I've read through this thread from the beginning and it's interesting as I have recently also done a "zombie mitochondrial" flush, not using the protocol given in this thread. My 3-day flush did seem to have an effect on me, most noticeably loss of energy initially, and a rather disconcerting major increase in floaters in one eye, followed by a significant boost of energy and strength shortly thereafter upon resuming normal supplementation. But that's another story.
However, I see there is now interest in Urolithin A supplementation, resulting in a group buy. I had the same interest in Urolithins and so researched and found a different solution than supplementing the substance directly, that is, using precursors Robuvit1 & Pterostilbene to upregulate its production in the gut (someone had mentioned Pterostilbene early in the thread I see).
1 Robuvit http://www.robuvit.com/faq/
http://www.robuvit.com/fileadmin/robuvit/robuvit_brochure_161_WEB.pdf
One of Robuvit's clinical trials, concerning those with "Chronic Fatigue Syndrome", indicated that Robuvit @200 mg/day basically got the job done in rejuvenating energy production in the body. Summarized here in this LEF article here > http://www.lifeextension.com/magazine/2014/12/new-option-for-chronic-fatigue-syndrome/page-01.
Another study, An Effect of Oak-Wood Extract (Robuvit®) on Energy State of Healthy Adults—A Pilot Study, showed similar results for healthy individuals, http://onlinelibrary.wiley.com/doi/10.1002/ptr.5368/pdf
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Again, according to the same LEF summary article, Robuvit increased plasma total phenols 100%, with ribosomal activity thru gene expression also noted. This increase in phenols was also what pomegranate extract/juice was trying to do, but here it is a result of direct Robuvit supplementation.
"Roburins In The Human Body
"In the first study, researchers were interested in understanding how roburin molecules were distributed and absorbed, as well as their compatibility in the human body. Following five days of oral supplementation with roburin-rich oak wood extract—three capsules of a proprietary, patented extract called Robuvit®—the scientists found a 100% increase in plasma total phenols (a general measure of absorption of molecules in this class), as well as the presence of roburin breakdown products (metabolites) in urine of healthy volunteers.
Since roburins are found only in oak wood, the data demonstrated vigorous absorption and conversion of roburins into substances includingurolithins and ellagic acid, which are known to have potent biological activities.
This study also revealed that the oak wood roburins trigger a complex set of biological events in the body. Using a sophisticated technology that measures changes in gene expression, the researchers were able to show that blood serum from supplemented people in the study may beneficially alter the expression of several genes in human cells in culture.
Among the most consistent changes in gene expression induced by the serum from oak wood extract in supplemented patients had to do with the activities of ribosomes, the ultramicroscopic cellular organelles that are responsible for the “translation” of genes in DNA into specific proteins. Long regarded as simply tiny protein-manufacturing plants, ribosomes are now emerging as essential in the maintenance of normal cellular functions, and as key players in the science of “systemic aging” and disorders such as chronic fatigue syndrome."
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Keep in mind ribosomes2 are believe is being upregulated in this study, not mitophagy. Nevertheless, references in this thread show Urolithin does in fact, induce mitophagy.
2http://www.biology4k...cell_ribos.html > " Ribosomes are found in many places around a eukaryotic cell. You might find them floating in the cytosol. Those floating ribosomes make proteins that will be used inside of the cell. Other ribosomes are found on the endoplasmic reticulum. Endoplasmic reticulum with attached ribosomes is called rough ER. It looks bumpy under a microscope. The attached ribosomes make proteins that will be used inside the cell and proteins made for export out of the cell. There are also ribosomes attached to the nuclear envelope. Those ribosomes synthesize proteins that are released into the perinuclear space."
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The main point of interest, is that Robuvit is readily available at $3.33/gram or less (Swanson), often 15% off @ $2.80/gram, and a 200-300mg dose is easily accomplished at a reasonable price. That compares more than favorably to the last best price for Urolithin A mentioned here @ $19.50/gram.
Perhaps this may offer an alternative for those who like what Urolithins potentially do, but not at the price of the single Urolithin A.
Anecdotally, I can't tell you if Robuvit plus Pterostilbene does what pure Urolithin A does (as I take too many things to be able to know), but since I started taking this combo of precursors, what I can mention is, some of my weights at the gym have almost magically gone up ~20+%, from 25lb to 30lb biceps curl, and 140lb to 180lbs seated high row, and 120lb to 150lbs Lat pulldown - in just a couple weeks’ time. After nearly a year of gym work, this increase in so short a time was astounding to me, whether autophagy and/or Urolithins or something else is helping. Notably, that increase does seem in line with the statistics given in the Robovit brochure .pdf (page 5 and also here3 showing significantly enhanced physical performance.
3 http://www.nutraingr...ete-performance