221 results match your criteria: "University of Nebraska Medical Center UNMC.[Affiliation]"

AIE materials for cancer cell detection, bioimaging and theranostics.

Prog Mol Biol Transl Sci

January 2022

Department of Bioengineering, Rice University, Houston, TX, United States. Electronic address:

AIE materials exhibit weakly emissive or non-emissive properties in dilute solutions while emit powerful fluorescence in the aggregated/solid state. Recently, AIE based materials have gained immense attention due to their multifunctional role in cancer cell detection, bioimaging and cancer theranostics. In this present book chapter, we will highlight recent advancements of AIE materials for different cancer theranostics applications.

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How to Transition Patients Back From Psychiatric Care to Primary Care: An Access Initiative Protocol Development.

Psychiatr Serv

July 2022

Department of Epidemiology (Watanabe-Galloway) and Department of Biostatistics (Qiu), College of Public Health, University of Nebraska Medical Center (UNMC), Omaha; College of Nursing, UNMC, Omaha (Emerson); Department of Psychiatry, College of Medicine, UNMC, Omaha (Doyle); Department of Psychiatry and Behavioral Sciences, School of Medicine, Mercer University, Atlanta (Johnson). Benjamin G. Druss, M.D., M.P.H., and Gail Daumit, M.D., M.H.S., are editors of this column.

This column describes the initial steps to develop a bidirectional access initiative between outpatient psychiatric and primary care clinics within an academic medical center. The authors analyzed electronic health record data (N=2,837 patients), interviewed psychiatric and primary care providers, assembled a work group, and identified five patient tracks (treatment optimization, psychiatric continuity, specialty clinic, psychotherapy, and community referral). Over 16 months, the number of patients scheduled for new psychiatric diagnostic evaluations with medical services increased from 62.

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Cytotoxic CD4+ T cells (CD4+ CTLs) limit HIV pathogenesis, as evidenced in elite controllers (a subset of individuals who suppress the virus without the need for therapy). CD4+ CTLs have also been shown to kill HIV-infected macrophages. However, little is known about their contribution towards HIV persistence, how they are affected following exposure to immune modulators like morphine, and what factors maintain their frequencies and function.

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Article Synopsis
  • Alzheimer's disease (AD) may not spare primary sensory function as previously thought, with cognitive variability influencing how somatosensory processing is affected in patients.
  • This study utilized magnetoencephalographic (MEG) imaging and extensive neuropsychological tests to compare somatosensory function between AD patients and cognitively-normal older adults, revealing that differences in function become apparent when cognitive factors are accounted for.
  • Results indicate that when cognitive abilities like attention and processing speed are considered, significant impairments in somatosensory responses in AD patients are identified, showing that previous research may have overlooked these functional deficits due to varying levels of cognitive decline.
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A year of genomic surveillance reveals how the SARS-CoV-2 pandemic unfolded in Africa.

Science

October 2021

KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa.

Article Synopsis
  • The SARS-CoV-2 pandemic in Africa has varied significantly across countries, and its overall impact remains unclear.
  • An analysis of 8,746 genomes from 33 African countries indicated that most outbreaks originated from Europe before international travel restrictions took effect.
  • As the pandemic continued, increased movement and local transmission led to the emergence of several variants within Africa, emphasizing the need for a strong pandemic response on the continent to prevent becoming a source of new variants.
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People with HIV (PWH) use cannabis at a higher rate than the general population, but the influence on neural activity is not well characterized. Cannabis use among PWH may have a beneficial effect, as neuroinflammation is known to be a critical problem in PWH and cannabis use has been associated with a reduction in proinflammatory markers. Thus, it is important to understand the net impact of cannabis use on brain and cognitive function in PWH.

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Ordering urine cultures in patients without pyuria is associated with the inappropriate treatment of asymptomatic bacteriuria (ASB). In 2015, our institution implemented recommendations based on practice guidelines for the management of ASB and revised the urine culture ordering process to limit cultures in immunocompetent patients without pyuria. The purpose of this study was to determine how the treatment of ASB has changed over time since altering the urine culture ordering process to reduce unnecessary cultures at an academic medical center.

