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Cross-sectional relationships between general and central adiposity and plasma amino acids in Chinese adults

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Abstract

Adiposity is an important determinant of blood metabolites, but little is known about the variations of blood amino acids according to general and central adiposity status among Chinese population. This study included 187 females and 322 males who were cancer-free subjects randomly selected from two cohorts in Shanghai, China. Participants’ plasma concentrations of amino acids were measured by ultra-performance liquid chromatography coupled to tandem mass spectrometry. Linear regression models were used to examine the cross-sectional correlations between general and central adiposity and amino acid levels. A total of 35 amino acids in plasma were measured in this study. In females, alanine, aspartic acid and pyroglutamic acid were positively correlated with general adiposity. In males, glutamic acid, aspartic acid, valine and pyroglutamic acid showed positive correlations, and glutamine, serine and glycine showed negative correlations with both general and central adiposity; phenylalanine, isoleucine and leucine were positively correlated and N-phenylacetylglutamine was negatively correlated with general adiposity; asparagine was negatively correlated with central adiposity. In summary, general adiposity and central adiposity were correlated with the concentrations of specific plasma amino acids among cancer-free female and male adults in China. Adiposity–metabolite characteristics and relationships should be considered when studying blood biomarkers for adiposity-related health outcomes.

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Data availability

Data will be available upon request pending application and approval by the scientific committee of the relevant institutes.

Abbreviations

BCAA:

Branched-chain amino acid

BMI:

Body mass index

CI:

Confidence interval

CV:

Coefficients of variation

FFQ:

Food-frequency questionnaires

MET:

Standard metabolic equivalents

PAQ:

Physical activity questionnaires

QC:

Quality control

WC:

Waist circumference

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Acknowledgements

We thank all participants and staff from the Shanghai Men’s and Women’s Health Studies for their contribution to this research.

Funding

This work was supported by the National Key Project of Research and Development Program of China [2021YFC2500404]; the parent cohorts were supported by a grant from the US National Institutes of Health [UM1 CA182910, UM1 CA173640]. All funders had no role in the design, analysis or writing of this article.

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Contributions

Qiu-Ming Shen and Yong-Bing Xiang wrote the main manuscript text. Yong-Bing Xiang designed the research and obtained funding. Qiu-Ming Shen, Yu-Ting Tan, Jing Wang, Hong-Lan Li and Yong-Bing Xiang conducted research. Qiu-Ming Shen and Yong-Bing Xiang analyzed the data and interpreted the results. Yu-Ting Tan, Jing Wang, Jie Fang, Da-Ke Liu, Hong-Lan Li and Yong-Bing Xiang provided the database. Yong-Bing Xiang had primary responsibility for the final content. All authors read, reviewed and approved the final manuscript.

Corresponding author

Correspondence to Yong-Bing Xiang.

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Conflict of interest

The authors have no competing interests to declare that are relevant to the content of this article.

Ethical approval

Approval for the study was granted by the Renji Hospital Ethics Committee of Shanghai Jiao Tong University School of Medicine (No. KY2021-029). The study was conducted in accordance with the Declaration of Helsinki (as revised in 2013). Written informed consent was obtained from all study participants.

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Handling editor: S. Broeer.

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726_2023_3258_MOESM1_ESM.docx

Supplemental Table 1 Adjusted partial regression coefficients and 95% CIs of general adiposity and central adiposity for amino acids in females. Supplemental Table 2 Adjusted partial regression coefficients and 95% CIs of general adiposity and central adiposity for amino acids in males. Supplemental Table 3 Adjusted partial regression coefficients and 95% CIs of a 5-unit increase in BMI and 10-unit increase in WC for amino acids in females. Supplemental Table 4 Adjusted partial regression coefficients and 95% CIs of a 5-unit increase in BMI and 10-unit increase in WC for amino acids in males (DOCX 68 KB)

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Shen, QM., Tan, YT., Wang, J. et al. Cross-sectional relationships between general and central adiposity and plasma amino acids in Chinese adults. Amino Acids 55, 651–663 (2023). https://doi.org/10.1007/s00726-023-03258-5

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  • DOI: https://doi.org/10.1007/s00726-023-03258-5

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