Ask Sword

  Chapter 68 Living

  “.”

  Yan Yundang stared at Li Ang, who was calm and calm, and suddenly smiled: "It's interesting. Are you a doctor?"

The housekeeper at the side was startled when he saw Li Ang put on a wolf hair beard on himself, and was afraid that Li Ang would say something strange that would make Yan Yun angry, so he said quickly: "Li Ang Xiaolang is a candidate for the academy this year, and he came second in the first exam. Imperial subjects, arithmetic, Danqing, and herbal medicine are all top-ranking."

"oh?"

  Yan's father and son raised their eyebrows at the same time, Yan Yundang looked Li Ang up and down, and said in a deep voice: "That's all for the herbal medicine department, you can be ranked first in the imperial department with your body?

   Is there no one left in the Yu State Military Mansion? "

"hehe."

  Li Ang smiled slightly, "Yuke pays attention to the unity of people and horses, and the Claret Horse and I won the first class together."

"Well"

  Yan Lin groaned, riding a horse all year round will inevitably leave marks on the palms and legs, Li Ang doesn't look like he can beat those barbarian teenagers who grew up on horseback since childhood,

  But the academy exams are always fair and open, so he couldn't believe it.

   "Father, why don't you let him try?"

  “.”

Yan Yun glanced at his son, and wanted to scold him again, but seeing the worried expression on the eldest son's no longer young face, his heart softened, and he sighed: "Forget it, forget it, alas , just try it."

  Yan Yun sat on the chair with a big horse, with the palm of his left hand spread out on the table, waiting for the pulse diagnosis.

  Li Ang was not polite, he pressed the wolf hair above his lower lip, walked forward, first took a pulse, then asked his family members a few words, and did a physical examination of the upper abdomen and other parts.

  ‘There are many potential causes of jaundice, but there is no fever on the body surface, no upper abdominal pain, and no gastrointestinal bleeding—this excludes the possibility of viral hepatitis, cholangitis, liver cancer, and periampullary cancer.

  Patients with liver cirrhosis can see the face of chronic liver disease, spider veins, liver palms, facial telangiectasia, etc.—no, it proves not,

  In addition, it is not cholestatic jaundice—there is no xanthoma on the eyelids and other parts, and according to the family members, the urine color of the patient has not turned into a strong brown color’

   Li Ang quickly screened the cause, and suddenly asked: "Duke, how many hours do you sleep in a day during this time?"

  Yan Yundang's eyes twitched, the corners of his mouth pulled down,

  Yan Lin took a deep breath, "During this time, my father has to sleep for six hours a day, sometimes seven hours."

   "Drowsiness?"

   Li Ang frowned slightly and said, "Do you feel that the gait of the lower limbs is unstable, it is difficult to walk, and the hands and feet are often symmetrically numb?"

   Before Yan Yundang could speak, Yan Lin stepped forward and said: "Yes."

"I see."

  Li Ang thought for a moment, then slowly said: "Duke, this is anemia."

   To be precise, it is megaloblastic anemia.

   Megaloblastic anemia is a kind of anemia caused by deoxyribonucleic acid synthesis disorder, which can be roughly divided into two types,

  One is pernicious anemia caused by lack of vitamin b12,

  One is megaloblastic anemia caused by lack of folic acid (vitamin b9).

  The clinical manifestations of these two types of anemia are quite similar. They are fatigue, shortness of breath, dizziness, palpitations, pale complexion or mild jaundice, often accompanied by neurological symptoms such as abdominal distension, diarrhea, glossitis, and weakness of hands and feet.

   "Anemia"

  Yan Lin showed a complex expression on his face, and said in a deep voice: "During this time, my father has been taking Siwu Decoction and other blood-nourishing prescriptions, and he hasn't seen any improvement for a long time."

  Li Ang shook his head helplessly, and said, "Anemia is both a symptom and a symptom.

  The root cause lies in the stomach. "

   "Stomach?"

  As soon as these words came out, not only Yan Lin was shocked, but Yan Yundang and Qiu Jing also frowned.

   "Exactly."

  Li Ang nodded, and changed the topic: "When I walked from the backyard just now, I saw four cages of pigeons in the yard?"

Pigeon?

  Yan Lin and the others were even more confused, unable to keep up with Li Ang's train of thought.

  What is the relationship between pigeons and the stomach?

   Do you want to drink pigeon stew?

  Yan Lin nodded and said: "Well, those pigeons were raised and played by my son according to the thesis on flying pigeons passed on in the school publications."

   “I also liked keeping pigeons when I was a child.”

  Li Ang said: "But because the family has no money, the scale of raising is not as good as that of the Duke's Mansion, and only ten are raised.

  Among the ten pigeons, five are plump and docile,

  The five have a bad temper and often peck at people. "

  Yan Lin and the others frowned, not knowing why Li Ang said this section.

  Just to illustrate five?

   Li Ang continued on his own: "I like the five docile ones, so I feed them polished rice every day after the bran and aleurone layers have been removed.

   Hate those grumpy five, feed them cheap brown rice.

  But after a long time, the five docile pigeons who ate rice every day became depressed.

  The pigeons that ate brown rice were as strong as before. "

"Control Variable?"

   Qiu Jing's eyes lit up on the side. Ever since he heard Li Ang's novel statement in the restaurant that day, he felt that many things suddenly became clear.

  Two control groups, only one condition is different, and the rest of the initial test conditions are all the same,

  If the final results of the control group are different, then the initial different condition is the determinant of the difference.

   "That's right, I wanted to figure out why the two groups of pigeons showed different results."

   Li Ang said: "I separated the five docile pigeons, three of them were still fed with polished rice, and the other two were fed with brown rice.

   Of the five grumpy pigeons, three were still fed brown rice, and the other two were fed polished rice.

  As time went by, I found that no matter the grumpy or mild-tempered pigeons, as long as they only ate polished rice, they all showed signs of malaise.

   And all the sick pigeons, just restarted eating brown rice, can recover from the disease.

   From this, I determined that brown rice contains some kind of specific substance. When this substance is lacked for a long time, the pigeons will get sick. "

   This is the experiment conducted by the Polish biochemist Kasimir Funke in 1911. He gave the specific substance he defined a name—vitamin

   Or rather, vitamins.

  (end of this chapter)