Publications by authors named "Kenichi Yoshida"

This study investigates whether climate change risk and corporate governance affect the decision to engage in green mergers and acquisitions (M&A), including the acquisition of green businesses and the divestiture of carbon-intensive businesses. The results show that firms in industries with high carbon dioxide (CO) emissions tend to acquire green businesses and divest carbon-intensive businesses. In particular, outside directors significantly promote decisions to sell carbon-intensive businesses.

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Purpose: To elucidate the clinical characteristics of rare orbital pigmented perivascular epithelioid cell tumors (PEComa) with () rearrangement through a literature review.

Observations: A 49-year-old female was referred to our hospital with a mass measuring 16 × 14 mm in the extraconal space of the right orbit. Suspecting hemangioma or distended hematoma clinically, the tumor was completely excised through the right nasal conjunctiva.

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Background: Preoperative chemotherapy for gastric cancer with obstructive symptoms traditionally requires bypass surgery.

Objective: To investigate the feasibility of preoperative enterostomy chemotherapy in patients with advanced gastric cancer who present with obstructive symptoms.

Methods: A total of 47 patients with cStage Ⅲ gastric cancer who underwent preoperative chemotherapy between April 2013 and May 2024 were included.

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A 67-year-old male presented with severe epigastric pain in May 2023 and was diagnosed with Stage Ⅲ advanced gastric cancer(cStage Ⅲ)in June. Due to indistinct boundaries between lymph node #8a and the pancreas, non-resectional chemotherapy and enterostomy were performed during a diagnostic laparotomy. The diagnosis was updated to sStage Ⅳ with cy1.

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Tobacco smoking and alcohol consumption are among the most significant, yet preventable, behavioral risk factors for cancer. In a recent article in Nature Genetics, Torrens and colleagues performed whole-genome sequencing of 265 head and neck cancer samples collected from 8 countries across Europe and South America. They investigated the mechanisms underlying head and neck cancer development using mutational signature analysis and driver mutation analysis, complemented by regression analysis with epidemiologic data.

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Many urinary free-glycan markers were identified in our previous studies. Here, the clinical utility of these markers was examined. Urine samples taken from 120 healthy subjects and 503 patients with various malignant tumors were analyzed.

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Owing to their high selectivity and low toxicity, synthetic cyclic peptides hold promise as bioactive therapeutics. The corresponding impurity analysis typically relies on reversed-phase high-performance liquid chromatography (RP-HPLC), which, however, often provides inaccurate results because of the abundance of chemically similar impurities. To bridge this gap, hydrophilic-interaction liquid chromatography (HILIC), a technique orthogonal to RP-HPLC, was herein used with an ultraviolet detector to analyze the impurities of four cyclic peptides.

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Purpose: To comprehensively summarize the magnetic resonance imaging (MRI) features of angiosarcomas presenting as Stewart-Treves syndrome (STS) through a retrospective case series and systematic review of previous publications.

Materials And Methods: We identified five patients with STS from our institutional database and 25 patients with STS from 15 publications through a systemic review. We reviewed the MR features of 30 patients with STS, including five males and 25 females with a mean age of 59.

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Introduction: The brain uses ketones, mainly 3-hydroxybutyrate (3-HB), as an alternative energy source. Therefore, oral intake of 3-HB may help maintain brain health. Previous studies indicated that achieving a maximum concentration (C) of 3-HB in plasma at 0.

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DNA is subject to continual damage, leaving each cell with thousands of individual DNA lesions at any given moment. The efficiency of DNA repair means that most known classes of lesion have a half-life of minutes to hours, but the extent to which DNA damage can persist for longer durations remains unknown. Here, using high-resolution phylogenetic trees from 89 donors, we identified mutations arising from 818 DNA lesions that persisted across multiple cell cycles in normal human stem cells from blood, liver and bronchial epithelium.

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As the first step toward understanding how NADPH levels are regulated in Bacillus subtilis, we sought to obtain mutant strains with enhanced NADPH levels. Our previous study demonstrated that in a strain of B. subtilis expressing bacterial luciferase derived from Photorhabdus luminescens, artificially enhancing NADPH levels enhanced luciferase luminescence in the colonies.

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After recent advances in sequencing technologies led to the discovery of novel genes associated with predisposition to hematological malignancies, studies have now shown that myeloid neoplasms associated with germline variants are more common than previously estimated. Based on these findings, myeloid neoplasms with germline predisposition have emerged as a unique category in the recent World Health Organization classification of Haematolymphoid Tumors. Clonal hematopoiesis is common in healthy individuals, particularly in older people.

