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PLoS Neglected Tropical Diseases

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https://www.readbyqxmd.com/read/27918578/correction-genome-wide-comparative-analysis-of-chemosensory-gene-families-in-five-tsetse-fly-species
#1
Rosaline Macharia, Paul Mireji, Edwin Murungi, Grace Murilla, Alan Christoffels, Serap Aksoy, Daniel Masiga
[This corrects the article DOI: 10.1371/journal.pntd.0004421.].
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27918574/quantitative-laser-biospeckle-method-for-the-evaluation-of-the-activity-of-trypanosoma-cruzi-using-vdrl-plates-and-digital-analysis
#2
Hilda Cristina Grassi, Lisbette C García, María Lorena Lobo-Sulbarán, Ana Velásquez, Francisco A Andrades-Grassi, Humberto Cabrera, Jesús E Andrades-Grassi, Efrén D J Andrades
In this paper we report a quantitative laser Biospeckle method using VDRL plates to monitor the activity of Trypanosoma cruzi and the calibration conditions including three image processing algorithms and three programs (ImageJ and two programs designed in this work). Benznidazole was used as a test drug. Variable volume (constant density) and variable density (constant volume) were used for the quantitative evaluation of parasite activity in calibrated wells of the VDRL plate. The desiccation process within the well was monitored as a function of volume and of the activity of the Biospeckle pattern of the parasites as well as the quantitative effect of the surface parasite quantity (proportion of the object's plane)...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27918573/benchmarking-the-cost-per-person-of-mass-treatment-for-selected-neglected-tropical-diseases-an-approach-based-on-literature-review-and-meta-regression-with-web-based-software-application
#3
Christopher Fitzpatrick, Fiona M Fleming, Matthew Madin-Warburton, Timm Schneider, Filip Meheus, Kingsley Asiedu, Anthony W Solomon, Antonio Montresor, Gautam Biswas
BACKGROUND: Advocacy around mass treatment for the elimination of selected Neglected Tropical Diseases (NTDs) has typically put the cost per person treated at less than US$ 0.50. Whilst useful for advocacy, the focus on a single number misrepresents the complexity of delivering "free" donated medicines to about a billion people across the world. We perform a literature review and meta-regression of the cost per person per round of mass treatment against NTDs. We develop a web-based software application (https://healthy...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911953/correction-environmental-nontuberculous-mycobacteria-in-the-hawaiian-islands
#4
Jennifer R Honda, Nabeeh A Hasan, Rebecca M Davidson, Myra D Williams, L Elaine Epperson, Paul R Reynolds, Terry Smith, Elena Iakhiaeva, Matthew J Bankowski, Richard J Wallace, Edward D Chan, Joseph O Falkinham, Michael Strong
[This corrects the article DOI: 10.1371/journal.pntd.0005068.].
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911903/transfected-babesia-bovis-expressing-a-tick-gst-as-a-live-vector-vaccine
#5
Daiane P Oldiges, Jacob M Laughery, Nelson Junior Tagliari, Ronaldo Viana Leite Filho, William C Davis, Itabajara da Silva Vaz, Carlos Termignoni, Donald P Knowles, Carlos E Suarez
The Rhipicephalus microplus tick is a notorious blood-feeding ectoparasite of livestock, especially cattle, responsible for massive losses in animal production. It is the main vector for transmission of pathogenic bacteria and parasites, including Babesia bovis, an intraerythrocytic apicomplexan protozoan parasite responsible for bovine Babesiosis. This study describes the development and testing of a live B. bovis vaccine expressing the protective tick antigen glutathione-S-transferase from Haemaphysalis longicornis (HlGST)...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911902/comparison-of-the-estimated-incidence-of-acute-leptospirosis-in-the-kilimanjaro-region-of-tanzania-between-2007-08-and-2012-14
