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[The association between beta-adrenergic receptor gene polymorphisms and personality traits]
Maki Numajiri1, Jun Aoki, Daisuke Nishizawa
1Laboratory of Neurophysiology the Graduate School of Environmental Health Sciences Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, 252-5201 Japan.
Nihon Shinkei Seishin Yakurigaku Zasshi = Japanese Journal of Psychopharmacology
|September 28, 2012
Summary
Genetic variations in beta-adrenergic receptors (beta-AR) correlate with personality traits. This study found specific gene polymorphisms linked to self-directedness, persistence, and self-transcendence in Japanese adults.
Area of Science:
- Behavioral genetics
- Psychiatric genetics
- Pharmacogenetics
Context:
- Personality traits are influenced by genetic factors.
- Beta-adrenergic receptors (beta-AR) play a role in the central nervous system and behavior.
- Single nucleotide polymorphisms (SNPs) in beta-AR genes may affect personality.
Purpose:
- To investigate the association between beta-adrenergic receptor (beta-AR) gene polymorphisms and personality traits.
- To analyze these relationships overall and by sex in a Japanese cohort.
Summary:
- A study of 192 healthy Japanese subjects examined the link between beta-AR gene SNPs and personality assessed by the Temperament and Character Inventory (TCI).
- Significant correlations were found between specific SNPs in ADRB1, ADRB2, and ADRB3 genes and TCI subscales like self-directedness, persistence, self-transcendence, novelty-seeking, harm avoidance, and cooperativeness.
- These associations varied between sexes, indicating sex-specific genetic influences on personality.
Impact:
- Provides insights into the genetic underpinnings of personality traits.
- Highlights potential genetic markers for understanding individual differences in behavior.
- Suggests a genetic basis for certain personality dimensions related to the beta-adrenergic system.
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