Publications by authors named "Chamberlin L"

Article Synopsis
  • - Members of the Botryosphaeria genus are known to harm stressed oak trees in the eastern U.S., particularly affecting two similar species, Diplodia corticola and D. gallae, whose characteristics are still not fully understood.
  • - On August 15, 2023, researchers collected tissue samples from a declining Quercus coccinea tree in Virginia, noting symptoms like scorched leaves and branch dieback, to analyze the specific pathogen involved.
  • - The study involved isolating the pathogens, culturing them in a lab, and sequencing their DNA, resulting in the identification of DNA fragments that have been added to the GenBank database for further research.
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Article Synopsis
  • Since the early 1900s, oak decline has been recognized as a disease affecting hardwood forests in the U.S., with opportunistic canker pathogens causing issues like crown dieback in oak trees, particularly in mid-Atlantic states.* -
  • A survey was conducted in August 2022 in Frederick and Shenandoah Counties, Virginia, where mature Quercus montana trees showed symptoms of decline, including cankers and discolored sapwood.* -
  • Researchers collected samples from these trees, grew cultures in controlled conditions, and confirmed that the fungi from both spores and necrotic wood were morphologically identical, indicating a connection to the observed decline.*
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The cognitive symptoms of schizophrenia (SZ) present a significant clinical burden. They are treatment resistant and are the primary predictor of functional outcomes. Although the neural mechanisms underlying these deficits remain unclear, pathological GABAergic signaling likely plays an essential role.

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Objective: To examine group differences in self-reported migraine days among youth who completed the Childhood and Adolescent Migraine Prevention (CHAMP) trial prior to its closure and explore the relationship between self-reported and "nosology-derived" (i.e., International Classification of Headache Disorders, 3rd edition [ICHD-3]) migraine days.

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Objective: To describe protocol adaptations to the Fibromyalgia Integrative Training for Teens (FIT Teens) randomized controlled trial in response to the COVID-19 pandemic. The overarching aims of the FIT Teens multi-site 3-arm comparative effectiveness trial are to assess whether a specialized neuromuscular exercise training intervention combined with cognitive-behavioral therapy (CBT) is superior to CBT alone or graded aerobic exercise alone.

Design/methods: The trial was originally designed as an in-person, group-based treatment with assessments at baseline, mid- and post-treatment, and four follow-up time points.

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Objective: Examine preventive medication adherence among youth with migraine.

Methods: Adherence (self-report, pill count, and blood serum drug levels) was assessed as an ancillary study that utilized data from 328 CHAMP Study participants (ages 8-17). CHAMP was a multisite trial of preventive medications.

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Objective: Identify preventive medication treatment response trajectories among youth participating in the Childhood and Adolescent Migraine Prevention study.

Methods: Data were evaluated from 328 youth (ages 8-17). Childhood and Adolescent Migraine Prevention study participants completed headache diaries during a 28-day baseline period and a 168-day active treatment period during which youth took amitriptyline, topiramate, or placebo.

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Importance: Migraine is a common neurological disease that often begins in childhood and continues into adulthood; approximately 6 million children and adolescents in the United States cope with migraine, and many frequently experience significant disability and multiple headache days per week. Although pharmacological preventive treatments have been shown to offer some benefit to youth with migraine, additional research is needed to understand whether and how these benefits are sustained.

Objective: To survey clinical status of youth with migraine who participated in the 24-week Childhood and Adolescent Migraine Prevention (CHAMP) trial over a 3-year follow-up period.

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The neurobiology of schizophrenia involves multiple facets of pathophysiology, ranging from its genetic basis over changes in neurochemistry and neurophysiology, to the systemic level of neural circuits. Although the precise mechanisms associated with the neuropathophysiology remain elusive, one essential aspect is the aberrant maturation and connectivity of the prefrontal cortex that leads to complex symptoms in various stages of the disease. Here, we focus on how early developmental dysfunction, especially N-methyl-D-aspartate receptor (NMDAR) development and hypofunction, may lead to the dysfunction of both local circuitry within the prefrontal cortex and its long-range connectivity.

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Decreased pleasure-seeking (anhedonia) forms a core symptom of depression. Stressful experiences precipitate depression and disrupt reward-seeking, but it remains unclear how stress causes anhedonia. We recorded simultaneous neural activity across limbic brain areas as mice underwent stress and discovered a stress-induced 4 Hz oscillation in the nucleus accumbens (NAc) that predicts the degree of subsequent blunted reward-seeking.

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Objective: To compare spatial pain modulation capabilities between adolescents with and without migraine.

