Phytosterols, oo sidoo kale loo yaqaan sterols dhirta, ayaa helay dareen badan oo ay sabab u tahay faa'iidadooda caafimaad ee wadnaha. Caadi ahaan cuntooyinka dabiiciga ah, sida midhaha, miro, iyo khudaarta, phytosterols ayaa sidoo kale laga heli karaa foomka dheeraadka ah ee dukaanka caafimaadka ama farmashiyaha.
Daraasaduhu waxay ogaadeen in isticmaalka maalin kasta ee meel kasta oo u dhaxaysa 1.6 iyo 3 garaam oo ah phytosterols ay hoos u dhigi karaan kolestaroolkaaga LDL meel kasta oo u dhaxaysa 4 ilaa 15%.
Si kastaba ha ahaatee, kolestaroolka HDL iyo triglycerides uma muuqdaan kuwo si weyn u saameeya isticmaalka phytosterols. Inkasta oo habka LDL ee kolesteroolka loo yareeyo phytosterols aan si dhammaystiran loo garanayn, waxaa jira daraasado lagu baaray sida ay phytosterols ugu saameyn karto heerarka LDL ee kolesteroolka.
LDL-Miisaanka hoos u dhaca ma cadda
Caadi ahaan, kolestarool-labadaba cuntadaada iyo beerka-labadaba waxaad ku yareysaa mindhicirka yar waxayna ku wareegtaa dhiigga.
Phytosterols, oo leh qaab isku mid ah maadadaha kolesteroolka, ayaa si yar looga soocaa mindhicirka yar. Sidaa daraadeed, phytosterols ma galaan dhiigga waxaana lagu bedelaa. Daraasadaha qaarkood waxay ogaadeen in phytosterols ay awood u yeelan karto in ay joojiso ama yareeyso xannaaneynta cuntada kolestaroolka. Daraasadahaan waxay aqoonsadeen qaar ka mid ah unugyada yar ee xiidmaha yar yar ee laga yaabo in ay wax ka beddelaan phytosterols, sida adenosine trafostrate cajalad-qaadaha ah A1 (ABCA1).
Mammogelooyinkan ayaa masuul ka ah sii kordhinta maqaarka ee kolestaroolka saxarada. Daraasado kale waxay soo jeedinayaan in phytosterols ay saameyn ku yeelan karto habka kolestaroolka uu jidhka u kicin karo. Daraasaddan ayaa muujisay in daaweynta phytosterols ay hoos u dhigi karto qaddarka VESTL kolesterol, kolesteroolka IDL iyo kolestarol LDL oo laga sameeyay beerka.
Nasiib darro, daraasadahaani waa kuwo is khilaafsan, farsamooyinka ay phytosterols ku sameeynayso si aan la garanayn.
Inkastoo daraasado dheeraad ah loo baahan yahay si loo ogaado sida ay phytosterols uga shaqeyneyso hoos u dhigista baruurtarkaaga LDL, daraasaduhu waxay muujiyeen in ay ku jiraan cuntooyinka Phytosterol ku salaysan cuntadaada iyo yaraynta qaddarka dufanka buuxa ee aad isticmaasho ay kaa caawin karto yaraynta heerarkaaga LDL. Inkasta oo cuntooyin badan oo caafimaad leh ay ku jiraan phytosterols, waxaa laga yaabaa inaysan ku filneyn in ay si buuxda u ogaato saameynta baruurta ee hoos u dhigaya nafaqadan. Tusaale ahaan, in kastoo 2 garaam oo daawada phytosterols maalin walba loo baahan yahay si loo arko yarayn yar ee kolestaroolka LDL, waxaa lagu qiyaasay in dadka caadiga ah kaliya ay helayaan qiyaastii 150 illaa 350 mg oo ah phytosterols maalin kasta. Fytosterol-ku- darka dheeraadka ah iyo cuntooyinka lagu xoojiyo phytosterols ayaa sidoo kale ka caawin kara qaadashada daawada phytosterol.
> Ilo:
> Calpe-Berdiel L, JC Escola-Gil, F Blanco-Vaca. Fikrado cusub oo ku saabsan falalka molecular ee sterol dhirta iyo stanol ee metabolism cholesterol: dib u eegis. Atherosclerosis 2009; 203: 18-31
> Clifton P. Hoos-u-dhaca kolestaroolka - dib-u-eegis ku saabsan doorka sterololeedka dhirta. Aust Fam Physician 2009; 38: 218-221.
> Malinowski JM, MM Gehret. Phytosterols ee dyslipidemia. Am J Health Farm ee 2010; 67: 1165-1173.