Evidence map›Paper›PMID 27010666›Full record

ArticleScientific reports2016

The BDNF Val66Met polymorphism is associated with the functional connectivity dynamics of pain modulatory systems in primary dysmenorrhea.

Shyh-Yuh Wei, Hsiang-Tai Chao, Cheng-Hao Tu, Ming-Wei Lin, Wei-Chi Li, Intan Low, Horng-Der Shen, Li-Fen Chen, Jen-Chuen Hsieh

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

26 citing papers in PubMed, 45 citations in OpenAlex.

  1. Trial
  2. Trial
  3. A review of descending pain modulation in humans.Frontiers in pain research (Lausanne, Switzerland) · 2026
    Review
  4. Article
  5. Reward system neurodynamics during menstrual pain modulated byFrontiers in molecular neuroscience · 2024
    Article
  6. Article
  7. Article
  8. Frontiers in neuroscience · 2023
    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

9 authors at 2 institutions in 1 country.

Shyh-Yuh WeiInstitute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
Hsiang-Tai ChaoDepartment of Obstetrics and Gynecology, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
Cheng-Hao TuInstitute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
Ming-Wei LinInstitute of Public Health, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
Wei-Chi LiInstitute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
Intan LowInstitute of Biomedical Informatics, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
Horng-Der ShenLaboratory of Microbiology, Division of Basic Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.
Li-Fen ChenInstitute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
Jen-Chuen HsiehInstitute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
National Yang Ming Chiao Tung University · TWTaipei Veterans General Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Primary dysmenorrhea (PDM), menstrual pain without an organic cause, is a prevailing problem in women of reproductive age. We previously reported alterations of structure and functional connectivity (FC) in the periaqueductal gray (PAG) of PDM subjects. Given that the brain derived neurotrophic factor (BDNF) acts as a pain modulator within the PAG and the BDNF Val66Met polymorphism contributes towards susceptibility to PDM, the present study of imaging genetics set out to investigate the influence of, firstly, the BDNF Val66Met single nucleotide polymorphism and, secondly, the genotype-pain interplays on the descending pain modulatory systems in the context of PAG-seeded FC patterning. Fifty-six subjects with PDM and 60 controls participated in the current study of resting-state functional magnetic resonance imaging (fMRI) during the menstruation and peri-ovulatory phases; in parallel, blood samples were taken for genotyping. Our findings indicate that the BDNF Val66Met polymorphism is associated with the diverse functional expressions of the descending pain modulatory systems. Furthermore, PAG FC patterns in pain-free controls are altered in women with PDM in a genotype-specific manner. Such resilient brain dynamics may underpin the individual differences and shed light on the vulnerability for chronic pain disorders of PDM subjects.

Indexed as

Brain MappingPolymorphism, Single NucleotideAdultBrain-Derived Neurotrophic FactorDysmenorrheaFemaleHumansMethioninePainValineYoung AdultBDNF protein, humanBrain-Derived Neurotrophic FactorMethionineValine

Identifiers

PMID27010666
PMCPMC4806293
OpenAlexW2331319507

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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.