Imizimba yethu ine-hormones elawula zonke iinkalo ze-metabolism, kwaye iquka ukutya kunye nesisindo somthetho. Kufunyenwe amahomoni amaninzi achaphazela ukuphuhliswa kokunyanya ; enye yale ghrelin.
Yintoni iGhrelin?
Ngokucacileyo, i-ghrelin iyimodemoni ekhuthaza umdla. Ngako oko, nantoni na eyongeza amazinga e-ghrelin iya kwandisa ukondla, kwaye oku kunokukhokelela ekuzuzeni ubunzima kunye nokukhuluphala.
I-Ghrelin ikhiqizwa ikakhulu ngesisu kunye ne- duodenum . Kufunyenwe ukuba kudlalwa indima kwinto eyaziwa ngokuba yindlala yesikhathi sokudla, kunye nokulawulwa kokufumana ubunzima kunye nokulahleka ngexesha elide.
I-Ghrelin ngamanye amaxesha icingelwa njengomlingani we-leptin ngenxa yokuba i- leptin (enye ihomoni ye-appetite, eveliswa yi-adipose tissue) igxothisa inqweno njengoko amanqanaba ayo akhula.
Xa abaphandi befumanisa ukuba ukufaka i-ghrelin kwiigundane kubakhuthaza ukuba bakondle kwaye ngokwenene bavelise ukukhuluphala kwezi ngongoma, inzala yakhula ekuchazeni ukuba i-ghrelin ingayidlala njani ebhubheni lokukhuluphala ebantwini.
Yintoni eyandisa iGhrelin?
Abaphandi baye bafumanisa iindlela zokuziphatha kunye nezinto ezinokunyusa okanye ukunciphisa amanqanaba e-ghrelin emzimbeni. Ukuziphatha okunye okwandisa amazinga e-ghrelin akufumani ukulala ngokwaneleyo . Ngaphezulu kwexesha elide, ukufumana ngaphantsi kweeyure ezisixhenxe ukuya kwezi-9 zokulala ngokungaphazamiseki rhoqo kunokukhokelela ekwandeni kwamanqanaba e-ghrelin-eguqulela kwisidlo esikhulu, ukongeza kweekhalori kunye nokuzuza ubunzima.
Ngokwahlukileyo, ukulala ngokwaneleyo ubusuku bonke kunciphisa i-ghrelin, kwaye ngoko kunciphisa ukutya. Njengoko kuvela, kukho isizathu sezinto eziphilayo zokubambalala-"eziphakathi kwamabhinki emini," emva koko!
Kwi-frontary dietary, ukutya kwe-carbohydrate ecocekileyo kakhulu, ngokukodwa ekungabikho kwiprotheni eyaneleyo kunye ne-fiber, kunokunyusa amazinga e-ghrelin, ngenxa yeprotheni kunye nefiber ephezulu enokunciphisa amanqanaba e-ghrelin ukuya kwimeko apho ubomi bomntu bufumana uphawu lokuba umzimba udlile ngokwaneleyo kwaye uxelela umzimba, ngesondlo esinelisekile, ukuba kulungile ukuyeka ukutya.
Yingakho abaninzi banokufumana ukutya kwipatato emva kwipatato okanye isonka esikhulu esimhlophe ngaphandle kokuvakalelwa ngokupheleleyo-ukutya okunjalo akuqukethe iprotheni okanye i-fiber eyaneleyo yokucima izibonakaliso ze-ghrelin kwingqondo.
Ngamanye amagama, ngokutya kwe-carbohydrate ecocekileyo, ngenxa yokuba ingqondo ayifumananga uphawu lokuba umzimba ufumene izondlo eziyimfuneko, ivumela umzimba ukuba udle, ngokutya okunelisekile. Ngokuqhelekileyo, amanqanaba e-ghrelin kufuneka anyuke ngaphambi kokutya kwesidlo (ukukwazisa ukuba lixesha lokutya), kwaye unciphise emva kwesidlo sakusihlwa. Nangona kunjalo, ukusetyenziswa kwee-carbohydrates ecocekileyo, njengoko kuphawuliwe ngasentla, kunokuphazamisa ukuhamba okuqhelekileyo.
Yintoni eyanciphisa iGhrelin?
Njengoko kunokuhlawulelwa kwingxoxo ngoku, iziphatho eziqhelekileyo ezinxulumene nokuphila ngendlela enempilo kunye nokutya okunempilo kunokugcina amazinga e-ghrelin ekukhangela. Ezi ziquka ukutya iziqhamo kunye nemifuno kunye nezinye zokutya eziphezulu (njengeziqhamo ezipheleleyo); ukutya ukutya okunokutya okunzulu (njengezityalo kunye nemifuno, kunye nokutya okunika amaprotheni apheleleyo); kunye nokulala ngokwaneleyo. Iziphumo ziyahambelani ngokubhekiselele nokuba ngaba ukuhlinzwa okwenziwe ngesantya kunokwenyuka kwe-ghrelin.
Imithombo:
I-Cummings DE, i-Weigle DS, i-Frayo RS, i-Breen PA, kunye ne-al. Amazinga e-Plasma ghrelin emva kokulahlekelwa kwesisindo sokutya okanye ukuhlinzwa kwesisu esiswini. N Engl J Med 2002; 346: 1623-1630.
Klok MD, Jakobsdottir S, iDrent ML. Indima ye-leptin kunye ne-ghrelin kumgaqo wokutya nokutya komzimba kubantu: ukuhlaziywa. I-Revous 2007; 8: 21-34.
I-Tschop M, uSmiley DL, i-Heiman ML. I-Ghrelin inciphisa ukungahambisani namagundane. Uhlobo 2000; 407: 908-913.
Mozaffarian D, Hao T, Rimm EB, Willett WC, et al. Utshintsho kwindlela yokutya kunye nendlela yokuphila nokufumana ubunzima bexesha elide kubafazi kunye namadoda. N Engl J Med 2011; 364: 2392-2404.