Monday, November 14, 2011

Organic Tava Tea Researches - The Ingredients of Green Sencha Health Benefits -Antidepressant Properties

Written by Chanel M. contributed by Kyle J. Norton, All right reserve

Sencha
is a type of decoct Japanese green tea, most popular tea in Japan, made from the dried tea leaves without grinding the tea leaves. It volatile compounds could be used as markers for the overall quality evaluation of all green teas, according to the study of "Predication of Japanese green tea (Sen-cha) ranking by volatile profiling using gas chromatography mass spectrometry and multivariate analysis" by Jumtee K, Komura H, Bamba T, Fukusaki E.[1].

Green Sencha Health Benefits
21. Antidepressant Properties
a. In the observation of the effects of Green tea consumption and psychological distress of the study of "Green tea consumption is associated with lower psychological distress in a general population: the Ohsaki Cohort 2006 Study" by Atsushi Hozawa, Shinichi Kuriyama, Naoki Nakaya, Kaori Ohmori-Matsuda, Masako Kakizaki, Toshimasa Sone, Masato Nagai, Yumi Sugawara, Akemi Nitta, Yasutake Tomata, Kaijun Niu, and Ichiro Tsuji[21a], researchers found that The odds ratio (with 95% CI) of developing psychological distress among respondents who consumed ≥5 cups of green tea/d was 0.80 (0.70, 0.91) compared with those who consumed <1 cup/d and concluded that Green tea consumption was inversely associated with psychological distress even after adjustment for possible confounding factors.

b. In the investigation of Green tea consumption and the risk of depressive symptoms of the study of "Green tea consumption is associated with depressive symptoms in the elderly" by Niu K, Hozawa A, Kuriyama S, Ebihara S, Guo H, Nakaya N, Ohmori-Matsuda K, Takahashi H, Masamune Y, Asada M, Sasaki S, Arai H, Awata S, Nagatomi R, Tsuji I.[20b], researchers found that the prevalence of mild and severe and severe depressive symptoms was 34.1% and 20.2%, respectively and concluded that a more frequent consumption of green tea was associated with a lower prevalence of depressive symptoms in the community-dwelling older population.

c. In the evaluation of the effects of (-)-Epigallocatechin gallate (green tea polyphenol) and acute stress responses of the study of "(-)-Epigallocatechin gallate attenuates acute stress responses through GABAergic system in the brain" by Adachi N, Tomonaga S, Tachibana T, Denbow DM, Furuse M., researchers found that EGCG on distress-induced vocalization were significantly attenuated by the GABAA receptor antagonist picrotoxin but not by the GABAB receptor antagonist CGP 54626 (3-N-(1-(3,4-dichlorophenyl)ethylamino)-2-hydroxypropyl cyclohexylmethyl phosphinic acid hydrochloride) and concluded that EGCG has sedative and hypnotic effects in the brain, partially through GABAA receptors, and consequently moderates an acute stress response.

d. Etc.


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Sources
[1] http://www.ncbi.nlm.nih.gov/pubmed/21664180
[21a] http://www.ajcn.org/content/90/5/1390
[21b] http://www.ncbi.nlm.nih.gov/pubmed/19828710
[21c] http://www.ncbi.nlm.nih.gov/pubmed/16457806

Organic Tava Tea Researches - The Ingredients of Green Sencha Health Benefits - External Anogenital Warts

Written by Chanel M. contributed by Kyle J. Norton, All right reserve

Sencha
is a type of decoct Japanese green tea, most popular tea in Japan, made from the dried tea leaves without grinding the tea leaves. It volatile compounds could be used as markers for the overall quality evaluation of all green teas, according to the study of "Predication of Japanese green tea (Sen-cha) ranking by volatile profiling using gas chromatography mass spectrometry and multivariate analysis" by Jumtee K, Komura H, Bamba T, Fukusaki E.[1].

Green Sencha Health Benefits
20. External Anogenital Warts
In the investigation of green tea catechins and external anogenital warts of the study of "Efficacy, safety and tolerability of green tea catechins in the treatment of external anogenital warts: a systematic review and meta-analysis" by Tzellos TG, Sardeli C, Lallas A, Papazisis G, Chourdakis M, Kouvelas D.[20], researchers found that the efficacy of Polyphenon 15% and 10%, at least for the primary endpoint, is clearly indicated. Polyphenon E treatment exhibits very low recurrence rates and appears to have a rather favourable safety and tolerability profile.

