Publications by authors named "Muraoka S"

Austrian syndrome is a rare triad of meningitis, pneumonia, and endocarditis caused by . It is associated with high morbidity and mortality rates. Most reports describe pneumonia as the initial illness, followed by multi-organ involvement.

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Altered gut microbiota is linked to systemic lupus erythematosus (SLE), but its association with disease development, disease activity, and post-intervention changes remains unclear. We compared new-onset SLE (NOSLE, n = 25), SLE in remission (RemSLE, n = 30), and healthy controls (HC, n = 30) cross-sectionally and conducted the first longitudinal analysis of NOSLE patients (n = 22) from pre-intervention to remission over 12 months. Significant β-diversity differences were observed in both NOSLE and RemSLE compared to HC, but not between NOSLE and RemSLE.

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Background: To date, no specific treatment has been established to reverse progressive chronic kidney disease (CKD).

Aim: To evaluate the safety and efficacy of autologous CD34 cell transplantation in CKD patients who exhibited a progressive decline in renal function.

Methods: The estimated glomerular filtration rate (eGFR) at the beginning of the study was 15.

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Objectives: Vascular Eagle syndrome (ES) is a rare condition involving vessel compression by an elongated styloid process, leading to neurologic symptoms. Here, we present the case of a patient with a complication of carotid artery stenting for vascular ES and discuss the implications of treatment of this rare condition.

Case Description: A 35-year-old previously healthy male patient presented with transient aphasia and right-sided hemiparesis following ischemic stroke in left frontal lobe.

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The resistance of colorectal cancer liver metastases (CRLMs) to 5-fluorouracil (5-FU) chemotherapy remains a significant global health challenge. We investigated the phosphoproteomic dynamics of serial tissue sections obtained from initial metastases and recurrent tumors collected from 24 patients to address this unmet need for innovative therapeutic strategies for patients with CRLM with a poor prognosis. Our analysis revealed the activation of PAK kinase in patients with CRLM with a poor prognosis.

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Background: We compare the oncological outcomes and health-related quality of life (HRQOL) in men with high-risk prostate cancer after robot-assisted radical prostatectomy (RARP) versus that after high-dose-rate brachytherapy + external beam radiotherapy + hormone therapy (hereafter: "HDR+").

Methods: We included 233 men who underwent RARP and 179 men who underwent HDR+ for high-risk prostate cancer at our hospital. We investigated the following oncologic outcomes: time to biochemical recurrence, time to development of castration-resistant prostate cancer (CRPC), cancer-specific survival, and overall survival.

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  • The Wnt/β-catenin signaling pathway is implicated in glucocorticoid-induced osteoporosis (GIOP), and previous studies suggested that inhibiting sclerostin could provide a treatment option.
  • The study aimed to evaluate the effectiveness of romosozumab (ROMO), compared to denosumab (DMAb) and bisphosphonates (BP), in increasing bone mineral density (BMD) in patients with rheumatic diseases undergoing glucocorticoid therapy.
  • Results showed that ROMO significantly improved lumbar spine BMD after 12 months, indicating that it is a promising treatment for patients with GIOP.
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Targeting the drug tolerant persister (DTP) state in cancer cells should prevent further development of resistance mechanisms. This study explored combination therapies to inhibit alectinib-induced DTP cell formation from anaplastic lymphoma kinase-positive non-small cell lung cancer (ALK + NSCLC) patient-derived cells. After drug-screening 3114 compounds, pan-HER inhibitors (ErbB pathway) and tankyrase1/2 inhibitors (Wnt/β-catenin signaling) emerged as top candidates to inhibit alectinib-induced DTP cells growth.

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Tumor cells are known to enhance glycolysis, even under normoxic conditions, via the Warburg effect, producing excess lactic acid in the tumor microenvironment. Lactic acid enhances the IL-23/IL-17 pathway and induces chronic inflammation. The acidic microenvironment formed by lactic acid suppresses immune cell proliferation and activation.

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  • Advanced gastric cancer (AGC) has a poor prognosis, with median survival under 14 months, and there are limited effective molecular targeted therapies available.
  • The study developed a deep phosphoproteome analysis from quick endoscopic biopsies, identifying three subtypes of AGC based on phosphorylation signaling and indicating dynamic changes in cancer cell behavior during treatment.
  • The research focuses on targeting AXL in relation to epithelial-mesenchymal transition (EMT) signaling and offers valuable insights for future therapeutic strategies and biomarkers for AGC.
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Background: We investigated potential disparities in health-related quality of life, particularly concerning urinary function, between patients with preserved and those with impaired sexual function after robot-assisted radical prostatectomy (RARP).

Materials And Methods: Between December 2012 and April 2020, 704 men underwent RARP in our hospital. This study included 155 patients with a preoperative 5-item International Index of Erectile Function (IIEF-5) of ≥12 points and an assessable IIEF-5 at 12 months postoperatively.

