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51 result(s) for "Annett, Robert D."
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Self-reported and parent proxy reported functional impairment among pediatric cancer survivors and controls
Background A unique and limiting component in the research on functional impairment among children has been the exclusive use of parent proxy reports about child functioning; and there is limited information regarding the impact of pediatric cancer treatment on children’s day-to-day functioning and how this is related to neurocognitive functioning. The objective of the current study was to examine a novel measure of self-reported functional impairment, and explore the relationship between self-reported and parent-reported child functional impairment in pediatric cancer survivors compared to controls. Methods A cross-sectional cohort of survivors ( n  = 26) and controls ( n  = 53) were recruited. Survivors were off treatment an average of 6.35 years ( SD  = 5.38; range 1–15 years) and demonstrated an average “medium” Central Nervous System treatment intensity score. Participants completed measures of functional impairment (FI), intellectual assessment (RIST) and executive functions (NIH Examiner), while parents reported on children’s functional impairment. Results Survivors were similar to controls in functional impairment. Regardless of group membership, self-reported FI was higher than parent-reported FI, although they were correlated and parent report of FI significantly predicted self-reported FI. Across groups, increased impairment was associated with four of seven Examiner scores. Conclusions Research regarding self-reported functional impairment of cancer survivors and its association with parent-reported functional impairment and neurocognitive deficits has been limited. Our results suggest that self-reported FI appears to be a reasonable and viable outcome measure that corresponds with and adds incremental validity to parent reported FI. While low treatment intensity may confer relative sparing of functional impairment among survivors, children report higher FI levels than parents, suggesting that FI can be of clinical utility. In conclusion, pediatric cancer survivors should be screened for self-reported functional difficulties.
Integrating de novo and inherited variants in 42,607 autism cases identifies mutations in new moderate-risk genes
To capture the full spectrum of genetic risk for autism, we performed a two-stage analysis of rare de novo and inherited coding variants in 42,607 autism cases, including 35,130 new cases recruited online by SPARK. We identified 60 genes with exome-wide significance ( P  < 2.5 × 10 −6 ), including five new risk genes ( NAV3 , ITSN1 , MARK2 , SCAF1 and HNRNPUL2 ). The association of NAV3 with autism risk is primarily driven by rare inherited loss-of-function (LoF) variants, with an estimated relative risk of 4, consistent with moderate effect. Autistic individuals with LoF variants in the four moderate-risk genes ( NAV3 , ITSN1 , SCAF1 and HNRNPUL2 ; n  = 95) have less cognitive impairment than 129 autistic individuals with LoF variants in highly penetrant genes ( CHD8, SCN2A, ADNP, FOXP1 and SHANK3 ) (59% vs 88%, P  = 1.9 × 10 −6 ). Power calculations suggest that much larger numbers of autism cases are needed to identify additional moderate-risk genes. An integrated analysis of de novo and inherited coding variants in 42,607 individuals with autism spectrum disorder identifies 60 risk genes of which five have not previously been associated with neurodevelopmental disorders.
Pediatric Cancer Survivorship: Impact Upon Hair Cortisol Concentration and Family Functioning
A clearer understanding of the association between a biomarker of long-term stress reactivity and family functioning among pediatric cancer survivors may guide both survivorship research and clinical practice. The current study examined the relationship between a long-term measure of hypothalamic–pituitary–adrenal (HPA) activity (cortisol concentration; CORT HAIR ) and parent-reported family functioning (Family Environment Scale; FES) in a cross-sectional sample of survivors ( n  = 26) and controls ( n  = 53). Child CORT HAIR was not different in survivors and controls, though treatment severity was significantly related to child survivor CORT HAIR . Child CORT HAIR and parent CORT HAIR were positively correlated. Cancer survivor parents reported greater FES Organization. Child CORT HAIR was inversely associated with FES Independence, while parent CORT HAIR was inversely correlated with FES Organization. Parent CORT HAIR and FES Independence were significant and unique predictors of child CORT HAIR . Our results provide preliminary evidence for a relationship between a stress biomarker, child CORT HAIR , and family functioning among pediatric cancer survivors and controls.
