indianbanksassociation Chapter 630 The Surrounded Teacher
Chapter 630 The Surrounded Teacher
The classroom was filled with the sound of flipping books.
Song He spoke while writing:
"Chemical means are used to create gastric cancer mice, mainly using N-methyl-N-nitrosourea. Add this substance to the drinking water of the mice, and the concentration of 120 ppm will basically cause cancer after five weeks of treatment. If you want to go faster, You can eat a high-salt diet and eat some salty food to get cancer in about three or four weeks."
"Gastric cancer induced by this method is basically concentrated in the gastric antrum, and often presents well-to-moderately differentiated tumors. It mainly affects the p53 signaling pathway, NF-κB signaling pathway and the expression of the tumor suppressor Tff1..."
"The second commonly used method is to use the Sydney strain of Helicobacter pylori to infect mice, but it takes a long time. Gastritis and gastric epithelial atrophy will occur after eight months."
"Now that technology has advanced, there are more advanced processing methods, gene editing mice. For example, Tff1 knockout mice, INS-GAS transgenic mice, Gp130 mutant mice..."
[28 students listened to your lectures, gained a small amount, and returned a small amount of biological knowledge! 】
[77 students listened to your lecture and gained a lot, and a lot of biological knowledge was returned! 】
[39 students drew inferences in their minds because of your teaching, and returned a huge amount of biological knowledge! 】
"Do you want to hear me explain this part?" Song He turned around.
"Yes!" everyone in the classroom shouted.
"Let's talk about Tff1 knockout mice first!" Song He waved the chalk, "The expression of mucus cells on the gastric foveolar surface is directed by Tff1. After knocking out, mice will show gastric epithelial cell hyperplasia at 1 week of age. This is something everyone knows Do you understand? Later, 28% of the mice developed multiple large epithelial lesions or even invasive adenocarcinoma after 18 weeks..."
Billions of knowledge poured out of his mouth and flowed to hundreds of students in the classroom.
He didn't prepare lessons, and he didn't need to prepare lessons. He was already familiar with these basic knowledge. He could talk about each point individually for several hours. It was more than enough to teach graduate students, not to mention that there were only a bunch of freshmen in the classroom!
Song He feels that he is a bit of an underachiever and should be a doctoral supervisor. Unfortunately, he has not yet obtained a master's degree.
The first class in the evening ended quickly, the bell rang, and it was time to take a break.
The classroom door opened, and students who came after hearing the news filed in and quickly grabbed the seats in the back row of the classroom!
In the first few minutes, only a few students arrived.
Two minutes before the start of class, the style of painting suddenly changed. The students rushed in like zombies, rushing to fill the entire classroom before the bell rang!
Among the crowd, Xi Yanfan was about to cry with envy. She had never dreamed that her class would be so popular, but so far she had not seen such a scene in any class.
Song He stood guard at the door. When the bell rang, he closed the door decisively and locked it with a click.
There was a burst of laughter in the classroom, and the students who arrived in time were so excited that they whispered to each other noisily:
"It's great! I finally sat in on Teacher Song's class!"
"I heard that Teacher Song's team has developed a new gastric cancer drug. You must hear about it, or it might make the news again!"
"You are too small to be in the news. The medicine for gastric cancer can be prepared and it will be recorded in history!"
"Is there any hope for a Nobel Prize?"
"There is definitely hope for effective drugs, but the world's biological achievements have exploded in the past two years. We may have to wait in line for many years!"
Song He returned to the podium, and the buzz in the classroom quickly fell silent. He picked up the chalk and continued his lecture:
"Next, we will talk about the immunodeficient mouse model of human transplanted tumors. It is more important than the previous lecture. As the name suggests, it is transplanting human tumors into mice!"
“The CDX model, whose full name is cell-line-derived xenograft, is to inoculate human gastric cancer cells into mice. The PDX model, patient-derived xenograft, is more difficult. It is to directly inoculate human gastric tumor tissue blocks into mice. in vivo!"
"Both models have their own advantages and disadvantages. On this basis, a new model Hu-PDX model was born..."
Song He lectured eloquently, and the students below took notes as fast as they could.
Some students came to class for the first time and did not understand the rules. They picked up their mobile phones and took pictures of the blackboard, but they were quickly stopped by other students around them.
The classroom efficiency is quite high. The students all know that it is hard for Song He to teach in person, so they study hard with all their energy. From time to time, there are sounds of enlightenment, and some people have realized something and their faces are excited!
As a result, knowledge rebates popped up crazily in front of Song He's eyes. From time to time, he needed to stop, drink water tactically, and quietly digest the new knowledge rushing in his mind!
[Biological progress detected, from Master Level 36 to Master Level 37! 】
[Biological progress detected, from Master Level 37 to Master Level 38! 】
Finally, Song He only had a small piece of chalk left in his hand.
He looked up at the blackboard filled with writing. He had already said almost everything he needed to say.
Looking at the time, there is still some time left for get out of class to end.
"Come on, students." Song He turned around and faced the packed classroom, "It's question time. If you have any questions, feel free to ask them. Who wants to ask?"
In an instant, hundreds of arms were raised high!
Xi Yanfan in the crowd looked around, his expression aggrieved, breaking his defense!
She also did this kind of thing. When get out of class was about to end, she asked her classmates if they had any questions, but very few raised their hands. After being embarrassed twice, she didn't dare to do it anymore, and she humiliated herself.
She thought it was because young people were introverted these days, but now it seems that it's not that young people are introverted, but that they simply don't want to ask her, the teacher!
Song He still asked questions like throwing a chalk tip, turned his back and threw the chalk tip violently!
A group of arms scrambled for it, and the chalk head bounced twice on the desk. A girl quickly held it down and let out a scream of joy, while the students around who didn't grab it sighed.
"Ask!" Song He turned around.
"Teacher, I saw in the news that Yirema Yongsheng Company has also released a gastric cancer drug. Compared with theirs, which one is stronger?" The girl stood up and asked curiously.
The expressions of all the students in the room suddenly became subtle, and all eyes stared at Teacher Song expectantly.
"I see everyone is curious?" Song He smiled.
Hundreds of heads nodded wildly, and a group of people echoed.
"My gastric cancer drug and the gastric cancer drug from Irema Yongsheng Company will be taken to the examination room together, and the drug testing process will begin simultaneously. The specific testing method is the blackboard I talked about tonight!" Song He said.
"Since everyone is curious, from now on, I will write out the latest test results during class every day. If you want to know, don't skip class and come on time to listen!"
The bell rang suddenly.
Song He knocked on the desk, "get out of class is over!"
Before he finished speaking, he swerved away, as agile as a sprint of 100 meters!
But the locked classroom door trapped him for two seconds. In those two seconds of life and death, the students in the front row jumped over the desks, rushed forward and surrounded the teacher!
"Teacher, don't leave, ask a question!"
"Teacher, how do you solve this question?"
"Teacher, I didn't understand something you said in class..."