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https://www.readbyqxmd.com/read/29456191/comparative-efficacy-of-low-dose-versus-standard-dose-azithromycin-for-patients-with-yaws-a-randomised-non-inferiority-trial-in-ghana-and-papua-new-guinea
#1
Michael Marks, Oriol Mitjà, Christian Bottomley, Cynthia Kwakye, Wendy Houinei, Mathias Bauri, Paul Adwere, Abdul A Abdulai, Fredrick Dua, Laud Boateng, James Wangi, Sally-Ann Ohene, Regina Wangnapi, Shirley V Simpson, Helen Miag, Kennedy K Addo, Laud A Basing, Damien Danavall, Kai H Chi, Allan Pillay, Ronald Ballard, Anthony W Solomon, Cheng Y Chen, Sibauk V Bieb, Yaw Adu-Sarkodie, David C W Mabey, Kingsley Asiedu
BACKGROUND: A dose of 30 mg/kg of azithromycin is recommended for treatment of yaws, a disease targeted for global eradication. Treatment with 20 mg/kg of azithromycin is recommended for the elimination of trachoma as a public health problem. In some settings, these diseases are co-endemic. We aimed to determine the efficacy of 20 mg/kg of azithromycin compared with 30 mg/kg azithromycin for the treatment of active and latent yaws. METHODS: We did a non-inferiority, open-label, randomised controlled trial in children aged 6-15 years who were recruited from schools in Ghana and schools and the community in Papua New Guinea...
February 15, 2018: Lancet Global Health
https://www.readbyqxmd.com/read/29451599/first-case-report-of-atypical-disseminated-cutaneous-leishmaniasis-in-an-opium-abuser-in-iran
#2
Seyed Ahmad Hashemi, Alireza Badirzadeh, Sadaf Sabzevari, Ali Nouri, Mohammad Seyyedin
Leishmaniasis is a worldwide tropical infectious disease caused by different species of intracellular protozoa parasites of the genus Leishmania . Herein, we report a 78-year-old man with unusual diffuse cutaneous leishmaniasis (DCL) who had a history of opium abuse and chronic obstructive pulmonary disease (COPD). He had multiple papular, crusted and severely ulcerated lesions extended to his arm and chest. Direct smears and skin punch biopsy of the lesions were suggestive of leishmaniasis. Parasite DNA was amplified from ulcers, and identified as Leishmania major by PCR-RFLP, confirmed by sequencing analyses...
2018: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/29446074/a-hitchhiker-s-guide-to-humanized-mice-new-pathways-to-studying-viral-infections
#3
REVIEW
J K Skelton, A M Ortega-Prieto, M Dorner
Humanized mice are increasingly appreciated as an incredibly powerful platform for infectious disease research. The often very narrow species tropism of many viral infections, coupled with the sometimes-misleading results from preclinical studies in animal models (e.g. fatal immune reactions in the PEARL study 1 ) further emphasize the need for more predictive model systems based on human cells rather than surrogates. Humanized mice represent such a model and have been greatly enhanced in regards to their immune system reconstitution as well as immune functionality in the past years, resulting in their recommendation as pre-clinical model by the US Food and Drug Administration...
February 15, 2018: Immunology
https://www.readbyqxmd.com/read/29441245/case-of-enteric-fever-with-bicytopenia
#4
Madeeha Subhan, Waleed Sadiq
Infectious diseases are one of the major causes of morbidity and mortality in developing countries. Typhoid has its own contribution to the disease burden, especially in Pakistan and other tropical countries. Herein, we present a case of enteric fever with a rare presentation. Our patient is a 20-year-old man who gradually developed high-grade fever lasting seven days associated with rigors and chills. No additional accompanying systemic signs helped to localize the infection. After extensive laboratory testing, his typhoid serology was positive along with leukocytopenia and thrombocytopenia...
December 6, 2017: Curēus
https://www.readbyqxmd.com/read/29438386/doxycycline-inhibits-experimental-cerebral-malaria-by-reducing-inflammatory-immune-reactions-and-tissue-degrading-mediators
#5
Kim E Schmidt, Janina M Kuepper, Beatrix Schumak, Judith Alferink, Andrea Hofmann, Shanshan W Howland, Laurent Rénia, Andreas Limmer, Sabine Specht, Achim Hoerauf
Malaria ranks among the most important infectious diseases worldwide and affects mostly people living in tropical countries. Mechanisms involved in disease progression are still not fully understood and specific treatments that might interfere with cerebral malaria (CM) are limited. Here we show that administration of doxycycline (DOX) prevented experimental CM (ECM) in Plasmodium berghei ANKA (PbA)-infected C57BL/6 wildtype (WT) mice in an IL-10-independent manner. DOX-treated mice showed an intact blood-brain barrier (BBB) and attenuated brain inflammation...