#6
Michael J Maze, Holly M Biggs, Matthew P Rubach, Renee L Galloway, Shama Cash-Goldwasser, Kathryn J Allan, Jo E B Halliday, Julian T Hertz, Wilbrod Saganda, Bingileki F Lwezaula, Sarah Cleaveland, Blandina T Mmbaga, Venance P Maro, John A Crump
BACKGROUND: The sole report of annual leptospirosis incidence in continental Africa of 75-102 cases per 100,000 population is from a study performed in August 2007 through September 2008 in the Kilimanjaro Region of Tanzania. To evaluate the stability of this estimate over time, we estimated the incidence of acute leptospirosis in Kilimanjaro Region, northern Tanzania for the time period 2012-2014. METHODOLOGY AND PRINCIPAL FINDINGS: Leptospirosis cases were identified among febrile patients at two sentinel hospitals in the Kilimanjaro Region...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911900/clinical-and-pharmacological-investigation-of-myotoxicity-in-sri-lankan-russell-s-viper-daboia-russelii-envenoming
#7
Anjana Silva, Christopher Johnston, Sanjaya Kuruppu, Daniela Kneisz, Kalana Maduwage, Oded Kleifeld, A Ian Smith, Sisira Siribaddana, Nicholas A Buckley, Wayne C Hodgson, Geoffrey K Isbister
BACKGROUND: Sri Lankan Russell's viper (Daboia russelii) envenoming is reported to cause myotoxicity and neurotoxicity, which are different to the effects of envenoming by most other populations of Russell's vipers. This study aimed to investigate evidence of myotoxicity in Russell's viper envenoming, response to antivenom and the toxins responsible for myotoxicity. METHODOLOGY AND FINDINGS: Clinical features of myotoxicity were assessed in authenticated Russell's viper bite patients admitted to a Sri Lankan teaching hospital...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911897/heterologous-protection-against-asian-zika-virus-challenge-in-rhesus-macaques
#8
Matthew T Aliota, Dawn M Dudley, Christina M Newman, Emma L Mohr, Dane D Gellerup, Meghan E Breitbach, Connor R Buechler, Mustafa N Rasheed, Mariel S Mohns, Andrea M Weiler, Gabrielle L Barry, Kim L Weisgrau, Josh A Eudailey, Eva G Rakasz, Logan J Vosler, Jennifer Post, Saverio Capuano, Thaddeus G Golos, Sallie R Permar, Jorge E Osorio, Thomas C Friedrich, Shelby L O'Connor, David H O'Connor
BACKGROUND: Zika virus (ZIKV; Flaviviridae, Flavivirus) was declared a public health emergency of international concern by the World Health Organization (WHO) in February 2016, because of the evidence linking infection with ZIKV to neurological complications, such as Guillain-Barre Syndrome in adults and congenital birth defects including microcephaly in the developing fetus. Because development of a ZIKV vaccine is a top research priority and because the genetic and antigenic variability of many RNA viruses limits the effectiveness of vaccines, assessing whether immunity elicited against one ZIKV strain is sufficient to confer broad protection against all ZIKV strains is critical...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911896/different-mutations-in-a-p-type-atpase-transporter-in-leishmania-parasites-are-associated-with-cross-resistance-to-two-leading-drugs-by-distinct-mechanisms
#9
Christopher Fernandez-Prada, Isabel M Vincent, Marie-Christine Brotherton, Mathew Roberts, Gaétan Roy, Luis Rivas, Philippe Leprohon, Terry K Smith, Marc Ouellette
Leishmania infantum is an etiological agent of the life-threatening visceral form of leishmaniasis. Liposomal amphotericin B (AmB) followed by a short administration of miltefosine (MF) is a drug combination effective for treating visceral leishmaniasis in endemic regions of India. Resistance to MF can be due to point mutations in the miltefosine transporter (MT). Here we show that mutations in MT are also observed in Leishmania AmB-resistant mutants. The MF-induced MT mutations, but not the AmB induced mutations in MT, alter the translocation/uptake of MF...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911895/dna-microarray-detection-of-18-important-human-blood-protozoan-species
