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Trischitta, V.* ; Antonucci, A.* ; Adamski, J. ; Prehn, C. ; Menzaghi, C.* ; Marucci, A.* ; Di Paola, R.*

GALNT2 expression is associated with glucose control and serum metabolites in patients with type 2 diabetes.

Acta Diabetol. 61, 1007-1013 (2024)
Publ. Version/Full Text DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
Aims Aim of this study was to investigate in type 2 diabetes whether expression level of GALNT2, a positive modulator of insulin sensitivity, is associated with a metabolic signature. Methods Five different metabolite families, including acylcarnitines, aminoacids, biogenic amines, phospholipids and sphingolipids were investigated in fasting serum of 70 patients with type 2 diabetes, by targeted metabolomics. GALNT2 expression levels were measured in peripheral white blood cells by RT-PCR. The association between GALNT2 expression and serum metabolites was assessed using false discovery rate followed by stepwise selection and, finally, multivariate model including several clinical parameters as confounders. The association between GALNT2 expression and the same clinical parameters was also investigated. Results GALNT2 expression was independently correlated with HbA1c levels (P value = 0.0052), a finding that is the likely consequence of the role of GALNT2 on insulin sensitivity. GALNT2 expression was also independently associated with serum levels of the aminoacid glycine (P value = 0.014) and two biogenic amines phenylethylamine (P value = 0.0065) and taurine (P value = 0.0011). The association of GALNT2 expression with HbA1c was not mediated by these three metabolites. Conclusions Our data indicate that in type 2 diabetes the expression of GALNT2 is associated with several serum metabolites. This association needs to be further investigated to understand in depth its role in mediating the effect of GALNT2 on insulin sensitivity, glucose control and other clinical features in people with diabetes.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords GALNT2; Glycine; Phenylethylamine; Taurine; Insulin resistance metabolic abnormalities; Metabolic signature; Membrane Glycoprotein Pc-1; Insulin-resistance; Taurine; Loci; Inflammation; Inhibition; Modulator; Variants; Obesity; Humans
ISSN (print) / ISBN 0940-5429
e-ISSN 1432-5233
Quellenangaben Volume: 61, Issue: 8, Pages: 1007-1013 Article Number: , Supplement: ,
Publisher Springer
Publishing Place Milan
Non-patent literature Publications
Reviewing status Peer reviewed
Grants Italian Ministry of Health