11,541 results match your criteria: "University of Colorado-Denver.[Affiliation]"

microRNAs in congenital diaphragmatic hernia: insights into prenatal and perinatal biomarkers and altered molecular pathways.

Am J Obstet Gynecol MFM

December 2024

Department of Surgery, University of Colorado School of Medicine, Aurora, CO (Bardill, Breckenfelder, Eason, Gallagher, and Derderian); Department of Surgery, Laboratory for Fetal and Regenerative Biology, University of Colorado Denver School of Medicine, Aurora, CO (Bardill, Breckenfelder, Eason, Khailova, and Derderian); Colorado Fetal Care Center, Children's Hospital Colorado, Aurora, CO (Galan and Derderian); Division of Pediatric Surgery, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO (Derderian). Electronic address:

Background: Congenital diaphragmatic hernia (CDH) is characterized by a diaphragmatic defect, leading to herniation of abdominal organs into the chest, lung compression, and impaired lung development, often resulting in pulmonary hypertension and lung hypoplasia. Prenatal imaging techniques like ultrasound and MRI provide anatomical predictors of outcomes, but their limitations necessitate novel biomarkers for better prognostic accuracy.

Objective: This study aims to identify unique circulating maternal, fetal, and neonatal microRNAs (miRNAs) that can distinguish CDH pregnancies from healthy controls and assess their potential as markers of disease severity.

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Surgical Predictors of Clinical Outcome 6 Years After Revision ACL Reconstruction.

Am J Sports Med

November 2024

Luminis Health Orthopedics, Pasadena, MD, USA.

Background: Revision anterior cruciate ligament (ACL) reconstruction has been documented to have inferior outcomes compared with primary ACL reconstruction. The reasons why remain unknown.

Purpose: To determine whether surgical factors performed at the time of revision ACL reconstruction can influence a patient's outcome at 6-year follow-up.

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Article Synopsis
  • Surgical management for long head of the biceps tendon tendinopathy is common, yet there is limited information on the use of physical therapy (PT) prior to such procedures.
  • A study analyzed the medical records of 308 patients, revealing that only 20.1% attended PT before surgery, with an average of four visits; active interventions like therapeutic exercises were the most common.
  • The findings suggest PT is underutilized before biceps surgery, indicating a need for further research to explore the reasons behind this low engagement.
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Older Adults and Gentrification: The Positive Role of Social Policy.

Can J Aging

November 2024

Denver Department of Public Health and Environment, Denver, CO80202, USA.

Supportive public policies are suggested as ways to lessen gentrification's impact for older adults. While explicit policies designed to help older adults with gentrification are rare, literature on age-friendly cities is a close proxy. We utilized three North American cases undergoing gentrification: New York City, NY, and Denver, CO, in the United States and Hamilton, in Ontario, Canada, to present existing neighbourhood-based policies as social determinants of health in housing, resource access, healthcare, transportation, and communal places.

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  • RNA oxidation, particularly the formation of 8-oxo-7,8-dihydroguanosine (8-oxo-rG), serves as a key indicator of oxidative stress in cells.
  • Polynucleotide phosphorylase (PNPase) helps protect cells from oxidative stress by recognizing and degrading RNA containing 8-oxo-rG, but how 8-oxo-rG affects this process was previously unclear.
  • This study finds that 8-oxo-rG causes PNPase to stall during RNA degradation, particularly due to a crucial residue (Arg399), influencing bacterial survival under stress conditions.
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Pulmonary hypertension (PH) is a progressive vascular disease characterized by vascular remodeling, stiffening, and luminal obstruction, driven by dysregulated cell proliferation, inflammation, and extracellular matrix (ECM) alterations. Despite the recognized contribution of ECM dysregulation to PH pathogenesis, the precise molecular alterations in the matrisome remain poorly understood. In this study, we employed a matrisome-focused proteomics approach to map the protein composition in a young bovine calf model of acute hypoxia-induced PH.

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The EphB4-ephrinB2 signaling axis has been heavily implicated in metastasis across numerous cancer types. Our emerging understanding of the dichotomous roles that EphB4 and ephrinB2 play in head and neck squamous cell carcinoma (HNSCC) poses a significant challenge to rational drug design. We find that EphB4 knockdown in cancer cells enhances metastasis in preclinical HNSCC models by augmenting immunosuppressive cells like T regulatory cells (Tregs) within the tumor microenvironment.

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Aerosol mitigation in upper airway surgery.

Int J Pediatr Otorhinolaryngol

November 2024

Department of Otolaryngology-Head and Neck Surgery, University of Colorado School of Medicine, Aurora, CO, USA; Children's Hospital Colorado, Aurora, CO, USA.

Background: Aerosol generating procedures pose a risk for SARS-CoV-2 transmission, and comprise a large percentage of cases performed in otolaryngology. An optimal method to mitigate this hazard does not currently exist. This study examined methods to mitigate surgical aerosols from the operating room.

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  • Poor prenatal sleep quality in mothers is linked to negative outcomes for both the mother and infant, including changes in brain development and increased anxiety-like behaviors.
  • A study involving 116 mother-infant pairs used surveys to assess maternal sleep quality and MRI scans to examine neonatal brain development, specifically focusing on the uncinate fasciculus.
  • Results showed that poorer maternal sleep during pregnancy correlated with higher levels of white matter in infants, which then related to greater infant negative emotionality, indicating that maternal sleep is an important environmental factor influencing child development.
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  • With improved antiretroviral therapies, people with HIV are living longer but face higher rates of chronic diseases and physical impairments, making regular exercise important for reducing health issues.
  • Older adults with HIV often encounter specific challenges to exercising, and measuring their exercise self-efficacy (ESE) can help identify these barriers.
  • A study comparing ESE between older adults with HIV and those without found significant differences before exercise intervention; however, ESE did not change after 12 weeks, suggesting future interventions should focus on enhancing motivation through support and rewards.
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Background: Patient and interprofessional healthcare team member experiences of bedside interdisciplinary rounds (BIDR) are generally positive. Overall, there is large heterogeneity in existing BIDR frameworks, and best practices have not been defined.

