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Epigenetic's

Kooxda Daawada ee Shaqeeya ee Epigenetics ee dhabarka. Daraasadda isbeddellada dhaxalka ah ee muujinta hidda-wadaha (firfircoon ka soo horjeeda hiddo-wadaha aan firfircoonayn) kuma jiraan isbeddellada taxanaha DNA, isbeddelka phenotype iyada oo aan isbeddelin genotype, taas oo saamaysa sida unugyadu u akhriyaan hiddo-wadaha. Isbeddelka epigenetic waa dhacdo caadi ah oo caadi ah oo sidoo kale saameyn ku yeelan kara dhowr arrimood: da'da, deegaanka, qaab nololeedka, iyo xaaladda cudurka. Isbeddellada Epigenetic waxay si caadi ah u muujin karaan sida unugyadu ay ugu kala soocaan unugyada maqaarka, unugyada beerka, unugyada maskaxda, iwm.

Cilmi-baaris cusub oo socota ayaa si joogto ah u daaha ka qaadaysa doorka epigenetics ee cudurrada kala duwan ee aadanaha iyo cudurrada dilaaga ah. Calaamadaha Epigenetic aad ayey u deggan yihiin xilliga qaangaarka. Si kastaba ha ahaatee, weli waxaa loo maleynayaa inay yihiin kuwo firfircoon oo wax laga beddeli karo doorashada qaab nololeedka iyo saameynta deegaanka. Waxa muuqata in saamaynta epigenetic aanay ku dhicin uur-kujirka oo keliya balse ay ku jirto muddada buuxda ee nolosha bini'aadamka. Daah-fur kale ayaa ah in isbeddellada epigenetic la beddeli karo. Tusaalayaal badan oo epigenetics ah ayaa muujinaya sida kala duwan ee doorashooyinka qaab nololeedka iyo soo-gaadhista deegaanku ay u beddeli karaan calaamadaha DNA-da oo ay door uga ciyaaraan go'aaminta natiijooyinka caafimaadka.


Nafaqada Hidde-Epigenetic iyo Caafimaadkeena | El Paso, TX.

Nafaqada Hidde-Epigenetic iyo Caafimaadkeena | El Paso, TX.

Sidee bay nafaqaynta shakhsi ahaaneed iyo epigenetic uga qayb qaadataa caafimaadka ugu fiican?

Badideen waynu ognahay cuntada aan caafimaadka lahayn sida ay u saamayso jidhkeena. Iyaga

  • Qunyar socodka dheef-shiid kiimikaadka
  • Ku dar Miisaanka
  • Xididka iyo adkaanta halbowlayaasha iwm.
caafimaadka nafaqeynta epigenetic el paso tx.

Laakin hadda waxa jira cunnooyin iyo cunno nagu caawin kara hab oo ka iman kara meel aynaan ka fikirin, taasina waa DNA-gayada.

Nutriepigenomics waxay baartaa xiriirka ka dhexeeya cuntada iyo biomarkers kuwaas oo lagu dhejin karo ama laga saari karo DNA-dayada. Tani waxay daartaa ama daminaysaa hidde-sideyaashayada.

Daraasado cusub ayaa muujinaya in la hubo cuntooyinka ama kaabista waxay hagaajin kartaa muujinta hidde-sideyaashayada, taas oo saameyn karta caafimaadkeena.

Genomics nafaqeynta waxa uu wax ka beddelayaa dhaqamada nafaqeynta ee kiliinikada iyo caafimaadka dadweynaha labadaba:

Cuntada, jimicsiga, iyo soo-gaadhista deegaanku waa dhammaan walxaha muujiyay doorka beddelka hiddo-wadaha iyo daminta iyada oo loo marayo epigenetics. Hab-nololeedka hab-nololeedka oo la isku hagaajiyo ayaa xakameyn kara awoodda lagu dhimi karo cudurrada waxayna saameyn togan ku yeelan kartaa caafimaadkeenna.

Xirfadlayaasha caafimaadka Dhammaantood waxay bilaabeen inay ku daraan epigenetics-ka dhaqankooda ujeeddadoodu tahay inay bixiyaan qorshooyin daaweyn oo gaar ah oo gaar ah.

takhasuska daaweynta xanuunka dhabarka

�Qoritaanka macluumaadka sida cuntada, qaab nololeedka, arrimaha deegaanka, taariikhda qoyska, calaamadaha, iyo ogaanshaha ay weheliso epigenetics waxay gacan ka geysan kartaa hagidda qof xaalad caafimaad oo la hagaajiyay, ayuu yidhi Kristy Hall, MS, RNCP, ROHP, guddi nafaqeeyayaal shaqeynaya iyo aasaasaha Nafaqada Fiican Nolosha oo adeegsata baaritaanka epigenetic, la-talinta nafaqeynta, iyo habab dhinacyo badan leh si ay si wanaagsan wax ugu qabato macaamiisheeda.


Waxaa laga yaabaa 15, 2018Bailey Kirkpatrick CuntadaCudurada & XanuunadaDeegaankaWararka & Faallooyinka
xeeladaha nafaqeynta

Dhakhaatiirta cuntada ee diiwaangashan ayaa fursad u helaya inay soo jeediyaan talooyinka cuntada ee hidde ahaan loo wado ee hagaajin kara caafimaadka aadanaha.

Nafaqadu waa mid ka mid ah arrimaha aasaasiga ah ee deegaanka ee go'aamiya caafimaadkeena. Cudurada joogtada ah waxaa ka mid ah:

  • Nooca sonkorowga 2
  • Cudurka Metabolic
  • Cudurka wadnaha
  • Cudurka neerfaha
  • Kansarro kala duwan
  • Waxaa bilaabay ama dardargeliyay nafaqo/cunto

Qeybtan cilmi-baarista nafaqeynta waxaa loo tixraaci karaa sida Genomics Nafaqada.

Nucleotide polymorphisms oo keli ah (SNPs) waa kala duwanaansho hal-saldhig ah oo DNA ah. Waxay u taagan yihiin qaabka aasaasiga ah ee kala duwanaanshaha hidde-raaca aadanaha.

DNA SNP

Unugyada DNA-da sare waxay ka duwan yihiin unugyaraha DNA-da hoose ee hal meel oo saldhig ah (C/A polymorphism)

Hidde-yaqaannada nafaqada ama nafaqeynta ayaa ku lug leh aqoonsiga, kala saarista, iyo sifada Kala duwanaanshaha hidde-sidaha aadanaha ee wax ka beddela dheef-shiid kiimikaadka/ isticmaalka iyo dulqaadka cuntada Jaantus1.

caafimaadka nafaqeynta epigenetic el paso tx.
IOM. Nutrigenomics iyo wixii ka baxsan: Ogeysiinta mustaqbalka. Washington, DC: Saxaafadda Akadeemiyada Qaranka; 2007.

Codsiga: Hiddaha & Epigenetics

Nafaqooyinka, tusaale ahaan, Daawooyinka, waa saameyno xoog leh oo muujinta genome-ga iyo xasiloonida, iyo isdhexgalka hidde-nafaqada ayaa loo wanaajin karaa ka hortagga cudurrada.

caafimaadka nafaqeynta epigenetic el paso tx.

