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SHR Neuro Cancer Cardio Lipid Metab Microb
Enko, D; Moro, T; Holasek, S; Baranyi, A; Schnedl, WJ; Zelzer, S; Mangge, H; Herrmann, M; Meinitzer, A.
Branched-chain amino acids are linked with iron metabolism.
Ann Transl Med. 2020; 8(23):1569-1569
Doi: 10.21037/atm-20-624a
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- Leading authors Med Uni Graz
- Enko Dietmar
- Co-authors Med Uni Graz
- Baranyi Andreas
- Herrmann Markus
- Holasek Sandra Johanna
- Mangge Harald
- Meinitzer Andreas
- Schnedl Wolfgang
- Zelzer Sieglinde
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- Abstract:
- The branched-chain amino acids (BCAAs) valine, leucine and isoleucine are reported to influence erythropoiesis and the human iron status. Large study cohorts encompassing biomarkers of iron metabolism and BCAAs are still lacking. We investigated potential interactions between blood concentrations of all three BCAAs valine, leucine and isoleucine and biomarkers of iron metabolism [i.e., hemoglobin (Hb), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), iron, transferrin, ferritin, transferrin saturation, soluble transferrin receptor (sTfR)] in 430 outpatients referred for a medical health check-up. Linear regression models were performed to assess possible associations between variables. All three BCAAs were positively correlated with Hb, ferritin and the sTfR (r-values: 0.145-0.382; P values: <0.001-0.003). The strongest correlation was observed between valine and Hb (r=0.382; P value <0.001). Linear regression models showed a statistically significant influence of all three BCAAs on Hb and ferritin (β-coefficients: 0.173-0.351; all P values: <0.001). Seventeen patients with anemia (4%) were found with significantly lower serum BCAA concentrations compared to 413 non-anemic individuals (P<0.05). These data indicate a pathophysiological link between the three BCAAs valine, leucine and isoleucine and the human iron indicators Hb and ferritin. Further studies are needed to clarify the exact causal mechanisms of these findings. 2020 Annals of Translational Medicine. All rights reserved.
- Find related publications in this database (Keywords)
- Anemia
- branched-chain amino acids (BCAAs)
- iron metabolism