17,197 results match your criteria: "Juntendo University School of Medicine; Tokyo[Affiliation]"

Targeting senescent cells for the treatment of age-associated diseases.

J Biochem

December 2024

Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo City, Tokyo, 113-8431, Japan.

Cellular senescence, which entails cellular dysfunction and inflammatory factor release-the senescence-associated secretory phenotype (SASP)-is a key contributor to multiple disorders, diseases, and the geriatric syndromes. Targeting senescent cells using senolytics has emerged as a promising therapeutic strategy for these conditions. Among senolytics, the combination of dasatinib and quercetin (D + Q) was the earliest and one of the most successful so far.

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Systemic lupus erythematosus (SLE) is a typical autoimmune disease; although severe disease and refractoriness to existing therapies are still experienced, the number of cases resistant to remission induction has decreased with the establishment of various therapies. However, improving long-term prognosis remains a challenge due to the unavoidable prolonged use of non-selective glucocorticoids. To investigate the additional effect of belimumab in the chronic phase, we included 28 of 46 patients with SLE who were initiated on belimumab between January 2018 and October 2022 for glucocorticoid reduction.

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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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Article Synopsis
  • Unintended pregnancies are associated with increased mental health risks, particularly for women, who experience higher levels of psychological distress, chronic pain, and death fantasies compared to those with intended pregnancies.
  • The study analyzed responses from over 7,000 women and 1,700 men, examining various conception methods and their impact on mental health before and after childbirth.
  • Additionally, men undergoing fertility treatments, especially those using scheduled intercourse or insemination, also exhibited significant mental health challenges, highlighting the need for support in these populations.
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Decoding Brain Development and Aging: Pioneering Insights From MRI Techniques.

Invest Radiol

October 2024

From the Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan (A.H., S.K., J.K., M.N., W.U., S.F., T.A., A.W., K.K., S.A.); Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan (A.H., M.N., S.F.); Polytechnique Montréal, Montreal, Quebec, Canada (S.N.); Montreal Heart Institute, University of Montreal, Montreal, Quebec, Canada (S.N.); and Center for Advanced Interdisciplinary Research, Ss. Cyril and Methodius University in Skopje, Skopje, North Macedonia (S.N.).

The aging process induces a variety of changes in the brain detectable by magnetic resonance imaging (MRI). These changes include alterations in brain volume, fluid-attenuated inversion recovery (FLAIR) white matter hyperintense lesions, and variations in tissue properties such as relaxivity, myelin, iron content, neurite density, and other microstructures. Each MRI technique offers unique insights into the structural and compositional changes occurring in the brain due to normal aging or neurodegenerative diseases.

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We investigated the cost-effectiveness of treating iron deficiency anemia (IDA) with ferric citrate hydrate (FC) in Japan. We employed four treatment strategies: switching from sodium ferrous citrate (SF) to FC at (1) 500 mg (approximately 120 mg of iron) per day or (2) 1000 mg (approximately 240 mg of iron) per day in patients with SF-induced nausea/vomiting, or starting treatment with FC at (3) 500 mg/day or (4) 1000 mg/day. We evaluated the cost-effectiveness of these strategies compared with SF 100 mg (100 mg of iron) per day.

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Aims/introduction: Fatty acid-binding protein (FABP) 4, which acts as an adipokine secreted by adipocytes, macrophages, and capillary endothelial cells, is expressed in injured glomerular cells. It has been reported that urinary (U-) FABP4 is associated with renal dysfunction and proteinuria in several glomerular kidney diseases. However, the clinical significance of U-FABP4 in diabetic kidney disease (DKD) remains undetermined.

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Introduction: An increased rate of gastrointestinal (GI) symptoms is reported in patients with type 2 diabetes receiving imeglimin plus metformin vs monotherapy or in combination with other antidiabetic drugs. This post-hoc analysis explored GI symptom incidence, risk factors for their occurrence, and the impact on therapeutic efficacy during imeglimin and metformin combination therapy.

Materials And Methods: Data were derived from the 52-week, open-label, phase 3 TIMES-2 trial in Japanese type 2 diabetes patients.

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Aims: Atherogenic dyslipidemia (AD) is regarded as a residual risk of cardiovascular diseases characterized by low high-density lipoprotein cholesterol (HDL-C) and high triglyceride (TG) levels and related to the intracranial stenosis of atheromatous thrombotic brain infarction (ATBI). Further, atherosclerosis is possibly related to another stroke subtype, including cryptogenic stroke (CS). In particular, an aortic complicated lesion (ACL) is a notable embolic source of CS, since recurrence of aortogenic brain embolism is not rare.

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Metastasis is a significant contributor to cancer-related mortality and a critical issue in cancer. Monitoring the changes in circulating tumor cells (CTCs) with metastatic potential is a valuable prognostic and predictive biomarker. CTCs are a rare population in the peripheral blood of patients with cancer.

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Background: Cardiovascular disease (CVD) prevalence varies widely among Asian American adults. The American Heart Association added healthy sleep to its metrics to define ideal cardiovascular health. Little is known about the association between sleep and CVD prevalence among Asian subgroups.