Nafaqada Shakhsi ahaaneed

Ballanqaadka injineernimada nafaqeynta ee caafimaadka ugu wanaagsan iyada oo loo marayo cuntada ayaa weli socota, laakiin dadweynuhu waxay hayaan rajooyin wanaagsan, sida lagu caddeeyey isticmaalka kaabisyada cuntada.

Cilmi-baadhis cilmiyaysan ayaa muujinaysa in nafaqooyinka ku jira cuntooyinka kala duwan iyo kaabayaasha aynu cunno ay awood u yeelan karaan inay hagaajiyaan ama beddelaan isbeddellada la dhaxlo. Caddeyntan waxa loo isticmaali karaa samaynta doorashooyin hab nololeed oo wanaagsan.

Blueberries waxay aad ugu badan tahay antioxidants-ka waxaana loo maleynayaa in cuntadan sare ay si epigenetic ahaan u yareeyn karto waxyeelada DNA-da, taasoo ka ilaalineysa bini'aadamka kansarka iyo suurtagalnimada xitaa gabowga tartiib tartiib ah. Casiirka blueberry iyo fitamiin C ayaa la muujiyay inay yihiin horjoogayaasha methylation ee suurtagalka ah ee hidda-wadaha MTHFR iyo hiddasidaha DNMT1 ee bini'aadamka.


Kim, M., Na, H., Kasai, H., Kawai, K., Li, Y.-S., & Yang, M. (2017). Isbarbardhigga Blueberry (Vaccinium spp.) iyo Vitamin C iyada oo loo sii marayo Antioxidative iyo Epigenetic Effects ee Aadanaha. Joornaalka Kahortagga Kansarka, 22(3), 174�181.

Barashada waxa aan cunno iyo waxa ay ku sameeyaan jirkeena, gaar ahaan saameynta epigenetic ee suurtagalka ah, waa hal tallaabo oo kaliya oo u dhow caafimaadka ugu fiican.

Doorka Epigenetics ee Cayilka iyo Cudurka dheef-shiid kiimikaadka

Doorka Epigenetics ee Cayilka iyo Cudurka dheef-shiid kiimikaadka

Abstract Epigenetic:

Korodhka buurnida iyo cudurrada la xidhiidha waa dhibaato caafimaad oo bulsho oo weyn. Iyadoo arrimaha hidde-sidaha shaki la'aan ay door ka ciyaaraan go'aaminta u nuglaanshaha shakhsi ahaaneed ee korodhka miisaanka iyo cayilka, noocyada hidde-raaca ee la aqoonsaday ayaa kaliya sharaxaya qayb ka mid ah kala duwanaanshaha. Tani waxay keentay xiisaha sii kordhaya ee fahamka doorka suurtagalka ah ee epigenetics sida dhexdhexaadiyaha isdhexgalka hidda-socodka deegaanka ee hoosta ka ah horumarinta buurnaanta iyo isku-dhafka la xidhiidha. Caddaynta bilawga ah ee lagu taageerayo doorka epigenetics ee buurnaanta iyo nooca 2 diabetes mellitus (T2DM) waxaa inta badan bixiyay daraasado xayawaan ah, kuwaas oo soo sheegay isbeddellada epigenetic ee unugyada muhiimka ah ee dheef-shiid kiimikaadka ka dib quudinta dufanka badan iyo kala duwanaanshaha epigenetic ee u dhexeeya xayawaanka caatada ah iyo cayilka iyo by Daraasadaha bini'aadamka oo muujiyay isbeddellada epigenetic ee buurnaanta iyo T2DM hiddo-wadaha musharaxiinta ee shakhsiyaadka cayilan / sonkorowga. Dhawaanahan, horumarka hababka epigenetic iyo qiimaha dhimista ee daraasadaha ururka epigenome-wide Association (EWAS) ayaa horseeday fidinta degdegga ah ee daraasadaha dadweynaha. Daraasadahaani waxay sidoo kale soo sheegeen kala duwanaanshaha epigenetic ee u dhexeeya dadka waaweyn ee cayilan / T2DM iyo kontaroolada caafimaadka leh iyo isbeddellada epigenetic ee xiriirka nafaqada, miisaanka luminta, iyo waxqabadyada jimicsiga. Waxaa sidoo kale jira caddayn sii kordheysa oo laga helayo daraasadaha aadanaha iyo xayawaanka labadaba in xiriirka ka dhexeeya soo-gaadhista nafaqeynta dhalmada iyo khatarta dambe ee buurnaanta iyo T2DM ay dhexdhexaadin karaan isbeddellada epigenetic ee faraca. Ujeedada dib u eegistani waa in la soo koobo horumaradii ugu dambeeyay ee goobtan dhaqsaha badan u socota, iyada oo si gaar ah diiradda loo saarayo EWAS bini'aadamka iyo daraasadaha lagu baarayo saameynta nafaqooyinka iyo hab-nololeedka (labadaba ka hor iyo ka dib) ee epigenome iyo xiriirka ay la leeyihiin dheef-shiid kiimikaadka natiijooyinka caafimaadka. Dhibaatooyinka kala soocida natiijada ka dhalan karta daraasaddan iyo doorka muhiimka ah ee moodooyinka xayawaanka ee tijaabinta xidhiidhada sababaha iyo bixinta aragtida hababka hoose ayaa sidoo kale wax laga qabtaa. Marka la soo koobo, aagga epigenetics iyo caafimaadka dheef-shiid kiimikaadka ayaa arkay horumar degdeg ah waqti gaaban. Iyadoo natiijooyinka ilaa hadda ay yihiin kuwo rajo leh, daraasaduhu waa socdaan, tobanka sano ee soo socdaa waxay ballanqaadayaan inay noqdaan wakhti cilmi-baaris wax ku ool ah oo ku saabsan isdhexgalka kakan ee u dhexeeya genome, epigenome, iyo deegaanka marka ay la xiriiraan cudurrada dheef-shiid kiimikaadka.

Keywords: Epigenetics, DNA methylation, Cayilka, Nooca 2 ee sonkorowga, barnaamijka horumarinta

Hordhac

Farsamooyinka EpigeneticCayilku waa cudur kakan, cuduro badan oo kala duwan, iyo faham wanaagsan oo ku saabsan hababka asaasiga ah ee isdhexgalka ka dhexeeya qaab nololeedka, deegaanka, iyo hiddaha ayaa muhiim u ah horumarinta xeelado wax ku ool ah oo ka hortagga iyo daaweynta [1].

Bulshada ay cuntada tamarta-cufan ku badan tahay baahida dhaqdhaqaaqa jireedna ay yar tahay, waxaa jira kala duwanaansho ballaaran oo shakhsiyaadka u nugul inay yeeshaan cayilka iyo dhibaatooyinka caafimaadka dheef-shiid kiimikaadka. Qiyaasta doorka dhaxalka ee kala duwanaanshahan ayaa ah inta u dhaxaysa 40 – 70%, halka daraasaadka ururka genome-ballaaran (GWAS) ay ogaadeen tiro ka mid ah meelaha hidde-sidaha ee la xidhiidha khatarta buurnida, ~ 100 kala duwanaanshaha hidde ee ugu caansan kaliya waxay ku xisaabtamaysaa dhowr boqolkiiba kala duwanaanshaha buurnaanta [2, 3]. Qiyaasaha genome-ballaaran ayaa sarreeya, xisaabinta ~ 20% kala duwanaanshaha [3]; si kastaba ha ahaatee, qayb weyn oo ka mid ah dhaxalka ayaa ah mid aan la sharraxin.

