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Salminen SP, Solismaa A, Lyytikäinen LP, Paavonen V, Mononen N, Lehtimäki T, Leinonen E, Kampman O. Genetic risk scores associated with temperament clusters in Finnish depression patients. Acta Neuropsychiatr 2024; 36:51-59. [PMID: 37665031 DOI: 10.1017/neu.2023.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
OBJECTIVE Cloninger's temperament dimensions have been studied widely in relation to genetics. In this study, we examined Cloninger's temperament dimensions grouped with cluster analyses and their association with single nucleotide polymorphisms (SNPs). This study included 212 genotyped Finnish patients from the Ostrobothnia Depression Study. METHODS The temperament clusters were analysed at baseline and at six weeks from the beginning of the depression intervention study. We selected depression-related catecholamine and serotonin genes based on a literature search, and 59 SNPs from ten different genes were analysed. The associations of single SNPs with temperament clusters were studied. Using the selected genes, genetic risk score (GRS) analyses were conducted considering appropriate confounding factors. RESULTS No single SNP had a significant association with the temperament clusters. Associations between GRSs and temperament clusters were observed in multivariate models that were significant after permutation analyses. Two SNPs from the DRD3 gene, two SNPs from the SLC6A2 gene, one SNP from the SLC6A4 gene, and one SNP from the HTR2A gene associated with the HHA/LRD/LP (high harm avoidance, low reward dependence, low persistence) cluster at baseline. Two SNPs from the HTR2A gene were associated with the HHA/LRD/LP cluster at six weeks. Two SNPs from the HTR2A gene and two SNPs from the COMT gene were associated with the HP (high persistence) cluster at six weeks. CONCLUSION GRSs seem to associate with an individual's temperament profile, which can be observed in the clusters used. Further research needs to be conducted on these types of clusters and their clinical applicability.
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Affiliation(s)
- Simo-Pekko Salminen
- Department of Psychiatry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Anssi Solismaa
- Department of Psychiatry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Psychiatry, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland
| | - Leo-Pekka Lyytikäinen
- Department of Clinical Chemistry, Fimlab Laboratories and Finnish Cardiovascular Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Vesa Paavonen
- Department of Psychiatry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Nina Mononen
- Department of Clinical Chemistry, Fimlab Laboratories and Finnish Cardiovascular Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories and Finnish Cardiovascular Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Esa Leinonen
- Department of Psychiatry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Psychiatry, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland
| | - Olli Kampman
- Department of Psychiatry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Psychiatry, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland
- Department of Clinical Sciences (Psychiatry), Umeå University, and Västerbotten Welfare Region, Umeå, Sweden
- Department of Clinical Sciences (Psychiatry), University of Turku, Turku, Finland
- Wellbeing Services County of Ostrobothnia, Vaasa, Finland
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Kostrzewa-Nowak D, Nowak R, Kubaszewska J, Gos W. Interdisciplinary Approach to Biological and Health Implications in Selected Professional Competences. Brain Sci 2022; 12:brainsci12020236. [PMID: 35203999 PMCID: PMC8870650 DOI: 10.3390/brainsci12020236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/28/2022] [Accepted: 02/05/2022] [Indexed: 01/09/2023] Open
Abstract
Everyday life’s hygiene and professional realities, especially in economically developed countries, indicate the need to modify the standards of pro-health programs as well as modern hygiene and work ergonomics programs. These observations are based on the problem of premature death caused by civilization diseases. The biological mechanisms associated with financial risk susceptibility are well described, but there is little data explaining the biological basis of neuroaccounting. Therefore, the aim of the study was to present relationships between personality traits, cognitive competences and biological factors shaping behavioral conditions in a multidisciplinary aspect. This critical review paper is an attempt to compile biological and psychological factors influencing the development of professional competences, especially decent in the area of accounting and finance. We analyzed existing literature from wide range of scientific disciplines (including economics, psychology, behavioral genetics) to create background to pursuit multidisciplinary research models in the field of neuroaccounting. This would help in pointing the best genetically based behavioral profile of future successful financial and accounting specialists.
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Affiliation(s)
- Dorota Kostrzewa-Nowak
- Institute of Physical Culture Sciences, University of Szczecin, 17C Narutowicza St., 70-240 Szczecin, Poland; (R.N.); (J.K.)
