171 results match your criteria: "Center II[Affiliation]"

A family of magnesium and calcium salen-derivatives was synthesized and characterized for use as subterranean fluid flow monitors. For the Mg complexes, di- n-butyl magnesium ([Mg(Bu )]) was reacted with N, N'-ethylene bis(salicylideneimine) (H-salen), N, N'-bis(salicylidene)-1,2-phenylenediamine (H-saloPh), N, N'-bis(3,5-di- t-butylsalicylidene)-ethylenediamine (H-salo-Bu ), or N, N'-bis(3,5-di- t-butylsalicylidene)-1,2-phenylenediamine (H-saloPh-Bu ), and the products were identified by single-crystal X-ray diffraction as [(κ-(O,N,N'),μ-(O')saloPh)(μ-(O),(κ-(N,N'),μ-(O')saloPh)(μ-(O),κ-(N,N',O')saloPh')Mg]·2tol (1·2tol; saloPh' = an alkyl-modified saloPh derivative generated in situ), [(κ-(O,N,N',O')saloPh)Mg(py)]·py (2·py), [(κ-(O,N,N',O')salo-Bu )Mg(py)] (3), [(κ-(O,N,N',O')saloPh-Bu )Mg(py)]·tol (4·tol), and [(κ-(O,N,N'),μ-(O')saloPh-Bu )Mg] (5), where tol = toluene; py = pyridine. For the Ca species, a calcium amide was independently reacted with H-salo-Bu and H-saloPh-Bu to generate the crystallographcially characterized compounds: [(κ-(O,N,N',O')salo-Bu )Ca(py)] (6), [(κ-(O,N,N',O')saloPh-Bu )Ca(py)]·py (7·py).

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The Argentinian author Silvina Ocampo (1903-1993) left us a vast body of works which are considered outstanding in many ways. In 1960, she published a short story, entitled "El médico encantador" (The Charming Physician), in the renowned literary magazine Sur. The central character of this piece is a family doctor named Albino Morgan, who had a secret truth: in any house he visited, all variety of disease also entered.

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Background: Prosopis cineraria (L.) Druce ('khejri') is an important tree that occurs worldwide in arid regions. It has been mentioned in the Indian Ayurvedic system of medicines as having several clinical properties.

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Conventional and Advanced Imaging of Spine Oncologic Disease, Nonoperative Post-treatment Effects, and Unique Spinal Conditions.

Neurosurgery

January 2018

Department of Neurosurgery, University of Southern California, Keck School of Medicine, Healthcare Consultation Center II, Los Angeles California.

In this review, we discuss the imaging features of diseases and conditions ranging from neoplastic to nonoperative post-treatment effects to unique conditions of the spine. Additionally, advanced imaging may increase diagnostic certainty in cases where conventional imaging characteristics of benign lesions and malignant pathology are variable.

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Toll-Like Receptor 2 Is a Regulator of Circadian Active and Inactive State Consolidation in C57BL/6 Mice.

Front Aging Neurosci

July 2017

Division of Geriatrics, Department of Internal Medicine, Durham Research Center II, University of Nebraska Medical CenterOmaha, NE, United States.

Article Synopsis
  • Tlr2, a receptor that recognizes pathogens, plays an important role in regulating behavioral arousal by influencing activity patterns in mice, particularly affecting their circadian rhythms.
  • Tlr2 knockout mice showed longer but fewer active and inactive states during their light and dark cycles, indicating a consolidation of behavior.
  • As the mice aged, some differences in behavior lessened, but they still demonstrated less variability in their daily feeding, drinking, and movement, suggesting Tlr2 might help facilitate transitions between active and inactive states.
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Functional roles of p120ctn family of proteins in central neurons.

Semin Cell Dev Biol

September 2017

Developmental Neuroscience, Munroe-Meyer Institute, Durham Research Center II, Room 3031, University of Nebraska Medical Center, 985960 Nebraska Medical Center, Omaha, NE 68198-5960, United States. Electronic address:

The cadherin-catenin complex in central neurons is associated with a variety of cytosolic partners, collectively called catenins. The p120ctn members are a family of catenins that are distinct from the more ubiquitously expressed α- and β-catenins. It is becoming increasingly clear that the functional roles of the p120ctn family of catenins in central neurons extend well beyond their functional roles in non-neuronal cells in partnering with cadherin to regulate adhesion.

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The present article investigates the possibility of using nonlinear resonance ultrasound spectroscopy to determine the acoustic nonlinearity parameter (β) and third order elastic constant by developing an inverse problem. A theoretical framework was developed for nonlinear forced vibration of a cantilever beam using material nonlinearity (stress-strain nonlinearity). The resulting nonlinear equation was solved using method of multiple time scales to obtain the nonlinear frequency shifts.

