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Seasonal variation in consumption and plasma concentrations of fatty acids in Japanese female dietitians.
Eur J Epidemiol. 2003; 18(10):945-53.EJ

Abstract

OBJECTIVE

To study seasonal variation in intake and plasma concentrations of fatty acids (FAs) in Japanese female dietitians.

SUBJECTS AND METHODS

We assessed consumption of FAs based on four season 7 consecutive day weighed diet records from 71 Japanese female dietitians in 1996-1997. Using overnight fasting venous blood, plasma concentrations of FAs were analyzed by gas chromatography. Seasonal variation in consumption and plasma concentrations was examined by ANOVA for repeated values, followed by Tukey's multiple t-test. We calculated Spearman's partial rank correlation coefficients (CCs) between intake and plasma concentrations of FAs. Furthermore, we computed inter-seasonal Spearman's partial rank CCs for consumption and plasma concentrations of FAs.

RESULTS

Statistically significant seasonal differences were observed in consumption for most FAs, except for myristic acid, monounsaturated FAs, oleic acid, n-6 polyunsaturated FAs (PUFAs), linoleic acid, gamma-linolenic acid, alpha-linolenic acid, PUFAs/saturated FAs, and n-6 PUFAs/n-3 PUFAs, and for most plasma concentrations, except for stearic acid, gamma-linolenic acid, n-3 PUFAs, alpha-linolenic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and n-3 highly unsaturated FAs (HUFAs). However, statistically significant Spearman's partial rank CCs between intake and plasma concentrations were observed for EPA, DHA, n-3 HUFAs, n-6 PUFAs/n-3 PUFAs and n-6 PUFAs/n-3 HUFAs for almost all seasons.

CONCLUSIONS

Seasonal variation exists in consumption and plasma concentrations of FAs, so that this should be taken into account in epidemiological analyses, including case-control and cohort studies.

Authors+Show Affiliations

Nagoya-bunri University, Inazawa, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo 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

14598925

Citation

Tokudome, Yuko, et al. "Seasonal Variation in Consumption and Plasma Concentrations of Fatty Acids in Japanese Female Dietitians." European Journal of Epidemiology, vol. 18, no. 10, 2003, pp. 945-53.
Tokudome Y, Kuriki K, Imaeda N, et al. Seasonal variation in consumption and plasma concentrations of fatty acids in Japanese female dietitians. Eur J Epidemiol. 2003;18(10):945-53.
Tokudome, Y., Kuriki, K., Imaeda, N., Ikeda, M., Nagaya, T., Fujiwara, N., Sato, J., Goto, C., Kikuchi, S., Maki, S., & Tokudome, S. (2003). Seasonal variation in consumption and plasma concentrations of fatty acids in Japanese female dietitians. European Journal of Epidemiology, 18(10), 945-53.
Tokudome Y, et al. Seasonal Variation in Consumption and Plasma Concentrations of Fatty Acids in Japanese Female Dietitians. Eur J Epidemiol. 2003;18(10):945-53. PubMed PMID: 14598925.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Seasonal variation in consumption and plasma concentrations of fatty acids in Japanese female dietitians. AU - Tokudome,Yuko, AU - Kuriki,Kiyonori, AU - Imaeda,Nahomi, AU - Ikeda,Masato, AU - Nagaya,Teruo, AU - Fujiwara,Nakako, AU - Sato,Juichi, AU - Goto,Chiho, AU - Kikuchi,Shogo, AU - Maki,Shinzo, AU - Tokudome,Shinkan, PY - 2003/11/6/pubmed PY - 2004/2/27/medline PY - 2003/11/6/entrez SP - 945 EP - 53 JF - European journal of epidemiology JO - Eur. J. Epidemiol. VL - 18 IS - 10 N2 - OBJECTIVE: To study seasonal variation in intake and plasma concentrations of fatty acids (FAs) in Japanese female dietitians. SUBJECTS AND METHODS: We assessed consumption of FAs based on four season 7 consecutive day weighed diet records from 71 Japanese female dietitians in 1996-1997. Using overnight fasting venous blood, plasma concentrations of FAs were analyzed by gas chromatography. Seasonal variation in consumption and plasma concentrations was examined by ANOVA for repeated values, followed by Tukey's multiple t-test. We calculated Spearman's partial rank correlation coefficients (CCs) between intake and plasma concentrations of FAs. Furthermore, we computed inter-seasonal Spearman's partial rank CCs for consumption and plasma concentrations of FAs. RESULTS: Statistically significant seasonal differences were observed in consumption for most FAs, except for myristic acid, monounsaturated FAs, oleic acid, n-6 polyunsaturated FAs (PUFAs), linoleic acid, gamma-linolenic acid, alpha-linolenic acid, PUFAs/saturated FAs, and n-6 PUFAs/n-3 PUFAs, and for most plasma concentrations, except for stearic acid, gamma-linolenic acid, n-3 PUFAs, alpha-linolenic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and n-3 highly unsaturated FAs (HUFAs). However, statistically significant Spearman's partial rank CCs between intake and plasma concentrations were observed for EPA, DHA, n-3 HUFAs, n-6 PUFAs/n-3 PUFAs and n-6 PUFAs/n-3 HUFAs for almost all seasons. CONCLUSIONS: Seasonal variation exists in consumption and plasma concentrations of FAs, so that this should be taken into account in epidemiological analyses, including case-control and cohort studies. SN - 0393-2990 UR - https://www.unboundmedicine.com/medline/citation/14598925/Seasonal_variation_in_consumption_and_plasma_concentrations_of_fatty_acids_in_Japanese_female_dietitians_ L2 - http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=14598925.ui DB - PRIME DP - Unbound Medicine ER -