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@ARTICLE{Abbenhardt:119392,
author = {C. Abbenhardt$^*$ and J. W. Miller and X. Song and E. C.
Brown and T. D. Cheng and M. H. Wener and Y. Zheng and A. T.
Toriola and M. L. Neuhouser and S. A. A. Beresford and K. W.
Makar and L. B. Bailey and D. R. Maneval and R. Green and J.
E. Manson and L. Van Horn and C. M. Ulrich$^*$},
title = {{B}iomarkers of one-carbon metabolism are associated with
biomarkers of inflammation in women.},
journal = {The journal of nutrition},
volume = {144},
number = {5},
issn = {1541-6100},
address = {Bethesda, Md.},
reportid = {DKFZ-2017-00146},
pages = {714 - 721},
year = {2014},
abstract = {Folate-mediated one-carbon metabolism is essential for DNA
synthesis, repair, and methylation. Perturbations in
one-carbon metabolism have been implicated in increased risk
of some cancers and may also affect inflammatory processes.
We investigated these interrelated pathways to understand
their relation. The objective was to explore associations
between inflammation and biomarkers of nutritional status
and one-carbon metabolism. In a cross-sectional study in
1976 women selected from the Women's Health Initiative
Observational Study, plasma vitamin B-6
[pyridoxal-5'-phosphate (PLP)], plasma vitamin B-12, plasma
folate, and RBC folate were measured as nutritional
biomarkers; serum C-reactive protein (CRP) and serum amyloid
A (SAA) were measured as biomarkers of inflammation; and
homocysteine and cysteine were measured as integrated
biomarkers of one-carbon metabolism. Student's t,
chi-square, and Spearman rank correlations, along with
multiple linear regressions, were used to explore relations
between biomarkers; additionally, we tested stratification
by folic acid fortification period and multivitamin use.
With the use of univariate analysis, plasma PLP was the only
nutritional biomarker that was modestly significantly
correlated with serum CRP and SAA (ρ = -0.22 and -0.12,
respectively; P < 0.0001). Homocysteine (μmol/L) showed
significant inverse correlations with all nutritional
biomarkers (ranging from ρ = -0.30 to ρ = -0.46; all P <
0.0001). With the use of multiple linear regression, plasma
PLP, RBC folate, homocysteine, and cysteine were identified
as independent predictors of CRP; and PLP, vitamin B-12, RBC
folate, and homocysteine were identified as predictors of
SAA. When stratified by folic acid fortification period,
nutrition-homocysteine correlations were generally weaker in
the postfortification period, whereas associations between
plasma PLP and serum CRP increased. Biomarkers of
inflammation are associated with PLP, RBC folate, and
homocysteine in women. The connection between the pathways
needs to be further investigated and causality established.
The trial is registered at clinicaltrials.gov as
NCT00000611.},
keywords = {Biomarkers (NLM Chemicals) / Serum Amyloid A Protein (NLM
Chemicals) / Homocysteine (NLM Chemicals) / Carbon (NLM
Chemicals) / Vitamin B 6 (NLM Chemicals) / C-Reactive
Protein (NLM Chemicals) / Folic Acid (NLM Chemicals) /
Cysteine (NLM Chemicals) / Vitamin B 12 (NLM Chemicals)},
cin = {G110},
ddc = {630},
cid = {I:(DE-He78)G110-20160331},
pnm = {317 - Translational cancer research (POF3-317)},
pid = {G:(DE-HGF)POF3-317},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:24647390},
pmc = {pmc:PMC3985828},
doi = {10.3945/jn.113.183970},
url = {https://inrepo02.dkfz.de/record/119392},
}