S. Schwartz

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Pervasive occult gastrointestinal bleeding in an Alaska native population with prevalent iron deficiency. Role of Helicobacter pylori gastritis.

D. Ahlquist, E. Gunter, R. Yip, 1997, JAMA.

Quantitative fecal recovery of ingested hemoglobin-heme in blood: comparisons by HemoQuant assay with ingested meat and fish.

M. Ellefson, S. Schwartz, 1985, Gastroenterology.

Modification of radiosensitivity by porphyrins. II. Transplanted rhabdomyosarcoma in mice.

L. Cohen, S. Schwartz, 1966, Cancer research.

Gastrointestinal blood loss and anemia in runners.

D. Ahlquist, D. Ilstrup, J. Stewart, 1984, Annals of internal medicine.

A simple carbon monoxide breath test to estimate erythrocyte turnover.

R. Engel, M. Levitt, M. Ellefson, 1992, The Journal of laboratory and clinical medicine.

Fecal blood levels in health and disease. A study using HemoQuant.

W. Taylor, D. Ahlquist, D. McGill, 1985, The New England journal of medicine.

The conversion of protoporphyrin-C14 to heme compounds and bilirubin in dogs.

S. Schwartz, C. J. Watson, G. Ibrahim, 1966, Metabolism: clinical and experimental.

Hematocrit values in white, black, and American Indian children with comparable iron status. Evidence to support uniform diagnostic criteria for anemia among all races.

R. Yip, A. Deinard, S. Schwartz, 1984, American journal of diseases of children.

Developmental changes in serum ferritin and erythrocyte protoporphyrin in normal (nonanemic) children.

R. Yip, A. Deinard, S. Schwartz, 1983, The American journal of clinical nutrition.

IRON DEFICIENCY AMONG INCARCERATED JUVENILE DELINQUENTS

A. Deinard, G. Rosen, S. Schwartz, 1984, Pediatric Research.

A stool collection device: the first step in occult blood testing.

D. Ahlquist, M. Ellefson, S. Schwartz, 1988, Annals of internal medicine.

Causes of iron deficiency in adolescent athletes.

M. Ellefson, S. Schwartz, H. Nickerson, 1989, The Journal of pediatrics.

Screening for iron deficiency with the erythrocyte protoporphyrin test.

R. Yip, A. Deinard, S. Schwartz, 1983, Pediatrics.

HemoQuant, a new quantitative assay for fecal hemoglobin. Comparison with Hemoccult.

W. Taylor, D. Ahlquist, D. McGill, 1984, Annals of internal medicine.

The "HemoQuant" test: a specific and quantitative determination of heme (hemoglobin) in feces and other materials.

D. Ahlquist, M. Ellefson, S. Schwartz, 1983, Clinical chemistry.

Effects of high-fiber diet on fecal blood content (HemoQuant assay) in healthy subjects

J. Slavin, E. A. Melcher, S. Schwartz, 1991, Digestive Diseases and Sciences.

Some studies of the comparative biology of human and bovine erythropoietic porphyria.

H. H. Hoyt, F. Spurrell, S. Schwartz, 1959, A.M.A. archives of internal medicine.

Fluorophotometric Determination of Uranium

R. Ferretti, S. Schwartz, G. R. Price, 1953 .

STUDIES OF COPROPORPHYRIN. VIII. REINVESTIGATION OF THE ISOMER DISTRIBUTION IN JAUNDICE AND LIVER DISEASES.

S. Schwartz, C. J. Watson, M. A. Aziz, 1964, The Journal of laboratory and clinical medicine.

STUDIES OF COPROPORPHYRIN. VII. ADAPTATION OF THE ERIKSEN PAPER CHROMATOGRAPHIC METHOD TO THE QUANTITATIVE ANALYSIS OF THE ISOMERS IN NORMAL HUMAN URINE.

S. Schwartz, C. J. Watson, M. A. Aziz, 1964, The Journal of laboratory and clinical medicine.

The metabolic fate of [porphyrin-14C] cytochrome c in dogs.

S. Schwartz, P. Edmondson, J. Barelkovski, 1975, Life sciences.

A Simple Test for Urinary Porphobilinogen.∗

S. Schwartz, C. J. Watson, 1941 .

Porphyrin content of bone marrow and liver in the various forms of porphyria.

