Urinary excretion of 5-L-oxoproline (pyroglutamic acid) during early life in term and preterm infants

AA Jackson, C Persaud, M Hall, S Smith… - Archives of Disease in …, 1997 - fn.bmj.com
Urinary 5-L-oxoproline was measured in term and preterm infants from shortly after birth until
6 weeks of postnatal age to determine their ability to synthesise glycine. In term infants the …

Urinary excretion of 5-L-oxoproline (pyroglutamic acid) is increased during recovery from severe childhood malnutrition and responds to supplemental glycine

C Persaud, T Forrester, AA Jackson - The Journal of nutrition, 1996 - Elsevier
We hypothesized that a limitation in the endogenous formation of glycine might constrain
catch-up growth during recovery from severe childhood malnutrition. The urinary excretion of …

Comparison of urinary 5-L-oxoproline (L-pyroglutamate) during normal pregnancy in women in England and Jamaica

AA Jackson, C Persaud, G Werkmeister… - British Journal of …, 1997 - cambridge.org
Urinary 5-L-oxoproline was measured during normal pregnancies in Southampton, England
and Kingston, Jamaica. The CV of 5-L-oxoproline excretion in urine, determined over 7 d in …

The excretion of 5‐oxoproline in urine, as an index of glycine status, during normal pregnancy

C Persaud, J McDermott, B De Benoist… - … Journal of Obstetrics …, 1989 - Wiley Online Library
The urinary excretion of 5‐oxoproline, which may be used as an index of glycine status, was
investigated in 30 normal pregnant women during different stages of pregnancy and in 18 …

The urinary excretion of amino acids and sugars in early infancy

LI Woolf, AP Norman - The Journal of Pediatrics, 1957 - Elsevier
The amino acids have been examined in 273 specimens of urine from 119 infants, aged
from a few hours to 8 months. sixty of these specimens have been examined for sugars. In …

Urinary hydroxyproline: creatinine ratio in normal term, pre-term, and growth-retarded infants.

MK Younoszai, A Kacic, L Dilling… - Archives of disease in …, 1969 - ncbi.nlm.nih.gov
The daily urinary excretion of endogenous hydroxyproline is believed to be a reliable index
of collagen turnover, particularly the collagen matrix of bone (Ziff et al., 1956; Prockop and …

Excretion of hydroxyproline in urine by premature and normal full-term infants and those with intrauterine growth retardation during the first three days of life

MK Younoszai, JC Haworth - Pediatric Research, 1968 - nature.com
Extract: The mean daily urinary excretion of hydroxyproline on the first day of life was 4.4
mg/24 h for 50full-term normal infants, 3.5 mg/24 h for 17 full-term infants with intrauterine …

PYROGLUTAMIC ACIDURIA Studies in an Infant with Chronic Metabolic Acidosis

L Hagenfeldt, A Larsson, R Zetterstrom - Acta Pædiatrica, 1974 - Wiley Online Library
A one‐year‐old girl with chronic metabolic acidosis was found to have normal renal acidi‐
fication. In the urine, however, she excreted a daily amount of 50 mmoles of L …

Urinary hydroxyproline: creatinine ratio of normal humans at various ages

DJ Allison, A Walker, QT Smith - Clinica chimica acta, 1966 - Elsevier
The urinary hydroxyproline excretion from normal individuals ranging from birth to 70 years
of age has been expressed as milligrams hydroxyproline to milligrams creatinine excreted …

Urinary excretion of 5-L-oxoproline (pyroglutamic acid) is increased in normal adults consuming vegetarian or low protein diets

AA Jackson, C Persaud, TS Meakins, R Bundy - The Journal of nutrition, 1996 - Elsevier
A method for measuring 5-L-oxoproline in urine, which involves isolation by short-column
chromatography, acid hydrolysis to glutamic acid and enzymic assay of glutamic acid, was …