Publications by authors named "Hidetoshi Takagi"

Background: This study aims to determine the extent to which preschool teachers and childcare workers are aware of the presence of developmental problems among children and to what extent they share information with parents about their concerns regarding a child's development or diagnosis of neurodevelopmental disorders (NDDs).

Methods: We wrote to all 924 preschools and childcare centres in Japan's Nagano and Yamanashi prefectures to request participants. We then sent survey forms to the preschools and childcare centres that agreed to cooperate for three grades comprising 3-, 4- and 5-year-olds in the school year 2020.

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The Ministry of Health and Welfare, Japan banned coadministration of carbapenems, such as panipenem/betamipron (PAPM), meropenem (MEPM), and valproic acid (VPA) because clinical reports have indicated that the coadministration caused seizures in epileptic patients due to lowered plasma levels of VPA. In this study, we have clarified the mechanism of the drug-drug interaction using PAPM, MEPM, and doripenem [S-4661; (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-[[(3S,5S)-5-[(sulfamoylamino)methyl]-3-pyrrolidinyl]thio]-1-azabicyclo[3.2.

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The metabolism of estradiol 17-sulfate (ES) by hepatic microsomes of female rats produced four new metabolites in addition to 2- and 4-hydroxyestradiol 17-sulfates (2- and 4-OH-ES), which were detected on an HPLC chromatogram. By comparison with synthetic specimens, three of these compounds were identified as 6alpha-, 6beta-, and 7beta-hydroxyestradiol 17-sulfates. To elucidate the structure of the remaining metabolite, a large-scale incubation of ES was carried out, followed by isolation using preparative HPLC to give the single material, which was assigned as 15beta-hydroxyestradiol 17-sulfate by instrumental analyses.

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Expression of cyclooxygenase (COX)-2 protein during rat hepatocarcinogenesis associated with fatty change, fibrosis, cirrhosis and oxidative DNA damage, caused by a choline-deficient, L-amino acid-defined (CDAA) diet were investigated in F344 male rats, along with the chemopreventive efficacy of the specific COX-2 inhibitor, nimesulide (NIM). Nimesulide, which was administered in the diet at concentrations of 200, 400, 600 and 800 p.p.

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