|Born||George Hoyt Whipple
28 August 1878
Ashland, New Hampshire
|Died||1 February 1976
Rochester, New York
|Parent(s)||Ashley Cooper Whipple
Frances Anna Hoyt
|Alma mater||Johns Hopkins School of Medicine, Yale University|
|Known for||Liver therapy in cases of anemia|
|Awards||Nobel Prize in Physiology or Medicine in 1934|
|Institutions||University of Rochester / University of California|
George Hoyt Whipple (August 28, 1878 – February 1, 1976) was an American physician, pathologist, biomedical researcher, and medical school educator and administrator. Whipple shared the Nobel Prize in Physiology or Medicine in 1934 with George Richards Minot and William Parry Murphy "for their discoveries concerning liver therapy in cases of anemia". This makes Whipple the only Nobel laureate born in New Hampshire, and the first of several Nobel laureates affiliated with the University of Rochester.
Life and career
Whipple was born to Ashley Cooper Whipple and Frances Anna Hoyt in Ashland, New Hampshire. Ashley Cooper Whipple was a physician, and his father (George's paternal grandfather) was a physician and President of the New Hampshire Medical Society. Whipple's father passed away from pneumonia or typhoid fever when he was just shy two years old. His maternal grandfather died when Whippe was two years old and, she would be followed, a year later, by his paternal grandfather. This left Whipple to be raised by his mother, Frances, and grandmother, Frances Moody Hoyt, who impressed on him the value of hard work and education.
Made possible by his mother and grandmother, Whipple attended Andover prep school and began attending Yale University as an undergrad in 1900, earning A.B. degree in 1904. During these years, he developed as an outdoors-man, an affinity he would hold life-long. He writes in his autobiography about growing up in a lake district, "I feel very fortunate that I grew up in the country...I became interested in wild life and camping, also hiking, snowshoeing, skating, bob sledding, canoeing, fishing, hunting—all this was an essential part of my life". He even credited his love for the outdoors as a contributor to his successes in work, study, and teaching. In the summers of prep school and undergrad, he worked at a drugstore and at Squam Lake and Lake Winnepesaukee in New Hampshire providing help and ferry services to the tourists and campers. Of his summer experiences, Whipple has said, "I sometimes think I learned as much during the summer work periods as during the school terms".
In undergrad, he proved to be a prize-winning gymnast, oarsman, and an outstanding science student, exemplified by his election to membership in Sigma Xi and graduation with senior honors. The interactions Whipple had with biochemists Russel H. Chittenden and Lafayette B. Mendel during his senior year at Yale left an indelible mark on his life and career. In his autobiography, Whipple writes “an unusual man who exerted a strong influence on me ... work with him was exciting and never to be forgotten”.
With a shortage of funds to finance further education, Whipple took a year off after graduating Yale. During this year, he worked at Dr. Holbrook Military School in Ossining, New York teaching mathematics and science, and serving as an athletic coach.
In 1901, under the advice, persuasion, and guidance of his mother, Whipple attended medical school at the Johns Hopkins University. He received his M.D. degree in 1905. To gain experience and subsidize his medical school studies, Whipple applied for and was accepted to a teaching assistantship in John J. Abel's Department of Physiological Chemistry. Later, his performance in his first year anatomy course earned him a second-year appointment as a student instructor in anatomy. During this time, his interest in histology developed. Under the mentorship of William Welch, Eugene Opie, and William McCallum, Whipple was inspired to correlate clinical illness and disease, to the tissue findings discovered on autopsy. Together, McCallum and Welch conspired to offer Whipple a position as junior member of the pathology department with the hope it would lead to Whipple become a pediatric pathologist. Ultimately, Whipple accepted the position which shaped his career aspirations to become a pathologist.
In 1905, Whipple joined the pathology department at the Johns Hopkins Medical School as an assistant in pathology. He would stay at Hopkins, being promoted successively to Assistant, Instructor, Associate and Associate Professor in pathology until leaving in 1914. During this time, he spent a year in Panama at Ancon Hospital as a pathologist. In Panama, we worked with Samuel Darling, a resident pathologist, and General Gorgas to gain experience in tropical diseases. This experience afforded him the opportunity to study massive hemolysis associated with blackwater fever. Before returning to Johns Hopkins after his time in Panama, Whipple traveled to Europe and spent time in the laboratories of Krehl and Morawitz in Heidelberg, where he learned about anemia in rabbits. In 1911, Whipple went to Vienna to study hepatic portal vein blood flow and its effects on hepatic functions in the dog with Hans Meyer.
In 1914, at 34 years old, Whipple married Katherine Ball Waring of Charleston, South Carolina. He was also appointed Professor of Research Medicine, and Director of the Hooper Foundation for Medical Research at the University of California San Francisco medical school. He was dean of that medical school in 1920 and 1921.
