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https://www.readbyqxmd.com/read/27936480/treatment-of-fulminant-acute-hepatitis-b-with-nucles-t-id-analogues-is-safe-and-does-not-lead-to-secondary-chronification-of-hepatitis-b
#1
C Jochum, F Maischack, O E Anastasiou, J Verheyen, J Timm, L Bechmann, G Gerken, A Canbay
Background: Acute hepatitis B virus (HBV) infection is still a major cause of acute liver failure (ALF), necessitating a high rate of emergency liver transplantation (LTx). Acute infection is followed by high viral replication rates leading to hepatocyte death and, ultimately, ALF. The objective of treating HBV-induced ALF thus is to eliminate, or significantly suppress, HBV replication and therefore reduce cell death and support regeneration. Objective: In this retrospective study, we want to evaluate the timing, the safety, and the long-term virological outcome of this approach...
December 2016: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/27936233/malaria-in-hiv-infected-children-receiving-hiv-protease-inhibitor-compared-with-non-nucleoside-reverse-transcriptase-inhibitor-based-antiretroviral-therapy-impaact-p1068s-substudy-to-p1060
#2
Charlotte V Hobbs, Erin E Gabriel, Portia Kamthunzi, Gerald Tegha, Jean Tauzie, Elizabeth Petzold, Linda Barlow-Mosha, Benjamin H Chi, Yonghua Li, Tiina Ilmet, Brian Kirmse, Jillian Neal, Sunil Parikh, Nagamah Deygoo, Patrick Jean Philippe, Lynne Mofenson, William Prescott, Jingyang Chen, Philippa Musoke, Paul Palumbo, Patrick E Duffy, William Borkowsky
BACKGROUND: HIV and malaria geographically overlap. HIV protease inhibitors kill malaria parasites in vitro and in vivo, but further evaluation in clinical studies is needed. METHODS: Thirty-one children from Malawi aged 4-62 months were followed every 3 months and at intercurrent illness visits for ≤47 months (September 2009-December 2011). We compared malaria parasite carriage by blood smear microscopy (BS) and confirmed clinical malaria incidence (CCM, or positive BS with malaria symptoms) in children initiated on HIV antiretroviral therapy (ART) with zidovudine, lamivudine, and either nevirapine (NVP), a non-nucleoside reverse transcriptase inhibitor, or lopinavir-ritonavir (LPV-rtv), a protease inhibitor...
2016: PloS One
https://www.readbyqxmd.com/read/27936047/cross-neutralizing-antibodies-in-hiv-1-individuals-infected-by-subtypes-b-f1-c-or-the-b-bbr-variant-in-relation-to-the-genetics-and-biochemical-characteristics-of-the-env-gene
#3
Dalziza Victalina de Almeida, Karine Venegas Macieira, Beatriz Gilda Jegerhorn Grinsztejn, Valdiléa Gonçalves Veloso Dos Santos, Monick Lindenmeyer Guimarães
Various HIV-1 env genetic and biochemical features impact the elicitation of cross-reactive neutralizing antibodies in natural infections. Thus, we aimed to investigate cross-neutralizing antibodies in individuals infected with HIV-1 env subtypes B, F1, C or the B/Bbr variant as well as env characteristics. Therefore, plasma samples from Brazilian chronically HIV-1 infected individuals were submitted to the TZM-bl neutralization assay. We also analyzed putative N-glycosylation sites (PNGLs) and the size of gp120 variable domains in the context of HIV-1 subtypes prevalent in Brazil...
2016: PloS One
https://www.readbyqxmd.com/read/27935986/quantifying-adaptive-and-innate-immune-responses-in-hiv-infected-participants-using-a-novel-high-throughput-assay
#4
Michelle K Yong, Paul U Cameron, Tim Spelman, Julian H Elliott, Christopher K Fairley, Jeffrey Boyle, Misato Miyamasu, Sharon R Lewin
OBJECTIVES: HIV infection is characterised by persistent immune dysfunction of both the adaptive and innate immune responses. The aim of this study was to evaluate these responses using a novel high throughput assay in healthy controls and HIV-infected individuals prior to and following anti-retroviral treatment (ART). DESIGN: Cross-sectional study. METHODS: Whole blood was assessed using the QuantiFERON Monitor® (QFM) assay containing adaptive and innate immunostimulants...
