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March 2018: PLoS Neglected Tropical Diseases
Liwen Feng, Don Antoine Lanfranchi, Leandro Cotos, Elena Cesar-Rodo, Katharina Ehrhardt, Alice-Anne Goetz, Herbert Zimmermann, François Fenaille, Stephanie A Blandin, Elisabeth Davioud-Charvet
Malaria is a tropical parasitic disease threatening populations in tropical and sub-tropical areas. Resistance to antimalarial drugs has spread all over the world in the past 50 years, thus new drugs are urgently needed. Plasmodione (benzylmenadione series) has been identified as a potent antimalarial early lead drug, acting through a redox bioactivation on asexual and young sexual blood stages. To investigate its metabolism, a series of plasmodione-based tools, including a fully13 C-labelled lead drug and putative metabolites, have been designed and synthesized for drug metabolism investigation...
March 15, 2018: Organic & Biomolecular Chemistry
Rajat Das Gupta, Asm Shahabuddin
This review aimed to compare Bangladesh's Universal Health Coverage (UHC) monitoring framework with the global-level recommendations and to find out the existing gaps of Bangladesh's UHC monitoring framework compared to the global recommendations. In order to reach the aims of the review, we systematically searched two electronic databases - PubMed and Google Scholar - by using appropriate keywords to select articles that describe issues related to UHC and the monitoring framework of UHC applied globally and particularly in Bangladesh...
January 8, 2018: Curēus
Joy Ogbechi, Belinda S Hall, Thomas Sbarrato, Jack Taunton, Anne E Willis, Ronald C Wek, Rachel E Simmonds
Mycolactone is the exotoxin virulence factor of Mycobacterium ulcerans that causes the neglected tropical disease Buruli ulcer. We recently showed it to be a broad spectrum inhibitor of Sec61-dependent co-translational translocation of proteins into the endoplasmic reticulum (ER). An outstanding question is the molecular pathway linking this to its known cytotoxicity. We have now used translational profiling to better understand the reprogramming that occurs in cells exposed to mycolactone. Gene ontology identified enrichment in genes involved in cellular response to stress, and apoptosis signalling among those showing enhanced translation...
March 14, 2018: Cell Death & Disease
Miriam Eddyani, Ghislain E Sopoh, Gilbert Ayelo, Luc V C Brun, Jean-Jacques Roux, Yves Barogui, Dissou Affolabi, William R Faber, Marleen Boelaert, Annelies Van Rie, Françoise Portaels, Bouke C de Jong
Background: The diagnosis of the neglected tropical skin and soft tissue disease Buruli ulcer (BU) is made on clinical and epidemiological grounds, after which treatment with BU-specific antibiotics is initiated empirically. Given the current decline in BU incidence, clinical expertise in the recognition of BU is likely to wane and laboratory confirmation of BU becomes increasingly important. We therefore aimed to determine the diagnostic accuracy of clinical signs and microbiological tests in patients presenting with lesions clinically compatible with BU...
March 10, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Vanessa A Thomas, Heather L Crouse, Kristy O Murray, Deborah C Hsu, Elizabeth A Camp, Andrea T Cruz
OBJECTIVE: The aim of this study was to perform a needs assessment of pediatric (PEM) and general emergency medicine (EM) provider knowledge, comfort, and current practice patterns in the evaluation of pediatric tropical infectious diseases. METHODS: An online survey was developed based on educational priorities identified by an expert panel via modified Delphi methodology. The survey included assessment of providers' typical evaluation, diagnosis, and treatment of tropical diseases and was distributed to PEM and EM providers in 2 large professional organizations...
March 12, 2018: Pediatric Emergency Care
Li Huan-Zhang, Zang Xin-Zhong, Qian Men-Bao, Xue Jing-Bo, Zhou Chang-Hai, Chen Ying-Dan, Tian Tian, Cao Chun-Li, Li Shi-Zhu
Cysticercosis refers to a parasitic infection caused by the larvae of pork tapeworm Taenia solium . It is a parasitic zoonosis and listed by the World Health Organization (WHO) as one of the neglected tropical diseases. Cysticercosis is spreading all over the world through globalization and it mainly epidemic in developing countries. In the southwest and minority nationality areas of China, as a result of the low level of medical and health care, and the unchangeable diet custom, there are still many cases of cysticercosis, which is manifested as a local high prevalence...
February 27, 2018: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
Li Hong-Mei, Ding Wei, Huang Lu-Lu, Qian Ying-Jun, Ma Xue-Jiao, Guan Ya-Yi
OBJECTIVE: To investigate the effect of short-term global health training on tropical diseases in China, so as to provide the reference in professional trainings. METHODS: The study took the short-term global health training project on tropical diseases in China as an example. The structured questionnaires were distributed to each trainee pre- and post-training course. RESULTS: A total of 89 trainees were included in the survey, and 68.5% (61 cases) of the trainees were older than 35 years and 85...
