Ngokudabukisayo, lesi sifo esibulalayo se-chromosomal asikho ukwelashwa
Izifo ze-Genetic kanye ne- chromosomal zingaba nemthelela ehlukahlukene futhi engase ibe nomthelela omkhulu empilweni yengane. Imiphumela ingaba yinoma yikuphi ukukhathazeka kwempilo emnene ukuze "ingavumelani nokuphila," okusho ukuhlaselwa okubulalayo.
I-Triploidy iyisifo esiwela ekugcineni kwesikhala. Iningi lamantombazane ane-triploidy ayafa ngaphambi kokuzalwa futhi labo abenza ukuba kube yilabo abaqaphele ukuhlala ezinyangeni zokuqala eziyisithupha zokuphila.
Yisho ukuthini i-Triploidy
Abantu babantu ngamunye kufanele babe nama-chromosomes angu-46 (amabili amabili). Umuntu uthola ingxenye yengxenye ngayinye yama-chromosomes kusuka kumzali ngamunye. I-triploidy itholakala ukuthi ingane inamakhophi amathathu e-chromosome ngayinye esitokisini ngasinye, kunokubili, okwenza inani lama-chromosomes angu-69. I-triploidy ingabangela ukuthi kusuka eqanda elilodwa elikhuliswe izidakamizwa ezimbili noma kusuka ephupheni lokuhlukaniswa kweseli okubangela ukuthi iqanda noma isidoda sibe nama-chromosomes angu-46 ngesikhathi sokukhulelwa.
Izinhlobo
Amacala amaningi okuhamba nge-triploidy afaka "triploidy" egcwele, okusho ukuthi wonke amangqamuzana omzimba athathwe ngendlela efanayo. Ezimweni ezingavamile, i-triploidy ingaba "ngomsakazo," okusho ukuthi amanye amangqamuzana omzimba anamakhophi amathathu e-chromosome ngayinye kanti abanye baneqoqo elivamile lama-chromosomes angu-46. Kunobunye ubufakazi bokuthi abantu abane-triploidy yama-mosai bangase bangathinteki kakhulu yi-disorder kunelezo ezine-triploidy egcwele. Kodwa ngisho ne-triploidy yama-mosai, ukubikezela akulungile.
Ubudlelwane nokukhulelwa komzimba okuhlukile
Okunye ukukhulelwa okuthintekile nge-triploidy kuzophinde kuthinteke nge- molecule ye-hydatidiform eyingxenye (ukukhulelwa okuncane kancane ), okusho ukuthi kukhona i-placenta engavamile engabangela umama engozini yokuphila . Kodwa-ke, akuzona zonke izimo ze-triploidy ezizoba ukukhulelwa kwe-molar.
Kukhona ukusola ukuthi i-triploidy ephuma ku-sperm ezimbili efaka iqanda elilodwa lingase libe nomthelela wokukhulelwa kancane kancane kune-triploidy ehilela iqanda noma isidoda esinama-chromosomes angu-46 kusukela ekuqaleni. Kodwa lokhu akuzange kuboniswe.
Ukuxilongwa
I-triploidy ingatholakala ngokuhlola kuphela izakhi zofuzo-okusho amniocentesis , ukuhlolwa kwegazi kwengane esanda kuzalwa, noma i-karyotyping of tishu kusukela ekukhulelwe kokukhulelwa. Ukuhlolwa kokuhlola njenge- ultrasound nokuhlola kwe-alphafetoprotein kungabonisa izimpawu zokuxwayisa ze-triploidy. Kodwa lezi zivivinyo azikwazi ukuqinisekisa ukuxilongwa kwe-triploidy. Amazinga we-hCG aphezulu angatholakala kwezinye ukukhulelwa nge-triploidy, futhi i-ultrasound ingabonisa i-placenta yesici ehambisana nokukhulelwa okuncane.
