[No authors listed]
BACKGROUND:Emotional disturbances, such as anxiety and depression are common after acute ischemic stroke (AIS). Individual variation in emotional outcome is strongly influenced by genetic factors. One of pituitary axis, is the hypothalamic-pituitary-thyroid axis, a critical regulator of post-stroke recovery, suggesting that allelic variants in thyroid hormone (TH) signaling regulation can influence stroke outcome. AIM:To determine associations between AIS emotional outcome and allelic variants of the TH metabolizing enzymes 1-3 type deiodinase (DIO1-3) and the membrane transporting organic anion polypeptide 1C1 (OATP1C1). METHODS:Eligible AIS patients from Lithuania (n=168) were genotyped for ten DIO1-3 and OATP1C1 single nucleotide polymorphisms (SNP): DIO1 rs12095080-A/G, rs11206244-C/T, and rs2235544-A/C; DIO2 rs225014-T/C and rs225015-G/A; DIO3 rs945006-T/G; OATP1C1 rs974453-G/A, rs10444412-T/C, rs10770704-C/T, and rs1515777-A/G. Emotional outcome was evaluated using the Hospital Anxiety and Depression Scale at discharge from the neurology department after experienced index AIS. RESULTS:After adjustment for potential confounders, the major allelic (wild-type) DIO1-rs12095080 genotype (AA) was associated with higher odds ratio of anxiety symptoms (ORâ¯=â¯5.16; 95% CI: 1.04-25.58; pâ¯=â¯0.045), conversely, DIO1-rs11206244 wild-type genotype (CC) and wild-type OATP1C1-rs1515777 allele containing the genotypes (AAâ¯+â¯AG) were associated with lower odds ratio of symptoms of anxiety (ORâ¯=â¯0.37; 95% CI: 0.14-0.96; pâ¯=â¯0.041 and ORâ¯=â¯0.30; 95% CI: 0.12-0.76; pâ¯=â¯0.011, respectively). Wild-type OATP1C1-rs974453 genotype (GG) was associated with higher odds ratio of symptoms of depression (ORâ¯=â¯2.73; 95% CI: 1.04-7.12; pâ¯=â¯0.041). CONCLUSION:Allelic variants in thyroid axis genes may predict emotional outcomes of AIS.
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