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Flow diversion is a novel treatment for brain aneurysms that works by redirecting blood flow away from the aneurysm. Immediately after placement of the stent, blood flow stagnates within the aneurysm dome and it undergoes thrombosis. Over time, a new endothelium develops across the neck, thereby reconstructing the parent vessel and curing the aneurysm.

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Chronic hepatitis E virus (HEV) infection may occur in immunocompromised patients. Previous studies report that different immunosuppressive agents interfere with viral replication. However, the role of TNFα in HEV infection is currently unknown.

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Mechanisms of Benefit with Aspirin Therapy in Aspirin-Exacerbated Respiratory Disease.

Immunol Allergy Clin North Am

November 2016

Division of Allergy and Immunology, National Jewish Health, University of Colorado, 1400 Jackson Street, K624, Denver, CO 80206, USA. Electronic address:

Aspirin-exacerbated respiratory disease (AERD) is a clinical syndrome characterized by severe persistent asthma, hyperplastic eosinophilic sinusitis with nasal polyps, and an intolerance to aspirin and other NSAIDs that preferentially inhibit COX-1. For more than 30 years, aspirin desensitization has proven to be of significant long-term benefit in carefully selected patients with AERD. Despite this, the exact mechanisms behind the therapeutic effects of aspirin desensitization remain poorly understood.

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We describe age-related molecular and neuronal changes that disrupt mobility or energy balance based on brain region and genetic background. Compared to young mice, aged C57BL/6 mice exhibit marked locomotor (but not energy balance) impairments. In contrast, aged BALB mice exhibit marked energy balance (but not locomotor) impairments.

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Background: Variable chemotherapy exposure may cause toxicity or lack of efficacy. This study was initiated to validate pharmacokinetically (PK)-guided paclitaxel dosing in patients with advanced non-small-cell lung cancer (NSCLC) to avoid supra- or subtherapeutic exposure.

Patients And Methods: Patients with newly diagnosed, advanced NSCLC were randomly assigned to receive up to 6 cycles of 3-weekly carboplatin AUC 6 or cisplatin 80 mg/m(2) either with standard paclitaxel at 200 mg/m(2) (arm A) or PK-guided dosing of paclitaxel (arm B).

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Chronic and complex full-thickness wounds have become increasingly prevalent. Besides autologous skin transplantation, innovative wound dressing products have gained interest, as the functional and esthetic outcome is still limited. In this respect, the effect of a novel modifiable collagen-gelatin fleece on the healing of deep dermal wounds was examined and compared with untreated controls and Matriderm(®).

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Apigenin inhibits UVA-induced cytotoxicity in vitro and prevents signs of skin aging in vivo.

Int J Mol Med

August 2016

Korea Institute for Skin and Clinical Sciences, Konkuk University, Seoul 143-701, Republic of Korea.

Apigenin (4',5,7-trihydroxyflavone) is a flavone that has been reported to have anti-inflammatory, antioxidant and anti-carcinogenic properties. In this study, we investigated the protective effects of apigenin on skin and found that, in experiments using cells, apigenin restored the viability of normal human dermal fibroblasts (nHDFs), which had been decreased by exposure to ultraviolet (UV) radiation in the UVA range. Using a senescence-associated (SA)-β-gal assay, we also demonstrate that apigenin protects against the UVA-induced senescence of nHDFs.

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Background: In order to provide effective care to patients suffering from chronic pain secondary to neurological diseases, health professionals must appraise the role of the psychosocial factors in the genesis and maintenance of this condition whilst considering how emotions and cognitions influence the course of treatment. Furthermore, it is important not only to recognize the psychological reactions to pain that are common to the various conditions, but also to evaluate how these syndromes differ with regards to the psychological factors that may be involved. As an extensive evaluation of these factors is still lacking, the Italian Consensus Conference on Pain in Neurorehabilitation (ICCPN) aimed to collate the evidence available across these topics.

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Background: It is increasingly recognized that treating pain is crucial for effective care within neurological rehabilitation in the setting of the neurological rehabilitation. The Italian Consensus Conference on Pain in Neurorehabilitation was constituted with the purpose identifying best practices for us in this context. Along with drug therapies and physical interventions, psychological treatments have been proven to be some of the most valuable tools that can be used within a multidisciplinary approach for fostering a reduction in pain intensity.

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The Health Impact of Upward Mobility: Does Socioeconomic Attainment Make Youth More Vulnerable to Stressful Circumstances?

