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Neglected tropical diseases

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https://www.readbyqxmd.com/read/28630200/treatment-of-experimental-visceral-leishmaniasis-with-single-dose-liposomal-amphotericin-b-pharmacodynamics-and-biodistribution-at-different-stages-of-disease
#1
Andrew A Voak, Andy Harris, Zeeshan Qaiser, Simon L Croft, Karin Seifert
Visceral leishmaniasis is a neglected tropical disease, which causes significant morbidity and mortality worldwide. Characterising the pharmacokinetics and pharmacodynamics of anti-leishmanial drugs in pre-clinical models is important for drug development and use. Here we investigated the pharmacodynamics and drug distribution of AmBisome® in L. donovani infected BALB/c mice at three different dose levels and two different time points after infection. We additionally compared drug levels in plasma, liver and spleen in infected and uninfected BALB/c mice over time...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28626451/dependency-of-b-1-cells-in-the-maintenance-of-splenic-interleukin-10-producing-cells-and-impairment-of-macrophage-resistance-in-visceral-leishmaniasis
#2
Angélica Fernandes Arcanjo, Dirlei Nico, Gabriellen Menezes Migliani de Castro, Yasmin da Silva Fontes, Paula Saltarelli, Debora Decote-Ricardo, Marise P Nunes, Antônio Ferreira-Pereira, Clarisa B Palatnik-de-Sousa, Célio G Freire-de-Lima, Alexandre Morrot
Visceral leishmaniasis is a neglected disease caused by Leishmania protozoa parasites transmitted by infected sand fly vectors. This disease represents the second in mortality among tropical infections and is associated to a profound immunosuppression state of the host. The hallmark of this infection-induced host immunodeviation is the characteristic high levels of the regulatory interleukin-10 (IL-10) cytokine. In the present study, we investigated the role of B-1 cells in the maintenance of splenic IL-10 levels that could interfere with resistance to parasite infection...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28622332/comparison-of-monocyte-gene-expression-among-patients-with-neurocysticercosis-associated-epilepsy-idiopathic-epilepsy-and-idiopathic-headaches-in-india
#3
Vasudevan Prabhakaran, Douglas A Drevets, Govindan Ramajayam, Josephine J Manoj, Michael P Anderson, Jay S Hanas, Vedantam Rajshekhar, Anna Oommen, Hélène Carabin
BACKGROUND: Neurocysticercosis (NCC), a neglected tropical disease, inflicts substantial health and economic costs on people living in endemic areas such as India. Nevertheless, accurate diagnosis using brain imaging remains poorly accessible and too costly in endemic countries. The goal of this study was to test if blood monocyte gene expression could distinguish patients with NCC-associated epilepsy, from NCC-negative imaging lesion-free patients presenting with idiopathic epilepsy or idiopathic headaches...
June 16, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28620610/molecular-detection-of-tick-borne-pathogen-diversities-in-ticks-from-livestock-and-reptiles-along-the-shores-and-adjacent-islands-of-lake-victoria-and-lake-baringo-kenya
#4
David Omondi, Daniel K Masiga, Burtram C Fielding, Edward Kariuki, Yvonne Ukamaka Ajamma, Micky M Mwamuye, Daniel O Ouso, Jandouwe Villinger
Although diverse tick-borne pathogens (TBPs) are endemic to East Africa, with recognized impact on human and livestock health, their diversity and specific interactions with tick and vertebrate host species remain poorly understood in the region. In particular, the role of reptiles in TBP epidemiology remains unknown, despite having been implicated with TBPs of livestock among exported tortoises and lizards. Understanding TBP ecologies, and the potential role of common reptiles, is critical for the development of targeted transmission control strategies for these neglected tropical disease agents...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28619684/is-usutu-virus-ready-for-prime-time
#5
EDITORIAL
Jason A Tetro
Although considered a neglected tropical disease, the mosquito-borne Usutu virus has demonstrated signs of emergence from Africa to Europe. While human cases are infrequent, the potential for neuroinvasive infection, even in immunocompetent individuals, suggests a need for increased research into virus biology and pathogenesis, as well as rapid measures for diagnosis and environmental surveillance.
