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https://www.readbyqxmd.com/read/28928253/filarial-pleural-effusion-without-peripheral-blood-or-pleural-fluid-eosinophilia
#1
Amitabh Das Shukla, Abhinav Chaudhary, Arvind Kumar Verma, Shreenivasa Anantha
Lymphatic filariasis is a tropical parasitic disease and is endemic in India. It is present in various forms but its manifestation as pleural effusion is rare. Here, we describe a case of 58-year-old male who presented with complaint of left side chest pain and breathlessness. He was investigated and diagnosed as a case of left side pleural effusion due to filariasis, with peripheral blood lymphocytosis but without peripheral blood or pleural fluid eosinophilia. Our case foregrounds that filariasis can present with peripheral blood lymphocytosis and without peripheral blood or pleural fluid eosinophilia...
September 19, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28892473/a-multi-center-field-study-of-two-point-of-care-tests-for-circulating-wuchereria-bancrofti-antigenemia-in-africa
#2
Cédric B Chesnais, Naomi-Pitchouna Awaca-Uvon, Fatoma K Bolay, Michel Boussinesq, Peter U Fischer, Lincoln Gankpala, Aboulaye Meite, François Missamou, Sébastien D Pion, Gary J Weil
BACKGROUND: The Global Programme to Eliminate Lymphatic Filariasis uses point-of-care tests for circulating filarial antigenemia (CFA) to map endemic areas and for monitoring and evaluating the success of mass drug administration (MDA) programs. We compared the performance of the reference BinaxNOW Filariasis card test (ICT, introduced in 1997) with the Alere Filariasis Test Strip (FTS, introduced in 2013) in 5 endemic study sites in Africa. METHODOLOGY: The tests were compared prior to MDA in two study sites (Congo and Côte d'Ivoire) and in three sites that had received MDA (DRC and 2 sites in Liberia)...
September 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28869696/comparison-and-functional-characterization-of-peripheral-blood-mononuclear-cells-isolated-from-filarial-lymphedema-and-endemic-normals-of-a-south-indian-population
#3
Abel Arul Nathan, Madhulika Dixit, Subash Babu, Anand Setty Balakrishnan
OBJECTIVE: The underlying problem in lymphatic filariasis is irreversible swelling of the limbs (lymphedema), which is a unique feature of lymphatic insufficiency. It is still unclear whether the natural ability of lymphatics to form functional lymphatic vasculature is achieved or attenuated in the lymphedemal pathology. Clinical studies have clearly shown that circulating lymphatic progenitors (CLPs), a subset of bone-marrow derived mononuclear cells (PBMCs), contribute to post-natal lymph vasculogenesis...
September 4, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28866640/kinfin-software-for-taxon-aware-analysis-of-clustered-protein-sequences
#4
Dominik R Laetsch, Mark L Blaxter
The field of comparative genomics is concerned with the study of similarities and differences between the information encoded in the genomes of organisms. A common approach is to define gene families by clustering protein sequences based on sequence similarity, and analyse protein cluster presence and absence in different species groups as a guide to biology. Due to the high dimensionality of these data, downstream analysis of protein clusters inferred from large numbers of species, or species with many genes, is non-trivial, and few solutions exist for transparent, reproducible and customisable analyses...
September 2, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28859850/il-4-5-signalling-plays-an-important-role-during-litomosoides-sigmodontis-infection-influencing-both-immune-system-regulation-and-tissue-pathology-in-the-thoracic-cavity
#5
Manuel Ritter, Ruth S Tamadaho, Judith Feid, Wenzel Vogel, Katharina Wiszniewsky, Sven Perner, Achim Hoerauf, Laura E Layland
Approximately 100 million people suffer from filarial diseases including lymphatic filariasis (elephantiasis), onchocerciasis (river blindness) and loiasis. These diseases are amongst the most devastating of the neglected tropical diseases in terms of social and economic impact. Moreover, many infection-induced immune mechanisms in the host, their relationship to disease-related symptoms and the development of pathology within the site of infection remain unclear. To improve on current drug therapies or vaccines, further studies are necessary to decipher the mechanisms behind filaria-driven immune responses and pathology development, and thus the rodent model of Litomosoides sigmodontis can be used to unravel host-filaria interactions...
