Flavonoids

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Chrysin is one of many flavonoids currently being researched as a phyto-extract, or plant extract, that may prevent some forms of cancer. If tests on chrysin bear out their promise, men would have an inexpensive natural supplement that would: • Increase free testosterone • Decrease excess estrogen • Produce a safe antianxiety effect Chrysin is sold to bodybuilders by commercial supplement companies that do not know whether or not their product is modulating testosterone and estrogen levels favorably in men.

The scientists conducting the study conclude that the aromatase-inhibiting effects of certain flavonoids may contribute to the cancer-preventive effects of plant-based diets. The advantages of using plant extracts rather than drugs to boost testosterone are twofold: plant extracts have ancillary health benefits and minimal, if any, side effects. Chrysin, for one, is a low-cost potent antioxidant with vitaminlike effects in the body. It is also an anti-inflammatory.

They contain flavonoids and procyanidins. You may need to take hawthorn for at least six weeks, three times a day, for angina or heart failure. Follow recommended dosages. If pain or exhaustion increase, discontinue use. If your condition does not improve in six weeks, consult your health care provider. Contraindications: If you are taking Lanoxin (digoxin), the medicine prescribed more than any other for heart ailments, or digitalis, do not use hawthorn, as hawthorn may adversely increase the effects of these drugs.

The Constituents of Medicinal Plants: An Introduction to the Chemistry and Therapeutics of Herbal Medicine Andrew Pengelly See book keywords and concepts

Most are derived from terpenes, though non-terpene structures such as certain flavonoids and alkaloids are included with the bitters. Bitters have certain physiological effects regardless of their chemical structure, since the bitterness itself directly stimulates tongue receptors, in turn sending signals via the gustatory nerve for the release of a cascade of gastric secretions and hormones. The effects are to stimulate appetite and digestive processes generally, increasing bile flow, regulating blood sugar levels and counteracting food sensitivities and allergies (Mills 1997).

Inhibition of bacterial mutagenesis by Citrus flavonoids', Planta Medica 62: 222-226. Constantino L., Rastelli, G., Rossi, T., Bertoldi, M. and Albasini, A. 1994, 'Composition, superoxide radicals scavenging and antilipoperoxidant activity of some edible fruits', Fitoterapia LXV: 44-47. Cseke, L. J. and Kaufman, P. B., in P. B. Kaufman, L. J. Cseke, S. Warber, J. A. Duke and H. L. Brielmann 1999, Natural Products from Plants, CRC Press, Boca Raton. Gee, J. M. and Johnson, I. T. 2001, 'Polyphenolic compounds.

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Studies conducted by these experts show that flavonoids work even better than the well-known antioxidant vitamin E. So do ginger and garlic, according to the results of numerous studies conducted all over the world. Similar flavonoids that improve liver function are also found in rosemary and grape leaves, which are used in Greek cooking. All of these herbs protect the liver from damage and increase the production of beneficial liver enzymes so that the liver can do its job better.

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Citrus marmalade can be good for you: the flavonoids found in citrus fruit, which help strengthen capillaries and enhance the effects of vitamin C, survive the manufacturing process when being made into marmalade, as do many of the antioxidants and liminoids. The pectin, the soluble fiber in citrus fruit that sets marmalade, has cholesterol-lowering abilities. It's a better choice than butter on your muffin or toast! Get some orange in your life: * Eat an orange, tangerine, or Clementine out of hand daily. ¦ Add mandarin orange segments to a spinach salad with some chopped red onion.

The Constituents of Medicinal Plants: An Introduction to the Chemistry and Therapeutics of Herbal Medicine Andrew Pengelly See book keywords and concepts

The action of broom in this regard is modified by the presence of flavonoids. It has an ergot-like action on the uterus and has been used as a substitute for ergot drugs. Some sources claim broom is narcotic and it has been used in smoking mixtures, although this practice is considered dangerous. Sparteine-containing herbs are contra-indicated during pregnancy. Pyrrolizidine alkaloids Pyrrolizidine alkaloids (PAs) contain two fused five-membered rings in which a nitrogen atom is common to both rings. The precursor is ornithine.

