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Age-dependent Changes in Plasma Amino Acids Contribute to Alterations in Glycoxidation Products

BACKGROUND: Glycative stress is involved in the pathogenesis of various degenerative disorders. This study sought to determine the effect of age-related changes in amino acids on serum levels of pentosidine and carboxymethyl-lysine (CML) in healthy individuals. METHODS: The subjects were 78 healthy...

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Autores principales: Foroumandi, Elaheh, Alizadeh, Mohammad, Kheirouri, Sorayya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sciendo 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6298480/
https://www.ncbi.nlm.nih.gov/pubmed/30584401
http://dx.doi.org/10.1515/jomb-2017-0065
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author Foroumandi, Elaheh
Alizadeh, Mohammad
Kheirouri, Sorayya
author_facet Foroumandi, Elaheh
Alizadeh, Mohammad
Kheirouri, Sorayya
author_sort Foroumandi, Elaheh
collection PubMed
description BACKGROUND: Glycative stress is involved in the pathogenesis of various degenerative disorders. This study sought to determine the effect of age-related changes in amino acids on serum levels of pentosidine and carboxymethyl-lysine (CML) in healthy individuals. METHODS: The subjects were 78 healthy individuals categorized into three age groups. The ages of the groups were as follows: 26 young adults (20–30 y, 25.2±3.03), 26 middle-aged adults (35–50 y, 39.46±6.97) and 26 older adults (60 y or older, 69.80±10.01). Serum levels of pentosidine and CML were measured by ELISA and levels of plasma amino acids were determined using HPLC. RESULTS: Serum levels of pentosidine and CML in the youngest group were higher than in the oldest group (p=0.026, 0.029, respectively). There was a positive correlation between the serum levels of pentosidine and CML and the levels of plasmaTyrosine (p=0.032, r=0.211 and p=0.037, r=0.224), Valine (p=0.037, r=0.224 and p=0.021, r=0.247) and Isoleucine (p=0.041, r=0.203 and p=0.021, r=0.247), respectively. Serum levels of pentosidine and CML may be modulated by the plasma levels of selected amino acids. CONCLUSIONS: Better understanding of the role of these selective amino acids might provide new perception of how glycation pathways may be altered and pave the way for new therapeutic principles.
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spelling pubmed-62984802018-12-24 Age-dependent Changes in Plasma Amino Acids Contribute to Alterations in Glycoxidation Products Foroumandi, Elaheh Alizadeh, Mohammad Kheirouri, Sorayya J Med Biochem Original Paper BACKGROUND: Glycative stress is involved in the pathogenesis of various degenerative disorders. This study sought to determine the effect of age-related changes in amino acids on serum levels of pentosidine and carboxymethyl-lysine (CML) in healthy individuals. METHODS: The subjects were 78 healthy individuals categorized into three age groups. The ages of the groups were as follows: 26 young adults (20–30 y, 25.2±3.03), 26 middle-aged adults (35–50 y, 39.46±6.97) and 26 older adults (60 y or older, 69.80±10.01). Serum levels of pentosidine and CML were measured by ELISA and levels of plasma amino acids were determined using HPLC. RESULTS: Serum levels of pentosidine and CML in the youngest group were higher than in the oldest group (p=0.026, 0.029, respectively). There was a positive correlation between the serum levels of pentosidine and CML and the levels of plasmaTyrosine (p=0.032, r=0.211 and p=0.037, r=0.224), Valine (p=0.037, r=0.224 and p=0.021, r=0.247) and Isoleucine (p=0.041, r=0.203 and p=0.021, r=0.247), respectively. Serum levels of pentosidine and CML may be modulated by the plasma levels of selected amino acids. CONCLUSIONS: Better understanding of the role of these selective amino acids might provide new perception of how glycation pathways may be altered and pave the way for new therapeutic principles. Sciendo 2018-12-01 /pmc/articles/PMC6298480/ /pubmed/30584401 http://dx.doi.org/10.1515/jomb-2017-0065 Text en © 2018 Elaheh Foroumandi, Mohammad Alizadeh, Sorayya Kheirouri published by Sciendo http://creativecommons.org/licenses/by-nc-nd/3.0 This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
spellingShingle Original Paper
Foroumandi, Elaheh
Alizadeh, Mohammad
Kheirouri, Sorayya
Age-dependent Changes in Plasma Amino Acids Contribute to Alterations in Glycoxidation Products
title Age-dependent Changes in Plasma Amino Acids Contribute to Alterations in Glycoxidation Products
title_full Age-dependent Changes in Plasma Amino Acids Contribute to Alterations in Glycoxidation Products
title_fullStr Age-dependent Changes in Plasma Amino Acids Contribute to Alterations in Glycoxidation Products
title_full_unstemmed Age-dependent Changes in Plasma Amino Acids Contribute to Alterations in Glycoxidation Products
title_short Age-dependent Changes in Plasma Amino Acids Contribute to Alterations in Glycoxidation Products
title_sort age-dependent changes in plasma amino acids contribute to alterations in glycoxidation products
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6298480/
https://www.ncbi.nlm.nih.gov/pubmed/30584401
http://dx.doi.org/10.1515/jomb-2017-0065
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