9,405 results match your criteria: "Medical College of Virginia.[Affiliation]"

Understanding health beliefs is important to facilitate health promotion and disease prevention as they influence health behaviors, outcomes, and disease management. Given the rise of hypertension-related diseases in the Dominican Republic, the purpose of our study was to identify hypertension-related health beliefs of Dominicans in order to inform the development of culturally appropriate interventions for hypertension prevention, care, and treatment. Semi-structured interviews were conducted with 20 Dominicans, 15 of whom were receiving treatment for hypertension.

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Rationale: Oleoyl glycine, a little studied fatty acid amide similar in structure to anandamide, interferes with nicotine addiction in mice and acute naloxone-precipitated morphine withdrawal (MWD) in rats. Because endogenous oleoyl glycine is subject to rapid enzymatic deactivation, we evaluated the potential of more stable analogs to interfere with opiate withdrawal.

Objectives: The potential of monomethylated oleoyl glycine (oleoyl alanine, HU595) to interfere with somatic and aversive effects of acute naloxone-precipitated MWD, its duration, and mechanism of action was assessed in male Sprague Dawley rats.

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Background: At least one-third of HIV-1-afflicted individuals experience peripheral neuropathy. Although the underlying mechanisms are not known, they may involve neurotoxic HIV-1 proteins.

Methods: We assessed the influence of the neurotoxic HIV-1 regulatory protein, Tat, on inflammatory and neuropathic nociceptive behaviours using transgenic male and female mice that conditionally expressed (or did not express) HIV-1 Tat in fibrillary acidic protein-expressing glia in the central and peripheral nervous systems.

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Kappa opioid receptors mediate an initial aversive component of paclitaxel-induced neuropathy.

Psychopharmacology (Berl)

September 2020

Department of Pharmacology and Toxicology, Virginia Commonwealth University, Medical College of Virginia Campus, Box 980613, Richmond, VA, 23298-0613, USA.

Rationale: Cancer patients receiving the antineoplastic drug paclitaxel report higher incidences and longer duration of treatment-resistant depression than patients receiving other classes of chemotherapeutics. Rodents treated with paclitaxel exhibit a suite of changes in affect-like behaviors. Further, paclitaxel causes chemotherapy-induced peripheral neuropathy (CIPN) in humans and rodents.

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The Development of Kraepelin's Concept of Dementia Praecox: A Close Reading of Relevant Texts.

JAMA Psychiatry

November 2020

Medical College of Virginia, Virginia Institute of Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond.

In 1893 and 1896, in his fourth and fifth textbook editions, Emil Kraepelin brought together 3 syndromes to form the first and second of his 2 prequels to dementia praecox (DP), a definitive version of which he would propose in his 1899 sixth textbook edition. These syndromes, which would become hebephrenic DP, catatonic DP, and paranoid DP, each had distinct histories. Hebephrenic DP was derived from syndromes first proposed by Hecker, and catatonic DP was derived from syndromes first proposed by Kahlbaum, and then both were substantially revised.

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While the roots of mania and melancholia can be traced to the 18th century and earlier, we have no such long historical narrative for dementia praecox (DP). I, here, provide part of that history, beginning with Kraepelin's chapter on Verrücktheit for his 1883 first edition textbook, which, over the ensuing 5 editions, evolved into Kraepelin's mature concepts of paranoia and paranoid DP. That chapter had 5 references published from 1865 to 1879 when delusional-hallucinatory syndromes in Germany were largely understood as secondary syndromes arising from prior episodes of melancholia and mania in the course of a unitary psychosis.

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Nicotine, the primary psychoactive component in tobacco, plays a major role in the initiation and maintenance of tobacco dependence and addiction, a leading cause of preventable death worldwide. An essential need thus exists for more effective pharmacotherapies for nicotine-use cessation. Previous reports suggest that pharmacological and genetic blockade of CB1 receptors attenuate nicotine reinforcement and reward; while exogenous agonists enhanced these abuse-related behaviors.

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IGFBP-3/IGFBP-3 Receptor System as an Anti-Tumor and Anti-Metastatic Signaling in Cancer.

Cells

May 2020

Department of Pathology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA 23298, USA.

Insulin-like growth factor binding protein-3 (IGFBP-3) is a p53 tumor suppressor-regulated protein and a major carrier for IGFs in circulation. Among six high-affinity IGFBPs, which are IGFBP-1 through 6, IGFBP-3 is the most extensively investigated IGFBP species with respect to its IGF/IGF-I receptor (IGF-IR)-independent biological actions beyond its endocrine/paracrine/autocrine role in modulating IGF action in cancer. Disruption of IGFBP-3 at transcriptional and post-translational levels has been implicated in the pathophysiology of many different types of cancer including breast, prostate, and lung cancer.

