- Hello Jeff and Patricia,
-
- Please forgive me for butting in, but I must clarify
- a few things, and I would also please like to pass
- some new data to you both. Please use this data as
- you wish. But I noticed in this thread...
-
- "...ask attending physician if it is nvCJD, sCJD
or CJD..."
-
- Please be advised of these most recent findings
- about BSE and sporadic CJDs, now at six documented
- phenotypes/variants and with over 20 documented
- in sheep with scrapie, who knows with CWD and BSE,
- but I would assume more to come with CJD.
-
- With this devastating news about sporadic CJD and the
fact the
- USDA and the APHIS have not been telling us the truth
about
- mad cow in the USA, when the late Richard Marsh PROVED
some
- strain of TSE was indeed in the USA cattle some time
back,
- I ask, why in the hell is this not making big news in
the USA?
-
- The fact that with the new findings from Collinge et
al,
- that BSE transmission to the 129-methionine genotype
can lead
- to an alternate phenotype which is indistinguishable
from
- type 2 PrPSc - the commonest sporadic CJD - I only ponder
how
- many of the sporadic CJDs in the USA are tied to this
alternate
- phenotype?
-
- These new findings are very serious and should have
- a major impact on the way sporadic CJDs are now treated
as opposed
- to the vCJD that was thought to be the only TSE tied
to ingesting
- beef in the medical/surgical arena.
-
- These new findings should have a major impact on the
way sporadic
- CJD is currently ignored, and should now be moved to
the forefront of
- research as with vCJD/nvCJD.
-
- The USA has many TSEs. The USA lacks sufficient testing
for TSEs in
- cattle, and the USA still refuses to rapid TSE test USA
cattle in sufficient
- numbers to find, when the late Dr. Richard Marsh had
proven
- that mink had gone down with a TSE (TME), from being
fed
- on 95%+ downer cattle.
-
- The GAO has also warned the industry and the FDA that
the
- ruminant-to-ruminant feed ban has to significantly improved
if they
- expect to keep BSE/TSEs out of USA cattle. Scrapie has
increased
- significantly, and CWD is spreading.
-
- All this should warrant/mandate that CJD/TSEs in humans
- in the USA be made reportable on a National basis, immediately...
-
- Kindest regards,
- Terry
-
- Terry S. Singeltary Sr.
- flounder@wt.net
- CJD WATCH
-
-
- Subject: re-BSE prions propagate as either variant CJD-like
or sporadic CJD
- Date: Thu, 28 Nov 2002
- From: "Asante, Emmanuel A" <e.asante@ic.ac.uk>
- To: "'flounder@wt.net'" <flounder@wt.net>
-
- Dear Terry,
-
- I have been asked by Professor Collinge to respond to
your request. I am a Senior Scientist in the MRC Prion Unit and the lead
author on the paper. I have attached a pdf copy of the paper for your attention.
Thank you for your interest in the paper.
-
- In respect of your first question, the simple answer
is, yes. As you will find in the paper, we have managed to associate the
alternate phenotype to type 2 PrPSc, the commonest sporadic CJD.
-
- It is too early to be able to claim any further sub-classification
in
- respect of Heidenhain variant CJD or Vicky Rimmer's version.
It will take further studies, which are on-going, to establish if there
are sub-types to our initial finding which we are now reporting. The main
point of the paper is that, as well as leading to the expected new variant
CJD phenotype, BSE transmission to the 129-methionine genotype can lead
to an alternate phenotype which is indistinguishable from type 2 PrPSc.
-
- I hope reading the paper will enlighten you more on the
subject. If I can be of any further assistance please to not hesitate to
ask. Best wishes.
-
- Emmanuel Asante
-
- <<Print version_cdf653.pdf>>
-
- Dr. Emmanuel A Asante
- MRC Prion Unit & Neurogenetics Dept.
- Imperial College School of Medicine (St. Mary's)
- Norfolk Place, LONDON W2 1PG
- Tel: +44 (0)20 7594 3794
- Fax: +44 (0)20 7706 3272
-
- PLEASE SEE FULL TEXT OF THIS ARTICLE -
-
- http://www.vegsource.com/talk/madcow/messages/9912118.html
-
- "I am wondering HOW they are disposing of the patient's
personal articles, instruments used on the patient, etc., etc. Are they
washing his/her bedding in the general laundry?" - Patrica Doyle,
Phd
-
- CJD/TSEs....Community Healthcare
-
- 4.45 When caring for known, suspect or at risk patients
in the community, the principles outlined in the section on hospital care
are equally applicable. Either in hospital or in community healthcare,
standard infection control procedures will minimize the risk of infection
transmission, not only to the care-givers, but also to members of the surrounding
community and population in general.
-
- 4.46 Clinical waste generated as a result of community
care-based treatment, e.g. swabs and sharps, should be handled as for any
clinical waste, and be disposed of by incineration. Guidance on the handling
of clinical waste has been published and a new edition is due in 1998 (see
bibliography).
-
- 4.47 Spillages of body fluids or waste material should
be handled as previously recommended (see paragraph 4.16).
