Mun san cewa jikinmu yana da tarin ƙwayoyin halitta. Yawanci muna tunanin kowanne daga cikin waɗannan ƙwayoyin halitta yana da irin wannan saitin bayanai na kwayoyin halitta, kamar kwafi da yawa na tsarin zane iri ɗaya. Amma wani lokacin wannan na iya ɗan bambanta. Ka yi tunanin cewa wasu ƙwayoyin halitta a jikinka suna da tsarin kwayoyin halitta iri ɗaya, kuma wasu ƙwayoyin halitta suna da tsarin kwayoyin halitta daban-daban. Wannan shine abin da muke kira mosaicism a magani.
A taƙaice dai, menene tsarin Mosaicism?
A taƙaice dai, Mosaicism shine kasancewar ƙungiyoyin ƙwayoyin halitta guda biyu ko fiye daban-daban a jikin mutum ɗaya. Wannan kamar fasahar mosaic ne. Kamar yadda ƙananan tayal masu launuka da siffofi daban-daban suka haɗu don ƙirƙirar kyakkyawan hoto, abin da ke faruwa a nan shi ne cewa ƙwayoyin halitta masu siffar kwayoyin halitta daban-daban sun haɗu don samar da jiki ɗaya.
Kyakkyawan misali na wannan shine bambancin adadin ƙwayoyin halittar. Mutum mai lafiya yana da ƙwayoyin halittar halittar chromosome 46 a kowace ƙwayar halitta. Duk da haka, a cikin mutumin da ke da mosaicism, wasu ƙwayoyin halittar suna da ƙwayoyin halittar chromosome 46, yayin da wani rukuni na ƙwayoyin halittar na iya samun lamba daban, kamar ƙwayoyin halittar chromosome 47 ko 45. Wannan bambancin kwayoyin halitta na iya haifar da wasu matsalolin lafiya a lokacin haihuwa, kuma wani lokacin matsaloli daga baya a rayuwa.
Waɗanne cututtuka za a iya dangantawa da mosaicism?
Tsarin Mosaicism na iya haifar da cututtuka iri-iri. Amma tasirin wannan ya bambanta sosai daga mutum zuwa mutum. Ya dogara da kashi na ƙwayoyin halitta marasa kyau a cikin jiki da kuma a cikin waɗanne gabobin ne waɗannan ƙwayoyin suke. Bari mu kalli wasu manyan cututtukan da ke da alaƙa da wannan.
| Yanayi | Tasiri da fasaloli na gama gari |
|---|---|
| Ciwon Mosaic Down | Wannan wani nau'i ne na Down syndrome. Yana iya haifar da nakasa a hankali, raunin tsoka, da kuma fuska mai faɗi. Wasu yara kuma suna iya samun cututtukan zuciya, matsalolin narkewar abinci, da matsalolin thyroid. |
| Pallister-Killan mosaic ciwo | Ko a cikin wannan yanayi, raunin tsoka, jinkirin tunani, siririn gashi, launin fata mara kyau, da sauran lahani na haihuwa ana ganinsu. |
| Ciwon SOX2 na rashin lafiyar ido | Wannan wata cuta ce da ba kasafai ake samunta ba wadda za ta iya haifar da matsaloli masu tsanani kamar haihuwar jariri ba tare da idanu ba, farfadiya, matsalolin ci gaban kwakwalwa, da kuma jinkirin ci gaban jiki. |
| Trisomy 18 (Mosaic) | Wannan yanayi ne da girman jaririn ke raguwa a cikin mahaifa. Ana iya haihuwar jaririn da ƙaramin kai fiye da na al'ada, lahani na zuciya, da sauran lahani na gabobi. Abin takaici, jarirai da yawa da ke da wannan yanayin ba sa rayuwa fiye da shekara ta farko. |
Bugu da ƙari, mosaicism na iya alaƙa da wasu matsalolin chromosomal, kamar su cutar Turner, da wasu nau'ikan ciwon daji, musamman cututtukan jini.
Me yasa wannan yanayin ya faru?
