3,357 results match your criteria: "Yamagata university School of Medicine[Affiliation]"

Background: Disproportionately enlarged subarachnoid-space hydrocephalus (DESH) is a key feature for Hakim disease (idiopathic normal pressure hydrocephalus: iNPH), but subjectively evaluated. To develop automatic quantitative assessment of DESH with automatic segmentation using combined deep learning models.

Methods: This study included 180 participants (42 Hakim patients, 138 healthy volunteers; 78 males, 102 females).

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Clinical and molecular analyses of isolated central congenital hypothyroidism based on a survey conducted in Japan.

Endocr J

May 2024

Division of Pediatrics, Department of Homeostatic Regulation and Development, Faculty of Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan.

Central congenital hypothyroidism (CH) can occur as an isolated deficiency or as part of combined pituitary hormone deficiency. Unlike primary CH, central CH cannot be detected by newborn screening (NBS) using dry filter paper blood TSH levels, and early diagnosis remains challenging. In this study, the clinical and genetic backgrounds of patients with isolated central CH were determined through a questionnaire-based survey among members of the Japanese Society for Pediatric Endocrinology.

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Japan's rapidly aging and high-mortality society necessitates a wider awareness and implementation of advance care planning. This Yamagata Cohort study investigated local residents' preferences for where they would like to spend their final days, and the underlying factors associated with those preferences with a self-administered questionnaire survey of local residents aged 40 years and over . Logistic regression analyses were used to assess those factors and, specifically, the choice of "Home" as the preferred place for end-of-life residence.

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Article Synopsis
  • - A systematic review and meta-analysis of 19 randomized controlled trials (RCTs) aimed to determine the best dialysate calcium (Ca) concentration for cardiovascular health in hemodialysis patients, comparing low-Ca (LCD) and high-Ca (HCD) treatments.
  • - Results indicated no significant differences in coronary artery calcification scores, all-cause death, or cardiovascular death between the two groups; however, LCD patients showed better cardiovascular function with lower intima-media thickness and pulse wave velocity compared to HCD patients.
  • - The analysis highlighted a lack of comprehensive RCTs on dialysate calcium concentrations, particularly those with patients using calcimimetics, underscoring the need for more research in
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A 51-year-old man developed acute disturbances in consciousness and psychiatric symptoms one month prior to admission. He was referred and admitted to the Department of Psychiatry of our hospital and transferred to the neurology department because diffuse white matter lesions were found on his brain during MRI. I-IMP-SPECT showed extensive cerebral hypoperfusion mainly in the frontal lobes.

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Recoverin is a neuron-specific calcium-binding protein that is mainly located in the retina and pineal gland. Few reports have described patients with anti-recoverin antibody-positive encephalitis, and no cases of psychosis associated with this encephalitis have been reported. We report a patient with anti-recoverin antibody-positive encephalitis with Cotard and Capgras delusions who was successfully treated with electroconvulsive therapy (ECT).

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Cardioembolic stroke is a serious disease with poor prognosis, whose main embolic source is the left atrial appendage (LAA). Left atrial (LA) strain evaluated by the two-dimensional (2D) speckle tracking technique has been proposed. However, the commonly used peak LA strain reflects only LA reservoir function.

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Aim: Lower extremity artery disease (LEAD) is an increasingly common health problem that is associated with high mortality due to thrombotic and bleeding events. Growth differentiation factor-15 (GDF15), a stress-response cytokine belonging to the transforming growth factor-beta superfamily, is associated with cardiovascular disease and its outcomes. The aim of the present study was to examine the effect of serum GDF15 levels on clinical outcomes in patients with LEAD.

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Dementia with Lewy bodies (DLB) is strongly associated with Alzheimer disease (AD)-type pathology and tends to mask the core clinical features of DLB. Therefore, there may be cases of undiagnosed DLB without suggestive biomarkers of DLB. We describe the case of a 63-year-old woman who was initially diagnosed as having AD and later diagnosed with DLB based on suggestive biomarkers of DLB.

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An 88-year-old man became unconscious and was admitted to our hospital due to severe anemia. Extensive subcutaneous hemorrhage around the chest and back and pectoralis major muscle hematoma were observed. Coagulation screening tests showed moderately reduced factor XIII/13 (FXIII) activity.

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Dynamic Molecular Markers of Otosclerosis in the Human Cochlea.

Ann Otol Rhinol Laryngol

April 2024

Department of Otolaryngology-Head and Neck Surgery, University of California Los Angeles, Los Angeles, CA, USA.

Objective: To investigate the role and distribution of various molecular markers using immunohistochemistry and immunofluorescence to further elucidate and understand the pathogenesis of otosclerosis.

Methods: Archival celloidin formalin-fixed 20-micron thick histologic sections from 7 patients diagnosed with otosclerosis were studied and compared to controls. Sections in the mid-modiolar region were immunoreacted with rabbit polyclonal antibodies against nidogen-1, β2-laminin, collagen-IX, BSP, and monoclonal antibodies against TGF β-1 and ubiquitin.