-
- 4.48 Used or fouled bed linen (i.e. contaminated with
body fluids or excreta) should be removed from the bed and washed and dried
in accordance with convention (HSG 1995). Provided that care is taken,
bed linen is unlikely to represent an infection risk; however to further
reduce the risk, gloves should be worn and hands washed and dried after
contact. No further handling or processing requirements are necessary.
-
- 4.49 In the event that a known, suspect or at risk patient
becomes pregnant, no particular precautions need to be taken during the
pregnancy other than normal ante-natal care. However, during and after
the birth, particular precautions should be taken to reduce the risk of
transmission (see paragraph 4.14). If a home delivery is decided upon,
it is the responsibility of the midwife to ensure that any contaminated
material is removed and disposed of in line with correct procedures for
infected clinical waste.
-
- 4.50 Late stage CJD patients may well experience tissue
breakdown and the development of extensive pressure point sores. These
lesions should be dressed regularly, using standard infection control precautions,
and contaminated dressings disposed of as clinical waste by incineration.
-
- 4.51 The British Dental Association (BDA) has issued
general guidance on the development of practice infection control policies.
Individual practice infection control policies, if developed and implemented
efficiently, will minimise the risk of transmission of infection. Based
on the advice in this document, the BDA are understood to be preparing
specific advice for dental procedures on known, suspect or at risk patients.
-
- After Death
-
- 4.52 .........
-
- SNIP...
-
- http://www.archive.official-documents.co.uk/document/doh/spongifm/part-4b.htm
-
- ROUND TABLE ON BSE -- WASHINGTON -- 27-28 JUNE 1989
-
- snip...
-
- The summary does tend to give a particular slant to the
epidemiology of
- BSE which is not totally sound. It is a possibility that
the agent of
- BSE may be in the cattle population in a number of countries
already
- apart from the USA and that clinical cases are occurring
on rare
- occasions. It is also important to off the possibility
of the
- relationship between BSE and certain low-temperature
rendering systems.
- For that reason a number of other countries apart from
the USA and
- France are at risk and, in particular, the Netherlands,
Denmark,
- Germany and Belgium. For these reasons it would be wise
to move to an
- international ban on the feeding of ruminant protein
to ruminants.
-
- Clearly the summary also needs to refer to the incidence
of BSE in the
- UK and not solely to Great Britain. No doubt this has
been tidied up
- in your comments on the summary conclusions. It is a
pity that more of
- the comments put forward by Dr. Kimberlin have not been
included in the
- summary since his views on page 13 are succinct and valuable...
-
- snip...
-
- http://www.bseinquiry.gov.uk/files/yb/1989/08/29003001.pdf
-
- Is there a Scrapie-like disease in cattle ?
-
- IN CONFIDENCE
-
- R.F. MARSH
-
- snip...
-
- re-mink rancher 'Wisconsin' dead stock feeder using >95%
- downer or dead dairy and a few horses...
-
- http://www.bseinquiry.gov.uk/files/yb/1987/06/10004001.pdf
-
- Part of the Proceedings of an International Roundtable
on Bovine
- Spongiform Encephalopathy, Bethesda, Maryland, USA, June
27-28, 1989.
-
- The possibility of infection with BSE in the United States,
as defined
- by studies on the disease in Great Britain, is judged
to be low on the
- basis of the following: (1) meat and bonemeals imported
into the United
- States from Great Britain between 1980 and 1988 were
used mainly in
- poultry, not ruminant feed; (2) the Scrapie Eradication
Program had
- reduced the prevalence of scrapie in the United States
compared with
- that in Great Britain; and (3) little, if any, rendered
animal products
- are used for protein supplements in cattle feed in the
United States.
- However, there is some evidence that there may already
be a scrapie-like
- disease in cattle in the United States. This evidence
comes from
- epidemiologic studies on an incident of transmissible
mink
- encephalopathy (TME) in Stetsonville, Wis, in 1985. This
mink farmer
- used no commercially available animal by-product mixtures
in his feed,
- but instead slaughtered all animals going into the mink
diet, which
- included mostly (>95%) "downer" dairy cows,
a few horses, but never
- sheep. To examine the possibility that cattle may have
been the source
- of this incident of TME, two 6-week-old Holstein bull
calves were
- inoculated intracerebrally with mink brain from the affected
farm. The
- bulls developed neurologic disease 18 and 19 months after
inoculation.
- Both brains had spongiform degeneration at necropsy and
both were
- transmissible back to mink by either intracerebral (incubation
period of
- 4 months) or oral (incubation period of 7 months) inoculation
- Whereas TME has been thought to be caused by feeding
scrapie-infected
- sheep to mink, this theory has no conclusive evidence.
Experimental oral
- inoculation of mink with several different sources of
sheep scrapie has
- never been successful, and an incubation period of less
than 12 months
- has never (sic) produced by intracerebral inoculation.
Transmissible
- mink encephalopathy can develop naturally by infection
with incubation
- periods of less than 12 months.
