Monday, August 20, 2012
CASE REPORTS CREUTZFELDT-JAKOB DISEASE: AN UNDER-RECOGNIZED CAUSE OF
DEMENTIA
To the Editor: Creutzfeldt-Jakob disease (CJD) is a progressive
neurodegenerative condition with negative prognosis caused by an isoform of the
prion protein.1,2 Partly because of its low prevalence, physicians often neglect
it in the differential diagnosis of cognitive decline and as possible cause of
dementia in older persons. CJD is usually characterized by rapidly progressive
impairment of cognitive function associated with myoclonus, pyramidal, and
extrapyramidal dysfunction; cerebellar and visual disturbances; akinetic mutism,
or any combination of these. This report presents a paradigmatic case of CJD
recently diagnosed at the Department of Geriatrics, University Hospital Agostino
Gemelli (Rome, Italy).
CASE REPORT A 72-year-old man was admitted to the Geriatric Acute Care Unit
in September 2009 because of rapid cognitive decline (characterized by
confusion, memory impairment, and visual hallucinations) that had started
suddenly the previous month. He had been previously admitted to two other
hospitals for these symptoms. He had been hastily discharged from both with a
primary diagnosis of “Alzheimer’s disease” and referred to specific outpatient
clinics. Upon admission, he was unable to walk without assistance and showed
behavioral disorders (irritability, mood swings, psychomotor agitation). He had
congestive heart failure, chronic atrial fibrillation, chronic obstructive
pulmonary disease, and obesity. He had also had a heart pacemaker VVI implanted
2 years before for sick sinus syndrome. Routine blood tests and urinalysis were
substantially within normal ranges. He underwent two serial
electroencephalograms (EEGs), which detected periodic sharp wave complexes.
Because magnetic resonance imaging could not be done because of his pacemaker, a
head computed tomography (CT) scan was performed, revealing abnormal density
signaling in the white matter (in particular at the subcortical region and
semioval center) with slight dilatation of ventricles. Myoclonus, rigidity,
postural instability with cerebellar ataxia, pyramidal and extrapyramidal signs,
and speech disorders progressively appeared during the first days of his
hospital stay. He subsequently developed a hypokinetic, mute state and cortical
blindness. Lumbar puncture could not be performed because of the rapid
deterioration of his clinical condition and also considering the presence of the
spikes in the EEGs. He died from pneumonia 4 months after the onset of cognitive
decline. Upon autopsy, macroscopic examination revealed moderate cortical
atrophy of the brain. Histological examination showed spongiform degeneration,
neuronal loss and astroglial proliferation (Figure 1A). Immunohistochemical
examination showed the presence of abnormal deposits of prion protein (Figure
1B). Alzheimer’s disease–type pathology with early signs of beta-amyloid
deposits was also observed.
DISCUSSION By sharing common features with other dementia types3–7 and
being rare8 (with an incidence rate estimated as one to two cases per million
people per year), CJD can easily be missed or misdiagnosed. The diagnosis of CJD
is based on clinical and instrumental (EEG, cerebrospinal fluid, magnetic
resonance imaging) parameters,9 but special attention is required to make a
correct diagnosis. A definite diagnosis requires neuropathological demonstration
of the presence of the prion protein. In the current case, the presence of CJD
was determined by comprehensively assessing the patient and building up the
diagnosis based on the presence of rapid cognitive decline and neurological
features. These elements were all present (to differing extents) at the previous
in-hospital evaluations the patient received for the same condition, but his
condition was too quickly labeled as “Alzheimer’s disease.” Moreover, the EEG
was a useful diagnostic tool to validate the clinical hypothesis. It could be
argued that reaching the correct diagnosis did not change the history of the
patient, but the determination of the likely etiology of dementia is important
in establishing the prognosis and management of the patient.10 Although no known
treatment is currently available for CJD, an earlier diagnosis might have
allowed a more-suitable allocation of the patient to a second-level healthcare
facility better designed to respond to his needs.
Therefore, diagnostic suspicion of CJD should always be considered
(regardless of age) in any patient presenting with rapidly progressive dementia,
especially if associated with other neurological signs (pyramidal,
extra-pyramidal, or cerebellar). The present case emphasizes the need to
carefully and comprehensively approach the differential diagnosis of dementia to
avoid incorrect diagnoses that may merely increase the burden of the disease on
a patient and his or her relatives. A prompt and correct diagnosis may then
allow the optimal allocation of the patient to the proper clinical setting.
Finally, potentiating of facilities and resources able to take care of older
adults rapidly and efficiently after their in-hospital stay is crucial in an
aging society.
Francesco Cerullo, MD Giovanni Gambassi, MD, PhD Department of
Gerontology, Geriatrics and Physiatry Catholic University of the Sacred Heart
Rome, Italy Franca Del Nonno, MD Andrea Baiocchini, MD Department of Pathology,
National Institute for Infectious Diseases, Istituto Di Ricovero e Cura a
Carattere Scientifico “Lazzaro Spallanzani” Rome, Italy Piero Parchi, MD, PhD
Department of Neurological Science University of Bologna Bologna, Italy Matteo
Cesari, MD, PhD Institut du Vieillissement, Universite´ de Toulouse Toulouse,
France
ACKNOWLEDGMENTS
Conflict of Interest: The editor in chief has reviewed the conflict of
interest checklist provided by the authors and has determined that the authors
have no financial or any other kind of personal conflicts with this paper.
Author Contributions: Francesco Cerullo, Giovanni Gambassi: Diagnosis and
preparation of manuscript. Franca Del Nonno, Andrea Baiocchini, Piero Parchi:
Diagnosis. Matteo Cesari: Preparation of manuscript. All of the authors read the
final version of the manuscript. Sponsor’s Role: None.
REFERENCES
1. Glatzel M, Stoeck K, Seeger H et al. Human prion diseases: Molecular
and clinical aspects. Arch Neurol 2005;62:545–552. 2. Zou WQ, Gambetti P. Prion:
The chameleon protein. Cell Mol Life Sci 2007;64:3266–3270. 3. Crecelius C.
Diagnosis and treatment of non-Alzheimer’s dementias. J Am Med Dir Assoc
2003;4:H25–H29. 4. Geschwind M, Haman A, Miller B. Rapidly progressive dementia.
Neurol Clinic 2007;25:783–789. 5. Iida T, Doh-ura K, Kawashima T et al. An
atypical case of sporadic Creutzfeldt-Jakob disease with Parkinson’s disease.
Neuropathology 2001; 21:294–297. 6. Josephs KA, Tsuboi Y, Dickson DW.
