Publications by authors named "Takahata Y"

The growth plate is the primary site of longitudinal bone growth with chondrocytes playing a pivotal role in endochondral bone development. Chondrocytes undergo a series of differentiation steps, resulting in the formation of a unique hierarchical columnar structure comprising round, proliferating, pre-hypertrophic, and hypertrophic chondrocytes. Pre-hypertrophic chondrocytes, which exist in the transitional stage between proliferating and hypertrophic stages, are a critical cell population in the growth plate.

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The sulfate transporter gene SLC26A2 is crucial for skeletal formation, as evidenced by its role in diastrophic dysplasia, a type of skeletal dysplasia in humans. Although SLC26A2-related chondrodysplasia also affects craniofacial and tooth development, its specific role in these processes remains unclear. In this study, we explored the pivotal roles of SLC26A2-mediated sulfate metabolism during tooth development.

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Background: Embryonic craniofacial development involves several cellular and molecular events that are evolutionarily conserved among vertebrates. Vertebrate models such as mice and zebrafish have been used to investigate the molecular and cellular etiologies underlying human craniofacial disorders, including orofacial clefts. However, the molecular mechanisms underlying embryonic development in these two species are unknown.

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  • - A 65-year-old man receiving treatment for liver cancer developed severe symptoms including fever, movement difficulties, and aphasia, leading to coma upon hospital admission.
  • - After conducting tests that showed no malignancy or infection, he was diagnosed with encephalitis as a side effect of his treatment with atezolizumab and bevacizumab.
  • - Following steroid pulse therapy, the patient regained consciousness and mobility but experienced slight leg paralysis, ultimately being discharged to continue chemotherapy, highlighting the importance of early diagnosis and treatment for better outcomes in cases of encephalitis.
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Cytotoxic metabolites originating from the peripheral circulation can induce central nervous system complications associated with diabetes. Since a large proportion of these metabolites bind to plasma albumin, mechanisms for transporting albumin-metabolite complexes into the brain exist under diabetic conditions. Secreted protein acidic and rich in cysteine (SPARC) is one of the vesicular transport receptors responsible for albumin transport.

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  • Primary biliary cholangitis (PBC) is often linked to autoimmune diseases, and this study specifically looks at patients with PBC and CREST syndrome (PBC-CREST) to analyze their long-term outcomes compared to those with PBC alone.
  • The research involved 302 patients over several decades, revealing that PBC-CREST patients had significantly better liver transplant-free survival rates and lower risks of liver-related death compared to PBC-alone patients.
  • Moreover, the study's findings support the idea that having CREST syndrome serves as a protective factor against developing cirrhosis in PBC patients.
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  • The transcription factor Sox9 is crucial for the development of cartilage and its mutations lead to campomelic dysplasia (CD), a condition marked by skeletal deformities.
  • This study identified two enhancers, E308 and E160, which influence Sox9 expression; deleting both enhancers resulted in dwarfed mice and reduced Sox9 levels.
  • The research also uncovered that other chromatin regions can partially compensate for the loss of these enhancers, highlighting the complex regulation of the Sox9 gene in cartilage development.
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  • Primary biliary cholangitis (PBC) is an autoimmune liver disease that can result in severe complications, and this study investigates how myostatin levels relate to patient outcomes.
  • In a sample of 119 PBC patients, researchers found that serum myostatin was significantly lower than in healthy individuals, and lower levels of myostatin correlated with more severe disease and worse survival rates.
  • The study concludes that measuring myostatin levels could help predict clinical outcomes for PBC patients, particularly regarding liver complications and the need for transplants.
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  • A study investigated the link between short sleep duration and the development of non-alcoholic fatty liver disease (NAFLD) among 1,862 Japanese adults who were initially free of the condition.
  • Over a median follow-up of 41 months, it was found that 25.9% of participants developed NAFLD, with the highest rates among women sleeping less than 6 hours per night.
  • The results indicated that women with short sleep duration had a higher risk of developing NAFLD, suggesting that getting enough sleep may help prevent this condition.
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Aim: Myostatin is a myokine involved in muscle mass regulation. The associations between circulating myostatin levels and clinical characteristics in patients with acute liver failure (ALF) and late-onset hepatic failure (LOHF) are unclear.

Methods: In this retrospective study, 51 patients with ALF or LOHF were included.

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Some organisms have developed a mechanism called environmental sex determination (ESD), which allows environmental cues, rather than sex chromosomes or genes, to determine offspring sex. ESD is advantageous to optimize sex ratios according to environmental conditions, enhancing reproductive success. However, the process by which organisms perceive and translate diverse environmental signals into offspring sex remains unclear.

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Autoimmune hepatitis (AIH) is an immune disorder characterized by hypergammaglobulinemia, autoantibodies, and chronic active hepatitis on liver histology. However, immune cell population characteristics in AIH patients remain poorly understood. This study was designed to analyze peripheral blood mononuclear cell (PBMC) characteristics in AIH through single-cell RNA sequencing (scRNA-seq) and explore potential AIH-related molecular mechanisms.

