1. The study on the hypolipidemic effect of Pu 'er tea shows that both raw tea and cooked tea have obvious effects on preventing hyperlipidemia, and the effect of cooked Pu 'er tea is obviously higher than that of raw tea, which may be related to theabrownins, tea polysaccharides and flavonoids contained in cooked Pu 'er tea. At the same time, unlike drug treatment, using Pu 'er tea to prevent hyperlipidemia has fewer side effects.
2. The anti-atherosclerosis effect of Pu 'er tea is mainly reflected in the following five points:
(1) Pu 'er tea can reduce the weight of experimental animals with atherosclerosis caused by genetic factors.
(2) Pu 'er tea can effectively regulate the blood lipid level of experimental animals with atherosclerosis caused by genetic factors.
(3) Pu 'er tea can reduce the atherosclerosis index (AI) of mice with atherosclerosis caused by genetic factors.
(4) Pu 'er tea can reduce the risk of cardiovascular disease in mice with atherosclerosis caused by genetic factors.
(5) Pu 'er tea can reduce the plaque formation of experimental atherosclerosis mice caused by genetic factors.
To sum up, it can be concluded that Pu 'er tea has anti-atherosclerosis effect.
3. Pu 'er tea contains a variety of tea polyphenols and polysaccharide compounds, which have multiple functions such as anti-inflammatory and anti-oxidation. At the same time, Pu 'er tea can be used as an auxiliary health care function of diabetes, which can increase the insulin content of type I diabetes, improve the sensitivity of insulin receptor of type II diabetes, and adjust the pathogenic factors well, so it can be used as a good auxiliary means.
4. The research results of Pu 'er tea on SD rat obesity model:
Pu 'er tea can control the weight gain of experimental rats and reduce the weight of abdominal fat and the size of adipocytes in obese rats.
Evaluation and research results of Pu 'er tea in preventing obesity in SD rats;
1) Pu 'er tea can prevent obese rats from gaining weight induced by high-fat diet.
2) Pu 'er tea can prevent the accumulation of abdominal cavity and the increase of adipocyte volume in obese rats induced by high-fat diet.
3) Pu 'er tea can prevent the increase of blood lipid level in obese rats induced by high-fat diet.
Comparative Study on the Weight-reducing Effects of Pu 'er Tea, Tieguanyin Tea and Black Tea on Obese Rats;
1) Pu 'er tea, Tieguanyin tea, black tea and Xuezhikang can effectively inhibit the weight gain of obese rats, among which Pu 'er cooked tea has the best effect.
2) Pu 'er cooked tea and Tieguanyin can reduce the weight of fat around the organs of obese rats caused by high-fat diet, and Pu 'er cooked tea has the best effect.
3) Pu 'er cooked tea and Tieguanyin can obviously avoid the excessive accumulation of abdominal fat in obese rats.
Comprehensive experiments show that:
Pu 'er tea, Tieguanyin tea and black tea all have weight-reducing effects on obese model rats, among which cooked tea has the best effect.
5. The results of prevention and treatment of nonalcoholic fatty liver by Pu 'er tea show that:
From the gross specimen and liver histopathology, Pu 'er tea can obviously improve the steatosis of experimental rats.
Experimental study on the protective effect of pu' er tea on alcoholic fat;
1) Pu 'er cooked tea can protect rat cell membrane and mitochondrial membrane from alcohol damage.
2) Pu 'er tea can effectively inhibit lipid peroxidation in rats with alcoholic fatty liver and avoid oxidative damage caused by alcohol.
3) Pu 'er cooked tea can effectively inhibit insulin resistance caused by alcoholic fatty liver.
4) Pu 'er cooked tea can effectively prevent the occurrence and development of alcoholic fatty liver.
5) Pu 'er cooked tea can prevent or delay fatty degeneration of liver tissue in alcohol experimental rats.
Study on the preventive and therapeutic effects of Pu 'er cooked tea, Tieguanyin tea and black tea on nonalcoholic fatty liver;
1) From the gross specimens, both Pu 'er cooked tea and Tieguanyin can obviously improve the steatosis of experimental rats, among which Pu 'er cooked tea has the best effect.
2) Through pathological examination, both Pu 'er cooked tea and Tieguanyin can obviously improve the steatosis of experimental rats, among which Pu 'er cooked tea has the best effect.
3) Pu 'er cooked tea, black tea and Tieguanyin can effectively prevent the occurrence and development of nonalcoholic fatty liver.
The results show that drinking Pu 'er tea is a simple and easy method to prevent the occurrence and development of fatty liver.
6. Research results of free radical scavenging effect of Pu 'er tea:
1) Pu 'er tea can strengthen the first line of defense of endogenous antioxidant system in vivo.
2) Pu 'er tea can reduce the content of malondialdehyde, the final product of lipid peroxidation.
The results show that Pu 'er tea can enhance the activity of antioxidant enzymes, reduce lipid peroxidation products and prevent arteriosclerosis, and can be used as a natural nontoxic health care product or health food raw material for reducing blood lipid and antioxidation.
7. Comprehensive evaluation experiment of radiation protection efficacy of Pu 'er tea;
1) Pu 'er tea can improve the immunity of irradiated mice.
