mortality/aging
• no mice are present at 6 weeks
|
• while born in normal Mendelian ratios, fewer than expected mice are present at weaning
|
homeostasis/metabolism
hypoglycemia
(
J:164354
)
• beginning at P5 and progressing with age
|
• mice exhibit increased insulin sensitivity compared with wild-type mice
• however, glucose tolerance and insulin serum levels are normal
|
cellular
• mouse embryonic fibroblast (MEF) exhibit decreased cell growth compared with wild-type cells
• however, MEFs exhibit increased proliferation in response to IGF-1
|
growth/size/body
• beginning at 1 week of age and progressing with age
|
adipose tissue
• relative to body weight
|
cardiovascular system
liver/biliary system
• small in size
|
respiratory system
• lung epithelium is poorly developed with severely dilated airways and fewer red blood cells compared to in wild-type mice
|
muscle