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1.
Proc Natl Acad Sci U S A ; 121(18): e2322751121, 2024 Apr 30.
Article in English | MEDLINE | ID: mdl-38652750

ABSTRACT

Organ-specific gene expression datasets that include hundreds to thousands of experiments allow the reconstruction of organ-level gene regulatory networks (GRNs). However, creating such datasets is greatly hampered by the requirements of extensive and tedious manual curation. Here, we trained a supervised classification model that can accurately classify the organ-of-origin for a plant transcriptome. This K-Nearest Neighbor-based multiclass classifier was used to create organ-specific gene expression datasets for the leaf, root, shoot, flower, and seed in Arabidopsis thaliana. A GRN inference approach was used to determine the: i. influential transcription factors (TFs) in each organ and, ii. most influential TFs for specific biological processes in that organ. These genome-wide, organ-delimited GRNs (OD-GRNs), recalled many known regulators of organ development and processes operating in those organs. Importantly, many previously unknown TF regulators were uncovered as potential regulators of these processes. As a proof-of-concept, we focused on experimentally validating the predicted TF regulators of lipid biosynthesis in seeds, an important food and biofuel trait. Of the top 20 predicted TFs, eight are known regulators of seed oil content, e.g., WRI1, LEC1, FUS3. Importantly, we validated our prediction of MybS2, TGA4, SPL12, AGL18, and DiV2 as regulators of seed lipid biosynthesis. We elucidated the molecular mechanism of MybS2 and show that it induces purple acid phosphatase family genes and lipid synthesis genes to enhance seed lipid content. This general approach has the potential to be extended to any species with sufficiently large gene expression datasets to find unique regulators of any trait-of-interest.


Subject(s)
Arabidopsis , Gene Expression Regulation, Plant , Gene Regulatory Networks , Transcription Factors , Arabidopsis/genetics , Arabidopsis/metabolism , Transcription Factors/metabolism , Transcription Factors/genetics , Arabidopsis Proteins/genetics , Arabidopsis Proteins/metabolism , Organ Specificity/genetics , Transcriptome/genetics , Seeds/genetics , Seeds/metabolism , Gene Expression Profiling/methods
2.
PLoS One ; 19(1): e0294123, 2024.
Article in English | MEDLINE | ID: mdl-38241340

ABSTRACT

The ability of soybean [Glycine max (L.) Merr.] to adapt to different latitudes is attributed to genetic variation in major E genes and quantitative trait loci (QTLs) determining flowering time (R1), maturity (R8), and reproductive length (RL). Fully revealing the genetic basis of R1, R8, and RL in soybeans is necessary to enhance genetic gains in soybean yield improvement. Here, we performed a genome-wide association analysis (GWA) with 31,689 single nucleotide polymorphisms (SNPs) to detect novel loci for R1, R8, and RL using a soybean panel of 329 accessions with the same genotype for three major E genes (e1-as/E2/E3). The studied accessions were grown in nine environments and observed for R1, R8 and RL in all environments. This study identified two stable peaks on Chr 4, simultaneously controlling R8 and RL. In addition, we identified a third peak on Chr 10 controlling R1. Association peaks overlap with previously reported QTLs for R1, R8, and RL. Considering the alternative alleles, significant SNPs caused RL to be two days shorter, R1 two days later and R8 two days earlier, respectively. We identified association peaks acting independently over R1 and R8, suggesting that trait-specific minor effect loci are also involved in controlling R1 and R8. From the 111 genes highly associated with the three peaks detected in this study, we selected six candidate genes as the most likely cause of R1, R8, and RL variation. High correspondence was observed between a modifying variant SNP at position 04:39294836 in GmFulb and an association peak on Chr 4. Further studies using map-based cloning and fine mapping are necessary to elucidate the role of the candidates we identified for soybean maturity and adaptation to different latitudes and to be effectively used in the marker-assisted breeding of cultivars with optimal yield-related traits.


