RGD Reference Report - pain2: A neuropathic pain QTL identified on rat chromosome 2. - Rat Genome Database

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pain2: A neuropathic pain QTL identified on rat chromosome 2.

Authors: Nissenbaum, J  Shpigler, H  Pisante, A  Delcanho, S  Minert, A  Seltzer, Z  Devor, M  Darvasi, A 
Citation: Nissenbaum J, etal., Pain. 2007 Jun 7;.
RGD ID: 1643003
Pubmed: PMID:17560719   (View Abstract at PubMed)
DOI: DOI:10.1016/j.pain.2007.05.006   (Journal Full-text)

We aimed to locate a chronic pain-associated QTL in the rat (Rattus norvegicus) based on previous findings of a QTL (pain1) on chromosome 15 of the mouse (Mus musculus). The work was based on rat selection lines HA (high autotomy) and LA (low autotomy) which show a contrasting pain phenotype in response to nerve injury in the neuroma model of neuropathic pain. An F(2) segregating population was generated from HA and LA animals. Phenotyped F(2) rats were genotyped on chromosome 7 and chromosome 2, regions that share a partial homology with mouse chromosome 15. Our interval mapping analysis revealed a LOD score value of 3.63 (corresponding to p=0.005 after correcting for multiple testing using permutations) on rat chromosome 2, which is suggestive of the presence of a QTL affecting the predisposition to neuropathic pain. This QTL was mapped to the 14-26cM interval of chromosome 2. Interestingly, this region is syntenic to mouse chromosome 13, rather than to the region of mouse chromosome 15 that contains pain1. This chromosomal position indicates that it is possibly a new QTL, and hence we name it pain2. Further work is needed to replicate and to uncover the underlying gene(s) in both species.

Disease Annotations    
Pain  (IDA)

Phenotype Annotations    

Mammalian Phenotype
Objects Annotated

Pain1  (Pain QTL 1)
Pain2  (Pain QTL 2)

HA/Humd  (high autotomy)
LA/Humd  (low autotomy)

Objects referenced in this article
QTL Pain1_m pain 1 (mouse) Mus musculus

Additional Information