#10
Mu-Xin Chen, Lin Ai, Jun-Hu Chen, Xin-Yu Feng, Shao-Hong Chen, Yu-Chun Cai, Yan Lu, Xiao-Nong Zhou, Jia-Xu Chen, Wei Hu
BACKGROUND: Accurate detection of blood protozoa from clinical samples is important for diagnosis, treatment and control of related diseases. In this preliminary study, a novel DNA microarray system was assessed for the detection of Plasmodium, Leishmania, Trypanosoma, Toxoplasma gondii and Babesia in humans, animals, and vectors, in comparison with microscopy and PCR data. Developing a rapid, simple, and convenient detection method for protozoan detection is an urgent need. METHODOLOGY/PRINCIPAL FINDINGS: The microarray assay simultaneously identified 18 species of common blood protozoa based on the differences in respective target genes...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911894/head-lice-of-pygmies-reveal-the-presence-of-relapsing-fever-borreliae-in-the-republic-of-congo
#11
Nadia Amanzougaghene, Jean Akiana, Géor Mongo Ndombe, Bernard Davoust, Nardiouf Sjelin Nsana, Henri-Joseph Parra, Florence Fenollar, Didier Raoult, Oleg Mediannikov
BACKGROUND: Head lice, Pediculus humanus capitis, occur in four divergent mitochondrial clades (A, B, C and D), each having particular geographical distributions. Recent studies suggest that head lice, as is the case of body lice, can act as a vector for louse-borne diseases. Therefore, understanding the genetic diversity of lice worldwide is of critical importance to our understanding of the risk of louse-borne diseases. METHODOLOGY/PRINCIPAL FINDINGS: Here, we report the results of the first molecular screening of pygmies' head lice in the Republic of Congo for seven pathogens and an analysis of lice mitochondrial clades...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906988/atypical-manifestations-of-cutaneous-leishmaniasis-in-a-region-endemic-for-leishmania-braziliensis-clinical-immunological-and-parasitological-aspects
#12
Luiz Henrique Guimarães, Adriano Queiroz, Juliana A Silva, Silvana C Silva, Viviane Magalhães, Ednaldo L Lago, Paulo Roberto L Machado, Olívia Bacellar, Mary E Wilson, Stephen M Beverley, Edgar M Carvalho, Albert Schriefer
BACKGROUND: Atypical cutaneous leishmaniasis (ACL) has become progressively more frequent in Corte de Pedra, Northeast Brazil. Herein we characterize clinical presentation, antimony response, cytokine production and parasite strains prevailing in ACL. METHODOLOGY/PRINCIPAL FINDINGS: Between 2005 and 2012, 51 ACL (cases) and 51 temporally matched cutaneous leishmaniasis (CL) subjects (controls) were enrolled and followed over time in Corte de Pedra. Clinical and therapeutic data were recorded for all subjects...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906987/human-igg-antibody-response-to-aedes-nterm-34kda-salivary-peptide-an-epidemiological-tool-to-assess-vector-control-in-chikungunya-and-dengue-transmission-area
#13
Emmanuel Elanga Ndille, Souleymane Doucoure, Anne Poinsignon, François Mouchet, Sylvie Cornelie, Eric D'Ortenzio, Jean Sébastien DeHecq, Franck Remoue
BACKGROUND: Arboviral diseases are an important public health concerns. Vector control remains the sole strategy to fight against these diseases. Because of the important limits of methods currently used to assess human exposure to Aedes mosquito bites, much effort is being devoted to develop new indicators. Recent studies have reported that human antibody (Ab) responses to Aedes aegypti Nterm-34kDa salivary peptide represent a promising biomarker tool to evaluate the human-Aedes contact...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906985/egypt-its-artists-intellectuals-and-neglected-tropical-diseases
#14
EDITORIAL
Peter J Hotez, Moustapha Kassem
No abstract text is available yet for this article.
