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https://www.readbyqxmd.com/read/28432928/a-humanized-mouse-based-hiv-1-viral-outgrowth-assay-with-higher-sensitivity-than-in-vitro-qvoa-in-detecting-latently-infected-cells-from-individuals-on-art-with-undetectable-viral-loads
#1
Paige Charlins, Kimberly Schmitt, Leila Remling-Mulder, Louise E Hogan, Emily Hanhauser, Kristen S Hobbs, Frederick Hecht, Steven G Deeks, Timothy J Henrich, Ramesh Akkina
Assays that can verify full viral eradication are essential in the context of achieving a cure for HIV/AIDS. In vitro quantitative viral out growth assays (qVOA) are currently the gold standard for measuring latent HIV-1 but these assays often fail to detect very low levels of replication-competent virus. Here we investigated an alternative in vivo approach for sensitive viral detection using humanized mice (hmVOA). Peripheral blood CD4+ T cell samples from HIV subjects on stable ART with undetectable viral loads by RT-PCR were first assayed by in vitro qVOA...
April 19, 2017: Virology
https://www.readbyqxmd.com/read/28432589/expression-and-function-of-abcg2-and-xiap-in-glioblastomas
#2
Ivette F Emery, Archana Gopalan, Stephanie Wood, Kin-Hoe Chow, Chiara Battelli, Joshy George, Hagen Blaszyk, Jeffrey Florman, Kyuson Yun
Despite multimodal treatment that includes surgery, radiation and chemotherapy, virtually all glioblastomas (GBM) recur, indicating that these interventions are insufficient to eradicate all malignant cells. To identify potential new therapeutic targets in GBMs, we examined the expression and function of proteins that are associated with therapy resistance and cancer cell survival. We measured the expression of eight such proteins in 50 GBM samples by immunohistochemistry and analyzed patient survival. We report that GBM patients with high expression of ABCG2 (also called BCRP) or XIAP at the protein level had worse survival than those with low expression...
April 21, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28432078/effect-of-4-5-6-7-8-tetrahydro-5-5-8-8-tetramethyl-2-naphthalenyl-carbamoyl-benzoic-acid-am80-on-alveolar-regeneration-in-adiponectin-deficient-mice-showing-a-chronic-obstructive-pulmonary-disease-like-pathophysiology
#3
Hitomi Sakai, Michiko Horiguchi, Tomomi Akita, Chihiro Ozawa, Mai Hirokawa, Yuki Oiso, Harumi Kumagai, Yoshito Takeda, Isao Tachibana, Norikazu Maeda, Chikamasa Yamashita
Chronic obstructive pulmonary disease (COPD) is an intractable pulmonary disease that causes widespread and irreversible alveolar collapse. Although COPD occurs worldwide, only symptomatic therapy is currently available. The objective of the present study was the development of therapeutic agents to eradicate COPD. Therefore, we focused on 4-[(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl) carbamoyl] benzoic acid (Am80), which is a derivative of all-trans retinoic acid. We evaluated the effects of Am80 on alveolar repair in a novel COPD model of adiponectin-deficient mice...
April 21, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28431183/efficacy-of-tiamulin-alone-or-in-combination-with-chlortetracycline-against-experimental-mycoplasma-gallisepticum-infection-in-chickens
#4
A Garmyn, M Vereecken, K Degussem, W Depondt, F Haesebrouck, A Martel
Mycoplasma gallisepticum (M. gallisepticum) remains one of the most important diseases in poultry production. Controlling the impact of the disease is done by eradication of positive breeder flocks or by vaccination and medication. A widely used molecule in medication programs is tiamulin, a pleuromutilin antibiotic. Since recent data on the in vivo efficacy of this molecule are scarce, 2 challenge studies were conducted using a recently isolated M. gallisepticum strain belonging to the wildtype population with regard to its tiamulin and tetracycline minimum inhibitory concentration (MIC)...