Creutzfeldt-Jakob disease presenting as progressive supranuclear palsy. Eur J
Neurol 2004;11:343–346. 7. Marin LF, Felı´cio AC, Bichuetti DB et al. Clinical
findings in Creutzfeldt- Jakob disease mimicking dementia with Lewy bodies. Arq
Neuropsiquiatr 2008;66:741–743. 8. Pruisiner SB. Shattuck
lecture-neurodegenerative diseases and prions. N Engl J Med 2001;344:1516–1526.
9. Zerr I, Kallenberg K, Summers DM et al. Updated clinical diagnostic criteria
for sporadic Creutzfeldt-Jakob disease. Brain 2009;132:2659– 2668. 10. Espinoza
RT. Improving the recognition and management of dementia in long-term care:
Obstacles and opportunities. J Am Med Dir Assoc 2006;7:128–130.
Letters
JAMA. 2001;285(6):733-734. doi: 10.1001/jama.285.6.733
Diagnosis and Reporting of Creutzfeldt-Jakob Disease
Terry S. Singeltary, Sr Bacliff, Tex
Since this article does not have an abstract, we have provided the first
150 words of the full text.
KEYWORDS: creutzfeldt-jakob disease, diagnosis.
To the Editor: In their Research Letter, Dr Gibbons and colleagues1
reported that the annual US death rate due to Creutzfeldt-Jakob disease (CJD)
has been stable since 1985. These estimates, however, are based only on reported
cases, and do not include misdiagnosed or preclinical cases. It seems to me that
misdiagnosis alone would drastically change these figures. An unknown number of
persons with a diagnosis of Alzheimer disease in fact may have CJD, although
only a small number of these patients receive the postmortem examination
necessary to make this diagnosis. Furthermore, only a few states have made CJD
reportable. Human and animal transmissible spongiform encephalopathies should be
reportable nationwide and internationally.
References 1. Gibbons RV, Holman RC, Belay ED, Schonberger LB.
Creutzfeldt-Jakob disease in the United States: 1979-1998. JAMA.
2000;284:2322-2323.
Published March 26, 2003
RE-Monitoring the occurrence of emerging forms of Creutzfeldt-Jakob disease
in the United States
Terry S. Singeltary, retired (medically)
I lost my mother to hvCJD (Heidenhain Variant CJD). I would like to comment
on the CDC's attempts to monitor the occurrence of emerging forms of CJD.
Asante, Collinge et al [1] have reported that BSE transmission to the
129-methionine genotype can lead to an alternate phenotype that is
indistinguishable from type 2 PrPSc, the commonest sporadic CJD. However, CJD
and all human TSEs are not reportable nationally. CJD and all human TSEs must be
made reportable in every state and internationally. I hope that the CDC does not
continue to expect us to still believe that the 85%+ of all CJD cases which are
sporadic are all spontaneous, without route/source. We have many TSEs in the USA
in both animal and man. CWD in deer/elk is spreading rapidly and CWD does
transmit to mink, ferret, cattle, and squirrel monkey by intracerebral
inoculation. With the known incubation periods in other TSEs, oral transmission
studies of CWD may take much longer. Every victim/family of CJD/TSEs should be
asked about route and source of this agent. To prolong this will only spread the
agent and needlessly expose others. In light of the findings of Asante and
Collinge et al, there should be drastic measures to safeguard the medical and
surgical arena from sporadic CJDs and all human TSEs. I only ponder how many
sporadic CJDs in the USA are type 2 PrPSc?
Published March 26, 2003
THE PATHOLOGICAL PROTEIN
BY Philip Yam
Yam Philip Yam News Editor Scientific American www.sciam.com
Answering critics like Terry Singeltary, who feels that the U.S. under-
counts CJD, Schonberger conceded that the current surveillance system has errors
but stated that most of the errors will be confined to the older population.
CHAPTER 14
Laying Odds
Are prion diseases more prevalent than we thought?
Researchers and government officials badly underestimated the threat that
mad cow disease posed when it first appeared in Britain. They didn't think
bovine spongiform encephalopathy was a zoonosis-an animal disease that can
sicken people. The 1996 news that BSE could infect humans with a new form of
Creutzfeldt-Jakob disease stunned the world. It also got some biomedical
researchers wondering whether sporadic CJD may really be a manifestation of a
zoonotic sickness. Might it be caused by the ingestion of prions, as variant CJD
is?
Revisiting Sporadic CJD
It's not hard to get Terry Singeltary going. "I have my conspiracy
theories," admitted the 49-year-old Texan.1 Singeltary is probably the nation's
most relentless consumer advocate when it comes to issues in prion diseases. He
has helped families learn about the sickness and coordinated efforts with
support groups such as CJD Voice and the CJD Foundation. He has also connected
with others who are critical of the American way of handling the threat of prion
diseases. Such critics include Consumers Union's Michael Hansen, journalist John
Stauber, and Thomas Pringle, who used to run the voluminous www.madcow. org Web
site. These three lend their expertise to newspaper and magazine stories about
prion diseases, and they usually argue that prions represent more of a threat
than people realize, and that the government has responded poorly to the dangers
because it is more concerned about protecting the beef industry than people's
health.
Singeltary has similar inclinations. ...
snip...
THE PATHOLOGICAL PROTEIN
Hardcover, 304 pages plus photos and illustrations. ISBN 0-387-95508-9
June 2003
BY Philip Yam
CHAPTER 14 LAYING ODDS
Answering critics like Terry Singeltary, who feels that the U.S. under-
counts CJD, Schonberger conceded that the current surveillance system has errors
but stated that most of the errors will be confined to the older population.
14th ICID International Scientific Exchange Brochure -
Final Abstract Number: ISE.114
Session: International Scientific Exchange
Transmissible Spongiform encephalopathy (TSE) animal and human TSE in North
America update October 2009
T. Singeltary
Bacliff, TX, USA
Background:
An update on atypical BSE and other TSE in North America. Please remember,
the typical U.K. c-BSE, the atypical l-BSE (BASE), and h-BSE have all been
documented in North America, along with the typical scrapie's, and atypical
Nor-98 Scrapie, and to date, 2 different strains of CWD, and also TME. All these
TSE in different species have been rendered and fed to food producing animals
for humans and animals in North America (TSE in cats and dogs ?), and that the
trading of these TSEs via animals and products via the USA and Canada has been
immense over the years, decades.
Methods:
12 years independent research of available data
Results:
I propose that the current diagnostic criteria for human TSEs only enhances
and helps the spreading of human TSE from the continued belief of the UKBSEnvCJD
only theory in 2009. With all the science to date refuting it, to continue to
validate this old myth, will only spread this TSE agent through a multitude of
potential routes and sources i.e. consumption, medical i.e., surgical, blood,
dental, endoscopy, optical, nutritional supplements, cosmetics etc.
