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David Sinclair strikes again

aging aging theories david sinclair mitochondria nad sinclair niagen nmn nicotinamide riboside

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#511 Razor444

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Posted 18 November 2014 - 12:03 AM

Another blog post. Less complementary:

 

Nicotinamide Riboside — Where’s the Beef?



#512 midas

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Posted 18 November 2014 - 12:59 AM

Another blog post. Less complementary:

 

Nicotinamide Riboside — Where’s the Beef?

 

What he says makes sense if you are looking at NR for lifespan extension. But if like me you were attracted to NR because it may help with illness/disease and give better quality of life in later years. then i don't agree with what he is saying.

Not everyone is looking to live longer, some just want to make the later years as problem free as possible. A longer lifespan would be a welcome bonus.

 

He says in his blog.. "CoQ10 has been found to improve heart health, but it has failed to extend life span in mice."..............Well, for someone that has heart problems that Q10 helps heal or alleviate, then by default Q10 DOES actually extend lifespan in those people....


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#513 Tom Andre F. (ex shinobi)

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Posted 18 November 2014 - 08:16 PM

Another blog post. Less complementary:

 

Nicotinamide Riboside — Where’s the Beef?

 

He forget some important information we have about the biochemistry process with NR and NAD+ and their method of action. But I couldnt agree more with him about the whole picture : we can discuss and speculate here about the potential of such component, but I dont accept companies who use our speculation for their marketing campaign. They have money to proven what they want to claim. We are speaking about company such as chromadex. Same thing for PQQ, the big companies never came out with life extension result. I do believe as well as the author, that bad result are just not published when they are sponsored by such companies. Thats the problem


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#514 Vastmandana

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Posted 19 November 2014 - 04:59 AM

 

Another blog post. Less complementary:

 

Nicotinamide Riboside — Where’s the Beef?

 

He forget some important information we have about the biochemistry process with NR and NAD+ and their method of action. But I couldnt agree more with him about the whole picture : we can discuss and speculate here about the potential of such component, but I dont accept companies who use our speculation for their marketing campaign. They have money to proven what they want to claim. We are speaking about company such as chromadex. Same thing for PQQ, the big companies never came out with life extension result. I do believe as well as the author, that bad result are just not published when they are sponsored by such companies. Thats the problem

 

First, I'd like to say I enjoyed the article on antiaging firewalls ( http://www.anti-agin...he-nad-world-2/) and found lots to absorb... Thanks, Kevin....however, the negative NR "beef"  article is crude, very sketchy and incomplete, and comments related to the article by recent posters here  are speculation...such as questioning whether the product is just marketing hype as reflected above....Oh, and MY pet peeve... by people NOT revealing their age... hmmmm me thinks ur all young...

 

While the validity of claims is often questionable in the capitalistic rape pillage plunder world in which we live (just look at climate collapse vs oil propaganda), research to flush this all out is ramping up.  Don't agree with the reference to PQQ at all.... it's not like anyone has the corner on this market and the fact is our research funding models are highly controlled by big pharma.... more so with each cut/reduction in federal r&d support (huge issue impacting lots of shit)...

 

I admire the Sinclairs and Duarte's of the world... and choose not to wait for us to totally understand the complex realities of human biochemistry...to fully explore this avenue...I'll be decrepid and probably dead long before we sort out all the elements of longevity.

 

I have devoted a relatively large share of my meager disposable income to NR/micronized resveratrol/pqq and a wide number of other longevity strategies... just added curcuwin to my regimine... why?  so I can hopefully operate more effectively in these crucial moments when humanities' survival may be decided.

 

Despite a long supplement stack, nothing has impacted my eyesight/physiological condition as much as since starting NR/resveratrol (duarte feals they're synergistic).  As a garden artist, I move boulders, dig holes, terraform spaces and am in better shape than most in my age bracket... but my body has been slowely unwinding and I truely feal something is happening... things are waking up... I feel it a bit more every day.   Personally I don't care about "EXTENDING" my life anywhere as much as making the most out of every moment I'm here.... 

