Lapho Ukhula Lwabantu Lwamadoda, Uma Lwenqaba, Nengozi Yobungane Abadala
Ukuzala komuntu kuyashintsha ngokuguga. Ungase uthole umqondo wokuthi iminyaka yobudala yindaba kuphela ekuzalweni kwesifazane . Ngenkathi ukuguqulwa kokuzala kunomthelela kunabesifazane, amadoda anamawashi wezinto eziphilayo, futhi.
Ngabe Inhlanhla Yesilisa Yenzalo Nini Futhi Yehla?
Olunye ucwaningo olwenziwa e-Soroka University e-Israel lubukeka ikhwalithi yesilisa kumadoda ajwayelekile futhi kuqhathaniswa ubuningi kanye nekhwalithi yezinja kuminyaka yamadoda.
Ucwaningo lwabheka yonke into yokuhlaziywa kwesilisa , okubandakanya ukuthi balala kaningi kangakanani. Lokhu kubalulekile ukucabangela ngoba ukuvimbela ngokocansi kunganciphisa ikhwalithi yesimiso. Ubulili obuvamile budala isidoda esinempilo.
Abacwaningi bathola ukuthi inani lamabele liphakathi kweminyaka engama-30 no-35. (Kungabe lokhu kungaba yindlela yemvelo yokuqinisekisa ukuthi umbhangqwana ukhulelwa ngaphambi kokuzala owesifazane uqala ukwehla eminyakeni yobudala engama-35?) Ngakolunye uhlangothi lomthamo, inqwaba yezinyosi zitholakala ukuba ngaphansi kakhulu ngemva kweminyaka engu-55.
Umdala Omuntu, Weaker The Swimmers
Lolu cwaningo luphinde lwathola ukuthi ukulimala kwesidoda kushintshiwe ngokukhula. Isidakamizwa sezinambuzane yindlela umuthi uhamba ngayo.
I-sperm motility yayingcono ngaphambi kweminyaka engama-25 futhi iphansi kakhulu ngemva kweminyaka engu-55. Eqinisweni, uma kuqhathaniswa nenombolo "yokubhukuda okuhle" insimu emadodeni aphakathi kweminyaka engama-30 kuya ku-35 namadoda angaphezu kweminyaka engu-55 ubudala, isisu se-motility sehle ngamaphesenti angu-54.
Lezi zinguquko eziqinile azikwazanga ukusola ekuziphatheni ngokocansi, okulandelwe ekutadisheni.
Ukwandisa Ingozi Yezinkinga Zama-Genetic Kwabesilisa Abadala
Ngaphandle kwesimiso esincane, izinga leminyaka liphinde lithinte izinga lofuzo lwesilisa wesilisa.
Esicwaningweni esenziwa e-Lawrence Livermore National Laboratory (LLNL) naseYunivesithi yaseCalifornia eBerkeley, abacwaningi bathola ukuthi ukukhubazeka kwezakhi zofuzo kukhula kwamadoda kuneminyaka emadodeni.
Lezi zifo ezingalungile zofuzo zingabangela:
- kunciphise ukuzala
- amathuba okwanda kwesisu
- ingozi eyengeziwe yokuzalwa okwamanje
- ingozi eyengeziwe yokwehluleka okuthile kokuzalwa
Abososayensi babika ukuthi amadoda amadala awagcini nje engozini yokungabikho. Futhi baningi amathuba okudlulisela izinkinga zabo zofuzo ezinganeni zabo.
Inhlanganisela yobudala besifazane kanye nobudala besilisa ingaqhubeka nokwandisa ingozi yokukhubazeka kokuzalwa. Thatha isibonelo ngengozi ye-Down syndrome. Kwabesifazane, ingozi yokuba nengane nge-Down syndrome yanda ngokukhula.
Ekucwaningweni kwabantwana abangaphezu kuka-3 000, abacwaningi bathola ukuthi uma owesifazane eneminyaka engu-35 noma ngaphezulu, iminyaka yobudala yendoda ibaluleke kakhulu.
Lokhu kwakuyiqiniso ikakhulukazi uma owesifazane eneminyaka engu-40 noma ngaphezulu. Kuleli qembu, amaphesenti angu-50 wezingane ezine-Down syndrome athola ukuthi ukukhubazeka kofuzo kuhlangothi lwababa babo.
I-Down syndrome akuyona yingozi kuphela ekhuphuka ngeminyaka yobudala.
Obaba asebekhulile banamathuba okuba nezingane ezine:
- i-autism
- ukucindezeleka kwe-bipolar
- schizophrenia
- i-achondroplasia, uhlobo oluthile lwama-dwarfism
i-leukemia yengane
Cabanga ngobudala bomama nabesilisa ndawonye
Kudinga ababili ukwenza ingane. Ngenkathi singagxila eminyakeni yobudala bomuntu nonyaka wesifazane, kubalulekile ukucabangela ukuthi bahlangana kanjani.
Ucwaningo lwamabhangqwana angu-782 luphenyisisa ukuthi iziphi izingqinamba zokukhulelwa zazisekelwe eminyakeni yobudala nokuthi ngabe babe nobulili ngosuku lwabo oluvundile kakhulu (ngaphambi nje kokuvota.)
