Friday, 2 March 2018

Herbal Therapy: Green Tea, the Camellia Sinensis Leaves In Spelled Death of Tuberculosis in Third World Countries

Kyle J. Norton 

Green tea may have a therapeutic and positive effect in reduced risk and progression and treatment of tuberculosis (TB), some scientists suggested.

Tuberculosis (TB) is a disease caused by bacteria called Mycobacterium tuberculosis. Commonly, the bacteria attacked the lung tissue but also can cause major damage to other parts of the body.

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

According to statistic, 25% of the world's population is infected with TB. In 2016, 10.4 million people around the world became sick with the disease induced 1.7 million deaths.

In the investigation of the effect of reactive oxygen species (ROS) in risk of tuberculosis of a total of 200 newly diagnosed cases of AFB positive pulmonary tuberculosis, with 100 patients randomly received catechin (500 microg) with antitubercular treatment (ATT) (cases) and the other 100 received starch (500 microg) with ATT (control), researchers at the Chhatrapati Shahuji Maharaj Medical University found that CTN treatment group exerted a significant activity in reduced levels of free radical expression through reduced oxidative stress in compared to control, observed by analysis of the blood samples.

Further analysis suggested that green tea CTN treatment group restored the balanced of antioxidant and free radicals ratio by stimulated production of levels of enzymatic antioxidant (catalase, superoxide dismutase, glutathione peroxidase) and non enzymatic antioxidant (total thiol, reduced glutathione) levels and significant decreased expression of free radicals (lipid peroxidation, nitric oxide).
These results re-constituted the efficacy of crude catechin extract as adjuvant therapy in management of oxidative stress seen in pulmonary tuberculosis patients.

Moreover, in monitor the extent of oxidative stress in mice infected with M tuberculosis and the role of crude green tea extract in repairing the oxidative damage by divided them into three groups of  normal, infected-untreated and infected-treated with 9 members in each group, scientists indicated that infectous untreated group exerted a significant enhancement of antioxidants produced by the natural defense of the body such as  erythrocytic catalase and glutathione peroxidase activities along with elevated levels of free radical defenders such as erythrocytic total thiols but decreased levels of antioxidant activity of superoxide dismutase and  glutathione in erythrocytes and increased levels of free radicals plasma lipid peroxidation as compared to normal animals as expected.

These results suggested that non CTN tested mice exerted the protection against application of infectious agent selectively either through expression of natural antioxidant produced by the body or  antioxidants produced by the body were inhibited by the injection substance.

Importantly, ingestion of green tea CTN upon 7 days in infectious mice group completely restored the normal values of antioxidants and ROS ratio observed by the oxidative stress parameters.

In other words, green tea treatment group showed an increased catalase, glutathione peroxidase, total thiol and decreased extent of lipid peroxidation with concomitant increase in the levels of SOD and glutathione in infected animals, thus reducing development of tuberculosis risk.

The above differentiation were supported by the Department of Experimental Medicine and Biotechnology, Chandigarh in the study to determine whether or not polyphenols derived from green tea could down-regulate TACO gene transcription in reduced uptake/survival of M. tuberculosis within macrophages.

According to the The reverse-transcriptase polymerase chain reaction and reporter assay technology, application of major component of green tea polyphenols, epigallocatechin-3-gallate EGCG reduced expression of TACO gene transcription within human macrophages through its ability in inhibited Sp1 transcription factor in blocking the mycobacterial entry/survival within human macrophages in initiation of infectious cellular processes, including cell differentiation, cell growth, immune responses.

Dr. Anand PK, the lead authors, said, "The down-regulation of TACO gene expression by epigallocatechin-3-gallate was accompanied by inhibition of mycobacterium survival within macrophages as assessed through flow cytometry and colony counts" and "epigallocatechin-3-gallate may be of importance in the prevention of tuberculosisinfection".

Taken together, green tea and its bioactive polyphenols in attenuated risk and treatment of tuberculosis caused by Mycobacterium tuberculosis may contribute significantly to the prevention and treatment of tuberculosis in third world countries where the conventional medicine are scarce or un-affordable to general population.

Reprint of this article is welcome with author name and link to the article sources intact

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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 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.

(1) Effect of green tea extract (catechins) in reducing oxidative stress seen in patients of pulmonary tuberculosis on DOTS Cat I regimen by Agarwal A1, Prasad R, Jain A.(PubMed)
(2) Protective effect of green tea extract against the erythrocytic oxidative stress injury during mycobacterium tuberculosis infection in mice by Guleria RS1, Jain A, Tiwari V, Misra MK.(PubMed)
(3) Green tea polyphenol inhibits Mycobacterium tuberculosis survival within human macrophages by Anand PK1, Kaul D, Sharma M.(PubMed)

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