Thursday, October 10, 2013
CJD REPORT 1994 increased risk for consumption of veal and venison and lamb
greetings cjdvoice, bloodcjd, et al,
for those that are still filing away reports and science on human and animal TSE prion disease. I suggest that you download this link for future reference ;
CREUTZFELDT JAKOB DISEASE SURVEILLANCE IN THE UNITED KINGDOM THIRD ANNUAL REPORT AUGUST 1994
Consumption of venison and veal was much less widespread among both cases and controls. For both of these meats there was evidence of a trend with increasing frequency of consumption being associated with increasing risk of CJD. (not nvCJD, but sporadic CJD...tss) These associations were largely unchanged when attention was restricted to pairs with data obtained from relatives. ...
Table 9 presents the results of an analysis of these data.
There is STRONG evidence of an association between ‘’regular’’ veal eating and risk of CJD (p = .0.01).
Individuals reported to eat veal on average at least once a year appear to be at 13 TIMES THE RISK of individuals who have never eaten veal.
There is, however, a very wide confidence interval around this estimate. There is no strong evidence that eating veal less than once per year is associated with increased risk of CJD (p = 0.51).
The association between venison eating and risk of CJD shows similar pattern, with regular venison eating associated with a 9 FOLD INCREASE IN RISK OF CJD (p = 0.04).
There is some evidence that risk of CJD INCREASES WITH INCREASING FREQUENCY OF LAMB EATING (p = 0.02).
The evidence for such an association between beef eating and CJD is weaker (p = 0.14). When only controls for whom a relative was interviewed are included, this evidence becomes a little STRONGER (p = 0.08).
It was found that when veal was included in the model with another exposure, the association between veal and CJD remained statistically significant (p = < 0.05 for all exposures), while the other exposures ceased to be statistically significant (p = > 0.05).
In conclusion, an analysis of dietary histories revealed statistical associations between various meats/animal products and INCREASED RISK OF CJD. When some account was taken of possible confounding, the association between VEAL EATING AND RISK OF CJD EMERGED AS THE STRONGEST OF THESE ASSOCIATIONS STATISTICALLY. ...
In the study in the USA, a range of foodstuffs were associated with an increased risk of CJD, including liver consumption which was associated with an apparent SIX-FOLD INCREASE IN THE RISK OF CJD. By comparing the data from 3 studies in relation to this particular dietary factor, the risk of liver consumption became non-significant with an odds ratio of 1.2 (PERSONAL COMMUNICATION, PROFESSOR A. HOFMAN. ERASMUS UNIVERSITY, ROTTERDAM). (???...TSS)
snip...see full report ;
mad cow JUNK science in motion, and constantly changed by politics and the industry $$$
From PS( L )
THIRD ANNUAL REPORT OF THE NATION CJD SURVEILLANCE UNIT
I have seen the revised section of this report which you SUCCESSFULLY NEGOTIATED WITH PROFESSOR WILL. I am grateful for your skill in OBTAINING HIS AGREEMENT TO THESE PRESENTATIONAL CHANGES WHICH WILL, I AM SURE, GO SOME WAY TO REDUCE THE RISK OF DAMAGING QUOTATIONS BEING MADE OUT OF CONTEXT.
Although this section is much improved, I am still concerned that there needs to be an explicit caution at the beginning of the report about the difficulty of interpreting statistics based on such small numbers, and this caution needs to be repeated at intervals within the test. Do you think it would be possible for you to ask Professor Will to include this, please?
I SHOULD ALSO WELCOME YOUR VIEWS ON THE USE OF PHRASES SUCH AS ‘’MAJOR INCREASE IN THE RISK OF CJD’’ and ‘’STRONG EVIDENCE OF AN ASSOCIATION’’ (both on page 20).
