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Gen Kano, Bruce S Bochner, Nives Zimmermann
RATIONALE: Siglec-8 is a surface receptor predominantly expressed on human eosinophils where its ligation induces reactive oxygen species (ROS) formation and cell death. Since Siglec-8 has intracellular tyrosine-based motifs, we hypothesized that Src family kinases (SFKs) are involved in ROS formation and cell death induced by Siglec-8 engagement. METHODS: Human peripheral blood eosinophils were purified and incubated with anti-Siglec-8 monoclonal antibodies (mAb, agonist), IL-5, and SFK pharmacological inhibitors...
September 20, 2016: Immunobiology
John J Mercuri, Neil E Okey, Raj J Karia, Richard H Gross, Joseph D Zuckerman
INTRODUCTION: To date, no study has reported on the public's opinion of orthopaedic resident duty-hour requirements (DHR). METHODS: A survey was administered to people in orthopaedic waiting rooms and at three senior centers. Responses were analyzed to evaluate seven domains: knowledge of duty hours; opinions about duty hours; attitudes regarding shift work; patient safety concerns; and the effects of DHRs on continuity of care, on resident training, and on resident professionalism...
September 22, 2016: Journal of the American Academy of Orthopaedic Surgeons
Fumiyoshi Tsunoda, Stefania Lamon-Fava, Katalin V Horvath, Ernst J Schaefer, Bela F Asztalos
BACKGROUND: Population studies have shown an inverse association between high-density lipoprotein (HDL) cholesterol levels and risk of coronary heart disease (CHD). HDL has different functions, including the ability to protect biological molecules from oxidation. Our aim was to evaluate the performance of two fluorescence-based assays in assessing the antioxidative capacity of HDL. METHODS: We compared the antioxidative capacity of HDL with the phospholipid 2',7'-dichlorodihydrofluorescein (DCF) assay and the dihydrorhodamine 123 (DHR) assay in controls and in subjects at increased risk of CHD, including subjects with established CHD, and subjects with elevated plasma triglycerides (TG), serum amyloid A (SAA), or myeloperoxidase (MPO) levels...
2016: Lipids in Health and Disease
Yermis Carolina Rocha, Juan Álvaro López, Julio Cesar Orrego, Yadira Coll, Amado Karduss, Sergio Rosenzweig, José Luis Franco
INTRODUCTION: Chronic granulomatous disease is a primary immunodeficiency that results from mutations in proteins of the NADPH oxidase system that affect the microbicidal activity of phagocytes. Immune reconstitution by hematopoietic stem cell transplantation is currently the only curative therapy for this disease.  OBJECTIVE: To describe the clinical and molecular characterization of a patient with X-linked chronic granulomatous disease and the successful immune reconstitution by means of a hematopoietic stem cell transplantation...
2016: Biomédica: Revista del Instituto Nacional de Salud
Mona-Rita Yacoub, Alvise Berti, Corrado Campochiaro, Enrico Tombetti, Giuseppe Alvise Ramirez, Andrea Nico, Elisabetta Di Leo, Paola Fantini, Maria Grazia Sabbadini, Eustachio Nettis, Giselda Colombo
Drug induced exfoliative dermatitis (ED) are a group of rare and severe drug hypersensitivity reactions (DHR) involving skin and usually occurring from days to several weeks after drug exposure. Erythema multiforme (EM), Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are the main clinical presentations of drug induced ED. Overall, T cells are the central player of these immune-mediated drug reactions. Here we provide a systematic review on frequency, risk factors, pathogenesis, clinical features and management of patients with drug induced ED...
2016: Clinical and Molecular Allergy: CMA
Jonathon Thorp, Melissa Dattalo, Khalil G Ghanem, Colleen Christmas
BACKGROUND: Training programs have implemented the 2011 ACGME duty hour regulations (DHR) using "workload compression" (WLC) strategies, attempting to fit similar clinical responsibilities into fewer working hours, or workload reduction (WLR) approaches, reducing the number of patient encounters per trainee. Many have expressed concern that these strategies could negatively impact patient care and learner outcomes. OBJECTIVE: This study evaluates the medical knowledge and clinical impact of a WLR intervention in a single institution...
August 11, 2016: Journal of General Internal Medicine
Xia Guo, Shi-You Chen
Dedicator of cytokinesis 2 (DOCK2) is a CDM family protein containing DOCK homology region (DHR) -1 and DHR-2, Src-homology 3 (SH3) domain, and C-terminal polybasic amino acid cluster. The CDM family consists of 11 mammalian members and is classified into four subfamilies, the DOCK-A, -B, -C, and -D. DOCK2 is a member of DOCK-A subfamily and an atypical guanine exchange factor regulating the loading of GTP to activate Rac. It is primarily found in peripheral blood, spleen, and thymus and mainly expressed in lymphocytes and macrophages of various organs...
