homeostasis/metabolism
• increase in brain glutamine levels
|
• increase in serum glutamine levels
|
(J:784)
• mice develop hyperammonemia
(J:2774)
• serum ammonia levels are increased by 58%
(J:23195)
|
• mutants exhibit orotic aciduria that can be treated with various inhibitors such as N-(phosphonoacetyl)-L-aspartate and ornithine but mutants are insensitive to cycloheximide and acivicin
|
• alterations of cerebral metabolites; increase in ammonia, glutamine, alpha-ketoglutarate levels, glucose, and lactate levels in the brain and a decrease in glutamate content, ATP, pyruvate, and coA-SH levels
(J:784)
• mitochondrial NADH/NAD+ ratios are lower than in controls while cytosolic NADH/NAD+ is higher in the brain and liver
(J:784)
• increase in ammonia, alpha-ketoglutarate, and lactate levels and decrease in ATP and pyruvate levels in the liver
(J:784)
• energy metabolism intermediates in both liver and brain are affected by hyperammonemia and sodium benzoate treatment can correct the energy metabolism abnormalities
(J:2774)
|
(J:2774)
• monoamine oxidase-A activities are decreased by 23% and 16% in cerebellum and brainstem, respectively, while monoamine oxidase-B activities are increased by 22%, 20%, and 22% in cerebellum, brainstem, and cerebral cortex, respectively
(J:19848)
• choline acetyltransferase activity is reduced by 63% in cerebral cortex, 53% in thalamus, 36% in striatum, 35% in brainstem and 26% in hippocampus
(J:23195)
• acetylcholine esterase activity is reduced by 28% in the thalamus but not other regions
(J:23195)
|
• hepatic ornithine transcarbamylase activity is less than 10% of controls
|
nervous system
• peripheal-type (mitochondrial) benzodiazepine receptors are increased in density in the brain
(J:21306)
• monoamine oxidase-A activities are decreased by 23% and 16% in cerebellum and brainstem, respectively, while monoamine oxidase-B activities are increased by 22%, 20%, and 22% in cerebellum, brainstem, and cerebral cortex, respectively
(J:19848)
• brain ammonia levels are increased by 77%
(J:23195)
|
• a decrease in choline acetyltransferase-positive neurons is seen throughout the cerebral cortex, septal area, and diagonal band, indicating a loss of forebrain cholinergic neurons
|
endocrine/exocrine glands
• peripheal-type (mitochondrial) benzodiazepine receptors are increased in density in the testis
|
liver/biliary system
• peripheal-type (mitochondrial) benzodiazepine receptors are increased in density in the liver
|
renal/urinary system
• mutants exhibit orotic aciduria that can be treated with various inhibitors such as N-(phosphonoacetyl)-L-aspartate and ornithine but mutants are insensitive to cycloheximide and acivicin
|
• peripheal-type (mitochondrial) benzodiazepine receptors are increased in density in the kidney
|
reproductive system
• peripheal-type (mitochondrial) benzodiazepine receptors are increased in density in the testis
|
behavior/neurological
• perform poorly in a passive avoidance test, with 6 of 11 mice failing to learn to avoid an electrified grid compared to 1 of 12 in the controls
|
Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
ornithine carbamoyltransferase deficiency | DOID:9271 |
OMIM:311250 |
J:784 , J:19848 , J:23195 |