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https://www.readbyqxmd.com/read/28333400/an-improved-model-of-the-trypanosoma-brucei-ctp-synthetase-glutaminase-domain-acivicin-complex
#1
Juliana Oliveira de Souza, Alice Dawson, William Nigel Hunter
The natural product acivicin inhibits the glutaminase activity of CTP synthetase and is a potent lead compound for drug discovery in the area of neglected tropical diseases, specifically trypanosomaisis. A 2.1 Å resolution crystal structure of the acivicin adduct with the glutaminase domain from Trypanosoma brucei CTP synthetase has been deposited in the Protein Data Bank and provides a template for structure-based approaches to design new inhibitors. However, our assessment of that data identified deficiencies in the model...
March 23, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28330495/building-a-global-schistosomiasis-alliance-an-opportunity-to-join-forces-to-fight-inequality-and-rural-poverty
#2
Lorenzo Savioli, Marco Albonico, Daniel G Colley, Rodrigo Correa-Oliveira, Alan Fenwick, Will Green, Narcis Kabatereine, Achille Kabore, Naftale Katz, Katharina Klohe, Philip T LoVerde, David Rollinson, J Russell Stothard, Louis-Albert Tchuem Tchuenté, Johannes Waltz, Xiao-Nong Zhou
Schistosomiasis, one of the 17 neglected tropical diseases listed by the World Health Organization, presents a substantial public health and economic burden. Of the 261 million people requiring preventive chemotherapy for schistosomiasis in 2013, 92% of them lived in sub-Saharan Africa and only 12.7% received preventive chemotherapy. Moreover, in 2010, the WHO reported that schistosomiasis mortality could be as high as 280 000 per year in Africa alone.In May 2012 delegates to the sixty-fifth World Health Assembly adopted resolution WHA65...
March 23, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28329123/prevalence-of-chagas-disease-in-the-latin-american-born-population-of-los-angeles
#3
Sheba K Meymandi, Colin J Forsyth, Jonathan Soverow, Salvador Hernandez, Daniel Sanchez, Susan P Montgomery, Mahmoud Traina
Background.: According to an estimate from the Centers for Disease Control and Prevention (CDC), Chagas disease (CD) may affect 1.31% of Latin American immigrants in the United States, with >300 000 cases. However, there is a lack of real-world data to support this estimate. Little is known about the actual prevalence of this neglected tropical disease in the United States, and the bulk of those infected are undiagnosed. Methods.: From April 2008 to May 2014, we screened 4,755 Latin American-born residents of Los Angeles County...
February 12, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28327791/a-tale-of-two-neglected-tropical-infections-using-gis-to-assess-the-spatial-and-temporal-overlap-of-schistosomiasis-and-leprosy-in-a-region-of-minas-gerais-brazil
#4
David Alexander Phillips, José Antonio Ferreira, Deidra Ansah, Herica Sa Teixeira, Uriel Kitron, Thelma de Filippis, Marcelo H de Alcântara, Jessica K Fairley
BACKGROUND: Despite public health efforts to reduce the global burden of leprosy, gaps remain in the knowledge surrounding transmission of infection. Helminth co-infections have been associated with a shift towards the lepromatous end of the disease spectrum, potentially increasing transmission in co-endemic areas. OBJECTIVES: Using this biologically plausible association, we conducted a geographic information systems (GIS) study to investigate the spatial associations of schistosomiasis and leprosy in an endemic area of Minas Gerais (MG), Brazil...
April 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28325371/the-role-of-spatial-statistics-in-the-control-and-elimination-of-neglected-tropical-diseases-in-sub-saharan-africa-a-focus-on-human-african-trypanosomiasis-schistosomiasis-and-lymphatic-filariasis
#5
M C Stanton
Disease control and elimination programmes can benefit greatly from accurate information on the spatial variability of disease risk, particularly when risk is highly spatially heterogeneous. Due to advances in statistical methodology, coupled with the increased availability of geospatial technology, this information is becoming increasingly accessible. In this chapter we describe recent advancements in spatial methods associated with the analysis of disease data measured at the point-level and demonstrate their application to the control and elimination of neglected tropical diseases (NTDs)...
