We examined how nattokinase (NK), a powerful enzyme, can benefit patients who suffer from strokes. Our research focused on the effects of NK in a model of transient middle cerebral artery occlusion (tMCAO), which simulates ischemic stroke and its aftermath. By administering different doses of NK to rats before they underwent surgery, we wanted to see if it could reduce brain damage and improve recovery.
Our observations revealed that NK treatment significantly reduced the size of brain injury and enhanced recovery from neurological issues. It also helped lower levels of harmful pro-inflammatory and coagulation substances while reducing oxidative stress markers in the affected brain area. These findings show NK’s potential in protecting the brain from the damaging effects of stroke.
Furthermore, we explored NK's protective properties in laboratory tests simulating neuron injury due to lack of oxygen and glucose. We found that it was effective in countering cell death across these models, working through various biological pathways. However, when we blocked NK's activity with a specific inhibitor, we noticed that its protective effects vanished, demonstrating that NK's enzymatic activity is crucial for its benefits.
Overall, this study highlights the multi-faceted protective role of nattokinase in brain injuries caused by ischemic events, confirming its potential as a therapeutic agent in stroke treatment.