Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0020505 (hyperphagia)
 6,116 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Reported excessive eating was examined in children referred for developmental delay to our multidisciplinary diagnostic center and cause hypotheses were generated. Thirteen children were evaluated prospectively using a nutrition assessment, The Eating Behavior Questionnaire, the Achenbach Child Behavior Profile, and their multidisciplinary developmental evaluation. The children ate excessively but were not obese. Commonalities included being in foster care, prenatal drug exposure, and abnormally withdrawn and/or aggressive behavior. Nonobese hyperphagia appears to require emotional and behavioral assessment and dietary management. Hypotheses include prenatal drug exposure and a possible causal association with emotional and behavioral problems.
Ment Retard 1994 Jun
PMID:Chronic overeating without obesity in children with developmental disabilities: description of a new syndrome. 808 70

Eleven individuals with Prader-Willi syndrome and 10 control subjects who had mental retardation due to other causes (with and without overeating histories) participated in two experiments on food preferences. They gave preference rankings for various foods, then chose between a small amount of their most preferred food and an alternative choice of a larger amount of mixed-preference foods (Experiment 1) or an alternative choice of a larger amount of their least preferred food (Experiment 2). Unlike overweight-prone control subjects who selected sweet food over a larger quantity of unpreferred food, subjects with Prader-Willi syndrome selected preferred items only over least-preferred items (Experiment 2) but not over mixed-preference items (Experiment 1). Implications for treatment were discussed.
Am J Ment Retard 1996 Sep
PMID:Food preferences among individuals with and without Prader-Willi syndrome. 888 73

Although hyperphagia is a salient feature of Prader-Willi syndrome, researchers have yet to move beyond food preference and taste studies to examine more troublesome food-seeking behaviors in this population (e.g., eating food from the trash, eating inappropriate or unpalatable food combinations). Visually based tasks were used to examine willingness to eat contaminated food and various odd food combinations in 50 adolescents and adults with Prader-Willi syndrome, 42 IQ-matched participants with mental retardation, and 50 control participants without mental retardation. Although participants with Prader-Willi syndrome showed understandings similar to those of control participants about the purpose and fate of food, they endorsed eating contaminated food as well as highly unusual edible and inedible food combinations. Findings suggest novel adjuncts to traditional dietary approaches in the Prader-Willi syndrome population. Implications are also discussed for future research on food ideation in this population.
Ment Retard 2000 Apr
PMID:Contaminated and unusual food combinations: what do people with Prader-Willi syndrome choose? 1080 6

Advances in genetic research have led to an increased understanding of genotype-phenotype relationships. Excessive eating and weight gain characteristic of Prader-Willi syndrome (PWS) have been the understandable focus of much of the research. The intense preoccupation with food, lack of satiation, and incessant food seeking are among the most striking features of PWS. It has become increasingly clear that the behavioral phenotype of PWS also includes symptoms similar to obsessive compulsive disorder, which in all probability interact with the incessant hunger and lack of satiation to engender the intense preoccupation and food seeking behavior that is characteristic of this disorder. Several lines of evidence suggest that genetic material on chromosome 15 may alter synthesis, release, metabolism, binding, intrinsic activity, or reuptake of specific neurotransmitters, or alter the receptor numbers and/or distribution involved in modulating feeding. Among the likely candidates are GABAnergic, serotonergic, and neuropeptidergic mechanisms. This review summarizes what is known about the appetitive behavior and compulsivity in PWS and discusses the possible mechanisms underlying these behaviors. MRDD Research Reviews 2000;6:125-130.
Ment Retard Dev Disabil Res Rev 2000
PMID:Appetitive behavior, compulsivity, and neurochemistry in Prader-Willi syndrome. 1089 5

Prader-Willi syndrome is a multisystem neurogenetic obesity disorder with behavioral manifestations, including hyperphagia, compulsive behavior, self-injury, and mild to moderate mental retardation. In an 8-week open-label study, we evaluated adjunctive therapy with the anticonvulsant topiramate in 8 adults with Prader-Willi syndrome. Appetite was measured by a 1-hour access to food four times throughout the study and quantified with a visual analogue scale. Topiramate did not significantly change calories consumed, Body Mass Index, or increase self-reported appetite. In addition, there were no significant changes in compulsions. Surprisingly, topiramate treatment resulted in a clinically significant improvement in the self-injury (i.e., skin-picking) that is characteristic of this syndrome. Potential benefits of topiramate for self-injury should be evaluated further in controlled trials.
Am J Ment Retard 2004 Jul
PMID:Effects of topiramate in adults with Prader-Willi syndrome. 1517 17