Diabetes and frailty are highly prevalent conditions that impact the health status of older adults. Perturbations in protein/amino acid metabolism are associated with both functional impairment and type 2 diabetes mellitus (T2DM). In the present study, we compared the concentrations of a panel of circulating 37 amino acids and derivatives between frail/pre-frail older adults with T2DM and robust non-diabetic controls. Sixty-six functionally impaired older persons aged 70+ with T2DM and 30 age and sex-matched controls were included in the analysis. We applied a partial least squares-discriminant analysis (PLS-DA)-based analytical strategy to characterize the metabotype of study participants. The optimal complexity of the PLS-DA model was found to be two latent variables. The proportion of correct classification was 94.1 ± 1.9% for frail/pre-frail persons with T2DM and 100% for control participants. Functionally impaired older persons with T2DM showed higher levels of 3-methyl histidine, alanine, arginine, glutamic acid, ethanolamine sarcosine, and tryptophan. Control participants had higher levels of ornithine and taurine. These findings indicate that a specific profile of amino acids and derivatives characterizes pre-frail/frail older persons with T2DM. The dissection of these pathways may provide novel insights into the metabolic perturbations involved in the disabling cascade in older persons with T2DM.

Identification of a circulating amino acid signature in frail older persons with type 2 diabetes mellitus: results from the metabofrail study / Calvani, Riccardo; Rodriguez-Manas, Leocadio; Picca, Anna; Marini, Federico; Biancolillo, Alessandra; Laosa, Olga; Pedraza, Laura; Gervasoni, Jacopo; Primiano, Aniello; Conta, Giorgia; Bourdel-Marchasson, Isabelle; Regueme, Sophie C.; Bernabei, Roberto; Marzetti, Emanuele; Sinclair, Alan J.; Gambassi, Giovanni. - In: NUTRIENTS. - ISSN 2072-6643. - 12:1(2020). [10.3390/nu12010199]

Identification of a circulating amino acid signature in frail older persons with type 2 diabetes mellitus: results from the metabofrail study

Marini, Federico;Biancolillo, Alessandra;Conta, Giorgia;
2020

Abstract

Diabetes and frailty are highly prevalent conditions that impact the health status of older adults. Perturbations in protein/amino acid metabolism are associated with both functional impairment and type 2 diabetes mellitus (T2DM). In the present study, we compared the concentrations of a panel of circulating 37 amino acids and derivatives between frail/pre-frail older adults with T2DM and robust non-diabetic controls. Sixty-six functionally impaired older persons aged 70+ with T2DM and 30 age and sex-matched controls were included in the analysis. We applied a partial least squares-discriminant analysis (PLS-DA)-based analytical strategy to characterize the metabotype of study participants. The optimal complexity of the PLS-DA model was found to be two latent variables. The proportion of correct classification was 94.1 ± 1.9% for frail/pre-frail persons with T2DM and 100% for control participants. Functionally impaired older persons with T2DM showed higher levels of 3-methyl histidine, alanine, arginine, glutamic acid, ethanolamine sarcosine, and tryptophan. Control participants had higher levels of ornithine and taurine. These findings indicate that a specific profile of amino acids and derivatives characterizes pre-frail/frail older persons with T2DM. The dissection of these pathways may provide novel insights into the metabolic perturbations involved in the disabling cascade in older persons with T2DM.
2020
aging; metabolomics; systems biology; personalized medicine; metabolism; frailty; sarcopenia; muscle wasting; precision medicine; metabolic profiling
01 Pubblicazione su rivista::01a Articolo in rivista
Identification of a circulating amino acid signature in frail older persons with type 2 diabetes mellitus: results from the metabofrail study / Calvani, Riccardo; Rodriguez-Manas, Leocadio; Picca, Anna; Marini, Federico; Biancolillo, Alessandra; Laosa, Olga; Pedraza, Laura; Gervasoni, Jacopo; Primiano, Aniello; Conta, Giorgia; Bourdel-Marchasson, Isabelle; Regueme, Sophie C.; Bernabei, Roberto; Marzetti, Emanuele; Sinclair, Alan J.; Gambassi, Giovanni. - In: NUTRIENTS. - ISSN 2072-6643. - 12:1(2020). [10.3390/nu12010199]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1356559
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