April 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28429102/improved-systemic-treatment-for-early-breast-cancer-improves-cure-rates-modifies-metastatic-pattern-and-shortens-post-metastatic-survival-35-year-results-from-the-munich-cancer-registry
#5
Dieter Hölzel, Renate Eckel, Ingo Bauerfeind, Bernd Baier, Thomas Beck, Michael Braun, Johannes Ettl, Ulrich Hamann, Marion Kiechle, Sven Mahner, Christian Schindlbeck, Johann de Waal, Nadia Harbeck, Jutta Engel
PURPOSE: Systemic therapies (ATHs) in early breast cancer have improved the survival of breast cancer (BC) patients in recent decades. The magnitude of the changes in overall, metastasis-free (MFS) and post-metastatic (PMS) survival and in the metastasis (MET) pattern will be described. PATIENT AND METHODS: We analysed 60,227 patients with a diagnosis of T-N-M0 BC between 1978 and 2013 and 11,983 patients with metastases (MET) in the Munich Cancer Registry. Patients will be divided into four time periods to identify relationships between BC and METs...
April 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28427781/smoking-increases-the-likelihood-of-helicobacter-pylori-treatment-failure
#6
David Itskoviz, Doron Boltin, Haim Leibovitzh, Tsachi Tsadok Perets, Doron Comaneshter, Arnon Cohen, Yaron Niv, Zohar Levi
BACKGROUND AND AIMS: Data regarding the impact of smoking on the success of Helicobacter pylori (H. pylori) eradication are conflicting, partially due to the fact that sociodemographic status is associated with both smoking and H. pylori treatment success. We aimed to assess the effect of smoking on H. pylori eradication rates after controlling for sociodemographic confounders. METHODS: Included were subjects aged 15 years or older, with a first time positive C(13)-urea breath test (C(13)-UBT) between 2007 to 2014, who underwent a second C(13)-UBT after receiving clarithromycin-based triple therapy...
March 27, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28426821/the-importance-of-model-systems-why-we-study-a-virus-on-the-brink-of-global-eradication
#7
Julie K Pfeiffer
No abstract text is available yet for this article.
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28426782/peste-des-petits-ruminants-ppr-a-neglected-tropical-disease-in-maghreb-region-of-north-africa-and-its-threat-to-europe
#8
Ratiba Baazizi, Mana Mahapatra, Brian Donald Clarke, Khatima Ait-Oudhia, Djamel Khelef, Satya Parida
BACKGROUND: Peste des petits ruminants (PPR) is a contagious disease listed by the World Organisation for Animal health (OIE) as being a specific hazard. It affects sheep, goats, and wild ungulates, and is prevalent throughout the developing world particularly Asia, the Middle East, and Africa. PPR has been targeted for eradication by 2030 by the Food and Agriculture Organization of the United Nations (FAO) and the OIE, after the successful eradication of the related disease, rinderpest in cattle...
2017: PloS One
https://www.readbyqxmd.com/read/28426663/guinea-worm-eradication-progress-and-challenges-should-we-beware-of-the-dog
#9
David Molyneux, Dieudonné P Sankara
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426533/hiv-dna-content-in-different-cd4-t-cell-subsets-correlates-with-cd4-cd8-ratio-or-length-of-efficient-treatment
#10
Lara Gibellini, Simone Pecorini, Sara de Biasi, Elena Bianchini, Margherita Digaetano, Marcello Pinti, Gianluca Carnevale, Vanni Borghi, Giovanni Guaraldi, Cristina Mussini, Andrea Cossarizza, Milena Nasi
OBJECTIVES: HIV establishes a latent infection at different degrees within naïve (TN) or central (TCM) and effector memory (TEM) CD4+ T cell. Studying patients in whom HIV production was suppressed by combined antiretroviral therapy (cART), our main aim was to find which factors are related or can influence intracellular viral reservoir in different CD4+ T cell subsets. METHODS: We enrolled 32 HIV+ patients successfully treated for > 2 years, with a CD4+ T cell count > 500 cells/μL and plasma viremia undetectable from at least one year...
April 19, 2017: AIDS
https://www.readbyqxmd.com/read/28426292/efficacy-of-three-different-lasers-on-eradication-of-enterococcus-faecalis-and-candida-albicans-biofilms-in-root-canal-system
#11
Silvija Kasić, Marita Knezović, Nataša Beader, Dragana Gabrić, Ana Ivanišević Malčić, Anja Baraba
OBJECTIVE: The objective was to compare the efficacy of three different lasers in disinfection of root canals inoculated with Enterococcus faecalis and Candida albicans biofilms. BACKGROUND: Endodontic space disinfection depends on the type of root canal irrigant used and the way it is delivered and agitated because irrigants have limited ability to reach all parts of root canal system. MATERIALS AND METHODS: Thirty single-rooted human teeth were selected...
