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Department of Medicine, The Medical College of Georgia, Augusta, GA 30912
| INTRODUCTION |
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| Family and education |
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Sydenstrickers humanitarian and scientific interest in malnutrition
was part of a remarkable American family that included the Nobel and
Pulitzer prize-winning author Pearl S. (Sydenstricker) Buck and the
eminent epidemiologist Edgar Sydenstricker (1)
. Virgil
Sydenstricker received B.A. and M.A. degrees from Washington and Lee
University in 1910 and 1911, and an M.D. degree from the Johns Hopkins
University School of Medicine in 1915. He was an intern and assistant
resident at the Johns Hopkins University Hospital from 1915 to
1917 and a resident at the University Hospital, the teaching hospital
of the Medical Division of the University of Georgia in Augusta, GA
from 1919 to 1920. He was licensed to practice medicine in Maryland (1915) and Georgia (1919). He served in World War I with the Johns
Hopkins Military Medicine Unit in France, achieving the rank of
Captain.
| Career overview |
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Sydenstricker achieved national and international recognition in the fields of hematology and nutrition. He published 113 scientific articles and abstracts and biographical sketches in journals that included Science, Nature, The Journal of Biological Chemistry, The American Journal of Physiology, The Proceedings of the Society for Experimental Biology and Medicine, The Journal of Nutrition, The Journal of the American Medical Association and six chapters in textbooks of medicine and pathology. His initial research in hematology dealt with innovative methods of blood transfusion and descriptions of sickle cell anemia. In the 1930s, he began research in nutrition addressing problems of vitamin deficiency diseases and malnutrition. He reported experiments in rats in nine articles covering nutritional factors that influenced the eye and a similar number of articles on amino acid deficiencies with special attention to threonine. He published nine articles on niacin and pellagra, six articles on riboflavin deficiency and five on wartime nutrition.
| Research and scientific accomplishments |
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Sydenstricker demonstrated the efficacy of nicotinic acid (niacin) in
the prevention and cure of pellagra (5
,6)
. His work was an
important clinical follow-up to the earlier studies of Goldberger
in Georgia and South Carolina mental institutions that demonstrated
that pellagra resulted from a diet deficient in niacin. Pellagra was a
prevalent and puzzling disease, particularly widespread in the
Southeast (see below).
His nutrition research interest then turned to riboflavin deficiency,
especially the ocular manifestations (7)
. He described the
syndromes of multiple B vitamin deficiencies (6)
and
reported the effects of B vitamin therapy in patients with psychosis
and encephalopathy (8)
. He and associates also contributed
to the characterization of the syndrome of human biotin deficiency.
| Wartime efforts |
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He compiled a scrapbook with numerous snapshots of his war experience, captioned in Sydenstrickers handwriting. The original document is on exhibit in the Special Collections Room of the Greenblatt Memorial Library of MCG. The scrapbook graphically depicts the horrors of the dead, dying and malnourished captives in the concentration camp, and their brutal SS guards.
His earlier wartime experiences included his work with Ancel Keys and
others in developing the K ration. He summarized his experiences in
Britain in the Harvey Lecture in 1943 at the New York Academy of
Medicine (9)
and in other publications. He was a
consultant to Keys in the landmark "Minnesota experiment" that
chronicled the effects of semistarvation for 9 mo and subsequent
refeeding in conscientious objectors. In 1950, he returned to England
with the WHO to evaluate the postwar nutrition of the British people.
