Funga nezvazvo, tese tinofunga kuti sero rega rega mumuviri wako rine DNA yako, handiti? Ndicho chinhu chikuru chatinoziva nezvemajini. Asi, kashoma, muviri wemunhu unogona kuva nemasero ane rudzi rwechipiri rweDNA risiri rake, uye izvo zvakasiyana zvachose. Zvinonzwika zvisinganzwisisike, handiti? Mukurapa, tinodana chirwere ichi chinoshamisa kuti 'Chimerism'. Usazvidya moyo, hachisi chirwere. Ngationei kuti chii chaizvo.
Chii chinonzi 'Chimerism'?
Zvichitaurwa zviri nyore, chimerism kuvapo kwemasero maviri mumuviri wemunhu mumwe chete anobva kuvanhu vaviri vakasiyana majini. Izvi zvinoreva kuti mamwe masero mumuviri wako anogona kunge aine rudzi rumwe rweDNA, nepo mamwe masero anogona kunge aine rudzi rwakasiyana zvachose rweDNA.
Imwe yenzira huru dzekuita izvi ndeyekubereka mapatya. Fungidzira amai vakatakura mapatya mudumbu ravo. Mumavhiki mashoma ekutanga ekuzvitakura, rimwe remazai rinogona kutadza kukura nekunyangarika nekuda kwechimwe chikonzero. Izvi zvinonzi Vanishing Twin Syndrome. Kana izvi zvikaitika, masero anobva mudumbu risingachaonekwi anotorwa nemwana ari kukura zvakanaka. Saka, mwana achava nemasero ake uye masero anobva kuhama yake inoshaya muhupenyu hwake hwese.
Mhando dzemasero anosangana nenzira iyi dzakasiyana. Kazhinji, musiyano uyu unoonekwa muropa. Unonzi 'blood chimerism'. Izvi zvinodaro nekuti masero eropa anoumbwa mumongo wemapfupa akasimba uye anogona kupfuura nepamusana peplacenta zviri nyore. Sekutsvagurudza kwakaitwa, anenge 8% yemapatya akajairwa anogona kuva nechirwere ichi. Pakati pemapatya matatu, mukana uyu unowedzera kusvika 21%.
Ndezvipi zvinokonzera chimerism?
Sezvatakambokurukura, vamwe vanhu vanozvarwa vaine chirwere ichi. Zvisinei, mumwe munhu anogona kuva nepfungwa yekuti chimerism ichaitika muhupenyu hwake. Pane zvikonzero zviviri zvikuru zveizvi. Ngatizvitsanangure seizvi.
| Chikonzero | Tsananguro yekuti zvinoitika sei |
|---|---|
| Chimerism yekuzvarwa nayo | Iyi ndiyo 'Vanishing Twin Syndrome' yatakambotaura nezvayo. Imwe embryo inorasika mudumbu uye masero ayo anotorwa nerimwe embryo, zvichiita kuti mhando mbiri dzemasero dzirambe dziri mumuviri kweupenyu hwese. |
| Chimerism Yakawanikwa | Izvi zvinoitwa senzira yekurapa inoponesa hupenyu. Semuenzaniso, funga nezvekuisirwa nhengo . Kana munhu akagamuchira itsvo kubva kune mumwe munhu ane hutano, itsvo itsva inoshanda neDNA yemupi. Mupi anobva ava neDNA yake uye DNA yemupi. Ndizvo zvakafanana nekuisirwa mupfupa . Muchiitiko ichi, mupfupa wemupi ane hutano unoisirwa panzvimbo pemupfupa une chirwere. Zvadaro masero ese matsva eropa anogadzirwa kubva kuDNA yemupi. Izvi zvinogona kutochinja rudzi rweropa remunhu. |
Pane zviratidzo zveizvi here?
Mashoko akanaka ndeekuti vanhu vazhinji vane chimerism havana zviratidzo. Vanhu vazhinji vanorarama hupenyu hwavo hwese vasingazive kuti vane chirwere ichi. Nekuti hapana bvunzo chaiyo yechirwere ichi, hazviwanzo kuwanikwa chirwere ichi.
Zvisinei, dzimwe nguva izvi zvinogona kukonzera matambudziko asingafungidzike, kunyanya nekuongororwa kweDNA.
Fungidzira, baba vanoita bvunzo yeDNA kuti vasimbise kuti mwana ndewababa here. Asi mhedzisiro yacho inobva yabuda yekuti havasi ivo baba vemwana. Vane chokwadi che100% chekuti mwana wavo. Chinogona kuitika pano ndechekuti kana baba vachirwara nechirwere chechimerism, DNA haisi muropa ravo kana mate, asi mumasero avo ekubereka (sperm). IDNA yemukoma akarasika mudumbu. Zvadaro mwana ane hukama naye semwana wemumwe wevakoma vake, kureva muzukuru kana muzukuru.
Zvinhu zvakafanana zvinogona kuitikawo kuna amai. Nokudaro, kazhinji, chimerism inoonekwa semugumisiro wekusawirirana kusingatarisirwi panguva yekuongororwa kweDNA seizvi.
Mamiriro ezvinhu aya anogona kukonzera matambudziko akakomba here?
Chimerism hachisi chirwere kana chirwere chine njodzi, asi chinogona kukonzera mamwe matambudziko kana usingazvizive.
- Nyaya Dzemutemo: Sezvambotaurwa, mhinduro dzisina kururama dzebvunzo dzemubereki dzinogona kukonzera nyaya huru dzemutemo maererano nekuchengeta mwana. Kwave nezviitiko zvakawanda zvakadaro zvakashumwa pasi rose.
- Matambudziko epfungwa:Vamwe vanhu vanogona kusangana nematambudziko epfungwa uye kusaziva kuti vane nhengo dzemuviri wemumwe munhu.
- Kukosha kwekurapa: Zvingave zvakakosha kuziva nezvechirwere ichi panguva yekubatanidza nyama usati waisa nhengo.
Asi vanaamai havafaniri kunetseka nezve 'vanishing twin syndrome'. Kana zvikaitika mumwedzi mitatu yekutanga yekuzvitakura, hazvizokuvadzi amai kana mwana ane hutano. Amai vanogona kusaona zviratidzo kunze kwekubuda ropa zvishoma.
Mharidzo Yekuenda Nayo Kumba
- Chimerism kuvapo kwemarudzi maviri eDNA muchisikwa chimwe chete. Izvi zvinowanzoitika kuburikidza nekutorwa kwemasero kubva kumapatya ari mudumbu kana kuburikidza nekuisirwa nhengo/mubofu.
- Ichi hachisi chirwere chine njodzi. Vanhu vazhinji vane chimerism havana zviratidzo.
- Dambudziko guru rinomuka nekuongororwa kweDNA, kunyanya muzvinhu zvakaita sekuongororwa kwebaba, uko mhedzisiro inogona kusawirirana.
- Kana ukambova nedambudziko risingatsananguriki nemhedzisiro yekuongororwa kweDNA, taura nachiremba wako nezve mukana wekuti chimerism ivepo.
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