Skip to main content

What are the benefits of quercetin for the human body?

 


Quercetin is a polyhydroxyflavonoid compound with various biological activities and high medicinal value. Quercetin is widely found in the flowers, leaves and fruits of plants. It is known that more than 100 kinds of Chinese herbal medicines contain quercetin, such as Sophora japonica, Sophora japonica, Paeonolus, Plantain, Ginkgo biloba, Acanthopanax senticosus, etc. It has anti-oxidative and free radical scavenging effects, as well as anti-cancer, anti-inflammatory, antibacterial, antiviral, hypoglycemic and antihypertensive, immune regulation and cardiovascular protection effects.

The effect of quercetin on the human body

1. The role of quercetin and respiratory health

Quercetin has good expectorant and antitussive effects, and has a certain antiasthmatic effect. It has been used for a long time in the treatment of chronic bronchitis. The effects of quercetin on respiratory health are achieved through multiple pathways including mucus secretion, anti-viral, anti-fibrotic, and anti-inflammatory.

Quercetin also has a wide range of anti-fibrotic effects, including anti-liver, lung, heart and kidney fibrosis, and its mechanism of action is complex, including inhibition of fibroblast proliferation, and inhibition of collagen synthesis, prevention of oxidative damage, inhibition of angiogenesis, etc. 

2. Antioxidant function of quercetin

Free radicals are normal metabolites in the body. When the free radicals in the body are excessive and unbalanced, it may lead to aging, inflammation, cancer, cardiovascular and cerebrovascular diseases, etc. Experiments have shown that flavonoids have good scavenging effects on free radicals and superoxide anions.

3. Anti-inflammatory effect

Quercetin reduces the body's immune response to allergens, inhibits IgE-mediated release of allergic mediators from mast cells and IgG-mediated histamine release, is a potent inhibitor of lipoxygenase, and reduces pro-inflammatory arachidonic Production of acid metabolites. In addition, quercetin can reduce the entry of highly antigenic proteins, antigens, and allergenic microorganisms into the body.

* Neutrophils are the most important inflammatory cells in the body's early inflammatory response, and they play a central role in the inflammatory response. Quercetin has no obvious effect on the spontaneous apoptosis of neutrophils, but it can inhibit the delay of spontaneous apoptosis of neutrophils caused by the inflammatory factor LPS; Sensitivity to inflammatory factors, so as to achieve the purpose of anti-inflammatory.


4. It has the function of skin coloring and skin protection.
The study found that the number of melanocytes increased significantly after the external application of quercetin in the epidermis of guinea pigs, which had a color-enhancing effect on the back skin of brown-yellow guinea pigs, and had the function of promoting the proliferation of melanocytes and the synthesis of melanin.
5. Cardiovascular protection
The role of quercetin in protecting cardiovascular is mainly reflected in five aspects:
A.Dilate blood vessels and lower blood pressure: For example, quercetin can inhibit the release of endothelin and reduce the tension of blood vessels, thereby lowering blood pressure.
B.Prevention and treatment of coronary heart disease: Through animal experiments, the functions of reducing the incidence and mortality of myocardial infarction and lowering blood sugar have also been found;
C.Relieve myocardial hypertrophy; quercetin can significantly inhibit the increase of total protein content of myocardial cells caused by angiotensin II, can significantly increase SOD activity, reduce MDA content, and has obvious preventive and therapeutic effects on myocardial cell hypertrophy.
D.Inhibit the proliferation and hypertrophy of vascular smooth muscle cells;
E.antithrombotic. Inhibition of thrombin causes the increase of platelet cytoplasmic free calcium [Ca2+], and inhibits platelet activation and aggregation, thereby indirectly protecting the cardiovascular system, dilating arteries, lowering blood pressure, anti-arrhythmic, inhibiting in vitro and in vivo Collagen, adenosine diphosphate, arachidonic acid (AA), etc. induce platelet aggregation and release of serotonin (5-HTP).


Comments

Post a Comment

Popular posts from this blog

What are the popular weight loss ingredients on the market?

  In the fast-paced era, staying up late, lack of exercise, and eating takeaways have become the three major habits of young people's lives. The problems of heavy oil and salt, drinking alcohol, and heavy sugar addiction are common among adults of different ages, and these bad habits can lead to obesity more or less. Losing weight has become an urgent need for adults of different ages. The plant extract industry has many raw materials with weight loss effects. The following extracts are mainly introduced: 1. Gymnema Sylvestre: Also known as Gymnema Sylvestre, a perennial woody climbing dicotyledon, mainly distributed in south-central India and southern China. 2. Mulberry leaf extract. It is made from mulberry leaf (Morus alba L.) through water extraction, microfiltration, ultrafiltration, spray drying, and other processes. It contains mulberry leaf flavonoids, mulberry leaf Polyphenols, mulberry leaf polysaccharides, alkaloids, and other physiologically active substances. 3. White ...
Post a Comment
Read more

Does green coffee bean extract help you lose weight?

Obesity is a global disease. In the global population, one out of every three people has the problem of being overweight. Overweight and obese adults are more likely to suffer from chronic diseases, including morbidity and mortality from diseases such as hypertension, diabetes and arteriosclerosis. Green coffee bean is a kind of fresh coffee bean that has not been copied. It contains chlorogenic acid, which is a plant polyphenol. It is one of the very important ingredients for weight loss. It can accelerate metabolism and eliminate fat deposits and excess sugar in cells. Break down fat and prevent excess fat from accumulating in the body. In addition, it can also improve the circulatory system of the digestive process, reduce the reabsorption of fat, and help control blood pressure, blood sugar or blood lipids. Taking green coffee bean extract to lose weight, most people will complete the whole process of losing weight without knowing it. The slimming ingredients contained in green cof...
Post a Comment
Read more

What are the applications of supercritical CO2 extraction technology in plant extraction?

  Supercritical CO2 extraction technology has the advantages of energy saving, purity, rapidity, high efficiency, and simple operation because it combines rectification and liquid-liquid extraction, and plays an important role in the extraction and separation of effective components of traditional Chinese medicine. 1. Extraction of volatile oil The volatile oil is sensitive to high heat, acid, and alkali, and is easily destroyed when extracted by traditional steam distillation, with low efficiency. At present, there is much research literature on the application of supercritical carbon dioxide to extract volatile oil, and the yield of the obtained product is high and the integrity of the components can be maintained. The researchers used organic solvent extraction (SE), steam distillation extraction (SDE), and supercritical carbon dioxide extraction (SFE-CO2) to extract celery seed oil. The results showed that the celery seed oil obtained by supercritical carbon dioxide extraction...
Post a Comment
Read more