six Mangalarga Marchador gaited horses with 6 months of training were evaluated. The ages ranged from three and a half to five years and included four stallions and two mares, with mean (±S.D.) body weight of 435±30Kg. Venous blood samples were collected from the horses, rectal temperature and HR were measured before and immediately after the gait test, and blood samples were used for hemogasometric and laboratory analyses. The Wilcoxon signed-rank test was used in the statistical analysis, assigning statistical significance for values of (p ≤ .05). Physical effort significantly affected HR (p ≤ .027), temperature (T) (p ≤ .028), oxygen pressure (pO 2 ) (p ≤ .027), oxygen saturation (sO 2 ) (p ≤ .046), calcium (Ca 2+ ) (p ≤ .046), and glucose levels (GLI) (p ≤ .028). The heart rate, temperature, and pO 2, sO 2 , Ca 2+ , and glucose levels were affected by exercise. There was no considerable dehydration in these horses, making it clear that, at this level of effort, they did not enter a state of, indicating that the animals, even young horses, were well conditioned to the submaximal effort required in gaiting tests. The horses showed good adaptation to exercise and did not enter a state of fatigue with the effort made, indicating that the animals in this study received adequate training and could perform the type of exercise proposed, characterized by a submaximal effort., Competing Interests: Declaration of Competing Interest The authors declare no conflict of interest., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Purpose: To assess the Pictor Plus portable noncontact ophthalmic camera for use in diagnosis of severe retinopathy of prematurity (ROP) and its feasibility for telemedicine applications, especially in developing countries., Methods: A cross-sectional study was conducted from April 2018 to December 2019 in six public neonatal care centers in the state of Rio de Janeiro. Observer 1 performed the examination with a binocular indirect ophthalmoscope and subsequently captured a digital image using the Pictor Plus camera. These images were analyzed by observers 2 and 3, who were masked to the results recorded by observer 1., Results: The convenience sample was 200 premature newborns (n = 712 eyes) with a birthweight of ≤1,500 g or gestational age at birth of ≤32 weeks. The sensitivity of Pictor Plus digital images for the diagnosis of plus or pre-plus disease was 65.8% for observer 2 and 63.2% for observer 3; the specificity, 100% and 98,4%, respectively. Interobserver agreement analysis for image reading compared to observer 1 indirect ophthalmoscopy showed kappa coefficients of 0.77 (observer 2) and 0.68 (observer 3)., Conclusions: In our study cohort, the Pictor Plus, a relatively low-cost camera, was effective in facilitating accurate diagnosis of ROP., (Copyright © 2022 American Association for Pediatric Ophthalmology and Strabismus. Published by Elsevier Inc. All rights reserved.)