Abantu abathathu kwabayisishiyagalombili abakha isifo sikaParkinson (PD), lesi sifo siqala ngokuthuthumela noma ukuthuthumela kwesinye sezandla. Kungabonakala nezinyawo, ubuso, noma umhlathi kodwa ngokuvamile, kubonakala kwesinye sezandla. Lokhu kuthuthumela kwenzeka lapho imisipha yezandla ikhululekile futhi iphumule. Ngakho igama: ukuphumula ukuthuthumela.
Intukuthelo inekhwalithi ye-'Pill-Rolling '
Ukuthuthumela ngokuvamile kubonakala sengathi ugibela ugwayi, uhlamvu lwemali noma iphilisi phakathi kwesithupha sakho nesinxele somunwe.
Yingakho ibizwa ngokuthi "ukugwedla kwamaphilisi".
Yini Ebangela Ukuthuka?
Ososayensi abakakaxazululanga imfihlakalo yalokho okubangela ukuthuthumela kodwa banezincazelo ezithile ezinhle.
- Esinye sezimbangela eziyinhloko zesifo sikaParkinson ukulahlekelwa yi- dopamine ezindaweni eziphathelene nobuchopho obusekela ukunyakaza.
- Lezi zindawo zobuchopho ezihlobene nokunyakaza zihlelwe zibe izifunda ezenziwe ngokukhethekile ekukhiqizeni izinhlobo ezihlukahlukene zokunyakaza.
- Elinye lalezi zifunda lihilela isifunda somqondo wengqondo esibizwa ngokuthi i-thalamus.
- I-thalamus iyasiza ukulawula ukunyakaza ngokudlulisela ulwazi lwezinzwa mayelana nokunyakaza kusuka izinzwa kuze kufike ebuchosheni. Ubuchopho busebenzisa lokhu "impendulo yokuzwa" kusukela ku-thalamus ukulawula ukunyakaza okuyinkimbinkimbi.
- Ukulahlekelwa kwe-dopamine esifundeni sobuchopho esiqukethe i-thalamus kuphazamisa ukusebenza kwe-thalamus.
- Ucwaningo oluningi luye lwabonisa ukuthi ukuwa kwamazinga amaningi e-dopamine esifundeni se-thalamic kuqala iminyaka ngaphambi kokuqala kokuthuthumela nokudabuka kwe-PD.
- Lapho amazinga e-dopamine afinyelela ezingeni eliphansi kakhulu, i-thalamus ilahlekelwa ukufaka kwayo okujwayelekile nokulawula ukuthuthumela.
Uma ubuchopho bengenakukwazi ukuthola impendulo enembile mayelana nokuthi ukunyakaza kahle kuqhubeka kanjani, ngeke kusakwazi ukulungisa ukunyakaza okubi noma ukulungisa ukunyakaza okuncane nokunye okunye.
Izinyathelo eziyinkimbinkimbi kunazo zonke, njengokunyakaza kweminwe nezandla, yizo zokuqala ezithintekayo, futhi ezithinteka kakhulu.
Indlela yokwelashwa engcono kakhulu yokuphumula ukusabalala namanje i-dopamine yokwelashwa esikhundleni.
Imithombo:
> I-National Institute of Neurological Disorder and Stroke. "Izifo ZasePasinson: Ithemba Ngokucwaninga." http://www.ninds.nih.gov/disorders/parkinsons_disease/detail_parkinsons_disease.htm
> R. Pahwa kanye no-KE Lyons (Abahleli), I- Handbook yezifo zikaPasinson ; I-4th Edition, eNew York, Abashicileli bezeMpilo e-Informa, ka-2007.