CHANGING SCIENCE FOR THE BETTER OF THE INDUSTRY
Monday, September 02, 2013
Atypical BSE: role of the E211K prion polymorphism
Research Project: TRANSMISSION, DIFFERENTIATION, AND PATHOBIOLOGY OF TRANSMISSIBLE SPONGIFORM ENCEPHALOPATHIES
Location: Virus and Prion Research Unit
Sunday, September 1, 2013
Evaluation of the Zoonotic Potential of Transmissible Mink Encephalopathy
We previously described the biochemical similarities between PrPres derived from L-BSE infected macaque and cortical MM2 sporadic CJD: those observations suggest a link between these two uncommon prion phenotypes in a primate model (it is to note that such a link has not been observed in other models less relevant from the human situation as hamsters or transgenic mice overexpressing ovine PrP ). We speculate that a group of related animal prion strains (L-BSE, c-BSE and TME) would have a zoonotic potential and lead to prion diseases in humans with a type 2 PrPres molecular signature (and more specifically type 2B for vCJD)
Together with previous experiments performed in ovinized and bovinized transgenic mice and hamsters [8,9] indicating similarities between TME and L-BSE, the data support the hypothesis that L-BSE could be the origin of the TME outbreaks in North America and Europe during the mid-1900s.
Tuesday, September 24, 2013
NORDION (US), INC., AND BIOAXONE BIOSCIENCES, INC., Settles $90M Mad Cow TSE prion Contamination Suit Cethrin(R)
Case 0:12-cv-60739-RNS Document 1 Entered on FLSD Docket 04/26/2012 Page 1 of 15
Atypical BSE in Cattle
To date the OIE/WAHO assumes that the human and animal health standards set out in the BSE chapter for classical BSE (C-Type) applies to all forms of BSE which include the H-type and L-type atypical forms. This assumption is scientifically not completely justified and accumulating evidence suggests that this may in fact not be the case. Molecular characterization and the spatial distribution pattern of histopathologic lesions and immunohistochemistry (IHC) signals are used to identify and characterize atypical BSE. Both the L-type and H-type atypical cases display significant differences in the conformation and spatial accumulation of the disease associated prion protein (PrPSc) in brains of afflicted cattle. Transmission studies in bovine transgenic and wild type mouse models support that the atypical BSE types might be unique strains because they have different incubation times and lesion profiles when compared to C-type BSE. When L-type BSE was inoculated into ovine transgenic mice and Syrian hamster the resulting molecular fingerprint had changed, either in the first or a subsequent passage, from L-type into C-type BSE.
In addition, non-human primates are specifically susceptible for atypical BSE as demonstrated by an approximately 50% shortened incubation time for L-type BSE as compared to C-type. Considering the current scientific information available, it cannot be assumed that these different BSE types pose the same human health risks as C-type BSE or that these risks are mitigated by the same protective measures.
This study will contribute to a correct definition of specified risk material (SRM) in atypical BSE. The incumbent of this position will develop new and transfer existing, ultra-sensitive methods for the detection of atypical BSE in tissue of experimentally infected cattle.
Monday, October 10, 2011
EFSA Journal 2011 The European Response to BSE: A Success Story
EFSA and the European Centre for Disease Prevention and Control (ECDC) recently delivered a scientific opinion on any possible epidemiological or molecular association between TSEs in animals and humans (EFSA Panel on Biological Hazards (BIOHAZ) and ECDC, 2011). This opinion confirmed Classical BSE prions as the only TSE agents demonstrated to be zoonotic so far but the possibility that a small proportion of human cases so far classified as "sporadic" CJD are of zoonotic origin could not be excluded. Moreover, transmission experiments to non-human primates suggest that some TSE agents in addition to Classical BSE prions in cattle (namely L-type Atypical BSE, Classical BSE in sheep, transmissible mink encephalopathy (TME) and chronic wasting disease (CWD) agents) might have zoonotic potential.
Thursday, August 12, 2010 Seven main threats for the future linked to prions First threat The TSE road map defining the evolution of European policy for protection against prion diseases is based on a certain numbers of hypotheses some of which may turn out to be erroneous. In particular, a form of BSE (called atypical Bovine Spongiform Encephalopathy), recently identified by systematic testing in aged cattle without clinical signs, may be the origin of classical BSE and thus potentially constitute a reservoir, which may be impossible to eradicate if a sporadic origin is confirmed.
