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. 2019 Aug 14;14(8):e0219756.
doi: 10.1371/journal.pone.0219756. eCollection 2019.

The relationship between plasma amino acids and circulating albumin and haemoglobin in postabsorptive stroke patients

Roberto Aquilani  1 , Roberto Maestri  2 , Mirella Boselli  3 , Maria Pia Achilli  3 , Nadia Arrigoni  3 , Mariella Bruni  4 , Maurizia Dossena  1 , Manuela Verri  1 , Daniela Buonocore  1 , Evasio Pasini  5 , Annalisa Barbieri  6 , Federica Boschi  6
Affiliations

The relationship between plasma amino acids and circulating albumin and haemoglobin in postabsorptive stroke patients

Roberto Aquilani et al. PLoS One. .

Abstract

Background: This retrospective study had two main aims: (1) to document possible correlations between plasma Amino Acids (AAs) and circulating Albumin (Alb) and Haemoglobin (Hb); and (2) to identify which AAs were predictors of Alb and Hb.

Methods: The study considered 125 stroke subjects (ST) (61.6% males; 65.6 +/- 14.9 years) who met the eligibility criteria (absence of co morbidities associated with altered plasma AAs and presence of plasma AAs determined after overnight fasting). Fifteen matched healthy subjects with measured plasma AAs served as controls.

Results: The best correlations of Alb were with tryptophan (Trp) and histidine (His) (r = + 0.53; p < 0.0001), and those of Hb were with histidine (r = +0.47) and Essential AAs (r = +0.47) (both p<0.0001). In multivariate analysis, Trp (p< 0.0001) and His (p = 0.01) were shown to be the best positive predictors of Alb, whereas glutamine (p = 0.006) was the best positive predictor of Hb.

Conclusions: The study shows that the majority of plasma AAs were positively correlated with Alb and Hb. The best predictors of circulating Alb and Hb were the levels of tryptophan and glutamine, respectively.

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Conflict of interest statement

The author Roberto Aquilani is a scientific consultant at Professional Dietetics (Milano, Italy). This company had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials. The other authors declare no conflict of interest.

Figures

Fig 1
Fig 1
Correlations between plasma tryptophan (panel A), plasma histidine (panel B) and serum albumin.
Fig 2
Fig 2
Correlations between plasma histidine (panel A), plasma essential amino acids (panel B) and plasma haemoglobin.
See this image and copyright information in PMC

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