August 30, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28842188/the-changing-aetiology-of-eosinophilia-in-migrants-and-returning-travellers-in-the-hospital-for-tropical-diseases-london-2002-2015-an-observational-study
#6
Jessica Barrett, Clare E Warrell, Liana Macpherson, Julie Watson, Patricia Lowe, Margaret Armstrong, Christopher J M Whitty
INTRODUCTION: Determining the cause of eosinophilia in patients returning from the tropics continues to present a diagnostic challenge. The history, symptoms and degree of eosinophilia are often poor predictors of eventual diagnosis, but helminths are an important cause. The current British Infection Association recommendations use travel history to guide investigation of eosinophilia. However the global burden of helminth disease and travel patterns have changed over the last 3 decades and guidelines based on previous epidemiology need to be reviewed in the light of current data...
August 24, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28835430/filarial-breast-lump
#7
Dwijesh Kumar Panda, Devi Prasad Mohapatra, Madhusmita Mohanty Mohapatra
Lymphatic filariasis is one of the most debilitating and disfiguring scourges among all diseases. This report presents a case of a woman with recurrent breast nodularity after being previously operated for a suspected breast neoplasm. We would like to highlight the issue of similar clinical presentation of a filarial breast lump and other breast lesions leading to inappropriate therapy.
August 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28835291/occurrence-and-diversity-of-arthropod-transmitted-pathogens-in-red-foxes-vulpes-vulpes-in-western-austria-and-possible-vertical-transplacental-transmission-of-hepatozoon-canis
#8
Adnan Hodžić, Naike Mrowietz, Rita Cézanne, Pia Bruckschwaiger, Sylvia Punz, Verena Elisabeth Habler, Valentina Tomsik, Judit Lazar, Georg G Duscher, Walter Glawischnig, Hans-Peter Fuehrer
Red fox (Vulpes vulpes) is the most abundant wild canid species in Austria, and it is a well-known carrier of many pathogens of medical and veterinary concern. The main aim of the present study was to investigate the occurrence and diversity of protozoan, bacterial and filarial parasites transmitted by blood-feeding arthropods in a red fox population in western Austria. Blood (n = 351) and spleen (n = 506) samples from foxes were examined by PCR and sequencing and the following pathogens were identified: Babesia canis, Babesia cf...
August 24, 2017: Parasitology
https://www.readbyqxmd.com/read/28832604/soil-iron-and-aluminium-concentrations-and-feet-hygiene-as-possible-predictors-of-podoconiosis-occurrence-in-kenya
#9
Jacinta Muli, John Gachohi, Jim Kagai
BACKGROUND: Podoconiosis (mossy foot) is a neglected non-filarial elephantiasis considered to be caused by predisposition to cumulative contact of uncovered feet to irritative red clay soil of volcanic origins in the tropical regions. Data from structured observational studies on occurrence of Podoconiosis and related factors are not available in Kenya. METHODOLOGY/PRINCIPAL FINDINGS: To establish the occurrence and aspects associated with Podoconiosis, a cross-sectional survey was implemented in an area located within 30 km from the foot of volcanic Mount Longonot in the Great Rift Valley in Kenya...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28827998/molecular-cloning-and-characterization-of-protein-disulfide-isomerase-of-brugia-malayi-a-human-lymphatic-filarial-parasite
#10
Pravesh Verma, Pawan Kumar Doharey, Sunita Yadav, Ankur Omer, Poonam Singh, Jitendra Kumar Saxena
Lymphatic filariasis results in an altered lymphatic system and the abnormal enlargement of body parts, causing pain, serious disability and social stigma. Effective vaccines are still not available nowadays, drugs against the disease is required. Protein disulfide isomerase (PDI) is an essential catalyst of the endoplasmic reticulum which is involved in folding and chaperone activities in different biological systems. Here, we report the enzymatic characterization of a Brugia malayi Protein disulfide isomerase (BmPDI), which was expressed and purified from Escherichia coli BL21 (DE3)...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28820369/imported-infections-with-mansonella-perstans-nematodes-italy
#11
Federico Gobbi, Anna Beltrame, Dora Buonfrate, Silvia Staffolani, Monica Degani, Maria Gobbo, Andrea Angheben, Stefania Marocco, Zeno Bisoffi
We report 74 patients in Italy infected with Mansonella perstans nematodes, a poorly described filarial parasite. M. perstans nematodes should be included in the differential diagnosis for patients with eosinophilia from disease-endemic countries. Serologic analysis is useful for screening, and testing for microfilaremia in peripheral blood should be performed for parasite-positive patients.