***Also, a link is suspected between atypical BSE and some apparently sporadic cases of Creutzfeldt-Jakob disease in humans. These atypical BSE cases constitute an unforeseen first threat that could sharply modify the European approach to prion diseases.
DEEP THROAT TO TSS 2000-2001
(take these old snips of emails with how ever many grains of salt you wish. ...tss)
The most frightening thing I have read all day is the report of Gambetti's finding of a new strain of sporadic cjd in young people...Dear God, what in the name of all that is holy is that!!! If the US has different strains of scrapie.....why????than the UK...then would the same mechanisms that make different strains of scrapie here make different strains of BSE...if the patterns are different in sheep and mice for scrapie.....could not the BSE be different in the cattle, in the mink, in the humans.......I really think the slides or tissues and everything from these young people with the new strain of sporadic cjd should be put up to be analyzed by many, many experts in cjd........bse.....scrapie Scrape the damn slide and put it into mice.....wait.....chop up the mouse brain and and spinal cord........put into some more mice.....dammit amplify the thing and start the damned research.....This is NOT rocket science...we need to use what we know and get off our butts and move....the whining about how long everything takes.....well it takes a whole lot longer if you whine for a year and then start the research!!! Not sure where I read this but it was a recent press release or something like that: I thought I would fall out of my chair when I read about how there was no worry about infectivity from a histopath slide or tissues because they are preserved in formic acid, or formalin or formaldehyde.....for God's sake........ Ask any pathologist in the UK what the brain tissues in the formalin looks like after a year.......it is a big fat sponge...the agent continues to eat the brain ......you can't make slides anymore because the agent has never stopped........and the old slides that are stained with Hemolysin and Eosin......they get holier and holier and degenerate and continue...what you looked at 6 months ago is not there........Gambetti better be photographing every damned thing he is looking at.....
Okay, you need to know. You don't need to pass it on as nothing will come of it and there is not a damned thing anyone can do about it. Don't even hint at it as it will be denied and laughed at.......... USDA is gonna do as little as possible until there is actually a human case in the USA of the nvcjd........if you want to move this thing along and shake the earth....then we gotta get the victims families to make sure whoever is doing the autopsy is credible, trustworthy, and a saint with the courage of Joan of Arc........I am not kidding!!!! so, unless we get a human death from EXACTLY the same form with EXACTLY the same histopath lesions as seen in the UK nvcjd........forget any action........it is ALL gonna be sporadic!!!
And, if there is a case.......there is gonna be every effort to link it to international travel, international food, etc. etc. etc. etc. etc. They will go so far as to find out if a sex partner had ever traveled to the UK/europe, etc. etc. .... It is gonna be a long, lonely, dangerous twisted journey to the truth. They have all the cards, all the money, and are willing to threaten and carry out those threats....and this may be their biggest downfall...
Thanks as always for your help. (Recently had a very startling revelation from a rather senior person in government here..........knocked me out of my chair........you must keep pushing. If I was a power person....I would be demanding that there be a least a million bovine tested as soon as possible and agressively seeking this disease. The big players are coming out of the woodwork as there is money to be made!!! In short: "FIRE AT WILL"!!! for the very dumb....who's "will"! "Will be the burden to bare if there is any coverup!"
again it was said years ago and it should be taken seriously....BSE will NEVER be found in the US! As for the BSE conference call...I think you did a great service to freedom of information and making some people feign integrity...I find it scary to see that most of the "experts" are employed by the federal government or are supported on the "teat" of federal funds. A scary picture! I hope there is a confidential panel organized by the new government to really investigate this thing.
You need to watch your back........but keep picking at them.......like a buzzard to the bone...you just may get to the truth!!! (You probably have more support than you know. Too many people are afraid to show you or let anyone else know. I have heard a few things myself... you ask the questions that everyone else is too afraid to ask.)
