Konoha Hospital.
Next door to the medical training class are laboratories and offices.
At this time, Bai Yu was asking Tsunade for advice in the office.
Since the war has come to an end, Tsunade will stay in the village unless a new war breaks out or there is any important mission.
As a medical expert, Tsunade would come to the hospital even if she didn't have a mission.
Tsunade attaches great importance to the training of medical ninjas, and the establishment of medical training classes is also the result of her many efforts.
During the war, too many wounded died due to lack of timely medical treatment.
As the best student in this medical class, Bai Yu satisfied Tsunade in every aspect.
"Tsunade-sensei, I have always wanted to ask you a question. Under normal circumstances, how long can cells survive outside the body, and to what extent can medical ninjutsu affect cells?"
Bai Yu looked eager for knowledge and asked for advice humbly.
When it comes to medical knowledge alone, Bai Yu thinks he can't be much worse than Tsunade, because he also specialized in pharmacy in his previous life and often conducted many pharmaceutical experiments with his mentor.
However, in the ninja world, Bai Yu's ability to apply chakra to medical treatment was definitely far inferior to Tsunade's.
There are many magical things about chakra;
In the original work, Orochimaru was even able to develop an alternative 'immortality technique' such as the technique of reincarnation.
In addition, there is also the reincarnation of dirty soil, which can actually resurrect the dead, which is beyond Bai Yu's knowledge.
Even in the wizarding world, Bai Yu only knew that senior wizards had long lifespans and had various life-saving abilities, but he had never heard of the ability to resurrect the dead.
Bai Yu has not yet conducted systematic research on the characteristics of chakra and the differences between human cells in the Naruto world and the previous life.
It's not that he's not interested.
On the contrary, wizards themselves are a profession that likes to explore unknown things, and Bai Yu has great curiosity about Chakra.
It's just that he plans to reach the level of third-class apprentice or even first-class warlock first, and then slowly engage in scientific research.
It's still important to save your life now.
He came to ask Tsunade questions mainly because he wanted to get Tsunade's cells.
"Are you already interested in cell research?"
Tsunade looked at the "Advanced Knowledge of Medical Ninja" held in Bai Yu's hand with a surprised expression on her face.
She also participated in the compilation of this textbook, so she naturally knew that the content inside was difficult and not at a level of knowledge that newcomers could understand.
But if it was Bai Yu, she could understand.
This kid is a genius!
"Last time I watched the treatment process of Minami-senpai and the others, and I had some feelings about the 'healing and regeneration technique'.
This technique uses a part of the injured person's body as a medium and changes the cell ratio of the medium to treat the wound.
Treatment requires the use of surgical techniques, which have extremely high requirements for controlling the proportion of chakra and cells.
Theoretically, if the cell activity is strong enough, can even severed limbs be reattached? "
Bai Yu asked curiously.
After hearing this, Tsunade opened the drawer of her desk, then took out a book, found the specific case records and showed them to Bai Yu, and then explained:
"Generally speaking, cell survival outside the body depends on the specific cell type.
If the living environment is not considered, the laboratory environment should be used to give cells the best living conditions.
Highly differentiated cells that cannot be replicated, such as nerve cells, cardiomyocytes, etc., will basically die after being separated from the body for more than dozens of hours because they cannot be replicated and renewed.
Stem cells with the ability to replicate will last longer, about three to five months.
Depending on the growth characteristics of different cells, the time will vary.
This is the result of current cell research on most people.
However, there are some special beings among ninjas, and their cell activity cannot be described by common sense.
With today's level of medical ninjutsu, it is certain that severed limbs cannot be reattached.
unless......"
"Unless what?!" Bai Yu looked like a curious baby.
Tsunade hesitated for a moment. Considering Bai Yu's medical level, he would know these things sooner or later, and then explained:
"Unless the cell activity is like my grandpa's!"
"The First Hokage?!" Bai Yu said.
Tsunade nodded: "Grandpa has been dead for more than ten years, but his cells are still alive and extremely active, able to engulf other cells and continue to replicate and strengthen.
Even the less active part surpassed all the ninjas in Konoha. "
Bai Yu's heart moved. So, aren't the first-generation cells similar to cancer cells, possessing characteristics similar to infinite replication?
No wonder the first Hokage is hailed as the god of ninjas in textbooks!
