Publications by authors named "Maeda Daichi"

Small cell lung cancer (SCLC) is classified into distinct molecular subtypes based on the expression patterns of four transcription regulators: achaete-scute homolog 1 (ASCL1), neuronal differentiation 1 (NEUROD1), POU class 2 homeobox 3 (POU2F3), and yes-associated protein 1 (YAP1). MicroRNAs (miRNAs) play critical roles in cancer cellular processes but their subtype-specific implications in SCLC remain underexplored. Out of 46 surgically resected SCLC samples, miRNA visualization through in situ hybridization identified high expression of miR-375 in the ASCL1, NEUROD1, and ASCL1/NEUROD1 subtypes, and miR-9-5p in the POU2F3 subtype.

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Objectives: A thymoma is a functional thymic epithelial tumor wherein tumorigenic thymic epithelial cells possess T-cell differentiation and maturation potential. The tumor immune environment exhibits heterogeneous tumor immunity. The tumor immune environment of thymoma is characterized by its distinctive and complex immunological functions, requiring an analysis of the various factors involved.

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Introduction: Interstitial cystitis with Hunner lesion (IC/HL) is an enigmatic, chronic inflammatory disease of the urinary bladder. Few documented cases have reported the IC/HL involving the upper urinary tract.

Case Presentation: A 51-year-old Japanese woman with IC/HL developed bilateral ureteral stenosis and associated hydronephrosis, resulting in increased serum creatinine concentrations.

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Aims: CD31 (platelet endothelial cell adhesion molecule 1) is a transmembrane glycoprotein involved in cell adhesion and signal transduction that is primarily expressed in vascular endothelial cells, platelets, neutrophils, and certain tumour cells. We investigated CD31 expression in cancer cells by conducting a pan-cancer gene expression analysis using data from cancer cell lines as well as an immunohistochemical analysis of surgically resected cancer specimens. The goal was to elucidate the frequency and distribution of CD31 expression across cancer types and its diagnostic significance.

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Aim: Sarcopenia is a prevalent comorbidity among older patients with heart failure. This study aimed to evaluate the differences between sarcopenia diagnosed using the Asian Working Group for Sarcopenia (AWGS) 2014 and 2019 criteria in older patients with heart failure.

Methods: This study is a post hoc sub-analysis of data from the FRAGILE-HF study, a prospective, multicenter, observational study.

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Aims: The prevalence and impact of cardiovascular, kidney, and metabolic (CKM) overlap on physical function and prognosis in older patients with heart failure (HF) remain unclear. This study aimed to assess the impact of overlapping CKM conditions on physical function and prognosis in older patients with HF.

Methods: This post-hoc analysis of the FRAGILE-HF (main cohort) and SONIC-HF (validation cohort), both prospective multicentre studies, included patients aged ≥65 years who were hospitalised for HF.

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Aims: The benefits of exercise in patients with heart failure are well documented. However, to date, the association between exercise habits and prognosis is yet to be evaluated. In this study, we investigated the association between pre-hospital exercise habits and post-discharge prognosis in older adult patients with heart failure.

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Background: Renal dysfunction is significantly associated with poor prognosis in patients with heart failure. However, the prognostic significance of proteinuria as a potential marker of an impaired glomerular filtration barrier in acute heart failure (AHF) remains unclear. We aimed to investigate the prognostic value of urinary protein/creatinine ratio (PCR) in patients with AHF.

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Background And Aims: In patients with heart failure (HF), differences in the association between estimated protein intake (PI) and prognosis in those with and without chronic kidney disease (CKD) remain to be clarified. This study aimed to investigate whether the prognostic effects of the estimated PI differ between patients with HF with and without CKD.

Methods: We included patients who required hospitalisation owing to worsening HF between 2015 and 2019 and assessed the estimated PI based on the adjusted Maroni formula using the body mass index and urinary urea nitrogen level.

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Objectives: The Asian Working Group for Sarcopenia in 2019 (AWGS 2019) emphasized muscle mass measurements. In contrast, the Sarcopenia Definitions and Outcomes Consortium (SDOC) prioritizes functional strength and mobility. Therefore, this study aimed to compare the prognostic utility of the SDOC and AWGS 2019 criteria for all-cause mortality in older patients with heart failure.

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Article Synopsis
  • The study explores the prevalence of cachexia, sarcopenia, and malnutrition in older patients with heart failure (HF) using definitions from the Asian Working Group for Cachexia (AWGC) and other criteria, finding that AWGC-defined cachexia was the most common condition.
  • Among the 861 patients analyzed, cachexia was present in 74.1%, while other conditions showed lower prevalence rates.
  • The results indicated that AWGC-defined cachexia was not significantly linked to all-cause mortality in these patients, contrasting with stronger associations found for cachexia according to Evans' criteria, sarcopenia, and malnutrition.
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  • Older patients (65+) with heart failure (HF) often experience physical frailty and malnutrition, which can worsen each other and lead to poor health outcomes.
  • A study involving 862 hospitalized patients found that those with both frailty and malnutrition had the highest risk of death within a year of discharge compared to those with neither condition.
  • Identifying and addressing both frailty and malnutrition in these patients is essential for improving their overall health and survival rates.
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  • The study aimed to analyze clinical features of patients with interstitial cystitis (IC) and bladder pain syndrome (BPS) by using a patient registry in Japan, classifying patients based on cystoscopic findings.
  • A total of 529 patients from 14 university hospitals were included, showing that 66.5% had IC, with these patients being older and predominantly female, and with more comorbid autoimmune diseases.
  • Results indicated that patients with IC experienced worse symptoms, quality of life, and bladder function compared to those with BPS, with specific bladder measurements significantly correlating with pain levels in IC patients.
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Hunner-type interstitial cystitis (HIC) is a chronic inflammatory disease of the urinary bladder with an unknown etiology. We conducted comprehensive immunogenomic profiling of bladder specimens obtained by biopsy and cystectomy from 37 patients with HIC. Next-generation RNA sequencing demonstrated abundant plasma cell infiltration with frequent light chain restriction in HIC-affected bladder tissue.

