Hydroxyproline Centiles for Normal Adolescent Boys and Girls

Clark, Stephanie; Pa, Zorab

doi:10.1097/00003086-197811000-00034

Cited by 5 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…THP excretion in urine is thought to be a good indicator of collagen turnover in general (Prockop & Kivirikko 1967) and is correlated with the growth rate of children (Clark & Zorab 1978). A higher growth rate in children with IS could be the reason for their increased THP excretion (Zorab et al 1970).…”

Section: Discussionmentioning

confidence: 99%

Serum Somatomedin a and Non-Dialyzable Urinary Hydroxyproline in Girls with Idiopathic Scoliosis

Skogland

Miller

Skottner

et al. 1981

Acta Orthopaedica Scandinavica

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Serum Somatomedin a and Non-Dialyzable Urinary Hydroxyproline in Girls with Idiopathic Scoliosis

Skogland

Miller

Skottner

et al. 1981

Acta Orthopaedica Scandinavica

View full text Add to dashboard Cite

“…The subjects were from the Royal Hospital School Longitudinal Growth Study (Clark and Zorab 1978). All were pupils at boarding schools where they resided continuously during the school term.…”

Section: Methodsmentioning

confidence: 99%

A longitudinal analysis of the growth of limb segments in adolescence

Cameron

Tanner

Whitehouse

1982

Annals of Human Biology

View full text Add to dashboard Cite

The growth of upper and lower-limb segments of 96 adolescent boys and girls from the Royal Hospital School Longitudinal Study was analysed. Preece-Baines Model 1 curves were fitted to the longitudinal data to obtain, for each measurement, age at peak velocity and the magnitude of this velocity. Mean-constant peak velocities were between 1-0 and 2-5 cm/yr in all segments. They were in all cases greater than the values obtained from fitting the P-B curve to the cross-sectional means at successive ages. Boys had greater peak velocities than girls in all measurements (sex ratio 1-1 to 1-4). On average distal segments preceded more proximal segments in the ages at which peak velocity occurred. Considerable individual differences, however, occurred in the order for the upper limb segments. These differences seemed to be related to the individual's tempo of growth; late developers had a significantly different order to early developers.

show abstract

“…'0 ResultsFig. 1shows THP levels for the scoliotic girls, plotted on normal centiles for THP 10. The different types of scoliosis are shown.…”

mentioning

confidence: 99%

One year's study of growth and total hydroxyproline excretion in scoliotic children.

Clark¹,

Harrison²,

Zorab³

1980

Archives of Disease in Childhood

View full text Add to dashboard Cite

SUMMARY 21 children with scoliosis were studied for a year during which time 24-hour urinary total hydroxyproline levels were estimated and anthropometric measurements were made on 4 occasions. The total hydroxyproline levels (using hydroxyproline centiles) and the uncorrected heights of the children were all normal. The sitting heights of the children were below average, but, although the sample was small, the findings indicate that the children's 'uncoiled' height would be greater than average.In scoliosis, progressive changes in the vertebral column may occur with growth. Its onset is generally noticed in infancy or adolescence.'-2 Measurable deterioration can occur during times of rapid increase in height. Because of the curvature of the spine in scoliotic children, the predicted normal height for age and stage of development is difficult to estimate. Significant differences in standing height between normal and scoliotic children were found by Willner,34 and Burwell et al.5 Burwell and coworkers found disproportion in upper limb length which was related to the convexity of the curvature.There is a close relationship between rate of growth and total hydroxyproline (THP) excretion. Fast growth rates are associated with high levels of urinary THP due to increased collagen turnover'69 Slow growth rates are associated with low THP levels. We studied THP excretion and anthropometric measurements of growth in a group of scoliotic children for a year. The purpose of the study was to compare the findings for these children with those for normal children'0 to see if there was any difference in THP levels and body size between the two groups.Material 21 children attending a scoliotic clinic as outpatients were studied. None of these children had had spinal surgery. 14 were girls with an age of 8 *2-16* 5 (mean

show abstract

Hydroxyproline Centiles for Normal Adolescent Boys and Girls

Cited by 5 publications

References 0 publications

Serum Somatomedin a and Non-Dialyzable Urinary Hydroxyproline in Girls with Idiopathic Scoliosis

Serum Somatomedin a and Non-Dialyzable Urinary Hydroxyproline in Girls with Idiopathic Scoliosis

A longitudinal analysis of the growth of limb segments in adolescence

One year's study of growth and total hydroxyproline excretion in scoliotic children.

Contact Info

Product

Resources

About