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https://www.readbyqxmd.com/read/28088326/acute-kidney-injury-due-to-tropical-infectious-diseases-and-animal-venoms-a-tale-of-2-continents
#1
REVIEW
Emmanuel A Burdmann, Vivekanand Jha
South and Southeast Asia and Latin American together comprise 46 countries and are home to approximately 40% of the world population. The sociopolitical and economic heterogeneity, tropical climate, and malady transitions characteristic of the region strongly influence disease behavior and health care delivery. Acute kidney injury epidemiology mirrors these inequalities. In addition to hospital-acquired acute kidney injury in tertiary care centers, these countries face a large preventable burden of community-acquired acute kidney injury secondary to tropical infectious diseases or animal venoms, affecting previously healthy young individuals...
January 11, 2017: Kidney International
https://www.readbyqxmd.com/read/28060841/genomes-of-fasciola-hepatica-from-the-americas-reveal-colonization-with-neorickettsia-endobacteria-related-to-the-agents-of-potomac-horse-and-human-sennetsu-fevers
#2
Samantha N McNulty, Jose F Tort, Gabriel Rinaldi, Kerstin Fischer, Bruce A Rosa, Pablo Smircich, Santiago Fontenla, Young-Jun Choi, Rahul Tyagi, Kymberlie Hallsworth-Pepin, Victoria H Mann, Lakshmi Kammili, Patricia S Latham, Nicolas Dell'Oca, Fernanda Dominguez, Carlos Carmona, Peter U Fischer, Paul J Brindley, Makedonka Mitreva
Food borne trematodes (FBTs) are an assemblage of platyhelminth parasites transmitted through the food chain, four of which are recognized as neglected tropical diseases (NTDs). Fascioliasis stands out among the other NTDs due to its broad and significant impact on both human and animal health, as Fasciola sp., are also considered major pathogens of domestic ruminants. Here we present a reference genome sequence of the common liver fluke, Fasciola hepatica isolated from sheep, complementing previously reported isolate from cattle...
January 6, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28044043/adaptive-diversification-between-yellow-fever-virus-west-african-and-south-american-lineages-a-genome-wide-study
#3
Yan Li, Zexiao Yang
Yellow fever virus (YFV) has emerged as the causative agent of a vector-borne disease with devastating mortality in the tropics of Africa and the Americas. YFV phylogenies indicate that the isolates collected from West Africa, East and Central Africa, and South America cluster into different lineages and the virus spread into the Americas from Africa. To determine the nature of genetic variation accompanying the intercontinental epidemic, we performed a genome-wide evolutionary study on the West African and South American lineages of YFV...
January 2, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28031845/dengue-shock-syndrome
#4
Sreenivasa Rao Sudulagunta, Mahesh Babu Sodalagunta, Mona Sepehrar, Shiva Kumar Bangalore Raja, Aravinda Settikere Nataraju, Mounica Kumbhat, Deepak Sathyanarayana, Siddharth Gummadi, Hemanth Kumar Burra
Dengue fever is a mosquito-borne arthropod-borne viral (arboviral) tropical disease in humans affecting 50-528 million people worldwide. The acute abdominal complications of dengue fever are acute appendicitis, acute pancreatitis, acute acalculous cholecystitis and non-specific peritonitis. Acute pancreatitis with new onset diabetes in dengue shock syndrome (DSS) is very rarely reported. We describe a case of 30-year-old man admitted in intensive care unit and was diagnosed with DSS with RT-PCR, NS1 antigen and dengue IgM antibody being positive...
