BACKGROUND: Preclinical and clinical studies suggest that lowered brain serotonin neurotransmission may contribute to the pathophysiology of bulimia nervosa (BN). The aim of our study was to test this hypothesis by examining the psychological effects of a dietary-induced impairment in serotonin activity in subjects known to be at risk for manifestation of the clinical syndrome of BN.
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Symptomatic relapse in bulimia nervosa following acute tryptophan depletion.
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Self-destructiveness and serotonin function in bulimia nervosa.
Studies have linked bulimia nervosa (BN) to alterations in brain serotonin (5-hydroxytryptamine: 5-HT) activity and to heightened propensity for parasuicidality and self-injuriousness.
The coincidence of self-destructiveness and 5-HT abnormality in BN is of interest, given documentation (in various populations) of an inverse association between 5-HT activity and potential for self-ha… |
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Regional cerebral glucose metabolism in bulimia nervosa.
OBJECTIVE: The authors' purpose in this study was to further delineate the character of cerebral metabolism in bulimia nervosa and to determine if functional links could be made between regional cerebral metabolism and the symptoms of depression, obsessive-compulsive disorder, and bulimia nervosa.
METHOD: Regional cerebral glucose metabolism was measured by using positron emission to… |
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Lactate and isoproterenol infusions in bulimic patients.
We compared the responses of bulimic subjects to those of panic disorder patients and normal controls during infusions of sodium lactate and isoproterenol in a double-blind, placebo-controlled study. Four of 8 bulimics infused with lactate had panic attacks. Three of 9 bulimics infused with isoproterenol panicked, and 1 bulimic panicked with a placebo infusion.
Although bulimics were… |
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Effects of acute tryptophan depletion on mood in bulimia nervosa.
BACKGROUND: The present study investigated the role of serotonin in the pathophysiology of bulimia nervosa (BN) by studying the affective and appetitive responses of women ill with BN to an acute tryptophan depletion (ATD) paradigm.
METHODS: Twenty-two women with BN and 16 healthy control women (CW) were studied on 2 separate days during the follicular stage of the menstrual cycle. P… |
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Comparison of lactate-induced anxiety in bulimic patients and healthy controls.
Clinical symptomatology and diagnostic interview studies suggest that patients with bulimic disorder have some characteristics in common with patients with generalized anxiety disorder or panic disorder. The purpose of this study was to compare sodium lactate-induced physiological responses and anxiety symptoms in hospitalized normal weight bulimic patients and healthy controls. |
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Post-synaptic responsiveness in hypothalamic-pituitary serotonergic pathways is …
Recent pharmacological studies have more precisely characterised the nature of the inhibitory effect of brain serotonin (5-hydroxytryptamine) on feeding behaviour. Thus, the brain sites and receptors involved have been identified, and a possible physiological role of endogenous serotonin in controlling natural patterns of eating and nutrient selection has been defined.
The medial hyp… |
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