Healthy newborn infants were studied in regard to daily urinary output of free and total
hydroxyproline and the results correlated with other recognized indices of skeletal …

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 …

Extract: Rates of urinary excretion of total hydroxyproline by 38 normal fullsize male infants
were determined on 176 occasions. Each urine collection period was 72 hours. When the …

The height velocity of 122 boys of 11 to 17 years is compared with their urinary total
hydroxyproline excretion and a close relation is shown. The importance of this is discussed …

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 …

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 …

Twenty-four hour urinary total hydroxyproline was measured in 70 normal males and 10
normal females between the ages of 5 through 49. Normal values for excretion of …

The total hydroxyproline: creatinine ratio has been determined in random samples of urine
collected from 1577 normal Bristol children and from children with hypothyroidism, growth …

Isotopic studies have indicated that the hydroxyproline excreted in urine is derived primarily
from the degradation of collagen (1, 2), and that the excretion of hydroxyproline can be used …

Urinary excretions of hydroxyproline, creatinine and urea in 24 h specimens from 5 siblings
have been determined monthly from 1971 to 1976 together with the measurements of body …