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HAI infection

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https://www.readbyqxmd.com/read/28632831/-antiseptics-and-disinfectants-aiming-at-rational-use-recommendations-of-the-advisory-committee-on-healthcare-associated-infections-sociedad-chilena-de-infectolog%C3%A3-a
#1
Alexis Diomedi, Eiiana Chacón, Luis Delpiano, Beatrice Hervé, M Irene Jemenao, Myriam Medel, Marcela Quintanilla, Gisela Riedel, Javier Tinoco, Marcela Cifuentes
Proper use of antiseptics and disinfectants, is an essential tool to prevent the spread of infectious agents and to control of healthcare-associated infections (HAI). Given the increasing importance of environmental aspects, as well as several advances and updates in the field of its proper use at local and intemational level, the SOCHINF HAI Advisory Committee considers that it is necessary to develop a guide for the rational use of antiseptics and disinfectants, which it will provide consistent scientific basis with that purpose...
April 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28630070/regulation-of-type-iii-secretion-of-translocon-and-effector-proteins-by-the-esab-esal-esam-complex-in-edwardsiella-tarda
#2
Lu Yi Liu, Pin Nie, Hong Bing Yu, Hai Xia Xie
The type III secretion system (T3SS) plays a crucial role in the pathogenesis of many Gram-negative bacteria, including Edwardsiella tarda, an important fish pathogen. Within the E. tarda T3SS, there are three proteins (EsaB/EsaL/EsaM) that are homologous to proteins present in many other bacteria, including SpiC/SsaL/SsaM in Salmonella, SepD/SepL/CesL in EPEC and EHEC, and YscB/YopN/SycN in Yersinia EsaL was found to interact with both EsaB and EsaM within the bacterial cell, as revealed by a co-immunoprecipitation assay...
June 19, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28624584/antibody-dependent-nk-cell-degranulation-as-a-marker-for-assessing-antibody-dependent-cytotoxicity-against-pandemic-2009-influenza-a-h1n1-infection-in-human-plasma-and-influenza-vaccinated-transchromosomic-bovine-intravenous-immunoglobulin-therapy
#3
Brian J Morrison, Jessica A Roman, Thomas C Luke, Nishith Nagabhushana, Kanakatte Raviprakash, Maya Williams, Peifang Sun
This study describes an antibody-dependent NK cell degranulation assay, as a biomarker to assess antibody-dependent cellular cytotoxicity (ADCC) response in influenza plasma and for antibody therapies against influenza infection. The concentration of neutralizing antibodies (NAbs) against the hemagglutinin receptor of influenza viruses is a current determinant in protection against infection, particularly following receipt of the seasonal influenza vaccine. However, this is a limited assessment of protection, because: (i) NAb titers that incur full protection vary; and (ii) NAb titers do not account for the entire breadth of antibody responses against viral infection...
June 15, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28624470/molecular-cloning-and-expression-analysis-of-ccl25-and-its-receptor-ccr9s-from-epinephelus-coioides-post-cryptocaryon-irritans-infection
#4
Man Yang, Ling Zhou, Hai-Qing Wang, Xiao-Chun Luo, Xue-Ming Dan, Yan-Wei Li
Among other functions, CCL25/CCR9 has an important role in regulating the trafficking of developing T cells in the thymus, and in homing memory T cells to the small intestine. The function of this chemokine-receptor complex is not well studied in fish. We identified a CCL25-like (EcCCL25, 108 aa) and two CCR9-like sequences (EcCCR9aa 373 aa; and EcCCR9b, 375 aa) from a transcriptome database of orange-spotted grouper (Epinephelus coioides). EcCCL25, EcCCR9a, and EcCCR9b shared conserved structural features with homologs from mammals and from other fish, and a consistent relationship with phylogenetic trees and sequence identities...
June 15, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28614360/comparative-genomics-of-cryptococcus-neoformans-var-grubii-associated-with-meningitis-in-hiv-infected-and-uninfected-patients-in-vietnam
#5
Jeremy N Day, Seet Qihui, Lam Tuan Thanh, Phan Hai Trieu, Anh Duong Van, Nha Hoang Thu, Tran Thi Hong Chau, Nguyen P H Lan, Nguyen Van Vinh Chau, Philip M Ashton, Guy E Thwaites, Maciej F Boni, Marcel Wolbers, Niranjan Nagarajan, Patrick B O Tan, Stephen Baker
The vast burden of cryptococcal meningitis occurs in immunosuppressed patients, driven by HIV, and is caused by Cryptococcus neoformans var. grubii. We previously reported cryptococcal meningitis in Vietnam arising atypically in HIV uninfected, apparently immunocompetent patients, caused by a single amplified fragment length polymorphism (AFLP) cluster of C. neoformans var. grubii (VNIγ). This variant was less common in HIV infected individuals; it remains unclear why this lineage is associated with apparently immunocompetent patients...
