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leftchick Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:30 PM
Original message
Brain Surgery Patient Dies, Others Alerted (CJD)
http://news.yahoo.com/s/ap/20060518/ap_on_he_me/creutzfeldt_jakob_disease

LITTLETON, Colo. - Officials at a suburban Denver hospital were alerting brain surgery patients after another patient died of a rare degenerative brain ailment called classic Creutzfeldt-Jakob Disease, the hospital said Thursday.


Six people who had neurosurgery at Littleton Adventist Hospital after an operation on the Creutzfeldt-Jakob patient and were alerted because of the remote possibility that the disease could be transmitted by surgical instruments, even after they are sterilized, the hospital said.

It was not immediately clear whether the instruments used on the victim were also used on any of the other six patients.

Classic Creutzfeldt-Jakob Disease is not related to mad cow disease, unlike variant Creutzfeldt-Jakob Disease. Classic CJD occurs sporadically, appearing in about one in 1 million people in the United States each year, according to the Centers for Disease Control and Prevention Web site. It progresses quickly and is always fatal.

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napi21 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:34 PM
Response to Original message
1. Why don't I believe this disease can survive steralization?
I'm a firm believer that if something doesn't make sense, it's probably wrong, and that statement doesn't make sense!
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Kagemusha Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:36 PM
Response to Reply #1
3. It's not based on either a virus or bacteria per se.
Sterilization is meant to take care of virii and bacteria. They may have such limited knowledge of anything *not* limited to those two categories that the data is insufficient to rule certain things out.
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benburch Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:44 PM
Response to Reply #3
7. In fact we know you can autoclave that prion and not kill it.
Sometimes incineration is not enough.
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HiFructosePronSyrup Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 07:02 PM
Response to Reply #7
12. Autclaving and incineration are two different things.
An Autoclave is essentially a pressure cooker. Incineration means it actually combusts. A prion won't survive combustion, but then neither will glassware and tools and other things that need autoclaving.

Apparently there are some supped-up autoclaves that scientists who actually work with Mad Cow can use for their equipment.
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crikkett Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 07:45 PM
Response to Reply #3
14. The 'infectious' agent of CJD is a malformed protein called a 'prion'
Imagine yarn that you twist until it starts to ball up and tangle. That's kind of how proteins form. A malformed protein, a prion, is kinky in its own way and it kinks up other proteins that it comes into contact with. This causes them to malfunction - because proteins are supposed to twist in a particular way and fit into receptors on other proteins in our bodies. Kinking them makes a round peg into a square one, essentially, and so then the kinked protein won't fit into its round hole anymore. It's not just useless, it's poisonous. Like living freezerburn.

Sorry for mixing metaphors. Anyway,

This is wonky in the way that bacteria (which eats us) and viruses (which hijack our cells to make more virus) isn't. The malformed proteins don't break down by cooking or sterilization. They're not destroyed by sterilization or cooking! They go into the ground and the water, and they don't neccessarily wash off of surgical implements. It's literally a Midas Touch. We are defenseless against prions.

And it's a bigger problem than you think - a few years ago Michigan warned hunters that 25% of its wild deer and elk were suffering CJD. I am three to four degrees away from a person who died from eating vennison.

Cows get a similar brain disease, vCJD or Mad Cow disease, by eating other cows. That means that somehow, prions go from the GUT to the BRAIN. The RED CROSS won't let people who lived in ENGLAND during the 80s donate BLOOD.

So BLOOD, GUTS, SPINE, MARROW and BRAIN are dangerous to eat. Then, consider that blood serves muscle - when I researched this problem a couple of years ago I'd just stand in front of the meat counter and cry. And the USDA will NOT allow us to test EVERY COW for vCJD - Mad Cow disease, caused by prions.

vCJD and CJD is often misdiagnosed as Alzheimer's Disease. Symptoms are similar. There is no cure for either.

Disclaimer: I am not vegetarian. I am having hamburgers for dinner tonight. I have decided that so much of my food is poisoned that I can't avoid it and lead a happy life. I can't afford grass-fed beef and the US doesn't require the kind of labeling on prepared foods (even produce) that would make me feel informed. So, I live as well as I can, and work for change.