Subject(s)
Genome-Wide Association Study , Glycine max , Chromosome Mapping , Glycine max/genetics , Linkage Disequilibrium , Plant Breeding , Phenotype , Polymorphism, Single Nucleotide
3.
J Exp Bot ; 74(17): 5153-5165, 2023 09 13.
Article in English | MEDLINE | ID: mdl-37551820

ABSTRACT

Height is a critical component of plant architecture, significantly affecting crop yield. The genetic basis of this trait in soybean remains unclear. In this study, we report the characterization of the Compact mutant of soybean, which has short internodes. The candidate gene was mapped to chromosome 17, and the interval containing the causative mutation was further delineated using biparental mapping. Whole-genome sequencing of the mutant revealed an 8.7 kb deletion in the promoter of the Glyma.17g145200 gene, which encodes a member of the class III gibberellin (GA) 2-oxidases. The mutation has a dominant effect, likely via increased expression of the GA 2-oxidase transcript observed in green tissue, as a result of the deletion in the promoter of Glyma.17g145200. We further demonstrate that levels of GA precursors are altered in the Compact mutant, supporting a role in GA metabolism, and that the mutant phenotype can be rescued with exogenous GA3. We also determined that overexpression of Glyma.17g145200 in Arabidopsis results in dwarfed plants. Thus, gain of promoter activity in the Compact mutant leads to a short internode phenotype in soybean through altered metabolism of gibberellin precursors. These results provide an example of how structural variation can control an important crop trait and a role for Glyma.17g145200 in soybean architecture, with potential implications for increasing crop yield.


Subject(s)
Gibberellins , Glycine max , Glycine max/genetics , Glycine max/metabolism , Gibberellins/metabolism , Mutation , Phenotype
4.
Front Psychol ; 14: 1171264, 2023.
Article in English | MEDLINE | ID: mdl-37546489

ABSTRACT

Objective: Given the frequent co-occurrence between alcohol use and sexual behavior among adolescents, alcohol interventions may play a role in helping prevent sexually transmitted infections (STIs) in this age group. Psychotherapy "common factors" are one potential active ingredient in intervention efficacy. Thus, the purpose of this study was to evaluate the influence of a critical common factor, adolescent: provider connectedness, on STI risk reduction at 3 months post-intervention. Methods: Community-based youth (N = 168) were randomized to two 60-min individual sessions of either motivational interviewing (MI) or brief adolescent mindfulness (BAM). Logistic regressions predicted post-intervention positive STI from adolescent: provider connectedness, intervention condition, and their interaction. Path analytic models tested post-intervention hazardous drinking as a mediator of the association between adolescent: provider connectedness and reduction in STI risk at 3-month follow-up. Results: Stronger adolescent: provider connectedness reduced risk of STI at 3 months post-intervention, with no differences by treatment condition. A mediational relationship between adolescent: provider connectedness and STI risk via hazardous drinking was not observed. Conclusion: Psychotherapeutic common factors, including adolescent: provider connectedness, may be important in mitigating adolescent health risk in behavioral interventions, above and beyond intervention condition and beyond the target behavior of the intervention.

5.
Health Psychol ; 42(12): 889-893, 2023 Dec.
Article in English | MEDLINE | ID: mdl-36442048

ABSTRACT

OBJECTIVE: Evidence suggests that caffeine use disproportionately impacts sleep functioning among youth with attention-deficit/hyperactivity disorder (ADHD). The present study aimed to examine the association of caffeine use with disrupted sleep, and to test moderating effects of ADHD, by leveraging differences within twin pairs to explore potential quasi-causal (i.e., within-pair) effects. METHOD: N = 765 complete same-sex twin pairs (mean age at baseline = 10.14 [SD = .5]; 49% girls; 73% white) from the ABCD study reported caffeine use and frequency of disrupted sleep; parents reported youth ADHD symptoms. Cotwin control analyses predicted disrupted sleep from caffeine use, ADHD, and their interaction at ages 10 and 12. RESULTS: Neither quasi-causal within-pair effects of caffeine use on disrupted sleep, nor a moderating role of ADHD were identified. Posthoc biometric models indicated that genetic and environmental influences on these phenotypes may change over time, such that genetic influences on disrupted sleep began to emerge more robustly around early adolescence. Additionally, caffeine use and disrupted sleep, but not ADHD, displayed overlapping genetic influences (12-13% of total phenotypic variance) at age 10. CONCLUSIONS: In a sample of preadolescent twin pairs from the ABCD Study, we did not observe evidence that caffeine use was quasi-causally associated with disrupted sleep at this early developmental stage. However, caffeine use and disrupted sleep emerged with shared etiologic influences. In sum, this study sets the stage for examining these dynamic patterns in future examinations of this critical and timely ABCD study sample, as genetic and environmental influences on behavior are known to change throughout development. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Subject(s)
Attention Deficit Disorder with Hyperactivity , Female , Humans , Adolescent , Child , Male , Attention Deficit Disorder with Hyperactivity/drug therapy , Attention Deficit Disorder with Hyperactivity/epidemiology , Attention Deficit Disorder with Hyperactivity/diagnosis , Caffeine/adverse effects
6.
Addict Behav ; 136: 107499, 2023 01.
Article in English | MEDLINE | ID: mdl-36166981

