We explored how nattokinase (NK), a naturally occurring enzyme with anti-inflammatory and fibrinolytic effects, influences diabetes in a study using diabetic rats. Specifically, we focused on its potential to mitigate the harmful effects of diabetes, particularly in relation to blood glucose levels, plasma proteins, and inflammation.
In our experiment, we divided STZ-induced diabetic rats into three groups: a control group on a basic diet, a low-NK diet group, and a high-NK diet group. Over 14 days, we noticed that the high-NK diet significantly reduced glycogen buildup in the renal tubules and lowered certain inflammatory markers, specifically C-reactive protein (CRP) levels, by day 14. Surprisingly, while significant improvements were noted in the inflammatory response, the high NK diet did not lead to reductions in blood glucose levels.
It seems that the beneficial effects of NK in terms of preventing additional complications in diabetes are distinct from its impact on blood sugar control. The results suggest that NK may play a crucial role in decreasing inflammation and tissue damage without directly affecting glucose levels. Yet, it's unclear whether these positive outcomes stem from the NK itself or from the breakdown products created during digestion.