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We aimed to evaluate the timing, operative details, and outcomes of total knee arthroplasty (TKA) in patients with prior ligamentous knee surgery (LKS). All consecutive patients undergoing TKA with prior LKS at a single institution were identified from a large prospectively collected database. Patients were matched on a 2:1 basis according to age, sex, and body mass index to a group of patients without previous LKS undergoing primary TKA.

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Although the rise of operationalized diagnostic criteria and the creation of DSM-III were influenced in the USA by a neo-Kraepelinian 'revival' of interest in psychiatric nosology, Kraepelin was only a distal influence on the specific diagnostic criteria proposed. The historical origins of the DSM-III criteria for mania and major depression (MD) are traceable back to the 1950s and contain no direct link to Kraepelin's writings. George Dreyfus, a student and assistant to Kraepelin, authored in 1907 a monograph on Involutional Melancholia which reviewed cases seen by Kraepelin in Heidelberg.

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Purpose: To compare longitudinal hepatic proton density fat fraction (PDFF) changes estimated by magnitude- vs. complex-based chemical-shift-encoded MRI during a weight loss surgery (WLS) program in severely obese adults with biopsy-proven nonalcoholic fatty liver disease (NAFLD).

Methods: This was a secondary analysis of a prospective dual-center longitudinal study of 54 adults (44 women; mean age 52 years; range 27-70 years) with obesity, biopsy-proven NAFLD, and baseline PDFF ≥ 5%, enrolled in a WLS program.

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An integrin-binding array platform identifies αβ and αβ integrins on rat primary cortical neurons to support their survival and growth.

J Neurosci Methods

June 2020

Department of Anatomy and Neurobiology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA, 23298, USA. Electronic address:

Background: Integrins are the major cell adhesion receptors expressed in almost all cell types connecting the extracellular matrix with cell cytoskeletons and transducing bi-directional signals across cell membranes. In the central nervous system (CNS), integrins are pivotal for CNS cell migration, differentiation, neurite outgrowth and synaptogenesis in both physiological and pathological conditions. Here we studied the effect of different integrin biding peptides for growth and development of primary cortical neurons in vitro.

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The Effect of Immediate Versus Delayed Port Access on 30-Day Infection Rate.

J Infus Nurs

February 2021

Milton S. Hershey Medical Center, Penn State College of Medicine, Penn State Health Heart and Vascular Institute, CV Interventional Radiology, Hershey, Pennsylvania (Drs Tancredi, Kissane, Lynch, and Waybill); Milton S. Hershey Medical Center, Department of Public Health Sciences, Penn State Clinical and Transitional Science Institute, Hershey, Pennsylvania (Drs Li and Kong).

This study compared the 30-day infection risk of chest ports accessed on the same day as placement and chest ports with delayed initial access. The aim was to evaluate a larger data set that provided evidence for the development of port access guidelines. A retrospective chart review of 3322 chest port placement procedures performed between October 15, 2003, and June 10, 2015, was conducted at the interventional radiology department of a single institution.

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The DSM-5 proposal for attenuated psychosis syndrome: a history.

Psychol Med

April 2020

Virginia Institute for Psychiatry and Behavioral Genetics and Departments of Psychiatry, and Human Genetics, Medical College of Virginia of Virginia Commonwealth University, Richmond, VA, USA.

This article narrates a consensus history of the proposal to include diagnostic criteria for a psychosis risk syndrome in the DSM-5, in part, to document what happened, but also to potentially help focus future efforts at clinically useful early detection. The purpose of diagnosing a risk state would be to slow and ideally prevent the development of the full disorder. Concerns about diagnosing a psychosis risk state included a high false positive rate, potentially harmful use of anti-psychotic medication with people who would not transition to psychosis, and stigmatization.

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DNA methylation and histone acetylation changes to cytochrome P450 2E1 regulation in normal aging and impact on rates of drug metabolism in the liver.

Geroscience

June 2020

Department of Pharmacotherapy and Outcomes Science, School of Pharmacy, Virginia Commonwealth University, Smith Building, 410 North 12th Street, Medical College of Virginia Campus, Richmond, VA, 23298-0533, USA.

Aging is associated with reduced liver function that may increase the risk for adverse drug reactions in older adults. We hypothesized that age-related changes to epigenetic regulation of genes involved in drug metabolism may contribute to this effect. We reviewed published epigenome-wide studies of human blood and identified the cytochrome P450 2E1 (CYP2E1) gene as a top locus exhibiting epigenetic changes with age.

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Recent Developments Are Changing Extensor Tendon Management.

Plast Reconstr Surg

March 2020

From the Division of Plastic Surgery, Virginia Commonwealth University/Medical College of Virginia; Department of Plastic Surgery, University of Virginia; Division of Plastic Surgery, Queen Elizabeth II Health Sciences Center; and Dalhousie University.

