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https://www.readbyqxmd.com/read/29345298/leishmania-amazonensis-isolated-from-human-visceral-leishmaniasis-histopathological-analysis-and-parasitological-burden-in-different-inbred-mice
#1
Celeste da Silva Freitas de Souza, Kátia da Silva Calabrese, Ana Lúcia Abreu-Silva, Luiz Otávio Pereira Carvalho, Flávia de Oliveira Cardoso, Maria Elizabeth Moraes Cavalheiros Dorval, Elisa Teruya Oshiro, Patrícia Flávia Quaresma, Célia Maria Ferreira Gontijo, Raquel da Silva Pacheco, Maria Isabel Doria Rossi, Sylvio Celso Gonçalves da Costa, Tânia Zaverucha do Valle
Leishmania amazonensis is a major etiological agent of human cutaneous leishmaniasis in the Americas; nevertheless there are some reports of this species causing visceral disease in dogs and men. In the present work we have studied a Leishmania strain isolated from a human case of visceral leishmaniasis. We have infected different mouse strains and analyzed the development of the disease, studying the parasite's ability to visceralize and whether this ability is influenced by host genetics. Female BALB/c, C57BL/6, C57BL/10, CBA, DBA/2, and C3H/He mice were subcutaneously infected with 104 L...
January 18, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29340467/prevalence-of-and-risk-factors-for-intestinal-parasite-infections-in-pediatric-patients-admitted-to-public-hospitals-in-southern-brazil
#2
Isis Almeida de Almeida, Sabrina Jeske, Marília Arndt Mesemburg, Maria Elisabeth Aires Berne, Marcos Marreiro Villela
INTRODUCTION: This study aimed to evaluate the prevalence of intestinal parasitosis and to identify risk factors associated therewith in hospitalized children. METHODS: Three fecal samples from each patient were evaluated using three different techniques. The patients' nutritional and socioeconomic status and hematologic profiles were evaluated. RESULTS: Of 106 children, 32.1% tested positive for intestinal parasitosis. The associated risk factors were low parental education levels and children's nail-biting habit...
November 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29331278/impact-of-treatment-with-a-protein-tyrosine-kinase-inhibitor-genistein-on-acute-and-chronic-experimental-schistosoma-mansoni-infection
#3
Maysa Mohamed Kamel Sobhy, Soheir Sayed Mahmoud, Shaimaa Helmy El-Sayed, Enas Mohamed Ali Rizk, Amira Raafat, Mohamed Sherif Ismail Negm
Schistosomiasis mansoni is considered one of the most common fibrotic diseases resulting from inflammation and deposition of fibrous tissue around parasitic eggs trapped in the liver, causing morbidity and mortality. Chemotherapy against schistosomiasis is largely dependent on Praziquantel (PZQ). Yet, the huge administration of it in endemic areas and its incompetence towards the immature stages have raised serious alarms against the development of drug resistance. Few drugs are directed to reverse schistosomal liver fibrosis, particularly at the chronic and advanced stages of the disease...
January 10, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29331268/the-population-biology-and-transmission-dynamics-of-loa-loa
#4
REVIEW
Charles Whittaker, Martin Walker, Sébastien D S Pion, Cédric B Chesnais, Michel Boussinesq, María-Gloria Basáñez
Endemic to Central Africa, loiasis - or African eye worm (caused by the filarial nematode Loa loa) - affects more than 10 million people. Despite causing ocular and systemic symptoms, it has typically been considered a benign condition, only of public health relevance because it impedes mass drug administration-based interventions against onchocerciasis and lymphatic filariasis in co-endemic areas. Recent research has challenged this conception, demonstrating excess mortality associated with high levels of infection, implying that loiasis warrants attention as an intrinsic public health problem...
January 10, 2018: Trends in Parasitology
https://www.readbyqxmd.com/read/29329621/first-parasitological-histopathological-and-molecular-characterization-of-echinococcus-vogeli-rausch-and-bernstein-1972-from-cuniculus-paca-linnaeus-1766-in-the-cerrado-biome-mato-grosso-do-sul-brazil
#5
Fernanda Bittencourt-Oliveira, Paulo Teixeira, Alba Alencar, Rodrigo Menezes, Christiane Corrêa, Leandro Neves, Fernanda Almeida, Daniel Daipert-Garcia, José Roberto Machado-Silva, Rosângela Rodrigues-Silva
Polycystic echinococcosis (PE) is caused by Echinococcus vogeli metacestodes (larval stage) in Neotropical countries. E. vogeli is trophically-transmitted between predators bush dogs (Speothos venaticus) and prey pacas (Cuniculus paca). In Brazil, reported PE cases are restricted to the Amazon biome. In this study, metacestodes from a paca hunted in Mato Grosso do Sul state (Cerrado biome) were identified morphological and histopathological techniques and further confirmed by molecular testing (sequencing of cytochrome C oxidase subunit I (cox1) gene) for the first time...
