Biology of Sport
eISSN: 2083-1862
ISSN: 0860-021X
Biology of Sport
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without publication fees
1/2024
vol. 41
 
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abstract:
Original paper

Association between polymorphism rs6295 of HTR1A serotonin receptor gene and personality traits among athletes of combat sport

Kinga Humińska-Lisowska
1, 2
,
Jolanta Chmielowiec
3
,
Krzysztof Chmielowiec
3
,
Aleksandra Strońska
4
,
Paweł Cięszczyk
1
,
Michał Spieszny
2
,
Jolanta Masiak
5
,
Milena Lachowicz
1
,
Olga Surała
6
,
Anna Grzywacz
1

  1. Faculty of Physical Education, Gdansk University of Physical Education and Sport, K.Górskiego St. 1, 80-336 Gdansk, Poland
  2. Institute of Sports Sciences, the University of Physical Education in Krakow, 31-541 Kraków, Poland
  3. Department of Hygiene and Epidemiology, Collegium Medicum, University of Zielona Góra, 28 Zyty St., 65-046 Zielona Góra, Poland
  4. Independent Laboratory of Health Promotion, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland
  5. Neurophysiological Independent Unit, Department of Psychiatry, Medical University of Lublin, 1 Aleje Racławickie St., 20-059 Lublin, Poland
  6. Institute of Sport - National Research Institute, 01-982 Warsaw, Poland
Biol Sport. 2024;41(1):295–303
DOI: https://doi.org/10.5114/biolsport.2024.129478
Online publish date: 2023/09/20
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HTR1A (5-hydroxytryptamine receptor 1A) and its polymorphic variants are highly important for athletes in different aspects, allowing us to hypothesize their biological influences. Hence, to investigate at least part of the relationship mentioned in the case literature, it was decided to study the association of the selected HTR1A polymorphism with personality traits measured by the Temperament and Character Inventory (TCI). The participants consisted of 250 mixed martial arts (combat sport) athletes and 209 healthy male participants (control group). The personality traits were measured for the Revised Temperament and Character Inventory (TCI-R). Genetic material was isolated from whole blood collected from patients, and then all samples were genotyped using the real-time PCR method. Statistical analysis was performed using a 2×3 factorial ANOVA. The research revealed a statistically significant effect of a complex factor of rs6295 of the HTR1A serotonin receptor gene with combat sport/control and with Novelty Seeking (F2,453 = 6.126; p = 0.0024; η2 = 0.026) and Harm Avoidance (F2,453 = 3.709; p = 0.0252; η2 = 0.016). The presence of the HTR1A GG genotype (rs6295) was found to be associated with higher scores in self-management and lower scores in harm avoidance, indicating genetic predispositions in the strength group towards better results in combat sports.
keywords:

HTR1A, genes, athletes, personality, rs6295, sports predispositions

  
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