Article Synopsis
  • The article discusses the benefits of starting early protected movement (3-5 days post-surgery) with relative motion splinting for zone 5 extensor tendon lacerations in the hand.
  • It emphasizes that patients can resume normal activities much sooner than the typical 3-4 weeks of splinting after tendon repair.
  • The article also highlights advancements in treating boutonniere deformities and improves overall rehabilitation strategies using relative motion splinting and a unique surgical approach with local anesthesia.
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The fate of myofibroblasts during the development of fibrosis in Crohn's disease.

J Dig Dis

June 2020

Department of Internal Medicine, Division of Gastroenterology, Hepatology and Nutrition, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, Virginia.

Intestinal fibrosis is a devastating complication in patients with inflammatory bowel disease. Its characteristics include the loss of regular peristalsis and nutrition absorption, excessive deposition of extracellular matrix (ECM) components, thickness of intestinal lumen due to the formation of strictures and of scar tissue. As a major cell type involved in fibrogenesis, the myofibroblasts have already been shown to have a plastic and heterogeneous function in producing abundant collagen, fibronectin and connective tissue growth factor.

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Article Synopsis
  • The U.S. Preventive Services Task Force (USPSTF) aims to enhance clinical guidelines with an evidence-based approach, refining its methods over time.
  • It focuses on significant health conditions where effective preventive services are available and prioritizes the most relevant questions and evidence for recommendations.
  • The Task Force evaluates admissible evidence through three strata and assigns grades (good, fair, poor) based on quality and relevance to ensure reliable connections between preventive services and health outcomes.
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Background & Aims: Steatohepatitis drives fibrogenesis in alcohol-related liver disease. Recent studies have suggested that hepatic stellate cells (HSCs) may regulate the parenchymal cell injury and inflammation that precedes liver fibrosis, although the mechanism remains incompletely defined. Neuropilin-1 (NRP-1) and synectin are membrane proteins implicated in HSC activation.

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An Algorithmic Approach to the Management of Shoulder Instability.

J Am Acad Orthop Surg Glob Res Rev

December 2019

Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA (Mr. White); VCU Health, Medical College of Virginia at Virginia Commonwealth University, Richmond, VA (Dr. Patel); and The Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA (Mr. Hadley and Dr. Dodson).

The recurrence of anterior shoulder instability can be as high as 86.7% in high-risk patients who are treated nonoperatively after their first incident of instability. CT and MR arthrography are necessary for preoperative imaging and assessment of glenoid bone loss.

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Does Comanagement of Patients With Hip Fracture Influence 30-Day Outcomes.

Geriatr Orthop Surg Rehabil

January 2020

Department of Orthopaedic Surgery, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA, USA.

Introduction: Comanagement of hip fractures is thought to optimize outcomes for these high-risk patients, but this practice is not universal. We aimed to determine whether comanagement of patients with hip fracture affects 30-day outcomes.

Methods: The American College of Surgeons National Surgical Quality Improvement Program database was queried for all hip fractures between January 2015 and January 2017, totaling 15 461 patients (144 hospitals).

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The origin of our modern concept of mania in texts from 1780 to 1900.

Mol Psychiatry

September 2020

Virginia Institute of Psychiatric and Behavioral Genetics, and Department of Psychiatry, Medical College of Virginia/Virginia Commonwealth University, Richmond, VA, USA.

The development of the modern concept of mania is explored by a review and analysis of 28 psychiatric texts in English, French, and German published in Western Europe and North America from 1780 to 1900. From 1780 until the 1820s, mania was consistently viewed as a disorder of reasoning/judgment manifest by total insanity and/or the state of undifferentiated fury. For the next 30 years, the consensus shifted, and mania was understood to be largely a disorder of elevated mood.

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Background: Endoplasmic reticulum (ER) stress is an essential response of epithelial and immune cells to inflammation in Crohn's disease. The presence and mechanisms that might regulate the ER stress response in subepithelial myofibroblasts (SEMFs) and its role in the development of fibrosis in patients with Crohn's disease have not been examined.

Methods: Subepithelial myofibroblasts were isolated from the affected ileum and normal ileum of patients with each Montreal phenotype of Crohn's disease and from normal ileum in non-Crohn's subjects.

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Protective Effects of -Oleoylglycine in a Mouse Model of Mild Traumatic Brain Injury.

ACS Chem Neurosci

April 2020

National Research Council, Institute of Biomolecular Chemistry, Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli, Naples, Italy.

Traumatic brain injury (TBI) is one of the main causes of death in young people for which currently no efficacious treatment exists. Recently, we have reported that mice with mild-TBI with a specific injury in the insula showed elevated levels of a little investigated -acyl amino acid, -oleoylglycine (OlGly). -acyl amino acids have recently experienced an increased interest because of their important biological activities.

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: Contrast-induced nephropathy is a known complication that can occur after intravascular administration of iodinated contrast medium. Its consequences can range from a mild worsening of the renal function to renal failure requiring renal replacement therapy. There is no known effective treatment for contrast-induced nephropathy, and thus, efforts have focused on its prevention.

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