Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2008-10-1
pubmed:abstractText
Osteoporosis-pseudoglioma (OPPG) is a rare syndrome characterized by severe osteoporosis and ocular defects caused by homozygotic inactivation mutations in the LRP5 gene. Bisphosphonate has been demonstrated to improve bone mineral density (BMD) in children with OPPG. We present here a 3 years follow-up of two brothers with OPPG carrying a novel mutation in the LRP5 gene, who were treated with intravenous pamidronate. PATIENT REPORT: We looked for a mutation in the LRP5 gene in two brothers (12 and 4 years old) with clinical features of OPPG (blindness, low BMD and fragility fractures) and in their consanguineous parents to confirm the diagnosis of OPPG. The patients were treated with bisphosphonate for 3 years. They received 1 mg/kg/day of pamidronate for 2 consecutive days, every 3 months during the first year, and every 4 months in subsequent years. Calcium, phosphorus, total alkaline phosphatase, parathyroid hormone, hepatic transaminases, creatinine and hemogram tests were performed before each infusion. Bone densitometry was performed at baseline and at the end of the follow-up. RESULTS AND CONCLUSION: The affected brothers carry a missense mutation in the third codon of exon 8 (AAT-->ATT) that led to the exchange of an asparagine for an isoleucine (N531I). Both parents were found to be heterozygous for this mutation. The intravenous pamidronate therapy was safe for up to 3 years of use. Moreover, increased BMD and decreased fracture rate were observed in our patients with OPPG.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0334-018X
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
811-8
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:18825883-Antineoplastic Agents, pubmed-meshheading:18825883-Blindness, pubmed-meshheading:18825883-Bone Density, pubmed-meshheading:18825883-Bone Density Conservation Agents, pubmed-meshheading:18825883-Child, pubmed-meshheading:18825883-Child, Preschool, pubmed-meshheading:18825883-Consanguinity, pubmed-meshheading:18825883-Diphosphonates, pubmed-meshheading:18825883-Follow-Up Studies, pubmed-meshheading:18825883-Fractures, Bone, pubmed-meshheading:18825883-Humans, pubmed-meshheading:18825883-LDL-Receptor Related Proteins, pubmed-meshheading:18825883-Low Density Lipoprotein Receptor-Related Protein-5, pubmed-meshheading:18825883-Male, pubmed-meshheading:18825883-Mutation, pubmed-meshheading:18825883-Osteoporosis, pubmed-meshheading:18825883-Pedigree, pubmed-meshheading:18825883-Siblings, pubmed-meshheading:18825883-Syndrome
pubmed:year
2008
pubmed:articleTitle
Three years follow-up of pamidronate therapy in two brothers with osteoporosis-pseudoglioma syndrome (OPPG) carrying an LRP5 mutation.
pubmed:affiliation
Division of Endocrinology, Federal University of São Paulo, Brazil. bete-endo@pesquisa.epm.br
pubmed:publicationType
Journal Article, Case Reports