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that synergy of vitamin C, lysine, proline, green tea extract, arginine and other micronutrients aids in healing skin wounds and reduces scar tissue (unpublished).
snipd
3 days ago
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Zinc and (oral and topical) is a trace element that promotes wound healing. A trial has presented a reduction in healing time by 43% with oral supplementation of 50mg zinc three times daily. In general doctors recommend a dosage of 10-30mg daily for about four weeks. Zinc and copper are interrelated. Thus, long term use of Zinc may cause Copper deficiency. In this case for 30mg of Zinc, 3 mg of Copper are recommended. In addition, Copper is involved too in the strengthening of connective tissue. Zinc ointments are also available in combination with other herbs/supplements.
snipd
1 week ago
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Herb & Supplement Encyclopedia: |
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Quercetin Supplement |
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Natural Sources
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Forms
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Therapeutic Uses
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Overview
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Chemistry
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Suggested Amount
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Drug Interactions
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Contraindications
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Side Effects
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References
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Additional Information
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Natural Sources: |
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| Apples, onions, red grapes (not white), red wine, tea, berries, brassica vegetables such as broccoli, and Italian yellow squash are excellent sources of quercetin, as well as many seeds, nuts, flowers, barks, and leaves. Quercetin is also found in medicinal plants including Ginkgo biloba, Hypericum perforatum (St. John's Wort), Sambucus spp. (Elderberry), and many other herbs. | ||
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Forms: |
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| Standardized quercetin extracts used in antioxidant products and multivitamin and mineral supplements. Red and yellow onion extracts and powders used in supplements. | ||
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Therapeutic Uses: |
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- AIDS
- Allergies - Anti-aging - Antibacterial - Antifungal - Anti-inflammatory - Antioxidant - Anti-retroviral - Antiviral - Asthma - Bruises - Cancer - Capillary Fragility - Cellular Regeneration - Chronic Venous Insufficiency - Circulatory Disorders - Cramps (legs) - Diabetic Complications - Free Radical Related Diseases - Gout - Hay Fever - Hemorrhoids - HIV Infection - Immune System - Leg Vein Health - Lower LDL Cholesterol - Menopausal Symptoms - Nocturnal Leg Cramps - Non-healing Ulcers - Pain (lower extremities) - Prevention of abnormal growths - Skin Ulcers - Stroke - Tumours - Vascular Disorders - Viral Infections - Ulcers (external skin ulcers) - Venous Insufficiency - Viral Infections - Wounds |
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Overview: |
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Quercetin is a water-soluble antioxidant that is widely distributed in the plant kingdom being the most abundant flavonoid. It is often found together with vitamin C in plants and enhances vitamin C activity within the body. Quercetin is best obtained from natural food sources for proper absorption. Yellow and red onions can contain up to ten percent quercetin, which accounts for their formidable therapeutic powers. Quercetin is known to possess anti-cancer, anti-tumor, anti-inflammatory, anti-bacterial, anti-fungal, antiviral, anti-ulcer, anti-allergy and anti-asthma activities and has low toxicity. Comparative studies have identified other flavonoids as having similar effects as quercetin; but quercetin usually has the greatest activity. Quercetin is a powerful antioxidant for scavenging oxygen radicals and inhibiting lipid peroxidation. Quercetin is often a major component of the medicinal activity of medicinal plants and has been shown in experimental studies to have numerous effects on the body. Quercetin has been shown to improve cardiovascular function and prevent cataracts. Quercetin also inhibits pro-inflammatory enzymes (cyclooxygenase, lipoxygenase), leukotrienes, and prostaglandins and prevents histamine release. Quercetin is additionally a strong inhibitor of an enzyme called aldose reductase found concentrated in the lens of the human eye. Aldose reductase, the enzyme which catalyzes the conversion of glucose to sorbitol, is especially important in the eye, and plays a part in the formation of diabetic cataracts. Additionally, quercetin inhibits an enzyme called xanthine oxidase that decreases the formation of uric acid, and thus it may be of value in the treatment of gout. Quercetin has also been shown to reduce oxidative damage to nerve tissues in skin, including from experimental glutathione depletion. Quercetin has been shown to have antiviral activity against HIV and other retroviruses (through inhibiting reverse transcriptase), and reduces the infectivity and cellular replication of Herpes simplex virus, polio-virus, parainfluenza virus, and respiratory syncytial virus (RSV).
