623 results match your criteria: "the University of Tulsa[Affiliation]"

Background: Active commuting to school (ACS) can be an important source of physical activity for children. Schools are an important setting for policy-related ACS promotion. The purpose of this study was to examine the association between school policies and ACS, and to assess whether this relation varied by grade.

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Placenta DNA methylation levels of the promoter region of the leptin receptor gene are associated with infant cortisol.

Psychoneuroendocrinology

July 2023

Department of Psychiatry and Human Behavior, Warren Alpert Medical School, Brown University, United States; Center for Behavioral and Preventive Medicine, The Miriam Hospital, United States. Electronic address:

The intrauterine environment and early life stress regulation are widely recognized as an early foundation for lifelong physical and mental health. Methylation of CpG sites in the placenta represents an epigenetic modification that can potentially affect placental function, influence fetal development, and ultimately impact the health of offspring by programming the hypothalamic-pituitary-adrenal (HPA) axis stress response during prenatal development. Leptin, an adipokine produced by the placenta, is essential for energy homeostasis.

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First report of Potato Yellow Dwarf Nucleorhabdovirus infecting pepper (Capsicum spp.) in Oklahoma.

Plant Dis

April 2023

University of Tulsa, 8050, Biological Science, 800 S Tucker Dr, Tulsa, Oklahoma, United States, 74104-9700;

Pepper (Capsicum spp.) is an economically valuable crop used for spice and fresh vegetable (Tripodi, and Kumar. 2019).

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The neurotrophic herpes virus cytomegalovirus is a known cause of neuropathology in utero and in immunocompromised populations. Cytomegalovirus is reactivated by stress and inflammation, possibly explaining the emerging evidence linking it to subtle brain changes in the context of more minor disturbances of immune function. Even mild forms of traumatic brain injury, including sport-related concussion, are major physiological stressors that produce neuroinflammation.

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Article Synopsis
  • - Adolescents faced heightened levels of anxiety and depression during the COVID-19 pandemic, and this study aimed to see if these feelings persisted over time.
  • - A small group of 15 healthy adolescents was assessed for their mental health at three different times (before the pandemic, early on, and later), revealing that symptoms of anxiety and depression remained elevated in the later stages of the pandemic.
  • - Findings suggested that difficulty managing emotions during the early pandemic was linked to increased anxiety and depression later on, indicating a need for further research with larger groups to better understand these trends.
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Article Synopsis
  • The study looked at how brain activity when resting (RSFC) relates to negative thinking in people with depression (RNT).
  • Researchers wanted to see if the way the brain connects while resting is linked to this negative thinking or if it's about other personal traits.
  • They found that brain activity during negative thinking (NTFC) could predict negative thinking better than resting brain activity (RSFC) in depressed individuals, showing that RNT involves active brain processes.
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Individual differences in computational psychiatry: A review of current challenges.

Neurosci Biobehav Rev

May 2023

Krembil Centre for Neuroinformatics, Centre for Addiction and Mental Health (CAMH), Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada; Department of Psychology, University of Toronto, Toronto, ON, Canada.

Bringing precision to the understanding and treatment of mental disorders requires instruments for studying clinically relevant individual differences. One promising approach is the development of computational assays: integrating computational models with cognitive tasks to infer latent patient-specific disease processes in brain computations. While recent years have seen many methodological advancements in computational modelling and many cross-sectional patient studies, much less attention has been paid to basic psychometric properties (reliability and construct validity) of the computational measures provided by the assays.

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Carotenoid pigments underlie most of the red, orange, and yellow visual signals used in mate choice in vertebrates. However, many of the underlying processes surrounding the production of carotenoid-based traits remain unclear due to the complex nature of carotenoid uptake, metabolism, and deposition across tissues. Here, we leverage the ability to experimentally induce the production of a carotenoid-based red plumage patch in the red-backed fairywren (Malurus melanocephalus), a songbird in which red plumage is an important male sexual signal.

