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Tea culture in china
Tea culture in china
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BENEFITS OF GREEN TEA
Green tea comes from the same plant as white, black, and oolong tea – Camellia sinensis– a plant native to Asia. Two major varieties are grown — Camellia sinensis var. sinensis for Chinese teas, and Camellia sinensis var. assamica for Indian Assam teas; the former was the first tea plant to be discovered and is the source of most green teas in the market.
Green tea is unfermented, while black tea is fermented. Green tea is particularly rich in substances called polyphenols which have strong antioxidant and anticancer activities. Green tea polyphenols (GTP) surpass vitamins C and E in their antioxidant protective properties.
With this unique cocktail of antioxidants, green tea has a lot to offer.
Protects Against Chronic Disease
The flavonoids in green tea are powerful soldiers against viruses as well as both
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This is the concept behind chemotherapy drugs, most of which work to inhibit one of the steps in cell division. Cancer cells may be at different points in the process of dividing, and this is the rationale for using a combination of drugs – to hit different places along the path of division so you can kill a cancer cell no matter which stage it is in.
Several studies have found that components in green tea, particularly EGCG, have worked in a number of ways to cause “cell cycle arrest” – in other words, stopping the process of a cancer cell dividing. The interesting thing with green tea is that it often interrupts this process without affecting cell division among normal cells.
Keep Blood Sugar in Balance
One of the many health benefits of green tea, it helps regulating the glucose level in the body, thereby reducing the harmful effects of low insulin. According to University of Maryland Medical Centre, green tea not only prevents type 1 diabetes from developing but also slows it down if it already is developing in the
The problem of failing to fall asleep or sleep for enough hours has been there since the ancient time. However, this sleep disorder has become more common now than then, which is a risk to our health. Taking a cup of sleepytime tea is said to help in treating this disorder naturally. Sleepytime tea is a drink that is prepared from a blend of ingredients that include herbs with sedative properties to sooth and help you relax for a healthy sleep.
Chemotherapy is the treatment of a tumor with chemical agents to reduce mass or eradicate a tumor completely. There are certain mechanisms by which chemotherapy inhibits cancer. The first mechanism is cell death by cytotoxicity. Some chemical agents in certain amounts are toxic to cells. The cells die due to the toxic...
..., while a cell undergoes cell cycle, when a cell comes in contact with another cell, it stops reproducing. However, cancer cells continue to duplicate repeatedly until there is a mass of cells or a tumor to form (see figure 9). Lastly, in cell division when there is a mutation or abnormality in the DNA, a normal cell stops dividing. However, a cancerous cell will continue to duplicate and form mutations (“Cell Biology and Cancer”). Also, cancer cells are harmful because they grow and duplicate with complete disregard to the functions and limitations of the body (see figure 10). Also, cancerous cells have the ability to spread through metastasis throughout parts of the body through the bloodstream. In terms of similar behavior to that of normal cells, cancerous cells also duplicate, but at a very different rate ("Cancer Cells vs. Normal Cells: What's Different?").
Li, Y., Wicha, M. S., Schwartz, S. J., & Sun, D. (2011, February 4). Implications of Cancer Stem Cell Theory for Cancer Chemoprevention by Natural Dietary Compounds. Retrieved December 12, 2013, from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3248810/
There are some specific checkpoint which is the regulation mechanism of the cell cycle. When certain conditions are met, the cell cycle will continue, so the cell ...
Type 1 diabetes is a life long disease and needs life-long control and treatment. Various organizations and foundations have also been created to spread the awareness of diabetes and to enhance research on diabetes to improve the quality of life and reduce dependence on insulin. Natural herbs and remedies could be one of the ways!
... over normal proliferating cells (Figure 1) It is important to target events taking place at the same time in the cell cycle in order to boost effectiveness of the arrest and the results. In addition, it is important to characterize tumors precisely in order to clarify where the deficiencies on the cell cycle control are accrued and which of the phases have to be targeted for successful therapy. Furthermore, in the future, identification of new tumor specific isoenzymes will be necessary to characterize the cell cycle accurately and comprehend the differences between normal cells and cancer cells for the design of novel anticancer therapies (Diaz-Moralli, et al. 2013).
The cell cycle is the process by which cells progress and divide. In normal cells, the cell cycle is controlled by a complex series of signaling pathways by which a cell grows, replicates it’s DNA and divides, these are called proto-oncogenes. A proto-oncogene is a normal gene that could become an oncogene due to mutations. This process has mechanisms to ensure that errors are corrected, if they are not, the cells commit suicide (apoptosis). This process is tightly regulated by the genes within a cell’s nucleus. In cancer, as a result of genetic mutations, this process malfunctions, resulting in uncontrolled cell proliferation. Mutations in proto-oncogene or in a tumour suppressor gene allow a cancerous cell to grow and divide without the normal control imposed by the cell cycle. A change in the DNA sequence of the proto-oncogene gives rise to an oncogene, which
The discussion of this paper focuses on the current development in etiology and pathogenesis, and the treatment of type 1 diabetes, and the prospects of new researches on type one diabetes.
Healthy cells grow and divide in a way to keep your body functioning properly. But when a cell is damaged and becomes cancerous, cells continue to divide, even when new cells aren't...
Cancer is a major public health problem in many parts of the world. Over ten million new cases of cancer, with over six million deaths were estimated in the year 2000 (Parkin, 2001). The estimated numbers of incidence and mortality in 2002 were markedly increased as 10.9 million new cases, 6.7 million deaths with cancer (Parkin et al., 2005). Even developed countries suffering from cancer, in USA it was expected 2677860 new cases of cancer will be diagnosed in 2009. In that same year , more than 562,340 deaths will occur due to cancer, this number represent 25 % of all deaths and makes cancer as a second leading cause of death after heart diseases (Jemal et al.
Drinking water is one of our basic needs in order to survive, therefore the water that we drink and cook with must be of a high quality, and filtered of any harmful contaminants.
By harnessing this normal cell process, scientists hope to have found an effective way to combat cancer. Cancer is a disease that affects human somatic cells. It causes the cells to divide uncontrollably and form masses known as tumors. There are two different types of cancer tumors. Some tumors are benign, and other tumors are malignant.
Americans are obsessed with a lot of things: our smart phones, celebrities, and finding a good bargain. But perhaps the thing we’re most obsessed with is good ol’ coffee. For many of us, our mornings are perfectly diabolical without at least a cup or two or three of the stuff. And, come 2 o’clock, when we know in our heart and bones we’ll never make it ‘til five and we need that pick me up, many of us head to the nearest deli or barista to grab a cup of “second wind.”
Green tea is made from the plant Camellia Sinensis’s leaves without fermentation (Suzuki, Miyoshi & Isemura, 2012) and is regarded as a popular and healthy drink in Asian countries because of its health-promoting potentials such as protecting against cancer and cardiovascular disease (Harvard Health Publications, 2012; Iwasaki et al., 2014). Lots of the positive effects are due to the antioxidative activity of (-)-epigallocatechin gallate (EGCG) which is a major component of green tea (Suzuki et al., 2012). And it draws researchers’ interests and attentions to further investigate. According to Suzuki et al., one example of the health advantages is that catechins in green tea bring an anti-obesity effect by stimulating lipid metabolism in liver (2012).