M'zaka za m'ma 17 ku Milan wapereka umboni woyamba wofukula zakale wa zigawo za psychoactive za cannabis m'mafupa a munthu. Izi zikuwonekera kuchokera ku mafupa a mafupa omwe anakwiriridwa pansi pa chipatala.
Gaia Giordano wa payunivesite ya Milan ku Italy anati: “Mamolekyu a m’mitengo ya mankhwala amatha kuzindikiridwa ndi zinthu zoopsa kwambiri ngakhale patadutsa zaka zambiri munthu atamwalira.
Mafupa akale a cannabis
Iye ndi anzake adapeza mamolekyu a tetrahydrocannabinol (THC) ndi cannabidiol (CBD) - zigawo za psychoactive za Katemera - m'mafupa a ntchafu ya mnyamata ndi mkazi wazaka zapakati omwe anaikidwa pakati pa 1638 ndi 1697. Giordano ndi anzake adatulutsa zitsanzo za mafupa m'mabwinja a anthu asanu ndi anayi. Anthuwa adayikidwa m'manda achipatala cha Milan's Ca' Granda m'zaka za zana la 17, ndipo ofufuzawo adatsimikizira izi pogwiritsa ntchito chibwenzi cha radiocarbon.
Kenako anachita kafukufuku wa toxicological popaka ufa ndi kukonza zitsanzo za mafupa kuti mankhwala amtundu uliwonse alekanitsidwe ndi kuyeretsedwa mu njira yamadzimadzi. Izi zinawalola kugwiritsa ntchito mass spectrometry kuti azindikire zigawo za mankhwala.
Ofufuzawa sanapezepo kutchulidwa kwa cannabis m'mabuku azachipatala a chipatala cha Ca' Granda. Giordano akuti anthu amatha kudzipangira okha mankhwala kapena kugwiritsa ntchito chamba posangalala.
Kafukufukuyu ndi wapadera chifukwa njira ya poizoni imeneyi imagwiritsidwa ntchito posanthula mabwinja a anthu pa malo ofukula zinthu zakale, anatero Yimin Yang wa pa yunivesite ya Chinese Academy of Sciences ku Beijing. "Ndikuganiza kuti kafukufuku wawo atsegula zenera latsopano lofufuzira zakugwiritsa ntchito chamba chakale," akutero.
Kafukufuku yemwe a Yang adapeza m'mbuyomu zida za cannabis pamiyala yamatabwa m'manda kuyambira zaka 2500. Ndipo cannabis ili ndi mbiri yotalikirapo yakukhala mitundu yomwe anthu amakonda kwambiri, kuyambira pakuweta kwawo zaka 12.000 zapitazo. Pakadali pano, Giordano ndi anzawo akukulitsa kusaka kwawo kwa poizoni kuzinthu zina, monga cocaine, m'mabwinja a anthu.
Chitsime: newsscientist.com (EN)
