I don't know how many people have seen the movie "Lover at the End of Time", or many people haven't even heard the name, but it doesn't matter. Bian Xiao will briefly talk about the content of this movie here. The film tells the story of a beautiful young girl (Dai Shi) who miraculously won the story of never aging and staying young because of an accident. In the film, Lin Dai, the heroine played by the famous actor Blake Lively, is constantly changing in the years, and is the harvester of the male gods of each era. The girl wants to know if she can laugh in her dream. And the heroine kept this state not just for a period of time, but for 90 years, nearly a century. Divines, who likes this movie, can take time to watch it.

In fact, through this film, we will also find a truth: art comes from life, and often comes from life. In real life, Bian Xiao believes that having an immortal face should be the dream of all gods. When wrinkles climb to the corner of your eyes, your skin is no longer delicate, and years will always leave an indelible mark on a woman's face. Fortunately, however, with the continuous development and progress of modern medicine, various methods of "delaying aging" have emerged. For example, stem cell anti-aging therapy, which has always been very popular, is the only facial rejuvenation method given by God and called "time machine".

What are stem cells?

In fact, stem cells can be understood as cells that can renew themselves indefinitely or forever, because they can differentiate into one or more functional cells under certain conditions, and they also have the potential function of regenerating various tissues and organs and the human body. In the medical field, people will call it "universal cell" because it has the ability of replication. Theoretically, stem cells can be added to any damaged organ, and then the stem cells will gradually become adult cells and complete the repair. For the current medical and beauty industry, when a person's fibroblasts and collagen gradually start to lose, they can be supplemented by the repair function of stem cells.

Southern Hospital of Southern Medical University conducted a clinical study on stem cell-assisted fat transplantation. It was found that the survival rate of fat transplantation with stem cells could be increased from 50% to 70%, and the incidence of cysts, nodules and calcification in implanted fat decreased from 25% to 65,438 00%. Dr. Lu, chief physician of plastic surgery at Southern College of Southern Medical University, said in an interview: Although stem cell beauty can't change a person from 50 to 20 years old, it still has a chance to reach the level of about 40 years old and can last for many years.

Relationship between stem cells and aging

In fact, of the more than 200 kinds of cells that make up the human body, the vast majority are terminally differentiated cells (stereotypes). After entering terminal differentiation, cells will form mature cells that perform specific functions, so they will lose the ability to divide again and eventually die of aging. Common red blood cells, mature epidermal cells and neurons are terminally differentiated cells. However, the body will still retain some undifferentiated primitive cells (stem cells), which will continue to produce new stem cells under certain conditions, thus maintaining the dynamic balance of the growth and decline of tissues and organs. However, once this balance is broken, that is, when the process of decline is greater than the ability to regrow, it will age. On the contrary, if cells have strong regenerative ability, the process of tissue aging will be delayed or even blocked.

1999, stem cell anti-aging was also selected as one of the annual 10 scientific progress by American Science magazine, which triggered the "regenerative medicine" revolution. Therefore, the anti-aging effect of stem cells depends on whether enough ideal stem cells can be mobilized.