- Correspondence:
| | - Robert Nowak
- Institute of Physical Culture Sciences, University of Szczecin, 17C Narutowicza St., 70-240 Szczecin, Poland; (R.N.); (J.K.)
| | - Joanna Kubaszewska
- Institute of Physical Culture Sciences, University of Szczecin, 17C Narutowicza St., 70-240 Szczecin, Poland; (R.N.); (J.K.)
| | - Waldemar Gos
- Institute of Economy and Finance, University of Szczecin, 64 Mickiewicza St., 71-101 Szczecin, Poland;
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The Association between Temperament, Chronotype, Depressive Symptoms, and Disease Activity among Patients with Inflammatory Bowel Disease-A Cross-Sectional Pilot Study. Life (Basel) 2021; 11:life11121347. [PMID: 34947878 PMCID: PMC8706576 DOI: 10.3390/life11121347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/29/2021] [Accepted: 12/04/2021] [Indexed: 11/18/2022] Open
Abstract
The psychological aspect may play an important role in ulcerative colitis (UC) and Crohn’s disease (CD). The aims of this study were to explore the differences between patients with UC and CD regarding chronotype, temperament and depression, and to assess the psychological factors mentioned as predictors of disease activity. In total, n = 37 patients with UC and n = 47 patients with CD were included in the study. They underwent a clinical assessment, including the Mayo score or Crohn Disease Activity Index (CDAI), and completed questionnaires: a sociodemographic survey, Formal Characteristics of Behavior–Temperament Inventory (FCB-TI), Chronotype Questionnaire (CQ), and the Beck Depression Index II (BDI). The Sensory Sensitivity score was higher among patients with CD than UC (p = 0.04). The emotional reactivity and endurance scores were higher among women than men with CD (p = 0.028 and p = 0.012 respectively). CQ Morningness–Eveningness (ME) correlated with Endurance (p = 0.041), Emotional Reactivity (p = 0.016), and Activity (p = 0.004). ME correlated with Rhythmicity among CD patients (p = 0.002). The Mayo score was predicted by Perseverance. The CDAI score was predicted by the BDI score. The pattern of the relationship between chronotype and temperament may differentiate patients with UC and CD. Personal disposition may play a role in the clinical assessment of patients with IBD.
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Suchanecka A, Chmielowiec J, Chmielowiec K, Masiak J, Sipak-Szmigiel O, Sznabowicz M, Czarny W, Michałowska-Sawczyn M, Trybek G, Grzywacz A. Dopamine Receptor DRD2 Gene rs1076560, Personality Traits and Anxiety in the Polysubstance Use Disorder. Brain Sci 2020; 10:brainsci10050262. [PMID: 32365807 PMCID: PMC7287957 DOI: 10.3390/brainsci10050262] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 11/16/2022] Open
Abstract
Development of an addiction is conditioned by many factors. The dopaminergic system has been shown to be the key element in this process. In this paper, we analyzed the influence of dopamine receptor 2 polymorphism rs1076560 in two groups—polysubstance-dependent male patients (n = 299) and the controls matched for age (n = 301). In both groups, we applied the same questionnaires for testing—Mini-international neuropsychiatric interview, the NEO Five-Factor Inventory, and the State–Trait Anxiety Inventory. The real-time PCR method was used for genotyping. When we compared the controls with the case group subjects, we observed significantly higher scores in the second group on both the state and trait scales of anxiety, as well as on the Neuroticism and Openness scales of the NEO-FFI; and lower scores on the scales of Extraversion and Agreeability of the NEO-FFI. The model 2 × 3 factorial ANOVA of the addicted subjects and controls was performed, and the DRD2 rs1076560 variant interaction was found for the anxiety state and trait scales, and for the NEO-FFI Neuroticism scale. The observed associations allow noticing that analysis of psychological factors in combination with genetic data opens new possibilities in addiction research.