- There is reason to believe that scrapie has not been
transmitted in the
- United States from sheep to cattle by rendered protein
concentrates as
- it was in Great Britain. However, some circumstantial
evidence exists
- that cattle may be a source of some TME infections. It
is recommended
- that we increase our surveillance for a BSE-like disease
in American
- cattle by encouraging state diagnostic laboratories to
formalin-fix
- specimens of midbrain and brain stem from bovine brains
submitted for
- rabies testing. If results of these tests are negative,
these fixed
- tissues can then be examined for evidence of spongiform
degeneration of
- the gray matter.
-
-
- -Comments on bovine spongiform encephalopathy
- J Am Vet Med Assoc 197 (4): (1990)
-
-
- Letter to the Editor, Journal of the American Veterinary
Medical
- Association, August 15, 1990
- In my article, "Bovine spongiform encephalopathy
in the United States"
- (JAVMA, May 15, 1990, p 1677), I stated that "little,
if any, rendered
- animal products are used for protein supplements in cattle
feed in the
- United States." I have since learned that this is
incorrect, because of
- the recent trend of using less assimilated "by-pass"
proteins in cattle
- feed. A large amount of meat-and-bone meal is being fed
to American
- cattle, and this change in feeding practice has greatly
increased the
- risk of bovine spongiform encephalopathy (BSE) developing
in the United
- States.
- Epidemiologic studies on BSE in Great Britain have indicated
that the
- disease originated in cattle by exposure to the heat-resistant
- transmissible agent in compounded feed containing rendered
animal
- protein. The most likely source of infection was assumed
to be
- meat-and-bone meal prepared from scrapie-infected sheep,
but it is also
- possible that a heretofore unrecognized scrapie-like
infection of cattle
- could have been spread in the same manner.
- Because of concern for the possible development of BSE
in the United
- States, the American rendering industry discontinued
the processing of
- fallen and sick sheep last December. In my opinion, this
was a prudent
- policy, but one that will not prevent the possible transmission
of BSE
- from cattle to cattle. As emphasized in my article, there
is some
- evidence that BSE-like infection may already exist in
American cattle.
- The current practice of feeding meat-and-bone meal to
cattle solidifies
- the most important means to perpetuate and amplify the
disease cycle.
- In Great Britain, BSE has produced a great economic and
emotional
- burden. We must take all reasonable measures to prevent
BSE from
- developing in the United States. Therefore, the practice
of using animal
- protein in cattle feed should be discontinued as soon
as possible.
- Waiting until the first case of BSE is diagnosed in the
United States
- will certainly be "closing the barn door after the
horse is gone." With
- a disease having a 3- to 6-year incubation period, thousands
of animals
- would be exposed before we recognize the problem and,
if that happens,
- we would be in for a decade of turmoil.
- R. F. Marsh, DVM, PhD
- Madison, Wis
- =============
-
- PAGE 25
-
- Transmission Studies
-
- Mule deer transmissions of CWD were by intracerebral
inoculation
- and compared with natural cases resulted in a more rapidly
- progressive clinical disease with repeated episodes of
synocopy
- ending in coma. One control animal became affected, it
is believed
- through contamination of inoculam (?saline). Further
CWD
- transmissions were carried out by Dick Marsh into ferret,
mink
- and squirrel monkey. Transmission occurred in _all_ of
these
- species with the shortest incubation period in the ferret.
-
- http://www.vegsource.com/talk/lyman/messages/7536.html
-
- http://www.vegsource.com/talk/lyman/messages/7535.html
-
- FULL TEXT OF GOA REPORT BELOW (takes a while to load)
-
- 2. Mad Cow Disease: Improvements in the Animal Feed Ban
and Other
- Regulatory Areas Would Strengthen U.S. Prevention Efforts.
GAO-02-183,
- January 25.
-
- http://www.gao.gov/cgi-bin/getrpt?GAO-02-183
- ===========================
-
- Subject: SCRAPIE 'USA' ANNUAL REPORT (105 newly infected
flocks 2002) & CWD IN USA
- Date: Tue, 10 Dec 2002 08:17:17 -0600
- From: "Terry S. Singeltary Sr." <flounder@wt.net>
- To: flounder@wt.net
-
- Date: Mon, 9 Dec 2002 21:21:10 -0600
- Reply-To: Bovine Spongiform Encephalopathy
- Sender: Bovine Spongiform Encephalopathy
- From: "Terry S. Singeltary Sr." <flounder@WT.NET>
- Subject: SCRAPIE 'USA' ANNUAL REPORT (105 newly infected
flocks 2002) & CWD IN USA
-
- As of September 30, 2002, there were 45 scrapie infected
and source
- flocks (figure 3). There were 105 newly infected flocks,
reported in
- FY2002 (figure 4). In addition, 379 scrapie cases were
confirmed and
- reported by the National Veterinary Services Laboratories
(NVSL) in FY
- 2002 (figure 5) and (figure 6). Five cases of scrapie
in goats were
- reported in FY 2002 (figure 7), the last of which was
confirmed in
- August 2002. New infected and source flocks numbers and
the number of
- these flocks released in FY 2002 are depicted in chart
4. One hundred
- (100) flocks which is 67 percent of the scrapie infected
and source
- flocks present in FY 2002 were released or put on clean-up
plans in FY2002.