Conclusion:
I would like to submit a review of past CJD surveillance in the USA, and
the urgent need to make all human TSE in the USA a reportable disease, in every
state, of every age group, and to make this mandatory immediately without
further delay. The ramifications of not doing so will only allow this agent to
spread further in the medical, dental, surgical arena's. Restricting the
reporting of CJD and or any human TSE is NOT scientific. Iatrogenic CJD knows NO
age group, TSE knows no boundaries. I propose as with Aguzzi, Asante, Collinge,
Caughey, Deslys, Dormont, Gibbs, Gajdusek, Ironside, Manuelidis, Marsh, et al
and many more, that the world of TSE Transmissible Spongiform Encephalopathy is
far from an exact science, but there is enough proven science to date that this
myth should be put to rest once and for all, and that we move forward with a new
classification for human and animal TSE that would properly identify the
infected species, the source species, and then the route.
CJD Singeltary submission to PLOS ;
No competing interests declared.
see full text ;
seems the sites showing the cases in other EU countries from sporadic CJD
have been taken down. however, from my files ;
IF we look at sporadic incidence of CJD in UK from 1993 to 2003, the
incidence rose from 37 in 1993 to 77 in 2003. THIS seems to show an increase to
me? I do not understand the statement ;
However, in the period following the first published description of vCJD in
1996, there was no increasing trend in the reported annual number of U.K.
sporadic CJD deaths (52).
IF we go further and look at some of the other documented BSE countries,
you will the increase of sporadic CJD there as well ;
Canada from 2 to 25
France from 35 to 108
Germany 21+ to 96
Italy 27 to 76
snip...
5 Includes 18 cases in which the diagnosis is pending, and 18 inconclusive
cases;
6 Includes 23 (22 from 2010) cases with type determination pending in which
the diagnosis of vCJD has been excluded.
Please notice where sporadic CJD cases in 1996 went from 28 cases, to 215
cases in 2009, the highest recorded year to date. sporadic CJD is on a steady
rise, and has been since 1996.
I also urge you to again notice these disturbing factors in lines 5 and 6
;
5 Includes 18 cases in which the diagnosis is pending, and 18 inconclusive
cases;
6 Includes 23 (22 from 2010) cases with type determination pending in which
the diagnosis of vCJD has been excluded.
========end=====tss=====2011
From: Terry S. Singeltary Sr.
Sent: Wednesday, May 16, 2012 3:29 PM
To: BSE-L@LISTS.AEGEE.ORG
Subject: [BSE-L] Alzheimer’s disease and Transmissible Spongiform
Encephalopathy prion disease, Iatrogenic, what if ?
Proposal ID: 29403
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion
disease, Iatrogenic, what if ?
Background
Alzheimer’s disease and Transmissible Spongiform Encephalopathy disease
have both been around a long time, and was discovered in or around the same time
frame, early 1900’s. Both disease, and it’s variants, in many cases are merely
names of the people that first discovered them. Both diseases are incurable and
debilitating brain disease, that are in the end, 100% fatal, with the
incubation/clinical period of the Alzheimer’s disease being longer than the TSE
prion disease. Symptoms are very similar, and pathology is very similar. I
propose that Alzheimer’s is a TSE disease of low dose, slow, and long incubation
disease, and that Alzheimer’s is Transmissible, and is a threat to the public
via the many Iatrogenic routes and sources. It was said long ago that the only
thing that disputes this, is Alzheimer’s disease transmissibility, or the lack
of. today, there is enough documented science (some confidential), that shows
that indeed Alzheimer’s is transmissible. The risk factor for friendly fire, and
or the pass-it-forward mode i.e. Iatrogenic transmission is a real threat, and
one that needs to be addressed immediately.
Methods
Through years of research, as a layperson, of peer review journals,
transmission studies, and observations of loved ones and friends that have died
from both Alzheimer’s and the TSE prion disease i.e. Heidenhain Variant
Creutzfelt Jakob Disease CJD.
Results
The likelihood of many victims of Alzheimer’s disease from the many
different Iatrogenic routes and modes of transmission as with the TSE prion
disease. TSE prion disease survives ashing to 600 degrees celsius, that’s around
1112 degrees farenheit. you cannot cook the TSE prion disease out of meat. you
can take the ash and mix it with saline and inject that ash into a mouse, and
the mouse will go down with TSE. Prion Infected Meat-and-Bone Meal Is Still
Infectious after Biodiesel Production as well. the TSE prion agent also survives
Simulated Wastewater Treatment Processes. IN fact, you should also know that the
TSE Prion agent will survive in the environment for years, if not decades. you
can bury it and it will not go away. TSE prion agent is capable of infected your
water table i.e. Detection of protease-resistant cervid prion protein in water
from a CWD-endemic area. it’s not your ordinary pathogen you can just cook it
out and be done with. that’s what’s so worrisome about Iatrogenic mode of
transmission, a simple autoclave will not kill this TSE prion agent.
Conclusions
There should be a Global Congressional Science round table event (one of
scientist and doctors et al only, NO CORPORATE, POLITICIANS ALLOWED) set up
immediately to address these concerns from the many potential routes and sources
of the TSE prion disease, including Alzheimer’s disease, and a emergency global
doctrine put into effect to help combat the spread of Alzheimer’s disease via
the medical, surgical, dental, tissue, and blood arena’s. All human and animal
TSE prion disease, including Alzheimer’s should be made reportable in every
state, and Internationally, WITH NO age restrictions. Until a proven method of
decontamination and autoclaving is proven, and put forth in use universally, in
all hospitals and medical, surgical arena’s, or the TSE prion agent will
continue to spread. IF we wait until science and corporate politicians wait
until politics let science _prove_ this once and for all, and set forth
regulations there from, we will all be exposed to the TSE Prion agents, if that
has not happened already. what’s the use of science progressing human life to
the century mark, if your brain does not work?
combined cannot exceed 350 Words
shortened to proper word count ;
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion
disease, Iatrogenic, what if ?
Background
Alzheimer’s disease and Transmissible Spongiform Encephalopathy disease
have both been around a long time, and was discovered in or around the same time
frame, early 1900’s. Both diseases are incurable and debilitating brain disease,
that are in the end, 100% fatal, with the incubation/clinical period of the
Alzheimer’s disease being longer (most of the time) than the TSE prion disease.
Symptoms are very similar, and pathology is very similar.
Methods
Through years of research, as a layperson, of peer review journals,
transmission studies, and observations of loved ones and friends that have died
from both Alzheimer’s and the TSE prion disease i.e. Heidenhain Variant
Creutzfelt Jakob Disease CJD.
