Evidence map›Paper›PMID 25640280›Full record

ArticleScientific reports2015

The BDNF Val66Met polymorphism and plasma brain-derived neurotrophic factor levels in Han Chinese heroin-dependent patients.

Shiou-Lan Chen, Sheng-Yu Lee, Yun-Hsuan Chang, Tzu-Yun Wang, Shih-Heng Chen, Chun-Hsien Chu, Po See Chen, Yen Kuang Yang, Jau-Shyong Hong, Ru-Band Lu

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In one paragraph

Article in Scientific reports, 2015. 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
1.7field-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

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3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 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

10 authors at 5 institutions in 2 countries.

Shiou-Lan ChenDepartment of Neurology, School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Sheng-Yu LeeDepartment of Psychiatry, Kaohsiung Veteran's General Hospital, Kaohsiung, Taiwan.
Yun-Hsuan Chang1] Department of Psychiatry, National Cheng Kung University, Taiwan, Taiwan [2] Department of Psychiatry, National Cheng Kung Hospital, Taiwan, Taiwan.
Tzu-Yun Wang1] Department of Psychiatry, National Cheng Kung University, Taiwan, Taiwan [2] Department of Psychiatry, National Cheng Kung Hospital, Taiwan, Taiwan.
Shih-Heng ChenNeuropharmacology Section, Laboratory of Pharmacology and Chemistry, National Institute of Environmental Health Sciences/National Institutes of Health, Research Triangle Park, North Carolina, USA.
Chun-Hsien ChuNeuropharmacology Section, Laboratory of Pharmacology and Chemistry, National Institute of Environmental Health Sciences/National Institutes of Health, Research Triangle Park, North Carolina, USA.
Po See Chen1] Department of Psychiatry, National Cheng Kung University, Taiwan, Taiwan [2] Department of Psychiatry, National Cheng Kung Hospital, Taiwan, Taiwan.
Yen Kuang Yang1] Department of Psychiatry, National Cheng Kung University, Taiwan, Taiwan [2] Department of Psychiatry, National Cheng Kung Hospital, Taiwan, Taiwan.
Jau-Shyong HongNeuropharmacology Section, Laboratory of Pharmacology and Chemistry, National Institute of Environmental Health Sciences/National Institutes of Health, Research Triangle Park, North Carolina, USA.
Ru-Band Lu1] Institute of Behavioral Medicine, National Cheng Kung University, Taiwan, Taiwan [2] Department of Psychiatry, National Cheng Kung University, Taiwan, Taiwan [3] Department of Psychiatry, National Cheng Kung Hospital, Taiwan, Taiwan [4] Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Taiwan, Taiwan [5] Addiction Research Center, National Cheng Kung University, Taiwan, Taiwan [6] Center for Neuropsychiatric Research, National Health Research Institute, Tainan, Taiwan.
National Cheng Kung University · TWNational Institutes of Health · USKaohsiung Veterans General Hospital · TWNational Cheng Kung University Hospital · TWNational Institute of Environmental Health Sciences · US

Funding

Roles Of Brain Neuroimmune System In NeurodegenerationZIAES090082 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI HONG, JAU-SHYONG SHYONG · 2009 to 2018
$22.0M
6 · The paper itself

Abstract

BDNF and its gene polymorphism may be important in synaptic plasticity and neuron survival, and may become a key target in the physiopathology of long-term heroin use. Thus, we investigated the relationships between brain-derived neurotrophic factor (BDNF) plasma concentrations and the BDNF Val66Met nucleotide polymorphism (SNP) in heroin-dependent patients. The pretreatment expression levels of plasma BDNF and the BDNF Val66Met SNP in 172 heroin-dependent patients and 102 healthy controls were checked. BDNF levels were significantly lower in patients (F = 52.28, p < 0.0001), but the distribution of the SNP was not significantly different. Nor were plasma BDNF levels significantly different between Met/Met, Met/Val, and Val/Val carriers in each group, which indicated that the BDNF Val66Met SNP did not affect plasma BDNF levels in our participants. In heroin-dependent patients, plasma BDNF levels were negatively correlated with the length of heroin dependency. Long-term (>15 years) users had significantly lower plasma BDNF levels than did short-term (<5 years) users. We conclude that plasma BDNF concentration in habitual heroin users are not affected by BDNF Val66Met gene variants, but by the length of the heroin dependency.

Indexed as

Polymorphism, Single NucleotideAdultAllelesAsian PeopleBrain-Derived Neurotrophic FactorChinaDown-RegulationFemaleGene FrequencyGenotypeHeroinHumansMaleSubstance-Related DisordersTime FactorsBrain-Derived Neurotrophic FactorHeroin

Identifiers

PMID25640280
PMCPMC4313085
OpenAlexW2093354456

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

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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.