Publications by authors named "Matsuzaki H"

Current guidelines recommend cardioverter-defibrillator (ICD) programming, including faster detection rates, longer detection durations, and strict discrimination for supraventricular tachycardia (SVT) to prevent unnecessary ICD treatment. This delayed-style ICD programming could lead to a rise in the possibility of VF undersensing. To avoid this risk, an innovative algorithm known as VF Therapy Assurance (VFTA; Abbott, Sylmar, CA) has been developed.

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Introduction: The present study aimed to investigate the prescribing patterns of anticholinergics (anti-AChR) or β3-adrenergic agonists (βA) in the pharmacotherapy of overactive bladder (OAB) and to evaluate the differences in the frequency of adverse events (AEs) between the two types of drugs using a large-scale medical claims database.

Methods: This cohort study was conducted using the JMDC claims database between May 2015 and April 2023. Patient characteristics, prescription and treatment patterns of anti-AChR and βA, and the incidence of AEs have been described.

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A general-purpose method of emphasizing abnormal lesions in chest radiographs, named EGGPALE (Extrapolative, Generative and General-Purpose Abnormal Lesion Emphasizer), is presented. The proposed EGGPALE method is composed of a flow-based generative model and L-infinity-distance-based extrapolation in a latent space. The flow-based model is trained using only normal chest radiographs, and an invertible mapping function from the image space to the latent space is determined.

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Objectives: The aim of the present study was to determine the efficacy and safety of our newly developed ICG-assisted nerve-sparing (NS) robot-assisted radical prostatectomy (RARP) through subjective and objective data.

Methods: This study included 43 NS RARP patients, divided into ICG (23 patients) and non-ICG (20 patients) groups. Immunohistochemical staining with nNOS antibodies was conducted on specimens of resected prostate from the base, middle, and apex to count nNOS-positive cells.

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Objectives: To investigate the incidence, laryngeal distribution, management, and postoperative clinical course of patients with newly diagnosed adult-onset recurrent respiratory papillomatosis (RRP) in Japan.

Methods: An initial brief questionnaire was sent to 782 institutions, including all 101 core and 627 collaborating institutions providing board certification programs accredited by the Japanese Society of Otorhinolaryngology-Head and Neck Surgery. A detailed questionnaire regarding patient age, sex, Derkay's score, surgery, and postoperative clinical course was sent to 196 institutions caring for patients with either newly or previously diagnosed RRP.

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Transthyretin (TTR) is an amyloidogenic protein associated with TTR amyloidosis (ATTR). Dissociation of TTR tetramers into TTR monomers causes TTR misfolding, resulting in amyloid fibril formation and triggering the onset of ATTR. Low-molecular-weight tetrameric TTR stabilizers are potential therapeutic agents to delay ATTR progression.

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Background: Women are predisposed to develop intolerance to cancer chemotherapy. Sarcopenia and chemotherapy are mutually related. Women are generally intolerable to chemotherapeutics such as 5-fluorouracil.

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Article Synopsis
  • - Glioblastoma (GBM) is a highly aggressive brain tumor with no effective treatments, and its tumor microenvironment is characterized as immunosuppressive, containing many glioma-associated macrophages/microglia (GAMs) that aid tumor growth and treatment resistance.
  • - The review discusses the classification and origin of GAMs, their activation mechanisms, interactions with tumor cells, and the historical and modern techniques for detecting GAMs, particularly immunohistochemistry.
  • - Recent advancements like single-cell RNA analysis provide new insights into GAMs, suggesting that therapies targeting these cells may be key to improving treatment options for GBM in the future.
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  • * It was discovered that 73.7% of participants had minimal pleural fluid, with right-sided fluid being more common, and little change in fluid thickness was observed after a year.
  • * Factors like age, sex, smoking, body mass index, and blood pressure were linked to the presence of pleural fluid, which is typically considered physiological and shows variability based on individual characteristics.
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Background/aim: The aim of this study was to evaluate the Mayo Adhesive Probability (MAP) score as a predictor of split renal function deterioration after robot-assisted partial nephrectomy (RAPN).

Patients And Methods: A total of 30 patients who underwent RAPN were identified retrospectively. The parameters evaluated included patient characteristics, tumor diameter, MAP score, warm ischemic time (WIT), and renal function.

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  • Fluctuations in estradiol levels throughout a woman's life, especially during menopause, can impact mental health by affecting the serotonin nervous system, leading to symptoms like depression and anxiety.
  • Research using a childhood mouse model showed that ovariectomy (removal of ovaries) at a young age decreased activity levels and altered social preferences.
  • The study found that the G protein-coupled receptor 30 plays a significant role in regulating serotonin levels, suggesting it influences behavior changes in response to low estradiol during childhood.
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  • * Analyzed 104 cases over 1.5 years, focusing on four major adverse events: hypotension, nausea/vomiting, photosensitivity, and liver dysfunction, while identifying risk factors.
  • * Results showed significant risk factors: spinal anesthesia linked to hypotension, advanced age and obesity to nausea, male gender and longer surgery to photosensitivity, and certain medications to liver dysfunction.
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Aim: Autism spectrum disorder (ASD) is associated with abnormal lipid metabolism, such as a high total ratio of omega-6 to omega-3 in polyunsaturated fatty acids (PUFAs). PUFAs are metabolized to epoxy fatty acids by cytochrome P450 (CYP); then, dihydroxy fatty acid is produced by soluble epoxide hydrolase. This study examined the association between PUFA metabolites in the cord blood and ASD symptoms and adaptive functioning in children.

