14 結果
OBJECTIVE
This histomorphometric study compared the open and prematurely fused side of the coronal suture in subjects with unilateral coronal synostosis (UCS).
METHODS
Sutures and parasutural bone were obtained from seven subjects with nonsyndromic UCS during operative correction at 3 to 24 months
The aim of the present study was to determine the presence of alkaline phosphatase during various stages in development and closure of the sutura interfrontalis. The histological sections reveal that this enzyme could primarily be demonstrated in the dura mater of this suture. In further
The purpose of the present study was to determine the presence of alkaline phosphatase within the coronal suture, the dura mater and the pericranium. The histologic sections reveal that no alkaline phosphatase activity could be observed within the coronal suture as well as the dura mater, while the
Osteoblasts from involved and noninvolved sutures and normal membranous bone in patients with premature unilateral coronal synostosis were harvested and grown in tissue culture. The cultures were characterized to establish specific basal metabolic parameters of cellular growth and the production of
It is well known that cranial flat bone experiences growth and development at the sutural interface, which is regarded as a neutral zone to control mechanical stimuli. In osteopetrotic (op/op) mice, meanwhile, cranial deformation is produced by the deficiency of osteoclasts and the subsequent defect
A 7-year-old boy was referred to the children's hospital because of gross oedema and tiredness. Massive proteinuria was found and the condition was diagnosed as a childhood nephrotic syndrome. Concomitantly, pathologically low levels of serum alkaline phosphatase were recorded, and this, together
Osteoblasts derived from sagittal sutures with premature synostosis, noninvolved coronal sutures, and normal frontal bone were harvested and cultured as cells in an attempt to determine if osteoblasts at the site of premature fusion exhibited altered in vitro cellular dynamics. Basal metabolic
Osteopetrotic (op/op) mice are known to commonly show a failure of tooth eruption. It is also well understood that masticatory function is highly associated with the craniofacial morphology of the growing mouse; however, the effects on sutural growth have not been studied. The present study was
BACKGROUND
The higher prevalence of metopic and sagittal suture synostosis in male infants suggests a role for androgens in early craniofacial development. These experiments characterize the influence of androgen stimulation on growth and differentiation of fetal dural and calvarial bone cells and
Previously, we reported NELL-1 as a novel molecule overexpressed during premature cranial suture closure in patients with craniosynostosis (CS), one of the most common congenital craniofacial deformities. Here we describe the creation and analysis of transgenic mice overexpressing Nell-1. Nell-1
Fibroblast growth factor receptor 2 (FGFR2) signaling is critical for proper craniofacial development. A gain-of-function mutation in the 2c splice variant of the receptor's gene is associated with Crouzon syndrome, which is characterized by craniosynostosis, the premature fusion of one or more of
Background: Apert syndrome is an autosomal, dominant inherited disorder characterized by craniosynostosis and syndactyly caused by gain-of-function mutations in the fibroblast growth factor receptor 2 (FGFR2) gene. Wnt/β-catenin signaling
Generalized arterial calcification (AC) of infancy (GACI) is an autosomal recessive disorder that features hydroxyapatite deposition within arterial elastic fibers. Untreated, approximately 85% of GACI patients die by 6 months of age from cardiac ischemia and congestive heart failure. The
BACKGROUND
The premature fusion of metopic sutures results in the clinical phenotype of trigonocephaly. An association of this characteristic with the monosomy 9p syndrome is well established and the receptor-type protein tyrosine phosphatase gene (PTPRD), located in the 9p24.1p23 region and