Wannan a zahiri yana faruwa ne a mafi yawan lokuta ta hanyar bazata. Wannan ba laifin kowa bane. Ka yi tunanin, bayan an yi wa ƙwan uwa ta hanyar maniyyin uba, ƙwayar halitta ta farko (zygote) da ke samuwa ta fara rabuwa. Ta wannan hanyar, yayin da ƙwayar halitta ɗaya ta rabu biyu, biyu, huɗu, huɗu, takwas, da sauransu, tayin ya girma.
A lokacin wannan rarrabuwar ƙwayoyin halitta, kowace sabuwar ƙwayar halitta dole ne ta sami ainihin kwafin ƙwayoyin halittar tantanin halitta na asali. Amma ba kasafai ake samun kuskure ba yayin wannan aikin kwafi. Kuskuren na iya sa sabuwar ƙwayar tantanin ta sami adadin ƙwayoyin halittar daban-daban. Lokacin da ƙwayar halittar da ba ta da kyau ta ci gaba da rabuwa, jiki yana samar da tsarar ƙwayoyin halitta tare da yanayin kwayoyin halitta mara kyau. Ƙwayoyin halitta na asali kuma masu lafiya suna ci gaba da rabuwa, ta yadda daga ƙarshe jiki yana da saitin ƙwayoyin halitta guda biyu.
- Babban matakin mosaicism: Idan wannan lahani ya faru da wuri a lokacin ci gaban tayi, babban kashi (50% ko fiye) na ƙwayoyin halitta marasa kyau suna yaɗuwa a ko'ina cikin jiki.
- Ƙarfin mosaicism: Idan lahani ya faru a wani mataki na gaba na ci gaba, adadin ƙwayoyin da abin ya shafa ƙanƙanta ne.
Akwai manyan nau'ikan mosaicism?
Eh, ana iya rarraba Mosaicism zuwa manyan nau'o'i da dama. Fahimtar wannan zai iya taimaka maka ka fahimci yanayin yanayin.
| Rarrabawa | Bayani mai sauƙi |
|---|---|
| Ya danganta da nau'in ƙwayar da abin ya shafa | |
| Somatic Mosaicism | A nan, canjin kwayoyin halitta yana faruwa ne kawai a cikin ƙwayoyin halitta na jiki (ƙwayoyin somatic). Wato, ƙwayoyin halitta a cikin gabobin jiki kamar fata, kwakwalwa, da zuciya. Abu mafi mahimmanci, wannan yanayin ba ya shafar ƙwayoyin haihuwa (ƙwai da maniyyi), don haka ba a gado shi daga iyaye zuwa ga yara ba. |
| Tsarin Mosaic na Germline | Sauyin kwayoyin halitta yana faruwa ne kawai a cikin ƙwayoyin halittar germline, wato, a cikin ƙwai ko maniyyi. Saboda haka, ko da iyaye ba su da wata alama, 'ya'yansu suna cikin haɗarin gadon wannan yanayin kwayoyin halitta. |
| Dangane da yaduwar jiki a jiki | |
| Tsarin Mosaic na Gabaɗaya | A nan, ƙwayoyin halitta marasa kyau suna nan a duk jikin yaron. |
| Tsarin Mosaic Mai Takamaiman Bayani | A nan, ba a samun ƙwayoyin halitta marasa kyau a ko'ina cikin jiki, amma an iyakance su ga wani takamaiman gabobi ko kyallen jiki, kamar kwakwalwa, zuciya, ko hanta. Misali, akwai wata cuta da ake kira Confined Placental Mosaicism, wadda aka iyakance ga mahaifa. |
Ta yaya likitoci ke gano wannan yanayin?
Ana buƙatar gwajin kwayoyin halitta na musamman don gano mosaicism.
- Ganewar Haihuwa Kafin Haihuwa: Idan akwai zargin cewa jariri yana da Mosaicism a lokacin daukar ciki, likitoci na iya ba da shawarar gwaje-gwaje na musamman. Amniocentesis (gwajin ruwan amniotic da ke kewaye da jaririn) daGwajin Chorionic Villus Sampling (CVS) (duba ƙaramin yanki na nama daga mahaifa) yana ɗaya daga cikin irin waɗannan gwaje-gwajen.