Exome sequencing of 457 autism families recruited online provides evidence for autism risk genes
Autism spectrum disorder (ASD) is a genetically heterogeneous condition, caused by a combination of rare de novo and inherited variants as well as common variants in at least several hundred genes. However, significantly larger sample sizes are needed to identify the complete set of genetic risk factors. We conducted a pilot study for SPARK (SPARKForAutism.org) of 457 families with ASD, all consented online. Whole exome sequencing (WES) and genotyping data were generated for each family using DNA from saliva. We identified variants in genes and loci that are clinically recognized causes or significant contributors to ASD in 10.4% of families without previous genetic findings. In addition, we identified variants that are possibly associated with ASD in an additional 3.4% of families. A meta-analysis using the TADA framework at a false discovery rate (FDR) of 0.1 provides statistical support for 26 ASD risk genes. While most of these genes are already known ASD risk genes, BRSK2 has the strongest statistical support and reaches genome-wide significance as a risk gene for ASD (p-value = 2.3e−06). Future studies leveraging the thousands of individuals with ASD who have enrolled in SPARK are likely to further clarify the genetic risk factors associated with ASD as well as allow accelerate ASD research that incorporates genetic etiology.
Predicting Young Adult Tobacco, Drug and Alcohol Use Among Participants in the CAMP Trial
The development of substance abuse in youth with asthma have seldom been examined with longitudinal research. The prospective and well-characterized CAMP cohort provides outcome data on youth with asthma over 13 years. This manuscript seeks to determine the contributions of asthma features and child behavioral/emotional functioning to subsequent tobacco, alcohol, and drug use in early adulthood. Childhood smoking exposures as well as parent report and youth report of substance use were prospectively assessed concurrently with assessments of asthma symptoms, study medication, and lung development. Logistic regression models evaluated predictors of adolescent and young adult tobacco, alcohol, and drug use. Use of tobacco products was reported by 33% of youth with mild/moderate asthma. Tobacco use was significantly associated with self-reported externalizing behaviors. Early life passive smoke exposure, especially in utero exposure, makes a significant contribution to tobacco use (OR1.58). Greater risk for tobacco use is conveyed by self-reported externalizing behaviors, which are consistently robust predictors of any future use of tobacco products, alcohol and drugs. These findings provide evidence for health care providers to use routine behavioral screening in youth with asthma.
The Influence of Mediators on the Relationship Between Antenatal Opioid Agonist Exposure and the Severity of Neonatal Opioid Withdrawal Syndrome
Objectives(1) To evaluate the direct (un-mediated) and indirect (mediated) relationship between antenatal exposure to opioid agonist medication as treatment for opioid use disorder (MOUD) and the severity of neonatal opioid withdrawal syndrome (NOWS), and (2) to understand the degree to which mediating factors influence the direct relationship between MOUD exposure and NOWS severity.MethodsThis cross-sectional study includes data abstracted from the medical records of 1294 opioid-exposed infants (859 MOUD exposed and 435 non-MOUD exposed) born at or admitted to one of 30 US hospitals from July 1, 2016, to June 30, 2017. Regression models and mediation analyses were used to evaluate the relationship between MOUD exposure and NOWS severity (i.e., infant pharmacologic treatment and length of newborn hospital stay (LOS)) to identify potential mediators of this relationship in analyses adjusted for confounding factors.ResultsA direct (un-mediated) association was found between antenatal exposure to MOUD and both pharmacologic treatment for NOWS (aOR 2.34; 95%CI 1.74, 3.14) and an increase in LOS (1.73 days; 95%CI 0.49, 2.98). Delivery of adequate prenatal care and a reduction in polysubstance exposure were mediators of the relationship between MOUD and NOWS severity and as thus, were indirectly associated with a decrease in both pharmacologic treatment for NOWS and LOS.Conclusions for PracticeMOUD exposure is directly associated with NOWS severity. Prenatal care and polysubstance exposure are potential mediators in this relationship. These mediating factors may be targeted to reduce the severity of NOWS while maintaining the important benefits of MOUD during pregnancy.SignificanceWhat is already known on this subject? The use of MOUD during pregnancy improves fetal outcomes, while antenatal exposure to MOUD increases the risk of NOWS. The severity of NOWS is influenced by MOUD type, co-exposures, adequacy of prenatal care, and the infant’s gestational age.What this study adds? This study identifies factors that mediate the direct influence of antenatal MOUD exposure on the severity of NOWS and quantifies the degree to which this mediation influences outcomes in a large and geographically diverse population. Thus, providing clinicians with potential targets to improve care for this vulnerable population.
