2,328 results match your criteria: "Nippon Dental University[Affiliation]"

Background: First-time traumatic anterior shoulder dislocation (FASD) is a common trauma associated with shoulder dysfunction. Although several randomized controlled trials have compared conservative and surgical treatments for FASD, the comparative efficacy of these treatments is poorly understood. In this network meta-analysis (NMA), we compared the available evidence on the efficacy of various interventions in patients with FASD.

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The aim of this study was to develop an optimal, simple, and lightweight deep learning convolutional neural network (CNN) model to detect the presence of mesiodens on panoramic radiographs. A total of 628 panoramic radiographs with and without mesiodens were used as training, validation, and test data. The training, validation, and test dataset were consisted of 218, 51, and 40 images with mesiodens and 203, 55, and 61 without mesiodens, respectively.

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Intracellular signaling pathways involved in the regulation of gene expression by pilocarpine.

J Oral Biosci

December 2024

Course of Clinical Science, Field of Oral and Maxillofacial Surgery and Systemic Medicine, Oral and Maxillofacial Surgery, Graduate School of Life Dentistry at Niigata, The Nippon Dental University, Japan; Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University, Japan.

Objectives: Pilocarpine is commonly used clinically to treat dry mouth. The long-term administration of pilocarpine reportedly improves salivary secretion more effectively than short-term administration. Therefore, we hypothesized that pilocarpine alters gene expression in salivary glands via muscarinic receptor stimulation.

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Factors involved in picky eating in children with disabilities visiting outpatient clinics to receive feeding therapy.

Spec Care Dentist

November 2024

Division of Rehabilitation for Speech and Swallowing Disorders, Tama Oral Rehabilitation Clinic, The Nippon Dental University, Tokyo, Japan.

Article Synopsis
  • - This study explored the reasons behind picky eating in 242 children aged 3-6 with disabilities, particularly focusing on how their primary disease and oral abilities affect their eating habits.
  • - It was found that factors such as the type of primary disease, nutritional methods employed, and oral hypersensitivity were significantly linked to picky eating issues.
  • - Results indicated that picky eating is influenced by the specific characteristics of a child's illness and their sensitivity to different textures or sensations while eating, often necessitating alternative feeding methods like tube feeding.
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Purpose: This study was conducted to identify the typical sites and patterns of peri-implant bone defects on cone-beam computed tomography (CBCT) images, as well as to evaluate the detectability of the identified bone defects on panoramic images.

Materials And Methods: The study population included 114 patients with a total of 367 implant fixtures. CBCT images were used to assess the presence or absence of bone defects around each implant fixture at the mesial, distal, buccal, and lingual sites.

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Presenilin deficiency enhances tau phosphorylation and its secretion.

J Neurochem

September 2024

Department of Biochemistry, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan.

Alzheimer's disease (AD) is characterized by the accumulation of abnormally folded amyloid β-protein (Aβ) in the brain parenchyma and phosphorylated tau in neurons. Presenilin (PS, PSEN) 1 and PS2 are essential components of γ-secretase, which is responsible for the cleavage of amyloid precursor protein (APP) to generate Aβ. PSEN mutations are associated with tau aggregation in frontotemporal dementia, regardless of the presence or absence of Aβ pathology.

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Background: Few reported studies evaluate the status of those who have a family dentist (FD) by regional differences and the socioeconomic factors associated with this status. This study aimed to assess the prevalence of having an FD among Japanese individuals across three samples of municipality type: urban, intermediate, and rural areas, and determine the factors associated with having an FD.

Methods: This was a cross-sectional study involving a web-based survey.

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This study aimed to elucidate the relationship between joint structures of the first tarsometatarsal and articular facet degeneration. A total of 100 feet from 50 cadavers were examined. The articular facets of the first metatarsal and medial cuneiform were categorized into four types based on the superior and inferior facets' separation, and the formation of the inferior lateral facet on the lateral plantar prominence: Type I, a single facet with no separation or inferior lateral facet; Type II-a, two facets with separation but no inferior lateral facet; Type II-b, two facets, no separation, but with an inferior lateral facet; Type III, three facets with separation and an inferior lateral facet.

