Publications by authors named "Yuki Sakai"

Objective classification biomarkers that are developed using resting-state functional magnetic resonance imaging (rs-fMRI) data are expected to contribute to more effective treatment for psychiatric disorders. Unfortunately, no widely accepted biomarkers are available at present, partially because of the large variety of analysis pipelines for their development. In this study, we comprehensively evaluated analysis pipelines using a large-scale, multi-site fMRI dataset for major depressive disorder (MDD).

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The order or disorder of electrons is fundamental to materials properties and also provides simple analogues to the different states of matter. A charge ordered (CO) insulating state, analogous to a crystalline solid, is observed in many mixed valence materials. On heating, this melts to a charge liquid (metallic) phase, often with interesting associated physics and functions such as the Verwey transition of FeO, colossal magnetoresistances in manganites (e.

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The aim of this study was to investigate the incidence and severity of oral adverse events in outpatients receiving cancer drug therapy and the need for oral management by medical professionals. A questionnaire-based survey was conducted among patients who received cancer drug therapy at our hospital between 1 and 30 September 2022. The incidence and severity of oral adverse events and the need for intervention by medical professionals were investigated.

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We report synthesis and optical properties of the dimers of boron β-dialdiminate (DAI) complexes with different connection manners. The series of dimers, o-, m-, p- and d-BisDAI, were prepared, and their photophysical properties were compared with the single unit, DAI. It was found that the dimers show characteristic optical properties: o-BisDAI showed bathochromic shifts in absorption and emission spectra and emission quenching because of the through-space interactions, while the photophysical properties of m-BisDAI and DAI were almost identical.

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  • Mycobacterium tuberculosis has a thick lipid cell wall that elicits immune responses in humans, primarily through adjuvants acting on innate immune receptors like C-type lectin receptors.
  • Recent research identified trehalose monomycolate (TMM), a major mycobacterial adjuvant, as a trigger for human T cells with a specific unique ɑβTCR, mediated by the antigen-presenting molecule CD1b.
  • TMM-specific T cells are found in non-infected individuals and are more prevalent in active tuberculosis patients, indicating the existence of a pre-formed CD4+ T cell subset that recognizes TMM, suggesting a need to re-evaluate how adjuvants function.
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Objectives: The purpose of this study was to compare the image quality of ultra-high-resolution CT (U-HRCT) with that of conventional multidetector row CT (convCT) and demonstrate its usefulness in the dentomaxillofacial region.

Methods: Phantoms were helically scanned with U-HRCT and convCT scanners using clinical protocols. In U-HRCT, phantoms were scanned in super-high-resolution (SHR) mode, and hybrid iterative reconstruction (HIR) and filtered-back projection (FBP) techniques were performed using a bone kernel (FC81).

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A 69-year-old man with a history of thymoma resection was diagnosed with COVID-19 pneumonia. Initially, the patient responded well to molnupiravir, but he experienced a relapse. Subsequent steroids for COVID-19-related organizing pneumonia (OP) led to temporary improvement, but his condition deteriorated when the steroids were tapered off.

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Luminescent materials that respond to changes in microscopic chemical conditions are essential for visualizing and evaluating molecular environments. Boron complexes are often employed as robust scaffolds for constructing such responsive systems because of their inherent stimuli-responsive properties. However, in the case of nonresponsive luminophores, the absence of these intrinsic features limits their range of applications.

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  • Autism spectrum disorder (ASD) is a complex lifelong condition, and this study aimed to create a classifier using resting-state fMRI from a large group of 730 Japanese adults to identify its neural and biological features.
  • The developed classifier showed effectiveness in differentiating individuals with ASD from neurotypical controls across various countries, including the US and Belgium, and it also applied to children and adolescents.
  • Importantly, the study found that the classifier identified crucial functional connections related to social interaction difficulties and neurotransmitter activity, and it linked ASD with similar neurobiological factors seen in ADHD and schizophrenia, enhancing understanding of related mental health disorders.
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  • * Despite urgent medical interventions, her condition worsened, and an autopsy revealed pleomorphic carcinoma in the right lung, with associated complications like stenosis of the right pulmonary artery and diffuse alveolar damage in the left lung.
  • * The findings highlight that unilateral Acute Respiratory Distress Syndrome (ARDS) is very rare but may occur in cases of lung cancer where there is compression of the pulmonary artery, leading to impaired lung function only on one side.
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  • * A new strategy enhances the thermal conductivity and machinability of negative thermal expansion alloy (Zr,Nb)Fe by incorporating eutectic copper networks, resulting in over 200% increased thermal conductivity and improved mechanical strength.
  • * The addition of copper modifies the (Zr,Nb)Fe composition, leading to better thermal management and stability across a wider temperature range, while also improving bonding and stress handling capabilities of the alloy.
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The rare physical property of negative thermal expansion (NTE) is intriguing because materials with a large NTE over a wide temperature range can serve as high-performance thermal expansion compensators. However, the applications of NTE are hindered by the fact that most of the available NTE materials show small magnitudes of NTE, and/or NTE occurs only in a narrow temperature range. Herein, for the first time, we investigated the effect of anion substitution instead of general Pb/Ti-site substitutions on the thermal expansion properties of a typical ferroelectric NTE material, PbTiO.

