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Oral microbiota among treatment-naïve adolescents with depression: A case-control study.
J Affect Disord
January 2025
Department of Psychiatry, Fundamental and Clinical Research on Mental Disorders Key Laboratory of Luzhou, Laboratory of Neurological Diseases & Brain Function, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, China; Zigong Affiliated Hospital of Southwest Medical University, Zigong Institute of Brain Science, Zigong, Sichuan Province, China; Central Nervous System Drug Key Laboratory of Sichuan Province, Luzhou, Sichuan Province, China. Electronic address:
Background: Adolescent depression has profound impacts on physical, cognitive, and emotional development. While gut microbiota changes have been linked to depression, the relationship between oral microbiota and depression remains elusive. Our study aims to investigate the oral microbiota in treatment-naïve adolescents experiencing depression and examine their potential associations with cognitive function.
View Article and Find Full Text PDFMetabolic activity controls the emergence of coherent flows in microbial suspensions.
Proc Natl Acad Sci U S A
January 2025
Experimental Physics V, Department of Physics, University of Bayreuth, D-95447 Bayreuth, Germany.
Photosynthetic microbes have evolved and successfully adapted to the ever-changing environmental conditions in complex microhabitats throughout almost all ecosystems on Earth. In the absence of light, they can sustain their biological functionalities through aerobic respiration, and even in anoxic conditions through anaerobic metabolic activity. For a suspension of photosynthetic microbes in an anaerobic environment, individual cellular motility is directly controlled by its photosynthetic activity, i.
View Article and Find Full Text PDFUnveiling the P-solubilizing potential of bacteria enriched from natural colonies of Red Sea Trichodesmium spp.
Sci Total Environ
January 2025
The Interuniversity Institute for Marine Sciences in Eilat, Eilat, Israel; The Fredy and Nadine Herrmann Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem, Israel.
Phosphorus (P) is pivotal for all organisms, yet its availability is, particularly in the marine habitat, limited. Natural, puff-shaped colonies of Trichodesmium, a genus of diazotrophic cyanobacteria abundant in the Red Sea, have been demonstrated to capture and centre dust particles. While this particle mining strategy is considered to help evade nutrient limitation, details behind the mechanism remain elusive.
View Article and Find Full Text PDFERK activation waves coordinate mechanical cell competition leading to collective elimination via extrusion of bacterially infected cells.
Cell Rep
January 2025
Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, 72076 Tübingen, Baden-Württemberg, Germany; Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, 72076 Tübingen, Baden-Württemberg, Germany. Electronic address:
Epithelial cells respond to infection with the intracellular bacterial pathogen Listeria monocytogenes by altering their mechanics to promote collective infected cell extrusion (CICE) and limit infection spread across cell monolayers. However, the underlying biochemical pathways remain elusive. Here, using in vitro (epithelial monolayers) and in vivo (zebrafish larvae) models of infection with L.
View Article and Find Full Text PDFProtists as mediators of complex microbial and viral associations.
bioRxiv
December 2024
DOE Joint Genome Institute, Berkeley, California, USA.
Microbial eukaryotes (aka protists) are known for their important roles in nutrient cycling across different ecosystems. However, the composition and function of protist-associated microbiomes remains largely elusive. Here, we employ cultivation-independent single-cell isolation and genome-resolved metagenomics to provide detailed insights into underexplored microbiomes and viromes of over 100 currently uncultivable ciliates and amoebae isolated from diverse environments.
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