I hope you all do too.
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oioioi Donating Member (320 posts) Send PM | Profile | Ignore Fri May-19-06 12:24 AM
Response to Reply #14
23. Very interesting, thanks.
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AlienGirl Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:36 PM
Response to Reply #1
4. It isn't a disease like a bacterium or a virus, it isn't "alive" really
CJD is the result of a misfolded protein, and the proteins can't be "killed"--only chemically disassembled in one way or another. It is really easier to think of it as a poison that makes more of itself once inside your body than like a disease in the ordinary sense.

Tucker
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Crayson Donating Member (463 posts) Send PM | Profile | Ignore Fri May-19-06 05:53 AM
Response to Reply #1
27. i don't believe it either, but...

C-J is not a disease in a classical sense.
I't not a virus.
It's not bacteria.
It's not a fungus.

It is a protein.
A mutated form of a protein, folded the wrong way around.
You can't "kill" it because it doesn't "live" in the first place.

Normally proteins don't withstand high temperatures (see you breakfast egg when it becomes solid and was liquid before).
But I hear this protein is quite resistant.
Cooking the meat of a C-J cow doesn't seem help against it, so sterilizing surgical instruments probably won't either.

But then again, nobody really knows yet how consuming such a bad protein can trigger the disease and make your body producing more bad proteins yourself.

So, "Remote possibility" is a very good term for it in my opinion.
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LeftyMom Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 05:13 PM
Response to Reply #1
34. It can
It takes temps above 700 degrees for an hour or more and a lye bath to kill CJD prions. That's supposed to be standard protocol on brain surgery instruments that will be reused for precisely this reason.
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astonamous Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:35 PM
Response to Original message
2. You can't sterilize those instruments.
Every hospital I have ever worked in or dealt with have an emergency set of instruments for any patient that might need emergency surgery and have been diagnosed with CJD. The instruments, if used, are destroyed after.

Wow, this is incredible.
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napi21 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:40 PM
Response to Reply #2
5. THANKS! That's the first thing that does make sense.
I would think EVERY hospital would handle things that same way.
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pansypoo53219 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 08:00 PM
Response to Reply #5
16. the cryptosporidium that was in the milwaukee
water system could survive full strength bleach.

some 'bugs' are not normal.
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leftchick Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:44 PM
Response to Reply #2
6. Yes indeed
this is scary and makes a person wonder how many go unreported. :(
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DoYouEverWonder Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 06:07 AM
Response to Reply #6
28. I know of at least on 'unreported case'
The man had CJD and was in bad shape. There were orders not to feed him anything because he could no longer swallow. The nurse on the night shift decided to feed him anyway. Cause of death was from suffocation, so there is no official record of this patient also having CJD.
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Dogmudgeon Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 01:41 AM
Response to Reply #2
25. I've actually done EEGs on Creutzfeldt-Jacob patients
Double-gloved. With positive-pressure micron masks. Two gowns. Two of everything. And after the test, it was all incinerated, right down to the electrodes. And one of the doctors supervising the test wanted me to surrender every stitch of my clothing for incineration. The whole wing of the hospital was put on notice. It was seriously paranoid.

I was still in my 20s, and didn't fear anything. But nobody even had a clue about CJD back then, only that it was transmissible, rare, and incurable.

The day that we discover a non-toxic denaturant for the prions, is a day that will lift my spirits considerably.

--p!
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goforit Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:48 PM
Response to Original message
8. Creutzfeldt-Jakob Disease not related to mad cow? Why such a
defensive pronouncement to its relationship to Mad Cow?

You can not get any other disease any closer to CJD than Mad Cow.
And the next closest disease next to Mad Cow is Ahlzimers!

and what US Gov't agency is going to inform its citizens about
the meat industry poisoning its people?
Certainly not the CDC or the EPA or the AMA.

Hell no!!!
Hurt the profits of Bush's goat roping Texas Cowboys?