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Boldine, which How much is usually taken? Herbalists sometimes recommend up to 10 drops of tincture of the dried rhizome be taken three times per day.4 The tea form is unlikely to be effective, since the active compounds in blue flag are not water soluble. Are there any side effects or interactions? Blue flag can cause nausea, vomiting, and loose stools if too much is taken.5 People should not exceed the recommended amount given above.

Phyllanthus blocks DNA polymerase, the enzyme needed for the hepatitis (page 220) B virus to reproduce. In one study, 59% of those infected with chronic viral hepatitis B lost one of the major blood markers of HBV infection (e.g., hepatitis B surface antigen) after using 900 mg of phyllanthus per day for 30 days.3 While clinical rrials on the effectiveness of phyllanthus for HBV have been mixed, the species P. urinaria and P. niruri seem to work better than P. amarus. Clinical trials with hepatitis B patients have used 900-2,700 mg of phyllanthus per day.

The urinary tract antiseptic actions of buchu ate thought to be due to the volatile oils. The primary volatile oil component thought to have antibacterial action is the monoterpene disophenol. However, one test tube study using buchu oil found no significant antibacterial effect.5 How much is usually taken? The German Commission E Monograph concludes there is insufficient evidence to support the modern use of buchu for the treatment of urinary tract infections or inflammation.6 However, some traditional herbal practitioners continue to recommend the herb for these conditions.

Symptoms of CHF—including heart palpitations, chest pressure, and swelling in the extremities—decreased throughout the trial during the use of hawthorn. The efficacy of hawthorn for the treatment of CHF has been confirmed in a double-blind trial.38 Hawthorn extracts are available in capsules or tablets standardized to either total flavonoid (page 516) content (usually 2.2%) or oligomeric procyanidins (page 574) (usually 18.75%). Doctors who work with herbal medicine often suggest 80-300 mg two to three times per day.

The Inflammation Syndrome: The Complete Nutritional Program to Prevent and Reverse Heart Disease, Arthritis, Diabetes, Allergies, and Asthma Jack Challem See book keywords and concepts

Pycnogenol, a complex of antioxidant flavonoids extracted from the bark of French maritime pine trees, has been shown to reduce inflammation and, specifically, protect skin cells. Laboratory experiments have shown that Pcynogenol decreases the activity of two genes, calgranulin A and B, which are overactive in psoriasis and some other skin disorders. Pycnogenol decreased the activity of calgranulin A and B by twenty-two times. Other researchers have shown that Pycnogenol helps prevent the breakdown of elastin from inflammation and free radicals. What Else Might Help?

Rational Phytotherapy: A Reference Guide for Physicians and Pharmacists volker schulz and Rudolf Hansel See book keywords and concepts

Apparently it is protected in the living plant by the presence of antioxidant compounds such as flavonoids. The same principle can be used in alcoholic whole extracts by adding antioxidants such as ascorbic acid to improve hyperforin stability (Erdelmeier, 1998). The therapeutic efficacy of SJW extracts cannot be attributed to hyperforin alone, however, because extracts with a very low hyperforin content have also proven effective in three clinical studies (Schrader et al., 1998,2000; Woelk, 2000).

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Common in grapes, strawberries, raspberries, and walnuts, this phytochemical appears to remove cancer-causing agents from the bloodstream. • flavonoids. A family of chemicals found in apples, red wine, and tea, flavonoids seem to play a role in cancer and heart disease prevention. They may reduce cancer risk by blocking hormones that create cell changes and by suppressing changes in malignant cells. Indoles and isothiocyanates. Cruciferous vegetables, such as Brussels sprouts, cauliflower, and cabbage, are especially good sources of antioxidant phytochemicals. Isoflavones.

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Do juice the white, pithy part just under the peel because it contains a high concentration of beneficial flavonoids and vitamin C. Herbs can be added to juice combinations for health benefits. Use fresh herbs such as dandelion greens, fennel, ginger root, and mint. Other herbs, such as echinacea and dong quai, are not as readily available fresh and may give juice a bitter taste. To add such herbs, purchase them in capsule or liquid extract form, then stir the contents of a capsule or a few drops of extract into the juice.

