Vitamin K-1 intake tied to heart structure, function in teens

Vitamin K-1 intake tied to heart structure, function in teens
(HealthDay)—For adolescents, phylloquinone (vitamin K-1) intake is associated with left ventricular (LV) structure and function, according to a study published in the October issue of The Journal of Nutrition.

Mary K. Douthit, from Augusta University in Georgia, and colleagues assessed diet with three to seven 24-hour recalls and physical activity by accelerometry in 766 adolescents (aged 14 to 18 years). The authors examined the correlations between phylloquinone intake and LV and function, assessed by echocardiography.

The researchers found that across tertiles of phylloquinone intake, there was a progressive decrease in the prevalence of LV hypertrophy. The adjusted odds ratio for LV hypertrophy was 3.3 for those in the lowest phylloquinone intake tertile compared with the highest intake tertile after adjustment for multiple confounding variables. After adjustment for the same confounding variables, there were significant linear downward trends for LV mass index and relative wall thickness across phylloquinone intake tertiles (6.5 and 9.2 percent difference, respectively, for tertile 1 versus 3). For midwall fractional shortening and ejection fraction, there were significant linear upward trends across phylloquinone intake tertiles (3.4 and 2.6 percent difference, respectively, for tertile 1 versus 3).

"Our data suggest that subclinical cardiac structure and variables are most favorable at higher phylloquinone intakes," the authors write.


Explore further

High vitamin K1 intake linked to reduced cataract risk

More information: Abstract
Full Text

Copyright © 2017 HealthDay. All rights reserved.

Citation: Vitamin K-1 intake tied to heart structure, function in teens (2017, October 9) retrieved 15 February 2019 from https://medicalxpress.com/news/2017-10-vitamin-k-intake-tied-heart.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more