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Suntheanine®


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#1 doug123

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Posted 18 July 2006 - 06:53 AM


NutriScience Innovations has the patent on L-theanine; and has a volume of data to substantiate the use of that product; they own the registered trademark name Suntheanine®. That product is manufactured in Japan by Taiyo Kagaku Co., Ltd; Japanese imports aren't viewed quite the same as some Chinese imports due to the strict regulation of these products (Similar to European countries). NutriScience Innovations, LLC. is the exclusive distributor of Suntheanine® for Taiyo International, Inc.

L-theanine has won a couple awards of distinction:

~ Food Ingredients Award - 1998 ~
~ Best New Product - Nutracon 2000 ~

I like the shot of the woman they use to promote use of the product. She looks totally serene. Does anyone take this product and is anyone interested in it?

Click here to view the Suntheanine booklet (it's cool!)

Posted Image

Their claims are:
-Promote Relaxation
-Reduce Caffeine's Negative Effects
-Alleviate PMS Symptoms in Women
-Reduce Stress & Anxiety
(in Humans and Pets)
-Improve Learning Ability

The studies they use to back their claims are:

From http://www.l-theanine.com/research.htm


Complete copies of the following scientific and dietary research available upon request from NutriScience Innovations, LLC.


Sugiyama T. Sadzuka Y. Tanaka K. Sonobe T.
Inhibition of glutamate transporter by theanine enhances the therapeutic efficacy of doxorubicin.
Toxicol Lett 2001 Apr 30;121(2):89-96



Kakuda, T. et al.
Neuroprotection of gamma-glutamylethylamide (theanine) in middle cerebral artery occlusion in the rat. Society for Neuroscience Abstracts. Vol. 26, No. 1-2, 2000 pp 183.19.



Sadzuka Y., Sugiyama T., Sonobe T.
Improvement of idarubicin induced antitumor activity and bone marrow suppression by theanine, a component of tea. Cancer Lett 2000 Oct 1;158(2):119-124



Kakuda, T. et al.
Protective effect of gamma-glutamylethylamide (theanine) on ischemic delayed neuronal death in gerbils. Neuroscience Letters. Vol.289, No. 3, August 11, 2000. Pp 189-192



Yokogoshi H, et al.
Effect of Theanine, r-glutamylethylamide, on Brain Monoamines, striatal dopamine release and some kinds of behavior in rats. Nutrition 2000, Sep; 16(9):776-777



Kakuda, T. et al.
Inhibiting effects of theanine on caffeine stimulation evaluated by EEG in the rat.
Biosci Biotechnol Biochem 2000 Feb;64(2):287-93



Sugiyama T. et al.
Liver injury-preventative effect of tea theanine in rats.
Journal of Food Science. Jan.-Feb. 2000. Vol.65, No. 1, p. 30-33



Sadzuka Y. et al.
Efficacies of tea components on doxorubicin induced antitumor activity and reversal of multi-drug resistance. Toxical Lett. 2000 Apr 3;114(1-3):155-62



Sugiyama T. et al.
Theanine, a major amino acid of green tea, enhances anitumor activity of doxorubicin via inhibition of glutamate transsporter. Proceedings of the Association for Research Annual. March 2000. No 41, p. 242



Juneja L, et al.
L-theanine - A unique amino acid of green tea and its relaxation effect in humans.
Trends in food science technology June/July 1999. v. 10(6/7) p. 199-204



Sugiyama T.
Membrane transport and antitumor activity of pirarubicin, and comparison with those of doxorubicin. Jpn J Cancer Res. 1999 Jul;90(7):775-80.



Bukowski JF, et al.
Human gamma delta T cells recognize alkylamines derived from microbes, edible plants, and tea: implications for innate immunity. Immunity. 1999 Jul;11(1):57-65.



Unno T, et al.
Protective effect of theanine, on ischemic neuronal death in transient forebrain ischemia model. Society for Neuroscience Abstracts. 1999, Vol. 25, No. 1-2, p. 575.



Unno T, et al.
Metabolism of theanine, small gamma-glutamylethylamide, in rats.
Journal of Agricultural and Food Chemistry. April 1999, Vol. 47, No. 4 p. 1593-1596.



Sugiyama T, et al.
Theanine, a major amino acid in green tea, inhibits severe leukopenia and enhances antitumor activity induced by idarubicin. Proc. American Assoc. Cancer Research. 40. March 1999



Terashima T, et al.
Time-dependent changes of amino acids in the serum, liver, brain and urine of rats administered with theanine. Biosci Biotechnol Biochem. 1999 Apr;63(4):615-618.



Sugiyama T, et al.
Combination of theanine with doxorubicin inhibits hepatic metastasis of M5076 ovarian sarcoma. Clin Cancer Res. 1999 Feb;5(2):413-6.



Sugiyama T, et al.
Enhancing effects of green tea components on the antitumor activity of adriamycin against M5076 ovarian sarcoma. Cancer Lett. 1998 Nov 13;133(1):19-26



Sugiyama T, et al.
Green tea component, theanine enhances the antitumor activity of adriamycin against sensitive P388 leukemia and resistant P388-ADR. Proceedings of the American Association for Cancer Research Annual Meeting. 1998, Vol. 39, p. 528.