Sydenstrickers research then turned to studies in a rat model of the effects of various essential amino acids (lysine, methionine, phenylalanine, histidine, threonine and tyrosine), especially in the eye, with several "eye" papers published in The Journal of Nutrition. He and collaborators studied the corneal changes and cataract induction from a variety of nutritional deficiencies, including those of pantothenic acid and pyridoxine.
| Awards and honors |
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He was elected to Phi Beta Kappa and Alpha Omega Alpha honor societies and to membership in numerous scientific societies including the American College of Physicians (Fellow, 1927, Master, 1949), the American Institute of Nutrition (1944), and the Society for Experimental Biology and Medicine. He was awarded Board Certificate #225 from the American Board of Internal Medicine (ABIM) in 1936. He served on the ABIM as an examiner from 1946 to 1952.
| Medical education activities |
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His famous collaborators included Keys, William Sebrell and Hugh
Sinclair. At the symposium at MCG celebrating the centenary of
Sydenstrickers birth, Sebrell gave a fascinating account of traveling
by train to Augusta and Milledgeville, GA to study pellagra, and
working in a "hidden" laboratory at the Augusta medical school.
Sinclair described Sydenstrickers wartime activities with him at
Oxford University and elsewhere in England, Holland and at Belsen.
Sinclair stated that Sydenstricker had displayed anger that was unusual
for him at a driver who had motored with them through a heavily mined
area in Holland in May 1945. They had traveled with two mobile
laboratories to survey and evaluate the nutritional status of the Dutch
who had undergone severe famine for
7 mo, and were planning the
refeeding after their liberation. Dr. Frederick Stare headed another
similar team of nutritionists in Holland. Sinclair described the
repulsive protein hydrolysates that were presumed to be tolerated well
by starved individuals. Some 10,000 persons were presumed to have died
from starvation in the acute famine in the Netherlands. Liberated Dutch
scientists joined Sinclair and Sydenstricker and their team. They
examined 3500 persons in Leiden, chosen at random, and performed 25,000
biochemical tests in a few weeks. One problem of interest was the
prevalent famine edema.
A photograph in the Sydenstricker collection in the Library at MCG depicts the group studying nutrition and army rations at Camp Carson, CO during World War II; included in the group is Dr. Albert Mendeloff, former editor of The American Journal of Clinical Nutrition. Medical students of Sydenstricker who went on to nationally recognized careers related to nutrition included William Kannel (Framingham Heart Study) and Curtis Hames (Evans County Study, MacArthur Fellow). Their remarks about their medical school days at the 1989 centenary symposium are archived in videotape in Dr. William Darbys historic collection at Vanderbilt University.
| Studies in niacin deficiency and pellagra |
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His investigations of riboflavin deficiency in humans, 19391941, included several publications on ocular manifestations (two with Sebrell as co-author), and combined deficiencies of riboflavin and niacin. Two papers on biotin deficiency induction with egg white and cure with biotin (1942) were collaborations with Singal and Harris Isbell.
| Nutrition in wartime |
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1 lb/wk for adults and half that for children,
who were given priority for milk and eggs. Communal feeding was
established in restaurants, schools and works canteens. The primary
drawback of the program was the monotony of the diet, whether at home
or in the feeding program. The rationing leveled the dietthe rich ate
less well and lost weight, and the poor ate more of the foods essential
for good nutrition and benefited from rationing. It was estimated that
the intake of iron, calcium, vitamin A and ascorbic acid was low for
adults. The general health of the population improved during the
3.5 y of war up to that time, and the clinical nutritional health
of the British people remained good. | Clinical medicine and nutrition |
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In the second Sydney Watson Smith Lecture of the Royal Society of
Medicine, Edinburgh in 1953 (6)
, Sydenstricker briefly
surveyed the history of vitamin deficiency diseases moving from Chinese
observations of night blindness and food intake 3000 years ago to the
explosion of knowledge of vitamins that had occurred during the 40
years preceding his lecture. This beautifully written historical
account and synthesis of the investigations is pertinent today and
provides an easily read summary of the exciting discoveries and their