b. In the evaluation of Polyphenon E and external anogenital warts of the study of "Polyphenon E ( amixture of green tea catechins) a new treatment for external anogenital warts' by Tatti S, Stockfleth E, Beutner KR, Tawfik H, Elsasser U, Weyrauch P, Mescheder A.[20b], researchers found that severe local signs were more frequent but moderate in the active treatment groups (1.5%, 9.2% and 13.5% for G(Veh), G(10%) and G(15%) groups, respectively) and concluded that polyphenon E ointment is effective and well tolerated in the treatment of External genital warts(EGWs).

c. In the examination of the effect of Sinecatechins in treating external anogenital warts" of the study of 'Sinecatechins, a defined green tea extract, in the treatment of external anogenital warts: a randomized controlled trial" by Tatti S, Swinehart JM, Thielert C, Tawfik H, Mescheder A, Beutner KR.[20c], researchers found that sinecatechins ointment has exerted the partial clearance rates of at least 50% were reported for 78.4% and 74.0% of patients in the sinecatechins ointment.

d. In the evaluation of Green tea catechins and external genital warts of the study of "Green tea catechins for treatment of external genital warts" by Meltzer SM, Monk BJ, Tewari KS.[20d], researchers wrote that the mechanism of action, percent of wart clearance, time to clearance, and toxicity profile of green tea catechins are compared with those of podofilox and imiquimod, 2 other patient-administered topical agents approved for treatment of anogenital warts.

e. Etc.

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Sources
[1] http://www.ncbi.nlm.nih.gov/pubmed/21664180
[20a] http://www.ncbi.nlm.nih.gov/pubmed?term=Sinecatechin%20and%20anogenital%20warts
[20b] http://www.ncbi.nlm.nih.gov/pubmed/19709100
[20c] http://www.ncbi.nlm.nih.gov/pubmed/18515521
[20d] http://www.ncbi.nlm.nih.gov/pubmed/19019336

Organic Tava Tea Researches - The Ingredients of Green Sencha Health Benefits -Obstructive Sleep Apnea-Related Brain Deficits

Written by Chanel M. contributed by Kyle J. Norton, All right reserve

Sencha
is a type of decoct Japanese green tea, most popular tea in Japan, made from the dried tea leaves without grinding the tea leaves. It volatile compounds could be used as markers for the overall quality evaluation of all green teas, according to the study of "Predication of Japanese green tea (Sen-cha) ranking by volatile profiling using gas chromatography mass spectrometry and multivariate analysis" by Jumtee K, Komura H, Bamba T, Fukusaki E.[1].

Green Sencha Health Benefits
a. In the investigation of "Green Tea Compounds Beat OSA-Related Brain Deficits" by American Thoracic Society (ATS)[19a], researchers indicated that GTP-treated rats exposed to IH displayed significantly greater spatial bias for the previous hidden platform position, indicating that GTPs are capable of attenuating IH-induced spatial learning deficits," wrote Dr. Gozal, adding that GTPs "may represent a potential interventional strategy for patients" with sleep-disordered breathing.

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Sources
[1] http://www.ncbi.nlm.nih.gov/pubmed/21664180
[19a] http://www.newswise.com/articles/view/540745/

Organic Tava Tea Researches - The Ingredient of Green Sencha Health Benefits - Bad Breath

Written by Chanel M. contributed by Kyle J. Norton, All right reserve

Sencha
is a type of decoct Japanese green tea, most popular tea in Japan, made from the dried tea leaves without grinding the tea leaves. It volatile compounds could be used as markers for the overall quality evaluation of all green teas, according to the study of "Predication of Japanese green tea (Sen-cha) ranking by volatile profiling using gas chromatography mass spectrometry and multivariate analysis" by Jumtee K, Komura H, Bamba T, Fukusaki E.[1].

Green Sencha Health Benefits
13. Bad Breath
a. In the investigation of green tea extract on bad breath of the study of "The effect of green tea extract on the removal of sulfur-containing oral malodor volatiles in vitro and its potential application in chewing gum" by Zeng QC, Wu AZ, Pika J.[18a], researchers found that Adding 5% baking soda to green tea extract-containing chewing gum was found to buffer saliva pHs to 8.0 during 10 min of chewing. However, severe discoloration was observed and undesirable bitterness was perceived, most likely due to the polymerization of unencapsulated green tea polyphenols. Therefore, encapsulation of green tea extract is recommended for applications at elevated pHs.

b. In the evaluation of the effect of green tea and mouth air of the study of "Effect of green tea on volatile sulfur compounds in mouth air" by Lodhia P, Yaegaki K, Khakbaznejad A, Imai T, Sato T, Tanaka T, Murata T, Kamoda T.[19b], researchers wrote that green tea was very effective in reducing oral malodor temporarily because of its disinfectant and deodorant activities, whereas other foods were not effective.

c. Etc.