June 14, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28612212/risk-behaviors-for-hiv-and-hcv-infection-among-people-who-inject-drugs-in-hai-phong-viet-nam-2014
#6
Huong Thi Duong, Don Des Jarlais, Oanh Hai Thi Khuat, Kamyar Arasteh, Jonathan Feelemyer, Pham Minh Khue, Hoang Thi Giang, Didier Laureillard, Vinh Vu Hai, Roselyne Vallo, Laurent Michel, Jean Pierre Moles, Nicolas Nagot
We examined the potential for HIV and hepatitis C (HCV) transmission across persons who inject drugs (PWID), men-who-have-sex-with-men (MSM) and female commercial sex workers (CSW) PWID and the potential for sexual transmission of HIV from PWID to the general population in Hai Phong, Viet Nam. Using respondent driven and convenience sampling we recruited 603 participants in 2014. All participants used heroin; 24% used non-injected methamphetamine. HIV prevalence was 25%; HCV prevalence was 67%. HIV infection was associated with HCV prevalence and both infections were associated with length of injecting career...
June 13, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28610841/hsp27-promotes-abca1-expression-and-cholesterol-efflux-through-the-pi3k-pkc%C3%AE-sp1-pathway-in-thp-1-macrophages
#7
Hai-Jun Kuang, Guo-Jun Zhao, Wu-Jun Chen, Min Zhang, Gao-Feng Zeng, Xi-Long Zheng, Chao-Ke Tang
Heat shock protein 27 (Hsp27) is a putative biomarker and therapeutic target in atherosclerosis. This study was to explore the potential mechanisms underlying Hsp27 effects on ATP-binding cassette transporter A1 (ABCA1) expression and cellular cholesterol efflux. THP-1 macrophage-derived foam cells were infected with adenovirus to express wild-type Hsp27, hyper-phosphorylated Hsp27 mimic (3D Hsp27), antisense Hsp27 or hypo-phosphorylated Hsp27 mimic (3A Hsp27). Wild-type and 3D Hsp27 were found to up-regulate ABCA1 mRNA and protein expression and increase cholesterol efflux from cells...
June 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28608939/multivalent-siderophore-dotam-conjugates-as-theranostics-for-imaging-and-treatment-of-bacterial-infections
#8
Kevin Ferreira, Hai-Yu Hu, Verena Fetz, Hans Prochnow, Bushra Rais, Peter P Müller, Mark Brönstrup
There is a strong need to better diagnose infections at deep body sites through noninvasive molecular imaging methods. Herein, we describe the synthesis and characterization of probes based on siderophore conjugates with catechol moieties and a central DOTAM scaffold. The probes can accommodate a metal ion as well as an antibiotic moiety and are therefore suited for theranostic purposes. The translocation of the conjugates across the outer and inner cell membranes of E. coli was confirmed by growth recovery experiments with enterobactin-deficient strains, by the antibacterial activity of ampicillin conjugates, and by confocal imaging using a fluorogen-activating protein-malachite green system adapted to E...
June 13, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28607014/np108-an-antimicrobial-polymer-with-activity-against-methicillin-and-mupirocin-resistant-staphylococcus-aureus
#9
Derry K Mercer, Laura K Katvars, Fiona Hewitt, Daniel W Smith, Jennifer Robertson, Deborah A O'Neil
Staphylococcus aureus is a clinically significant human pathogen that causes infectious diseases ranging from skin and soft tissue infections (SSTI), healthcare associated infections (HAI) to potentially fatal bacteraemia and endocarditis. Nasal carriage of S. aureus, especially persistent carriage, is associated with an increased risk of subsequent infection, particularly nosocomial and surgical site infections (SSI), usually via autoinfection. NP108 is a cationic antimicrobial polymer composed of Generally Recognized as Safe (GRAS) amino acid building blocks...
June 12, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28606066/treatment-outcome-of-children-with-persistent-diarrhoea-admitted-to-an-urban-hospital-dhaka-during-2012-2013
#10
Mustafa Mahfuz, Mohammed Ashraful Alam, Shoeb Bin Islam, Nurun Nahar Naila, Mohammod Jobayer Chisti, Nur Haque Alam, Shafiqul Alam Sarker, Tahmeed Ahmed
BACKGROUND: Despite availability of treatment guidelines, persistent diarrhoea (PD) has been a major contributor of diarrhoeal deaths in low and middle income countries. We evaluated the outcome of children under the age of 5 years who were treated for PD using management algorithm with locally available foods in a diarrhoeal disease hospital in Dhaka. METHODS: We extracted retrospective data from electronic database for all the under-five children admitted for PD in the Longer Stay Ward and Intensive Care Unit of the Dhaka hospital at icddr,b between 2012 and 2013...
