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Leishmaniosis

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https://www.readbyqxmd.com/read/29426470/feline-leishmaniosis-is-the-cat-a-small-dog
#1
Maria Grazia Pennisi, Maria Flaminia Persichetti
Leishmania infantum is a vector-borne zoonotic disease transmitted by phlebotomine sand flies and dogs are considered the main reservoir of the parasite. Feline leishmaniosis (FeL) caused by L. infantum is an emergent feline disease more and more frequently reported in endemic areas. This review summarizes current knowledge focusing similarities and differences with canine leishmaniosis (CanL). Cats are infected by the same Leishmania species than dogs but prevalence of the infection is lower and cases of disease are less frequently reported...
February 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29422317/laryngeal-granuloma-due-to-leishmania-spp-infection-in-a-dog
#2
E Torrent, J Pastor, L Fresno, I Vigueras, M I Casanova, A Ramis, L Solano-Gallego
A French bulldog with a previous history of leishmaniosis was presented due to respiratory distress associated with a laryngeal mass. The mass was excised and cytological and histopathological examination revealed pyogranulomatous inflammation with Leishmania spp. amastigotes. After surgery, the respiratory condition resolved; however, 3 months later the dog developed clinicopathological signs of leishmaniosis, which improved with systemic treatment. This case shows an atypical presentation of leishmaniosis with a focal tumour-like mass in the vocal folds as the only clinical sign...
January 2018: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29422316/histological-and-immunological-description-of-the-leishmanin-skin-test-in-ibizan-hounds
#3
L Ordeix, J E Dos S Silva, J Llull, P Quirola, S Montserrat-Sangrà, P Martínez-Orellana, L Solano-Gallego
The leishmanin skin test (LST), a delayed-type hypersensitivity (DTH) reaction to Leishmania infantum, can specifically identify dogs that have made a cell-mediated immune response to L. infantum infection. The Ibizan hound appears to be more resistant to L. infantum infection than other breeds of dog. The aim of this study was to describe the histological and immunohistochemical changes induced by the LST in Ibizan hounds living in an area highly endemic for leishmaniosis. The majority of dogs were apparently healthy, lacked serum antibody to L...
January 2018: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29368453/the-role-of-hla-g-in-parasitic-diseases
#4
REVIEW
A Sabbagh, P Sonon, I Sadissou, C T Mendes-Junior, A Garcia, E A Donadi, D Courtin
Little attention has been devoted to the role of HLA-G gene and molecule on parasitic disorders, and the available studies have focused on malaria, African and American trypanosomiasis, leishmaniosis, toxoplasmosis and echinococcosis. After reporting a brief description regarding the role of the cells of innate and adaptive immune system against parasites, we reviewed the major features of the HLA-G gene and molecule and the role of HLA-G on the major cells of immune system. Increased levels of soluble HLA-G (sHLA-G) have been observed in patients presenting toxoplasmosis and in the active phase of echinococcosis...
January 25, 2018: HLA
https://www.readbyqxmd.com/read/29345601/vaccine-effectiveness-and-use-of-collar-impregnated-with-insecticide-for-reducing-incidence-of-leishmania-infection-in-dogs-in-an-endemic-region-for-visceral-leishmaniasis-in-brazil
#5
E G Lopes, A P Sevá, F Ferreira, C M Nunes, L B Keid, R M Hiramoto, H L Ferreira, T M F S Oliveira, F G Ovallos, E A B Galati, T J Villegas, D V Bortoletto, S Y O B Valadas, R M Soares
Although a national programme for control of visceral leishmaniosis (VL) is being run in Brazil, the disease continues to spread. This programme is essentially based on culling infected dogs from endemic regions. Thus, there is an urgent need to develop other control measures against VL to deter its advance. Here, a subunit vaccine, a recombinant vaccine, an insecticide-impregnated collar and the associations between these measures were evaluated for reducing the incidence of Leishmania infection in dogs. This was through a cohort study conducted in an endemic region of Brazil, considering the incidence and time of total exposure over a period of 1 year...
