homeostasis/metabolism
• hyperphenylalaninemia
• however, no evidence of maternal phenylketonuria
|
• insulin levels are somewhat elevated in fasted mutants and do not rise to the same degree as wild-type after glucose challenge
|
• about half of the homozygotes exhibit mild glucose intolerance on the CD-1 background, while the mutants on the C57BL/6J background are more glucose-tolerant
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ketoaciduria
(
J:78257
)
• nonspecific ketonuria
|
vision/eye
• cataracts are usually unilateral and are detected as early as P12, but on average at about 24 weeks of age
• cataracts usually initiate in the posterior cortex of the lens displaying characteristic Morgagnian granules of degenerated lens fibers
• Background Sensitivity: 18.2% of mutants on the CD-1 background develop cataracts, while the incidence of cataract formation is reduced on the C57BL/6J background
|
• predisposition to the development of slight microphthalmia
|
renal/urinary system
ketoaciduria
(
J:78257
)
• nonspecific ketonuria
|
pigmentation
belly spot
(
J:78257
)
• fewer than 10% exhibit an unpigmented belly spot when crossed onto the non-Agouti C57BL/6J background
|
• mutants frequently exhibit a mild hypopigmentation relative to wild-type when crossed onto the non-Agouti C57BL/6J background
|
integument
belly spot
(
J:78257
)
• fewer than 10% exhibit an unpigmented belly spot when crossed onto the non-Agouti C57BL/6J background
|