January 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29324858/mapping-the-geographical-distribution-of-podoconiosis-in-cameroon-using-parasitological-serological-and-clinical-evidence-to-exclude-other-causes-of-lymphedema
#6
Kebede Deribe, Amuam Andrew Beng, Jorge Cano, Abdel Jelil Njouendo, Jerome Fru-Cho, Abong Raphael Awah, Mathias Esum Eyong, Patrick W Chounna Ndongmo, Emanuele Giorgi, David M Pigott, Nick Golding, Rachel L Pullan, Abdisalan M Noor, Fikre Enquselassie, Christopher J L Murray, Simon J Brooker, Simon I Hay, Peter Enyong, Melanie J Newport, Samuel Wanji, Gail Davey
BACKGROUND: Podoconiosis is a non-filarial elephantiasis, which causes massive swelling of the lower legs. It was identified as a neglected tropical disease by WHO in 2011. Understanding of the geographical distribution of the disease is incomplete. As part of a global mapping of podoconiosis, this study was conducted in Cameroon to map the distribution of the disease. This mapping work will help to generate data on the geographical distribution of podoconiosis in Cameroon and contribute to the global atlas of podoconiosis...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29318992/cutaneous-leishmaniasis-in-pediatric-patients-in-a-single-tertiary-hospital-in-ankara
#7
Ayşe Kaman, Gönül Tanır, Zeynep Gökçe Gayretli Aydın, Özge Metin, Türkan Aydın Teke, Fatma Nur Öz, Mesut Mungan
OBJECTIVE: Leishmaniasis is an infectious disease that is caused by a protozoan parasite of the Leishmania genus and that occurs worldwide. Leishmaniasis is endemic in southeastern Turkey and the neighboring Middle Eastern countries. The purpose of this study was to describe the clinical characteristics of patients admitted to our hospital with a diagnosis of cutaneous leishmaniasis (CL). METHODS: A total of 16 CL patients [11 (69%) boys and five (31%) girls] were admitted between January 2014 and December 2015...
December 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29318987/determination-of-trichomonas-vaginalis-genotypes-using-pcr-restriction-fragment-length-polymorphism-rflp
#8
Serpil Demirağ, Erdoğan Malatyalı, Sema Ertuğ, Hatice Ertabaklar
OBJECTIVE: Trichomonas vaginalis is an anaerobic protozoon and the most common non-viral sexually transmitted pathogen. The present study was designed to determine the genotypes of T. vaginalis using polymerase chain reaction (PCR)-restriction fragment length polymorphism of actin gene. METHODS: A total of 20 isolates from symptomatic females isolated and cryopreserved at Adnan Menderes University, Research and Training Hospital Parasitology Laboratory were included...
December 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29317873/construction-and-identification-of-a-recombinant-plasmid-encoding-echinococcus-granulosus-oncosphere-antigen-eg95
#9
Nahideh Mazaheri, Abdolhossein Dalimi, Majid Pirestani, Farnoosh Jameie, Mehdi Mohebali, Mohamad Bagher Rokni
Background: Cystic echinococcosis (CE), as a zoonotic disease cause to health threat and economic losses. Despite implemented control programs, few countries have been able to decrease or eliminate this infection. Vaccination of the intermediate host offers an additional strategy to control the parasite transmission and EG95 antigen is considered more than the others in the vaccine issue. According to the high protection induced by the EG95 recombinant vaccine, this study was designed to construct recombinant plasmid formulation of EG95 antigen...
October 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/29317872/transmission-of-leishmania-infantum-by-rhipicephalus-sanguineus-acari-ixodidae-in-dogs
#10
Alaleh Rakhshanpour, Abdolali Malmasi, Mehdi Mohebali, Sedigheh Nabian, Hossein Mirhendi, Zabihollah Zarei, Abdolhossein Dalimi, Anita Mohammadiha, Behnaz Akhoundi, Amrollah Azarm
Background: Rhipicephalus sanguineus is the most widely distributed tick in the world, which is partly due to its biological flexibility and the global distribution of its major host, the domestic dog. In Mediterranean region it could be principal reservoir host for Leishmania infantum, usually transmitted by the phlebotomine sand flies. In this study, we evaluated the vector potential of R. sanguineus in transmitting L. infantum to uninfected dogs. Methods: During 2014, five dogs with clinical manifestations of canine visceral leishmaniasis (CVL), high anti-Leishmania antibody titers and tick infestation, were selected from CVL endemic areas (Tehran and Alborz provinces)...