2017: Advances in Parasitology
https://www.readbyqxmd.com/read/28320726/glucantime%C3%A2-causes-oxidative-stress-derived-dna-damage-in-balb-c-mice-infected-by-leishmania-leishmania-infantum
#6
Vanessa Ribeiro Moreira, Luís Cláudio Lima de Jesus, Rossy-Eric Pereira Soares, Luis Douglas Miranda Silva, Bruno Araújo Serra Pinto, Maria Norma Melo, Antonio Marcus de Andrade Paes, Silma Regina Ferreira Pereira
Leishmaniasis is a neglected tropical disease caused by over 20 species of the protozoan parasite Leishmania Regarding treatment, Glucantime® is the first-choice drug recommended by the World Health Organization for the treatment of all types of leishmaniasis. However, the mechanisms of action and toxicity of pentavalent antimonials, including genotoxic effetcs, remain unclear. Therefore, the mechanism by which Glucantime® causes DNA damage was investigated in BALB/c mice infected by Leishmania (Leishmania) infantum and treated with Glucantime® (20 mg/kg for 20 days)...
March 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28319196/h-channels-in-embryonic-biomphalaria-glabrata-cell-membranes-putative-roles-in-snail-host-schistosome-interactions
#7
Brandon J Wright, Utibe Bickham-Wright, Timothy P Yoshino, Meyer B Jackson
The human blood fluke Schistosoma mansoni causes intestinal schistosomiasis, a widespread neglected tropical disease. Infection of freshwater snails Biomphalaria spp. is an essential step in the transmission of S. mansoni to humans, although the physiological interactions between the parasite and its obligate snail host that determine success or failure are still poorly understood. In the present study, the B. glabrata embryonic (Bge) cell line, a widely used in vitro model for hemocyte-like activity, was used to investigate membrane properties, and assess the impact of larval transformation proteins (LTP) on identified ion channels...
March 20, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28319120/plos-neglected-tropical-diseases-2016-reviewer-and-editorial-board-thank-you
#8
EDITORIAL
(no author information available yet)
No abstract text is available yet for this article.
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28318148/barriers-to-innovation-in-human-rabies-prophylaxis-and-treatment-a-causal-analysis-of-insights-from-key-opinion-leaders-and-literature
#9
L H M van de Burgwal, A M G Neevel, C A C M Pittens, A D M E Osterhaus, C E Rupprecht, E Claassen
Rabies is an essentially 100% fatal, zoonotic disease, caused by Lyssaviruses. Currently, the disease is vaccine-preventable with pre- and post-exposure prophylaxis (PrEP and PEP). Still, rabies virus is estimated to cause up to 60,000 human deaths annually, of which the vast majority occurs in rural Asia and Africa, due to the inaccessibility of prophylaxis and non-existence of treatment. Despite these unmet clinical needs, rabies control mainly focuses on the sylvatic reservoir and drug innovation receives relatively little attention compared to other neglected tropical diseases (NTDs)...
March 20, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28316411/particle-induced-x-ray-emission-study-of-blood-samples-of-indian-kala-azar-patients
#10
Sangita Lahiry, Supriya Khanra, Rajiv Kumar, Anindita Chakraborty, Shyam Sundar, Mathummal Sudarshan, Madhumita Manna
Visceral leishmaniasis (VL) or Kala-azar (KA) is a neglected tropical disease caused by protozoan parasite, Leishmania sp. and is fatal, if left untreated. In this study, we measured trace elements (K, Fe, Cu, Zn, Br, Cl, S, Ca, Mn, Cr, Ni, As, Se, Rb and Sr) in the blood of Indian VL patients (32) by particle-induced X-ray emission (PIXE) study. Blood was collected from 36 subjects including healthy controls from Rambagh Kala-azar Hospital, Muzaffarpur, Bihar, India. PIXE experiment was carried out at the Institute of Physics, Bhubaneswar, India and data were analyzed by GUPIXWIN software...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28315147/neglected-tropical-diseases-in-europe-an-emerging-problem-for-health-professionals
#11
Marco Falcone
No abstract text is available yet for this article.