Results
I propose that Alzheimer’s is a TSE disease of low dose, slow, and long
incubation disease, and that Alzheimer’s is Transmissible, and is a threat to
the public via the many Iatrogenic routes and sources. It was said long ago that
the only thing that disputes this, is Alzheimer’s disease transmissibility, or
the lack of. The likelihood of many victims of Alzheimer’s disease from the many
different Iatrogenic routes and modes of transmission as with the TSE prion
disease.
Conclusions
There should be a Global Congressional Science round table event set up
immediately to address these concerns from the many potential routes and sources
of the TSE prion disease, including Alzheimer’s disease, and a emergency global
doctrine put into effect to help combat the spread of Alzheimer’s disease via
the medical, surgical, dental, tissue, and blood arena’s. All human and animal
TSE prion disease, including Alzheimer’s should be made reportable in every
state, and Internationally, WITH NO age restrictions. Until a proven method of
decontamination and autoclaving is proven, and put forth in use universally, in
all hospitals and medical, surgical arena’s, or the TSE prion agent will
continue to spread. IF we wait until science and corporate politicians wait
until politics lets science _prove_ this once and for all, and set forth
regulations there from, we will all be exposed to the TSE Prion agents, if that
has not happened already.
end...tss
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion
disease, Iatrogenic, what if ?
source references
Ann N Y Acad Sci. 1982;396:131-43.
Alzheimer's disease and transmissible virus dementia (Creutzfeldt-Jakob
disease).
Brown P, Salazar AM, Gibbs CJ Jr, Gajdusek DC.
Abstract
Ample justification exists on clinical, pathologic, and biologic grounds
for considering a similar pathogenesis for AD and the spongiform virus
encephalopathies. However, the crux of the comparison rests squarely on results
of attempts to transmit AD to experimental animals, and these results have not
as yet validated a common etiology. Investigations of the biologic similarities
between AD and the spongiform virus encephalopathies proceed in several
laboratories, and our own observation of inoculated animals will be continued in
the hope that incubation periods for AD may be even longer than those of CJD.
BSE101/1 0136
IN CONFIDENCE
CMO
From: Dr J S Metters DCMO
4 November 1992
TRANSMISSION OF ALZHEIMER TYPE PLAQUES TO PRIMATES
CJD1/9 0185
Ref: 1M51A
IN STRICT CONFIDENCE
From: Dr. A Wight Date: 5 January 1993
Copies:
Dr Metters
Dr Skinner
Dr Pickles
Dr Morris
Mr Murray
TRANSMISSION OF ALZHEIMER-TYPE PLAQUES TO PRIMATES
Wednesday, January 5, 2011
ENLARGING SPECTRUM OF PRION-LIKE DISEASES Prusiner Colby et al 2011 Prions
David W. Colby1,* and Stanley B. Prusiner1,2
Tuesday, October 4, 2011
Molecular Psychiatry
advance online publication 4 October 2011; doi: 10.1038/mp.2011.120
De novo induction of amyloid-ß deposition in vivo
Our results suggest that some of the typical brain abnormalities associated
with AD can be induced by a prion-like mechanism of disease transmission through
propagation of protein misfolding. These findings may have broad implications
for understanding the molecular mechanisms responsible for the initiation of AD,
and may contribute to the development of new strategies for disease prevention
and intervention. Keywords: amyloid; prion; protein misfolding; disease
transmission
see more here ;
Wednesday, September 21, 2011
PrioNet Canada researchers in Vancouver confirm prion-like properties in
Amyotrophic Lateral Sclerosis (ALS)
snip...end
Thank You for accepting my submission
# 29403, Alzheimer’s disease and Transmissible Spongiform Encephalopathy
prion disease, Iatrogenic, what if ? and the opportunity to present it, at the
Alzheimer’s Association International Conference 2012 (AAIC), as a poster
presentation. However, with great sadness, I must regretfully decline the
invitation due to a medical reasons, and traveling to Canada, of which is not
possible. ...
Thank You,
With Kindest Regards,
I am sincerely,
Terry S. Singeltary Sr.
P.O. Box 42
Bacliff, Texas USA 77518
flounder9@verizon.net
From:
Sent: Saturday, April 07, 2012 8:20 PM
To: Terry S. Singeltary Sr.
Subject: RE: re-submission
Dear Terry,
Yes, your proposal was accepted as a poster presentation. Please decline
the invitation if appropriate.
Best Regards,
______________________________________
Alzheimer’s Association – National Office
225 North Michigan Avenue – Floor 17
Chicago, Illinois 60601
=============snip...end...source reference...# 29403==========
Wednesday, May 16, 2012
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion
disease, Iatrogenic, what if ?
Proposal ID: 29403
see the Duke, Pa, Yale, and Mexican study here, showing the misdiagnosis of
CJD TSE prion disease as Alzheimers ;
Monday, July 23, 2012
The National Prion Disease Pathology Surveillance Center July 2012
TSS
Saturday, August 18, 2012
RedCross Request Jerome H. Holland Laboratory is collecting small volumes of blood from patients afflicted with various forms of transmissible spongiform encephalopathies (TSE)/prion diseases and their blood-related family members 2012
RedCross Request Jerome H. Holland Laboratory is collecting small volumes
of blood from patients afflicted with various forms of transmissible spongiform
encephalopathies (TSE)/prion diseases and their blood-related family members 2012
UPDATED INFORMATION AUGUST 2012
REDCROSS REQUEST
The American National Red Cross (Red Cross) Jerome H. Holland Laboratory
for Biomedical Research in Rockville, Maryland is collecting small volumes of
blood from patients afflicted with various forms of transmissible spongiform
encephalopathies (TSE)/prion diseases and their blood-related family members.
The purpose of the research is to build a blood sample repository for studies on
ways to detect the presence of prion protein or other markers of the disease in
human blood.
Recent epidemiological evidence indicates that blood of patients with
variant form of Creutzfeldt-Jakob disease (vCJD), that is prevalent in the
United Kingdom, is infectious.
The questions about the possibility that blood from patients with the
sporadic and familial forms of TSE might also be infectious is still not
resolved even though 10 years of searching has not revealed any examples of
blood-related transmission from patients with these non-variant forms of
disease.
The development of a blood test to identify affected people in the
pre-clinical stage of disease could eliminate the uncertainty about TSE-related
blood safety. Some tests have been successful for testing animals infected with
TSEs, but in order to know if any test will be reliable in humans, we need to
test human blood.
CJD patients and their families are the only source of blood specimens that
can answer this question, and we therefore ask you to support our effort.
If you or an affected relative is interested in participating, please
contact the name listed below. No more than 50 ml of blood should be collected
at a location convenient to you through your own arrangements with your
physician and the blood sample should be sent to the Holland Laboratory at no
cost to you. The samples will be processed and stored, frozen indefinitely, at
the Holland Laboratory in Rockville, Maryland. The Red Cross will provide access
to only designated research staff at the Red Cross or other research groups that
have provided convincing evidence for a test to detect TSE in animals.
