Fluoride-induced toxicity (fluorosis) poses a significant health concern globally, affecting millions of individuals. Understanding the molecular mechanisms underlying fluorosis, particularly the role of microRNAs (miRNAs), is crucial for developing effective preventive and therapeutic strategies. This review explores the pivotal role of miRNAs in the pathogenesis of fluorosis, particularly examining its impact on both hard (skeletal and dental) and soft (brain, liver, kidney, heart, and reproductive organs) tissues. Skeletal fluorosis manifests as abnormal bone mineralization and structure, while dental fluorosis affects enamel formation. In vitro and in vivo studies suggest a significant involvement of miRNAs in the progression of these conditions. For skeletal fluorosis, miR-124, miR-155, and miR-200c-3p have been identified as key regulators, while miR-296-5p and miR-214-3p are implicated in dental fluorosis. Moreover, soft tissue fluorosis encompasses a spectrum of adverse effects on various organs, including the brain, liver, kidneys, heart, and reproductive system. In soft tissues, miRNAs, such as miR-124, miR-200c-3p, miR-132, and miR-34b-5p, have been linked to cellular damage and dysfunction. Notably, miRNAs exert their effects through the modulation of critical pathways involved in fluorosis pathology, including Wnt signaling, apoptosis, cell cycle, and autophagy. Understanding the regulatory roles of miRNAs in fluorosis pathogenesis holds promise for identifying biomarkers and therapeutic targets. However, further research is needed to elucidate the molecular mechanisms underlying miRNA-mediated responses to fluoride exposure. Integration of miRNA research into fluorosis studies could facilitate the development of diagnostic tools and therapeutic interventions, thus mitigating the detrimental effects of fluorosis on both hard and soft tissues.
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http://dx.doi.org/10.1007/s00204-024-03853-9 | DOI Listing |
J Transl Med
December 2024
Stomatology Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, China.
Periodontal ligament fibroblasts (PDLFs) play a crucial role in the etiology of periodontitis and periodontal tissue regeneration. In healthy periodontal tissues, PDLFs maintain the homeostasis of periodontal soft and hard tissues as well as the local immune microenvironment. PDLFs also have the potential for multidirectional transdifferentiation and are involved in periodontal tissue regeneration.
View Article and Find Full Text PDFMed Klin Intensivmed Notfmed
December 2024
Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Deutschland.
J Stomatol Oral Maxillofac Surg
December 2024
Face Ahead® Surgicenter, Belgium and Ziekenhuis aan de Stroom, Campus GZA, B-2018, Antwerp, Belgium. Electronic address:
Objective: This expert opinion presents provisional guidelines for addressing complications associated with Additively Manufactured Subperiosteal Jaw Implants (AMSJI®) in patients with severe maxillary atrophy. AMSJI®'s custom design, supported by finite element analysis (FEA), allows precise placement that avoids critical anatomical structures and minimizes complications relative to alternative solutions.
Materials And Methods: Data were gathered through firsthand experiences, direct communications, and insights from international workgroup meetings.
J Infect Public Health
December 2024
Department of Infectious Diseases and Child Neurology, Institute of Paediatrics, Poznan University of Medical Sciences, Poland.
Background: Group A Streptococci (GAS) may cause infections of the pharynx and soft tissues and invasive infections in children (iGAS). A significant increase in severe iGAS infections has been reported in Europe since the fall of 2022.
Objectives: This retrospective study aims to analyse clinical data of children with invasive and non-invasive GAS infections in the post-COVID-19 pandemic era, searching for predisposing factors to developing invasive infections.
Cancer Immunol Immunother
December 2024
Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands.
Synovial sarcoma is an aggressive soft-tissue cancer that shows limited responses to current immunotherapeutic approaches using immune checkpoint blockade or adoptive cell therapy. To improve immunotherapy for this cancer, understanding how the immune cells in the tumor microenvironment associate with histological subtype, disease progression and current therapies is vital. To evaluate the immune infiltrate in synovial sarcoma in relation to histological subtype, disease progression and in response to cytotoxic treatment, we performed immunodetection of T cells, CD68 myeloid cells, endothelial cells and keratin on a series of 41 synovial sarcoma patients at various stages of disease.
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