ABSTRACT

PURPOSE: Behavioral interventions to reduce hazardous drinking are only moderately successful in promoting sustained behavior change and post-intervention effect sizes among adolescents remain modest. This study aimed to explore a relevant therapeutic active ingredient, adolescent:provider alliance, as a moderator of short-term (3 month) adolescent intervention outcomes within the course of a larger parent randomized control trial (RCT). METHODS: Participants were community-based youth engaged in hazardous drinking (N = 168) who were randomized to 2 sessions of either motivational interviewing (MI) or mindfulness (brief adolescent mindfulness; BAM). Youth reported pre-intervention hazardous drinking at baseline and rated therapeutic alliance (a metric of adolescent:provider "connectedness" that helps facilitate working relationships during interventions) immediately post-intervention; they reported hazardous drinking again at 3 months post-intervention. Negative binomial regressions predicted post-intervention hazardous drinking score from adolescent:provider alliance, intervention condition, and their interaction. RESULTS: Mean hazardous drinking was reduced by 34-40 % across both intervention conditions, with no significant between-condition differences. Stronger adolescent:provider alliance was associated with lower hazardous drinking scores at 3 months, but this effect was attenuated after controlling for baseline hazardous drinking. Contrary to predictions, adolescent:provider alliance did not appear to moderate the effect of intervention condition in this sample of young people engaged in hazardous drinking. CONCLUSIONS: Consistent with prior literature, baseline hazardous drinking was a robust predictor of treatment outcomes. At the same time, these results suggest that future work may benefit from continuing to examine and disaggregate the nature of adolescent:provider alliance across the spectrum of empirically supported brief interventions for adolescent hazardous drinking. CLINICAL TRIALS REGISTRATION NUMBER: ClinicalTrials.gov identifier: NCT03367858. Data Sharing Statement: Requests for deidentified individual participant data can be made to the first author.


Subject(s)
Motivational Interviewing , Adolescent , Behavior Therapy , Humans , Motivational Interviewing/methods , Treatment Outcome
7.
Plants (Basel) ; 11(21)2022 Nov 03.
Article in English | MEDLINE | ID: mdl-36365419

ABSTRACT

Mutagenesis remains an important tool in soybean biology. In classical plant mutation breeding, mutagenesis has been a trusted approach for decades, creating stable non-transgenic variation, and many mutations have been incorporated into germplasm for several crops, especially to introduce favorable seed composition traits. We performed a genetic screen for aberrant oil or protein composition of soybean seeds, and as a result isolated over 100 mutant lines for seed composition phenotypes, with particular interest in high protein or high oil phenotypes. These lines were followed for multiple seasons and generations to select the most stable traits for further characterization. Through backcrossing and outcrossing experiments, we determined that a subset of the lines showed recessive inheritance, while others showed a dominant inheritance pattern that suggests the involvement of multiple loci and genetic mechanisms. These lines can be used as a resource for future studies of the genetic control of seed protein and oil content in soybean.

8.
Lancet Child Adolesc Health ; 6(11): 820-828, 2022 11.
Article in English | MEDLINE | ID: mdl-36030794

ABSTRACT

There has been a global surge in adolescents' use of electronic nicotine delivery systems (vaping), cannabis (vaped and edible), and prescription opioids, collectively termed ECPO. The nature of ECPO use can make it difficult to detect due to few obvious immediate physical and behavioural signs, as well as subtle long-term effects that allow adolescents to transition from initial exploration into hazardous ECPO use without easy detection by care providers. Here, we address the nature of the presentation of ECPO use in adolescents (roughly age 13-18 years), including challenges in detecting use and related complications, which affect screening, prevention, and intervention. We begin by reviewing empirical data on these difficult to detect effects in adolescents, including acute effects at cellular and neural levels and long-term neurocognitive and developmental changes that precede outwardly detectable physical signs. We then provide concrete approaches for providers to screen for ECPO use in adolescents even in the absence of overt physical and behavioural symptoms. Finally, we conclude with direct practice recommendations for prevention and intervention.


