The insecticidal toxin complex (Tc) proteins are produced by several insect-associated bacteria, including Yersinia enterocolitica strain W22703, which oscillates between two distinct pathogenicity phases in invertebrates and humans. The mechanism by which this high-molecular-weight toxin is released into the extracellular surrounding, however, has not been deciphered. In this study, we investigated the regulation and functionality of a phage-related holin/endolysin (HE) cassette located within the insecticidal pathogenicity island Tc-PAI of W22703.
View Article and Find Full Text PDFA 70-year-old male patient was admitted to our dermatology outpatient clinic with newly developed personality changes and signs of hypoxemia. His anti-p200 Pemphigoid was treated with Dapsone for a few weeks. Due to generalized tonic-clonic seizure with a subsequent Glasgow Coma Scale of 5 points and a peripheral oxygen saturation not exceeding 88% under conditions of high-flow nasal cannula, he was intubated by the emergency team and transferred to the intensive care unit.
View Article and Find Full Text PDFThe genus comprises pathogens that can adapt to an environmental life cycle stage as well as to mammals. strain W22703 exhibits both insecticidal and nematocidal activity conferred by the tripartite toxin complex (Tc) that is encoded on the 19-kb pathogenicity island Tc-PAI All genes follow a strict temperature regulation in that they are silenced at 37°C but activated at lower temperatures. Four highly conserved phage-related genes, located within the Tc-PAI , were recently demonstrated to encode a biologically functional holin-endolysin gene cassette that lyses its own host W22703 at 37°C.
View Article and Find Full Text PDFFront Cell Infect Microbiol
September 2019
The genus comprises 19 species of which three are known as human and animal pathogens. Some species display toxicity toward invertebrates using the so-called toxin complex (TC) and/or determinants that are not yet known. Recent studies showed a remarkable variability of insecticidal activities when representatives of different species (spp.
View Article and Find Full Text PDFis a pathogen that causes gastroenteritis in humans. Because of its low-temperature-dependent insecticidal activity, it can oscillate between invertebrates and mammals as host organisms. The insecticidal activity of strain W22703 is associated with a pathogenicity island of 19 kb (Tc-PAI ), which carries regulators and genes encoding the toxin complex (Tc).
View Article and Find Full Text PDFCatheter-associated urinary tract infection (CAUTI) is a common and costly healthcare-associated infection, yet measuring it accurately is challenging and resource-intensive. Electronic surveillance promises to make this task more objective and efficient in an era of new financial and regulatory imperatives, but previous surveillance approaches have used a simplified version of the definition. We applied a complete definition, including subjective elements identified through natural language processing of clinical notes.
View Article and Find Full Text PDFBackground: Postoperative surgical site infections (SSI) are common and costly. Most occur post discharge, and can result in potentially preventable readmission or unnecessary urgent evaluation. Mobile health approaches incorporating patient-generated wound photos are being implemented in an attempt to optimize triage and management.
View Article and Find Full Text PDFBackground: Surgical site infection (SSI) remains a common, costly, and morbid health care-associated infection. Early detection can improve outcomes, yet previous risk models consider only baseline risk factors (BF) not incorporating a proximate and timely data source-the wound itself. We hypothesize that incorporation of daily wound assessment improves the accuracy of SSI identification compared with traditional BF alone.
View Article and Find Full Text PDFObjective: The proposed Meaningful Use Stage 3 recommendations require healthcare providers to accept patient-generated health data (PGHD) by 2017. Yet, we know little about the tensions that arise in supporting the needs of both patients and providers in this context. We sought to examine these tensions when designing a novel, patient-centered technology - mobile Post-Operative Wound Evaluator (mPOWEr) - that uses PGHD for post-discharge surgical wound monitoring.
View Article and Find Full Text PDFBackground And Aims: Whole-body PET with Ga-DOTA-D-Phe-Tyr-octreotide (Ga-DOTATOC) and contrast-enhanced CT (ceCT) are considered a standard for the staging of neuroendocrine tumors (NETs). This study sought to verify whether early dynamic (ed) Ga-DOTATOC PET/CT can reliably detect liver metastases of NETs (hypervascular, nonhypervascular; positive or negative for somatostatin receptors) and to verify if the receptor positivity has a significant impact on the detection of tumor hypervascularization.