application in the prevention and treatment of vitamin deficiency
diseases. He cites 80 seminal references. He concluded that the concept
of accessory food factors in the diet, other than energy and
macronutrients, that had been proposed by Hopkins in 1906 stimulated
investigations by Funk, McCollum, Osborne, Mendel and others that
formulated the hypothesis of deficiency diseases (beriberi, scurvy,
pellagra, rickets) and specific essential growth factors later termed
"vitamines," and finally vitamins. The research involved every
branch of medical science, i.e., biochemistry, physiology,
pharmacology, pathology, bacteriology and clinical and veterinary
medicine; despite skepticism and persistent suspicion of an infectious
or toxic etiology for these diseases, the research was met with more
enthusiasm than the discovery of bacteria and infectious
diseases. He reviewed the work on all of the individual
vitamins except vitamin E. He questioned the lack of explanation
for why and how the nicotinamide coenzymes involved in carbohydrate
metabolism produce the anatomical lesions of pellagra (which was still
the case almost 50 years later), "considering the great number of
potent enzymes in which riboflavin is active, it is surprising that the
manifestations of deficiency in the human subject are not more
striking." Sydenstrickers cogent remarks on vitamin therapy that
are still applicable today include administering vitamins in
therapeutic amounts to treat deficiency diseases until patients can
consume an adequate diet. If this is not possible, or if conditions
exist that interfere with intake, absorption or assimilation, then
vitamin supplementation should be continued indefinitely. Vitamins must
be added to deliberately inadequate therapeutic diets used to treat
diseases such as obesity. Patients with massive intestinal resections
should be prescribed large doses of supplements, and some may need
protein hydrolysates (or, today, amino acids). Preparation for surgery
in chronically ill patients with peptic ulcer disease, carcinomas of
the stomach or colon, and hyperthyroidism involves the use of vitamins.
On the other hand, healthy people eating a normal diet do not need
added vitamins. "Vitamins will not cure the ailments of the
psychoneurotic or the inertia and insomnia of the depressed. Neither
are vitamins a pick-me-up for the tired and hungry. Pills in no way can
replace food."
Pellagra played a pivotal role in the development of the modern
concept of nutritional deficiency disease and the recognition of
neurological disorders of malnutrition. As late as 19121916, the
Thompson-McFadden Pellagra Commission, after an extensive review,
declared that pellagra must be an infectious disease (bacteria,
protozoa). Through the work of Goldberger and others, the nutritional
etiology was finally accepted. In 1937, Elvehjem discovered that
nicotinic acid was the critical nutrient in therapeutic liver extracts.
Working in the southeastern United States, Sydenstricker had witnessed
the epidemic explosion of endemic pellagra during the Depression. His
research helped demonstrate the factors involved in the etiology of
pellagra. He described the coexistence of niacin and riboflavin
deficiency, and was instrumental in establishing the efficacy of niacin
therapy. He and Cleckley first described the syndrome of niacin
deficiency encephalopathy without the gastrointestinal and
dermatological findings of classic pellagra (1)
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They described a typical patient as follows: "Profound stupor or stupor alternating with delirium and variable reflex changes are the presenting phenomena. Quite regularly there is evidence of underfeeding, though definite signs of avitaminosis are rare and confined to occasional instances of glossitis ... Treatment of this high mortality group of patients with nicotinic acid was at first quite empirical and begun because one such person had a red atrophic tongue. In this condition, as in the acute psychoses already described, the results of the administration of nicotinic acid have been quite remarkably good." In several instances, the encephalopathy was treated first with thiamine with no response, but showed prompt and often impressive improvement with niacin therapy.
Sydenstrickers group described a variety of neurological and psychiatric symptoms associated with niacin deficiency. Although these symptoms have been related to central chromatolysis of neurons in various areas, the exact contribution of niacin deficiency is unclear because of the coexistence of multiple nutritional deficiencies. As Sydenstricker noted, "more than one factor might be concerned in the production of a typical deficiency syndrome, since the production of a specific deficiency syndrome is quite difficult with the deprivation of a single vitamin in normal human beings."
