Polymorphism rs1761667 in the CD36 Gene Is Associated to Changes in Fatty Acid Metabolism and Circulating Endocannabinoid Levels Distinctively in Normal Weight and Obese Subjects

The multifunctional CD36 scavenger receptor facilitates fatty acid (FA) uptake and oxidation and it has been involved in the pathophysiology related to dysfunctional FA metabolism. The common variant in the CD36 gene, rs1761667 (A/G), whose allele A is characterized by a reduced protein expression,...

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Main Authors: Melania Melis, Gianfranca Carta, Stefano Pintus, Paolo Pintus, Carla A. Piras, Elisabetta Murru, Claudia Manca, Vincenzo Di Marzo, Sebastiano Banni, Iole Tomassini Barbarossa
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-12-01
Series:Frontiers in Physiology
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Online Access:http://journal.frontiersin.org/article/10.3389/fphys.2017.01006/full
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author Melania Melis
Gianfranca Carta
Stefano Pintus
Paolo Pintus
Carla A. Piras
Elisabetta Murru
Claudia Manca
Vincenzo Di Marzo
Sebastiano Banni
Iole Tomassini Barbarossa
author_facet Melania Melis
Gianfranca Carta
Stefano Pintus
Paolo Pintus
Carla A. Piras
Elisabetta Murru
Claudia Manca
Vincenzo Di Marzo
Sebastiano Banni
Iole Tomassini Barbarossa
author_sort Melania Melis
collection DOAJ
description The multifunctional CD36 scavenger receptor facilitates fatty acid (FA) uptake and oxidation and it has been involved in the pathophysiology related to dysfunctional FA metabolism. The common variant in the CD36 gene, rs1761667 (A/G), whose allele A is characterized by a reduced protein expression, has been associated with taste sensitivity to and preference for fat. We therefore aimed at evaluating whether the CD36 polymorphism may influence fatty acid metabolism and endocannabinoid biosynthesis in normal weight (NW) and obese (OB) subjects. Red blood cell (RBC) fatty acid composition, and plasma endocannabinoid levels were determined. In NW subjects with AA genotype was found a marked reduction of RBC saturated fatty acids and palmitic/linoleic ratio (PA/LA), considered as de novo lipogenesis (DNL) biomarkers. Remarkably, to the reduction of DNL biomarkers corresponded an increase of omega-6 index, an indirect marker of the impact on fatty acid metabolism of dietary omega-6 fatty acids, endocannabinoid levels and a higher waist/hip ratio. The presence of the G allele was instead associated with increased endocannabinoid plasma levels and a trend for increased waist/hip ratio in obese subjects, even though exhibited decreased BMI with respect to those with AA genotype. These data indicate that the CD36 polymorphism, rs1761667, leads to a distinct metabolic pattern in NW and in OB subjects. Therefore, their determination may be crucial in developing personalized therapeutic strategies for ameliorating dyslipidemia and other metabolic disorders.
