Publications by authors named "Yusuke Adachi"

Unlabelled: Endothelial Notch signaling is critical for tumor angiogenesis. Notch1 blockade can interfere with tumor vessel function but causes tissue hypoxia and gastrointestinal toxicity. Notch4 is primarily expressed in endothelial cells, where it may promote angiogenesis; however, effective therapeutic targeting of Notch4 has not been successful.

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This short-term survey examined the effect of body part pain on subjective and objective handball performance in Japanese male national handball athletes. Fourteen athletes participated in this study. Assessments of pain in 10 body parts and subjective performance ( and ) were performed using a visual analog scale from 0 to 10 over four consecutive training days.

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Aspartate supplementation has been reported to improve endurance performance by facilitating the tricarboxylic acid cycle flux. The present study was performed to investigate the effects of aspartate supplementation on repeated-sprint performance and blood pH. Following an overnight fast, fourteen healthy males completed three sets of 10 × 6 s maximal sprints after consuming sodium L-aspartate (ASP) or placebo (PLA), in a double-blind manner.

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Article Synopsis
  • Aerobic exercise improves cognitive functions like executive function (EF) and memory recognition (MR) and boosts brain-derived neurotrophic factor (BDNF) levels.
  • In this study, 22 young men took either essential amino acid (EAA) supplements or a placebo before doing moderate-intensity cycling.
  • Results showed that EAA supplementation led to improved EF post-exercise, but did not significantly affect MR or BDNF levels.
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Rice is a staple food in the Asian region and one of the world's major energy sources. Testosterone is a steroid hormone that maintains physical, sexual, and cognitive ability, and its decline causes health problems like late-onset hypogonadism. Evaluation of various grain extracts showed rice bran to stimulate testosterone secretion from Leydig model cells.

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Most blood vessels are surrounded by adipose tissues known as perivascular adipose tissue (PVAT). Emerging experimental data have implicated the potential involvement of PVAT in the pathogenesis of cardiovascular disease: PVAT might be a source of inflammatory mediators under pathological conditions such as metabolic disorders, chronic inflammation, and aging, leading to vascular pathologies, while having vasculo-protective roles in a healthy state. PVAT has been also gaining attention in human disease conditions.

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  • Researchers created a mouse model using the Cre-loxP system that specifically inactivates non-nuclear signaling of the estrogen receptor-α in endothelial cells.
  • In this modified mouse model, the protective effects of estrogen against mechanical vascular injury were significantly reduced.
  • The findings highlight the crucial importance of non-nuclear signaling of endothelial estrogen receptor-α in providing vascular protection from estrogen.
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Computational chemistry is useful in synthetic organic chemistry, as it can be used not only to analyze reaction mechanisms, but also to calculate biosynthetic pathways and to plan and evaluate strategies for total syntheses. Here we report the computation-guided total synthesis of vitisinol G, a resveratrol dimer.

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Joint problems impair performance during exercise and daily activities and influence quality of life. The present study aimed to examine the effects of a combination of six non-essential amino acids (6AA) on joint conditions in an adult population. A total of 50 participants aged between 20 and 64 years with joint discomfort but no diagnosed joint disorder were randomly and blindly assigned to a control or 6AA group.

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  • - Vascular injury triggers a transformation in perivascular adipose tissue (PVAT) into a brown adipose tissue-like state, known as beiging, which helps regulate inflammation and vascular remodeling.
  • - In mouse studies, the accumulation of macrophages in PVAT leads to this beiging process, with genetic inhibition of beiging resulting in worse inflammation and vascular changes, while promoting beiging reduces these negative effects.
  • - Researchers found that the beiging of PVAT, particularly the secretion of neuregulin 4 (Nrg4) from these cells, plays a crucial role in activating macrophages to resolve inflammation, suggesting potential new treatments for atherosclerosis based on manipulating PVAT functions.
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Heart failure with preserved ejection fraction (HFpEF), characterized by diastolic dysfunction and insufficient exercise capacity, is a growing health problem worldwide. One major difficulty with experimental research on HFpEF is the lack of methods to consistently detect diastolic dysfunction in mouse models. We developed a pacing-controlled pressure-volume (PV) loop protocol for the assessment of diastolic function at different heart rates in mice and tested if the protocol could detect diastolic dysfunction specific to a HFpEF model.

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Although computational simulation-based natural product syntheses are in their initial stages of development, this concept can potentially become an indispensable resource in the field of organic synthesis. Herein we report the asymmetric total syntheses of several resveratrol dimers based on a comprehensive computational simulation of their biosynthetic pathways. Density functional theory (DFT) calculations suggested inconsistencies in the biosynthesis of vaticahainol A and B that predicted the requirement of structural corrections of these natural products.

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Combination therapies consisting of immune checkpoint inhibitors plus anti-VEGF therapy show enhanced antitumor activity and are approved treatments for patients with renal cell carcinoma (RCC). The immunosuppressive roles of VEGF in the tumor microenvironment are well studied, but those of FGF/FGFR signaling remain largely unknown. Lenvatinib is a receptor tyrosine kinase inhibitor that targets both VEGFR and FGFR.