June 12, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28611925/prevalence-and-correlates-of-intestinal-parasites-among-patients-admitted-to-mirembe-national-mental-health-hospital-dodoma-tanzania
#6
Azan A Nyundo, David Z Munisi, Ainory P Gesase
BACKGROUND: Neglected tropical diseases continue to be one of the leading causes of morbidity and mortality in the developing world. Psychiatric patients are among groups at risk for parasitic infection although control and monitoring programs largely overlook this population. This study aimed at determining prevalence and factors associated with intestinal parasitic infection among patients admitted to a psychiatric facility. METHOD: The study followed cross-sectional design; all the residing patients that met the inclusion criteria were included in the survey...
2017: Journal of Parasitology Research
https://www.readbyqxmd.com/read/28602837/a-review-on-epidemiology-global-prevalence-and-economical-losses-of-fasciolosis-in-ruminants
#7
REVIEW
Khalid Mehmood, Hui Zhang, Ahmad Jawad Sabir, Rao Zahid Abbas, Muhammad Ijaz, Aneela Zameer Durrani, Muhammad Hassan Saleem, Mujeeb Ur Rehman, Muhammad Kashif Iqbal, Yajing Wang, Hafiz Ishfaq Ahmad, Tariq Abbas, Riaz Hussain, Muhammad Taslim Ghori, Sadaqat Ali, Aman Ullah Khan, Jiakui Li
Fasciolosis is an important plant borne trematode zoonosis in ruminants caused by the Fasciola hepatica and Fasciola gigentica, It is classified as a neglected tropical disease and found in more than 50 countries especially where sheep and cattle are reared. Fasciolosis is a serious animal health problems in many rural and urban areas of world, causing significant financial losses due to decrease in production and viscera condemnation in animals. Accurate diagnosis of fasciolosis is always remained a challenging task for the field practitioners...
June 7, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28600214/validation-of-onchocerciasis-biomarker-n-acetyltyramine-o-glucuronide-natog
#8
Daniel Globisch, Lisa M Eubanks, Ryan J Shirey, Kenneth M Pfarr, Samuel Wanji, Alexander Y Debrah, Achim Hoerauf, Kim D Janda
The Neglected Tropical Disease onchocerciasis is a parasitic disease. Despite many control programmes by the World Health Organization (WHO), large communities in West and Central Africa are still affected. Besides logistic challenges during biannual mass drug administration, the lack of a robust, point-of-care diagnostic is limiting successful eradication of onchocerciasis. Towards the implementation of a non-invasive and point-of-care diagnostic, we have recently reported the discovery of the biomarker N-acetyltyramine-O-glucuronide (NATOG) in human urine samples using a metabolomics-mining approach...
May 29, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28597822/fungi-that-infect-humans
#9
Julia R Köhler, Bernhard Hube, Rosana Puccia, Arturo Casadevall, John R Perfect
Fungi must meet four criteria to infect humans: growth at human body temperatures, circumvention or penetration of surface barriers, lysis and absorption of tissue, and resistance to immune defenses, including elevated body temperatures. Morphogenesis between small round, detachable cells and long, connected cells is the mechanism by which fungi solve problems of locomotion around or through host barriers. Secretion of lytic enzymes, and uptake systems for the released nutrients, are necessary if a fungus is to nutritionally utilize human tissue...
June 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28592266/urgent-needs-in-fostering-neglected-tropical-diseases-ntds-laboratory-capacity-in-who-western-pacific-region-results-from-the-external-quality-assessment-on-ntds-diagnosis-in-2012-2015
#10
Yan Lu, Glenda Gonzales, Shao-Hong Chen, Hao Li, Yu-Chun Cai, Yan-Hong Chu, Lin Ai, Mu-Xin Chen, Hai-Ning Chen, Jia-Xu Chen
BACKGROUND: Neglected tropical diseases (NTDs) are a heterogeneous group of mainly chronic, debilitating and often stigmatizing diseases that largely affects low-income and politically marginalized populations, causing a large burden of public health, social and economies in the NTDs endemic countries. NTDs are caused by infections with a range of pathogen, including bacteria, parasites, protozoa and viruses. The accurate diagnosis of NTDs is important for reducing morbidity, preventing mortality and for monitoring of control programs...