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spelling doaj.art-7ed0d0de3fd54ee2bd1afee803647f6f2022-12-22T00:31:16ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2017-12-01810.3389/fphys.2017.01006314720Polymorphism rs1761667 in the CD36 Gene Is Associated to Changes in Fatty Acid Metabolism and Circulating Endocannabinoid Levels Distinctively in Normal Weight and Obese SubjectsMelania Melis0Gianfranca Carta1Stefano Pintus2Paolo Pintus3Carla A. Piras4Elisabetta Murru5Claudia Manca6Vincenzo Di Marzo7Sebastiano Banni8Iole Tomassini Barbarossa9Department of Biomedical Sciences, Section of Physiology, University of Cagliari, Monserrato, ItalyDepartment of Biomedical Sciences, Section of Physiology, University of Cagliari, Monserrato, ItalyDepartment of Internal Medicine, Center for Metabolic Diseases, Azienda Ospedaliera G. Brotzu, Cagliari, ItalyDepartment of Internal Medicine, Center for Metabolic Diseases, Azienda Ospedaliera G. Brotzu, Cagliari, ItalyDepartment of Internal Medicine, Center for Metabolic Diseases, Azienda Ospedaliera G. Brotzu, Cagliari, ItalyDepartment of Biomedical Sciences, Section of Physiology, University of Cagliari, Monserrato, ItalyDepartment of Biomedical Sciences, Section of Physiology, University of Cagliari, Monserrato, ItalyEndocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Pozzuoli, ItalyDepartment of Biomedical Sciences, Section of Physiology, University of Cagliari, Monserrato, ItalyDepartment of Biomedical Sciences, Section of Physiology, University of Cagliari, Monserrato, ItalyThe multifunctional CD36 scavenger receptor facilitates fatty acid (FA) uptake and oxidation and it has been involved in the pathophysiology related to dysfunctional FA metabolism. The common variant in the CD36 gene, rs1761667 (A/G), whose allele A is characterized by a reduced protein expression, has been associated with taste sensitivity to and preference for fat. We therefore aimed at evaluating whether the CD36 polymorphism may influence fatty acid metabolism and endocannabinoid biosynthesis in normal weight (NW) and obese (OB) subjects. Red blood cell (RBC) fatty acid composition, and plasma endocannabinoid levels were determined. In NW subjects with AA genotype was found a marked reduction of RBC saturated fatty acids and palmitic/linoleic ratio (PA/LA), considered as de novo lipogenesis (DNL) biomarkers. Remarkably, to the reduction of DNL biomarkers corresponded an increase of omega-6 index, an indirect marker of the impact on fatty acid metabolism of dietary omega-6 fatty acids, endocannabinoid levels and a higher waist/hip ratio. The presence of the G allele was instead associated with increased endocannabinoid plasma levels and a trend for increased waist/hip ratio in obese subjects, even though exhibited decreased BMI with respect to those with AA genotype. These data indicate that the CD36 polymorphism, rs1761667, leads to a distinct metabolic pattern in NW and in OB subjects. Therefore, their determination may be crucial in developing personalized therapeutic strategies for ameliorating dyslipidemia and other metabolic disorders.http://journal.frontiersin.org/article/10.3389/fphys.2017.01006/fullCD36 geneobesityfatty acidsmetabolismendocannabinoids
spellingShingle Melania Melis
Gianfranca Carta
Stefano Pintus
Paolo Pintus
Carla A. Piras
Elisabetta Murru
Claudia Manca
Vincenzo Di Marzo
Sebastiano Banni
Iole Tomassini Barbarossa
Polymorphism rs1761667 in the CD36 Gene Is Associated to Changes in Fatty Acid Metabolism and Circulating Endocannabinoid Levels Distinctively in Normal Weight and Obese Subjects
Frontiers in Physiology
CD36 gene
obesity
fatty acids
metabolism
endocannabinoids
title Polymorphism rs1761667 in the CD36 Gene Is Associated to Changes in Fatty Acid Metabolism and Circulating Endocannabinoid Levels Distinctively in Normal Weight and Obese Subjects
title_full Polymorphism rs1761667 in the CD36 Gene Is Associated to Changes in Fatty Acid Metabolism and Circulating Endocannabinoid Levels Distinctively in Normal Weight and Obese Subjects
title_fullStr Polymorphism rs1761667 in the CD36 Gene Is Associated to Changes in Fatty Acid Metabolism and Circulating Endocannabinoid Levels Distinctively in Normal Weight and Obese Subjects
title_full_unstemmed Polymorphism rs1761667 in the CD36 Gene Is Associated to Changes in Fatty Acid Metabolism and Circulating Endocannabinoid Levels Distinctively in Normal Weight and Obese Subjects
title_short Polymorphism rs1761667 in the CD36 Gene Is Associated to Changes in Fatty Acid Metabolism and Circulating Endocannabinoid Levels Distinctively in Normal Weight and Obese Subjects
title_sort polymorphism rs1761667 in the cd36 gene is associated to changes in fatty acid metabolism and circulating endocannabinoid levels distinctively in normal weight and obese subjects
topic CD36 gene
obesity
fatty acids
metabolism
endocannabinoids
url http://journal.frontiersin.org/article/10.3389/fphys.2017.01006/full
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