R. Schmid, S. Schwartz, C. J. Watson, 1954, A.M.A. archives of internal medicine.

Determination of Porphyrins in Biological Materials

S. Schwartz, I. Bossenmaier, H. Dinsmore, 2006 .

II. Isolation of a Dextrorotatory Urobilin from Human Fistula Bile.∗

S. Schwartz, C. J. Watson, 1942 .

Studies of Urobilinogen: IV The Quantitative Determination of Urobilinogen by Means of the Evelyn Photoelectric Colorimeter

S. Schwartz, C. J. Watson, V. Sborov, 1944 .

Early labeling of bilirubin from glycine and delta-aminolevulinic acid in bile fistula dogs, with special reference to stimulated versus suppressed erythropoiesis.

S. Schwartz, C. J. Watson, G. Ibrahim, 1966, Metabolism: clinical and experimental.

ISOTOPIC STUDIES OF PORPHYRIN AND HEMEMETABOLISM: BONANZAS AND PITFALLS *

P. Berk, W. Swaim, S. Schwartz, 1974, Annals of the New York Academy of Sciences.

Erythropoietic defects in protoporphyria: a study of factors involved in labelling of porphyrins and bile pigments from ALA- 3 H and glycine- 14 C.

J. A. Johnson, A. Anderson, S. Schwartz, 1971, The Journal of laboratory and clinical medicine.

Experimental Porphyria. III. Hepatic Type Produced by Sedormid.∗

R. Schmid, S. Schwartz, 1952, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

Urobilinogen in Urine and Feces

J. Reinhold, S. Schwartz, M. Knowlton, 1958 .

III. Formation of D-Urobilin from Mesobilirubinogen in Human Bile.∗

S. Schwartz, C. J. Watson, V. Sborov, 1942 .

Porphyrin chromogens or precursors in urine, blood, bile, and feces.

S. Schwartz, C. J. Watson, I. Bossenmaier, 1951, The Journal of laboratory and clinical medicine.

Studies of Urobilinogen: V A Simple Method for the Quantitative Recording of the Ehrlich Reaction as Carried out with Urine and Feces

S. Schwartz, C. J. Watson, V. Sborov, 1944 .

THE CONVERSION OF HEMATIN TO BILIRUBIN FOLLOWING INTRAVENOUS ADMINISTRATION IN HUMAN SUBJECTS.

S. Schwartz, C. J. Watson, I. Pass, 1945, The Journal of clinical investigation.

Some studies of the comparative biology of human and bovine porphyria erythropoietica.

H. H. Hoyt, F. Spurrell, S. Schwartz, 1958, Transactions of the Association of American Physicians.

Erythropoietic (congenital) porphyria: A rare abnormality of the normoblasts.

R. Schmid, S. Schwartz, R. D. Sundberg, 1955, Blood.

Normal limits of urinary coproporphyrin excretion determined by an improved method.

L. Zieve, S. Schwartz, C. J. Watson, 1953, The Journal of laboratory and clinical medicine.

The manifestations of the different forms of porphyria in relation to chemical findings.

R. Schmid, S. Schwartz, C. J. Watson, 1951, Transactions of the Association of American Physicians.

Accumulation of protoporphyrin IX from delta-aminolevulinic acid in bovine skin fibroblasts with hereditary erythropoietic protoporphyria. A gene-dosage effect

S. Sassa, G. Ruth, S. Schwartz, 1981, The Journal of experimental medicine.

Relation of Porphyrin Content to Red Cell Age: Analysis by Fractional Hemolysis 1

S. Schwartz, L. W. Johnson, 1972, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

Isotopic studies of erythrocyte survival in normal and porphyric cattle: influence of light exposure, blood withdrawal, and splenectomy.

S. Schwartz, L. W. Johnson, 1970, American journal of veterinary research.

Studies of the uroporphyrins. III. An improved method for the decarboxylation of uroporphyrin.

S. Schwartz, P. Edmondson, 1953, The Journal of biological chemistry.

Non-hemoglobin heme intermediates in the biosynthesis of bile pigments.

S. Schwartz, R. Cardinal, 1967, Medicine.

IV. Formation of (Laevorotatory) Stercobilin from Mesobilirubinogen in Human Feces.∗

S. Schwartz, C. J. Watson, V. Sborov, 1942 .

I. Nature of Urobilin Obtained after Amalgam Reduction of Human Fistula Bile.∗

S. Schwartz, C. J. Watson, 1942 .

A HITHERTO UNRECOGNIZEDFORMCHARACTERIZEDBY LACK OF SYMPTOMSIN SPITE OF THE EXCRETIONOF

L. Jacobson, S. Schwartz, C. J. Watson, 2013 .

STUDIES OF COPROPORPHYRIN. A HITHERTO UNRECOGNIZED FORM CHARACTERIZED BY LACK OF SYMPTOMS IN SPITE OF THE EXCRETION OF LARGE AMOUNTS OF COPROPORPHYRIN 1

S. Schwartz, C. J. Watson, W. Schulze, 2022 .

Green jaundice

A. Greenberg, S. Schwartz, I. Bossenmaier, 1971, The American Journal of Digestive Diseases.

Experimental porphyria. IV. Studies of liver catalase and other heme enzymes in sedormid porphyria.