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Affiliation(s)
- Aleksandra Suchanecka
- Independent Laboratory of Health Promotion of the Pomeranian Medical University in Szczecin, 11 Chlapowskiego St., 70-204 Szczecin, Poland;
| | - Jolanta Chmielowiec
- Department of Hygiene and Epidemiology, Collegium Medicum, University of Zielona Góra, Zyty 28 St., 65-046 Zielona Gora, Poland; (J.C.); (K.C.)
| | - Krzysztof Chmielowiec
- Department of Hygiene and Epidemiology, Collegium Medicum, University of Zielona Góra, Zyty 28 St., 65-046 Zielona Gora, Poland; (J.C.); (K.C.)
| | - Jolanta Masiak
- Neurophysiological Independent Unit, Department of Psychiatry, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Olimpia Sipak-Szmigiel
- Department of Obstetrics and Pathology of Pregnancy, Pomeranian Medical University, 48 Żołnierska St., 71-210 Szczecin, Poland;
| | - Mariusz Sznabowicz
- Indywidual Medical Practice MD M Sznabowicz, Lutówko 14, 74-320 Barlinek, Poland;
| | - Wojciech Czarny
- Faculty of Physical Education, University of Rzeszów, Towarnickiego 3 St., 35-959 Rzeszów, Poland;
| | - Monika Michałowska-Sawczyn
- Faculty of Physical Culture, Gdańsk University of Physical Education and Sport, Kazimierza Górskiego 1 St., 80-336 Gdańsk, Poland;
| | - Grzegorz Trybek
- Department of Oral Surgery, Pomeranian Medical University in Szczecin, 72 Powstańców Wlkp. St., 70-111 Szczecin, Poland;
| | - Anna Grzywacz
- Independent Laboratory of Health Promotion of the Pomeranian Medical University in Szczecin, 11 Chlapowskiego St., 70-204 Szczecin, Poland;
- Correspondence:
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Shao X, Zhu G. Associations Among Monoamine Neurotransmitter Pathways, Personality Traits, and Major Depressive Disorder. Front Psychiatry 2020; 11:381. [PMID: 32477180 PMCID: PMC7237722 DOI: 10.3389/fpsyt.2020.00381] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 04/16/2020] [Indexed: 12/13/2022] Open
Abstract
Major depressive disorder (MDD) is a complex psychiatric disease requiring multidisciplinary approaches to identify specific risk factors and establish more efficacious treatment strategies. Although the etiology and pathophysiology of MDD are not clear until these days, it is acknowledged that they are almost certainly multifactorial and comprehensive. Monoamine neurotransmitter system dysfunction and specific personality traits are independent risk factors for depression and suicide. These factors also demonstrate complex interactions that influence MDD pathogenesis and symptom expression. In this review, we assess these relationships with the aim of providing a reference for the development of precision medicine.
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Affiliation(s)
- Xiaojun Shao
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Gang Zhu
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China.,Central Laboratory, The First Affiliated Hospital of China Medical University, Shenyang, China
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Bierzynska M, Sobczak PA, Kozak A, Bielecki M, Strelau J, Kossut MM. No Risk, No Differences. Neural Correlates of Temperamental Traits Revealed Using Naturalistic fMRI Method. Front Psychol 2019; 10:1757. [PMID: 31447728 PMCID: PMC6691771 DOI: 10.3389/fpsyg.2019.01757] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 07/15/2019] [Indexed: 12/31/2022] Open
Abstract
The main goal of this study was to identify the moderating role of temperamental traits, as defined by Strelau's Regulative Theory of Temperament (RTT), in explaining brain activity evoked by video stimuli of varying stimulatory value. fMRI scans were performed in a group of 61 young females in the luteal phase of the menstrual cycle. The validity of stimulus selection had been verified prior to the main study by collecting declarative measures of affective reactions, including valence, arousal, and basic emotions ratings. The choice of dynamic and complex video-stimuli allowed us to induce high levels of arousal effectively. Three categories of movies used in the experiment included neutral, low arousing, and highly arousing scenes. Movies classified into the last category depicted extreme-sport activities allowing us to confront the subjects with recordings potentially life-threatening situations. Results of the study revealed that activation of orbitofrontal cortex in highly arousing conditions is linked to the levels of activity, while traits of perseverance and emotional reactivity were negatively correlated with the BOLD signal in this structure. Low arousing movies evoked higher activation of the amygdala and left hippocampus in emotionally reactive subjects. Obtained results might be coherently interpreted in the light of RTT theory, therefore providing its first validation using functional brain imaging.
