Publications by authors named "Matsui D"

Background: Previous studies have reported an association between oral hypofunction and normal gait speed as a marker for physical function; however, the association between maximum gait speed as a more sensitive marker for physical function and poor oral function has not been investigated.

Objectives: To elucidate associations of oral hypofunction, comprising seven elements, with both normal and maximum gait speeds in an older population.

Methods: Participants were recruited in 2018 from a hospital-based health checkup in Kyoto Prefecture.

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  • The study investigates factors influencing medication continuation rates for asenapine sublingual tablets in schizophrenia, highlighting the impact of specific antipsychotics and patient characteristics like age and illness duration.
  • Using data from 3,236 cases in Japan, the research identified that higher chlorpromazine doses and longer illness duration (over 25 years) significantly predict better continuation rates for asenapine.
  • The findings suggest that predictors for antipsychotic medication continuation vary by drug, emphasizing the need for a tailored approach in treating schizophrenia based on individual patient factors.
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β-Aspartyl compounds, such as β-aspartyl hydroxamate (serine racemase inhibitor), β-aspartyl-l-lysine (moisture retention), and β-aspartyl-l-tryptophan (immunomodulator) are physiologically active compounds. There is limited literature on the development of effective methods of production of β-aspartyl compounds. In this study, we describe the biochemical characterization of asparagine synthetase (AS) from Streptococcus thermophilus NBRC 13957 (StAS) and the enzymatic synthesis of β-aspartyl compounds using StAS.

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Successful implementation of enzymes in practical application hinges on the development of efficient mass production techniques. However, in a heterologous expression system, the protein is often unable to fold correctly and, thus, forms inclusion bodies, resulting in the loss of its original activity. In this study, we present a new and more accurate model for predicting amino acids associated with an increased L-amino acid oxidase (LAO) solubility.

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Aim: The combination of locomotive syndrome (LS) and poor sleep quality (PQ) has not yet been shown to result in falls or to affect bone conditions in old age and middle age. [Correction added on 1 December 2023, after first online publication: The preceding sentence has been updated for clarity.] METHODS: This cross-sectional study enrolled 2233 community-dwelling middle-aged to older Japanese women.

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Aims: A meta-analysis of short-term studies revealed no significant differences between the doses of asenapine, 10 and 20 mg/day, in the acute treatment of schizophrenia. However, it should be noted that many patients from clinical practice were excluded, and the dose-response to asenapine in a real-world setting is still unclear. Additionally, the dose-response in the maintenance phase is not clear.

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Objective: Evidence for an association between locomotive syndrome (LS) and depression is lacking in middle-aged women. This study aimed to investigate the relationship between LS severity and depressive symptoms in community-dwelling middle-aged women.

Methods: This cross-sectional study included 1520 middle-aged women (mean age 52 ± 6 years).

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  • The GWAS focused on identifying genetic loci linked to folate metabolites such as homocysteine, folic acid, and vitamin B levels in a Japanese cohort.
  • The study analyzed data from 2,263 participants in the J-MICC Study and replicated findings in 573 participants from the Yakumo Study, highlighting significant loci on chromosomes 1, 11, and 16.
  • Results indicated notable gene-environment interactions, particularly involving the MTHFR gene and factors like alcohol consumption and physical activity, suggesting implications for personalized cardiovascular disease prevention.
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Aims: Prazosin is an antihypertensive medication which can be used to help with post-traumatic stress disorder (PTSD) symptoms. Little data is currently available on its safety in pregnancy. The aim of this study was to assess the fetal and pregnancy safety associated with prazosin exposures in early pregnancy.

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The gene encoding γ-glutamyltranspeptidase II (PaGGTII) from Pseudomonas aeruginosa PAO1 was cloned in Escherichia coli. Recombinant PaGGTII showed a weak activity (0.0332 U/mg), and it can be easily inactivated.

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Background: Previous cohort studies have yielded contradictory findings regarding the associations of dietary carbohydrate and fat intakes with risks of mortality.

Objectives: We examined long-term associations of carbohydrate and fat intakes with mortality.

Methods: In this cohort study, 34,893 men and 46,440 women aged 35-69 y (mean body mass index of 23.

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Background And Aim: We investigated whether oral-dental conditions may be associated with the prevalence of irritable bowel syndrome (IBS) in a cross-sectional study in Japan.

Methods: Information on lifestyle and abdominal symptoms was collected, and oral-dental examinations were performed from 2013 to 2017. To investigate the association between oral-dental conditions and IBS, this study used logistic regression analyses adjusted for relevant confounding factors, such as age, sex, BMI, stress, and eating between meals.

