
Calcium D-Glucarate, provided by Douglas
Laboratories, is a natural supplement of D-glucaric acid bound to calcium. Calcium D-glucarate enhances the body’s natural
defenses against environmental toxins and excess steroid hormones. Through the
actions of its metabolite D-glucaro-1,4-lactone, calcium-d-glucarate indirectly
favors glucuronidation, an important system that the body relies upon to
deactivate and eliminate toxins and steroid hormones. Glucuronidation is a conjugation process through
which potentially carcinogenic environmental toxins, such as polycyclic aromatic
hydrocarbons and nitrosamines, and excess steroid hormones are
neutralized. During glucuronidation, the enzyme glucuronosyl transferase
catalyzes the conjugation of free carcinogens and steroid hormones to glucuronic
acid. The resulting glucuronide-bound toxins and hormones can then be safely
excreted in bile and urine. The body also deconjugates glucuronide-bound end
products. The release of glucuronide-bound substances is beneficial in some
circumstances, for example, when the excretion of steroid hormones is
undesirable. Yet, the deconjugation process, which works via the enzyme beta-glucuronidase,
can result in the re-release of harmful toxins back into the body. The benefits
of calcium D-glucarate are realized indirectly through the action of its
metabolite Dglucaro- 1,4-lactone, which inhibits the deconjugating enzyme beta-glucuronidase
found in both blood and tissue. Inhibition of beta- lucuronidase causes a net
increase in glucuronidation, and thereby enhances a primary detoxification
pathway in the body. Animal studies have documented a decrease in B-glucuronidase
activity in breast, liver, colon, skin, lung, and prostate tissue following oral
administration of calcium Dglucarate. Once ingested, calcium D-glucarate is converted to
Dglucaric acid in the presence of gastric HCl. The body normally maintains an
equilibrium between D-glucaric acid and its two metabolites,
D-glucaro-1,4-lactone and D-glucaro-6,3-lactone. Calcium D-glucarate provides a
slow-release source of D- lucaro-1,4-lactone. When taken directly, D-glucaro-
1,4-lactone is metabolized quite quickly and is excreted from the body usually
within 1-2 hours of its administration. Calcium D-glucarate, however, is
metabolized slowly, remaining in the body for 5 or more hours after ingestion.
This results in maintenance of stable levels of D-glucaro-1,4-lactone for long
periods of time. D-glucaric acid is produced endogenously in small
amounts. It is also present in some fruits and vegetables, including oranges,
apples, grapefruit, broccoli and other cruciferous vegetables. Calcium D-Glucarate may be a useful dietary
supplement for those who wish to supplement their diet with D-glucaric acid as a
precursor to D-glucaro- 1, 4-lactone. One to two capsules daily as a dietary supplement,
or as directed by physician. No adverse effects have been reported. Store in a cool, dry place, away from direct
light. Keep out of reach of children. Abou-Issa H, Moeschberger M, el-Masry W, et al. Relative
efficacy of glucarate on the initiation and promotion phases of rat mammary
carcinogenesis. Anticacner Res 1995;15(3):805-10. Abou-Issa H, Koolemans-Beyen A, Meredith TA, Webb TE.
Antitumor synergism between non-toxic dietary combinations of isoretinoin
and glucarate. Eur J Cancer 1992;28A(4-5):784-8. Abou-Issa HM, Duruibe VA, Minton JP, et al. Putative
metabolites derived from dietary combineations of caclium glucarate and
N-(4- hydroxyphenyl)retinaminde act synergistically to inhibit the induction
of rat mammary tumors by 7,12-dimethylbenz[a]antracene. Proc Natl Acad Sci
USA 1988;85(12):4181-4. Dwivedi C, Heck WJ, Downie AA, et al. Effect of calcium
glucarate on beta-glucuronidase activity and glucarate content of certain
vegetables and fruits. Biochem Med Metab Biol 1990;43(2):83-92. Dwivedi C, Oredipe OA, Barth RF, et al. Effects of the
esperimental chemopreventive agent, glucarate, on intestinal carcinogenesis
in rats. Carcinogenesis 1989;10(8):1539-41. Heerdt AS, Young CW, Borgen PI. Calcium glucarate as a
chemopreventive agent in breast cancer. Isr J Med Sci 1995;31:101-105. Oredipe OA, Barth RF, Dwivedi C, Webb TE. Dietary
glucaratemediated inhibition of diethylnitrosamine-induced
hepatocarcinogenesis. Toxicology 1992;74(2-3):209-22. Oredipe OA, Barth RF, Hanausek-Walaszek M, et al. Effects of
calcium glucarate on the promotion of diethylnitrosamine-initiated altered
hepatic foci in rats. Cancer Lett 1987;38(1-2):95-9. Oredipe OA, Barth RF, Dwivedi C, Webb TE. Chemopreventive
activity of dietary glucarate on azoxymethane-induced altered hepatic foci
in rats. Res Commun Chem Pathol Pharmacol 1989;65(3):345- 9. Walaszek Z, Szemraj J, Narog M, et al. Metabolism, uptake,
and excretion of a D-glucaric acid salt and its potential use in cancer
prevention. Cancer Detect Prev 1997;21(2):178-90. Walaszek Z, Hanausek-Walaszek M, Webb TE. Dietary
glucaratemediated reduction of sensitivity of murine strains to chemical
carcinogenesis. Cancer Lett 1986;33(1):25-32. Walaszek Z, Hanausek M, Sherman U, Adams AK.
Antiproliferative effect of dietary glucarate on the Sprague-Dawley rat
mammary gland. Cancer Lett 1990;49(1):51-7. Webb TE, Pham-Nguyen MH, Darby M, Hamme AT 2nd.
Pharmacokinetics relevant to the anti-carcinogenic and anti-tumor activities
of glucarate and the synergistic combination of glucarate:retinoid in the
rat *These statements have not been evaluated by the Food and Drug
Administration. This product is not intended to diagnose, treat, cure, or
prevent any disease.
Description
Functions
Indications
Suggested Use
Side Effects/Warnings
Storage
References:
Each capsule
contains:
Calcium D-Glucarate
500 mg
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