Antibodies against Toxoplasma gondii in bats ( Desmodus rotundus ) captured near caves in cities from western region of Santa Catarina State, Brazil

This study aimed to investigate the presence of antibodies against T. gondii in the serum of 50 vampire bats (Desmodus rotundus) from the western region of Santa Catarina State, Brazil, using the modified agglutination test (MAT), in a dilution of 1:25. The results showed 10 % (5/50) are seropositive for T. gondii, showing that bats from that region had contact with T. gondii and are probably infected.
Source: Comparative Clinical Pathology - Category: Pathology Source Type: research

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Publication date: 19 November 2019Source: Cell Reports, Volume 29, Issue 8Author(s): Wiebke Hartmann, Marie-Luise Brunn, Nadine Stetter, Nicola Gagliani, Franziska Muscate, Stephanie Stanelle-Bertram, Gülsah Gabriel, Minka BreloerSummaryHelminth parasites infect more than a quarter of the human population and inflict significant changes to the immunological status of their hosts. Here, we analyze the impact of helminth infections on the efficacy of vaccinations using Litomosoides sigmodontis-infected mice. Concurrent helminth infection reduces the quantity and quality of antibody responses to vaccination against seaso...
Source: Cell Reports - Category: Cytology Source Type: research
Molecular and Histopathological Data on Levisunguis subaequalis Curran, Overstreet, Collins &Benz, 2014 (Pentastomida: Eupentastomida: Porocephalida: Porocephaloidea: Sebekidae: Sebekinae) from Gambusia affinis in Alabama, USA. J Parasitol. 2019 Dec;105(6):827-839 Authors: Woodyard ET, Stilwell JM, Camus AC, Rosser TG Abstract Levisunguis subaequalis Curran, Overstreet, Collins &Benz, 2014 , was recently described from the lungs of the definitive hosts, softshell turtles, Apalone ferox (Schneider, 1783), and Apalone spinifera aspera (Agassiz, 1857) as well as the viscera of an intermediate hos...
Source: The Journal of Parasitology - Category: Parasitology Authors: Tags: J Parasitol Source Type: research
This study highlights the remarkable genetic diversity in Blastocystis sp. isolates from zoo animals and provides the first molecular evidence from spotted deer, gayal and grey langur. Due to circulation of large percentage of potentially zoonotic subtypes in the wild animals, there is a higher risk of zoonotic transmission of Blastocystis sp. in the zoo keepers and visitors.Graphical abstract
Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research
(Duke University) Engineers at Duke University have developed a microscope that adapts its lighting angles, colors and patterns while teaching itself the optimal settings needed to complete a given diagnostic task. In the initial proof-of-concept study, the microscope simultaneously developed a lighting pattern and classification system that allowed it to quickly identify red blood cells infected by the malaria parasite more accurately than trained physicians and other machine learning approaches.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
Publication date: Available online 19 November 2019Source: International Journal of PharmaceuticsAuthor(s): Leonie Wagner-Hattler, Gabriela Québatte, Jennifer Keiser, Joachim Schoelkopf, Christian M. Schlepütz, Jörg Huwyler, Maxim PuchkovAbstractUniform drug distribution within fast disintegrating tablets is a key quality measure to ensure a reliable, steady, and targeted release of the contained active pharmaceutical ingredients. In this work, the drug particle distribution in mini-tablets was studied with synchrotron phase contrast X-ray microtomography. Mini-tablets had a weight of 9.5 mg and a drug loa...
Source: International Journal of Pharmaceutics - Category: Drugs & Pharmacology Source Type: research
This study aimed to provide data on the occurrence, genetic characterization, and epidemiological significance of Sarcocystis spp. in cattle destined for human consumption in Romania. A total of 117 heart samples from slaughtered cattle in three southwestern Romanian counties (Dolj, Timiș, and Gorj) were analyzed in order to detect sarcocysts, using fresh examination microscopic techniques. Subsequently, the isolated sarcocysts and/or cyst fragments (5-15 per sample) from each infected animal were molecularly characterized. Overall, 17.9% (21/117) of the tested animals were found to be Sarcocystis spp. positive by microsc...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
Abstract Background: Leishmaniasis is an infectious disease caused by an intracellular parasite of Leishmania and is transmitted through the female sandflies bite and may lead to severe skin lesions. Although drugs such as antimony compounds are available, their side effects such as toxicity, low efficacy, and emergence of resistance have raised the importance of effective replacement. Imatinib, as an inhibitor of tyrosine kinase (TK) of Leishmania, stops abnormal function of TK such as Bcr-Abl through assembling into transmembrane pores in a sterol-dependent manner. Hence, the evaluation of killing effects of dif...
Source: Biomed Res - Category: Research Authors: Tags: Adv Biomed Res Source Type: research
Clinical manifestation of malaria is mainly due to intra-erythrocytic development of Plasmodium parasites. Plasmodium falciparum merozoites, the invasive form of the blood-stage parasite, invade human erythrocytes in a complex but rapid process. This multi-step progression involves interactions between parasite and human host proteins. Here we show that antibodies against a vaccine antigen, PfGAMA, co-immunoprecipitate with PfMSP10. This interaction was validated as direct by surface plasmon resonance analysis. We then demonstrate that antibodies against PfMSP10 have growth inhibitory activity against cultured parasites, w...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Human African trypanosomiasis (HAT) caused by the extracellular protozoon Trypanosoma brucei, is a neglected tropical disease affecting the poorest communities in sub-Saharan Africa. HAT progresses from a hemolymphatic first stage (S1) to a meningo-encephalitic late stage (S2) when parasites reach the central nervous system (CNS), although the existence of an intermediate stage (Int.) has also been proposed. The pathophysiological mechanisms associated with the development of S2 encephalopathy are yet to be fully elucidated. Here we hypothesized that HAT progression toward S2 might be accompanied by an increased release of...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
In conclusion, Trypanosoma species express a copper-transporting P1B-1-type ATPase and together with other copper-binding proteins identified in the genomes of kinetoplastid parasites may constitute potential targets for anti-trypanosomal drug discovery.Graphical abstract
Source: Molecular and Biochemical Parasitology - Category: Parasitology Source Type: research
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