Participating individuals will NOT be notified about test results because
the tests that will be performed on blood are experimental and their
significance is not known and will remain uncertain for some years to come. The
CJD foundation will be notified of any publications coming from our research.
Contact information:
Dr. Larisa Cervenakova; Phone: 301-738-0765; e-mail:
cervenakl@usa.redcross.org
Dr. Larisa Cervenakova
Senior Scientist, Biomedical Services
American Red Cross
15601 Crabbs Branch Way
Rockville, MD 20855
(240) 314-3536 (p)
(240) 888-3615 (c)
(301) 610-4120 (f)
Coordinator for the CJD Lookback Study. The study is ongoing and we are
looking for blood donors who subsequently develop CJD.
Below is my contact information, please feel free to pass on my information
to those family members who want to participate in the Lookback Study.
Kerri Dorsey, MPH
Project Manager 1
American Red Cross
Holland Laboratory
Transmissible Disease Department
15601 Crabbs Branch Way
Rockville, MD 20855
Ph: 240-314-3523
Fax: 301-610-4121
END...TSS
CJD LOOKBACK STUDY
TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHIES ADVISORY COMMITTEE MEETING
Thursday, June 2, 1999
CHAIRMAN BROWN: My name is Dr. Paul Brown. Welcome to the FDA traveling
road show. We are asked yet once more by the FDA to consider a question of
theoretical risk in the absence of sufficient knowledge on which to base any
firm conclusion. The issue before us today is that of excluding categories of
American blood donors who have either visited or resided for longer periods of
time in Great Britain. The issue is sufficiently delicate, as you see that we
have been moved outside the Beltway. (Laughter.)snip... "Dr. Alan Williams is
employed by the American Red Cross, Holland Labs,and is Scientific Adviser for
the Florida Blood Services and Canadian Blood Services. In addition, he has
financial interests in firms that could be affected by the general discussions.
"Dr. Richard Race has financial interests in firms that could be affected by the
general discussions and is a public health science researcher. "In the event
that the discussions involve specific products or specific firms for which FDA
participants have a financial interest, the participants are aware of the need
to exclude themselves from such involvement. And their exclusion will be noted
for the public record. A copy of the waivers is available by written request
under the Freedom of Information Act. "With respect to all other meeting
participants, we ask in the interest of fairness that they address any current
or previous financial involvement with any firm whose product they may wish to
comment upon." So ends the reading of the conflict of interest statement. Dr.
Brown, I turn the meeting over to you.snip...
Sunday, June 3, 2012
A new neurological disease in primates inoculated with prion-infected blood
or blood components
Friday, June 29, 2012
Highly Efficient Prion Transmission by Blood Transfusion
price of prion poker goes up again $$$
Monday, June 11, 2012
Guidance for Industry Draft Guidance for Industry: Amendment to “Guidance
for Industry: Revised Preventive Measures to Reduce the Possible Risk of
Transmission of Creutzfeldt-Jakob Disease and Variant Creutzfeldt-Jakob Disease
by Blood and Blood Products”
Thursday, August 16, 2012
Blood products, collected from a donor who was at risk for variant
Creutzfeldt-Jakob disease ( vCJD) USA JUNE, JULY, AUGUST 2012
kind regards, terry
Monday, August 13, 2012
Summary results of the second national survey of abnormal prion prevalence in archived appendix specimens August 2012
Summary results of the second national survey of abnormal prion prevalence
in archived appendix specimens
In April 2008, the Spongiform Encephalopathy Advisory Committee (SEAC)
considered available prevalence data for variant Creutzfeldt-Jakob Disease
(vCJD) in the British population and advised that a second appendix survey,
using the same approach as a previous appendix tissue survey [1] on samples from
the 1941 to 1985 birth cohort, be undertaken to further refine the estimate for
the prevalence of subclinical infection [2].The second unlinked anonymous survey
of the prevalence of abnormal prion protein in archived appendix tissues has now
been completed and this summary provides an update to the interim results
published in September 2011 [3,4].
The survey examined appendices by immunohistochemistry from operations
conducted between 2000 and 2012 and collected from 41 hospitals throughout
England. Abnormal prion accumulation was detected within the follicular
dendritic cells of 16 appendices out of 32,441 suitable samples examined. None
of the positive appendices have come from the 176 known vCJD cases in the UK. In
line with the interim findings, the final overall prevalence estimate, 493 per
million (95% Confidence Interval (CI): 282 to 801 per million), remained
statistically consistent with results from the earlier appendix survey (237 per
million, 95%CI 49 to 692 per million) which examined samples from operations
performed between 1995 and 1999 [1]. The prevalence estimates by birth cohort
were 733 per million (95% CI: 269 to 1596 per million) in those born between
1941 and 1960 and 412 per million (95% CI: 198 to 758 per million) in those born
between 1961 and 1985: these results were also in line with the interim findings
[3,4].
The survey was conducted by a collaboration of the HPA, the Department of
Neurodegenerative Diseases at the UCL Institute of Neurology, the Animal Health
and Veterinary Laboratories Agency, the National Creutzfeldt-Jakob Disease
Research and Surveillance Unit, the Histopathology Department of Derriford
Hospital in Plymouth, and the MRC Prion Unit.
The final survey results have been considered by the Transmissible
Spongiform Encephalopathies Risk Assessment Sub-Group of the Advisory Committee
on Dangerous Pathogens, the successor to SEAC [5]. In summary, the estimated
prevalence range largely overlaps that from the first survey, but is narrower
with a higher central estimate (around 1 in 2000 compared with around 1 in
4000). The new survey also demonstrates the presence of prion protein across a
wider birth cohort than previously.
The hypothesis that the prevalence of abnormal prions found in both
appendix surveys to date is linked to the epidemic of BSE in cattle in Britain
can be tested directly by studying further appendix samples archived prior to
the BSE outbreak and samples from those born in 1996 or later by which time
measures had been put in place to protect the food chain [5].
References
1. Hilton DA, Ghani AC, Conyers L, Edwards P, McCardle L, Ritchie D, et al.
Prevalence of lymphoreticular prion protein accumulation in UK tissue samples. J
Pathol 2004; 203: 733-9.
2. Spongiform Encephalopathy Advisory Committee (SEAC). Position Statement.
Prevalence of subclinical variant Creutzfeldt-Jakob Disease infections. August
2008. SEAC position statement.
3. HPA. Interim data from the current national survey of abnormal prion
prevalence in archived appendix specimens. September 2011. Health Protection
Report 5(36). Available at: http://www.hpa.org.uk/hpr/archives/2011/news3611.htm#cjd.
