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Higher intake of vitamin B-6 and dairy products and lower intake of green and oolong tea are independently associated with lower serum homocysteine concentration in young Japanese women.
Nutr Res 2013; 33(8):653-60NR

Abstract

Little is known about the relation of modifiable dietary factors to circulating homocysteine concentrations, particularly in young adults and non-Western populations. We investigated the hypothesis that intakes of nutrients and foods are associated with serum homocysteine concentration in a group of young Japanese women. This cross-sectional study included 1050 female Japanese dietetic students aged 18 to 22 years. Dietary intake was assessed using a validated, self-administered, comprehensive diet history questionnaire. Fasting blood samples were collected, and serum homocysteine concentrations were measured. Adjustment was made for survey year, region, municipality level, current smoking, current alcohol drinking, dietary supplement use, physical activity, body mass index, energy intake, and intakes of other nutrients or foods. After adjustment for nondietary confounding factors, intakes of all B vitamins (folate, vitamin B-6, vitamin B-12, and riboflavin) were inversely associated with homocysteine concentration. However, only vitamin B-6 remained significant after further adjustment for other B vitamins. Marine-origin n-3 polyunsaturated fatty acid intake showed an inverse association, but this was not independent of intakes of B vitamins. For foods, pulses, fish and shellfish, and vegetables were independently and inversely associated with homocysteine concentration, but these associations disappeared after adjustment for intakes of other foods. Conversely, an inverse association for dairy products and a positive association for green and oolong tea remained even after adjustment for other foods. To conclude, in a group of young Japanese women, higher intake of vitamin B-6 and dairy products and lower intake of green and oolong tea were independently associated with lower serum homocysteine concentration.

Authors+Show Affiliations

Northern Ireland Centre for Food and Health, University of Ulster, Coleraine, United Kingdom. k.murakami@ulster.ac.ukNo 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

23890355

Citation

Murakami, Kentaro, et al. "Higher Intake of Vitamin B-6 and Dairy Products and Lower Intake of Green and Oolong Tea Are Independently Associated With Lower Serum Homocysteine Concentration in Young Japanese Women." Nutrition Research (New York, N.Y.), vol. 33, no. 8, 2013, pp. 653-60.
Murakami K, Sasaki S, Uenishi K, et al. Higher intake of vitamin B-6 and dairy products and lower intake of green and oolong tea are independently associated with lower serum homocysteine concentration in young Japanese women. Nutr Res. 2013;33(8):653-60.
Murakami, K., Sasaki, S., & Uenishi, K. (2013). Higher intake of vitamin B-6 and dairy products and lower intake of green and oolong tea are independently associated with lower serum homocysteine concentration in young Japanese women. Nutrition Research (New York, N.Y.), 33(8), pp. 653-60. doi:10.1016/j.nutres.2013.05.010.
Murakami K, et al. Higher Intake of Vitamin B-6 and Dairy Products and Lower Intake of Green and Oolong Tea Are Independently Associated With Lower Serum Homocysteine Concentration in Young Japanese Women. Nutr Res. 2013;33(8):653-60. PubMed PMID: 23890355.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Higher intake of vitamin B-6 and dairy products and lower intake of green and oolong tea are independently associated with lower serum homocysteine concentration in young Japanese women. AU - Murakami,Kentaro, AU - Sasaki,Satoshi, AU - Uenishi,Kazuhiro, AU - ,, Y1 - 2013/06/27/ PY - 2013/02/13/received PY - 2013/05/15/revised PY - 2013/05/23/accepted PY - 2013/7/30/entrez PY - 2013/7/31/pubmed PY - 2014/2/8/medline KW - B vitamins KW - DHQ KW - Fatty acids KW - Homocysteine KW - Japanese KW - Young women KW - diet history questionnaire SP - 653 EP - 60 JF - Nutrition research (New York, N.Y.) JO - Nutr Res VL - 33 IS - 8 N2 - Little is known about the relation of modifiable dietary factors to circulating homocysteine concentrations, particularly in young adults and non-Western populations. We investigated the hypothesis that intakes of nutrients and foods are associated with serum homocysteine concentration in a group of young Japanese women. This cross-sectional study included 1050 female Japanese dietetic students aged 18 to 22 years. Dietary intake was assessed using a validated, self-administered, comprehensive diet history questionnaire. Fasting blood samples were collected, and serum homocysteine concentrations were measured. Adjustment was made for survey year, region, municipality level, current smoking, current alcohol drinking, dietary supplement use, physical activity, body mass index, energy intake, and intakes of other nutrients or foods. After adjustment for nondietary confounding factors, intakes of all B vitamins (folate, vitamin B-6, vitamin B-12, and riboflavin) were inversely associated with homocysteine concentration. However, only vitamin B-6 remained significant after further adjustment for other B vitamins. Marine-origin n-3 polyunsaturated fatty acid intake showed an inverse association, but this was not independent of intakes of B vitamins. For foods, pulses, fish and shellfish, and vegetables were independently and inversely associated with homocysteine concentration, but these associations disappeared after adjustment for intakes of other foods. Conversely, an inverse association for dairy products and a positive association for green and oolong tea remained even after adjustment for other foods. To conclude, in a group of young Japanese women, higher intake of vitamin B-6 and dairy products and lower intake of green and oolong tea were independently associated with lower serum homocysteine concentration. SN - 1879-0739 UR - https://www.unboundmedicine.com/medline/citation/23890355/Higher_intake_of_vitamin_B_6_and_dairy_products_and_lower_intake_of_green_and_oolong_tea_are_independently_associated_with_lower_serum_homocysteine_concentration_in_young_Japanese_women_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0271-5317(13)00120-6 DB - PRIME DP - Unbound Medicine ER -