Evidence map›Paper›PMID 34909515›Full record

ArticleJournal of the Endocrine Society2022

Maternal and Neonatal 3-epi-25-hydroxyvitamin D Concentration and Factors Influencing Their Concentrations.

Di Mao, Lai-Yuk Yuen, Chung-Shun Ho, Chi-Chiu Wang, Claudia Ha-Ting Tam, Michael Ho-Ming Chan, William L Lowe, Ronald Ching-Wan Ma, Wing-Hung Tam

Open access · goldAbstract read
In one paragraph

Article in Journal of the Endocrine Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.8field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 15 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Di MaoDepartment of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China.
Lai-Yuk YuenDepartment of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China.ORCID https://orcid.org/0000-0003-2249-1077
Chung-Shun HoDepartment of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China.
Chi-Chiu WangDepartment of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China.ORCID https://orcid.org/0000-0002-3928-7278
Claudia Ha-Ting TamDepartment of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China.
Michael Ho-Ming ChanDepartment of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China.
William L LoweDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Ronald Ching-Wan MaLi Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.ORCID https://orcid.org/0000-0002-1227-803X
Wing-Hung TamDepartment of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China.ORCID https://orcid.org/0000-0003-1189-740X
Chinese University of Hong Kong · HKNorthwestern University · US

Funding

Hyperglycemia and Adverse Pregnancy Outcome (HAPO)R01HD034243 · NICHD · NORTHWESTERN UNIVERSITY AT CHICAGO · PI METZGER, BOYD E · 1999 to 2010
$16.2M
HAPO: DATA COORDINATING CENTERR01HD034242 · NICHD · NORTHWESTERN UNIVERSITY AT CHICAGO · PI DYER, ALAN R · 1999 to 2007
$3.0M
NICHD NIH HHS R01 HD034242NICHD NIH HHS R01 HD034243
6 · The paper itself

Abstract

backgroundLittle is known about the presence of 3-epi-25 hydroxyvitamin D in maternal and neonatal circulation, the extent of its contribution to total 25 hydroxyvitamin D, or factors influencing its levels.

methodsA total of 1502 and 1321 archived maternal and umbilical cord serum samples from the Hyperglycemia and Adverse Pregnancy Outcome Study cohort from Hong Kong were assayed for 25(OH)D2, 25(OH)D3, and isomeric form of 25(OH)D3 (3-epi-25(OH)D3) by a liquid chromatography-tandem mass spectrometry method.

resultsVitamin D deficiency (total serum 25(OH)D level < 50 nmol/L) and severe vitamin D deficiency (total serum 25(OH)D level < 25 nmol/L) occurred in 590 (39.3%) and 25 (1.7%) mothers, respectively. 3-epi-25(OH)D3 could be detected in 94.5% of maternal and 92.1% of neonatal umbilical sera, with the highest 3-epi-25(OH)D3 levels contributing to 19.9% and 15.3% of the maternal and umbilical cord sera 25(OH)D3 levels, respectively. Pregnancy with a male fetus, ambient solar radiation, and maternal glycemia and 25(OH)D3 levels were independent factors associated with maternal 3-epi-25(OH)D3 level. Advanced maternal age, multiparity, maternal gestational weight gain below the Institute of Medicine recommendation, maternal glycemic status, and earlier gestational age at delivery were significantly associated with higher umbilical cord serum 3-epi-25(OH)D3.

conclusions3-epi-25(OH)D3 accounted for a significant portion of total 25(OH)D in maternal and neonatal circulations. Further study is needed to determine the possible mechanism underlying this observation.

Indexed as

25-hydroxyvitamin D3-epi-25(OH)D3maternalumbilical cordvitamin D

Identifiers

PMID34909515
PMCPMC8664761
OpenAlexW3215793657

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.