Cyber ​​Heroes

Chapter 591 Yawgmoth's "Pregnant Woman" and "Baby"

In a greenhouse, Xiang Shan and Niya Guti were wearing cotton jackets and sitting at a table.

Yawgmoth also wears a similar outfit.

But the difference is that Xiang Shan and Niya Guti's cotton coats have been soaked with water and are very cool.

The reason why cotton keeps warm is that it has a fluffy structure that can retain a lot of air, and air is a poor conductor of heat.But cotton itself is very absorbent and water-retaining.Water has a huge specific heat capacity and can transfer heat quickly.When water evaporates from the cotton coat, it also absorbs a lot of heat from the human body.

Therefore, there are poor people who freeze to death wearing wet cotton clothes every winter.

Yawgmoth squinted at the two of them: "You two...don't think it's too heavy?"

"The inner lining of this clothes is the latest fabric provided by the partner company, which ensures perspiration and breathability and at the same time can block the penetration of a lot of water." Xiang Shan picked up the iced carbonated drink on the table, took a sip, and said, "Isn't it calling for everyone to explore recently? 'The coexistence model of benchmark humans in a Homo sapiens society'...and I think it should be more painful to hit people in this suit."

Niya Guti nodded, and said, "Well, I still exercise regularly."

There was a hint of hostility in the tone of the two of them.

Yawgmoth felt that if he said the wrong thing this time, he would probably be beaten.

Although Xiang Shan seems to have a good temper, after getting to know him well, it is not difficult to find that this guy is very hot-tempered in his bones.His kind side is sometimes a disguise, and sometimes it is the principle of "you are happy, I am happy, everyone is happy" in life.

But after being really angry, this guy will also express his anger in the most direct way.

Yawgmoth thought it was all right to be beaten up.Ten years earlier, he and Xiang Shan had a relationship where they would fight whenever they disagreed.

But today it is better not to fight.

He said: "I invite you to come here, because I want to talk about my new plan..."

"Listen well, if I hear something that cannot be made public this time, I will throw this table on you on the spot." Xiang Shan pointed at Yawgmoth.

"Well, let me talk about two options." Yawgmoth said, "Let me talk about option D as an alternative first..."

"Wait a minute." Xiang Shan raised his hand: "A few days ago you told Mr. Lu about babies and pregnant women..."

"Oh, yes!" Yawgmoth nodded.

"Hmm... Let me ask you first, is Plan D a 'baby' or a 'pregnant woman'?"

"Pregnant woman," Yawgmoth said.

Nia Guti said: "You mean, start with the mechanism by which the fetus suppresses the mother's immune system?"

Yawgmoth nodded: "That's true. For a mammalian mother, 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 kind of The phenomenon of 'parasitism'."

Xiang Shan rubbed his face: "I think if you say this sentence, you will be besieged by thousands of people."

Yawgmoth didn't take it seriously: "There are always some idiots who think that scientists who find out the 'maternal love gene' or the 'neural mechanism that produces maternal love' will belittle the greatness of maternal love..."

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

"What's the point? Oh, yes, 'pregnancy' is a phenomenon that has some characteristics of 'parasitic'. 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— — as if the parasite suppressed the immune function of the host.”

"Steroid hormones and alpha-fetoprotein have a significant inhibitory effect on lymphocytes. Zonal protein of pregnancy can inhibit a variety of immune cells..."

Nia Guti shook her head: "It's very difficult. The fetus will not be rejected by the mother, mainly because the mother will actively suppress her own rejection. In addition, the blood circulation of the fetus is not directly connected with the mother. The isolation of the trophoblast. Plus the placenta."

Yawgmoth was a little dissatisfied: "I haven't finished yet. I have considered the antigens produced by the trophoblast, immunosuppressive factors, and even the role of maternal regulatory T cells. The only thing that cannot be reproduced is the surface of the trophoblast. The glycoprotein has a barrier with the placenta."

"The change of regulatory T cells should start after the male gamete enters the female body." Nia Guti said, "You mean..."

"Use a virus, only cover a protein shell, and present the antigen of the reference person to the regulatory T cells." Yawgmoth rested his hands on his chin: "Estrogen, progesterone, androgen and the like can make the regulatory T cells The concentration of cells rose dramatically."

Niya Guti looked at Xiang Shan.

Xiang Shan touched his chin: "Will this cause endocrine disorders in the subject?"

Yawgmoth said nothing.

"At the end of the day, can a male body accept this therapy?"

Yawgmoth said, "Women can certainly."

"What...is the glycoprotein on the surface of trophoblast cells a large proportion in this mechanism?"

"If it is decomposed with enzymes, the miscarriage rate of mice will become very high..."

Xiang Shan rubbed his face: "I probably understand why it should be used as an option. Indeed...pregnant women actually have a certain degree of immunity. If a pregnant woman suffers from any illness during pregnancy, the immune system will be reactivated, and the miscarriage rate will decrease. Higher...you don't even need to use a sterile ward? The hospital infection is well controlled, and the general ward is enough? It doesn't feel very safe. What about the cost?"

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

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

Yawgmoth crossed his arms and began to feel complacent: "Speaking of which, do you know 'Chimera' (Chimera)?"

"Chimera? Greek mythology or Azeroth? Or a sci-fi concept in some sci-fi work?"

"It's a very old biological term, chimera." Nia Guti guessed that Yawgmoth didn't bother to explain it, so she added: "The immunological meaning refers to a body with two or more Cell lines with different chromosomal composition exist at the same time, can tolerate each other, do not produce rejection, and are in a chimeric state with each other."

"Scientists have discovered very early that when the embryo's immunity is not complete, injecting heterologous cells into the embryo, these cells can even grow with the embryo. The relationship between the two types of cells is relatively distant... Well, I remember it should be There are chimeras of goats and carrots."

Xiang Shan was startled: "Can I live?"

"According to ethics, this type of embryo was destroyed after a certain stage, and it was not born. It should die when it develops to a certain stage, right? Maybe it may be born with birth defects. But in the embryonic stage, it lived very well of."

(End of this chapter)