The work of Sydenstricker and Cleckley has been interpreted as advocating uncontrolled administration of niacin to patients with a variety of psychiatric disorders. Their studies in malnutrition have been cited to justify megavitamin therapy for schizophrenia, a treatment without validated efficacy. Sydenstricker practiced in an environment with an extremely high incidence of pellagra, a disease that was rampant in mental institutions. He specifically asserted that it would be "ridiculous" to infer that all stuporous or psychiatric conditions are manifestations of pellagra; and further, when definite niacin deficiency existed, replacement therapy might fail because of neuronal destruction. From their experience with psychotic, delirious and stuporous patients, they concluded that a trial of nicotinic acid might be worthwhile. These investigations were confounded by the vasodilatation effects of nicotinic acid that may improve mental symptoms such as delirium or dementia resulting from arteriosclerosis. Sydenstricker, however, understood the complexity of niacin metabolism and its synergism with other vitamins, tryptophan, protein intake and general nutritional status.
In his lecture to the Nutrition Foundation in 1958, following his
Goldberger award, Sydenstricker reviewed the history of pellagra
(5)
. He also included the work that he and Sebrell had
performed studying riboflavin deficiency, and the occurrence of corneal
vascularization as the earliest manifestation of ariboflavinosis. In
his 1939 article in The Journal of the American
Medical Association (7)
as a follow-up to Sebrell
and Butlers description of experimental riboflavin deficiency,
Sydenstricker described five patients with active or prior pellagra
whose cheilitis, scaly dermatitis and conjunctivitis cleared with large
doses of riboflavin (2060 mg oral or 3, 10, 20 or 50 mg parenteral/d)
while consuming an experimental diet deficient in nicotinic acid
(pellagra-producing).
In this modern age of communication, I strongly recommend that Sydenstrickers publications be read by current medical and graduate students, trainees, investigators, educators and practitioners for their timeless science, style, humor and readability. Reading them conveys the excitement and importance of nutrition in science and medicine.
| ACKNOWLEDGMENTS |
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| LITERATURE CITED |
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1. Meador K. J., Loring D. W., Nichols F. T., Adams R. J. & Feldman E. B. (1988) Virgil Sydenstricker: special reference to niacin deficiency encephalopathy. South. Med. J. 81:1042-1044.[Medline]
2. Sydenstricker V. P., Mason V. P. & Rivers T. M. (1917) Transfusion of blood by the citrate method. J. Am. Med. Assoc. 68:1678-1680.
3. Sydenstricker V. P., Mulherin W. A. & Howseal R. W. (1923) Sickle cell anemia, report of two cases in children, with necropsy in one case. Am. J. Dis. Child. 26:132-154.
4. Huisman T. H. & Sydenstricker V. P. (1962) Differences in gross structure of two electrophoretically identical minor hemoglobin components. Nature (Lond.) 193:489-491.
5. Sydenstricker V. P. (1958) The history of pellagra, its recognition as a disorder of nutrition and its conquest. Am. J. Clin. Nutr. 6:409-414.[Medline]
6. Sydenstricker V. P. (1953) The impact of vitamin research upon medical practice. Proc. Nutr. Soc. 12:256-269.
7. Sydenstricker V. P., Geeslin L. E., Templeton C. M. & Weaver J. W. (1939) Riboflavin deficiency in human subjects. J. Am. Med. Assoc. 113:1697-1700.
8.
Sydenstricker V. P. & Cleckley H. M. (1941) The effect of nicotinic acid in stupor, lethargy and various other psychiatric disorders. Am. J. Psychiatry 98:83-91.
9. Sydenstricker V. P. (1943) Nutrition under wartime conditions 1943 Harvey Lecture May 20, 1943. Bull. N.Y. Acad. Med. 19 749765. .
10. Goodrich W. H. & Sydenstricker V. P. (1927) Attendance on the citys sick poor as part of clinical instruction at the medical department, University of Georgia. Methods and Problems of Medical Education 6th series:247-249 The Rockefeller Foundation New York, NY .
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