behavior/neurological
N |
• mice exhibit normal novelty-induced and baseline locomotion and normal response to amphetamine and SKF-38393
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Allele Symbol Allele Name Allele ID |
7630403G23RikTg(Th-cre)1Tmd transgene insertion 1, Ted M Dawson MGI:3584380 |
Summary |
9 genotypes |
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• mice exhibit normal novelty-induced and baseline locomotion and normal response to amphetamine and SKF-38393
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• mice exhibit normal novelty-induced and baseline locomotion
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• blunted locomotor response to a moderate dose of amphetamine
• however, mice exhibit normal amphetamine-induced stereotypic behavior and SKF-38393-induced grooming
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• when the allele is inherited maternally, mice nose poke more for 30 Hz stimulation than controls, indicating enhanced motivation
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• mice with a maternally inherited allele show a greater than 50% reduction in peak amplitude of GABAergic currents relative to controls, while current decay kinetics are normal, indicating decreased GABA co-release
• mice with a maternally inherited allele exhibit diminished GABAergic currents at 30 Hz stimulation of ventral tegmental area-to-nucleus accumbens (VTA-to-NAc) terminals compared to controls
• expression of exogenous vesicular GABA transporter (VGAT) within TH+ terminals normalizes optical intracranial self-stimulation in mice with a maternally inherited allele
• however, no changes in optically evoked dopamine release in TH+ VTA-to-NAc terminals is seen in mice with a maternally inherited allele and mice also exhibit normal glutamatergic co-release with optical stimulation of VTA-to-NAc termimals
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• increased levels of norepinephrine observed in striatum in 10-11 month old mice
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• 32% reduction in levels of striatal dopamine observed in 10-11 month old mice
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• increased levels of 5-HT observed in prefrontal cortex in 10-11 month old mice
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Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
Parkinson's disease 1 | DOID:0060367 |
OMIM:168601 |
J:150777 |
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
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|
♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• there are significant reductions in the levels of striatal dopamine (~32%), dihydroxyphenylacetic acid (~46%) and homovanillic acid (~33%) compared to controls at 10-11 months of age
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• norepinephrine levels in the striatum are elevated at 10-11 months of age compared to controls
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• 5-HT levels are elevated in the prefrontal cortex at 10-11 months of age compared to controls
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Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
Parkinson's disease 1 | DOID:0060367 |
OMIM:168601 |
J:150777 |
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
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• less frequent estrus
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• with irregular reproductive cycle
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• reduced productive matings, number of litters, and litter size
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• smaller and fewer liters with increased litter interval
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• Th+ ARC neurons exhibit reduced interburst intervals and enhanced instantaneous burst frequencies, increased variability of Vu and reduced burst strength causing a reduction in both depolarization envelope and spike frequency within a burst compared with wild-type cells
• Th+ ARC neurons exhibit loss of prolactin-evoked tonic excitation unlike wild-type mice
• however, rhythmic activity in the presence of prolactin remains intake
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• some female mice exhibit delayed luteinizing hormone peaks compared with wild-type mice
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• however, female mice exhibit prolactin surges
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• brain weight is 508 +/- 24 mg compared to 571 +/- 8 mg in controls
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• the number of cells is decreased by 25 - 30% and most of the cells lost are tyrosine hydroxylase expressing cells
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• the number of cells is decreased by 31% and by 27% at 1 and 8-12 months of age, respectively, and most of the cells lost are tyrosine hydroxylase expressing cells
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• body weight is reduced by 18 - 30% compared to control mice lacking the cre transgene
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• mutants are able to stay on an accelerating rotorod significantly longer and at higher velocities
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• striatal dopamine and dopamine metabolite levels are significantly reduced compared to controls
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• mice exhibit normal body weight
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• mice treated with leptin fails to increase core body temperature unlike wild-type mice
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• mice treated with leptin fails to increase core body temperature unlike wild-type mice
• mice treated with leptin fail to exhibit a change in normal, night-time food intake compared with wild-type mice
• however, mice treated with Cck exhibit a suppression in food intake
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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO) |
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last database update 03/25/2025 MGI 6.24 |
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