Guest guest Posted July 6, 2001 Report Share Posted July 6, 2001 Pamela, please forward this to the gentleman: There is really no need for concern of " unbridled proteolysis " occuring with the use of oral enzyme supplements. If one's gut is functional enough to accept dietary foods (that is, no enteral/duodenal feeding tubes), then taking enzymes should still pose no problem. The generalized inflammation that often accompanies yeast infections is also not serious enough to be preclude enzyme supplementation. As the pancreas will respond to the presence of food with an outpouring of proteases whose activity will be controlled by endogenous protective mechanisms, in the same manner a dose of supplemented enzymes are also subject to the same controls, which I will detail. Cysteine proteases, such as papain, are inactivated by alpha-2 macroglobulin (a2M), cystatins, and thiol proteinase inhibitors (TPI- 1, TPI-3, TPI-4). These substances are ubiquitous in the blood plasma and tissues. Any systemic uptake of enzymes will eventually result in their inactivation by these substances. a2M, in particular, is quite efficacious in the inhibition of several classes of proteolytic enzymes. This explains why, according to the makers of Wobenzyme (a preparation used for years in systemic enzyme therapy), such high and frequent doses of enzymes are needed for whatever " treatment " the product is used for. As to systemic uptake of enzymes: While I have heard percentages of uptake of orally supplemented enzymes as high as 40%, most likely that percentage is much lower. Based on the work of Castell (1998) with bromelain, the percentage of active enzyme in serum was about 2%. Even so, given the catalytic nature of enzymes, this percentage could and does have a noticeable effect on such things as platelet aggregation and blood clotting times. As the formulator of SerenAid, I do not recall receiving a call from you, I'm sure if you had I would have given you the EC numbers of those enzymes listed (3.4.23.6 for fungal protease, 3.4.22.2 for papain, etc.) on the label. Perhaps you spoke to another person? The individual enzymes in SerenAid and other enzyme products have been in use in other various products and other applications for years (juice industry, soy fermentation, wine making, etc.) and have been well-characterized as to their pH optimum, temperature stability, and substrate specificities. As to the use of bromelain and papain as meat tenderizers, they indeed are; however, there is much difference in using enzymes on dead, denatured meat and in a vital, living system accustomed to the presence of such proteases. Devin Houston, Ph.D. > I am forwarding this to the group with the author's permission. Could > someone please answer the points this gentleman has made. This has been a > concern on the GFCFkidsUK list. > > Pamela > > > Re: [GFCFkidsUK] GFCF and Enzymes > > > > > > > I have expressed concerns before about the use of enzymes and in > particular the possibility of unbridled proteolysis. It seems generally > accepted that the gut is in bad shape, if you indiscriminately dose it with > protease enzymes then it is to be expected that the situation may > deteriorate. For the gut to be in such bad shape and accepting that there is > likely low native enzyme activity anyway then what is it going to look like > once you increase this activity? > > Enzymes are proteins too, if Gluten can pass, them so can enzymes (maybe), > I am concerned about the damage that such enzymes can do systemically. > > Enzymes are often talked about as being very specific to a particular > protein or peptide etc., this is not the case, they are specific to their > type of substrate but often will degrade similar. > > I don't think enzyme therapy extends to controlling bile excretion, it > does not stimulate Bicarbonate release either, this is necessary in most > cases to correct the acidity in the small intestine which is where secretin > comes in. > > In the grand scheme of things it is acid that (should) promote the release > of secretin into circulation, this is the signal for the pancreas to produce > the Bicarbonate (which neutralises the acid) and for it to release the > enzymes. It also has an effect on the parietal cells (the ones that make the > acid) and instructs them to stop. > > I'm not pro-secretin either (esp. not porcine but that is another issue) > but I'm posting all of this negative stuff to make anyone who is interested > in this therapy to do so under caution, I am considering it too BTW, but if > I do opt for it, it will be added to offending foods (e.g. in milk), > certainly not after or in between meals and at a minimal dose,just enough to > make a difference. > > Despite how it must seem I am excited about this therapy esp. now that I > have learned of a formula (Caroline's post) that comprises DPP-IV, the one > that tackles Gliadomorphine and Casamorphine, I would go for it if this was > available separately. I consider that the proteolysis is not as important as > breaking down the peptides that are the product of proteolysis. > > There is no dispute here that the results speak for themselves, I'm just > thinking long term effects. > > On Serenaid, I have some of this stuff in the cupboard, I was undecided if > I should use it and called them, I was put through to the man who formulated > the preparation and asked some specifics i.e the Enzyme Commision > designation, the man had no idea at all and this told me the product had not > been well investigated. Bromelain and Papain are pretty aggresive, they are > used as meat tenderisers, they are certainly not native of my child's gut. > > Should anyone on list be concerned about this, feel free > to pass my comments on . I don't mind scrutiny, even better if I am wrong > because then I would start them 1st thing tomorrow. > > Jon. > > > > Quote Link to comment Share on other sites More sharing options...
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