According to the plot of the first part, Orochimaru used the art of reincarnation to summon the first generation and the second generation. As a result, both of them were killed by the elderly third generation. He thought it was because the third generation was too strong and the first and second generations were too naïve.
Now it seems that there should be a problem with the forbidden technique of Reincarnation in the Dirty Land itself.
"Perhaps the cells of the first Hokage meet the conditions for promotion to a first-level warlock...a super radiation creature!" Bai Yu's pupils shrank.
"Don't think about it. Grandpa's cells are strictly monitored, and even I don't have permission to access them."
Seeing Bai Yu's curious face, Tsunade said angrily.
"Grandpa's cells are too dangerous and cannot be effectively used with the current level of medical ninjutsu."
Despite what he said, Tsunade was quite optimistic about Bai Yu.
Many geniuses appear in every generation in the village, but there are very few people who are as obsessed with medical research as Bai Yu and are gifted.
While other children of the same age were still learning the basics of medical ninjutsu and practicing chakra control, Bai Yu had already begun to be interested in high-end knowledge such as cell research.
"You little brat! Wait until you learn the art of palm immortality before you think about this!" Seeing Bai Yu's unwillingness, Tsunade couldn't help but poke his forehead with her finger.
Palm Senjutsu is an A-level ninjutsu. Even in the entire Konoha, there are very few medical ninjas who can skillfully use Palm Senjutsu.
Tsunade had high hopes for Bai Yu.
"My body is not fully developed yet, and my chakra is not enough to support the practice of Palm Immortal Technique, but I will be able to learn it sooner or later!" Bai Yu rubbed his red forehead, somewhat unconvinced.
His chakra amount is still a bit low. Although it has increased several times due to the improvement of physical and mental strength, the base number is too small.
Obviously, in addition to spiritual energy and physical energy, there are other factors that affect the growth of chakra.
For example, some ninjas born in the ninja clan are born with a relatively large amount of chakra, especially Kushina, who is from the Uzumaki clan, and Tsunade, who is from the Senju clan.
Bai Yu will have to figure out the secret of chakra sooner or later.
"Okay, okay, if you don't have any other questions, just leave. I'm still busy!" Tsunade waved her hand, looking impatient, as if she wanted to send Bai Yu away.
Bai Yu glanced down and said teasingly: "Tsunade-sensei, you are rushing me away, are you trying to drink wine secretly? I saw a wine bottle in your drawer."
When Tsunade heard this, she immediately turned her body sideways, raised her plump breasts to block Bai Yu's sight, and said angrily:
"What nonsense are you kidding?! How could I, as a teacher, do such a thing?!"
"Senior Nose Tree told me."
"It seems that I haven't beaten him for a long time!" Tsunade's eyes instantly became terrifying, and her fists clenched.
"Um...Tsunade-sensei, the first generation is your grandfather, and your cells should be very active. Is it okay..." Bai Yu looked unyielding.
Tsunade was stunned for a moment, then reacted instantly, "You want mine?"
Seeing Bai Yu's serious look, she knew that Bai Yu wouldn't give up if she didn't satisfy him.
"Okay, I'll give it to you, but you have to promise that I can't use it to do strange things, and it must be researched within my sight!" Tsunade was about to let Bai Yu retreat.
"Great! Long live! You are indeed the most gentle, kind, beautiful and generous teacher Tsunade in Konoha!" Bai Yu jumped up from his seat excitedly and cheered.
"You are the only one who can say it." Tsunade said angrily. She was such a realistic and difficult brat, "Come to the next door with me!"
Bai Yu lowered his head, suppressed the excitement in his eyes, and followed Tsunade into the laboratory next door.
Tsunade closed the door of the laboratory, then took out a syringe, rolled up her sleeves, and drew some blood for Bai Yu.
Then she stood aside with her arms folded, letting Bai Yu conduct his own experiments, waiting for his help.
Bai Yu turned his back to Tsunade and injected Tsunade's blood into the petri dish. Taking advantage of the break in the experiment, he lightly touched it with his fingers.
The cells in Tsunade's blood instantly lost their activity.
[Obtain cells of powerful irradiated organisms (1/1), cell activity and blood purity meet standards, quality: excellent]
[Second-class apprentice promotion conditions: 1. Spirit ≥ 3, physique ≥ 1, completed; 2. Powerful radiation of biological cells or tears (2/2), completed]
The data displayed under the "Eye of Truth" made Bai Yu clench his hands.
You can finally get promoted!
