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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Neuroendocrine responses to a glucose challenge in substance users with high and low levels of aggression, impulsivity, and antisocial personality.

Plasma glucose concentrations, and plasma prolactin and cortisol responses to a 5-hour oral glucose tolerance test (OGTT) in 37 substance abusers, were examined to assess the relationship between varying degrees of antisocial personality, impulsivity, and aggressiveness and measures of endocrine function. Childhood and presenting aggression, impulsivity and antisocial personality features were evaluated by several self-report questionnaires. Those with high scores for psychopathic deviance (MMPI) differed in glucose levels following OGTT from those with low scores. Lower cortisol nadir levels were associated with higher scores on measures of antisocial personality and aggressiveness. Also, prolactin response to glucose was attenuated relative to baseline levels in the more antisocial and aggressive subjects. The results indicate that substance abusers with high levels of self-reported antisocial personality and aggressive behavior have altered neuroendocrine responses to glucose challenge, although there was no evidence of hypoglycemia. No one personality or behavioral trait, as measured by our test battery, more strongly predicted neuroendocrine responses to glucose administration. Thus, our data partially support other reports of altered neuroendocrine responses to stressful challenges in aggressive/antisocial individuals.[1]


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