Assessments carried out by a child abuse and neglect team in an Amsterdam teaching hospital led to interventions in most of the reported cases.

AIM: This study described cases of child abuse and neglect (CAN) that were reported to the multiagency CAN team at the Emma Children's Hospital in Amsterdam and the resulting interventions. METHODS: We carried out a retrospective review of all cases that were reported to the CAN team from 1 January 2010 to 31 December 2012. RESULTS: There were 27 prenatal cases, 92 referrals based on parental characteristics and 523 children. Overall, 1.2% of the children visiting the emergency department of our hospital, attending the outpatients department or being admitted were reported to the team. More than half of the referrals (55.1%) were confirmed as CAN. The most common diagnoses were as follows: witnessing intimate partner violence, physical neglect and emotional abuse. If CAN was confirmed an intervention was offered in 98.3% of cases. If a CAN diagnosis was undetermined or rejected, the figures were still 83.5% and 64.2%, respectively. CONCLUSION: Our results showed that CAN affected more than one in every 100 children visiting our hospital, and the expertise of our hospital-based CAN Team led to an intervention in the majority of the reported cases. The broad scope of problems that were encountered underlined the importance of a multidisciplinary CAN team.

NADP+ -dependent IDH1 R132 mutation and its relevance for glioma patient survival.

The isocitrate dehydrogenase 1 (IDH1) mutation occurs in high frequency in glioma and secondary glioblastoma (GBM). Mutated IDH1 produces the oncometabolite 2-hydroxyglutarate rather than α-ketoglutarate or isocitrate. The oncometabolite is considered to be the major cause of the association between the IDH1 mutation and gliomagenesis. On the other hand, the IDH1 mutation in GBM is associated with prolonged patient survival. This association is not well understood yet but IDH1 involvement in epigenetic silencing of O-6-methylguanine-DNA methyltransferase (MGMT), a DNA repair enzyme is considered to be an important mechanism. However, it was shown recently that the IDH1 mutation and MGMT silencing are independent prognostic factors. Here, we hypothesize that the IDH1 mutation reduces the capacity to produce NADPH and thus reduces the capacity to scavenge reactive oxygen species that are generated during irradiation and chemotherapy. IDH1 activity is responsible for two-thirds of the NADPH production capacity in normal brain, whereas the IDH1 mutation reduces this capacity by almost 40%. Therefore, we hypothesize that the reduced NADPH production capacity due to the IDH1 mutation renders GBM cells more vulnerable to irradiation and chemotherapy thus prolonging survival of the patients.