January 8, 2018: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
Guillaume Sallé, Roz Laing, James A Cotton, Kirsty Maitland, Axel Martinelli, Nancy Holroyd, Alan Tracey, Matthew Berriman, W David Smith, George F J Newlands, Eve Hanks, Eileen Devaney, Collette Britton
Some nematode species are economically important parasites of livestock, while others are important human pathogens causing some of the most important neglected tropical diseases. In both humans and animals, anthelmintic drug administration is the main control strategy, but the emergence of drug-resistant worms has stimulated the development of alternative control approaches. Among these, vaccination is considered to be a sustainable and cost effective strategy. Currently, Barbervax® for the ruminant strongylid Haemonchus contortus is the only registered subunit vaccine for a nematode parasite, although a vaccine for the human hookworm Necator americanus is undergoing clinical trials (HOOKVAC consortium)...
March 10, 2018: International Journal for Parasitology
Khansoudaphone Phakhounthong, Pimwadee Chaovalit, Podjanee Jittamala, Stuart D Blacksell, Michael J Carter, Paul Turner, Kheng Chheng, Soeung Sona, Varun Kumar, Nicholas P J Day, Lisa J White, Wirichada Pan-Ngum
BACKGROUND: Dengue fever is a re-emerging viral disease commonly occurring in tropical and subtropical areas. The clinical features and abnormal laboratory test results of dengue infection are similar to those of other febrile illnesses; hence, its accurate and timely diagnosis for providing appropriate treatment is difficult. Delayed diagnosis may be associated with inappropriate treatment and higher risk of death. Early and correct diagnosis can help improve case management and optimise the use of resources such as hospital staff, beds, and intensive care equipment...
March 13, 2018: BMC Pediatrics
Xianjuan Kou, Biao Li, Julia B Olayanju, Justin M Drake, Ning Chen
Moringa oleifera Lam. ( M. oleifera ), which belongs to the Moringaceae family, is a perennial deciduous tropical tree, and native to the south of the Himalayan Mountains in northern India. M. oleifera is rich in proteins, vitamin A, minerals, essential amino acids, antioxidants, and flavonoids, as well as isothiocyanates. The extracts from M. oleifera exhibit multiple nutraceutical or pharmacological functions including anti-inflammatory, antioxidant, anti-cancer, hepatoprotective, neuroprotective, hypoglycemic, and blood lipid-reducing functions...
March 12, 2018: Nutrients
Edeltraud J Lenk, William K Redekop, Marianne Luyendijk, Christopher Fitzpatrick, Louis Niessen, Wilma A Stolk, Fabrizio Tediosi, Adriana J Rijnsburger, Roel Bakker, Jan A C Hontelez, Jan H Richardus, Julie Jacobson, Epke A Le Rutte, Sake J de Vlas, Johan L Severens
BACKGROUND: The control or elimination of neglected tropical diseases (NTDs) has targets defined by the WHO for 2020, reinforced by the 2012 London Declaration. We estimated the economic impact to individuals of meeting these targets for human African trypanosomiasis, leprosy, visceral leishmaniasis and Chagas disease, NTDs controlled or eliminated by innovative and intensified disease management (IDM). METHODS: A systematic literature review identified information on productivity loss and out-of-pocket payments (OPPs) related to these NTDs, which were combined with projections of the number of people suffering from each NTD, country and year for 2011-2020 and 2021-2030...
March 2018: PLoS Neglected Tropical Diseases
Marta Runowska, Dominik Majewski, Karolina Niklas, Mariusz Puszczewicz
Chikungunya virus (CHIKV) is an arthropod-borne alphavirus, transmitted by Aedes aegypti and Aedes albopictus mosquitoes. It is responsible for a febrile illness, typically accompanied by maculopapular rash and severe, incapacitating arthralgia. The disease, although generally self-limiting, frequently evolves into a long-lasting, debilitating rheumatic disorder, which shares many clinical features with rheumatoid arthritis (RA). The underlying mechanism by which CHIKV induces persistent arthritis remains under investigation, however, currently, attention is drawn to the fact, that chronic chikungunya (CHIK) and RA have many common cellular and cytokine pathways involved in their pathogenesis...
March 2, 2018: Clinical and Experimental Rheumatology
Suparak Para, Punchalee Mungkalasut, Makamas Chanda, Issarang Nuchprayoon, Srivicha Krudsood, Chalisa Louicharoen Cheepsunthorn
Background: The protective effect of α-thalassemia, a common hematological disorder in Southeast Asia, against Plasmodium falciparum malaria has been well established. However, there is much less understanding of the effect of α-thalassemia against P. vivax . Here, we aimed to investigate the proportion of α-thalassemia including the impact of α-thalassemia and HbE on the parasitemia of P. vivax in Southeast Asian malaria patients in Thailand. Methods: A total of 210 malaria patients, admitted to the Hospital for Tropical Diseases, Thailand during 2011-2012, consisting of 159 Myanmeses, 13 Karens, 26 Thais, 3 Mons, 3 Laotians, and 6 Cambodians were recruited...
