We did such a good job with discussing increasing Resveratrol Bio-Availability, I was wondering why not dissuss similiar techniques in regard to curcumin where as it suffers from the same problems as Resveratrol, namesly: low water soluability in PH acidic and neutral solutions, quick metabolism, all resulting in low bio-availibility.
Curcumin is proven to be very effective in inducing apoptosis in cancer cells in vitro where we can bypass metabolism by introducing curcumin directly into a cell culture:
Polymeric nanoparticle-encapsulated curcumin ("nanocurcumin"): a novel strategy for human cancer therapy.Bisht S, Feldmann G, Soni S, Ravi R, Karikar C, Maitra A, Maitra A.The Sol Goldman Pancreatic Cancer Research Center, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. sbisht1@jhmi.edu
BACKGROUND: Curcumin, a yellow polyphenol extracted from the rhizome of turmeric (Curcuma longa), has potent anti-cancer properties as demonstrated in a plethora of human cancer cell line and animal carcinogenesis models. Nevertheless, widespread clinical application of this relatively efficacious agent in cancer and other diseases has been limited due to poor aqueous solubility, and consequently, minimal systemic bioavailability. Nanoparticle-based drug delivery approaches have the potential for rendering hydrophobic agents like curcumin dispersible in aqueous media, thus circumventing the pitfalls of poor solubility. RESULTS: We have synthesized polymeric nanoparticle encapsulated formulation of curcumin - nanocurcumin - utilizing the micellar aggregates of cross-linked and random copolymers of N-isopropylacrylamide (NIPAAM), with N-vinyl-2-pyrrolidone (VP) and poly(ethyleneglycol)monoacrylate (PEG-A). Physico-chemical characterization of the polymeric nanoparticles by dynamic laser light scattering and transmission electron microscopy confirms a narrow size distribution in the 50 nm range. Nanocurcumin, unlike free curcumin, is readily dispersed in aqueous media. Nanocurcumin demonstrates comparable in vitro therapeutic efficacy to free curcumin against a panel of human pancreatic cancer cell lines, as assessed by cell viability and clonogenicity assays in soft agar. Further, nanocurcumin's mechanisms of action on pancreatic cancer cells mirror that of free curcumin, including induction of cellular apoptosis, blockade of nuclear factor kappa B (NFkappaB) activation, and downregulation of steady state levels of multiple pro-inflammatory cytokines (IL-6, IL-8, and TNFalpha). CONCLUSION: Nanocurcumin provides an opportunity to expand the clinical repertoire of this efficacious agent by enabling ready aqueous dispersion. Future studies utilizing nanocurcumin are warranted in pre-clinical in vivo models of cancer and other diseases that might benefit from the effects of curcumin.
I was hoping that we could discuss how the techniques might help in improving curcumin bio-availibility. (I will also mention here that curcumin is implicated in possible altzheimers prevention and otherwise cognitive improvements so that it might be useful to those not interested in cancer prevention)
Ways to improve bio-availibility:
1: Co-supplementation with 20 mg of piperine (extracted from black pepper) significantly increased the absorption of curcumin by 2000%.
Peperine is what is used in the LEF brand enhanced curcumin, but it heavily interacts with other meds one may be taking, and I believe is generally frowned upon here.
2: Disolve in oil Curcumin is fully soluable in oil. Ideally we would want the smallest particles possible. Perhaps someone is more familiar with the mechanics of how something like curcumin would be 'disolved' in an oil. I'm not sure if it would disolve in a similiar manner as it would in ethanol, or whether a lipid emulsion would form where lipid droplets form around the drug. Either way, disolving in oil is a good way to go, however reducing particle size before hand may be important. This is probably the most practical method if you are going to put curcumin in a food dish.
3: Ethanol + PEG 3350 This should work just as well in curcumin as it does in resveratrol. Directions: Disolve curcumin in ethanol (everclear will do), then mix in a PEG3350 (miralax) and water solution.
4: DMSO Curcumin should dislove well in DMSO.