Bathole ukwehla okucacile kokuzala okuncike eminyakeni yobudala besifazane.
Kwabesifazane abaneminyaka engama-19 kuya ku-26, babe nethuba elingamaphesenti angu-50 lokukhulelwa ngosuku lwabo oluvundile. Abesifazane abaneminyaka engama-35 kuya ku-39 banamathuba angu-29 kuphela.
Kodwa-ke, yini ezithakazelisayo kakhulu lapha ukuthi umthelela wesilisa unomthelela. Kulaba besifazane abaneminyaka yobudala engama-35 kuya ku-39, uma le ndoda yayineminyaka emihlanu noma ngaphezulu kunomuntu wesifazane, izimpikiswano zabo zokukhulelwa zahlehlela kuma-15%. Izinkinga eziningi kakhulu zazinqunywa ngesigamu.
Ukuphumelela komuntu wesilisa nobudala be-IVF
Kuthiwani ngendima yenkathi yesilisa kanye nempumelelo yokwelashwa kwe-IVF ? Ukucwaninga kwasekuqaleni kuye kwabonisa ukuthi izinga lokuphumelela kwe-IVF lingaba nomthelela omubi kakhulu ngobudala besilisa.
Noma kunjalo, ucwaningo olwengeziwe luye lwathola ukuthi ukusebenzisa ubuchwepheshe be-ICSI kungakwazi ukunqoba noma yikuphi ukungalungi okuhlobene nobudala.
Ucwaningo olulodwa lubuye lubukeze ngokuphindaphindiwe kwezingu-2 500 IVF imijikelezo eyasebenzisa i-ICSI. I-ICSI imele injection ye-intracytoplasmic yesilisa. I-ICSI ihilela ukujova isilwane sesisu ngokuqondile eqandeni. Abacwaningi bathola ukuthi iminyaka yobudala yanciphisa inani lemibungu ephezulu, kepha ayilimazanga amazinga okukhulelwa, noma yandisa ingozi yokuzalwa kwangaphambi kokubeletha noma ukukhulelwa kokukhulelwa.
Olunye ucwaningo-lolubheka cishe amasondo angu-4,800-ubuka amaqanda abanikazi emjikelezweni we-IVF-ICSI. Kulesi sifundo, wonke amaqanda e-donor avela kuma-36 ubudala noma asemncane.
Abacwaningi bathola ukuthi ukubala kwesidoda, ukuhlushwa, nokunyakaza (ukunyakaza) kwehle ngo-age. Kodwa, lapho kufika emgomweni oyinhloko-ukukhulelwa nokuzalwa ngokuzalwa-izinombolo zazihle. Iminyaka yobudala yasemaphandleni ayizange imonakalise amazinga okuphumelela.
Kubalulekile ukukhumbula ukuthi le miphumela ayikwazi ukukhiqizwa kulabo abangasebenzisi i-IVF, noma ngisho nalabo abangasebenzisi IVF nge-ICSI. Nge-ICSI, isidoda akudingeki ukuba ibhukude kahle noma singene ngaphakathi kweqanda. Zombili zidingeka ngokukhulelwa kwemvelo kanye ne-IVF ngaphandle kwe-ICSI.
Okubalulekile Ekukhuleni Kwamadoda Neminyaka
Ubudala bomuntu bunendaba. Amadoda angase abe nehla ephelele ekuzaleni njengabesifazane. Kodwa "iminyaka yobudala obudala" yinto okufanele imibhangqwana ibe nayo.
Bobabili amadoda nabesifazane kumele balwe namawashi abo.
Imithombo:
> Beguería R1, García D2, Obradors A1, Poisot F1, Vassena R3, Vernaeve V4. "Iminyaka yobudala bezingane futhi yasiza imiphumela yokuzala kuma-oocyte abanikeli be-ICSI: ingabe kukhona umphumela wabababa asebekhulile? " Uhlehlisiwe . 2014 Okthoba 10; 29 (10): 2114-22. i-doi: 10.1093 / i-humrep / deu189. Epub 2014 Jul 28.
I-Dunson DB, iColombo B, i-Baird DD. "Izinguquko ezineminyaka yobudala ezingeni nasesikhathini sokuzala emjikelezweni wokuya esikhathini." U- Hum Reprod. 2002 Meyi; 17 (5): 1399-403.
Fisch H1, Hyun G, Golden R, Hensle TW, Olsson CA, Liberson GL. "Ithonya lobudala bobaba kusezingeni eliphansi le-syndrome. "U-Urol. 2003 Jun; 169 (6): 2275-8.
U-Lawson G1, u-Fletcher R2. "Ubaba obambezelekile. "I-J Fam Plann Ukunakekelwa Kwezempilo Kwezempilo. 2014 Oct; 40 (4): 283-8. i-doi: 10.1136 / jfprhc-2013-100866. Epub 2014 Jun 23.
> Wu Y1,2,3, Kang X1, Zheng H1, Liu H1, Huang Q1, Liu J1. "Umthelela wobudala bomntwana emiphumeleni yokuzala ye-Intracytoplasmic Sperm Injection. "PLoS One. 2016 Feb 22; 11 (2): e0149867. i-doi: 10.1371 / iphephandaba.pone.0149867. eCollection 2016.