U.S.A. 50 STATE BSE MAD COW CONFERENCE CALL Jan. 9, 2001
Subject: BSE--U.S. 50 STATE CONFERENCE CALL Jan. 9, 2001
Oral.05: Contaminated blood products induce a highly atypical prion disease devoid of PrPres in primates
Emmanuel Corney,1 Nina Jaffre,1 Jacqueline Mikol,1 Valerie Durand,1 Christelle Jas-Duval,1,2 Sophie Luccantoni-Freire,1 Evelyne Correia,1 Nathalie Lescoutra-Etcheqaray,3 Nathalie Streichenberqer,4 Stephane Haik,5 Chryslain Sumian,3 Paul Brown1 and Jean-Philippe Deslys1
1Commissariat a l'Energie Atomique; Institute of Emerging Diseases and Innovative Therapies (iMETI); Division of Prions and Related Diseases (SEPIA); Fontenay-aux- Roses, France; 2EFS·Nord de France; Lille, France; 3MacoPharm; Tourcoing, France; 4Hospices Civils de Lyon; Prion Unit; Neurobiology Department; Bron, France; 5Inserm; U 975·CNRS; UMR 7225 - Universite Pierre et Marie Curie; Paris, France
Background, Concerns about the blood-borne risk of prion infection have been confirmed by the occurrence in the UK of four transfusion-related infections of vCJD and an apparently silent infection in an hemophiliac patient. Asymptomatic incubation periods in prion diseases can extend over decades in humans. We present here unexpected results of experiments evaluating blood transmission risk in a non-human primate model.
Material and Methods, Cynomolgus macaques were inoculated with brain or blood specimens from vCJD infected humans or monkeys. Neuropathological and biochemical findings were obtained using current methods used for human patients.
Results, Thirteen out of 23 primates exposed to various human or macaque blood products exhibited a previously undescribed myelopathic syndrome, devoid of the classical features of prion disease, notably abnormal prion protein (PrPres) deposition, whereas the 14 corresponding brain-inoculated donor animals and 1 transfused animal exhibited the classical vCJD pattern. In passage experiments, plasma transfusion induced the same atypical phenotype after two years (again, with no detectable PrPres), whereas the intracerebral inoculation of spinal cord led to a typical prion disease with cerebral spongiosis and PrPres accumulation in the brain of the primate recipient. Interestingly, passage experiments in transgenic mice were largely unsuccessful.
In another experiment designed to test the efficacy of antiprion filters, three recipients of filtered red blood cells suspended in plasma are still healthy 4.5 y after transfusion whereas the recipients of unfiltered inocula died after 2.5 y with the atypical neurological profile.
Conclusion. We describe a new fatal neurological myelopathic syndrome in monkeys exposed to various vCJD/BSE-infected blood components.
Secondary transmission in primates confirms
(I) the transmissibility of this myelopathy, and
(2) its prion origin which could not be diagnosed as such in the first recipients.
This myelopathy might be compared in some respects to certain forms of human lower motor neuron disease, including neuromyelitis optica, the flail arm syndrome of amyotrophic lateral sclerosis (ALS), and the recently described FOSMN (facial onset sensory and motor neuronopathy) syndrome.
AD.56: The emergence of novel BSE prions by serial passages of H-type BSE in bovinized mice
Kentaro Masujin, Naoko Tabeta, Ritsuko Miwa, Kohtaro Miyazawa, Hiroyuki Okada, Shirou Mohri and Takashi Yokoyama
National Institute of Animal Health; Tsukuba, Japan
H-type bovine spongiform encephalopathy (BSE) is an atypical form of BSE, and has been detected in several European countries, and North America. Transmission studies of H-type BSE led to the emergence of the classical BSE (C-BSE) phenotypes during passages in inbred wild type and bovinized PrP-overexpressing transgenic mice. In this study, we conducted serial passages of Canadian H-type BSE isolate in bovinized PrP-overexpressing transgenic mice (TgBoPrP). H-type BSE isolate was transmitted to TgBoPrP with incubation periods of 320 ± 12.2 d at primary passage. The incubation period of 2nd and 3rd passage were constant (~= 220 d), no clear differences were observed in their biological and biochemical properties. However, at the forth passage, 2 different BSE phenotypes were confirmed; one is shorter survival times (109 ± 4 d) and the other is longer survival times. TgBoPrP mice with longer incubation period showed the H-type phenotype of PrPsc profile and pathology. However, those of shorter incubation period were different phenotypes from previously existed BSE prions (C-BSE, L-type BSE, and H-type BSE).