R. Schmid, S. Schwartz, J. Figen, 1955, The Journal of biological chemistry.

Experimental Porphyria. II. Type Produced by Lead, Phenylhydrazine and Light.∗

R. Schmid, S. Schwartz, M. Keprios, 1952, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

A micromethod for the quantitative determination of the urinary coproporphyrin isomers (I and III).

S. Schwartz, V. Hawkinson, 1947, The Journal of biological chemistry.

STUDIES OF THE UROPORPHYRINS I. THE PURIFICATION OF UROPORPHYRIN I AND THE NATURE OF WALDENSTRÖM'S UROPORPHYRIN, AS ISOLATED FROM PORPHYRIA MATERIAL

S. Schwartz, C. J. Watson, M. Grinstein, 1945 .

STUDIES OF THE UROPORPHYRINS II. FURTHER STUDIES OF THE PORPHYRINS OF THE URINE, FECES, BILE, AND LIVER IN CASES OF PORPHYRIA, WITH PARTICULAR REFERENCE TO A WALDENSTRÖM TYPE PORPHYRIN BEHAVING AS AN ENTITY ON THE TSWETT COLUMN

S. Schwartz, C. J. Watson, V. Hawkinson, 1945 .

RED, WHITE, AND BLUE EGGS AS MODELS OF PORPHYRIN AND HEME METABOLISM *

S. Schwartz, B. Stephenson, Durriya H. Sarkar, 1975, Annals of the New York Academy of Sciences.

Loss of hereditary uterine protoporphyria through chromosomal rearrangement in mutant Rhode Island red hens.

B. A. Schacter, S. Schwartz, R. Shoffner, 1980, The International journal of biochemistry.

Hereditary Bovine Protoporphyria, a “Total Body” Deficiency of Ferrochelatase: Some Basic Distinctions From Hypochromic Anemias

G. Ruth, S. Schwartz, B. Stephenson, 1978 .

The relation of erythrocyte coproporphyrin and protoporphyrin to erythropoiesis.

H. Wikoff, S. Schwartz, 1952, The Journal of biological chemistry.

The chemistry of experimental chloroma. II. Isolation of crystalline protoporphyrin, its origin and relation to other porphyrins.

J. Schultz, S. Schwartz, 1956, Cancer research.

Chapter 3 – FLUORESCENCE MICROSCOPY

S. Schwartz, G. R. Price, George R. Price, 1956 .

Utilization of porphobilinogen carbon-14 in biosynthesis of vitamin B12.

K. Ideda, I. Miller, S. Schwartz, 1959, Science.

Experimental Porphyria. I. Isolation of Uroporphyrin I from Bone Marrow of Lead Poisoned Rabbits.∗

R. Schmid, S. Schwartz, B. Hanson, 1952, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

Bovine protoporphyria: the first nonhuman model of this hereditary photosensitizing disease.

G. Ruth, S. Schwartz, B. Stephenson, 1977, Science.

Case-control study of colorectal cancer and fecapentaene excretion.

R. Hoover, M. Schiffman, J. Rosenthal, 1989, Cancer research.

Case-Control Study of Colorectal Cancer and Fecal Mutagenicity 1

Padmanabhan, R. Hoover, M. Schiffman, 2006 .

Case-Control Study of Colorectal Cancer and Fecapentaene Excretion1

Padmanabhan, R. Hoover, M. Schiffman, 2006 .

The preparation of morphologically intact leukocytes from peripheral blood by means of gramicidin and lysolecithin.

T. Singer, S. Schwartz, I. Silberbach, 1947, Blood.

Patterns of occult bleeding in asymptomatic colorectal cancer

D. Ahlquist, H. Wieand, C. Moertel, 1990, Cancer.

Partial purification and some properties of thyroid peroxidase solubilized by extraction with n-butanol.

F. Maloof, S. Schwartz, B. Davidson, 1973, Preparative biochemistry.

Effects of chronic exposure to sublethal concentrations of lead acetate on heme synthesis and immune function in red-tailed hawks

Ellen M. Lawler, P. Redig, G. E. Duke, 1991, Archives of environmental contamination and toxicology.

An improved method for the determination of urinary coproporphyrin and an evaluation of factors influencing the analysis.

