Insulin-like growth factor II receptor (IGF2R) is a multifunctional cell surface receptor implicated in tumour suppression. Its growth inhibitory activity has been associated with an ability to bind IGF-II. IGF2R contains 15 homologous extracellular domains, with domain 11 primarily responsible for IGF-II binding. We report a 1.4 A Ê resolution crystal structure of domain 11, solved using the anomalous scattering signal of sulfur. The structure consists of two crossed b-sheets forming a¯attened b-barrel. Structural analysis identi®es the putative IGF-II binding site at one end of the b-barrel whilst crystal lattice contacts suggest a model for the full-length IGF2R extracellular region. The structure factors and coordinates of IGF2R domain 11 have been deposited in the Protein Data Bank (accession codes 1GP0 and 1GP3).
Globally, mental disorders are the leading cause of disability in children and adolescents. Previous research has demonstrated that supportive relationships are a key protective factor against poor mental health in children, particularly amongst those who have experienced adversity. However, fewer studies have examined the relative impact of different types of supportive relationships. The current study examined the association between level of family adult support, school adult support, and school peer support and mental wellbeing in a sample of children (age 8–15 years, N = 2,074) from schools in the UK. All three sources of support were independently associated with mental wellbeing. Analyses demonstrated a graded relationship between the number of sources of support and the odds of low mental wellbeing (LMWB), reflecting a cumulative protective effect. While all three sources of support were best, it was not vital, and analyses demonstrated a protective effect of school sources of support on LMWB amongst children with low family support. Peer support was found to be particularly important, with prevalence of LMWB similar amongst children who had high peer support (but low family and school adult support), and those who had high family and school adult support, (but low peer support), indicating that high peer support has an equivalent impact of two other protective factors. Findings from the study highlight the crucial context schools provide in fostering positive peer relationships and supportive teacher–student relationships to promote mental health and resilience for all children, including both those with and without supportive home environments.
There continues to be a gap in prevention outcomes achieved in research trials vs. “real world” practice. This article summarizes interim findings from a randomized trial testing Assets-Getting To Outcomes (AGTO), a two-year intervention to build prevention practitioners’ capacity to implement positive youth development-oriented prevention practices in 12 prevention coalitions in Maine. A survey of coalition members was used to assess change on individual practitioners’ prevention capacity between Baseline and one year later. Structured interviews with 32 program leaders (16 intervention, 16 control) were used to assess changes in prevention practices during the same time period. Change in prevention capacity over time between intervention and control did not differ, however in secondary analyses of only those assigned to the AGTO condition, AGTO users had evidenced greater improvement in their self-efficacy to conduct Assets-based programming and the frequency with which they engaged in AGTO behaviors. Non-users’ self-efficacy of AGTO declined. Interview ratings showed improvement in several key areas of performance among intervention programs. Improvement was associated with the number of technical assistance hours received. These results suggest that, after one year, AGTO is beginning to improve the capacity of community practitioners who make use of it.
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