Genetic Tying-up

["Claudia Provin" <provincmk@fanninelectric.com>]

I went to some "authorities" and questioned EPSM in an Arabian--I was told
that, to their knowledge, there is no documentation of EPSM in an Arabian,
and the sites below were given to me as references.   I will also forward
another reference separately (because I don't know how to cut and
paste--sigh).   I hope the information below is helpful.   I am not
forwarding these to be argumentative, just trying to provide some
information.   Claudia


> Could it be that her mare has RER  (Recurrent Exertional Rhabdomyolysis)
rather
> than EPSM?  Bot h are diagnosed by muscle biopsy, but I thought EPSM was
> limited to draft horses?  RER is found in Thoroughbreds and Arabians.  See
> link. below.
>
> http://www.sporthorsemedicine.com/NCSUsumm.htm
>
> Also another article on various forms, with a neat discussion of fast and
slow
> twitch muscle fibers.
>
> http://www.thehorse.com/0697/tying_up0697.html
>
> Plus an interesting article on diagnostic issues.  Makes a fairly definite
> distinction between RER and EPSM, notes that they are often confused.
>
> http://www.wehn.com/WEVR/V2N3/09/index.html