L. Zieve, S. Schwartz, C. J. Watson, 1951, The Journal of laboratory and clinical medicine.

Modification of Radiosensitivity by Porphyrins: Studies of Tumors and Other Systems

S. Schwartz, R. Walters, M. Keprios, 1978 .

Urinary and Fecal Coproporphyrin Excretion in Rats: I. Results in Normals and Castrates.∗

S. Schwartz, C. J. Watson, F. W. Hofebauer, 1953, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

Conversion of Porphobilinogen to Porphyrin by Liver Homogenates of Rats with Experimental Hepatic Porphyria.∗

S. Schwartz, Alphonso Merchante, Bernardo Leo Wajchenberg, 1957, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

Porphyrins in the Bone Marrow and Circulating Erythrocytes in Experimental Anemias.∗

R. Schmid, S. Schwartz, C. J. Watson, 1950, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

Direct spectrofluorophotometric determination of porphyrin in diluted urine.

S. Schwartz, P. Edmondson, D. Sarkar, 1976, Annals of clinical research.

The pigmentation of dental tissues in erythropoietic (congenital) porphyria.

R. Gorlin, J. Trodahl, S. Schwartz, 1972, Journal of oral pathology.

Isolation of Uroporphyrin from the Feces in Idiopathic Porphyria.∗

S. Schwartz, C. J. Watson, 1941 .

STUDIES OF COPROPORPHYRIN. I. THE PER DIEM EXCRETION AND ISOMER DISTRIBUTION OF COPROPORPHYRIN IN NORMAL HUMAN URINE.

S. Schwartz, C. J. Watson, D. Sutherland, 1949, The Journal of clinical investigation.

A STUDY OF THE SUPPOSED CONVERSION OF PROTOPORPHYRIN TO COPROPORPHYRIN BY THE LIVER I. THE FATE OF PARENTERALLY ADMINISTERED PROTOPORPHYRIN IN DOGS WITH BILE RENAL FISTULAE

S. Schwartz, C. J. Watson, I. Pass, 1941 .

Quantitative assay of erythrocyte "free" and zinc-protoporphyrin: clinical and genetic studies.

G. Ruth, S. Schwartz, D. Sarkar, 1980, The International journal of biochemistry.

Methylene blue protects intestinal mucosa from free radical-mediated sublethal radiation damage.

J. Delaney, W. Hrushesky, T. Langevin, 1988, Free radical biology & medicine.

Carbon Monoxide Production from Heme Compounds by Bacteria

R. Engel, J. Matsen, S. Schwartz, 1972, Journal of bacteriology.

Influence of aspirin and ethanol on fecal blood levels as determined by using the HemoQuant assay.

A. Zinsmeister, D. Ahlquist, R. Ellefson, 1987, Mayo Clinic proceedings.

Blood changes in humans following total body irradiation

L. Jacobson, J. Nickson, S. Schwartz, 1947 .

Porphyrins in Urine

S. Schwartz, E. Talman, 1958 .

The metabolism of thyroxine in C57 mice and in C3H mice with and without mammary tumors.

S. Schwartz, J. Gross, 1951, Cancer research.

Urinary and Fecal Coproporphyrin Excretion in Rats. III. Excretion of Injected Coproporphyrin.∗

F. W. Hoffbauer, S. Schwartz, C. J. Watson, 1953, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

D. G. Mitchell, S. Schwartz, J. Julian, 1975 .

STUDIES OF COPROPORPHYRIN. III. IDIOPATHIC COPROPORPHYRINURIA; A HITHERTO UNRECOGNIZED FORM CHARACTERIZED BY LACK OF SYMPTOMS IN SPITE OF THE EXCRETION OF LARGE AMOUNTS OF COPROPORPHYRIN.

L. Jacobson, S. Schwartz, C. J. Watson, 1949, The Journal of clinical investigation.

Idiopathic coproporphyrinuria; a hitherto unrecognized form characterized by lack of symptoms in spite of the excretion of large amounts of coproporphyrin.

S. Schwartz, C. J. Watson, 1949, Journal of Clinical Investigation.

Chromatography on Florisil in the quantitative estimation of urinary and other porphyrins.

S. Schwartz, D. Sarkar, B. Stephenson, 1976, Clinical chemistry.

Porphyrins and porphyrin precursors in human and experimental porphyria.

S. Schwartz, 1955, Federation proceedings.

GrowthofPlasmodium falciparum inhumanerythrocytes containing abnormal membraneproteins

R. Nagel, I. Sussman, H. Ranney, 1990 .

The Microfluorometric Determination of Uranium

R. Ferretti, S. Schwartz, G. R. Price, 1945 .