Evidence map›Paper›PMID 40604534›Full record

ArticleBMC pregnancy and childbirth2025

Maternal red blood cell folate and vitamin B metabolism with pregnancy outcomes: a retrospective study.

Limin Peng, Yan Gao, Chengkun Yuan, Hongying Kuang

Abstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Awareness and Use of Folic Acid Among Pregnant Women in Western Ukraine: A Pilot Study.International journal of environmental research and public health · 2026
    Article
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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

4 authors.

Limin PengDepartment of Obstetrics, The First Affiliated Hospital , Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China.
Yan GaoDepartment of Obstetrics, The First Affiliated Hospital , Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China.
Chengkun YuanDepartment of Obstetrics, The First Affiliated Hospital , Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China.
Hongying KuangHeilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China. 14745727109@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVitamin B plays a crucial role in pregnancy, influencing maternal and fetal health. However, the impact of Vitamin B metabolism alterations on pregnancy outcomes remains unclear. This study investigates the association between Vitamin B metabolism and adverse pregnancy outcomes (APO) using a retrospective approach.

methodsA total of 1,086 pregnant women were included, categorized into normal and APO groups. Vitamin B markers during pregnancy, including red blood cell (RBC) and plasma levels of folate (5MTHF), Vitamin B2 (VB2), and Vitamin B6 (VB6), as well as methylmalonic acid (MMA) and homocysteine (HCY), were analyzed. LASSO regression was used for feature selection, followed by logistic regression to develop a predictive model. The model's performance was evaluated using ROC curve, calibration curves, decision curve analysis, and external validation.

resultsHigher plasma-5MTHF, RBC-5MTHF, RBC-VB2, and RBC-VB6 levels were significantly associated with normal pregnancy outcomes, whereas elevated MMA and HCY levels correlated with an increased risk of APO (P < 0.05). In addition, maternal age, pregnancy type, pre-BMI, and passive smoking were identified as significant baseline factors. By integrating these baseline characteristics with Vitamin B-related biomarkers, the predictive model demonstrated excellent performance, with an AUC of 0.85 (95% CI: 0.818-0.883) in the training set and 0.807 (95% CI: 0.738-0.876) in the external validation set.

conclusionAlterations in Vitamin B metabolism are significantly associated with pregnancy outcomes. The developed predictive model provides a valuable tool for risk assessment in clinical practice.

Indexed as

ErythrocytesFolic AcidPregnancy OutcomeVitamin B ComplexAdultBiomarkersFemaleHomocysteineHumansMethylmalonic AcidPregnancyRetrospective StudiesRiboflavinVitamin B 6BiomarkersFolic AcidHomocysteineMethylmalonic AcidRiboflavinVitamin B 6Vitamin B Complex5MTHFExternal validationPredictive modelPregnancy outcomesVitamin B metabolism

Identifiers

PMID40604534
PMCPMC12220790

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Registered trials

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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.