April 20, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28426215/five-and-six-coordinated-silver-i-complexes-derived-from-2-6-pyridyl-iminodiadamantanes-sustained-release-of-bioactive-silver-toward-bacterial-eradication
#12
Jorge Jimenez, Indranil Chakraborty, Anthony M Del Cid, Pradip K Mascharak
Silver(I) complexes of two designed tridentate ligands, namely, 2,6-(pyridyl)iminoditriazaadamantane (pydTAm) and 2,6-(pyridyl)iminodiadamantane (pydAm), have been synthesized and structurally characterized. [Ag(pydTAm)2](CF3SO3) (1), the hitherto unknown mer isomer of a silver(I) octahedral complex, crystallizes in a highly symmetric body-centered cubic I4̅3m space group. Quite in contrast, the Ag(I) center in the analogous [Ag(pydAm)2](CF3SO3) (2) complex resides in a trigonal-bipyramidal geometry and crystallizes in a triclinic P1̅ space group with two crystallographically independent molecules in the asymmetric unit...
April 20, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28425141/efficacy-of-helicobacter-pylori-eradication-therapies-in-korea-a-systematic-review-and-network-meta-analysis
#13
REVIEW
Yoon Suk Jung, Chan Hyuk Park, Jung Ho Park, Eunwoo Nam, Hang Lak Lee
BACKGROUND: The efficacy of Helicobacter pylori eradication regimens may depend on the country where the studies were performed because of the difference in antibiotic resistance. We aimed to analyze the efficacy of H. pylori eradication regimens in Korea where clarithromycin resistance rate is high. METHODS: We searched for all relevant randomized controlled trials published until November 2016 that investigated the efficacy of H. pylori eradication therapies in Korea...
April 19, 2017: Helicobacter
https://www.readbyqxmd.com/read/28424790/development-of-isothermal-recombinase-polymerase-amplification-assay-for-rapid-detection-of-porcine-circovirus-type-2
#14
Yang Yang, Xiaodong Qin, Yingjun Sun, Guozheng Cong, Yanmin Li, Zhidong Zhang
Porcine circovirus virus type II (PCV2) is the etiology of postweaning multisystemic wasting syndrome (PMWS), porcine dermatitis, nephropathy syndrome (PDNS), and necrotizing pneumonia. Rapid diagnosis tool for detection of PCV2 plays an important role in the disease control and eradication program. Recombinase polymerase amplification (RPA) assays using a real-time fluorescent detection (PCV2 real-time RPA assay) and RPA combined with lateral flow dipstick (PCV2 RPA LFD assay) were developed targeting the PCV2 ORF2 gene...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28424703/immune-responses-to-bacillus-calmette-gu%C3%A3-rin-vaccination-why-do-they-fail-to-protect-against-mycobacterium-tuberculosis
#15
REVIEW
Juan I Moliva, Joanne Turner, Jordi B Torrelles
Mycobacterium tuberculosis (M.tb), the causative agent of tuberculosis (TB), is the current leading cause of death due to a single infectious organism. Although curable, the broad emergence of multi-, extensive-, extreme-, and total-drug resistant strains of M.tb has hindered eradication efforts of this pathogen. Furthermore, computational models predict a quarter of the world's population is infected with M.tb in a latent state, effectively serving as the largest reservoir for any human pathogen with the ability to cause significant morbidity and mortality...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28424694/immune-responses-in-the-central-nervous-system-are-anatomically-segregated-in-a-non-human-primate-model-of-human-immunodeficiency-virus-infection
#16
Barbara Tavano, Vicky Tsipouri, Gareth A D Hardy, Caroline M Royle, Michael R Keegan, Dietmar Fuchs, Steven Patterson, Neil Almond, Neil Berry, Claire Ham, Deborah Ferguson, Adriano Boasso