January 18, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29174223/novel-areas-for-prevention-and-control-of-canine-leishmaniosis-trends-in-parasitology-33-718-730-2017
#6
Guadalupe Miró, Christine Petersen, Luís Cardoso, Patrick Bourdeau, Gad Baneth, Laia Solano-Gallego, Maria Grazia Pennisi, Lluís Ferrer, Gaetano Oliva
No abstract text is available yet for this article.
November 23, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/29173539/leishmania-infantum-specific-ifn-%C3%AE-production-in-stimulated-blood-from-dogs-with-clinical-leishmaniosis-at-diagnosis-and-during-treatment
#7
Pamela Martínez-Orellana, Daniel Marí-Martorell, Sara Montserrat-Sangrà, Laura Ordeix, Gad Baneth, Laia Solano-Gallego
There is limited data regarding Leishmania infantum specific T cell mediated immunity in naturally infected sick dogs at the time of diagnosis and during anti-Leishmania treatment. Our aim was to investigate the kinetics of L. infantum specific IFN-γ production in dogs with leishmaniosis at the time of diagnosis and during treatment and to correlate it with specific L. infantum antibodies, blood parasitemia and clinicopathological findings. Thirty-four dogs were diagnosed with leishmaniosis based on physical examination, routine laboratory tests and L...
December 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/29173534/canine-neutrophils-activate-effector-mechanisms-in-response-to-leishmania-infantum
#8
REVIEW
Maria Pereira, Ana Valério-Bolas, David Santos-Mateus, Graça Alexandre-Pires, Marcos Santos, Armanda Rodrigues, Hugo Rocha, Ana Santos, Catarina Martins, Ana Tomas, Filipe Passero, Isabel Pereira da Fonseca, Gabriela Santos-Gomes
Canine leishmaniosis caused by L. infantum is a severe zoonotic disease. Although macrophages are the definitive host cells, neutrophils are the first cells to encounter the parasite soon after its inoculation in the dermis by the phlebotomine vector. To study the interaction of dog neutrophils and L. infantum promastigotes, blood neutrophils were isolated from healthy donors and the infection was established in vitro. In the majority of the dogs, L. infantum was efficiently phagocytized by neutrophils, and oxidative (superoxide production) and non-oxidative (neutrophil elastase exocytosis) intracellular effector mechanisms were activated, but the release of neutrophil extracellular traps was minimized...
December 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/29164321/canine-leishmania-infantum-infection-an-imported-case-in-uk-after-staying-in-the-canary-islands
#9
J R S Dandrieux, F Sacchini, G Harms, M Globokar, H-J Balzer, Nikola Pantchev
Leishmaniosis is reported in the Iberian Peninsula and the Balearic Islands, but the Canary Islands are deemed free. In the present communication, we report a clinical leishmaniosis due to Leishmania infantum in a dog that was presumptively infected during its stay on Tenerife. The result of Leishmania serology (whole-cell based ELISA with L. infantum antigen) was high positive (test score of 82.2 at a cut-off value of 12.0). This result was further confirmed with quantitative real-time polymerase chain reaction (qPCR) for Leishmania spp...
November 21, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29163980/follow-up-monitoring-in-a-cat-with-leishmaniosis-and-coinfections-with-hepatozoon-felis-and-candidatus-mycoplasma-haemominutum
#10
Charalampos Attipa, Kyriaki Neofytou, Christos Yiapanis, Pamela Martínez-Orellana, Gad Baneth, Yaarit Nachum-Biala, Harriet Brooks-Brownlie, Laia Solano-Gallego, Séverine Tasker
Case summary: A 6-year-old female neutered domestic shorthair cat from Cyprus was presented with multiple ulcerated skin nodules. Cytology and histopathology of the lesions revealed granulomatous dermatitis with intracytoplasmic organisms, consistent with amastigotes of Leishmania species. Biochemistry identified a mild hyperproteinaemia. Blood extraction and PCR detected Leishmania species, Hepatozoon species and 'Candidatus Mycoplasma haemominutum' (CMhm) DNA. Subsequent sequencing identified Hepatozoon felis...
