Search results for "Neuroblast"
showing 10 items of 348 documents
L'ESPLORAZIONE DEI LINFONODI REGIONALI NEL NEUROBLASTOMA LOCALIZZATO: Compliance alle Direttive Chirurgiche nello Studio Nazionale NB 85
1993
Accurate staging of patients with Neuroblastoma is essential for prognosis and for determining the most appropriate treatment. The neoplastic involvement of regional lymph-nodes (l.n.) is an important prognostic feature; the surgical exploration of these L.n. is mandatory for localized neuroblastoma (NBL) (stage I and II) in wich surgery represent the main treatment. The Authors have carried out a retrospective analysis of the cases registered in Italy between 1985 and 1989
RESECTION OF PRIMARY TUMOUR (PT) IN STAGE IVs NEUROBLASTOMA (NB)
1993
The Authors report 90 cases of Children with stage IVs Neuroblastoma diagnosed in 21 Italian Istitutions. The role of surgery is examinated.
ASPORTAZIONE DEL TUMORE PRIMITIVO NEL NEUROBLASTOMA STADIO IVs. E' UTILE NEL DECORSO CLINICO?
1993
Lo studio si propone di valutare il ruolo dell'asportazione del tumore primitivo (TP) nei bambini in età inferiore all'anno con neuroblastoma stadio IVs
TRATTAMENTO CHIRURGICO DEL NEUROBLASTOMA IV-s
1994
Nella casistica del Gruppo Cooperativo Italiano per il Neuroblastoma sono racolti dal 1976 al 1992 91 casi di NBstadio IV-s. Viene analizzata l'influenza della chirurgia del tumore primitivo sull'outcome di questi pazienti.
NEUROBLASTOMA INOPERABILE (NB). Esperienza deel Gruppo Cooperativo Italiano Neuroblastoma (GCNB)
1989
Gli Autori riportano la casistica del Gruppo Coperativo Italiano Neuroblastoma ed evidenziano le forme non operabili
CONGENITAL NEUROBLASTOMA: A RARE CASE OF PLURIVISCERAL METASTATIC DISSEMINATION
2021
Neuroblastoma is one of the most common neonatal tumors. It involves children in early infancy and originates from neural crest cells of the adrenal gland medulla or sympathetic glia. We report an unusual case of congenital poorly differentiated neuroblastoma with multiple metastases in the brain and cerebellum. The biophysical profile showed a prominent polyhydramnios at 25.3 weeks of gestation; meantime, the mother was diagnosed with gestational diabetes. The mass was detected during the third ultrasonographic examination at 31.4 weeks of gestation. The fetus lived only one day after birth and the postmortem examinations were performed subsequently. An autopsy was performed both to unders…
Neural cell pattern formation on glass and oxidized silicon surfaces modified with poly(N-isopropylacrylamide)
1996
Control over the adsorption of proteins and over the adsorption and spatial orientation of mammalian cells onto surfaces has been achieved by modification of glass and other silicon oxide substrates with poly(N-isopropylacrylamide) (PNIPAM). The functionalization of the substrates was achieved either by a polymer-analogous reaction of aminosilanes with reactive N-(isopropylacrylamide) (NIPAM)-copolymers and by copolymerization of NIPAM with surface-bound methacrylsilane. The obtained coatings were characterized by FT-1R, ellipsometry, and surface plasmon resonance measurements. The adsorption of two proteins-fibrinogen and ribonuclease A-on these surfaces was studied in situ by real time su…
Intra-Tumour Genetic Heterogeneity and Prognosis in High-Risk Neuroblastoma
2021
Simple Summary Neuroblastoma (NB) is the most common extra-cranial solid paediatric cancer and is responsible for 15% of childhood cancer deaths. Patients with NB are characterized by presenting a very heterogeneous clinic (inter-tumoural heterogeneity) and also both spatial and temporal intra-tumour heterogeneity (ITH) reflected in their genetic aberrations, which may be the consequence of the coexistence of different microenvironments within the tumour. Applying pangenomic techniques to detect genomic aberrations in different biopsies (solid and liquid) of high risk NB (HR-NB) we have detected spatial ITH in a surprisingly high percentage (almost 40%) of the studied cohort. Moreover, a po…
Lead-time and overdiagnosis estimation in neuroblastoma screening.
2003
In Germany, neuroblastoma is the most frequent extracranial solid childhood tumour. Its properties made it seem an ideal candidate for screening. A German trial assessed the effect of screening at one year of age from 1995-2001 in a nationwide project. We present here the methods developed for the estimation of lead-time and overdiagnosis in this project. Follow up on 1.5 million screened children and 2.1 million control children is currently available until June 2002. Ascertainment of control cohort cases and false negative cases is complete up to this date. A method for determining an empirical lead-time distribution and overdiagnosis estimate from comparing the age specific incidences in…
Effects of Hypericum Extract on the Expression of Serotonin Receptors
1994
The influence of hypericum extract LI 160 on the expression of serotonin receptors was investigated using a neuroblastoma cell line to establish a model for the regulation of neurotransmitters by immunologically active compounds such as cytokines. The cells were incubated with hypericum extract LI 160 in kinetic form for 2, 4, 6, 8, and 10 hours, then washed. The serotonin receptor expression analysis was compared to that of a placebo control solution. The neuroblastoma cells showed a clearly reduced expression of the serotonin receptors under treatment with hypericum extract. First stimulation experiments with interleukin-1 (IL-1) and hypericum extract suggest that a further reduction of …