Seasonal variation of serum 25(OH) vitamin D levels in maternal and umbilical cord blood in Japanese women

• Material Type: 博士論文
• Title: Seasonal variation of serum 25(OH) vitamin D levels in maternal and umbilical cord blood in Japanese women
• Author/Editor: Sogawa, Eishi; Kaji, Takashi; Nakayama, Soichiro; Yoshida, Atsuko; Yonetani, Naoto; Maeda, Kazuhisa; Yasui, Toshiyuki; Irahara, Minoru
• Author Heading: Sogawa, Eishi; Kaji, Takashi; Nakayama, Soichiro; Yoshida, Atsuko; Yonetani, Naoto; Maeda, Kazuhisa; Yasui, Toshiyuki; Irahara, Minoru
• Publication, Distribution, etc.: Tokushima University Faculty of Medicine
• Publication Date: 2019-02
• Publication Date (W3CDTF): 2019-02
• Alternative Title: 日本人における母体血及び臍帯血血中25(OH)D濃度の季節変動; Vitamin D during pregnancy in Japanese
• Periodical title: The Journal of Medical Investigation
• No. or year of volume/issue: 66 1-2
• Volume: 66
• Issue: 1-2
• Pages: 128-133
• ISSN (Periodical Title): ISSN : 1349-6867; ISSN : 1343-1420
• Degree grantor/type: 徳島大学
• Date Granted: 2019-03-22
• Dissertation Number: 甲第3258号
• Degree Type: 博士（医学）
• Text Language Code: eng
• Subject Heading: 25-hydroxyvitamin D; pregnancy; cord blood; season; vitamin D
• Target Audience: 一般
• Note (General): We aimed to demonstrate that the serum 25-hydroxyvitamin D (25(OH)D) level in maternal and umbilical cord blood has a seasonal variation in Japanese women. The study cohort comprised 256 healthy Japanese women with a singleton pregnancy who delivered after 36 gestational weeks between 2012 and 2015. The season at delivery was categorized for 3 months and recorded as “spring”, “summer”, “autumn” and “winter”. Subjects were divided into four groups according to season. A sample of peripheral venous blood at 35-36 gestational weeks and blood from the umbilical vein at delivery were taken. The mean serum 25(OH)D concentration (ng/mL) in maternal blood for each season (spring, summer, autumn and winter) was 18.0 (±6.7), 17.1 (±5.1), 21.6 (±8.0) and 16.0 (±5.1), whereas that for umbilical cord blood was 8.8 (±3.6), 8.6 (±2.6), 10.7 (±3.5) and 8.6 (±2.1), respectively. The mean serum 25(OH)D concentration of maternal and umbilical cord blood in autumn was higher than that for the other three seasons. In pregnant Japanese women, the mean serum 25(OH)D concentration in maternal and umbilical cord blood was affected by the season of delivery, with both being highest in autumn. Regardless of the season, the maternal serum concentration of 25(OH)D was low in Japan.
• Format (IMT): application/pdf
• Access Restrictions: インターネット公開
• Related Material (DOI): 10.2152/jmi.66.128
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 徳島大学 : 徳島大学機関リポジトリ

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http://repo.lib.tokushima-u.ac.jp/files/public/11/113353/20190606091338341830/k3258_abstract_review.pdf fulltext

http://repo.lib.tokushima-u.ac.jp/files/public/11/113353/20190726135921925113/k3258_fulltext.pdf fulltext