Subject(s)
Cannabis , Electronic Nicotine Delivery Systems , Substance-Related Disorders , Vaping , Adolescent , Analgesics, Opioid/adverse effects , Humans , Prescriptions , Vaping/adverse effects
9.
Article in English | MEDLINE | ID: mdl-35694031

ABSTRACT

Emerging adulthood (EA; ages 18-25) is characterized by socioemotional and neurodevelopmental challenges. Cannabis is a widely used substance among EAs, and hazardous use may increase risk for sustained use patterns and related health consequences. Research shows differential increases in hazardous use by objective as well as subjective measures of social inequality, with more concerning trajectories for youth with greater experiences of social inequality. Learning how to flexibly monitor and modify emotions in proactive ways (i.e., emotion regulation) is a central developmental task navigated during the EA window. Challenges to and with emotion regulation processes can contribute to the emergence of mental health symptoms during EA, including hazardous cannabis use. In this perspective, we highlight emotion dysregulation and social inequality as two critical factors that interact to either buffer against or exacerbate cannabis use during the EA period, noting critical gaps in the literature that merit additional research. We recommend novel methods and longitudinal designs to help clarify how dynamic cognition-emotion interplay predicts trajectories of negative emotional experiences and cannabis use in EA.

10.
Children (Basel) ; 9(5)2022 May 11.
Article in English | MEDLINE | ID: mdl-35626884

ABSTRACT

Receiving an opioid prescription during childhood increases the risk of hazardous prescription opioid (PO) use during emerging adulthood. Instruction on how to safely use POs plays an essential role in pediatric patients' capacity to utilize as well as to discontinue POs appropriately. This study aimed to evaluate pediatric PO label instructions provided to a large sample of pediatric outpatients. Data were extracted from the electronic healthcare records system identifying pediatric patients who received a PO between 2016 and 2019 from pediatric outpatient medical clinics were affiliated with a northwestern United States medical center and children's hospital. Pediatric patients (n = 12,613) between 0−17 years old who received a PO during outpatient care were included. Patients with chronic health conditions (e.g., cancer) or who received their PO from an inpatient medical setting were excluded. Patient demographics, medication instructions, associated diagnoses, and other prescription information (e.g., name of medication, dose, and quantity dispensed) were examined using automated text classification. Many label instructions did not include any indication/reason for use (20.8%). Virtually none of the POs (>99%) included instructions for how to reduce/wean off POs, contact information for questions about the POs, and/or instructions around how to dispose of the POs. Efforts are needed to ensure that pediatric PO instructions contain essential elements to improve comprehension of when and how to use POs for pediatric patients.

11.
PLoS One ; 17(3): e0262327, 2022.
Article in English | MEDLINE | ID: mdl-35271576

ABSTRACT

The fatty acid component of commodity soybean seeds typically consists of approximately 12-15% saturated fatty acids in the form of palmitic acid and stearic acid. An important goal in soybean breeding is the reduction of saturated fats, in order to produce healthier vegetable oils for food applications. Genetic approaches have been instrumental in reducing levels of palmitic acid, which is the most abundant saturated fat in soybean seeds. In this study we describe a new mutant allele of the FATB1a gene that encodes a palmitoyl-acyl carrier protein thioesterase. The mutation is expected to result in early termination of the FATB1A protein and mutant seeds carrying this allele contain 5.5% palmitic acid. This new allele can be introduced into conventional soybean lines, alone or in combination with other modifications to generate soybean lines with improved oil composition.


