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The team wanted to investigate if increasing the number of stem cells in the brain would help in recovering cognitive functions, like learning and memory, that had worsened or had been lost entirely during the aging process.
...used a method to stimulate and increase the number of neural stem cells located in the brain
the newly generated neurons survived and formed new contacts in neighboring brain cells
By stimulating the neural stem cells in their brains, the old mice in the study successfully recovered their cognitive mapping ability, and remembered the layout of a given environment for far longer, effectively reversing the effects of the aging process
Source
originally posted by: rickymouse
Here is an article that seems legit, remember, the vitamin D that helps the brain is not D3, it is actually calcitriol the most active form that crosses the blood brain barrier.
If your kidneys are up to par, they will create enough, but as people get older the kidneys get weaker, so eat more spuds but not way too much. www.lifeextension.com...
originally posted by: dantanna
this is why they promote ab0rtions as 'hip and cool'
they need those stem cells, and organs.
originally posted by: tanstaafl
originally posted by: rickymouse
Here is an article that seems legit, remember, the vitamin D that helps the brain is not D3, it is actually calcitriol the most active form that crosses the blood brain barrier.
Calcitriol is actually a synthetic form. And according to everything I've read, the claim that natural D3 doesn't cross the blood/brain barrier is false.
Can you back that up?
If your kidneys are up to par, they will create enough, but as people get older the kidneys get weaker, so eat more spuds but not way too much. www.lifeextension.com...
Sorry, after LifeExtension pushed Fructose as a healthy alternative to sugar, when it turns out it is far worse, I have toruble trusting anything from them.
originally posted by: rickymouse
The calcitriol they use to make medicines is synthetic, but calcitriol is a regular metabolite that is bioactive in our bodies.
D3 and calcitriol have different properties
and D3 is metabolized to Calcifediol/calcidiol by the liver then to calcitriol in our bodies by our kidneys and that is what goes through the blood brain barrior.
Both of those are considered hormones, not vitamins at that point.
D3 has to be converted to the Hormone metabolites before it can do anything.
Problems with liver or kidney function can negate any benefit it has.
You seem to know a little about things, but I have been studying this stuff for twelve years now, studying scientific articles mostly. You need to learn how to read scientific research articles better.
I will use an article from someplace like life extension or Mercola if the article is in a form that people can comprehend, and it IS BASICALLY CORRECT.
I read research all the time, I know what all the stuff means, I spent months looking things up on every article to try to understand what they actually say, something even professional people using this information get wrong quite often.
Interpretations flying around written by supposedly knowledgeable experts is flawed half the time, they are not reading the research correctly. They are not applying the research properly.
Most people, even doctors, cannot interpret a research article properly because the researchers are usually writing the articles to other experts in that particular science specialty, they assume people know how to interpret it properly.
Calcitriol is actually a pharmaceutical, you cannot buy it as a supplement, you need a prescription.
It is patentable because they create it by a synthetic way, they patent the process not the supplement.
originally posted by: rickymouse
a reply to: tanstaafl
Certain food chemistries can induce or inhibit enzymes that the liver and kidneys make, basically making D3 worthless.
Lack of sunshine can highly reduce the amount of D2 that is converted to D3 which the liver can convert to calciferol.
If bone calcium loss is happening, D3 and calcium will not help that much, a special pyrophosphate is used to help bring the calcium back to the bone...there is actually a medicine for that.