Journal of Shanghai Jiao Tong University (Medical Science) >

2022 , Vol. 42 >Issue 12: 1739 - 1744

DOI: https://doi.org/10.3969/j.issn.1674-8115.2022.12.012

Public health

Association of n-3 polyunsaturated fatty acids and mercury during pregnancy with gestational diabetes mellitus

  • Kefeng YANG ,
  • Jie JIA ,
  • Tianze DING ,
  • Shuo ZHANG ,
  • Xinyi LI ,
  • Jie ZHU ,
  • Yuhong LIU ,
  • Lingpeng LU ,
  • Hui WU
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  • 1.Department of Clinical Nutrition, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
    2.Department of Clinical Nutrition, College of Health Science and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
    3.Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai 200092, China
    4.School of Family and Consumer Sciences, Texas State University, San Marcos 78666, USA
    5.Department of Obstetrics and Gynecology, Shanghai Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
    6.Department of Clinical Laboratory, Shanghai Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
    7.Department of Nutrition, Shanghai Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
WU Hui, E-mail: 877761520@qq.com.
LU lingpeng, E-mail: llpeng2012@163.com

Received date: 2022-06-24

  Accepted date: 2022-09-04

  Online published: 2022-10-12

Supported by

National Natural Science Foundation of China(81573140);Undergraduate Innovation Program of Shanghai Jiao Tong University School of Medicine(1521Z401);Research Project of Shanghai University of Traditional Chinese Medicine(2019LK042)

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Abstract

Objective ·To investigate the dietary intake of n-3 polyunsaturated fatty acids (n-3 PUFA),including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and serum mercury levels in the pregnant women in Shanghai, and analyze whether n-3 polyunsaturated fatty acids intake and mercury exposure are risk factors of GDM. Methods ·From January 2018 to January 2021, dietary survey, clinical data collection, and serum samples collection and testing were conducted among the pregnant women who sought prenatal care in Shanghai Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine. Dietary and dietary supplements were investigated by semi-quantitative food frequency questionnaire at 24±1 gestational week. The n-3 PUFA intake (dietary DHA and EPA, and DHA supplements) and serum mercury in control group were divided into tertiles. After adjusting the other known risk factors for GDM (BMI, age, family history of diabetes, and energy), the odds ratios and 95% confidence intervals of the risk of GDM were calculated by Logistic regression. Partial correlation analysis was used to analyze the correlation between dietary DHA or EPA and serum mercury. Results ·Among 519 pregnant women, there were 361 normal pregnant women and 158 pregnant women with GDM. The average intakes of DHA and EPA in the normal pregnant women were 29.78 mg/d and 23.90 mg/d, respectively and the average intakes of DHA and EPA in the pregnant women with GDM were 37.47 mg/d and 28.94 mg/d, respectively. All of them were far below the appropriate intake recommended by the Chinese Nutrition Society. The mean value of serum mercury was 0.31 μg/L in the normal pregnant women and 0.29 μg/L in the pregnant women with GDM. After adjusting the other risk factors, multivariate Logistic regression analysis showed that dietary DHA intake (P trend=0.135), dietary + supplement DHA (P trend=0.371), EPA intake (P trend=0.106), dietary intake of n-3 PUFA (P trend=0.382) and serum mercury (P trend=0.514) were not significantly correlated with GDM. The partial correlation analysis found that dietary DHA and dietary EPA were not significantly correlated with serum mercury in the pregnant women (P=0.126, P=0.543). Conclusion ·Low level of n-3 PUFA intake and mercury exposure are not associated with GDM.

Key words： n-3 polyunsaturated fatty acid (n-3 PUFA); eicosapentaenoic acid (EPA); docosahexaenoic acid (DHA); serum mercury; gestational diabetes mellitus (GDM)

Cite this article

Kefeng YANG , Jie JIA , Tianze DING , Shuo ZHANG , Xinyi LI , Jie ZHU , Yuhong LIU , Lingpeng LU , Hui WU . Association of n-3 polyunsaturated fatty acids and mercury during pregnancy with gestational diabetes mellitus[J]. Journal of Shanghai Jiao Tong University (Medical Science), 2022 , 42(12) : 1739 -1744 . DOI: 10.3969/j.issn.1674-8115.2022.12.012

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