Journal Highlight: Exploration of candidate biomarkers for human psoriasis based on gas chromatography-mass spectrometry serum metabolomics

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  • Published: Apr 10, 2017
  • Author: spectroscopyNOW
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thumbnail image: Journal Highlight: Exploration of candidate biomarkers for human psoriasis based on gas chromatography-mass spectrometry serum metabolomics

Serum metabolomic profiles of patients with psoriasis have been examined to identify potential biomarkers and help to elucidate the pathogenesis of psoriasis and provide insights into early diagnosis and therapeutic intervention.

Image: NIH

Exploration of candidate biomarkers for human psoriasis based on gas chromatography-mass spectrometry serum metabolomics

British Journal of Dermatology, 2017, 176, 713-722
H. Kang, X. Li, Q. Zhou, C. Quan, F. Xue, J. Zheng and Y. Yu

Abstract: Recent studies have shown that dysregulated metabolic pathways are linked to psoriasis pathogenesis. However, an extensive, unbiased metabolic analysis in patients with psoriasis has not been completely explored. The metabolome represents the end products of proteomics or cellular processes that may be closely associated with the pathogenesis of psoriasis. This study determined the differences in serum metabolomic profiles among patients with psoriasis and healthy controls with the goal of identifying potential biomarkers in patients with psoriasis. Serum metabolomic profiles from 29 subjects (14 patients with psoriasis and 15 sex- and age-matched healthy controls). The serum metabolites were analysed by gas chromatography-mass spectrometry based on a combined full scan and selected-ion monitoring mode. Multivariate statistical analysis of metabolomics data revealed altered serum metabolites between the patients with psoriasis and healthy individuals. Compared with healthy individuals, patients with psoriasis had higher levels of amino acids including asparagine, aspartic acid, isoleucine, phenylalanine, ornithine and proline; higher levels of lactic acid and urea; and lower levels of crotonic acid, azelaic acid, ethanolamine and cholesterol. It appears that the glycolysis pathway and amino acid metabolic activity are increased in patients with psoriasis. These metabolic perturbations may stem from increased demand for protein biosynthesis and keratinocyte hyperproliferation. Our findings may help to elucidate the pathogenesis of psoriasis and provide insights into early diagnosis and therapeutic intervention.

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