Application of Sebum Lipidomics to Biomarkers Discovery in Neurodegenerative Diseases.
Alzheimer’s disease
Parkinson’s disease
branched chain fatty acids
cholesterol
cognitive impairment
fatty acidomics
sebaceous gland
squalene
triglycerides
wax esters
Journal
Metabolites
ISSN: 2218-1989
Titre abrégé: Metabolites
Pays: Switzerland
ID NLM: 101578790
Informations de publication
Date de publication:
29 Nov 2021
29 Nov 2021
Historique:
received:
14
10
2021
revised:
16
11
2021
accepted:
24
11
2021
entrez:
23
12
2021
pubmed:
24
12
2021
medline:
24
12
2021
Statut:
epublish
Résumé
Lipidomics is strategic in the discovery of biomarkers of neurodegenerative diseases (NDDs). The skin surface lipidome bears the potential to provide biomarker candidates in the detection of pathological processes occurring in distal organs. We investigated the sebum composition to search diagnostic and, possibly, prognostic, biomarkers of Alzheimer's disease (AD) and Parkinson's disease (PD). The observational study included 64 subjects: 20 characterized as "probable AD with documented decline", 20 as "clinically established PD", and 24 healthy subjects (HS) of comparable age. The analysis of sebum by GCMS and TLC retrieved the amounts (µg) of 41 free fatty acids (FFAs), 7 fatty alcohols (FOHs), vitamin E, cholesterol, squalene, and total triglycerides (TGs) and wax esters (WEs). Distributions of sebum lipids in NDDs and healthy conditions were investigated with multivariate ANOVA-simultaneous component analysis (ASCA). The deranged sebum composition associated with the PD group showed incretion of most composing lipids compared to HS, whereas only two lipid species (vitamin E and FOH14:0) were discriminant of AD samples and presented lower levels than HS sebum. Thus, sebum lipid biosynthetic pathways are differently affected in PD and AD. The characteristic sebum bio-signatures detected support the value of sebum lipidomics in the biomarkers search in NDDs.
Identifiants
pubmed: 34940576
pii: metabo11120819
doi: 10.3390/metabo11120819
pmc: PMC8708591
pii:
doi:
Types de publication
Journal Article
Langues
eng
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