Risk of Concussion During Sports Versus Physical Education Among New Mexico Middle and High School Students
Objectives. To measure the risk of concussion among New Mexico middle and high school students during both sports and physical education. Methods. Athletic directors or athletic trainers in 147 schools were asked to report the number of concussions occurring during sports and physical education in the 2013 to 2014 school year. We calculated 1-year cumulative incidence rates. Results. Of the 147 schools, 99 responded (67%). During the school year, 598 students were removed from athletics because of a concussion, a 1-year cumulative incidence of 3.5 per 100. The concussion rate during sports was 3.0: 3.5 for boys and 2.4 for girls (relative risk [RR] = 1.5; 95% confidence interval [CI] = 1.2, 1.7). An additional 335 students experienced concussions during physical education. Concussion rates during physical education were 60% higher than during sports (RR = 1.6; 95% CI = 1.4, 1.8). Conclusions. In our data, the risk of concussion was higher in physical education than in sports. This suggests that concussions should be tracked for a wide range of youth athletic activities, not just for sports. Monitoring cumulative incidence, in addition to other measures, may allow comparisons across schools and regions. More prevention efforts are needed.
Predicting moderate improvement and decline in pediatric asthma quality of life over 24 months
Objective To determine factors associated with 24-month change in quality of life in children with asthma and their parents during the Childhood Asthma Management Program (CAMP). Methods Participants from 4 CAMP clinical centers were administered the Pediatrie Asthma Quality of Life questionnaire and protocol measures of asthma symptoms, lung function, and psychological measures. Results Multivariate logistic regression analyses determined predictors of moderate change in quality of life. Subclinical levels of depression predicted moderate improvement in child-reported quality of life. Level of depressed affect together with clinical asthma features predicted moderate decline. Improvement in parent quality of life was predicted by perception of illness burden, whereas family features and a child missing school predicted moderate decline. Conclusions This ancillary study provided an opportunity to examine the determinants of 24-month change in parent and child of quality of life within a subset of the CAMP participants. Moderate changes in quality of life occur in clinical studies and have both psychosocial correlates and illness characteristics.
Large-scale targeted sequencing identifies risk genes for neurodevelopmental disorders
Most genes associated with neurodevelopmental disorders (NDDs) were identified with an excess of de novo mutations (DNMs) but the significance in case–control mutation burden analysis is unestablished. Here, we sequence 63 genes in 16,294 NDD cases and an additional 62 genes in 6,211 NDD cases. By combining these with published data, we assess a total of 125 genes in over 16,000 NDD cases and compare the mutation burden to nonpsychiatric controls from ExAC. We identify 48 genes (25 newly reported) showing significant burden of ultra-rare (MAF < 0.01%) gene-disruptive mutations (FDR 5%), six of which reach family-wise error rate (FWER) significance ( p  < 1.25E−06). Among these 125 targeted genes, we also reevaluate DNM excess in 17,426 NDD trios with 6,499 new autism trios. We identify 90 genes enriched for DNMs (FDR 5%; e.g., GABRG2 and UIMC1 ); of which, 61 reach FWER significance ( p  < 3.64E−07; e.g., CASZ1 ). In addition to doubling the number of patients for many NDD risk genes, we present phenotype–genotype correlations for seven risk genes ( CTCF , HNRNPU , KCNQ3 , ZBTB18 , TCF12 , SPEN , and LEO1 ) based on this large-scale targeted sequencing effort. For many neurodevelopmental disorder (NDD) risk genes, the significance for mutational burden is unestablished. Here, the authors sequence 125 candidate NDD genes in over 16,000 NDD cases; case-control mutational burden analysis identifies 48 genes with a significant burden of severe ultra-rare mutations.