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Sources
[1] http://www.ncbi.nlm.nih.gov/pubmed/21664180
[18a] http://www.ncbi.nlm.nih.gov/pubmed/21383482
[18b] http://www.ncbi.nlm.nih.gov/pubmed/18388413

Organic Tava Tea Researches - The Ingredient of Green Sencha Health Benefits - Nervous Tension

Health Benefits of Green Sencha
17. Mental Alertness
a. In the evaluation of drinking green tea brings relaxation of the study of "L-theanine—a unique amino acid of green tea and its relaxation effect in humans" by Lekh Raj Juneja, Djong-Chi Chu, Tsutomu Okubo, Yukiko Nagato, Hidehiko Yokogoshi[17a], researchers found that L-theanine administered intraperitoneally to rats reached the brain within 30 min without any metabolic change. Theanine also acts as a neurotransmitter in the brain and decreased blood pressure significantly in hypertensive rats. In general, animals always generate very weak electric pulses on the surface of the brain, called brain waves.

b. In the investigation of L-Theanine found abundantly in green tea as anxiety Reducer of the study of "The acute effects of L-theanine in comparison with alprazolam on anticipatory anxiety in humans" by Lu K, Gray MA, Oliver C, Liley DT, Harrison BJ, Bartholomeusz CF, Phan KL, Nathan PJ.[17b], the write wrote that while L-theanine may have some relaxing effects under resting conditions, neither L-theanine not alprazolam demonstrate any acute anxiolytic effects under conditions of increased anxiety in the AA model.

c. In the investigation of L-theanine and its neuroprotective, mood-enhancing, and relaxation properties of the of the study of "L-theanine relieves positive, activation, and anxiety symptoms in patients with schizophrenia and schizoaffective disorder: an 8-week, randomized, double-blind, placebo-controlled, 2-center study" by Ritsner MS, Miodownik C, Ratner Y, Shleifer T, Mar M, Pintov L, Lerner V.[17c], researchers found that 40 patients completed the study protocol. Compared with placebo, L-theanine augmentation was associated with reduction of anxiety (P = .015; measured by the HARS scale) and positive (P = .009) and general psychopathology (P < .001) scores (measured by the PANSS 3-dimensional model).

d. Etc.


Recommend you to Visit Tavatea.com

Sources
[1] http://www.ncbi.nlm.nih.gov/pubmed/21664180
[17a] http://www.sciencedirect.com/science/article/pii/S0924224499000448
[17b] http://www.ncbi.nlm.nih.gov/pubmed/15378679
[17c] http://www.ncbi.nlm.nih.gov/pubmed/21208586

Organic Tava Tea Researches - The Ingredient of Green Sencha health Benefits - Gastrointestinal diseases

Written by Chanel M. contributed by Kyle J. Norton, All right reserve

Sencha
is a type of decoct Japanese green tea, most popular tea in Japan, made from the dried tea leaves without grinding the tea leaves. It volatile compounds could be used as markers for the overall quality evaluation of all green teas, according to the study of "Predication of Japanese green tea (Sen-cha) ranking by volatile profiling using gas chromatography mass spectrometry and multivariate analysis" by Jumtee K, Komura H, Bamba T, Fukusaki E.[1].

Health Benefits and green Sencha
16. Gastrointestinal diseases
a. In the evaluation of different doses of green tea extract and inflammatory bowel disease of the study of "Comparative evaluation of different doses of green tea extract alone and in combination with sulfasalazine in experimentally induced inflammatory bowel disease in rats" by Byrav DS, Medhi B, Vaiphei K, Chakrabarti A, Khanduja KL.[16a], researchers showed that green tea alone and in combination with sulfasalazine reduced inflammatory changes induced by tri nitro benzene sulfonic acid in rats.

b. In the examination of the role of polyphenols in gastrointestinal diseases of the study of "Polyphenols and gastrointestinal diseases" by Dryden GW, Song M, McClain C.[16b], researchers erote that Substantial in-vitro and animal studies support the beneficial effects of polyphenols in many gastrointestinal diseases. Well designed multicenter trials in humans, such as those called for in the 2005 National Institutes of Health Requests for Applications for Silymarin Centers, will be critical for defining the safety, appropriate dosing and therapeutic efficacy of such agents.

c. In the examination of flavonoid found a abundantly in green tea and intestinal neoplasia of the study of "Emerging role of bioflavonoids in gastroenterology: Especially their effects on intestinal neoplasia" by Hoensch HP, Oertel R.[16c], researchers found that Flavonoids can inhibit inflammatory pathways and could be useful for chronic inflammatory bowel diseases. Flavonoid deficiency syndromes could be therapeutic targets in the future.

d. In the evaluation of "(-)-epigallocatechin-3-gallate (EGCG), a green tea and gastrointestinal tract of the study of "Development of (-)-epigallocatechin-3-gallate (EGCG)-loaded enteric microparticles with intestinal mucoadhesive property" by Onoue S, Ochi M, Yamada S.[16d], researchers found that although significant improvement in chemical and metabolic stability of EGCG was observed in the EGCG/MS, possibly due to the controlled release and/or bioadhesion. From these findings, newly prepared EGCG/MS might be of clinical importance in both stabilizing and delivering EGCG for treatment of intestinal diseases.

e. Etc.