Background: Conditioned pain modulation (CPM) responses at the leg are similar in adolescents with versus without migraine. However, the anatomical region of testing may affect spatial pain modulation capabilities as differences in nociceptive processing between patients with migraine and healthy controls are found in local areas that are near the site of clinical pain but not in nonlocal areas.

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Cognitive behavioral therapy (CBT) is a psychological intervention that involves development of coping strategies to reduce the experience of pain. Although CBT is a promising intervention to reduce headache days in patients with migraine, it may not be effective for all patients. Thus, there is a need to identify markers that could predict which patients will respond to CBT.

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Objectives: This basic mechanistic study examined the changes in brain activation and resting-state connectivity after 8 weeks of CBT in youth with migraine.

Background: Cognitive behavioral therapy (CBT) is a psychological intervention that is effective in reducing pain in migraine patients. However, the neural mechanisms underlying CBT in adolescents with migraine are not yet known.

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H-current, also known as hyperpolarization-activated current (Ih), is an inward current generated by the hyperpolarization-activated cyclic nucleotide-gated (HCN) cation channels. Ih plays an essential role in regulating neuronal properties, synaptic integration and plasticity, and synchronous activity in the brain. As these biological factors change across development, the brain undergoes varying levels of vulnerability to disorders like schizophrenia that disrupt prefrontal cortex (PFC)-dependent function.

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Background: Adequate nutrition is essential for growth in children with cystic fibrosis (CF). The new CF Foundation Clinical Practice Guidelines bring attention to monitoring macronutrient intake as well as total energy.

Methods: Dietary intake of 75 preschool children with CF and pancreatic insufficiency was examined and compared to the Clinical Practice Guidelines.

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Background: Which medication, if any, to use to prevent the headache of pediatric migraine has not been established.

Methods: We conducted a randomized, double-blind, placebo-controlled trial of amitriptyline (1 mg per kilogram of body weight per day), topiramate (2 mg per kilogram per day), and placebo in children and adolescents 8 to 17 years of age with migraine. Patients were randomly assigned in a 2:2:1 ratio to receive one of the medications or placebo.

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Objective: The purpose of this investigation was to examine treatment adherence to medication and lifestyle recommendations among pediatric migraine patients using electronic monitoring systems.

Background: Nonadherence to medical treatment is a significant public health concern, and can result in poorer treatment outcomes, decreased cost-effectiveness of medical care, and increased morbidity. No studies have systematically examined adherence to medication and lifestyle recommendations in adolescents with migraine outside of a clinical trial.

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Objective: To describe baseline headache characteristics of children and adolescents participating in a multicenter, randomized, double-blinded, placebo-controlled, comparative effectiveness study of amitriptyline, topiramate, and placebo for the prevention of migraine (CHAMP Study).

Methods: Children and adolescents (age 8-17 years old, inclusive) diagnosed with migraine with or without aura, having headaches at least four times per month were enrolled from 2012 through 2014. The trial involved a baseline period (minimum of 28 days) during which prospective diaries were completed and demographics and headache features obtained.

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Importance: Evidence-based treatments that achieve optimal energy intake and improve growth in preschool-aged children with cystic fibrosis (CF) are a critical need.

Objective: To test whether behavioral and nutritional treatment (intervention) was superior to an education and attention control treatment in increasing energy intake, weight z (WAZ) score, and height z (HAZ) score.

Design, Setting, And Participants: This randomized clinical trial included 78 children aged 2 to 6 years (mean age, 3.

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Background: The purpose of this study was to evaluate the utility of the Cystic Fibrosis Questionnaire-Revised (CFQ-R) with toddlers and preschool-aged children. Clinically relevant relations between health-related quality of life (HRQOL), stress, and mealtime behaviors have not been examined. It was hypothesized that problematic mealtime behaviors and increased stress would be negatively associated with HRQOL.

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Background: Migraine is one of the most common health problems for children and adolescents. If not successfully treated, it can impact patients and families with significant disability due to loss of school, work, and social function. When headaches become frequent, it is essential to try to prevent the headaches.

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Background: A combined behavior-nutrition approach is recommended for children with CF with growth deficits. The present study aimed to use a qualitative approach to 1) understand families' experiences using behavior-nutrition intervention strategies and 2) identify the challenges with CF management families experienced during the developmental transition between toddlerhood and early school-age.

Methods: Eight families (mean age of children=8.

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This study examined the factor structure for three of the Child Feeding Questionnaire (CFQ) subscales, a widely used measure of parental feeding practices, among 296 low-income parents of African American preschool children. Confirmatory factor analysis showed an overall poor fit among CFQ subscales; Restriction, Pressure to Eat, and Concern about Child Weight, (chi(2), (df=87=300.249, CFI=1.

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