Metabolic profiling of psoriasis vulgaris and palmoplantar pustulosis

Psoriasis is a chronic inflammatory skin disorder with various subtypes, including psoriasis vulgaris (PV) and palmoplantar pustulosis (PPP). Metabolomics studies have provided insights into psoriasis pathogenesis. However, research on metabolomic alterations in PV and PPP patients is limited. We ai...

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Bibliographic Details
Published in:Experimental dermatology 2024-08, Vol.33 (8), p.e15159-n/a
Main Authors: Lee, Yujin, Kim, Seong Rae, Ban, Mu Seong, Lee, Howard, Cho, Joo‐Youn, Jo, Seong Jin
Format: Article
Language:English
Subjects:
Acetyl-L-carnitine
Adult
Aged
Amino acids
Amino Acids - blood
Amino Acids - metabolism
Aspartic acid
Carnitine - analogs & derivatives
Carnitine - blood
Carnitine - metabolism
Case-Control Studies
Comorbidity
Female
Humans
Male
Metabolism
Metabolites
Metabolome
Metabolomics
Middle Aged
Ornithine
Psoriasis
Psoriasis - blood
Psoriasis - metabolism
Psoriasis vulgaris
Pustulosis
Retrospective Studies
Sarcosine
Sarcosine - blood
Severity of Illness Index
Skin diseases
Spermine
Taurine
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Summary:Psoriasis is a chronic inflammatory skin disorder with various subtypes, including psoriasis vulgaris (PV) and palmoplantar pustulosis (PPP). Metabolomics studies have provided insights into psoriasis pathogenesis. However, research on metabolomic alterations in PV and PPP patients is limited. We aimed to explore and compare the metabolic profiles of patients with PV and PPP to those of healthy volunteers (HVs). A single‐centre retrospective cohort was constructed, comprising Korean patients with psoriasis and HVs matched by age and sex. Clinical information including demographics, disease severity, and comorbidities were collected. Plasma samples were subjected to targeted metabolic analysis using an Absolute IDQ®p180 kit, which quantified 188 metabolites, including amino acids and carnitines. Statistical significance was assessed using an independent t‐test and chi‐square test, with p‐values adjusted by the Benjamini–Hochberg procedure. Pathway analyses were employed to gain a comprehensive understanding of the metabolite profile. This study included 93 patients (73 PV and 20 PPP) and an equal number of HVs. PV patients showed increased levels of sarcosine, serotonin, propionylcarnitine, proline, aspartic acid, tyrosine, taurine, spermine and ornithine, but exhibited a decreased level of acetylcarnitine than matched HVs. Notably, sarcosine levels were significantly elevated in PPP patients. Furthermore, the sarcosine/glycine ratio was significantly higher in both PV and PPP patients than in HVs. Pathway analysis showed significant increases in metabolites involved in amino acid metabolism and the urea cycle in PV patients. In conclusion, this study demonstrated distinct metabolic profiles in PV and PPP patients compared to HVs, suggesting sarcosine as a potential biomarker for psoriasis.
ISSN:0906-6705
1600-0625
1600-0625
DOI:10.1111/exd.15159