Evidence map›Paper›PMID 31211174›Full record

ArticleAnnals of clinical and translational neurology2019

Discordance in monozygotic Parkinson's disease twins - continuum or dichotomy?

Alexander Balck, Max Borsche, Meike Kasten, Katja Lohmann, Philip Seibler, Norbert Brüggemann, Christine Klein

Abstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Alexander BalckInstitute of Neurogenetics University of Lübeck Lübeck Germany.
Max BorscheInstitute of Neurogenetics University of Lübeck Lübeck Germany.
Meike KastenInstitute of Neurogenetics University of Lübeck Lübeck Germany.
Katja LohmannInstitute of Neurogenetics University of Lübeck Lübeck Germany.
Philip SeiblerInstitute of Neurogenetics University of Lübeck Lübeck Germany.
Norbert BrüggemannInstitute of Neurogenetics University of Lübeck Lübeck Germany.
Christine KleinInstitute of Neurogenetics University of Lübeck Lübeck Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Differences in concordance rates between monozygotic and dizygotic twin pairs with Parkinson's disease (PD) have been used to estimate genetic influences in PD pathogenesis. We hypothesized that "discordance" may not in all cases adequately reflect the multifaceted disease manifestation of PD that involves a continuum from prodromal to definite PD. Deep clinical phenotyping, combining motor, nonmotor, and imaging modalities in five monozygotic, seemingly discordant twin pairs revealed motor and/or nonmotor features and/or nigral hyperechogenicity in all of the five putatively unaffected twins. In conclusion, our data suggest that concordance rates in monozygotic twins may be higher than previously appreciated.

Indexed as

AdultAgedDiseases in TwinsFemaleHumansMaleMiddle AgedParkinson DiseaseSubstantia NigraTwins, Monozygotic

Identifiers

PMID31211174
PMCPMC6562023

What OpenQuestion holds

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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.