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Objectives: Colonoscopy (CS) is an important screening method for the early detection and removal of precancerous lesions. The stool state during bowel preparation (BP) should be properly evaluated to perform CS with sufficient quality. This study aimed to develop a smartphone application (app) with an artificial intelligence (AI) model for stool state evaluation during BP and to investigate whether the use of the app could maintain an adequate quality of CS.

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  • - The study explores the challenge of detecting small lung nodules, which are often missed in existing datasets, and introduces a novel cost function to improve training for detection networks by utilizing artificially created nodule images.
  • - Utilizing a modified U-Net architecture, the research effectively combines both positive (with nodules) and negative (without nodules) image pairs for training, aiming to reduce false positives and enhance detection accuracy.
  • - Results show that this new approach significantly outperformed existing detection models, providing promising sensitivity rates when tested on real clinical chest X-ray data, marking a notable advancement in lung nodule detection techniques.
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Purpose: Laparoscopic distal gastrectomy (LDG) is a difficult procedure for early career surgeons. Artificial intelligence (AI)-based surgical step recognition is crucial for establishing context-aware computer-aided surgery systems. In this study, we aimed to develop an automatic recognition model for LDG using AI and evaluate its performance.

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Objectives: Desmopressin is widely used for nocturia in patients with nocturnal polyuria. We investigated the continuation rate and adherence for desmopressin in patients with overactive bladder and nocturia using a claims database and evaluated factors that improved adherence.

Methods: Patients with nocturia in a Japanese claims database who started desmopressin between September 2019 and July 2021 were evaluated.

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  • * A total of 43 patients (22 robotic and 21 laparoscopic) were analyzed, with findings showing no significant differences in operative time or overall complications, but robotic surgery had a lower rate of surgical site infections (SSIs) and better overall survival rates.
  • * The results suggest that robotic APR is more effective in reducing serious SSIs and improving survival outcomes compared to laparoscopic surgery for this specific group of cancer patients.
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Objectives This study aimed to examine the cut-off point of the Risk Assessment Scale (RAS) for predicting the 9-year risk of functional disability among older Japanese adults.Methods This prospective, 9-year follow-up study used data from the Sasaguri Genkimon Study in Fukuoka. Of the 2,629 older adults who did not have functional disabilities and participated in the baseline survey in 2011, 2,254 with complete data were included in the analysis.

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  • The study explores how social isolation during critical development stages affects behavior and neuronal activity, focusing on the expression of specific proteins in the prefrontal cortex (PFC) of mice.
  • Researchers compared socially isolated mice with those kept in groups, observing changes in neuronal firing patterns and social behavior.
  • Results indicated that isolated mice struggled with social memory, and decreased NARP expression was found in humans with autism compared to typically developing individuals, suggesting a link between social isolation and behavioral outcomes.
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Background: Paternal allele-specific DNA methylation of the imprinting control region (H19 ICR) controls genomic imprinting at the Igf2/H19 locus. We previously demonstrated that the mouse H19 ICR transgene acquires imprinted DNA methylation in preimplantation mouse embryos. This activity is also present in the endogenous H19 ICR and protects it from genome-wide reprogramming after fertilization.

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Notwithstanding the several investigations of the hydroxy fatty acids (hFAs)' physiological functions, studies focusing on their anti-obesity effects are limited. This study investigated the anti-obesity effects of 4 hFAs-10-hydroxy stearic acid (10-hSA), 12-hydroxy stearic acid (12-hSA), 9,12-hydroxy stearic acid (9,12-dhSA), and 12-hydroxy oleic acid (12-hOA)-on the 3T3-L1 cells. All hFAs suppressed lipid accumulation, with 10-hSA and 12-hOA exhibiting the strongest suppression, followed by 12-hSA and 9,12-hSA.

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  • - The study investigates the impact of chemotherapy compliance on long-term survival in patients with locally advanced rectal cancer who received preoperative chemoradiotherapy and adjuvant chemotherapy after surgery.
  • - Out of 335 patients, those who discontinued adjuvant chemotherapy had significantly shorter recurrence-free survival compared to those who completed it, making discontinuation an independent risk factor for worse outcomes.
  • - Additionally, patients with a low prognostic nutritional index (PNI) tended to be older, had lower body mass indices, and were more likely to discontinue chemotherapy, indicating that low PNI is associated with a shorter duration of chemotherapy.
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Photoreceptor degeneration decreases light sensitivity and leads to vision loss and various retinal diseases. Neurotrophin-3, originating from Müller glial cells in the retina, plays a key role in protecting photoreceptors from damage induced by light or hypoxia. This neuroprotective approach is important because there are no established methods to regenerate lost photoreceptors.

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Chronic obstructive pulmonary disease (COPD) is a progressive disease that is characterized by chronic airway inflammation. A Japanese herbal medicine, hochuekkito (TJ-41), is prominently used for chronic inflammatory diseases in Japan. This study aimed to analyze the anti-inflammatory effect of TJ-41 in vivo and its underlying mechanisms.

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