Dhawaan, dareenka ayaa u soo jeestay baaritaanka doorka isbeddellada epigenetic ee etiology ee buurnaanta. Waxaa lagu dooday in epigenome-ku uu matali karo xiriirka farsamada ee u dhexeeya noocyada hidde-sideyaasha iyo arrimaha deegaanka ee go'aaminta khatarta buurnaanta waxayna gacan ka geysan kartaa sharraxaadda dhaxalka ee maqan. Iyadoo tani guud ahaan ay keentay dib-u-soo-celin xumo, qaar ka mid ah natiijooyinkan hore, tusaale ahaan xiriirka ka dhexeeya PGC1A methylation iyo nooca 2 diabetes mellitus (T2DM) [4] iyo kuwa kale sida looga hadlay van Dijk et al. [5], ayaa lagu soo celceliyay daraasadaha dambe. Horumarkii dhawaa iyo korodhka la awoodi karo ee tignoolajiyada wax soo saarka sare ayaa hadda u oggolaanaya daraasaadka ballaaran ee epigenome wide association (EWAS) iyo is dhexgalka lakabyada kala duwan ee macluumaadka genomic si loo sahamiyo isdhexgalka kakan ee u dhexeeya genotype, epigenome, transcriptome, iyo deegaanka [6] 9]. Daraasadahan ayaa weli ku jira dhallaankooda, laakiin natiijooyinka ilaa hadda waxay muujiyeen ballanqaad ah inay gacan ka geysanayaan sharraxaadda kala duwanaanshaha u nugulnaanta buurnaanta.

Waxaa jira caddayn isa soo taraya oo muujinaya in buurnidu ay ka soo baxday asal ahaan maskaxeed, maaddaama soo-gaadhista nafaqo-xumo yar ka hor dhalashada ama horraanta dhallaanka ay la xiriirto khatarta sii kordheysa ee buurnaanta iyo cudurrada dheef-shiid kiimikaadka nolosha dambe [10�13]. Markii hore, daraasadaha xayawaanku waxay muujiyeen in noocyo kala duwan oo ah soo-gaadhista nafaqeynta ee nolosha hore, gaar ahaan kuwa hore u soo maray uurka, ay keeni karaan isbeddellada epigenetic ee unugyada muhiimka ah ee dheef-shiid kiimikaadka faracan oo sii jiray dhalmada ka dib oo ay keento isbeddel joogto ah oo ku yimaada shaqada hidda-socodka [13�17]. Waxaa soo baxaya cadaymo taageeraya jiritaanka hab isku mid ah oo bini'aadamka ah. Tani waxay keentay in la raadiyo calaamadaha epigenetic ee hore ee nolosha kuwaas oo saadaaliya khatarta dambe ee cudurrada dheef-shiid kiimikaadka, iyo daraasado lagu ogaanayo in barnaamijka epigenetic ee cudurrada dheef-shiid kiimikaadka laga hortagi karo ama laga beddeli karo nolosha dambe.

Dib-u-eeggani wuxuu bixiyaa cusboonaysiinta dib-u-eegistii hore ee habaysan ee daraasadaha ku saabsan epigenetics iyo buurnaanta aadanaha [5]. Dib-u-eegisteena hore waxay soo bandhigtay natiijooyinka rajo-gelinta ah ee daraasadaha bilowga ah, oo ay ku jiraan calaamadaha epigenetic ee ugu horreeya ee buurnaanta ee lagu ogaan karo dhalashada (tusaale, RXRA) [18]. Si kastaba ha ahaatee, waxay sidoo kale iftiimisay dib u soo saarista xaddidan ee natiijooyinka iyo la'aanta baaritaannada dheer ee cabbirka ballaaran. Dib-u-eegga hadda jira wuxuu diiradda saarayaa horumarradii ugu dambeeyay ee goobtan si degdeg ah u socota iyo, gaar ahaan, EWAS bini'aadamka iyo daraasadaha lagu baarayo saameynta (kahor iyo ka dib) nafaqooyinka iyo arrimaha hab-nololeedka ee epigenome iyo doorka soo ifbaxaya ee epigenetics ee cudurada buurnaanta. . Waxaan sidoo kale wax ka qabannaa dhibaatooyinka lagu aqoonsanayo sababaha daraasaddan iyo muhiimadda moodooyinka xayawaanka ee bixinta aragtida hababka.

Review

Isbeddellada Epigenetic ee Qaababka Xoolaha ee Cayilka

cunista bakayleMoodooyinka xayawaanku waxay bixiyaan fursado gaar ah oo loogu talagalay daraasado si heer sare ah loo koontaroolay oo bixiya aragti farsamo oo ku saabsan doorka calaamadaha epigenetic ee gaarka ah, labadaba sida tilmaamayaasha heerka dheef-shiid kiimikaadka hadda iyo saadaalinta khatarta mustaqbalka ee buurnaanta iyo cudurrada dheef-shiid kiimikaadka. Arrin gaar ah oo muhiim ah oo ka mid ah daraasadaha xayawaanka ayaa ah inay oggolaadaan in la qiimeeyo isbeddellada epigenetic ee unugyada bartilmaameedka ah, oo ay ku jiraan beerka iyo hypothalamus, taas oo aad ugu adag bini'aadamka. Intaa waxaa dheer, awoodda goosashada tiro badan oo unug cusub ah ayaa suurtogal ka dhigaya in la qiimeeyo calaamado chromatin oo badan iyo sidoo kale methylation DNA. Qaar ka mid ah isbeddelladan epigenetic ee kaligood ah ama isku dhafan ayaa laga yaabaa inay ka jawaabaan barnaamijyada deegaanka. Noocyada xayawaanka, waxa kale oo suurtogal ah in la barto jiilal badan oo farac ah oo sidaas awgeed awood u yeelashada kala duwanaanshaha u dhexeeya jiil-jiilka iyo isu-gudbinta khatarta buurnaanta ee dhexdhexaadinta xusuusta epigenetic ee xaaladda nafaqada ee waalidka, taas oo aan si fudud loo kala saari karin daraasadaha aadanaha. Waxaan u isticmaalnaa ereyga hore ee gudbinta meiotic ee khatarta ah maqnaanshaha soo-gaadhista joogtada ah halka kan dambe uu ugu horreeyo gudbinta tooska ah ee khatarta iyada oo loo marayo dib-u-habaynta dheef-shiid kiimikaadka uurjiifka ama gametes-ka.

