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Light and dark biofilm adaptation impacts larval settlement in diverse coral species.
Environ Microbiome
January 2025
Australian Centre for Ecogenomics, School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, Australia.
Background: Recovery of degraded coral reefs is reliant upon the recruitment of coral larvae, yet the mechanisms behind coral larval settlement are not well understood, especially for non-acroporid species. Biofilms associated with reef substrates, such as coral rubble or crustose coralline algae, can induce coral larval settlement; however, the specific biochemical cues and the microorganisms that produce them remain largely unknown. Here, we assessed larval settlement responses in five non-acroporid broadcast-spawning coral species in the families Merulinidae, Lobophyllidae and Poritidae to biofilms developed in aquaria for either one or two months under light and dark treatments.
View Article and Find Full Text PDFMechanical Wear of Degraded Articular Cartilage.
Ann Biomed Eng
January 2025
School of Mechanical Engineering, Purdue University, West Lafayette, IN, 47907, USA.
Purpose: To evaluate the mechanical wear of cartilage with different types of degradation.
Methods: Bovine osteochondral explants were treated with interleukin-1β (IL-1β) to mimic inflammatory conditions, with chondroitinase ABC (ChABC) to specifically remove glycosaminoglycans (GAGs), or with collagenase to degrade the collagen network during 5 days of culture. Viscoelastic properties of cartilage were characterized via indentation.
Biomarkers and Social Determinants in atherosclerotic Arterial Diseases: A Scoping Review.
Ann Vasc Surg
January 2025
Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, 88100, Catanzaro, Italy; Interuniversity Center of Phlebolymphology (CIFL), "Magna Graecia" University, 88100 Catanzaro, Italy. Electronic address:
Background: Arterial diseases like coronary artery disease, carotid stenosis, peripheral artery disease, and abdominal aortic aneurysm have high morbidity and mortality, making them key research areas. Their multifactorial nature complicates patient treatment and prevention. Biomarkers offer insights into the biochemical and molecular processes, while social factors also significantly impact patients' health and quality of life.
View Article and Find Full Text PDFColistin antibacterial activity, clinical effectiveness, and mechanisms of intrinsic and acquired resistance.
Microb Pathog
January 2025
Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic address:
Following a period of disuse owing to the emergence of multidrug-resistant Gram-negative bacteria, colistin has regained global attention as an antibiotic of last resort. The resurgence in its utilization has led to a concurrent increase in acquired resistance, presenting a significant challenge in clinical treatment. Predominantly, resistance mechanisms involve alterations in the lipid A component of the lipopolysaccharide (LPS) structure.
View Article and Find Full Text PDFAllergen-induced activation of epithelial P2Y receptors promotes ATP exocytosis and type 2 immunity in airways.
J Allergy Clin Immunol
January 2025
Departments of Animal Science, Integrative Biology and Physiology, University of Minnesota,St. Paul, MN, 55108. Electronic address:
Background: Environmental allergens induce the release of danger signals from the airway epithelium that trigger type 2 immune responses and promote airway inflammation.
Objective: To investigate the role of allergen-stimulated P2Y receptor activation in regulating ATP, IL-33 and DNA release by human bronchial epithelial (hBE) cells and mouse airways.
Methods: hBE cells were exposed to Alternaria alternata extract and secretion of ATP, IL-33 and DNA were studied in vitro.
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