Evidence map›Paper›PMID 21781348›Full record

ArticleBMC neurology2011

Genetic polymorphisms involved in dopaminergic neurotransmission and risk for Parkinson's disease in a Japanese population.

Chikako Kiyohara, Yoshihiro Miyake, Midori Koyanagi, Takahiro Fujimoto, Senji Shirasawa, Keiko Tanaka, Wakaba Fukushima, Satoshi Sasaki, Yoshio Tsuboi, Tatsuo Yamada and 8 more

Open access · goldAbstract read
In one paragraph

Article in BMC neurology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 4 pooled it
2.8field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 4 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Val158Met polymorphism of COMT gene and Parkinson's disease risk in Asians.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2015
    Pooled it
  4. Pooled it
  5. Review
  6. Type A monoamine oxidase; its unique role in mood, behavior and neurodegeneration.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Review
  7. Article
  8. Review
  9. Parkinson's disease · 2022
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
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  19. Article
  20. Sexual dimorphism in xenobiotic genetic variants-mediated risk for Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2014
    Article
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

18 authors at 5 institutions in 1 country.

Chikako KiyoharaDepartment of Preventive Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. chikako@phealth.med.kyushu-u.ac.jp
Yoshihiro Miyake
Midori Koyanagi
Takahiro Fujimoto
Senji Shirasawa
Keiko Tanaka
Wakaba Fukushima
Satoshi Sasaki
Yoshio Tsuboi
Tatsuo Yamada
Tomoko Oeda
Hiroyuki Shimada
Nobutoshi Kawamura
Nobutaka Sakae
Hidenao Fukuyama
Yoshio Hirota
Masaki Nagai
Fukuoka Kinki Parkinson's Disease Study Group
Fukuoka University · JPKyushu University · JPOsaka City University · JPKyoto University · JPSaitama Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundParkinson's disease (PD) is characterized by alterations in dopaminergic neurotransmission. Genetic polymorphisms involved in dopaminergic neurotransmission may influence susceptibility to PD.

methodsWe investigated the relationship of catechol-O-methyltransferase (COMT), monoamine oxidase B (MAOB), dopamine receptor (DR) D2 and DRD4 polymorphisms and PD risk with special attention to the interaction with cigarette smoking among 238 patients with PD and 369 controls in a Japanese population.

resultsSubjects with the AA genotype of MAOB rs1799836 showed a significantly increased risk of PD (odds ratio (OR) = 1.70, 95% confidence interval (CI) = 1.12 - 2.58) compared with the AG and GG genotypes combined. The AA genotype of COMT rs4680 was marginally associated with an increased risk of PD (OR = 1.86, 95% CI = 0.98 - 3.50) compared with the GG genotype. The DRD2 rs1800497 and DRD4 rs1800955 polymorphisms showed no association with PD. A COMT -smoking interaction was suggested, with the combined GA and AA genotypes of rs4680 and non-smoking conferring significantly higher risk (OR = 3.97, 95% CI = 2.13 - 7.41) than the AA genotype and a history of smoking (P for interaction = 0.061). No interactions of smoking with other polymorphisms were observed.

conclusionsThe COMT rs4680 and MAOB rs1799836 polymorphisms may increase susceptibility to PD risk among Japanese. Future studies involving larger control and case populations and better pesticide exposure histories will undoubtedly lead to a more thorough understanding of the role of the polymorphisms involved in the dopamine pathway in PD.

Indexed as

Genetic Predisposition to DiseaseAsian PeopleCatechol O-MethyltransferaseFemaleHumansMaleMonoamine OxidaseParkinson DiseasePolymerase Chain ReactionPolymorphism, Single NucleotideReceptors, Dopamine D2Receptors, Dopamine D4Risk FactorsSmokingCatechol O-MethyltransferaseDRD4 protein, humanMonoamine OxidaseReceptors, Dopamine D2Receptors, Dopamine D4

Identifiers

PMID21781348
PMCPMC3199768
OpenAlexW2043087292

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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.