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nickinSTL Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:51 PM
Response to Reply #8
9. They mention it BECAUSE
anyone who's paid any attention to the mad cow outbreak in Britain knows of a link between CJD and mad cow. However, they may NOT understand the difference between CLASSIC and VARIANT CJD...as you seem not to.
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goforit Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:58 PM
Response to Reply #9
11. Go on explain.
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kestrel91316 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 09:28 PM
Response to Reply #9
18. The only difference between "classic" CJD (more properly called
Sporadic CJD) and "variant" CJD, IMHO, is that in sCJD nobody has figured out how the heck the person got it, so it MUST be sCJD, RIGHT???

I happen to think they are THE SAME DISEASE. But what do I know. I'm just a veterinarian with a microbiology degree and a longstanding interest in veterinary public health and zoonoses.
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Odin2005 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 11:58 PM
Response to Reply #18
21. My understanding is that clasic CJD is caused by...
Prions are dirived from a certain class of brain protiens, cCJD being a result of a spontaneous misfolding while vCJD is from ingesting protiens that are already misfolded.

I think your just trying to find a reason to call eating meat bad.
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kestrel91316 Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 12:18 AM
Response to Reply #21
22. "Spontaneous folding", my a - -, lol. And, no I am not trying to
find a reason to call eating meat bad. I am NOT a vegetarian, lol. I gladly eat venison and elk and oryx harvested by my DBF, fish cauht by him, some chicken from the grocery, occasional turkey from same, and even beef once or twice a year. I LOVE eggs. I eat at McDonalds once or twice a year (spartanism is not my thing).

I have a serious problem with factory farming and the problems it causes. I have no problem with eating meat, per se.

Run along now and make your gross overgeneralisms somewhere else.........

And about the idea of "spontaneous folding" - I give that about as much creedence as "spontaneous generation".
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crikkett Donating Member (1000+ posts) Send PM | Profile | Ignore Sat May-20-06 10:58 AM
Response to Reply #22
38. the guy/gal was just confused
between 'vegetarian' and 'veterinarian'
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depakid Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 06:58 AM
Response to Reply #18
29. I've often wondered what the differences are
Edited on Fri May-19-06 07:00 AM by depakid
but I've never looked at the literature.

Therw was a cluster of cases in Kentucky about 10 years ago that was traced back to squirrel brains (no Clampet music, please). What was the difference there? How do they identify the clinical markers?

And what about people who eat deer & elk with "chronic wasting disease?"

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kestrel91316 Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 10:00 PM
Response to Reply #29
36. There was a cluster of men in WI where the common link was
eating venison and elk at some gathering, IIRC..............
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Henny Penny Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 04:58 PM
Response to Reply #18
32. I always think that
the classic version might come from scrapie... but thats just my guess.
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kestrel91316 Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 10:01 PM
Response to Reply #32
37. It's as good an idea as any .........................
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acmejack Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 06:57 PM
Response to Reply #8
10. Absolutely, even my dumb old self immediately thought "mad cow!"
and I didn't even play a Doctor on tv!
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kestrel91316 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 09:24 PM
Response to Reply #8
17. And guess what? There is a variant of Mad Cow that, in cows, looks almost
identical to how Alzheimer's looks in people.

My theory is that this whole mess is a lot more widespread than anyone will admit. They are NOT looking for it - I hear they don't ever bother to do autopsies on people who have "Alzheimer's". Why bother - we "know" what they had, RIGHT???
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AnneD Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 04:48 PM
Response to Reply #17
31. I agree with you...
Edited on Fri May-19-06 04:51 PM by AnneD
and this has been a fascinating and informative thread. I love meat (elk etc too) and as a nurse that has work in nursing home with alzheimer's...I figure I am already pretty screwed over. I try to know my food source if at all possible. Nice to know I don't have to eat charcoal-since that doesn't protect.
So how about lasers and prions? Not practical for cleaning but maybe destroying.
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kestrel91316 Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 09:57 PM
Response to Reply #31
35. Anything that would denature proteins would work, I assume. But
that involves nasty things like lye baths (hell on surgical instruments - WINCE!!!) or some such impractical measures.
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Sgent Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 07:29 PM
Response to Original message
13. This has happened before and will again
if neurosurgery is performed on a patient with no evidence of CJD, they steralize and reuse instruments. If patient later develops CJD, its an indication that he may have had it all along, and any other patients that had the equipment used on them are in danger.