2) Pu 'er tea can protect the hematopoietic system of irradiated mice from radiation damage.
3) Pu 'er tea can alleviate the free radical damage in irradiated mice.
Discussion on radiation protection of pu' er tea;
1) Pu 'er tea can increase the radiosensitivity of cancer cells and decrease the radiosensitivity of normal cells.
2) Pu 'er tea can aggravate the radiation damage of cancer cells and protect the DNA damage of normal cells.
The experimental results show that Pu 'er tea, as a safe and healthy drink, has an effective protective effect on low-dose and long-term radiation hazards in daily life.
8. Pu 'er tea has anti-hypoxia effect. Experimental research results:
1) Pu 'er cooked tea can prolong the survival time of experimental mice in closed containers;
2) Pu 'er tea does not affect the survival time of experimental mice poisoned by sodium nitrite;
3) Pu 'er tea does not affect the survival time of mice with acute cerebral ischemia and hypoxia;
4) Pu 'er cooked tea can alleviate the brain edema caused by hypoxia in mice;
5) Pu 'er tea can effectively improve the antioxidant capacity of brain tissue in mice with acute hypoxia;
6) Pu 'er tea can obviously improve the swelling of hippocampal cells in mice with hypoxic-ischemic injury.
The experimental results show that all the tested Pu 'er cooked tea, Pu 'er raw tea and green tea have no hypoxia tolerance, but the tested Pu 'er tea can alleviate the brain edema caused by hypoxia in mice.
9. The anti-fatigue research results of Pu 'er tea show that:
1) Pu 'er tea can enhance the endurance of experimental mice.
2) Pu 'er tea can delay fatigue and improve the body's adaptability to load;
3) Pu 'er tea can provide a good energy reserve for physical exercise.
The experimental results show that Pu 'er tea has good antioxidant activity in vitro and in vivo, which can significantly improve the activity of antioxidant system enzymes in vivo, enhance the oxidative protection ability of antibodies, scavenge oxygen free radicals in vivo, prevent cell membrane peroxidation, and effectively prevent animal cell free radical damage.
10, anti-aging effect of Pu 'er tea;
1) Pu 'er tea can increase the anti-infection "arsenal" of aging rats.
2) Pu 'er tea updates the anti-infection "weapons and ammunition" of the aged rats by "expelling the old and absorbing the new"
3) Pu 'er tea can improve the quality of anti-infection "weapons and ammunition" of aging rats.
4) Pu 'er tea can increase the "safety monitoring power" of aging rats-the number of naturally killing NK cells.
5) Pu 'er tea can inhibit the body damage caused by excessive immune response in aging rats.
6) Pu 'er tea can inhibit the latent injury caused by immune response in aged rats-"inflammation".
The experimental results show that:
Pu 'er tea contains a variety of anti-oxygen stress substances, such as different polyphenols. These substances have been proved to be effective against oxidative stress of aging. At the same time, Pu 'er tea also contains a variety of polysaccharides, which have been proved to stimulate the proliferation of lymphocytes in the body. In addition, there are some anti-inflammatory substances in Pu 'er tea, such as flavonoids and iridoids, which have strong anti-inflammatory effects and are especially suitable for latent inflammation in the elderly.
1 1. The research results of anti-aging oxidative stress of Pu 'er tea show that:
1) Pu 'er tea can eliminate "garbage" malondialdehyde in the heart, liver and brain of aging mice;
2) Pu 'er tea can improve the activity of endogenous free radical scavengers in heart, liver and brain of aging mice;
3) Pu 'er tea has the function of strengthening the body's multiple defense lines against injury.
4) Pu 'er tea extract can remove harmful "garbage" from the blood vessel wall of the elderly.
The comprehensive experimental results show that Pu 'er tea has anti-oxidative stress effect.
12. Study on the effect of Pu 'er tea on cholesterol absorption Results: Pu 'er tea can inhibit the absorption of cholesterol in intestine and increase the content of cholesterol in feces.
Experimental study on cholesterol synthesis by Pu-erh tea;
1) Pu 'er tea extract can significantly inhibit the cholesterol synthesis activity in HepG2 cells.
2) Pu 'er tea can inhibit the expression or production of cholesterol synthase in liver cells, and play a role in lowering plasma sterols.
The experimental results show that Pu 'er tea can inhibit the absorption of cholesterol by intestinal mucosa and the synthesis of cholesterol by liver, which is an effective and safe treatment. The water extract of Pu 'er tea can not only inhibit the absorption of cholesterol, but also synthesize cholesterol.
13, the study of Pu 'er tea on free calcium metabolism and bone mineral density showed that:
1) Pu 'er tea does not affect the amount of calcium ions obtained from food by experimental rats;
2) Pu 'er tea will not reduce the content of calcium ion in serum of rats who drink tea for a long time;
3) Pu 'er tea does not promote the excretion of calcium ions in the feces of experimental rats;
4) Pu 'er tea will not reduce the calcium absorption rate of rats who drink tea for a long time;
5) Pu 'er tea will not reduce the bone mineral density of femur in rats who drink tea for a long time.
The experimental results show that drinking Pu 'er tea for a long time will not promote the loss of calcium and phosphorus in experimental rats, and will not cause the decline of bone mineral density and osteoporosis.