do Vale Sónia, Martin Martins Joao, Fagundes Maria Joao, do Carmo Isabel
Department of Endocrinology, Santa Maria Hospital, Lisbon, Portugal.
Neuro Endocrinol Lett. 2011;32(4):442-8.
Dehydroepiandrosterone-sulphate (DHEAS) physiologic relevance remains controversial. However, several central nervous system and behavioural effects of DHEAS have been described. We explored the relation between DHEAS and both pituitary-adrenal axis reactivity and personality in human subjects.
We studied 120 consecutive patients assisted at the out patient endocrine department of a public central hospital before medical treatment. Personality was evaluated with the Minnesota Multiphasic Personality Inventory (MMPI) and the pituitary-adrenal axis reactivity was assessed with the CRH test.
Baseline DHEAS was inversely related to peak/basal cortisol (parcial r=-0.454, p<0.05) response to CRH infusion. DHEAS reactivity in the CRH test was directly related to the Deviant Behaviour triad (BD) (r=0.257, p<0.05) and type A personality (AP) (r=0.295, p<0.05). Basal ACTH was directly related to baseline DHEAS (r=0.366, p<0.001) and together with age and gender explained 34% of DHEAS variability.
DHEAS may be a protective factor against an excessive cortisol response when people are under stress situations. Personality may be related to DHEAS reactivity.
硫酸脱氢表雄酮(DHEAS)的生理相关性仍存在争议。然而,已有多项关于DHEAS对中枢神经系统和行为影响的描述。我们探讨了人类受试者中DHEAS与垂体 - 肾上腺轴反应性及人格之间的关系。
我们研究了120例在一家公立中心医院门诊内分泌科接受治疗前的连续患者。采用明尼苏达多相人格问卷(MMPI)评估人格,通过促肾上腺皮质激素释放激素(CRH)试验评估垂体 - 肾上腺轴反应性。
基线DHEAS与CRH输注后皮质醇峰值/基础值反应呈负相关(偏相关系数r = -0.454,p < 0.05)。CRH试验中DHEAS的反应性与异常行为三联征(BD)(r = 0.257,p < 0.05)和A型人格(AP)(r = 0.295,p < 0.05)直接相关。基础促肾上腺皮质激素(ACTH)与基线DHEAS直接相关(r = 0.366,p < 0.001),年龄和性别与基础ACTH共同解释了DHEAS变异性的34%。
当人们处于应激状态时,DHEAS可能是防止皮质醇过度反应的保护因素。人格可能与DHEAS反应性相关。