Thursday, September 11, 2008

Las Vegas Longevity Workshop

Last week, I mentioned the longevity workshop I attended in Las Vegas. This week, I’m going to illustrate how hanging out with the participants energized me, and I’m going to talk a little about the workshop itself.

First, let me tell you why it was such a positive event for me.

We had 16 attendees, plus me. Every one of them, all 16, shared a positive upbeat outlook on life.

Can you think of someone who brightens up your day by just walking into the room? Don’t you have someone in your life who you just love hanging around, someone who lifts your spirits by their mere presence? How about someone who shares your values, aspirations and plans?

OK, now roll those people into one… then multiply that person by 16. That’s who I spent the weekend with… 16 energizers.

In fact, it gets better. Half the attendees were geniuses and leaders in their respective fields. I’m totally in awe of some of them. They’re so brilliant, they totally humble me.

Now if that’s not enough, the workshop topic was something I am passionate about – life insurance!

What? Life insurance? I know, I know, you’re probably thinking I’ve gone off the deep end, or I’m some sort of closet life insurance salesman. Nothing could be further from the truth. I did in fact sell life insurance in a previous life, but that was traditional life insurance… and I hated it.

No, this workshop was about the only “pure” form of life insurance. Not the kind you can only benefit from by dying (which is actually “death insurance”), but the kind that could keep you from dying in the first place… Cryonics! More specifically, our topic was the strategy to preserve your assets if you experience clinical death, get cryonically preserved and get resuscitated. In other words, maybe you can “take it with you” after all.

If you’re not familiar with cryonics, research has shown that dying is a gradual process which starts after, not when, our hearts or brain waves stop. Our cells die gradually, over time. Cryonics is the science that halts this dying process with low-temperature technologies, stemming from the field of cryobiology.

If the cryonics rescue team reaches patients in time after legal death, they may be able to place them into suspended animation until such time as cures for what “killed” them are developed, and when age-reversal technologies are mature. At that time, they plan on fixing you and waking you up.

A long-shot? Maybe. Whacky? If you think so, consider this:

Cryonics depends largely on two technologies. One is cryobiology, a well-proven field that deals with ultra-low temperatures. In this case, that means storing human tissue at liquid nitrogen temperatures for future therapies. This has been routinely done for many years.

The other is neurobiology, again, a totally legitimate and non-controversial field.

So it follows that it is just as legitimate to store and recover the brain (where your memory resides) as it is to store and recover any other tissue. So cryonics should work.

Then we add another emerging, and soon to be maturing tool… regenerative medicine. We’re already growing replacement organs, and soon, they promise to be as good, or even better than the originals. You have read a lot about this in previous issues of this newsletter. Again, a well-accepted field.

As these technologies are fine-tuned, they may be more than enough for resuscitating patients. But there’s more.

Another technology that may be enormously helpful for even more perfect rescue from suspension is nanotechnology. There’s already more work in this field than I can ever hope to keep up with. Full-blown nanomedicine may be developed in as little as 19 years.

So you might look at cryonics as the purest form of life insurance. Insurance is something you hope you never need but are glad you have when you do need it… when it is no longer for sale.
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LATEST HEALTHY LIFE EXTENSION HEADLINES

Progress in Bypassing Mitochondrial Damage (September 05 2008) http://www.eurekalert.org/pub_releases/2008-09/cp-gtp082808.php
Allotopic expression of genes normally found in mitochondrial DNA is a core portion of the Strategies for Engineered Negligible Senescence. It is the process of inserting a copy of vital mitochondrial genes into the cell nucleus, and then figuring out how to get the proteins produced by those genes back to the mitochondria where they are needed. This could eliminate the contribution of mitochondrial DNA damage to aging. A technique for doing all this is now demonstrated in rats: "We obtained a complete and long-term restoration of mitochondrial function in human fibroblasts in which the mitochondrial genes ATP6, ND1, and ND4 were mutated. ND1 and ND4 are mutated in nearly all cases of Leber hereditary optic neuropathy (LHON). LHON is the most common mitochondrial disorder and is characterized by a loss of vision. They introduced the human ND4 gene with the mutation present in the majority of LHON patients into rat eyes. The treatment caused retinal ganglion cells (RGCs) to degenerate significantly when compared to those from control eyes and was associated with decreased visual performance. Importantly, reintroducing normal ND4 led to prevention of RGC loss and visual impairment, effectively rescuing the animals from impending blindness. These data represent the 'proof of principle' that optimized allotropic expression is effective in vivo and can be envisaged as a therapeutic approach for mtDNA-related diseases."

Reactive Carbonyl Species, ALEs, and Aging (September 04 2008) http://pmid.us/18721793
Free radicals (such as reactive oxygen species) are increasingly generated with age - this is the end of a long chain of consequences that starts with damaged mitochondrial DNA. How do those oxidizing agents actually cause widespread harm to bodily systems? This paper gives an overview of one broad set of mechanisms, wherein step one is the creation of reactive carbonyl species (RCS) by free radicals: "Most of the biological effects of RCS [are] due to their capacity to react with cellular constituents, forming advanced lipoxidation end-products (ALEs). Compared to reactive oxygen and nitrogen species, lipid-derived RCS are stable and can diffuse within or even escape from the cell and attack targets far from the site of formation. Therefore, these soluble reactive intermediates, precursors of ALEs, are not only cytotoxic per se, but they also behave as mediators and propagators of oxidative stress and cellular and tissue damage. The causal role of ALEs in aging and longevity is inferred from the findings that follow: a) its accumulation with aging in several tissues and species; b) physiological interventions (dietary restriction) that increase longevity, decrease ALEs content; c) the longer the longevity of a species, the lower is the lipoxidation-derived molecular damage; and finally d) exacerbated levels of ALEs are associated with pathological states."