November 2016: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/27992422/role-of-t3ss-1-sipd-protein-in-protecting-mice-against-non-typhoidal-salmonella-typhimurium
#5
Bakhos Jneid, Karine Moreau, Marc Plaisance, Audrey Rouaix, Julie Dano, Stéphanie Simon
BACKGROUND: Salmonella enterica species are enteric pathogens that cause severe diseases ranging from self-limiting gastroenteritis to enteric fever and sepsis in humans. These infectious diseases are still the major cause of morbidity and mortality in low-income countries, especially in children younger than 5 years and immunocompromised adults. Vaccines targeting typhoidal diseases are already marketed, but none protect against non-typhoidal Salmonella. The existence of multiple non-typhoidal Salmonella serotypes as well as emerging antibiotic resistance highlight the need for development of a broad-spectrum protective vaccine...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27988402/traditional-uses-phytochemistry-and-pharmacology-of-wild-banana-musa-acuminata-colla-a-review
#6
REVIEW
Nimisha Sarah Mathew, Pradeep Singh Negi
ETHNOPHARMACOLOGICAL RELEVANCE: Musa acuminata, the wild species of banana is a plant of the tropical and subtropical regions. Over the past few decades, the health benefits of M. acuminata have received much attention. All parts of the plant including fruits, peel, pseudostem, corm, flowers, leaves, sap and roots have found their use in the treatment of many diseases in traditional medicine. Literature review have indicated use of M. acuminata in the treatment of various diseases such as fever, cough, bronchitis, dysentery, allergic infections, sexually transmitted infections, and some of the non-communicable diseases...
January 20, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27982119/declining-prevalence-of-disease-vectors-under-climate-change
#7
Luis E Escobar, Daniel Romero-Alvarez, Renato Leon, Manuel A Lepe-Lopez, Meggan E Craft, Mercy J Borbor-Cordova, Jens-Christian Svenning
More than half of the world population is at risk of vector-borne diseases including dengue fever, chikungunya, zika, yellow fever, leishmaniasis, chagas disease, and malaria, with highest incidences in tropical regions. In Ecuador, vector-borne diseases are present from coastal and Amazonian regions to the Andes Mountains; however, a detailed characterization of the distribution of their vectors has never been carried out. We estimate the distribution of 14 vectors of the above vector-borne diseases under present-day and future climates...
December 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27973528/modelling-vaccination-strategies-against-rift-valley-fever-in-livestock-in-kenya
#8
John M Gachohi, M Kariuki Njenga, Philip Kitala, Bernard Bett
BACKGROUND: The impacts of vaccination on the transmission of Rift Valley fever virus (RVFV) have not been evaluated. We have developed a RVFV transmission model comprising two hosts-cattle as a separate host and sheep and goats as one combined host (herein after referred to as sheep)-and two vectors-Aedes species (spp) and Culex spp-and used it to predict the impacts of: (1) reactive vaccination implemented at various levels of coverage at pre-determined time points, (2) targeted vaccination involving either of the two host species, and (3) a periodic vaccination implemented biannually or annually before an outbreak...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27935474/a-pathology-of-progress-locating-the-historiography-of-cancer
#9
Agnes Arnold-Forster
Despite its prominent position in today's medical research, popular culture and everyday life, cancer's history is relatively unwritten. Compared to the other great 'plagues' - cholera, tuberculosis or tropical fevers, to name but a scant handful - cancer has few dedicated pages in the general surveys, and its specialists have largely failed to convince the broader community of medical historians - or indeed historians of anything at all - that histories of the disease can tell us fundamental things about the science and practice of medicine, both past and present...
December 2016: British Journal for the History of Science
https://www.readbyqxmd.com/read/27931200/amoebic-liver-abscess-an-unusual-cause-for-a-right-iliac-fossa-mass-a-case-report
#10
Vithiya Ratnasamy, Kumanan Thirunavukarasu, Kannathasan Selvam, Murugananthan Arumugam
BACKGROUND: Amoebic liver abscess is the most common extra intestinal manifestation of amoebiasis in tropical countries. It usually presents with right hypochondrial pain, fever and anorexia. Amoebic liver abscess has gained clinical significance due to the wide variety of clinical presentations which can cause diagnostic dilemmas and high mortality in untreated cases. CASE PRESENTATION: We report a case of a 63-year-old male with a history of anorexia for 3 weeks, fever for 4 days and examination findings of tender hepatomegaly with a liver span of 15 cm in the mid clavicular line and a firm irregular mass in the right iliac fossa...