August 9, 2016: Journal of Cellular Physiology
María E Cabrillana, Pamela Uribe, Juana V Villegas, Juan Álvarez, Raúl Sánchez, Miguel W Fornés
UNLABELLED: Peroxynitrite is a highly reactive nitrogen species and when it is generated at high levels it causes nitrosative stress, an important cause of impaired sperm function. High levels of peroxynitrite have been shown to correlate with decreased semen quality in infertile men. Thiol groups in sperm are mainly found in enzymes, antioxidant molecules, and structural proteins in the axoneme. Peroxynitrite primarily reacts with thiol groups of cysteine-containing proteins. Although it is well known that peroxynitrite oxidizes sulfhydryl groups in sperm, the subcellular localization of this oxidation remains unknown...
October 2016: Systems Biology in Reproductive Medicine
S Mizuno, I Morii, Y Tsuchiya, K Goto
The present study examined the effects of wearing a lower-body compression garment (CG) after endurance exercise on recovery of physiological function. 18 males were divided into 2 experiments, the downhill running (n=10, DHR) experiments and the level running (n=8, LR) experiments. Subjects performed 30 min of DHR (gradient: - 10%) or LR (gradient: 0%) at 70% of  ˙VO2max with either wearing a CG (CG trial) or normal garment (CON trial) for 24 h after running. Changes in jump performance (counter movement jump; CMJ, rebound jump; RJ, drop jump; DJ), subjective feelings, circumferences of leg, and blood variables (creatine kinase, myoglobin, interleukin-6, high-sensitivity C-reactive protein) were evaluated before exercise, immediately after exercise, 1, 3 and 24 h following exercise...
October 2016: International Journal of Sports Medicine
Alexander V Barrantes-González, Ana E Jiménez-Rocha, Juan José Romero-Zuñiga, Gaby Dolz
A cross-sectional study combining different serological and molecular techniques for the detection of Ehrlichia species in dogs and their ticks was carried out with data from all regions of Costa Rica. A seroprevalence of 32.1% (131/408), and infection with E. canis of 3.2% (13/407) was found, whereas 6.9% (9/130) of ticks attached to the dogs were PCR positive to E. canis. Higher prevalences were found outside the Greater Metropolitan Area (GMA). Risk factors associated with E. canis seropositivity were age, between 2 and 7 years (RR: 1...
October 2016: Ticks and Tick-borne Diseases
Yu-lin Chen, Shuang-ying Gui, Xin Liang, Sheng-mei Wang, Xiao-jing Jiang
Phytantriol (PT), ethanol (ET) and water were used to prepare in situ cubic liquid crystal (ISV2). The pseudo-ternary phase diagram of PT-ET-water was constructed and isotropic solution formulations were chosen for further optimization. The physicochemical properties of isotropic solution formulations were evaluated to optimize the composition of ISV2. In situ hexagonal liquid crystals (ISH2) were prepared based on the composition of ISV2 with the addition of vitamin E acetate (VitEA) and the amount of VitEA was optimized by in vitro release behavior...
January 2016: Yao Xue Xue Bao, Acta Pharmaceutica Sinica
Martin Reindl, Sebastian Johannes Reinstadler, Hans-Josef Feistritzer, Christina Tiller, Agnes Mayr, Gert Klug, Bernhard Metzler
BACKGROUND: Discharge heart rate (HR) following ST-elevation myocardial infarction (STEMI) is a predictor of adverse left ventricular remodelling (LVR). However, the prognostic relevance of HR values in the earlier phase after revascularization is unknown. We aimed to investigate resting HR assessed at different time points during hospital stay following STEMI for the prediction of LVR. METHODS: In this prospective observational study of 143 consecutive STEMI patients, HR was measured serially on admission (AHR), at day 1 (HRd1) and 2 (HRd2) following revascularization and finally at discharge (DHR)...
September 15, 2016: International Journal of Cardiology
Katrine Gahre Fjeld, Hilde Eide, Morten Mowe, Lene Hystad Hove, Tiril Willumsen
AIMS AND OBJECTIVES: To develop and test the Dental Hygiene Registration (DHR), a dental hygiene assessment scale for nurses working in institutions. BACKGROUND: Removal of dental plaque is a key factor in preventing oral health related diseases. A simple, but reliable dental hygiene assessment scale that enables nurses to monitor residents' dental hygiene on a daily basis, will improve monitoring oral hygiene status and quality of dental health care. DESIGN: Descriptive study on the development and evaluation of a dental hygiene registration instrument...
