Experimental animals are divided into disposable and non-disposable. Disposable is easy to understand, such as in anatomy classes in the anatomy room, the animal is caught and placed on the operating table for dissection and observation. After the dissection, the animal will be humanely disposed of in a timely manner if there is no other use for it. Most experiments use non-disposable experimental animals. After doing some experimental operations on the experimental animal, it is placed in a cage for further feeding and observation. When the time is up, it is dissected and observed to obtain the experimental results and then humanely disposed of to provide data support for the experimental paper.

Several classmates stood in front of the cage and observed the mice raised by classmate Duan, and they all guessed what experiment Duan was doing.

"It seems there is nothing unusual." Student Wei said with a frown.

It is obvious that Wei's observation ability is first and foremost impressionistic. He thinks that it is normal for mice to be alive, move around and walk.

"What's wrong with your eyes?" Pan Shihua couldn't help but say to his carefree roommate, "Didn't you see the sutures on their abdomens?"

"Abdominal surgery? Isn't it heart surgery? Isn't he a cardiac surgeon?" Wei asked curiously.

"Is it the study of abdominal aortic aneurysm?" Dai Nanhui considered.

"Intraperitoneal heterotopic heart transplantation."

The last words came from classmate Xie.

...

...

The other students looked at her, then at Duan’s expression: It seems that’s right.

What is abdominal heterotopic heart transplantation? We have previously discussed heterotopic heart transplantation in the context of heart transplantation, which is relative to orthotopic heart transplantation. Let me simply repeat: the original heart of the recipient is not removed, and a new heart is installed somewhere else in the recipient's body. The word "abdominal" is added in front of heterotopic heart transplantation, indicating that the new heart is installed in the recipient's abdominal cavity.

In experimental animal models, heterotopic heart transplantation can be attempted in any area that the experimenter can think of, except the abdominal cavity. Other common sites for heterotopic transplantation include the neck and, rarely, the groin area.

The abdominal cavity is the most common, and it is the origin of this heterotopic heart transplantation experiment. The experimental researchers first used rats as experimental animals. Later, they gradually developed to other experimental animals such as mice and rabbits. Now Duan has done it on mice and rabbits, and it seems that there is a basis for further experimental exploration with the expenditure of scientific research funds.

The purpose of the experimental animal heart transplantation experiment is to serve human medicine. In human medicine, the donor and recipient are allogeneic. The experimental animals are the same, and the donor and recipient must be allogeneic. Seeing this, it is easy to understand what this experiment is mainly studying. It can simply study the risks of this procedure, or it can study the pathological changes of the recipient and the donor heart after the transplant, mainly the mechanism of occurrence and solution of various postoperative complications.

"Isn't Professor Cao not interested in heart transplantation? Why are you following him to do research on heart transplantation?" Several classmates were a little confused when they heard Duan's answer. Duan studied under the immortal brother, but the research he was doing was not what the immortal brother was interested in. Isn't he a new traitor? Maybe he should have been secretly working with Dr. Mu Yongxian, who was the most interested in heart transplantation, next door.

When Duan Sanbao was questioned by others, Yuanyuan opened his eyes wide and said: What?

"They are not doing heart transplant experiments either." Duan Sanbao, feeling incredible, revealed the research secrets of another scientific research giant.