2018: Mediterranean Journal of Hematology and Infectious Diseases
Pierre H H Schneeberger, Jean T Coulibaly, Gordana Panic, Claudia Daubenberger, Morgan Gueuning, Jürg E Frey, Jennifer Keiser
BACKGROUND: Schistosomiasis is a neglected tropical disease burdening millions of people. One drug, praziquantel, is currently used for treatment and control. Clinically relevant drug resistance has not yet been described, but there is considerable heterogeneity in treatment outcomes, ranging from cure to only moderate egg reduction rates. The objectives of this study are to investigate potential worm-induced dysbacteriosis of the gut microbiota and to assess whether a specific microbiome profile could influence praziquantel response...
March 12, 2018: Parasites & Vectors
Arnaud Setondji Amoussouhoui, Ghislain Emmanuel Sopoh, Anita Carolle Wadagni, Roch Christian Johnson, Paulin Aoulou, Inès Elvire Agbo, Jean-Gabin Houezo, Micah Boyer, Mark Nichter
BACKGROUND: Mycobacterium ulcerans infection, commonly known as Buruli ulcer (BU), is a debilitating neglected tropical disease. Its management remains complex and has three main components: antibiotic treatment combining rifampicin and streptomycin for 56 days, wound dressings and skin grafts for large ulcerations, and physical therapy to prevent functional limitations after care. In Benin, BU patient care is being integrated into the government health system. In this paper, we report on an innovative pilot program designed to introduce BU decentralization in Ouinhi district, one of Benin's most endemic districts previously served by centralized hospital-based care...
March 12, 2018: PLoS Neglected Tropical Diseases
Anusree Mahanta, Piyali Ganguli, Pankaj Barah, Ram Rup Sarkar, Neelanjana Sarmah, Saurav Phukan, Mayuri Bora, Shashi Baruah
Diseases by protozoan pathogens pose a significant public health concern, particularly in tropical and subtropical countries, where these are responsible for significant morbidity and mortality. Protozoan pathogens tend to establish chronic infections underscoring their competence at subversion of host immune processes, an important component of disease pathogenesis and of their virulence. Modulation of cytokine and chemokine levels, their crosstalks and downstream signaling pathways, and thereby influencing recruitment and activation of immune cells is crucial to immune evasion and subversion...
2018: Frontiers in Immunology
Natalia Rodriguez-Valero, Helena Moza Moriñigo, Miguel J Martínez, Aida Peiró, Ines Oliveira, Marta Bodro, Joan Gómez-Junyent, Joaquim Gascon, Jose Muñoz
BACKGROUND: Leptospirosis is an important zoonosis worldwide, nevertheless is often poor recognized in non tropical settings. In Thailand is becoming an emerging disease and Chiang Mai could become a popular spot to acquire the disease amongst travelers. METHODS: We describe three cases of imported leptospirosis undifferentiated fever after travelling to Thailand during the summer of 2015 diagnosed at two Spanish hospitals. RESULTS: Our three patients probably acquired leptospirosis while swimming in freshwater around Chiang Mai, a Thailand's northern region with moderate incidence of leptopirosis...
March 8, 2018: Travel Medicine and Infectious Disease
Chelsea Handfield, Jeffery Kwock, Amanda S MacLeod
Barrier sites such as the skin play a critical role in immune defense. They must maintain homeostasis with commensals and rapidly detect and limit pathogen invasion. This is accomplished in part through the production of endogenous antimicrobial peptides and proteins, which can be either constitutive or inducible. Here, we focus particularly on the control of innate antiviral proteins and present the basic aspects of their regulation in the skin by interferons (IFNs), IFN-independent immunity, and environmental factors...
March 8, 2018: Trends in Immunology
Carlos Culquichicón, Emanuel Ramos-Cedano, Luis Helguero-Santin, Roberto Niño-Garcia, Alfonso J Rodriguez-Morales
Carrion's disease is a major re-emerging and occupational health disease. This bibliometric study aimed to evaluate scientific production on this disease both globally and in Latin America. SCI-E, MEDLINE/GoPubMed, SCOPUS, ScIELO, and LILACS databases were searched for Carrion's disease-related articles. They were classified according to publication year, type, city and institution of origin, international cooperation, scientific journal, impact factor, publication language, author(s), and H-index. There were 170 articles in SCI-E...
March 1, 2018: Le Infezioni in Medicina
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