Can someone help me understand the BAT aspect of green tea (fonz please =)

[Frackal]

Does green tea ONLY expend calories through brown adipose tissue, and if so, what does this mean in terms of real-world results? (ie, only areas containing BAT will show fatloss)


Or, is there more to its actions?



=)

 

[jboldman]

Int J Obes Relat Metab Disord. 2000 Feb;24(2):252-8. Related Articles, Links


Green tea and thermogenesis: interactions between catechin-polyphenols, caffeine and sympathetic activity.

Dulloo AG, Seydoux J, Girardier L, Chantre P, Vandermander J.

Institute of Physiology, University of Fribourg, Fribourg, Switzerland. [email protected]

The thermogenic effect of tea is generally attributed to its caffeine content. We report here that a green tea extract stimulates brown adipose tissue thermogenesis to an extent which is much greater than can be attributed to its caffeine content per se, and that its thermogenic properties could reside primarily in an interaction between its high content in catechin-polyphenols and caffeine with sympathetically released noradrenaline (NA). Since catechin-polyphenols are known to be capable of inhibiting catechol-O-methyl-transferase (the enzyme that degrades NA), and caffeine to inhibit trancellular phosphodiesterases (enzymes that break down NA-induced cAMP), it is proposed that the green tea extract, via its catechin-polyphenols and caffeine, is effective in stimulating thermogenesis by relieving inhibition at different control points along the NA-cAMP axis. Such a synergistic interaction between catechin-polyphenols and caffeine to augment and prolong sympathetic stimulation of thermogenesis could be of value in assisting the management of obesity. International Journal of Obesity (2000) 24, 252-258

 

[Frackal]

Awesome thanks. It looks like from that abstract that there may be a real synergism with green tea and ephedra... both becuase of the caffiene content and catechins.