Investigation of second to fourth finger length ratio (2D:4D) in patients with bipolar disorder
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
;
42(6): 617-620, Nov.-Dec. 2020. tab
Artículo
en Inglés
| LILACS
| ID: biblio-1132144
ABSTRACT
Objective:
The etiology of bipolar disorder has yet to be fully elucidated, but differences in sex hormones have been suggested to play a role in its pathogenesis. An easily assessed marker of prenatal androgen exposure is the second-to-fourth-digit ratio (2D4D) of the hand. In this study, we aimed to compare the 2D4D ratio of patients with bipolar disorder to that of healthy controls.Methods:
Seventy patients with bipolar disorder and 70 healthy controls, matched for age and sex, were included in the study. Finger lengths were measured from the palmar digital crease to the tip using a digital vernier caliper.Results:
Patients with bipolar disorder had considerably higher right-hand 2D4D ratios compared to controls. Both the right and left 2D4D ratios of male patients were significantly greater than those of males in the control group. Female patients showed no differences in right or left 2D4D ratio compared to healthy controls.Conclusion:
These findings suggest that a high 2D4D digit ratio of right hand is associated with the presence of bipolar disorder in males. Further large-scale, prospective studies are needed to explain the validity of this marker and its relationship with bipolar disorder.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Trastorno Bipolar
Tipo de estudio:
Estudio observacional
/
Factores de riesgo
Límite:
Femenino
/
Humanos
/
Masculino
/
Embarazo
Idioma:
Inglés
Revista:
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
Asunto de la revista:
Psiquiatria
Año:
2020
Tipo del documento:
Artículo
País de afiliación:
Turquía
Institución/País de afiliación:
Süleyman Demirel University Medicine Faculty/TR
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