Outcomes of Patients with Gastrointestinal Stromal Tumors in the Past Decade.

Background: Gastrointestinal stromal tumors (GISTs) are rare mesenchymal neoplasms of the gastrointestinal tract (GIT) that represent approximately 1 to 2 percent of primary gastrointestinal (GI) cancers. Owing to their rarity, very little is known about their overall epidemiology, and the prognostic factors of their pathology. The current study aimed to evaluate the independent determinants of mortality in patients diagnosed with GISTs over the past decade.

Proportion of thyroid cancer and other cancers in the democratic republic of Congo.

Background: Cancer diagnosis is increasing around the world and in the Democratic Republic of the Congo (DRC). The proportion of thyroid cancer has increased over the past three decades. There are very few studies on cancer epidemiology, and in particular on thyroid cancer in the DRC.

New Perspectives on Long COVID Syndrome: The Development of Unusually Delayed and Recurring Pericarditis After a Primary SARS-CoV-2 Infection.

Since the start of the COVID-19 pandemic in early 2020, pericarditis has been identified as a COVID-19 complication. We report a case where the development of pericarditis was unusually delayed after the initial COVID infection. The reported onset of pericarditis and pericardial effusion is anywhere from a few days to a few months after infection.

Tuning the Catalytic Activity of a Metal-Organic Framework Derived Copper and Nitrogen Co-Doped Carbon Composite for Oxygen Reduction Reaction.

An efficient non-noble metal catalyst for the oxygen reduction reaction (ORR) is of great importance for the fabrication of cost-effective fuel cells. Nitrogen-doped carbons with various transition metal co-dopants have emerged as attractive candidates to replace the expensive platinum catalysts. Here we report the preparation of various copper- and nitrogen-doped carbon materials as highly efficient ORR catalysts by pyrolyzing porphyrin based metal organic frameworks and investigate the effects of air impurities during the thermal carbonization process.

Integrated Care and the Evolution of the Multidisciplinary Team.

The primary care medical home continues to adapt by applying new research to population health approaches to care. With the discovery that life experiences trigger a chain of biologic events linked to chronic illnesses, the role of patient-centered multidisciplinary care teams becomes of paramount importance. Subsequently, mental health professionals are being incorporated into the primary care setting, using their skills in nontraditional models to customize care for each patient.

Beginning the Work of Integration: An Investigation of Primary Care Physicians' Attitudes Toward Psychiatry.

Objective: The authors sought to better understand the attitudes of primary care physicians toward psychiatrists in order to assess their receptivity for further psychiatric education.

Methods: A survey about attitudes toward psychiatrists in comparison to other specialties was distributed among four family medicine residency programs at Southern Illinois University.

Results: Respondents rated psychiatry lower than other specialties in the areas measured.

Kaposi's Sarcoma-Associated Herpesvirus Viral Interferon Regulatory Factor 4 (vIRF4) Perturbs the G1-S Cell Cycle Progression via Deregulation of the cyclin D1 Gene.

Kaposi's sarcoma-associated herpesvirus (KSHV) infection modulates the host cell cycle to create an environment optimal for its viral-DNA replication during the lytic life cycle. We report here that KSHV vIRF4 targets the β-catenin/CBP cofactor and blocks its occupancy on the cyclin D1 promoter, suppressing the G1-S cell cycle progression and enhancing KSHV replication. This shows that KSHV vIRF4 suppresses host G1-S transition, possibly providing an intracellular milieu favorable for its replication.

Use of ranolazine in the prevention and treatment of postoperative atrial fibrillation in patients undergoing cardiac surgery.

Objective: To determine the evidence for use of ranolazine for treatment and prevention of postoperative atrial fibrillation (POAF) in patients undergoing cardiac surgery.

Data Sources: A literature search of MEDLINE (1946 to January 2014) was conducted, using the search terms ranolazine, atrial fibrillation, and cardiac surgery. A search of reference citations was conducted to identify additional references.

Kaposi's sarcoma-associated herpesvirus viral interferon regulatory factor 4 (vIRF4) targets expression of cellular IRF4 and the Myc gene to facilitate lytic replication.

