Resveratrol helps in fight against cancer

By Janese Silvey

Courtesy of the Columbia Daily Tribune

Saturday, December 1, 2012

A compound found in grapes can make prostate tumor cells more susceptible to radiation treatment, increasing a patient's chances of recovery, a University of Missouri researcher has found. 

Michael Nicholl, an assistant professor of surgical oncology in the MU School of Medicine, tested resveratrol on cells relatively resistant to radiation. He found that when the compound is added, the cells stopped growing and died at a much faster rate than when treated by either the compound or the radiation alone. 

Resveratrol is found in grape skins, red wine and also in over-the-counter pill form at health food stores.The finding isn't an excuse to up one's intake of wine, though. 

Although there might be some benefits to that, Nicholl stressed that his study only tested high doses delivered right to the tumor cells. In real-world scenarios, injecting large doses of resveratrol would cause harmful side effects. 

"What we really need to design is a nice delivery mechanism for higher doses to be effective," he said. Nicholl also discovered the resveratrol activated two proteins that further assisted in the fight against the cancer cells. 

The next step is to test the treatment in an animal model before clinical tests could be initiated. Nicholl anticipates studies on mice in the next several months. 

If additional studies are successful in the next few years, MU will request authority from the federal government to begin human drug testing that could lead to clinical trials. 

His initial study was published in the Journal of Andrology and Cancer Science. 

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nutraMetrix Isotonix® Resveratrol

Primary Benefits of nutraMetrix Isotonix® Resveratrol*:

• Maintains cell health
• Promotes normal cell cycle activity
• Promotes apoptosis (programmed cell death) in unhealthy cells
• Promotes normal nuclear factor kappa B (NF-Kappa B – protein) and cyclooxygenase-2 (COX-2 - enzyme) activity
• Promotes normal activity of the SIRT-1 gene (involved in calorie restriction, fat mobilization, mitochondrial function)
• Promotes cardiovascular health (promotes normal platelet activity, helps maintain normal vasorelaxation, provides antioxidant protection of LDL particles).
• Superior antioxidant and high ORAC value
• Promotes a healthy prostate gland
• Helps promote apoptosis in unhealthy prostate cells

Key Ingredients Found In nutraMetrix® Isotonix® Resveratrol:

Resveravine® (20% resveratrol extract): 10 mg

Resveratrol is a natural antioxidant found in red wine. Resveravine is a natural extract from Vitis vinifera standardized to contain 20% oligostilbenes. Resveravine is 100 to 300 times more concentrated in trans-resveratrol than other products made from grape skin. It provides antioxidant protection of low-density lipoprotein (LDL) particles, promotes normal platelet activity, vasorelaxation and blood flow, all which support cardiovascular health. It has been shown to promote apoptosis (programmed cell death) in unhealthy cells. Another proposed mechanism of action involves the study of the SIRT-1 gene (also known as the longevity gene). Sirtuins, known as Silent Information Regulators (SIRs), are deacetylase enzymes identified in all living creatures. Sirtuin proteins are known to play an important role in keeping regions of chromosomes turned off. Sirtuin controls the enzyme that converts acetate, a source of calories, into acetyl-CoA, a key component of cellular respiration. In humans, there are seven different sirtuins, SIRT-1 to SIRT-7. SIRT-1 has been studied by scientist for its potential effect on human cell lifespan.*

Resveratrol promotes normal activity of SIRT-1. Studies have shown that SIRT-1 activates a critical component of calorie restriction in mammals and promotes fat mobilization. The most recent study (Nature 2006) demonstrated that obese mice fed red wine extract (resveratrol) were in better health and lived longer than obese mice that were not fed the red wine extract. The resveratrol group were more able to maintain heart health compared to mice that were not fed resveratrol. SIRT-1 activation also supports healthy mitochondrial function and supports energy expenditure. Resveratrol has also been shown to have phytoestrogen activity and may support optimal estradiol activity. Other studies have documented neuroprotective benefits associated with resveratrol supplementation.*

A comparison test was made to evaluate the activating effect on human SIRT-1 of Resveravine and pure trans-resveratrol. Only the trans-resveratrol form of the molecule promotes normal activation of the mammalian SIRT-1 gene in vitro test. Resveravine was more than eight times more likely to promote SIRT-1 activity than pure trans-resveratrol, showing that Resveravine is more efficient than resveratrol in promoting the normal activity of SIRT-1. Therefore, while the specific mechanisms of SIRT-1 and resveratrol are still unclear, the studies show that SIRT-1 is essential in lifespan extension and health improvement, and resveratrol promotes SIRT-1 activity.*

Studies in numerous species have demonstrated that reduction of calories 30 to 50 percent below ad libitium levels of a nutritious diet can promote a longer lifespan, improve overall health, promote normal stress resistance and decelerate functional decline. Studies showed that, SIRT-1 activates a critical component of calorie restriction in mammals, and promotes fat mobilization in adipocytes by repressing PPAR (test conducted on mice). Because healthy fat levels have been shown to promote a longer murine lifespan, it is suggested that calorie restriction could be connected to SIRT-1 and life extension in mammals.

As an alternative strategy, new research has focused on the development of calorie restriction mimetics, compounds that mimic the effect of calorie restriction by targeting metabolic and stress response pathways affected by calorie restriction, but without restricting caloric intake. Resveratrol has been suggested as a potential calorie restriction mimetic.  

Supplementing mice with resveratrol significantly increases their aerobic capacity. By promoting healthy SIRT-1 activity, resveratrol promotes healthy mitochondrial function and supports energy expenditure, thereby promoting healthy weight. In vivo test conducted on mice on a high-calorie diet, resveratrol shifts the physiology of middle-aged mice on a high-calorie diet towards that of mice on a standard diet and promotes their overall health.  

BioVin® Advanced (French Red Wine Extract with 5% resveratrol): 200 mg

Red wine extract containing oligomeric proanthocyanins (OPCs), known to be extremely effective in supporting cardiovascular health by supporting normal blood circulation, strengthening blood vessels, and promoting normal platelet activity. BioVin Advanced provides OPCs and additional Resveratrol. The red wine grape contains two main constituents shown to be of significant antioxidant value: red wine polyphenols (flavonoids) and trans-resveratrol (mentioned above). Oligomeric proanthocyanins are flavonoid complexes that act as super potent antioxidants in the human body. BioVin Advanced combines the antioxidant properties of OPCs with trans-resveratrol to promote phase 2 metabolizing enzymes, which are involved in the detoxification of the body’s cells, promoting apoptosis (programmed cell death) in unhealthy cells, promoting healthy cholesterol levels, and general free-radical scavenging properties.*

VitaBlue® Wild Blueberry Extract (12.5% anthocyanins): 50 mg

Blueberries rank highest among many fruits and vegetables for ORAC activity and contain 25-30 different types of anthocyanins. Anthocyanin gives blueberries (and other fruits) their rich blue and red coloring, and is a powerful flavonoid antioxidant. The mechanism of action surrounding anthocyanins has been studied at the molecular level, demonstrating effects such as the promotion of healthy cells and apoptosis (programmed cell death). Blueberries provide large amounts of chlorogenic acid, which is thought to be important in promoting cellular health. VitaBlue Wild Blueberry Extract supports the body’s COX-2 inhibitors and provides powerful antioxidants in much higher quantities than fresh blueberries, and show to be effective in promoting cardiovascular health, contributing to normal cell cycle traverse, and maintaining overall cellular health.

 

 

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