July 2017: JFMS Open Reports
https://www.readbyqxmd.com/read/29155831/prevalence-and-risk-factors-associated-with-leishmania-infection-in-trang-province-southern-thailand
#11
Jipada Manomat, Saovanee Leelayoova, Lertwut Bualert, Peerapan Tan-Ariya, Suradej Siripattanapipong, Mathirut Mungthin, Tawee Naaglor, Phunlerd Piyaraj
BACKGROUND: Autochthonous cutaneous and visceral leishmaniasis (VL) caused by Leishmania martiniquensis and Leishmania siamensis have been considered emerging infectious diseases in Thailand. The disease burden is significantly underestimated, especially the prevalence of Leishmania infection among HIV-positive patients. METHODS: A cross-sectional study was conducted to determine the prevalence and risk factors associated with Leishmania infection among patients with HIV/AIDS living in Trang province, southern Thailand, between 2015 and 2016...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29153900/clinicopathological-findings-in-sick-dogs-naturally-infected-with-leishmania-infantum-comparison-of-five-different-clinical-classification-systems
#12
A Meléndez-Lazo, L Ordeix, M Planellas, J Pastor, L Solano-Gallego
A wide spectrum of clinical and clinicopathological findings in dogs with canine leishmaniosis (CanL) due to Leishmania infantum exists. However, the majority of clinical descriptions have been published a long time ago and recent studies in Europe are almost lacking. In addition, clinical classification of sick dogs is not well-standardized, with different classification systems used by clinical and epidemiological studies, making comparison of studies a difficult task. The aims of the study were to describe the clinicopathological findings of dogs naturally infected with L...
November 10, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29100256/radiological-diagnoses-in-the-context-of-emigration-infectious-diseases
#13
Marija Stojkovic, Jan Müller, Thomas Junghanss, Tim Frederik Weber
BACKGROUND:  Globalization and emigration impact on the spectrum of diseases challenging health care systems. Medical practitioners have to particularly prepare for infectious diseases. METHODS:  The database of a health care center specialized on tropical medicine was screened for patients with history of migration and one of the following diagnoses: Cystic echinococcosis, tuberculosis, schistosomiasis, visceral leishmaniosis, and neurocysticercosis. Representative casuistics were prepared from select case histories...
February 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29092797/gold-nanoparticles-against-parasites-and-insect-vectors
#14
REVIEW
Giovanni Benelli
Nanomaterials are currently considered for many biological, biomedical and environmental purposes, due to their outstanding physical and chemical properties. The synthesis of gold nanoparticles (Au NPs) is of high interest for research in parasitology and entomology, since these nanomaterials showed promising applications, ranging from detection techniques to drug development, against a rather wide range of parasites of public health relevance, as well as on insect vectors. Here, I reviewed current knowledge about the bioactivity of Au NPs on selected insect species of public health relevance, including major mosquito vectors, such as Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus...
October 29, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29061137/performance-of-leishmania-pfr1-recombinant-antigen-in-serological-diagnosis-of-asymptomatic-canine-leishmaniosis-by-elisa
#15
Darién Ledesma, Eduardo Berriatua, M Carmen Thomas, Luis Jesús Bernal, María Ortuño, Celia Benitez, Adriana Egui, Kostas Papasouliotis, Bryn Tennant, Julia Chambers, Juan José Infante, Manuel Carlos López
BACKGROUND: Leishmania infantum is a protozoan parasite transmitted by phlebotomine sand flies that causes life-threatening disease in humans and dogs. The dog is the primary reservoir of the parasite and early diagnosis of canine leishmaniosis is crucial at the clinical and epidemiological level. The currently available serological tests for CanL diagnostic show limitations therefore the aim of the present study was to investigate the diagnostic performance of an indirect antibody ELISA based on the Leishmania infantum recombinant antigen PFR1 in asymptomatically infected dogs...