Besides an essential transcriptional factor for B cell development and function, cellular interferon regulatory factor 4 (c-IRF4) directly regulates expression of the c-Myc gene, which is not only associated with various B cell lymphomas but also required for herpesvirus latency and pathogenesis. Kaposi's sarcoma-associated herpesvirus (KSHV), the etiological agent of Kaposi's sarcoma and primary effusion lymphoma, has developed a unique mechanism to deregulate host antiviral innate immunity and growth control by incorporating four viral homologs (vIRF1 to -4) of cellular IRFs into its genome. Previous studies have shown that several KSHV latent proteins, including vIRF3, vFLIP, and LANA, target the expression, function, and stability of c-Myc to establish and maintain viral latency.

MR imaging quantitative analysis of fetal Chiari II malformations and associated open neural tube defects: balanced SSFP versus half-Fourier RARE and interobserver reliability.

Purpose: To evaluate bSSFP (balanced steady state free precession) and half-Fourier RARE (rapid acceleration with relaxation enhancement) MRI sequences in their ability to demonstrate fetal anatomic landmarks, quantify the degree of cerebellar herniation in Chiari II malformations and level and length of the associated open neural tube defects, as well as evaluate interobserver reliability of these measurements.

Materials And Methods: Two independent observers retrospectively reviewed MRIs of 37 fetuses with Chiari II malformations and associated open neural tube defects (mean gestational age: 27 weeks 2 days). Comparison of bSSFP and RARE included: (i) Ability to confidently identify anatomic landmarks of the posterior fossa and spine; (ii) Measurements of the foramen magnum, cerebellar tonsillar herniation length, intervertebral disc space level of tonsillar herniation, open neural tube defect length, and disc space start and end level of the open neural tube defect; (iii) Observed conspicuity of anatomic landmarks.

Bilateral inhibition of HAUSP deubiquitinase by a viral interferon regulatory factor protein.

Herpesvirus-associated ubiquitin-specific protease (HAUSP) regulates the stability of p53 and the p53-binding protein MDM2, implicating HAUSP as a therapeutic target for tuning p53-mediated antitumor activity. Here we report the structural analysis of HAUSP with Kaposi's sarcoma-associated herpesvirus viral interferon (IFN) regulatory factor 4 (vIRF4) and the discovery of two vIRF4-derived peptides, vif1 and vif2, as potent and selective HAUSP antagonists. This analysis reveals a bilateral belt-type interaction that results in inhibition of HAUSP.

When autophagy meets viruses: a double-edged sword with functions in defense and offense.

Autophagy is a ubiquitous catabolic process that ensures organism's well-being by sequestering a wide array of undesired intracellular constituents into double-membrane vesicles termed autophagosomes for lysosomal degradation. Interest in autophagy research has recently gained momentum as it is increasingly being recognized to play fundamental roles in diverse aspects of human pathophysiology including virus infection and its subsequent complications. This review discusses recent advances in autophagy studies with respect to virus infection and pathogenesis.

Immune evasion by Kaposi's sarcoma-associated herpesvirus.

Persistent viral infections are often associated with serious diseases, primarily by altering functions of the host immune system. The hallmark of Kaposi's sarcoma-associated herpesvirus (KSHV) infection is the establishment of a life-long persistent infection, which leads to several clinical, epidemiological and infectious diseases, such as Kaposi's sarcoma, a plasmablastic variant of multicentric Castleman's disease, and primary effusion lymphoma. To sustain an efficient life-long persistency, KSHV dedicates a large portion of its genome to encoding immunomodulatory proteins that antagonize the immune system of its host.

Epigenetic analysis of KSHV latent and lytic genomes.

Epigenetic modifications of the herpesviral genome play a key role in the transcriptional control of latent and lytic genes during a productive viral lifecycle. In this study, we describe for the first time a comprehensive genome-wide ChIP-on-Chip analysis of the chromatin associated with the Kaposi's sarcoma-associated herpesvirus (KSHV) genome during latency and lytic reactivation. Depending on the gene expression class, different combinations of activating [acetylated H3 (AcH3) and H3K4me3] and repressive [H3K9me3 and H3K27me3] histone modifications are associated with the viral latent genome, which changes upon reactivation in a manner that is correlated with their expression.

An objective structured clinical examination to evaluate health historian competencies.

Background: Post-donation information events in the blood-collection process account for the majority of errors reported to the FDA. An eight-station objective structured clinical examination (OSCE) based on information reported after donation was developed as a competency examination for health historians.

Study Design And Methods: The OSCE measured two individual skill components: history-taking technique (HXE) and ability to record and interpret a medical history (HXI).