Evidence map›Paper›PMID 34811369›Full record

ArticleNPJ Parkinson's disease2021

Glucosylceramide in cerebrospinal fluid of patients with GBA-associated and idiopathic Parkinson's disease enrolled in PPMI.

Young Eun Huh, Hyejung Park, Ming Sum Ruby Chiang, Idil Tuncali, Ganqiang Liu, Joseph J Locascio, Julia Shirvan, Samantha J Hutten, Melissa S Rotunno, Catherine Viel and 4 more

Open access · goldAbstract read
In one paragraph

Article in NPJ Parkinson's disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

30 citing papers in PubMed, 52 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

14 authors at 3 institutions in 3 countries.

Young Eun HuhCenter for Advanced Parkinson Research, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, 02115, USA.
Hyejung ParkNA Pre-Development Sciences, Sanofi, Waltham, MA, 02451, USA.
Ming Sum Ruby ChiangRare and Neurologic Diseases Therapeutic Area, Sanofi, Framingham, MA, 01701, USA.ORCID http://orcid.org/0000-0002-1484-5405
Idil TuncaliCenter for Advanced Parkinson Research, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0001-7437-285X
Ganqiang LiuCenter for Advanced Parkinson Research, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0002-1921-9542
Joseph J LocascioCenter for Advanced Parkinson Research, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, 02115, USA.
Julia ShirvanCenter for Advanced Parkinson Research, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, 02115, USA.
Samantha J HuttenThe Michael J. Fox Foundation for Parkinson's Research, New York, NY, 10163, USA.
Melissa S RotunnoRare and Neurologic Diseases Therapeutic Area, Sanofi, Framingham, MA, 01701, USA.
Catherine VielRare and Neurologic Diseases Therapeutic Area, Sanofi, Framingham, MA, 01701, USA.
Lamya S ShihabuddinRare and Neurologic Diseases Therapeutic Area, Sanofi, Framingham, MA, 01701, USA.
Bing WangNA Pre-Development Sciences, Sanofi, Waltham, MA, 02451, USA.
Sergio Pablo Sardi *Rare and Neurologic Diseases Therapeutic Area, Sanofi, Framingham, MA, 01701, USA.
Clemens R Scherzer *Center for Advanced Parkinson Research, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, 02115, USA. cscherzer@rics.bwh.harvard.edu.ORCID http://orcid.org/0000-0002-0567-9193
Sanofi (United States) · USBrigham and Women's Hospital · USMichael J. Fox Foundation · US

Funding

Integrative Multi-Omic Discovery of Proximal Mechanisms Driving Age-Dependent NeurodegenerationRF1AG057331 · NIA · BRIGHAM AND WOMEN'S HOSPITAL · PI FEANY, MEL B, FRAENKEL, ERNEST · 2017 to 2017
$4.8M
GBA pathway markers for Lewy body dementiasU01NS100603 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI SCHERZER, CLEMENS R · 2016 to 2020
$2.9M
Biomarkers for early intervention in Parkinson diseaseU01NS082157 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI SCHERZER, CLEMENS R · 2012 to 2016
$2.5M
Parkinson Disease: Predicting the FutureU01NS095736 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI SCHERZER, CLEMENS R · 2016 to 2018
$2.1M
NIA NIH HHS RF1 AG057331NINDS NIH HHS U01 NS082157NINDS NIH HHS U01 NS095736NINDS NIH HHS U01 NS100603
6 · The paper itself

Abstract

Protein-coding variants in the GBA gene modulate susceptibility and progression in ~10% of patients with Parkinson's disease (PD). GBA encodes the β-glucocerebrosidase enzyme that hydrolyzes glucosylceramide. We hypothesized that GBA mutations will lead to glucosylceramide accumulation in cerebrospinal fluid (CSF). Glucosylceramide, ceramide, sphingomyelin, and lactosylceramide levels were measured by liquid chromatography-tandem mass spectrometry in CSF of 411 participants from the Parkinson's Progression Markers Initiative (PPMI) cohort, including early stage, de novo PD patients with abnormal dopamine transporter neuroimaging and healthy controls. Forty-four PD patients carried protein-coding GBA variants (GBA-PD) and 227 carried wild-type alleles (idiopathic PD). The glucosylceramide fraction was increased (P = 0.0001), and the sphingomyelin fraction (a downstream metabolite) was reduced (P = 0.0001) in CSF of GBA-PD patients compared to healthy controls. The ceramide fraction was unchanged, and lactosylceramide was below detection limits. We then used the ratio of glucosylceramide to sphingomyelin (the GlcCer/SM ratio) to explore whether these two sphingolipid fractions altered in GBA-PD were useful for stratifying idiopathic PD patients. Idiopathic PD patients in the top quartile of GlcCer/SM ratios at baseline showed a more rapid decline in Montreal Cognitive Assessment scores during longitudinal follow-up compared to those in the lowest quartile with a P-value of 0.036. The GlcCer/SM ratio was negatively associated with α-synuclein levels in CSF of PD patients. This study highlights glucosylceramide as a pathway biomarker for GBA-PD patients and the GlcCer/SM ratio as a potential stratification tool for clinical trials of idiopathic PD patients. Our sphingolipids data together with the clinical, imaging, omics, and genetic characterization of PPMI will contribute a useful resource for multi-modal biomarkers development.

Identifiers

PMID34811369
PMCPMC8608962
OpenAlexW3216778464

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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.