June 12, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28605170/pharmacokinetics-based-adherence-measures-for-antiretroviral-therapy-in-hiv-infected-kenyan-children
#11
Wanzhu Tu, Winstone M Nyandiko, Hai Liu, James E Slaven, Michael L Scanlon, Samuel O Ayaya, Rachel C Vreeman
BACKGROUND: Traditional medication adherence measures do not account for the pharmacokinetic (PK) properties of the drugs, potentially misrepresenting true therapeutic exposure. METHODS: In a population of HIV-infected Kenyan children on antiretroviral therapy including nevirapine (NVP), we used a one-compartment model with previously established PK parameters and Medication Event Monitoring Systems (MEMS®)-recorded dosing times to estimate the mean plasma concentration of NVP (Cp) in individual patients during 1 month of follow-up...
June 7, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28600195/identification-and-expression-analysis-of-two-pro-inflammatory-cytokines-tnf-%C3%AE-and-il-8-in-cobia-rachycentron-canadum-l-in-response-to-streptococcus-dysgalactiae-infection
#12
Thuy Thi Thu Nguyen, Hai Trong Nguyen, Pei-Chyi Wang, Shih-Chu Chen
Tumor necrosis factor-alpha (TNF-α) and interleukin-8 (IL-8/CXCL8) play pivotal roles in mediating inflammatory responses to invading pathogens. In this study, we identified and analyzed expressions of cobia TNF-α and IL-8 during Streptococcus dysgalactiae infection. The cloned cDNA transcript of cobia TNF-α comprised of 1281 base pairs (bp), with a 774 bp open reading frame (ORF) encoding 257 amino acids. The deduced amino acid sequence of cobia TNF-α showed a close relationship (84% similarity) with TNF-α of yellowtail amberjack...
June 11, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28592266/urgent-needs-in-fostering-neglected-tropical-diseases-ntds-laboratory-capacity-in-who-western-pacific-region-results-from-the-external-quality-assessment-on-ntds-diagnosis-in-2012-2015
#13
Yan Lu, Glenda Gonzales, Shao-Hong Chen, Hao Li, Yu-Chun Cai, Yan-Hong Chu, Lin Ai, Mu-Xin Chen, Hai-Ning Chen, Jia-Xu Chen
BACKGROUND: Neglected tropical diseases (NTDs) are a heterogeneous group of mainly chronic, debilitating and often stigmatizing diseases that largely affects low-income and politically marginalized populations, causing a large burden of public health, social and economies in the NTDs endemic countries. NTDs are caused by infections with a range of pathogen, including bacteria, parasites, protozoa and viruses. The accurate diagnosis of NTDs is important for reducing morbidity, preventing mortality and for monitoring of control programs...
June 8, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28587832/identification-and-expression-analysis-of-three-xcr1-like-receptors-from-epinephelus-coioides-after-cryptocaryon-irritans-infection
#14
Lu-Yun Ni, Ling Zhou, Hai-Qing Wang, Xiao-Chun Luo, Xue-Ming Dan, Yan-Wei Li
The unique receptor XCR1 of the XC subfamily of chemokines is specially expressed in CD8α-like dendritic cells. This receptor has one ligand in mice (XCL1) and two ligands in humans (XCL1 and XCL2). In mammals, the XCR1-XCL1 complex performs a vital role in regulating the localization and function of T cells, dendritic cells, and other cell types. In this study, three XCR1-like receptors (EcXCR1, EcXCR1L, and EcCCR12) were identified from a transcriptome database of orange-spotted grouper. The open reading frames (ORFs) of EcXCR1, EcXCR1L, and EcCCR12 predictably encode 337, 348, and 358 amino acids, respectively...
June 3, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28585438/pulmonary-immune-cells-and-inflammatory-cytokine-dysregulation-are-associated-with-mortality-of-il-1r1-mice-infected-with-influenza-virus-h1n1
#15
Lei Guo, Yan-Cui Wang, Jun-Jie Mei, Ruo-Tong Ning, Jing-Jing Wang, Jia-Qi Li, Xi Wang, Hui-Wen Zheng, Hai-Tao Fan, Long-Ding Liu
Respirovirus infection can cause viral pneumonia and acute lung injury (ALI). The interleukin-1 (IL-1) family consists of proinflammatory cytokines that play essential roles in regulating immune and inflammatory responses in vivo. IL-1 signaling is associated with protection against respiratory influenza virus infection by mediation of the pulmonary anti-viral immune response and inflammation. We analyzed the infiltration lung immune leukocytes and cytokines that contribute to inflammatory lung pathology and mortality of fatal H1N1 virus-infected IL-1 receptor 1 (IL-1R1) deficient mice...
