Evidence map›Paper›PMID 31122963›Full record

ArticleBMJ open2019

Association between homocysteine, vitamin B

Yang Chen, Jie Li, Tianyu Li, Jianxiong Long, Jinling Liao, Gong-Hong Wei, Zengnan Mo, Jiwen Cheng

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 21% 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, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Dietary intakes of vitamin BTranslational andrology and urology · 2024
    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

8 authors at 4 institutions in 2 countries.

Yang Chen *Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
Jie Li *Center for Genomicand Personalized Medicine, Guangxi Medical University, Nanning, China.
Tianyu LiDepartment of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
Jianxiong LongCenter for Genomicand Personalized Medicine, Guangxi Medical University, Nanning, China.
Jinling LiaoCenter for Genomicand Personalized Medicine, Guangxi Medical University, Nanning, China.
Gong-Hong WeiFaculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland.
Zengnan MoDepartment of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
Jiwen ChengDepartment of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
First Affiliated Hospital of GuangXi Medical University · CNGuangxi Medical University · CNGuangxi Zhuang Autonomous Region Health and Family Planning · CNUniversity of Oulu · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesErectile dysfunction (ED) affects up to 53.4% of men aged 30-80 years. In this study, we aimed to examine the association between homocysteine (HCY), vitamin B

designCross-sectional study.

settingGuangxi, China.

participantsA total of 1381 participants who completed questionnaires were included, between September 2009 and December 2009. MEASURES: ED was evaluated by the International Index of Erectile Function scores. Also, the values of HCY, B12 and FA were acquired. Then, regression and between-group analyses were performed.

resultsNo association between FA and ED was found. Significant correlations between HCY and ED were found-the relationships between these two parameters were most notable in men aged over 60 years and in men living alone (bachelors or bachelorhood). B12 levels were higher in men with ED (718.53±234.37 pg/mL vs 688.74±229.68, p=0.015). Using multinomial logistic regression analyses, B12 levels were related to mild ED (multivariate adjusted analysis: OR 1.620, 95% CI 1.141 to 2.300, p=0.007), especially among men aged 40-49 years (OR 2.907, 95% CI 1.402 to 6.026, p=0.004).

conclusionsWe report, for the first time, a relationship between B12 levels and ED. We also found specific cohorts of men for whom the relationship between HCY levels and ED is most prominent. Further studies are required to elucidate the mechanisms underlying these relationships-these may ultimately result in new therapies for ED.

Indexed as

AdultAgedChinaCross-Sectional StudiesErectile DysfunctionFolic AcidHomocysteineHumansMaleMiddle AgedRisk FactorsSurveys and QuestionnairesVitamin B 12Folic AcidHomocysteineVitamin B 12erectile dysfunctionfolic acidhomocysteineVitamin B12

Identifiers

PMID31122963
PMCPMC6537974
OpenAlexW2944964939

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.