-
- Slaughter Surveillance
-
- Slaughter Surveillance is currently in Phase II which
is intended to
- determine the prevalence of scrapie in the US culled
sheep population.
- Through September 2002 samples from 3,269 sheep were
submitted to NVSL
- for testing. Samples from a total of 6,795 sheep have
been submitted
- since the beginning of Phase II on April 1, 2002. Surveillance
regions
- are depicted in (figure 8).
-
- Scrapie Testing
-
- During FY 2002 11,751 animals have been tested for scrapie
which
- includes: 2,711 regular necropsy cases, 1,343 third eyelid
biopsies for
- the test validation project, 546 third eyelid biopsies
for the
- regulatory program, and approximately 7,151 animals for
Phase I & II of
- SOSS (chart 5). Laboratory testing has been taking 10
- 11 days on
- average with a range of 3 - 34 days.
-
- Ear Tag Orders
-
- During FY 2002 9.9 million plastic and 6.0 million metal
tags were
- distributed by APHIS (chart 6).
-
- http://www.aphis.usda.gov/vs/nahps/scrapie/annual_report/annual-report.html
-
- NEW SCRAPIE INFECTED AND SOURCE FLOCKS
-
- http://www.aphis.usda.gov/vs/nahps/scrapie/annual_report/figure04.gif
-
- DISTRIBUTION OF CHRONIC WASTING DISEASE THROUGHOUT THE
STATES (as of
- Oct. 2002)
-
- http://www.aphis.usda.gov/vs/nahps/cwd/cwd-distribution.html
-
- CWD USA surveillance
-
- http://www.aphis.usda.gov/vs/nahps/cwd/cwd-state.html
-
- CJD WATCH
-
- http://www.fortunecity.com/healthclub/cpr/349/part1cjd.htm
-
- CJD Watch message board
-
- http://disc.server.com/Indices/167318.html
-
- TSS MADCOW
-
- http://www.vegsource.com/talk/madcow/index.html
-
- Moms death from hvCJD
-
- http://www.vegsource.com/talk/lyman/messages/7252.html
-
- 'MOMS AUTOPSY REPORT'
-
- http://www.vegsource.com/talk/lyman/messages/7548.html
-
- http://www.testcowsnow.com
-
- * With 100 MILLION cattle in the USA in any given year,
-
- * With 37 MILLION cattle slaughtered every year.
-
- * With 190,000 DOWNERS ever year.
-
- * With Scrapie running rampant
-
- * With CWD running rampant
-
- ...and the fact the USA has now made SECRET ALL ruminant-
- to-ruminant feed ban violations since may 2002.
-
- * I ask, why is CJD not reportable nationally?
-
- * I ask, why 1 MILLION cattle annually are not rapid
tested
- for 5 years, to find the truth, if that is truly what
they are seeking?
-
- The token numbers they are now testing, even with the
- increase in 2002, is no where near enough. the EU
- is testing MILLIONS...these are much smaller countries
with
- much smaller cattle populations. And they are testing
millions.
-
- The USA has had the same rendering, the same feeding
- practices, and the same type cover-up the UK did for
- years, and this will simply spread the agent.
-
- Please take heed.......
-
- Cattlemen to finalize BSE research contracts (WHAT'S
THE RUSH, LET'S WAIT ANOTHER 30 YEARS) - TSS 1/17/03 (0)
-
- http://www.vegsource.com/talk/madcow/messages/9912335.html
-
- Docket No. 01-068-1 -- Risk Reduction Strategies BSE
Pathways Involving Downer Cattle and Dead Stock of Cattle and Other Species
- (TSS SUBMISSION)
-
- http://www.vegsource.com/talk/madcow/messages/9912358.html
-
- THERE ARE NOW APPROX. 200,000 DOWNERS ANNUALLY!
-
- http://www.vegsource.com/talk/madcow/messages/9912360.html
-
- Docket No. 02N-0273 - Substances Prohibited From Use
In Animal Food Or Feed (TSS SUBMISSION)
-
- http://www.vegsource.com/talk/madcow/messages/9912338.html
-
- : Ann Neurol 1999 Aug;46(2):224-33
-
- Classification of sporadic Creutzfeldt-Jakob disease
based on molecular and phenotypic analysis of 300 subjects.
-
- Parchi P, Giese A, Capellari S, Brown P, Schulz-Schaeffer
W, Windl O, Zerr I, Budka H, Kopp N, Piccardo P, Poser S, Rojiani A, Streichemberger
N, Julien J, Vital C, Ghetti B, Gambetti P, Kretzschmar H.
-
- Division of Neuropathology, Institute of Pathology, Case
Western Reserve University, Cleveland, OH 44106, USA.
