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Hooked on fish blood: the reliance of a gill parasite on haematophagy.
Proc Biol Sci
October 2024
Fish Pathology Group, Institute of Aquaculture Torre de la Sal (IATS, CSIC), Consejo Superior de Investigaciones Científicas, Castellón, Spain.
Parasitism involves diverse evolutionary strategies, including adaptations for blood feeding, which provides essential nutrients for growth and reproduction. (Polyopisthocotyla: Microcotylidae), an ectoparasitic flatworm, infects the gills of gilthead seabream (), significantly affecting fish health, welfare and Mediterranean cage farm profitability. Despite its impact, limited information exists on its feeding behaviour.
View Article and Find Full Text PDFAccelerometer-derived sleep metrics in adolescents reveal shared genetic influences with obesity and stress in a Brazilian birth cohort study.
Sleep
January 2025
Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, RS, Brazil.
We aimed to test the association between sleep-related polygenic scores (PGSs) and accelerometer-based sleep metrics among Brazilian adolescents and to evaluate potential mechanisms underlying the association through the enrichment of obesity, and cortisol pathway-specific polygenic scores (PRSet). Utilizing data from The 2004 Pelotas (Brazil) Birth Cohort, sleep time window and sleep efficiency were measured at the 11-year-old follow-up using ActiGraph accelerometers. Three sleep PGSs were developed based on the most recent genome-wide association study of accelerometer-based sleep measures.
View Article and Find Full Text PDFPhysiology, gene expression, and behavior as potential indicators of oxidative stress in piglets.
BMC Vet Res
October 2024
Department of Animal and Food Science, Universitat Autònoma de Barcelona, Edifici V, Travessera dels Turons, Cerdanyola del Valles, 08193, Spain.
The goal of the current study was to develop a pig model to investigate oxidative stress with a low negative impact on piglet welfare. Four independent trials (A, B, C, and D) were performed using a single intraperitoneal shot of lipopolysaccharide (LPS) as an immune challenge, aiming to assess the minimal LPS dose for piglets of different age to trigger a measurable acute oxidative stress response in healthy animals. In trial A, piglets received an LPS dose of 25 µg/KgBW at 41 days post-weaning (p.
View Article and Find Full Text PDFSphingosine-1-phosphate receptor type 4 is critically involved in the regulation of peritoneal B-1 cell trafficking and distribution in vivo.
Eur J Immunol
December 2024
Experimental Surgical Research Laboratory, Department of General Surgery, Visceral, Thoracic and Vascular Surgery, Universitätsmedizin Greifswald, Greifswald, Germany.
B-1 cells are crucially involved in immune defense and regulation of inflammation and autoimmunity. B-1 cells are predominantly located in the peritoneal and pleural cavities, although body cavity B-1 cells recirculate systemically under steady-state conditions. The chemokines CXCL12 and CXCL13 have been identified as the main regulators of peritoneal B-cell trafficking.
View Article and Find Full Text PDFHarnessing Machine Learning to Uncover Hidden Patterns in Azole-Resistant CYP51/ERG11 Proteins.
Microorganisms
July 2024
Faculdade de Ciências Farmacêuticas de Ribeirao Preto, Universidade de São Paulo, Ribeirão Preto 14040-903, SP, Brazil.
Fungal resistance is a public health concern due to the limited availability of antifungal resources and the complexities associated with treating persistent fungal infections. Azoles are thus far the primary line of defense against fungi. Specifically, azoles inhibit the conversion of lanosterol to ergosterol, producing defective sterols and impairing fluidity in fungal plasmatic membranes.
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