Effect of carnosine supplementation on the plasma lipidome in overweight and obese adults: A pilot randomised controlled trial

Estifanos Baye, Jozef Ukropec, Maximilian Pj De Courten, Silvia Vallova, Patrik Krumpolec, Timea Kurdiova, Giancarlo Aldini, Barbara Ukropcova, Barbora De Courten

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Carnosine has been shown to reduce oxidation and glycation of low density lipoprotein hence improving dyslipidaemia in rodents. The effect of carnosine on human plasma lipidome has thus far not been investigated. We aimed to determine whether carnosine supplementation improves the plasma lipidome in overweight and obese individuals. Lipid analysis was performed by liquid chromatography mass spectrometry in 24 overweight and obese adults: 13 were randomly assigned to 2 g carnosine daily and 11 to placebo, and treated for 12 weeks. Carnosine supplementation maintained trihexosylceramide (0.01 ± 0.19 vs-0.28 ± 0.34 nmol/ml, p = 0.04), phosphatidylcholine (77 ± 167 vs-81 ± 196 nmol/ml, p = 0.01) and free cholesterol (20 ± 80 vs-69 ± 80 nmol/ml, p = 0.006) levels compared to placebo. Trihexosylceramide was inversely related with fasting insulin (r =-0.6, p = 0.002), insulin resistance (r =-0.6, p = 0.003), insulin secretion (r =-0.4, p = 0.05) and serum carnosinase 1 activity (r =-0.3, p = 0.05). Both phosphatidylcholine and free cholesterol did not correlate with any cardiometabolic parameters. Our data suggest that carnosine may have beneficial effects on the plasma lipidome. Future larger clinical trials are needed to confirm this.

Original languageEnglish
Article number17458
JournalScientific Reports
Volume7
Issue number1
DOIs
Publication statusPublished - 1 Dec 2017

Cite this

Baye, Estifanos ; Ukropec, Jozef ; De Courten, Maximilian Pj ; Vallova, Silvia ; Krumpolec, Patrik ; Kurdiova, Timea ; Aldini, Giancarlo ; Ukropcova, Barbara ; De Courten, Barbora. / Effect of carnosine supplementation on the plasma lipidome in overweight and obese adults : A pilot randomised controlled trial. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
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Effect of carnosine supplementation on the plasma lipidome in overweight and obese adults : A pilot randomised controlled trial. / Baye, Estifanos; Ukropec, Jozef; De Courten, Maximilian Pj; Vallova, Silvia; Krumpolec, Patrik; Kurdiova, Timea; Aldini, Giancarlo; Ukropcova, Barbara; De Courten, Barbora.

In: Scientific Reports, Vol. 7, No. 1, 17458, 01.12.2017.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Effect of carnosine supplementation on the plasma lipidome in overweight and obese adults

T2 - A pilot randomised controlled trial

AU - Baye, Estifanos

AU - Ukropec, Jozef

AU - De Courten, Maximilian Pj

AU - Vallova, Silvia

AU - Krumpolec, Patrik

AU - Kurdiova, Timea

AU - Aldini, Giancarlo

AU - Ukropcova, Barbara

AU - De Courten, Barbora

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N2 - Carnosine has been shown to reduce oxidation and glycation of low density lipoprotein hence improving dyslipidaemia in rodents. The effect of carnosine on human plasma lipidome has thus far not been investigated. We aimed to determine whether carnosine supplementation improves the plasma lipidome in overweight and obese individuals. Lipid analysis was performed by liquid chromatography mass spectrometry in 24 overweight and obese adults: 13 were randomly assigned to 2 g carnosine daily and 11 to placebo, and treated for 12 weeks. Carnosine supplementation maintained trihexosylceramide (0.01 ± 0.19 vs-0.28 ± 0.34 nmol/ml, p = 0.04), phosphatidylcholine (77 ± 167 vs-81 ± 196 nmol/ml, p = 0.01) and free cholesterol (20 ± 80 vs-69 ± 80 nmol/ml, p = 0.006) levels compared to placebo. Trihexosylceramide was inversely related with fasting insulin (r =-0.6, p = 0.002), insulin resistance (r =-0.6, p = 0.003), insulin secretion (r =-0.4, p = 0.05) and serum carnosinase 1 activity (r =-0.3, p = 0.05). Both phosphatidylcholine and free cholesterol did not correlate with any cardiometabolic parameters. Our data suggest that carnosine may have beneficial effects on the plasma lipidome. Future larger clinical trials are needed to confirm this.

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