Herbal Therapy: Green tea and Its Bioactive Polyphenols in Protection of Cartilage Inside The Joint in Patients of Arthritis

Kyle J. Norton 

Green tea may have a therapeutic and positive effect in protection of the cartilage against the degeneration of arthritis in the joint, some scientists suggested.

Green tea, is a precious drink processes numbers of health benefit known to almost everyone in Asia and Western world.

Cartilage is a connected tissue, rubber-like padding between the joint of the bone with function to protect against bones rubbing against each other at the end points.

In the study of adolescent male Wistar rats 12-week exposure to Cd and Pb (7mg Cd and 50mg Pb in 1kg of the diet ramdomlt assigned to 12 to each group, as positive control received without Cd, Pb and teas, a negative control group received Cd and Pb, and groups supplemented additionally with green (GT), black (BT), red (RT), and white tea (WT), application of tea significant inhibited the decreased levels of the geometric(shape) and densitometric(density) parameters and total thickness of articular cartilage caused by Cd and Pb in compared to the negative control group.

Tea injection group also displayed a huge improvement in mechanical endurance, growth plate thickness, and trabecular histomorphometry depending on the tea type.

Due to limitation of the study, dr. Tomaszewska E, the lead researcher said, " It is difficult to indicate which tea has the best protective effects on bone and hyaline cartilage against heavy metal action".

Some scientists insisted that green tea with bioactive epigallocatechin-3-gallate, a green tea polyphenol, may be the one was contributed to the cartilage protection against various types of influence.

 Application of green tea EGCG in drinking water of mice was found to prevent collagen-induced arthritis through inhibiting the production of certain proinflammatory factors in association of damage of collagen such as tumor necrosis factor alpha (TNFα), a cell signaling cytokine with pro inflammatory involvement in systemic inflammation and cyclooxygenase-2, an enzyme in response to inflammation and pain.

In EGCG treatment of human chondrocytes derived from OA cartilage, the application inhibited and modulated IL-1β cytokines in induced activity and expression of cyclooxygenase-2 through its immune and inflammatory signalling and production of nitric oxide in contribution of T lymphocyte dysfunction. and prostaglandin E2 in promotion of inflammation in chondrocytes.

According to the study, the inhibition of IL-1β by EGCG in human chondrocytes was also associated with its inhibitory effects on the activation of nuclear translocation of NF-κB in expression of proinflammatory activity.

Dr. Santosh K Katiya, the lead author, after taking into account of other co founders said, "These data thus provide a mechanistic link in prevention of arthritis responses as well as potential therapeutic value for EGCG/GTPs inhibiting cartilage resorption in arthritic joints".

Truly, in investigated the effects of catechins found in green tea on cartilage extracellular matrix components using bovine nasal and metacarpophalangeal cartilage as well as human non diseased, osteoarthritic and rheumatoid cartilage cultured with and without reagents known to accelerate cartilage matrix breakdown in vitro, researchers found that catechins, containing gallate ester, were most effective in inhibited proteoglycan and type II collagen breakdown without inducing advserse effects.

These results suggested that some green tea catechins may have a significant effect in protected or delayed against cartilage reduction and joint damage through protection of chondrocytes.

Dr. Adcocks C, the lead author said, "green tea may be prophylactic for arthritis and may benefit the arthritis patient by reducing inflammation and slowing cartilage breakdown".

Taken together, green tea with bioactive popyphenols may be considered as a functional food for reduced or delayed progression of cartilage damage against type II collagen degradation and used combination with standard medicine for treatment of cartilage inside the joint in arthritis patients.

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Author Biography
Kyle J. Norton (Scholar, Master of Nutrients, All right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published on line, including world wide health, ezine articles, article base, healthblogs, selfgrowth, best before it's news, the karate GB daily, etc.,.
Named TOP 50 MEDICAL ESSAYS FOR ARTISTS & AUTHORS TO READ by Disilgold.com Named 50 of the best health Tweeters Canada - Huffington Post
Nominated for shorty award over last 4 years
Some articles have been used as references in medical research, such as international journal Pharma and Bio science, ISSN 0975-6299.

Sources
(1) Alteration in bone geometric and mechanical properties, histomorphometrical parameters of trabecular bone, articular cartilage, and growth plate in adolescent rats after chronic co-exposure to cadmium and lead in the case of supplementation with green, black, red and white tea by Tomaszewska E1, Dobrowolski P2, Winiarska-Mieczan A3, Kwiecień M3, Tomczyk A4, Muszyński S5, Radzki R4.(PubMed)
(2) Green tea: a new option for the prevention or control of osteoarthritis by Santosh K Katiyar1,2 and Chander Raman(PMC)
(3) Catechins from green tea (Camellia sinensis) inhibit bovine and human cartilageproteoglycan and type II collagen degradation in vitro by Adcocks C1, Collin P, Buttle DJ.(PubMed)