*** This study imply the possibility that the novel BSE prions with high virulence in cattle will be emerged during intraspecies transmission.
see also ;
Thursday, August 15, 2013
The emergence of novel BSE prions by serial passages of H-type BSE in bovinized mice
Friday, November 09, 2012
*** Chronic Wasting Disease CWD in cervidae and transmission to other species
Sunday, November 11, 2012
*** Susceptibilities of Nonhuman Primates to Chronic Wasting Disease November 2012
Friday, December 14, 2012
Susceptibility Chronic Wasting Disease (CWD) in wild cervids to Humans 2005 - December 14, 2012
Sunday, August 25, 2013
Prion2013 Chronic Wasting Disease CWD risk factors, humans, domestic cats, blood, and mother to offspring transmission
NOW, let’s take a look at what the science is saying on the risk factors of human TSE prion disease from CWD prion disease of cervids.
first, from the cdc/nih et al prion gods, and what they said on human cwd potential, and what that might look like ;
now, let’s see what the authors said about this casual link, personal communications years ago. see where it is stated NO STRONG evidence. so, does this mean there IS casual evidence ????
“Our conclusion stating that we found no strong evidence of CWD transmission to humans”
From: TSS (216-119-163-189.ipset45.wt.net)
Subject: CWD aka MAD DEER/ELK TO HUMANS ???
Date: September 30, 2002 at 7:06 am PST
From: "Belay, Ermias"
Cc: "Race, Richard (NIH)" ; ; "Belay, Ermias"
Sent: Monday, September 30, 2002 9:22 AM
Subject: RE: TO CDC AND NIH - PUB MED- 3 MORE DEATHS - CWD - YOUNG HUNTERS
In the Archives of Neurology you quoted (the abstract of which was attached to your email), we did not say CWD in humans will present like variant CJD.
That assumption would be wrong. I encourage you to read the whole article and call me if you have questions or need more clarification (phone: 404-639-3091). Also, we do not claim that "no-one has ever been infected with prion disease from eating venison." Our conclusion stating that we found no strong evidence of CWD transmission to humans in the article you quoted or in any other forum is limited to the patients we investigated.
Ermias Belay, M.D. Centers for Disease Control and Prevention
Sent: Sunday, September 29, 2002 10:15 AM
To: firstname.lastname@example.org; email@example.com; ebb8@CDC.GOV
Subject: TO CDC AND NIH - PUB MED- 3 MORE DEATHS - CWD - YOUNG HUNTERS
Sunday, November 10, 2002 6:26 PM ......snip........end..............TSS
Thursday, April 03, 2008
A prion disease of cervids: Chronic wasting disease
2008 1: Vet Res. 2008 Apr 3;39(4):41
A prion disease of cervids: Chronic wasting disease
*** twenty-seven CJD patients who regularly consumed venison were reported to the Surveillance Center***,
full text ;
Monday, February 09, 2009
Exotic Meats USA Announces Urgent Statewide Recall of Elk Tenderloin Because It May Contain Meat Derived From An Elk Confirmed To Have CWD
Cross-sequence transmission of sporadic Creutzfeldt-Jakob disease creates a new prion strain
Date: August 25, 2007 at 12:42 pm PST
our results raise the possibility that CJD cases classified as VV1 may include cases caused by iatrogenic transmission of sCJD-MM1 prions or food-borne infection by type 1 prions from animals, e.g., chronic wasting disease prions in cervid. In fact, two CJD-VV1 patients who hunted deer or consumed venison have been reported (40, 41). The results of the present study emphasize the need for traceback studies and careful re-examination of the biochemical properties of sCJD-VV1 prions.
