I-Tyrosine i-amino acid eyenziwa ngumzimba wakho kusuka ku-phenylalanine (enye uhlobo lwe-amino acid). Okunye okutholakala ekudleni okuningana (kufaka phakathi inyama, inhlanzi, amaqanda, ubisi, amaqanda, amantongomane, ama-legumes, nama-oats), i-tyrosine iyatholakala kwifomu lokuxhasana lokudla.
I-Tyrosine ibalulekile ekukhiqizeni komzimba wakho we-melanin (uhlobo lwe-pigment) kanye namakhemikhali ambalwa okucubungula ubuchopho (kubandakanya i-dopamine ne-norepinephrine).
Iphinde ibambe indima ebalulekile ekusebenzeni kwezingqungquthela ze-adrenal, thyroid, kanye ne-pituitary, ezibandakanya ekukhiqizeni nasekulawuleni ama-hormone akho.
Ukusetshenziswa kwe-Tyrosine
Enye yezinto ezivame kakhulu ukusetshenziswa kwe-tyrosine supplements yindlela yokwelashwa kwesifo sofuzo esibizwa ngokuthi phenylketonuria. Kubantu abane phenylketonuria, umzimba awukwazi ukucubungula i-phenylalanine kahle, ngenxa yalokho, awukwazi ukukhiqiza i-tyrosine idinga ukusebenza.
Eminye imithi, izithako ze-tyrosine zivame ukufakwa njengendlela yokwelapha yemvelo yezinkinga zezempilo, kuhlanganise:
- Isifo se-Alzheimer's
- Ukukhathazeka Kokungabi Nokonakala Kwemvelo
- Isifo sokuphelelwa yisikhathi esingapheli
- Ukucindezeleka
- Isifo senhliziyo
- Isifo sikaParkinson
- I-Premenstrual syndrome
- Ukucindezeleka
- Isibungu
Abanye abaxhasi bezokwelapha abathile bathi izidakamizwa ze-tyrosine nazo zingasiza ukuvimbela ukudla, ukukhuthaza ukulahlekelwa isisindo , ukwandisa ukuphazamiseka kwengqondo, ukuthuthukisa inkumbulo, nokuthuthukisa ukusebenza kwezemidlalo .
Izinzuzo zeTyrosine
Nakuba izifundo ezimbalwa kakhulu zihlolile imiphumela yokuthatha izithako ze-tyrosine, kunobunye ubufakazi bokuthi i-tyrosine inganikeza izinzuzo ezithile zezempilo. Nakhu ukubuka okutholakala okuyinhloko okuvela ocwaningweni olutholakalayo:
1) Phenylketonuria
Ngombiko oshicilelwe ku- Database Cochrane Yokuhlolwa Okuhlelekile ngo-2010, abaphenyi bahlaziya izivivinyo zokwelashwa ezitholakalayo ekusetshenzisweni kwe-supplementary tyrosine kubantu abane-phenylketonuria.
Ukubheka idatha kusuka ezinhlolweni eziyisithupha zomtholampilo kanye neziguli ezingama-56 ze-phenylketonuria, abalobi bombiko bathole ukuthi amazinga egazi we-tyrosine ayephakeme kakhulu kulabo ababambiqhaza abathola izithako ze-tyrosine (uma kuqhathaniswa nalabo abanikwa i-placebo). Kodwa-ke, abalobi bathi ukuhlolwa okwengeziwe kuyadingeka ngaphambi kokuba izithasiselo ze-tyrosine zinganconywa ukwelashwa kwe-phenylketonuria.
2) Umsebenzi weBongo
Ezinye izifundo zibonisa ukuthi ukusetshenziswa kwe-tyrosine supplements kungase kukhulise umsebenzi wobuchopho ngaphansi kwezimo ezithile. Isibonelo, isifundo se-2010 eshicilelwe kwi- Journal of the International Society of Sports Nutrition sitholwe ukuthi ukufakelwa kwe-tyrosine kwaholela ekuthuthukiseni okukhulu kakhulu ekugxilweni nasekuqapheleni emva kokuvivinya umzimba. Lolu cwaningo lwafaka abafundi abangu-19 abafundele ekolishi enempilo, ngamunye wabo owanikezwa nge-supplement tyrosine noma i-placebo yezinyanga ezine.
Ngaphezu kwalokho, isifundo se-2007 abantu abangu-19 (eshicilelwe ku- Physiology & Behavior ) sathola ukuthi ukusebenzisa izithasiselo ze-tyrosine kwasiza ekuvikeleni emiphumeleni eyingozi yokuchayeka okubandayo okukhulu ekusebenzeni kwengqondo nokukhumbula.
