Pablo Hernáiz Driever

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Cytotoxic drug treatment of neuroblastoma often leads to the development of drug resistance and may be associated with increased malignancy. To study the effects of long-term cytotoxic treatment on malignant properties of tumor cells, we established 2 neuroblastoma cell sublines resistant to vincristine (VCR) and doxorubicin (DOX). Both established cell(More)
PURPOSE The purpose of this study was to determine pediatric low-grade glioma survivors' quality of life and late morbidity including motor, sensory, and cognitive deficits. METHODS We surveyed 49 survivors and their parents (KINDL questionnaire). RESULTS Despite tumor and treatment-associated morbidity, survivors (25 boys and 24 girls, median age at(More)
Development of fine motor functions, especially drawing and handwriting, are crucial for performance in school, autonomy in everyday life and the general human development. A variety of neurological and psychiatric conditions in childhood and adolescence stunt the normal development of fine motor skills. We sought to define the normal development of the(More)
PURPOSE Patients with medulloblastoma are exposed to ototoxic treatments including radiation therapy and platinum chemotherapy. The favorable toxicity profile of carboplatin led us to substitute this chemotherapeutic agent for cisplatin in the HIT-1991, HIT-MED-1999, and HIT-2000 chemotherapy protocols. We retrospectively investigated its consequences in(More)
BACKGROUND Disease and therapy cause brain damage and subsequent functional loss in pediatric patients with posterior fossa tumors. Treatment-related toxicity factors are resection in patients with pilocytic astrocytoma (PA) and, additionally, cranio-spinal irradiation together with chemotherapy in patients with medulloblastoma (MB). We tested whether(More)
BACKGROUND AND AIMS Besides motor function the cerebellum subserves frontal lobe functions. Thus, we investigated executive functions in pediatric posterior fossa tumor survivors. METHODS We tested information processing, aspects of attention, planning and intelligence in 42 pediatric posterior fossa tumor survivors (mean age 14.63 yrs, SD 5.03).(More)
Valproic acid (VPA) has been considered as a possible treatment agent for malignant gliomas. In order to characterise the possibilities of VPA, we investigated the effects on cell migration and proliferation. Human cell lines T98G, A172, 85HG66 and 86HG39 were treated with VPA or left untreated, afterwards Boyden chamber assay was used for measuring(More)
Pediatric neurofibromatosis type 1 (NF-1) patients are prone to developing low-grade glioma (LGG). The HIT-LGG study 1996 aimed to observe the natural history of pediatric LGG and to postpone irradiation in younger children by using carboplatinum and vincristine in case non-surgical treatment was required. A total of 109 of 1,044 (10.4%) protocol patients(More)
OBJECTIVE Fronto-cerebellar association fibers (FCF) are involved in neurocognitive regulatory circuitry. This may also be relevant for cerebellar mutism syndrome (CMS) as a complication following posterior fossa tumor removal in children. In the present study, we investigated FCF by diffusion tensor imaging in affected children and controls. METHODS(More)
Aphidicolin is a tetracyclic diterpene antibiotic which kills human neuroblastoma cells (NB) in vitro while it has no significant effect on the viability of different human cell types including normal embryonal cells. In the present study, we tested whether aphidicolin encapsulated in liposomes kills NB cells with the efficacy superior to that of(More)