Publications by authors named "Mizuguchi K"

Malnutrition is observed in approximately 20-50% of hospitals and long-term care facilities. We examined the effects of malted rice amazake beverage on the nutritional status and gut microbiome of older patients and residents in an integrated long-term care facility; 13 older patients and residents (84.6 ± 9.

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Background: Frailty increases the risk of needing nursing care and significantly affects the life and functional prognosis of older individuals. Early detection and tailored interventions are crucial for maintaining and enhancing their life functions. Recognizing distinct clinical phenotypes is essential for devising appropriate interventions.

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  • The study explored how gut microbiota affects non-obese individuals who consume high levels of barley, a fiber-rich food potentially beneficial for obesity prevention.
  • Researchers enrolled 185 participants, comparing those with high and low barley intake and assessing their gut bacteria and dietary habits.
  • Results showed that barley responders consumed more natto (fermented soybeans) and had higher levels of specific beneficial bacteria, suggesting enhanced fiber breakdown and butyrate production in their guts.
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Summary: To address the challenges of the storage, sharing, and analysis of multi-omics data, here we introduce the newest version of Panomicon, which includes the improvement of the underlying data model, the introduction of new registration and control access service, together with the seamless integration with other services (like TargetMine for data enrichment analysis), integrated in a completely new, more user friendly web application.

Availability And Implementation: Panomicon is available online at https://panomicon.nibiohn.

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Background: The human gut environment undergoes substantial changes as a host ages. This investigation centered on the gut microbiome diversity among patients with severe motor and intellectual disabilities (SMID), examining the association between the gut microbiome composition and physical characteristics with varying levels of diversity.

Methods: Fourteen subjects were investigated, with physical and defecation status, blood biochemical test, gut microbiome profiling, and fecal metabolites used to divide the patients into a high-diversity group (HD, eight patients) and a low-diversity group (LD, six patients).

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  • A glioblastoma patient with high tumor mutation burden and mismatch repair deficiency showed a strong positive response to pembrolizumab, an immune checkpoint inhibitor, despite previous treatment with temozolomide which usually leads to resistance.
  • Despite rapid disease progression, indicated by high Ki67 levels, the patient's condition improved significantly with pembrolizumab.
  • This case highlights the potential of precision oncology in treating GBM and emphasizes the need for thorough genomic profiling to inform treatment strategies.
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  • * The study showcases a successful diagnosis of epithelioid angiosarcoma (EAS) using lung resection samples, combining visual inspection, imprint cytology, and specific immunocytochemical markers.
  • * The findings highlight the effectiveness of cytological specimens for diagnosing EAS, providing a valuable alternative when traditional tissue samples are difficult to obtain.
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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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  • 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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  • The gut microbiota plays a crucial role in various physiological functions, including gut health, immunity, and metabolism, with secreted phospholipase A group X (sPLA-X) being heavily involved in this process, particularly in the colon.
  • Mice lacking sPLA-X (Pla2g10) showed different levels of obesity, which could be treated with antibiotics or by living with other Pla2g10 mice, highlighting the microbiota's influence on their obesity-related traits.
  • Diet-induced obesity and insulin resistance in Pla2g10 mice were linked to increased colonic inflammation and decreased production of beneficial substances, but these issues could be alleviated by adding ω3 polyunsaturated fatty acids (PUFAs)
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RNase H-dependent antisense oligonucleotides (gapmer ASOs) represent a class of nucleic acid therapeutics that bind to target RNA to facilitate RNase H-mediated RNA cleavage, thereby regulating the expression of disease-associated proteins. Integrating artificial nucleic acids into gapmer ASOs enhances their therapeutic efficacy. Among these, amido-bridged nucleic acid (AmNA) stands out for its potential to confer high affinity and stability to ASOs.

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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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  • - The case involves a 59-year-old man with poorly differentiated lung carcinoma and a rare K601E mutation who showed limited response to the targeted drugs dabrafenib and trametinib after failing chemotherapy and immunotherapy.
  • - Although the patient had a significant initial response to the treatment, the tumor's regression lasted only 52 days before progressing, indicating a rapid development of resistance.
  • - A follow-up liquid biopsy revealed additional genetic changes associated with resistance, highlighting the complexities of treating K601E-mutant lung carcinoma and the need for improved molecular diagnostics and personalized therapy strategies.
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Non-electroactive bacteria (n-EAB), constituting the majority of known bacteria to date, have been underutilized in electrochemical conversion technologies due to their lack of direct electron transfer to electrodes. In this study, we established an electric wiring between n-EAB (gram-positive Bacillus subtilis and gram-negative Escherichia coli) and an extracellular electrode via a ferrocene-polyethyleneimine-based redox polymer (Fc-PEI). Chronoamperometry recordings indicated that Fc-PEI can transfer intracellular electrons to the extracellular electrode regardless of the molecular organization of PEI (linear or branched) and the membrane structure of bacteria (gram-positive or -negative).

