Product Name:Polygonum cuspidatum extract / Giant Knotweed Extract
Latin Name: Polygonum cuspidatum Sieb.et Zucc.
Part used: Rhizome or Root
Appearance: Brown fine powder, White fine powder
Specification: Resveratrol 10%,20%,50%,98%
Type: Anti-Oxidation series extract
Test Method: HPLC
Molecular formula: C14H12O3
Molecular Weight: 228.2
What is Polygonum Cuspidatum Extract?
Polygonum cuspidatum extract is antibacterial, antithrombotic, antiinflammatory and antianaphylaxis. It can help to prevent cancer, especially breast cancer, antioxidate, delay aging, prevent osteoporosis, dementia in the elderly, lower cholesterin and reduce the risk of arteriosclerosis.
Polygonum cuspidatum extract is a product extracted from the root or rhizome of Polygonum cuspidatum. Commercial extracts are usually standardized to contain resveratrol 20%, 50%, 8Chemicalbook 0%, 99%. It has the effects of protecting the cardiovascular system, protecting the liver and promoting gallbladder, and anti-cancer. Polygonum cuspidatum extract has been widely used in various industries such as medicine, health care products, cosmetics, etc., and there is a huge demand in the international market.
Resveratrol (trans-3,5,4'-trihydroxystilbene), belongs to a class of polyphenolic compounds called stilbenes , found largely in the skins of red grapes and root of Polygonum cuspidatum Sieb. an oriental medicine used to treat diseases of the blood vessels, heart and live. Resveratrol is a fat-soluble compound that occurs in a trans and a cis configuration Both cis- and trans-resveratrol also occur as glucosides . Resveratrol-3-O-beta-glucoside is also called piceid.
Research has also shown this Polygonum cuspidatum extract can inhibit the formation of advanced glycation end-products, or AGEs. These are collagen-damaging proteins and fats that form in skin as a reaction from exposure to sugars. Left unchecked, AGEs can contribute to wrinkles and loss of firmness.
Place of Origin
Resveratrol/polygonum cuspidatum extract/Giant Knotweed Extract/Polydatin/Polygonum Cuspidatum Root Extract
Resveratrol 50% Brown yellow powder
Resveratrol 98% White Powder
Cosmetics.food additives.dietary supplement. pharmaceuticals..
Anti-Tumor - Resveratrol is a naturally occurring phytoalexine found in medicinal plants. This chemical was made from the Japanese Knotweed.
We suggest that the antitumor and antimetastatic activities of resveratrol might be due to the inhibition of DNA synthesis in LLC cells and the inhibition of LLC-induced neovascularization and tube formation (angiogensis) of HUVEC by resveratrol.
Apoptosis - The aim of this study was to evaluate the growth inhibitory and apoptosis‐inducing effects and mechanisms of Polygonum cuspidatum root in oral cancer cells.
The methanol extract of P. cuspidatum (MEPC) inhibited the proliferation of oral cancer cells by inducing caspase‐dependent apoptosis. Protein and mRNA expression levels and the transactivation of Specificity protein 1 (Sp1) were markedly decreased in KB cells treated with MEPC.
The results from this study strongly suggest that MEPC, its fraction, and Emodin may be potential bioactive materials to cause apoptosis mechanism via the down‐regulation of Sp1 in oral cancer cells.
Anti-Inflammatory - Resveratrol have been shown to exert an antiinflammatory and antiaging effects in vitro and in animal models.The objective of the study was to investigate the effect of a Polygonum cuspidatum extract (PCE) containing resveratrol on oxidative and inflammatory stress in normal subjects.Two groups (10 each) of normal-weight healthy subjects were randomized to placebo or PCE containing 40 mg resveratrol daily for 6 wk. The PCE-containing resveratrol has a comprehensive suppressive effect on oxidative and inflammatory stress. This next study tested the ability of a characterized extract of polygonum cuspidatum root extract (PCE) to inhibit mouse ear inflammation in response to topical application of 12-O- tetradecanoylphorbol-13-acetate (TPA).