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A tribute to Prof. Yoshihiro Endo.

Ther Apher Dial

December 2024

Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan.

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Objectives: We examined shifts in labor productivity and their economic ramifications among adult patients with long COVID in Japan.

Methods: A total of 396 patients were categorized into three groups based on symptom progression: non-long COVID, long COVID recovered, and long COVID persistent. Patient-reported outcomes were assessed at three time intervals: 3, 6, and 12 months after COVID-19 diagnosis.

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A 48-year-old male with a history of hyperlipidemia presented to the emergency department with chest pain. Electrocardiographic abnormalities indicated an acute coronary syndrome. Urgent coronary angiography revealed nondominant right coronary artery (RCA) occlusion.

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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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Background: Disseminated intravascular coagulation (DIC) is a severe complication in septic patients. The Japanese Ministry of Health and Welfare (JMHW)-DIC criteria, the first DIC criteria, were established in 1983, and several other criteria have been proposed since then, including the International Society on Thrombosis and Haemostasis (ISTH)-overt DIC criteria and the Japanese Association for Acute Medicine (JAAM) DIC criteria. This study aimed to look into the transition of DIC criteria used in randomized controlled trials (RCTs) for sepsis-induced DIC.

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Aims: Diabetic chorea refers to sudden involuntary movements developing in people with diabetes mellitus and is known to occur mainly in those with severe hyperglycemia. We conducted a questionnaire survey of case-reporting facilities in Japan to elucidate their clinical characteristics.

Methods: We searched the PubMed and Ichushi databases for case reports published from January 1, 2012, to December 31, 2017, using "diabetes" and "chorea" as keywords, and sent a questionnaire to the reporting institutions.

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Background: To evaluate whether sodium zirconium cyclosilicate (SZC) enables the up-titration of spironolactone without increasing the risk of hyper- and hypokalemia in patients with heart failure with reduced and mildly reduced ejection fraction (HFrEF and HFmrEF) and moderate/severe chronic kidney disease (CKD) who developed hyperkalemia during treatment with suboptimal spironolactone dose.

Methods: The REGISTA-K is a randomized, double-blind, placebo-controlled, multicenter trial that examined the efficacy and safety of SZC in up-titrating spironolactone without the occurrence of hyperkalemia or hypokalemia. A total of 266 patients with HFrEF and HFmrEF and hyperkalemia will be randomized in a 1:1 ratio to receive either SZC or placebo after treating hyperkalemia with SZC at 25 sites in Japan.

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Mutations in the skeletal isoform of the ryanodine receptor 1 (RyR1) pose grave risks during anesthesia or treatment with succinylcholine muscle relaxants. These can trigger a potentially lethal malignant hyperthermia (MH) episode via intracellular calcium increase mainly from RyR1 channel leakage. Dantrolene is the only known treatment option to prevent death.

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Objective: Early diagnosis and treatment of anti-N-methyl-D-aspartate receptor encephalitis (NMDARE) are crucial for a favorable prognosis. Detecting the causative autoantibodies can be challenging. Probable diagnostic criteria are useful in adults less so in children.

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Objective: This study evaluated the efficacy and safety of NPC-25, zinc histidine hydrate, in patients with hypozincemia. This randomized multicenter active-controlled open-label trial aimed to verify the non-inferiority of NPC-25 to NOBELZIN™, zinc acetate dihydrate.

Methods: Participants whose serum zinc concentrations were <70 μg/dL at two points within 8 weeks before the start of treatment were randomized 1:1 into the NPC-25 (active drug) administration group and the NOBELZIN™ (control drug) administration group, using dynamic allocation.

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Objective: Patients with sellar lesions compressing the optic nerve sometimes perceive visual improvement after lesion resection, despite the absence of visual impairment on preoperative ophthalmological examination. This study investigated the indicators of latent visual impairment in patients with sellar lesions.

Methods: Forty-five patients who underwent surgery for sellar lesions compressing the optic nerve with no preoperative visual abnormalities and no change in visual assessment between pre- and postoperative ophthalmological examinations were divided into two groups: 1) patients who perceived recovery of visual function after lesion resection (the improved group), and 2) patients who did not (the unaffected group).

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Article Synopsis
  • The study investigates how much time Japanese clinical residents spend at patients' bedsides and its potential impact on their exam scores.
  • A nationwide survey included over 5,300 first- and second-year residents, revealing that 66.9% spent less than 60 minutes per day at the bedside.
  • Results indicated a positive correlation between increased time-at-bedside (especially categories C2, C3, and C5) and higher General Medicine In-Training Examination scores, while categories C4 and C6 showed no significant association.
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Background: Lower gastrointestinal perforation (LGP) is an acute abdominal condition associated with a high mortality rate. Timely and accurate diagnosis is crucial. Nevertheless, a diagnostic delay has been estimated to occur in approximately one-third of the cases, and the factors contributing to this delay are yet to be clearly understood.

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