Evidence map›Paper›PMID 29340279›Full record

ArticleJournal of translational internal medicine2017

Effect of MTHFR A1298C and MTRR A66G Genetic Mutations on Homocysteine Levels in the Chinese Population: A Systematic Review and Meta-analysis.

Jiancheng Wang, Nengtai Ouyang, Long Qu, Tengfei Lin, Xianglin Zhang, Yaren Yu, Chongfei Jiang, Liling Xie, Liping Wang, Zhigui Wang and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of translational internal medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed, 11 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

16 authors at 11 institutions in 2 countries.

Jiancheng WangNational Clinical Research Center for Kidney Disease; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
Nengtai OuyangCell Molecular Diagnostic Center, Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, the Second Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China.
Long QuNational Clinical Research Center for Kidney Disease; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
Tengfei LinBeijing Advanced Innovation Center for Food Nutrition and Human Health, Key Laboratory for Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
Xianglin ZhangNational Clinical Research Center for Kidney Disease; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
Yaren YuNational Clinical Research Center for Kidney Disease; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
Chongfei JiangNational Clinical Research Center for Kidney Disease; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
Liling XieNational Clinical Research Center for Kidney Disease; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
Liping WangDepartment of Gynecology, Shanxi Medical University, Taiyuan, Shanxi Province, China.
Zhigui WangDepartment of Pathology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China.
Shuzhen RenDepartment of Clinical Laboratory, Pingtan Comprehensive Experimental Area Hospital, Fuzhou, Fujian Province, China.
Shizhi ChenCell Molecular Diagnostic Center, Department of Clinical Laboratory, Second Hospital Affiliated of Chongqing Medical University, Chongqing, China.
Jiang HuangDepartment of Cardiology, Xiangya Pingkuang Cooperation Hospital, Pingxiang, Jiangxi Province, China.
Fang LiuDepartment of Clinical Laboratory, West China Second University Hospital of Sichuan University, Chengdu, Sichuan Province, China.
Weiqing HuangDepartment of Pathology, Qingdao Municipal Hospital, Affiliated to Medical College of Qingdao University, Qingdao, Shandong Province, China.
Xianhui QinNational Clinical Research Center for Kidney Disease; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
Nanfang Hospital · CNNational Clinical Research · USSouthern Medical University · CNChina Agricultural University · CNDalian Medical University · CNFifth Affiliated Hospital of Zhengzhou University · CNJiangxi Pingxiang People's Hospital · CNQingdao Municipal Hospital · CNShanxi Medical University · CNSun Yat-sen University · CNWest China Second University Hospital of Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesThe Chinese population typically has inadequate folate intake and no mandatory folic acid fortification. Methylenetetrahydrofolate reductase (MTHFR) and methionine synthase reductase (MTRR) are the two key regulatory enzymes in the folate/homocysteine (Hcy) metabolism. Hcy has been implicated in the pathogenesis of cardiovascular disease. We conducted a meta-analysis to assess whether the MTHFR gene A1298C and the MTRR gene A66G polymorphisms affect Hcy levels in the Chinese population.

methodsThis analysis included 13 studies with Hcy levels reported as one of the study measurements. Summary estimates of weighted mean differences and 95% confidence intervals (CIs) were obtained using random-effect models.

resultsOverall, there were no significant differences in Hcy concentrations between participants with the MTHFR 1298 CC (12 trials,

conclusionsNeither the MTHFR A1298C polymorphism nor the MTRR A66G polymorphism affects Hcy levels in the Chinese population.

Indexed as

homocysteineMeta-analysisMTHFR gene A1298C polymorphismMTRR gene A66G polymorphism

Identifiers

PMID29340279
PMCPMC5767712
OpenAlexW2785467754

What OpenQuestion holds

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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.