Laura Janzen

Learn More
Research has firmly established that the integrity of the medial temporal lobe (MTL) is critical for recognition memory. This ability is supported by recollection, which involves recovery of contextual details of a past stimulus encounter, and familiarity assessment, which leads to awareness of prior occurrence without such recovery. Dual-process models of(More)
BACKGROUND Central nervous system germ cell tumors (CNS GCT) are typically localized to midline structures of the brain, including the pineal and suprasellar/pituitary regions. Management of these tumors depends on underlying histology (germinoma or nongerminomatous germ cell tumor). Knowledge about neurocognitive outcome in these patients is limited.(More)
BACKGROUND Early malnutrition and/or micronutrient deficiencies can adversely affect physical, mental, and social aspects of child health. School feeding programs are designed to improve attendance, achievement, growth, and other health outcomes. OBJECTIVES The main objective was to determine the effectiveness of school feeding programs in improving(More)
PURPOSE To retrospectively review an institutional experience in managing atypical teratoid/rhabdoid tumors (AT/RT) of the Central Nervous System with high-dose chemotherapy in infants and children less than 4 years old. MATERIALS/METHODS Eight AT/RT patients were identified during the study period 2003 to 2008. Tumor location was supratentorial in 3(More)
This report describes hepatitis B vaccinations that resulted in transient hepatitis B surface antigen positivity in six adult hemodialysis patients. Initially, three patients were incidentally discovered to be hepatitis B surface antigen-positive temporally related to hepatitis B vaccination. Two other patients who displayed transient positivity were among(More)
Cure rates for childhood acute lymphoblastic leukemia (ALL) now exceed 80%. Consequently, there is a growing population of survivors of childhood ALL who are at risk for developing late sequelae of their cancer therapy. The risk of developing a late effect of therapy is particularly high in those survivors treated with cranial radiation or hematopoietic(More)
Children with Fetal Alcohol Syndrome (FAS) manifest a variety of central nervous system deficits which may include mental retardation, perceptual, linguistic and fine motor deficits, as well as behaviour problems. The neuropsychological performance of to preschool-aged children with FAS was compared to age, sex, and race-matched controls. Profile analysis(More)
The primary aim of the investigation was to assess the relationship between whole-body fat expressed as a percentage of body weight with whole-body bone mineral content relative to age and anthropometry. Sixty females between 10 and 19 years of age were recruited to this cross-sectional study, which included measurements of weight and height and whole-body(More)
 Objective. To determine whether enchondromas and chondrosarcomas can be differentiated on the basis of peritumoral MR signal abnormality. Design. STIR and T2-weighted MRI images were retrospectively assessed for the presence and extent of abnormal peritumoral marrow and soft-tissue signal. The cause of the peritumoral signal abnormality was determined by(More)
This review will describe the neurocognitive outcomes associated with pediatric acute lymphoblastic leukemia (ALL) and its treatment. The literature is reviewed with the aim of addressing methodological issues, treatment factors, risks and moderators, special populations, relationship to neuroimaging findings, and directions for future research. It is(More)