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  • Tourette syndrome (TS) is a neuropsychiatric disorder marked by tic movements, and deep brain stimulation (DBS) is considered for severe cases unresponsive to other treatments.
  • A study involving 14 patients (13 men, 1 woman) showed significant improvements in tic severity and impairment scores after undergoing DBS targeted at the centromedian thalamus, with follow-ups averaging 2.3 years.
  • While DBS proved effective, challenges such as patient follow-up issues and surgical complications (e.g., lead misplacement, hemorrhage) highlight the need for precise surgical techniques and understanding of brain anatomy to maximize treatment success.
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  • - Glucose is crucial for zebrafish development, but many oviparous animals, including zebrafish, have limited maternal glucose in their yolk, prompting the need for alternative glucose sources.
  • - Researchers discovered that developing cloudy catshark, an elasmobranch, utilizes a tissue similar to zebrafish's yolk syncytial layer (YSL) to perform gluconeogenesis, converting glycerol into glucose.
  • - The presence of gluconeogenic activities and related gene expressions in the catshark's YSL-like tissue suggests that similar metabolic processes for yolk utilization may be conserved across teleosts and elasmobranchs, paving the way for future studies on vertebrate evolution.
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  • * A multicenter study involving 191 older adults aimed to explore a screening method for predicting dysphagia (difficulty swallowing) and its link to aspiration pneumonia, using techniques like the modified Mallampati classification and the repetitive saliva swallowing test (RSST).
  • * The study found that those with a lower Mallampati classification (indicating a smaller tongue base) had a higher likelihood of pneumonia, suggesting this classification could be a useful tool for screening at-risk individuals.
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Liver metastases from pancreatic ductal adenocarcinoma (PDAC) are highly fatal. A rat-based patient-derived tumor xenograft (PDX) model is available for transcatheter therapy. This study aimed to create an immunodeficient rat model with liver xenografts of patient-derived primary PDAC and evaluate efficacy of hepatic arterial infusion chemotherapy with cisplatin in this model.

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COVID-19 vaccines have resulted in a remarkable reduction in both the morbidity and mortality associated with COVID-19. However, there are reports of endocrine rare clinical conditions linked to COVID-19 vaccination. In this report, we present a case of hypophysitis following COVID-19 vaccination and review the literature on this condition.

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Left-sided portal hypertension (LSPH) causes varices and splenomegaly due to splenic vein issues. Colonic varices are rare and lack standardized treatment. We report the successful treatment of colonic varices caused by LSPH, by addressing both the afferent and efferent veins.

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Magnetic refrigeration technology can achieve higher energy efficiency based on the magnetocaloric effect (MCE). However, the practical application of MCE materials is hindered by their poor mechanical properties, making them challenging to process into devices. Conventional strengthening strategies usually lead to a trade-off with refrigeration capacity reduction.

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an edible mushroom, has been reported to show many kinds of physiological functions. The present paper focused on reducing body weight, subcutaneous fat, and visceral fat gain in ovariectomized (OVX) mice. Using the fruiting body powder of the indoor cultivation (IT .

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The assessment of programmed death-ligand 1 (PD-L1) expression in esophageal squamous cell carcinoma (ESCC) has become increasingly important with the rise of immune checkpoint inhibitors (ICIs). However, challenges persist, including subjective interpretation and the unclear significance of staining intensity, as well as contrasting roles in tumoral and stromal regions. Our study enhances the understanding of PD-L1 in ESCCs by analyzing its expression in tumors and stroma with H-scores, highlighting its distinct clinicopathological impacts.

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Misfolding of mutant Cu/Zn-superoxide dismutase (SOD1) has been implicated in familial form of amyotrophic lateral sclerosis (ALS). A natively folded SOD1 forms a tight homodimer, and the dimer dissociation has been proposed to trigger the oligomerization/aggregation of SOD1. Besides increasing demand for probes allowing the detection of monomerized forms of SOD1 in various applications, the development of probes has been limited to conventional antibodies.

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