Subject(s)
Glycine max , Palmitic Acid , Fatty Acids/metabolism , Mutation , Palmitic Acid/metabolism , Plant Breeding , Plant Oils/metabolism , Plant Proteins/genetics , Plant Proteins/metabolism , Seeds/genetics , Seeds/metabolism , Soybean Oil/metabolism , Glycine max/genetics , Glycine max/metabolism
12.
Prev Med Rep ; 25: 101674, 2022 Feb.
Article in English | MEDLINE | ID: mdl-35127353

ABSTRACT

For some, substance use during adolescence may be a stepping stone on the way to substance use disorders in adulthood. Risk prediction models may help identify adolescent users at elevated risk for hazardous substance use. This preliminary analysis used cross-sectional data (n = 270, ages 13-18) from the baseline dataset of a randomized controlled trial intervening with adolescent alcohol and/or cannabis use. Models were developed for jointly predicting quantitative scores on three measures of hazardous substance use (Rutgers Alcohol Problems Index, Adolescent Cannabis Problem Questionnaire, and Hooked on Nicotine Checklist) based on personal risk factors using two statistical and machine learning methods: multivariate covariance generalized linear models (MCGLM) and penalized multivariate regression with a lasso penalty. The predictive accuracy of a model was evaluated using root mean squared error computed via leave-one-out cross-validation. The final proposed model was an MCGLM model. It has eleven risk factors: age, early life stress, age of first tobacco use, age of first cannabis use, lifetime use of other substances, age of first use of other substances, maternal education, parental attachment, family cigarette use, family history of hazardous alcohol use, and family history of hazardous cannabis use. Different subsets of these risk factors feature in the three outcome-specific components of this joint model. The quantitative risk estimate provided by the proposed model may help identify adolescent substance users of cannabis, alcohol, and tobacco who may be at an elevated risk of developing hazardous substance use.

13.
Neuroimage Clin ; 34: 102960, 2022.
Article in English | MEDLINE | ID: mdl-35172248

ABSTRACT

OBJECTIVE: One route to improve adolescent addiction treatment outcomes is to use translational approaches to help identify developmental neuroscience mechanisms that undergird active treatment ingredients and advance adolescent behavior change. METHODS: This sample included 163 adolescents (ages 15-19) randomized to motivational interviewing (MI) vs. brief adolescent mindfulness (BAM). Youth completed an fMRI paradigm assessing adolescent brain response to therapist language (complex reflection vs. mindful; complex reflection vs. confront; mindful vs. confront) at pre- (prior to the completion of the full intervention) and post-treatment (at 3-month follow-up) and behavioral measures at 3, 6 and 12 months. RESULTS: Youth in both treatment groups showed significant problem drinking reductions at 3 and 6 months, but MI youth demonstrated significantly better treatment outcomes than BAM youth at 12 months. We observed several significant treatment group differences (MI > BAM) in neural response to therapist language, including at pre-treatment when examining complex reflection vs. mindful, and complex reflection vs. confront (e.g., superior temporal gyrus, lingual gyrus); and at post-treatment when examining mindful vs. confront (e.g., supplementary motor area; middle frontal gyrus). When collapsed across treatment groups (MI + BAM), we observed significant differences by time, with youth showing a pattern of brain change in response to complex reflection vs. mindful, and complex reflection vs. confront (e.g., precuneus; postcentral gyrus). There was no evidence of a significant group × time interaction. However, brain change in response to therapist language (complex reflection vs. confront) in regions such as middle frontal gyrus, was associated with reductions in problem drinking at 12 months. Yet, few treatment group differences were observed. CONCLUSIONS: These data underscore the need to better understand therapist language and it's impact on the developing brain, in order to inform and aggregate the most impactful elements of addiction treatment for future treatment development for adolescents.


Subject(s)
Alcoholism , Behavior, Addictive , Motivational Interviewing , Adolescent , Adult , Alcoholism/therapy , Brain/diagnostic imaging , Humans , Language , Young Adult
14.
Prev Vet Med ; 194: 105419, 2021 Sep.
Article in English | MEDLINE | ID: mdl-34274864