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  • Systemic sclerosis (SSc) is an autoimmune disease characterized by fibrosis, and the study investigates the role of soluble CD13 (sCD13) and its signaling through the bradykinin receptor B1 (B1R) in SSc pathogenesis.
  • Researchers found elevated levels of CD13, B1R, and MMP14 in skin from SSc patients, which contributed to fibrosis through signaling pathways activated by TGF-β and sCD13.
  • The study concludes that targeting the sCD13-B1R axis could represent a novel and effective therapeutic strategy for treating skin fibrosis in SSc.
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  • Immune checkpoint inhibitors (ICIs) have improved cancer treatment outcomes but identifying effective biomarkers for patient selection is essential due to current markers like PD-L1 showing limited predictive accuracy.
  • * This study analyzes blood-based factors, like neutrophil-to-lymphocyte ratio and red cell distribution width (RDW), to predict benefits from ICI therapy using data from a Clinical Data Warehouse (CDW) and electronic medical records (EMR).
  • * Results showed a significant correlation between high RDW and the likelihood of receiving fewer doses of the ICI pembrolizumab, highlighting its potential as a prognostic marker for predicting treatment efficacy.
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  • - Biologics, like benralizumab, are key treatments for severe asthma, but there's limited data on their effects in elderly patients (70+ years old).
  • - A study analyzed 51 patients (22 elderly, 29 non-elderly) treated with benralizumab, showing significant reductions in asthma exacerbations for both groups during treatment.
  • - The medication was well-tolerated in elderly patients, with a similar rate of discontinuation due to side effects compared to non-elderly patients.
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The sensitivity of phosphorylation site identification by mass spectrometry (MS)-based phosphoproteomics has improved significantly. However, the lack of kinase-substrate relationship (KSR) data has hindered improvement of the range and accuracy of kinase activity prediction using phosphoproteome data. We herein describe the application of a systematic identification of KSR by integrated phosphoproteome and interactome analysis using doxycycline (Dox)-induced target kinase-overexpressing HEK-293 cells.

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  • - The study investigates the link between HLA genotypes and the severity of COVID-19 in 209 Japanese patients, identifying how specific alleles correlate with severe respiratory cases over different epidemic periods (pre-Omicron and Omicron).
  • - Significant associations were found, particularly with alleles HLA-DQA1*01:03 and HLA-DQB1*06:01, showing higher frequencies in severe COVID-19 cases compared to non-severe cases, primarily during the pre-Omicron period.
  • - There was a strong correlation between the two significant alleles (r = 0.91), indicating they are often inherited together, and their presence in the severe group highlights potential genetic factors influencing COVID-19
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  • Stone extraction plays a crucial role in flexible ureteroscopic lithotripsy (f-URSL) for treating upper urinary stones, and this study used a simulator model to evaluate factors impacting its efficacy.
  • Eight urologists and residents participated in tasks using different ureteral access sheaths and a basket holder while simulating stone extraction in both left and right kidneys.
  • Results indicated that the Navigator sheath led to more instances of the ureteroscope getting stuck and stones being dropped, particularly on the ipsilateral side, highlighting the importance of equipment choice and kidney positioning in improving surgical outcomes.
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  • Benralizumab, an antibody for eosinophilic asthma, helps reduce flare-ups and reliance on corticosteroids, but its prescribing varies significantly across Japan’s 47 prefectures.
  • A study using national insurance claim data found that higher average income correlates with increased benralizumab prescriptions, while correlations with physician density were weaker.
  • The findings highlight that income is the most significant factor affecting access to advanced asthma treatments in Japan, suggesting that addressing financial barriers is crucial for improving patient care and outcomes.
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Objective: Transient neurological deficits (TNDs) are known to develop after direct bypass for Moyamoya disease and may be risk factors for subsequent stroke. However, the factors involved in the development of TNDs and stroke after indirect revascularization alone, including their association with subsequent stroke, remain unclear. The purpose of this study was to investigate this issue.

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Background: We aimed to reveal the effect of abatacept (ABT) on atherosclerosis in rheumatoid arthritis (RA) patients, 3-year efficacy for arthritis, and safety in a population of older vs. younger patients.

Methods: In this open-label, prospective, observational study, patients were stratified into four groups: younger (20-64 years old) and older (≥ 65 years) patients taking ABT (AY and AO) and conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) (CY and CO).

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  • Research aimed to create a panel of fewer tumor markers for lung cancer diagnosis, balancing sensitivity with the risk of false positives.
  • The study involved 1,733 patients and used logistic regression to identify three key markers (CEA, CYFRA, NSE) linked to lung cancer diagnosis.
  • The three-marker panel demonstrated better diagnostic accuracy and reduced false positives compared to a panel that included all six tumor markers.
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hinotori™ is a recently developed surgical robot system. The present study aims to compare intraoperative and postoperative outcomes of robot-assisted radical prostatectomy (RARP) by the hinotori™ system compared with those of the longer-established da Vinci system. This study includes 100 consecutive patients who underwent RARP by da Vinci and 60 patients who underwent RARP by hinotori™.

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Lipid mediators have been suggested to play important roles in the pathogenesis of rheumatoid arthritis (RA). Lipidomics has recently allowed for the comprehensive analysis of lipids and has revealed the potential of lipids as biomarkers for the early diagnosis of RA and prediction of therapeutic responses. However, the relationship between disease activity and the lipid profile in RA remains unclear.

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The bZIP60, XBP1 and HAC1 mRNAs encode transcription factors that mediate the unfolded protein response (UPR) in plants, animals and yeasts, respectively. Upon UPR, these mRNAs undergo unconventional cytoplasmic splicing on the endoplasmic reticulum (ER) to produce active transcription factors. Although cytoplasmic splicing is conserved, the ER targeting mechanism differs between XBP1 and HAC1.

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Immune checkpoint inhibitors (ICIs) have demonstrated efficacy and improved survival in a growing number of cancers. Despite their success, ICIs are associated with immune-related adverse events that can interfere with their use. Therefore, safer approaches are needed.

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