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https://www.readbyqxmd.com/read/29156852/risk-factors-for-recurrent-central-line-associated-bloodstream-infections-in-a-pediatric-intensive-care-unit
#1
Rana İşgüder, İlker Devrim, Gökhan Ceylan, Ahu Kara, Gamze Gülfidan, Hasan Ağın
Background/aim: It is recommended that a central venous catheter (CVC) be removed if central line-associated bloodstream infection (CLABSI) has been diagnosed. The objective of this retrospective study was to evaluate the risk factors for recurrent CLABSI in reinserted catheters in a pediatric intensive care unit. Materials and methods: Patients with recurrent and nonrecurrent CLABSI were compared in terms of the catheter exchange interval, the interval between negative blood culture and reinsertion of the CVC, and the pre-/reinsertion treatment duration...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29156743/hepatitis-c-virus-core-overcomes-all-trans-retinoic-acid-induced-apoptosis-in-human-hepatoma-cells-by-inhibiting-p14-expression-via-dna-methylation
#2
Juri Kwak, Jung-Hye Choi, Kyung Lib Jang
All-trans retinoic acid (ATRA), the most biologically active metabolite of vitamin A, is known to induce p14 expression via promoter hypomethylation to activate the p14-MDM2-p53 pathway, which leads to activation of the p53-dependent apoptotic pathway and subsequent induction of apoptosis in human hepatoma cells. In the present study, we found that hepatitis C virus (HCV) Core derived from ectopic expression or HCV infection overcomes ATRA-induced apoptosis in p53-positive hepatoma cells. For this effect, HCV Core upregulated both protein levels and enzyme activities of DNA methyltransferase 1 (DNMT1), DNMT3a, and DNMT3b and thereby repressed p14 expression via promoter hypermethylation, resulting in inactivation of the pathway leading to p53 accumulation in the presence of ATRA...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156634/an-overview-of-chitosan-nanoparticles-and-its-application-in-non-parenteral-drug-delivery
#3
REVIEW
Munawar A Mohammed, Jaweria T M Syeda, Kishor M Wasan, Ellen K Wasan
The focus of this review is to provide an overview of the chitosan based nanoparticles for various non-parenteral applications and also to put a spotlight on current research including sustained release and mucoadhesive chitosan dosage forms. Chitosan is a biodegradable, biocompatible polymer regarded as safe for human dietary use and approved for wound dressing applications. Chitosan has been used as a carrier in polymeric nanoparticles for drug delivery through various routes of administration. Chitosan has chemical functional groups that can be modified to achieve specific goals, making it a polymer with a tremendous range of potential applications...
November 20, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/29156624/evaluation-of-posaconazole-pharmacokinetics-in-adult-patients-with-invasive-fungal-infection
#4
Sarah Allegra, Giovanna Fatiguso, Silvia De Francia, Fabio Favata, Elisa Pirro, Chiara Carcieri, Amedeo De Nicolò, Jessica Cusato, Giovanni Di Perri, Antonio D'Avolio
Mortality and morbidity due to invasive fungal infections have increased over the years. Posaconazole is a second-generation triazole agent with an extended spectrum of activity, which shows a high interindividual variability in its plasma levels, rendering dosing in many patients inconsistent or inadequate. Hence, posaconazole therapeutic drug monitoring, which is easily available in clinical practice, may improve treatment success and safety. The aim of the study was to describe posaconazole pharmacokinetics, and to evaluate the utility of therapeutic drug monitoring for therapy and prophylaxis in a cohort of adult patients...
November 20, 2017: Biomedicines
https://www.readbyqxmd.com/read/29156562/biodegradable-chitosan-decreases-the-immune-response-to-trichinella-spiralis-in-mice
#5
Klaudia Brodaczewska, Natalia Wolaniuk, Katarzyna Lewandowska, Katarzyna Donskow-Łysoniewska, Maria Doligalska
The purpose of this study was to evaluate the potential of chitosan units released during natural degradation of the polymer to activate the immune system against T. spiralis infection. High molecular weight chitosan was injected intraperitoneally into C57BL/6 mice. Flow cytometry and cytokine concentration, measured by ELISA, were used to characterize peritoneal cell populations during T. spiralis infection. The strong chemo-attractive properties of chitosan caused considerable infiltration into the peritoneal cavity of CD11b⁺ cells, with reduced expression of MHC class II, CD80, CD86, Dectin-1 or CD23 receptors in comparison to T...