PCE treatment at all doses significantly reduced ear edema compared to the TPA control. The PCE response was dose-dependent and 2.5 mg PCE significantly inhibited all markers of inflammation to a greater extent than indomethacin (0.5 mg). MPO activity was inhibited at PCE doses ≥ 1.25 mg/ear. Trans- resveratrol inhibited inflammation at comparable doses.
PCE inhibits development of edema and neutrophil infiltration in the TPA-treated mouse ear model of topical inflammation.
Hepaprotective - In the present study, the hypolipidemic effects of polydatin, a compound from Polygonum cuspidatum Sieb. et Zucc, on hyperlipidemic rabbits were evaluated. Thirty-two male rabbits were fed a high fat/cholesterol diet for 6 weeks and another eight male rabbits fed a basic diet served as normal control.All these results suggest that polydatin from Polygonum cuspidatum has favorable potency to develop a hypolipemic and/or hepatoprotective agent in clinic. Polygonum cuspidatum (PC) has been used for the treatment of arthritis and urinary diseases in traditional medicine.
In the present study, analgesic and anti-inflammatory effects of ethyl acetate extract of PC (EAPC) were investigated in vivo for the first time.Furthermore, EAPC effectively inhibited positive responses of c-reactive protein and rheumatoid factor compared to untreated control. Our findings suggest that EAPC can be a potent candidate for rheumatoid arthritis treatment.
Anti-Cancer - Resveratrol, extracted from Chinese herbal medicine polygonum cuspidatum root extract, is known to inhibit invasion and metastasis of human colorectal cancer (CRC), in which long non-coding Metastasis Associated Lung Adenocarcinoma Transcript 1 (RNA-MALAT1) also plays an important role.
We demonstrated that the anti-tumor effects of resveratrol on CRC are through inhibiting Wnt/β-catenin signaling, thus the expression of its target genes such as c-Myc, MMP-7, as well as the expression of MALAT1.
This finding of ours surely provides important pre-clinical evidence supporting future use of resveratrol in prevention and treatment of CRC.
In this next study, they went to investigate the different compounds that may be useful for the medicinal uses.One composition was isolated from the roots of Polygonum cuspidatum by cytotoxicity based fractionation and identified by HPLC-MS, UV scanning and IR.
This composition was identified as trans-and cis-resveratrol. It could specifically inhibit proliferation of many cancer cells but not human normal liver cell. We investigated the cytotoxicity of resveratrol to adriamycin-resistant MCF-7 cell in virtro. Resveratrol is a new anticancer composition which is less toxicity and higher efficiency in Polygonum cuspidatum.
Angiogenesis - The aqueous extracts of 24 herbs traditionally used as curing ischemic heart disease in clinic in China were screened for their in vitro angiogenic activity, another twenty-four traditionally used as anti-tumor or anti-inflammatory remedies in China were screened for their in vitro anti-angiogenic activity. Polygonum cuspidatum and Scrophularia ningpoensis elicited significant inhibition at a concentration of 1g dry herb /ml.
Memory Enhancement - Polydatin is one of the most common encountered stilbenes of nature and a key component of the Chinese herb Polygonum cuspidatum. This study is to investigate the effects of polydatin on learning and memory impairments induced by chronic cerebral hypoperfusion in rats, as well as the potential mechanism.
These results suggest that polydatin exhibit therapeutic potential for vascular dementia, which is most likely related, at least in part, to its anti-oxidant activity and the direct protection of neurons.
1. Protecting the heart and circulatory system, lowering cholesterol, and protecting against clots which can cause heart attacks and stroke.
2. Protects a cell's DNA. It is a powerful antioxidant. Antioxidants can help prevent cell damage caused by free radicals. Free radicals are unstable atoms caused by pollution, sunlight and our bodies natural burning of fat that can lead to cancer, aging and brain degeneration.
3. Lowering cholesterin and the blood viscosity, reducing the risk of arteriosclerosis, cardio-cerebrovascular disease and heart disease.
4. Anti-virus and accommodate immunity, inhibit Staphylococcus aureus, Micrococcus catarrhalis, Bacillus coli, aeruginosus Bacillus, have better inhibit action with Orphan virus, Fever blisters virus, enteric virus and Kesaqi virus.
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