Senile spots, medically known as "senile pigment spots." It refers to a kind of lipofuscin spot on the skin of the elderly, which is more common in the elderly and is also called "longevity spot". The results of modern medical research show that this nickname is not true, and it is not a sign of longevity. Experts found that with the increase of the average age of the population, senile plaques are not common among the elderly, accounting for only 27%.
2. What does senile plaque represent?
Senile plaque is a symbol of human visceral aging. Leave marks on the organs that people can't see, causing harm. For example, if it appears on brain cells, it will cause loss of mind and memory; Aggregation on the blood vessel wall will lead to vascular fibrosis, causing hypertension, arteriosclerosis and heart disease. Because this lipofuscin is the product of cell oxidation, once it accumulates too much, it will affect organ function and make people gradually aging. Therefore, senile plaque is the information of visceral aging. of course，
It is also a morphological sign of human aging. The appearance of senile plaque is not isolated, it is often accompanied by other visible morphological aging indicators, forming an aging image.
3. Discussion on the causes of senile plaque:
After entering the age of 60 ~ 70, with the growth of age, the number and area of senile plaques can gradually increase. So, how is senile plaque produced? At present, there are three opinions: the first one thinks that after entering old age, the metabolic function of cells declines, and the body fat is easy to oxidize, resulting in senile plaques. This pigment can not be excreted, so it is deposited on the cell body, thus forming senile plaques. The second view is that when people get old, the metabolism in the body begins to decline, the decline of cell function accelerates year by year, and blood circulation tends to slow down. In addition, the changes in the diet structure of the elderly and the imbalance in the fat intake ratio of animals and plants have prompted a tiny brown particle called lipofuscin to accumulate in the basal cells of the skin. This brown particle is the product of lipid peroxidation. Aging tissues and cells lose their proper functions of decomposition and rejection, resulting in excessive brown particles accumulating in the basal layer of local cells, thus forming senile plaques on the surface of human body. The third view is that the activity of superoxide dismutase (SOD), which has anti-peroxidation effect in the elderly, decreases and the free radicals increase relatively, which is the result of long-term poisoning of the body by free radicals and their induced peroxidation.
4. Can senile plaque be prevented?
In recent years, senile plaque has attracted more and more attention from medical scientists. I hope to control its production and prolong human life. Scholars tried to add various antioxidants, and the effect was unexpectedly good. At present, studies have proved that vitamin E is an ideal antioxidant, which can prevent unsaturated fatty acids from producing lipofuscin. From the healthy plasma examination of the elderly over 60 years old, it is found that the content of vitamin E decreases with the increase of age, which shows that vitamin E has a certain relationship with the activity of chemical free radicals. Animal experiments show that vitamin E can prevent lipofuscin production, scavenge free radicals and prolong life. Therefore, in addition to taking a certain amount of vitamin E, you can also eat foods rich in vitamin E, such as vegetable oil, cereals, beans, dark green plants and animal foods, such as liver, eggs and dairy products.
It is necessary to adjust the intake ratio of animal fat and plant fat (the normal ratio is 1: 2). Although plant fat contains more unsaturated fatty acids, eating vegetarian food alone can't stop the increase of brown pigment content, so we should change our eating habits of refusing meat and being partial to food. In addition, to maintain a happy mood, the "two stools" are unobstructed. Eat more fresh vegetables, especially onions, radishes, celery, spinach, almonds and jujubes. Taking vitamin E 100 IU and vitamin C 300 ~ 500 mg every day for 2 years can obviously slow down the development of atherosclerotic plaques and senile plaques. In addition, the body should avoid long-term ultraviolet radiation. Don't scratch senile plaques with your hands, and don't abuse irritating topical drugs. If necessary, you can choose 5% fluorouracil ointment, liquid nitrogen freezing or laser treatment under the guidance of a doctor to eliminate senile plaque.
According to American experts, the appearance of age spots on the faces of actors and singers is 8 ~ 10 years later than that of ordinary people. This should be attributed to their more facial muscle movements. Therefore, as long as people chew gum 10 ~ 15 minutes every day, or chew slowly during meals, they can also improve facial blood circulation and skin metabolism and delay the occurrence of senile plaques. In addition to drugs, physical exercise can also be used as one of the important measures to prevent this kind of senile pigment from depositing on blood vessels and prevent vascular degeneration.