Seasonal variation in consumption and plasma concentrations of fatty acids in Japanese female dietitians
| Autor: | Kiyonori Kuriki, Nakako Fujiwara, Yuko Tokudome, Nahomi Imaeda, Masato Ikeda, Juichi Sato, Chiho Goto, Shinkan Tokudome, Shogo Kikuchi, Shinzo Maki, Teruo Nagaya |
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| Rok vydání: | 2003 |
| Předmět: |
Adult
Chromatography Gas Epidemiology Dietetics Linoleic acid Myristic acid chemistry.chemical_compound Japan Blood plasma Medicine Humans Food science chemistry.chemical_classification Analysis of Variance business.industry Fatty Acids food and beverages Middle Aged Eicosapentaenoic acid Dietary Fats Oleic acid chemistry Docosahexaenoic acid Workforce lipids (amino acids peptides and proteins) Female Stearic acid Seasons business Epidemiologic Methods Polyunsaturated fatty acid |
| Zdroj: | European journal of epidemiology. 18(10) |
| ISSN: | 0393-2990 |
| Popis: | 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, γ-linolenic acid, α-linolenic acid, PUFAs/saturated FAs, and n-6 PUFAs/n-3 PUFAs, and for most plasma concentrations, except for stearic acid, γ-linolenic acid, n-3 PUFAs, α-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. |
| Databáze: | OpenAIRE |
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