Daraasadaha xayawaanku waxay door muhiim ah ka ciyaareen fahamkeena hadda ee doorka epigenetics ee asalka koritaanka ee buurnaanta iyo T2DM. Nafaqada hooyada oo korodhay iyo hoos u dhacdayba inta lagu guda jiro uurka waxa lala xidhiidhiyay kaydka dufanka badan ee faraca badi noocyada naasleyda ee la bartay ilaa maanta (dib loo eegay [11, 13�15, 19]). Nafaqeynta hooyadu xilliga uurka kaliya ma yeelan karto saameyn toos ah uurjiifka, sidoo kale waxay si toos ah u saameyn kartaa oocytes-ka soo koraya ee uurjiifka dheddigga iyo unugyada jeermiska asaasiga ah ee uurjiifka labka ah sidaas darteed waxay saameyn kartaa labadaba guga iyo faraca. Sidaa awgeed, xogta jiilasha badan ayaa inta badan loo baahan yahay si loo kala saaro habka isu gudbinta jiilasha hooyada iyo dhallaanka.

Shaxda 1 waxay soo koobaysaa noocyo kala duwan oo noocyo xayawaan ah oo loo isticmaalay si ay u bixiyaan caddaynta isbeddellada dheef-shiid kiimikaadka iyo epigenetic ee faraca ee la xidhiidha diyaaradda waalidka ee nafaqada. Waxa kale oo ay ka kooban tahay macluumaadka la xidhiidha daraasadaha lagu aqoonsanayo calaamadaha epigenetic ee isbeddelay ee shakhsiyaadka qaangaarka ah ee ay la kulmaan caqabadaha nafaqeynta tooska ah. Jadwalka waxaa loo qaabeeyey nooca gudbinta halista la soo jeediyay.

jadwalka 1(i) Isbeddellada Epigenetic ee Faraca la xidhiidha Nafaqaynta Hooyada inta lagu jiro uurka

Kaabidda nafaqada hooyada, nafaqo-xumada, iyo nafaqeynta ka badan inta uurka lagu jiro waxay bedeli kartaa kaydinta baruurta iyo tamarta homeostasis ee faracyada [11, 13�15, 19]. Ku xiran saameyntan faracanka ah waa isbeddelada methylation DNA, histone beddelka tarjumaadda ka dib, iyo muujinta hidda-wadaha ee dhowr hiddo-siyeedyo, gaar ahaan hiddo-wadaha xakameynaya dheef-shiid kiimikaadka dufanka leh iyo calaamadaha insulinta [16, 17, 20�30]. Kala duwanaanshaha moodooyinka xayawaanka ee loo isticmaalo daraasaddan iyo dariiqyada dheef-shiid kiimikaadka caadiga ah ee saameeya waxay soo jeedinayaan falcelin la-qabsi ah oo la ilaaliyo oo dhexdhexaadin ah oo isbeddelka epigenetic. Si kastaba ha ahaatee, wax yar oo ka mid ah hiddo-wadaha gaarka ah ee la aqoonsaday iyo isbeddellada epigenetic ayaa lagu saleeyay daraasadaha la xiriira, iyo baaritaanno ballaaran oo genome-ballaaran caadi ahaan lama dabaqin. Caqabadda ugu weyn ee isbarbardhigga daraasaddan waa daaqadaha maskaxeed ee kala duwan ee soo food saaray caqabad xagga nafaqeynta ah, taasoo keeni karta natiijooyin aad u kala duwan. Caddaynta in isbeddellada epigenetic ay sabab u yihiin halkii lala xiriirin lahaa isbeddellada phenotypic faraca ayaa sidoo kale loo baahan yahay. Tani waxay u baahan doontaa aqoonsiga jawaabta xusuusta epigenetic ee nafaqeynta waalidka ee ka horreysa horumarinta phenotype beddelka ee faraca.

(ii) Saamaynta Nafaqeynta Aabuhu Ku Leedahay Farcanka Calaamadaha Epigenetic

ilmo hurda oo gacmaha is haystaDaraasadaha soo ifbaxaya ayaa muujiyay in diyaaradda aabbaha ee nafaqeynta ay saameyn ku yeelan karto dhigaalka baruurta farcanka iyo calaamadaha epigenetic [31�34]. Mid ka mid ah baaritaan dhowaan la isticmaalay oo la adeegsanayo jiirarka ayaa muujiyay in cudurka macaanka ka hor aabbaha uu keeno u nuglaanta macaanka ee farcanka F1 oo leh isbeddello la xiriira muujinta hidda-wadaha pancreatic iyo DNA methylation oo ku xiran calaamadaha insulinta [35]. Muhiimad ahaan, waxaa jiray is-daba-marin isbeddelladan epigenetic ee jasiiradaha ganaca iyo shahwada oo soo jeedinaysa dhaxalka khadka jeermiska. Si kastaba ha ahaatee, inta badan daraasadahan, in kasta oo ay xiiso u leeyihiin saameyntooda, waxay ku xaddidan yihiin cabbirka genomic ee baaritaanka waxayna si joogta ah u muujiyaan daciifnimo iyo isbeddello epigenetic ah oo ku-meel-gaar ah oo la xidhiidha phenotypes dheef-shiid kiimikaad fudud ee faraca.

Iii

nafaqaynta xad dhaafka ahGudbinta xasilloonida xogta epigenetic ee jiilal badan ayaa si fiican loogu sharraxay nidaamyada dhirta iyo C. xarrago leh, laakiin muhiimadda ay u leedahay naasleyda ayaa weli aad looga dooday [36, 37]. Aasaaska epigenetic ee gudbinta waalidka awoowaha ee noocyada phenotypes ee ka jawaabaya soo-gaadhista cuntada ayaa si wanaagsan loo aasaasay, oo ay ku jiraan noocyada xoolaha [31]. Daraasadaha ugu saameynta badan ee muujinaya saameynta gudbinta epigenetic ee saameeya phenotype farcanka ayaa adeegsaday tusaale ahaan jiirka jaalaha ah ee agouti (Avy) [38]. Jiirkaan, gelinta retrotransposon ee kor ka ah hiddo-wadaha agouti waxay sababtaa muujintiisa ka kooban midabka jaakada jaalaha ah iyo cayilka qofka qaangaarka ah. Gudbinta hooyada iyada oo loo marayo xariiqda jeermiska waxay keentaa DNA methylation - aamusnaanta dhexdhexaadinta ee muujinta agouti taasoo keentay midabka jaakad duurjoogta ah iyo nooca caatada ah ee faraca [39, 40]. Muhiimad ahaan, daraasadihii xigay ee jiirarkan ayaa muujiyay in soo-gaadhista hooyada ee ku-deeqayaasha methyl ay keento isbeddelka midabka jaakadaha [41]. Hal daraasad ayaa ka warbixisay gudbinta phenotype ee jiilka F3 iyo isbeddellada muujinta tiro badan oo hidde-sideyaal ah oo ka jawaabaya xaddidaadda borotiinka ee F0 [42]; si kastaba ha ahaatee, isbeddelada muujinta waxay ahaayeen kuwo aad u kala duwan oo xiriirka tooska ah ee isbeddelada epigenetic lama aqoonsan nidaamkan.