June 8, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28590590/repurposing-of-human-kinase-inhibitors-in-neglected-protozoan-diseases
#11
Maria Dichiara, Agostino Marrazzo, Orazio Prezzavento, Simona Collina, Antonio Rescifina, Emanuele Amata
Human African trypanosomiasis (HAT), Chagas disease and leishmaniasis, belong to a group of infectious diseases defined as neglected tropical diseases, induced by infection with protozoan parasites named trypanosomatids. Current drugs present several issues and the development of new candidates appears to be needed. The majority of the current therapeutic trypanosomatid targets are represented by enzymes or cell surface receptors. Among these, eukaryotic protein kinases represent a major group of protein targets whose modulation may be beneficial for the treatment of neglected tropical protozoan diseases...
June 7, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28586364/intracellular-zinc-flux-causes-reactive-oxygen-species-mediated-mitochondrial-dysfunction-leading-to-cell-death-in-leishmania-donovani
#12
Anjali Kumari, Krishn Pratap Singh, Abhishek Mandal, Ranjeet Kumar Paswan, Preeti Sinha, Pradeep Das, Vahab Ali, Sanjiva Bimal, Chandra Shekhar Lal
Leishmaniasis caused by Leishmania parasite is a global threat to public health and one of the most neglected tropical diseases. Therefore, the discovery of novel drug targets and effective drug is a major challenge and an important goal. Leishmania is an obligate intracellular parasite that alternates between sand fly and human host. To survive and establish infections, Leishmania parasites scavenge and internalize nutrients from the host. Nevertheless, host cells presents mechanism like nutrient restriction to inhibit microbial growth and control infection...
2017: PloS One
https://www.readbyqxmd.com/read/28582412/accuracy-of-parasitological-and-immunological-tests-for-the-screening-of-human-schistosomiasis-in-immigrants-and-refugees-from-african-countries-an-approach-with-latent-class-analysis
#13
Anna Beltrame, Massimo Guerriero, Andrea Angheben, Federico Gobbi, Ana Requena-Mendez, Lorenzo Zammarchi, Fabio Formenti, Francesca Perandin, Dora Buonfrate, Zeno Bisoffi
BACKGROUND: Schistosomiasis is a neglected infection affecting millions of people, mostly living in sub-Saharan Africa. Morbidity and mortality due to chronic infection are relevant, although schistosomiasis is often clinically silent. Different diagnostic tests have been implemented in order to improve screening and diagnosis, that traditionally rely on parasitological tests with low sensitivity. Aim of this study was to evaluate the accuracy of different tests for the screening of schistosomiasis in African migrants, in a non endemic setting...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28579276/are-public-private-partnerships-the-solution-to-tackle-neglected-tropical-diseases-a-systematic-review-of-the-literature
#14
REVIEW
Céline Aerts, Temmy Sunyoto, Fabrizio Tediosi, Elisa Sicuri
Pharmaceutical companies are reluctant to invest in research and development (R&D) of products for neglected tropical diseases (NTDs) mainly due to the low ability-to-pay of health insurance systems and of potential consumers. The available preventive and curative interventions for NTDs mostly rely on old technologies and products that are often not adequate. Moreover, NTDs mostly affect populations living in remote rural areas and conflict zones, thereby hampering access to healthcare. The challenges posed by NTDs have led to the proliferation of a variety of public-private partnerships (PPPs) in the last decades...
