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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Pyytm1Mws
targeted mutation 1, Mark W Sleeman
MGI:3771716
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Pyytm1Mws/Pyytm1Mws involves: C57BL/6J MGI:3771731


Genotype
MGI:3771731
hm1
Allelic
Composition
Pyytm1Mws/Pyytm1Mws
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pyytm1Mws mutation (0 available); any Pyy mutation (9 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• lumbar vertebral bodies exhibit a 35% reduction in trabecular bone volume and a 28% reduction in trabecular number compared to in wild-type mice
• in a compression test on the L5 vertebrae of a 9 month old mouse, the maximal load is decreased 33% (13.62+/-1.56 N compared to 20.45+/-2.77 N in wild-type mice)
• mice are more sensitive to loss of bone mass, especially in the lumbar vertebra, due to estrogen-depletion that is not accompanied by weight loss than wild-type mice
• bone mineral density and bone mineral content are decreased by 5% to 10% compared to in wild-type mice
• bone mineral density and bone mineral content are decreased by 5% to 10% compared to in wild-type mice
• however, there is no change in serum measurements of dietary components that might affect bone mineralization
• mice maintain a reduced bone mineral density when fed a high-fat diet despite weight gain
• mice are more sensitive to loss of bone mass, especially in the lumbar vertebra, due to estrogen-depletion that is not accompanied by weight loss than wild-type mice

growth/size/body
N
• mice exhibit normal body weight when fed a standard diet
• when fed a high fat diet, female, but not male, mice exhibit an increase in body fat mass with a decrease in lean mass
• when fed a high-fat diet, mice exhibit a small increase in body weight compared to wild-type mice (11% increase in males and 21% increased in females)

adipose tissue
• when fed a high fat diet, female, but not male, mice exhibit an increase in body fat mass with a decrease in lean mass

behavior/neurological
N
• mice exhibit normal food intake when fed a standard diet





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last database update
07/05/2024
MGI 6.24
The Jackson Laboratory