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Myoepitheliomas are rare salivary gland-type tumors. The tumors are divided into four histological subtypes (spindle cell, plasmacytoid, epithelioid, and clear cell) and two variants (reticular and mucinous). A myoepithelioma of the mucinous variant, also referred to as mucinous or secretory myoepithelioma, is a novel variant of myoepithelioma characterized by the presence of extracellular mucin.

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  • A study explored the effectiveness of the oral human papillomavirus (HPV) vaccine IGMKK16E7 in treating cervical intraepithelial neoplasia, showing promising results where some patients experienced a complete histological response.
  • Researchers analyzed cervix-exfoliated cell samples from 42 patients to identify biomarkers that could predict the success of the vaccine, focusing on various gene expressions related to immune response.
  • The key finding was that lower levels of the biomarker CD86 correlated with a higher likelihood of achieving a complete response to the vaccine, with CD86-low patients demonstrating a significantly increased response rate compared to those with higher CD86 levels.
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Article Synopsis
  • The revised clinical guidelines differentiate between interstitial cystitis (IC) and bladder pain syndrome (BPS), defining IC as a bladder condition with Hunner lesions and associated inflammation, while BPS lacks such lesions and confounding diseases.
  • The pathophysiology differs significantly: IC is linked to immunological inflammation likely due to autoimmunity, whereas BPS arises from various factors like neurogenic inflammation and psychological stress.
  • Effective management requires accurate diagnosis via cystoscopy to identify Hunner lesions, leading to tailored treatment strategies, although pain management methods may overlap for both conditions.
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Aims: The 6-min walk test (6MWT) is a widely accepted tool for evaluating exercise tolerance and physical capacity, and the 6-min walk distance (6MWD) is an established prognostic factor in patients with heart failure (HF). However, the prognostic implications of post-6MWT dyspnoea remain unknown. We aimed to investigate the prognostic value of Borg scores after the 6MWT in patients with HF.

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  • Tricuspid regurgitation (TR) is common in acute heart failure (AHF) and impacts patient prognosis, but the changes in TR severity during hospital stays are not well understood.
  • A study of 1,079 AHF patients found that over half exhibited improvement in TR severity by discharge, with those maintaining severe TR facing worse outcomes like higher mortality and rehospitalization rates.
  • Persistent TR severity after treatment is a significant indicator of poor prognosis, suggesting that ongoing TR may require further treatment in AHF patients upon hospitalization.
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  • The study evaluated the validity of the AWGS 2019 criteria for diagnosing sarcopenia in heart failure patients and proposed a modified model incorporating the 6-minute walk test (6MWT) for better risk stratification.
  • The modified model identified sarcopenia and severe sarcopenia differently than the original, detecting more cases, and showed a stronger link to 2-year mortality rates.
  • Findings suggest that using the 6MWT enhances the ability to assess risk in patients with heart failure, indicating a need to revise current criteria for timely treatment decisions.
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  • The study investigates the potential cellular origins and molecular subtypes of clear cell ovarian carcinoma (CCOC) using advanced genomic and epigenomic analyses of 78 samples.
  • Findings revealed that ARID1A and PIK3CA mutations occur without mutations in certain DNA repair genes and identified major CCOC subtypes associated with specific tissue types.
  • CCOC subtypes were categorized into three clusters based on mutations and morphological similarities, with implications for understanding their biological behavior and guide treatment approaches.
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Meningioma is the most common primary intracranial tumor in adults, with up to 10% manifesting as multiple tumors. Data on the genomic and molecular changes in sporadic multiple meningiomas are scarce, leading to ongoing debates regarding their evolutionary processes. A comprehensive genetic analysis of a large number of lesions, including precursor lesions, is necessary to explore these two possible origins: clonal and independent.

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  • - Gastric adenocarcinoma shows various genetic changes, but the key genes responsible for its development are still unclear; this study focused on identifying these key genes by analyzing tissue samples from patients.
  • - The researchers found that the VEGFA gene locus on chromosome 6p is often amplified in gastric adenocarcinoma, affecting about 20% of the cases studied.
  • - VEGFA amplification is linked to specific cancer characteristics and improved patient survival rates, indicating it could serve as a marker for better prognosis in gastric adenocarcinoma cases.
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Aims: In heart failure (HF), inflammation is linked to malnutrition and impaired physical function. In this study, we aimed to assess how novel nutritional-inflammatory markers and lymphocyte-to-C-reactive protein ratio (LCR) and score (LCS) are associated with the nutritional status, physical function, and prognosis of patients with HF.

Methods And Results: This study was a secondary analysis of the FRAGILE-HF study, a prospective observational study conducted across 15 hospitals in Japan.

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