Sökning: "neuroectodermal"

Visar resultat 6 - 10 av 15 avhandlingar innehållade ordet neuroectodermal.

  1. 6. Fine needle aspiration cytology in diagnosis and management of childhood small round cell tumours

    Författare :Björn Fröstad; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :child; adolescence; cytology; fine-needle aspiration; lymphoma; rhabdomyosarcoma; neuroblastoma; ganglioneuroma; Ewing s sarcoma; primitive neuroectodermal tumour; fluorescent in situ hybridisation FISH ; diagnosis; prognosis;

    Sammanfattning : Fine needle aspiration (FNA) cytology is accepted for diagnosing malignant tumours in adults. However, it has been slow in gaining acceptance among paediatricians and has only been used at some centres in the routine diagnosis of childhood tumours. LÄS MER

  3. 7. Prenatal Ultrasound and X-ray - Potentially Adverse Effects on the CNS

    Författare :Karin Glimskär Stålberg; Helle Kieler; Ove Axelsson; Bengt Haglund; Eleni Petridou; Uppsala universitet; []
    Nyckelord :Obstetrics and gynaecology; ultrasound; X-ray; fetus; risk; childhood cancer; schizophrenia; Obstetrik och kvinnosjukdomar;

    Sammanfattning : The aim with this thesis was to assess the impact of prenatal ultrasound exposure on psychotic illness, childhood brain tumors (CBT) and school achievement, and to evaluate prenatal X-ray exposure and the risk of CBT.In a cohort study, children born in Malmö 1973-1978, where prenatal ultrasound was used routinely, were considered exposed (n=13, 212) and children born at hospitals with no use of ultrasound, were considered unexposed (n=357,733). LÄS MER

  4. 8. Brain tumors in children - National population-based studies on classification, diagnostics and long-term follow-up

    Författare :Elizabeth Schepke; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatric CNS tumors; population-based; DNA methylation; profiling; CNS-PNET; re-evaluation; incidence rate; long-term outcome; classification; Pediatric CNS tumors; Population-based; DNA methylation; Profiling; CNS-PNET; Re-evaluation; Incidence rate; Long-term outcome; Classification;

    Sammanfattning : Although the prognosis for pediatric tumors of the central nervous system (CNS) has improved over time it is urgent to reduce mortality and improve long-term quality of life for survivors. With this aim, the first step is to identify the correct diagnosis in order to choose the right therapy and avoid unnecessary treatment. LÄS MER

  5. 9. Genetic and Epigenetic Variation in the Human Genome : Analysis of Phenotypically Normal Individuals and Patients Affected with Brain Tumors

    Författare :Cecilia De Bustos; Jan P. Dumanski; Joseph F. Costello; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular genetics; genetic variation; epigenetics; brain tumor; array-CGH; glioblastoma; ependymoma; microarray; methylation; Genetik; Genetics; Genetik;

    Sammanfattning : Genetic and epigenetic variation is a key determinant of human diversity and has an impact on disease predisposition. Single nucleotide polymorphisms (SNPs) and copy number polymorphisms (CNPs) are the main forms of genetic variation. The challenge is to distinguish normal variations from disease-associated changes. LÄS MER

  7. 10. Dissecting gene expression regulation in mouse embryonic stems

    Författare :Sandhya Malla; Francesca Aguilo; Filipe Pereira; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; molekylärbiologi; Molecular Biology;

    Sammanfattning : Every cell within an organism is derived from a single fertilized egg that undergoes cellular differentiation and development to generate mature specialized cells. Mouse embryonic stem cells (ESCs) derived from the inner cell mass (ICM) of the pre-implantation blastocyst have proven to be a model to study gene expression during differentiation and development. LÄS MER