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Sources
[1] http://www.ncbi.nlm.nih.gov/pubmed/21664180
[16a] http://www.ncbi.nlm.nih.gov/pubmed/21082353
[16b] http://www.ncbi.nlm.nih.gov/pubmed/16462174
[16c] http://www.ncbi.nlm.nih.gov/pubmed/21603032
[16d] http://www.ncbi.nlm.nih.gov/pubmed/21419204

Organic Tava Tea Researches - The Ingredient of Green Sencha Health Benefits - Human immunodeficiency virus (HIV)

Written by Chanel M. contributed by Kyle J. Norton, All right reserve

Sencha
is a type of decoct Japanese green tea, most popular tea in Japan, made from the dried tea leaves without grinding the tea leaves. It volatile compounds could be used as markers for the overall quality evaluation of all green teas, according to the study of "Predication of Japanese green tea (Sen-cha) ranking by volatile profiling using gas chromatography mass spectrometry and multivariate analysis" by Jumtee K, Komura H, Bamba T, Fukusaki E.[1].

Health benefits of Green Sencha
15. Human immunodeficiency virus (HIV)
a. In the determination of Green Tea-EGCG effects in HIV-1of the study of 'Green Tea-EGCG reduces GFAP associated neuronal loss in HIV-1 Tat transgenic mice" by Rrapo E, Zhu Y, Tian J, Hou H, Smith A, Fernandez F, Tan J, Giunta B.[15a], researchers found that that EGCG (300mg/kg/day) dramatically reduced astrogliosis as demonstrated by GFAP expression. This was accompanied by a mild reduction in activated microglia by Iba-1 staining and significant reduction in neuronal loss through apoptosis as demonstrated by MAP2 staining and Western blot analysis respectively.

b. in examination of the effects of EGCG and HIV-1 proteins gp120 of the study of "EGCG mitigates neurotoxicity mediated by HIV-1 proteins gp120 and Tat in the presence of IFN-gamma: role of JAK/STAT1 signaling and implications for HIV-associated dementia" by Giunta B, Obregon D, Hou H, Zeng J, Sun N, Nikolic V, Ehrhart J, Shytle D, Fernandez F, Tan J.[15b], researchers found that EGCG treatment of primary neurons from normal mice reduced IFN-gamma-enhanced neurotoxicity of gp120 and Tat by inhibiting JAK/STAT1 pathway activation and found to mitigate the neurotoxic properties of HIV-1 proteins in the presence of IFN-gamma in vivo.

c. In the investigation of green tea polyphenol epigallocatechin-3-gallate counteractsSources and HIV infection of the study of "The main green tea polyphenol epigallocatechin-3-gallate counteracts semen-mediated enhancement of HIV infection" by Hauber I, Hohenberg H, Holstermann B, Hunstein W, Hauber J., researchers found that EGCG appears to be a promising supplement to antiretroviral microbicides to reduce sexual transmission of HIV-1.

d. In the assessment of green tea catechin, epigallocatechin gallate (EGCG) and HIV-1 glycoprotein 120 to the CD4 molecule on T cells of the study of "Preclinical development of the green tea catechin, epigallocatechin gallate, as an HIV-1 therapy' by Nance CL, Siwak EB[15d], Shearer WT. researchers found that by preventing the attachment of HIV-1-glycoprotein 120 to the CD4 molecule, EGCG inhibits HIV-1 infectivity. Because this inhibition can be achieved at physiologic concentrations, the natural anti-HIV agent EGCG is a candidate as an alternative therapy in HIV-1 therapy.

e. Etc.
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Sources
[1] http://www.ncbi.nlm.nih.gov/pubmed/21664180
[15a] http://www.ncbi.nlm.nih.gov/pubmed/19966940
[15b] http://www.mendeley.com/research/egcg-mitigates-neurotoxicity-mediated-hiv1-proteins-gp120-tat-presence-ifngamma-role-jakstat1-signaling-implications-hivassociated-dementia/
[15c] http://www.pnas.org/content/early/2009/05/15/0811827106
[15d] http://www.ncbi.nlm.nih.gov/pubmed/19203663