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A armadilha da ferritina: A verdade oculta sobre ferro, fadiga e anemia
Paperback
Series: Iron, Ferritin & Anemia
Diet & NutritionMedical Reference
Publisher: Independently Published
Published: Aug 20 2026
Pages: 320
Weight: 0.85
Height: 0.80 Width: 6.00 Depth: 9.00
Language: Portuguese
E se um dos exames laboratoriais mais utilizados para avaliar o ferro não contasse toda a história?
A armadilha da ferritina: a verdade oculta sobre ferro, fadiga e anemia apresenta uma análise crÃtica e baseada em evidências sobre a forma como avaliamos o metabolismo do ferro, interpretamos a ferritina e diagnosticamos a deficiência de ferro e a anemia.
A ferritina tornou-se um dos marcadores mais solicitados na prática médica. Valores baixos são frequentemente interpretados automaticamente como deficiência de ferro, enquanto valores elevados podem ser vistos como sinal de boas reservas. Mas a fisiologia do ferro é muito mais complexa. A ferritina é apenas uma parte de um sistema altamente regulado que envolve absorção, transporte, reciclagem, armazenamento, inflamação, produção de glóbulos vermelhos e necessidades especÃficas de cada fase da vida.
Neste livro, a médica e pesquisadora Olena Berezovska examina como o conhecimento sobre o ferro evoluiu, o que os exames laboratoriais realmente podem - e não podem - revelar e por que números isolados podem levar a interpretações equivocadas.
O livro aborda a fisiologia do ferro e da ferritina, os diferentes tipos de anemia, gravidez, menstruação, infância, adolescência e envelhecimento, além dos mitos sobre alimentos ricos em ferro, suplementos orais, ferro intravenoso, transfusões e os possÃveis riscos do excesso de ferro.
Também explora uma questão frequentemente esquecida: o ferro é essencial para a vida, mas não é biologicamente inofensivo. Em excesso, pode participar de processos relacionados ao estresse oxidativo, ferroptose, envelhecimento, alterações neurológicas e biologia do câncer.
A armadilha da ferritina não ensina o leitor a perseguir um nÃvel ideal de ferritina. Seu objetivo é mostrar como interpretar o ferro dentro do contexto mais amplo da fisiologia humana e compreender por que tratar um resultado laboratorial não é necessariamente o mesmo que tratar uma pessoa.
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