Current Search:  Research Repository (x) » * (x) » Citation (x) » Askew, A. (x) » Department of Behavioral Sciences and Social Medicine (x) » Genetics (x)

Search results

  • CSV Spreadsheet
(1 - 4 of 4)
Visual Perspective and Genetics
Title
Visual Perspective and Genetics: A Commentary on Lemogne and Colleagues.
Creator
Sutin, Angelina
Abstract/Description
Lemogne and colleagues offer an interesting extension to their previous work on visual perspective and depression: Individuals at-risk for depression (defined as higher scores on Harm Avoidance), without a history of mood disorders, report retrieval of positive memories from the 3rd person perspective. Their findings suggest that the retrieval of positive experiences from the 3rd person perspective may be a risk-factor for depression, not just a lingering consequence of it. Their study,...
Show moreLemogne and colleagues offer an interesting extension to their previous work on visual perspective and depression: Individuals at-risk for depression (defined as higher scores on Harm Avoidance), without a history of mood disorders, report retrieval of positive memories from the 3rd person perspective. Their findings suggest that the retrieval of positive experiences from the 3rd person perspective may be a risk-factor for depression, not just a lingering consequence of it. Their study, however, also reports a genetic association in a severely underpowered sample. Rather than focusing on gene x environment interactions, which large, well-powered studies on related phenotypes have failed to detect, a greater understanding of the phenomenology of visual perspective may be a more fruitful avenue for future research.
Show less
Date Issued
2009
Identifier
FSU_migr_mhs-0032, 10.1016/j.concog.2009.05.002
Format
Citation
BDNF Val66Met is Associated with Introversion and Interacts with 5-HTTLPR to Influence Neuroticism
Title
BDNF Val66Met is Associated with Introversion and Interacts with 5-HTTLPR to Influence Neuroticism.
Creator
Terracciano, Antonio, Tanaka, Toshiko, Sutin, Angelina, Deiana, Barbara, Balaci, Lenuta, Sanna, Serena, Olla, Nazario, Maschio, Andrea, Uda, Manuela, Ferrucci, Luigi,...
Show moreTerracciano, Antonio, Tanaka, Toshiko, Sutin, Angelina, Deiana, Barbara, Balaci, Lenuta, Sanna, Serena, Olla, Nazario, Maschio, Andrea, Uda, Manuela, Ferrucci, Luigi, Schlessinger, David, Costa, Paul
Show less
Abstract/Description
Brain-derived neurotrophic factor (BDNF) regulates synaptic plasticity and neurotransmission, and has been linked to neuroticism, a major risk factor for psychiatric disorders. A recent genome-wide association (GWA) scan, however, found the BDNF Val66Met polymorphism (rs6265) associated with extraversion but not with neuroticism. In this study, we examine the links between BDNF and personality traits, assessed using the Revised NEO Personality Inventory (NEO-PI-R), in a sample from SardiNIA ...
Show moreBrain-derived neurotrophic factor (BDNF) regulates synaptic plasticity and neurotransmission, and has been linked to neuroticism, a major risk factor for psychiatric disorders. A recent genome-wide association (GWA) scan, however, found the BDNF Val66Met polymorphism (rs6265) associated with extraversion but not with neuroticism. In this study, we examine the links between BDNF and personality traits, assessed using the Revised NEO Personality Inventory (NEO-PI-R), in a sample from SardiNIA (n=1560) and the Baltimore Longitudinal Study of Aging (BLSA; n=1131). Consistent with GWA results, we found that BDNF Met carriers were more introverted. By contrast, in both samples and in a meta-analysis inclusive of published data (n=15251), we found no evidence for a main effect of BDNF Val66Met on neuroticism. Finally, on the basis of recent reports of an epistatic effect between BDNF and the serotonin transporter, we explored a Val66Met x 5-HTTLPR interaction in a larger SardiNIA sample (n=2333). We found that 5-HTTLPR LL carriers scored lower on neuroticism in the presence of the BDNF Val variant, but scored higher on neuroticism in the presence of the BDNF Met variant. Our findings support the association between the BDNF Met variant and introversion and suggest that BDNF interacts with the serotonin transporter gene to influence neuroticism.
Show less
Date Issued
2010
Identifier
FSU_migr_mhs-0029, 10.1038/npp.2009.213
Format
Citation
Genome-Wide Association Scan of Trait Depression
Title
Genome-Wide Association Scan of Trait Depression.
Creator
Terracciano, Antonio, Tanaka, Toshiko, Sutin, Angelina, Sanna, Serena, Deiana, Barbara, Lai, Sandra, Uda, Manuela, Schlessinger, David, Abecasis, Gonçalo, Ferrucci, Luigi, Costa...
