Publications by authors named "Hayashi S"

Graphene aerogels (GAs) with engineered architectures are a promising material for applications ranging from filtration to energy storage/conversion. However, current preparation approaches involve the combination of multiple intrinsically-different methodologies to achieve graphene-synthesis and architecture-engineering, complicating the entire procedure. Here, a novel approach to prepare GAs with engineered architectures based on the laser-upcycling of protein biowaste, hemoglobin, is introduced.

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REV7 is a multifunctional protein essential for promoting cellular tolerance to DNA damage. REV7 expression is associated with disease progression and prognosis in several human malignant tumors. This study aimed to evaluate the clinical and biological significance of REV7 in gastric adenocarcinoma (GAD).

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Background: Local anesthetic systemic toxicity (LAST) is a rare but potentially life-threatening complication. Under general anesthesia, neurological signs are often masked, delaying diagnosis and increasing the risk of sudden cardiovascular collapse. Therefore, early detection methods are critically needed.

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Objectives: Cyclosporine A promotes gingival fibrosis by enhancing the proliferation of gingival fibroblasts, leading to gingival overgrowth. The population of gingival fibroblasts is regulated by cell cycle machinery, which balances cell growth and inhibition. Cells that detect DNA damage pause at the G1/S checkpoint to repair the damage instead of progressing to the S phase.

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REV7 is a multifunctional protein involved in the DNA damage response, cell cycle regulation, gene expression, or primordial germ cell maintenance. REV7 expression in tumor cells is associated with clinical aggressive features and chemoresistance in several human malignancies, however, the clinicopathological significance of REV7 in lung adenocarcinoma (LUAD) has not been studied yet. In this study, we investigated the significance of REV7 expression in LUAD using clinical materials and cell lines.

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Introduction: Thigh pain, aseptic loosening, and failure after total hip arthroplasty has been reported. Therefore, this study examines the impact of femoral stem alignment on periprosthetic bone mineral density (BMD) in THA using the Avenir Complete cementless stem, focusing on the role of precise stem alignment in maintaining proximal femoral BMD.

Materials And Methods: Consecutive patients who received the Avenir Complete stem via mini anterolateral approach in the supine position between March 2019 and March 2022 were included.

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Cancer stem cells (CSCs) have been implicated as critical mediators in the progression, chemoresistance and metastatic capabilities of diverse malignancies, including osteosarcoma (OS). The authors have succeeded in generating CSC‑like cells (MG‑OKS) from the OS cell line MG‑63 by transducing defined factors. A significant increase in small proline‑rich protein 1A (SPRR1A) expression, a cross‑linked envelope protein in keratinocytes, was observed in MG‑OKS cells.

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Objective The healthcare management support program for public assistance recipients has been mandated at all welfare centers since 2021 because the importance of healthcare support for them has recently been recognized in Japan. However, the factors that hinder preventive healthcare service utilization have not been empirically investigated. This survey aimed to identify the relationship between health checkups, vaccination services, and social isolation among people on public assistance.

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Background: The superior mesenteric vein appears as a fusion between irregularly-shaped slits of the midgut mesentery tissue at 5-6 weeks. In contrast, there might be no report when and how the inferior mesenteric vein (IMV) develops. We aimed to find the human initial IMV.

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Introduction: The purpose of this study was to compare leg length discrepancies (LLD) between simultaneous and staged bilateral total hip arthroplasty (BTHA).

Materials And Methods: This retrospective cohort study included 150 consecutive patients who underwent BTHA (60 simultaneous and 90 staged BTHA). To adjust for preoperative patient characteristics between groups, 1:1 propensity score matching was performed based on age, sex, body mass index, American Society of Anesthesiologists Physical Status, Tönnis classification, Crowe classification, preoperative range of motion (flexion and abduction), LLD, and Harris Hip Score (HHS).

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C-mannosylation is a unique type of glycosylation in which a mannose is added to tryptophan in a protein. However, the biological function of C-mannosylation is still largely unknown. AXL is a receptor tyrosine kinase, and its overexpression contributes to tumor malignancy.

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Amide hydrogenation is an important process for producing amines, with the development of efficient heterogeneous catalysts relying on the creation of bimetallic active sites where the two components interact synergistically. In this study, we develop a method for preparing catalysts using ligand-functionalized organometallic polyoxometalates by synthesizing a Rh-Mo organometallic polyoxometalate, [(RhCp)MoO] (Cp = C(CH)(COOCH)), with Rh-O-Mo interfacial structures and ethoxycarbonyl-functionalized ligands as a catalyst precursor. The activity of supported Rh-Mo catalysts for amide hydrogenation depend on the precursor used, with [(RhCp)MoO] showing the highest activity, followed by [(RhCp*)MoO] (Cp* = C(CH)), and then RhCl combined with (NH)[MoO]·4HO.