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28814926/wuchereria-bancrofti-infection-at-four-primary-schools-and-surrounding-communities-with-no-previous-blood-surveys-in-northern-uganda-the-prevalence-after-mass-drug-administrations-and-a-report-on-suspected-non-filarial-endemic-elephantiasis
#12
Emmanuel Igwaro Odongo-Aginya, Alex Olia, Kilama Justin Luwa, Eiji Nagayasu, Anna Mary Auma, Geoffrey Egitat, Gerald Mwesigwa, Yoshitaka Ogino, Eisaku Kimura, Toshihiro Horii
BACKGROUND: A prevalence study of Wuchereria bancrofti infection was carried out in 2014 at 4 study sites in northern Uganda using antigen and microfilaria tests. Each study site consists of a primary school and surrounding communities. These sites are inside the filariasis endemic area and have been covered by mass drug administration under the national elimination programme. However, no prevalence study had been conducted there before the present study. Without information on past and present endemicity levels, our study was meant to be an independent third-party investigation to know the latest filariasis situation...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/28814315/incidental-detection-of-two-adult-gravid-filarial-worms-in-breast-a-case-report
#13
Santosh Tummidi, Kanchan Kothari, Roshni Patil, Shruti S Singhal, Pooja Keshan
BACKGROUND: Microfilaria is a major public health problem in tropical and subtropical countries and is an endemic problem in India. Wuchereria bancrofti is the commonest filarial infection. In some lesions, microfilariae and adult filarial worm have been incidentally detected in fine-needle aspirates. CASE PRESENTATION: A 35 year old hindu female presented with lump in upper outer quadrant of left breast. Fine needle aspiration revealed two adult gravid female filarial worms...
August 16, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28807299/seasonality-and-circadian-variation-of-microfilaremia-in-dogs-experimentally-infected-with-dirofilaria-immitis
#14
Léonore Lovis, Mélanie Grandjean, Laurence Overney, Wolfgang Seewald, Heinz Sager
Periodicity, the cyclical rise and fall in microfilaria (mff) numbers in the peripheral blood over time, is observed in many filarial infections. It is correlated with the necessity for these larval stages to be ingested by the blood feeding vector before they can be transmitted to a new vertebrate host. Microfilariae of the dog heartworm Dirofilaria immitis have been described to show periodicity, but the circadian pattern does not seem to be consistent. Most publications describe the lowest mff-concentrations in the peripheral blood in the early morning, while the highest counts occurred either in the afternoon, in the late evening or shortly after midnight...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28799248/molecular-detection-of-wolbachia-pipientis-in-natural-populations-of-sandfly-vectors-of-leishmania-infantum-in-endemic-areas-first-detection-in-lutzomyia-longipalpis
#15
N O DA Rocha, S M Lambert, A G Dias-Lima, F S Julião, B M P S Souza
A polymerase chain reaction-based method was used to screen sandflies for infection with Wolbachia (Rickettsiales: Rickettsiaceae), an intracellular bacterial endosymbiont found in many arthropods and filarial hosts. Positive results were obtained in five of 200 field-collected sandflies and were confirmed by sequencing. All sandflies were Lutzomyia longipalpis (Diptera: Psychodidae) captured in a region endemic for visceral leishmaniasis in Brazil. This is the first study to identify Wolbachia infection in this Lutzomyia species, which is the main vector of leishmaniasis in the study area...
