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construct
M_MECP2_5.4_KO_HT
Model Details
Change
No Change
     
Phenotypic Profile
Category Entity Quantity Experimental Paradigm Age at Testing
Motor phenotype Motor coordination and balance1
Decreased
Description: Decreased motoro coordination indicated by greater number of footslips
Exp Paradigm: Grid walking test

Footslip test Unreported
Motor phenotype General locomotor activity1
Decreased
Description: Decreased locomotor activity indicated by less distance traveled and reduced horizontal and vertical activity
Exp Paradigm: Open field test

Open field test 4 months
Sensory Startle response: acoustic stimulus1
Decreased
Description: Decreased startle response: acoustic stimulus response to 102-118 db & max 120 db audio stimulus
Exp Paradigm: Sensorimotor gating response to series of sounds from 70 to 118 db

Startle response test 5 months
Sensory Pain or nociception1
Decreased
Description: Decreased pain sensitivity to conductive heat stimulus indicated by increase in latency to respond when placed on a heted metal surface
Exp Paradigm: Female mice: hot plate test

Hot plate test 5.5 months
Social behavior Social approach1
Decreased
Description: Decreased social approach indicated by equal amount of time investigating either a novel mouse or a novel object
Exp Paradigm: Three chambered assay for sociability

Three-chamber social approach test 12 weeks
Social behavior Social approach1
Decreased
Description: Decreased social approach indicated by less time spent investigating novel mouse and novel object
Exp Paradigm: Three chambered assay for sociability

Three-chamber social approach test 5.5 months
Physiological parameters Hormone levels1
Decreased
Description: Decreased expression of sst in hypothalamus
Exp Paradigm: Qrt-pcr analysis

Quantitative pcr (qrt-pcr) 5.5 months
Physiological parameters Respiratory function1
Abnormal
Description: Abnormal respiratory function indicative of breathing abnormalities through number of apneas per 1000 breaths
Exp Paradigm: Number of apneas and respiratory rate

Respiration rate and pattern analysis 7 weeks
Developmental profile Size/growth1
Increased
Description: Increased body weight
Exp Paradigm: General observations

General observations 12 months
Emotion Anxiety1
Decreased
Description: Decreased anxiety indicated by more time in open arms along with more open arm entries and more distance traveled
Exp Paradigm: Elevated plus maze test

Elevated plus maze test 5 weeks
Emotion Anxiety1
Decreased
Description: Decreased anxiety indicated by more time spent in lit compartment along with more transitions to lit compartment
Exp Paradigm: Light/dark box assay

Light-dark exploration test 5 weeks
Learning & memory Cued or contextual fear conditioning: passive avoidance1
Decreased
Description: Decreased passive avoidance learning indicated by decreased latency to enter dark compartment and fewer animals associating shock with dark compartment
Exp Paradigm: Passive avoidance task

Passive avoidance test 14 weeks
Learning & memory Cued or contextual fear conditioning: memory of context1
Decreased
Description: Decreased contextual fear memory but normal cued fear memory
Exp Paradigm: Pavlovian fear conditioning

Fear conditioning test 14 weeks
Molecular profile Protein expression level evidence1
Decreased
Description: Decreased expression of mecp2 in hypothalamus to 55 to 85% levels
Exp Paradigm: Mecp2 levels

Quantitative pcr (qrt-pcr) 5.5 months
Developmental profile Size/growth1 No change General observations 8-22 weeks
Motor phenotype General locomotor activity1 No change Open field test 7 weeks
Sensory Olfaction1 No change Olfactory discrimination test 12 weeks
Sensory Sensorimotor gating1 No change Prepulse inhibition 7, 20 weeks
Sensory Startle response: acoustic stimulus1 No change Startle response test 7 weeks
Not Reported: Circadian sleep/wake cycle,  Communications,  Immune response,  Maternal behavior,  Neuroanatomy / ultrastructure / cytoarchitecture,  Neurophysiology,  Physiological parameters,  Repetitive behavior,  Seizure,  
 
References: 1:  Samaco RC , et al. 2012
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