The Inflammation Syndrome: The Complete Nutritional Program to Prevent and Reverse Heart Disease, Arthritis, Diabetes, Allergies, and Asthma Jack Challem See book keywords and concepts

In a general way diets rich in vegetables and fruits provide large quantities of antioxidants, such as vitamin C, carotenoids, and flavonoids. These antioxidants neutralize damaging free radicals. For example, people who eat large amounts of antioxidant-rich vegetables develop fewer wrinkles and look younger. In a more specific example, many people take glucosamine sulfate supplements, which help maintain "younger" joints and reduce the pain of osteoarthritis. 2. Physical Injuries Physical injuries can accelerate the aging of specific tissues, such as joints, muscles, and bone.

The Natural Pharmacy: Complete A-Z Reference to Natural Treatments for Common Health Conditions Alan R. Gaby, M.D., Jonathan V. Wright, M.D., Forrest Batz, Pharm.D. Rick Chester, RPh., N.D., DipLAc. George Constantine, R.Ph., Ph.D. Linnea D. Thompson, Pharm.D., N.D. See book keywords and concepts

The European literature involving passion flower recommends it primarily for the treatment of mild to moderate anxiety (page 30). In this context, it is often combined with valerian (page 756), lemon balm (page 701), and other herbs with sedative properties. How much is usually taken? The recommended intake of the dried herb is 4-8 grams per day.4 To make a tea, 0.5 to 2.5 grams of the herb can be steeped with boiling water for ten to fifteen minutes and drunk two to three times per day. Alternatively, 5-10 ml of passion flower tincture can be taken three to four times per day.

The Constituents of Medicinal Plants: An Introduction to the Chemistry and Therapeutics of Herbal Medicine Andrew Pengelly See book keywords and concepts

Therapeutics Experiments have proven flavonoids affect the heart and circulatory system and strengthen the capillaries. They are often referred to as 'biological stress modifiers' since they serve as protection against environmental stress (Middleton 1988). They are also known to have synergistic effects with ascorbic acid. Their protective actions are mainly due to membrane stabilising and antioxidant effects.

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See more on these on pages 60-61.) flavonoids are strong antioxidants with significant anticancer and anti-cardiovascular disease activity, while limonoids help to reduce cholesterol levels and stimulate detoxifying enzymes. þsoybeans. These beans provide a rich plant source of protein and plant sterols, as well as phytoestrogens such as lignans and isoflavones. The principle isoflavones in soy are genestein and daidzein. These isoflavones are powerful antioxidants and very effective inhibitors of the tyrosine kinase enzyme—a potent tumor promoter.

The Inflammation Syndrome: The Complete Nutritional Program to Prevent and Reverse Heart Disease, Arthritis, Diabetes, Allergies, and Asthma Jack Challem See book keywords and concepts

Researchers estimate that people nowadays consume between 23 and 170 mg of flavonoids daily, but that they may have consumed five to twenty-four times more (115 to 4,080 mg daily) in the past. Such a huge dietary intake of antioxidants—now missing from most people's diets—would moderate inflammatory reactions. Past and Present Intake of Vitamins and Minerals paleolithic* current u.s.f vitamins (mg/day) (mg/day) ratio Vitamin C 604 93 6.5 Vitamin E 32.8 8.5 3.9 Vitamin B2 6.49 1.71 3.8 Vitamin B, 3.91 1.42 2.8 Vitamin A 17.2 7.8 2.2 Folic acid 0.36 0.

C, but more than 500 mg of antioxidant polyphenols and flavonoids, which together are equivalent to 1,500 mg of vitamin C. In addition, vegetables and fruit are also rich sources of carotenoids, another class of powerful antioxidants. Although more than six hundred carotenoids have been found in nature, only a handful appear important for humans. These include alpha-carotene, beta-carotene, lutein, and lycopene. The rule to follow is diversity. Eat at least five servings of vegetables or fruit daily, and make a point of eating different types.

Culinary herbs are rich in antioxidant flavonoids and natural Cox-2 inhibitors. While the amounts of spices and herbs in a single meal may not have a substantial anti-inflammatory effect, they enhance an antiinflammatory dietary regimen. If you enjoy a pungent kick with some of your foods, substitute a little cayenne powder for black pepper (unless you are allergic to nightshades—see step 8). Cayenne contains substances that block the transmission of pain between nerve cells.