(iv) Soo bandhigida tooska ah ee Shakhsiyaadka Nafaqada Xad dhaafka ah ee Nolosha Dhalmada Kadib

qaab nololeedka casriga ah ee reer galbeedkaInkastoo cilmi-baarisyo badani ay aqoonsadeen isbeddellada epigenetic ee la xidhiidha cuntada ee moodooyinka xayawaanka iyadoo la adeegsanayo gobollo gaar ah oo goobta musharaxa ah, waxaa jiray dhowr falanqayn oo genome ah oo la sameeyay. Daraasad dhowaan la sameeyay ayaa diiradda lagu saaray go'aaminta saameynta tooska ah ee epigenetic ee cuntooyinka dufanka badan / cayilka ay keento cunnada ee jiirarka qaangaarka iyadoo la adeegsanayo muujinta hidda-wadaha-ballaaran iyo falanqaynta DNA methylation [43]. Daraasadani waxay cadaysay 232 gobol oo kala duwan oo methylated (DMRs) oo ku jira adipocytes oo ka yimid kantaroolka iyo jiirarka la quudiyo ee dufanka badan. Muhiimad ahaan, gobollada u dhigma ee bini'aadamka ee DMR-yada murinka ayaa sidoo kale si kala duwan loogu sameeyay unugyo adipose ah oo ka yimid dadka cayilan iyo bini'aadamka caatada ah, taas oo muujinaysa ilaalinta cajiibka ah ee horumarinta gobolladan. Natiijadani waxay xooga saaraysaa muhiimada ay u badantahay in DMR-yada la aqoonsaday ay ku maamulaan tamarta homeostasis ee naasleyda.

Daraasaadka Bani'aadamka

qaabka anatomy 3D

Iyada oo la adeegsanayo caddaynta daraasadaha xayawaanka iyo helitaanka sii kordhaya ee helitaanka qalabyada la awoodi karo ee falanqaynta genome-ballaaran, waxaa si degdeg ah u balaadhiyey daraasadaha epigenome ee bini'aadamka. Daraasadahani waxay inta badan diiradda saareen aqoonsiga kala duwanaanshaha goobta-gaarka ah ee methyl DNA-da ee la xidhiidha phenotypes dheef-shiid kiimikaad.

Su'aasha muhiimka ah ayaa ah inta ay le'eg tahay isbeddellada epigenetic waxay gacan ka geystaan ​​horumarinta phenotype-ka dheef-shiid kiimikaadka, halkii ay si fudud u noqon lahaayeen cawaaqibkeeda (Jaantus. 1). Barnaamijyada Epigenetic waxay gacan ka geysan karaan horumarinta buurnaanta, iyo sidoo kale door ka ciyaarista khatarta ka dhalan karta dhibaatooyinka wadnaha iyo xididdada dhiigga. Daraasadaha bini'aadamka, way adagtahay in la caddeeyo sababaha [44], laakiin fikradaha waxaa laga samayn karaa dhowr sadar oo caddayn ah:

sawir 1(i) Daraasadaha ururka hidaha. Polymorphism-yada hidde-sideyaasha ee lala xiriiriyo khatarta sii kordheysa ee horumarinta xaalado gaar ah ayaa ah mudnaan ku xiran hidde-sidayaasha sababa. Joogitaanka kala duwanaanshiyaha methylation ee gobolladan oo kale waxay ka dhigaysaa ku habboonaanta shaqada ee isbeddelladan epigenetic ee xakamaynta muujinta hidda-wadaha u dhow. Waxaa jira saameyno hidde-siyeed oo xooggan oo hoosta ka xariiqaya kala duwanaansho badan oo epigenetic ah [7, 45], iyo daraasadaha dadweynaha ku salaysan, hababka isticmaala beddelka hidde-sideyaasha si loo ogaado sababta ama doorka dhexdhexaadinta ee kala duwanaanshaha epigenome ayaa la dabaqay [7, 46 48] . Isticmaalka macluumaadka hidde-sidaha qoyska ayaa sidoo kale horseedi kara aqoonsiga gobollada musharaxiinta ee suurtagalka ah oo muujinaya methylation ka duwanaanshaha phenotype [49].

(ii) Waqtiga isbeddellada epigenetic. Jiritaanka calaamadda epigenetic ka hor horumarinta phenotype waa muuqaal lama huraan ah oo la xidhiidha sababaha. Taa beddelkeeda, joogitaanka calaamadda la xidhiidha buurnaanta, laakiin aan ahayn ka hor korriinkeeda, ayaa loo isticmaali karaa in laga saaro sababaha laakiin kama saari doono doorka suurtogalka ah ee cudurrada la xidhiidha cayilka xiga.

(iii) Farqiga macquulka ah ee habka. Tani waxay tilmaamaysaa isbeddellada epigenetic ee la xidhiidha muujinta beddelka ah ee hiddo-wadaha oo leh door la aasaasay oo lagu xakameynayo phenotype ee xiisaha. Mid ka mid ah tusaale ahaan waa ururka methylation ee labada goobood ee CpG ee hidda-wadaha CPT1A oo leh heerarka triglyceride ee wareegaya [50]. CPT1A waxay qeexaysaa carnitine palmitoyltransferase 1A, enzyme oo leh doorka dhexe ee dheef-shiid kiimikaadka dufanka dufanka leh, tani waxay si xooggan u muujineysaa in methylation kala duwan ee hidde-sidahaan laga yaabo inuu sabab u yahay isbeddelada heerarka triglyceride plasma.

Daraasadaha Ururka Epigenome-Wide: Aqoonsiga Epigenetic Biomarkers of Health Metabolic

Tiro baadhitaano dhowaan ah ayaa diiradda lagu saaray sahaminta ururada ka dhexeeya cayilka/cudurada dheef-shiid kiimikaadka iyo methyl DNA-da guud ahaan genome (Shaxda 2). EWAS-da ugu weyn ee la daabacay ilaa hadda, oo ay ku jiraan wadarta 5465 shakhsiyaadka, ayaa aqoonsaday 37 methylation goobaha dhiigga kuwaas oo lala xiriiriyay index mass index (BMI), oo ay ku jiraan goobaha CPT1A, ABCG1, iyo SREBF1 [51]. Daraasad kale oo ballaaran ayaa muujisay ururo joogto ah oo u dhexeeya BMI iyo methylation ee HIF3A ee dhiigga oo dhan iyo unugyada adipose [52], natiijo taas oo sidoo kale qayb ahaan lagu soo koobay daraasado kale [9]. Ururada kale ee dhawaan la soo sheegay ee u dhexeeya cabbirada la xidhiidha buurnaanta iyo methyl DNA waxaa ka mid ah (i) Farqiga methyl DNA ee u dhexeeya caatada iyo cayil shakhsiyaadka LY86 ee leukocytes dhiigga [53]; (ii) ururada ka dhexeeya PGC1A dhiirrigeliye methylation ee dhiiga carruurta oo dhan iyo adiposity 5 sano ka dib [54]; (iii) ururada udhaxeeya saamiga dhexda-sinta iyo ADRB3 methylation ee dhiiga [55]; iyo (iv) ururada ka dhexeeya BMI, cabbirada qaybinta dufanka jidhka, iyo goobo badan oo DNA methylation ah oo ku jira unugyada adipose [9, 56]. EWAS waxay sidoo kale muujisay ururada ka dhexeeya goobaha methylation DNA iyo dufanka dhiigga [55, 57�59], metabolite serum [60], caabbinta insulin [9, 61], iyo T2DM [48, 62, 63] (Shaxda 2).

miiska 2 condLaga soo bilaabo daraasaddan, methylation beddelka PGC1A, HIF3A, ABCG1, iyo CPT1A iyo RXRA hore loogu sharraxay [18] ayaa u soo baxay inay yihiin biomarkers oo la xidhiidha, ama laga yaabo inay saadaaliyaan, caafimaadka dheef-shiid kiimikaadka kuwaas oo sidoo kale ah musharaxiin macquul ah doorka horumarinta cudurrada dheef-shiid kiimikaadka. .