December 8, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27928980/inside-doctor-livingstone-a-scottish-icon-s-encounter-with-tropical-disease
#11
Michael P Barrett, Federica Giordani
Dr David Livingstone died on May 1st 1873. He was 60 years old and had spent much of the previous 30 years walking across large stretches of Southern Africa, exploring the terrain he hoped could provide new environments in which Europeans and Africans could cohabit on equal terms and bring prosperity to a part of the world he saw ravaged by the slave trade. Just days before he died, he wrote in his journal about the permanent stream of blood that he was emitting related to haemorrhoids and the acute intestinal pain that had left him incapable of walking...
December 8, 2016: Parasitology
https://www.readbyqxmd.com/read/27928082/incidence-and-clinical-outcome-of-acute-liver-failure-caused-by-dengue-in-a-hospital-for-tropical-diseases-thailand
#12
Khin Kye Mon, Apichart Nontprasert, Chatporn Kittitrakul, Pisit Tangkijvanich, Wattana Leowattana, Kittiyod Poovorawan
Acute liver failure is an atypical manifestation of dengue with a high mortality. We performed a retrospective cohort study at the Hospital for Tropical Diseases, Bangkok, Thailand. In total, 1,926 patients with serologically confirmed dengue were enrolled in the study from 2011 to 2015. Of these, six patients presented with acute liver failure, four died, and two survived. The incidence of dengue-associated acute liver failure was 0.31%. Dengue-associated acute liver failure was most common among young adults (median age, 29 years)...
December 7, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27917305/laboratory-diagnosis-for-outbreak-prone-infectious-diseases-after-typhoon-yolanda-haiyan-philippines
#13
Mariko Saito-Obata, Mayuko Saito, Titus C Tan, Inez Andrea P Medado, Clyde Dapat, Michiko Okamoto, Raita Tamaki, Rowena C Capistrano, Edelwisa Segubre-Mercado, Socorro P Lupisan, Hitoshi Oshitani
Typhoon Yolanda (Haiyan) hit the central part of the Philippines on November 8, 2013. To identify possible outbreaks of communicable diseases after the typhoon, nasopharyngeal swabs, stool and blood samples were collected from patients who visited the Eastern Visayas Regional Medical Center due to acute respiratory infection (ARI), acute gastroenteritis (AGE) or other febrile illness (OFI) including suspected dengue fever, between November 28, 2013 and February 5, 2014.   Methods: Samples were tested on-site for selected pathogens using rapid diagnostic tests...
October 21, 2016: PLoS Currents
https://www.readbyqxmd.com/read/27907248/mycobacterium-ulcerans-toxin-mycolactone-may-enhance-host-seeking-and-oviposition-behavior-by-aedes-aegypti-l-diptera-culicidae
#14
M L Sanders, H R Jordan, C Serewis-Pond, L Zheng, M E Benbow, P L Small, J K Tomberlin
The ecological functions of many toxins continue to remain unknown for those produced by environmental pathogens. Mycobacterium ulcerans, the causative agent of the neglected tropical disease, Buruli ulcer, produces a cytotoxic macrolide, mycolactone, whose function(s) in the environment remains elusive. Through a series of dual-choice behavior assays, we show that mycolactone may be an interkingdom cue for the yellow fever mosquito, Aedes aegypti, seeking blood-meals as well as oviposition sites. Results provide novel insight into the evolution between bacteria and potential vectors...
December 1, 2016: Environmental Microbiology
https://www.readbyqxmd.com/read/27905890/low-and-declining-attack-rates-of-imported-typhoid-fever-in-the-netherlands-1997-2014-in-spite-of-a-restricted-vaccination-policy
#15
F S T Suryapranata, M Prins, G J B Sonder
BACKGROUND: Typhoid fever mainly occurs in (sub) tropical regions where sanitary conditions remain poor. In other regions it occurs mainly among returning travelers or their direct contacts. The aim of this study was to evaluate the current Dutch guidelines for typhoid vaccination. METHOD: Crude annual attack rates (AR) per 100,000 Dutch travelers were calculated during the period 1997 to 2014 by dividing the number of typhoid fever cases by the estimated total number of travelers to a specific country or region...