 

You can poo poo things all you want and choose to await data as it unfolds, but your insinuations are speculation.   I've spent most of my life trying to discern what is really going on....everywhere...and this issue is no different.  I respect my information synthesizing, fallible as it is, and whenever I've exercised due diligence, I've generally moved in positive and constructive directions...Have I wasted lots of money??? Sure! Hell, every beer and coffee "laitee" is a waste of money.... At 64,  with a huge agenda to complete planetwise, I choose not to wait till we nail down the complete biochemistry of longevity...as I'll be long gone by then... time is too precious and I will continue exploring promising avenues...just like Duarte...

 

If you are my age, and sitting on the sideline chucking darts I question your wisdom... If you're young/younger, sit back and wait... it is as simple as that...

 

 


Edited by Vastmandana, 19 November 2014 - 05:36 AM.

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#515 midas

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Posted 24 November 2014 - 10:30 AM

Team discovers that a derivative of vitamin B3 prevents liver cancer in mice.

 

"The results, published in the prestigious journal Cancer Cell, indicate that diets rich in nicotinamide riboside, a derivative of vitamin B3, protect these mice from developing HCC (hepato-cellular carcinoma) in its most initial stage, when genotoxic stress is damaging cellular DNA. They also show a curative effect of the diet in those mice that had previously developed the disease."

 

http://medicalxpress...=daily-nwletter


Edited by midas, 24 November 2014 - 10:30 AM.


#516 M-K

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Posted 21 February 2015 - 06:09 AM

Recent speech by David Sinclair:

 

His part starts about 44 minutes in, but I found the opening presentation (starting at about 14 minutes) by Steve Simpson equally worthwhile.  


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#517 sthira

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Posted 21 February 2015 - 09:13 AM

Thank you for posting this. I like David Sinclair. I believe he's doing important work, he seems to be compassionate and to care, I like what he says about his mom, and I like how he breaks the complicated science down well for a general audience. Toward the end of the panel discussion he mentions metformin, rapamycin, and of course resveratrol, and NAD promoters and potentially new drugs that are many times more effective than what we currently have to halt and perhaps reverse "ageing."

If you were sitting in that audience, what would you ask him? Do you think he would put his mom on the current crop of NAD promoters (like Niagen)? Or ... is he just another slick scam artist looking to buy more expensive houses or clothes or whatever... ?
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#518 M-K

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Posted 21 February 2015 - 05:06 PM

I don't think he's a scam artist.  He strikes me as quite genuine.  However, he does seem concerned about his personal accomplishments and image; perhaps a little reluctant to promote others and competing approaches.  I think he's said his parents were taking resveratrol.  

 

I would have asked what else he's learned about NAD et al in the last year.



#519 albedo

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Posted 21 February 2015 - 08:08 PM

Recent speech by David Sinclair:

 

His part starts about 44 minutes in, but I found the opening presentation (starting at about 14 minutes) by Steve Simpson equally worthwhile.  

 

Thank you for sharing. I was surprised by what he said (at about 1:28) about resveratrol plus exercise which might turn to be deleterious based on one study.



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#520 Asor

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Posted 22 February 2015 - 06:49 AM

That video isnt really new (Published on Nov 4, 2014)


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#521 midas

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Posted 22 February 2015 - 11:58 AM

That video isnt really new (Published on Nov 4, 2014)

 

Yes, that was made around the time that NR first hit the headlines.....

 

Here is another short 18 minute video from earlier this month at Chicago Ideas Week, no new information here either really....There are a few more videos on the same page below this one if you scroll down that might be of interest but I have not had time to watch them yet...

 

https://www.chicagoi....com/videos/656


Edited by midas, 22 February 2015 - 11:59 AM.


#522 M-K

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Posted 22 February 2015 - 06:29 PM

 

That video isnt really new (Published on Nov 4, 2014)

 

Yes, that was made around the time that NR first hit the headlines.....

 

Here is another short 18 minute video from earlier this month at Chicago Ideas Week, no new information here either really....There are a few more videos on the same page below this one if you scroll down that might be of interest but I have not had time to watch them yet...

 

https://www.chicagoi....com/videos/656

 

Midas, thanks for the link.  "Recent" is relative, and compared to other Sinclair videos on YouTube, the one I posted is recent.  The point is valid, though, and I'll try to include dates in the future.  NAD first hit the headlines in December, 2013; not sure when NR did, unless it was the recent Elysium flurry.