2018: PloS One
https://www.readbyqxmd.com/read/29436309/are-perceived-prevalences-of-infection-also-biased-and-how-lessons-from-large-epidemics-of-mosquito-borne-diseases-in-tropical-regions
#6
Jocelyn Raude, Patrick Peretti-Watel, Jeremy Ward, Claude Flamand, Pierre Verger
BACKGROUND: Although people are likely to underestimate the frequencies of risks to health from common diseases and overestimate those from rare diseases, we still do not know much about reasons for this systematic bias, which is also referred to as "primary bias" in the literature. In this study, we take advantage of a series of large epidemics of mosquito-borne diseases to examine the accuracy of judgments of risk frequencies. In this aim, we assessed the perceived v. observed prevalence of infection by Zika, chikungunya or dengue fever during these outbreaks, as well as their variations among different subpopulations and epidemiological settings...
February 1, 2018: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/29425238/host-parasite-co-metabolic-activation-of-antitrypanosomal-aminomethyl-benzoxaboroles
#7
Ning Zhang, Martin Zoltner, Ka-Fai Leung, Paul Scullion, Sebastian Hutchinson, Ricardo C Del Pino, Isabel M Vincent, Yong-Kang Zhang, Yvonne R Freund, Michael R K Alley, Robert T Jacobs, Kevin D Read, Michael P Barrett, David Horn, Mark C Field
Recent development of benzoxaborole-based chemistry gave rise to a collection of compounds with great potential in targeting diverse infectious diseases, including human African Trypanosomiasis (HAT), a devastating neglected tropical disease. However, further medicinal development is largely restricted by a lack of insight into mechanism of action (MoA) in pathogenic kinetoplastids. We adopted a multidisciplinary approach, combining a high-throughput forward genetic screen with functional group focused chemical biological, structural biology and biochemical analyses, to tackle the complex MoAs of benzoxaboroles in Trypanosoma brucei...
February 9, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29419804/alpha-difluoromethylornithine-an-irreversible-inhibitor-of-polyamine-biosynthesis-as-a-therapeutic-strategy-against-hyperproliferative-and-infectious-diseases
#8
REVIEW
Nicole LoGiudice, Linh Le, Irene Abuan, Yvette Leizorek, Sigrid C Roberts
The fluorinated ornithine analog α-difluoromethylornithine (DFMO, eflornithine, ornidyl) is an irreversible suicide inhibitor of ornithine decarboxylase (ODC), the first and rate-limiting enzyme of polyamine biosynthesis. The ubiquitous and essential polyamines have many functions, but are primarily important for rapidly proliferating cells. Thus, ODC is potentially a drug target for any disease state where rapid growth is a key process leading to pathology. The compound was originally discovered as an anticancer drug, but its effectiveness was disappointing...
February 8, 2018: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29407239/seroprevalence-and-risk-factor-analysis-of-human-leptospirosis-in-distinct-climatic-regions-of-pakistan
#9
Muhammad Luqman Sohail, Muhammad Sarwar Khan, Muhammad Ijaz, Omer Naseer, Zahida Fatima, Abdullah Saghir Ahmad, Waqas Ahmad
Leptospirosis is a worldwide emerging infectious disease of zoonotic importance and large epidemics and epizootics have been reported all over the globe. A cross survey study was conducted to estimate seroprevalence of human leptospirosis in climatically distinct regions of Pakistan and to identify the risk factors associated with the disease. Blood samples from 360 humans were collected through convenient sampling, 120 from each of three study areas. Serological testing was performed using ELISA kit as per manufacturer's recommendations...