Wednesday, March 18, 2009
Noah's Ark Holding, LLC, Dawson, MN RECALL Elk products contain meat derived from an elk confirmed to have CWD NV, CA, TX, CO, NY, UT, FL, OK RECALLS AND FIELD CORRECTIONS: FOODS CLASS II
CWD TO HUMAN RISK FACTORS PRION2013
PRION2013 CONGRESSIONAL ABSTRACTS
HD.13: CWD infection in the spleen of humanized transgenic mice
Liuting Qing and Qingzhong Kong
Case Western Reserve University; Cleveland, OH USA
Chronic wasting disease (CWD) is a widespread prion disease in free-ranging and captive cervid species in North America, and there is evidence suggesting the existence of multiple CWD strains. The susceptibility of human CNS and peripheral organs to the various CWD prion strains remains largely unclear. Current literature suggests that the classical CWD strain is unlikely to infect human brain, but the potential for peripheral infection by CWD in humans is unknown. We detected protease-resistant PrpSc in the spleens of a few humanized transgenic mice that were intracerebrally inoculated with natural CWD isolates, but PrpSc was not detected in the brains of any of the CWD-inoculated mice. Our ongoing bioassays in humanized Tg mice indicate that intracerebral challenge with such PrpSc-positive humanized mouse spleen already led to prion disease in most animals. ***These results indicate that the CWD prion may have the potential to infect human peripheral lymphoid tissues.
Oral.15: Molecular barriers to zoonotic prion transmission: Comparison of the ability of sheep, cattle and deer prion disease isolates to convert normal human prion protein to its pathological isoform in a cell-free system
Marcelo A.Barria,1 Aru Balachandran,2 Masanori Morita,3 Tetsuyuki Kitamoto,4 Rona Barron,5 Jean Manson,5 Richard Kniqht,1 James W. lronside1 and Mark W. Head1
1National CJD Research and Surveillance Unit; Centre for Clinical Brain Sciences; School of Clinical Sciences; The University of Edinburgh; Edinburgh, UK; 2National and OIE Reference Laboratory for Scrapie and CWD; Canadian Food Inspection Agency; Ottawa Laboratory; Fallowfield. ON Canada; 3Infectious Pathogen Research Section; Central Research Laboratory; Japan Blood Products Organization; Kobe, Japan; 4Department of Neurological Science; Tohoku University Graduate School of Medicine; Sendai. Japan; 5Neurobiology Division; The Roslin Institute and R(D)SVS; University of Edinburgh; Easter Bush; Midlothian; Edinburgh, UK
Background. Bovine spongiform encephalopathy (BSE) is a known zoonotic prion disease, resulting in variant Creurzfeldt- Jakob disease (vCJD) in humans. In contrast, classical scrapie in sheep is thought to offer little or no danger to human health. However, a widening range of prion diseases have been recognized in cattle, sheep and deer. The risks posed by individual animal prion diseases to human health cannot be determined a priori and are difficult to assess empirically. The fundamemal event in prion disease pathogenesis is thought to be the seeded conversion of normal prion protein (PrPC) to its pathological isoform (PrPSc). Here we report the use of a rapid molecular conversion assay to test whether brain specimens from different animal prion diseases are capable of seeding the conversion of human PrPC ro PrPSc.
Material and Methods. Classical BSE (C-type BSE), H-type BSE, L-type BSE, classical scrapie, atypical scrapie, chronic wasting disease and vCJD brain homogenates were tested for their ability to seed conversion of human PrPC to PrPSc in protein misfolding cyclic amplification (PMCA) reactions. Newly formed human PrPSc was detected by protease digestion and western blotting using the antibody 3F4.
Results. C-type BSE and vCJD were found to efficiently convert PrPC to PrPSc. Scrapie failed to convert human PrPC to PrPSc. Of the other animal prion diseases tested only chronic wasting disease appeared to have the capability ro convert human PrPC to PrPSc. The results were consistent whether the human PrPC came from human brain, humanised transgenic mouse brain or from cultured human cells and the effect was more pronounced for PrPC with methionine at codon 129 compared with that with valine.
Conclusion. Our results show that none of the tested animal prion disease isolates are as efficient as C-type BSE and vCJD in converting human prion protein in this in vitro assay. ***However, they also show that there is no absolute barrier ro conversion of human prion protein in the case of chronic wasting disease.
