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https://www.readbyqxmd.com/read/29793136/effects-of-gestational-hypertension-and-pre-eclampsia-in-mrna-expression-of-fibrinolysis-genes-in-primary-cultured-human-umbilical-vein-endothelial-cells
#1
Irais Poblete-Naredo, Yury Rodríguez-Yáñez, Rogelio O Corona-Núñez, Stuart González-Monroy, Juan E Salinas, Arnulfo Albores
Hypertension disorders (HD) and pre-eclampsia (PRE) are leading causes of maternal deaths worldwide. PRE is associated with vascular endothelial dysfunction and with deregulation of the fibrinolysis pathway genes. Fibrinolysis is the fibrin clot hydrolysis process catalyzed by plasmin, a proteolytic enzyme formed from plasminogen. Plasminogen is cleaved by tissue-type (tPA) and urokinase-type (uPA) activators and inhibited by the plasminogen activator inhibitors type-1 (PAI-1) and type-2 (PAI-2). The whole process maintains blood hemostasis...
May 17, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29792849/the-role-and-mechanism-of-k-ca-3-1-channels-in-human-monocyte-migration-induced-by-palmitic-acid
#2
Xiao-Zhen Ma, Zheng-Da Pang, Jun-Hong Wang, Zheng Song, Li-Mei Zhao, Xiao-Jun Du, Xiu-Ling Deng
Monocyte migration into diseased tissues contributes to the pathogenesis of diseases. Intermediate-conductance Ca2+ -activated K+ (KCa 3.1) channels play an important role in cell migration. However, the role of KCa 3.1 channels in mediating monocyte migration induced by palmitic acid (PA) is still unclear. Using cultured THP-1 cells and peripheral blood mononuclear cells from healthy subjects, we investigated the role and signaling mechanisms of KCa 3.1 channels in mediating the migration induced by PA. Using methods of Western blotting analysis, RNA interference, cell migration assay and ELISA, we found that PA-treated monocytes exhibited increment of the protein levels of KCa 3...
May 21, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29792190/novel-insights-into-neuroinflammation-bacterial-lipopolysaccharide-tumor-necrosis-factor-%C3%AE-and-ureaplasma-species-differentially-modulate-atypical-chemokine-receptor-3-responses-in-human-brain-microvascular-endothelial-cells
#3
Christine Silwedel, Christian P Speer, Axel Haarmann, Markus Fehrholz, Heike Claus, Mathias Buttmann, Kirsten Glaser
BACKGROUND: Atypical chemokine receptor 3 (ACKR3, synonym CXCR7) is increasingly considered relevant in neuroinflammatory conditions, in which its upregulation contributes to compromised endothelial barrier function and may ultimately allow inflammatory brain injury. While an impact of ACKR3 has been recognized in several neurological autoimmune diseases, neuroinflammation may also result from infectious agents, including Ureaplasma species (spp.). Although commonly regarded as commensals of the adult urogenital tract, Ureaplasma spp...
May 23, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29792103/prolonged-use-of-antibiotics-after-birth-is-associated-with-increased-morbidity-in-preterm-infants-with-negative-cultures
#4
C Fajardo, B Alshaikh, A Harabor
BACKGROUND: Most preterm infants are exposed to a variable duration of antibiotic therapy after birth despite negative cultures. Data is emerging about the risks of prolonged antibiotics. We sought to assess the association between length of initial antibiotic course and neonatal outcomes in a cohort from a single large perinatal centre. METHODS: Retrospective cohort study of prospectively collected data on all infants with a birth weight of less than 1250 g hospitalized in our NICU in a 4-year window and who had negative blood and CSF cultures in the first 2 days of life...
May 23, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29791315/incidence-of-early-onset-sepsis-in-infants-born-to-women-with-clinical-chorioamnionitis
#5
Tara M Randis, Madeline Murguia Rice, Leslie Myatt, Alan T N Tita, Kenneth J Leveno, Uma M Reddy, Michael W Varner, John M Thorp, Brian M Mercer, Mara J Dinsmoor, Susan M Ramin, Marshall W Carpenter, Philip Samuels, Anthony Sciscione, Jorge E Tolosa, George Saade, Yoram Sorokin
OBJECTIVE: To determine the frequency of sepsis and other adverse neonatal outcomes in women with a clinical diagnosis of chorioamnionitis. METHODS: We performed a secondary analysis of a multi-center placebo-controlled trial of vitamins C/E to prevent preeclampsia in low risk nulliparous women. Clinical chorioamnionitis was defined as either the "clinical diagnosis" of chorioamnionitis or antibiotic administration during labor because of an elevated temperature or uterine tenderness in the absence of another cause...
