27,819 results match your criteria: "Tokyo Medical and Dental university[Affiliation]"

Cell of origin and expression profiles of pseudomyxoma peritonei derived from the appendix.

Pathol Res Pract

December 2024

Division of Clinical Genome Research, Institute of Medical Science, The University of Tokyo, Tokyo, Japan. Electronic address:

Article Synopsis
  • Pseudomyxoma peritonei (PMP) is a rare condition linked to mucin-producing tumors, usually starting in the appendix, leading to mucin buildup in the abdomen.
  • Researchers conducted RNA-seq analysis on ten PMP cases and their healthy tissue to reveal 32 differently expressed genes, indicating that PMP tumors arise from goblet cells.
  • The study found significant associations between PMP tumors and important biological processes like epithelial-mesenchymal transition, angiogenesis, and inflammation, with further analysis highlighting distinct gene expressions in different PMP types, suggesting more aggressive traits in peritoneal mucinous adenocarcinomas (PMCA).
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Excessive BMP3b suppresses skeletal muscle differentiation.

Biochem Biophys Res Commun

December 2024

Molecular Signaling and Biochemistry, Kyushu Dental University, Kokurakitaku, Kitakyushu, Fukuoka, Japan.

Bone morphogenetic protein (BMP)-3b, also known as growth differentiation factor (GDF)-10, belongs to the transforming growth factor (TGF)-β superfamily. Despite being named a BMP, BMP3b is considered as an intermediate between the TGFβ/activin/myostatin and BMP/GDF subgroups of the TGFβ superfamily. Myoblast differentiation is tightly regulated by various cytokines, including the TGFβ superfamily members.

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Background: Fluid balance gap (FBgap-prescribed vs. achieved) is associated with hospital mortality. Downtime is an important quality indicator for the delivery of continuous renal replacement therapy (CRRT).

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Background: The number of children with foreign parents is increasing in Japan; however, the percentage of these children receiving the recommended annual influenza vaccination, which must be paid for voluntarily, may be quite low. Socioeconomic status may influence voluntary vaccination decisions. This study explored the association between elementary and middle school children with mixed (either of the parents was non-Japanese) /foreign parents (both parents were non-Japanese) and influenza vaccination in Japan, stratified by household income and maternal education.

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Purpose: This multi-institutional observational study aimed to assess the incidence, severity, and impact of radiotherapy-related late toxicities of the cervical skin and soft tissue in head and neck cancer patients. We also explored patient interest in fat grafting as a potential treatment for skin and soft tissue sequelae.

Methods: This study was conducted across 19 institutions in Japan.

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Awareness-raising activities of advance care planning for community residents: a nationwide cross-sectional survey in Japan.

BMC Palliat Care

December 2024

Department of Health Services Research, Institute of Medicine, University of Tsukuba, 1-1-1 Tenno-dai, Tsukuba, Ibaraki, 305-8575, Japan.

Background: Japan is implementing awareness-raising of advance care planning for older adults; however, only 451 out of 1 741 municipalities were engaged in advance care planning awareness-raising activities among residents, according to a 2017 survey. This study examined advance care planning awareness-raising activities among community residents by local governments after the 2018 revision of the government guidelines, as well as utilization of the revised guidelines, issues in awareness-raising activities, and directions for future activities.

Methods: This cross-sectional questionnaire survey was conducted in prefectures and municipalities nationwide in 2022.

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Treatment for Overgrowth of a Finger Owing to Vascular Malformations: A Case Report.

Cureus

November 2024

Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, JPN.

Treatment for mild macrodactyly with only overgrowth of the solitary finger caused by vascular malformations (VMs) is rarely reported. We encountered a case of right middle finger overgrowth resulting from a VM in a seven-year-old girl. The length of her middle finger was 7.

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Fundus Curvature as a Clinical Marker for Posterior Staphyloma Based on Widefield Optical Coherence Tomography.

Am J Ophthalmol

December 2024

State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China. Electronic address:

Purpose: To investigate the ability to quantify fundus curvature and detect posterior staphyloma using widefield optical coherence tomography (OCT).

Design: Cross-sectional diagnostic evaluation.

Subjects And Participants: 205 highly myopic eyes of 205 participants.

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Objective: In Japan, the current coverage rate of human papillomavirus (HPV) vaccination is only 30%, and the rate of biennial cervical screening is 40%. The Japanese Government has attempted to increase the coverage of HPV vaccination and cervical screening. We analyzed the cost-effectiveness of the 9-valent HPV vaccine and cervical screening in Japan.

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Background: Lung cancer surgery is associated with a high incidence of chronic postsurgical pain (CPSP), which necessitates long-term analgesic prescriptions. However, while essential for managing pain, these have shown various adverse effects. Current guidelines recommend using peripheral nerve blocks over epidural anaesthesia for perioperative analgesia in minimally invasive thoracic surgery (MITS).

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The role of sonic hedgehog signaling in the oropharyngeal epithelium during jaw development.

Congenit Anom (Kyoto)

December 2024

Department of Molecular Craniofacial Embryology and Oral Histology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.

