Peran Ferritin pada Stroke Iskemik Akut
Stroke is a neurological deficit that occurs due to acute focal injury to the central nervous system that occurs solely due to vascular disorders, including cerebral infarction or bleeding. Ferritin is an intracellular and extracellular iron storage protein which is essential for iron homeostasis in the body. Ferritin is expressed in microglia and macrophages, and also in neurons. If there is cell damage due to ischemic stroke, ferritin will leave the cells and enter the serum. The hypoxia-ischemic state in stroke induces the expression of ferritin in oligodendrocytes and microglia. When there is oxidative stress, ferritin formation will increase. The function of ferritin in times of oxidative stress is still controversial. Ferritin in this condition can act as a scavenger and as a donor for free iron ions. Ischemic stroke patients with larger lesions and more severe neurological deficits showed higher serum ferritin levels and a higher likelihood of complications of bleeding transformation.