May 18, 2017: Zoological Research
https://www.readbyqxmd.com/read/28585421/evaluation-of-potential-anti-toxoplasmosis-efficiency-of-combined-traditional-herbs-in-a-mouse-model
#16
Xun-Hui Zhuo, Hong-Chao Sun, Bin Huang, Hai-Jie Yu, Ying Shan, Ai-Fang Du
Toxoplasma gondii is a worldwide spread protozoan and is able to infect almost all warm-blood animals. No effective drugs are available clinically on toxoplasmosis. Chinese traditional herbal medicines have provided remedies for many health problems. There exists a possibility that Chinese herbs may provide protection against T. gondii. This work aims to assess the protective efficacy of combined Chinese herbs against T. gondii. We screened five herbal medicines that have different pharmacological effects and combined them into a prescription according to the traditional Chinese medicine compatibility principle...
June 2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28584431/hospital-acquired-infection-prevalence-and-outcome-in-infants-undergoing-open-heart-surgery-in-the-present-era
#17
Manoj Kumar Sahu, Ch Bharat Siddharth, Velayudham Devagouru, Sachin Talwar, Sarvesh Pal Singh, Shiv Chaudhary, Balram Airan
BACKGROUND: The aim of this study is to evaluate the causal relation between hospital-acquired infection (HAI) and clinical outcomes following cardiac surgery in neonates and infants and to identify the risk factors for the development of HAI in this subset of patients. MATERIALS AND METHODS: After Ethics committee approval, one hundred consecutive infants undergoing open heart surgery (OHS) between June 2015 and June 2016 were included in this prospective observational study...
May 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28582475/combined-plasma-elevation-of-crp-intestinal-type-fatty-acid-binding-protein-i-fabp-and-scd14-identifies-older-patients-at-high-risk-for-healthcare-associated-infections
#18
Paillaud Elena, Bastuji-Garin Sylvie, Plonquet Anne, Foucat Emile, Fournier Bénédicte, Boutin Emmanuelle, Le Thuaut Aurélie, Levy Yves, Hue Sophie
Background: We hypothesized that low-grade inflammation was driven by microbial translocation and associated with an increased risk of healthcare-associated infections (HAIs). Methods: We included 121 patients aged 75 years or over in this prospective cohort study. High-sensitivity C-reactive protein (hs-CRP), I-FABP, and sCD14 -- as markers for low-grade inflammation, intestinal epithelial barrier integrity, and monocyte activation, respectively -- were measured at admission...
June 3, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28579835/transmission-of-health-care-associated-infections-from-roommates-and-prior-room-occupants-a-systematic-review
#19
REVIEW
Bevin Cohen, Catherine Crawford Cohen, Borghild Løyland, Elaine L Larson
Pathogens that cause health care-associated infections (HAIs) are known to survive on surfaces and equipment in health care environments despite routine cleaning. As a result, the infection status of prior room occupants and roommates may play a role in HAI transmission. We performed a systematic review of the literature evaluating the association between patients' exposure to infected/colonized hospital roommates or prior room occupants and their risk of infection/colonization with the same organism. A PubMed search for English articles published in 1990-2014 yielded 330 studies, which were screened by three reviewers...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28579524/characterization-and-expression-analysis-of-grouper-epinephelus-coioides-co-stimulatory-molecules-cd83-and-cd80-86-post-cryptocaryon-irritans-infection
#20
Ze-Quan Mo, Jiu-Le Wang, Man Yang, Lu-Yun Ni, Hai-Qing Wang, Guo-Feng Lao, Yan-Wei Li, An-Xing Li, Xiao-Chun Luo, Xue-Ming Dan
Co-stimulatory molecules (CD83, CD80 and CD86), belong to immunoglobulin superfamily, are type I membrane glycoprotein, which express on antigen presenting cells and provide the second signal for the activation of T lymphocytes. In the present study, we cloned the grouper's CD83 (675 bp) and CD80/86 (876 bp). Homology analysis showed that both EcCD83 and EcCD80/86 shares the highest amino acid similarity (51% and 47%) for the overall sequence with puffer fish (Takifugu rubripes). Some conserved features and important functional residues in mammalian CD83, CD80 and CD86 were also identified from these molecules of teleosts including grouper, suggesting the function of both molecules may be conserved among vertebrates...
June 1, 2017: Fish & Shellfish Immunology
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