1,159 results match your criteria: "Graduate School of Dental Medicine[Affiliation]"

Eldecalcitol ameliorates diabetic osteoporosis and glucolipid metabolic disorder by promoting Treg cell differentiation through SOCE.

Cell Mol Life Sci

October 2024

Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Shandong University, No.44-1 Wenhua Road West, Jinan, Shandong, 250012, China.

Active vitamin D, known for its role in promoting osteoporosis, has immunomodulatory effects according to the latest evidence. Eldecalcitol (ED-71) is a representative of the third-generation novel active vitamin D analogs, and its specific immunological mechanisms in ameliorating diabetic osteoporosis remain unclear. We herein evaluated the therapeutic effects of ED-71 in the context of type 2 diabetes mellitus (T2DM), delving into its underlying mechanisms.

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Patients with Taste Disorders in a Hospital's Dental Department and Strategies for Taste Disorders.

Biomedicines

September 2024

Department of Oral Diagnosis and Medicine, Faculty of Dental Medicine, Graduate School of Dental Medicine, Hokkaido University, Kita-13 Nishi-7, Kita-ku, Sapporo 060-8586, Japan.

Article Synopsis
  • A retrospective study analyzed 322 taste disorder patients at Hokkaido University Hospital from 2007 to 2018, focusing on their clinical characteristics.
  • The study identified 154 cases of quantitative taste disorders (like taste loss) and 168 cases of qualitative disorders (like abnormal tastes), with no significant link to the patient's sex.
  • Most taste disorders were found to be psychogenic, idiopathic, or linked to oral diseases, highlighting that about 20% are caused by oral issues that can be treated to improve taste function.
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Effectiveness of tranexamic acid on intra- and postoperative bleeding in Bimaxillary osteotomies: a retrospective study.

Oral Maxillofac Surg

December 2024

Department of Dental Anesthesiology, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Kita-13, Nishi-7, Kita-ku, Sapporo, 060-8586, Hokkaido, Japan.

Purpose: Perioperative bleeding is a serious concern during orthognathic surgery. Tranexamic acid (TXA), a synthetic lysine analog with antifibrinolytic properties, reduces blood loss across various surgical fields. This study aimed to investigate the effectiveness of preoperative TXA administration in reducing intraoperative and postoperative blood loss following combined Le Fort I and sagittal split ramus osteotomies at our hospital.

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The impact of preoperative psychiatric intervention for postoperative delirium after major oral and maxillofacial surgery with free flap reconstruction.

J Stomatol Oral Maxillofac Surg

August 2024

Department of Dental Anesthesiology, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Hokkaido, Japan. Electronic address:

Article Synopsis
  • Postoperative delirium (POD) is a serious complication mainly affecting older patients, leading to various negative outcomes, and early identification of those at risk is crucial for prevention.
  • A study conducted on 86 patients undergoing major oral and maxillofacial surgery between 2016 and 2023 aimed to evaluate the impact of preoperative psychiatric interventions on preventing POD.
  • The results showed that preoperative psychiatric interventions did not significantly reduce the incidence of POD, which was found to be 29.1%, indicating a need for further research on the effectiveness of these interventions.
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Conventional gingivoperiosteoplasty (GPP) performed during infancy adversely affects maxillary development. However, the outcomes of this procedure in early childhood have rarely been reported. Therefore, we examined the postoperative outcomes of GPP conducted in patients aged 1.

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PLAG1 overexpression in salivary gland duct-acinar units results in epithelial tumors with acinar-like features: Tumorization of luminal stem/progenitor cells may result in the development of salivary gland tumors consisting of only luminal cells.

J Oral Biosci

December 2024

Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan; Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan. Electronic address:

Objectives: Details about salivary gland tumor histogenesis remain unknown. Here, we established a newly generated murine salivary gland tumor model that could overexpress pleomorphic adenoma gene 1 (PLAG1) and attempted to clarify the events that occur during the early phase of salivary gland tumor histogenesis.

Methods: Salivary gland tumors were generated using murine models (Sox9IRES-CreERT2; ROSA26-PLAG1).

