Of course, the average poor medical student cannot afford expensive experimental animals, so they use ordinary laboratory mice or rabbits. The problem is, the cost for students to do scientific research is very small. How poor can you be to meet the experimental requirements?
Under the premise, cost must be considered. Rats can be used instead of mice. Just because a mouse costs a few yuan more than a rat, poor researchers are forced to worry about it. Not to mention rabbits, which are much more expensive than mice.
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When classmate Wei, who might be able to afford a Hermès stethoscope, heard this, he thought: This is not a big problem for me. I will ask my dad to give the teacher some money to buy more for me.
I think it’s easy, Mr. Wei. The trouble is not just the money to buy animals. The animals you buy are not used directly. Many experiments require animal models. Because what you do in clinical medical research is basically studying diseases, and you have to let the animals be taken care of.
A certain disease can be simulated as a patient to facilitate research.
For example, when they were interning in the Department of Obstetrics and Gynecology, Xie Wanying and Duan were fortunate enough to come into contact with some clinical research project documents. When studying gestational diabetes, the teachers had to establish a rat gestational diabetes model in the laboratory.
Where did this model come from? You can either buy it from the relevant model company. It is much more expensive than ordinary laboratory rats, and each one can cost several thousand or tens of thousands. No matter how rich you are, it is difficult to afford such a huge sum of money. Most of the time,
The researchers will conduct their own trial modeling to raise sick rats. First, they will raise the rats that meet the weight and age requirements of the experiment for two weeks to allow them to become familiar with the surrounding environment and diet to prevent external factors from affecting the experimental process and results.
Male and female mice were mated, and after pregnancy was confirmed, they were divided into a control group and an experimental group. Normal saline and streptozotocin were injected into the abdominal cavity of the two groups of pregnant female mice to induce diabetes in the female mice.
As long as there is a slight deviation in your process that leads to disqualification and does not meet the experimental assumptions you set up, you can only do it all over again.
Is it just a matter of money at this time? No. Money cannot buy experimental results. Some scientific research students and teachers were so angry that they felt pressure to jump off buildings and rivers because their results were not produced as planned.
After Mr. Xie explained it to Mr. Wei like this, it can be regarded as the most common answer to laboratory questions.
Classmate Wei and classmate Pan, who had never been exposed to scientific research, were stunned for a moment. Dai Nanhui once again seriously questioned: Are the parents of classmate Xie really ordinary people?
"You said so, Yingying, the most important thing is-" Wei Shangquan asked.
Looking back, someone just questioned the arrogance of their classmates, including her classmate Xie. Now it seems that it is quite the opposite. She respects every tutor because she knows too much about scientific research. She does not want to cause trouble to the tutor and must choose carefully.
If you want to avoid detours and not waste your efforts, the early experimental design is the most important. This requires guidance from yourself and a mentor who has the same ideas. So what Senior Sister Yu said at the beginning was the most correct.
The surroundings were so quiet that several students raised their heads and were surprised to realize that their seniors had eavesdropped on them at some point, and they immediately stopped talking.
Cheng Yuchen and Duan Sanbao looked at each other: their boss's expressions and eyes looked wrong.
Not long after, Xie Wanying could feel the foresighted and dark eyes of the fairy brother in front of her sending a meaningful glance, which made her heart beat faster.
This student Xie is really surprising. A person who seems to have never been exposed to scientific research actually knows a lot about scientific research. What is going on? The most outrageous thing is that many people should have known about it and not told him. Don’t blame a lot of people