When carnosine and blueberry were combined, the growth promotion (increased bone marrow cell proliferation) observed was 83%.This article is something else I am pondering concerning carnosine. It seems to be helpful in stem cell proliferation when combined with blueberry leaf extract. Perhaps what we need to find is something which when combined with carnosine will make it more effective on AGE. The other agents in this study: green tea, catechin, and vitamin D3 were also known to raise bone marrow cell proliferation.
"Synergistic stimulatory effect of extracts and compounds on proliferation. To determine if the extracts and compounds displayed a synergistic effect on cell proliferation, we cultured human bone marrow cells with different combinations of the extracts and compounds. We also cultured the bone marrow cells with the individual extracts and compounds at the highest doses determined to promote the greatest amount of proliferation. The positive control, hGM-CSF displayed 48.3 7.4% proliferation, whereas blueberry, catechin, carnosine, green tea, and vitamin D3 alone did not cause proliferation in a significantly different manner. However, the combination of extracts and compounds resulted in a greater percentage of proliferation than observed with the individual extracts and compounds. For example, blueberry/vitamin D3 exhibited a 62% increase in proliferation, blueberry/catechin a 70% increase, and blueberry/carnosine with the greatest synergistic affect of 83% (Fig. 2A). Blueberry/green tea, blueberry/vitamin D3/green tea, and blueberry/vitamin D3/green tea/carnosine also displayed significant increases in proliferation of 56%, 72%, and 70% respectively."
"... Of all the compounds tested, blueberry extract most consistently produced significant proliferation when combined with the other compounds."
I think the big question is, "What is it about carnosine that made the blueberry extract more potent than the others?"
Green Tea seems to be on our list of AGE inhibitors as well...
"... it (
Carnosine) is responsible for a variety of activities related to the detoxification of the body from free radical species and the by-products of membrane lipids peroxidation, but recent studies have shown that this small molecule also has membrane-protecting activity, proton buffering capacity, formation of complexes with transition metals, and regulation of macrophage function....
In particular, it has been recently demonstrated that carnosine is a potent and selective scavenger of alpha,beta-unsaturated aldehydes, typical by-products of membrane lipids peroxidation and considered second messengers of the oxidative stress, and inhibits aldehyde-induced protein-protein and DNA-protein cross-linking in neurodegenerative disorders..."
N-acetyl L-Carnosine"NALC is found as a product of carnosine systhesis in mammalian cardiac and skeletal musclesR and brainR. NALC has been administered to horses by naso-gastric tube at 70 mg/kg body weight with no negative side effectsR. This same study found that intravenous administration of NALC (at 20 mg/kg body weight) raised serum levels; naso-gastric administration did not. The reason for this is unknown, but since horses have a far different digestive system than humans (they also have no serum carnosinase enzyme) and acetylated amino acids are generally as well or better absorbed than their non-acetylated forms, this result does not imply that NALC will not be absorbed from the GI tract by humans. Still, bioavailability results for NALC in humans is currently unproven and needed."
"[NALC] can act as a time release (carrier) stable version of L-carnosine during application in ophthalmic pharmaceutical and cosmetics formulations which include lubricants. ..."An important chemical difference between carnosine and Nacetylcarnosine is that carnosine is relatively insoluble in lipids (fats and fatty compounds),
whereas N-acetylcarnosine is relatively soluble in lipids (as well as in water). This means that N-acetylcarnosine may pass through the lipid membranes of the corneal and skin cells more easily than carnosine, and may thereby gain access more readily to the cells interior, which is primarily aqueous. N-acetylcarnosine can be gradually broken down to carnosine which then exerts its beneficial effects."
Perhaps we need to be looking at N-acetyl L-Carnosine...
One scientist responds in this post that Carnosine is it is a potent antioxidant, it helps to chelate ionic metals (i.e. flush toxins from the body)...
Edited by solarfingers, 05 June 2013 - 02:58 AM.