Impact of Pre-Pregnancy BMI on B Vitamin and Inflammatory Status in Early Pregnancy: An Observational Cohort Study
AbstractMaternal nutrition and inflammation have been suggested as mediators in the development of various adverse pregnancy outcomes associated with maternal obesity. We have investigated the relation between pre-pregnancy BMI, B vitamin status, and inflammatory markers in a group of healthy pregnant women. Cobalamin, folate, pyridoxal 5′-phosphate, and riboflavin; and the metabolic markers homocysteine, methylmalonic acid, and 3-hydroxykynurenine/xanthurenic acid ratio (HK/XA); and markers of cellular inflammation, neopterin and kynurenine/tryptophan ratio (KTR) were determined in pregnancy week 18 and related to pre-pregnancy body mass index (BMI), in 2797 women from the Norwegian Mother and Child Cohort Study (MoBa). Pre-pregnancy BMI was inversely related to folate, cobalamin, pyridoxal 5′-phosphate (PLP), and riboflavin (p < 0.001), and associated with increased neopterin and KTR levels (p < 0.001). Inflammation seemed to be an independent predictor of low vitamin B6 status, as verified by low PLP and high HK/XA ratio. A high pre-pregnancy BMI is a risk factor for low B vitamin status and increased cellular inflammation. As an optimal micronutrient status is vital for normal fetal development, the observed lower B vitamin levels may contribute to adverse pregnancy outcomes associated with maternal obesity and B vitamin status should be assessed in women with high BMI before they get pregnant. View Full-Text
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Bjørke-Monsen, A.-L.; Ulvik, A.; Nilsen, R.M.; Midttun, Ø.; Roth, C.; Magnus, P.; Stoltenberg, C.; Vollset, S.E.; Reichborn-Kjennerud, T.; Ueland, P.M. Impact of Pre-Pregnancy BMI on B Vitamin and Inflammatory Status in Early Pregnancy: An Observational Cohort Study. Nutrients 2016, 8, 776.
Bjørke-Monsen A-L, Ulvik A, Nilsen RM, Midttun Ø, Roth C, Magnus P, Stoltenberg C, Vollset SE, Reichborn-Kjennerud T, Ueland PM. Impact of Pre-Pregnancy BMI on B Vitamin and Inflammatory Status in Early Pregnancy: An Observational Cohort Study. Nutrients. 2016; 8(12):776.Chicago/Turabian Style
Bjørke-Monsen, Anne-Lise; Ulvik, Arve; Nilsen, Roy M.; Midttun, Øivind; Roth, Christine; Magnus, Per; Stoltenberg, Camilla; Vollset, Stein E.; Reichborn-Kjennerud, Ted; Ueland, Per M. 2016. "Impact of Pre-Pregnancy BMI on B Vitamin and Inflammatory Status in Early Pregnancy: An Observational Cohort Study." Nutrients 8, no. 12: 776.
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