2016: PloS One
https://www.readbyqxmd.com/read/27935764/morphofunctional-renal-alterations-in-progeny-of-mice-fed-rhodiola-kirilowii-extracts-or-epigallocatechin-during-pregnancy-and-lactation
#5
Sławomir Lewicki, Ewa Skopińska-Różewska, Barbara Joanna Bałan, Bolesław Kalicki, Janusz Patera, Jacek Wilczak, Aleksander Wasiutyński, Robert Zdanowski
Treating infections in pregnant patients is potentially dangerous even when herbal medicines are used. Many herbal medicines, among them extracts from plants of Rhodiola genus, have antimicrobial, anti-inflammatory, and immunostimulatory properties owing to their polyphenol content; they may, however, affect fetal development due to their antiangiogenic properties. The aim of this study was to explain whether daily feeding pregnant and lactating mice with 20 mg/kg Rhodiola kirilowii aqueous (RKW) or 50% hydro-alcoholic (RKW-A) extracts, or 0...
December 9, 2016: Journal of Medicinal Food
https://www.readbyqxmd.com/read/27934678/incidence-of-hepatitis-b-virus-reactivation-in-patients-with-resolved-infection-on-immunosuppressive-therapy-for-rheumatic-disease-a-multicentre-prospective-observational-study-in-japan
#6
Wataru Fukuda, Tadamasa Hanyu, Masaki Katayama, Shinichi Mizuki, Akitomo Okada, Masayuki Miyata, Yuichi Handa, Masatoshi Hayashi, Yoshinobu Koyama, Kaoru Arii, Toshiyuki Kitaori, Hiroyuki Hagiyama, Yoshinori Urushidani, Takahito Yamasaki, Yoshihiko Ikeno, Tsuyoshi Suzuki, Atsushi Omoto, Toshifumi Sugitani, Satoshi Morita, Shigeko Inokuma
BACKGROUND: Although the reactivation of hepatitis B virus (HBV) is recognised as a serious complication in patients with rheumatic disease (RD) receiving immunosuppressive drugs (ISDs), the incidence and risk factors for reactivation remain controversial. OBJECTIVES: To investigate the incidence and risk factors for HBV reactivation in patients with RD. METHODS: We performed a multicentre, observational, prospective study over 2 years in patients with resolved HBV infection...
December 1, 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/27934478/pulmonary-surfactant-protein-a-mediated-enrichment-of-surface-decorated-polymeric-nanoparticles-in-alveolar-macrophages
#7
Christian A Ruge, Hervé Hillaireau, Nadège Grabowski, Mortiz Beck-Broichsitter, Olga Cañadas, Nicolas Tsapis, Cristina Casals, Julien Nicolas, Elias Fattal
Surfactant protein A (SP-A), a lung anti-infective protein, is a lectin with affinity for sugars found on fungal and micrococcal surfaces such as mannose. We synthesized a mannosylated poly(lactic acid)-poly(ethylene glycol) (PLA-PEG) copolymer and used it to produce nanoparticles with a polyester (PLGA/PLA) core and a PEG shell decorated with mannose residues, designed to be strongly associated with SP-A for an increased uptake by alveolar macrophages. Nanoparticles made of the copolymers were obtained by nanoprecipitation and displayed a size of around 140 nm...
December 5, 2016: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27933716/risks-and-treatment-strategies-for-de-novo-hepatitis-b-virus-infection-from-anti-hbc-positive-donors-in-pediatric-living-donor-liver-transplantation
#8
Chong Dong, Wei Gao, Nan Ma, Chao Sun, Wei-Ping Zheng, Kai Wang, Zhong-Yang Shen
The aim of this study was to analyze the incidence and risk factors of de novo HBV infection in pediatric patients receiving living donor liver transplants (LDLT) from HBcAb-positive donors, and to explore its treatment strategies. The data of 101 pediatric recipients receiving LDLT in Tianjin First Central Hospital between September 2006 and December 2012 were retrospectively analyzed. The HBV markers were regularly tested before and after the surgery, including HBsAb, HBsAg, HBeAg, HBeAb, and HBcAb. The median follow-up period was 25...
