Evidence mapPaperPMID 33019388Full record

SynthesisMedicine2020

Association between gene polymorphism of folate metabolism and recurrent spontaneous abortion in Asia: A Meta-analysis.

Xiaoxuan Zhao, Yang Zhao, Yunlu Ping, Lu Chen, Xiaoling Feng

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

6 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
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

5 authors at 2 institutions in 1 country.

Xiaoxuan ZhaoDepartment of Heilongjiang University of Chinese Medicine, Harbin.
Yang ZhaoHebei College of Traditional Chinese Medicine, Shijiazhuang.
Yunlu PingDepartment of Heilongjiang University of Chinese Medicine, Harbin.
Lu ChenDepartment of First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China.
Xiaoling FengDepartment of First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China.
Heilongjiang University of Chinese Medicine · CNHebei University of Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To evaluate the association between gene polymorphisms of MTHFR (C677T, A1298C) and MTRR (A66G), and the recurrent spontaneous abortion (RSA) risk in Asia.Related case-control studies were collected, selected, and screened. A meta-analysis was conducted by Stata 12.0 software to assess the association between polymorphisms of target genes and RSA.Altogether 30 studies examining the relationship between genetic polymorphism of folate metabolism and RSA risk were included, among which 20 studies were related to MTHFR C677T, 11 to MTHFR A1298C and 6 to MTRR A66G. The studies suggested that MTHFR C677T polymorphism was closely connected with RSA risk under all models (P < .05). Furthermore according to the subgroup analysis of ethnicity, the correlation between C677T polymorphism and RSA was stronger in north of China when compared with south of China and other Asian countries (P > . 05). For MTHFR A1298C, it was closely related to RSA risk in all gene models except for (AC vs AA) (P < .05). However, when it comes to MTRR A66G, there was no significant correlation between gene A66G polymorphism and RSA risk except for the additive gene model (G vs A) (P < .05).The present evidence shows that the correlation between gene polymorphisms and RSA risk can be found in MTHFR C677T, A1298C (except for heterozygote model) and MTRR A66G (only in additive genotypes), and the detection of the correlated gene polymorphisms mentioned above is of certain guiding significance for preventing RSA and screening high-risk groups.

Indexed as

Abortion, HabitualChinaFemaleFerredoxin-NADP ReductaseFolic AcidHumansMethylenetetrahydrofolate Reductase (NADPH2)Observational Studies as TopicPolymorphism, Single NucleotidePregnancyRisk AssessmentFerredoxin-NADP ReductaseFolic Acidmethionine synthase reductaseMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, human

Identifiers

PMID33019388
PMCPMC7535684
OpenAlexW3090107674

What Socratic holds

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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 Socratic graph.