PMID- 21658778 OWN - NLM STAT- MEDLINE DCOM- 20111221 LR - 20181201 IS - 1573-2517 (Electronic) IS - 0165-0327 (Linking) VI - 134 IP - 1-3 DP - 2011 Nov TI - Genetic association between bipolar disorder and 524A>C (Leu133Ile) polymorphism of CNR2 gene, encoding for CB2 cannabinoid receptor. PG - 427-30 LID - 10.1016/j.jad.2011.05.023 [doi] AB - INTRODUCTION: Several studies provided evidence that the endocannabinoid system (ECS) is involved in psychiatric diseases, like major depression, schizophrenia and bipolar disorder (BD), mainly focusing on CB1 cannabinoid receptor, and FAAH, the fatty acid amide hydrolase involved in endocannabinoid metabolism. In this study we investigated the possible association of BD with three missense SNPs, of the gene CNR2, encoding for CB2 cannabinoid receptor. METHODS: The possible association between BD and three CNR2 missense SNPs, namely rs2501432 (315A>G; Arg63Gln), rs41311993 (524C>A; Leu133Ile) and rs2229579 (1073C>T; Tyr316His), was investigated through a case-control study. Eighty patients and one hundred and sixty healthy subjects were recruited. Allele Specific Oligonucleotide (ASO)-PCR and restriction fragment length polymorphism (RFLP) methods were used for genotyping. RESULTS: A statistically significant association was found between BD and the CNR2 524C>A; Leu133Ile (P(chi(2)) = 0.001; OR = 4.74; 95% C.I. = 2.52-10.50) while no statistically significant difference between BD and control group was observed for the other two SNPs. CONCLUSION: Though further investigations are necessary to confirm this data, our results suggest that CB2 cannabinoid receptor may play a role in BD. CI - Copyright (c) 2011 Elsevier B.V. All rights reserved. FAU - Minocci, D AU - Minocci D AD - Dept of Psychiatry, Unit of Neurobiology, Pharmacology and Biotechnology, University of Pisa, Pisa, Italy. FAU - Massei, J AU - Massei J FAU - Martino, A AU - Martino A FAU - Milianti, M AU - Milianti M FAU - Piz, L AU - Piz L FAU - Di Bello, D AU - Di Bello D FAU - Sbrana, A AU - Sbrana A FAU - Martinotti, E AU - Martinotti E FAU - Rossi, A M AU - Rossi AM FAU - Nieri, P AU - Nieri P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110611 PL - Netherlands TA - J Affect Disord JT - Journal of affective disorders JID - 7906073 RN - 0 (Cannabinoid Receptor Modulators) RN - 0 (Receptor, Cannabinoid, CB1) RN - 0 (Receptor, Cannabinoid, CB2) RN - EC 3.5.- (Amidohydrolases) RN - EC 3.5.1.- (fatty-acid amide hydrolase) SB - IM MH - Adult MH - Alleles MH - Amidohydrolases/genetics/metabolism MH - Bipolar Disorder/*genetics MH - Cannabinoid Receptor Modulators/genetics MH - Case-Control Studies MH - Depressive Disorder, Major/genetics MH - Female MH - *Genetic Predisposition to Disease MH - Genotype MH - Humans MH - Male MH - Mutation, Missense MH - Polymorphism, Genetic MH - Polymorphism, Restriction Fragment Length MH - Polymorphism, Single Nucleotide MH - Receptor, Cannabinoid, CB1/genetics/metabolism MH - Receptor, Cannabinoid, CB2/*genetics/metabolism MH - Schizophrenia/genetics EDAT- 2011/06/11 06:00 MHDA- 2011/12/22 06:00 CRDT- 2011/06/11 06:00 PHST- 2011/03/13 00:00 [received] PHST- 2011/05/14 00:00 [revised] PHST- 2011/05/15 00:00 [accepted] PHST- 2011/06/11 06:00 [entrez] PHST- 2011/06/11 06:00 [pubmed] PHST- 2011/12/22 06:00 [medline] AID - S0165-0327(11)00269-2 [pii] AID - 10.1016/j.jad.2011.05.023 [doi] PST - ppublish SO - J Affect Disord. 2011 Nov;134(1-3):427-30. doi: 10.1016/j.jad.2011.05.023. Epub 2011 Jun 11.