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Study shows vicious cycle of protein clumping in Alzheimer's disease and normal aging (Urolithin A addresses mitochondrial dysfunction)
Medical Xpress / Buck Institute for Research on Aging / GeroScience ^ | May 16, 2024 | Edward Anderton et al

Posted on 05/24/2024 9:40:41 AM PDT by ConservativeMind

It has long been known that a hallmark of Alzheimer's disease, and most other neurodegenerative diseases, is the clumping together of insoluble protein aggregates in the brain. During normal disease-free aging, there is also an accumulation of insoluble proteins.

Researchers have recently completed a systematic study in worms that paints an intricate picture of the connections between insoluble proteins in neurodegenerative diseases and aging. Furthermore, the work demonstrated an intervention that could reverse the toxic effects of the aggregates by boosting mitochondrial health.

"Our study shows how maintaining healthy mitochondria can combat protein clumping linked to both aging and Alzheimer's," said Manish Chamoli, Ph.D.

They found that there is a subset of proteins that seem to be very vulnerable to becoming insoluble, either by adding amyloid beta or during the normal aging process. They called that vulnerable subset the "core insoluble proteome."

The team went on to demonstrate that the core insoluble proteome is full of proteins that have already been linked to different neurodegenerative diseases in addition to Alzheimer's disease, including Parkinson's disease, Huntington's disease and prion disease.

The amyloid protein is very toxic to the worms and the team wanted to find a way to reverse that toxicity.

That's exactly what they found, using Urolithin A, a natural gut metabolite produced when we eat raspberries, walnuts, and pomegranates which is known to improve mitochondrial function: it significantly delayed the toxic effects of amyloid beta.

"Mitochondria have a strong link with aging. They've got a strong link with amyloid beta," he said.

"Because the mitochondria are so central to all of this, one way to break the vicious cycle of decline is to replace damaged mitochondria with new mitochondria," said Lithgow. "And how do you do that? You exercise and follow a healthy diet."

(Excerpt) Read more at medicalxpress.com ...


TOPICS: Health/Medicine
KEYWORDS: alzheimers; amyloid; brain; disease; healthcare; neurodegenerative; urolithina
Urolithin A is a compound 30-40% of people can make from pomegranate, raspberry, and walnut ingestion. The rest of us don’t have the right bacteria. If you have those bacteria, you still don’t make much.

Urolithin A are available, though, and I’ve previously posted on this. The first reputable form available was through Amazentis, which sells through Nestlé’s Celltrient and Solgar lines, along with Amazentis-affiliated TimeLine Nutrition. I have now seen other companies selling a separately developed form, but have not tried it.

Urolithin A forces defective mitochondria in our cells to self-destruct, while creating new, defect-free mitochondria. Mitochondria are the “engines” that power our cells.

Exercise can also help your body naturally multiply healthy mitochondria, but I am uncertain if it helps trigger defective mitochondria to self-destruct.

1 posted on 05/24/2024 9:40:41 AM PDT by ConservativeMind
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To: Mazey; ckilmer; goodnesswins; Jane Long; BusterDog; jy8z; ProtectOurFreedom; matthew fuller; ...

The “Take Charge Of Your Health” Ping List

This high volume ping list is for health articles and studies which describe something you or your doctor, when informed, may be able to immediately implement for your benefit.

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2 posted on 05/24/2024 9:41:07 AM PDT by ConservativeMind (Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)
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To: ConservativeMind

Curious if pomegranate juice is as effective as the whole fruit?


3 posted on 05/24/2024 9:58:32 AM PDT by sjmjax
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To: ConservativeMind

“Researchers have recently completed a systematic study in worms...”

HUH?


4 posted on 05/24/2024 10:02:02 AM PDT by Carriage Hill (A society grows great when old men plant trees, in whose shade they know they will never sit.)
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To: ConservativeMind

ping


5 posted on 05/24/2024 10:06:57 AM PDT by alternatives?
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To: ConservativeMind

How about intermittent fasting?


6 posted on 05/24/2024 10:12:53 AM PDT by HombreSecreto (The life of a repo man is always intense)
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To: ConservativeMind

Bookmark.


7 posted on 05/24/2024 12:12:28 PM PDT by MeanWestTexan (Sometimes There Is No Lesser Of Two Evils)
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To: ConservativeMind
trigger defective mitochondria to self-destruct.

Destruction of malfunctioning cell organelles is called apathogy, which can be induced by even a day of fasting. Removal of malfunctioning mitochondria is called mitophagy. I don’t know if time-based intermittent fasting also does that for mitochondria.

Apotosis, the destruction of malfunctioning cells, takes about 3 days of fasting to get started. The Fasting Mimicking Diet parameters put the body in a fasting state while still consuming some food (600-800 calories; <16g protein; 50-100g carbs; vitamins and micronutrients through vegetables, supplements, or green drinks).

Walnuts are high in linoleic acid (38% IIRC), which Dr. Mercola recommends 8g of less. (The SAD —Standard American Diet — is over 30% linoleic acid up from a historical 1%-2%, which leads to all kinds of health issues.)

8 posted on 05/24/2024 1:17:07 PM PDT by The Truth Will Make You Free
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To: HombreSecreto

I believe intermittent fasting and exercise remains a critical way of staying healthy, both physically and mentally.


9 posted on 05/25/2024 6:49:13 AM PDT by Obadiah
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To: ConservativeMind

“Researchers have recently completed a systematic study in worms”

Why would they restrict the study group to only Democrats?


10 posted on 05/26/2024 3:16:03 AM PDT by RouxStir (No Peein' in the Gene Pool )
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To: ConservativeMind

How much Urolithin A is necessary per day?


11 posted on 06/12/2024 10:14:56 AM PDT by FrogMom (Time marches on....)
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To: ConservativeMind

I am only aware of one commercial company pushing UA. I am somewhat skeptical that the studies aren’t being funded by interested parties.


12 posted on 06/12/2024 10:23:54 AM PDT by Oystir ( )
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To: FrogMom
The studied doses range from 500 mg to 1,000 mg. A lot of people make and get, none.

People who can make Urolithin A get something less than 125 mg a day, assuming they ate servings of such foods.

About 30-40% of people have these gut bacteria. I believe one is also used for brewing beer.

Urolithin A forces mitophagy, which gets rid of malfunctioning mitochondria and makes cells make new, healthy mitochondria, in their place.

13 posted on 06/12/2024 11:23:59 AM PDT by ConservativeMind (Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)
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