Abstract |
The G-protein-coupled receptor 120 (GPR120) is a receptor for polyunsaturated fatty acids with anti-inflammatory activity. The R270H variant of GPR120 enhances inflammation in adipose and hepatic tissues. We investigated whether the R270H variant could play a role in determining liver injury in children and adolescents with obesity. Five hundred eighty-one children with obesity were studied. No homozygotes and 20 heterozygotes for the 270H allele were found. Heterozygotes showed higher alanine transaminase (ALT) levels (P = 0.01) than wild-type subjects, and also showed an odds ratio to have pathologic ALT of 3.2 (95% confidence interval [CI] 1.2-8.0, P < 0.05). Moreover, we genotyped the same patients for the patatin-like phospholipase-containing domain 3 (PNPLA3) I148M polymorphism, which is implicated in the development of liver steatosis. Stratifying the patients with the GPR120 270H variant on the basis of their PNPLA3 polymorphism, we demonstrated a significant interaction effect on ALT levels (P = 0.00001), suggesting a driving effect of the PNPLA3 148M allele on liver injury in children with obesity carrying this variant.
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Authors | Pierluigi Marzuillo, Anna Grandone, Mariasole Conte, Francesco Capuano, Grazia Cirillo, Anna Di Sessa, Giuseppina R Umano, Roberta Romano, Laura Perrone, Emanuele Miraglia del Giudice |
Journal | Journal of pediatric gastroenterology and nutrition
(J Pediatr Gastroenterol Nutr)
Vol. 59
Issue 4
Pg. 472-5
(Oct 2014)
ISSN: 1536-4801 [Electronic] United States |
PMID | 25250621
(Publication Type: Journal Article)
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Chemical References |
- FFAR4 protein, human
- Fatty Acids, Unsaturated
- Membrane Proteins
- Receptors, G-Protein-Coupled
- Alanine Transaminase
- Lipase
- adiponutrin, human
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Topics |
- Adipose Tissue
(pathology)
- Adolescent
- Alanine Transaminase
(blood)
- Alleles
- Child
- Child, Preschool
- Fatty Acids, Unsaturated
(genetics)
- Fatty Liver
(etiology, genetics)
- Female
- Genotype
- Heterozygote
- Humans
- Inflammation
(etiology, genetics)
- Lipase
(genetics)
- Liver
(enzymology, pathology)
- Male
- Membrane Proteins
(genetics)
- Odds Ratio
- Pediatric Obesity
(complications, genetics)
- Polymorphism, Genetic
- Receptors, G-Protein-Coupled
(genetics)
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