Research output: Contribution to journal › Article › peer-review
Symmetric dimethylguanidino valeric acid (SDGV), a novel single biomarker of hepatic steatosis. / Rodionov, R.N.; Koay, Y.C.; Jarzebska, N.; Markov, A.G.
In: iScience, Vol. 27, No. 12, 111366, 20.12.2024.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Symmetric dimethylguanidino valeric acid (SDGV), a novel single biomarker of hepatic steatosis
AU - Rodionov, R.N.
AU - Koay, Y.C.
AU - Jarzebska, N.
AU - Markov, A.G.
N1 - Rodionov, R.N., Jarzebska, N., Koay, Y.C., Li, M., Kuhn, M., Bornstein, S.R., Martens-Lobenhoffer, J., Eslam, M., Chen, F.W., Rubets, E., Markov, A.G., Weiss, N., Birkenfeld, A., Schwarz, P., Bode-Böger, S.M., Perakakis, N., O’Sullivan, J.F., George, J., Symmetric dimethylguanidino valeric acid (SDGV), a novel single biomarker of hepatic steatosis, ISCIENCE (2024), doi: https://doi.org/10.1016/j.isci.2024.111366
PY - 2024/12/20
Y1 - 2024/12/20
N2 - There is an unmet need for a biomarker of liver fat. We identified dimethylguanidino valeric acid (DMGV) as a circulating biomarker of liver fat. Here, we assess its two isoforms - symmetric (SDGV) and asymmetric (ADGV) - as biomarkers of steatosis. We determined plasma ADGV, SDGV, related metabolites, alanine aminotransferase (ALT), and the fatty liver index (FLI) in two cohorts and compared their diagnostic performance for liver fat detection. SDGV was the strongest predictor of moderate to severe steatosis. Changes in SDGV correlated with changes in liver fat % in a prospective cohort. In a murine model of fatty liver disease, protein levels and activity of alanine:glyoxylate aminotransferase 2 (AGXT2), which produces SDGV, were increased and coincided with elevation of SDGV concentrations. SDGV is a biomarker of liver fat and its increase in hepatic steatosis results from the upregulation of AGXT2 activity.
AB - There is an unmet need for a biomarker of liver fat. We identified dimethylguanidino valeric acid (DMGV) as a circulating biomarker of liver fat. Here, we assess its two isoforms - symmetric (SDGV) and asymmetric (ADGV) - as biomarkers of steatosis. We determined plasma ADGV, SDGV, related metabolites, alanine aminotransferase (ALT), and the fatty liver index (FLI) in two cohorts and compared their diagnostic performance for liver fat detection. SDGV was the strongest predictor of moderate to severe steatosis. Changes in SDGV correlated with changes in liver fat % in a prospective cohort. In a murine model of fatty liver disease, protein levels and activity of alanine:glyoxylate aminotransferase 2 (AGXT2), which produces SDGV, were increased and coincided with elevation of SDGV concentrations. SDGV is a biomarker of liver fat and its increase in hepatic steatosis results from the upregulation of AGXT2 activity.
KW - Clinical finding
KW - Health sciences
KW - Physiological state
UR - https://www.mendeley.com/catalogue/6a3c76a7-b43e-3d90-9dd5-d830f4c4306b/
U2 - 10.1016/j.isci.2024.111366
DO - 10.1016/j.isci.2024.111366
M3 - Article
C2 - 39660051
VL - 27
JO - iScience
JF - iScience
SN - 2589-0042
IS - 12
M1 - 111366
ER -
ID: 127186825