title: Collagen and elastin in the normal fetal bladder.
abstract: The development of muscle, collagen and elastic fibers was studied histologically in 15 human fetal bladder specimens. Muscle thickness progressively increased and the relative collagen content in the muscle decreased during gestation. The ratio of thick-to-thin collagen fibers also decreased, whereas elastic fibers increased. These findings document the normal process of maturation of the fetal bladder and serve as a basis for comparison with congenitally obstructed fetal bladders.
authors.affiliation: Department of Urology, University of California School of Medicine, San Francisco.
authors.forename: K M
authors.initials: KM
authors.lastname: Kim
authors.forename: B A
authors.initials: BA
authors.lastname: Kogan
authors.forename: C A
authors.initials: CA
authors.lastname: Massad
authors.forename: Y C
authors.initials: YC
authors.lastname: Huang
mesh_terms: D003094:Collagen / Q000032:analysis*; D004547:Elastic Tissue / Q000196:embryology; D004549:Elastin / Q000032:analysis*; D005260:Female; D005333:Fetus / Q000196:embryology*; D006801:Humans; D008297:Male; D009130:Muscle, Smooth / Q000737:chemistry* / Q000196:embryology; D012189:Retrospective Studies; D001743:Urinary Bladder / Q000737:chemistry* / Q000196:embryology
chemical_list: D003094:Collagen; D004549:Elastin