Evidence map›Paper›PMID 31225691›Full record

ArticleBrain and behavior2019

Lack of association between serum homocysteine level and middle cerebral artery stenosis.

Haitao Zhou, Chao Huang, Ruihua Liu, Chao Liu, Congmin Ma, Xiangyang Ren

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2019. 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
0.6field-weighted citation impact, top 31% 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, 5 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

6 authors at 1 institution in 1 country.

Haitao ZhouNeurology Department, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China.ORCID 0000-0002-0521-6551
Chao HuangNeurology Department, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China.
Ruihua LiuNeurology Department, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China.
Chao LiuNeurology Department, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China.
Congmin MaNeurology Department, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China.
Xiangyang RenNeurology Department, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China.
Luoyang Central Hospital Affiliated to Zhengzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesLowering homocysteine (HCY) has beneficial effects on vascular events in primary prevention but not in secondary prevention. Research on serum HCY level and middle cerebral artery (MCA) stenosis is lacking. The purpose of the study was to determine the association between these factors and provide more evidence for the prevention of ischemic stroke.

methodsA total of 412 patients (35-93 years old) in the Neurology Department were recruited. Data of clinical and biochemical vascular risk factors were collected. MCA stenosis, including M1, M2, and M3, was determined by brain magnetic resonance angiography (MRA) and classified into stenosis or no stenosis. The differences and associations were analyzed by relevant statistical methods.

resultsThere was no significant difference (p = 0.325) in HCY levels between the MCA stenosis and no stenosis groups at baseline. Logistic regression analysis demonstrated that there was no significant association between HCY levels and MCA stenosis (p = 0.447). After the two groups were matched for age and sex, there was still no difference (p = 0.540 for males and 0.061 for females) or association (p = 0.709 for males and 0.098 for females). In addition, we found that ischemic stroke was more prevalent in the MCA stenosis group and uric acid was higher in males with MCA stenosis.

conclusionsThe study indicates a lack of association between serum HCY level and MCA stenosis, which may partially explain the negative results of secondary prevention clinical trials focused on lowering serum HCY level. Future studies on HCY reduction should focus more on primary prevention of ischemic stroke.

Indexed as

Infarction, Middle Cerebral ArteryMiddle Cerebral ArteryAgedBrainConstriction, PathologicCorrelation of DataFemaleHomocysteineHumansMagnetic Resonance AngiographyMaleMiddle AgedRisk FactorsHomocysteinehomocysteineischemic strokemiddle cerebral arterystenosis

Identifiers

PMID31225691
PMCPMC6710193
OpenAlexW2950179905

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LicenceCC BY
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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.