J Youth Adolesc

February 2016

103 Family Science Center I, Department of Human Development and Family Science, University of Georgia, Athens, GA, USA.

Previous research has documented that adolescent stressful life experiences have a long-term detrimental influence on cardio-metabolic disease risk. While studies have focused on either the moderating or mediating effects of youth socioeconomic competence, drawing from a life course perspective, we estimate these mediating and moderating effects simultaneously within a single analytical framework. The study used a nationally representative sample of 11,271 adolescents (53 % female) over 13 years.

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Low income Hispanic families experience multiple barriers to accessing evidence-based information on Autism Spectrum Disorders (ASD). This study utilized a mixed-strategy intervention to create access to information in published bio-medical research articles on ASD by distilling the content into parent-friendly English- and Spanish-language ASD Science Briefs and presenting them to participants using two socially-oriented dissemination methods. There was a main effect for short-term knowledge gains associated with the Science Briefs but no effect for the dissemination method.

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Background: The relevance of the temporal relationship between a unipolar electrogram (UEGM) and a bipolar electrogram (BEGM) in determining the site of origin (SOO) of focal arrhythmias has been largely demonstrated.

Objective: We sought to demonstrate that a negative concordance in the initial forces of these EGMs is also helpful in predicting the SOO of premature ventricular contractions (PVCs).

Methods: Mapping and radiofrequency (RF) ablation were performed in 41 patients with symptomatic PVCs in the absence of structural heart disease.

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Microglia are resident mononuclear phagocytes within the CNS parenchyma that intimately interact with neurons and astrocytes to remodel synapses and extracellular matrix. We briefly review studies elucidating the molecular pathways that underlie microglial surveillance, activation, chemotaxis, and phagocytosis; we additionally place these studies in a clinical context. We describe and validate an inexpensive and simple approach to obtain enriched single cell suspensions of quiescent parenchymal and perivascular microglia from the mouse cerebellum and hypothalamus.

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The regulatory interaction of EVI1 with the TCL1A oncogene impacts cell survival and clinical outcome in CLL.

Leukemia

October 2015

Department I of Internal Medicine, Center for Integrated Oncology Cologne-Bonn, and Excellence Cluster for Cellular Stress Response in Aging-Associated Diseases, University of Cologne, Cologne, Germany.

Dysregulated T-cell leukemia/lymphoma-1A (TCL1A), a modulator in B-cell receptor (BCR) signaling, is causally implicated in chronic lymphocytic leukemia (CLL). However, the mechanisms of the perturbed TCL1A regulation are largely unknown. To characterize TCL1A-upstream networks, we functionally screened for TCL1A-repressive micro-RNAs (miRs) and their transcriptional regulators.

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Article Synopsis
  • Efficient nonviral gene delivery systems are limited by a lack of understanding of the specific molecules involved in transfection.
  • Researchers used polyplexes with 25-kDa polyethylenimine and plasmids encoding GFP to test transfection efficiency in HEK 293T cells, tracking gene expression changes over time.
  • Key differentially expressed genes were identified at various time points, with some genes showing unique expression patterns in polyplexes versus lipoplexes, suggesting potential targets for enhancing gene delivery methods.
  • Overall, the findings indicate that certain genes and pharmacological agents can be explored to improve transfection systems, while considering the distinct dependencies of polyplexes and lipoplexes.
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Article Synopsis
  • Efficient nonviral gene delivery systems face challenges due to limited understanding of the molecules involved in DNA transfer.
  • In experiments with HEK 293T cells using lipoplexes and plasmid encoding GFP, researchers identified key genes with altered expression after treatment, highlighting the roles of specific genes in the transfection process.
  • The study suggests that manipulating the expression of genes like RAP1A, PACSIN3, and HSPA6 could enhance transgene production, providing potential targets for improving nonviral gene delivery methods.
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Tandem Duplication of Exons 1-7 Neither Impairs ATP7A Expression Nor Causes a Menkes Disease Phenotype.

JIMD Rep

March 2015

Section on Translational Neuroscience, Molecular Medicine Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Porter Neuroscience Research Center II, National Institutes of Health, Building 35, Room 2D-971, 35A Convent Drive, MSC 3754, Bethesda, MD, 20892-3754, USA.

ATP7A duplications are estimated to represent the molecular cause of Menkes disease in 4-10% of affected patients. We identified a novel duplication of ATP7A exons 1-7 discovered in the context of a challenging prenatal diagnostic situation. All other reported ATP7A duplications (n = 24) involved intragenic tandem duplications, predicted to disrupt the normal translational reading frame and produce nonfunctional ATP7A proteins.

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