Re: [FH] HCM in certain breeds sucah as Maine Coon was Sandy, Bandit
- Well that's not good news about HCM being more severe in Maine Coons.
Actually I don't even know that Daisy is a Maine Coon, but if you check out
her photos on the homepage, she does look like one. It scares me to think
of her dad out there probably still breeding if he's not dead yet. Daisy's
owner surrendered her and her mom and quite a few other cats to the local
animal shelter, the reason being "too many cats". So Daisy's mom probably
went outside and that's how Daisy happened. Irresponsible pet owners make
me so angry sometimes. Thanks Susan. I've printed out a lot of your emails
and highlighted certain parts to show my vet next time she comes over.
----- Original Message -----
Sent: Monday, June 30, 2003 11:47 AM
Subject: [FH] HCM in certain breeds sucah as Maine Coon was Sandy, Bandit
--- CatsFurLife@... wrote:
> Hi Shannon. HCM isn't breed specific. It can
> happen to any cat. It has
> just been more publicized with Maine Coons, and I
> have heard of a few cases with
> Ragdolls. I can't really say any more than that.
> Unfortunately, if the cat
> is a young male neuter, from what I understand, they
> are more prone to it.
From what I have read vets know the most about HCM in
the Maine Coon because a breeder who noticed she had a
line of cats who were afflicted with HCM donated cats
from that line to a vet cardiologist so they could
breed specific cats to study. That is how they know if
both parents are afflicted it is much worse (higher
incidence of afflicted kittens in a litter and more
severe disease) however becuase it is autosomal
dominant it only requires 1 parent but not all kittens
from that litter develop the disease. Males are
overrepresented however I don't recall reading
anything regarding whether or nor neutering is an
issue. I also recall reading that though other breeds
are overrepresented in HCM cases (American Shorthair,
Ragdoll and sometimes I see Persians mentioned) that
the HCM seen in Maine Coons is more severe. When the
gene for HCM was discovered in humans there was a lot
of hope it would be the same gene in cats but
unfortunately it wasn't.
It seems like Maine Coon breeders much like the
doberman breeder community has done a lot for HCM
research and have been really involved in actively
trying not to breed HCM afflicted animals.
I personally have theorized about a feral connection
both from a temperament standpoint and from an
inbreeding perspective. (I am on my second young feral
HCM patient). We often associate inbreeding with
purebred animals but I think we have no idea how
inbred a feral colony might be.
Rudy: Male DSH brown tabby, feral mom, diagnosed 09-2002 at 19 months of age
with idiopathic HCM: grade 2 murmur, hyperkinetic heart, borderline normal
thickening, considered asymptomatic, 12.5 mg Atenolol 1x day, 1/2 baby
aspirin 2x week administered via pilling
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