Glucosamine Plus

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Description

Description:
Glucosamine Plus™ contains a combination of glucosamine sulfate and chondroitin sulfate. Glucosamine sulfate is a well absorbed source of glucosamine, an important precursor for the synthesis and maintenance of connective tissues. Chondroitin sulfate also supports formation of connective tissues, primarily joint cartilage, and helps support existing cartilage. Individual results may vary.

Science:
FUNCTIONS Glucosamine is a naturally occurring amino sugar found ubiquitously in glycoproteins and glycosaminoglycans. Glycosaminoglycans, formerly named mucopolysaccharides, are an integral component of all connective tissues.

Connective tissue, a fibrous type of body tissue, has various functions. It supports and connects internal organs (ligaments), forms bone, cartilage, and the walls of blood vessels, attaches muscles to bones (tendons), and replaces tissues that have been damaged following injury.

The two main components of connective tissue are collagen and proteoglycans. Collagen is the strong, fibrous protein that physically connects our tissues. Proteoglycans are large carbohydrate-rich structures, resembling a bottlebrush in three-dimensional structure, i.e., a central protein rod with many strings of glucosaminecontaining glycosaminogly-cans extending outwards. Proteoglycans hold large amounts of water forming a stiff gel by virtue of their dense negative charges from sulfates. Proteoglycans are linked to collagen fibers to help form connective tissues, and proteoglycans provide resiliency, load distribution, shock-absorbing, compressive and lubricating properties to connective tissues and joints.
Glycosaminoglycans and proteoglycans are continuously being formed and replaced in connective tissues. Remodeling of connective tissues is also continuous, albeit slowly, with turnover half-lives of almost two years in healthy human joints. Turnover is accelerated in wound healing, arthritic joints, and burns. New synthesis of glycosaminoglycans has clinical importance in skin during normal wound healing, in bone during fracture repair and osteoporosis, and in joints. In these instances, glycosaminoglycan synthesis is necessary for healing, and enhancement of glycosaminoglycan and proteoglycan deposition may improve tissue repair. Glycosaminoglycans are synthesized primarily by fibroblasts (skin, tendons, ligaments), osteoblasts (bone), and chondrocytes (cartilage). Thus, the cell’s ability to manufacture glycosaminoglycans and secrete proteoglycans is crucial during any healing or joint disease process.

The availability of glucosamine is the key, rate-limiting step in glycosaminoglycan and proteoglycan synthesis in all connective tissues, such as skin, bone, cartilage, tendons, and ligaments. Only with sufficient glucosamine, the synthesis can proceed.

The body has a long metabolic pathway to synthesize a glucosamine derivative, UDP-N-acetylglucosamine, which is used for glycosaminoglycan synthesis. In addition, exogenous, i.e., dietary, glucosamine serves as an immediate precursor for glycosaminoglycan synthesis, and also stimulates incorporation of other precursors into the connective tissue matrix.

Chondroitin sulfate, a glycosaminoglycan formed in the body, is also used for the synthesis and maintenance of connective tissue, primarily within the cartilage matrix. In addition, chondroitin sulfate protects existing cartilage by reducing water loss from the matrix and by inhibiting the enzymatic breakdown of the cartilage. The overlapping activities as well as functional differences of glucosamine and chondroitin sulfate offer several advantages for combined supplementation. Although glucosamine is a precursor for chondroitin synthesis, this process requires large amounts of metabolic energy. Dietary preformed chondroitin sulfate spares the use of glucosamine for this purpose. Instead glucosamine can be used for formation of other important glycosaminoglycans and proteoglycans. When adequate chondroitin sulfate is thus available to help protect tissues from premature breakdown, glucosamine can more readily stimulate synthesis of healthy new tissue. Glucosamine is almost universally found in small amounts in most foods. However, bioavailability of glucosamine from foods is largely unknown. Bioavailability of oral glucosamine sulfate is excellent. It is absorbed intact, and utilized very quickly by all tissues, including connective tissues. Chondroitin sulfate is found in most animal tissues. Orally ingested chondroitin sulfate is also well absorbed and distributed to tissues.

In summary, glucosamine sulfate is a well-documented, highly effective source of glucosamine for glycosaminoglycan and proteoglycan synthesis in all connective tissues. Chondroitin sulfate is an excellent source of n-acetylgalactoaminoglycan for synthesis and protection of proteoglycans associated with cartilage tissues.

INDICATIONS Glucosamine Plus capsules may be a useful nutritional adjunct for individuals who wish to support the body’s connective tissues, such as skin, tendons, ligaments, bone, and cartilage.

FORMULA (GCSP) Each Glucosamine Plus capsule contains: Glucosamine sulfate 2KCl………………………………………….. …………………250mg Chondroitin sulfate………………………………………………………………………200mg

SUGGESTED USE Glucosamine Plus: One to three capsules twice daily or as directed by a physician.

SIDE EFFECTS No adverse side effects have been reported.

STORAGE Store in a cool, dry place, away from direct light. Keep out of reach of children.

REFERENCES

Böhmer D, Ambrus P, Szögy A, and Haralambie G. Treatment of chondropathia patellae in young athletes with glucosamine sulfate. In: Current Topics Sports Medicine (Bachl N et al., eds.) Urban & Schwarzenberg, Vienna, 1984, p.799. Crolle G, and D’Este E. Glucosamine sulfate for the management of arthrosis: a controlled clinical investigation. Curr. Res. Med. Opin. 1980; 7:104. D’Ambrosio E, Casa B, Bompani R, Scali G, and Scali R. Glucosamine sulfate: a controlled clinical investigation in arthrosis. Pharmatherapeutica 1981; 2:504. Drovanti A, Bignamini AA, and Rovati AL. Therapeutic activity of oral glucosamine sulfate in osteoarthritis: a placebo-controlled double-blind investigation. Clin. Ther. 1980; 3:260. Engel M, Maurel P, Margolis RK .Chondroitin sulfate proteoglycans in the developing central nervous system. I. Cellular sites of synthesis of neurocan and phosphacan. J Comparative Neurology 1996;366:34-43. Lopes Vaz A. Double-blind clinical evaluation of the relative efficacy of ibuprofin and glucosamine sulfate in the management of osteoarthrosis of the knee in outpatients. Curr. Res. Med. Opin.1982; 8:145 McCarty MF. Glucosamine for wound healing. Medical Hypothesis 1996;47:273-275. Morreale P, et al. Comparison of the antiinflammatory efficacy of chondroitin sulfate and diclofenac sodium in patients with knee osteoarthritis. J Rheumatol 1996;23:1385-91. Piptone VR. Chondroprotection with chondroitin sulfate. Drugs Exp Clin Res 1991;17 (1):3-7. Pujalte JM, et al. Double-blind clinical evaluation of oral glucosamine sulfate in the basic treatment of osteoarthrosis. Curr Med Res Opin 1980;7:110- 114. Tapadinhas MJ, Rivera IC, Bignamini AA. Oral glucosamine sulfate in the management of arthrosis: report on a multi-centre open investigation in Portugal.1982;3(3):157-168.
For more information on Glucosamine Plus™ visit douglaslabs.com
† 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.

Supplement Facts:
Amount Per Serving
Serving Size 1 Vegetarian Capsule • Servings Per Container 120
each vegetarian capsule contains:
Glucosamine Sulfate 2KCl (from crab and shrimp)
250 mg
Chondroitin Sulfate
200 mg
Other ingredients: Cellulose, vegetable stearate and silica.
Suggested Usage: 1-3 daily

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