In 1921, through the persistence of University of Rochester President Benjamin Rush Rhees, Whipple agreed to become a Professor and Chairman of Pathology, and the founding Dean of the yet-to-be-built medical school (URMC). Rhees was so determined to recruit Whipple, he personal flew to UC San Francisco to offer him the opportunity to build the medical school from the ground up. Whipple found this offer attractive because it would fulfill his passion to create a program which fostered an exchange between clinical and preclinical disciplines. His vision for the school included housing the medical school and hospital at the same site to facilitate this exchange. The first students entered URMC in 1925. In 1953, at 75 years old, Whipple retired from the Deanship, and retirement from the University would follow in 1955. He was remembered as a superb teacher. In his autobiography, Whipple writes, “I would be remembered as a teacher".
He spent his retirement years dabbling in pathology department and medical school activities at the University of Rochester, but returned to his outdoors-man roots, filling his time with pheasant hunting, salmon fishing on the Margaree River, and tarpon fishing off the coast in Florida.
Whipple died in 1976 at the age of 97 and is interred in Rochester's Mount Hope Cemetery. His familial legacy includes a son George Hoyt (b. 1917), a daughter Barbara (b. 1921), and several grandchildren. In his autobiography in A Dozen Doctors, Whipple states that teaching and research represented the ultimate in pleasure and satisfaction in his career.
Whipple's research interests during his career primarily included anemia and the physiology and pathology of the liver. But he also researched and made significant contributions to tuberculosis, pancreatitis, chloroform poisoning in animals, the metabolism of bile pigments and iron, the constituents of the bile, and the regeneration of plasma protein, protein metabolism, and the stroma of the red blood cells.
One of his first publications described the role of the lungs, lymphatic system, and gastrointestinal tract in the spread of tubercle bacillus causing tuberculosis. Another one of his early publications described autopsy results from a patient with an accumulation of fatty acids in the walls of the small intestine and lymph nodes. He named this abnormality lipodystrophia intestinalis (intestinal lipodystrophy), and correctly pointed to the bacterial cause of the lipid deposits, resulting in the disease being named Whipple's disease.
In Panama, he worked under General William Gorgas and Dr. S. T. Darling to study parasitic infection, especially blackwater fever, both as a cause of anemia and lesions found in the gastrointestinal tracts of infected patients.
When Whipple first joined the Johns Hopkins University as an assistant, he worked under William H. Welch, focusing on the repair and regeneration of liver cells. His research in dogs demonstrated that liver cells had an almost unlimited ability to regenerate. Through his chloroform liver injury studies, Whipple demonstrated that the liver was the site of fibrinogen synthesis.
While at the Johns Hopkins University, along with collaborator C. W. Hooper, Whipple studied jaundice and its association with chloroform poisoning and injury to the liver. His research elucidated the route by which bile pigments enter circulation and produce jaundice in various parts of the body. He also demonstrated that the lympathic system contributed minimally to bile pigment transport.
Later, he and Hooper studied bile pigments and their production outside the liver by way of bile fistulas at the Hooper Foundation at UC San Francisco. His interests soon extended to understanding the production of hemoglobin to gain a better understand of how it is metabolized into bile pigments. Co-authored with Hooper, Whipple published 12 papers, from 1915-1917, reporting the following:
- Bile pigment bilirubin was a breakdown product of muscle hemoglobin, though red blood cell hemoglobin was the major normal source.
- Bile pigment was not reabsorbed and reused in the production of new red blood cells.
- The heme moiety of hemoglobin could be converted to bilirubin in both the pleural and peritoneal cavities, in addition to the liver.
- Normal liver function was essential for the excretion of bilirubin.
- The curve of red blood cell regeneration in anemia, as influenced by dietary factors, like sugar, amino acids and starvation.
At the University of Rochester, Whipple's research focus became studying the various factors in diets which contributed to recovery of long term anemia, particularly in anemic dogs. Along with his research assistant, Frieda Robscheit-Robbins (formally Frieda Robbins), they co-authored 21 publications, from 1925-1930, reporting the following:
- Circulating plasma and hemoglobin volumes.
- The effects of dietary and other factors on bile salt production and secretion.
- Measurements of blood fibrinogen.
- The effects of diet, hemorrhage, liver injury, and other factors on plasma fibrinogen levels.
- Blood regeneration following simple anemia.
Whipple and Robscheit-Robbins, were regarded as having one of the "great creative partnerships in medicine".
In his landmark studies, published as a series “Blood Regeneration in Severe Anemia” beginning in 1925, he demonstrated that raw liver fed to anemic dogs was the most effective diet additive for reversing the anemia by boosting the production of red blood cells. He would go on to show that foods derived from animal tissue, and cooked apricots also had a positive effect of increasing red blood cells during anemia. Based on these data, Whipple associated the iron content in these dietary factors to the potency of red blood cell regeneration. This data led directly to successful liver treatment of pernicious anemia by George R. Minot and William P. Murphy, despite the main therapeutic mechanism being through B12 rather than iron. This was a remarkable discovery since previously, pernicious anemia was invariably fatal at a young age. For his contribution to this body of work, he was jointly awarded the Nobel Prize in physiology or medicine in 1934 along with Minot and Murphy.
In 1935, with F S. Daft and Robscheit-Robbins, he would demonstrate hemoglobin production in the fasting state was increased with a sugar fed diet.
