Kodi katemera amapereka chitetezo kwa zaka zambiri?

Kodi katemera amapereka chitetezo kwa zaka zambiri?

Potengera mafunde akusintha kwa corona padziko lonse lapansi komanso kuchuluka kwa matenda, kafukufuku waposachedwa wawonetsa kuti katemera wa Pfizer ndi mnzake "Bionic", kuphatikiza Moderna, atha kupereka chitetezo ku kachilombo ka Corona kwazaka zambiri. kapena kwa moyo wonse.

Kafukufuku waku US adapeza kuti anthu ambiri omwe adatemera katemera wa mRNA sangafunenso milingo yowonjezera yowonjezera, bola ngati kachilomboka ndi mitundu yake yatsopano sizisintha kwambiri.

"Ndichizindikiro chabwino cha kukhazikika kwa chitetezo chathu pogwiritsa ntchito katemerayu," adatero Ali Al-Yaidi, woyang'anira kafukufuku ndi pulofesa wothandizira pa yunivesite ya Washington ku St. Louis, malinga ndi zomwe zinanenedwa ndi "New York Times."

Maselo a chitetezo cha mthupi ndiye chinsinsi

Dotoloyo ndi anzawo mu kafukufukuyu adapeza kuti maselo oteteza chitetezo omwe amazindikira kachilomboka amakhalabe m'matupi a anthu omwe achira ku corona kwa miyezi isanu ndi itatu atadwala.

Komanso, kafukufuku wopangidwa ndi gulu lina anasonyeza kuti maselo otchedwa "memory B" maselo akupitiriza kukhwima ndi kulimbikitsa kwa osachepera chaka chimodzi matenda.

Pakafukufuku watsopanoyu, asayansi adanenanso kuti chitetezo chamthupi chingakhale kwa zaka, ndipo mwina kwa moyo wonse, mwa anthu omwe ali ndi kachilomboka ndipo adalandira katemera pambuyo pake, koma sizinali zomveka kwa iwo ngati katemera yekha angakhale ndi zotsatira za nthawi yayitali. ofanana ndi omwe anali ndi matendawa kale.

Chifukwa chake, gululo lidayang'ana komwe kumachokera ma cell a kukumbukira, ma lymph node, komwe maselo oteteza chitetezowa amaphunzitsidwa kuzindikira ndi kulimbana ndi kachilomboka.

Iwo anapeza kuti pambuyo pa matenda kapena katemera, kamangidwe kamene kamatchedwa germinal center kamakhala m'ma lymph nodes. Ndi mu kapangidwe kameneka komwe ma cell amaphunzitsa mwamphamvu kulimbana ndi kachilomboka.

Maselowa akamathamanga kwambiri, amakhala ndi mwayi woletsa ma virus omwe angatuluke.

Kukula kwa B-cell kumateteza ku ma virus

Mofananamo, Marion Pepper, katswiri wa chitetezo chamthupi ku yunivesite ya Washington ku Seattle, adalongosola kuti aliyense nthawi zonse amayang'ana kwambiri za kusinthika kwa kachilomboka, ndikuti kafukufukuyu akuwonetsa kuti "ma cell a chitetezo chamthupi B nawonso akusintha, zomwe zikutanthauza kuti kupitiliza chitetezo ku virus. ”

Pa kafukufukuyu, gululo lidaphunzira zambiri za anthu 41, kuphatikiza asanu ndi atatu omwe adadwala kachilomboka, ndipo onse adalandira katemera wa katemera wa "Pfizer" awiri, ndipo gululo lidatenga zitsanzo kuchokera ku ma lymph nodes. Anthu 14 patatha milungu itatu, inayi, isanu, isanu ndi iwiri ndi 15 pambuyo pa mlingo woyamba.

Ofufuzawa adapeza kuti masabata 15 pambuyo pa mlingo woyamba wa katemera, malo osungira majeremusi akadali otanganidwa kwambiri mwa anthu onse 14, komanso kuti chiwerengero cha kukumbukira "B" maselo omwe anazindikira kachilomboka sichinachepe.

Kuonjezera apo, Al Yabidi anafotokoza kuti "kupitirizabe kuyankha kwa miyezi inayi pambuyo pa katemera ndi chizindikiro chabwino kwambiri," monga momwe tizilombo toyambitsa matenda tizilombo toyambitsa matenda nthawi zambiri timafika pachimake patatha milungu iwiri katemera ndiyeno nkuzimiririka.

Okalamba ndi anthu omwe alibe chitetezo chamthupi amafunikira zowonjezera

Kwa iye, Dipta Bhattacharya, katswiri wa chitetezo chamthupi ku yunivesite ya Arizona, adati malo opangira majeremusi omwe amalimbikitsidwa ndi katemera wa "mRNA" adapitilirabe kugwira ntchito miyezi ingapo atachitika.

Anagogomezera kuti kufunikira kwa phunziroli kuli chifukwa chakuti zambiri zomwe asayansi amadziwa zokhudza kupitirizabe kukhalapo kwa malo osungira tizilombo toyambitsa matenda zimachokera ku kafukufuku wa zinyama, ndipo phunziroli ndiloyamba pa anthu.

Zotsatirazi zikuwonetsa kuti anthu ambiri omwe adalandira katemera adzakhala ndi chitetezo chokwanira kwanthawi yayitali kuchokera ku zovuta zomwe zikuchitika pano za coronavirus.

Koma achikulire, anthu omwe ali ndi mphamvu zofooka za chitetezo chamthupi, ndi omwe amamwa mankhwala omwe amalepheretsa chitetezo cha mthupi angafunikire zowonjezera.

Kwa anthu omwe achira kachilomboka ndikulandira katemera, sangawafune nkomwe, chifukwa ma antibody awo amachulukirachulukira chifukwa maselo okumbukira "B" anali kupanga katemera asanatenge.

Kafukufukuyu adawonetsa kuti ndizovuta kuneneratu za nthawi ya chitetezo chamthupi pogwiritsa ntchito katemera wa mRNA, koma pakalibe zovuta zomwe zimatha kuthawa chitetezo chokwanira, zimakhala zotheka kupitilizabe kwa moyo wonse.

Mitu ina: 

Kodi mumatani ndi wokondedwa wanu atabwerako kuchokera pachibwenzi?

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