4. HPA. Creutzfeldt-Jakob disease (CJD) biannual update (2012/1). February
2012. Health Protection Report 6(6). Available at: http://www.hpa.org.uk/hpr/archives/2012/hpr0612.pdf.
5. Advisory Committee on Dangerous Pathogens (ACDP) TSE Risk Assessment
Subgroup. Position Statement on occurrence of vCJD and prevalence of infection
in the UK population. July 2012. Available at: http://www.dh.gov.uk/ab/ACDP/TSEguidance/DH_125868.
1 in 2,000 is huge.
considering this study was only looking at the appendix, was only using
immunohistochemistry, this study tells little, and may even be giving false
hope.
in my opinion, everyone in the U.K., back in the worse days of the mad cow
epidemic, that consumed beef, would have had to have been exposed to BSE, how many there from that
are sub-clinical, that is another question, one this study does not answer in
full.
TSS
Survey underlines need for minimizing secondary human exposure to prions
16 August 2012
Official publications
Tags: TSE, vCJD
Source: Health Protection Agenca/ ACDP
The Health Protection Agency of the UK has released its summary results of the second national survey of abnormal prion prevalence in archived appendix specimens. The Advisory Committee on Dangerous Pathogens (ACDP) TSE Risk Assessment Subgroup published a comment on the these results in a position paper.
The position paper concludes amongst other things that (highlighting by USP):
- While fundamental research into prion diseases continues, it is essential to ensure that consistent, long-term surveillance of the population continues. This should include development of methods to characterise the disease and if appropriate differentiate between strains.
- Despite the welcome fall in vCJD diagnoses, the indication of relatively widespread, albeit “silent”, vCJD infection necessitates continued attention to the risks of secondary, person-to-person transmission, and for applied research to support the development and implementation of risk management strategies.
Published Date: 2011-11-07 19:37:21
Subject: PRO/AH/EDR> Prion disease update 2011 (10) Archive Number:
20111107.3317
PRION DISEASE UPDATE 2011 (10)
Tuesday, October 05, 2010
Large-scale immunohistochemical examination for lymphoreticular prion
protein in tonsil specimens collected in Britain
05 Oct 2010 14:46
Friday, August 10, 2012
Incidents of Potential iatrogenic Creutzfeldt-Jakob disease (CJD) biannual
update (July 2012)
North America has NO surveillance system for iatrogenic CJD. a few mishaps
of late ;
Tuesday, July 31, 2012
11 patients may have been exposed to fatal disease Creutzfeldt-Jakob
Disease CJD Greenville Memorial Hospital
Thursday, August 02, 2012
CJD case in Saint John prompts letter to patients Canada CJD case in Saint
John prompts letter to patients
Wednesday, May 16, 2012
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion
disease, Iatrogenic, what if ?
Proposal ID: 29403
layperson
TSS
Friday, August 10, 2012
Incidents of Potential iatrogenic Creutzfeldt-Jakob disease (CJD) biannual update (July 2012)
Infection report/CJD
Creutzfeldt-Jakob disease (CJD) biannual update (July 2012)
This six-monthly report provides an update on reports of incidents of
potential iatrogenic (healthcare-acquired) exposure to CJD. The data are correct
as of 27 July 2012.
For numbers of CJD case reports, readers should consult data provided by
the National CJD Research and Surveillance Unit (NCJDRSU), Edinburgh [1]. The
latest yearly analysis of vCJD reports (onsets and deaths) is also available
from the NCJDRSU website [2].
Reports of incidents of potential iatrogenic exposure to CJD via surgery:
2000 to 30 June 2012 A surgical incident occurs when a patient with or at
increased risk of CJD has undergone surgery without the appropriate infection
control guidance being followed [3]. This could happen if a patient undergoes
surgery during the incubation period of CJD, or because information about CJD
risk factors is not available at the time of surgery. If this happens, surgical
instruments that may be contaminated with the infectious agent that causes CJD,
could pose a transmission risk when they are re-used on other patients.
In June 2010 the CJD Incidents Panel changed its protocol for reporting
surgical incidents, and a new reporting algorithm was published on the HPA CJD
Section website. Under the new protocol only CJD cases (or patients at increased
risk of CJD) who have undergone surgical procedures which are thought to pose a
possible transmission risk (i.e. within the likely infectious incubation period,
and involving medium or high risk procedures) are categorised as ‘surgical
incidents'. Other procedures, either outside the incubation period, or involving
low infectivity tissues, are categorised as ‘CJD Reports'.
Table 1 shows the number of CJD surgical incidents reported to the CJD
Incidents Panel from 2000 to 30 June 2012 by the diagnosis of the index patient.
As shown in the table, 44% of surgical incidents and 64% of reports result from
surgery on index cases diagnosed with sporadic CJD. Advice has been issued for 4
surgical incidents and 17 CJD surgical reports that have been reported to the
CJD Incidents Panel in the first six months of 2012. Information about the CJD
Incidents Panel can be found on the HPA website [4].
Table 1. CJD surgical incidents (n=452) and reports (n=59) reported to the
CJD Incidents Panel (which have been closed, or where advice has been issued) by
diagnosis of index patient: 2000 to 30 June 2012
snip...see url link for table...tss
TOTAL 16 38 56 50 45 56 63 27 33 29 23 4 12 38 4 17 452 59
Notes: I = Incidents; R = Reports; Prior to 2010, all reports were recorded
as incidents.
Health Protection Report Vol 6 No. 32 - 10 August 2012
If the investigation of a surgical incident identifies any instruments that
are considered to be potentially contaminated with the infectious agent, and
that could still pose an infection risk to other patients, the Panel advises
that these instruments should be removed from general use or refurbished. These
instruments may be quarantined, kept for exclusive use on the index patient,
refurbished (endoscopes only) or destroyed. Since 2000 there have been 90
incidents in which instruments have been permanently removed from general use or
refurbished (endoscopes only).
Surgical incidents resulting in ‘at risk’ patients
The Panel may advise contacting and informing patients of their possible
exposure to CJD following a surgical incident. These patients should be
considered 'at risk of CJD for public health purposes' and are asked to take
certain precautions (i.e. not to donate blood, other tissues or organs, and to
inform their medical and dental carers prior to any invasive procedures) in
order to reduce the risk of transmitting the CJD agent.
The diagnosis of the index patient; the timing of the procedure relative to
the development of clinical CJD; the tissue that instruments were in contact
with during the procedure on the index patient; and the number of cycles of
re-use and decontamination the instruments have been through following the
procedure on the index case – all influence the possible risk to subsequent
patients.