ABSTRACT

To keep pace with rising opportunities for disease emergence and spread, surveillance in aquaculture must enable the early detection of both known and new pathogens. Conventional surveillance systems (designed to provide proof of disease freedom) may not support detection outside of periodic sampling windows, leaving substantial blind spots to pathogens that emerge in other times and places. To address this problem, we organized an expert panel to envision optimal systems for early disease detection, focusing on Ostreid herpesvirus 1 (OsHV-1), a pathogen of panzootic consequence to oyster industries. The panel followed an integrative group process to identify and weight surveillance system traits perceived as critical to the early detection of OsHV-1. Results offer a road map with fourteen factors to consider when building surveillance systems geared to early detection; factor weights can be used by planners and analysts to compare the relative value of different designs or enhancements. The results were also used to build a simple, but replicable, model estimating the system sensitivity (SSe) of observational surveillance and, in turn, the confidence in disease freedom that negative reporting can provide. Findings suggest that optimally designed observational systems can contribute substantially to both early detection and disease freedom confidence. In contrast, active surveillance as a singular system is likely insufficient for early detection. The strongest systems combined active with observational surveillance and engaged joint industry and government involvement: results suggest that effective partnerships can generate highly sensitive systems, whereas ineffective partnerships may seriously erode early detection capability. Given the costs of routine testing, and the value (via averted losses) of early detection, we conclude that observational surveillance is an important and potentially very effective tool for health management and disease prevention on oyster farms, but one that demands careful planning and participation. This evaluation centered on OsHV-1 detection in farmed oyster populations. However, many of the features likely generalize to other pathogens and settings, with the important caveat that the pathogens need to manifest via morbidity or mortality events in the species, life stages and environments under observation.


Subject(s)
Crassostrea , Herpesviridae Infections/veterinary , Herpesviridae , Animals , Aquaculture , Crassostrea/virology , Herpesviridae Infections/diagnosis
15.
Theor Appl Genet ; 133(4): 1189-1200, 2020 Apr.
Article in English | MEDLINE | ID: mdl-31960089

ABSTRACT

KEY MESSAGE: Two independent variant raffinose synthase 3 (RS3) alleles produced an equivalent phenotype and implicated the gene as a key contributor to soybean seed carbohydrate phenotype. Soybean is an important crop because the processed seed is utilized as a vegetable oil and a high protein meal typically used in livestock feeds. Raffinose and stachyose, the raffinose family of oligosaccharides (RFO) carbohydrate components of the seed, are synthesized in developing soybean seeds from sucrose and galactinol. Sucrose is considered positive for metabolizable energy, while RFO are anti-nutritional factors in diets of monogastric animals such as humans, poultry, and swine. To increase metabolizable energy available in soybean seed meal, prior research has been successful in deploying variant alleles of key soybean raffinose synthase (RS) genes leading to reductions or near elimination of seed RFO, with significant increases in seed sucrose. The objective of this research was to investigate the specific role of variants of the RS3 gene in a genomic context and improve molecular marker-assisted selection for the ultra-low (UL) RFO phenotype in soybean seeds. The results revealed a new variant of the RS3 allele (rs3 snp5, rs3 snp6) contributed to the UL RFO phenotype when mutant alleles of RS2 were present. The variant RS3 allele identified was present in about 15% of a small set of soybean cultivars released in North America. A missense allele of the RS3 gene (rs3 G75E) also produced the UL RFO phenotype when combined with mutant alleles of RS2. The discoveries reported here enable direct marker-assisted selection for an improved soybean meal trait that has the potential to add value to soybean by improving the metabolizable energy of the meal.


Subject(s)
Carbohydrate Metabolism , DNA Shuffling , Glycine max/metabolism , Seeds/metabolism , Alleles , Carbohydrates , Ecotype , Genes, Plant , Haplotypes/genetics , Mutation/genetics , Polymorphism, Single Nucleotide/genetics , Reverse Genetics
16.
Addict Behav ; 104: 106314, 2020 05.
Article in English | MEDLINE | ID: mdl-31962289