November 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29156547/knowledge-and-practices-of-toxoplasmosis-among-clinical-laboratory-professionals-a-cross-sectional-study-in-durango-mexico
#6
Cosme Alvarado-Esquivel, Luis Francisco Sánchez-Anguiano, Luis Omar Berumen-Segovia, Jesús Hernández-Tinoco, Yazmin Del Rosario Rico-Almochantaf, Alfredo Cisneros-Camacho, Jorge Arturo Cisneros-Martínez
Background: The aim of this study was to determine the level of knowledge and practices about toxoplasmosis in a sample of clinical laboratory professionals in Mexico. Methods: 192 clinical laboratory professionals were surveyed. They were asked about (1) Toxoplasma gondii; (2) clinical manifestations, diagnosis, treatment, and epidemiology of toxoplasmosis; and (3) their practices with respect to toxoplasmosis. Results: The range of animals infected by T. gondii was known by 44.8% of participants. Clinical aspects of toxoplasmosis were known by up to 44...
November 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29156524/kif3a-knockdown-sensitizes-bronchial-epithelia-to-apoptosis-and-aggravates-airway-inflammation-in-asthma
#7
Gang Geng, Ying Du, Jihong Dai, Daiyin Tian, Yunqiu Xia, Zhou Fu
BACKGROUND: KIF3A expression was decreased in asthmatic child patients and animal. Impaired KIF3A expression resulted in increased Th2 inflammation in mice and apoptosis in renal tubular epithelium and photoreceptor cells. This work aimed to investigate the role of KIF3A in epithelium apoptosis and bronchial inflammation in asthma. METHODS: After establishment of ovalbumin induced asthma, the mice were infected with KIF3A adenovirus through nasal cavity inhalation...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156382/discovery-of-selective-dengue-virus-inhibitors-using-combination-of-molecular-fingerprint-based-virtual-screening-protocols-structure-based-pharmacophore-model-development-molecular-dynamics-simulations-and-in-vitro-studies
#8
Shaher Bano Mirza, Regina Ching Hua Lee, Justin Jang Hann Chu, Ramin Ekhteiari Salmas, Thomas Mavromoustakos, Serdar Durdagi
Dengue virus is a major issue of tropical and sub-tropical regions. The proliferation of virus results in immense number of deaths each year because of unavailability of on-shelf drugs. This issue necessitates the design of novel anti-Dengue drugs. The protease enzyme pathway is the critical target for drug design due to its significance in the replication, survival and other cellular activities of Dengue virus. Keeping in mind the worsening situation regarding Dengue virus, approximately eighteen million drug-like compounds from the ZINC small molecule database have been screened against Nonstructural Protein 3 (NS3) previously by our group...
October 24, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/29156242/optimization-of-pmaxx-pretreatment-to-distinguish-between-human-norovirus-with-intact-and-altered-capsids-in-shellfish-and-sewage-samples
#9
Walter Randazzo, Mohammad Khezri, Joanna Ollivier, Françoise S Le Guyader, Jesús Rodríguez-Díaz, Rosa Aznar, Gloria Sánchez
Shellfish contamination by human noroviruses (HuNoVs) is a serious health and economic problem. Recently an ISO procedure based on RT-qPCR for the quantitative detection of HuNoVs in shellfish has been issued, but these procedures cannot discriminate between inactivated and potentially infectious viruses. The aim of the present study was to optimize a pretreatment using PMAxx to better discriminate between intact and heat-treated HuNoVs in shellfish and sewage. To this end, the optimal conditions (30min incubation with 100μM of PMAxx and 0...