May 23, 2018: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/29790925/effectiveness-of-13-valent-pneumococcal-conjugate-vaccine-against-hospitalization-for-community-acquired-pneumonia-in-older-us-adults-a-test-negative-design
#6
John M McLaughlin, Qin Jiang, Raul E Isturiz, Heather L Sings, David L Swerdlow, Bradford D Gessner, Ruth M Carrico, Paula Peyrani, Timothy L Wiemken, William A Mattingly, Julio A Ramirez, Luis Jodar
Background: Following universal recommendation for use of 13-valent pneumococcal conjugate vaccine (PCV13) in US adults aged ≥65 years in September 2014, we conducted the first real-world evaluation of PCV13 vaccine effectiveness (VE) against hospitalized vaccine-type community-acquired pneumonia (CAP) in this population. Methods: Using a test-negative design, we identified cases and controls from a population-based surveillance study of adults in Louisville, Kentucky, who were hospitalized with CAP...
May 21, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29790810/a-review-of-novel-technologies-and-techniques-associated-with-identification-of-bloodstream-infection-aetiologies-and-rapid-antimicrobial-genotypic-and-quantitative-phenotypic-determination
#7
Stephen Poole, Stephen P Kidd, Kordo Saeed
Introduction The antimicrobial aspect of management of patients with blood stream infections (BSI) and sepsis is time critical. In an era of increasing antimicrobial resistance, rapid detection and identification of bacteria with antimicrobial susceptibility is crucial to direct therapy early in the course of illness. Molecular techniques offer a potential solution to this. Areas covered In the present review the authors have discussed a number of novel solutions utilising a variety of molecular techniques for pathogen detection, identification and antimicrobial susceptibility...
May 23, 2018: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29790424/the-fate-of-autologous-endometrial-mesenchymal-stromal-cells-after-application-in-the-healthy-equine-uterus
#8
Elisabeth Rink, Teresa Beyer, Hilari French, Elaine Watson, Christine Aurich, Xavier Donadeu
Because of their distinct differentiation, immunomodulatory and migratory capacities, endometrial mesenchymal stromal cells (MSCs) may provide an optimum source of therapeutic cells not only in relation to the uterus but also for regeneration of other tissues. This study reports the fate of endometrial MSCs following intrauterine application in mares. Stromal cell fractions were isolated from endometrial biopsies taken from seven reproductively healthy mares, expanded and fluorescence-labeled in culture. MSCs (15 x 106) or PBS were autologously infused into each uterine horn during early diestrus and subsequently tracked by fluorescence microscopy and flow cytometry of endometrial biopsies and blood samples taken periodically after infusion...
May 23, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29789661/a-correlative-and-quantitative-imaging-approach-enabling-characterization-of-primary-cell-cell-communication-case-of-human-cd4-t-cell-macrophage-immunological-synapses
#9
Richard Kasprowicz, Emma Rand, Peter J O'Toole, Nathalie Signoret
Cell-to-cell communication engages signaling and spatiotemporal reorganization events driven by highly context-dependent and dynamic intercellular interactions, which are difficult to capture within heterogeneous primary cell cultures. Here, we present a straightforward correlative imaging approach utilizing commonly available instrumentation to sample large numbers of cell-cell interaction events, allowing qualitative and quantitative characterization of rare functioning cell-conjugates based on calcium signals...
May 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29789652/small-hypoxia-primed-mesenchymal-stem-cells-attenuate-graft-versus-host-disease
#10
YongHwan Kim, Hye Jin Jin, Jinbeom Heo, Hyein Ju, Hye-Yeon Lee, Sujin Kim, Seungun Lee, Jisun Lim, Sang Young Jeong, JiHye Kwon, Miyeon Kim, Soo Jin Choi, Wonil Oh, Yoon Sun Yang, Hyun Ho Hwang, Hwan Yeul Yu, Chae-Min Ryu, Hong Bae Jeon, Dong-Myung Shin
Mesenchymal stem cells (MSCs) are of particular interest for the treatment of immune-related diseases due to their immunosuppressive capacity. Here, we show that Small MSCs primed with Hypoxia and Calcium ions (SHC-MSCs) exhibit enhanced stemness and immunomodulatory functions for treating allogeneic conflicts. Compared with naïve cultured human umbilical cord blood-derived MSCs, SHC-MSCs were resistant to passage-dependent senescence mediated via the monocyte chemoattractant protein-1 and p53/p21 cascade and secreted large amounts of pro-angiogenic and immunomodulatory factors, resulting in suppression of T-cell proliferation...
