Evidence map›Paper›PMID 31934160›Full record

ReviewInternational journal of clinical and experimental pathology2019

Association between dopamine receptor D2 TaqIA polymorphism and Parkinson disease risk: a meta-analysis.

Yang Song, Zhi-Yun Wang, Yan-Yu Jin, Jie Guo

Abstract readReview
In one paragraph

Review in International journal of clinical and experimental pathology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Review
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

4 authors.

Yang SongDepartment of Neurology, Tianjin First Center Hospital Tianjin 300192, China.
Zhi-Yun WangDepartment of Neurology, Tianjin First Center Hospital Tianjin 300192, China.
Yan-Yu JinDepartment of Neurology, Tianjin First Center Hospital Tianjin 300192, China.
Jie GuoDepartment of Neurology, Tianjin First Center Hospital Tianjin 300192, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although many publications have evaluated the correlation between dopamine receptor D2 (DRD2) TaqIA polymorphism and Parkinson disease (PD), the results remain inconclusive. In order to further address the association between DRD2 TaqIA polymorphism and PD risk, we performed a meta-analysis of all eligible studies from more databases. Related studies were identified from six databases involving PubMed, Springer Link, Ovid, Chinese Wanfang Data Knowledge Service Platform, Chinese National Knowledge Infrastructure (CNKI), and Chinese Biology Medicine (CBM) through Octorber 2018. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the strength of the associations. A total of 13 studies including 3558 PD patients and 10186 controls were involved in this meta-analysis. Overall, no significant association was found between DRD2 TaqIA polymorphism and PD risk in the total population. A further subgroup study by ethnicity showed a significant association between DRD2 TaqIA polymorphism and PD in Caucasians (for A1 vs. A2: P=0.02, OR=1.14, 95% CI: 1.02-1.27; for (A1A1 + A1A2) vs. A2A2: P=0.03, OR=1.16, 95% CI: 1.02-1.33). No significant results were observed in Asians. In conclusion, this meta-analysis provides evidence that DRD2 TaqIA polymorphism may contribute to the PD development in Caucasians, and large-scale well-designed studies are required in future to confirm this conclusion.

Indexed as

dopamine receptor D2Meta-analysisParkinson diseasepolymorphism

Identifiers

PMID31934160
PMCPMC6949836

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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.