Evidence map›Paper›PMID 33405375›Full record

ArticleBrain and behavior2020

Association between BDNF rs6265 polymorphisms and postoperative cognitive dysfunction in Chinese Han Population.

Songhui Xie, Lu Yu, Mingming Zhou, Li Liu, Daoyun Lei, Chao Han

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 25% 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

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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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 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.

Songhui XieDepartment of Anesthesiology, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China.
Lu YuDepartment of Anesthesiology, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China.
Mingming ZhouDepartment of Anesthesiology, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China.
Li LiuDepartment of Anesthesiology, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China.
Daoyun LeiDepartment of Anesthesiology, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China.
Chao HanDepartment of Anesthesiology, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China.ORCID 0000-0002-6869-0701
Jiangsu University · CN

Funding

Clinical Medical Science and Technology Developme JLY20180062Science and Technology Innovation Project of Yixing 2016-11The General Program of Health Commission of Wuxi 2019-MS-34
6 · The paper itself

Abstract

introductionBrain-derived neurotrophic factor (BDNF) plays a critical role in the pathogenesis of postoperative cognitive dysfunction (POCD). In present study, we aimed to assess the possible association between POCD and BDNF rs6265 polymorphisms.

methods124 patients aged 60 years or older scheduled for elective surgery under general anesthesia and 25 age- and gender-matched healthy volunteers were recruited. POCD was identified using a neuropsychological test battery administered preoperatively, 7 days, and 3 months after surgery. Genotyping of rs6265 was performed using polymerase chain reaction amplification and restriction fragment length polymorphism analysis.

results99 patients and 25 healthy controls were finally enrolled in the analysis. 29(29.3%) and 18(18.2%) of 99 patients had POCD at 7 days and 3 months after surgery, respectively. The patients carrying a G allele at the rs6265 locus showed a lower risk for POCD than an A allele carriers on postoperative 7 days, but not 3 months after surgery (OR = 0.67; 95% CI: 0.47-0.96; p = .017; OR = 0.69; 95% CI: 0.42-1.13; p = .14, respectively). The risk of POCD at 7 days following surgery was significantly lower in additive model (OR = 0.41; 95% CI: 0.2-0.84; p = .015) and dominant model (OR = 0.35; 95% CI: 0.13-0.96; p = .042).

conclusionWe tentatively demonstrate that BDNF rs6265 polymorphisms might be associated with occurrence of POCD at 7 days after surgery and the A > G mutant at the rs6265 locus be likely a protective factor for early POCD in Chinese Han population.

Indexed as

Cognitive DysfunctionPostoperative Cognitive ComplicationsBrain-Derived Neurotrophic FactorChinaGenotypeHumansPolymorphism, Single NucleotideBDNF protein, humanBrain-Derived Neurotrophic FactorBDNFcognitiongenotypepolymorphismsingle nucleotide

Identifiers

PMID33405375
PMCPMC7559622
OpenAlexW3082934486

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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.