-
- Phenotypic heterogeneity in sporadic Creutzfeldt-Jakob
disease (sCJD) is well documented, but there is not yet a systematic classification
of the disease variants. In a previous study, we showed that the polymorphic
codon 129 of the prion protein gene (PRNP), and two types of protease-resistant
prion protein (PrP(Sc)) with distinct physicochemical properties, are major
determinants of these variants. To define the full spectrum of variants,
we have examined a series of 300 sCJD patients. Clinical features, PRNP
genotype, and PrP(Sc) properties were determined in all subjects. In 187,
we also studied neuropathological features and immunohistochemical pattern
of PrP(Sc) deposition. Seventy percent of subjects showed the classic CJD
phenotype, PrP(Sc) type 1, and at least one methionine allele at codon
129; 25% of cases displayed the ataxic and kuru-plaque variants, associated
to PrP(Sc) type 2, and valine homozygosity or heterozygosity at codon 129,
respectively. Two additional variants, which included a thalamic form of
CJD and a phenotype characterized by prominent dementia and cortical pathology,
were linked to PrP(Sc) type 2 and methionine homozygosity. Finally, a rare
phenotype characterized by progressive dementia was linked to PrP(Sc) type
1 and valine homozygosity. The present data demonstrate the existence of
six phenotypic variants of sCJD. The physicochemical properties of PrP(Sc)
in conjunction with the PRNP codon 129 genotype largely determine this
phenotypic variability, and allow a molecular classification of the disease
variants.
-
- PMID: 10443888
-
- http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10443888&dopt=Abstract
-
- 1 million tse/bse rapid test annually for five years,
- IF you want the truth.
-
- CJD/TSEs made reportable in every state.
-
- Diagnosis and Reporting of Creutzfeldt-Jakob Disease
T. S. Singeltary,
- Sr; D. E. Kraemer; R. V. Gibbons, R. C. Holman, E. D.
Belay, L. B.
- Schonberger
-
- http://jama.ama-assn.org/issues/v285n6/ffull/jlt0214-2.html
-
- CJD/TSE Questionnaire to all CJD victims & families
- this CJD Questionnaire MUST ASK REAL QUESTON AS TO
- PERTAINING TO ROUTE/SOURCE OF OF ALL CJD/TSEs
-
- TSS MADCOW NEWS
-
- http://www.vegsource.com/talk/madcow/index.html
-
- CJD WATCH
-
- http://www.fortunecity.com/healthclub/cpr/349/part1cjd.htm
-
- CJD Watch NEWS
-
- http://disc.server.com/Indices/167318.html
-
- NEW SCIENTIST MAGAZINE 4/02/01
-
- NEW SCIENTIST EDITORIAL PAGE 3
-
- MAD SHEEP DISEASE?
-
-
- IF THERE is one categorical pronouncement you
- can safely make about prion diseases like BSE
- or CJD, it is that one should not make
- categorical pronouncements. "British beef is
- safe" and "there is no BSE in Germany"
come
- to mind. Now there are two more: "scrapie is
- safe", and "people don't catch sporadic CJD".
- Scrapie is the most widespread prion
- disease, infecting untold numbers of
- sheep worldwide. Sporadic CJD is the
- old-fashioned pre-BSE kind that is supposed
- to happen spontaneously in unlucky people.
- But a surprise observation in France suggests
- some sCJD cases--though by no means all--may
- be linked to scrapie after all (see p 4).
-
- For years, British authorities asserted that
- BSE was harmless because it was a form of
- scrapie. In fact, the only evidence scrapie
- is safe is some broad-brush epidemiology, good
- as far as it goes but unable to reveal
- occasional risks for some people from some
- sheep. Alarm bells should have rung in 1980
- when researchers gave monkeys scrapie by
- feeding them infected brains. But that
- research, like so much other work on
- prion diseases, was never followed up.
- We still have little idea what BSE does
- in pigs and chickens. The Queniborough
- vCJD outbreak (see p 5) would be easier
- to understand if we knew how much brain
- we must eat to be infected. As for scrapie,
- it shouldn't take a chance finding to
- tell us that there may be dangerous sheep
- out there.
-
-
- Suspect symptoms
-
- What if you can catch old-fashioned CJD by
- eating meat from a sheep infected with scrapie?
-
- Exclusive from New Scientist magazine
-
- Four years ago, Terry Singeltary watched his
- mother die horribly from a degenerative brain disease.................
-
- Full text url follows
- By Debora MacKenzie
-
- Suspect Symptoms
-
- http://www.newscientist.com/hottopics/bse/suspectsymptoms.jsp
-
- if url dead, go here for 'SUSPECT SYMPTOMS'
-
- you can access article here also;
-
- http://www.organicconsumers.org/meat/scrapiecjd.cfm
-
- you can access article here also;
-
- http://www.vegancowboy.org/TSS-SuspectSymptoms.html
-
- Then follow up with PNAS studies from which
- new scientist article written from --
-
- Published online before print March 20, 2001
- Proc. Natl. Acad. Sci. USA, 10.1073/pnas.041490898
- Abstract of this Article
- Reprint (PDF) Version of this Article
- Similar articles found in:
- PNAS Online
- PubMed
- PubMed Citation
- Search Medline for articles by:
- Lasmézas, C. I. || Deslys, J.-P.
