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Influence of Maternal Prenatal Vitamin D Status on Infant Oral Health

Influence of Maternal Prenatal Vitamin D Status on Infant Oral Health

Influence of Maternal Prenatal Vitamin D Status on Infant Oral Health

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have been used to pr<str<strong>on</strong>g>of</str<strong>on</strong>g>ile vitamin D status including assaying serum c<strong>on</strong>centrati<strong>on</strong>s <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

25(OH)D, taking dietary histories and food frequency questi<strong>on</strong>naires (FFQ), and<br />

assessments <str<strong>on</strong>g>of</str<strong>on</strong>g> intake <str<strong>on</strong>g>of</str<strong>on</strong>g> vitamin supplements. Others recommend c<strong>on</strong>comitant<br />

measurement <str<strong>on</strong>g>of</str<strong>on</strong>g> other serum metabolites to assist in pr<str<strong>on</strong>g>of</str<strong>on</strong>g>iling vitamin D adequacy,<br />

including parathyroid horm<strong>on</strong>e (PTH). The inverse relati<strong>on</strong>ship between PTH and<br />

25(OH)D 9,26<br />

also indicates that PTH may be an appropriate indicator <str<strong>on</strong>g>of</str<strong>on</strong>g> vitamin D<br />

sufficiency.<br />

N<strong>on</strong>etheless, the most reliable method to determine vitamin D status is still the<br />

simple serum assay. Although there is variati<strong>on</strong> in laboratory methodologies such as<br />

radioimmunoassay (RIA) or high-performance liquid chromatography (HPLC) for<br />

measuring and reporting 25(OH)D, such assays are accepted for investigative studies. 16,19<br />

The lower limit <str<strong>on</strong>g>of</str<strong>on</strong>g> normal for serum 25(OH)D is c<strong>on</strong>troversial, with suggested values in<br />

the literature ranging from 15 to 40 nmol/L. 6,24,27-33 25(OH)D c<strong>on</strong>centrati<strong>on</strong>s

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