The threshold level of risk at which patients are considered to be ‘at
increased risk’ of CJD is 1%, in addition to the background risk in the UK
population. This risk threshold is based on risk assessment models, using
precautionary assumptions. The 1% threshold level is used as a cut off for
implementing public health precautions and is not intended to be a precise
measure of an individual patient's risk. A similar threshold is used for
identifying other patients who have been exposed to possible CJD risks following
surgical, blood, plasma and tissue incidents.
From 2000 to 30 June 2012, there have been 28 surgical incidents in which
the Panel has advised that 192 patients should be considered to have an
increased risk of CJD.
Patient denotifications
Following changes in the assessment of tissue infectivity, the Panel has
advised that 38 patients in 14 surgical incidents who were originally considered
(and notified) as being ‘at risk' of CJD should no longer be considered ‘at
risk', and should be denotified. In November 2005, gastrointestinal endoscopies
without invasive procedures were reclassified as low risk procedures, and advice
was issued to denotify two patients in one surgical incident. In 2006, anterior
eye was reclassified as a ‘medium low' infectivity tissue. This led to a change
in advice as only the first patient on whom instruments were used following an
anterior eye procedure was to be considered as having an increased risk of CJD.
Previously this had applied to the first two patients exposed to such
instruments. This resulted in the Panel advising that 16 patients in seven
incidents should be denotified. In 2009, the anterior eye was further
reclassified as a low infectivity tissue. Following this change, the Panel
advised that another 20 patients should be denotified.
As of 30 June 2012, the Panel has received confirmation that of the 34
patients originally notified of their exposure (out of the 38 originally
considered to be ‘at risk'), 26 patients have been informed that they are no
longer considered ‘at risk' and eight patients died before they could be
denotified.
Current 'at risk' patients resulting from surgical instruments
There are 15 surgical incidents in which 154 patients are still considered
to be at increased risk of CJD. Currently, 125 of these 'at risk' patients have
been notified and a further four notified by proxy, that they are at increased
risk of CJD. Local decisions have been taken not to notify four patients and 21
patients have died before notification in these incidents.
Health Protection Report Vol 6 No. 32 - 10 August 2012
Table 2. Surgical ‘at risk’ patients still identified as being ‘at
increased risk of CJD’ by the Panel by procedure on the index patient
Diagnosis of index patient
Procedure on index patient
Number of incidents
Patients identified as 'at risk'
Patients who died before being notified
Local decision not to notify patient Notified patients
Sporadic Brain biopsy 2 28 2 1 25a
Sporadic Ophthalmic surgery 1 11 2 – 9
Sporadic ENT 1 1 - - 1
Variant Appendectomy 1 2 - 2 -
Variant Endoscopy 1 1 - 1 -
Asymptomatic infected vCJD Endoscopy 1 4 1 – 3b
At risk variant Endoscopy 6 37 5 – 32
At risk familial Neurosurgery 1 31 10 – 21
At risk familial Ophthalmic surgery 1 39 1 – 38
Total 15 154 21 4 129c
Notes
a. Three of these patients were notified by proxy
b. One of these patients was notified by proxy
c. Four of these patients were notified by proxy
Monitoring of patients 'at increased risk' of CJD
The CJD Incidents Panel and the Advisory Committee on Dangerous Pathogens
Transmissible Spongiform Encephalopathy Risk Management Subgroup (formerly the
ACDP TSE Working Group) have identified a range of individuals and groups who
may have been exposed to an increased risk of CJD as a consequence of their
medical care (see table 3 below).
It is important to follow up these individuals to help determine the risks
of CJD spreading to patients through different routes. Follow up involves a
range of activities and is carried out by different organisations. At core,
follow up aims to ascertain whether any people who may have been exposed to
increased CJD risks go on to develop CJD.
Health Protection Report Vol 6 No. 32 - 10 August 2012
Table 3. Summary of health status of individuals at increased risk of
CJD/vCJD (as at 30 June 2012)
'At risk' Group
Identified as 'at risk'
Ever notified as being 'at risk'
Alive and Notified
CJD/vCJD cases
Asymptomatic vCJD infections d
Recipients of blood from vCJD cases 67 27 18 3 1
Blood donors to vCJD cases 112 107 104 - - Other recipients from blood
donors to vCJD cases 34 32 22 - -
Plasma product recipients (all except one have non-bleeding disorders) 11
10 4 - -
Surgical contacts of all CJD cases 154 129 119 - -
Highly transfused patients (recipients of blood from ≥80 donors identified
at pre-surgical assessment) 10 9 8 - -
Total for at risk groups where HPA holds data 388 310 273 3 1
Patients with bleeding disorders who received UK sourced plasma products a
3,872 n/a n/a – 1
Recipients of human derived growth hormone b 1,883 1,883 1,513 71 -
Total for all 'at risk' groups c 6,143 >2,193 >1,786 74 2
a. Data provided by the UK Haemophilia Centre Doctors' Organisation
(UKHCDO). These are minimum figures. Central reporting for bleeding disorder
patients is incomplete, and seven patients have opted out of the central UKHCDO
database. Individual haemophilia centres were asked to send out standardised
letters of notification to all their ‘at risk’ patients, but the exact number of
patients who received these letters and are therefore aware of their risk is not
known.
b. Data provided by the Institute for Child Health. A small number of ‘at
risk' growth hormone recipients are not included in the Institute of Child
Health study so the true number ‘at risk’ will be greater. The exact number of
growth hormone recipients in the ICH study currently aware of their risk is not
known, as given their age at the original notification many were informed
indirectly, by their parents.
c. These are minimum figures given the comments made above.
d. An asymptomatic infection is when an individual does not exhibit any of
the signs and symptoms of CJD in life but abnormal prion protein indicative of
CJD infection has been found in tissue obtained from them. In these cases the
abnormal prion protein was identified during post mortem after the individuals
had died of other causes.
References
1. The National Creutzfeldt-Jakob Disease Research and Surveillance Unit,
The University of Edinburgh. CJD statistics. Available at: http://www.cjd.ed.ac.uk/figures.htm.
2. The National Creutzfeldt-Jakob Disease Research and Surveillance Unit,
The University of Edinburgh. Incidence of variant Creutzfeldt-Jakob disease
onsets and deaths in the UK January 1994 - May 2011. Edinburgh: NCJDSU, 18 May
2011. Available at: http://www.cjd.ed.ac.uk/cjdq68.pdf.
3. Transmissible spongiform encephalopathy agents: safe working and the
prevention of infection. The ACDP TSE Risk Management Subgroup. http://www.dh.gov.uk/ab/ACDP/TSEguidance/index.htm
4. HPA CJD Incidents Panel [online].
Available at: http://www.hpa.org.uk/web/
CJDIncidentsPanel.
