Amino Acid Signatures to Evaluate the Beneficial Effects of Weight Loss

Aims. We investigated the relationship between circulating amino acid levels and obesity; to what extent weight loss followed by weight maintenance can correct amino acid abnormalities; and whether amino acids are related to weight loss. Methods. Amino acids associated with waist circumference (WC)...

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Main Authors: Nina Geidenstam, Martin Magnusson, Anders P. H. Danielsson, Robert E. Gerszten, Thomas J. Wang, Lovisa E. Reinius, Hindrik Mulder, Olle Melander, Martin Ridderstråle
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:International Journal of Endocrinology
Online Access:http://dx.doi.org/10.1155/2017/6490473
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author Nina Geidenstam
Martin Magnusson
Anders P. H. Danielsson
Robert E. Gerszten
Thomas J. Wang
Lovisa E. Reinius
Hindrik Mulder
Olle Melander
Martin Ridderstråle
author_facet Nina Geidenstam
Martin Magnusson
Anders P. H. Danielsson
Robert E. Gerszten
Thomas J. Wang
Lovisa E. Reinius
Hindrik Mulder
Olle Melander
Martin Ridderstråle
author_sort Nina Geidenstam
collection DOAJ
description Aims. We investigated the relationship between circulating amino acid levels and obesity; to what extent weight loss followed by weight maintenance can correct amino acid abnormalities; and whether amino acids are related to weight loss. Methods. Amino acids associated with waist circumference (WC) and BMI were studied in 804 participants from the Malmö Diet and Cancer Cardiovascular Cohort (MDC-CC). Changes in amino acid levels were analyzed after weight loss and weight maintenance in 12 obese subjects and evaluated in a replication cohort (n=83). Results. Out of the eight identified BMI-associated amino acids from the MDC-CC, alanine, isoleucine, tyrosine, phenylalanine, and glutamate decreased after weight loss, while asparagine increased after weight maintenance. These changes were validated in the replication cohort. Scores that were constructed based on obesity-associated amino acids and known risk factors decreased in the ≥10% weight loss group with an associated change in BMI (R2=0.16–0.22, p<0.002), whereas the scores increased in the <10% weight loss group (p<0.0004). Conclusions. Weight loss followed by weight maintenance leads to differential changes in amino acid levels associated with obesity. Treatment modifiable scores based on epidemiological and interventional data may be used to evaluate the potential metabolic benefit of weight loss.
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spelling doaj-art-1cae56bc33c1484b9a54d1e8652449572025-02-03T01:21:42ZengWileyInternational Journal of Endocrinology1687-83371687-83452017-01-01201710.1155/2017/64904736490473Amino Acid Signatures to Evaluate the Beneficial Effects of Weight LossNina Geidenstam0Martin Magnusson1Anders P. H. Danielsson2Robert E. Gerszten3Thomas J. Wang4Lovisa E. Reinius5Hindrik Mulder6Olle Melander7Martin Ridderstråle8Department of Clinical Sciences Malmö, Clinical Obesity, Lund University Diabetes Center, Lund University, Malmö, SwedenDepartment of Cardiology, Skåne University Hospital, Malmö, SwedenDepartment of Clinical Sciences Malmö, Clinical Obesity, Lund University Diabetes Center, Lund University, Malmö, SwedenCardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USADivision of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN, USADepartment of Clinical Sciences Malmö, Clinical Obesity, Lund University Diabetes Center, Lund University, Malmö, SwedenDepartment of Clinical Sciences Malmö, Molecular Metabolism, Lund University Diabetes Center, Lund University, Malmö, SwedenDepartment of Cardiology, Skåne University Hospital, Malmö, SwedenDepartment of Clinical Sciences Malmö, Clinical Obesity, Lund University Diabetes Center, Lund University, Malmö, SwedenAims. We investigated the relationship between circulating amino acid levels and obesity; to what extent weight loss followed by weight maintenance can correct amino acid abnormalities; and whether amino acids are related to weight loss. Methods. Amino acids associated with waist circumference (WC) and BMI were studied in 804 participants from the Malmö Diet and Cancer Cardiovascular Cohort (MDC-CC). Changes in amino acid levels were analyzed after weight loss and weight maintenance in 12 obese subjects and evaluated in a replication cohort (n=83). Results. Out of the eight identified BMI-associated amino acids from the MDC-CC, alanine, isoleucine, tyrosine, phenylalanine, and glutamate decreased after weight loss, while asparagine increased after weight maintenance. These changes were validated in the replication cohort. Scores that were constructed based on obesity-associated amino acids and known risk factors decreased in the ≥10% weight loss group with an associated change in BMI (R2=0.16–0.22, p<0.002), whereas the scores increased in the <10% weight loss group (p<0.0004). Conclusions. Weight loss followed by weight maintenance leads to differential changes in amino acid levels associated with obesity. Treatment modifiable scores based on epidemiological and interventional data may be used to evaluate the potential metabolic benefit of weight loss.http://dx.doi.org/10.1155/2017/6490473
spellingShingle Nina Geidenstam
Martin Magnusson
Anders P. H. Danielsson
Robert E. Gerszten
Thomas J. Wang
Lovisa E. Reinius
Hindrik Mulder
Olle Melander
Martin Ridderstråle
Amino Acid Signatures to Evaluate the Beneficial Effects of Weight Loss
International Journal of Endocrinology
title Amino Acid Signatures to Evaluate the Beneficial Effects of Weight Loss
title_full Amino Acid Signatures to Evaluate the Beneficial Effects of Weight Loss
title_fullStr Amino Acid Signatures to Evaluate the Beneficial Effects of Weight Loss
title_full_unstemmed Amino Acid Signatures to Evaluate the Beneficial Effects of Weight Loss
title_short Amino Acid Signatures to Evaluate the Beneficial Effects of Weight Loss
title_sort amino acid signatures to evaluate the beneficial effects of weight loss
url http://dx.doi.org/10.1155/2017/6490473
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