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We report the first case of vertebral aspergillosis in a child with a primary defect in monocyte killing, an extremely rare immunodeficiency The diagnosis of defective monocyte killing was made by an in vitro assay that showed normal killing of Staphylococcus aureus by the patient's neutrophils but impaired killing by his monocytes. Importantly, the(More)
BACKGROUND Cystic fibrosis (CF) is the most common autosomal recessive disease in Caucasians; it is however, considered to be rare in the Arab populations. Reports of the cystic fibrosis transmembrane regulator (CFTR) mutations from Arabs, especially from the Lebanese population, are limited. METHODS Twenty-two unrelated Lebanese families, with at least(More)
The pulmonary complications of sickle cell disease are a major cause of morbidity and mortality in affected patients. The acute chest syndrome (ACS) is a leading cause of death in patients with sickle cell disease and has a multifactorial etiology. Hydroxyurea (HU), stem cell transplantation (SCT) and chronic transfusions are known to prevent the recurrence(More)
Odonto-onycho-dermal dysplasia is a rare autosomal recessive syndrome in which the presenting phenotype is dry hair, severe hypodontia, smooth tongue with marked reduction of fungiform and filiform papillae, onychodysplasia, keratoderma and hyperhidrosis of palms and soles, and hyperkeratosis of the skin. We studied three consanguineous Lebanese Muslim(More)
OBJECTIVE To assess the effect of chronic hypoxia on brain neuronal apoptosis, an animal model mimicking cyanotic heart disease was utilized. METHODS Rats were placed in an hypoxic environment at birth and oxygen levels were maintained at 10% in an air-tight Plexiglass chamber. Controls remained in room air. Animals were sacrificed and the brains were(More)
BACKGROUND The aim of the study is to examine the effect of limited and prolonged hyperoxia on neonatal rat lung. This is done by examining the morphologic changes of apoptosis, the expression of ceramide, an important mediator of apoptosis, the expression of inflammatory mediators represented by IL-1beta and the expression of 2 proto-oncogenes that appear(More)
To asses the role of bronchoscopy and its yield in children with respiratory symptoms and no typical history of radiological evidence of foreign body aspiration (FBA), we reviewed the records of all patients who underwent bronchoscopy at our institution between 1985 and 1995 and had no history of choking, witnessed FBA or clear radiological evidence of FBA(More)