Isdhexgalka u dhexeeya Genotype iyo Epigenome

Genotype EpigenomeKala duwanaanshaha Epigenetic waxaa si weyn u saameeya kala duwanaanshaha hidde-sideyaasha hoose, iyadoo genotype lagu qiyaasay inuu sharaxo ~ 20 ~ 40% kala duwanaanshaha [6, 8]. Dhawaan, tiro daraasado ah ayaa bilaabay inay isku daraan xogta methylome iyo genotype si loo aqoonsado methylation quantitative trait loci (meQTL) oo la xidhiidha phenotypes cudurka. Tusaale ahaan, unugyada adipose-ka ah, meQTL oo isku dhejisan oo leh goobta halista hidde-sidaha ee BMI ayaa lagu aqoonsaday unugga kor u kaca ee ADCY3 [8]. Daraasado kale ayaa sidoo kale aqoonsaday isku-dhafka u dhexeeya cayilka la yaqaan iyo T2DM khatarta loci iyo DMRs ee la xidhiidha buurnaanta iyo T2DM [43, 48, 62]. Methylation ee tiro ka mid ah DMR-yada noocan oo kale ah ayaa sidoo kale lagu beddelay quudinta dufanka badan ee jiirarka [43] iyo miisaanka oo yaraada ee bini'aadamka [64]. Natiijooyinkani waxay tilmaamayaan xiriirka xiisaha leh ee u dhexeeya kala duwanaanshaha hidde-socodka ee ku xiran u nuglaanshiyaha cudurrada iyo xiriirka ay la leeyihiin gobollada genome-ka ee lagu sameeyo isbeddellada epigenetic si looga jawaabo caqabadaha nafaqeynta, taas oo muujinaysa xiriirka sababa. Xidhiidhka dhow ee u dhexeeya kala duwanaanta hidda-socodka iyo epigenetic waxay muujin kartaa doorkooda muhiimka ah ee abuuritaanka kala duwanaansho shakhsi ahaaneed [65, 66]. Si kastaba ha noqotee, iyada oo natiijooyinkani ay soo jeedinayaan in methyl DNA-da laga yaabo inay noqoto dhexdhexaadiyaha saameynta hidde-sideyaasha, waxaa sidoo kale muhiim ah in la tixgeliyo in labadaba hababka hidde-socodka iyo epigenetic ay si madax-bannaan ugu dhaqmi karaan isla gen. Daraasadaha mataanaha ah [8, 63, 67] waxay bixin karaan fikrado muhiim ah waxayna muujinayaan in kala duwanaanshaha shakhsi ahaaneed ee heerarka DNA-da methylation ay ka soo baxaan inta badan deegaanka aan la wadaagin iyo saameynta stochastic, ugu yaraan saameynaha deegaanka ee la wadaago, laakiin sidoo kale saameyn weyn ku leh hiddaha. kala duwanaansho.

Saamaynta Uurka Dhalmada Ka Hor Iyo Deegaanka Dhalmada Kadib Ee Epigenome-ka

qaabka uurjiifkaDeegaanka dhalmada ka hor: Laba daraasadood oo dhowaan la daabacay ayaa isticmaalay dadyowga bini'aadamka kuwaas oo la kulmay kala duwanaansho dabiici ah oo sahayda nafaqada ah si ay u daraaseeyaan saameynta nafaqada hooyada ka hor ama inta lagu jiro uurka ee methylation DNA ee faraca [68]. Daraasaddii ugu horreysay waxay adeegsatay kooxda hooyada iyo dhallaanka Gambia si ay u muujiso in labadaba kala duwanaanshaha xilliyeed ee ku-deeqaha methyl hooyada uurka leh iyo uurka ka hor BMI ay la xiriirto methylation beddelka dhallaanka [69]. Daraasadda labaad waxay adeegsatay farcanka qaangaarka ah ee kooxda Hunger Winter ee Dutch si ay u baarto saameynta dhalmada ka hor xilliga dhalmada ee nafaqo-xumada daran ee hooyada ee methylation DNA ee hiddo-wadaha ku lug leh koritaanka iyo dheef-shiid kiimikaadka qaangaarka [69]. Natiijooyinku waxay iftiimiyeen muhiimada ay leedahay wakhtiga soo-gaadhista ee saamaynta ay ku leedahay epigenome-ka, maadaama saamaynta epigenetic ee muhiimka ah lagu aqoonsaday kaliya shakhsiyaadka soo gaadhay macluusha inta lagu jiro uurka hore. Muhiimad ahaan, isbeddellada epigenetic waxay ku dhaceen BMI oo kordhay; si kastaba ha ahaatee, suurtogal ma ahayn in daraasaddan lagu caddeeyo in isbeddelladani ay hore u jireen nolosha ama natiijada BMI-ga sare.

Daraasado kale oo dhowaan la sameeyay ayaa caddaynaya in nafaqo-xumada ka-hortagga dhalmada iyo cayilka ama deegaanka hooyada ee sonkorowga ay sidoo kale la xiriiraan isbeddellada DNA-da ee methylation ee hiddo-wadaha la xiriira horumarka embriyaha, koritaanka, iyo cudurrada dheef-shiid kiimikaadka ee faraca [70�73].

Inkasta oo xogta bini'aadamku ay yar tahay, waxaa jira calaamado muujinaya in buurnaanta aabbaha ay u horseedi karto methylation beddelka hiddo-wadaha la daabacay ee dhallaanka [74], saameyn loo maleynayo in lagu dhexdhexaadiyo isbeddellada epigenetic ee la helo inta lagu jiro spermatogenesis.

