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Fatty acid intake and asthma symptoms in Japanese children: the Ryukyus Child Health Study.
Clin Exp Allergy. 2008 Oct; 38(10):1644-50.CE

Abstract

BACKGROUND

It has been hypothesized that increased consumption of n-6 polyunsaturated fatty acids and decreased consumption of n-3 polyunsaturated fatty acids have contributed to the recent increased prevalence of asthma.

OBJECTIVES

The present cross-sectional study examined the association of intake of specific types of fatty acids with the prevalence of asthma symptoms using data from the Ryukyus Child Health Study.

METHODS

Study subjects were 25,033 schoolchildren aged 6-15 years in Okinawa, Japan. Symptoms of wheeze and asthma were defined according to diagnostic criteria from the International Study of Asthma and Allergies in Childhood. Information on dietary factors was collected using a self-administered brief diet history questionnaire for children. Adjustment was made for age, sex, number of siblings, smoking in the household, body mass index, paternal and maternal history of allergic diseases, and paternal and maternal educational level.

RESULTS

Intake of polyunsaturated fatty acids, n-3 and n-6 polyunsaturated fatty acids and linoleic acid (18:2 n-6) was independently associated with an increased prevalence of wheeze--the multivariate odds ratios for the highest quintile were 1.19 (95% confidence interval [CI], 1.05-1.35), 1.17 (95% CI, 1.03-1.34), 1.19 (95% CI, 1.04-1.35), and 1.20 (95% CI, 1.06-1.37), respectively. There was no measurable relationship of consumption of alpha-linolenic (18:3 n-3), eicosapentaenoic (20:5 n-3), docosahexaenoic (22:6 n-3) or arachidonic acid (20:4 n-6) or the ratio of n-3 to n-6 polyunsaturated fatty acids with the prevalence of wheeze. Consumption of total fat, saturated fatty acids, monounsaturated fatty acids and cholesterol were not evidently related to wheeze. No material dose-response association was found between the intake of any of the types of fatty acids considered and the prevalence of asthma.

CONCLUSIONS

The findings suggest that consumption of both n-3 and n-6 polyunsaturated fatty acids, especially linoleic acid, may be associated with an increased prevalence of wheeze.

Authors+Show Affiliations

Department of Public Health, Faculty of Medicine, Fukuoka University, Fukuoka, Japan. miyake-y@fukuoka-u.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18702656

Citation

Miyake, Y, et al. "Fatty Acid Intake and Asthma Symptoms in Japanese Children: the Ryukyus Child Health Study." Clinical and Experimental Allergy : Journal of the British Society for Allergy and Clinical Immunology, vol. 38, no. 10, 2008, pp. 1644-50.
Miyake Y, Sasaki S, Arakawa M, et al. Fatty acid intake and asthma symptoms in Japanese children: the Ryukyus Child Health Study. Clin Exp Allergy. 2008;38(10):1644-50.
Miyake, Y., Sasaki, S., Arakawa, M., Tanaka, K., Murakami, K., & Ohya, Y. (2008). Fatty acid intake and asthma symptoms in Japanese children: the Ryukyus Child Health Study. Clinical and Experimental Allergy : Journal of the British Society for Allergy and Clinical Immunology, 38(10), 1644-50. https://doi.org/10.1111/j.1365-2222.2008.03074.x
Miyake Y, et al. Fatty Acid Intake and Asthma Symptoms in Japanese Children: the Ryukyus Child Health Study. Clin Exp Allergy. 2008;38(10):1644-50. PubMed PMID: 18702656.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fatty acid intake and asthma symptoms in Japanese children: the Ryukyus Child Health Study. AU - Miyake,Y, AU - Sasaki,S, AU - Arakawa,M, AU - Tanaka,K, AU - Murakami,K, AU - Ohya,Y, Y1 - 2008/08/11/ PY - 2008/8/16/pubmed PY - 2009/1/23/medline PY - 2008/8/16/entrez SP - 1644 EP - 50 JF - Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology JO - Clin Exp Allergy VL - 38 IS - 10 N2 - BACKGROUND: It has been hypothesized that increased consumption of n-6 polyunsaturated fatty acids and decreased consumption of n-3 polyunsaturated fatty acids have contributed to the recent increased prevalence of asthma. OBJECTIVES: The present cross-sectional study examined the association of intake of specific types of fatty acids with the prevalence of asthma symptoms using data from the Ryukyus Child Health Study. METHODS: Study subjects were 25,033 schoolchildren aged 6-15 years in Okinawa, Japan. Symptoms of wheeze and asthma were defined according to diagnostic criteria from the International Study of Asthma and Allergies in Childhood. Information on dietary factors was collected using a self-administered brief diet history questionnaire for children. Adjustment was made for age, sex, number of siblings, smoking in the household, body mass index, paternal and maternal history of allergic diseases, and paternal and maternal educational level. RESULTS: Intake of polyunsaturated fatty acids, n-3 and n-6 polyunsaturated fatty acids and linoleic acid (18:2 n-6) was independently associated with an increased prevalence of wheeze--the multivariate odds ratios for the highest quintile were 1.19 (95% confidence interval [CI], 1.05-1.35), 1.17 (95% CI, 1.03-1.34), 1.19 (95% CI, 1.04-1.35), and 1.20 (95% CI, 1.06-1.37), respectively. There was no measurable relationship of consumption of alpha-linolenic (18:3 n-3), eicosapentaenoic (20:5 n-3), docosahexaenoic (22:6 n-3) or arachidonic acid (20:4 n-6) or the ratio of n-3 to n-6 polyunsaturated fatty acids with the prevalence of wheeze. Consumption of total fat, saturated fatty acids, monounsaturated fatty acids and cholesterol were not evidently related to wheeze. No material dose-response association was found between the intake of any of the types of fatty acids considered and the prevalence of asthma. CONCLUSIONS: The findings suggest that consumption of both n-3 and n-6 polyunsaturated fatty acids, especially linoleic acid, may be associated with an increased prevalence of wheeze. SN - 1365-2222 UR - https://www.unboundmedicine.com/medline/citation/18702656/Fatty_acid_intake_and_asthma_symptoms_in_Japanese_children:_the_Ryukyus_Child_Health_Study_ L2 - https://doi.org/10.1111/j.1365-2222.2008.03074.x DB - PRIME DP - Unbound Medicine ER -