Exame de sangue usa IA para prever Parkinson

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[{"selector":"#anim-256731fe-8c49-4946-80c0-84305eb52d14","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6a368b41-7b97-47cc-94e1-c3f4e014d8a3","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-78747989-8b77-40d3-b7e0-5bcba9f3a758","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-5655b594-79dc-41a4-bee4-7afa95d83d56","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bffb5cd2-bd1e-4692-9bd1-eacf89b41114 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(12.514648210040342%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Um exame de sangue desenvolvido por cientistas da University College London (UCL) e do University Medical Center Goettingen utiliza inteligência artificial (IA) para prever a doença de Parkinson até sete anos antes do início dos sintomas PEXELS

[{"selector":"#anim-6a9d8aba-d6ed-4051-ba81-1cad595594f7","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-577811b1-9304-4b32-bd47-e396b4e962e3","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-585ff17b-6855-422e-9118-0dca44b611f5","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-1dc5afcc-f8d3-4833-aed6-dfd30b56e716","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d8dd74b8-b1d5-43c0-af3d-874bc965c17e [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(12.514648210040342%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] O Parkinson é uma doença progressiva do sistema nervoso que afeta, principalmente, os movimentos do paciente. No Brasil, a estimativa é de que a doença atinja cerca de 200 mil pessoas PEXELS

[{"selector":"#anim-3e5c2728-8b4d-45b2-9994-4fb4fb433dcc","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d8b7b74f-207c-4d84-9353-959e04a5ac53","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-d2c8ecd1-d11a-4b62-bc6d-a2a670f5ce89","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-45bdf011-55ec-4506-bd4c-aba10583e78d","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] A condição é caracterizada por tremores, rigidez muscular, dificuldade de andar e de falar, lentidão nos movimentos e perda de equilíbrio. E é causada pela morte de células nervosas responsáveis por produzir dopamina, que estão localizadas em uma região do cérebro que controla o movimento PEXELS

[{"selector":"#anim-0097fcdc-40aa-483a-9e12-c87925746660","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-600da68b-68cc-4059-a1b1-8a39c194a4d7","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-54de9246-f94e-492f-a4e2-bff40e7ddbe0","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-bc8c7624-ac27-40a7-b468-41861e17a731","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-5520c414-7c11-4217-8372-5645dd355bdd [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(12.514648210040342%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Segundo os pesquisadores, o diagnóstico precoce e a previsão do Parkinson podem ser valiosos para encontrar tratamentos que possam retardar ou cessar a doença, protegendo as células cerebrais produtoras de dopamina PEXELS

[{"selector":"#anim-a79d8695-3386-4d67-8e54-f01f64a0602e","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-769a2d56-f6ff-44b6-93e2-1b8872067a68","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-98f52031-204b-4226-8695-321cb7ccd048","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-36bb35d2-c120-4213-a53e-6120059ff474","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-0cf37396-0454-4d39-80b1-04970bf0a88a [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(16.21444354330016%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Diante disso, os pesquisadores decidiram usar um tipo de inteligência artificial chamado aprendizado de máquina para analisar um painel de oito biomarcadores sanguíneos cujas concentrações são alteradas em pacientes com Parkinson PEXELS

[{"selector":"#anim-89bf9ea7-49a6-4bfe-9cac-021ca80a52ce","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-0595dc2d-f328-4915-afd6-080cfd2c70d4","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-452a5a4e-01fa-4c4d-9f96-65988a96cbf7","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-5ccb2f69-d70c-436c-b44f-08af1758f4cd","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d3b937c6-6ddd-4ca1-a4fb-0e6fcb5a9f67 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(23.240352012723896%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Segundo o estudo, a análise da IA poderia fornecer um diagnóstico da doença com até 100% de precisão. A equipe, então, realizou experimentos para entender se um teste utilizando essa IA poderia prever a probabilidade de uma pessoa desenvolver Parkinson PEXELS

[{"selector":"#anim-090516df-f18c-4b0d-82a6-0253902d788d","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-902437af-c158-4581-89b6-c39bd131d4d9","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-59ea6a6d-9634-46c6-a660-b9490b0db982","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-200a3da5-22d6-4998-b078-1f7113ba8b9c","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-478b817f-3f70-4b30-8fd8-44b2dacc75c0 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(12.514648210040342%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Segundo os pesquisadores, quando a IA analisou o sangue desses pacientes, identificou que 79% deles tinham o mesmo perfil de uma pessoa com Parkinson PEXELS

[{"selector":"#anim-893fcf6c-1282-4353-b3e7-a420a7bda430","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7ef49d6c-35d3-4741-9bfc-222de6ea6d67","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-a605c1c8-299d-4f0d-ae79-4a6d6844efdc","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-39663a7f-aed9-4724-85f5-26412583bdd8","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e72fffa2-a6e3-460f-b4a4-890ae11ab966 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(28.72205269410283%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Depois disso, os pacientes foram acompanhados por um período de 10 anos e as previsões feitas pela IA corresponderam à taxa de conversão clínica — ou seja, a equipe conseguiu prever corretamente que 16 pacientes desenvolveram Parkinson com até sete anos antes do início de quaisquer sintomas PEXELS

[{"selector":"#anim-a7b41cc1-20a6-4c33-b06d-9557c5ae21eb","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6122db08-33db-4987-85e1-9fa14012ba62","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-fb68e396-2683-41da-ad05-9bb339d0bcb4","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-d911a9c3-3034-4284-a583-f69e0e8ac05f","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d9f7503b-94c1-4a21-a1b9-4bdd43fd58d4 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-25.01212264534893%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] A equipe segue acompanhando o restante dos pacientes com previsão de desenvolver Parkinson, conforme a análise da IA, para verificar ainda mais a precisão do teste PEXELS

CNNBRASIL.COM.BR

[{"selector":"#anim-94c1ca93-6a87-4bee-8923-f53ccbcf6f04","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-908e45da-3363-4bb3-8a78-5634d70eeeae","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bac228d9-a62d-4ac6-9457-e5385e319ce1","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-cb5a404f-c264-46e1-a19d-23822534f788","keyframes":{"transform":["translate3d(0px, 2132.63615%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e73ca126-cf4b-48fb-8cd5-feb2dff024a6","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e161e9ef-951e-4c2b-bede-df47a5c49c2e","keyframes":{"transform":["translate3d(-117.84387%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6f4de811-9684-45d9-9fb4-49c88ff251b2","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2d1d767e-e98d-4e7e-bb06-5341aa6d444e","keyframes":{"transform":["translate3d(0px, 1223.93157%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1611d28f-85e2-4fff-8d38-474a19985b1d [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(12.514648210040342%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] leia mais em PEXELS Arraste para cima