January 30, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29381720/the-impact-of-typhoon-haiyan-on-admissions-in-two-hospitals-in-eastern-visayas-philippines
#10
Joris Adriaan Frank van Loenhout, Julita Gil Cuesta, Jason Echavez Abello, Juan Mari Isiderio, Maria Lourdes de Lara-Banquesio, Debarati Guha-Sapir
OBJECTIVES: We investigated the short-term impact of Typhoon Haiyan, one of the strongest typhoons ever to make landfall, on the pattern of admissions in two hospitals in Eastern Visayas, the Philippines. METHODS: This study took place at Eastern Visayas Regional Medical Center (EVRMC) in Tacloban, and Ormoc District Hospital (ODH) in Ormoc. We determined whether there were differences in the pattern of admissions between the week before and the three weeks after Haiyan by using information on sex, age, diagnosis, ward and outcome at discharge from patient records...
2018: PloS One
https://www.readbyqxmd.com/read/29381647/recommendations-for-management-of-endemic-diseases-and-travel-medicine-in-solid-organ-transplant-recipients-and-donors-latin-america
#11
Wanessa Trindade Clemente, Lígia Camera Pierrotti, Edson Abdala, Michele I Morris, Luiz S Azevedo, Rogelio López-Vélez, Manuel Cuenca-Estrella, Julian Torre-Cisneros, Eskild Petersen, Luis Fernando A Camargo, Alissa Jade Wright, Nicholas J Beeching, Eduardo Garcia Vilela, Guilherme Santoro-Lopes, Oscar Len, Raquel S B Stucchi, Oriol Manuel, Luciana Costa Faria, Hakan Leblebicioglu, Shirish Huprikar, Israel Molina, Paulo Henrique Orlandi Mourão, Camille N Kotton, José María Aguado
The Recommendations for Management of Endemic Diseases and Travel Medicine in Solid-Organ Transplant Recipients and Donors: Latin America clinical practice guideline is intended to guide clinicians caring for solid-organ transplant (SOT) donors, candidates and recipients regarding infectious diseases (ID) issues related to this geographical region, mostly located in the tropics. These recommendations are based on both systematic reviews of relevant literature and expert opinion from both transplant ID and travel medicine specialists...
February 2018: Transplantation
https://www.readbyqxmd.com/read/29358040/collaborate-or-collapse-capacity-building-in-zoonotic-and-neglected-tropical-disease-modelling
#12
Siti Nursheena Mohd Zain, Maria-Gloria Basáñez
We share the insights from a successful collaboration in organizing and implementing an international scientific capacity-building workshop in Malaysia titled Mathematical Modelling of Neglected Infectious Diseases: Capacity Building in Southeast Asia. This workshop focused on the delivery of technical know-how and on essential soft skills related to effective grant proposal writing and networking.
January 18, 2018: Trends in Parasitology
https://www.readbyqxmd.com/read/29349716/detection-of-bovine-carriers-of-leptospira-by-serological-bacteriological-and-molecular-tools
#13
Melissa H Pinna, Gabriel Martins, Ana Paula Loureiro, Walter Lilenbaum
Bovine leptospirosis is an important infectious disease that causes reproductive problems and economic risks, particularly in the tropics. The present study aimed to determine the extent of Leptospira infection among bovines on a slaughterhouse from Rio de Janeiro, Brazil via serological, bacteriological, and molecular tests. Two hundred eight bovines were examined in total, and we obtained 208 blood samples for serology, 198 urine samples collected via direct bladder puncture for polymerase chain reaction (PCR) and culture, 208 kidney samples (one from each animal) for PCR and culture, and 92 vaginal fluid samples from sterile swabs for PCR and culture...
January 18, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29339220/a-new-chimeric-triple-reporter-fusion-protein-as-a-tool-for-in-vitro-and-in-vivo-multimodal-imaging-to-monitor-the-development-of-african-trypanosomes-and-leishmania-parasites
#14
Estefania Calvo Alvarez, Christelle Cren-Travaillé, Aline Crouzols, Brice Rotureau
Trypanosomiases and leishmaniases, caused by a group of related protist parasites, are Neglected Tropical Diseases currently threatening >500 million people worldwide. Reporter proteins have revolutionised the research on infectious diseases and have opened up new advances in the understanding of trypanosomatid-borne diseases in terms of both biology, pathogenesis and drug development. Here, we describe the generation and some applications of a new chimeric triple reporter fusion protein combining the red-shifted firefly luciferase PpyREH9 and the tdTomato red fluorescent protein, fused by the TY1 tag...
