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Relevance to Autism

Brattleboro rats, which have a spontaneous mutation disrupting the AVP gene, were shown to display a natural deficit in social discrimination that could be reversed by treatment with clozapine or a neurotensin analog (Feifel et al., 2009). One of the receptors for arginine vasopressin is the protein encoded by the ASD-associated gene AVPR1.

Molecular Function

This gene encodes a member of the vasopressin/oxytocin family and preproprotein that is proteolytically processed to generate multiple protein products, including the neuropeptide hormone arginine vasopressin. Arginine vasopressin plays a role in many biological processes, including cognition, tolerance, adaptation and complex sexual and maternal behaviour.

External Links

        

References

Type
Title
Type of Disorder
Associated Disorders
Author, Year
Primary
The brattleboro rat displays a natural deficit in social discrimination that is restored by clozapine and a neurotensin analog.
Positive Association
Variants in Adjacent Oxytocin/Vasopressin Gene Region and Associations with ASD Diagnosis and Other Autism Related Endophenotypes.
ASD
Support
Atypical Social Development in Vasopressin-Deficient Brattleboro Rats.
Support
The vasopressin precursor in the Brattleboro (di/di) rat.

Rare

No Rare Variants Available

Common

Variant ID
Polymorphism
SNP ID
Allele Change
Residue Change
Population Origin
Population Stage
Author, Year
 GEN788C001 
 intergenic_variant 
 rs2740204 
  
  
 207 probands (156 trios) 
 Discovery 
 GEN788C002 
 intergenic_variant 
 rs1410713 
  
  
 207 probands (156 trios) 
 Discovery 
Chromosome
CNV Locus
CNV Type
# of studies
Animal Model
20
Deletion-Duplication
 33
 
20
Duplication
 1
 
20
Duplication
 1
 
20
Duplication
 1
 
20
Duplication
 3
 
20
Duplication
 1
 

Model Summary

Vasopressin and oxytocin are chemically and functionally related neurohormones that have both been implicated in the regulation of social behavior.

References

Type
Title
Author, Year
Primary
Reversal of sensorimotor gating deficits in Brattleboro rats by acute administration of clozapine and a neurotensin agonist, but not haloperidol: a...

R_AVP_1_KO_HM

Model Type: Genetic
Model Genotype: Homozygous
Mutation: Spontaneous Brattleboro mutation.
Allele Type: Spontaneous mutation
Strain of Origin: Long Evans
Genetic Background: Long Evans
ES Cell Line: Not Specified
Mutant ES Cell Line: Not Specified
Model Source: Harlan Laboratories

R_AVP_1_KO_HM

Category
Entity
Quantity
Experimental Paradigm
Age at Testing
Startle response: acoustic stimulus1
Increased
Description: In haloperidol experiment, increased startle response, in clozapine and PD149163 experiments, no change in startle response
Exp Paradigm: Acoustic startle reflex test
 Acoustic startle reflex test
 2-3 months
Sensorimotor gating1
Decreased
Description: Decreased prepulse inhibition
Exp Paradigm: Prepulse inhibition
 Prepulse inhibition
 2-3 months
Startle response: acoustic stimulus1
 No change
 Acoustic startle reflex test
 2-3 months
 Not Reported: Circadian sleep/wake cycle, Communications, Developmental profile, Emotion, Immune response, Learning & memory, Maternal behavior, Molecular profile, Motor phenotype, Neuroanatomy / ultrastructure / cytoarchitecture, Neurophysiology, Physiological parameters, Repetitive behavior, Seizure, Social behavior

 

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