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OSTEOGENESIS IMPERFECTA, TYPE I (OI1)

OSTEOGENESIS IMPERFECTA, TYPE I (OI1)
OSTEOGENESIS IMPERFECTA WITH BLUE SCLERAE
166200
OMIM = Online Mendelian Inheritance of Men
666
collagen alpha-1(I) chain; collagen alpha-1(I) chain
17q21.31
Q78.0
very rare
autosomal dominant
autosomal recessive
mutation in the COL1A1 or COL1A2 gene
Laboratory findings
Symptoms   bowing of the legs
   hearing defect, deafness
   heart involvement
   mitral valve prolapse
   osteopenia
   otosclerosis
   sclerae, blue or bluish
   skeletal changes, skeletal abnormalities
   skin defects
    bone fractures
    joint hypermobilty, dislocations, laxity
    onset, adolescent
    onset, childhood
    onset, infancy
    onset, neonatal