Invited.16: Studies of chronic wasting disease transmission in cervid and non-cervid species
Edward A, Hoover,1 Candace K. Mathiason,1 Davin M. Henderson,1 Nicholas J. Haley,1 Davis M. Seelig,1 Nathaniel D. Denkers,1 Amy V. Nalls,1 Mark D. Zabe,1 Glenn C. Telling,1 Fernando Goni2 and Thomas Wisniewski,2
1Prion Research Center; Colorado State University; Fort Collins, CO USA; 2New York University School of Medicine; New York, NY USA
How and why some misfolded proteins become horizontally transmitted agents and occasionally cross species barriers are issues fundamental to understanding prion disease. Chronic wasting disease (CWD) of cervids is perhaps a prototype of horizontal prion transmission, encompassing efficient mucosal uptake, lymphoid amplification, neuroinvasion, peripheralization, and dissemination via mucosal excretion. Efficient mucosal transmission of CWD in deer has been demonstrated by oral, nasal, aerosol, and indirect contact exposure. In addition, other studies (Mathiason CK, et al.) reported at the symposium support a significant role for pre- and/or postnatal transmission of CWD from doe to offspring. Accumulating, yet still incomplete, evidence also suggests that the period of relatively covert CWD infection may be longer than originally thought. Given the above, minimally invasive sensitive assays based on body fluids from live animals would aid substantially in understanding the biology of CWD. We have been applying seeded realtirne quaking-induced amplification of recombinant PrP substrates (i.e., RT-QuIC methodology) to: (1) investigate antemortem CWD detection, and (2) model PrP-based species barriers and trans-species adaptation-topics we previously explored using sPMCA and in vivo bioassays. At this symposium, we report sensitive and specific detection CWD prions in saliva, urine, blood (Mathiason lab), and rectal and pharyngeal lymph node samples (Haley NJ, et al.) from pre-symptomatic and symptomatic experimentally and naturally exposed deer. Other ongoing studies are employing RT-QuIC methodology to model amplification barriers among CWD, FSE, BSE, and CJD prions using cervine, feline, bovine, human, and promiscuous rPrP substrates and the above species prion seeds, cellular co-factors, and transgenic mice. Finally, in collaboration with the Wisniewski laboratory, we are conducting of experimental CWD vaccination studies in deer employing oral administration of an attenuated Salmonella vector expressing cervid PrP epitopes.
AD.06: Detecting prions in the brain and blood of TSE-infected deer and hamsters
Alan Elder,1 Davin Henderson,1 Anca Selariu,1 Amy Nalls,1 Byron Caughey,2 Richard Bessen,1 Jason Bartz3 and Candace Mathiason1
1Colorado State University; Fort Collins, CO USA; 2NIH Rocky Mountain Laboratories; Hamilton, MT USA; 3Creighton University; Omaha, NE USA
While large quantities of protease resistant prion protein (PrPres) can be demonstrated by western blot or IHC in lymphoid biopsies or post-mortem brain tissues harvested from prion-infected animals, these conventional assays are less reliable as means to detect the small quantities of prions thought to be present in bodily fluids or associated with early and asymptomatic phases of TSE disease. The Real Time-Quaking Induced Conversion (RT-QuIC) assay is capable of detecting prions at concentrations below the level of sensitivity of conventional assays and provides a real-time fluorescent readout negating the use of proteases. We have made modifications to the RT-QuIC assay to utilize it for the detection of PrPres in brain and blood harvested from various species infected with prions. In this study, we analyzed CWD-infected deer and CWD/TME-infected hamster whole blood to determine the effect of:
(1) various anticoagulants,
(2) freezing and
(3) NaPTA precipitation.
Brain tissue and blood collected from naive deer and hamsters served as negative controls.
We were able to demonstrate amplifiable prions in
(1) brain and blood samples harvested from CWD/TME-infected animals,
(2) heparinized blood,
(3) frozen vs. fresh blood and
(4) NaPTA treated samples.
The RT-QuIC assay is able to detect PrPres in various species of animals and shows promise as an antemortem diagnostic tool for blood-borne TSEs.
Sunday, July 21, 2013
*** As Chronic Wasting Disease CWD rises in deer herd, what about risk for humans?
sCJDMM1-2 should be considered as a separate entity at this time.
