Tyrosine supplementation as an adjunct treatment in anorexia nervosa – a noradrenergic repletion hypothesis
Author(s)
Hart, Melissa
Wilcken, Bridget
T. Williams, Lauren
Sibbritt, David
Nunn, Kenneth Patrick
Griffith University Author(s)
Year published
2013
Metadata
Show full item recordAbstract
Anorexia nervosa (AN) is accompanied by an increased frequency of pre-morbid anxiety. Anxiety disorders are associated with increased brain activity of catecholamines, especially noradrenaline. It has been hypothesized that noradrenergic dysregulation may be a major factor in the causation of AN. In this article, we explore this hypothesis and how it might account for the reduction of anxiety found in starvation, the increase in anxiety found with re-feeding, and thus the reinforcement of anxiety by re-feeding. We propose that alleviation of this dysregulation through the noradrenaline precursor (tyrosine) supplementation, ...
View more >Anorexia nervosa (AN) is accompanied by an increased frequency of pre-morbid anxiety. Anxiety disorders are associated with increased brain activity of catecholamines, especially noradrenaline. It has been hypothesized that noradrenergic dysregulation may be a major factor in the causation of AN. In this article, we explore this hypothesis and how it might account for the reduction of anxiety found in starvation, the increase in anxiety found with re-feeding, and thus the reinforcement of anxiety by re-feeding. We propose that alleviation of this dysregulation through the noradrenaline precursor (tyrosine) supplementation, leading to saturation of supply, may alleviate some of the pathological changes found in AN. We consider how the hypothesis might be investigated. The success of tyrosine supplementation would have important implications from theoretical, research and clinical perspectives.
View less >
View more >Anorexia nervosa (AN) is accompanied by an increased frequency of pre-morbid anxiety. Anxiety disorders are associated with increased brain activity of catecholamines, especially noradrenaline. It has been hypothesized that noradrenergic dysregulation may be a major factor in the causation of AN. In this article, we explore this hypothesis and how it might account for the reduction of anxiety found in starvation, the increase in anxiety found with re-feeding, and thus the reinforcement of anxiety by re-feeding. We propose that alleviation of this dysregulation through the noradrenaline precursor (tyrosine) supplementation, leading to saturation of supply, may alleviate some of the pathological changes found in AN. We consider how the hypothesis might be investigated. The success of tyrosine supplementation would have important implications from theoretical, research and clinical perspectives.
View less >
Journal Title
Advances in Eating Disorders
Volume
1
Issue
2
Subject
Nutrition and Dietetics not elsewhere classified
Medical Physiology
Public Health and Health Services
Psychology