Kukhona okunye okukhazimulayo mayelana nokukhipha indebe yetiyi eluhlaza , futhi kungenzeka ukuthi yi-L-theanine. I-amino acid etholakale ngokweqile itiye elihlaza, uL-theanine kuthiwa kuncishisa ukukhathazeka, ngcono ukulala nokunciphisa ukucindezeleka.
Isebenzisa i-L-Theanine
Abagqugquzeli bathi uL-theanine angasiza ngezinkinga ezihlukahlukene zezempilo, njengokukhathazeka, ukucindezeleka, ukucindezelwa kwegazi eliphezulu, i-cholesterol ephakeme, ukulala nokushona.
L-theanine kuthiwa ukwandisa ukuhlushwa, ukugqugquzela ukulahlekelwa kwesisindo, nokuqinisa isimiso somzimba sokuzivikela. Ngaphezu kwalokho, abanye abaxhasayo basho ukuthi uL-theanine ingavimbela ukushaywa yisifo, isifo se-Alzheimer, kanye nezinye izinhlobo zomdlavuza.
Izinzuzo zikaL-Theanine
Kuze kube manje, ososayensi abasakaze bahlole kabanzi izinzuzo ze-L-theanine. Noma kunjalo, ucwaningo lokuqala luveza ukuthi lungasiza ukuphakamisa imizwelo, ukuthuthukisa umsebenzi wobuchopho, nokuzolalisa impendulo yomzimba ekucindezelekeni nasekukhathazeni. Nakhu ukubuka okunye okufundwayo okufundwayo:
1) Ukukhathazeka
L-theanine ingasiza ekunciphiseni ukukhathazeka, ngokwezifundo zango-2016. Abahlanganyeli abaphilile basebenzisa isiphuzo esine-200 mg L-theanine noma i-placebo. Ngehora elilodwa emva kokusetshenziswa, ukucindezeleka kokubhekana nokucindezeleka kwengqondo kwakuncishiswe kakhulu kulabo abadla isiphuzo se-L-theanine. Amahora amathathu emva kokusetshenziswa, i-cortisol yamathe (i-hormone eyimfihlo ekuphenduleni ukucindezeleka) yayisinciphile kakhulu.
Olunye ucwaningo lwahlola imiphumela yokusetshenziswa okuvamile kwe-L-theanine futhi lithola ukuthi ukungena kwansuku zonke kunciphise ukucindezeleka okuzithobayo kanye namanothi e-a-amylase (i-enzyme ekhishwe ekuphenduleni ukucindezeleka) kubafundi be-undergraduate abacindezelekayo.
2) Ukulala
Isifundo sokuqala sasihlola imiphumela yetiye ephansi e-caffeine ekhwalini lokulala (i-caffeine etizeni eluhlaza ingaphazamisa ubuthongo futhi ingayilwisana nomphumela we-theanine).
Ngemuva kokudla itiye ephansi e-caffeine nsuku zonke izinsuku eziyisikhombisa, amazinga e-alpha-amylase amathe amancane ayephansi kakhulu kulabo abaphuza itiye eliphansi elincane le-caffeine kunelabo abadla itiye elijwayelekile elihlaza. Ikhwalithi yokulala yayiphezulu kwalabo abaye badla inqwaba yetifi ephansi e-caffeine.
3) Ukucindezeleka
Ucwaningo lwe-2017 olushicilelwe ku- Acta Neuropsychiatrica luhlolisise ukusetshenziswa kwe-L-theanine ngokucindezeleka okukhulu. Leli cala lalihlanganisa amadoda nabesifazane abangu-20 ababenama-250 mg we-L-theanine abangene emithi yabo yamanje yamasonto ayisishiyagalombili. Bathola ukuthi kunezinzuzo eziningi ekunciphiseni ukukhathazeka, ukuphazamiseka kokulala, nokukhubazeka kwengqondo okuhambisana nokucindezeleka.
4) Umsebenzi wokuqonda
Ucwaningo lwango-2010 oluvela ku- Neuroscience Nutritional lubonisa ukuthi inhlanganisela ye-L-theanine ne-caffeine ingasiza ekuthuthukiseni ukusebenza kwengqondo.
Ukucwaninga, intsha engama-44 yathatha i-placebo noma inhlanganisela ye-L-theanine ne-caffeine ngaphambi kokwenza umsebenzi okhuni wokuqonda. Abacwaningi bathola ukuthi ukuhlanganiswa kwe-L-theanine ne-caffeine kwakuthuthukisa ngokucacile ukunemba nokuqapha. Kwasiza futhi ukwandisa ukugxila ngenkathi kwenziwa umsebenzi.
5) Ukulahlekelwa Isisindo
L-theanine ubonisa isithembiso njengesisindo sokulahlekelwa kwesisindo, ngokusho kocwaningo olususelwa esilwaneni eshicilelwe encwadini ethi In Vivo .