Objective: Understand patients' and interprofessional healthcare team members' experiences of BIDR.

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Necrotizing enterocolitis (NEC) is a known cause of morbidity and mortality in infants with congenital heart disease (CHD), but reports about the burden of cardiogenic NEC frequently conflict. To synthesize the extant literature on the incidence, risk factors, and prognosis of NEC in patients with CHD. Medline, Cochrane, and EMBASE were searched from 1946 through 2023 for studies of NEC in infants 0-12 months of age with CHD.

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Background: The Multicenter Evaluation of the Duration of Therapy for Thrombosis in Children multinational, randomized clinical trial revealed noninferiority of a 6-week vs 3-month duration of anticoagulation for the treatment of provoked venous thromboembolism (VTE) in patients <21 years old in regard to net clinical benefit at 1 year.

Objectives: To evaluate noninferiority at 2 years.

Methods: Patients whose repeat imaging 6 weeks after VTE diagnosis did not show complete veno-occlusion were randomized to discontinue anticoagulation vs receive a total 3-month course and followed for 2 years for the occurrence of symptomatic recurrent VTE (efficacy outcome) and clinically relevant bleeding (safety outcome).

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Joint reaction and simulated muscle forces during squatting and walking in persons with hemophilia.

Clin Biomech (Bristol)

December 2024

Hemophilia and Thrombosis Center, University of Colorado Anschutz Medical Campus, 13199 E Montview Blvd, Aurora, CO 80045, United States of America. Electronic address:

Background: Persons with hemophilia experience joint bleeding that can lead to debilitating arthropathy, most commonly seen in ankles, knees, and elbows. Arthropathy can hinder participation in daily and athletic activities. We explored how hemophilic arthropathy impacts movement patterns in walking and bilateral squatting tasks in persons with hemophilia compared to healthy controls.

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Saccadic eye movements, a critical aspect of real-world visual behavior, are preceded by an initial accumulation of visual information followed by the selection of a single location to move one's eyes. However, it is currently unclear how each of these stages uniquely affects saccadic timing. In this study, participants searched for a contour integration target while EEG was used to measure posterior cortical activity between search display onset and first saccade initiation.

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Introduction: End-stage renal disease (ESRD) results in immune dysfunction that is characterized by both systemic inflammation and immune incompetence, leading to impaired responses to vaccination.

Methods: To unravel the complex regulatory immune interplay in ESRD, we performed the network-based transcriptomic profiling of ESRD patients on maintenance hemodialysis (HD) and matched healthy controls (HCs) who received the two-dose regimen of the COVID-19 mRNA vaccine BNT162b2.

Results: Co-expression networks based on blood transcription modules (BTMs) of genes differentially expressed between the HD and HC groups revealed co-expression patterns that were highly similar between the two groups but weaker in magnitude in the HD compared to HC subjects.

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Article Synopsis
  • Obstructive sleep-disordered breathing (oSDB) is becoming more common worldwide, especially in children, and it can lead to various health issues that impact quality of life.
  • Researchers studied the tonsils of children with oSDB to identify specific genes that may serve as biomarkers, focusing on the presence of Epstein-Barr virus (EBV) and the use of CPAP treatment.
  • Nineteen specific genes were found to be dysregulated in the tonsils, suggesting they could help assess the severity and related health problems of oSDB, and that their levels may be influenced by EBV infection.
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Diapause regulates seasonal insect life cycles and may be highly variable within and among populations due to genetic and environmental variability. Both types of variation may influence how populations respond plastically or evolutionarily to changing climates. We assessed diapause variability in spruce beetle Dendroctonus rufipennis Kirby (Coleoptera: Curculionidae, Scolytinae), a major forest pest whose life cycle timing is regulated by both prepupal and adult diapauses.

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Mucus hypersecretion is an important pathological problem in respiratory diseases. Mucus accumulates in the airways of people with asthma, and it contributes to airflow limitation by forming plugs that occlude airways. Current treatments have minimal effects on mucus or its chief components, the polymeric mucin glycoproteins MUC5AC and MUC5B.

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Hope is a powerful psychological construct which is linked to positive health. Greater hope is associated with improved antiretroviral therapy adherence; however, less is known about the impact of hope on oral pre-exposure prophylaxis (PrEP) outcomes. HIV Prevention Trials Network 082, was an open-label PrEP study among young women (ages 16-25) in South Africa and Zimbabwe.

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Background: Youth sports coaches play a critical role in proper concussion recognition and management, reinforcing the need for coach concussion education. As of 2021, most states have statutory and policy measures mandating concussion education for coaches. In practice, these mandates have been enacted through state legislatures and their respective youth sport governing bodies.

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Background: In healthy individuals, plasma levels of clotting proteins naturally vary within a range of 50% to 150% of their mean values. We do not know how these variations modify thrombin generation.

Objectives: To assess the impact of protein level variations on simulated thrombin generation in normal and factor (F)VIII-, FIX-, or FXI-deficient blood.

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