October 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/29317853/real-time-observation-of-pathophysiological-processes-during-murine-experimental-schistosoma-japonicum-infection-using-high-resolution-ultrasound-imaging
#11
Katsumi Maezawa, Rieko Furushima-Shimogawara, Akio Yasukawa, Nobuo Ohta, Shiro Iwanaga
Background: Hepatosplenic lesion formation is one of the typical clinical symptoms of schistosomiasis japonica. Although it is established that circum-oval granuloma formation mediated by T lymphocytes is the key event triggering the formation of hepatic lesions, the time-course kinetics of disease progression remains to be fully elucidated. Methods: The real-time process of the pathophysiology of schistosomiasis japonica from the early to late clinical phase was non-invasively observed in a murine experimental infection model using high-resolution ultrasonography...
2018: Tropical Medicine and Health
https://www.readbyqxmd.com/read/29311086/artemether-lumefantrine-for-the-treatment-of-plasmodium-malariae-plasmodium-ovale-and-mixed-plasmodium-malaria-a-prospective-clinical-trial-assessing-species-specific-efficacy-in-gabon
#12
Mirjam Groger, Luzia Veletzky, Albert Lalremruata, Chiara Cattaneo, Johannes Mischlinger, Rella Zoleko-Manego, Lilian Endamne, Anna Klicpera, Johanna Kim, The Nguyen, Lena Flohr, Jonathan Remppis, Pierre-Blaise Matsiegui, Ayôla A Adegnika, Selidji T Agnandji, Peter G Kremsner, Benjamin Mordmüller, Ghyslain Mombo-Ngoma, Michael Ramharter
ObjectivesTreatment recommendations for Plasmodium malariae and Plasmodium ovale malaria are largely based on anecdotal evidence. The aim of this study was to systematically assess the efficacy and safety of artemether-lumefantrine for the treatment of patients with uncomplicated P.malariae or P.ovale mono-infections, or mixed Plasmodium infections.Patients and methodsThis prospective study was conducted in Gabon. Patients with microscopically confirmed P.malariae, P.ovale, or mixed species malaria with at least one of these two Plasmodium species were treated with an oral, fixed dose combination of artemether-lumefantrine for three consecutive days...
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29309784/parasitological-and-immunological-evaluation-of-cattle-experimentally-infected-with-trypanosoma-vivax
#13
Paula Boeira Bassi, Fernanda Fortes de Araújo, Guilherme Caetano Garcia, Marcos Vinícius da Silva, Carlo José Freire Oliveira, Eustáquio Resende Bittar, Matheus de Souza Gomes, Laurence Rodrigues do Amaral, Matheus Fernandes Costa E Silva, Gabriel Antônio Nogueira Nascentes, Virmondes Rodrigues Junior, Olindo Assis Martins-Filho, Márcio Sobreira Silva Araújo, Joely Ferreira Figueiredo Bittar
Trypanosoma vivax infection causes relevant economical impact due to high morbidity and mortality leading to negative impact on local livestock. Despite parasitological and serological methods are used for the diagnosis of T. vivax infection, gaps regarding sensitivity and specificity of these methods still represent a challenge. The present study aimed to compare the kinetics of parasitological and serological parameters in cattle experimentally infected with T. vivax along with immunophenotypic analysis of whole blood leukocytes...
January 5, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29309767/time-and-dose-dependenceevaluation-of-nitroheterocyclic-drugs-for-improving-efficacy-following-trypanosoma-cruzi-infection-a-pre-clinical-study
#14
Ana Lia Mazzeti, Lívia de F Diniz, Karolina R Gonçalves, Alvaro F S Nascimento, Pollyanna A F Spósito, Vanessa C F Mosqueira, George L L Machado-Coelho, Isabela Ribeiro, Maria T Bahia
Benznidazole and nifurtimox-treatments regimens currently used in human are supported by very limited experimental data. This study was designed to evaluate the time and dose dependence for efficacy of the most important nitroheterocyclic drugs in use for Chagas disease. In order to evaluate time dependence, Y strain-infected mice received benznidazole for a total of 1, 3, 7, 10, 20, and 40 days. Treatment courses of 3 to 10-day were effective in clearing parasitaemia and suppressing mortality, but parasitological cure was not achieved...