- Alert me when:
- new articles cite this article
- Download to Citation Manager
- Neurobiology
- Adaptation of the bovine spongiform encephalopathy agent
to primates and
- comparison with Creutzfeldt- Jakob disease: Implications
for human health
- Corinne Ida Lasmézas*, [dagger] , Jean-Guy Fournier*,
Virginie Nouvel*,
- Hermann Boe*, Domíníque Marcé*,
François Lamoury*, Nicolas Kopp [Dagger
- ] , Jean-Jacques Hauw§, James Ironside¶, Moira
Bruce [||] , Dominique
- Dormont*, and Jean-Philippe Deslys*
-
- * Commissariat à l'Energie Atomique, Service de
Neurovirologie,
- Direction des Sciences du Vivant/Département de
Recherche Medicale,
- Centre de Recherches du Service de Santé des Armées
60-68, Avenue du
- Général Leclerc, BP 6, 92 265 Fontenay-aux-Roses
Cedex, France; [Dagger
- ] Hôpital Neurologique Pierre Wertheimer, 59, Boulevard
Pinel, 69003
- Lyon, France; § Laboratoire de Neuropathologie,
Hôpital de la
- Salpêtrière, 83, Boulevard de l'Hôpital,
75013 Paris, France; ¶
- Creutzfeldt-Jakob Disease Surveillance Unit, Western
General Hospital,
- Crewe Road, Edinburgh EH4 2XU, United Kingdom; and [||]
Institute for
- Animal Health, Neuropathogenesis Unit, West Mains Road,
Edinburgh EH9
- 3JF, United Kingdom
-
- Edited by D. Carleton Gajdusek, Centre National de la
Recherche
- Scientifique, Gif-sur-Yvette, France, and approved December
7, 2000
- (received for review October 16, 2000)
-
- Abstract
- Top
- Abstract
- Introduction
- Materials and Methods
- Results
- Discussion
- Conclusions
- References
-
- There is substantial scientific evidence to support the
notion that
- bovine spongiform encephalopathy (BSE) has contaminated
human beings,
- causing variant Creutzfeldt-Jakob disease (vCJD). This
disease has
- raised concerns about the possibility of an iatrogenic
secondary
- transmission to humans, because the biological properties
of the
- primate-adapted BSE agent are unknown. We show that (i)
BSE can be
- transmitted from primate to primate by intravenous route
in 25 months,
- and (ii) an iatrogenic transmission of vCJD to humans
could be readily
- recognized pathologically, whether it occurs by the central
or
- peripheral route. Strain typing in mice demonstrates
that the BSE agent
- adapts to macaques in the same way as it does to humans
and confirms
- that the BSE agent is responsible for vCJD not only in
the United
- Kingdom but also in France. The agent responsible for
French iatrogenic
- growth hormone-linked CJD taken as a control is very
different from vCJD
- but is similar to that found in one case of sporadic
CJD and one sheep
- scrapie isolate. These data will be key in identifying
the origin of
- human cases of prion disease, including accidental vCJD
transmission,
- and could provide bases for vCJD risk assessment.
-
- Introduction
- Top
- Abstract
- Introduction
- Materials and Methods
- Results
- Discussion
- Conclusions
- References
-
- The recognition of a variant of the human transmissible
spongiform
- encephalopathy (TSE) Creutzfeldt-Jakob Disease (vCJD)
in the U.K. in
- 1996 raised the major concern that it would correspond
to human
- infection with the agent responsible for bovine spongiform
- encephalopathy (BSE; ref. 1). Transmission of BSE to
macaques provided
- the first experimental evidence as it produced a disease
close to vCJD
- in humans (2). Strain typing in inbred mice (consisting
of measuring the
- incubation period and establishing lesion profiles corresponding
to the
- strain-specific distribution of brain vacuolation) allows
reliable
- identification of TSE strains (3). This method, together
with
- biochemical methods, has revealed a single phenotype
for the agents of
- BSE and the British cases of vCJD (4-6). Mice expressing
only the bovine
- prion protein (PrP) were highly susceptible to vCJD and
BSE, which
- induced the same disease (7). Thus, it is now well established
that BSE
- has caused vCJD, probably by alimentary contamination.
In this respect,
- the finding of abnormal PrP labeling in the gastrointestinal
tract and
- lymphatic tissues of orally BSE-contaminated lemurs shows
that the BSE
- agent can infect primates by the oral route (8). About
1 million
- contaminated cattle may have entered the human food chain,
and the
- future number of vCJD cases could range from 63 to 136,000
depending on
- the incubation period of BSE in humans (9). Unlike sporadic
CJD (sCJD)
- and iatrogenic CJD (iCJD) linked to the administration
of contaminated
- growth hormone extracted from human hypophyses, in vCJD,
the infectious
- agent seems to be widely distributed in lymphoid organs,
as pathological
- PrP (PrPres) can be detected in tonsils, lymph nodes,
spleen, and
- appendix even in the preclinical phase of the disease
(10, 11). This
- raises a public health issue with regard to the risk
of iatrogenic
- transmission of vCJD through surgical instruments, grafts,
blood
- transfusion, or parenteral administration of biological
products of
- human origin. However, this risk is difficult to assess,
because it
- largely depends on factors such as the virulence of the
BSE agent
- adapted to primates and the efficiency of secondary transmission
to
- humans by a peripheral route such as the i.v. one. A
further issue is
- whether vCJD accidentally acquired from humans would
be recognized. The
- latter poses the question of a phenotypic variation of
the BSE agent
- after successive transmissions in humans: does it retain
its strain
- characteristics, and does it induce a pathology similar
to that observed
- in the previous host? A 9-year history of transmission
of BSE to
- primates and mice enables us today to clarify a number
of these
- important points.