May 22, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29788980/treatment-of-ventriculoperitoneal-shunt-infection-and-ventriculitis-caused-by-acinetobacter-baumannii-a-case-report
#11
Gebre Teklemariam Demoz, Minyahil Alebachew, Yirga Legesse, Belete Ayalneh
BACKGROUND: Acinetobacter baumannii (A. baumannii) infections are a recognized problem in healthcare, causing ventriculoperitoneal shunt infection and ventriculitis. Such infections are serious intracranial infection that can lead to serious complication and death. Treatment of infection caused by A. baumannii becomes difficult because of its inclination to develop pandrug resistance to the universally used antibiotics. In this case, we focused on pediatric ventriculitis/shunt infection caused by A...
May 23, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29787890/invasive-mold-disease-in-hematologic-patients-comparison-between-fusariosis-and-aspergillosis
#12
Fabio Nucci, Simone A Nouér, Domenico Capone, Marcio Nucci
OBJECTIVES: To compare the epidemiology, clinical presentation, diagnosis, treatment and outcome of hematologic patients with invasive aspergillosis (IA) or invasive fusariosis (IF). METHODS: We retrospectively reviewed the charts of 36 patients with IA and 26 with IF diagnosed between 2006 and 2017 in hematologic patients, and compared baseline characteristics, coexisting exposures, clinical manifestations, treatment and the outcome. RESULTS: Fever was more frequent in IF (96...
May 19, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29787889/diagnosis-of-bloodstream-infections-from-positive-blood-cultures-and-directly-from-blood-samples-recent-developments-in-molecular-approaches
#13
REVIEW
Nilay Peker, Natacha Couto, Bhanu Sinha, John W Rossen
BACKGROUND: Bloodstream infections are a major cause of death with increasing incidence and severity. Blood cultures are still the gold standard for microbiological diagnosis, but are rather slow. Molecular methods can be used as add-on complementary assays. They can be useful to speed up microbial identification and to predict antimicrobial susceptibility, applied to direct blood samples or positive blood cultures. AIM: To review recent developments in molecular based diagnostic platforms used for the identification of bloodstream infections, with a focus on assays performed directly on blood samples and positive blood cultures...
May 19, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29787713/interferon-gamma-release-assay-performance-in-northeastern-brazil-influence-of-the-ifng-874-a-t-polymorphism
#14
Valdirene Leão Carneiro, Maria Teresita Bendicho, Rosalina Guedes Santos, Marilda Casela, Eduardo M Netto, Scarlet Torres Moraes Mota, Iza Cristina Araújo Pina, Roberto Meyer Nascimento, Songeli Menezes Freire, Theolis Barbosa
INTRODUCTION: Latent tuberculosis infection diagnosis based on the release of interferon-gamma in cultures of peripheral blood cells stimulated with Mycobacterium tuberculosis antigens has replaced the tuberculin skin test in many countries with low tuberculosis prevalence. The IFN-γ production can be influenced by genetic polymorphisms, of which the IFNG+874 (rs62559044) locus is the most studied. We investigated the possible influence of the IFNG+874 A/T polymorphism on interferon-gamma test performance...
May 19, 2018: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29787635/abnormal-bone-remodeling-activity-of-dental-follicle-cells-from-a-cleidocranial-dysplasia-patient
#15
Yang Liu, Xianli Zhang, Xiangyu Sun, Xiaozhe Wang, Chenying Zhang, Shuguo Zheng
OBJECTIVES: To explore the role of dental follicle cells (DFCs) with a novel cleidocranial dysplasia (CCD) causative gene RUNX2 mutation (DFCsRUNX 2+/m ) in delayed permanent tooth eruption. MATERIALS AND METHODS: A CCD patient with typical clinical features was involved in this study. DFCsRUNX 2+/m were cultured and DNA was extracted for RUNX2 mutation screening. Measurements of cell proliferation, alkaline phosphatase (ALP) activity, alizarin red staining and osteoblast-specific genes expression were performed to assess osteogenesis of DFCsRUNX 2+/m ...