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Affiliation(s)
- Maria Bierzynska
- Laboratory of Neuroplasticity, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Pamela Anna Sobczak
- Faculty of Psychology, SWPS University of Social Sciences and Humanities, Warsaw, Poland
| | - Anna Kozak
- Laboratory of Neuroplasticity, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Maksymilian Bielecki
- Faculty of Psychology, SWPS University of Social Sciences and Humanities, Warsaw, Poland
| | - Jan Strelau
- Faculty of Psychology, SWPS University of Social Sciences and Humanities, Warsaw, Poland
| | - Malgorzata Maria Kossut
- Laboratory of Neuroplasticity, Nencki Institute of Experimental Biology, Warsaw, Poland.,Faculty of Psychology, SWPS University of Social Sciences and Humanities, Warsaw, Poland
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Dziembowska I, Kwapisz J, Izdebski P, Żekanowska E. Mild iron deficiency may affect female endurance and behavior. Physiol Behav 2018; 205:44-50. [PMID: 30267737 DOI: 10.1016/j.physbeh.2018.09.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 08/28/2018] [Accepted: 09/17/2018] [Indexed: 12/25/2022]
Abstract
The function of central nervous system (CNS) processes is highly dependent on iron containing enzymes and proteins. Therefore, even mild iron deficiency (ID) may result in decreased endurance, increased irritability and withdrawal behavior among women. The current study was designed to assess the effects of iron status on perceived energy level along with its electroencephalographical (EEG) correlates and cognitive capacity of young women, since this group is at particular risk of experiencing depleted iron stores and iron deficiency anemia. The study group consisted of 23 non-anemic women of reproductive age (20-32 years) during their follicular phase of menstrual cycle. All participants were moderately physically active with a mean weekly energy expenditure of 1110 ± 450 Metabolic Equivalent of Task per minute-(MET/min). The group's electroencephalographic (EEG) alpha asymmetry and psychometric data - intelligence, anxiety level and temperamental traits (activity, briskness, sensory sensitivity, emotional reactivity, perseveration and endurance) were assessed and compared between iron deficient (serum ferritin <12 μg/l) and iron sufficient (serum ferritin ≥12 μg/l) females. Participants with depleted iron stores reported lower levels of activity (p = .004; partial η2 = 0.34) and endurance (p = .038, partial η2 = 0.25), temperamental traits, and presented increased relative left EEG alpha activity in prefrontal regions (p = .004; partial η2 = 0.63), which is a characteristic EEG pattern for withdrawal tendencies. Iron-depleted females did not differ in anxiety and general intelligence scores from those which were iron sufficient, however needed more time (median difference: 3 min, p = .004; partial η2 = 0.53) to complete an administered intelligence test, which may reflect lowered endurance during a cognitive-demanding task. These data provide proof that that even mild iron deficiency may be connected with CNS function and lead to decreased endurance, or at least cognitive endurance, which may be a risk-factor for mood disorders. Therefore, more attention should be paid to preventing even mild iron deficiency, particularly among young women.
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Affiliation(s)
- Inga Dziembowska
- Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń; Curie - Skłodowskiej 9, Bydgoszcz 85-094, Poland.
| | - Justyna Kwapisz
- Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń; Curie - Skłodowskiej 9, Bydgoszcz 85-094, Poland
| | - Paweł Izdebski
- Institute of Psychology, Kazimierz Wielki University in Bydgoszcz, Leopolda Staffa 1, Bydgoszcz 85-867, Poland
| | - Ewa Żekanowska
- Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń; Curie - Skłodowskiej 9, Bydgoszcz 85-094, Poland
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Associations Between the Dopamine D4 Receptor and DAT1 Dopamine Transporter Genes Polymorphisms and Personality Traits in Addicted Patients. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15102076. [PMID: 30248905 PMCID: PMC6211112 DOI: 10.3390/ijerph15102076] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/17/2018] [Accepted: 09/19/2018] [Indexed: 11/17/2022]
Abstract
Many factors are involved in addiction. The dopaminergic system is thought to be the key element in this process. The mesolimbic dopamine system is a crucial element in the reward system. Changes in this system are thought to be leading to substance use disorders and dependence. Therefore, for our study we chose an analysis of two polymorphisms in genes (Variable Number of Tandem Repeats in DRD4 and DAT1) responsible for dopaminergic transmission, which might be implicated in the scores of personality traits measured by the NEO-FFI test. The study group consisted of 600 male volunteers—299 addicted subjects and 301 controls. Both groups were recruited by psychiatrists; in the case group addiction was diagnosed; in the controls a mental illness was excluded. In both groups the same psychometric test and genotyping by the PCR VNTR method were performed. The results were investigated by a multivariate analysis of the main effects ANOVA. In the presented study no DRD4 main effects were found for any of the analyzed traits but the DRD4 main effects approximated to the statistical significance for the extraversion scale. However, no DAT1 main effects were found for any of the analyzed traits but the DAT1 main effects approximated to the statistical significance for the agreeability scale.These associations open new possibilities for addiction research.
