Powered by Guardian.co.ukQhov tsab xov xwm hu ua “Ua hluas muaj txhob kaw zog phev?” yog sau los ntawm Hannah Devlin, science correspondent, rau theguardian.com on Wednesday 18th Lub ob hlis ntuj 2015 06.01 UTC

Tub hluas ntxhais hluas cov tub hluas twb muaj ntau kev txhawj txog: me ntsis, cov menyuam ntxhais thiab qhov loj ntawm lawv cov "tshaj plaws", raws li Adrian Mole tej zaum yuav tau muab tso rau. Tsis tau qhov teeb meem ntawm muaj txhob kaw zog hluas phev tiag tiag yuav tsum tau ntxiv rau daim ntawv no?

Zaum ntawm lub University of Cambridge tau pom no yog cov ntaub ntawv tom qab nqa tawm ib txoj kev kawm uas ntau tshaj 24,000 cov niam txiv thiab lawv cov me nyuam. Qhov ntsuam teem rau me me tshuaj ntsuam genetic sib txawv nruab nrab ntawm cov niam txiv thiab me tub me nyuam, uas yog lam xav yuav tshwm sim los ntawm luam uas tsis nyob rau hauv lub qe los yog cov phev hlwb.

Txoj kev tshawb no qhia tau hais tias, nyob rau nruab nrab, txiv dhau tsawg kawg yog rau lub sij hawm raws li ntau ntawm cov hloov mus rau lawv cov me nyuam raws li cov niam. Qhov no qhia phev DNA yog ib tug tsawg ncaj ncees replication ntawm leej txiv lub caj ib theem zuj zus, tej zaum vim cov phev hlwb muaj undergone ntau pawg tshaj tus poj niam lub qe cell los ntawm lub sij hawm conception tshwm sim.

Qhov ntau tawm thov nyiaj - thiab ib tug uas tau txais feem ntau xim - yog hais tias lub yuam kev nqi nyob rau hauv cov phev hlwb ntawm tub hluas ntxhais hluas cov tub hluas yog hais txog 30% siab tshaj uas rau cov tub hluas.

Cov neeg tshawb fawb hais no yuav piav qhia txog yog vim li cas cov me nyuam ntawm tub hluas ntxhais hluas txiv muaj ib tug ntau dua uas yuav muaj rau mob xws li autism, schizophrenia thiab spina bifida.

Tus ntawv lub sau, Peter Förster, hais tias: "Cov me nyuam ntawm 15-xyoo-laus cov tub hluas muaj hais txog 30% ntau change tshaj cov me nyuam ntawm cov tub hluas. Nws yog ib tug J-zoo li tus tis. "

Qhov no tej zaum txhais mus rau ib tug uas muaj feem yuav yug tsis xws luag ntawm txog 2% rau tub hluas ntxhais hluas cov tub hluas, muab piv nrog ib tug nruab nrab uas yuav muaj los ntawm 1.5%, nws hais tias.

Förster hais tias: "Nws yuav hais tias tag nrho cov phev ntau lawm system yog xav paub ntau tshaj kev ua yuam kev nws thaum pib ... hais tias nws cia li tsis optimized tsis tau."

Nws hais tias qhov kev tshawb xav tau txawm sim hawm caij nyoog lub tswv yim, los ntawm lwm journalist, hais tias yog tub hluas ntxhais hluas cov tub hluas masturbated ntau, lawv tej zaum yuav muaj peev xwm mus ua hauj lwm lawv txoj kev los ntawm qhov no "suboptimal" lub sij hawm ntau sai heev.

Ua ntej cov hluas mloog no suggestion (tsis lawv twb siv nej ib tug ntau lub sij hawm mus no kev ua si?), nws yog nqi saib cov daim ntawv nws tus kheej, nyob rau hauv lub Royal Society Journal Hais Plaub B.

Tus khib tshaj plaws yog lub tiav qhaj ntawv ntawm lub J-zoo li tus curve. Ntawm no yog lub teeb, uas zoo li ib tug ncaj kab rau kuv.

Germline Str hloov nqi rau niam thiab txiv
Germline Str hloov nqi rau niam thiab txiv. Duab: Kev hais plaub ntug ntawm lub Royal Society

 

Nws yog ib qhov tseeb hais tias cov ntaub ntawv taw tes rau tub hluas ntxhais hluas cov tub hluas yuav qhia ib tug me ntsis ntau cov hloov dua hais tias rau lub 20- mus rau 30-xyoo uas muaj hnub nyoog ntau, tiam sis nws tseem zoo nkaus li mus sib tshooj nrog cov 95% cog qoob loo luv rau lub linear qauv. Kuv tsis tau pom li cas los xij los xaus tias "tus kab mob hlwb ntawm cov hluas tub yog ib tug kos rau cov laus txoj cai", raws li tus sau phau ntawv ua.

Yog hais tias koj twb yuav mus sau tias lawv, tej zaum koj kuj xav paub yog vim li cas phev mus ib tug me ntsis dodgy ntawm 30, tab sis, ces zaug dua nrog cov mus kom ze ntawm nruab nrab muaj hnub nyoog, vim hais tias muaj zoo muaj ib tug ntsia hlau loj nyob rau hauv lub 30-35 qeb. Ib tug yooj yim piav qhia no yog hais tias cov ntaub ntawv yog ib tug me ntsis nrov.

Allan Pacey, xib fwb ntawm andrology nyob rau University of Sheffield, pom zoo: "Qhov no tsis ua rau kev nkag siab rau kuv. Kuv tsis pom ib tug J-zoo li tus kev sib raug zoo thiab, nyob rau hauv cov nqe lus ntawm biology, Kuv tsis tau xav seb dab tsi uas yuav piav rau koj. "

Förster ntsiab lus mus rau ob peb pejxeem kev tshawb fawb, uas hint uas tub hluas ntxhais hluas txiv tej zaum yuav ntau yuav muaj cov me nyuam uas muaj ntau yam mob. Tab sis nws yog ib qho nyuaj rau hais tias seb xws tshwm sim uas txuas ncaj qha caj ua los yog sib raug zoo thiab tej yam. Rau kuv, no tseeb studydoes tsis ua tau ntau kom daws tau qhov teeb meem. Raws li Pacey txo nws hwj nws: "Kuv tsis pom ib yam zoo kev txhawj xeeb rau tub hluas ntxhais hluas dads."

Thiab rau cov neeg tub hluas ntxhais hluas cov tub hluas uas tsis dads, muaj tej zaum lwm yam yog vim li cas tos kom txog thaum lawv 20s pib taug txiv.

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