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ArticleScientific reports2023

Gut microbiota of Parkinson's disease in an appendectomy cohort: a preliminary study.

Keiichi Nakahara, Shunya Nakane, Kazuo Ishii, Tokunori Ikeda, Yukio Ando

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07478029 (Impact of Polyethylene Glycol), which is not on this map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.5field-weighted citation impact, top 11% 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.

NCT07478029 recruitingnot on this mapstarted 2024, after this paper: background citation

Impact of Polyethylene Glycol (PEG) Bowel Preparation on Intestinal Microbiota Composition and Diversity in Patients Undergoing Appendectomy

TypeobservationalSponsorHuaping XieRan2024 to 2027Enrolled10ConditionsAppendicitis, Appendicitis AcuteArmsBowel Preparation with Polyethylene Glycol (PEG) Laxatives
3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 16 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Keiichi Nakahara *Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan.
Shunya Nakane *Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan. nakaneshunya@gmail.com.
Kazuo IshiiBiostatistics Center, Kurume University, 67 Asahi-Machi, Kurume, Fukuoka, 830-0011, Japan.
Tokunori IkedaDepartment of Clinical Investigation, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan.
Yukio AndoDepartment of Neurology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan.
Kumamoto University · JPKurume University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In patients with Parkinson's disease (PD), α-synuclein pathology is thought to spread to the brain via the dorsal motor nucleus of the vagus nerve. The link between the gut microbiome and PD has been explored in various studies. The appendix might play an important role in immunity by maintaining the microbiota as a reservoir. In recent times, appendectomy has been linked to a lower risk of PD, possibly owing to the role of the appendix in altering the gut microbiome. We aimed to elucidate whether the gut microbiota affects PD development in the appendectomy cohort. We analyzed the fecal microbial composition in patients with PD and healthy controls with and without a history of appendectomy. The abundance of microbes from the family Enterobacteriaceae was higher in feces samples from patients with Parkinson's disease compared to that in samples collected from healthy controls. Furthermore, there was a significant phylogenetic difference between patients with PD and healthy controls who had undergone appendectomy. There was a significant phylogenetic difference between patients with PD and HCs who had undergone APP. These results suggest the correlation between gut microbiota and PD in patients who have undergone APP.

Indexed as

Gastrointestinal MicrobiomeParkinson DiseaseAppendectomyFecesHumansPhylogeny

Identifiers

PMID36750613
PMCPMC9905566
OpenAlexW4319344696

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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.