May 19, 2017: Health Policy
https://www.readbyqxmd.com/read/28578742/applicability-of-plant-based-products-in-the-treatment-of-trypanosoma-cruzi-and-trypanosoma-brucei-infections-a-systematic-review-of-preclinical-in-vivo-evidence
#15
Rodrigo M Pereira, Glícia M Z Greco, Andreia M Moreira, Pablo F Chagas, Ivo S Caldas, Reggiani V Gonçalves, Rômulo D Novaes
Chagas disease and sleeping sickness are neglected tropical diseases closely related to poverty, for which the development of plant-derived treatments has not been a promising prospect. Thus, we systematicaly review the preclinical in vivo evidence on the applicability of plant-based products in the treatment of Trypanosoma cruzi and Trypanosoma brucei infections. Characteristics such as disease models, treatments, toxicological safety and methodological bias were analysed. We recovered 66 full text articles from 16 countries investigating 91 plant species...
June 5, 2017: Parasitology
https://www.readbyqxmd.com/read/28570369/drug-interactions-and-the-role-of-pharmacokinetic-trials-in-guiding-choices-in-first-line-hiv-therapy-in-low-income-and-middle-income-countries
#16
Kay Seden, Marta Boffito, Saye Khoo
PURPOSE OF REVIEW: Low- and middle-income countries (LMICs) face specific challenges in the treatment of people living with HIV. Drug-drug interactions (DDIs) involving antiretrovirals (ARVs) are prevalent in all settings and have considerable potential to cause clinical harm to patients via toxicity or reduced efficacy of treatment. Differing comorbidities, endemic infections and traditional medicines may complicate ARV therapy (ART) in LMICs, which usually takes a public health approach in these settings, with fewer alternative regimens available...
July 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/28566191/th2-and-th1-responses-clear-and-hidden-sides-of-immunity-against-intestinal-helminths
#17
REVIEW
Alba Cortés, Carla Muñoz-Antoli, J Guillermo Esteban, Rafael Toledo
Intestinal helminthiases affect millions of people worldwide, mainly in developing regions, where they cause a significant negative impact on human health and socioeconomic growth of affected populations. However, intestinal helminthiases are still among the most neglected tropical diseases. Protective immunity against intestinal helminths is associated with development of type 2 responses. Nevertheless, in some host-intestinal helminth combinations, local Th1 responses are initiated, inducing chronicity. The usage of helminth-mouse models is useful for elucidating the mechanisms behind the initiation of each type of response...
May 26, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28555584/ending-neglected-tropical-diseases
#18
Vijay Shankar Balakrishnan
No abstract text is available yet for this article.
June 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28555470/spatio-temporal-dynamics-of-schistosomiasis-in-rwanda-between-2001-and-2012-impact-of-the-national-neglected-tropical-disease-control-programme
#19
Elias Nyandwi, Tom Veldkamp, Frank Badu Osei, Sherif Amer
Schistosomiasis is recognised as a major public health problem in Rwanda. We aimed to identify the spatio-temporal dynamics of its distribution at a fine-scale spatial resolution and to explore the impact of control programme interventions. Incidence data of Schistosoma mansoni infection at 367 health facilities were obtained for the period 2001-2012. Disease cluster analyses were conducted using spatial scan statistics and geographic information systems. The impact of control interventions was assessed for three distinct sub-periods...
May 8, 2017: Geospatial Health
https://www.readbyqxmd.com/read/28555183/the-road-to-dog-rabies-control-and-elimination-what-keeps-us-from-moving-faster
#20
Anna S Fahrion, Louise H Taylor, Gregorio Torres, Thomas Müller, Salome Dürr, Lea Knopf, Katinka de Balogh, Louis H Nel, Mary Joy Gordoncillo, Bernadette Abela-Ridder
Rabies, a vaccine preventable neglected tropical disease, still claims an estimated 35,000-60,000 human lives annually. The international community, with more than 100 endemic countries, has set a global target of 0 human deaths from dog-transmitted rabies by 2030. While it has been proven in several countries and regions that elimination of rabies as a public health problem is feasible and tools are available, rabies deaths globally have not yet been prevented effectively. While there has been extensive rabies research, specific areas of implementation for control and elimination have not been sufficiently addressed...
2017: Frontiers in Public Health
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