Methods: Twenty-seven patients with NET were studied by ceCT and standard whole-body PET according to established Ga-DOTATOC protocols.
Objective: Deep tissue injury (DTI) is caused by prolonged mechanical loading that disrupts blood flow and metabolic clearance. A patient simulator that mimics the biomechanical aspects of DTI initiation, stress and strain in deep muscle tissue, would be potentially useful as a training tool for pressure-relief techniques and testing platform for pressure-mitigating products. As a step toward this goal, this study evaluates the ability of silicone materials to mimic the distribution of stress in muscle tissue under concentrated loading.
View Article and Find Full Text PDFBackground: Post-discharge surgical site infections (SSI) are a major source of morbidity, expense and anxiety for patients. However, patient perceptions about barriers experienced while seeking care for post-discharge SSI have not been assessed in depth. We explored patient experience of SSI and openness to a mobile health (mHealth) wound monitoring "app" as a novel solution to address this problem.
View Article and Find Full Text PDFPurpose: We applied a novel diffusion spectrum imaging (DSI) acquisition to determine associations between aging and subcortical fiber tract integrity.
Materials And Methods: We studied 35 cognitively healthy subjects (17 women), spanning the adult age range between 23 and 77 years, using anatomical MRI and a novel DSI acquisition scheme at 3 Tesla. The study was approved by the local institutional review board.
Horm Res Paediatr
December 2014
Objectives: Long-term clinical follow-up and mutation analysis were performed in 27 Chinese congenital hyperinsulinism patients.
Method: 27 hypoglycemia patients were diagnosed with CHI within 2 years of age. The long-term clinical outcome was analyzed and mutation analysis of 5 hyperinsulinism candidate genes was performed.
AMIA Annu Symp Proc
September 2015
Many current mobile health applications ("apps") and most previous research have been directed at management of chronic illnesses. However, little is known about patient preferences and design considerations for apps intended to help in a post-acute setting. Our team is developing an mHealth platform to engage patients in wound tracking to identify and manage surgical site infections (SSI) after hospital discharge.
View Article and Find Full Text PDFUnlabelled: This prospective longitudinal study on gastric carcinoma patients with gastrectomy was designed to answer the question about changes in several determinants of the quality of life (QL) at various times before and after surgery and to obtain evidence for specific approaches of therapeutic intervention.
Methods And Patients: 36 patients were given a questionnaire structured according to Eypasch et al. (self- assessment) before surgery, at discharge from the hospital, and after 3 and 6 months.
Hepatocyte growth factor (HGF) has unique morphogenic activity for several cell types. Besides its major effect upon liver regeneration, its motogenic activity to enhance motility has not been verified for smooth muscles. Therefore we evaluated the impact of HGF in an in-vitro model of human gallbladder motility.
View Article and Find Full Text PDFEur J Gastroenterol Hepatol
October 1999
Objective: The aim of this study was to determine the role of nitric oxide (NO), as the primary neurotransmitter of non-adrenergic, non-cholinergic (NANC) innervation, in stone-diseased and stone-free human gallbladders.
Methods: Human gallbladder muscle strips were mounted in modified Krebs-Henseleit solution with atropine (1 mM), guanethidine sulfate (5 mM) and aerated with Carbogen. Electric field stimulation (EFS) (70 V, 0.
The liver is an ideal organ for ultrasonography. In this context, intrahepatic structures allow the identification of segments according to Couinaud by ultrasonography. This article describes, step by step, the ultrasonographic segmental anatomy of the liver.
View Article and Find Full Text PDFJaundice in critically ill patients may be difficult to explain. This study analyzes pathophysiologically relevant data, and discusses the prognostic value of hyperbilirubinemia. A total of 1275 patients were prospectively enrolled; 7.
View Article and Find Full Text PDFBackground/aim: This study addresses cholecystokinin (CCK)-receptor alterations in stone-diseased and stone-free human gallbladders using different CCK-fragments.
Methods: Serosa-free muscle strips were mounted in a modified Krebs-Henseleit-solution of 37 degrees C and aerated with carbogen. The following concentrations of CCK-fragments (CCK 26-33, N-Acetyl CCK 27-33 sulf.