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This study investigated the effects of white meat, such as chicken, intake combined with resistance training on muscle mass and strength in the elderly women, and whether the underlying mechanism involves changes in the gut microbiota. Ninety-three volunteers (age 59-79 years) were randomly allocated to sedentary control with placebo (Sed + PL) or chicken meat (Sed + HP) and resistance training with placebo (RT + PL) or chicken meat (RT + HP). Resistance training sessions were performed 3 d/week for 12 weeks using leg extensions and curls.

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Progressive pulmonary fibrosis (PPF), defined as the worsening of various interstitial lung diseases (ILDs), currently lacks useful biomarkers. To identify novel biomarkers for early detection of patients at risk of PPF, we performed a proteomic analysis of serum extracellular vesicles (EVs). Notably, the identified candidate biomarkers were enriched for lung-derived proteins participating in fibrosis-related pathways.

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The extraction of data that contribute to regulatory approval from real-world data (RWD) is difficult because of the lack of a standardized data format and extraction methodology. Additionally, when real-world evidence (RWE) is used as an external control group, the similarity between internal and external control data is not evaluated. To investigate the data extraction methodology for the external control data of rare molecular subtypes, we have initiated the "REALISE" study.

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In the realm of rare cardiac tumors, intimal sarcoma presents a formidable challenge, often requiring innovative treatment approaches. This case report presents a unique instance of primary intimal sarcoma in the left atrium, underscoring the critical role of genomic profiling in guiding treatment. Initial genomic testing unveiled a somatic, active mutation in ( N666K), accompanied by and amplifications.

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Background: Novel biomarkers (BMs) are urgently needed for bronchial asthma (BA) with various phenotypes and endotypes.

Objective: We sought to identify novel BMs reflecting tissue pathology from serum extracellular vesicles (EVs).

Methods: We performed data-independent acquisition of serum EVs from 4 healthy controls, 4 noneosinophilic asthma (NEA) patients, and 4 eosinophilic asthma (EA) patients to identify novel BMs for BA.

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Transient Receptor Potential Canonical 5 (T RP C5) and T RP C6 channels play critical physiological roles in various cell types. Their involvement in numerous disease progression mechanisms has led to extensive searches for their inhibitors. Although several potent T RP C inhibitors have been developed and the structure of their binding sites were mapped using cryo electron microscopy, a comprehensive understanding of the molecular interactions within the inhibitor binding site of T RP Cs remains elusive.

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  • Idiopathic pulmonary fibrosis (IPF) is a serious lung disease that leads to extensive lung scarring and has a grim outlook for patients, with unclear molecular mechanisms and their links to clinical signs.
  • Researchers created a Bayesian network using data from 206 IPF patients and 36 healthy controls, combining proteome data from serum, lab tests, and clinical findings to visualize relationships between biomarkers and symptoms.
  • Key findings identified specific biomolecules related to IPF, such as TGF-β signaling, fibrosis markers, and clinical symptoms, suggesting potential pathways for understanding the disease and developing targeted therapies.
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Topological gels possess structures that are cross-linked only via physical constraints; ideally, no attractive intermolecular interactions act between their components, which yields interesting physical properties. However, most reported previous topological gels were synthesized based on supramolecular interlocked structures such as polyrotaxane, for which attractive intermolecular interactions are essential. Here, we synthesize a water-soluble "molecular net" (MN) with a large molecular weight and three-dimensional network structure using poly(ethylene glycol).

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Understanding how a T-cell receptor (TCR) recognizes its specific ligand peptide is crucial for gaining an insight into biological functions and disease mechanisms. Despite its importance, experimentally determining TCR-peptide-major histocompatibility complex (TCR-pMHC) interactions is expensive and time-consuming. To address this challenge, computational methods have been proposed, but they are typically evaluated by internal retrospective validation only, and few researchers have incorporated and tested an attention layer from language models into structural information.

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  • The study investigates the link between gut microbiota and skeletal muscle function, quantity, and quality in Japanese adults, specifically targeting sarcopenia.
  • Conducted with 164 participants aged 35-80, the research found that the gut bacteria Bacteroides and Prevotella 9 were significantly associated with leg extension power (LEP) in individuals aged 60 and older.
  • The findings suggest a potential beneficial role of Bacteroides in leg muscle function for older adults, emphasizing the need for more research to understand the mechanisms behind this association.
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Drug discovery and development are aimed at identifying new chemical molecular entities (NCEs) with desirable pharmacokinetic profiles for high therapeutic efficacy. The plasma concentrations of NCEs are a biomarker of their efficacy and are governed by pharmacokinetic processes such as absorption, distribution, metabolism, and excretion (ADME). Poor ADME properties of NCEs are a major cause of attrition in drug development.

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