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H. Hoberman (1947)
The determination of guanidoacetic acid and arginine in human urine and serum.The Journal of biological chemistry, 167 3
E. Marples (1942)
CREATINURIA IN INFANCY AND IN CHILDHOOD: II. CREATINURIA OF PREMATURE INFANTSJAMA Pediatrics, 64
Nitowsky Hm, Puck Tt (1952)
A modified radioiodine test for thyroid function.Journal of Laboratory and Clinical Medicine, 39
H. Benjamin, H. Gordon, E. Marples (1943)
CALCIUM AND PHOSPHORUS REQUIREMENTS OF PREMATURE INFANTSJAMA Pediatrics, 65
E. Sims, D. Seldin (1949)
Reabsorption of creatine and guanidoacetic acid by the renal tubules.The American journal of physiology, 157 1
S. Cohen (1953)
A study of the synthesis of creatine by liver preparations.The Journal of biological chemistry, 201 1
J. Peters (1942)
The determination of creatinine and creatine in blood and urine with the photoelectric colorimeter.Journal of Biological Chemistry, 146
V. Potter, C. Elvehjem (1936)
A modified method for the study of tissue oxidations.Journal of Biological Chemistry, 114
H. Barnett, W. Hare, H. Mcnamara, R. Hare (1948)
Influence of Postnatal Age on Kidney Function of Premature Infants.∗Proceedings of the Society for Experimental Biology and Medicine, 69
R. Flood, R. Pinelli (1949)
Urinary glycocyamine, creatine and creatinine; their excretion by normal infants and children.American journal of diseases of children, 77 6
B. Miller, R. Dubos (1937)
DETERMINATION BY A SPECIFIC, ENZYMATIC METHOD OF THE CREATININE CONTENT OF BLOOD AND URINE FROM NORMAL AND NEPHRITIC INDIVIDUALSJournal of Biological Chemistry, 121
S. Cohen, P. Buckley (1951)
The synthesis of creatine by preparations of liver from embryos and adults of various species.The Journal of biological chemistry, 193 2
J. Peters, D. Slyke (1931)
Quantitative clinical chemistry
J. Dubnoff, H. Borsook (1941)
A MICROMETHOD FOR THE DETERMINATION OF GLYCOCYAMINE IN BIOLOGICAL FLUIDS AND TISSUE EXTRACTSJournal of Biological Chemistry, 138
R. Hare (1950)
Endogenous Creatinine in Serum and Urine.∗ †Proceedings of the Society for Experimental Biology and Medicine, 74
Mitchell Rubin, Erika Bruck, Milton Rapoport, Marjorie Snively, H. McKay, Alverna Baumler (1949)
Maturation of renal function in childhood; clearance studies.The Journal of clinical investigation, 28 5 Pt 2
H. Borsook, J. Dubnoff (1947)
The hydrolysis of phosphocreatine and the origin of urinary creatinine.The Journal of biological chemistry, 168 2
H. Barnett, K. Hare (1948)
Measurement of glomerular filtration rate in premature infants.The Journal of clinical investigation, 27 6
R. Pitts (1943)
A RENAL REABSORPTIVE MECHANISM IN THE DOG COMMON TO GLYCIN AND CREATINEAmerican Journal of Physiology, 140
H. Borsook, J. Dubnoff, J. Lilly, William Marriott (1941)
THE FORMATION OF GLYCOCYAMINE IN MAN AND ITS URINARY EXCRETIONJournal of Biological Chemistry, 188
Lynne Hoag (1932)
APPARATUS FOR THE QUANTITATIVE COLLECTION OF URINE AND OF STOOLS IN MALE INFANTSJAMA Pediatrics, 44
E. Marples, S. Levine (1936)
CREATINURIA OF INFANCY AND CHILDHOOD: I. NORMAL VARIATIONS: CREATINE TOLERANCE TESTS AND THE EFFECT OF AMINO-ACETIC ACID IN NORMAL INFANTSJAMA Pediatrics, 51
H. Gordon, S. Levine, M. Wheatley, E. Marples (1937)
RESPIRATORY METABOLISM IN INFANCY AND IN CHILDHOOD: XX. THE NITROGEN METABOLISM IN PREMATURE INFANTS—COMPARATIVE STUDIES OF HUMAN MILK AND COW'S MILKJAMA Pediatrics, 54
G. Mattar, H. Barnett, H. Mcnamara, H. Lauson (1952)
Measurement of glomerular filtration rate in children with kidney disease.A.M.A. American journal of diseases of children, 84 5
Henry Barnett (1950)
Kidney function in young infants.Pediatrics, 5 2
PREMATURE infants excrete much less creatine in the urine than young full-term infants, whose urinary creatine may amount to approximately 40% of the total creatinine.1 The present investigation was planned to clarify some of the mechanisms accounting for this difference. Studies were made on the effect of feeding creatine or its precursors on the excretion of creatine, creatinine, and guanidoacetic acid by these infants. In other observations, blood levels of creatine and creatinine were determined in relation to urinary excretion. Analyses were also made of the creatine content of muscle at various stages of fetal development. The results suggest that the premature infant stores or utilizes creatine to a greater extent than does the full-term infant. METHODS Observations were made on boy babies who were given partially skimmed cow's milk-carbohydrate feeding mixtures of approximately 110 to 130 calories per kilogram of body weight per day with added vitamins A,
American journal of diseases of children – American Medical Association
Published: Dec 1, 1953
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