Cannabinoid type 1 receptor gene polymorphism and macronutrient intake

Maria Gabriella Caruso, Patrizia Gazzerro, Maria Notarnicola, Anna Maria Cisternino, Vito Guerra, Giovanni Misciagna, Chiara Laezza, Maurizio Bifulco

Research output: Contribution to journalArticlepeer-review


Background: Cannabinoid type 1 receptor (CB1-R) is a key mediator in the control of food intake and is linked to obesity. Aim: To evaluate the relationship between CB1-R gene polymorphism and dietary macronutrient intake in elderly subjects. Methods: This study included 118 subjects (60 males, 58 females) from a population survey carried out in southern Italy in 1992-1993 who were older than 65 years and previously characterized for CB1-R polymorphism (75 with GG wild-type genotype, 41 with heterozygous polymorphic allele AG, and 2 with genotype AA). All subjects completed a validated semi-quantitative food frequency questionnaire. Statistical methods included multiple logistic regression to model macronutrient intake to genotype, controlling for potential confounders. Results: When controlled for age, gender, and body mass index, the intake of dietary cholesterol and saturated fats corrected for calories was inversely associated with the CB1-R 1359 G/A polymorphism, while the intake of starchy carbohydrates was directly associated with this polymorphism. Conclusion: In our unselected elderly population, the 1359 G/A polymorphism is linked with a specific macronutrient intake. This could be explained by the role of the cannabinoid system as a determinant of food intake and eating behavior.

Original languageEnglish
Pages (from-to)305-313
Number of pages9
JournalJournal of Nutrigenetics and Nutrigenomics
Issue number6
Publication statusPublished - Mar 2013


  • Cannabinoid receptor
  • Gene polymorphism
  • Nutrients
  • Phenotype
  • Population study

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Genetics
  • Food Science


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