December 9, 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/27933686/risk-of-incident-mycobacterium-tuberculosis-infection-in-patients-with-inflammatory-bowel-disease-a-nationwide-population-based-study-in-south-korea
#9
S N Hong, H J Kim, K H Kim, S-J Han, I M Ahn, H S Ahn
BACKGROUND: The low incidence of Mycobacterium tuberculosis infection and lack of adequate controls have prevented researchers from estimating tuberculosis (TB) risk in inflammatory bowel disease (IBD) patients. AIM: To evaluate the risk of incident TB among IBD patients. METHODS: Using the 2011-2013 data of the South Korean National Health Insurance (NHI) system, we calculated the incidence rates (IRs), standardised incidence ratio (SIR) and number needed to screen (NNS) for incident TB in IBD patients compared to the general population in terms of subtype, age, gender and IBD medications...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27933277/lectins-from-synadenium-carinatum-scll-and-artocarpus-heterophyllus-artinm-are-able-to-induce-beneficial-immunomodulatory-effects-in-a-murine-model-for-treatment-of-toxoplasma-gondii-infection
#10
Eliézer L P Ramos, Silas S Santana, Murilo V Silva, Fernanda M Santiago, Tiago W P Mineo, José R Mineo
Infection by Toxoplasma gondii affects around one-third of world population and the treatment for patients presenting toxoplasmosis clinically manifested disease is mainly based by a combination of sulfadiazine, pyrimethamine, and folinic acid. However, this therapeutic protocol is significantly toxic, causing relevant dose-related bone marrow damage. Thus, it is necessary to improve new approaches to investigate the usefulness of more effective and non-toxic agents for treatment of patients with toxoplasmosis...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27933222/endophthalmitis-prophylaxis-using-a-single-drop-of-thermoresponsive-controlled-release-microspheres-loaded-with-moxifloxacin-in-a-rabbit-model
#11
Alex Mammen, Eric G Romanowski, Morgan V Fedorchak, Deepinder K Dhaliwal, R M Shanks, Regis P Kowalski
PURPOSE: Postsurgical endophthalmitis is a sight-threatening problem. We introduce a simple approach by using a single application of thermoresponsive controlled-release microspheres, loaded with moxifloxacin, to prevent bacterial endophthalmitis in a rabbit endophthalmitis prevention model. METHODS: We separated 24 rabbits into 3 treatment groups in which topical drop treatment was placed onto the conjunctival cul-de-sac: (1) a single drop of controlled-release microspheres containing moxifloxacin, (2) a single drop of controlled-release microspheres without moxifloxacin, and (3) multiple topical treatment with moxifloxacin alone every 15 minutes for 1 hour...
December 2016: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/27932936/riboflavin-along-with-antibiotics-balances-reactive-oxygen-species-and-inflammatory-cytokines-and-controls-staphylococcus-aureus-infection-by-boosting-murine-macrophage-function-and-regulates-inflammation
#12
Somrita Dey, Biswadev Bishayi
BACKGROUND: Macrophages serve as intracellular reservoirs of S. aureus. Recent in vitro studies have confirmed high level resistance by S. aureus to macrophage mediated killing and the intracellular persistence of Staphylococci may play an important role in the pathogenesis. Since this localization protects them from both cell-mediated and humoral immune responses, therefore, a successful anti-staphylococcal therapy should include the elimination of intracellular bacteria, further protecting the host cells from staphylococci-induced cell death...
2016: Journal of Inflammation
https://www.readbyqxmd.com/read/27932454/inducible-colonic-m-cells-are-dependent-on-tnfr2-but-not-lt%C3%AE-r-identifying-distinct-signaling-requirements-for-constitutive-versus-inducible-m-cells
#13
Erinn A Parnell, Erin M Walch, David D Lo
BACKGROUND AND AIMS: M cells associated with organized lymphoid tissues such as intestinal Peyer's patches provide surveillance of the intestinal lumen. Inflammation or infection in the colon can induce an M cell population associated with lymphoid infiltrates; paradoxically, induction is dependent on the inflammatory cytokine Tumor Necrosis Factor (TNF)-α. Anti-TNFα blockade is an important therapeutic in Inflammatory Bowel Disease, so understanding the effects of TNFα signaling is important in refining therapeutics...
December 7, 2016: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/27932200/the-seroprevalence-of-hepatitis-b-hepatitis-c-and-human-immunodeficiency-virus-in-patients-undergoing-septoplasty
#14
Ozlem Onerci Celebi, Ela Araz Server, Bahtiyar Hamit, Özgür Yiğit
INTRODUCTION: Worldwide, hepatitis B virus, hepatitis C virus, and human immunodeficiency virus are major health problems. Healthcare workers are at risk of transmitting blood-borne viruses, and surgeons have a higher risk of exposure to blood and higher rates of percutaneous injury than other healthcare workers. Septoplasty is among the 3 most commonly performed otolaryngological surgeries worldwide. OBJECTIVE: To determine the seroprevalence of Hepatitis B surface antigen, Hepatitis C virus antibody, and Human Immunodeficiency Virus antibody in patients undergoing septoplasty with and without turbinate surgery under general anesthesia, and to determine if preoperative testing should be performed in such patients...