-
- Although BSE has mainly affected the U.K., two definite
cases and one
- probable case of vCJD have now been reported in France
in people who
- have never resided in the U.K. (12, 13). We strain-typed
the first of
- these cases to establish its origin. Strain typing in
C57BL/6 mice of
- BSE, French, and British vCJD was compared with that
of BSE passaged in
- nonhuman primates, thus allowing us to study the effect
of serial
- passages in primates. Comparisons were also made with
French cases of
- sCJD and iCJD and two strains of scrapie (one of French
and one of U.S.
- origin). Our findings provide experimental demonstration
that the same
- agent, namely that responsible for the cattle disease
BSE, has caused
- vCJD both in France and in the U.K., in line with biochemical
data and
- with the fact that, until 1996, about 10% of the beef
consumed in France
- was imported from the U.K. We found that the BSE agent
in nonhuman
- primates is similar to that causing vCJD in humans and
tends to evolve
- rapidly toward a primate-adapted variant. Furthermore,
we showed that
- the strain responsible for iCJD is closely related to
that of one
- patient with sCJD, and, more unexpectedly, that these
agents were
- similar to the French scrapie strain studied (but different
from the
- U.S. scrapie strain). This finding requires a cautious
interpretation
- for several reasons, not least because of the inevitably
limited number
- of TSE strains that can be studied by such a cumbersome
method as strain
- typing. Nonetheless, it also prompts reconsideration
of the possibility
- that, in some instances, sheep and human TSEs can share
a common origin.
-
- snip...
-
- http://www.pnas.org/cgi/content/full/041490898v1
-
- STATEMENT OF DR HELEN GRANT MD FRCP
- ISSUED 13/05/1999
-
- BSE INQUIRY
-
- http://www.bseinquiry.gov.uk/files/ws/s410.pdf
- http://www.bseinquiry.gov.uk/files/ws/s410x.pdf
-
- http://www.bseinquiry.gov.uk/evidence/ws/ws8.htm
-
- CWD to CJD in humans (why not?), as easy as BSE/Scrapie;
-
- The EMBO Journal, Vol. 19, No. 17 pp. 4425-4430, 2000
- © European Molecular Biology Organization
-
- Evidence of a molecular barrier limiting
- susceptibility of humans, cattle and sheep to
- chronic wasting disease
-
- G.J. Raymond1, A. Bossers2, L.D. Raymond1, K.I. O?Rourke3,
- L.E. McHolland4, P.K. Bryant III4, M.W. Miller5, E.S.
Williams6, M.
- Smits2
- and B. Caughey1,7
-
- 1NIAID/NIH Rocky Mountain Laboratories, Hamilton, MT
59840,
- 3USDA/ARS/ADRU, Pullman, WA 99164-7030, 4USDA/ARS/ABADRL,
- Laramie, WY 82071, 5Colorado Division of Wildlife, Wildlife
Research
- Center, Fort Collins, CO 80526-2097, 6Department of Veterinary
Sciences,
- University of Wyoming, Laramie, WY 82070, USA and 2ID-Lelystad,
- Institute for Animal Science and Health, Lelystad, The
Netherlands
- 7Corresponding author e-mail: bcaughey@nih.gov Received
June 7, 2000;
- revised July 3, 2000; accepted July 5, 2000.
-
- Abstract
-
- Chronic wasting disease (CWD) is a transmissible
- spongiform encephalopathy (TSE) of deer and elk,
- and little is known about its transmissibility to other
- species. An important factor controlling
- interspecies TSE susceptibility is prion protein (PrP)
- homology between the source and recipient
- species/genotypes. Furthermore, the efficiency with which
- the protease-resistant PrP (PrP-res) of one
- species induces the in vitro conversion of the normal
PrP
- (PrP-sen) of another species to the
- protease-resistant state correlates with the cross-species
- transmissibility of TSE agents. Here we
- show that the CWD-associated PrP-res (PrPCWD) of cervids
- readily induces the conversion of recombinant cervid
PrP-sen
- molecules to the protease-resistant state in accordance
- with the known transmissibility of CWD between cervids.
In contrast,
- PrPCWD-induced conversions of human and bovine PrP-sen
were
- much less efficient, and conversion of ovine PrP-sen
was
- intermediate. These results demonstrate a barrier at
the
- molecular level that should limit the susceptibility
of these non-cervid
- species to CWD.
-
- snip...
