I-Adenosine yikhemikhali ebalulekile eyaziwa ngokuthi i-nucleoside ekhona ngokwemvelo kuwo wonke amaseli omzimba. Isetshenziselwa ukudlulisa amandla ngaphakathi kwamaseli ngokudala ama-molecule njenge-adenosine triphosphate (ATP) ne-adenosine diphosphate (ADP), futhi futhi ingenye yezithunywa zamakhemikhali, noma izinzwa ze-neurotransmitters, ngaphakathi kwengqondo. Ngaphezu kweminye imisebenzi ehlukahlukene, i-adenosine itholakale ukuthi i-painkiller yemvelo ephumelelayo, ikhulisa imithwalo yegazi, kanye nokusiza ukulawula isigqi senhliziyo.
Umzimba Wenza I-Adenosine?
I-adenosine yenziwa ngokwemvelo ngaphakathi emzimbeni kusukela ku-adenine, i-nitrogen-based substance, ne-ribose, ushukela. Ngaphandle kokuba yi-neurotransmitter, i-adenosine ihlukaniswa njengendlela yamakhemikhali eyaziwa ngokuthi i-xanthine. Wonke amangqamuzana emzimbeni aqukethe i-adenosine equkethwe ngaphakathi kwe-DNA ne-RNA.
I-Adenosine Ithinta Kanjani Ukulala?
I-Adenosine inomsebenzi obalulekile ezinkambisweni eziningi zezinto eziphilayo futhi ingenye yezinzwa eziningi ze-neurotransmitters kanye neuromodulators ezithinta ukuziphatha okuyinkimbinkimbi kokulala, ikakhulukazi ukuqala kokulala. Esikhathini sobuchopho, i-neurotransmitter engavimbeleki, okusho ukuthi isebenza njengendlela yokucindezeleka yesimiso esiyisisekelo futhi ivimbela izinqubo eziningi ezihlobene nokuvuka. Nakuba amazinga e-adenosine ephapheme ebuchosheni aphakama ngehora ngalinye ngakho-ke ukholelwa ukuthi unesibopho sokwanda kwamazinga okulala okuthuthukisa isikhathi eside umuntu ehlala ephapheme.
Ngesikhathi sokuvuka, amazinga e-adenosine akhula kancane kancane ezindaweni zobuchopho ezibalulekile ekukhuthazeni ukuvusa , ikakhulukazi uhlelo olusebenzayo olusebenzayo ku-brainstem. Ngezingqondo eziphakeme futhi eziphakeme, i-adenosine ivimbela ukuvusa futhi ibangele ukulala. Khona-ke, amazinga e-adenosine ayancipha ngesikhathi sokulala. Ngakho-ke, ososayensi baye baqeda isikhathi eside ukuthi amazinga aphezulu e-adenosine empeleni abangela ukulala.
Eqinisweni, i-caffeine etholakala ekhofi, itiye kanye nezinye iziphuzo ze-caffeinated, i-xanthine chemicals efana ne-adenosine futhi isebenza ukuvimbela ubuthongo ngokuvimbela isenzo se-adenosine ngaphakathi kwengqondo, okwenza kube nokuvuka. Ngamanye amazwi, uma uphuza i-caffeine, iphumelela imiphumela yayo evuselelayo ngokuvimbela ukucubungula kwe-adenosine yakho ebuchosheni.
Izigaba zokulala
Ngesikhathi umuntu elele, ubuchopho bakhe buyaqhubeka phakathi kwezigaba ezihlukahlukene zokulala . Izigaba ezahlukene zokulala zikhonza izinhloso ezihlukene zokuphumula nokuvuselelwa. Isiteji sokulala 1 sibonakala ukuhlupheka ukuvusa kalula; ngesikhathi sokulala kwesigaba 2, amagagasi obuchopho aqala ukuphumula futhi ukunyakaza kwamehlo kuyaphela; Abantu abasesiteji sokulala 3 babonisa ukuqala kwamagagasi ochopho kakhulu kakhulu; esiteji 4, amavolumu obuchopho obuchopho kakhulu kakhulu; ngesikhathi sesigaba sesi-5, eyaziwa nangokuthi ubuthongo be-REM , amaphupho ayenzekayo, izitho zikhubazekile okwesikhashana, amehlo agxila ngokushesha, futhi ukuphefumula kuyaba okuncane futhi okungaqondakali.
Izinga le-adenosine metabolism libonakala liphazamise ngokuqondile noma linqume ikhwalithi yokulala okujulile, abacwaningi bathole, kanye nokukhubazeka komuntu ukulala ekulaleni.
Imithombo:
University of McGill. "Ubuchopho Obusuka Phezulu Kuya Enhla"
I-Division of Sleep Medicine e- Harvard Medical School. "IDrayivu Yokulala Newashi Yethu Langaphakathi"