36% ya anthu aku France ndi a gulu la magazi la O +. Anthuwa atha kulandira magazi kuchokera ku gulu O ndipo atha kupereka magazi kwa anthu omwe ali ndi kachilombo ka RHD + (RHD +). Kafukufuku wina akuwonetsa kuti onyamula gulu O amatetezedwa bwino ku matenda a covid-19.

Mmodzi mwa magulu ofala kwambiri ku France

Ku France, gulu la magazi la O + ndilo gulu lachiwiri la magazi (kumbuyo kwa gulu la A +) chifukwa ndilo gulu la magazi la pafupifupi 36% ya anthu a ku France (motsutsa 37% a gulu la A +). Monga chikumbutso, magulu amagazi osowa kwambiri ndi magulu B ndi AB omwe amakhudza 1% yokha ya anthu aku France.

Wolandira kuchokera ku gulu O

Mutu wa gulu O alibe antigen A kapena B antigen. Choncho akhoza kungolandira magazi kuchokera ku gulu O chifukwa seramu yake imakhala ndi ma antibodies anti-A ndi B. Pamaso pa maselo ofiira a magazi a magulu A, B ndi AB, ma antibodies amawawononga ngati akuukira kachilomboka. Tikulankhula za hemolysis.

Wopereka kwa magulu a Rhesus + okha

Mutu mu gulu la O + uli ndi rh positive (RHD +). Choncho angapereke magazi kwa anthu omwe ali ndi rh (RHD) yofanana: anthu okhawo A +, B +, AB + ndi O + angalandire magazi ake. Maselo ofiira. Ku France, rh positive (RHD +) amapezeka pafupipafupi kuposa rh negative (RHD-). Inde, pafupifupi 85% ya anthu aku France ali ndi rh yabwino.

Monga chikumbutso, Rhesus system (RHD) imatsimikiziridwa molingana ndi kukhalapo kapena kusapezeka kwa D antigen pa maselo ofiira a magazi. Ngati tipeza zinthu D yomwe ndi antigen pamwamba pa maselo a magazi, rhesus ndi yabwino (RHD +). Ngati palibe chinthu D pamwamba pa maselo ofiira a magazi, rhesus ndi negative (RHD-).

Gulu la magazi la munthu limafanana ndi ma antigen kupezeka kapena kulibe pamwamba pa maselo ofiira a magazi. Gulu la magazi limakhala ndi zinthu zomwe zimalola kuyika anthu m'magulu kuti athe kufotokozera kuyanjana koyenera panthawi ya kuikidwa magazi.

Magulu a magazi amafalitsidwa mwachibadwa, malinga ndi malamulo a chibadwa. Njira yodziwika bwino yamagulu a magazi ndi dongosolo la rhesus komanso dongosolo la ABO (lomwe limaphatikizapo magulu A, B, AB ndi O), omwe amadziwika mu 1901 monga Karl Landsteiner (1868-1943), dokotala ndi biologist.

Chiyambireni mliri wa Covid-19, gulu la asayansi lakhala ndi chidwi ndi kulumikizana pakati pa gulu lamagazi la anthu komanso chiopsezo chokhala ndi Covid-19. Malinga ndi INSERM, mchaka chimodzi, pafupifupi maphunziro makumi anayi adasindikizidwa pankhaniyi. Zina mwa ntchitozi zawonetsa kuchepetsedwa kwa chiwopsezo cha anthu omwe ali ndi mtundu wa magazi O.

Zotsatira izi zatsimikiziridwa kale ndi meta-analysis angapo.

Maphunziro ena a genome-wide-wide association omwe amachitidwa mwa odwala omwe adagonekedwa m'chipatala chifukwa cha Covid-19 poyerekeza ndi anthu athanzi nawonso amalozera mbali yomweyo. Ntchitoyi ikuwonetsa kuti zigawo ziwiri za genome zimakhudzidwa kwambiri ndi chiopsezo chotenga matenda, kuphatikiza gawo la chromosome 9 yokhala ndi jini ya ABO yomwe imatsimikizira gulu la magazi.

Chonde dziwani kuti kukhala m'gulu la O magazi sikumapewa mwanjira iliyonse zolepheretsa, njira zomwe zimayenderana ndi anthu komanso katemera. Anthu a Gulu O amatha kutenga kachilombo komanso kufalitsa kachilomboka.