June 21, 2016: Journal of Clinical Nursing
Xue Jiang, Jingwen Yang, Zhangfei Shen, Yajie Chen, Liangen Shi, Naiming Zhou
Diapause is a developmental strategy adopted by insects to survive in challenging environments such as the low temperatures of a winter. This unique process is regulated by diapause hormone (DH), which is a neuropeptide hormone that induces egg diapause in Bombyx mori and is involved in terminating pupal diapause in heliothis moths. An G protein-coupled receptor from the silkworm, B. mori, has been identified as a specific cell surface receptor for DH. However, the detailed information on the DH-DHR system and its mechanism(s) involved in the induction of embryonic diapause remains unknown...
August 2016: Insect Biochemistry and Molecular Biology
Elisa F D Canetti, J Keane, C P McLellan, A B Gray
PURPOSE: Compare capillary and venous blood in the analysis of concentration and function of leucocyte sub-populations. This study hypothesised that capillary samples may be used in a site-specific manner as an alternative source of blood samples for assays of leucocyte concentration and neutrophilic phagocytic function and reactive oxygen species (ROS) production, allowing acquisition of multiple samples to better monitor transient but significant post-exercise immune modulation. METHODS: Resting blood samples were simultaneously obtained from vein, finger and earlobe of healthy subjects (n = 10, age: 25...
August 2016: European Journal of Applied Physiology
Wei Yann Haw, Marta E Polak, Carolann McGuire, Michel Erlewyn-Lajeunesse, Michael R Ardern-Jones
BACKGROUND: Previous reports have demonstrated the utility of T-cell proliferation and cytokine release assays as in vitro diagnostic tests for drug causation in drug hypersensitivity reactions (DHR). However, data from pediatric populations are scarce compared with data in adults. OBJECTIVE: To compare the lymphocyte proliferation assay (LPA) with combination cytokine assays in the pediatric population and to identify its potential use in the acute and postrecovery phases...
July 2016: Annals of Allergy, Asthma & Immunology
Philip J Vernon, Ruth Madelaine Paredes, Amanda J Sooter, Leasha J Schaub, Heather M Grossman, Anthony E Pusateri, Jacob J Glaser, Forest R Sheppard
BACKGROUND: Neutrophilic inflammation is a mediator of morbidity and mortality in response to hemorrhagic shock. Although injury-induced neutrophil margination has long been observed, the nature of neutrophils' role in the "second hit" paradigm remains to be fully elucidated. We sought to extensively characterize neutrophil phenotype and functionality in response to severe hemorrhage in non-human primates (NHPs). METHODS: NHPs (n = 8) were subjected to severe hemorrhagic shock and resuscitation...
September 2016: Shock
Kaja Eriksson, Lena Nise, Anna Kats, Elin Luttropp, Anca Irinel Catrina, Johan Askling, Leif Jansson, Lars Alfredsson, Lars Klareskog, Karin Lundberg, Tülay Yucel-Lindberg
INTRODUCTION: The possible hypothesis of a link between periodontitis and rheumatoid arthritis (RA), specifically anti-citrullinated protein antibody (ACPA) positive RA, prompted us to investigate the prevalence of periodontitis in the Swedish Epidemiological Investigation of RA (EIRA), a well-characterised population-based RA case-control cohort. METHODS: Periodontal status of 2,740 RA cases and 3,942 matched controls was retrieved through linking EIRA with the National Dental Health Registry (DHR), where dental diagnostic- and treatment codes on the adult Swedish population have been registered...
2016: PloS One
Q H Zhou, D R Liu, Y Wang, W J Ying, Y H Yu, J Y Wang, X Y Hui, J Q Sun, J Hou, W J Wang, X C Wang
OBJECTIVE: To evaluate the methods of flow cytometric-dihydrorhodamine 123 (DHR) analysis, gp91 protein detection, gene mutation analysis for the precise diagnosis of chronic granulomatous disease (CGD). METHOD: Clinical and laboratory data of patients with CGD confirmed by gene mutation analysis from 2008 to 2015 in Children's Hospital of Fudan University were retrospectively reviewed.The results of respiratory burst, gp91 protein level, and gene mutations were analyzed...
May 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
Carlen Reyes, Anton Pottegård, Peter Schwarz, M Kassim Javaid, Tjeerd P Van Staa, Cyrus Cooper, Adolfo Diez-Perez, Bo Abrahamsen, Daniel Prieto-Alhambra
We aimed to characterize incident users of alendronate from Denmark and Spain, and investigate their eligibility for participation in the pivotal Fracture Intervention Trial (FIT). This is an international cross-sectional study, where the data were obtained from the SIDIAP database (Sistema d'Informació per al Desenvolupament de l'Investigació en Atenció Primària) from Catalonia (Spain) and the Danish Health Registries (DHR). This study included patients who were incident users of alendronate, ≥40 years old with no history of Paget's disease...
September 2016: Calcified Tissue International
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