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  • Significant advancements have been made in understanding cardiovascular diseases (CVDs), enhancing prevention and prognosis efforts.
  • Despite extensive research on sex differences in CVDs, the full scope of these differences is still not completely understood.
  • Recent clinical studies highlight sex-specific responses to heart failure treatments and hormone replacement therapy, shedding light on how these differences impact cardiovascular tissue maintenance and health.
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Immune checkpoint blockade (ICB) therapy has substantially improved the outcomes of patients with many types of cancers, including renal cell carcinoma (RCC). Initially studied as monotherapy, immunotherapy-based combination regimens have improved the clinical benefit achieved by ICB monotherapy and have revolutionized RCC treatment. While biomarkers like PD-L1 and tumor mutational burden (TMB) are FDA approved as biomarkers for ICB monotherapy, there are no known biomarkers for combination immunotherapies.

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  • This study investigates how percutaneous coronary intervention (PCI) can lead to left ventricular reverse remodelling (LVRR) in patients with coronary artery disease (CAD) and reduced left ventricular ejection fraction (LVEF).
  • Among 4394 patients who underwent PCI, 286 with LVEF under 50% were analyzed, and LVRR was defined as a specific reduction in heart volume and improvement in ejection fraction after 6 months.
  • Results indicated that intervention on the unprotected left main coronary artery (LMCA) was positively linked to LVRR, while factors like prior PCI, in-stent restenosis, and new stenosis were associated with lower chances of LVRR occurring.
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Some clinical trials showed that omega-3 fatty acid (FA) reduced cardiovascular events, but it remains unknown whether omega-3 FA supplementation changes the composition of FAs and their metabolites in the heart and how the changes, if any, exert beneficial effects on cardiac structure and function. To clarify these issues, we supplied omega-3 FA to mice exposed to pressure overload, and examined cardiac structure and function by echocardiography and a proportion of FAs and their metabolites by gas chromatography and liquid chromatography-tandem mass spectrometry, respectively. Pressure overload induced cardiac hypertrophy and dysfunction, and reduced concentration of all FAs' components and increased free form arachidonic acid and its metabolites, precursors of pro-inflammatory mediators in the heart.

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  • Premenopausal women experience lower cardiovascular disease (CVD) mortality compared to men, suggesting estrogen's protective effects against CVD development and progression.
  • Although previous large studies on postmenopausal hormone replacement therapy showed no cardiovascular advantages, the recent ELITE study found that estrogen can reduce atherosclerosis based on when the therapy is started.
  • This research emphasizes the need to explore how estrogen operates, particularly its non-nuclear actions related to NO-cGMP signaling pathways in CVD.
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Right ventricular infarction (RVI) is a complication following inferior ST-elevation myocardial infarction (STEMI). The aim of the present study was to investigate the clinical outcomes of RVI in the contemporary primary percutaneous coronary intervention (PCI) era. The primary endpoint was in-hospital death, and the secondary endpoint was major adverse cardiac events (MACE), defined as the composite of cardiovascular death, re-hospitalization for heart failure, and non-fatal acute myocardial infarction (AMI).

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High expression of vascular endothelial growth factor (VEGF) in patients with hepatocellular carcinoma (HCC) is associated with poor prognosis. Here, we investigated the antitumor activity of lenvatinib, a multiple receptor tyrosine kinase inhibitor, in VEGF-overexpressing HCC models. In human umbilical vein endothelial cells, lenvatinib showed potent inhibitory activities against VEGF-induced proliferation and VEGF/basic fibroblast growth factor-induced tube formation.

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Background: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited myocardial disease characterized by fibrofatty replacement and ventricular arrhythmias. ARVC is believed to be a disease of the young, with most cases being diagnosed before the age of 40 years. We report here a case of newly diagnosed ARVC in an octogenarian associated with a pathogenic variant in the plakophilin 2 gene (PKP2).

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To assess the use of plasma free amino acids (PFAAs) as biomarkers for metabolic disorders, it is essential to identify genetic factors that influence PFAA concentrations. PFAA concentrations were absolutely quantified by liquid chromatography-mass spectrometry using plasma samples from 1338 Japanese individuals, and genome-wide quantitative trait locus (QTL) analysis was performed for the concentrations of 21 PFAAs. We next conducted a conditional QTL analysis using the concentration of each PFAA adjusted by the other 20 PFAAs as covariates to elucidate genetic determinants that influence PFAA concentrations.

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Aim: To examine the association between depressive symptoms and plasma amino acid related metaboli in older adults.

Methods: A total of 152 older adults aged ≥65 years, residing in Niigata, Japan, were used for analysis. We evaluated depressive symptoms using the Geriatric Depression Scale-15, which has been validated in older community-dwelling individuals, and used a cut off score of ≥5 to classify participants as having depressive symptoms.

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Execution of cognitive functions is orchestrated by a brain-wide network comprising multiple regions. However, it remains elusive whether the cortical laminar pattern of inter-areal interactions exhibits dynamic routings, depending on cognitive operations. We address this issue by simultaneously recording neuronal activities from area 36 and area TE of the temporal cortex while monkeys performed a visual cued-recall task.

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