Donald W. Coulter

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EBV(-) posttransplantation lymphoproliferative disorders (PTLDs) are rare compared with EBV(+) PTLDs, occur later after transplantation, and have a poor response to treatment. Few studies have reported EBV(-) PTLD in pediatric solid-organ transplantation recipients. We describe 5 cases of EBV(-) PTLD in recipients of combined liver and small bowel(More)
Duplications of the long arm of chromosome 18 have been previously reported in patients with phenotypic findings similar to full trisomy 18. Trisomy 18 increases the risk for Wilms tumor and it is currently recommended that these patients undergo abdominal ultrasonography screening every 6 months. We report on nephroblastomatosis in a 27-month-old male with(More)
Amyloid precursor protein (APP) and its family members amyloid precursor-like protein 1 (APLP1) and amyloid precursor-like protein 2 (APLP2) are type 1 transmembrane glycoproteins that are highly conserved across species. The transcriptional regulation of APP and APLP2 is similar but not identical, and the cleavage of both proteins is regulated by(More)
9563 Background: Temsirolimus (Tem), an inhibitor of the mammaliantarget of rapamycin (mTOR), and valproic acid (VPA), an inhibitor of histone deacetylase (HDAC), are both inducers of autophagy. Each has shown in vitro and in vivo antitumor activity against a range of cancers. Prior pediatric studies have established a maximumtolerated dose (MTD) for Tem of(More)
Medulloblastoma (MB) is the most common childhood brain tumor, which occurs in the posterior fossa. MB tumors are highly heterogeneous and have diverse genetic make-ups, with differential microRNA (miRNA) expression profiles and variable prognoses. MB can be classified into four subgroups, each with different origins, pathogenesis, and potential therapeutic(More)
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