Nattokinase is an enzyme extracted and purified from a Japanese food called nattō. Nattokinase is a serine protease of the subtilisin family. It exhibits a strong fibrinolytic activity. A 2009 study showed that nattokinase may be effective in catabolism of toxic amyloid fibrils associated with Alzheimer's Disease, as well as the insulin fibrils associated with diabetes and the prion peptide fibrils associated with prion diseases.
J Diabetes. 2023 Jul 4.
Protective effects of nattokinase against microvasculopathy and neuroinflammation in diabetic retinopathy
Nattokinase purchased from AbMole
Invest Ophthalmol Vis Sci. 2021 May 3;62(6):25.
Nattokinase Attenuates Retinal Neovascularization Via Modulation of Nrf2/HO-1 and Glial Activation
Nattokinase purchased from AbMole
| Molecular Weight | 463.5 |
| Formula | C23H28ClN3O5 |
| CAS Number | 133876-92-3 |
| Solubility (25°C) | 10 mM in DMSO |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
| Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
| Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
| Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
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