The classroom was filled with the rustling sound of pages being flipped.
Song He wrote as he lectured:
"To create gastric cancer in White Mice through chemical means, N-Methyl-N-Nitrosourea is mainly used. Add it to the White Mice's drinking water and treat them with a concentration of 120 ppm for five weeks; they'll basically develop cancer. If you want it to happen faster, you can use a high-salt diet and feed them some salty food. They'll develop cancer in about three or four weeks."
"Gastric cancer induced by this method is basically concentrated in the Gastric Antrum, and usually manifests as tumors ranging from well-differentiated to moderately differentiated. It mainly affects the p53 Signaling Pathway, the NF-κB Signaling Pathway, and the expression of Tumor Suppressor Factor Tff1..."
"The second commonly used method is to infect White Mice with the Sydney Strain of Helicobacter Pylori, but it takes a long time. Gastritis and gastric epithelial atrophy only appear after eight months."
"With the advancement of technology, there are also more advanced treatment methods: Gene Editing mice. For example, Tff1 Knockout Mice, INS-GAS Transgenic Mice, and Gp130 Mutant Mice..."
28 students listened to your lecture, gaining a little. A small amount of biological knowledge was returned! 77 students listened to your lecture, gaining a great deal. A large amount of biological knowledge was returned! 39 students applied what they learned from your lecture and drew new inferences. A huge amount of biological knowledge was returned!
"Do you want me to elaborate on this part?" Song He turned around.
"Yes!" the entire classroom shouted in unison.
"Let's start with Tff1 Knockout Mice!" Song He waved his chalk. "Tff1 directs the expression of mucus cells on the surface of the Gastric Pit. After it is knocked out, the mice develop gastric epithelial