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BACKGROUND Activity-based anorexia (ABA) is considered an animal model of anorexia nervosa (AN). In ABA, scheduled feeding together with voluntary access to a running wheel results in increased running wheel activity (RWA), hypophagia, and body weight loss. Previously it was shown that leptin treatment reduced semi-starvation-induced hyperactivity in rats.(More)
Activity-based anorexia (ABA) is considered an animal model of anorexia nervosa. In ABA, scheduled feeding in combination with voluntary wheel running leads to hyperactivity, reduced food intake, severe body weight loss and hypothermia. In this study it was investigated whether hyperactivity in ABA could be reduced by introducing a warm plate (which was(More)
The melanocortin (MC) system is involved in the regulation of energy balance and in the development of obesity. Here we briefly review why we became interested in investigating whether the MC system - more particularly, the increased activity of the MC system - is also involved in disorders of negative energy balance. We provide evidence that suppression of(More)
When rats are given access to a running-wheel in combination with food restriction, they will become hyperactive and decrease their food intake, a paradoxical phenomenon known as activity-based anorexia (ABA). Little is known about the regulation of the hypothalamic neuropeptides that are involved in the regulation of food intake and energy balance during(More)
AgRP is a neuropeptide that stimulates food intake through inhibition of central melanocortin receptors (MCRs). In humans, the non-conservative amino acid substitution Alanine (Ala) 67 Threonine (Thr) has been associated with Anorexia Nervosa and with leanness. In the present study, the cellular distribution, processing and in vitro and in vivo activities(More)
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