Amino Acids, Serotonin, and Body Weight Regulation
This study will assess the behavioral effects of an amino acid mixture thought to influence serotonin function in individuals who have recovered from anorexia nervosa.
Anorexia nervosa is a serious psychiatric disorder resulting in psychosocial distress for patients and their families, potentially severe medical consequences, and substantial long-term mortality. A major emphasis in current therapeutic research in anorexia nervosa is exploration of new interventions to stabilize recovery and prevent relapse. Although the etiology of anorexia nervosa is unknown, altered regulation of the neurotransmitter serotonin in the central nervous system is thought to contribute to preoccupation with body shape and weight, dysregulated eating patterns, persistent anxiety, and frequent mood fluctuations. The goal of this exploratory project is to assess the behavioral effects of an amino acid mixture thought to influence serotonin function in individuals who have recovered from anorexia nervosa. It is hypothesized that this brief intervention will help diminish residual eating disorder symptoms.
All participants in this crossover study will attend eight sessions over a 9-week period. Participants will spend approximately 2 weeks in each phase, during which they will receive an amino acid mixture and the control condition.
Allocation: Randomized, Control: Placebo Control, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
Branched-chain amino acids
Beth Israel Deaconess Medical Center
National Institute of Mental Health (NIMH)
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00343928
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Amino Acids, Branched-chain
Amino acids which have a branched carbon chain.
Multiple Acyl Coenzyme A Dehydrogenase Deficiency
An autosomal recessive disorder of fatty acid oxidation, and branched chain amino acids (AMINO ACIDS, BRANCHED-CHAIN); LYSINE; and CHOLINE catabolism, that is due to defects in either subunit of ELECTRON TRANSFER FLAVOPROTEIN or its dehydrogenase, electron transfer flavoprotein-ubiquinone oxidoreductase (EC 184.108.40.206).
Maple Syrup Urine Disease
An autosomal recessive inherited disorder with multiple forms of phenotypic expression, caused by a defect in the oxidative decarboxylation of branched-chain amino acids (AMINO ACIDS, BRANCHED-CHAIN). These metabolites accumulate in body fluids and render a "maple syrup" odor. The disease is divided into classic, intermediate, intermittent, and thiamine responsive subtypes. The classic form presents in the first week of life with ketoacidosis, hypoglycemia, emesis, neonatal seizures, and hypertonia. The intermediate and intermittent forms present in childhood or later with acute episodes of ataxia and vomiting. (From Adams et al., Principles of Neurology, 6th ed, p936)
The lack or loss of APPETITE accompanied by an aversion to food and the inability to eat. It is the defining characteristic of the disorder ANOREXIA NERVOSA.
A PYRIDOXAL PHOSPHATE containing enzyme that catalyzes the reversible transamination of branched-chain AMINO ACIDS to 2-oxoglutarate.
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