Green tea may have a therapeutic and positive effect in blocking the onset and treatment of gout and recurrent gout, some scientists suggested.
Gout is a condition of recurrently inflammatory arthritis characterized by a red, tender, hot, and swollen joint caused by overexpression of purine in the body.
Gout is caused by an excess of uric acid in the blood, or hyperuricemia. Uric acid is a by-product that is produced during the digestive process in the breaking down of chemical ingredients purines.
Purines are natural nitrogen-containing compounds found in the cell DNA and RNA, including adenine (6-aminopurine) and guanine (2-amino, 6-oxypurine), is made inside the cells of the body.
Under normal condition, uric acid is eliminated by the kidney through urination. However, a high uric acid level can occur when the kidneys don't eliminate uric acid efficiently. People with kidney deficiency are associated with high levels of uric acid if foods with high levels of purines are consumed in a large amount, including red meat, seafood, and mushroom.
Some researchers suggested that people who are obese, overweight with diabetes, long-term use of diuretics and excessive alcohol drinking are associated with the risk of high levels of uric acid in the blood.
Additionally, genetic mutation inherited from the parents such as Q141K polymorphism and CFTR ΔF508 certain medical conditions such as tumor lysis syndrome, hypothyroidism, and psoriasis are also some major risk factors to cause excessive levels of uric acid in the blood.
If you are currently taking long-term medications as maintenance therapy, to keep uric acid levels steady. Please make sure that you are aware of their side effects.
Green tea, a precious drink processes numbers of health benefit known to almost everyone in Asia and Western world.
According to the joint study led by the University of Nagasaki, green tea and its bioactive compounds Epigallo catechin-O-gallate (EGCG) may be considered as a putative curative drug for various diseases of gout, through its properties in reducing the vascular endothelial growth factor receptor 2 (VEGFR2) in response to vascular endothelial growth factor signal (VGFG) for the formation of gout through expression of levels of uric acid.
The study also emphasized that green tea with high levels of antioxidant and function in the stimulated production of natural antioxidant in the body may also be used to reduce symptoms of recurrently inflammatory arthritis and inflammatory arthritis such as gout, through inhibiting the oxidative stress in the induced production of inflammatory cytokines to facilitate symptoms of inflammation.
The above differentiation was supported by the study of the effect of EGCG on monosodium urate monohydrate (MSU)-induced inflammation and cryopyrin (NLRP3 inflammasome) activation in C57BL/6 mice received a subcutaneous injection or oral gavage of EGCG before the intraperitoneal injection of MSU.
Truly, the application green tea EGCG decreased expression of gouty arthritis caused by injection of MSU-induced neutrophil infiltration with a function to initiate inflammation in the acute phase of infection and IL-1β secretion, in response and resistance to pathogens, but can also exacerbate damage during chronic disease and acute tissue injury.
The injection of green EGCG also decreased MSU-triggered neutrophil cytosolic factor 1, in the activated inflammatory response to optimize healing and reduce injury to the body but the proteins have been found to cause severe damage to the infectious site and NLRP3 protein expression in initiated systematic inflammatory expression.
Moreover, the effect of green tea in protection against gout occurrence also limited pro-inflammatory mediator secretion interleukin 1 beta (IL1β), a mediator of inflammation, in response to acute phase infection, interleukin 6 (IL-6) produced by large amount at sites of acute and chronic inflammation, monocyte chemoattractant protein-1 in regulated monocytes, memory T cells, and dendritic cells to the sites of inflammation, and serum amyloid A, the serum was found to increase substantially in patients of chronic inflammatory disease, without limiting the function of the mediators in protect the infectious site against pathogens invasion.
More profoundly, the efficacy of green tea in reduced recurrent gout also extended to suppress NLRP3 inflammasome in stimulated caspase-1 in promoted secretion of others proinflammatory cytokines activation.
Dr. Jhang JJ, the lead author said, "EGCG treatment ameliorates MSU-induced inflammation, suggesting that EGCGexerts anti-inflammatory effect against MSU-induced acute gout attack."
Additionally, the University of Pretoria suggested that polyphenols extracted from green tea also exhibited an antioxidant effect in reducing the pronounce of oxidative stress by their antioxidant properties.
Catechin (C) (Ki = 303.95, uncompetitive), epicatechin (EC) (Ki = 20.48, mixed), epigallocatechin (EGC) (Ki = 10.66, mixed), epicatechin gallate (ECg) (Ki = 2.86, mixed) and epigallocatechin gallate (EGCg) (Ki = 0.76, competitive) were found to have similar efficacy as allopurinol (Ki = 0.30, mixed), the drug used to inhibit the levels of xanthine oxidase (XO) in gout patients, through reducing reactive oxygen species in the initiation of oxidative stress that facilitates the inflammatory symptoms.
Taken all together, green tea and its bioactive polyphenols may be considered as a functional food for reduced onset and combined with conventional medicine for the treatment of gout with no adverse effects.
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Author Biography
Kyle J. Norton (Scholar, Master of Nutrition, All right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published online, including worldwide health, ezine articles, article base, health blogs, self-growth, 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 Bioscience, ISSN 0975-6299.
Sources
(1) [Multiple actions of EGCG, the main component of green tea].[Article in French] by L'Allemain G1.(PubMed)
(2) Epigallocatechin gallate inhibits urate crystals-induced peritoneal inflammation in C57BL/6 mice by Jhang JJ1, Lu CC1, Yen GC2. (PubMed)
(3) Inhibition of xanthine oxidase by catechins from tea (Camellia sinensis) by Aucamp J1, Gaspar A, Hara Y, Apostolides Z.(PubMed)
(4) Beneficial Properties of Phytochemicals on NLRP3 Inflammasome-Mediated Gout and Complication by Jhang JJ1, Lin JH1, Yen GC1.(PubMed)
(5) Association and interaction effect between VEGF receptor-2 (VEGFR-2) gene polymorphisms and dietary pattern on blood uric acid in Malays and Indians by Roseline YW1, Shidoji Y1, Hon WM2, Masaki M1. (PubMed)
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