Urban Inventor

phone-reading

During this 17-hour space trip, the chief did not rest, and Zhang Wei was naturally too embarrassed to rest. Therefore, when the "Future" spacecraft returned to Earth, he ignored the reporters who asked him questions , went directly to the scientific research building, and fell asleep.

too tired.

When he woke up, it was already past five o'clock in the afternoon. After washing and getting dressed, he habitually turned on the dark blue 1 to see if there were any missed calls.

As soon as Deep Blue 1 started, the smart assistant Xiaolan reminded him that his mother left him a holographic video message.

Zhang Wei immediately asked Xiaolan to play this holographic video message. It turned out that his mother asked him to go home for dinner at night and said that he had something to discuss with him.

"What will happen?"

Zhang Wei couldn't help being a little curious, and then brought two intelligent robot bodyguards and drove the flying car to the villa where his parents lived.

The dinner was very sumptuous, and the food was cooked by my mother herself. This is also Zhang Wei's favorite taste. Although the food made by the intelligent robot is also very good, it still lacks the taste of home.

"Mom, what do you want to tell me?"

After dinner, Zhang Wei asked.

"Of course it's your marriage. In less than five months, you and Xiaoyu are going to get married, so you should start preparing."

The mother smiled and said that she had been looking forward to her son's marriage as soon as possible, and then she would hug her grandchildren, and now the expectation is finally coming to an end.

"There are still more than four months. Does it need to be so early?"

Zhang Wei was surprised.

"How early is this? It's not early at all! You think that a wedding is as simple as inviting relatives and friends to have a meal and drink. There are so many things to do."

My mother snapped her fingers and said, "You have to decide the date, scale, form, and ceremony style of the wedding in advance; determine the wedding budget; draw up the guest list, determine the best man and bridesmaid, determine the officiant and witness; determine the wedding venue, wedding hotel, Wedding company; custom dresses; distribution of invitations..."

My mother talked for more than ten minutes before she finished.

Zhang Wei's head got dizzy when he heard it, and it was the first time he found out that getting married was such a troublesome thing, but it was a major event in his life, so he couldn't be careless in the slightest. Not only can it not be sloppy, but it must also be done beautifully.

At this time, my mother said again, "You don't have to worry about the details, you can hire professionals to deal with them, you just need to tell them what you want and like, but the guest list, best man and bridesmaid, officiant, and witness It's up to you to decide."

Hearing this, Zhang Wei breathed a sigh of relief, and quickly promised his mother that he would deal with this matter as soon as possible.

After returning to the villa where he lived, Zhang Wei began to seriously consider his wedding.

At the beginning of the year, he participated in the wedding of Liu Hai, Qin Xiaobu, and Zhang Zhijian. At that time, he decided to make his wedding a wonderful wedding of the century, and it must be different.

How to be different?

Zhang Wei thought for a long time, and suddenly his eyes lit up. If this wedding is held on the moon, it cannot be said that there will be no one in the future, but it will definitely be unprecedented. It will definitely be unforgettable for everyone including him and Ren Huaiyu!

Ok, deal.

The corner of Zhang Wei's mouth curled into a smile. Only he can have such a grand wedding now, because other people can't even go to the moon. In addition, since it is decided to hold a wedding on the moon, the wedding must not be held in an open field. It seems that it is necessary to build a building on the moon for my wedding. As for the name of this building, it is called Guang Cold Palace!

After another two days of busy work, Zhang Wei finally settled the preparations for the wedding. At this time, he received good news from Dr. Summitt. During the research process of alien blood, Dr. Summitt had an important Find.

Future technology company, experimental base, inside a laboratory.

"Dr. Summitt, are you saying that this alien may be a race with a life span of more than five thousand years?"

Zhang Wei was wearing a white coat,

Looking at Summit in front of him, he asked.

"Doctor, you know that the lifespan of human beings is related to the number of cell divisions."

Samit said excitedly.

Zhang Wei nodded. He has a very rich reserve of knowledge, so he naturally knows this.

This point of view was put forward by the American scholar Halfley in 1961. Based on experimental research, Helfeli found that during the growth process of animal embryo cells, the number of divisions is regular, and aging and death will occur at a certain stage. This is related to the number and cycle of cell division. The multiplication of the two is its natural lifespan.

The specific experimental situation of Helfley is as follows: He put the fetal cells in the culture medium to divide again and again, and reproduced generation after generation, but when the cells divided to 50 generations, all the cells were old and dead. On the basis of a large amount of experimental data, he proposed to calculate the human life span based on the number of cell divisions, and the average cycle of each division of human cells is about 24 years. Based on this calculation, the human life span should be 120 years. The number of cell divisions of a chicken is 25 times, and the average period of each division is one year and two months, and its life span is 30 years. The number of mouse cell divisions is 12 times, the division cycle is 3 months, and its life span is 3 years.

Summitt said excitedly, "After I tested and analyzed the alien cells you provided, I found that alien cells are very similar to human cells, with almost the same structure, and the division cycle is similar to human cells. In subsequent experiments In the process, I used hormones to stimulate the alien cells to accelerate division, and finally got a surprising discovery that the alien cells will not senile and die until 2100 generations after division, which means a lifespan of more than 5000 years."

"It can divide to 2100 generations, it should be related to telomeres and telomerase, Dr. Summitt, have you detected the telomeres and telomerase of alien cells?"

Zhang Wei asked.

Telomere is a cap-shaped thing that exists at the ends of the nucleus of humans and some animals. It is actually a fragment of DNA. Scientists have found through research that every time a cell divides, the telomere shortens a little. When the telomere length shortens to a certain extent, the cell will stop dividing, leading to aging and death. That is, the number of cell divisions is limited by telomeres. Therefore, some scientists believe that the length of telomeres determines the lifespan of organisms, and the longer the telomeres, the longer the lifespan.

In the course of the research, the scientists also discovered that there is a special reverse transcriptase - telomerase in the cells. The existence of telomerase can repair the defect of dna replication, so that telomeres will not be lost due to cell division, and the number of cell divisions will increase. Therefore, the more active telomerase is in a cell, the more telomere length can be maintained.

According to these research results, some scientists believe that if the activity of telomerase can be maintained at a high level, the length of telomeres can be maintained, and the process of cell aging will be delayed, and even human beings can live forever.

According to the telomere theory, the oncologist Ronald Durbinho of Harvard University successfully reversed the aging process for the first time through mouse experiments. In the experiment, Debinho used a special method to make the mice age in advance, so that the skin, brain, internal organs and other organs of these animals were similar to those of an 80-year-old man; After taking the drug for 2 months, the mice grew a large number of new cells, rejuvenated and regained their vitality. What is even more surprising is that the old male rats regained their fertility and reproduced again.

However, there is no free lunch in the world. Using this method to delay aging may also increase the risk of cancer. Studies have shown that increasing the activity of telomerase in mice makes them more prone to skin and breast cancer.

As far as Zhang Wei knows, some international pharmaceutical giants have also studied anti-aging drugs based on the telomere theory, but the experimental results were disappointing: "The experimental subjects grew many deformed organs." In the end, this project could only be cut off, and the experimental results were disappointing. The information was also sealed and not disclosed to the outside world.

This is why Zhang Wei never considered the telomere theory when he studied the genetic evolution fluid. ***book*** (Sikushu)