Evidence map›Paper›PMID 36072127›Full record

ArticleClinical parkinsonism & related disorders2022

Role of cytochrome P450 for vitamin D metabolisms in patients with neurodegenerative disorders.

Asako Kakimoto, Hiromu Ogura, Midori Suenaga, Takayasu Mishima, Shinsuke Fujioka, Shinji Ouma, Yoichi Matsunaga, Yoshio Tsuboi

Open access · goldAbstract read
In one paragraph

Article in Clinical parkinsonism & related disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 30% 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.

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

4 citing papers in PubMed, 5 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

8 authors at 2 institutions in 1 country.

Asako KakimotoDepartment of Neurology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Hiromu OguraDepartment of Neurology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Midori SuenagaDepartment of Medical Pharmacology, Faculty of Pharmaceutical Sciences, Tokushima-Bunri University, Tokushima, Japan.
Takayasu MishimaDepartment of Neurology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Shinsuke FujiokaDepartment of Neurology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Shinji OumaDepartment of Neurology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Yoichi MatsunagaDepartment of Neurology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Yoshio TsuboiDepartment of Neurology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Fukuoka University · JPTokushima Bunri University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: We previously reported lower serum 25-hydroxyvitamin D concentrations in patients with Alzheimer's disease (AD), Parkinson's disease (PD) and Multiple system atrophy (MSA) compared to healthy controls (HC), whereas 1,25-di-hydroxyvitamin D levels were solely lower in MSA patients. We investigate serum concentrations of P450 involved in Vitamin D(VD) hydroxylation to clarify the responsible hydroxylase for the low serum concentrations of VD metabolites. Methods: A total of 79 individuals were enrolled including 20 HC, 20 AD, 19 PD and 20 MSA patients. The serum concentrations of P450 involved in VD hydroxylation were assayed by ELISA. The data were analyzed by the nonparametric Kruskal-Wallis test between groups. Results: Though CYP2R1 and CYP27A1 mediate 25-hydroxylation for VD, CYP2R1 is the main hydroxylase, and CYP27A1 is also involved in VD synthesis. CYP2R1 concentrations showed no differences among groups, while lower CYP27A1 concentrations were found in PD (p < 0.05) and MSA (p < 0.005) compared to HC and differences between AD and MSA (p < 0.05), however no differences between PD and MSA. CYP27B1 is the main 1α-hydroxylase for 25-hydroxyvitamin D and showed differences between HC and PD (p < 0.05), between HC and MSA (p < 0.005) and between PD and MSA (p = 0.055). CYP24A1, which inactivate 1,25-di-hydroxyvitamin D, showed no differences among groups. Conclusions: CYP27A1 might affect VD synthesis and cause low 25-hydroxyvitamin D levels in AD, PD and MSA patients. Low 1,25-di-hydroxyvitamin D levels in MSA patients might be caused by impaired feedback mediated by CYP27B1.

Indexed as

1,25(OH)2D, 1,25-dihydroxyvitamin D325(OH)D, 25-hydroxyvitamin D3AD, Alzheimer's diseaseAlzheimer’s diseaseCYP24A1CYP27A1CYP27BCYP2R1CYP, cytochrome P450HC, Healthy controlMSA, Multiple system atrophyMultiple system atrophyParkinson’s diseasePD, Parkinson's diseaseVitamin D

Identifiers

PMID36072127
PMCPMC9441335
OpenAlexW4293331465

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.