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Article Synopsis
  • Right ventricular failure (RVF) can occur even years after left ventricular assist device (LVAD) implantation, as shown in a case involving a 12-year-old with heart issues.
  • The patient initially had no risk factors, but experienced worsening RV function due to recurrent ventricular arrhythmias and progressive aortic insufficiency.
  • Ultimately, he required heart transplantation nearly three years after receiving the LVAD, highlighting the need for long-term monitoring and management of RVF in LVAD patients.
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  • Anti-IgLON5 disease is characterized by various neurological symptoms, notably dysautonomia, which often does not respond to typical immunotherapy.
  • A patient with this condition exhibited multiple autonomic failures, including severe vocal cord palsy, cognitive issues, and motor and gastrointestinal dysfunctions.
  • However, after receiving combined immunotherapy, the patient's symptoms—including the vocal cord palsy—showed significant improvement, indicating potential benefits of this treatment approach for dysautonomia in anti-IgLON5 disease.
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Expression of α-smooth muscle actin (αSMA) is constitutive in vascular smooth muscle cells, but is induced in nonmuscle cells such as hepatic stellate cells (HSCs). HSCs play important roles in both physiological homeostasis and pathological response. HSC activation is characterized by αSMA expression, which is regulated by the TGFβ-induced Smad pathway.

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Objective: Identifying factors associated with poor outcomes in patients with delirium is important for predicting prognosis. This retrospective study developed an easy and objective cognitive function measurement scale that can predict the prognosis and mortality related to delirium.

Methods: Fifty-five patients aged ≥65 years and diagnosed with delirium were included.

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Adult-onset idiopathic peripheral pulmonary artery stenosis.

Eur Respir J

December 2023

Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan.

Article Synopsis
  • A study focused on adult-onset idiopathic peripheral pulmonary artery stenosis (PPS) was conducted in Japan, aiming to better understand the disease profile in this population.
  • The research involved 44 patients, revealing that a majority showed stenosis in segmental and peripheral pulmonary arteries, and many were treated with medications for pulmonary arterial hypertension (PAH) along with transcatheter pulmonary angioplasty.
  • Despite starting with severe pulmonary hypertension, patients demonstrated significant improvement in pulmonary arterial pressure and resistance, and the study indicated high survival rates over 3, 5, and 10 years.
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Background: The influence of the coronavirus disease 2019 (COVID-19) pandemic on the number of newly diagnosed gynecological cancers has not been extensively investigated in Japan. This study determined the impact of COVID-19 on the incidence of gynecological cancer.

Methods: Using the Japanese Society of Obstetricians and Gynecologic Oncology registry database, the distribution of the number of patients based on clinical staging or tumor-node-metastasis classifications before and during the COVID-19 pandemic was analyzed to compare the trends.

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Associations between subjective well-being, number of teeth, and self-rated mastication in Japanese adults: A cross-sectional study.

Medicine (Baltimore)

December 2023

Department of Dentistry, Oral and Maxillofacial Plastic and Reconstructive Surgery, Faculty of Medicine, Yamagata University, Yamagata, Japan.

This cross-sectional study aimed to investigate the risk factors for low levels of subjective well-being (SWB) in the general population of Japan, specifically, the impact of the number of teeth and self-rated mastication. The surveyed population consisted of individuals aged between 40 and 79 years from Yamagata prefecture, Japan. A postal self-administered questionnaire survey of respondents lifestyles, medical history, oral health, and dietary intake, was conducted from 2017 to 2021.

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How do regional brain volume ratios and cerebral blood flow (CBF, mL/min) change with aging, and are there sex differences? This study aimed to comprehensively evaluate the relationships between regional brain volume ratios and CBF in healthy brains. The study participants were healthy volunteers who underwent three-dimensional T1-weighted MRI, time-of-flight MR angiography, and four-dimensional (4D) flow MRI between 2020 and 2022. The brain was automatically segmented into 21 brain subregions from 3D T1-weighted MRI, and CBF in 16 major intracranial arteries were measured by 4D flow MRI.

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Article Synopsis
  • The study analyzed body movement dynamics in patients with idiopathic normal pressure hydrocephalus (iNPH) and Parkinson's disease (PD) using a motion-capture system that tracked movement at 27 body points while walking in a circle.
  • By applying Fourier transforms to the collected data, the researchers measured the fractality of body movements and found that patients displayed decreased absolute slope values, indicating less healthy movement patterns compared to control groups.
  • Significant differences in body position movements were observed in both patient groups, suggesting that impaired fluctuations in body movement contribute to gait and balance issues in iNPH and PD patients.
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The mammalian oviductal lumen is a specialized chamber that provides an environment that strictly regulates fertilization and early embryogenesis, but the regulatory mechanisms to gametes and zygotes are unclear. We evaluated the oviductal regulation of early embryonic development using Ovgp1 (encoding an oviductal humoral factor, OVGP1)-knockout golden hamsters. The experimental results revealed the following: (1) female Ovgp1-knockout hamsters failed to produce litters; (2) in the oviducts of Ovgp1-knockout animals, fertilized eggs were sometimes identified, but their morphology showed abnormal features; (3) the number of implantations in the Ovgp1-knockout females was low; (4) even if implantations occurred, the embryos developed abnormally and eventually died; and (5) Ovgp1-knockout female ovaries transferred to wild-type females resulted in the production of Ovgp1-knockout egg-derived OVGP1-null litters, but the reverse experiment did not.

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