The present study aimed to investigate the allelic distribution of polymorphism (G1359A) of the CB1 receptor gene in a geographical area of Spain (Community of Castilla y Leon) and to evaluate the influence of this polymorphism on obesity anthropometric parameters and cardiovascular risk factors in the fasted state in obese patients.
CNR1 haplotypes were formed from four CNR1 SNPs (rs806368, rs1049353, rs2023239, and rs6454674) and tested with level of cannabis exposure to assess their interactive effects on the lingual gyrus, cingulum (right and left) and rolandic operculum, regions showing cannabis exposure effects in the SPM8 analyses.
No significant difference was found between genotypes and alleles of DRD2 Taq1A and DRD2 Taq1B polymorphism in patients and controls, while the CNR1 receptor 1359G/A polymorphism and the presence of the A allele may be one risk factor for susceptibility to obesity.
Previous studies demonstrated that G1359A polymorphism of cannabinoid receptor-1 (CNR1) was associated with cardiovascular risk factors including obesity, insulin resistance, dyslipidemia, and inflammation, which are also risk factors for developing type 2 diabetes mellitus (T2DM).
When genotype was considered in the case-control analyses, there was a group by genotype interaction, such that the rs2023239 G allele predicted lower volume of bilateral hippocampi among cannabis users relative to controls (both p<0.001).
Intriguingly, rs9444584 is in strong linkage disequilibrium with two other SNPs (rs9450898 (r(2) = 0.841) and rs2023239 (r(2) = 0.920)) that have been associated with addiction, obesity (rs2023239), and reduced fronto-temporal white matter volumes in schizophrenia patients as a result of cannabis misuse (rs9450898).
Between-group comparisons showed that carriers of the CNR1 rs2023239 G allele had significantly greater activity in reward-related areas of the brain, such as the orbitofrontal cortex (OFC), inferior frontal gyrus (IFG), and anterior cingulate gyrus (ACG), during exposure to marijuana cues, as compared with those with the A/A genotype for this SNP.
Two single nucleotide polymorphisms (SNPs) in the CNR1 (rs2023239) and FAAH (rs324420) genes, associated previously with substance abuse and functional changes in cannabinoid regulation, were examined in a sample of daily marijuana smokers.
We therefore genotyped this SNP in 235 independent German obesity families (at least two obese sibs and both parents) and in parallel screened the CNR1 coding region for sequence variations in 120 German extremely obese children and adolescents who mainly contributed to the initial trend observed for rs1049353.
Haplotype frequency distributions between MD sample and controls showed a significant difference for Block 1 (rs806368-rs1049353-rs806371) (p = 0.008).
Haplotype frequency distributions between MD sample and controls showed a significant difference for Block 1 (rs806368-rs1049353-rs806371) (p = 0.008).
The rs1049353 polymorphism also buffered the effects of childhood physical abuse on major depressive disorder; however, this influence was largely attributable to anhedonic depression.
The rs1049353 polymorphism also buffered the effects of childhood physical abuse on major depressive disorder; however, this influence was largely attributable to anhedonic depression.
We assessed the CB1 receptor gene (CNR1) single nucleotide polymorphism (SNP) rs1049353 (1359 G/A) and the fatty acid amide hydrolase (FAAH) gene rs324420 SNP (cDNA 385C to A) for their associations with MD and/or BD in 83 Caucasian patients with recurrent MD, 134 Caucasian individuals with BD, and 117 Caucasian healthy subjects.
We assessed the CB1 receptor gene (CNR1) single nucleotide polymorphism (SNP) rs1049353 (1359 G/A) and the fatty acid amide hydrolase (FAAH) gene rs324420 SNP (cDNA 385C to A) for their associations with MD and/or BD in 83 Caucasian patients with recurrent MD, 134 Caucasian individuals with BD, and 117 Caucasian healthy subjects.
Therefore, the impact of cannabinoid receptor 1 gene (CNR1) variants rs1049353 and rs12720071 on antidepressant treatment response was evaluated in 256 Caucasian patients with Major Depression.
Therefore, the impact of cannabinoid receptor 1 gene (CNR1) variants rs1049353 and rs12720071 on antidepressant treatment response was evaluated in 256 Caucasian patients with Major Depression.
Seven out of the 32 tSNPs within PPARA (rs4253765, rs4263776, rs6007662, rs1800206, rs4253763, rs6008197 and rs4253655) and 3 out of 12 tSNPs within CNR1 (rs1049353, rs7766029 and rs806366) were nominally associated with SZ (uncorrected p<0.05).
Two SNPs that were previously associated with cannabis dependence in other studies were also significant with this phenotype in our analyses [rs806368 (P = 0.05) and rs806380 (P = 0.009)].