Chapter 629 How To Produce Cancerous Animals
Chapter 629 How To Produce Cancerous Animals
"Don't cheat on food or drink!" A voice suddenly sounded from outside the door.
Immediately afterwards, Song He rushed into the classroom sweating profusely!
Xi Yanfan, who was about to give a lecture, let out a long sigh of relief, then punched him angrily and complained softly, "I thought you were dead in the laboratory! Did you produce results or was it a complete mess?"
"How could it possibly be messed up? There are results!" Song He smiled, "I will talk about the knowledge points related to the results in this class."
"Oh?" Xi Yanfan's eyes lit up, "Then I'll listen to the class too!"
After speaking, Xi Yanfan packed up her books and walked off the stage.
Just as I was about to find a seat in the front row, a rumbling sound broke out, and the listless students in the classroom suddenly rushed to the front row seats in a hurry!
Xi Yanfan was dumbfounded, he had never seen such a formation before.
After just a moment of hesitation, the front row seats were occupied within seconds!
She suddenly felt very sad. She had worked hard to teach for several days, but these students ignored her. Song He skipped class for several days. He was a completely irresponsible bastard teacher. As a result, the students saw him. Become a licking dog in an instant!
What kind of world is this! Damn it!
Xi Yanfan sadly ran to the back row, found an empty seat alone, and listened to the class with his chin in his hands.
"First of all, I want to apologize to my classmates and to Teacher Xi. I was supposed to attend the classes in the past few days, but I was too busy in the laboratory and didn't leave. I'm extremely sorry. I will find a way to make it up to everyone!"
After speaking, Song He bowed solemnly on the podium.
There was a burst of applause in the classroom. Although the students had scolded Song He so much before, a sincere apology is still worthy of encouragement, especially the promise of compensation, which can't help but make people think.
"I didn't have time to prepare for this class, so I'll just briefly talk about my new achievements during this period!"
Song He turned around, picked up the chalk and wrote on the blackboard.
【Gastric Cancer Drug】
"My team has just made a new gastric cancer drug." Song He announced with a smile.
There was silence in the classroom at first, and then the students collectively burst into laughter and applauded violently again!
Shocking! This was the first reaction of everyone present!
"The teacher is awesome!"
"Teacher, we forgive you, you are so good at holding back this ultimate move!"
"Teacher, can gastric cancer be cured with medication?"
Song He waited for the classroom to quiet down and continued teaching with a smile.
"Some students asked about the idea, how to determine the efficacy of cancer drugs? We will talk about this in this class. When you enter the biopharmaceutical industry in the future, you will know what to do next!"
"You can't learn these things in ordinary university textbooks, but they are very useful because they are practical experience and industry status quo! The purpose of our cutting-edge science and technology university is to cultivate practical people, and learn everything with the aim of learning useful things! "
Song He turned around and started writing quickly on the blackboard while talking non-stop.
Before writing on the blackboard, he swallowed two hand-eye coordination capsules. The first few words were still crooked, but then they suddenly became beautiful, like the effect copied from the copybook!
There was another roar from the students below, praising the teacher's beautiful handwriting. Some couldn't help but pick up their pens to imitate, but after writing two times, they put down their pens in self-mockery.
"Let me ask first, how do you think the efficacy of cancer drugs should be determined?" Song He said, suddenly turning around and throwing the chalk head far away in the back row.
The chalk tip drew a graceful high throw line and landed steadily on a boy's desk.
"I know the teacher's question. I will go to the hospital to find cancer patients and let them try the medicine!" The boy stood up and answered.
Song He continued to write on the blackboard, "Are you just going to test the medicine on cancer patients? What if you make poison? Is this some kind of covert murder?"
There was low laughter in the classroom, and the boy blushed, "Use animals first!"
"What animal?" Song He asked.
"Rat, monkey, pig, dog..." Someone rushed to answer, and various answers were jumbled up.
"Very good. Before testing the medicine on real people, we need to do a lot of tests on experimental animals." Song He changed the topic, "But! Some common minor diseases can easily find corresponding disease animals. Do cancer drugs have to go to cancer animals? Really? How old do you have to keep experimental animals before they have a chance of getting cancer? How much does it cost?"
There was silence in the classroom.
The question raised by the teacher is indeed fatal. Experimental animals are all consumables, and cost is the key. If you want to assemble a large group of cancer animals, how many experimental animals do you have to choose from?
Song He smiled and tapped on the blackboard to reveal the answer.
“I’m going to talk about an important concept here, animal models of cancer!”
"There are two types, spontaneous tumor animal models and induced tumor animal models!"
"The former is a normally bred experimental animal. After being raised to a certain age, it has genetic defects and develops cancer. The advantage is that the situation is more natural, and the tumorigenesis and cytology characteristics are similar to human tumors! But the disadvantage is also very fatal. It is too rare. You may not even be able to buy it with money!”
"The latter, induced tumor animals, as the name suggests, uses artificial means to deliberately cause cancer in experimental animals! The professional term is that exogenous carcinogens are used to cause abnormal genetic characteristics of cells to show abnormal growth and high proliferation activity, forming tumors! "
"It's too tedious to memorize. It doesn't matter whether you memorize it or not, as long as you mean it correctly during the exam."
There was a burst of laughter in the classroom, the students were in a happy mood, and Teacher Song was still very open-minded.
"Just tell me a few ways to induce tumors in animals!" Song He continued writing on the blackboard, "All the people teaching and listening in our classroom are animals, so take this as a warning!"
"The radioactive substance method has a special radiation machine that is aimed at a certain part of the animal and illuminates it continuously. I have it in my laboratory. You can practice it later. A faster way is to locally inject radioactive isotopes, shiny liquids If you hit it, the probability of getting cancer is very high."
"Chemical carcinogens, such as benzopyrene, methylcholanthrene, benzidine, nitrosamines, aflatoxins, etc.!"
"Everyone should be familiar with aflatoxin. It can be found on old wooden chopping boards that have accumulated water for a long time. It can also be found on food that has become moldy. So if you feel that the food at home is bad, don't eat it, and don't be a gambler. The cost of this one bite may be 2,000 or 20,000, the former is a follower, and the latter is bedridden in the hospital."
"Biological carcinogenesis methods, common ones include mouse leukemia virus, SV40 virus, etc."
"I am working on gastric cancer drugs. I will give you an example of gastric cancer animals as an example. Please take notes. You must take the test here in the midterm exam!"
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