All of the Heidenhain variants were of the methionine/ methionine type 1 molecular subtype.
*** The potential impact of prion diseases on human health was greatly magnified by the recognition that interspecies transfer of BSE to humans by beef ingestion resulted in vCJD. While changes in animal feed constituents and slaughter practices appear to have curtailed vCJD, there is concern that CWD of free-ranging deer and elk in the U.S. might also cross the species barrier. Thus, consuming venison could be a source of human prion disease. Whether BSE and CWD represent interspecies scrapie transfer or are newly arisen prion diseases is unknown. Therefore, the possibility of transmission of prion disease through other food animals cannot be ruled out. There is evidence that vCJD can be transmitted through blood transfusion. There is likely a pool of unknown size of asymptomatic individuals infected with vCJD, and there may be asymptomatic individuals infected with the CWD equivalent. These circumstances represent a potential threat to blood, blood products, and plasma supplies.
Saturday, September 21, 2013
CJD CONFIRMED in patient at New Hampshire Department of Health and Human Services (DHHS), Catholic Medical Center (CMC), and the Manchester Health Department (MHD)
Sunday, August 11, 2013
***Creutzfeldt-Jakob Disease CJD cases rising North America updated report August 2013
***Creutzfeldt-Jakob Disease CJD cases rising North America with Canada seeing an extreme increase of 48% between 2008 and 2010
Sunday, March 31, 2013
Creutzfeldt Jakob Disease CJD worlds youngest documented victim, 11 years old, shall we pray
Monday, January 14, 2013
Gambetti et al USA Prion Unit change another highly suspect USA mad cow victim to another fake name i.e. sporadic FFI at age 16 CJD Foundation goes along with this BSe
Monday, December 31, 2012
Creutzfeldt Jakob Disease and Human TSE Prion Disease in Washington State, 2006–2011-2012
Saturday, December 29, 2012
MAD COW USA HUMAN TSE PRION DISEASE DECEMBER 29 2012 CJD CASE LAB REPORT
MAD COW USDA ATYPICAL L-TYPE BASE BSE, the rest of the story...
Tuesday, November 6, 2012
Transmission of New Bovine Prion to Mice, Atypical Scrapie, BSE, and Sporadic CJD, November-December 2012 update
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
Saturday, March 5, 2011
MAD COW ATYPICAL CJD PRION TSE CASES WITH CLASSIFICATIONS PENDING ON THE RISE IN NORTH AMERICA
Sunday, February 12, 2012
National Prion Disease Pathology Surveillance Center Cases Examined1 (August 19, 2011) including Texas
Monday, August 9, 2010
Variably protease-sensitive prionopathy: A new sporadic disease of the prion protein or just more Prionbaloney ?
Wednesday, March 28, 2012
VARIABLY PROTEASE-SENSITVE PRIONOPATHY IS TRANSMISSIBLE ...price of prion poker goes up again $
OR-10 15:25 - 15:40 VARIABLY PROTEASE-SENSITIVE PRIONOPATHY IS TRANSMISSIBLE IN BANK VOLES Nonno
Sunday, August 09, 2009
CJD...Straight talk with...James Ironside...and...Terry Singeltary... 2009
Tuesday, August 18, 2009
BSE-The Untold Story - joe gibbs and singeltary 1999 – 2009
Saturday, September 21, 2013
Westland/Hallmark: 2008 Beef Recall A Case Study by The Food Industry Center January 2010 THE FLIM-FLAM REPORT
FOR 4 YEARS, THE USDA NSLP fed our children all across the USA, from school to school, county to county, state to state, the most high rish cattle for mad cow type disease i.e. the TSE prion disease, they fed our children dead stock downer cows. did your children consume this, and will you have to wait 5 decades to see if they become exposed and go clinical with CJD TSE prion disease ???
Thursday, September 26, 2013
Minimise transmission risk of CJD and vCJD in healthcare settings Guidance
Wednesday, October 09, 2013
WHY THE UKBSEnvCJD ONLY THEORY IS SO POPULAR IN IT'S FALLACY, £41,078,281 in compensation
kind regards, terry