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Correction: Beyond starving cancer: anti-angiogenic therapy.

J Med Ultrason (2001)

October 2024

Vascular Biology and Molecular Pathology, Faculty and Graduate School of Dental Medicine, Hokkaido University, N13 W7 Kita-Ku, Sapporo, 060-8586, Japan.

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Evaluation of a Novel Immunochromatographic Device for Detecting in Patients with Periodontal Disease.

Int J Mol Sci

July 2024

Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu 803-8580, Fukuoka, Japan.

is the most pathogenic periodontal bacterium in the world. Recently, has been considered responsible for dysbiosis during the development of periodontitis. This study aimed to evaluate a novel immunochromatographic device using monoclonal antibodies against in subgingival plaques.

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Article Synopsis
  • - Multinucleated microglia, typically seen in infection, inflammation, and aging, may actually help clear brain debris due to their larger size and enhanced phagocytic capabilities, prompting a reevaluation of their role in diseases.
  • - Researchers inhibited Pyk2 activity with PF-431396 to promote the formation of multinucleated microglia, finding that these cells were more effective at engulfing β-amyloid oligomers and showed increased lysosomal activity, indicating improved debris clearance.
  • - In a mouse model of Alzheimer's, inhibiting Pyk2 led to increased microglial migration towards amyloid deposits and reduced inflammation in human microglia, positioning Pyk2 as a potential therapeutic target for neuro
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Aim: Malnutrition is a prevalent health issue among hemodialysis patients. Oral frailty, a condition characterized by impairments in multiple oral health aspects and functions, has been associated with nutritional status in the general population. We aimed to determine whether oral frailty was associated with nutritional status in hemodialysis patients aged ≥50 years.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of model-based deep learning reconstruction (DL-DWI) in improving prostate diffusion-weighted imaging (DWI) compared to traditional parallel imaging (PI-DWI).
  • Researchers analyzed 32 patients with prostate cancer and found that DL-DWI significantly outperformed PI-DWI in terms of image quality, as shown by both qualitative and quantitative measures.
  • The results indicated that DL-DWI provided better signal-to-noise ratio, contrast-to-noise ratio, and diffusion coefficient values for prostate tissues and lesions; however, the study lacked comparisons with other deep learning methods, highlighting a need for future research.
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Compositional Data and Microbiota Analysis: Imagination and Reality.

Microorganisms

July 2024

Oral Diagnosis and Medicine, Faculty of Dental Medicine, Graduate School of Dental Medicine, Hokkaido University, Kita-13 Nishi-7, Kita-ku, Sapporo 060-8586, Japan.

The relationships among bacterial flora, diseases, and diet have been described by many authors. An operational taxonomic units (OTUs) are the result of clustering the 16S rRNA gene sequences at a certain cutoff value, and they are considered compositional data. As Pearson's correlation coefficient is difficult to interpret, Aitchison's ratio analysis was used to develop a method to handle compositional data.

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Background/purpose: The dental adhesive market is constantly evolving to meet the demands of dentists and patients, but new products and upgrades should be rigorously evaluated before being used in clinical practice. This study investigated the physicomechanical properties and dentin bonding efficacy of a newly upgraded universal adhesive compared to its predecessor.

Materials And Methods: Twenty-four molars were divided into four groups (n = 6/group) based on adhesive (new vs.

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Background/purpose: Persistent activation of myofibroblasts is attributed to various dysregulated biological events conferring multiple types of fibrosis diseases, including oral submucous fibrosis (OSF). Although the significance of non-coding RNAs (ncRNAs) in the occurrence of fibrosis has been appreciated, the detailed mechanisms still have not been fully elucidated. The aim of this study was to identify key dysregulated ncRNAs and elucidate their pro-fibrotic mechanisms in promoting myofibroblast activation and the pathological development of OSF.

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Tumor blood vessels are highly leaky in structure and have poor blood perfusion, which hampers infiltration and function of CD8T cells within tumor. Normalizing tumor vessels is thus thought to be important in promoting the flux of immune T cells and enhancing ant-tumor immunity. However, how tumor vasculature is normalized is poorly understood.