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Background: Obesity is highly prevalent and disabling, especially in individuals with severe mental illness including bipolar disorders (BD). The brain is a target organ for both obesity and BD. Yet, we do not understand how cortical brain alterations in BD and obesity interact.

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Smart Streets as a Cyber-Physical Social Platform: A Conceptual Framework.

Sensors (Basel)

January 2023

Collins College of Business, The University of Tulsa, Tulsa, OK 74104, USA.

Streets perform a number of important functions and have a wide range of activities performed in them. There is a small but growing focus on streets as a more generalisable, atomised, and therefore more manageable unit of development and analysis than cities. Despite the public realm being one of the largest physical spaces on streets, the impact and potential of digitalisation projects on this realm is rarely considered.

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Chloroquine-Based Mitochondrial ATP Inhibitors.

Molecules

January 2023

Department of Chemistry and Biochemistry, The University of Tulsa, 430 South Gary Place, Tulsa, OK 74104, USA.

Mitochondria is an important drug target for ailments ranging from neoplastic to neurodegenerative diseases and metabolic diseases. Here, we describe the synthesis of chloroquine analogs and show the results of mitochondrial ATP inhibition testing. The 2,4-dinitrobenzene-based analogs showed concentration-dependent mitochondrial (mito.

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Prevalence and Risk Factors for Intensive Care Unit Delirium After Traumatic Brain Injury: A Retrospective Cohort Study.

Neurocrit Care

June 2023

Critical Illness, Brain Dysfunction, and Survivorship Center, Vanderbilt Center for Health Services Research, Vanderbilt Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, TN, USA.

Article Synopsis
  • A study was conducted to evaluate the predictors of delirium in ICU patients who suffered traumatic brain injuries (TBI), finding a high prevalence of 60%.
  • Key factors associated with increased delirium duration included older age, higher injury severity, and specific intracranial hemorrhage characteristics.
  • The findings highlight the need for further research to understand the impact of delirium on recovery and explore strategies to reduce its occurrence in TBI patients.
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Introduction: Repetitive negative thinking (RNT) is a cognitive process focusing on self-relevant and negative experiences, leading to a poor prognosis of major depressive disorder (MDD). We previously identified that connectivity between the precuneus/posterior cingulate cortex (PCC) and right temporoparietal junction (rTPJ) was positively correlated with levels of RNT.

Objective: In this double-blind, randomized, sham-controlled, proof-of-concept trial, we employed real-time functional magnetic resonance imaging neurofeedback (rtfMRI-nf) to delineate the neural processes that may be causally linked to RNT and could potentially become treatment targets for MDD.

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Ibuprofen, a non-steroidal, anti-inflammatory drug, modulates inflammation but may also have neuroprotective effects on brain health that are poorly understood. Astrocyte-enriched extracellular vesicles (AEEVs) facilitate cell-to-cell communication and - among other functions - regulate inflammation and metabolism via microribonucleic acids (miRNAs). Dysfunctions in reward-related processing and inflammation have been proposed to be critical pathophysiological pathways in individuals with mood disorders.

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Unlabelled: The central nervous system (CNS) exerts a strong regulatory influence over the cardiovascular system in response to environmental demands. Floatation-REST (Reduced Environmental Stimulation Therapy) is an intervention that minimizes stimulation from the environment, yet little is known about the autonomic consequences of reducing external sensory input to the CNS. We recently found that Floatation-REST induces a strong anxiolytic effect in anxious patients while paradoxically enhancing their interoceptive awareness for cardiorespiratory sensations.

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Article Synopsis
  • This study explores how maternal health before pregnancy, including factors like body mass index (PPBMI) and household income, influences newborn stress responses, specifically cortisol levels.* -
  • Researchers assessed 102 mother-infant pairs, finding that higher maternal income and PPBMI were linked to a healthier cortisol awakening response (mCAR), which correlated with lower cortisol levels in newborns during a stress test.* -
  • The findings indicate that the combination of maternal income and PPBMI significantly affects infant cortisol output, suggesting that these factors interact in shaping newborn stress response, independent of maternal cortisol levels during pregnancy.*
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Dynamic predictors of in-hospital and 3-year mortality after traumatic brain injury: A retrospective cohort study.

