Zinātnieki pirmo reizi ir pierādījuši Matcha tējas pulvera un ekstrakta ietekmi uz trauksmes mazināšanu dzīvnieku modelī. Matcha ir droša, dabiska alternatīva trauksmes mazināšanai un garastāvokļa paaugstināšanai.
Garastāvoklis un nemiers disorders are becoming commonplace in our fast-paced and often stressful lives. nemiers disorders and fear has been linked to disturbance in dopaminergic and serotonergic systems in our brain. nemiers symptoms also increases risk of other medical disorders and affects overall wellbeing of a person. Anxiolytic (or antianxiety) agents like benzodiazepines and serotonin inhibitors are generally used for treatment as they reduce or inhibit nemiers. However, they have many side effects, sometimes even adverse, and they also increase dependency. Safer, natural alternative need to be developed for nemiers Vadība.
In Japan, ‘Matcha’ has been used since a long time for different medicinal purposes. Matcha is a finely grounded power of new leaves from tree plant called Camellia sinensis kam atļauts augt tikai ēnā. Pagatavošanai izmanto Matcha pulveri Matcha tēja by adding it directly to hot water. It is also used for adding flavour to food. Matcha tēja is different from regular green tea in its content mainly because of differences cultivation and processing. Camellia sinensis augs ir bagāts ar L-teanīnu, epigallokatehīna gallātu (EGCG), kofeīnu, vitamīniem un aminoskābēm, un tādējādi Matcha lietošana nodrošina vairākas priekšrocības, kas saistītas ar šīm bioaktīvajām vielām. Japānā to parasti izmanto dziedināšanai, relaksācijai un pat ādas slimību ārstēšanai. Tomēr ir pieejami ļoti ierobežoti zinātniski pierādījumi, kas apstiprina iepriekš minētos apgalvojumus. Arī Matcha pulvera ietekme uz uzvedības aspektiem līdz šim nav pētīta.
Pētījums publicēts Journal of Functional Foods has investigated and demonstrated the effects of Matcha tēja powder, hot water extract and ethanol extract for pret trauksmi activity in an animal model (here, mice). Researchers conducted an elevated plus maze (EPM) test in healthy animals. EPM involves use of an elevated plus-shaped platform which has two open arms and two closed arms with walls around it. It is a commonly used anxiety test in which animal subjects which are anxious try to stay on the safe area of the plus where they cannot fall off.
The animals were orally administered Matcha powder and extract or fractions dissolved in water. Results showed that the animals who had consumed Matcha had reduced nemiers. The strongest effect was seen in Matcha extract derived using 80% ethanol when compared to extract derived from hot water. This meant that poor water-solubility of Matcha has better pret trauksmi effect than when it was easily water soluble. The ethanol extract was fractioned further into hexane soluble, ethyl acetate soluble and water-soluble fractions which exhibited similar results. Behavioural analysis showed that Matcha power and extract reduce nemiers by activating dopamine D1 and serotonin 5-HT1A receptors which are closely linked to anxious behaviour.
The current study conducted on mice demonstrates that Matcha tēja powder and extract have a positive calming effect and reduce anxiety by activating dopaminergic and serotonergic systems in the brain. Matcha is a safe and natural alternative for alleviating anxiety.
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Avots (-i)
Kurauchi, Y. et al. 2019. Anxiolytic activities of Matcha tēja powder, extracts, and fractions in mice: Contribution of dopamine D1 receptor- and serotonin 5-HT1A receptor-mediated mechanisms. Journal of Functional Foods. https://doi.org/10.1016/j.jff.2019.05.046
