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Type III collagen decreases in normal fetal bovine bladder development
L S Baskin1, S Constantinescu, J W Duckett
1Division of Urology, Children's Hospital of Philadelphia, Pennsylvania.
The Journal of Urology
|August 1, 1994
Summary
Bladder compliance increases during fetal development, correlating with collagen type III changes. This study in bovine bladders reveals collagen ratios impact bladder elasticity from development through aging.
Area of Science:
- Urology
- Developmental Biology
- Biochemistry
Background:
- Bladder compliance changes significantly during fetal development and aging.
- Collagen types I and III are major structural components of the bladder wall.
Purpose of the Study:
- To investigate the relationship between bladder compliance and collagen composition during bovine development.
- To analyze changes in collagen types I and III ratios in relation to bladder elasticity.
Main Methods:
- Biochemical analysis of collagen types I and III in bovine bladders at different developmental stages.
- Correlation of collagen composition with measured bladder compliance.
Main Results:
- Bladder compliance increases from the first trimester to the newborn period, then modestly decreases in adulthood.
- The percentage of type III collagen decreases during fetal development (first trimester to newborn).
- The ratio of type III to type I collagen mirrors changes in bladder compliance throughout development and into adulthood.
Conclusions:
- Changes in collagen composition, particularly the ratio of type III to type I collagen, are key drivers of bladder compliance changes during development and aging.
- The bovine model effectively demonstrates the link between structural collagen remodeling and bladder functional maturation.
- Understanding these collagen dynamics offers insights into normal bladder development and age-related changes.