The human immunodeficiency virus (HIV) accesses the central nervous system (CNS) early during infection, leading to HIV-associated cognitive impairment and establishment of a viral reservoir. Here, we describe a dichotomy in inflammatory responses in different CNS regions in simian immunodeficiency virus (SIV)-infected macaques, a model for HIV infection. We found increased expression of inflammatory genes and perivascular leukocyte infiltration in the midbrain of SIV-infected macaques. Conversely, the frontal lobe showed downregulation of inflammatory genes associated with interferon-γ and interleukin-6 pathways, and absence of perivascular cuffing...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28424674/global-fecal-and-plasma-metabolic-dynamics-related-to-helicobacter-pylori-eradication
#17
Theresa Wan-Chen Yap, Alex Hwong-Ruey Leow, Ahmad Najib Azmi, Damien L Callahan, Guillermo I Perez-Perez, Mun-Fai Loke, Khean-Lee Goh, Jamuna Vadivelu
Background:Helicobacter pylori colonizes the gastric mucosa of more than half of the world's population. There is increasing evidence H. pylori protects against the development of obesity and childhood asthma/allergies in which the development of these diseases coincide with transient dysbiosis. However, the mechanism underlying the association of H. pylori eradication with human metabolic and immunological disorders is not well-established. In this study, we aimed to investigate the local and systemic effects of H...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28424663/antimicrobial-photodynamic-therapy-against-endodontic-enterococcus-faecalis-and-candida-albicans-mono-and-mixed-biofilms-in-the-presence-of-photosensitizers-a-comparative-study-with-classical-endodontic-irrigants
#18
Patrícia Diogo, Chantal Fernandes, Francisco Caramelo, Marta Mota, Isabel M Miranda, M A F Faustino, M G P M S Neves, Marciana P Uliana, Kleber T de Oliveira, João M Santos, Teresa Gonçalves
Endodontic biofilms eradication from the infected root canal system remains as the primary focus in endodontic field. In this study, it was assessed the efficacy of antimicrobial Photodynamic Therapy (aPDT) with the Zn(II)chlorin e6 methyl ester (Zn(II)e6Me) activated by red light against monospecies and mixed biofilms of Enterococcus faecalis and Candida albicans. The results were compared with the ones obtained with Rose Bengal (RB), Toluidine Blue-O (TBO), the synthetic tetracationic porphyrin (TMPyP) as well as classical endodontic irrigants (3% NaOCl, 17% EDTA and 2% CHX)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28424248/splenic-ly6g-high-mature-and-ly6g-int-immature-neutrophils-contribute-to-eradication-of-s-pneumoniae
#19
Justin F Deniset, Bas G Surewaard, Woo-Yong Lee, Paul Kubes
The spleen plays an integral protective role against encapsulated bacterial infections. Our understanding of the associated mechanisms is limited to thymus-independent (TI) antibody production by the marginal zone (MZ) B cells, leaving the contribution of other splenic compartments such as the red pulp (RP) largely unexplored despite asplenic patients succumbing to the infection in the first 24 h, suggesting important antibody-independent mechanisms. In this study, using time-lapse intravital imaging of the spleen, we identify a tropism for Streptococcus pneumoniae in this organ mediated by tissue-resident MZ and RP macrophages and a protective role for two distinct splenic neutrophil populations (Ly6G(hi) and Ly6G(intermediate)) residing in the splenic RP...
April 19, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28423949/intranasal-chitosan-g-hp%C3%AE-cd-nanoparticles-of-efavirenz-for-the-cns-targeting
#20
Aarti Belgamwar, Shagufta Khan, Pramod Yeole
Incompetence of antiretrovirals (ARV) in complete eradication of HIV from the CNS is the biggest issue in neuro-AIDS treatment. The ineffectiveness is largely due to the poor penetration of ARV. Hence, the present study is attempted to enhance the CNS uptake of efavirenz (EFV) by designing intranasal EFV nanoparticles (EFV-NPs). EFV-NPs were fabricated using chitosan-g-HPβCD by ionic gelation method and optimized using quadratic response surface methodology (RSM) employing two-factor, five-level circumscribed central composite design...
April 19, 2017: Artificial Cells, Nanomedicine, and Biotechnology
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