Evidence map›Paper›PMID 36054705›Full record

Observational studyMovement disorders : official journal of the Movement Disorder Society2022

Use of Glycolysis-Enhancing Drugs and Risk of Parkinson's Disease.

Jacob E Simmering, Michael J Welsh, Jordan Schultz, Nandakumar S Narayanan

2 registry-linked trialsOpen access · hybridAbstract readObservational Study
In one paragraph

Observational study in Movement disorders : official journal of the Movement Disorder Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 7% 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.

NCT06984757 naenrolling by invitationnot on this map

Mid-frontal Delta/Theta and Cognitive Control

TypeinterventionalSponsorNandakumar NarayananRan2017 to 2029Enrolled635ConditionsParkinson&Amp, Amp, #39, s Disease (PD)ArmsDeep-brain Stimulation, Transcranial Magnetic Stimulation, Transcranial Alternating Current Stimulation
NCT07464028 phase2not yet recruitingnot on this mapstarted 2026, after this paper: background citation

Assessing Target Engagement for Terazosin in Parkinson's Disease (TZPD2)

TypeinterventionalSponsorNandakumar NarayananRan2026 to 2031Enrolled120ConditionsParkinson's Disease (PD)ArmsTerazosin 5 MG, Placebo
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Glycolysis-enhancing αAlzheimer's research & therapy · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. αPharmaceuticals (Basel, Switzerland) · 2025
    Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Epigenetic associations ofFrontiers in psychiatry · 2024
    Article
  17. Review
  18. Observational
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Jacob E SimmeringDepartment of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.ORCID 0000-0001-9172-0983
Michael J WelshDepartment of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Jordan SchultzDepartment of Neurology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.ORCID 0000-0002-0985-7268
Nandakumar S NarayananPappajohn Biomedical Institute, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
University of Iowa · US

Funding

Mid-frontal delta/theta rhythms and cognitive control in PDR01NS100849 · NINDS · UNIVERSITY OF IOWA · PI JAMES F CAVANAGH, Nandakumar Narayanan · 2017 to 2026
$3.6M
The University of Iowa Clinical and Translational Science AwardKL2TR002536 · NCATS · UNIVERSITY OF IOWA · PI BASSUK, ALEXANDER G · 2018 to 2022
$3.3M
Investigating Autonomic Dysfunction as an Early Pathologic Feature of Huntington’s DiseaseK23NS117736 · NINDS · UNIVERSITY OF IOWA · PI SCHULTZ, JORDAN · 2021 to 2025
$895k
The Administrative Core of Prefrontal Cortex, Cognition, and Speech Symptoms in Parkinson’s disease (PRECIS-PD)P20NS123151 · NINDS · UNIVERSITY OF IOWA · PI GREENLEE, JEREMY · 2021 to 2022
$890k
Howard Hughes Medical InstituteNCATS NIH HHS KL2 TR002536NINDS NIH HHS K23 NS117736NINDS NIH HHS P20 NS123151NINDS NIH HHS R01 NS100849
6 · The paper itself

Abstract

backgroundTerazosin (TZ) and closely related α1-adrenergic receptor antagonists (doxazosin [DZ] and alfuzosin [AZ]) enhance glycolysis and reduce neurodegeneration in animal models. Observational evidence in humans from several databases supports this finding; however, a recent study has suggested that tamsulosin, the comparator medication, increases the risk of Parkinson's disease.

aimsWe consider a different comparison group of men taking 5α-reductase inhibitors (5ARIs) as a new, independent comparison allowing us to both obtain new estimates of the association between TZ/DZ/AZ and Parkinson's disease outcomes and validate tamsulosin as an active comparator.

methodsUsing the Truven Health Analytics Marketscan database, we identified men without Parkinson's disease, newly started on TZ/DZ/AZ, tamsulosin, or 5ARIs. We followed these matched cohorts to compare the hazard of developing Parkinson's disease. We conducted sensitivity analyses using variable duration of lead-in to mitigate biases introduced by prodromal disease.

resultsWe found that men taking TZ/DZ/AZ had a lower hazard of Parkinson's disease than men taking tamsulosin (hazard ratio (HR) = 0.71, 95% CI [confidence interval]: 0.65-0.77, n = 239,888) and lower than men taking 5ARIs (HR = 0.84, 95% CI: 0.75-0.94, n = 129,116). We found the TZ/DZ/AZ versus tamsulosin HR to be essentially unchanged with up to 5 years of lead-in time; however, the TZ/DZ/AZ versus 5ARI effect became attenuated with longer lead-in durations.

conclusionsThese data suggest that men using TZ/DZ/AZ have a somewhat lower risk of developing Parkinson's disease than those using tamsulosin and a slightly lower risk than those using 5ARIs. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

Parkinson DiseaseProstatic Hyperplasia5-alpha Reductase InhibitorsAnimalsGlycolysisHumansMaleTamsulosin5-alpha Reductase InhibitorsTamsulosinepidemiologyParkinson's diseasepharmacoepidemiology

Identifiers

PMID36054705
PMCPMC9669185
OpenAlexW4292848022

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.