The Constituents of Medicinal Plants: An Introduction to the Chemistry and Therapeutics of Herbal Medicine Andrew Pengelly See book keywords and concepts

Flavonoids as anti-inflammatory plants', in R. Wijesekera (ed.), The Medicinal Plant Industry, CRC Press, Boca Raton. Blake, O. 1993/94, 'The tannin content of herbal teas', British Journal of Phytotherapy 3: 124-127. Bombardelli, E. and Morazzoni, P. 1995, 'Vitis vinifera L.', Fitoterapia LXVI: 291-317. Bone, K. 1995, 'Oestrogen modulation', The Modern Phytotherapist 1:8-10. Bone, K. 1997, 'Grape seed extract: the facts, the fiction and the future', Mediherb Conference, Sydney. Calomme. M., Pieters, L., Vlietinck, A. and Vanden Berghe, D.

Rational Phytotherapy: A Reference Guide for Physicians and Pharmacists volker schulz and Rudolf Hansel See book keywords and concepts

It also contains 6-12 % tannins along with flavonoids, triter-penes, and bitter principles (Wichtl, 1989). Dried peppermint leaves are used in making teas. Figure 5.7. A Harvesting peppermint {Menthaxpiperita). 5.3.2.2 Peppermint Oil Peppermint oil, obtained by steam distillation of the fresh or dried herb, is a colorless to pale green liquid with a pungent odor of peppermint. It has an initially burning taste and cool aftertaste, especially when air is drawn in through the mouth. To date, 85 chemical compounds have been isolated from peppermint oil.

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It is rich in antiinflammatory oleic acid (an omega-9 fatty acid), vitamin E, and polyphenols flavonoids. Different brands of olive oil, and olive oil derived from different types of olives, have different flavors, so it is good to try different ones. Always use extra-virgin olive oil, an indicator of high quality, and look for a date on the bottle. The olive oil is best used within a year of picking and bottling, but it can be used for cooking for two to three years.

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Phenylpropanoids: rosavin, rosin, rosarin • Phenylethanol derivatives: salidroside (rhodioloside), tyrosol • Flavonoids: rhodiolin, rodionin, rodiosin, acetylrodalgin, tricin • Monoterpines: rosiridol, rosaridin • Triterpines: daucosterol, beta-sitosterol • Phenolic acids: chlorogenic acid and hydroxycinnamic acid, gallic acids By the 1980s, Rhodiola rosea was in such demand in the Soviet Union that it became overharvested.9 With supplies dwindling, some companies began substituting other plants in products touted as rhodiola.

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It is designed to support the liver and circulatory system and assists in cholesterol output reduction and conversion of cholesterol into bile acids. • Betatene from NatureWorks. This is a dietary supplement of mixed carotenoids, including alpha- and beta-carotene, lutein, lycopene, zeaxanthin, and cryp-toxanthin. It is intended to help maintain a healthy and strong immune system. • Body Language Essential Green Foods from Oxyfresh USA.

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Ingested, these flavonoids manifest into remarkable antioxidants. They protect against free radical damage and are anti-carcinogenic. Furthermore, the flavonoid content of berries prevents both the inflammation and degeneration of collagen and other connective tissues. By protecting small blood vessels and capillaries against leaking, berries act as an inter-cellular cement. Anthocyanosides—flavonoids found in both the skin and substance of berries—potentiate the benefits of vitamin C, which, in turn, protects against the hardening of the arteries.

Prescription for Dietary Wellness: Using Foods to Heal Phyllis A. Balch, CNC See book keywords and concepts

Important phytochemicals include beta-carotene, flavonoids, and xanthophylls. Persimmon Hachiya and Fuyu are the two main varieties of this native Japanese fruit that is now cultivated commercially in the United States. The shiny skins are red-orange. The creamy flesh is tangy and sweet, with hints of plum and pumpkin flavors. The Fuyu variety is high in vitamin C. Persimmons must be fully ripe before you eat them; otherwise, they will have a bitter taste. The Fuyu variety is crisp and can be eaten like an apple; the Hachiya's flesh is soft and is best spooned from the skin.

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