ilmaha ku socda cawska iyo dhoobadaDeegaanka dhalmada ka dib: Epigenome-ka waxaa la aasaasay de novo inta lagu jiro korriinka embriyaha, sidaas darteed, deegaanka dhalmada ka hor waxay u badan tahay inuu saameyn weyn ku yeesho epigenome-ka. Si kastaba ha ahaatee, hadda way caddahay in isbeddelku ku dhaco epigenome-ka qaan-gaadhka ah ee ay saameeyaan xaalado kala duwan, oo ay ku jiraan gabowga, soo-gaadhista sunta, iyo isbeddellada cuntada. Tusaale ahaan, isbeddelada methylation DNA ee hiddo-wadaha badan ee murqaha lafaha iyo PGC1A ee nudaha adipose ayaa lagu soo bandhigay jawaabta cunto dufan badan leh [75]. Faragelinta lagu luminayo cufnaanta dufanka jidhka ayaa sidoo kale lala xiriiriyay isbeddellada methylation DNA. Cilmi-baaristu waxay soo warisay in DNA-da methylation profiles ee unugyada adipose [76, 43], unugyada unugyada mononuclear ee dhiigga [64], iyo unugyada muruqa [77] ee bukaannada hore ee cayilan waxay la mid yihiin muuqaalada maadooyinka caatada ah ka dib miisaan lumis. Qalliinka lumitaanka miisaanka ayaa sidoo kale qayb ahaan beddelay methylation-ka methylation-ka ee beerka dufanka leh ee aan alkohol ahayn ee beerka [78] iyo daraasad kale waxay keentay hypomethylation of gen musharaxiin badan oo cayil ah, oo leh saameyn aad u badan oo ku saabsan subcutaneous marka la barbar dhigo omental (visceral) baruurta [79] . Caddaynta ururintu waxay soo jeedinaysaa in faragelinta jimicsiga ay sidoo kale saameyn karto methylation DNA. Inta badan daraasadahan waxaa lagu sameeyay shakhsiyaad caato ah [64�80], laakiin hal daraasad oo jimicsi ah oo ku saabsan maadooyinka T82DM ee cayilan ayaa sidoo kale muujiyay isbeddellada methylation DNA, oo ay ku jiraan gen-yada ku lug leh aashitada dufanka leh iyo gaadiidka gulukooska [2]. Isbeddellada Epigenetic waxay sidoo kale ku dhacaan gabowga, iyo xogtii dhawaa waxay soo jeedinaysaa doorka buurnaanta ee kordhinta iyaga [83, 9, 84]. Cayilku wuxuu dardargeliyay da'da epigenetic ee unugyada beerka, laakiin si ka duwan natiijooyinka kor lagu sharraxay, saameyntani ma noqon mid dib loo rogo ka dib miisaan lumis [85].

Si wada jir ah, caddaynta lagu taageerayo awoodda lagu beddelayo epigenome-ka ee dadka qaangaarka ah ayaa soo jeedinaya in ay jiri karto suurtagalnimada faragelinta nolosha ka dib si loo beddelo ama loo beddelo barnaamijka xun ee epigenetic.

Cabirka Saamaynta iyo Farqiga u dhexeeya Noocyada Nudaha

unugyada xiranIsbeddellada methyl DNA-da ee la xidhiidha buurnaanta ama ay keento cunto ama waxqabadyo qaab nololeed iyo miisaan lumis ayaa guud ahaan dhexdhexaad ah (<15%), in kasta oo tani ay kala duwan tahay iyadoo ku xiran nooca phenotype iyo unug la bartay. Tusaale ahaan, isbeddelada ka weyn 20% ayaa lagu soo warramey nudaha adipose ka dib miisaan lumis [64] iyo ururada ka dhexeeya HIF3A methylation iyo BMI ee nudaha adipose ayaa aad uga cadhooday dhiigga [52].

Ku habboonaanta bayooloji ee isbeddellada methylation ee yar ayaa la iswaydiiyay. Si kastaba ha ahaatee, unugyo ka kooban isku dhafka noocyada unugyada, isbeddel yar oo ku yimaada methylation DNA ayaa laga yaabaa inuu dhab ahaantii ka tarjumo isbeddel weyn oo ku yimaada jajab unug gaar ah. Isku dhafka xogta epigenome ee transcriptome iyo xogta kale ee epigenetic, sida wax ka beddelka histone, waa muhiim, maadaama isbeddellada methyl DNA-da yar ay ka tarjumayaan isbeddello waaweyn oo qaab-dhismeedka chromatin ah waxaana lala xiriirin karaa isbeddello ballaaran oo muujinta hidda-wadaha. Xaaladda genomic waa in sidoo kale la tixgeliyaa; isbeddellada yaryar ee ka dhex jira cunsur sharciyeed sida dhiirrigeliye, xoojiyay, ama dahaye ayaa laga yaabaa inay leeyihiin muhiimad shaqaynaysa. Marka la eego, DMR-yada buurnaanta, iyo sidoo kale gobollada ay saameeyeen soo-gaadhista macaluusha ka hor iyo meQTL ee astaamaha dheef-shiid kiimikaadka ayaa lagu arkay inay is-weydaarsanayaan walxaha xoojiya [8, 43, 68]. Waxaa jira caddayn ah in methylation DNA ee gobollada macluusha la xidhiidha ay runtii saameyn karto dhaqdhaqaaqa kobcinta [68], taageeridda doorka nafaqeynta methylation-ka ee ay keentay isbeddelada habaynta hiddaha.

Xaddidaadda ugu weyn ee daraasado badan oo bini-aadmi ah ayaa ah in calaamadaha epigenetic ay inta badan lagu qiimeeyo dhiigga durugsan, halkii ay ka ahaan lahaayeen unugyada dheef-shiid kiimikaadka khuseeya (Jaantus. 2). Kala duwanaanshaha dhiiga waa arin, maadaama dadyowga unugyadu ay leeyihiin saxiixyo epigenetic oo kala duwan, laakiin algorithms ayaa la sameeyay si loo qiyaaso halabuurka gacanta si looga gudbo dhibaatadan [86]. Waxaa laga yaabaa inay ka sii muhiimsan tahay, calaamadaha epigenetic ee unugyada dhiigga waxaa laga yaabaa inaysan daruuri u sheegin heerka unugyada danta aasaasiga ah. Iyadoo ay taasi jirto, daraasadihii dhawaa waxay bixiyeen caddayn cad oo ku saabsan xiriirka ka dhexeeya calaamadaha epigenetic ee unugyada dhiigga iyo BMI. Xaaladda HIF3A taas oo heerka methylation (beta-value) ee daraasadda dadweynaha ay u dhexeysay 0.14 ~ 0.52, kororka 10% ee methylation waxay la xiriirtay kororka BMI ee 7.8% �[52]. Sidoo kale, farqiga 10% ee PGC1A methylation wuxuu saadaaliyaa ilaa 12% farqiga baruurta [54].

sawir 2Gabagabada

Daraasadda doorka epigenetics ee buurnaanta iyo cudurrada dheef-shiid kiimikaadka ayaa si degdeg ah u balaariyay sannadihii la soo dhaafay, caddayntuna waxay ururinaysaa xiriirka ka dhexeeya isbeddellada epigenetic iyo natiijooyinka caafimaadka dheef-shiid kiimikaadka ee bini'aadamka. Biomarkers epigenetic ee suurtogalka ah ee la xidhiidha buurnaanta iyo caafimaadka dheef-shiid kiimikaadka ayaa sidoo kale ka soo baxay daraasadihii dhawaa. Ansixinta calaamadaha epigenetic ee kooxo badan, xaqiiqda ah in calaamado dhowr ah laga helay hiddo-wadaha oo leh shaqo macquul ah oo cayilka ah iyo horumarinta T2DM, iyo sidoo kale isku-dhafka calaamadaha epigenetic ee buurnaanta la yaqaan iyo T2DM genetic loci waxay xoojisaa caddaynta in ururadani ay yihiin dhab ah. Sababta ilaa hadda way adkeyd in la sameeyo; si kastaba ha ahaatee, iyada oo aan loo eegin in ururadu ay yihiin sababaha, calaamadaha epigenetic ee la aqoonsaday ayaa laga yaabaa inay weli khuseeyaan sida biomarkers buurnaanta iyo khatarta cudurada dheef-shiid kiimikaadka.