December 1, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27893080/travel-associated-zika-virus-disease-acquired-in-the-americas-through-february-2016-a-geosentinel-analysis
#16
Davidson H Hamer, Kira A Barbre, Lin H Chen, Martin P Grobusch, Patricia Schlagenhauf, Abraham Goorhuis, Perry J J van Genderen, Israel Molina, Hilmir Asgeirsson, Phyllis E Kozarsky, Eric Caumes, Stefan H Hagmann, Frank P Mockenhaupt, Gilles Eperon, Elizabeth D Barnett, Emmanuel Bottieau, Andrea K Boggild, Philippe Gautret, Noreen A Hynes, Susan Kuhn, R Ryan Lash, Karin Leder, Michael Libman, Denis J M Malvy, Cecilia Perret, Camilla Rothe, Eli Schwartz, Annelies Wilder-Smith, Martin S Cetron, Douglas H Esposito
Background: Zika virus has spread rapidly in the Americas and has been imported into many nonendemic countries by travelers. Objective: To describe clinical manifestations and epidemiology of Zika virus disease in travelers exposed in the Americas. Design: Descriptive, using GeoSentinel records. Setting: 63 travel and tropical medicine clinics in 30 countries. Patients: Ill returned travelers with a confirmed, probable, or clinically suspected diagnosis of Zika virus disease seen between January 2013 and 29 February 2016...
January 17, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27890811/enteric-fever-in-barcelona-changing-patterns-of-importation-and-antibiotic-resistance
#17
Ana Requena-Méndez, Monica Berrocal, Manuel Almela, Alex Soriano, Joaquim Gascón, José Muñoz
BACKGROUND: Enteric fever's incidence is decreasing among residents of high-income countries, although it's rising in travelers coming from low-resource endemic settings. The study's aim is to describe epidemiological, clinical and laboratory features of patients with enteric fever. METHODS: Retrospective descriptive study of enteric fever cases diagnosed at a Tropical Medicine Unit in Barcelona, 1993-2012. RESULTS: Out of 40 patients, 31(77,5%) were returning travelers, and 70% of them had been in Southern Asia...
November 2016: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/27889244/medicinal-uses-chemistry-and-pharmacology-of-dillenia-species-dilleniaceae
#18
REVIEW
Carla W Sabandar, Juriyati Jalil, Norizan Ahmat, Nor-Ashila Aladdin
The genus Dillenia is comprised of about 100 species of evergreen and deciduous trees or shrubs of disjunct distribution in the seasonal tropics of Madagascar through South and South East Asia, Malaysia, North Australia, and Fiji. Species from this genus have been widely used in medicinal folklore to treat cancers, wounds, jaundice, fever, cough, diabetes mellitus, and diarrhea as well as hair tonics. The plants of the genus also produce edible fruits and are cultivated as ornamental plants. Flavonoids, triterpenoids, and miscellaneous compounds have been identified in the genus...
February 2017: Phytochemistry
https://www.readbyqxmd.com/read/27876005/a-predictive-model-to-differentiate-dengue-from-other-febrile-illness
#19
Eduardo Fernández, Marek Smieja, Stephen D Walter, Mark Loeb
BACKGROUND: Dengue is a major public health problem in tropical and subtropical countries and has a presentation similar to other febrile illnesses. Since laboratory confirmation is frequently delayed, the majority of dengue cases are diagnosed based on symptoms. The objective of this study was to identify clinical, hematological and demographical parameters that could be used as predictors of dengue fever among patients with febrile illness. METHODS: We conducted a retrospective cohort study of 548 patients presenting with febrile syndrome to the largest public hospitals in Honduras...
November 22, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27843231/anterior-ischemic-optic-neuropathy-following-dengue-fever
#20
Reshma Ramakrishnan, Saurabh Shrivastava, Shrikant Deshpande, Priyanka Patkar
Dengue fever is caused by a flavivirus. This infection is endemic in the tropics and warm temperate regions of the world. Ocular manifestations of dengue fever include subconjunctival, vitreous, and retinal haemorrhages; posterior uveitis; optic neuritis; and maculopathies, haemorrhage, and oedema. However anterior ischemic optic neuropathy is a rare presentation. Optic nerve ischemia most frequently occurs at the optic nerve head, where structural crowding of nerve fibers and reduction of the vascular supply may combine to impair perfusion to a critical degree and produce optic disc oedema...
September 2016: Oman Journal of Ophthalmology
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