May 22, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29787340/correlation-between-thyroidal-and-peripheral-blood-total-t-cells-cd8-t-cells-and-cd8-t-regulatory-cells-and-t-cell-reactivity-to-calsequestrin-and-collagen-xiii-in-patients-with-graves-ophthalmopathy
#16
Farah Al-Ansari, Hooshang Lahooti, Leanne Stokes, Senarath Edirimanne, Jack Wall
Purpose/aim of the study: Graves' ophthalmopathy (GO) is closely related to the thyroid autoimmune disorder Graves' disease. Previous studies have suggested roles for thyroidal CD8+  T cells and autoimmunity against calsequestrin-1 (CASQ)-1 in the link between thyroidal and orbital autoimmune reactions in GO. A role for autoimmunity against CollXIII has also been suggested. In this study, we aimed to investigate correlations between some thyroidal and peripheral blood T-cell subsets and thyroidal T-cell reactivity against CASQ1 and CollXIII in patients with GO...
May 22, 2018: Endocrine Research
https://www.readbyqxmd.com/read/29786783/a-xenograft-model-for-venous-malformation
#17
Jillian Goines, Xian Li, Yuqi Cai, Paula Mobberley-Schuman, Megan Metcalf, Steven J Fishman, Denise M Adams, Adrienne M Hammill, Elisa Boscolo
Vascular malformations are defects caused by the abnormal growth of the vasculature. Among them, venous malformation (VM) is an anomaly characterized by slow-flow vascular lesions with abnormally shaped veins, typically in sponge-like configuration. VMs can expand over years causing disfigurement, obstruction of vital structures, thrombosis, bleeding, and pain. Treatments have been very limited and primarily based on supportive care, compression garments, sclerotherapy, and/or surgical resection. Sirolimus treatment has recently shown efficacy in some patients with complicated vascular anomalies, including VMs...
May 21, 2018: Angiogenesis
https://www.readbyqxmd.com/read/29786145/pilot-study-demonstrates-that-placental-histology-can-provide-an-additional-tool-for-diagnosing-early-onset-neonatal-sepsis
#18
J M A Ykema, E J D'Haens, M Havenith, J van Eyck, R A van Lingen, M A C Hemels
AIM: We explored whether placental histology could help to diagnose early-onset neonatal sepsis (EONS), guide clinical decision-making 48 hours after birth and reduce antibiotic use. METHODS: This study comprised 109 infants born at less than 32 weeks of gestation, who were admitted to the neonatal intensive care unit of Isala, Zwolle, The Netherlands, between January 2013 and December 2013. EONS was defined as clinical symptoms plus raised serial C-reactive protein >10 mg/L and a positive (proven EONS) or a negative (suspected EONS) blood culture...
May 22, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29786109/engulfment-of-platelets-delays-endothelial-cell-aging-via-girdin-and-its-phosphorylation
#19
Yong Lan, Yongjun Li, Dajun Li, Peng Li, Jiyang Wang, Yongpeng Diao, Guodong Ye, Yangfang Li
Endothelial cells are critical in angiogenesis and maintain the homeostasis of the blood‑brain barrier (BBB). Platelets (PLTs) are essential in vascular biology, including angiogenesis. The present study aimed to investigate the effect of PLTs on the aging of endothelial cells. Human brain microvascular endothelial cells (HBMECs) and human astrocytes were co‑cultured to mimic the BBB. Transmission electron microscopy was used to observe the engulfment of PLTs. Confocal microscopy was used to observe the co‑localization of PLTs, girders of actin filament (girdin) and phosphorylated (p‑)girdin...
May 17, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786104/correlation-between-the-expression-of-il%C3%A2-18-and-deep-venous-thrombosis
#20
Guangdi Li, Rudan Zhou, Xueling Zhao, Riguang Liu, Chuan Ye
The present study aimed to investigate the effect of the expression of interleukin (IL)‑18 and related markers on deep venous thrombosis (DVT) to examine their correlation. Sprague‑Dawley rats of different models were established and were randomly assigned into three groups. The expression of IL‑18, nuclear factor (NF)‑κB and von Willebrand factor (vWF) were detected in blood samples. The inferior vena cava (IVC) was ligated to establish the DVT model. Rat IL‑18 overexpression and inhibition vectors were constructed...
May 16, 2018: International Journal of Molecular Medicine
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