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Bacillus velezensis S141 helps soybean establish specific symbiosis with strains of Bradyrhizobium diazoefficiens to form larger nodules and improve nitrogen fixation efficiency. In this study, we found that the dry weight of soybean roots increased significantly in the presence of S141 alone under drought conditions. Hence, S141 improved the root growth of soybean under limited water supply conditions.

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Small bowel adenocarcinoma (SBA) is a relatively rare disease that is difficult to detect in the early stages; therefore, it often has a poor prognosis. We present a rare case of SBA and multiple liver metastases in a patient who underwent curative resection combined with neoadjuvant chemotherapy (NAC). A 70-year-old woman presented to the emergency department complaining of abdominal pain and bloating.

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Recent advances in sequencing technologies have clarified the driver gene landscape in Philadelphia chromosomenegative (Ph-) myeloproliferative neoplasms (MPNs) and progressed understanding of MPN pathogenesis. Beyond mutations in the main three drivers of MPN, namely JAK2, MPL and CALR, somatic mutations in the epigenetic regulators and RNA splicing factors have been identified and their association with transformation to myelofibrosis and acute myeloid leukemia have been determined. Clonal expansion of hematopoietic cells with driver mutations (clonal hematopoiesis) has been detected in healthy individuals, especially in elderly people.

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Here we present a "breathing" vessel consisting of expanded polytetrafluoroethylene, which allows gas exchange but no liquid permeation. The bacterial culture inside needs only agitation to promote air supply. Using this setup, a Bacillus subtilis cell factory for scyllo-inositol production grew to produce scyllo-inositol efficiently.

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Article Synopsis
  • Acute myeloid leukemia (AML) often involves deletions of chromosome 7, which are linked to poor patient outcomes, but the full impact of other genetic changes related to this is not well understood.
  • Researchers analyzed genetic alterations in 519 AML patients, using whole-exome sequencing and a specialized gene panel, finding that mutations in TP53, which occurred in 33% of cases, were among the most common.
  • The study identified specific genes, like TP53 and PTPN11, that have a significant negative effect on overall and relapse-free survival, highlighting the complex relationship between chromosome 7 abnormalities and patient prognosis in AML.
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Article Synopsis
  • * A case study focusing on a 51-year-old man with advanced UPS showed significant positive response to the drug pazopanib, which targets multiple cancer-related proteins.
  • * Genomic analysis identified coamplification of specific genes linked to patient response; after 3 years on pazopanib, the tumor shrank, indicating this genetic profile may predict better treatment outcomes.
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The Gram-positive bacterium is extensively used in the industry for the secretory production of proteins with commercial value. To further improve its performance, this microbe has been the subject of extensive genome engineering efforts, especially the removal of large genomic regions that are dispensable or even counterproductive. Here, we present the genome-reduced strain IIG-Bs-27-39, which was obtained through systematic deletion of mobile genetic elements, as well as genes for extracellular proteases, sporulation, flagella formation, and antibiotic production.

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Unlabelled: Mesophilic enzymes, which are active at moderate temperatures, may dominate enzymatic reactions even in the presence of thermophilic crude enzymes. This study was conducted to investigate this hypothesis with mesophilic inositol dehydrogenases (IolG and IolX) produced in HTA426. To ensure the efficient production of mesophilic enzymes, we first screened for promoters induced at moderate temperatures using transcriptome analysis and identified four genes highly expressed at 30°C in the thermophile.

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Biosurfactants have remarkable characteristics, such as environmental friendliness, high safety, and excellent biodegradability. Surfactin is one of the best-known biosurfactants produced by . Because the biosynthetic pathways of biosurfactants, such as surfactin, are complex, mutagenesis is a useful alternative to typical metabolic engineering approaches for developing high-yield strains.

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Dermatofibrosarcoma protuberans (DFSP) is a locally aggressive superficial mesenchymal neoplasm characterized by monomorphic spindle-cell proliferation with a storiform pattern. It can demonstrate pigmentation, myxoid changes, myoid differentiation, plaque-like growth, and fibrosarcomatous features; its varied presentation often complicates diagnosis. We report an extremely rare case of fibrosarcomatous DFSP with features reminiscent of a pleomorphic hyalinizing angiectatic tumor (PHAT) in a 73-year-old male.

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