ABSTRACT

Many adults with opioid use disorder (OUD) report that their first exposure to opioids was in the course of routine pain treatment in medical care settings. Adolescents receive opioid prescriptions with frequency, but are susceptible to a constellation of unique risks in the context of pain management. This empirical study presents the first cohort of adolescents recruited from ambulatory medical care within 72 h of their receipt of opioids to treat acute pain. The primary aim was to capture a time-sensitive report of the intersection of prescription opioid receipt and contextual risks for opioid misuse related to pain experience, mental health symptoms, and substance use at the adolescent and parental levels. Data were collected from 70 14-19-year-old adolescents and their accompanying parent. Results reflected that 90% of this sample of adolescents reported 2 or more risks and 35% reported 5 or more risks for future opioid misuse. Pain catastrophizing (46%) and alcohol use (40%) and were the most common adolescent-level risk factors; mother history of chronic pain (32%) and parent anxiety (21%) were the most common parent-level risk factors. Past-week parent pain intensity showed the strongest association with adolescent past-week pain intensity; neither was associated with adolescent OUD symptoms. Adolescent pain catastrophizing most reliably predicted OUD symptoms; parent pain interference was also associated. Seventy-one percent of parents reported keeping opioids at home, a relevant risk factor for future misuse. These findings illuminate the intersection between adolescent and parental risks in the context of pediatric opioid prescribing for acute pain management, and provide initial insight into potential points of prevention early in adolescent pain treatment, including avenues by which to inform and enhance prescriber decision-making regarding factors to be weighed in adolescent candidacy for opioid therapy.


Subject(s)
Acute Pain/drug therapy , Acute Pain/psychology , Analgesics, Opioid/therapeutic use , Opioid-Related Disorders/epidemiology , Prescription Drug Misuse , Adolescent , Ambulatory Care , Family Characteristics , Female , Humans , Male , Parents , Prescription Drugs/therapeutic use , Risk Factors , Young Adult
17.
Genes (Basel) ; 10(12)2019 12 03.
Article in English | MEDLINE | ID: mdl-31817015

ABSTRACT

Soybean seeds produce valuable protein that is a major component of livestock feed. However, soybean seeds also contain the anti-nutritional raffinose family oligosaccharides (RFOs) raffinose and stachyose, which are not digestible by non-ruminant animals. This requires the proportion of soybean meal in the feed to be limited, or risk affecting animal growth rate or overall health. While reducing RFOs in soybean seed has been a goal of soybean breeding, efforts are constrained by low genetic variability for carbohydrate traits and the difficulty in identifying these within the soybean germplasm. We used reverse genetics Targeting Induced Local Lesions in Genomes (TILLING)-by-sequencing approach to identify a damaging polymorphism that results in a missense mutation in a conserved region of the RAFFINOSE SYNTHASE3 gene. We demonstrate that this mutation, when combined as a double mutant with a previously characterized mutation in the RAFFINOSE SYNTHASE2 gene, eliminates nearly 90% of the RFOs in soybean seed as a proportion of the total seeds carbohydrates, and results in increased levels of sucrose. This represents a proof of concept for TILLING by sequencing in soybean.


Subject(s)
Alleles , Galactosyltransferases , Glycine max/genetics , Polymorphism, Genetic , Sequence Analysis, DNA , Galactosyltransferases/genetics , Galactosyltransferases/metabolism , Genetics, Population , Oligosaccharides/genetics , Oligosaccharides/metabolism , Plant Breeding , Raffinose/genetics , Raffinose/metabolism , Seeds/genetics , Seeds/metabolism , Soybean Proteins/genetics , Soybean Proteins/metabolism , Glycine max/metabolism
18.
Alcohol Clin Exp Res ; 43(4): 578-592, 2019 04.
Article in English | MEDLINE | ID: mdl-30779445

ABSTRACT

Although adolescents are developmentally distinct from adults, they often receive addiction treatment based on adult models. This is problematic because adolescents face significantly different conditions in addiction treatment, including distinct basic biological and neurodevelopmental stages, unique sociodevelopmental concerns, distinctive addiction trajectories, and, in turn, disparate treatment goals and outcomes. In sum, it can be difficult for even savvy clinicians to know how to approach addiction treatment with this important age group. In an effort to help clinicians and researchers consider substance use via a neurodevelopmental lens, we approached this review with 4 goals: (i) characterize the prevalence, and related health and safety implications of substance use within this age group; (ii) identify the nature of the adolescent brain, including characteristic features of this phase of neurodevelopment relevant to adolescent substance use treatment; (iii) provide an overview of current adolescent addiction interventions and avenues to improve clinical treatment and clinical research efforts for adolescents; and (iv) examine the intersection between the nature of the developing brain and adolescent substance use, and utilize that information to inform alternative routes and directions for substance use treatment in this critical age group. This review concludes by offering a novel neurodevelopmental model and framework to examine substance use interventions, along with a series of recommendations to optimize adolescent substance use treatment and clinical research.