Yokogoshi H, et al.
Theanine-induced reduction of brain serotonin concentration in rats.
Biosci Biotechnol Biochem. 1998 Apr;62(4):816-7.



Kobayashi A, et al.
Effects of L-theanine on the release of a-waves in human volunteers.
Nippon Nogeikagaku Kaishi. 1998 Vol. 72, 153-157.



Nozawa, A. et al.
Theanine, a major flavorous amino acid in green tea leaves, inhibits glutamate-induced neurotoxicity on cultured rat cerebral corticalneurons. Society for Neuroscience Abstracts. 1998, Vol. 24, No. 1-2, p. 978.



Saduka Y, et al.
Modulation of cancer chemotherapy by green tea.
Clin Cancer Res. 1998 Jan;4(1):153-6



Yokogoshi H, et al.
Effect of theanine, r-glutamylethylamide, on brain monamines and striatal dopamine release in conscious rats. Neurochem Res. 1998 May;23(5):667-73.



Yokogoshi H, et al.
Hypotensive effect of gamma-glutamylethylamide in spontaneously hypertensive rats.
Life Sci. 1998;62(12):1065-8



Yokozawa T, et al.
Influence of green tea and its three major components upon low-density lipoprotein oxidation.
Exo, Toxicol Pathol. 1997 Dec;49(5):329-35.



Yokozawa T, et al.
Inhibitory effect of green tea on injury to a cultured renal epithelial cell line, LLC-PK1.
Biosci Biotechnol Biochem. 1997 Jan;61(1):204-6



Yagyu T, et al.
Chewing-gum flavor affects measures of global complexity of multichannel EEG.
Neuropsychobiology. 1997;35(1):46-50



Kitaoka S, et al.
Transmural potential changes associated with the in vitro absorption of theanine in the guinea pig intestine. Biosci Biotechnol Biochem. 1996 Nov;60(11):1768-71.



Sadzuka Y, et al.
The effects of theanine, as a novel biochemical modulator, on the antitumor activity of adriamycin.
Cancer Lett. 1996 Aug 2;105(2):203-9.



Yokozawa T, et al.
Effects of a component of green tea on the proliferation of vascular smooth muscle cells.
Biosci Biotechnol Biochem. 1995 Nov;59(11):2134-6.



Yokogoshi H, et al.
Reduction effect of theanine on blood pressure and brain 5-hydroxyindoles in spontaneoulsy hypertensive rats. Biosci Biotechnol Biochem. 1995 Apr;59(4):615-8



Nozawa, A. et al.
Theanine a glutamate analog, stimulates NMDA-receptors by suppresses excitatory effect of caffeine in cortical neurons. Society for Neuroscience Abstracts. 1995, Vol. 21, No. 1-3, p. 835.



Graham HN.
Green tea composition, consumption, and polyphenol chemistry.
Prev Med. 1992 May;21(3):334-50.



Sagesaka Y, et al.
Pharmacological effect of theanine.
Proceedings of the International Symposium on Tea Science, August 26-29, 1991, 362-364.



Tsushida, T.
Metabolism of L-theanine in tea leaves.
JARQ (Japan Agricultural Research Quarterly.) 1987, Vol. 21, No. 1 p.42-46.



Feldheim, W. et al.
Investigation of the presence and significance of theanine in the tea plant.
Journal of the Science of Food and Agriculture. 1986, Vol. 37, No 6, p. 527-534



Kimura R, et al.
Effect of theanine on norepinephrine and serotonin levels in rat brain.
Chem Pharm Bull (Tokyo). 1986 Jul;34(7):3053-7.



Neumann, K.
Quantitive determination of theanine in tea extracts.
Deutsche Lebensmittel-Rundschau. 1982 May. v. 78(5) p. 172-174.



Oda Y, et al.
Synthesis and antibacterial activities of theanine-containing oligopeptides..
Chem Pharm Bull (Tokyo). 1980 Dec;28(12):3549-54.



Kimura R, et al.
Influence of alkylamides of glutamic acid and related compounds on the central nervous system. IV. Effect of theanine on adenosine 3’, 5’-monophosphate formation in rat cerebral cortex. Chem Pharm Bull (Tokyo). 1980 Feb; 28(2):664-6.



Shinozaki H, et al.
Theanine as a glutamic antagonist at a crayfish neuromuscular junction.
Brain Res. 1978 Jul 28;151(1):215-9.



Kimura R, et al.
Influence of alkylamides of glutamic acid and related compounds on the central nervous system. III. Effect of theanine on spontaneous activity of mice. Yakugaku Zasshi. 1975 Jul; 95(7):892-5. Japanese.



Kimura R, et al.
Influence of alkylamides of glutamic acid and related compounds on the central nervous system. II. Synthesis of Amides of Glutamic Acid and Related Compounds, and their Effects on the Central Nervous System. Chem Pharm Bull (Tokyo). 1971 Vol. 19 No. 7, 1301-1307.



Kimura R, et al.
Influence of alkylamides of glutamic acid and related compounds on the central nervous system. I. Central depressant effect of theanine. Chem Pharm Bull (Tokyo). 1971 Jun;19(6):1257-61.

Edited by nootropikamil, 18 July 2006 - 07:13 AM.





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