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  • * Results showed that 24.5% of participants developed NAFLD, with significant differences noted in body mass index and liver enzyme levels between those with and without the disease.
  • * Key findings indicated that eating between meals and eating quickly increased the risk for NAFLD, while fast walking was found to be a protective factor, especially for women.
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We present a case of a 45-year-old woman diagnosed with interstitial pneumonia (IP) during a comprehensive breast cancer evaluation. Although the patient showed no obvious clinical symptoms of polymyositis or dermatomyositis, the presence of anti-glycyl-transfer ribonucleic acid synthetase antibodies confirmed anti-synthetase syndrome. The patient began methylprednisolone for treatment of the IP.

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  • Growth differentiation factor 5 (GDF5) is crucial for joint development and is linked to osteoarthritis, showing that it’s highly expressed in articular cartilage.
  • The study aimed to identify transcription factors that regulate Gdf5 expression, discovering 11 factors specifically expressed in the superficial zone of cartilage.
  • Among these, Hoxa10 was found to significantly influence Gdf5 expression, with experiments confirming its role in regulating Gdf5, highlighting the utility of Gdf5-HiBiT KI mice for studying this process.
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Objective: The prediction of prognosis in hepatocellular carcinoma patients is important for switching treatment. The association between circulating growth arrest-specific 6 levels and prognosis in hepatocellular carcinoma patients is unknown.

Methods: We retrospectively analysed the association between serum growth arrest-specific 6 levels and clinical findings in 132 patients with hepatocellular carcinoma.

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Background: Various stages of the food chain, from production to processing to distribution, can impact food safety. The concept of "food defense" has emerged as a countermeasure against intentional contamination of food with foreign substances. Although knowledge of food hygiene is common among consumers, there are currently no reports of consumer surveys on food defense.

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Background And Aim: Equol is a metabolite of soy isoflavone and has estrogenic activity. The incidence of non-alcoholic fatty liver disease (NAFLD) increases after menopause in women, which is thought to result in a decrease in estrogen. This study aimed to evaluate the association between equol and NAFLD.

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Therapy related-acute myeloid leukemia (t-AML) and myelodysplastic syndrome (t-MDS) are complications of chemotherapy and/or radiation therapy for malignant diseases. In this report, we describe a patient with advanced lung adenocarcinoma who developed autoimmune hemolytic anemia and MDS associated with a combination of atezolizumab and platinum-based chemotherapy. The patient showed progression from t-MDS to t-AML 20 months after the treatment was initiated.

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Immuno-mass spectrometry (MS) is a powerful method for the quantitative analysis of low-abundance proteins in biological specimens. In these procedures, collecting specifically and efficiently the target protein antigens from the antigen-antibody complex generated on the surface of nanocarrier beads is crucial and can be performed by hydrolyzing the proteins directly on the beads or after elution. Herein, we optimized the conditions of the immunoaffinity purification via elution using serum α-fetoprotein (AFP) as a model and its specific antibody immobilized covalently on magnetic beads.

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There is no standard method of bronchoscopic local therapy for tracheal tumours. We herein present a case involving a 61-year-old woman who was diagnosed with tracheal mucosa-associated lymphoid tissue lymphoma and underwent resection by a bronchoscopic high-frequency electrosurgical snare. Few reports to date have described such use of high-frequency electrosurgical snares; however, they are effective for the treatment of tracheal tumours, especially pedunculated tumours.

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In this essay, I summarize my research career, with reference to the early days of the Laboratory of Physical Anthropology (LPA) at Kyoto University led by Kinji Imanishi and Junichiro Itani. When I started conducting research on the sexual behavior of Japanese macaques in 1975, I made some unexpected observations. High-ranking males did not obtain high mating success.

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Background/aims: Immune checkpoint blockade has recently been reported to be effective in treating microsatellite instability (MSI)-high tumors. Therefore, sufficient sampling of histological specimens is necessary in cases of unresectable pancreatic cancer (UR-PC). This multicenter study investigated the efficacy of endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) using a Franseen needle for MSI evaluation in patients with UR-PC.

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Proinflammatory cytokines play critical roles in the pathogenesis of joint diseases. Using a mass spectrometry-based cloning approach, we identified Semaphorin 4D (Sema4D) as an inflammatory cytokine that directly promoted cartilage destruction. -deficient mice showed less cartilage destruction than wild-type mice in a model of rheumatoid arthritis.

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Clubroot resistance (CR) is an important trait in Chinese cabbage breeding worldwide. Although , the gene responsible for clubroot-resistance, has been cloned and shown to encode the NLR protein, its allelic variation and molecular function remain unknown. Here, we investigated the sequence variation and function of three alleles cloned from six CR F cultivars of Chinese cabbage.

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