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Halogenation of aromatic compounds with -halosuccinimides (NXS) catalysed by D-camphorsulfonic acid-BiCl.

Org Biomol Chem

June 2024

Chemical Laboratory, School of Life Dentistry at Niigata, Nippon Dental University, Hamaura-cho, Niigata 951-8580, Japan.

Aromatic bromination catalysed by 0.5-10 mol% of D-camphorsulfonic acid-BiCl3 with -bromosuccinimides (NBS) was carried out in MeCN under air conditions, and the procedure was extended to the reactions with -chlorosuccinimides (NCS) and -iodosuccinimides (NIS). The halogenation of some drugs and natural products was also attempted.

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Protocol for forward genetic screening to identify novel factors involved in a biological process in Caenorhabditis elegans.

STAR Protoc

June 2024

Department of Physiology, Tokyo Women's Medical University School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan; Department of Physiology, The Nippon Dental University School of Life Dentistry, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan. Electronic address:

Forward genetic screens have been a powerful tool for discovering genes involved in various biological processes in Caenorhabditis elegans. Here, we present a protocol for forward genetic screening to identify novel factors involved in a biological process in C. elegans.

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Immunogenic effects of enamel matrix derivative on human alveolar ridge mucosa-derived vascular endothelial cells under lipopolysaccharide stimulation.

Odontology

January 2025

Field of Advanced Conservative Dentistry and Periodontology, Periodontology, Course of Clinical Science, The Nippon Dental University Graduate School Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.

Early peri-implant disease detection remains difficult. Enamel matrix derivative (EMD), which is used for periodontal tissue regeneration, promotes leukocyte chemotactic factor and adhesion molecule expression in vascular endothelial cells. We hypothesized that stimulating vascular endothelial cells with EMD would induce an inflammatory response in the peri-implant mucosa, enabling early peri-implant infection detection.

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Article Synopsis
  • A study investigated the prevalence of patent foramen ovale (PFO) in Japanese individuals, which had not been well-explored across different ethnic groups.
  • The research analyzed 359 hearts from forensic autopsies and found an overall PFO rate of 12.5%, with significantly higher rates in those under 20 years old (66.7% in males and 38.5% in females).
  • It was noted that the area of the fossa ovalis (a heart structure) increased with age, and the PFO prevalence in Japanese adults was lower compared to previous studies on White and Black populations.
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Aim: This study examined the oral status and the presence of teeth requiring treatment among older adults receiving home medical care.

Methods: This cross-sectional study was conducted at a Japanese dental clinic specializing in geriatric treatment. We recruited older adults receiving home medical care in the community who had begun to receive domiciliary dental care.

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Taste bud cells are classified into four types by their ultrastructural features. Immunohistochemical detection of taste-signaling molecules is used to distinguish cell types of taste bud cells; however, the characteristics of taste cell types such as the immunoreactivity for taste-signaling molecules have long remained unclear. We investigated the detailed characteristics of taste cells in rat vallate taste buds by electron microscopy and immunohistochemistry for gustducin, neural cell adhesion molecule (NCAM) and vesicle-associated membrane protein 2 (VAMP2), which are known as markers of Type II cells, Type III cells and both cell types, respectively.

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Non-alcoholic steatohepatitis (NASH), caused by fat buildup, can lead to liver inflammation and damage. Elucidation of the spatial distribution of fibrotic tissue in the fatty liver in NASH can be immensely useful to understand its pathogenesis. Thus, we developed a novel serial section-3D (SS3D) technique that combines high-resolution image acquisition with 3D construction software, which enabled highly detailed analysis of the mouse liver and extraction and quantification of stained tissues.