#523 midas

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Posted 22 February 2015 - 06:40 PM

 

 

That video isnt really new (Published on Nov 4, 2014)

 

Yes, that was made around the time that NR first hit the headlines.....

 

Here is another short 18 minute video from earlier this month at Chicago Ideas Week, no new information here either really....There are a few more videos on the same page below this one if you scroll down that might be of interest but I have not had time to watch them yet...

 

https://www.chicagoi....com/videos/656

 

Midas, thanks for the link.  "Recent" is relative, and compared to other Sinclair videos on YouTube, the one I posted is recent.  The point is valid, though, and I'll try to include dates in the future.  NAD first hit the headlines in December, 2013; not sure when NR did, unless it was the recent Elysium flurry.

 

Sorry M-K,  I should correct what I said in that last post I made.....NR hit the headlines just after the Sinclair paper in December 2013 and not as I stated in my last post....I misunderstood Asor's  post and thought he had said the video was from November 2013 instead of 2014, I apologise for any misunderstanding....

 

 

 



#524 APBT

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Posted 10 March 2015 - 08:41 PM



 



Recent speech by David Sinclair:

 

His part starts about 44 minutes in, but I found the opening presentation (starting at about 14 minutes) by Steve Simpson equally worthwhile.  

 

Thank you for sharing. I was surprised by what he said (at about 1:28) about resveratrol plus exercise which might turn to be deleterious based on one study.

 

 

 

See this and this



#525 Darryl

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Posted 07 April 2015 - 05:20 PM

GSK researchers report the first synthetic CD38 inhibitors with nanomolar affinity (human IC50 7.3 nM for compound 78c)

 

Haffner, C. D., Becherer, D., Boros, E. E., Cadilla, R., Carpenter, T., Cowan, D., ... & Ulrich, J. (2015). Discovery, Synthesis and Biological Evaluation of Thiazoloquin (az) olin (on) es as Potent CD38 InhibitorsJournal of Medicinal Chemistry.

 
A series of thiazoloquin(az)olinones were synthesized and found to have potent inhibitory activity against CD38. Several of these compounds were also shown to have good pharmacokinetic properties and demonstrated the ability to elevate NAD levels in plasma, liver and muscle tissue. In particular, compound 78c was given to diet induced obese (DIO) C57Bl6 mice elevating NAD > 5-fold in liver and > 1.2-fold in muscle versus control animals at a 2 hour time point. The compounds described herein possess the most potent CD38 inhibitory activity of any small molecules described in the literature to date. The inhibitors should allow for a more detailed assessment of how NAD elevation via CD38 inhibition affects physiology in NAD deficient states.

 



#526 Fafner55

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Posted 04 June 2015 - 11:08 PM

Watson and Giuliano's recent blog  Part 4 of the NAD world: the NQ01 gene, the Warburg effect, SIRT 1 and inflammation, and possible interventions makes the critical point that the NQ01 gene drives the NAD+/NADH ratio.  Beta-lapachone direct activates NQO1, but this compound is hard to source.  Epicatechin indirectly upregulates NQO1 by activating Nrf2, the transcription factor that turns on the NQO1 gene.
 
It might not be coincidental that Jeanne Calment, who lived to the age of 122 years, is reported to have eaten nearly a kilogram of chocolate every week.  Cocoa is a major source of epicatechin.  Mdm Calment’s intake of epicatechin can be estimated to be (assuming a 60% cocoa content and the measured epicatechin content of cocoa)
 
(1000 gm/ 7 days)(0.6 cocoa content est.)(46.1 mg epicatechin content/40 g cocoa) = 99 mg epicatechin/day


 


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#527 ymc

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Posted 15 June 2015 - 09:24 AM



I am new to this NMN/NR thing. I know NMN has some mice studies to demonstrate effectiveness. What about NR? Did it show similar effects in mice studies?

#528 Darryl

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Posted 29 August 2015 - 07:38 PM

I've been investigating methylsulfonylmethane (aka MSM, dimethyl sulfone, methyl sulfone, oxidized DMSO), an OTC arthritis / joint pain supplement, and potential chemotherapy adjuvant active through suppressing inflammatory signaling. Of some note to this thread, MSM appears to inhibit the major NAD+ase PARP.

