Articles tagged with Polyphenols
This study found that administration of red wine polyphenols protected against ageing-induced endothelial dysfunction in young rats. RWPs also improved physical exercise capacity and normalized oxidative stress in the arterial wall, suggesting a beneficial role in vascular health.
Research by Penn State scientists found that certain polyphenols, such as grape seed extract and EGCG in green tea, inhibit iron absorption. The polyphenols bind to iron in intestinal cells, forming a complex that cannot be transported into the bloodstream.
A study by American Chemical Society found that many bottled tea beverages contain extremely low levels of polyphenols, with some containing virtually no antioxidants. In contrast, a single cup of home-brewed green or black tea can contain 50-150 mg of polyphenols.
A new study in the FASEB Journal suggests that polyphenols in virgin olive oil can down-regulate atherosclerosis-related genes, leading to improved lipid profiles and reduced inflammation. This research provides insight into how specific foods can modify gene expression, offering potential therapeutic benefits for cardiovascular disease.
Researchers found that polyphenols in red wine and green tea inhibit cancer growth by disrupting the sphingosine kinase-1 survival pathway. This discovery could lead to the development of drugs targeting this pathway to stop or slow prostate cancer progression, improving current treatments.
A new research study is exploring the effects of dark chocolate on cardiovascular health in people with high blood pressure. Participants will be given 50g of dark chocolate daily for eight weeks to examine its impact on blood vessel health and the risk of developing heart disease.
Two studies provide additional support for coffee's potential health benefits by linking it to reduced chronic inflammation and increased 'good' cholesterol. The findings add to growing literature suggesting that moderate coffee consumption may contribute to overall health and wellbeing.
A recent study by The Hershey Company confirms that flavanol antioxidant content in US chocolate and cocoa products is highly associated with the amount of non-fat cocoa solids. Cocoa powders, unsweetened baking chocolate, dark chocolate, and semi-sweet chips were found to have the highest levels of flavanol antioxidants.
Whole grain cereals contain surprisingly large amounts of healthful antioxidant substances called polyphenols, comparable to fruits and vegetables. Raisin bran has the highest amount of antioxidants per serving due to raisins.
A study by Purdue University and Mount Sinai School of Medicine found that chronic consumption of polyphenols from grapeseed extract can improve absorption in the brain, potentially preventing the formation of beta-amyloid protein associated with Alzheimer's disease. This research may lead to more effective treatment options for patients.
Researchers at UCLA discover that polyphenols in red wine can block the formation of toxic brain plaques and reduce their toxicity, potentially preventing cognitive deterioration. Human clinical trials are next to test this approach.
A growing body of research suggests that consuming foods rich in grape polyphenols can help reduce the risk of heart disease. Grape polyphenols have been shown to slow or prevent cell damage caused by oxidation and decrease the oxidation of low-density lipoprotein cholesterol.
A recent study published in the Journal of Agriculture and Food Chemistry found that POM Wonderful 100% Pomegranate Juice has superior antioxidant power compared to other beverages. The juice ranked higher than red wine, Concord grape, blueberry, and orange juices in terms of phenolic content and antioxidant activity.
A new discovery reveals that consuming polyphenols with high-fat foods may reduce the appearance of toxic compounds in human plasma. Polyphenols have been shown to counteract the unhealthy effects of fatty foods, potentially leading to improved heart health.
Researchers found that green tea polyphenols protect dopamine neurons and inhibit the ROS-NO pathway, which contributes to cell death in Parkinson's disease. The study suggests green tea polyphenols may be developed into a safe and easily administrable drug for Parkinson's disease treatment.
Research presented at Neuroscience 2007 found that Concord grape juice and Cabernet Sauvignon polyphenols can slow beta-amyloid neuropathology. The study suggests a potential protective role for non-alcoholic, polyphenol-rich Concord grape juice in maintaining long-term cognitive health.
Researchers discovered that high doses of red wine polyphenols can shut down and prevent cancerous tumors, while low doses facilitate blood vessel growth for those with diseased hearts. A healthy diet rich in fruits and vegetables containing polyphenols is sufficient to achieve this effect.
Researchers have found that grape seed polyphenols reduce salt-sensitive hypertension in young rats, while soy polyphenols protect against hypertension in estrogen-depleted/ovariectomized rats. Kudzu root extract also blunts blood pressure rise and improves glucose tolerance in animal models of insulin resistance.
