Kunyanya Kakawanda Asi Zvichida Zvimwe Nenzira Dzakabatsiri Yokubereka
Utatu hutatu vana vanotakurwa muchizvaro panguva yekuzvitakura kamwe. Kufanana nemapatya, katatu uye mamwe mahedheni akakwirira-akawanda anogona kugoverwa ne zygosity yavo. Kunyange zvazvo vanhu vazhinji vanoziva nemashoko okuti "zvakafanana" uye "hama" mukutsanangura mawanda, uye shandisa mazwi aya kuti ujekese kana mapatya kana katatu achiita saizvozvowo, zvavari kunyatsoreva ndezvekuti mawanda akaumba sei.
Nhamba mitatu yakawanda inonzi trizygotic, zvinoreva kuti munhu mumwe nomumwe anogadzira kubva kune zygote yakasiyana, kana mazai / mbeu inoungana. Zvinowanzotsanangurwa se "fraternal" multiples uye kugovana zvakafanana kufanana nevana vemunin'ina. Zvisinei, hazvisi zvisizvo kuti katatu kuve dizygotic , iyo inowanikwa apo mazai maviri anogadzirwa nemurume, uye imwe yamazai anogadzirwa akapararira kuva maviri. Chaizvoizvo, zviviri zvezvikamu zvitatu zvinonzi monozygotic (zvakafanana) mapatya, kugovana zvakafanana DNA maitiro, nepo yechitatu yakawanda yakagadzirwa nehumwe mazai / humi hune humwe uye ine humwe hutano hwakasiyana kubva kune mamwe maviri katatu.
Monozygotic Triplets
Hazviwanzoiti katatu kuti zvive zvakakwana monozygotic, zvinoreva kuti vana vatatu vakaumbwa kubva kune rimwe chete rinoparadzanisa nzira nhatu kana kuparadzaniswa kuva maviri uye imwe yezvikamu zviviri zvakaparadzaniswazve, pakupedzisira zvinoguma nemambrus matatu ane DNA yakafanana maitiro.
Monozygotic triplets nguva dzose inomukomana akafanana, kana vakomana vose kana vose vasikana. Dzimwe monozygotic katatu zvakanyatsosvika mana apo imwe embryo yakange yanyangarika kana yakadzorerwa zvakare.
Monozygotic triplet pamuviri inotakura mungozi yekubata monozygotic pamwe neparcenta yakagoverwa, pamwe nekuwedzereka kwehutachiwana hutatu.
Mimba yemhando iyi inowanzosangana nezvinetso zvakadai se -pre-eclampsia , preterm labor , uye kunyange kuwedzerwa ropa.
Nemhaka yehutachiwana, katatu zvakafanana zvinowanzoita misoro, somuenzaniso apo monozygotic triplet pamuviri yakabvira mushure mekunge imwe embryo yakasimwa mune imwe nzira in-vitro. Allison Penn akabereka Logan, Eli, naCollin muna March 2008. Vanachiremba varo vakatsanangura mamiriro acho ezvinhu semuongorori chete unozivikanwa wekunge imwe embryo kuendeswa ichiita katatu.
Ndeapi Odds?
Kutsvakurudza kunopararira pamamiriro ezvinhu emonozygotic katatu. Nhoroondo yegore ra2012 yehutano hwakanaka yevatatu vatatu vakafanana nevana vatatu vakaberekwa vanotsanangura zvinowanzoitika kune 1 mu100 000 vakaberekwa varipo, uye vazhinji vezviitiko zvinonzi vakaberekwa kuburikidza nehutano hwekubatsira kubereka. Iyo mapepa yakaratidza kuti dzimwe mimwe mimwe minomwe yaizivikanwa iyo yakanga ichinyatsogadzirwa. A 2015 mapepa anoratidza kuwandisa kwezviitiko zvezvikamu zvitatu zvakafanana kakawanda kakawanda kakawanda nekubatsira maitiro ekuberekorora pane kutora pamuviri kamwechete asi zvisingawanzoitiki.
Zvichakadaro, kuongororwa kunoonekwa muhurukuro yakakurumbira kubva kune 1 mu 60 000 uye 1 mu 200 mamiriyoni. Izvi zvinogona kunge zvichiitika kune dzimwe nhamba dzinoratidza chiyero chekufungidzirwa / kutora pamuviri panzvimbo pane kuberekwa kwetatu kunorarama.
> Sources:
> Gandham S, Ogueh O. Kuparadzanisa Monochorionic Triplet Kuberekwa NeNo Fetal Anomaly kana Rush-Fetal Transfusion. BMJ Case Reports . 2012; 2012 (nov22 2). doi: 10.1136 / bcr-2012-007114.
> Gurunath S, Makam A, Vinekar S, Biliangady R. Monochorionic Triamniotic Triplets Inotevera Kushanda muVivro Fertilization uye Blastocyst Transfer. Zvinyorwa zveScience Reproductive Sciences . 2015; 8 (1): 54. doi: 10.4103 / 0974-1208.153131.