November 15, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29156232/use-of-negative-pressure-wound-therapy-after-infection-and-flap-dehiscence-in-radical-vulvectomy-a-case-report
#10
Antoni Llueca, Jose Luis Herraiz, Raquel Del Moral, Dolors Piquer, Yasmine Maazouzi, Blanca Segarra, Jordan Barres, Anna Serra
INTRODUCTION: Vulvar cancer has a lower incidence in high income countries, but is rising, in part, due to the high life expectancy in these societies. Radical vulvectomy is still the standard treatment in initial stages. Wound dehiscence contitututes one of the most common postoperative complications. PRESENTATION OF CASE: A 76year old patient with a squamous cell carcinoma of the vulva, FIGO staged, IIIb is presented. Radical vulvectomy and bilateral inguinal lymph node dissection with lotus petal flaps reconstruction are performed as the first treatment...
November 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29156159/amnion-the-ideal-scaffold-for-treating-full-thickness-wounds-of-the-lower-extremity
#11
REVIEW
Bryon McKenna, N Jake Summers
Amnion and amniotic tissue has been studied for more than 100 years in the treatment of acute and chronic wounds. Recent studies have focused on the use of amnion tissue in the management of full-thickness diabetic wounds, particularly of the lower extremities. With new harvesting, processing, and distribution technologies, amnion is increasingly available in treating these wounds. Current data and research show increased healing potential and decreased healing times, pain, drainage, and infection in wounds treated with amnion products...
January 2018: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/29156081/cervical-hpv-prevalence-and-genotype-distribution-in-immunosuppressed-danish-women
#12
Mette T Roensbo, Jan Blaakaer, Karin Skov, Anne Hammer
INTRODUCTION: Women receiving immunosuppressive treatment due to organ transplantation are at increased risk of Human papilloma virus (HPV)-related diseases, including cervical neoplasia. This pilot study aimed to describe the cervical HPV prevalence and genotype distribution in immunosuppressed Danish women. MATERIAL AND METHODS: We included women who underwent renal- (RTR) or bone marrow transplantation (BMTR) in 2009-2012 or 2014 at Aarhus University Hospital, Denmark...
November 20, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29156049/management-of-pregnant-women-and-children-focusing-on-preventing-mother-to-infant-transmission
#13
Huey-Ling Chen, Wan-Hsin Wen, Mei-Hwei Chang
Hepatitis B virus (HBV) immunization has been effectively preventing chronic HBV infection with >90% efficacy in countries with universal neonatal immunization. Perinatal mother-to-infant transmission of HBV remains the major cause of chronic HBV infection despite immunization. Maternal hepatitis B e-antigen (HBeAg) and high viral load have been noted to be the most important risk factors for transmission. In recent years, short-term antiviral therapy for pregnant women in the third trimester has been shown to be highly effective in reducing 90% of vaccine failure in children...
November 16, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29156047/immunopathogenesis-of-hepatitis-b-virus
#14
Tai-Chung Tseng, Li-Rung Huang
Chronic hepatitis B virus (HBV) infection is a global public health issue. There are >250 million people chronically infected with HBV, and these chronic carriers are at high risk of developing end-stage liver diseases and hepatocellular carcinoma. Patients with chronic hepatitis B (CHB) usually acquire the virus perinatally, while most patients infected during adulthood develop acute hepatitis B (AHB), which usually results in viral clearance. HBV infection is noncytopathic, and liver injury is mostly contributed by host immune responses...
November 16, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29156046/toward-a-cure-for-hepatitis-b-virus-infection-combination-therapy-involving-viral-suppression-and-immune-modulation-and-long-term-outcome
#15
Di Wu, Qin Ning
Chronic hepatitis B virus (HBV) infection remains a major global health burden. Currently, the approved therapeutic regimens include nucleos(t)ide analogues (NAs) and either interferon or pegylated interferon. NA therapy is generally safe and well tolerated, but the rate of posttreatment virologic relapse is high, making NA treatment a lifetime commitment. The benefits of pegylated interferon treatment include a finite duration, more-durable response and absence of viral resistance. However, sustained response to interferon alone is achieved only in a minority of patients, and side effects are common, which limit its clinical use...