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Nonspecific inflammatory pseudotumor of the maxillary and temporal fossa: a study of seven cases.

Oral Surg Oral Med Oral Pathol Oral Radiol

October 2024

Department of Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan.

Objective: Inflammatory pseudotumor (IPT) is a rare, locally aggressive, benign neoplasm of unknown etiology. Because of its aggressive clinical behavior and locally destructive or infiltrative features, it may be mistaken for a malignant tumor. Approximately 5%-44% of extrapulmonary IPT occur in the head and neck, primarily affecting the orbit.

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Cases of relatively safe dental implant treatment in patients with low-volume bisphosphonate (BP) have been gradually reported. Although bone augmentation is commonly used when the bone volume is insufficient for implant placement, the studies and case reports regarding the safety of bone augmentation in patients treated with BP remain insufficient. Herein, we report a case wherein bone augmentation was performed after BP treatment with bone healing realized according to imaging, and we review the literature regarding BP and bone augmentation.

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Background And Aims: Serum markers capable of detecting mild levels of undernutrition, such as insufficient dietary protein intake (IDPI), have not been established among community-dwelling older adults. Although the serum albumin redox state, expressed as the ratio of reduced albumin (Alb) to total Alb (the reduced albumin ratio), has the potential to overcome this challenge, empirical epidemiological data are lacking. This study aimed to investigate the association between a serum reduced Alb ratio and dietary protein intake among community-dwelling older adults.

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Article Synopsis
  • The study investigated how parathyroid hormone (PTH) affects bone formation in different parts of the femur in mice, focusing on whether it promotes remodeling or modeling.
  • Mice were divided into groups that either received PTH (administered twice or four times a day) or a control treatment, and various markers were analyzed to see how bone cells responded in the trabecular regions near and far from the chondro-osseous junction (COJ).
  • Results indicated that PTH enhances remodeling near the COJ while promoting modeling in distant regions, and it also aids the transformation of osteoblasts into osteocytes during both processes.
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Synthesis and evaluation of fluorescent resins with europium-β-diketonate complex for orthodontic use.

Dent Mater J

July 2024

Department of Biomedical Materials and Engineering, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University.

No effective technique exists for removing adhesive remnants following bracket debonding. We propose that fluorescence imaging using europium ions (Eu) offers an effective solution for minimizing iatrogenic enamel damage. This study aimed to assess the impact of different mixing ratios of monomer mixtures on the photoluminescence and flexural properties of a newly developed fluorescent adhesive.

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Near-infrared light-boosted antimicrobial activity of minocycline/hyaluronan/carbon nanohorn composite toward peri-implantitis treatments.

Nanoscale

July 2024

Department of Oral Functional Prosthodontics, Faculty of Dental Medicine, Graduate school of Dental Medicine, Hokkaido University, Kita-13, Nishi-7, Sapporo 060-8586, Japan.

Dental implant therapy is a reliable treatment for replacing missing teeth. However, as dental implants become more widely used, peri-implantitis increasingly has become a severe complication, making successful treatment more difficult. As a result, the development of effective drug delivery systems (DDSs) and treatments for peri-implantitis are urgently needed.

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Background: As infrequent social interaction is a potential risk of dementia, oral malodor may increase the risk of dementia, including Alzheimer's disease.

Objective: This study investigated the association between malodor and dementia.

Methods: We used the Japan Public Health Center-based Prospective Study data obtained at Yokote City.

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Objects: This study aimed to determine the association between annual medical expenses and oral frailty in later-stage older adults (aged ≥ 75 years). No studies have investigated the association between medical costs and oral frailty, which would elucidate the association between oral frailty and the deterioration of mental and overall physical function.

Materials And Methods: In this cross-sectional study, 2190 adults (860 men and 1330 women aged 75-94 years) covered by the Medical System for the Elderly and residing in Tottori Prefecture, Japan, between April 2016 and March 2019, were included.

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