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  • - The study examines how gene-lifestyle interactions influence body mass index (BMI) and emphasizes the need for personalized nutrition in obesity treatment strategies, as current evidence is limited.
  • - Using data from over 12,000 participants, researchers found a significant correlation (r = 0.13) between a multi-locus genetic risk score (GRS) and BMI, highlighting the impact of genetic factors on obesity.
  • - Results showed interactions between GRS and certain dietary intakes, such as saturated fatty acids and n-3 polyunsaturated fatty acids, suggesting that personalized dietary recommendations based on genetic predisposition could improve obesity prevention and treatment.
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Aims: The association between dietary patterns and serum low density lipoprotein (LDL) cholesterol would be changing in recent dietary habits in Japan. We investigated the relationship between dietary patterns and serum LDL cholesterol in a large general population.

Methods: From the baseline survey of Japan Multi-Institutional Collaborative Cohort Study between 2005 and 2013, 27,237 participants (13,994 were women) aged 35-69 years were cross-sectionally analyzed.

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The high stereo- and substrate specificities of enzymes have been utilized for microdetermination of amino acids. Here, I review the discovery of l-Arg oxidase from Pseudomonas sp. TPU 7192, l-Lys oxidase/decarboxylase from Burkholderia sp.

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The Pseudomonas aeruginosa strain, PAO1, has three putative γ-glutamyltranspeptidase (GGT) genes: ggtI, ggtII, and ggtIII. In this study, the expression of each of these genes in P. aeruginosa PAO1 was analyzed, and the properties of the corresponding GGT proteins were investigated.

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There are many reports on the risk of falls in older adults but none regarding the risk among middle-aged people. We aimed to determine fall risk factors among middle-aged women. The participants comprised 1421 women aged 40 to 64 years; anthropometric and other measurements were obtained, and lifestyle factors were examined using a self-administered questionnaire.

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Objective: Findings on the increased mortality risk in individuals with insomnia are inconsistent across studies. Rather than improving insomnia by sleep control, hypnotic use may be one factor in the increased risk of death; however, the effects of hypnotics on mortality remains unclear. This study aimed to examine the association between all-cause mortality and hypnotic use in a large sample, while adjusting for the effects of comorbidities.

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Introduction: Atezolizumab, an immune checkpoint inhibitor, plus bevacizumab, a monoclonal antibody that binds to vascular endothelial growth factor (VEGF), is an approved first-line systemic treatment for unresectable hepatocellular carcinoma (HCC). Immune checkpoint inhibitors are more effective in patients with HCC when administered with anti-VEGF drugs; however, these drugs affect host immunity. Lenvatinib is an anti-VEGF agent used to treat HCC; therefore, this study evaluated the effect of treatment of HCC with lenvatinib on host immunity in patients with chronic liver disease (CLD).

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  • Genetic factors influence how individuals experience pain, prompting researchers to conduct a genome-wide association study (GWAS) focused on patients with cancer pain and the general population.
  • The study combined two cohorts: an exploratory group assessed using pain intensity ratings and opioid dosages, and a confirmatory group that evaluated habitual use of nonsteroidal anti-inflammatory drugs.
  • A novel single-nucleotide polymorphism (SNP) associated with pain was identified on chromosome 7, linked to the gene for pleiotrophin, which showed significant correlations with analgesic use, although its minor allele affected pain in the opposite way than expected.
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Background: Mid-regional pro-adrenomedullin (MR-proADM) is a novel biomarker for cognitive decline based on its association with cerebral small vessel disease (SVD). Cerebral microbleeds (MBs) are characteristic of SVD; however, a direct association between MR-proADM and MBs has not been explored.

Objective: We aimed to examine whether circulating levels of MR-proADM are associated with the identification of MBs by brain magnetic resonance imaging (MRI) and whether this association could be linked with cognitive impairment.

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Background: Bromine compounds are used in several drugs, including over-the-counter drugs. They sometimes cause intoxication known as bromism. Although the acute neurological symptoms and sequelae of bromism vary, few reports have mentioned acute encephalopathy.

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Aldoxime dehydratase (Oxd) is a heme enzyme that catalyzes aldoxime dehydration to the corresponding nitriles. Unlike many other heme enzymes, Oxd has a unique feature that the substrate binds directly to the heme. Therefore, it is thought that structural differences around the bound heme directly relate to differences in substrate selection.

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Background/objectives: Low-carbohydrate diets (LCD) are useful for weight reduction, and 50-55% carbohydrate consumption is associated with minimal risk. Genetic differences were related to nutritional consumption, food preferences, and dietary patterns, but whether particular genetic differences in individuals influence LCD adherence is unknown.

Subjects/methods: We conducted a GWAS on adherence to LCD utilizing 14,076 participants from the Japan Multi-Institutional Collaborative Cohort study.

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Objective: The aim of the present study was to investigate the associations between breastfeeding and the prevalence of metabolic syndrome in community-dwelling parous women and to clarify whether the associations depend on age.

Methods: The present cross-sectional study included 11,118 women, aged 35-69 years. Participants' longest breastfeeding duration for one child and their number of breastfed children were assessed using a self-administered questionnaire, and their total breastfeeding duration was approximated as a product of the number of breastfed children and the longest breastfeeding duration.

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