Subject(s)
Adolescent Behavior/physiology , Adolescent Behavior/psychology , Behavior, Addictive/therapy , Brain/growth & development , Substance-Related Disorders/therapy , Adolescent , Humans
19.
Matern Child Health J ; 22(9): 1247-1254, 2018 09.
Article in English | MEDLINE | ID: mdl-29943262

ABSTRACT

Purpose In the United States, families with children characterize the fastest growing portion of the homeless population. Parenting for families experiencing homelessness presents unique challenges since families facing homelessness are disproportionately more likely to experience a myriad of interpersonal and contextual stressors that heighten the risk of parents engaging in suboptimal parenting approaches. This article describes the development and implementation of the Family Care Curriculum (FCC) train-the-trainer parenting support program specifically designed to support positive parenting in families experiencing homelessness. Description The FCC is a 6-week theory-based parenting intervention aimed to create positive shifts in parental attitudes to enhance sensitive and nurturing parenting and positive parent-child relationships. FCC assists parents in reflecting on how their own experiences contribute to some of their parenting beliefs, patterns, and behaviors. Parents are coached to imagine and understand the emotions, attachment, and developmental needs behind their children's behaviors so they can maintain empathic and nurturing parenting responses in the context of cumulative and chronic stress. Parents are supported through learning to engage in self-care. A unique and important feature of the FCC is the inclusion of a culturally sensitive approach that takes into consideration the effects of racism, classism, and oppression on parent-child relationships. Conclusion FCC was designed, implemented, and championed by expert providers in the fields of family therapy, social work, and pediatrics to support parents experiencing homelessness. FCC adds to the body of effective attachment-based, trauma-informed, and culturally sensitive parenting interventions for improving parent-child relations and family health amongst vulnerable populations.


Subject(s)
Curriculum , Family Health , Homeless Youth/psychology , Ill-Housed Persons , Parent-Child Relations , Parenting/psychology , Parents/education , Adaptation, Psychological , Adult , Child , Family/psychology , Female , Housing , Humans , Male , Object Attachment , Parents/psychology , Program Development , Program Evaluation , Resilience, Psychological , Social Work/methods , Stress, Psychological
20.
J Pediatr Psychol ; 43(8): 821-830, 2018 09 01.
Article in English | MEDLINE | ID: mdl-29767781

ABSTRACT

Objective: To reduce rates of sexually transmitted infections (STIs) and unwanted pregnancy among adolescents, it is critical to investigate brain connectivity that may underlie adolescents' sexual health decision-making in the context of intercourse. This study explored relationships between adolescent condom use frequency and the brain's resting-state functional connectivity, to identify differential patterns of social-affective processing among sexually active youth. Methods: In this study, N = 143 sexually active adolescents (68.5% male, Mage = 16.2 years, SD = 1.06) completed magnetic resonance imaging and reported past 3-month frequency of condom use. Resting-state connectivity, seeded on a social region of the brain, the temporoparietal junction (TPJ), was assessed to determine its correspondence with protected sex (condom use). Results: Condom use was associated with positive connectivity between the left TPJ and bilateral inferior frontal gyrus (IFG). This relationship was observed in adolescent males only; no connectivity differences were observed with adolescent females. Conclusions: This study reflects functional synchrony between nodes of the "social brain," including the TPJ, and a region of planfulness and control, the IFG. The relationship between these regions suggests that adolescents who have more coordinated systems of communication between these critical components of the brain are more likely to be successful in planning and engaging in safer sexual decision-making; for young males, this differentiated more frequent from less frequent condom use. In turn, interventions designed to reduce STIs/human immunodeficiency virus may benefit from targeting social-planfulness dimensions to help youth implement safer sex behaviors.


Subject(s)
Adolescent Behavior/psychology , Brain/physiology , Condoms/statistics & numerical data , Decision Making/physiology , Safe Sex/psychology , Social Behavior , Adolescent , Brain/diagnostic imaging , Contraception Behavior/psychology , Contraception Behavior/statistics & numerical data , Female , Humans , Magnetic Resonance Imaging , Male , Safe Sex/statistics & numerical data , Sex Factors
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