November 16, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29156043/tenofovir-alafenamide-fumarate-a-new-tenofovir-prodrug-for-the-treatment-of-chronic-hepatitis-b-infection
#16
Maria Buti, Mar Riveiro-Barciela, Rafael Esteban
Tenofovir alafenamide fumarate (TAF), a new prodrug of tenofovir and a potential successor of tenofovir disoproxil fumarate (TDF), has been approved in the United States and Europe for treating adolescents and adults with chronic hepatitis B infection. TAF is formulated to deliver the active metabolite to target cells more efficiently than TDF at lower doses, thereby reducing systemic exposure to tenofovir. In patients with chronic hepatitis B, TAF appears to be as effective as TDF, with lower bone and renal toxicity...
November 16, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29155939/group-b-streptococcus-activates-transcriptomic-pathways-related-to-premature-birth-in-human-extraplacental-membranes-in-vitro
#17
Hae-Ryung Park, Sean M Harris, Erica Boldenow, Richard C McEachin, Maureen Sartor, Mark Chames, Rita Loch-Caruso
Streptococcus agalactiae (group B streptococcus, GBS) infection in pregnant women is the leading cause of infectious neonatal morbidity and mortality in the United States. Although inflammation during infection has been associated with preterm birth, the contribution of GBS to preterm birth is less certain. Moreover, the early mechanisms by which GBS interacts with the gestational tissue to affect adverse pregnancy outcomes are poorly understood. We hypothesized that short term GBS inoculation activates pathways related to inflammation and premature birth in human extraplacental membranes...
November 16, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29155896/progesterone-impairs-antigen-non-specific-immune-protection-by-cd8-t-memory-cells-via-interferon-%C3%AE-gene-hypermethylation
#18
Yushi Yao, Hui Li, Jie Ding, Yixin Xia, Lei Wang
Pregnant women and animals have increased susceptibility to a variety of intracellular pathogens including Listeria monocytogenes (LM), which has been associated with significantly increased level of sex hormones such as progesterone. CD8 T memory(Tm) cell-mediated antigen-non-specific IFN-γ responses are critically required in the host defense against LM. However, whether and how increased progesterone during pregnancy modulates CD8 Tm cell-mediated antigen-non-specific IFN-γ production and immune protection against LM remain poorly understood...
November 20, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29155867/spectrum-of-pathogen-and-model-specific-histopathologies-in-mouse-models-of-acute-pneumonia
#19
Kristina Dietert, Birgitt Gutbier, Sandra M Wienhold, Katrin Reppe, Xiaohui Jiang, Ling Yao, Catherine Chaput, Jan Naujoks, Markus Brack, Alexandra Kupke, Christin Peteranderl, Stephan Becker, Carolin von Lachner, Nelli Baal, Hortense Slevogt, Andreas C Hocke, Martin Witzenrath, Bastian Opitz, Susanne Herold, Holger Hackstein, Leif E Sander, Norbert Suttorp, Achim D Gruber
Pneumonia may be caused by a wide range of pathogens and is considered the most common infectious cause of death in humans. Murine acute lung infection models mirror human pathologies in many aspects and contribute to our understanding of the disease and the development of novel treatment strategies. Despite progress in other fields of tissue imaging, histopathology remains the most conclusive and practical read out tool for the descriptive and semiquantitative evaluation of mouse pneumonia and therapeutic interventions...
2017: PloS One
https://www.readbyqxmd.com/read/29155832/implementing-universal-hiv-treatment-in-a-high-hiv-prevalence-and-rural-south-african-setting-field-experiences-and-recommendations-of-health-care-providers
#20
Melanie Plazy, Delphine Perriat, Dumile Gumede, Sylvie Boyer, Deenan Pillay, François Dabis, Janet Seeley, Joanna Orne-Gliemann
BACKGROUND: We aimed to describe the field experiences and recommendations of clinic-based health care providers (HCP) regarding the implementation of universal antiretroviral therapy (ART) in rural KwaZulu-Natal, South Africa. METHODS: In Hlabisa sub-district, the local HIV programme of the Department of Health (DoH) is decentralized in 18 clinics, where ART was offered at a CD4 count ≤500 cells/μL from January 2015 to September 2016. Within the ANRS 12249 TasP trial, implemented in part of the sub-district, universal ART (no eligibility criteria) was offered in 11 mobile clinics between March 2012 and June 2016...
2017: PloS One
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