Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2005-6-15
pubmed:abstractText
Genetics and environment contribute to the development of obesity, in both humans and rodents. However, the potential interaction between genes important in energy balance, strain background, and dietary environment has been only minimally explored. We investigated the effects of genetic ablation of melanin-concentrating hormone (MCH), a neuropeptide with a key role in energy balance, with chow and a high-fat diet (HFD) in two different mouse strains, one obesity-prone (C57BL/6) and the other obesity-resistant (129). Substantial differences were seen in wild-type (WT) animals of different strains. 129 animals had significantly lower levels of spontaneous locomotor activity than C57BL/6; however, 129 mice gained less weight on both chow and HFD. In both strains, deletion of MCH led to attenuated weight gain compared with WT counterparts, an effect secondary to increased energy expenditure. In both strains, feeding a HFD led to further increases in energy expenditure in both WT and MCH-KO mice; however, this increase was more pronounced in 129 mice. In addition, mice lacking MCH have a phenotype of increased locomotor activity, an effect also seen in both strains. The relative increase in activity in MCH(-/-) mice is modest in animals fed chow but increases substantially when animals are placed on HFD. These studies reinforce the important role of MCH in energy homeostasis and indicate that MCH is a plausible target for antiobesity therapy.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0363-6119
pubmed:author
pubmed:issnType
Print
pubmed:volume
289
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
R117-24
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:15731402-Animals, pubmed-meshheading:15731402-Body Composition, pubmed-meshheading:15731402-Body Weight, pubmed-meshheading:15731402-Diet, pubmed-meshheading:15731402-Disease Susceptibility, pubmed-meshheading:15731402-Eating, pubmed-meshheading:15731402-Energy Metabolism, pubmed-meshheading:15731402-Genetic Predisposition to Disease, pubmed-meshheading:15731402-Glucose Tolerance Test, pubmed-meshheading:15731402-Hypothalamic Hormones, pubmed-meshheading:15731402-Insulin, pubmed-meshheading:15731402-Leptin, pubmed-meshheading:15731402-Melanins, pubmed-meshheading:15731402-Mice, pubmed-meshheading:15731402-Mice, Inbred C57BL, pubmed-meshheading:15731402-Mice, Inbred Strains, pubmed-meshheading:15731402-Mice, Knockout, pubmed-meshheading:15731402-Motor Activity, pubmed-meshheading:15731402-Obesity, pubmed-meshheading:15731402-Oxygen Consumption, pubmed-meshheading:15731402-Pituitary Hormones, pubmed-meshheading:15731402-Species Specificity, pubmed-meshheading:15731402-Thermogenesis
pubmed:year
2005
pubmed:articleTitle
Mice with MCH ablation resist diet-induced obesity through strain-specific mechanisms.
pubmed:affiliation
Joslin Diabetes Center, Boston, Massachusetts, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural