A Combined Approach to the Treatment of Adults with Osteogenesis Imperfecta by
Jay R Shapiro in Orthopedics and Sports
Medicine Open Access Journal (OSMOAJ) in Lupine Publishers.
Abstract
Osteogenesis Imperfecta (OI) is an inherited disorder of bone
characterized by bone fragility and increased fracture risk affecting
approximately 25,000 children and adults in the.com [1]. OI is caused by
different gene mutations involving the synthesis of type I collagen alpha
chains. Recently, mutations affecting post translational processing of type I
collagen as well as several non-collagenous proteins (SP7. Osterix) involved in
the Wnt signalling pathway have been recognized. To date, 19 genes are
implicated in osteogenesis imperfecta phenotypes [2]. In individuals with OI
fractures occur throughout the lifetime, more frequently at the extremes of
age. Fractures in OI may first be recognized in ultrasound studies during
pregnancy but fracture risk while increased in childhood, tends to decrease
following puberty only to increase around age 50 in both women and men. Compared
to adult osteoporosis, there have been no systematic studies evaluating optimal
daily intake of calcium or vitamin D on BMD or fracture incidence in adults.
Current use is highly variable in adults who: a) either do not regularly take
supplements or, b) take calcium and vitamin D without, measurement of serum
25(OH)D levels or urinary calcium excretion. Both hypercalcuria and renal
stones occur in adults with OI although the incidence is not reported.
Furthermore there is little documentation of vitamin D levels in adults with
OI.

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