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The Case for Transmissible Alzheimer's Grows

blogs.scientificamerican.com

121–130 of 133 posts

Re: The Case for Transmissible Alzheimer's Grows

#121
post #65
post #9

The more we study the human body, the more questions we get. I wonder if some future Dr. McCoy centuries from now will we us as we do medicine of two centuries ago. We can go to other planets and invent new tech every day, but the body still holds a ton of mysteries.

I think we often forget that each generation always thinks they are at the peak of technology except for what they are yet to discover or solve. That is of course completely tautological, but there is a point hidden in there! For instance people in a pre-germ era were not in constant reflection on the inadequacy of e.g. miasma theory. Instead miasma theory was taken as an assumption and so things it failed to explain…

> People thought the black plague was wrought and spread by evil spirits. They could have easily managed to prove it was being spread by rats, if they were so inclined, but who'd have thought to consider such things at the time?

Well, about that -

https://www.livescience.com/61444-black-death-cause-found-tr...

https://www.pnas.org/content/115/6/1304

Re: The Case for Transmissible Alzheimer's Grows

#123
post #40

Earlier quoted context omitted.

1. If certain Prion disease(like say CJD) was Communicable with a high R0[1] by say contact, fecal matter, saliva we would see a lot of people dying, since CJD has a mortality rate of 90% within 1 year[2]. 2. The level of A-beta protein(i.e. not technically prion just yet) again the deposits in 7 of the 8 patients was so severe that if this were communicable easily with a high R0, it would also be seen in the general…

1. CJD is only one specific instance of Prion disease. Others (e.g. vCJD) have incubation periods of - multiple decades -. From the article: "In the original Alzheimer’s transmissibility study, scientists examined the brains of eight patients treated with prion-contaminated human growth hormone as children who decades later died from prion disease" Alzheimers is growing at epidemic proportions, globally [1]. Alzheime…

  Alzheimers in the US is growing at alarming rates
Is occurrence increasing alarmingly, or is it just being more properly diagnosed? "Senility" and "old age" may not have been properly isolated last century.

Re: The Case for Transmissible Alzheimer's Grows

#125
post #107

Earlier quoted context omitted.

You seem to be mixing terms a bit, so at risk of repeating things you know, I will explain what I am reading from what you've linked. PRNP is the gene encoding for "the major prion protein." Several different errors in PRNP create versions of "the major prion protein" that can be folded in a way that is bad (the prion folding). However, that is not the only way in which the proteins can fold themselves. When lots of…

> "so far all symptoms of prion-type disease for which a cause has been found have turned out to be associated with errors in PRNP." Thanks, this is an interesting new fact to me if true. Is there a source for it? I don't mean a source proving there are no others or something else silly like that. I mean like a review article that mentions they couldn't find any publication about any amyloid beyond PRNP-derived ones…

I can't give you a source like that. From the Wikipedia article on prions, it appears that several prion-based diseases are suspected, but that so far the only proven cause for such a disease has been the "major prion protein." In 2015 a hypothesis was advanced that multiple system atrophy (Shy–Drager syndrome) was caused by a prion form of the alpha-synuclein molecule. However, if any subsequent proof has followed, neither the wikipedia pages on prions or alpha-synuclein have caught up with that.

Re: The Case for Transmissible Alzheimer's Grows

#126
post #36

Earlier quoted context omitted.

Lucky you. I've had injections into my eyeball every few years due to a retina issue. Imagine a metal clip holding your eyelid open, and watching the tip of a hypodermic needle approaching your eyeball, held by an older ophthalmologist with shaky hands.

You don't ask your friends if that's normal, and never go back to that eye doctor?

It’s common when you have cornea issues and/or glaucoma or need more than basic laser eye surgery.

The shaky hands? When someone had a needle in your eye, that needle can move your eye in even the steadiest of hands.

My favorite was noticing how the needle had a metallic, rainbow pattern.

Re: The Case for Transmissible Alzheimer's Grows

#127
post #78

Dr Dale Bredesen has a treatment protocol that improves the conditions of all patients from moderately (late Alzheimer) to significantly (early Alzheimer). His treatment protocol recognizes 3 different types/causes of Alzheimer with an additional 2 subtypes. In December 2018 Dr Bredesen published an article where he shows the results of treatment of 100 patients in various health centers: https://www.omicsonline.org/…

OMICS is one of those fake-journal publication companies. Anyone can publish anything by paying their fee. The paper's own footnote shows this: Submitted October 8, 2018; Accepted October 12, 2018; Published October 19, 2018. No serious journal has a process that quick.

There was a talk at Defcon last year about this. Two journalists from Germany submitted a jibberish paper to one of these companies, got it published, and then they went on a "speaking tour," also organized by these fake journal companies.

http://www.eevblog.com/forum/chat/journalists-find-fake-scie...

Re: The Case for Transmissible Alzheimer's Grows

#128
post #118

Earlier quoted context omitted.

Your hypothesis doesn’t make much sense to me. Why wouldn’t you assume that something about the surgery caused Alzheimer’s since that is what directly preceded its onset?

I think it's not the surgery, it's that the surgery was required due to gum disease

Right - I understand that. I'm asking why you would assume that gum disease caused Alzheimer's since it appears that CURING it directly preceded the Alzheimer's.

Re: The Case for Transmissible Alzheimer's Grows

#129
post #72

Earlier quoted context omitted.

Or perhaps infection by prions by metal dental equipment.

Unlikely because only eye and neuro tissue would carry prions for contamination of equipment, right? Dental equipment should never come in contact with such tissue.

The upper palate has a direct line into the brain to facilitate smelling neurons. It is conceivable that a surgical operation on the upper teeth might cross contaminate patients.

Re: The Case for Transmissible Alzheimer's Grows

#130

Earlier quoted context omitted.

I'm telling you-- i went down the prion rabbit hole myself recently and the entire path is littered with misconception and inconsistencies in how the term "prion" is being used. One place to start other than wikipedia is this cdc site that lists know prion diseases... https://www.cdc.gov/prions/index.html After some digging, I concluded that all the diseases they listed are related to PRNP. Please, please, correct me…

Follow-up -- Spoke with my postdoc friend who informed me there are basically 3 definitions of prion being used in the literature (outside formal reports, he contends that, just as 'epigenetics' evolved to mean nothing in particular, the term 'prion' could mean almost anything). The big three: 1. The purists say prions are protein-only infectious agent ; and they have a strong case since the word prion was coined as…

Interesting, thanks for the history.
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