Publications by authors named "Shida T"

The dynamic balance between formation and disaggregation of amyloid fibrils is associated with many neurodegenerative diseases. Multiple chaperones interact with and disaggregate amyloid fibrils, which impacts amyloid propagation and cellular phenotypes. However, it remains poorly understood whether and how site-specific binding of chaperones to amyloids facilitates the concerted disaggregation process and modulates physiological consequences in vivo.

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New insights into the metabolic mechanisms of frailty are needed. This study aimed to identify serum metabolites linked to frailty phenotype and its component through gas chromatography-mass spectrometry metabolomic analysis among community-dwelling older individuals. An exploratory, cross-sectional case-control study.

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  • This study explores how phase angle (PhA), derived from bioelectrical impedance analysis, relates to chronic inflammation markers in older adults, highlighting its potential as a reflection of cell membrane health and fluid balance.
  • A total of 1664 participants were analyzed, revealing significant associations between abnormal levels of C-reactive protein and interleukin-6 with both whole-body and leg PhAs in men, particularly in those without chronic inflammation-related diseases.
  • The findings suggest that while PhA can indicate inflammation in older men, it may require additional context for effective inflammation identification in women.
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Elbow injuries related to the throwing motion in baseball during the growth period present difficulties for early detection and may cause serious future disabilities. This study aimed to comprehensively determine the characteristics and clinical assessment of elbow pain in youth baseball players. Two hundred and sixteen young baseball players underwent elbow medical examination.

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Objective: Metastatic colorectal cancer with KRAS wild type is treated using a range of drug regimens, including fluorouracil, irinotecan, and Leucovorin(FOLFIRI)plus bevacizumab(Bmab), cetuximab(Cmab), or panitumumab(Pmab). The present study aimed to identify the optimal regimen using a decision analysis method, in combination with clinical and economic evidence.

Method: A simple Markov model with a monthly cycle time was constructed.

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  • Smartphone apps designed to improve physical, cognitive, and social activities through mobile health (mHealth) technology are gaining popularity, especially for older adults with frailty.
  • A 13-week study tested the feasibility and acceptability of an mHealth app with 34 participants (5 frail and 29 pre-frail), finding high usage rates and positive feedback about the app's health benefits.
  • Results showed improvements in both frailty scores and step counts after the intervention, suggesting that the app could effectively support older adults dealing with frailty.
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Objective: This study aimed to develop a simpler approach for diagnosing sarcopenia by using only bioelectrical impedance vector analysis parameters.

Methods: The study design was a cross-sectional study. The research was conducted based on the Itabashi Longitudinal Study on Aging, a community-based cohort study, with data collected from the 2022 and 2023 surveys in Itabashi Ward, Tokyo, Japan.

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Background: Aspiration pneumoniae remains a major health concern, particularly in the older population and has poor prognosis; however, the concept itself remains vague worldwide. This study aimed to determine the actual situation and characteristics of aspiration pneumonia from 2005 to 2019 in Nagasaki Prefecture, Japan.

Methods: Cases of aspiration pneumonia that occurred in the Nagasaki Prefecture between 2005 and 2019 were analyzed using emergency transportation records.

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Introduction: We aimed to determine the effects of exercise on cell-free DNA (cfDNA) levels and concentration changes during the menstrual cycle in participants with regular menstrual cycles and no exercise habits.

Methods: Eleven sedentary female students with regular menstrual cycles and ovulation performed bicycle exercises at 60% VO for 30 min during the menstrual, ovulatory, and luteal phases. Blood samples were collected before (Pre), immediately after (Post 0), 30 min after (Post 30), and 60 min after (Post 60) exercise.

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  • - The study aimed to compare serum metabolites in individuals with sarcopenia to those without, defining sarcopenia based on specific criteria regarding muscle mass and strength.
  • - Metabolomic analysis revealed that individuals with sarcopenia had higher levels of hypoxanthine, galactose, and mannose, while also showing lower levels of triethanolamine and homogentisic acid compared to the non-sarcopenic group.
  • - The findings suggest that hypoxanthine could serve as a potential biomarker for sarcopenia and offer new perspectives on the underlying processes of the condition, potentially aiding in early detection.
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  • The relationship between mRNA and rRNA transcription in cancer is not well understood, focusing on the interaction of RNA polymerase subunits and transcription factors.
  • Research analyzed mRNAs and rRNAs impacted by the FIR protein and its variant FIRΔexon2, highlighting their competitive interaction with the transcription factor P62.
  • A potential cancer treatment involving the compound BK697 was identified, which inhibits tumor cell growth by targeting FIRΔexon2 and suppressing rRNA production, suggesting a new pathway for regulating transcription in cancer.
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Aim: Muscle mass and strength correlate with cognitive function; however, it remains unclear whether dynapenia (i.e., muscle weakness with preserved muscle mass) is relevant.