Am J Surg

April 2023

Critical Illness, Brain Dysfunction, & Survivorship Center, Vanderbilt Center for Health Services Research, Vanderbilt Institute for Medicine and Public Health, Vanderbilt University Medical Center, Suite 450, 4th Floor, 2525 West End Avenue Nashville, TN, 37203, USA; Division of Acute Care Surgery, Department of Surgery, Section of Surgical Sciences, Vanderbilt University Medical Center, 1211 21st Avenue South, Suite 404, Nashville, TN, 37212, USA; Vanderbilt University Medical Center, Geriatric Research Education and Clinical Center, Surgical Services, Tennessee Valley Healthcare System, USA. Electronic address:

Background: Mortality risks after Traumatic Brain Injury (TBI) are understudied in critical illness. We sought to identify risks of mortality in critically ill patients with TBI using time-varying covariates.

Methods: This single-center, six-year (2006-2012), retrospective cohort study measured demographics, injury characteristics, and daily data of acute TBI patients in the Intensive Care Unit (ICU).

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Background: The balance between neurotoxic and neuroprotective effects of kynurenine pathway (KP) components has been recently proposed as a key element in the pathophysiology of bipolar disorder (BD) and related mood episodes. This comprehensive overview explored the link of KP with symptom severity and other clinical features of BD.

Methods: We searched Medline, Embase, and PsycInfo electronic databases for studies assessing the association of peripheral and/or central concentrations of KP metabolites with putative clinical features, including symptom severity and other clinical domains in BD.

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Background: Patients with posttraumatic stress disorder (PTSD) tend to overgeneralize threat to safe stimuli, potentially reflecting aberrant stimuli discrimination. Yet, it is not clear whether threat overgeneralization reflects general discrimination deficits, or rather a specific bias related to aversive stimuli. Here we tested this question and characterized the neural correlates of threat discrimination.

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Rationale: At least six different types of antidepressant treatments have been shown to either increase the neuroprotective kynurenine pathway (KP) metabolite, kynurenic acid (KynA), or decrease the neurotoxic KP metabolite, quinolinic acid (QA). Nonsteroidal anti-inflammatory drugs (NSAIDs) including ibuprofen have shown some efficacy in the treatment of depression but their effects on the KP have not been studied in humans.

Objectives: To evaluate the effect of ibuprofen on circulating KP metabolites.

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Background: China's terrestrial ecosystems play a pronounced role in the global carbon cycle. Here we combine spatially-explicit information on vegetation, soil, topography, climate and land use change with a process-based biogeochemistry model to quantify the responses of terrestrial carbon cycle in China during the 20th century.

Results: At a century scale, China's terrestrial ecosystems have acted as a carbon sink averaging at 96 Tg C yr, with large inter-annual and decadal variabilities.

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First Report of Fusarium oxysporum f. sp. vasinfectum causing Fusarium Wilt of Cotton in Kansas, U.S.A.

Plant Dis

September 2022

University of Tulsa, Biological Science, 800 S Tucker Dr, Tulsa, Oklahoma, United States, 74104-9700;

Fusarium wilt is one of the most devastating diseases of cotton (Gossypium spp.). It is caused by the soil-borne pathogen Fusarium oxysporum Schlechtend.

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Article Synopsis
  • Repetitive negative thinking (RNT) is when people keep worrying about bad things that happened in the past or might happen in the future, and it often happens in people with major depression.
  • Researchers looked at 148 people with major depression and found two groups: one that had high RNT and another that had low RNT, comparing them while keeping their depression levels similar.
  • They discovered that those with high RNT had stronger connections in certain brain areas related to speech and emotions, hinting that changing these brain connections might help lessen RNT in the future.
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