Health Protection Report Vol 6 No. 32 - 10 August 2012
Tuesday, June 26, 2012
Creutzfeldt Jakob Disease Human TSE report update North America, Canada,
Mexico, and USDA PRION UNIT as of May 18, 2012
type determination pending Creutzfeldt Jakob Disease (tdpCJD), is on the
rise in Canada and the USA
Wednesday, August 01, 2012
Behavioural and Psychiatric Features of the Human Prion Diseases:
Experience in 368 Prospectively Studied Patients
Monday, August 06, 2012
Atypical neuropathological sCJD-MM phenotype with abundant white matter
Kuru-type plaques sparing the cerebellar cortex
Saturday, July 07, 2012
Class II, Blood products, collected from a donor who was at risk for
variant Creutzfeldt-Jakob disease ( vCJD) USA
Enforcement Report
Monday, August 6, 2012
TAFS
BSE Final report in USA August 6, 2012
Monday, July 23, 2012
The National Prion Disease Pathology Surveillance Center July 2012
North America has NO surveillance system for iatrogenic CJD. a few mishaps
of late ;
Tuesday, July 31, 2012
11 patients may have been exposed to fatal disease Creutzfeldt-Jakob
Disease CJD Greenville Memorial Hospital
Thursday, August 02, 2012
CJD case in Saint John prompts letter to patients Canada CJD case in Saint
John prompts letter to patients
Wednesday, May 16, 2012
Alzheimer’s disease and Transmissible Spongiform Encephalopathy prion
disease, Iatrogenic, what if ?
Proposal ID: 29403
Tuesday, May 29, 2012
Transmissible Proteins: Expanding the Prion Heresy
Friday, May 11, 2012
ProMetic Life Sciences Inc.: P-Capt® Filtration Prevents Transmission of
Endogenous Blood-Borne Infectivity in Primates
Wednesday, August 24, 2011
All Clinically-Relevant Blood Components Transmit Prion Disease following a
Single Blood Transfusion: A Sheep Model of vCJD
http://transmissiblespongiformencephalopathy.blogspot.com/2011/08/all-clinically-relevant-blood.html
Wednesday, August 24, 2011
There Is No Safe Dose of Prions
Sunday, May 1, 2011
W.H.O. T.S.E. PRION Blood products and related biologicals May 2011
Monday, February 7, 2011
FDA’s Currently-Recommended Policies to Reduce the Possible Risk of
Transmission of CJD and vCJD by Blood and Blood Products 2011 ???
Friday, February 10, 2012
Creutzfeldt-Jakob disease (CJD) biannual update (2012/1) potential
iatrogenic (healthcare-acquired) exposure to CJD, and on the National Anonymous
Tonsil Archive
Thursday, December 29, 2011
Aerosols An underestimated vehicle for transmission of prion diseases?
PRION www.landesbioscience.com
please see more on Aerosols and TSE prion disease here ;
Saturday, February 12, 2011
Another Pathologists dies from CJD, another potential occupational death ?
another happenstance of bad luck, a spontaneous event from nothing, or
friendly fire ???
2011 TO 2012 UPDATE
Saturday, December 3, 2011
Candidate Cell Substrates, Vaccine Production, and Transmissible Spongiform
Encephalopathies
Volume 17, Number 12—December 2011
Tuesday, December 14, 2010
Infection control of CJD, vCJD and other human prion diseases in healthcare
and community settings part 4, Annex A1, Annex J,
UPDATE DECEMBER 2010
Sunday, August 01, 2010
Blood product, collected from a donors possibly at increased risk for vCJD
only, was distributed USA JULY 2010
Tuesday, September 14, 2010
Transmissible Spongiform Encephalopathies Advisory Committee; Notice of
Meeting October 28 and 29, 2010 (COMMENT SUBMISSION)
Thursday, September 02, 2010
NEUROSURGERY AND CREUTZFELDT-JAKOB DISEASE Health Law, Ethics, and Human
Rights The Disclosure Dilemma
Thursday, July 08, 2010
GLOBAL CLUSTERS OF CREUTZFELDT JAKOB DISEASE - A REVIEW 2010
Wednesday, June 02, 2010
CJD Annex H UPDATE AFTER DEATH PRECAUTIONS Published: 2 June 2003 Updated:
May 2010
Tuesday, May 11, 2010
Current risk of iatrogenic Creutzfeld–Jakob disease in the UK: efficacy of
available cleaning chemistries and reusability of neurosurgical instruments
Saturday, January 16, 2010
Evidence For CJD TSE Transmission Via Endoscopes 1-24-3 re-Singeltary to
Bramble et al
Evidence For CJD/TSE Transmission Via Endoscopes
From Terry S. Singletary, Sr flounder@wt.net 1-24-3
Monday, July 20, 2009
Pre-surgical risk assessment for variant Creutzfeldt-Jakob disease (vCJD)
risk in neurosurgery and eye surgery units
Friday, July 17, 2009
Revision to pre-surgical assessment of risk for vCJD in neurosurgery and
eye surgery units Volume 3 No 28; 17 July 2009
Sunday, May 10, 2009
Meeting of the Transmissible Spongiform Encephalopathies Committee On June
12, 2009 (Singeltary submission)
Thursday, January 29, 2009
Medical Procedures and Risk for Sporadic Creutzfeldt-Jakob Disease, Japan,
1999-2008 (WARNING TO Neurosurgeons and Ophthalmologists) Volume 15, Number
2-February 2009 Research
Sunday, July 20, 2008
Red Cross told to fix blood collection or face charges 15 years after
warnings issued, few changes made to ensure safety
Monday, December 31, 2007
Risk Assessment of Transmission of Sporadic Creutzfeldt-Jakob Disease in
Endodontic Practice in Absence of Adequate Prion Inactivation
Saturday, December 08, 2007
Transfusion Transmission of Human Prion Diseases
Tuesday, October 09, 2007
nvCJD TSE BLOOD UPDATE
Saturday, December 08, 2007
Transfusion Transmission of Human Prion Diseases
Saturday, January 20, 2007
Fourth case of transfusion-associated vCJD infection in the United Kingdom
vCJD case study highlights blood transfusion risk 9 Dec 2006 by Terry S.
Singeltary Sr.
THIS was like closing the barn door after the mad cows got loose. not only
the red cross, but the FDA has failed the public in protecting them from the TSE
aka mad cow agent. TSE agent ie bse, base, cwd, scrapie, tme, ...
vCJD case study highlights blood transfusion risk -
Subject: CJD: update for dental staff
Date: November 12, 2006 at 3:25 pm PST
1: Dent Update. 2006 Oct;33(8):454-6, 458-60.
CJD: update for dental staff.
layperson
Terry S. Singeltary Sr.
P.O. Box 42
Bacliff, Texas USA 77518
flounder9@verizon.net