October 23, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29045624/long-term-cell-culture-isolated-from-lesions-of-mice-infected-with-leishmania-amazonensis-a-new-approach-to-study-mononuclear-phagocyte-subpopulations-during-the-infection
#16
Myriam Janeth Salazar Terreros, Luis Augusto Visani de Luna, Selma Giorgio
Leishmanioses are neglected diseases and the parasite Leishmania survives and proliferates within mononuclear phagocytes, particularly macrophages. In vitro studies of the immunology and cell biology of leishmaniosis are performed in murine peritoneum and bone marrow macrophages and immortalized cell lines despite the normal and injured tissue-specific heterogeneity of macrophages. In this work, we established an ex vivo methodology to culture lesional cells from BALB/c mice infected with Leishmania amazonensis...
November 30, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28986939/leishmania-infection-in-rodents-in-greece
#17
Ιoannis Tsakmakidis, Katerina Angelopoulou, Chrysostomos I Dovas, Εmmanouil Dokianakis, Αndroniki Tamvakis, Isaia Symeonidou, Μaria Antoniou, Αnastasia Diakou
OBJECTIVE: To investigate the prevalence of Leishmania infection in rodents from various areas of northern Greece. METHODS: Ninety-seven rodents (66 Mus musculus, 19 Rattus norvegicus and 12 R. rattus) were collected during pest control programmes and examined by cytology (spleen and liver smears), serology (ELISA) and PCR (real-time and gel-based) for Leishmania. Date, environment, sex, existence of dogs in the close environment were recorded for each rodent. RESULTS: All cytological preparations were negative, whereas specific IgG was detected in 54...
December 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28979340/iranian-native-plants-on-treatment-of-cutaneous-leishmaniosis-a-narrative-review
#18
REVIEW
Elham Moghaddas, Ali Khamesipour, Mehdi Mohebali, Abdolmajid Fata
BACKGROUND: Chemotherapy still relies on the use of pentavalent antimonials, amphotericin B, paromomycin, miltefosin, and allopurinol. In this study, we explained about the native plant that grows in different regions of Iran and used as anti-leishmanial in Iran and even many other countries. METHODS: This narrative review covers all information about local herbal medicine in Iran that used in treatment of cutaneous leishmaniasis in all the worlds, published in local and international journals from 1996 to 2015 using various databases including PubMed, SID, Google Scholar, Scopus, and Science Direct...
July 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28929498/dog-skin-parasite-load-tlr-2-il-10-and-tnf-%C3%AE-expression-and-infectiousness
#19
D C M Pereira-Fonseca, F M Oliveira-Rovai, L A C Rodas, C A C Beloti, R B P Torrecilha, P K R K Ito, S V Avanço, R S Cipriano, Y T Utsunomiya, R M Hiramoto, L Calvo-Bado, O Courtenay, G F Machado, V M F Lima, C M Nunes
Visceral leishmaniosis is a zoonotic disease that is transmitted by Lutzomyia longipalpis sandflies. Dogs are the main peri-urban reservoir of the disease, and progression of canine leishmaniosis is dependent on the type of immune response elaborated against the parasite. Type 1 immunity is characterized by effective cellular response, with production of pro-inflammatory cytokines such as tumour necrosis factor alpha (TNF-α). In contrast, Type 2 immunity is predominantly humoral, associated with progression of the disease and mediated by anti-inflammatory cytokines such as interleukin 10 (IL-10)...
November 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28915996/alternative-strategy-for-visceral-leishmaniosis-control-hisak70-salmonella-choleraesuis-pulsed-dendritic-cells
#20
Gustavo Domínguez-Bernal, Abel Martínez-Rodrigo, Alicia Mas, M Mar Blanco, José A Orden, Ricardo De La Fuente, Javier Carrión
Here, we describe a novel approach that exploits an attenuated mutant of Salmonella enterica serovar Choleraesuis as carrier to deliver a plasmid encoding protein HisAK70. Subsequently, dendritic cells (DCs) were pulsed with this vaccine vector. The aim of this study was to evaluate the effectiveness of the prepared HisAK70-S. Choleraesuis-pulsed DCs (HisAK70-SAL DCs) against visceral leishmaniosis (VL). In our ex vivo model of infection, the prepared formulations could decrease parasite growth by up to 80% by augmenting the production of IL-12p40 and by reducing arginase activity (ARG)...
October 2017: Comparative Immunology, Microbiology and Infectious Diseases
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