3) Ukusebenza kokuzivocavoca
Kuze kube manje, ukuhlola ukuhlola imiphumela ye-tyrosine ekusebenzeni komzimba kuye kwaveza imiphumela ehlanganisiwe.
Esifundweni sika-2011 esivela kuyi-European Journal of Applied Physiology , isibonelo, ukuvivinywa kwamavolontiya abesilisa abesilisa abayisishiyagalombili abathola ukuthi ukusetshenziswa kwesiphuzo esiphucukisiwe-tyrosine kwasiza ukwandisa ukukhuthazela ngenkathi kusetshenziselwa ukushisa. Kodwa-ke, isifundo se-2012 eshicilelwe kwi- International Journal of Sport Nutrition and Exercise Metabolism (ehlanganisa nabavolontiya abesilisa abangu-8) sathola ukuthi i-tyrosine supplementation ayihluleki ukuvikela ukukhathala ngenkathi ihlala endaweni efudumele.
Ucwaningo olwengeziwe luyadingeka ngaphambi kokuba izithasiselo ze-tyrosine zinganconywa ukuze kusetshenziswe umsebenzi wokuzivocavoca.
Amapulangwe
Njengoba kunokukhathazeka okuthile ukuthi i-tyrosine ingabangela izinhlungu zekhanda, abantu abajwayele ukuthinta imithi kufanele bagweme ukusebenzisa izithasiselo ze-tyrosine.
Ngaphezu kwalokho, izithako ze-tyrosine zingabangela imiphumela emibi njengokukhathala, ukushaya inhliziyo, kanye nokucabangela.
Kubalulekile ukukhumbula ukuthi ama-supplements awazange ahlolwe ukuphepha kanye nezondlo zokudla ngokuvamile azihambisani nomthetho. Kwezinye izimo, umkhiqizo ungase ulethe ukulinganisa okungafani nesilinganiso esicacisiwe semifino ngayinye. Kwezinye izimo, umkhiqizo ungangcoliswa nezinye izinto ezifana nezensimbi. Futhi, ukuphepha kwezidakamizwa kwabesifazane abakhulelwe, omama abahlengikazi, izingane, nalabo abanezimo zezokwelapha noma abaphuza imishanguzo azange zisungulwe.
Lapho Uzoyithola khona
Etholakala kakhulu ukuthengwa ku-intanethi, izithasiselo ze-tyrosine zingatholakala ezitolo eziningi zokudla zemvelo nasemasitolo ezikhethekile ezisekelweni zokudla.
Ukusebenzisa i-Tyrosine yezeMpilo
Ngenxa yocwaningo olulinganiselwe, kusheshe kakhulu ukutusa u-tyrosine nganoma yisiphi isimo. Kubalulekile futhi ukuqaphela ukuthi ukuzitholela isimo futhi ukugwema noma ukubambezela ukunakekelwa okujwayelekile kungaba nemiphumela emibi. Uma ucabangela ukusebenzisa i-tyrosine nganoma yimuphi umgomo wezempilo, qiniseka ukuthi ubonisane nodokotela wakho kuqala.
Imithombo
U-Hoffman JR, u-Ratamess NA, u-Gonzalez A, uBeller NA, u-Hoffman MW, u-Olson M, u-Purpura M, uJerger R. "Imiphumela yesikhwama se-CRAM esilula futhi esidelele ngesikhathi sokusabela kanye nezinyathelo ezizithobayo zokugxila nokuqapha kwabafundi abanekhono." J Int Soc Sports Nutriti. 2010 Dec 15; 7: 39.
Mahoney CR, Castellani J, Kramer FM, Young A, Lieberman HR. "Ukwengeza kweTyrosine kunciphisa ukukhunjulwa komsebenzi ngesikhathi sokushisa okubandayo." I-Physiol Behav. 2007, Nov 23; 92 (4): 575-82.
Ukukhubazeka L, Davison G, Beckmann M, Thatcher R. "I-tyraline ye-oral complementation yenza ngcono amandla okuzivocavoca ekushiseni." I-Eur J Appl Physiol. 2011 Dec; 111 (12): 2941-50.
Watson P, Enever S, Ikhasi A, Stockwell J, Maughan RJ. "I-Tyrosine supplementation ayithonya amandla okuzivocavoca isikhathi eside endaweni efudumele." I-Int J Sport Nutr Exerc Metab. 2012 Oct; 22 (5): 363-73.
I-Webster D, i-Wildgoose J. "I-Tyrosine yongezelela i-phenylketonuria." I-Cochrane Database Syst Rev. 2010 Aug 4; (8): CD001507.
Ukuziphendulela: Ulwazi oluqukethwe kule sayithi luhloswe ngezinjongo zemfundo kuphela futhi aluthathi iseluleko, ukuxilongwa noma ukwelashwa ngudokotela olayisensi. 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.