Yeruusaalem, 18 Nofeembar, 2025 (TPS-IL) — Jidhka bini’aadamka wuxuu leeyahay awood cajiib ah oo uu isaga difaaco da’da la xiriirta ee hoos u dhacda — isagoo hagaajiya dhaawaca, taageera caafimaadka wadnaha iyo maskaxda, kana ilaaliya cudurrada guud — iyada oo loo marayo nidaamyo ilaaliya dheelitirka kiimikada gudaha. Hadda, cilmi-baarayaal Israa’iili iyo Maraykan ah ayaa iftiimiyay sida mid ka mid ah nidaamyadan u shaqeeyo, iyagoo bixinaya tilmaamo lagu kordhin karo sanadaha firfircoon ee caafimaadka leh ee nolosha dambe.
Daraasadda ayaa diiradda lagu saaray borotiin caan ku ah doorkiisa dheeraynta nolosha iyo ka hortagga cudurrada. Cilmi-baarayaashu waxay ogaadeen inuu ka dhigo wax ka badan difaacida da’da: wuxuu si taxaddar leh u maamulaa unug la yiraahdo hydrogen sulfide, kaas oo taageera bogsashada dhaawaca, caafimaadka wadnaha, iyo shaqada maskaxda. Inkastoo heerarka hydrogen sulfide ay si dabiici ah u yaraadaan da’da, borotiinkan wuxuu hubiyaa in wax-soo-saarku uu ku jiro meel ku habboon—kuna filan si uu u ilaaliyo unugyada iyo nudaha, laakiin aan aad u sarreyn si uu waxyeelo u geysto.
“Borotiinkan wuxuu u shaqeeyaa sidii nooca jirka ee xaddidda kalooriga,” ayuu yiri Prof. Xaam Cooxen, oo ah agaasimaha Xarunta Dheeraynta Nolosha Bini’aadamka ee Sagol ee Jaamacadda Bar-Iilaan. “Wuxuu ka ilaaliyaa cudurrada la xiriira da’da wuxuuna caawiyaa inuu ilaaliyo dheelitirka dabiiciga ah ee jirka marka aan sii gaboobno. Wuxuu hal lug saaraa gaaska, kan kalena jarka—isagoo dhiirigeliya wax-soo-saarka hydrogen sulfide marka ay faa’iido leedahay laakiin ilaalinaya si looga hortago waxyeelada.”
Cooxen wuxuu hoggaamiyay daraasadda oo ay weheliso ardayda PhD Noga Touitou, iyadoo la kaashanayo shaybaarka Prof. Rafael de Cabo ee Machadka Qaranka ee Da’da ee Baltimore, Maryland.
Cilmi-baarista waxay ku saleysan tahay daraasado hore oo muujinaya in borotiinkan uu kordhin karo nolosha iyo inuu ka ilaaliyo xaalado badan oo la xiriira da’da. Si kastaba ha ahaatee, ilaa hadda, cilmi-baarayaashu ma aysan si buuxda u fahmin sida uu u gaaro saameyntan. Natiijooyinka waxay muujinayaan in furaha uu yahay maamul sax ah oo hydrogen sulfide ah, halkii laga kordhin lahaa heerarka, taasoo muujineysa muhiimadda dheelitirka ee da’da caafimaadka leh.
“Natiijooyinkeena waxay muujinayaan mid ka mid ah xeeladaha dabiiciga ah ee jirka si uu u ahaado mid caafimaad qaba inta lagu jiro da’da,” ayuu sharaxay Cooxen. “Adigoo muujinaya sida borotiinkan uu u maamulo wax-soo-saarka hydrogen sulfide, waxaan bixinaynaa faham ku saabsan sida da’da loo gaabin karo waxaanan aqoonsanay meelo suurtagal ah oo lagu sameeyo daaweyn caawisa dadka inay sii ahaadaan kuwo caafimaad qaba muddo dheer.”
Natiijooyinka waxay fureen fursado lagu kordhin karo hababka hagaajinta ee dabiiciga ah ee jirka. Cilmi-baarayaashu waxay samayn karaan daawooyin kordhiya ama hagaajiya shaqada Sirt6 iyagoo aan ku tiirsanayn xaddidda kalooriga ee adag, taasoo ka caawin karta ka hortagga ama gaabinta cudurrada la xiriira da’da sida kansarka, macaanka, arrimaha wadnaha, iyo daciifnimada.
Maadaama Sirt6 uu si sax ah u maamulo heerarka hydrogen sulfide (H2S), daawooyinka ama faragelinta ayaa ku jihaysan kara inay ilaaliyaan H2S gudaha meel ku habboon, iyagoo ka fogaanaya khatarta xad-dhaafka ama yaraanta. Tani waxay hagaajin kartaa bogsashada dhaawaca, caafimaadka wadnaha, iyo shaqada maskaxda ee dadka waaweyn.
Intaa waxaa dheer, heerarka H2S iyo firfircoonida Sirt6 waxay noqon karaan calaamado la cabbiri karo si loo qiimeeyo da’da bayoolojiga ah iyo loo habeeyo faragelinta shakhsi ahaaneed ee xaaladaha la xiriira da’da.
Daraasadda ayaa lagu daabacay majaladda la qiimeeyay ee Proceedings of the National Academy of Sciences.