Show moreTerracciano, Antonio, Tanaka, Toshiko, Sutin, Angelina, Sanna, Serena, Deiana, Barbara, Lai, Sandra, Uda, Manuela, Schlessinger, David, Abecasis, Gonçalo, Ferrucci, Luigi, Costa, Paul
Show less
Abstract/Description
BACKGROUND: Independent of temporal circumstances, some individuals have greater susceptibility to depressive affects, such as feelings of guilt, sadness, hopelessness, and loneliness. Identifying the genetic variants that contribute to these individual differences can point to biological pathways etiologically involved in psychiatric disorders. METHODS: Genome-wide association scans for the depression scale of the Revised NEO Personality Inventory in community-based samples from a...
Show moreBACKGROUND: Independent of temporal circumstances, some individuals have greater susceptibility to depressive affects, such as feelings of guilt, sadness, hopelessness, and loneliness. Identifying the genetic variants that contribute to these individual differences can point to biological pathways etiologically involved in psychiatric disorders. METHODS: Genome-wide association scans for the depression scale of the Revised NEO Personality Inventory in community-based samples from a genetically homogeneous area of Sardinia, Italy (n = 3972) and from the Baltimore Longitudinal Study of Aging in the United States (n = 839). RESULTS: Meta-analytic results for genotyped or imputed single nucleotide polymorphisms indicate that the strongest association signals for trait depression were found in RORA (rs12912233; p = 6 × 10⁻⁷·), a gene involved in circadian rhythm. A plausible biological association was also found with single nucleotide polymorphisms within GRM8 (rs17864092; p = 5 × 10⁻⁶), a metabotropic receptor for glutamate, a major excitatory neurotransmitter in the central nervous system. CONCLUSIONS: These findings suggest shared genetic basis underlying the continuum from personality traits to psychopathology.
Show less
Date Issued
2010
Identifier
FSU_migr_mhs-0023, 10.1016/j.biopsych.2010.06.030
Format
Citation
Meta-analysis of Genome-wide Association Studies Identifies Common Variants in CTNNA2 Associated with Excitement-seeking
Title
Meta-analysis of Genome-wide Association Studies Identifies Common Variants in CTNNA2 Associated with Excitement-seeking.
Creator
Terracciano, Antonio, Esko, Tönu, Sutin, Angelina, de Moor, Marleen, Meirelles, Osorio, Zhu, G., Tanaka, Toshiko, Giegling, Ina, Nutile, Teresa, Realo, Anu, Allik, J., Hansell,...
Show moreTerracciano, Antonio, Esko, Tönu, Sutin, Angelina, de Moor, Marleen, Meirelles, Osorio, Zhu, G., Tanaka, Toshiko, Giegling, Ina, Nutile, Teresa, Realo, Anu, Allik, J., Hansell, Narelle, Wright, Margeret, Montgomery, G., Willemsen, Gonneke, Hottenga, Jouke-Jan, Friedl, M., Ruggiero, D., Sorice, R., Sanna, Serena, Cannas, Alessandra, Räikkönen, K., Widen, Elisabeth, Palotie, Aarno, Eriksson, Johan, Cucca, Francesco, Krueger, Robert F., Lahti, Jari, Luciano, Michelle, Smoller, Jordan W., van Duijn, Cornelia, Abecasis, Gonçalo, Boomsma, Dorret, Ciullo, Marina, Costa, Paul, Ferrucci, Luigi, Martin, Nicholas G., Metspalu, Andres, Rujescu, Dan, Schlessinger, David, Uda, Manuela
Show less
Abstract/Description
The tendency to seek stimulating activities and intense sensations define excitement-seeking, a personality trait akin to some aspects of sensation-seeking. This trait is a central feature of extraversion and is a component of the multifaceted impulsivity construct. Those who score high on measures of excitement-seeking are more likely to smoke, use other drugs, gamble, drive recklessly, have unsafe/unprotected sex and engage in other risky behaviors of clinical and social relevance. To...
Show moreThe tendency to seek stimulating activities and intense sensations define excitement-seeking, a personality trait akin to some aspects of sensation-seeking. This trait is a central feature of extraversion and is a component of the multifaceted impulsivity construct. Those who score high on measures of excitement-seeking are more likely to smoke, use other drugs, gamble, drive recklessly, have unsafe/unprotected sex and engage in other risky behaviors of clinical and social relevance. To identify common genetic variants associated with the Excitement-Seeking scale of the Revised NEO Personality Inventory, we performed genome-wide association studies in six samples of European ancestry (N=7860), and combined the results in a meta-analysis. We identified a genome-wide significant association between the Excitement-Seeking scale and rs7600563 (P=2 × 10(-8)). This single-nucleotide polymorphism maps within the catenin cadherin-associated protein, alpha 2 (CTNNA2) gene, which encodes for a brain-expressed α-catenin critical for synaptic contact. The effect of rs7600563 was in the same direction in all six samples, but did not replicate in additional samples (N=5105). The results provide insight into the genetics of excitement-seeking and risk-taking, and are relevant to hyperactivity, substance use, antisocial and bipolar disorders.
Show less
Date Issued
2011
Identifier
FSU_migr_mhs-0018, 10.1038/tp.2011.42
Format
Citation