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Gradual elevation of the periosteum from the original bone surface, based on the principle of distraction osteogenesis, induces endogenous hard and soft tissue formation. This study aimed to assess the impact of alternating protocols of activation with relaxation (periosteal pumping) on bone modeling and remodeling. One hundred and sixty-two adult male Wistar rats were used in this study.

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This study evaluated the effect of simulated pulpal pressure (SPP) conditions and storage time on contemporary adhesive systems' microtensile bond strength (µTBS) to dentin. Extracted human molars were prepared and randomly divided into four groups according to the adhesives: Clearfil Megabond 2 (CSE), Beautibond Xtreme Universal (BXU), G2-Bond (G2B), and Scotchbond Universal Plus (SBP). Each adhesive group was further divided following the SPP conditions: control with no simulation (SPP-CTR), SPP with distilled water (SPP-DTW), and SPP with fetal bovine serum (SPP-FBS).

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Article Synopsis
  • Gingival wound healing is essential for oral health, but it can be hindered by oxidative stress and inflammation.
  • The study developed a human inflammatory gingival tissue equivalent (iGTE) to explore the impact of hydrogen-rich water (HW), enzyme-digested edible bird's nest (EBND), and sialic acid (SA) on wound healing impaired by oxidative and inflammatory agents.
  • Results showed that pretreating with HW, EBND, and SA improved wound healing and reduced inflammatory responses, with the combination of HW and EBND being particularly effective.
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Oral frailty is associated with mortality independently of physical and psychological frailty among older adults.

Exp Gerontol

June 2024

Institute for Active Health, Kyoto University of Advanced Science, 1-1 Nanjo Otani, Sogabe-cho, Kameoka-city, Kyoto 621-8555, Japan; Laboratory of Applied Health Sciences, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto-city, Kyoto 602-8566, Japan. Electronic address:

Article Synopsis
  • Oral frailty, which impacts older adults' health, is linked to an increased risk of death, and its evaluation can help identify those at higher mortality risk.
  • A study of over 11,000 adults aged 65 and older found that higher scores on the Oral Frailty Index-8 corresponded with a greater risk of mortality, even after considering other health factors.
  • It confirms that the Oral Frailty Index-8 can be an effective screening tool for assessing mortality risk related to oral health in older adults.
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This investigation sought to cross validate the predictors of tongue pressure recovery in elderly patients' post-treatment for head and neck tumors, leveraging advanced machine learning techniques. By employing logistic regression, support vector regression, random forest, and extreme gradient boosting, the study analyzed an array of variables including patient demographics, surgery types, dental health status, and age, drawn from comprehensive medical records and direct tongue pressure assessments. Among the models, logistic regression emerged as the most effective, demonstrating an accuracy of 0.

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Statement Of Problem: Preserving and restoring oral functions, especially mastication and swallowing, is important to the quality of life of patients being treated for head and neck tumors. Studies that help predict maximum occlusal force and tongue pressure during prosthetic treatment, necessary for providing comprehensive, appropriate treatment and encouraging patient adherence and confidence are lacking.

Purpose: The purpose of this clinical study was to develop a decision tree model for predicting maximum occlusal force and tongue pressure in patients diagnosed with head and neck tumors that could help both experienced and less experienced prosthodontists and oral surgeons optimize the treatment plan and support patient compliance and their quality of life.

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Introduction: We examined the efficacy of a multidomain intervention in preventing cognitive decline among Japanese older adults with mild cognitive impairment (MCI).

Methods: Participants aged 65-85 years with MCI were randomized into intervention (management of vascular risk factors, exercise, nutritional counseling, and cognitive training) and control groups. The primary outcome was changes in the cognitive composite score over a period of 18 months.

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This study explored the relationship between the morphological characteristics of the first tarsometatarsal ligaments and fibularis longus (FL) and the severity of articular cartilage degeneration in the first tarsometatarsal joint. Sixty legs from 30 cadavers were examined. The plantar, dorsal, and medial first tarsometatarsal ligaments were classified by fiber bundle number, and their morphological characteristics (fiber bundle length, width, thickness) were measured.

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