Inbred Strains
of Mice: PBB
Inbr: F20+. Black. Genet:
a. Origin: P. C. Bailey from multicoloured
pet shop stock, in about 1972.
Characteristics
Become obese on a standard diet. Maximum body weight of about 65-75g is
achieved at about 12 months. Blood glucose normal, but glucose tolerance
abnormal. Serum insulin elevated. No histological abnormalities of pancreatic
islets seen, although mild fatty infiltration of the liver is common.
Breeding performance good and life-span normal (18-22 months). Obesity
may be analogous to mature onset obesity in man (
Hunt
et al., 1972., 1972), and equivalent in many respects to the mutants
ob (obese) and
Ay (yellow)
and the NZO inbred strain. The diabetes in this case has a polygenic mode
of inheritance (
Hunt et al., 1976., 1976).
Hunt C. E.,
Lindsey J. R., MaxField L. M., and Fox O. J. (1972) Obesity in a new strain
of mouse. Fed. Proc. 31, 244.
Hunt C. E.,
Lindsey J. R., and Walkley S. U. (1976) Animal models of diabetes and
obesity, including the PBB/Ld mouse. Fed. Proc. 35, 1206-1217.
INBRED STRAINS OF MICE
Updated 9 Apr. 1998
Michael FW
Festing
MRC Toxicology Unit, Hodgkin Building,
University of Leicester,
UK