March 17, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28306715/correction-synchrony-of-dengue-incidence-in-ho-chi-minh-city-and-bangkok
#12
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pntd.0005188.].
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28303006/short-course-high-dose-rifampicin-achieves-wolbachia-depletion-predictive-of-curative-outcomes-in-preclinical-models-of-lymphatic-filariasis-and-onchocerciasis
#13
Ghaith Aljayyoussi, Hayley E Tyrer, Louise Ford, Hanna Sjoberg, Nicolas Pionnier, David Waterhouse, Jill Davies, Joanne Gamble, Haelly Metugene, Darren A N Cook, Andrew Steven, Raman Sharma, Ana F Guimaraes, Rachel H Clare, Andrew Cassidy, Kelly L Johnston, Laura Myhill, Laura Hayward, Samuel Wanji, Joseph D Turner, Mark J Taylor, Stephen A Ward
Lymphatic filariasis (LF) and onchocerciasis are priority neglected tropical diseases targeted for elimination. The only safe drug treatment with substantial curative activity against the filarial nematodes responsible for LF (Brugia malayi, Wuchereria bancrofti) or onchocerciasis (Onchocerca volvulus) is doxycycline. The target of doxycycline is the essential endosymbiont, Wolbachia. Four to six weeks doxycycline therapy achieves >90% depletion of Wolbachia in worm tissues leading to blockade of embryogenesis, adult sterility and premature death 18-24 months post-treatment...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28302096/mathematical-analysis-of-a-lymphatic-filariasis-model-with-quarantine-and-treatment
#14
Peter M Mwamtobe, Simphiwe M Simelane, Shirley Abelman, Jean M Tchuenche
BACKGROUND: Lymphatic filariasis is a globally neglected tropical parasitic disease which affects individuals of all ages and leads to an altered lymphatic system and abnormal enlargement of body parts. METHODS: A mathematical model of lymphatic filariaris with intervention strategies is developed and analyzed. Control of infections is analyzed within the model through medical treatment of infected-acute individuals and quarantine of infected-chronic individuals...
March 16, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28301479/ligb-subunit-vaccine-confers-sterile-immunity-against-challenge-in-the-hamster-model-of-leptospirosis
#15
Neida L Conrad, Flávia W Cruz McBride, Jéssica D Souza, Marcelle M Silveira, Samuel Félix, Karla S Mendonça, Cleiton S Santos, Daniel A Athanazio, Marco A Medeiros, Mitermayer G Reis, Odir A Dellagostin, Alan J A McBride
Neglected tropical diseases, including zoonoses such as leptospirosis, have a major impact on rural and poor urban communities, particularly in developing countries. This has led to major investment in antipoverty vaccines that focus on diseases that influence public health and thereby productivity. While the true, global, impact of leptospirosis is unknown due to the lack of adequate laboratory diagnosis, the WHO estimates that incidence has doubled over the last 15 years to over 1 million cases that require hospitalization every year...