August 11, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28794687/prevalence-and-risk-factors-associated-with-lymphatic-filariasis-in-american-samoa-after-mass-drug-administration
#16
Shaun P Coutts, Jonathan D King, Molisamoa Pa'au, Saipale Fuimaono, Joseph Roth, Mary Rose King, Patrick J Lammie, Colleen L Lau, Patricia M Graves
BACKGROUND: In 2000, American Samoa had 16.5% prevalence of lymphatic filariasis (LF) antigenemia. Annual mass drug administration (MDA) was conducted using single-dose albendazole plus diethylcarbamazine from 2000 to 2006. This study presents the results of a 2007 population-based PacELF C-survey in all ages and compares the adult filarial antigenemia results of this survey to those of a subsequent 2010 survey in adults with the aim of improving understanding of LF transmission after MDA...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/28789852/recombinant-calponin-of-human-filariid-brugia-malayi-secondary-structure-and-immunoprophylactic-potential
#17
Shiv K Verma, Ashish Arora, P Kalpana Murthy
In the search for potential vaccine candidates for the control of human lymphatic filariasis, we recently identified calponin-like protein, that regulates actin/myosin interactions, in a proinflammatory fraction F8 (45.24-48.64kDa) of Brugia malayi adult worms. In the present study, the gene was cloned, expressed, and the recombinant Calponin of B. malayi (r-ClpBm) was prepared and characterized. r-ClpBm bears homology with OV9M of Onchocerca volvulus, a non-lymphatic filariid that causes loss of vision and cutaneous pathology...
August 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28761487/parasitological-serological-and-molecular-study-of-dirofilaria-immitis-in-domestic-dogs-southeastern-iran
#18
Mehdi Bamorovat, Iraj Sharifi, Majid Fasihi Harandi, Saeed Nasibi, Balal Sadeghi, Javad Khedri, Mohammad Ali Mohammadi
BACKGROUND: Dirofilariasis is a serious and potentially deadly condition in dogs and one of the zoonotic filarial infections, which inadvertently affects the humans. The objectives of this study were to determine the seroprevalence and the molecular identity of dirofilariasis in Kerman Province, southeastern Iran between Jul and Aug 2013. METHODS: A hundred and forty-nine domestic dogs were randomly selected and five ml blood samples were taken from each dog. One ml of anticoagulant (EDTA) was used for each test in the parasitological study (modified Knott's test) and sera samples were examined, using ELISA kit to detect Dirofilaria immitis antigen...
April 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28743489/lipid-profiling-of-the-filarial-nematodes-onchocerca-volvulus-onchocerca-ochengi-and-litomosoides-sigmodontis-reveals-the-accumulation-of-nematode-specific-ether-phospholipids-in-the-host
#19
Vera Wewer, Benjamin L Makepeace, Vincent N Tanya, Helga Peisker, Kenneth Pfarr, Achim Hoerauf, Peter Dörmann
Onchocerciasis, a neglected tropical disease prevalent in western and central Africa, is a major health problem and has been targeted for elimination. The causative agent for this disease is the human parasite Onchocerca volvulus. Onchocerca ochengi and Litomosoides sigmodontis, infectious agents of cattle and rodents, respectively, serve as model organisms to study filarial nematode infections. Biomarkers to determine infection without the use of painful skin biopsies and microscopic identification of larval worms are needed and their discovery is facilitated by an improved knowledge of parasite-specific metabolites...
July 23, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28736941/in-vivo-neutralization-of-%C3%AE-4-and-%C3%AE-7-integrins-inhibits-eosinophil-trafficking-and-prevents-lung-injury-during-tropical-pulmonary-eosinophilia-in-mice
#20
Pankaj Sharma, Aditi Sharma, Mrigank Srivastava
Integrins regulate leukocyte trafficking during homeostasis and inflammatory conditions. However, the role of α4 and β7 integrins in guiding eosinophil transmigration into the lungs during filarial manifestation of Tropical Pulmonary Eosinophilia (TPE) has not been explored. In this study, mice exhibiting TPE manifestations were administered with in vivo neutralizing antibodies against integrins α4 and β7 or their combination and immuno-pathological parameters were evaluated. Results show an intact lung barrier, significantly lower lung inflammation and reduced eosinophil counts in the Bronchoalveolar lavage fluid and lungs of mice receiving anti-α4(+) β7 treatment...
July 24, 2017: European Journal of Immunology
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