Kuongorora kwepermatozoa

Pakati pezvinonzi marangi anoona kubereka kwemurume ejaculate, zvinokosha kunyatsoteerera kuongororwa kwemuviri weDNA (maitiro ekuongorora mbeu). Izvo zvose ndeyekuti kutendeseka kwezvivako izvi mumasero evanhu vemazuva ano kunovimbisa nzira yakakodzera yekugadzirisa maitiro ekuberekera vana. Ngatitaurei nezvemhando iyi yekutsvakurudza mune zvakadzama uye garai pane zviratidzo zvikuru zvekuita kwaro, pamwe chete nemashoko ekugadzirira.

Ndezvipi zviitiko iyo yekudzidza inopiwa?

Kuongororwa kwepermendi DNA kupatsanurwa haisi kupiwa kuvanhu vose. Sezvo mutemo, rubatsiro rwake runoshandiswa mumatambudziko anotevera:

• kuongororwa kwekusagadzikana muwanano;
• kubudirira kwekuedza kuita mu vitro fertilization;
• kudzokorora kuenda;
• kuvapo kwekusagadzikana mu spermogram;
• Kugadzirira kushandiswa kwehutano hunobatsira hwekubereka mbeu, dzakadai seC ICSI.

Kana uchitarisa kuongorora, chigumisiro chinotarirwa se peresenti. Saka, ne 30% kudarika kweDNA kutendeseka uye nezvimwe, kuonekwa kwekushaya vana kunoitwa. Muvarume vane hutano, chirume checho chinobereka kwazvo, ichi chiyero hachipfuuri 15%. Zvinofanira kuonekwa kuti chidzidzo ichi chinopesana nekutsvakurudza pamusana pekuita kwepermatozoa, iyo inoitwa ne spermogram.

Ndezvipi zvikonzero zvingaita kuti kuwedzera kweDNA zviparadzane zvivepo mu spermatozoa?

Zvikonzero zvekuwedzera chirevo chinorehwa munyaya ino zvakanyanya. Uyezve, pane dzimwe nguva, vanachiremba havana kukwanisa kuumba, izvo zvakaita kuti kuputsika mune imwe mamiriro ezvinhu. Kazhinji pakati pezvikonzero zvinokonzera kuwedzera kweDNA zvakaparadzaniswa zviri mumarume maserojera, zvinotevera zvinozivikanwa:

• kukanganisa mumuviri weioni inonzi radiation;
• kuvapo kwehutachiona hwehutachiona muhutano hwekubereka;
• kugamuchirwa kwemutsara wakasiyana wemishonga uye chemotherapy kana zvirwere zvechirwere;
• uturu hwemuviri nesimbi yakasimba (mercury, mutungamiri);
• mamiriro ezvinhu akaipa;
• genetic factors;
• zvisingaperi zvirongwa mu genitourinary system (prostatitis, vesiculitis).

Rudzi urwu runotsvakurudzwa sei?

Mushure mokurapa kwe ejaculate nemagadzirirwo anokosha, inoongororwa pasi pe microscope nekuwedzera kukuru. Muchiitiko ichi, mushandi webasa anoverenga masero ane DNA akaparadzana uye asina kuputika.

Kugadzirira kuburitswa kwehuta kunosanganisira kurega zvepabonde kwemazuva matatu musati mutevedzo. Mukuwedzera, vanachiremba vanopawo zano rekudzivisa kuisa pachena muviri kumatambo akakwirira, i.e. kubva pakushanyira sauna, kushamba. Kana munhu achitora mishonga chero ipi zvayo yekurapwa kwezvinetso zvinokonzera, zvinonyatsokosha kuti uudze chiremba uyo anorayira chidzidzo.

Kugadzirisa kuongororwa kwakadaro kwehuta hakusi kwakaoma, asi kunofanira kuitwa chete neyanzvi. Chinhu chacho ndechokuti kuongorora kwechigumisiro kunofanira kuitwa kuburikidza nehuwandu hwehutachiona hwekubereka vana.

Kusvika iye zvino, pane dzakawanda zvechiremba uye mazita ezvibhedheni anoita rudzi urwu rwekutsvakurudza. Saka, apo nyanzvi dzinopindura mubvunzo wekuti iwe unogona kupi musvini kuti uongorore, vanachiremba vanopa murume uyu maitiro akawanda. Mumaguta makuru uye munzvimbo dzenharaunda, sekutonga, pane zvivako zvehutano zvakawanda zvakabatanidzwa mukuitisa tsvakurudzo ye ejaculate pane DNA kupatsanurwa.