Antipernicious: Anemia Factor
In 1849, British physician Thomas Addison provided the first clear description of the disease, which is why it was originally known as Addisonian anemia.
Under the microscope, German pathologist Paul Ehrlich identified giant, underdeveloped red blood cells in the bone marrow of these patients, terming them megaloblasts . 🔬 The Race for the Cure: From Liver to Laboratory antipernicious anemia factor
For decades, physicians could do nothing but watch their patients die. The breakthrough came from a series of accidental discoveries and brilliant deductions. 1. The Liver Diet Breakthrough (1920s) In 1849, British physician Thomas Addison provided the
In 1930, researcher William Castle conducted clever experiments feeding patients predigested meat and gastric juices. He deduced that a normal stomach secretes an that must bind with an "Extrinsic Factor" (the antipernicious anemia factor in food) to allow the body to absorb it. Patients with pernicious anemia, he discovered, lacked this intrinsic factor due to stomach atrophy. 3. Isolation of Vitamin B12 (1948) Pernicious anemia: MedlinePlus Medical Encyclopedia The breakthrough came from a series of accidental
The journey to a cure began with George Whipple , who was studying blood regeneration in anemic dogs. Due to a happy laboratory accident where a technician fed the dogs raw liver instead of cooked food, Whipple realized that .
Hearing of this, Boston physicians George Minot and William Murphy decided to try feeding raw liver to human patients dying of pernicious anemia. To everyone's astonishment, patients forced to consume about a half-pound of raw liver daily made complete recoveries. Whipple, Minot, and Murphy shared the for this discovery. 2. Extrinsic vs. Intrinsic Factors
Eating massive amounts of raw or lightly cooked liver was nauseating and difficult for patients to sustain. Scientists knew there was a specific compound in the liver curing the disease—the "antipernicious anemia factor"—but they didn't know what it was.