 

Karabay AZ et al. 2014. Methylsulfonylmethane modulates apoptosis of LPS/IFN-γ-activated RAW 264.7 macrophage-like cells by targeting p53, Bax, Bcl-2, cytochrome c and PARP proteinsImmunopharmacology and immunotoxicology36(6), 379-389.

Kim JH et al. 2014. Methylsulfonylmethane suppresses hepatic tumor development through activation of apoptosisWorld journal of hepatology6(2), 98.

 

 



#529 Tom Andre F. (ex shinobi)

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Posted 29 August 2015 - 08:05 PM

I've been investigating methylsulfonylmethane (aka MSM, dimethyl sulfone, methyl sulfone, oxidized DMSO), an OTC arthritis / joint pain supplement, and potential chemotherapy adjuvant active through suppressing inflammatory signaling. Of some note to this thread, MSM appears to inhibit the major NAD+ase PARP.

 

Karabay AZ et al. 2014. Methylsulfonylmethane modulates apoptosis of LPS/IFN-γ-activated RAW 264.7 macrophage-like cells by targeting p53, Bax, Bcl-2, cytochrome c and PARP proteinsImmunopharmacology and immunotoxicology36(6), 379-389.

Kim JH et al. 2014. Methylsulfonylmethane suppresses hepatic tumor development through activation of apoptosisWorld journal of hepatology6(2), 98.

 

It seems in inflammation / cancer cell line test only. Sulfur is really necessary for every cell viability, without it there is no life and our modern dietary style dont give us enough sulfur. I think supplement ourself with some MSM is a good idea



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#530 tunt01

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Posted 08 July 2016 - 03:15 PM

I'm having trouble following one section of Sinclair's paper.  If anyone can shed light on this section and the Figure 6 results, I'd appreciate it.

 

  • Fig. 6C.  I'm not following what is driving the nuclear encoded subunits if AMPK is negatively effected by the adenovirus and SIRT1 is induced KO.
  • Fig 6D-6F.  Any clarification on what the paper is explaining in 6D-6F would be helpful.

 

 

Gomes/Sinclair - Declining NAD+ Induce Pseudohypoxic State Disrupting Nuclear-Mitochondrial Communication During Aging

 

Re: Section (Figure) 6 Results.

 

AMPK Functions as a Switch between PGC1a-Dependent and -Independent Pathways Driven by SIRT1
 
Next, we determined the mechanisms that determine whether SIRT1 utilizes the PGC-1a-dependent or -independent pathways.  Under conditions of low energy, AMPK-mediatedphosphorylation of PGC-1a allows it to be deacetylated and activated by SIRT1 (Canto´ et al., 2009; Gerhart-Hines et al.,  2007; Rodgers et al., 2005), whereas under basal conditions, acetylation status is primarily regulated by the acetyltransferase GCN5 (Fernandez-Marcos and Auwerx, 2011). We speculated that the biphasic decline in OXPHOS subunits (in Figure 1L) might be due to AMPK. In time course experiments following SIRT1 deletion, AMPK activation occurred after 48 hr, well after the decline in VHL-TFAM and mitochondrial genes (Figures 1L– 1M and 6A) but coincident with the decline in nuclear-encoded OXPHOS genes and mitochondrial mass (see Figures 1L–1M).  
 
An AMPK dominant-negative adenovirus (AMPK-DN) prevented the decline of nuclear OXPHOS mRNAs at 48 hr (Figures 6B and 6C), whereas forced maintenance of TFAM prevented AMPK activation (Figures 6D, 5D, and 5E). Together, these results strongly suggest that AMPK is the switch between the
PGC-1a-dependent and -independent pathways. In this model, AMPK activation occurs in the absence of SIRT1 only when ATP levels fall below a threshold. Consistent with this, AMPK was unchanged under fed conditions in the SIRT1 iKO mice and 22month-old wild-type mice but was markedly increased in fasting
animals, when we observe changes in both nuclear- and mitochondrially encoded OXPHOS genes (Figure 6E and 6F).
 

 

 

Figure 6
 
 
gr6.jpg

Edited by prophets, 08 July 2016 - 03:16 PM.






Also tagged with one or more of these keywords: aging, aging theories, david sinclair, mitochondria, nad, sinclair, niagen, nmn, nicotinamide riboside

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