In 1937, Whipple collaborated with William B. Hawkins to determine the life-span of the red blood cell in dogs. Simultaneously, with the advent of radioactive iron, Whipple, Paul F. Hahn, and William F. Bale collaborated to study iron absorption and utilization. They demonstrated that iron absorption was highly regulated in the small intestine and was influenced by the amount of iron stores in the body. They also demonstrated that insignificant amounts of iron were normally excreted or lost in the urine, feces, or bile. During this time, Whipple also formulated his theory on “the dynamic equilibrium between blood and tissue proteins” based on earlier plasmapheresis experiments he had performed (in the early 1930's) which demonstrated the importance of dietary protein on production of plasma proteins. This formed the foundation of research into mammalian protein metabolism, and led Rudolf Schoenheimer to write The Dynamic State of the Body Constituents, marking the modern era of biochemistry and biology.
Between 1939 and 1943 Leon L. Miller and Whipple collaborated to study the hepato-toxic effects of chloroform anesthesia on dogs. They found that dogs in a protein depleted state sustained lethal liver injury from within anesthesia fifteen minutes; but that feeding these depleted dogs a protein rich meal, particularly rich in L-methionine or L-cystine, prior to anesthesia was protective. This and other studies, led Whipple to the conclusion that S-containing amino acids are protective against liver against toxic agents.
During World War II, Whipple tested combinations of dietary amino acids, administered, orally or parenterally, and their effects on plasma protein synthesis. He was able to characterize amino acid mixtures that could satisfy the metabolic requirements necessary to maintain weight, nitrogen balance, and plasma protein and hemoglobin regeneration in the dog. This would ultimately led to human clinical trials which demonstrated that these amino acid mixtures, along with enzymatic digest of casein, could sustain nourishment in patients who could not intake nutrients through the normal gastrointestinal route for extended periods. This cocktail of nutritional supplementation is routinely used today.
- Additional evidence of the relationship and dynamic equalibrium between stored and circulating plasma proteins.
- The time frame of synthesis and release of labeled hemoglobin in dog circulation was 3-5 days.
- The immediate circulation of intraperitoneally injected isotopically labeled red blood cells and plasma proteins in dogs
Nobel Prize, Honors and Distinctions
Whipple shared the Nobel Prize in Physiology or Medicine in 1934 with George R. Minot and William P. Murphy "for their discoveries concerning liver therapy in cases of anemia".
In presenting the Nobel Prize, Professor I. Holmgren of the Nobel committee observed that "Of the three prize winners, it was Whipple who first occupied himself with the investigations for which the prize is now awarded. ... Whipple's experiments were planned exceedingly well, and carried out very accurately, and consequently their results can lay claim to absolute reliability. These investigations and results of Whipple's gave Minot and Murphy the idea that an experiment could be made to see whether favorable results might also be obtained in the case of pernicious anemia...by making use of the foods of the kind that Whipple had found to yield favorable results in his experiments regarding anemia from loss of blood."
Whipple received honorary doctorates from several American and international Universities, including the Universities of Athens and Glasgow. In 1930, along with Minot, he received the Popular Science Monthly Gold Medal and Annual Award. In 1934, he was awarded the William Wood Gerhard Gold Medal of the Pathological Society of Philadelphia.
- Rockefeller Foundation, Trustee
- Association of Physicians in Vienna, Corresponding Member
- Royal Society of Physicians in Budapest
- European Society of Haematology
- British Medical Association, Foreign Corresponding Member.
- Pathological Society of Great Britain and Ireland, Honorary Member
- American Philosophical Society, Honorary Member
- Society of Experimental Biology and Medicine, Honorary Member
- Board of Scientific Directors of the Rockefeller Institute, Member
- Board of Trustees of the Rockefeller Institute, Member; Vice-Chairman; and Trustee Emeritus
- Bale, W. F.; Yuile, C. L.; DeLaVergne, L.; Miller, L. L.; & G. H. Whipple. "Hemoglobin Labeled by Radioactive Lysine", University of Rochester, United States Department of Energy (through predecessor agency the Atomic Energy Commission), (Dec. 9, 1949).
- Miller, L. L.; Bale, W. F.; Yuile, C. L.; Masters, R. E.; Tishkoff, G. H.; & G. H. Whipple. "Radioactive Lysine in Protein Metabolism Studies", University of Rochester, United States Department of Energy (through predecessor agency the Atomic Energy Commission), (Jan. 9, 1950).
- Ingram, M.; Mason, W. B.; Whipple, G. H.; Howland, J. W. "Biological Effects of Ionizing Radiation", University of Rochester, United States Department of Energy (through predecessor agency the Atomic Energy Commission), (Apr. 7, 1952).
- Whipple, G.H., King, J.H. (1910). The Pathogenesis of Icterus. The Journal of Experimental Medicine, 13(1), 115.
- Whipple House (Ashland, New Hampshire), his birthplace
- University of Rochester
- List of Nobel laureates affiliated with the university
- Publication Record
- Corner G.W. (1963). George Hoyt Whipple and his friends; the life-story of a Nobel Prize pathologist. Philadelphia, Lippincott
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