growth/size/body
• become significantly heavier by 18 weeks of age when fed a normal chow diet ad libitum
• body weight gain is more prominent when fed a high fat diet ad libitum
• when food intake is restricted to match mean food intake of wild-type controls body weight is not significantly different from wild-type controls
|
• become significantly heavier when fed a high fat diet compared to wild-type controls
|
adipose tissue
• increase in both subcutaneous and intraabdominal fat pad masses
|
• epididymal adipocytes are increased in size
|
behavior/neurological
N |
• no significant difference in home cage activity levels compared to wild-type controls
|
• seen on both normal chow and high fat diets
• seen at 24 weeks of age but not before 14 weeks of age
• impairment in reduction in food intake following peripheral or central leptin administration
|
• feeding after a fast is increased at 14 weeks of age
|
homeostasis/metabolism
N |
• no significant difference in oxygen consumption or mean respiratory exchange ratios compared to wild-type controls
|
• become significantly heavier when fed a high fat diet compared to wild-type controls
|
• in mice fed a normal chow diet ad libitum
• when food intake is restricted to match mean food intake of wild-type controls glucose tolerance is similar to wild-type controls
|
• in mice fed a normal chow diet ad libitum
• when food intake is restricted to match mean food intake of wild-type controls insulin sensitivity is similar to wild-type controls
|
• increase in hepatic triglyceride levels
|
liver/biliary system
• increase in hepatic triglyceride levels
|
nervous system
• after refeeding there is no significant increase in the percentage of p-CREB-positive PRLH neurons in the ventrolateral medulla oblongota or in the dorsomedial hypothalamus suggesting impaired activation of these neurons
|
Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
obesity | DOID:9970 |
OMIM:601665 |
J:144729 |