Cyber Heroes

In a greenhouse, Xiang Shan and Niaguti are wearing cotton jackets and sitting at a table.

Yoggmov also wears similar clothing.

However, the difference is that the cotton coats of Xiang Shan and Niyaguti have soaked up water and are very cool.

Cotton keeps warm because of its fluffy structure, which can retain a lot of air, which is a poor conductor of heat. But cotton itself is very absorbent and retains water. Water has a huge specific heat capacity and heat transfer speed is also fast. When water evaporates from the cotton clothes, it also absorbs a lot of heat from the human body.

Therefore, there are pitiful persons who are frozen to death wearing wet cotton clothes every winter.

Yoggmov slanted his eyes and looked towards the two of them: "You two...Isn't it too heavy?"

"The lining of the clothes is provided by the latest fabrics from cooperative enterprises, which guarantees the wicking of perspiration. It is breathable and can isolate a lot of moisture from deepening." Xiang Shan picked up the iced carbonated drink on the table, took a sip, and said: "Isn't I calling everyone to explore the coexistence model of benchmark people in Homo sapiens society"... and I think it’s more painful to hit people in this suit."

Niya Guti nodded, said: "Well, I still do daily exercise."

There is a visibly hostile tone in his tone.

Yoggmov felt that if he said something wrong this time, he might really be beaten.

Xiang Shan seems to have a good temper, but after getting acquainted with him, it is not difficult to find that this guy is in the bones as hot as a fire. His kind side is sometimes a disguise, sometimes it is the principle of "you are happy and everyone is happy".

But after the real anger, this guy will express his anger in the most direct way.

Yoggmov feels it's okay to be beaten. More than a decade earlier, he and Xiang Shan also had a fight when they didn't agree with each other.

But it is better not to fight today.

He said: "I invite you to come over to talk about my new plan..."

"Listen well, if you hear anything that cannot be made public this time , I smashed this table on you on the spot." Xiang Shan pointed at Yoggmov.

"Well, let me talk about two options." Yoggmov said: "I will start with the alternative option D..."

" Wait a minute." Xiang Shan raised his hand: "You told Mr. Lu the other day about babies or pregnant women..."

"Oh, yes!" Yoggmov nodded.

"Um... first ask, is plan D a "baby" or a "pregnant woman"?"

"Pregnant woman." Yoggmov said.

Niyaguti said: "You mean, start with the mechanism of the fetus inhibiting the maternal immune system?"

Yoggmov nodded: "It is true. For the mammalian mother In other words, the fetus in the body is a'child', but it is also a'foreign body with genetic differences'. The reproductive behavior of mammals is actually a phenomenon similar to'parasitism'."

Xiang Shan rubbed it. Rubbing his face: "I think this sentence will be besieged by thousands of people."

Yoggmov doesn't care: "There are always idiots who think that scientists have found out the'maternal love gene' or'the neural mechanism that produces maternal love. 'It will detract from the greatness of maternal love..."

Xiang Shan waved his hand: "Okay, you continue to talk about your plan."

"Where did you go? Oh, yes, 'Pregnancy' is a phenomenon that has the characteristics of'parasitism'. After the fetus enters the mother's body, it should be attacked by the mother's immune system. But the fetus can suppress the mother's immune function-just like a parasite suppresses the host's immunity The function is the same."

"Steriosteroids and alpha-fetoprotein have obvious inhibitory effects on lymphocytes. Gestation zone proteins can inhibit a variety of immune cells..."

Niya Guti shook his head: "This is very difficult. The fetus will not be rejected by the mother, mainly because the mother will actively suppress its rejection reaction. In addition, the blood circulation of the fetus is not directly connected to the mother, and the contact surface between the two sides has a trophoblast. In addition, there is also the placenta."

Yoggmov was a bit dissatisfied: "I haven’t finished. The antigens produced by the trophoblast are immunosuppressive factors, and even the role of maternal regulatory T cells. I consider Here it is. The only impossible reappearance is the glycoprotein on the surface of the trophoblast and the placental barrier."

"The changes in regulatory T cells should begin after the male gametes enter the female body." Yaguti said: "What do you mean..."

"With a virus, only a protein shell is used to present the benchmark human antigen to regulatory T cells." Yoggmov put his hands on his chin: "Estrogen, progesterone, androgens can increase the concentration of regulatory T cells significantly."

Niyaguti looked at Xiang Shan.

Xiang Shan touched the chin: "This will cause endocrine disorders in the subject, right?"

Yoggmov did not speak.

"After all, can the male body accept this therapy?"

Yoggmov said: "Women can definitely."

"That what... nourishment Is there a large proportion of glycoproteins on the surface layer of cells in this mechanism?"

"If it is broken down by enzymes, the abortion rate of the little white mouse will become very high..."

Xiang Shan rubbed his face: "I probably understand why it should be an alternative. It is true... Pregnant women actually have certain immunity. If pregnant women get sick during pregnancy, the immune system will be reactivated. , The miscarriage rate will be higher... you don’t even need to use a sterile ward? The hospital feeling is well controlled, and the general ward is enough? It doesn’t feel very safe. How about the cost?"

" The biosynthesis routes of hormones, alpha-fetoprotein, and pregnancy zone proteins are very clear. Needless to say, estrogen, progesterone, and androgen are much cheaper than plan B."

Xiang Shan nodded: "It's an advantage-what about your'baby'?"

Yoggmov both hands crossed near chest, began to feel proud: "speaking of which, do you know Chimera? "

"Chimera (Chimera)? Greek mythology or Azeroth? Or what science fiction concept in science fiction?"

"Very old biology term, embedded Fit.” Niyaguti estimated that Yoggmov was disdainful of explanation, so he added: “Immunological meaning refers to the existence of two or more cell lines with different chromosomal composition in a body at the same time, and they can tolerate each other. , There is no rejection reaction, and they are in a chimeric state."

"Scientists have long discovered that when the embryo’s immunity is not yet complete, injecting heterologous cells into the embryo, these Cells can even grow with the embryo. The two cells are relatively distant...well, I remember there should be a chimera of goat and carrot."

Xiang Shan was surprised: "This can also live?"

"According to ethics, this type of embryo is destroyed after a certain stage and is not born. It should die at a certain stage of development? Maybe it may be born with an Innate defect. But in the embryo Stage, it is alive and well."