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Chemistry: |
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| Quercetin (3,3('),4('),5,7-pentahydroxyflavone), is a polyphenolic compound classified as a bioflavonoid that is widely distributed in the plant kingdom. Quercetin has the same basic chemical structure as all other flavonoids, being a three-ringed molecule with hydroxyl (OH) groups attached. Different side groups (substitutions) give rise to a multitude of different flavonoids. Flavonoids often occur in foods as a glycoside, meaning they have a sugar molecule (rhamnose, glucose, galactose, etc.) attached to the center (C) ring. Quercetin is the aglycone (meaning minus the sugar molecule) of a number of flavonoids, including rutin, quercetrin, isoquercetin, and hyperoside. These molecules have the same structure as quercetin except they have a specific sugar molecule in place of one of quercetin's hydroxyl groups on the C ring, which dramatically changes the activity of the molecule. Activity comparison studies have identified other flavonoids as often having similar effects as quercetin; but quercetin usually has the greatest activity. It appears that only a small percentage of quercetin is absorbed after an oral dose, possibly only two percent, according to one study. However, a recent study of absorption in "healthy" ileostomy patients revealed an absorption of 24 percent of the pure aglycone and 52 percent of quercetin glycosides from onions. | ||
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Suggested Amount: |
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| The recommended daily dose of quercetin is 400-500 mg taken orally three times daily (typical used in clinical practice) |
snipd
1 week ago
A double-blind placebo-controlled study of 71 subjects with venous insufficiency found that grape seed OPCs, taken at a dose of 100mg 3 times daily, significantly improved major symptoms, including heaviness, swelling, and leg discomfort. [ La Revue de Medecine. Aug/Sept.1981;no.27–28: pp.1793-1802 ]
snipd
1 week ago
Increasing amounts of
vitamin C
significantly increases immune function.In 1976, Drs.Paul Chretien, T.F. Tehnniger and Robert Yonomoto showed that five grams of vitamin C daily increased the production of lymphocytes (white blood cells without granules) when the body was threatened by foreign substances, and that 10 grams daily produced an even greater effect.
snipd
1 week ago
Birch
taken as a tea and made from, the bark or leaves, is a diuretic and
anti-inflammatory herb used for gout, kidney stones, and rheumatism.
Oil and creams are used for swollen joints. Do not use if you are
allergic to aspirin.
snipd
3 weeks ago
Over the past 3 years, we have used a preparation of 70% sugar and 3% povidone-iodine with an improved vehicle developed by industry to treat 168 patients with refractory cutaneous ulcers. The patients presented with traumatic ulcers (70), venous and ischaemic ulcers (52), post-burn ulcers (35) and diabetic ulcers (11). Daily changes of the agent for 4 weeks resulted in rapid formation of granulation tissue, reduced oedema and cleaning of the wound. Measurement of the wound after the treatment showed 66.7% reduction in size and 63.6% decrease in depth. The global assessment of all patients was 'good' to 'very good' in 77.6%. Satisfactory clearing of bacterial infections was also confirmed. Adverse effects were observed in 10.7% of the cases (18) and most of them were transient smarting and tolerable irritation during the first hour. No undesirable effect on sugar metabolism was observed even in diabetic patients. This agent was easy to use, was very effective and inexpensive, and thus can be recommended for use in the treatment of cutaneous ulcers.
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snipd
1 month ago
Drinking plenty of water is another way to lower
blood
sugar
levels. Drinking at least eight glasses of water per day will also flush harmful toxins from the body, help with weight loss, and keep the skin healthy.Recent research has shown that certain herbs can help lower
blood
sugar
levels as well.Taking
ginseng
after meals has been shown to regulate
blood
sugar
levels. Other helpful herbs include
yarrow
, huckleberries, cinnamon powder, and
licorice
extract.
snipd
1 month ago
Vitamin E, iron, and
zinc
, has been reported to improve
wound
healing.
...
snipd
2 months ago
snipd
3 months ago
A combination of Saw Palmetto, Nettle, Curcumin and Quercetin significantly improves treatment outcome of prulifloxacin in bacterial prostatitis patients.
snipd
3 months ago
A fermented soybean (natto) and astragalus combination stimulates hyaluronic acid synthesis in human skin cells.
snipd
3 months ago