Update on the Longevity Science Amex Members Project (September 04 2008) http://blog.methuselahfoundation.org/2008/09/an_update_on_your_votes_and_un.html
From the Methuselah Foundation blog: "I'm pleased to say that the pro-longevity science community rallied to vote the Amex Members Project submission "Undergrads Fighting Age Related Disease" into the top 25 projects by vote totals - and made it the most discussed project of all. Thank you! That discussion is still ongoing, by the way, and people unfamiliar with longevity research have questions about the project. Feel free to jump in and help answer them. What comes next? Well, between now and September 9th - less than a week away - the Members Project advisory panel will look at the projects, votes, and discussions, and announce the final 25. Those 25 projects will be voted on by Amex card holders to determine which 5 will be funded. So, all you generous folk who rounded up your friends and spread the word: we're going to do it all again for those with American Express cards starting on the 9th. We here at the Methuselah Foundation are looking forward to it!"

Another Regenerative Strategy for Hearing Loss (September 03 2008) http://www.eurekalert.org/pub_releases/2008-09/ctco-hrm090308.php
Following on from the gene therapy approach for age-related deafness mentioned a few days ago, here's a cell-based therapy via EurekAlert!: "hearing loss due to cochlear damage may be repaired by transplantation of human umbilical cord hematopoietic stem cells. The team used animal models in which permanent hearing loss had been induced by intense noise, chemical toxicity or both. Cochlear regeneration was only observed in animal groups that received HSC transplants. Researchers used sensitive tracing methods to determine if the transplanted cells were capable of migrating to the cochlea and evaluated whether the cells could contribute to regenerating neurons and sensory tissue in the cochlea. Our findings show dramatic repair of damage with surprisingly few human-derived cells having migrated to the cochlea. A fraction of circulating HSC fused with resident cells, generating hybrids, yet the administration of HSC appeared to be correlated with tissue regeneration and repair as the cochlea in non-transplanted mice remained seriously damaged."

Metformin as Calorie Restriction Mimetic (September 02 2008)
http://pmid.us/18728386
This paper is illustrative of the thinking that leads to trying anti-diabetic drugs as calorie restriction mimetics: "Studies in mammals have led to the suggestion that hyperglycemia and hyperinsulinemia are important factors both in aging and in the development of cancer. It is possible that the life-prolonging effects of calorie restriction are due to decreasing IGF-1 levels. A search of pharmacological modulators of
insulin/IGF-1 signaling pathway (which resemble effects of life span extending mutations or calorie restriction) could be a perspective direction in regulation of longevity. Antidiabetic biguanides are most promising among them. Here we show the chronic treatment of female outbred SHR mice with metformin (100 mg/kg in drinking water) slightly modified the food consumption but decreased the body weight after the age of 20 months, slowed down the age-related switch-off of estrous function, increased mean life span by 37.8%, mean life span of last 10% survivors by 20.8%, and maximum life span by 2.8 months (+10.3%) in comparison with control mice." Full calorie restriction does better than that (30-40% maximum life span extension), but this is a strong argument for its effects on insulin metabolism to be one cause of enhanced health and longevity.

Another Human Longevity Gene Association (September 02 2008) http://www.telegraph.co.uk/earth/main.jhtml?view=DETAILS&grid=&xml=/earth/2008/09/01/sciage101.xml
The Telegraph reports on confirmation that a class of longevity genes indentified in lower animals also has an effect on human populations: "The gene linked with better health and a longer life is called FOXO3A and although similar genes have been shown to prolong life span in other species, this is the first time that FOXO has been linked directly to longevity in humans. Each gene comes in two copies and the team found the longevity effect of this letter was additive: those with one copy doubled their odds of living an average 98 years. Men who had two G copies did even better and almost tripled their odds of living nearly a century, and were markedly healthier at older ages. We screened 213 of the long-lived participants' DNA and 402 of the average-lived, focusing on five genes. These genes were selected for good reason because they involved in the insulin pathway and signaling, which studies of other animals have shown is linked with longevity." This doesn't tell us laypeople more than we already knew: that insulin metabolism is significant in health and longevity variations within a species.

On the Way to Controlling Telomerase (September 01 2008) http://www.eurekalert.org/pub_releases/2008-08/twi-lso082608.php
Researchers are making progress in figuring how to control telomerase, and through it influence telomeres, cancer, and aging. From EurekAlert!: Researchers "have deciphered the structure of the active region of telomerase, an enzyme that plays a major role in the development of nearly all human cancers. The landmark achievement opens the door to the creation of new, broadly effective cancer drugs, as well as anti-aging therapies. Researchers have attempted for more than a decade to find drugs that shut down telomerase - widely considered the No. 1 target for the development of new cancer treatments - but have been hampered in large part by a lack of knowledge of the enzyme's structure. The findings [should] help researchers in their efforts to design effective telomerase inhibitors. Telomerase is an ideal target for chemotherapy because it is active in almost all human tumors, but inactive in most normal cells. That means a drug that deactivates telomerase would likely work against all cancers, with few side effects." Long-term deactivation will cause massive issues, of course, but that's not the intent for the moment. Given new information about telomerase and mitochondria in aging, there are potentially more interesting end results than good cancer therapies.

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