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Regulative theory of temperament versus affective temperaments measured by the temperament evaluation of Memphis, Pisa, Paris and San Diego Auto-questionnaire (TEMPS-A): a study in a non-clinical Polish sample. CURRENT ISSUES IN PERSONALITY PSYCHOLOGY 2017. [DOI: 10.5114/cipp.2017.65847] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Oniszczenko W, Rybakowski JK, Dragan WŁ, Grzywacz A, Samochowiec J. The ADH gene cluster SNP rs1789891 and temperamental dimensions in patients with alcohol dependence and affective disorders. Scand J Psychol 2015; 56:420-7. [PMID: 26013422 DOI: 10.1111/sjop.12223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 04/02/2015] [Indexed: 11/29/2022]
Abstract
This study had three objectives: (1) to assess the relationship between the single nucleotide polymorphism (SNP) rs1789891 in the alcohol dehydrogenase gene cluster and alcohol dependence and affective disorders; (2) to assess the differences in the Regulative Theory of Temperament (RTT) traits between an alcohol dependent group, an affective disorders group, and a healthy group; and (3) to assess the relationship between rs1789891 and temperament traits in a healthy group, taking into account the interaction of genotype and sex. The SNP rs1789891 was genotyped in a group of 194 alcohol dependent men, aged 21 to 71 years; 137 patients with affective disorders, including 51 males and 86 females, aged 19 to 85 years; and a group of 207 healthy individuals, including 89 males and 118 females, aged 18 to 71 years. Temperament traits (briskness, perseveration, sensory sensitivity, emotional reactivity, endurance, and activity) were assessed in all groups using the Formal Characteristics of Behaviour-Temperament Inventory. The comparative analysis of genotypic frequencies showed no significant differences between patients with alcoholism or affective disorders and those in the control group. Alcohol dependent men and the affective disorder group were characterised by higher levels of emotional reactivity (p-value 1.4e-5 and 9.84e-7, respectively) and lower levels of briskness, sensory sensitivity, endurance, and activity (p-value from 3.76e-8 to 0.012) when compared to the healthy group. The rs1789891 polymorphism was associated with briskness (p = 0.02), sensory sensitivity (p = 0.036), and activity (p = 0.049). None of the results were statistically significant after Bonferroni correction.
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Affiliation(s)
| | - Janusz K Rybakowski
- Department of Adult Psychiatry, Poznań University of Medical Sciences, Poznań, Poland
| | | | - Anna Grzywacz
- Department of Psychiatry, Pomeranian Medical University, Szczecin, Poland
| | - Jerzy Samochowiec
- Department of Psychiatry, Pomeranian Medical University, Szczecin, Poland
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From Twins to Genetic Polymorphisms: Behavioral Genetic Research in Poland. Twin Res Hum Genet 2014; 17:390-6. [DOI: 10.1017/thg.2014.45] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Behavioral genetic research has been conducted at the University of Warsaw for the past 20 years. The work done at the University focuses primarily on the origins of individual differences in temperament and other personality traits. In particular, research is directed toward the traits postulated in the Regulative Theory of Temperament. We also focused on the heritability of socio-political attitudes, risk factors for human health, and post-traumatic stress disorder. The majority of the research that has been carried out is grounded in twin and family studies, although recent work based on molecular techniques has also been developed. This article reviews the most important directions and findings of behavioral genetics research at the University of Warsaw.
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