Researchers found that polyphenols increase fatty acid breakdown and alter glucose usage in fat cells. Quercetin metabolites primarily accumulate in rat lungs, leading to increased fatty acid catabolism.
A new study finds that both normal-weight and overweight individuals underestimate calorie content of larger meals. To improve weight loss estimates, consider doubling initial meal size estimates or estimating calories item-by-item. Meanwhile, virgin olive oil rich in polyphenols has been shown to increase 'good' cholesterol levels and...
Researchers found that drinking three or more servings of fruit and vegetable juices per week reduces the risk of developing Alzheimer's disease by 76 percent. The benefit was particularly enhanced for subjects carrying a specific genetic marker linked to late-onset Alzheimer's disease.
Scientists from Université Laval found that red wine polyphenols significantly modulate inflammatory components released by macrophages in response to bacterial stimuli. These anti-oxidant properties could be useful in preventing and treating inflammatory periodontal diseases as well as other disorders involving free radicals.
Researchers at Penn State discovered that polyphenols in oats inhibit the Maillard reaction, reducing off-flavors and stale odors. The findings suggest that controlling polyphenol levels could prevent undesirable reactions, including those linked to human diseases.
Researchers analyzed eight apple varieties and found Red Delicious and Northern Spy apples to have the highest antioxidant levels. Polyphenols in the skin and flesh of these apples were responsible for the highest antioxidant activity, with epicatechin and procyanidin B2 being key contributors.
Research suggests that moderate red wine consumption (2-3 ounces per day) may have beneficial cardiovascular effects due to its high content of polyphenols. Polyphenols are also found in berries, green tea, and chocolate and can help prevent cell deterioration, plaque buildup, and blood clotting.
Researchers found that a class of polyphenols in apples, called procyanidins, significantly reduced precancerous lesions in laboratory animals. The study suggests that consuming whole apples, including the skin, may offer anti-cancer benefits.
The green tea gum helps eliminate free radicals that can damage DNA and lead to cancer. It also protects healthy cells by targeting cancer cells for destruction.
A study found that men who consumed green and black tea for five days had slower-growing prostate cancer cells compared to those who drank diet or regular soda. The researchers discovered a significant negative correlation between total polyamine levels and tea polyphenol content in the tissue.
Research suggests green tea consumption may prevent cancer and reduce oxidative DNA damage, with potential chemopreventive effects of green tea polyphenols. The study also identified novel EGCG analogs with potent anti-tumor activity.
Researchers found that tea polyphenols interfere with signaling pathways inside cells that may order cells to divide and multiply. By inhibiting these pathways, polyphenols can prevent cancer development.
A laboratory study found that tea polyphenols inhibited the growth of oral bacteria, reducing volatile sulfur compounds. The study also showed that low concentrations of polyphenols hindered the enzyme catalyzing hydrogen sulfide formation, cutting its production by 30%.
Researchers found green tea extract from tea bags is more effective than loose tea against human pathogenic viruses. Caffeinated green and black teas also outperform decaffeinated versions as anti-viral agents.
Researchers have found that green tea polyphenol EGCG can reactivate dying skin cells, accelerating their growth and differentiation. This could lead to new treatments for skin diseases and wounds, such as aphthous ulcers and psoriasis.
A study found that green tea extract polyphenol can block the uptake of dopamine, providing a potential protective mechanism against Parkinson's disease. The results suggest that polyphenol can inhibit the uptake of dopamine or neurotoxin MPP+ by blocking dopamine transporter.
A recent study published in the Proceedings of the National Academy of Sciences suggests that green tea polyphenols may help prevent and reduce the severity of rheumatoid arthritis. The study found that mice given green tea polyphenols were significantly less likely to develop arthritis, with only 44% developing the condition compared ...
A study found that red wine polyphenols increased the lag time of LDL oxidation, decreased lipid peroxides and thiobarbituric acid-reactive substances, and boosted plasma and LDL polyphenols. Vitamin E supplementation also showed antioxidant effects, although with varying degrees depending on EDTA presence.
Researchers at Cornell University are investigating methods to clarify clouded beverages such as beer, wine, and juice by removing haze-causing proteins and polyphenols. The goal is to extend the product's shelf life without compromising its quality or flavor.