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Background: The Apple Watch (AW) can record single-lead electrocardiograms (ECGs) and has been investigated for arrhythmia detection. In this study we evaluated its accuracy in identifying the origin of premature ventricular contractions (PVCs) vs. standard 12-lead ECGs.

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It has recently become clear that the gut microbiota influence intestinal motility, intestinal barrier function, and mucosal immune function; therefore, the gut microbiota are deeply involved in the maintenance of intestinal homeostasis. The effects of the gut microbiota on the enteric nervous system (ENS) in the adult intestine, however, remain poorly understood. In the current study, we investigated the effects of the gut microbiota on the ENS.

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Unlabelled: The enteric nervous system (ENS) continues to be exposed to various disturbances throughout life, which causes apoptosis in the ENS. Therefore, it is assumed that neurogenesis is induced to maintain the neuronal network in the adult ENS. However, these underlying mechanisms are largely unknown.

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Article Synopsis
  • Suboptimal outcomes in unstable pertrochanteric fractures may be influenced by muscular factors, particularly weakness in the gluteal muscles, rather than just bone integrity.
  • The study aimed to investigate the correlation between gluteal muscle size and density in patients with stable versus unstable fractures, hypothesizing that weaker muscles would lead to more unstable fractures.
  • A retrospective analysis of 111 geriatric patients with pertrochanteric fractures was conducted, assessing demographic data and muscle metrics, using multivariate logistic regression to identify predictors of fracture stability.
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Data-driven material research for property prediction and material design using machine learning methods requires a large quantity, wide variety, and high-quality materials data. For battery materials, which are commonly polycrystalline, ceramics, and composites, multiscale data on substances, materials, and batteries are required. In this work, we develop a data network composed of three interlinked databases, from which we can obtain comprehensive data on substances such as crystal structures and electronic structures, data on materials such as chemical composition, structure, and properties, and data on batteries such as battery composition, operation conditions, and capacity.

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Article Synopsis
  • Polyarteritis nodosa (PAN) is a type of vasculitis that causes inflammation of medium to small arteries, potentially affecting multiple organs, including the testes.
  • Angiography can be used as a diagnostic method instead of tissue biopsy or surgery.
  • This text discusses a case where angiographic findings show involvement of the testicular arteries in PAN, which has not been reported in previous studies.
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Mitogen-inducible gene 6 (Mig6) is a cellular inhibitor of epidermal growth factor receptor (EGFR) that binds directly to the EGFR kinase domain and interferes with signaling. Reduced Mig6 expression is correlated with increased EGFR activity in multiple cancer models. Here, we investigated whether disease-associated point mutations could reduce the inhibitory potency of Mig6.

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Background And Aims: Endoscopic submucosal dissection (ESD) is a minimally invasive treatment for early gastric cancer. However, post-ESD bleeding presents significant risks. Closing mucosal defects following ESD may reduce the incidence of post-ESD bleeding.

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Objective: Occupational therapy aims at enhancing people's life satisfaction, it is important to focus on the occupational gap between "what they want to do" and "what they actually do." This study aimed to describe the characteristics of occupational gap of older adults with care needs who are residing at home, and clarify how the occupational gap patterns classify their life satisfaction.

Method: The Occupational Gap Questionnaire was used to assess the occupational gaps of 209 older adults with care needs (80.

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Gardenia blue (GB), a widely used plant-derived food color is prepared by reaction of genipin, the aglycone of geniposide, with protein hydrolysate. Recent animal studies investigating GB toxicity have indicated blue coloration in the gastrointestinal tract, kidneys and mesenteric lymph nodes in rodents following dietary administration. This study investigated the uptake and disposition of [C]GB in male and female rats and mice administered 100 or 1000 mg/kg by gavage.

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Article Synopsis
  • The study evaluated the feasibility of gasless laparoscopic myomectomy (GLM) using the subcutaneous steel wire-lifting method (GLMS) in 1301 patients from 2008 to 2021.
  • Results indicated that while GLMS had longer operation times and removed more and larger fibroids compared to traditional laparoscopic myomectomy, it also had lower intraoperative blood loss and acceptable complication rates.
  • The findings suggest that GLMS is a safe and effective option for fibroid removal, especially in regions with lower BMI averages, though patients with severe obesity may face higher risks.
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Background: Thymic mucoepidermoid carcinomas (MECs) are extremely rare malignant neoplasms. We describe a rare case of a MEC with a high histological grade in a patient who survived for more than 20 years after the initial surgery, focusing on the clinical course and recurrence pattern.

Case Presentation: A woman underwent surgical resection of a high-grade thymic MEC at another hospital 21 years ago.

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