Sonic hedgehog (Shh) is expressed in the oropharyngeal epithelium, including the frontonasal ectodermal zone (FEZ), which is defined as the boundary between Shh and Fgf8 expression domains in the frontonasal epithelium. To investigate the role of SHH signaling from the oropharyngeal epithelium, we generated mice in which Shh expression is specifically deleted in the oropharyngeal epithelium (Isl1-Cre; Shh). In the mutant mouse, Shh expression was excised in the oropharyngeal epithelium as well as FEZ and ventral forebrain, consistent with the expression pattern of Isl1.

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Loeys-Dietz syndrome (LDS) is a genetic connective tissue disorder associated with vascular involvement and craniofacial, skeletal, and cutaneous abnormalities. Herein, we describe the case of a 28-year-old female who presented with a pulsatile mass in her abdomen. Imaging studies revealed multiple aneurysms, including a 53-mm abdominal aortic aneurysm (AAA) and tortuosity of the intracranial arterial vasculature.

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Article Synopsis
  • A study was conducted in Japan to compare in-hospital mortality rates between open aneurysm repair (OAR) and endovascular aneurysm repair (EVAR) for ruptured abdominal aortic aneurysm (rAAA) from 2018 to 2021.
  • The research involved analyzing administrative data from 482 acute care hospitals, resulting in 2650 patients in the OAR group and 2656 in the EVAR group.
  • The findings showed that in-hospital mortality was significantly lower for the EVAR group (9.4%) compared to the OAR group (11.7%), indicating that EVAR is associated with better outcomes and shorter hospital stays for rAAA patients.
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Background And Aim: Endoscopic submucosal dissection (ESD) is an acceptable treatment for superficial esophageal squamous cell carcinoma (ESCC) even in elderly patients. However, studies on the prognostic factors in very elderly patients are limited. Therefore, we aimed to explore the prognostic factors affecting overall survival (OS) in patients aged ≥ 80 with superficial ESCC who underwent ESD.

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Background: Esophageal cancer, particularly esophageal squamous cell carcinoma (ESCC), is a leading cause of cancer-related death and has a poor prognosis. Despite the advancements in multidisciplinary therapies, resistance to conventional treatments warrants the development of novel therapeutic strategies. Ferroptosis, a form of cell death dependent on intracellular iron, has emerged as a potential mechanism for targeting cancer cells resistant to apoptosis.

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Japanese clinical practice guidelines for oral cancer, 2023.

Int J Oral Maxillofac Surg

December 2024

Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.

The Japanese Society of Oral Oncology and Japanese Society of Oral and Maxillofacial Surgeons have jointly developed clinical practice guidelines for oral cancer (oral squamous cell carcinoma) to improve and standardize the quality of oral cancer treatment in Japan. The first, second, and third editions were published in 2009, 2013, and 2019, respectively, and the 2023 edition was recently developed. In the development of the 2023 edition, 60 clinical questions (CQs) were listed.

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Tau pathology is a hallmark of several neurodegenerative diseases, including frontotemporal dementia and Alzheimer's disease. However, the sequence of events and the form of tau that confers toxicity are still unclear, due in large part to the lack of physiological models of tauopathy initiation and progression in which to test hypotheses. We have developed a series of targeted mice expressing frontotemporal-dementia-causing mutations in the humanized MAPT gene to investigate the earliest stages of tauopathy.

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Hemifacial spasm (HFS) is a disorder that causes involuntary movements of the ipsilateral facial muscles because of vascular compression of the facial nerve. Microvascular decompression (MVD), a surgical procedure to detach the culprit vessel from the nerve is believed to be the most effective treatment for HFS. Nevertheless, in the rare case in which the vessel penetrates the nerve, positioning the vessel sufficiently far from the nerve is challenging.

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Objectives: The aims of this study were 1) to investigate seasonal epidemiological variations of pyogenic spondylodiscitis, including Methicillin-resistant Staphylococcus aureus (MRSA) infection, in Japan, and 2) to evaluate associated inpatient outcomes.

Methods: We performed a retrospective nationwide study using data from the Japanese Diagnosis Procedure Combination (DPC) inpatient database, covering the period from 2010 to 2022. The parameters assessed were seasonal incidence, demographic characteristics, inpatient mortality, complications, and medical costs.

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Objective: To assess the prevalence and outcomes among regimens of glucocorticoid tapering for microscopic polyangiitis (MPA) and granulomatosis with polyangiitis (GPA) in real-world practice.

Methods: We retrospectively examined the Japan Collaborative Registry of ANCA-associated Vasculitis (J-CANVAS) registry, and evaluated the prevalence of glucocorticoid tapering regimens in the PEXIVAS trial. In patients with newly diagnosed MPA and GPA, we compared outcomes among standard and reduced pace regimens.

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Objective: The potential link between malnutrition and dysphagia along with its underlying mechanisms remains unknown. This study aimed to investigate the association between malnutrition factors and dysphagia mediated by a decline in activities of daily living (ADL) among nursing home residents.

Methods: This cross-sectional study used data from 705 nursing home residents.

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Role of primary care for individuals with childhood-onset neurologic conditions.

Health Care Transit

December 2023

Department of Global Health Promotion, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.

Background: Individuals with childhood-onset neurologic conditions often face challenges in the pediatric-to-adult health care transition (HCT). Furthermore, the importance of implementing primary care is unrecognized. We investigated the situation of adults with childhood-onset neurologic conditions from the perspective of health care professionals (HCPs) in community- and hospital-based primary care practice.

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