Brent Kearney

Archive for the 'Longevity' Category

Methuselah Foundation

May 15th, 2009 | Category: Futurism / Singularity / Neurotech,Longevity

The Methuselah Foundation, whose mission is “nothing less than to enable humans to live longer, better, and wiser, by defeating age-related disease and suffering”, recently got some flashy press coverage by a TV outfit in Los Angeles, KTLA:

The “organ printing” technology described in the video is by a Methuselah-funded company called Organovo. It is one of several organizations supported by the Methuselah Foundation. Another of it’s organizations is even more exciting: the SENS Foundation:

SENS is an acronym for “Strategies for Engineered Negligible Senescence”. It is best defined as an integrated set of medical techniques designed to restore youthful molecular and cellular structure to aged tissues and organs. Essentially, this involves the application of regenerative medicine to the problem of age-related ill-health. However, regenerative medicine is usually thought of as encompassing a few specific technologies such as stem cell therapy and tissue engineering, whereas SENS incorporates a variety of other techniques to remove or obviate the accumulating damage of aging.

SENS is the brainchild of the famous Aubrey de Grey, author of the book Ending Aging. De Grey spoke at a conference in Edmonton, Alberta a few years ago, and was interviewed by the CBC. See it and are other interviews and media here.


Aubrey de Grey

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The Over- Mineralization Theory of Aging

January 06th, 2009 | Category: Longevity

The over mineralization theory of aging holds that the build-up of calcium, iron and copper in the body is responsible for age-related chronic health problems such as heart disease, cancer, diabetes and many other ailments. The theory seems compelling, as it seems to explain why humans age in different stages — something that the oxidation theory does not account for.

This video explains the theory in 8 minutes. The video was created by a company that has a patent-pending “nutraceutical” supplement for chelating excess minerals from the body.

I mentioned resveratrol in an earlier post, and after looking into it, I think it’s worthwhile. This website has dozens of links to and summaries of peer-reviewed, published scientific studies that support the over-mineralization theory of aging and the efficacy of resveratrol. For example, this summary discusses findings from Cornell University showing that oral doses of resveratrol reduces brain plaque, due to it’s ability to chelate copper. The accumulation of brain plaque is associated with senility and Alzheimer’s disease.

The over-mineralization theory of aging is new to me, and I look forward to researching it more. If you have any comments or links to other information about the theory, especially to any opposing voices, I would love to hear from you.

One thing I’m particularly curious about is appropriate conclusions that one can take away from this theory in regards to diet, in light of athletic performance. Calcium is a critical mineral for muscle contractions, and iron is necessary for muscle growth and recovery. From a performance perspective, what is one to do if these minerals also contribute to the dysfunction of cellular processes? Chelation would seem to be one answer, but what other advice is prudent?

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More Promise for Resveratrol?

November 30th, 2008 | Category: Health and Fitness,Longevity

This week, there was a bit of a splash in science news about results of a study out of Professor David Sinclair’s lab at Harvard (Oberdoerffer, et al.) — “potential universal mechanism of aging” discovered, was the media spin. A salient bit of the report for many people was that resveratrol (rez-vair-a-trol) was used to stimulate the production of sirtuin in mice, which in turn allowed them to live up to 46% longer. Does this mean we should all be supplementing with resveratrol?

The Wikipedia article on resveratrol is filled with contradictions on its efficacy as a fountain-of-youth supplement. Some studies have it extending the life of some creatures by as much as 56%, while others showed no significant results at all. I had been convinced by Ray & Terry that it was a promising enough compound to add to my supplement regime. However, since some studies failed to show health benefits in mammals, and others showed that there is practically no evidence of efficacy in humans due to resveratrol’s lack of bioavailability, I grew skeptical and stopped buying it.

After researching this latest finding from Harvard, I was intrigued to discover that those in the know — namely, Dr. Sinclair and his team of Resveratrol researchers — personally supplement with the substance. The bioavailability problem can apparently be mitigated by microencapsulation, which protects resveratrol from oxidation and damage from heat and light, and allows it to by-pass the harsh digestive environment of the stomach so that it can be absorbed into the blood stream when it reaches the intestines. Including quercetin in the formulation also helps absorption.

There may be side-effects to supplementing with resveratrol, however. One of them may be ligament and tendon troubles:

It is possible that the anti-angiogenesis effect of resveratrol can cause ligament or tendon issues; those tissues are so poorly supplied with blood a reduction of angiogenesis could delay or prevent healing, and a series of micro-tears or other injuries would compound the situaton. Quercetin has a similar effect on agiogenesis.

That is from the sci.life-extension discussion group. If resveratrol slows exercise recovery time for tendons and ligaments, it is probably not a good thing for athletes to take. As a rock climber and distance runner, I’ve decided against it.

On another note, a recent study showed that, like resveratrol, endurance exercise can have similar SIRT1 effects! Note also that sweating is a natural iron chelator. The moral of this story is that intense exercise will do you much more good than resveratrol will, and will save you a lot of money too.

Here are some relevant links:

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