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The emergence and rapid spread of novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused over 180 million confirmed cases resulting in over 4 million deaths worldwide with no clear end in sight for the coronavirus disease 19 (COVID-19) pandemic. Most SARS-CoV-2 exposed individuals experience mild to moderate symptoms, including fever, cough, fatigue, and loss of smell and taste. However, many individuals develop pneumonia, acute respiratory distress syndrome, septic shock, and multiorgan dysfunction.

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Gray matter volumes discriminate cognitively impaired and unimpaired people with HIV.

Neuroimage Clin

September 2021

Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE, USA; College of Medicine, University of Nebraska Medical Center (UNMC), Omaha, NE, USA. Electronic address:

Background: Current diagnostic criteria of HIV-associated neurocognitive disorders (HAND) rely on neuropsychological assessments. The aim of this study was to evaluate if gray matter volumes (GMV) can distinguish people with HAND, neurocognitively unimpaired people with HIV (unimpaired PWH), and uninfected controls using linear discriminant analyses.

Methods: A total of 231 participants, including 110 PWH and 121 uninfected controls, completed a neuropsychological assessment and an MRI protocol.

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Article Synopsis
  • Vancomycin's area under the concentration curve (AUC) can help predict the risk of acute kidney injury (AKI) associated with its use.
  • Research involved analyzing data from 48 rats and two clinical studies with a total of 554 participants (263 in PROVIDE and 291 in CAMERA2).
  • The study found that rats were significantly more sensitive to developing AKI at certain AUC levels, with a sensitivity increase of 2.7 to 4.2 times compared to humans.
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Background: Multiple tissue reservoirs are established soon after HIV infection, and some tissues may also be pharmacological sanctuaries. Parenteral administration of antiretroviral (ARV) drugs for treatment and prevention of HIV infection is an active area of drug development. The influence of route of administration on ARV tissue pharmacokinetics is not known.

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Objectives: Children with hearing loss (CHL) may exhibit spoken language delays and may also experience deficits in other cognitive domains including working memory. Consistent hearing aid use (i.e.

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Background: Despite effective combination antiretroviral therapy (cART), people living with HIV (PLWH) remain at risk for developing neurocognitive impairment primarily due to systemic inflammation that persists despite virologic suppression, albeit the mechanisms underlying such inflammation are poorly understood.

Methods: Herein, we evaluate the predictive capacity of the mitochondrial redox environment on circulating neuro- and T-lymphocyte-related inflammation and concomitant cognitive function in 40 virally-suppressed PLWH and 40 demographically-matched controls using structural equation modeling. We used state-of-the-art systems biology approaches including Seahorse Analyzer of mitochondrial function, electron paramagnetic resonance (EPR) spectroscopy to measure superoxide levels, antioxidant activity assays, and Meso Scale multiplex technology to quantify inflammatory proteins in the periphery.

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Role of toll-like receptor 7/8 pathways in regulation of interferon response and inflammatory mediators during SARS-CoV2 infection and potential therapeutic options.

Biomed Pharmacother

September 2021

Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India; National Interdisciplinary Centre of Vaccine, Immunotherapeutics and Antimicrobials, Panjab University, Chandigarh, 160014, India. Electronic address:

Article Synopsis
  • SARS-CoV2 causes COVID-19, and low levels of type I and III interferons alongside high inflammatory mediators worsen the disease's severity.
  • Controlled inflammation and optimal interferon production are crucial to mitigate COVID-19's harmful effects, as severe inflammation can lead to acute respiratory distress syndrome (ARDS).
  • The review emphasizes the importance of Toll-like receptor 7 and 8 pathways in regulating interferon and inflammation, suggesting that TLR7/8 agonists could be promising therapies to reduce COVID-19 severity.
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The Influence of Maternal Cognitions Upon Motor Development in Infants Born Preterm: A Scoping Review.