March 16, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28293130/treatment-of-tungiasis-with-a-two-component-dimeticone-a-comparison-between-moistening-the-whole-foot-and-directly-targeting-the-embedded-sand-fleas
#16
Per Nordin, Marlene Thielecke, Nicholas Ngomi, George Mukone Mudanga, Ingela Krantz, Hermann Feldmeier
BACKGROUND: Tungiasis (sand flea disease) is caused by the penetration of female sand fleas (Tunga penetrans, Siphonaptera) into the skin. It belongs to the neglected tropical diseases and is prevalent in South America, the Caribbean and sub-Saharan Africa. Tungiasis predominantly affects marginalized populations and resource-poor communities in both urban and rural areas. In the endemic areas, patients do not have access to an effective and safe treatment. A proof-of-principle study in rural Kenya has shown that the application of a two-component dimeticone (NYDA®) which is a mixture of two low viscosity silicone oils caused almost 80% of the embedded sand fleas to lose their viability within 7 days...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/28289849/geo-helminthiasis-among-migrants-in-sicily-a-possible-focus-for-re-emerging-neurocysticercosis-in-europe
#17
Ildebrando Patamia, Piermario Nicotra, Davide Amodeo, Loretta Giuliano, Calogero Edoardo Cicero, Alessandra Nicoletti
A dramatic increasing immigration flow was recorded in Europe during the last years. Only in Sicily 120,239 people arrived in 2014. Immigrants may carry neglected tropical diseases endemic in their origin countries. The aim of our study was to evaluate the frequency of geo-helminthiasis, and in particular of intestinal taeniasis, in a sample of migrants hosted in a large asylum seeker centre in the province of Catania. A stool sample was obtained from all the enrolled subjects and a coproparasitological examination was performed...
March 13, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28286767/emerging-and-neglected-infectious-diseases-insights-advances-and-challenges
#18
REVIEW
Nicholas Israel Nii-Trebi
Infectious diseases are a significant burden on public health and economic stability of societies all over the world. They have for centuries been among the leading causes of death and disability and presented growing challenges to health security and human progress. The threat posed by infectious diseases is further deepened by the continued emergence of new, unrecognized, and old infectious disease epidemics of global impact. Over the past three and half decades at least 30 new infectious agents affecting humans have emerged, most of which are zoonotic and their origins have been shown to correlate significantly with socioeconomic, environmental, and ecological factors...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28286673/construction-of-two-mcherry-plasmids-pxg-mcherry-for-transgenic-leishmania-valuable-tools-for-future-molecular-analysis
#19
Andrés Vacas, Conor Sugden, Óscar Velasco-Rodriguez, Miriam Algarabel-Olona, José Peña-Guerrero, Esther Larrea, Celia Fernández-Rubio, Paul A Nguewa
Leishmania is the causative agent of leishmaniasis, a neglected tropical disease that affects more than 12 million people around the world. Current treatments are toxic and poorly effective due to the acquisition of resistance within Leishmania populations. Thus, the pursuit for new antileishmanial drugs is a priority. The available methods for drug screening based on colorimetric assays using vital dyes are time-consuming. Currently, the use of fluorescent reporter proteins is replacing the use of viability indicator dyes...
2017: Journal of Parasitology Research
https://www.readbyqxmd.com/read/28279455/modelling-the-elimination-of-river-blindness-using-long-term-epidemiological-and-programmatic-data-from-mali-and-senegal
#20
Martin Walker, Wilma A Stolk, Matthew A Dixon, Christian Bottomley, Lamine Diawara, Mamadou O Traoré, Sake J de Vlas, María-Gloria Basáñez
The onchocerciasis transmission models EPIONCHO and ONCHOSIM have been independently developed and used to explore the feasibility of eliminating onchocerciasis from Africa with mass (annual or biannual) distribution of ivermectin within the timeframes proposed by the World Health Organization (WHO) and endorsed by the 2012 London Declaration on Neglected Tropical Diseases (i.e. by 2020/2025). Based on the findings of our previous model comparison, we implemented technical refinements and tested the projections of EPIONCHO and ONCHOSIM against long-term epidemiological data from two West African transmission foci in Mali and Senegal where the observed prevalence of infection was brought to zero circa 2007-2009 after 15-17 years of mass ivermectin treatment...
March 2017: Epidemics
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