Esikhathini sokuhlolwa okubandakanya amagundane asetshenziselwa i-tea tea powder, abacwaningi bathola ukuthi i-L-theanine ne-caffeine etholakala ku-powder yabonakala ukuvimbela ukutholakala kwesisindo nokulwa namafutha.
Okuqhamuka uma udla imishanguzo
Kuze kube manje, kuncane okungaziwa ngokuphepha kokusebenzisa izithako ze-L-theanine esikhathini eside. I-i-theanine ngokuvamile ibhekwa njengephephile uma ithengwa itiye elihlaza, kodwa-ke, i-National Institutes of Health iyaxwayisa ngokuphuza izinkomishi ezingaphezu kukahlanu zetiyi nsuku zonke.
Ngenxa yokudla kwe-caffeine, ukusetshenziswa ngokweqile kwethi elihlaza kungabangela neminye imiphumela emibi. Lezi zingabandakanya ukuphathwa ikhanda, ukulala, ukuthukuthela, isifo sohudo, nokushaya inhliziyo.
Kukhona nokukhathazeka okuthile ukuthi ukuthatha i-L-theanine ngokubambisana nezidakamizwa, imishanguzo yokunciphisa i-lipid, kanye / noma izidakamizwa ezisetshenziswa ekhemotherapy zingenza imiphumela eyingozi.
Izithako zokudla azange zihlolwe ukuphepha. Ngenxa yokuthi ngokungahambisani nomthetho, okuqukethwe kwemikhiqizo ethile kungase kuhluke kulokho okushiwo kwilebula lomkhiqizo.
Futhi, khumbula ukuthi ukuphepha kwezidakamizwa kwabesifazane abakhulelwe, omama abahlengikazi, izingane, nalabo abanezimo zezokwelapha noma abaphuza imishanguzo ayisungulwa.
Ukuthola L-Theanine
Etholakala kakhulu ukuthengwa ku-intanethi, izithako ze-L-theanine zithengiswa ezitolo eziningi zemvelo nezitolo ezisezingeni eliphezulu ezisekelweni zokudla.
L-theanine itholakala nasetayini eluhlaza. Nakuba okuqukethwe kuhluka, indebe yetiyi iqukethe cishe 25 mg we-L-theanine.
Okubalulekile
Ngenkathi ukwandisa ukudla kwakho kwe-L-theanine ngokudla itiye elihlaza njalo kungasiza ekukhuliseni impilo yakho yonke, kusheshe kakhulu ukutusa izithako ze-L-theanine nganoma yisiphi isimo sezempilo.
Uma ucabangela ukusebenzisa izithako ze-L-theanine, khuluma nodokotela wakho kuqala. Ukwelapha isimo futhi ukugwema noma ukubambezela ukunakekelwa okujwayelekile kungaba nemiphumela emibi.
> Imithombo:
> Hidese S, Ota M, Wakabayashi C, et al. Imiphumela ye-chronic l-theanine yokuphathwa kweziguli ezinezinkinga ezinkulu zokucindezeleka: isifundo sokuvuleka kwelebula. Acta Neuropsychiatr. 2017 Apr; 29 (2): 72-79.
> Unno K, Tanida N, Ishii N, et al. Umphumela wokuvimbela ukucindezeleka we-theanine kubafundi ngesikhathi sokusebenza kwekhemisi: ukulungiswa okuhle phakathi komsebenzi we-α-amylase, ukucindezeleka nokucindezeleka okuzithobayo. I-Pharmacol i-Biochem Behav. 2013 Oct; 111: 128-35.
> Unno K, Noda S, Kawasaki Y, et al. Ukucindezeleka Okunciphise Nokuthuthukisa Ikhwalithi Yokulala Ebangelwa I-Green Tea Ehlanganiswe Nokuqukethwe Okunciphisisiwe Kwaffeine. Amakhemikhali. 2017 Jul 19; 9 (7).
> DJ White, de Klerk S, Woods W, Gondalia S, Noonan C, uScholey AB. Imithwalo Yokulwa Nokucindezeleka, Ukuziphatha Ne-Magnetoencephalography Imiphumela ye-L-Theanine-Based Based Nutrient Drink: A Randomized, Double-Blind, Placebo-Controled, Crossover Trial. Amakhemikhali. 2016 Jan 19; 8 (1).
> Ukuziphendulela: Ulwazi oluqukethwe kule sayithi luhloswe ngezinjongo zemfundo kuphela futhi aluthathi iseluleko, ukuxilongwa noma ukwelashwa ngudokotela ovunyelwe. Akuhloselwe ukumboza zonke izinyathelo zokuqapha, ukusebenzisana kwezidakamizwa, izimo noma imiphumela emibi. Kufanele ufune ukunakekelwa okusheshayo kwezokwelapha kunoma yiziphi izinkinga zezempilo bese uthintana nodokotela wakho ngaphambi kokusebenzisa enye imithi noma wenze ushintsho ohlelweni lwakho.