January 5, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29309253/advances-in-parasitology-volume-97advances-in-parasitology-volume-97-by-david-rollinson-and-j-russell-stothard-serial-editors-academic-press-london-uk-2017-336-pp-print-isbn-978-0-12-811558-9-ebook-isbn-978-0-12-811559-6-us-231-print-%C3%A2-140-or-us-231-ebook-%C3%A2
#15
https://www.readbyqxmd.com/read/29308379/cloning-of-k26-hydrophilic-antigen-from-iranian-strain-of-leishmania-infantum
#16
Bibi Razieh Hosseini Farash, Mehdi Mohebali, Bahram Kazemi, Homa Hajjaran, Behnaz Akhoundi, Reza Raoofian, Abdolmajid Fata, Majid Mojarrad, Mohammad Kazem Sharifi-Yazdi
Background: Visceral leishmaniasis (VL) caused by Leishmania infantum is the most severe form of leishmaniasis in Iran, which causes a high mortality rate in the case of inaccurate diagnosis and treatment. This study aimed to clone of K26 gene from Iranian strain of L. infantum and register the sequencing results in Genbank to facilitate the preparation a new K26 antigen for the detection of L. infantum infection. Methods: L. infantum was obtained from an infected domestic dog in Meshkin-Shahr area from northwestern Iran in 2015...
October 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/29302149/epidemiological-trends-of-cutaneous-leishmaniasis-in-al-madinah-al-munawarah-province-western-region-of-saudi-arabia
#17
Miskelyemen Abdelatti Elmekki, Mogahid M Elhassan, Hani A Ozbak, Ilham T Qattan, Satti M Saleh, Ali H Alharbi
Objective: To investigate the epidemiological trends of cutaneous leishmaniasis (CL) in Al-Madinah Al-Munawarah, western region of KSA. Materials and Methods: Four hundred and sixty-seven parasitologically confirmed CL cases attending Al-Meeqat Hospital, Al-Madinah, during 2012-2015, were included in this study. Results: Both Saudi and non-Saudi nationals were infected, with the highest infection rate being among Saudis (68.7%). Males were more affected than females as 86...
October 2017: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/29297824/detection-of-mycobacterium-avium-subspecies-paratuberculosis-in-rock-hyraxes-procavia-capensis-imported-from-south-africa
#18
Kim Fechner, Jenny Schäfer, Pia Münster, Kerstin Ternes, Susanne Döring, Inger Völkel, Franz-Josef Kaup, Claus-Peter Czerny
Mycobacterium avium subspecies paratuberculosis (MAP) causes chronic, progressive, and consecutively fatal enteritis, especially in ruminants. MAP distribution among wildlife is not yet clear. In this study, three wild-born rock hyraxes ( Procavia capensis) had been imported from South Africa to a German zoological garden. During the quarantine period, four young animals were born. The wild-born animals showed symptoms of mild diarrhea shortly after their arrival in the zoological garden, but all routine parasitological and bacteriologic tests performed were negative...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29290581/first-molecular-detection-of-babesia-canis-in-dogs-from-bosnia-and-herzegovina
#19
Agnesa Ćoralić, Simona Gabrielli, Amir Zahirović, Nikola M Stojanović, Giovanni Luigi Milardi, Adnan Jažić, Almedina Zuko, Denis Čamo, Suzana Otašević
Babesia spp. are tick-transmitted protozoan haemoparasites of great economic, veterinary and medical impact worldwide. Herein we reported the very high prevalence of autochthonous babesiosis in symptomatic dogs from Bosnia and Herzegovina in the period from 2014 to 2016. Eighty dogs that did not leave the country were examined using parasitological and molecular analyses and babesiosis was diagnosed in 82.5% and 85.0% of them, respectively (p < 0.001). One species, Babesia canis was identified using molecular methodology (PCR and sequence analysis)...
December 24, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29281988/intravenous-artesunate-plus-artemisnin-based-combination-therapy-act-or-intravenous-quinine-plus-act-for-treatment-of-severe-malaria-in-ugandan-children-a-randomized-controlled-clinical-trial
#20
Pauline Byakika-Kibwika, Jane Achan, Mohammed Lamorde, Carine Karera-Gonahasa, Agnes N Kiragga, Harriet Mayanja-Kizza, Noah Kiwanuka, Sam Nsobya, Ambrose O Talisuna, Concepta Merry
BACKGROUND: Severe malaria is a medical emergency associated with high mortality. Adequate treatment requires initial parenteral therapy for fast parasite clearance followed by longer acting oral antimalarial drugs for cure and prevention of recrudescence. METHODS: In a randomized controlled clinical trial, we evaluated the 42-day parasitological outcomes of severe malaria treatment with intravenous artesunate (AS) or intravenous quinine (QNN) followed by oral artemisinin based combination therapy (ACT) in children living in a high malaria transmission setting in Eastern Uganda...
December 28, 2017: BMC Infectious Diseases
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