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Background: Palbociclib and endocrine therapy has been approved to treat hormone receptor-positive/human epidermal growth factor receptor 2-negative inoperable or recurrent breast cancer in Japan. However, this cotherapy imposes an economic burden on both patients and society because of its high cost. In this study, we assessed the cost-effectiveness of cotherapy with palbociclib and fulvestrant compared to fulvestrant monotherapy for inoperable or recurrent breast cancer.

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Introduction: This study aims to evaluate the effects of medication, and the freezing of gait (FoG) on the kinematic and kinetic parameters of gait in people with Parkinson's disease (pwPD) compared to neurologically healthy.

Methods: Twenty-two people with a clinical diagnosis of idiopathic PD in ON and OFF medication (11 FoG), and 18 healthy participants (control) were selected from two open data sets. All participants walked on the floor on a 10-meter-long walkway.

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Purpose: Conditioned pain modulation (CPM) is a measurement of the descending pain pathways that inhibit or facilitate afferent noxious stimuli. The reliability of CPM in older individuals with or without chronic musculoskeletal pain has not been sufficiently reported. This study aimed to examine the inter-session reliability of CPM in these cohorts and the factors in CPM reliability.

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Background: To our knowledge, there is no Parkinson's disease (PD) gait biomechanics data sets available to the public.

Objective: This study aimed to create a public data set of 26 idiopathic individuals with PD who walked overground on ON and OFF medication.

Materials And Methods: Their upper extremity, trunk, lower extremity, and pelvis kinematics were measured using a three-dimensional motion-capture system (Raptor-4; Motion Analysis).

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Patients with melanoma with activating BRAF mutations (BRAF V600E/K) initially respond to combination therapy of BRAF and MEK inhibitors. However, their clinical efficacy is limited by acquired resistance, in some cases driven by amplification of the mutant BRAF gene and subsequent reactivation of the MAPK pathway. DS03090629 is a novel and orally available MEK inhibitor that inhibits MEK in an ATP-competitive manner.

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Purpose: Immobilization osteopenia is a major healthcare problem in clinical and social medicine. However, the mechanisms underlying this bone pathology caused by immobilization under load-bearing conditions are not yet fully understood. This study aimed to evaluate sequential changes to the three-dimensional microstructure of bone in load-bearing immobilization osteopenia using a fixed-limb rat model.

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Motilin is a 22-amino-acid gastrointestinal (GI) hormone and is involved in the regulation of GI motility through binding to GPR38, the motilin receptor which is expressed on smooth muscle cells in the GI tract. Therefore, GPR38 agonists are expected to be novel gastrointestinal prokinetic agents for the treatment of functional gastrointestinal disorders such as gastroparesis and chronic constipation. We identified a series of N-methylanilide derivatives as novel non-macrolide GPR38 agonists.

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  • Fatty pancreas (FP) involves fat accumulation in the pancreas and is linked to metabolic issues, yet it is not officially recognized in Japan's cancer screening guidelines.
  • In a study of 919 individuals, 46.8% were found to have FP, with a higher prevalence in men and those suffering from lifestyle-related diseases, especially fatty liver disease.
  • Severe FP was connected to older age, larger waist circumference, higher triglycerides and glucose levels, and lower serum amylase, indicating significant associations between FP severity and liver health.
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Molybdenum disulfide (MoS) mono/bilayer have been systematically investigated using atmospheric-pressure mist chemical vapor deposition (mist CVD) from (NH)MoSdissolved in N-methyl-2-pyrrolidone as a precursor. Film deposition was performed by alternating MoSmist storage within a closed chamber and mist exhaust, i.e.

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  • Hepatic fibrosis is a critical factor in assessing the progression of non-alcoholic fatty liver disease (NAFLD), and this study aimed to explore how diet and physical activity influence this relationship.
  • A total of 349 participants were evaluated using FibroScan scores and provided information on their eating habits and physical activity levels through questionnaires.
  • Results indicated that those with advanced fibrosis consumed more fried foods and had lower physical activity, with a higher risk of fibrosis progression linked to frequent fried food intake and a significant decrease in risk associated with higher exercise levels.
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Immune thrombocytopenia (ITP) is an acquired autoimmune disorder characterized by antiplatelet antibodies and/or CD8 + T cells, resulting in the destruction of platelets and decreased platelet counts. that persistently colonizes the stomach causes various disorders, including extragastric diseases such as chronic ITP (cITP). Several studies have reported increased platelet counts in -infected cITP patients with eradication treatment and also the pathophysiological pathways involving cross-reaction of antibodies against with platelets, the modulation of Fcrγ receptors balance and others.

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