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Effect of the S100A9/AMPK pathway on PM2.5-mediated mouse lung injury.

Iran J Basic Med Sci

January 2025

Graduate school, Shenyang Medical College, Shenyang. No. 146, Huanghe North Street, Shenyang, People's Republic of China.

Objectives: Particulate matter 2.5 (PM2.5), particles with an aerodynamic diameter less than 2.

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Chewing-Activated TRPV4/PIEZO1--Zn Axes in a Rat Periodontal Complex.

J Dent Res

January 2025

Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California, San Francisco, CA, USA.

The upstream mechanobiological pathways that regulate the downstream mineralization rates in periodontal tissues are limitedly understood. Herein, we spatially colocalized and correlated compression and tension strain profiles with the expressions of mechanosensory ion channels (MS-ion) TRPV4 and PIEZO1, biometal zinc, mitochondrial function marker (), cell senescence indicator (), and oxygen status marker hypoxia-inducible factor-1α () in rats fed hard and soft foods. The observed zinc and related cellular homeostasis in vivo were ascertained by TRPV4 and PIEZO1 agonists and antagonists on human periodontal ligament fibroblasts ex vivo.

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Impact of variations in airborne microbiota on pneumonia infection: An exploratory study.

Ecotoxicol Environ Saf

January 2025

National Human Diseases Animal Model Resource Center, National Center of Technology Innovation for animal model, State Key Laboratory of Respiratory Health and Multimorbidity, NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious Diseases, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, Institute of Laboratory Animal Science, CAMS & PUMC, Beijing, China. Electronic address:

Background: Previous studies showed airborne bacteria affect pneumonia incidence, but specific impacts of bacterial communities on Klebsiella pneumoniae infection were unknown.

Methods: Five different ratios of bacterial community structures were randomly generated. Mice were divided into control, artificial bacterial community exposure, and corresponding Klebsiella pneumoniae challenge groups.

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Aims And Background: The study of the morphology of soft tissues as well as hard tissues of the orofacial region holds prime importance. A very less information is known about the lips (soft tissues) and maxillo-mandibular arches (hard tissue structures) in primary dentition. Henceforth, there is a need to classify, find the prevalence and correlation of various lip shapes, and arch forms in primary dentition.

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Background And Objectives: Gingivitis and periodontitis are common periodontal diseases that can significantly harm overall oral health, affecting the teeth and their supporting tissues, along with the surrounding anatomical structures, and if left untreated, leading to the total destruction of the alveolar bone and the connective tissues, tooth loss, and other more serious systemic health issues. Numerous studies have shown that propolis can help reduce gum inflammation, inhibit the growth of pathogenic bacteria, and promote tissue regeneration, but with varying degrees of success reported. For this reason, this comprehensive systematic review aims at finding out the truth concerning the efficacy of propolis mouthwashes in treating gingivitis and periodontitis, as its main objective.

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