If you want completely new instruments for your surgery I imagine you could arrange for it. However, its thousands of dollars as most hospitals no longer re-use any instruments under a certain dollar value anyway. In addition, CJD is not transmited via normal means (even blood borne)-- it requires brain tissue contact to instrument, and intrument to brain tissue for transmission.
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Eurobabe Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 07:55 PM
Response to Reply #13
15. yeah, and even cornea transplant patients can get it
or patients that have had neurosurgical dura mater (brain tissue) graft.

But there's no need to panic, the Bush govt. has it all under control. :mad:
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Duer 157099 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 09:39 PM
Response to Original message
19. I seem to recall that prions cannot survive in formic acid
I wonder why instrumentation can't be cleaned with that first, maybe even routinely? Dunno what it might do to the metal, if anything. And then autoclave afterwards.

Also, don't ants make formic acid?

I once had a crazy notion that ants could be the clue to a cure for prion diseases, and possibly even AD.
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uppityperson Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-18-06 11:09 PM
Response to Reply #19
20. vocabulary word of the day: formication
that feeling of bugs/ants crawling on your skin. formica (Latin)=ants. wonder if formica (as in counter tops) is related to ants?
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Dogmudgeon Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 01:43 AM
Response to Reply #20
26. IIRC, Formica is manufactured with formic acid
So -- yes. It's related to the Latin formica = ant.

Of course, it could be one of those Urban Legends that debunkers love, but I acquired that factoid before the Internet.

--p!
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Dogmudgeon Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 01:33 AM
Response to Reply #19
24. Who knows. Maybe.
Formic acid is easy to produce and obtain. There's nothing really special about it. It's a fairly simple acid that ants and stinging insects produce in their bodies. It's usually delivered by stinging.

There is currently no known way to destroy prions, but since they are proteins, there must be some kind of way to denature them enough to render them inactive. Acids are just as good at denaturing most proteins as anything else. But since prions -- as well as CJD itself -- are so difficult to work with, work has been slow.

--p!
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Henny Penny Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 05:01 PM
Response to Reply #19
33. never heard formic acid..
but did hear conc. sulphuric would do the trick.
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Duer 157099 Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-19-06 04:11 PM
Response to Original message
30. From CDC -- inactivation of prions (fyi)

Inactivation of prions. Prions are characterized by extreme resistance to conventional inactivation procedures including irradiation, boiling, dry heat, and chemicals (formalin, betapropiolactone, alcohols). While prion infectivity in purified samples is diminished by prolonged digestion with proteases,(39)(40)results from boiling in sodium dodecyl sulfate and urea are variable. Sterilization of rodent brain extracts with high titers of prions requires autoclaving at 132C for 4.5 hours (h). Denaturing organic solvents such as phenol or chaotropic reagents such as guanidine isothiocyanate or alkali such as NaOH can also be used for sterilization.(41)(42)(43)(44)(45) Prions are inactivated by 1N NaOH, 4.0 M guanidinium hydrochloride or isocyanate, sodium hypochlorite (2% free chlorine concentration), and steam autoclaving at 132C for 4.5 h.(46)(47)(48)(49) It is recommended that dry waste be autoclaved at 132C for 4.5 h or incinerated. Large volumes of infectious liquid waste containing high titers of prions can be completely sterilized by treatment with 1N NaOH (final concentration) or autoclaving at 132C for 4.5 h. Disposable plasticware, which can be discarded as a dry waste, is highly recommended. Because the paraformaldehyde vaporization procedure does not diminish prion titers, the biosafety cabinets must be decontaminated with 1N NaOH, followed by 1N HCl, and rinsed with water. HEPA filters should be autoclaved and incinerated.
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