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906982/using-community-level-prevalence-of-loa-loa-infection-to-predict-the-proportion-of-highly-infected-individuals-statistical-modelling-to-support-lymphatic-filariasis-and-onchocerciasis-elimination-programs
#15
Daniela K Schlüter, Martial L Ndeffo-Mbah, Innocent Takougang, Tony Ukety, Samuel Wanji, Alison P Galvani, Peter J Diggle
Lymphatic Filariasis and Onchocerciasis (river blindness) constitute pressing public health issues in tropical regions. Global elimination programs, involving mass drug administration (MDA), have been launched by the World Health Organisation. Although the drugs used are generally well tolerated, individuals who are highly co-infected with Loa loa are at risk of experiencing serious adverse events. Highly infected individuals are more likely to be found in communities with high prevalence. An understanding of the relationship between individual infection and population-level prevalence can therefore inform decisions on whether MDA can be safely administered in an endemic community...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906979/a-phosphorylcholine-containing-glycolipid-like-antigen-present-on-the-surface-of-infective-stage-larvae-of-ascaris-spp-is-a-major-antibody-target-in-infected-pigs-and-humans
#16
Johnny Vlaminck, Dries Masure, Tao Wang, Peter Nejsum, Cornelis H Hokke, Peter Geldhof
BACKGROUND: The pig parasite Ascaris suum plays and important role in veterinary medicine and represents a suitable model for A. lumbricoides, which infects over 800 million people. In pigs, continued exposure to Ascaris induces immunity at the level of the gut, protecting the host against migrating larvae. The objective of this study was to identify and characterize parasite antigens targeted by this local immune response that may be crucial for parasite invasion and establishment and to evaluate their protective and diagnostic potential...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906977/development-of-a-pcr-assay-to-detect-low-level-trypanosoma-cruzi-in-blood-specimens-collected-with-paxgene-blood-dna-tubes-for-clinical-trials-treating-chagas-disease
#17
Bo Wei, Lei Chen, Miho Kibukawa, John Kang, Hetty Waskin, Matthew Marton
Chagas disease is caused by the parasitic infection of Trypanosoma cruzi (T. cruzi). The STOP CHAGAS clinical trial was initiated in 2011 to evaluate posaconazole in treating Chagas disease, with treatment success defined as negative qualitative PCR results of detecting the parasites in blood specimens collected post-treatment. PAXgene Blood DNA tubes were utilized as a simple procedure to collect and process blood specimens. However, the PAXgene blood specimens challenged published T. cruzi PCR methods, resulting in poor sensitivity and reproducibility...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906966/archival-isolates-confirm-a-single-topotype-of-west-nile-virus-in-australia
#18
Bixing Huang, Natalie A Prow, Andrew F van den Hurk, Richard J N Allcock, Peter R Moore, Stephen L Doggett, David Warrilow
West Nile virus is globally wide-spread and causes significant disease in humans and animals. The evolution of West Nile virus Kunjin subtype in Australia (WNVKUN) was investigated using archival samples collected over a period of 50 years. Based on the pattern of fixed amino acid substitutions and time-stamped molecular clock analyses, a single long-term lineage (or topotype) was inferred. This implies that a bottleneck exists such that regional strains eventually die out and are replaced with strains from a single source...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906962/population-density-climate-variables-and-poverty-synergistically-structure-spatial-risk-in-urban-malaria-in-india
#19
Mauricio Santos-Vega, Menno J Bouma, Vijay Kohli, Mercedes Pascual
BACKGROUND: The world is rapidly becoming urban with the global population living in cities projected to double by 2050. This increase in urbanization poses new challenges for the spread and control of communicable diseases such as malaria. In particular, urban environments create highly heterogeneous socio-economic and environmental conditions that can affect the transmission of vector-borne diseases dependent on human water storage and waste water management. Interestingly India, as opposed to Africa, harbors a mosquito vector, Anopheles stephensi, which thrives in the man-made environments of cities and acts as the vector for both Plasmodium vivax and Plasmodium falciparum, making the malaria problem a truly urban phenomenon...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906961/tracking-insecticide-resistance-in-mosquito-vectors-of-arboviruses-the-worldwide-insecticide-resistance-network-win
#20
Vincent Corbel, Nicole L Achee, Fabrice Chandre, Mamadou B Coulibaly, Isabelle Dusfour, Dina M Fonseca, John Grieco, Waraporn Juntarajumnong, Audrey Lenhart, Ademir J Martins, Catherine Moyes, Lee Ching Ng, João Pinto, Kamaraju Raghavendra, Hassan Vatandoost, John Vontas, David Weetman, Florence Fouque, Raman Velayudhan, Jean-Philippe David
No abstract text is available yet for this article.
December 2016: PLoS Neglected Tropical Diseases
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