Golden spiny mice, which inhabit rocky deserts and do not store food, must therefore employ physiological means to cope with periods of food shortage. Here we studied the physiological means used by golden spiny mice for conserving energy during food restriction and refeeding and the mechanism by which food consumption may influence thermoregulatory mechanisms and metabolic rate. As comparison,...

In order to determine the effects of selective food restriction on subsequent food intake and cravings, participants were randomly assigned to one of three conditions: carbohydrate-restriction, protein-restriction, or control (no restriction). Participants in the restriction conditions were asked to restrict their intake of either complex carbohydrates or animal proteins for 3 days, before comi...

Activity-based anorexia (ABA) is a widely used animal model for identifying the biological basis of excessive exercise and starvation, 2 hallmarks of anorexia nervosa (AN). Anxiety is correlated with exercise in AN. Yet the anxiety level of animals in ABA has not been reported. We asked: Does food restriction as part of ABA induction change the anxiety level of animals? If so, is the degree of ...

Gutman, Roee, Itzhak Choshniak, and Noga Kronfeld-Schor. Defending body mass during food restriction in Acomys russatus: a desert rodent that does not store food. Am J Physiol Regul Integr Comp Physiol 290: R881–R891, 2006. First published November 10, 2005; doi:10.1152/ajpregu.00156.2005.—Golden spiny mice, which inhabit rocky deserts and do not store food, must therefore employ physiological ...

Food resources play an important role in the regulation of animals' physiology and behavior. We investigated the effect of short-term food restriction on metabolic thermogenesis of Chinese bulbuls (Pycnonotus sinensis) by measuring changes in body mass, body fat, basic metabolic rate (BMR), and organ mass of wild-caught Chinese bulbuls from Wenzhou, China. Short-term food restriction induced a ...

Effects of the mitochondria-targeted antioxidant SkQ1 and food restriction are compared. In both cases there is a remarkable increase in the median lifespan of organisms belonging to many different taxonomic ranks. Essentially, both SkQ1 treatment and restriction in food intake retard development of numerous adverse traits of senescence. This relationship could be predicted assuming that SkQ1 a...

Introduction: Natural rewards are essential for survival. However, drug-seeking behaviors can be maladaptive and endanger survival. The present study was conducted to enhance our understanding of how animals respond to food and morphine as natural and drug rewards, respectively, in a conditioned place preference (CPP) paradigm. Methods: We designed a protocol to induce food CPP and compare it ...

Individuals of species inhabiting temperate and boreal latitudes optimize the timing of energetically costly processes by curtailing nonessential energetically demanding processes when environmental conditions are not favourable. One proximate environmental variable used to fine-tune moment-to-moment changes in reproductive physiology and behaviour is food intake. The neuroendocrine mechanisms ...

BACKGROUND This research evaluated the effects of financial incentives and purchase restrictions on food purchasing in a food benefit program for low income people. METHODS Participants (n=279) were randomized to groups: 1) Incentive- 30% financial incentive for fruits and vegetables purchased with food benefits; 2) Restriction- no purchase of sugar-sweetened beverages, sweet baked goods, or ...