Showing posts with label resveratrol. Show all posts
Showing posts with label resveratrol. Show all posts

Tuesday, April 29, 2014

Resveratrol Reduces Breast Cancer Risk by Blocking the Effect of Estrogen


Researchers from the Faculty of Pharmacy at the University of Calabria in Italy publishing in The FASEB Journal report that resveratrol blocks the effect of estrogen and can help to prevent the malignant growth of breast cancer in women. The grape/red wine derivative has been the subject of numerous scientific studies in recent years and has shown promise in lowering risks from cardiovascular disease, cancer and dementia.

Scientists also believe the protective nutrient may extend healthy lifespan by directly influencing mortality genes known as SIRT. Italian researchers noted "Resveratrol is a potential pharmacological tool to be exploited when breast cancer become resistant to the hormonal therapy." Health-minded adults will want to include resveratrol from natural food sources or supplementation to reap the numerous health benefits.

Resveratrol Supplementation Suppresses the Growth of Malignant Breast Cancer Cells
To design their study, researchers used several breast cancer cell lines expressing the estrogen receptor to test the effects of resveratrol. They exposed the different cells to a solution containing resveratrol and compared the results to cells left untreated. They found an important reduction in cell growth in cells treated with resveratrol, while no changes were seen in untreated cells. Further experiments determined that this effect was caused by a critical reduction in estrogen receptors caused by the administration of resveratrol.

This finding is the first of its kind as it relates specifically to the effect of resveratrolon a particular cancer cell line. The team was able to conclude that resveratrol is able to counteract the malignant progression of breast cancer cells by inhibiting the growth and spread of hormone resistant cancerous cells. This has important implications for the treatment of women with breast cancer whose tumors eventually develop resistance to hormonal therapy.

Resveratrol Specifically Targets Cancerous Cells to Fight Breast Cancer
Lead researcher Dr. Sebastiano Ando noted "Resveratrol is a potential pharmacological tool to be exploited when breast cancer become resistant to the hormonal therapy." A peer review board examining the study data concluded “scientists havent finished distilling the secrets of good health that have been hidden in natural products such as red wine.” It is important to note that in this body of research, resveratrol only demonstrated an effect on malignant cancer cells and exerted no effect on non-cancerous cells.

While the authors cautioned that people should not go out and start using red wine or resveratrol supplements as a treatment for breast cancer, the finding strongly indicates that the plant-protective compound should be considered as a component in an overall plan designed to prevent the devastating disease. Nutrition experts recommend a supplemental intake (from a purified, organically derived source) of between 50 and 250 mg per day for optimal health benefits.

Tuesday, April 22, 2014

Grape Seed Resveratrol and Pomegranate Significantly Lower Blood Pressure

Adults aged 55 and older face a lifetime risk of developing elevated blood pressure greater than 90%, accounting for more than 40 million doctor visits each year and taxing an already overburdened healthcare system. Uncontrolled blood pressure slowly degrades the vascular system throughout the body and takes a particular toll on the kidneys, eyes and delicate arteries around the heart and in the brain.

Small increases in blood pressure place an individual at dramatically increased risk from heart attack, stroke, kidney failure and blindness. Researchers focusing on the antioxidant capacity of grape seed, resveratrol and pomegranate found that regular consumption of these foods can effectively reduce blood pressure without the need for dangerous prescription drugs.

Natural Fruit Polyphenols Lower Cellular Stress and Blood Pressure
Oxidative stress is a significant factor leading to accelerated damage from hypertension. Excess stress prompts changes to the hormone angiotensin that is known to impact blood pressure through an intricate mechanism of vessel and arterial constriction. Natural agents that can lower dangerous levels of cellular oxidative stress are considered paramount to lowering blood pressure in susceptible individuals.

ACE (angiotensin-converting enzyme)-inhibitors are among the most popular prescription medications prescribed to negate the effect of the angiotensin hormone, and create a life of misery for many due to the myriad of side effects inherent with this class of drug. Recent research shows that artificially lowering blood pressure with drugs has virtually no effect on cardiovascular disease risk, compared to lowering readings with natural fruit polyphenols, diet and physical activity.

Study Shows That Grape Seed Extract and Resveratrol Can Effectively Lower Blood Pressure
Writing in the journal Metabolism, nutritional scientists compared the effect of grape seed extract and resveratrol on subjects with metabolic syndrome. Three groups were divided to receive either grape seed extract (GSE) at a dose of 150 mg per day, GSE at 300 mg per day or a placebo. After 4 weeks, both GSE supplemented groups experienced systolic blood pressure drops of 5 to 7 percent. This change was considered significant as no other dietary or lifestyle interventions were followed. Researchers believe that GSE and grape-derived compounds including resveratrol can be used to prevent and treat hypertension based on the potent antioxidant load delivered by the fruit extracts.

Pomegranates effectively lower blower blood pressure in a manner similar to GSE and resveratrol as the juice and extracts contain powerful polyphenols that counteract oxidative stress. This magical fruit also is found to lower circulating levels of the angiotensin hormone that can help blood vessels to relax. The result of a study published in the journal Atherosclerosis demonstrated that consumption of pomegranate juice (50 ml per day for 2 weeks) lowered ACE activity by 36%, leading to a 5% drop in systolic blood pressure.

It should come as no surprise to those following a natural health lifestyle that the key to controlling blood pressure and reducing the risk factors that promote cardiovascular disease are not found in a prescription bottle. Fruits such as the pomegranate and formulated natural extracts from red grape skins and seeds deliver powerful health benefits without any of the associated side effects of synthesized pharmaceuticals.