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 …

Total peptide-bound and free urinary hydroxyproline and creatinine were estimated in 50
newborn infants, full-term, premature or growth-retarded, after 3, 10 or 20 days of life. The …

Urine total, free and peptide bound hydroxyproline excretion have been measured at regular
intervals after birth in 5 infants with gestations from 32 to 34 weeks and in 2 infants with …

The significance of urinary total hydroxyproline in clinical medicine has been established as
an indicator of the rate of collagen metabolism. It has been employed in assessing the …

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 …

Beginning with the report of Ziff, Kibrick, Dresner, and Gribetz (2), evidence accumulated in
recent years has indicated that urinary hydroxyproline excretion reflects collagen …

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 …

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 …

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