Pediatr Phys Ther

July 2021

Departments of Physical Therapy (Dr Jensen-Willett) and Education and Child Development (Drs Miller and Jackson), Munroe-Meyer Institute (MMI), University of Nebraska Medical Center (UNMC), Omaha, Nebraska; Physical Therapy (Dr Harbourne), Rangos School of Health Sciences, Duquesne University, Pittsburgh, Pennsylvania.

Purpose: This scoping review summarizes the extent, nature, and type of evidence linking broadly defined maternal cognitions to motor outcomes in infants born preterm. Maternal cognitions are beliefs, perceptions, or psychosocial attributes that inform parenting practices.

Methods: Arksey and O'Malley's 5-step method was applied.

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Performance of a commercially available multiplex platform in the assessment of circulating cytokines and chemokines in patients with rheumatoid arthritis and osteoarthritis.

J Immunol Methods

August 2021

University of Nebraska Medical Center (UNMC) Department of Internal Medicine, Division of Rheumatology, Omaha, NE, United States of America; Veterans Affairs (VA) Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America. Electronic address:

Background/objective: Cytokines and chemokines (cytokines) are central to rheumatoid arthritis (RA) pathogenesis, with increasing use of multiplex immunoassays in clinical/research settings. Rheumatoid factor (RF) may interfere with assay outcomes by nonspecifically binding detection analytes. We evaluated the performance of a commercially available multiplex platform, including assessment of the impact of RF depletion.

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While the antiarrhythmic drug amiodarone is commonly used in clinical practice, it has a narrow therapeutic index that can lead to acute overdose. One proposed method to deal with this toxicity is lipid emulsion therapy, which may potentially quench the free amiodarone in blood and prevent its further distribution to target organs and tissues. In this study, we utilize an established swine model to examine the effects of Intralipid™ (IL) administration for acute amiodarone toxicity.

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Children with hearing loss (CHL) exhibit delays in language function relative to children with normal hearing (CNH). However, evidence on whether these delays extend into other cognitive domains such as working memory is mixed, with some studies showing decrements in CHL and others showing CHL performing at the level of CNH. Despite the growing literature investigating the impact of hearing loss on cognitive and language development, studies of the neural dynamics that underlie these cognitive processes are notably absent.

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Background: In Sub-Saharan Africa, herbal therapy continues to be utilized for HIV-1 disease management. However, the therapeutic benefits of these substances remain ambiguous. To date, little is known about the effects of these plant extracts on chronic CD4 + T-cell activation and exhaustion which is partly driven by HIV-1 associated microbial translocation.

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Functional network connectivity has been widely acknowledged to characterize brain functions, which can be regarded as "brain fingerprinting" to identify an individual from a pool of subjects. Both common and unique information has been shown to exist in the connectomes across individuals. However, very little is known about whether and how this information can be used to predict the individual variability of the brain.

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This cohort study analyzes sequence variants in the genome of SARS-CoV-2 using viral RNA samples taken from 7 women at a long-term care facility.

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A growing literature suggests a relationship between HIV-infection and a molecular profile of age acceleration. However, despite the widely known high prevalence of HIV-related brain atrophy and HIV-associated neurocognitive disorder (HAND), epigenetic age acceleration has not been linked to HIV-related changes in structural MRI. We applied morphological MRI methods to study the brain structure of 110 virally suppressed participants with HIV infection and 122 uninfected controls age 22-72.

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The Contributions of Clinical Pharmacology to HIV Cure Research.

Clin Pharmacol Ther

August 2021

Department of Pharmacology and Experimental Neuroscience, UNMC, Omaha, Nebraska, USA.

Combination antiretroviral therapy (ART) can suppress plasma HIV-RNA to < 50 copies/mL, decrease HIV transmission, reduce mortality, and improve quality of life for people living with HIV. ART cannot, however, eliminate HIV from an infected individual. The primary barrier to cure HIV infection is the multiple reservoir sites, including adipose tissue, bone marrow, central nervous system, liver, lungs, male and female reproductive system, secondary lymph nodes, and gut-associated lymphoid tissue, established 1 to 2 weeks after acquisition of HIV.

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