[pure-silver] Re: Which photo chemicals taste the best?
- From: "J.R. Stewart" <jrstewart@xxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Thu, 20 Jan 2005 18:01:45 -0500
Talk about an OT thread.
Dogs and cats are not humans.. there are LOTS of differences in how they
metabolize chemicals they come in contact with. One well known mechanism is
demethylation, which dogs especially and also cats, don't do very well. If
your medium sized dog eats 3 large dark chocolate bars, it may feel bad for
awhile but will likely get over it. Or it may not feel bad at all, because
it can still eliminate the theobromine without metabolizing it. If you're
worried take it to your veterinarian and have his stomach pumped.
Hey, anyone tried theobromine as a developer? Oh, okay... I won't go there.
J.R. Stewart
D.V.M, Ph.D. (Pharmacology) --- my credentials for what it's worth.
----- Original Message -----
From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Thursday, January 20, 2005 2:47 PM
Subject: [pure-silver] Re: Which photo chemicals taste the best?
> >Do you really know neuropharmacology?
>
> Only to the extent of looking up the toxicity of theobromine last year
> after one
> of my dogs ate a 6 oz box of chocolate cherries.
>
>>Urease is usually an enzyme that breaks down urea to ammonia and
>>carbamate.
>
> You're right, but several articles that I was reading contained something
> similar to the following. "Uric acid is the end product of purine
> metabolism,
> and humans and higher apes lack an enzyme, urease, that further degrades
> uric
> acid." Doing a bit more reading, I now think they may have meant uricase
> instead of urease.
>
> -----Original Message-----
> From: pure-silver-bounce@xxxxxxxxxxxxx
> [mailto:pure-silver-bounce@xxxxxxxxxxxxx]
> On Behalf Of Ryuji Suzuki
> Sent: Thursday, January 20, 2005 1:40 PM
> To: pure-silver@xxxxxxxxxxxxx
> Subject: [pure-silver] Re: Which photo chemicals taste the best?
>
>
> From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
> Subject: [pure-silver] Re: Which photo chemicals taste the best?
> Date: Thu, 20 Jan 2005 10:34:04 -0500
>
>> The mechanism appears to be the same for theobromine, theophylline,
>> and caffeine and consists of removal of the methyl groups attached to
>> nitrogens in the purine skeleton. The ultimate end product being uric
>> acid. Apparently, dogs and cats have other problems with purine based
>> compounds.
>
> Do you really know neuropharmacology?
>
>> They also lack the enzyme urease which further breaks down uric acid
>> to urea.
>
> Urease is usually an enzyme that breaks down urea to ammonia and
> carbamate.
>
> --
> Ryuji Suzuki
> "Keep a good head and always carry a light camera."
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