November 17, 2016: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/27932180/liver-transplant-recipient-with-tumefactive-demyelinating-lesions-a-case-report-and-literature-review
#15
D-L Wan, K-W Ren, L-L Zhang, B Wang, Z L Zhai, X-Y Zhang, Y-C Yang, S-S Zheng
Tumefactive demyelinating lesions (TDLs) that may resemble brain neoplasms or abscesses are uncommon but noteworthy. A solid knowledge of how to distinguish TDLs from malignancy or infection is a key step to avoid unnecessary medical or surgical interventions. Almost all the intracranial demyelination diseases after liver transplantation (LT) refer to central pontine myelinolysis or extrapontine myelinolysis; TDLs after LT have never been reported. In 2005, a 45-year-old Chinese male underwent orthotopic LT due to "acute on chronic liver failure" in our hospital...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27931976/human-newborn-b-cells-mount-an-ifnar-dependent-humoral-response-to-rsv
#16
Jop Jans, Matthew Pettengill, Dhohyung Kim, Cas van der Made, Ronald de Groot, Stefanie Henriet, Marien I de Jonge, Gerben Ferwerda, Ofer Levy
This study provides evidence of a first line of human humoral defense against RSV infection in early life including the presence of natural neutralizing anti-RSV IgM as well as an IFN-β-mediated newborn B cell activation.
December 5, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27931688/antimycobacterial-mechanism-of-vanillin-involves-disruption-of-cell-surface-integrity-virulence-attributes-and-iron-homeostasis
#17
Sharda Sharma, Rahul Pal, Saif Hameed, Zeeshan Fatima
OBJECTIVE/BACKGROUND: Tuberculosis (TB) remains a global threat, claiming one-third of the population annually. The ever increasing emergence of multidrug-resistant TB (MDR-TB) is the major impediment to effective anti-TB therapy. Under such circumstances, deciphering the antimycobacterial potential of natural compounds has gained considerable prominence. This study evaluated the antimycobacterial activity of vanillin (Van), a natural food-flavoring agent and preservative, along with its potential mechanisms of action...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/27931682/fluoroquinolone-consumption-and-resistance-trends-in-mycobacterium-tuberculosis-and-other-respiratory-pathogens-ecological-antibiotic-pressure-and-consequences-in-pakistan-2009-2015
#18
S Shakoor, S Tahseen, K Jabeen, R Fatima, F R Malik, A H Rizvi, R Hasan
OBJECTIVE/BACKGROUND: Fluoroquinolones (FQs) are important anti-tuberculous drugs for the treatment of multidrug-resistant (MDR) tuberculosis. Resistance to FQs leads to fewer options for treatment of tuberculosis (TB), and infection with such strains may also require longer treatment duration. Trends of resistance in Mycobacterium tuberculosis (MTB) are indicators of MTB-resistance evolution. Drivers of such resistance need to be understood and studied to inform preventive strategies...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/27931677/assuming-the-role-of-mitochondria-in-mycobacterial-infection
#19
REVIEW
Rikesh K Dubey
Tuberculosis is one of the leading causes of death by Mycobacterium tuberculosis (Mtb) affecting millions of people worldwide. Mycobacterium species enter host macrophages during infection and target various cellular organelles and their function for their own benefit. Mitochondria appear to be among the important targets for bacterial pathogens. Mtb and other pathogenic bacteria secrete various proteins that initiate structural changes in mitochondria to modulate its function. Additionally, virulent mycobacteria interfere with the balance between pro- and anti-apoptotic factors to inhibit apoptosis and, in later stages, promote necrosis...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/27931513/immunogenicity-of-anti-hla-antibodies-in-pancreas-and-islet-transplantation
#20
Benjamin Chaigne, Kirsten Geneugelijk, Benot Bdat, Mohamed Alibashe Ahmed, Gideon Hnger, Sophie de Seigneux, Sandrine Demuylder-Mischler, Thierry Berney, Eric Spierings, Sylvie Ferrari-Lacraz, Jean Villard
The aim of the current study was to characterize the anti-HLA antibodies before and after pancreatic islet or pancreas transplantation. We assessed the risk of anti-donor-specific antibody (DSA) sensitization in a single-center, retrospective clinical study at Geneva University Hospital. Data regarding clinical characteristics, graft outcome, HLA mismatch, donor HLA immunogenicity, and anti-HLA antibody characteristics were collected. Between January 2008 and July 2014, 18 patients received islet transplants, and 26 patients received a pancreas transplant...
November 2016: Cell Transplantation
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