ArticleFrontiers in neurology2021
Lower GDNF Serum Level Is a Possible Risk Factor for Constipation in Patients With Parkinson Disease: A Case-Control Study.
Article in Frontiers in neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- BDNF and GDNF in Parkinson's Disease: Associations with Clinical Features, Disease Course, and Progression-A Systematic Review.Molecular neurobiology · 2026Pooled it
- GDNF signaling modulation by Akkermansia muciniphila ameliorates constipation-depression comorbidity in Parkinson's disease.NPJ Parkinson's disease · 2025Article
- Electroacupuncture Improves Gastrointestinal Motility in Rats with Functional Dyspepsia via the GDNF/GFRα1/PI3K/Akt Signaling Pathway.Current medical science · 2025Article
- Glial cell line-derived neurotrophic factor improves impaired colonic motility in experimental colitis mice through connexin 43.World journal of gastroenterology · 2025Article
- GDNF's Role in Mitigating Intestinal Reactive Gliosis and Inflammation to Improve Constipation and Depressive Behavior in Rats with Parkinson's disease.Journal of molecular neuroscience : MN · 2024Article
- From the Gut to the Brain: The Role of Enteric Glial Cells and Their Involvement in the Pathogenesis of Parkinson's Disease.International journal of molecular sciences · 2024Review
- The Potential Application of Aloe Barbadensis Mill. as Chinese Medicine for Constipation: Mini-Review.Drug design, development and therapy · 2024Review
- Testosterone upregulates glial cell line-derived neurotrophic factor (GDNF) and promotes neuroinflammation to enhance glioma cell survival and proliferation.Inflammation and regeneration · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
PubMed holds no abstract for this paper.
Indexed as
Identifiers
What OpenQuestion holds
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.