著者

Masayuki Shima Narumi Tokuda Hideki Hasunuma Yoshiko Kobayashi Hiroyuki Tanaka Hideaki Sawai Hiroaki Shibahara Yasuhiro Takeshima Munetaka Hirose the Japan Environment and Children’s Study (JECS) Group

出版者

The Japanese Society for Hygiene

雑誌

Environmental Health and Preventive Medicine (ISSN:1342078X)

巻号頁・発行日

vol.27, pp.37, 2022 (Released:2022-09-28)

参考文献数

47

被引用文献数

3

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Background: Epidural analgesia relives pain during labor. However, the long-term effects on neurodevelopment in children remain unclear. We explored associations between exposure to epidural analgesia during labor and childhood neurodevelopment during the first 3 years of life, in the Japan Environment and Children’s Study (JECS), a large-scale birth cohort study.Methods: Pregnant women were recruited between January 2011 and March 2014, and 100,304 live births of singleton children born at full-term by vaginal delivery, and without congenital diseases were analyzed. Data on mothers and children were collected using a self-administered questionnaires and medical record transcripts. The children’s neurodevelopment was repeatedly assessed for five domains (communication, gross motor, fine motor, problem solving, and personal-social), using the Ages and Stages Questionnaires, Third Edition, at six time points from age 6 to 36 months. After adjusting for potential confounders, the associations between exposure to epidural analgesia during labor and children’s neurodevelopment at each time point were assessed.Results: Of the 42,172 children with valid data at all six time points, 938 (2.4%) were born to mothers who received epidural analgesia during labor. Maternal exposure to epidural analgesia was associated with neurodevelopmental delays during the first 3 years after birth. Delay risks in gross and fine motor domains were the greatest at 18 months (adjusted odds ratio (aOR) [95% confidence interval (CI)]: 1.40 [1.06, 1.84] and 1.54 [1.17, 2.03], respectively), subsequently decreasing. Delay risks in communication and problem-solving domains were significantly high at 6 and 24 months, and remained significant at 36 months (aOR [95% CI]: 1.40 [1.04, 1.90] and 1.28 [1.01, 1.61], respectively). Exposure to epidural analgesia was also associated with the incidence of problem solving and personal-social delays from 18 to 24 months old. Neurodevelopmental delay risks, except for communication, were dominant in children born to mothers aged ≥30 years at delivery.Conclusions: This study showed that maternal exposure to epidural analgesia during labor was associated with neurodevelopmental delays in children during the first 3 years after birth.

著者

Tomoko Ishida Mohammad Shahriar Khan Honami Kodama Yukiko Uejima Yumi Kawase Takahiro Matsumoto Yuki Yamamura Nobuyuki Sera Takao Gotou Masaaki Hirakawa Yoshitaka Yano Masayuki Shima Nobuyuki Yamagishi Keiji Wakabayashi Tetsushi Watanabe

出版者

The Pharmaceutical Society of Japan

雑誌

Biological and Pharmaceutical Bulletin (ISSN:09186158)

巻号頁・発行日

vol.43, no.9, pp.1361-1366, 2020-09-01 (Released:2020-09-01)

参考文献数

27

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We examined the association of biological components in airborne particles, i.e., proteins and endotoxins, in outdoor air with asthma exacerbation in the Fukuoka metropolitan area, Fukuoka, Japan. Data on emergency department (ED) visits for asthma in children (age, 0–14 years) and adults (age, 15–64 years) were collected at a medical center from December 2014 to November 2015. One hundred eighty-one children and 143 adults visited the ED for asthma, and the weekly number of ED visits in children increased in autumn, i.e., September (second week) to November (first week). Fine (aerodynamic diameter ≤2.5 µm) and coarse (≥2.5 µm) particles were collected for 3 or 4 weeks per month, and protein and endotoxin concentrations were analyzed. Protein was largely prevalent in fine particles (0.34–7.33 µg/m3), and concentrations were high in April, May, June, and October. In contrast, endotoxin was mainly included in coarse particles (0.0010–0.0246 EU/m3), and concentrations were high in September (third week), October (first, second, and fourth weeks), February (fourth week), and July (first week). The results of a Poisson regression analysis indicated that endotoxin (in fine and coarse particles alike) was a significant factor for ED visits related to asthma in children, even after adjusting for meteorological factors, i.e., temperature, relative humidity, and wind speed. However, there was no association between environmental factors and ED visits for asthma in adults. These results suggest that endotoxin in outdoor air is significantly associated with an increased risk of asthma exacerbation in children.

著者

Miwa Yamaguchi Kokichi Arisawa Hirokazu Uemura Sakurako Katsuura-Kamano Hidenobu Takami Fusakazu Sawachika Mariko Nakamoto Tomoya Juta Eisaku Toda Kei Mori Manabu Hasegawa Masaharu Tanto Masayuki Shima Yoshio Sumiyoshi Kenji Morinaga Kazunori Kodama Takaichiro Suzuki Masaki Nagai Hiroshi Satoh

出版者

(公社)日本産業衛生学会

雑誌

Journal of Occupational Health (ISSN:13419145)

巻号頁・発行日

pp.12-0264-OA, (Released:2013-04-09)

被引用文献数

11 47

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Objective: Perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) have been shown to accumulate in the human body. The purpose of the present study was to examine the factors associated with the blood levels of PFOS and PFOA. Methods: A cross-sectional study was performed on 307 men and 301 women (aged 16-76 years) living in 15 prefectures in Japan. Blood levels of PFOS and PFOA were measured by liquid chromatography-mass spectrometry. Hepatic enzymes (γ-GTP, GOT, and GPT) and ω-3 polyunsaturated fatty acids (DHA and EPA) levels in serum were also measured. Associations between the levels of PFOS and PFOA in blood and the intake frequency of 41 kinds of dishes, foods and beverages and the serum levels of liver enzymes and ω-3 polyunsaturated fatty acids were examined using rank correlations. Results: Frequency of intake of boiled fish in broth, sliced raw fish and coastal fish showed significant positive correlations with PFOS concentrations in blood after adjustments for potential confounders. Serum levels of GOT, GPT, DHA and EPA showed significant positive correlations with PFOS and PFOA in blood. There was also a significant regional difference in the blood levels of PFOS and PFOA, with medians being highest in the Tokai/Hokuriku/Kinki region. Conclusion: These findings suggest that the concentrations of PFOS in blood were mainly associated with fish consumption and that the levels of PFOS and PFOA were mainly associated with the serum levels of liver enzymes in Japanese populations. Further investigations are required to clarify the reason for the regional differences in blood levels of PFOS and PFOA in Japan.