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Cientistas chineses criam orelhas humanas com impressora 3D

MAi??todo foi usado para corrigir mA?-formaAi??A?o em crianAi??as

Pela primeira vez naAi??China, cientistas conseguiram reconstruir orelhas humanas a partir de tecnologia deAi??impressA?o 3DAi??e cAi??lulas humanas, de acordo com um artigo publicado na revista ai???EBio Medicineai??? nesta terAi??a-feira (30).

A reconstruAi??A?o foi feita em pacientes que sofrem de microtia ai??i?? uma deformidade congA?nita em que a orelha nA?o Ai?? desenvolvida atAi?? os primeiros meses de gestaAi??A?o. Ela afeta a audiAi??A?o, mas tambAi??m pode acarretar outros problemas de carA?ter fisiolA?gico e psicolA?gico.

Os cinco pacientes tinham entre 6 e 9 anos de idade. Para a reconstruAi??A?o do A?rgA?o, os cientistas escanearam as orelhas e transferiram os dados para uma impressora 3D, criando um molde novo.

A cartilagem do A?rgA?o foi desenvolvida in vitro, ou seja, fora do organismo vivo. Para tal, foram utilizados condrA?citos ai??i?? cAi??lulas presentes no tecido cartilaginoso ai??i?? que foram colocados em um suporte biodegradA?vel e desenvolvido em tubo de ensaio.

AlAi??m disso, a cartilagem foi utilizada para a reconstruAi??A?o auricular dos pacientes e alcanAi??ou resultados satisfatA?rios ao longo da maturaAi??A?o do tecido, que levou aproximadamente 2 anos e 5 meses.

De acordo com a revista ai???EBio Medicineai???, a microtia atinge 1 em cada 5 mil pessoas mundo. Mas, em paAi??ses latino-americanos e asiA?ticos, esse Ai??ndice aumenta.

Como o corpo humano possui diversas reaAi??Ai??es ao processo, a cirurgia ainda nA?o pode ser feita para fins estAi??ticos.

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