Nattokinase powder is a natural enzyme extracted from fermented soybeans known as natto that has recently gained attention for its potential health benefits. This article provides an overview of nattokinase powder - how it is produced, its reported therapeutic uses, mechanism of action in the body, forms of administration, safety considerations, and more. The aim is to objectively explore the current scientific literature on nattokinase powder based on the top 10 Google search results on the topic.
Understanding Nattokinase Powder
Nattokinase is a potent fibrinolytic enzyme produced by the bacterium Bacillus subtilis during the fermentation process of boiled soybeans to make natto. Traditionally of Japanese origin, natto is a popular breakfast food due to its high protein content and nutritional value. Researchers found that natto contains a novel enzyme called nattokinase that has incredible clot-dissolving abilities. Nattokinase is now extracted and purified into a fine, white powder form that is stabilized for storage and sold as a dietary supplement. It is a rich source of vitamin K2 in addition to containing other soy peptides and nutrients.
Reported Uses of Nattokinase Powder
Several research studies on nattokinase powder suggest that it holds promise for improving cardiovascular health. Due to its fibrinolytic activity, nattokinase may help inhibit blood clot formation and enhance circulation by breaking down fibrinogen and plasma thrombi. This can aid in normalizing blood pressure and lowering risks of thrombosis, atherosclerosis, and other cardiovascular issues.
A 2016 double-blind, placebo-controlled human clinical trial found that nattokinase supplementation over 8 weeks significantly reduced systolic and diastolic blood pressure in subjects with pre-hypertension or stage 1 hypertension. Researchers noted that nattokinase could prevent early stages of hypertension from progressing to life-threatening levels.
Another study published in the journal Molecular and Cellular Biochemistry demonstrated the potent thrombolytic effect of nattokinase in dissolving blood clots in vitro. The researchers observed that nattokinase exhibited sustained fibrinolytic activity compared to other fibrinolytic enzymes. This study provides solid evidence for why nattokinase is associated with cardiovascular protection.
In addition, a team of scientists from Qingdao University Medical College in China investigated the effects of nattokinase on blood lipid profiles in animal models. Their findings revealed that long-term administration of nattokinase powder considerably decreased total cholesterol and triglyceride levels while increasing HDL or "good" cholesterol. Dyslipidemia is a major causative factor of atherosclerotic plaques, so optimizing blood lipid balance is key to reducing risks of heart attacks and strokes.
Other potential benefits of nattokinase powder include reducing muscle and joint pain, improving immune function, and alleviating menopause symptoms in women. Preliminary research indicates that it may also promote wound healing, treat muscle spasms, and prevent liver fibrosis formation. However, more research is required to conclusively support these additional applications.
Mechanism of Action
The potential benefits of nattokinase powder can be attributed to its key mechanism of action within the body - the ability to accelerate the breakdown of fibrin. Fibrin is an insoluble protein that is activated by thrombin during blood clotting and wound healing. It forms mesh-like structures that stop excessive bleeding. However, elevated levels of fibrin in blood vessels can lead to thrombosis and related cardiovascular diseases.
As a potent fibrinolytic enzyme, nattokinase enhances the body's endogenous ability to dissolve fibrin and fibrinogen complexes. According to research, it cleaves fibrin directly and also enhances tPA (tissue plasminogen activator) release to convert plasminogen into plasmin for indirect fibrinolysis. This prevents thrombi formation and improves circulation.
A 2007 study published in Clinical and Applied Thrombosis examined the biochemical properties that give nattokinase its strong thrombolytic capacity. Researchers found that nattokinase prompts the activation of pro-urokinase and increases tissue plasminogen activator expression - both crucial mechanisms for clot breakdown. This study confirmed the intrinsic and extrinsic ways that nattokinase generates its fibrinolytic effects within human plasma.
The cardiovascular benefits linked to nattokinase can be attributed to its ability to modulate multiple interconnected pathways that regulate the delicate balance between coagulation and anticoagulation. For instance, it appears to influence the renin-angiotensin system and endothelial nitric oxide synthase expression, both of which affect blood pressure and clotting activity. By targeting multiple biological processes, nattokinase supplementation can holistically improve cardiovascular health beyond just thrombolysis.
Forms of Administration
Nattokinase powder is commonly processed into oral capsules or tablets for supplementation at specific therapeutic doses. The average dose is 100 mg per day but can range between 50-100 mg based on health objectives, body weight, and manufacturer's instructions. As it is fat-soluble, nattokinase powder dissolved in oil solutions may have higher absorption rates compared to simple water solutions when consumed orally.
Some evidence suggests that combining nattokinase with other fibrinolytic enzymes like lumbrokinase, serrapeptase or bromelain, may have an additive effect on thrombus clearance. However, such combination therapy requires strict medical guidance to avoid bleeding risks associated with excessive breakdown of clotting factors.
It is important to note that nattokinase powder should not be used as a self-medication, especially by those on anticoagulant therapy or planning surgery soon. Consulting a doctor is necessary to establish if nattokinase supplementation is suitable given the medical history. Precision doses under professional supervision are vital to maximize benefits and avoid complications.
Safety and Considerations
Multiple clinical studies establish nattokinase as generally safe without any severe side effects when used alone at recommended doses. Human trials over 2-8 weeks using daily doses between 2000-7000 FU (fibrin degradation units) report virtually no adverse reactions. Mild effects like nausea or diarrhea usually subside quickly.
However, as it contains high levels of vitamin K, nattokinase can theoretically increase the risk of blood coagulation in rare cases. Hence, caution must be exercised by those prone to bleeding disorders or planning to undergo surgery soon. Patients on blood-thinning medications like warfarin should consult and closely monitor INR levels before taking nattokinase supplements to avoid possibility of thrombosis.
Pregnant or nursing women should refrain from nattokinase supplementation due to inconclusive evidence on fetal safety. Also, combining nattokinase with pharmaceutical blood-thinners may heighten bleeding risks synergistically by inhibiting clotting factors excessively. Therefore, monitoring anticoagulation therapy dosages is highly recommended.
While most clinical studies demonstrate safety, some researchers raise questions about potential long-term side effects with overdose or prolonged use of nattokinase supplements. There is still need for further toxicity evaluations over extended periods on human subjects before definitive conclusions can be made. It may also interfere with certain medication by potentiating or changing absorption rates.
Conclusion
In summary, nattokinase is an enzyme sourced from natto soybeans that exhibits intrinsic and extrinsic fibrinolytic properties within the body. Converted into a stable powder form, preliminary research on nattokinase supplementation demonstrates cardiovascular benefits by preventing blood clots and excess fibrin accumulation that can lead to thrombosis, atherosclerosis, hypertension, etc. However, it may also adversely interact with certain medical conditions or drugs, so professional medical advice is necessary to determine suitability on a case-by-case basis.
While current evidence and short-term studies indicate relative safety, more research through rigorous multi-center trials is required to establish definitively the therapeutic efficacy and long-term safety profile in humans. Standardized dosing protocols also need to be formulated. If future findings continue to remain positive, nattokinase could provide an alternative natural option for supporting cardiovascular health - especially for those unable to tolerate conservative drug therapy. However, conservative supplementation under medical care is still recommended to avoid possible contraindications with individual risk factors. In conclusion, science indicates the promising prophylactic and interventional potential of nattokinase powder if used prudently.
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References:
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