- Gwaji bayan haihuwa: Bayan an haifi jariri, ana iya gano cutar ta hanyar gwajin jini, gwajin fata, da sauransu. Wani lokaci, yana iya zama dole a gwada nau'ikan nama guda biyu daban-daban don tabbatar da ainihin yanayin.
Musamman a cikin hanyoyi kamar hadi a cikin vitro (IVF), ana iya gwada lahani na kwayoyin halitta ta hanyar gwaji da ake kira Preimplantation Genetic Screening (PGS) kafin a dasa tayi a cikin mahaifar uwa.
Akwai magani ga mosaicism?
Wannan matsala ce da mutane da yawa ke fuskanta. A gaskiya ma, a halin yanzu babu wata hanyar da za a iya mayar da martani ko warkar da yanayin kwayoyin halitta da ake kira Mosaicism. Wato, ba zai yiwu a kawar da ƙwayoyin halitta marasa kyau a maye gurbinsu da ƙwayoyin halitta na yau da kullun ba.
Amma, mafi mahimmanci, akwai hanyoyi daban-daban don magance matsalolin lafiya da alamun da Mosaicism ke haifarwa.
Zaɓuɓɓukan magani sun dogara ne akan yanayin da ke shafar kowane mutum. Misali, yaro mai fama da ciwon Mosaic Down syndrome na iya amfana daga maganin magana da motsa jiki don taimaka masa ya haɓaka da inganta iyawarsa. Idan akwai ciwon zuciya, ana ba da magani ne don magance matsalar da ke haifar da hakan. Wannan yana nufin cewa maganin ba a yi shi ne don Mosaicism ba, amma don sakamakon wannan yanayin. Yana da mahimmanci a yi magana da likitanka game da mafi kyawun tsarin magani a gare ku ko ɗanku.
Yaya makomar za ta kasance da wannan yanayin?
Yana da wuya a yi hasashen hasashen wani da ke da mosaicism, domin ya dogara ne da dalilai da yawa. Manyan sun haɗa da:
- Nawa ne kashi na ƙwayoyin halitta marasa kyau? (Kashi na ƙwayoyin halitta marasa kyau)
- Wadanne gabobi/nama ne suka shafi?
- Tsananin yanayin da ke tattare da shi.
Mutumin da ke da ƙarancin kashi na ƙwayoyin halitta marasa kyau (ƙananan matakan mosaicism) zai iya rayuwa cikin koshin lafiya ba tare da wata alama ba. Wani mutum kuma yana iya samun ƙananan matsaloli. Idan kashi na ƙwayoyin halitta marasa kyau ya yi yawa kuma manyan gabobin jiki kamar kwakwalwa da zuciya suka shafa, matsalolin na iya ƙaruwa.
Saboda haka, maimakon jin tsoro ba tare da wata matsala ba game da wannan, yana da matuƙar muhimmanci a ga ƙwararre, a ba da shawara kan kwayoyin halitta , sannan a fahimci yanayin da ke tsakaninku ko ɗanku.
Saƙon Ɗauka Gida
- Tsarin Mosaicism shine kasancewar fiye da rukuni ɗaya na ƙwayoyin halitta daban-daban a jikin mutum ɗaya.
- Wannan ba laifin kowa ba ne, sai dai kuskuren da ke faruwa a lokacin rabuwar ƙwayoyin halitta a farkon matakan ci gaban tayi.
- Tasirin mosaicism ya bambanta sosai daga mutum zuwa mutum. Wasu ba za su iya shafar su ba, yayin da wasu kuma za su iya haifar da matsalolin lafiya masu tsanani.
- Duk da cewa babu maganin wannan matsalar, akwai magunguna masu inganci don magance alamun cutar da matsalolin lafiya da ke tattare da ita.
- Idan kai ko wani a cikin iyalinka yana da wata shakka ko tambayoyi game da koyarwar Mosaic, mafi kyawun abin da za a yi shi ne a tattauna shi a fili da likitanka .
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