-
- Clearly, it is premature to draw firm conclusions about
CWD
- passing naturally into humans, cattle and sheep, but
the present
- results suggest that CWD transmissions to humans would
be as
- limited by PrP incompatibility as transmissions of BSE
or sheep
- scrapie to humans. Although there is no evidence that
sheep
- scrapie has affected humans, it is likely that BSE has
caused variant
- CJD in 74 people (definite and probable variant CJD cases
to
- date according to the UK CJD Surveillance Unit). Given
the
- presumably large number of people exposed to BSE infectivity,
- the susceptibility of humans may still be very low compared
with
- cattle, which would be consistent with the relatively
inefficient
- conversion of human PrP-sen by PrPBSE. Nonetheless, since
- humans have apparently been infected by BSE, it would
seem prudent
- to take reasonable measures to limit exposure of humans
- (as well as sheep and cattle) to CWD infectivity as has
been
- recommended for other animal TSEs.
-
- snip...
-
- http://www.emboj.org/current.shtml
-
- Scrapie to Humans?
-
- http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retriev
- e&db=PubMed&list_uids=3915057&dopt=Abstract
-
- My submission to federal gov. on BSE and
- the 'lack of' surveillance;
-
- https://199.132.50.48/E-Commen.nsf/($All)?OpenView
-
- https://199.132.50.48/E-Commen.nsf/8178b1c14b1e9b6b852
- 5624f0062fe9f/c147d3037a26dfe285256ab000769557?OpenDocument
-
- Houston Chronicle article Aug. 5, 2001
-
- MAD COW DISEASE: Could It Happen Here?
-
- 'ARCHIVED'
-
- http://www.chron.com/cs/CDA/story.hts/metropolitan/991714
-
- go here for chronicle article;
-
- http://www.organicconsumers.org/madcow/crusade8501.cfm
-
- http://www.vegancowboy.org/TSS-MadCowHere.htm
-
- TSS
- ====
-
- From Rense.com -
-
- Mad Cow Patient Placed In Connecticut Hospice
- From Patricia Doyle, PhD
- dr_p_doyle@hotmail.com
- 1-20-3
-
- From Jean
- To Patricia Doyle
- dr_p_doyle@hotmail.com
- Subject: Mad cow in CT
-
- Dear Patty,
-
- I have read the website and listened to Jeff Rense's
radio program on the Net for years. I thank you for your dedication and
information. I am a Hospice care giver in southeast CT and today we were
oriented on a new patient who has Mad Cow Disease.
-
- I thought I was hearing things as I had only heard about
it on the Net. We were told it is only the 2nd time we (Hospice) had a
patient with this disease. It is in the US...in CT anyway!
-
- Is there anything I need to know about the care of someone
with it. I have cared for AIDS patients...
- I am not afraid. However, I would like to be made aware
of precautions (I should take).
-
- Please respond...and thank you again, Jean
-
- From Patricia Doyle, PhD
- 1-20-3
-
- Hello, Jeff - I thought you would be interested in this
email. I wrote to her and asked some questions and gave some advice. I
was tempted to tell her to "run for her life" (but didn't). When
I hear from her, I will let you know.
-
- I have a feeling that because it is a hospice, a place
where people usually live out their last days, infectious control may not
be as stringent as hospitals, etc.
-
- I did ask if the CDC is involved and also origin of country
of the patient. If the patient is from the US and has NOT been out of the
country, etc. it is very very obvious that she or he acquired the disease
here.
-
- I did advise Jean to ask attending physician if it is
nvCJD, sCJD or CJD...and also advised she tell people about the indestructibility
of prions.
-
- Many of the GPs and family physicians - even specializing
doctors - don't know very much about prions, prion misfolding, etc. I am
wondering HOW they are disposing of the patient's personal articles, instruments
used on the patient, etc., etc. Are they washing his/her bedding in the
general laundry?
-
- Also, another CJD death in Michigan. Someone sent me
an actual obituary of a CJD death. I was surprised that CJD was given as
cause of death. Usually, an obit terms the death as coming "after
a brief illness."
-
- Patty
-
-
- Patricia A. Doyle, PhD
- Please visit my "Emerging Diseases" message
board at:
- http://www.clickitnews.com/emergingdiseases/index.shtml
- Zhan le Devlesa tai sastimasa
- Go with God and in Good Health
-
-
- Comment
-
- From Patricia Doyle, PhD
- dr_p_doyle@hotmail.com
- 1-22-3
-
- Hello, Jeff - I would like to take this opportunity to
applaud the work and research being done by Terry S. Singeltary Sr. He
has worked very hard, and, with tireless dedication. He has tried to address
the situation of "mad cow" disease, i.e. animal and human prion
disease by enlightening the public and also, trying to get the USDA/APHSI/ARS
etal to admit that there IS a problem with mad cow, or mutating prion disease
in the US.
-
- There is not very much that I can add to Terry Singeltary's
article. He has been very correct in his assessment of the problems of
mad cow in the US, and also his assertion that the USDA/APHIS etal is hiding
the truth from the public.
-
- Kudos to Terry and those who work to bring the truth
to the public.
-
- Thank you,
- Patricia Doyle
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