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Key bacteria decomposing animal and plant detritus in deep sea revealed via long-term incubation in different oceanic areas.
ISME Commun
January 2024
Key Laboratory of Marine Genetic Resources, Ministry of Natural Resources of PR China, 178 Daxue Road, Siming District, Xiamen City, Fujian Province 361005, PR China.
Transport of organic matter (OM) occurs widely in the form of animal and plant detritus in global oceans, playing a crucial role in global carbon cycling. While wood- and whale-falls have been extensively studied, the process of OM remineralization by microorganisms remains poorly understood particularly in pelagic regions on a global scale. Here, enrichment experiments with animal tissue or plant detritus were carried out in three deep seas for 4-12 months using the deep-sea incubators.
View Article and Find Full Text PDFOcean acidification and global warming may favor blue carbon service in a Cymodocea nodosa community by modifying carbon metabolism and dissolved organic carbon fluxes.
Mar Pollut Bull
January 2025
Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEI·MAR), Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain.
Ocean acidification (OA) and global warming (GW) drive a variety of responses in seagrasses that may modify their carbon metabolism, including the dissolved organic carbon (DOC) fluxes and the organic carbon stocks in upper sediments. In a 45-day full-factorial mesocosm experiment simulating forecasted CO and temperature increase in a Cymodocea nodosa community, we found that net community production (NCP) was higher under OA conditions, particularly when combined with warming (i.e.
View Article and Find Full Text PDFAmelogenin-Derived Peptide-Modified Poly(amidoamine) Dendrimers for Root Caries Prevention.
ACS Appl Mater Interfaces
January 2025
Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, Beijing 100081, China.
Article Synopsis
- Root caries pose a significant challenge in dentistry, requiring effective noninvasive preventive strategies due to poor outcomes of current restorative treatments.
- Researchers developed PAMAM-C11, a modified peptide that binds to hydroxyapatite to prevent demineralization in caries lesions and combat periodontal destruction, enhancing mineralization and resisting washout.
- PAMAM-C11 also protects against enzymatic breakdown in dentin, supports the growth of important stem cells for periodontal repair, and showed promising results in an in vivo rat model, suggesting its potential for clinical use in preventing root caries.
Targeted enamel remineralization with mineral-loaded starch particles.
JADA Found Sci
November 2024
GreenMark Biomedical Inc, East Lansing and Ann Arbor, MI.
Background: Noninvasive caries treatments work topically, which may limit efficacy. The authors hypothesized that an alternative approach using mineral-loaded particles designed to target the subsurface of noncavitated caries lesions could be advantageous. This study shows in vitro proof-of-concept.
View Article and Find Full Text PDFAssessment of Vitamin E and Glutathione Peroxidase Levels in Salivary Samples of Children With and Without Dental Caries in Erbil City, Iraq.
Cureus
November 2024
Dental Public Health, Kurdistan Higher Council of Medical Specialties, Erbil, IRQ.
Introduction: According to the classic understanding of the etiology of dental caries, an imbalance between demineralization and remineralization in the oral cavity is important. Salivary antioxidants, including glutathione peroxidase and vitamin E, can modulate oxidative stress.
Methods: This cross-sectional study evaluated the levels of glutathione peroxidase and vitamin E in the saliva of 90 children from Erbil City.
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