January 12, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29332210/pathogen-specific-leptospiral-proteins-in-urine-of-patients-with-febrile-illness-aids-in-differential-diagnosis-of-leptospirosis-from-dengue
#15
R Chaurasia, K C Thresiamma, C K Eapen, B J Zachariah, R Paul, M Sritharan
Leptospirosis and dengue are two commonly seen infectious diseases of the tropics. Differential diagnosis of leptospirosis from dengue fever is often difficult due to overlapping clinical symptoms and lack of economically viable and easy-to-perform laboratory tests. The gold standard for diagnosis is the microscopic agglutination test (MAT). In this study, the diagnostic potential of screening for pathogen-specific leptospiral antigens in urine samples is presented as a non-invasive method of disease diagnosis...
January 13, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29324800/hepcidin-deficiency-and-iron-deficiency-do-not-alter-tuberculosis-susceptibility-in-a-murine-m-tb-infection-model
#16
Rachel Harrington-Kandt, Elena Stylianou, Lucy A Eddowes, Pei Jin Lim, Lisa Stockdale, Nawamin Pinpathomrat, Naomi Bull, Janet Pasricha, Marta Ulaszewska, Yulia Beglov, Sophie Vaulont, Hal Drakesmith, Helen McShane
Tuberculosis (TB), caused by the macrophage-tropic pathogen Mycobacterium tuberculosis (M.tb) is a highly prevalent infectious disease. Since an immune correlate of protection or effective vaccine have yet to be found, continued research into host-pathogen interactions is important. Previous literature reports links between host iron status and disease outcome for many infections, including TB. For some extracellular bacteria, the iron regulatory hormone hepcidin is essential for protection against infection...
2018: PloS One
https://www.readbyqxmd.com/read/29317100/-practices-in-infectious-pathology-in-france-in-2015-results-of-the-national-survey
#17
Arnault Tauziède-Espariat, Fabrice Chrétien, Grégory Jouvion, Homa Alde-Biassette, Paul Hofman
Pathologists have been, are and will be always implicated in the diagnosis of infectious and tropical diseases. The resurgence of opportunistic infections due to the development of immunosuppressive drugs, the increase of migratory involvements draining tropical infections and the last epidemics spotlight the importance of pathologists in the field of infectious diseases. However, cancer is nowadays the first preoccupation of pathologists, which is constantly subject to evaluate diagnostic and prognostic markers and factors predictive to targeted therapy response or immunotherapy...
January 6, 2018: Annales de Pathologie
https://www.readbyqxmd.com/read/29297911/non-natural-amino-acid-peptide-microarrays-to-discover-ebola-virus-glycoprotein-ligands
#18
Joshua A Rabinowitz, John C Lainson, Stephen Albert Johnston, Chris W Diehnelt
We demonstrate a platform to screen a virus pseudotyped with Ebola virus glycoprotein (GP) against a library of peptides that contain non-natural amino acids to develop GP affinity ligands. This system could be used for rapid development of peptide-based antivirals for other emerging or neglected tropical infectious diseases.
January 3, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29279320/uk-role-4-military-infectious-diseases-and-tropical-medicine-cases-in-2005-2013
#19
Daniel S Burns, M R Riley, A Mason, M S Bailey
INTRODUCTION: Infectious diseases are a frequent cause of morbidity among British troops. The aim of this paper is to describe the spectrum of infectious diseases seen when UK service personnel are evacuated for definitive care to the Role 4 Medical Treatment Facility based at Birmingham Heartlands Hospital. METHOD: A retrospective analysis of all military patients presenting with infectious diseases and treated at Birmingham Heartlands Hospital between 14 April 2005 and 31 December 2013 was undertaken...
December 25, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29238918/treatment-of-acute-hepatitis-c-recommendations-from-an-expert-panel-of-the-italian-society-of-infectious-and-tropical-diseases
#20
REVIEW
Giovanni B Gaeta, Massimo Puoti, Nicola Coppola, Teresa Santantonio, Raffaele Bruno, Antonio Chirianni, Massimo Galli
AIM: This paper is aimed at providing practical recommendations for the management of acute hepatitis C (AHC). METHODS: This is an expert position paper based on the literature revision. Final recommendations were graded by level of evidence and strength of the recommendations. RESULTS: Treatment of AHC with direct-acting antivirals (DAA) is safe and effective; it overcomes the limitations of INF-based treatments. CONCLUSIONS: Early treatment with DAA should be offered when available...
December 13, 2017: Infection
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