Cabbirrada saamaynta ee unugyada si fudud loo heli karo sida dhiiggu waa yar yihiin laakiin waxay u muuqdaan kuwo dib loo soo saari karo inkastoo ay ku kala duwan yihiin qowmiyadaha, nooca unugyada, iyo hababka falanqaynta [51]. Sidoo kale, xitaa isbeddellada methylation DNA ee yaryar ayaa laga yaabaa inay leeyihiin muhiimad bayooloji. Habka is dhexgalka �omics ayaa muhiim u noqon doona in si dheeraad ah loo daah furo isdhexgalka kakan ee ka dhexeeya epigenome, transcriptome, genome, iyo caafimaadka dheef-shiid kiimikaadka. Cilmi-baadhisyo dhaadheer, oo sida ugu habboon u fidinaya jiilal badan, ayaa lama huraan u ah samaynta xidhiidho sababa. Waxaan filan karnaa daraasado badan oo noocaas ah mustaqbalka, laakiin tani waxay qaadan doontaa waqti.

Iyadoo daraasaadka xayawaanku ay sii wadaan inay muujiyaan saameynta nolosha hore nafaqada Soo-gaadhista epigenome-ka iyo caafimaadka dheef-shiid kiimikaadka faraca, xogta bini'aadamka ayaa weli xaddidan. Si kastaba ha ahaatee, cilmi-baarisyo dhawaanahan ayaa soo bandhigay caddayn cad in soo-gaadhista nafaqeynta hoose ee xilliyada gaarka ah ee horumarinta dhalmada ka hor ay la xiriirto isbeddellada methylation ee faraca oo sidaas awgeed ay awood u leeyihiin inay saameyn ku yeeshaan phenotype dadka waaweyn. Daraasadaha xayawaanku waxay noqon doonaan kuwo muhiim ah si loo xaqiijiyo natiijooyinka bini'aadamka ee meel aad loo kantaroolo, caawinta go'aaminta in isbeddellada methylation ee la aqoonsaday ay saameyn ku yeelanayaan caafimaadka dheef-shiid kiimikaadka, iyo in la furfuro hababka hoos yimaada xeerkan isdhexgalka / isbeddelka epigenetic. Aqoonsiga hababka sababa ee ka hooseeya jawaabaha xusuusta dheef-shiid kiimikaadka, qaabka gudbinta saamaynta phenotypic ee jiilasha isdaba jooga ah, heerka saamaynta iyo xasiloonida sifada la kala qaado, iyo aqoonsiga guud ahaan iyo midaynta macnaha kobcinta ayaa sidoo kale ah su'aalo muhiim ah in wax laga qabto. . Midda dambe waxaa badanaa lagu soo koobaa mala-awaalka jawaabta la qabsiga ee saadaasha, ie, ka jawaabista jawi mustaqbalka la filayo oo kordhiya fayoobida dadweynaha. Si kastaba ha ahaatee, mala-awaalkan ayaa si isa soo taraysa la iswaydiiyay maadaama ay jiraan cadaymo kooban oo ku saabsan fayaqabka korodhka nolosha dambe [87].

Marka la soo koobo, natiijooyinku waa kuwo rajo leh, maaddaama isbeddellada epigenetic ay ku xiran yihiin caafimaadka dheef-shiid kiimikaad ee qaangaarka waxayna u dhaqmaan sidii dhexdhexaadiye u dhexeeya beddelka nafaqada dhalmada ka hor iyo khatarta sii kordheysa ee natiijooyinka caafimaadka dheef-shiid kiimikaadka liita. Calaamadaha cusub ee epigenetic ayaa la aqoonsaday kuwaas oo la xidhiidha cabbirada caafimaadka dheef-shiid kiimikaadka. Isku dhafka lakabyada kala duwan ee macluumaadka genomic ayaa ku daray taageero dheeraad ah cilaaqaadka sababaha, waxaana jiray daraasado dheeraad ah oo muujinaya saameynta deegaanka ka hor iyo ka dib dhalmada ee epigenome iyo caafimaadka. In kasta oo ay jiraan su'aalo badan oo muhiim ah, horumarradii hab-raaceed ee dhawaanahan ayaa suurtageliyay noocyada daraasadaha ballaaran ee dadweynaha ku saleysan ee looga baahan doono inay wax ka qabtaan daldaloolada aqoonta. Tobanka sano ee soo socda waxa uu ballan qaadayaa in uu noqon doono xilli hawlo waaweyn laga samaynayo aaggan cilmi-baadhiseed ee muhiimka ah.

Susan J. van Dijk1, Ross L. Tellam2, Janna L. Morrison3, Beverly S. Muhlhausler4,5� iyo Peter L. Molloy1*�

Doonista tartanka

Qorayaashu waxay caddeeyeen in aysan jirin danahooda tartanka.

Qorayaasha
Dhammaan qorayaashu waxay gacan ka geysteen qorista iyo dib u eegista muhiimka ah ee qoraalka, dhammaan qorayaashuna way akhriyeen oo ansixiyeen qoraal-gacmeedka ugu dambeeya.

Qorayaasha� macluumaadka
Beverly S. Muhlhausler iyo Peter L. Molloy waa qorayaasha ugu dambeeya.

Mahadnaq

Shaqadan waxaa taageeray deeq ka timid Sanduuqa Maalgelinta Sayniska iyo Warshadaha (Grant RP03-064). JLM iyo BSM waxaa taageera Ururka Caafimaadka iyo Cilmi-baarista Caafimaadka Qaranka ee Horumarinta Xirfadaha (JLM, APP1066916; BSM, APP1004211). Waxaan u mahadcelineynaa Lance Macaulay iyo Sue Mitchell akhrinta muhiimka ah iyo faallooyinka qoraallada.

Faahfaahinta qoraaga

1CSIRO Cuntada iyo Nafaqada calanka, PO Box 52, North Ryde, NSW 1670, Australia. 2CSIRO Agriculture Flagship, 306 Carmody Road, St Lucia, QLD 4067, Australia. 3Asal ahaan Kooxda Cilmi-baarista Caafimaadka Dadka Waaweyn, Dugsiga Farmashiyaha iyo Sayniska Caafimaadka, Machadka Sansom ee Cilmi-baarista Caafimaadka, Jaamacadda Koonfurta Australia, GPO Box 2471, Adelaide, SA 5001, Australia�4FOODplus Research Centre, Waite Campus, Jaamacadda Adelaide, PMB 1, Glen Osmond, SA 5064, Australia. 5Haweenka iyo Carruurta Machadka Cilmi-baarista Caafimaadka, 72 King William Road, North Adelaide, SA 5006, Australia.

Blank
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