Isibikezelo
Ngokudabukisayo, i-triploidy ihlale ibulala futhi ayikho ikhambi noma ukwelashwa kwalesi simo. Njengoba kukhonjisiwe ngenhla, cishe bonke (abangaphezu kuka-99%) abantwana abane triploidy abaphuthelwe kabi noma abangakazalwa. Kulabo abazalwa bephila, iningi lifa emahoreni noma ezinsukwini emva kokuzalwa. Izingane ezimbalwa ezinama-triploidy ziye zahlala izinyanga ezinhlanu noma ngaphezulu. Kodwa lezi zimbiko azivamile, futhi ngokuvamile, izinsana ezisinda isikhathi eside zine-triploidy yama-mosaic, kunokuba i-triploidy egcwele.
Izingane ezithintekile zivame ukubhekana nokukhubazeka okuningi kokuzalwa kanye nomkhawulo wokukhula okukhulu.
Ingozi Yokuphindaphindiwe
Abacwaningi abatholanga noma yiziphi izinkinga ezibonakalayo zokukhulelwa ezithinteka yi-triploidy. Ngisho neminyaka yokubeletha ayibonakali iyingozi. Inombolo encane yabesifazane ingase ibe nokuhlukunyezwa okuphindaphindiwe okuthintwa yi-triploidy. Kodwa ezimweni eziningi, i-triploidy ivela ngokungahleliwe futhi yinkinga yesikhathi esisodwa engaphenduki esikhathini esizayo sokukhulelwa. Uma uthola ukuxilongwa kwe-triploidy kulandela ukuhlolwa kwezicubu kusuka kokukhulelwa kwesisu noma ukuzalwa komzimba, izinkinga zalo ziphinde zenzeke.
Uma Ingane Yakho Iqukethe I-triploidy
Ulwazi oluningi lokudideka mayelana ne-triploidy lungaphandle, ngakho-ke uma ngabe ingane yakho ithole ukuthi unesimo ngesikhathi ukhulelwe noma njengengane esanda kuzalwa, cishe ubhukuda nemizwelo, kufaka phakathi ukuphazamiseka, ukudideka nokudabuka. Into yokuqala okudingeka ukwazi ukuthi awuzange wenze lutho ukuze kubangele ukuthi lokhu kwenzeke, futhi akukho lutho olungaluvimbela ukuba lungenzeki. Kuhle ukulila (noma ukuzizwa noma yini enye ongayithola).
Uma ingane yakho itholwe nge-triploidy nge-amniocentesis (okuvame ukuqhutshwa phakathi kweviki 15 nesonto 20 lokukhulelwa), cishe uzocelwa ukuthi ngabe ufisa ukuqhubeka nokukhulelwa. Lokhu kukhethwa ngabanye futhi kufanele ukwenze okukusebenzelayo. Abanye besifazane bakhetha ukuqeda ukukhulelwa okubulalayo , kanti abanye bakhetha ukuqhubeka nokukhulelwa, noma ngabe bayazi umphumela odindelekile. (Qaphela ukuthi uma ukukhulelwa kwakho kuthintwa yi- molecule ye-hydatidiform ye-partial , ayikho ithuba lomntwana okwenza kube yilapho ezalwa ephila. Udokotela wakho uzokuncoma ukuqeda ukuvimbela izinkinga ezinkulu ezingathinta impilo yakho.)
Uma ukuxilongwa kwe-triploidy kuza ngemuva kokuba ingane yakho isele izalwa, kungumqondo omuhle ukukhuluma nomeluleki wezakhi zofuzo ngalokho okufanele ukwenze, ngokunakekela ingane yakho. Esikhathini esiningi, ukwelashwa Kunconywa ukuhlinzeka ukunakekelwa kokududuza kunokuba uphishekele noma yikuphi ukungenelela okukhulu. Kunamaqembu amaningi asekela abazali bezingane ezinenkinga enkulu ye-chromosomal, futhi ungathola ukuthi lokhu kududuza njengoba ubhekana nalezi zindaba.
Imithombo:
I-Brancati F, i-Mingarelli R, i-Dallapiccola B. I-triploidy ejwayelekile yomsuka womama. Eur J Hum Genet 2003; 11: 972-974.
I-Triploidy. I-Texas State Health Dept. Ukuhlukunyezwa Kwezingqinamba Zezingozi Zokuzalwa. http://www.dshs.state.tx.us/birthdefects/risk/risk24-triploidy.shtm