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parasite, parasitic, cestode, nematode, trematode

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https://www.readbyqxmd.com/read/28794984/seasonality-richness-and-prevalence-of-intestinal-parasites-of-three-neotropical-primates-alouatta-seniculus-ateles-hybridus-and-cebus-versicolor-in-a-fragmented-forest-in-colombia
#1
Silvia Rondón, Mario Ortiz, Cielo León, Nelson Galvis, Andrés Link, Camila González
Studies on parasites infecting non-human primates are essential to better understand the potential threat to humans of zoonoses transmission, particularly under the current processes of pervasive land use change and biodiversity loss. The natural ecosystems in the Middle Magdalena river basin in Colombia have suffered a dramatic reduction and transformation into pastures and agroindustrial monocultures, threatening their biodiversity, and probably affecting the dynamics between parasites and their hosts, as well as altering the disease transmission cycles between wild populations and humans...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28757123/molecular-and-biochemical-characterisation-and-recognition-by-the-immune-host-of-the-glyceraldehyde-3-phosphate-dehydrogenase-gapdh-of-the-abomasal-nematode-parasite-teladorsagia-circumcincta
#2
S Umair, C L G Bouchet, J S Knight, A Pernthaner, H V Simpson
A 1023 bp full length cDNA encoding Teladorsagia circumcincta GAPDH (TeciGAPDH) was cloned, expressed in Escherichia coli and the recombinant protein purified and its kinetic properties determined. A phylogenetic tree was constructed using helminth GAPDH sequences. The predicted protein consisted of 341 amino acids and was present as a single band of about 38 kDa on SDS-PAGE. Multiple alignments of the protein sequence of TeciGAPDH with homologues from other helminths showed that the greatest similarity (93%) to the GAPDH of Haemonchus contortus and Dictyocaulus viviparus, 82-86% similarity to the other nematode sequences and 68-71% similarity to cestode and trematode enzymes...
July 27, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28692673/gastrointestinal-parasite-infections-and-self-medication-in-wild-chimpanzees-surviving-in-degraded-forest-fragments-within-an-agricultural-landscape-mosaic-in-uganda
#3
Matthew R McLennan, Hideo Hasegawa, Massimo Bardi, Michael A Huffman
Monitoring health in wild great apes is integral to their conservation and is especially important where they share habitats with humans, given the potential for zoonotic pathogen exchange. We studied the intestinal parasites of wild chimpanzees (Pan troglodytes schweinfurthii) inhabiting degraded forest fragments amid farmland and villages in Bulindi, Uganda. We first identified protozoan and helminth parasites infecting this population. Sixteen taxa were demonstrated microscopically (9 protozoa, 5 nematodes, 1 cestode, and 1 trematode)...
2017: PloS One
https://www.readbyqxmd.com/read/28668323/cestode-parasites-release-extracellular-vesicles-with-micrornas-and-immunodiagnostic-protein-cargo
#4
María Eugenia Ancarola, Antonio Marcilla, Michaela Herz, Natalia Macchiaroli, Matías Pérez, Sebastián Asurmendi, Klaus Brehm, Carolina Poncini, Mara Rosenzvit, Marcela Cucher
Intercellular communication is crucial in multiple aspects of cell biology. This interaction can be mediated by several mechanisms including extracellular vesicle (EV) transfer. EV secretion by parasites has been reported in protozoans, trematodes and nematodes. Here we report that this mechanism is present in three different species of cestodes, Taenia crassiceps, Mesocestoides corti and Echinococcus multilocularis. To confirm this we determined, in vitro, the presence of EVs in culture supernatants by transmission electron microscopy...
June 29, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28616494/community-based-surveillance-of-zoonotic-parasites-in-a-one-health-world-a-systematic-review
#5
REVIEW
J M Schurer, E Mosites, C Li, S Meschke, P Rabinowitz
The One Health (OH) concept provides an integrated framework for observing and improving health issues involving human, animal, and environmental factors, and has been applied in particular to zoonotic disease problems. We conducted a systematic review of English and Chinese language peer-reviewed and grey literature databases to identify zoonotic endoparasite research utilizing an OH approach in community-based settings. Our review identified 32 articles where specimens collected simultaneously from all three OH domains (people, animals, and the environment) were assessed for endoparasite infection or exposure...
December 2016: One Health
https://www.readbyqxmd.com/read/28615889/helminth-parasites-of-the-eurasian-water-shrew-neomys-fodiens-pennant-1771-in-south-west-belarus
#6
V V Shimalov
The result of helminthological investigation of 25 Eurasian water shrews during 1996-2011 in South-West Belarus is presented. Sixteen species of helminths (8 species of trematodes, 3 species of cestodes and 5 species of nematodes) were discovered in 92.0 % of animals (23 infected individuals). The most common species is the trematode Neoglyphe locellus (Kossack, 1910). The cestode Triodontolepis sumavensis (Prokopič, 1957), nematodes Capillaria konstantini Romashov, 1999 and Longistriata neomi Lubarskaja, 1962 is specified in Belarus for the first time...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28450853/micromanagement-of-immune-system-role-of-mirnas-in-helminthic-infections
#7
REVIEW
Naina Arora, Shweta Tripathi, Aloukick K Singh, Prosenjit Mondal, Amit Mishra, Amit Prasad
Helminthic infections fall under neglected tropical diseases, although they inflict severe morbidity to human and causes major economic burden on health care system in many developing countries. There is increased effort to understand their immunopathology in recent days due to their immuno-modulatory capabilities. Immune response is primarily controlled at the transcriptional level, however, microRNA-mediated RNA interference is emerging as important regulatory machinery that works at the translation level...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28426423/the-discovery-of-acanthocephalans-parasitizing-chaetognaths
#8
Horacio Lozano-Cobo, Jaime Gómez-Gutiérrez, Carmen Franco-Gordo, María Del Carmen Gómez Del Prado-Rosas
A comprehensive literature review shows that 12 types of pathogens, micropredators and parasites are reported to interact with chaetognaths, mostly digenean trematodes, cestodes and nematodes larval stages. Through analysis of 78,152 chaetognaths from a monthly zooplankton time series (Jan 1996-Dec 1998) collected in the Mexican Central Pacific twelve acanthocephalan larvae parasitizing chaetognaths were discovered. This is the first record of an acanthocephalan parasitizing chaetognaths, raising to 13 the types of symbionts known to interact with them (excluding predators)...
June 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28420310/helminth-fauna-associated-with-three-neotropical-bat-species-chiroptera-mormoopidae-in-veracruz-m%C3%A3-xico
#9
Emilio Clarke-Crespo, Gerardo Pérez-Ponce de León, Salvador Montiel-Ortega, Miguel Rubio-Godoy
Bats are recognized as potential hosts of pathogens exploiting the food chain to reach them as definitive hosts. However, very little is known about their endoparasites, especially for Neotropical bats. In this study, we assessed the helminth fauna associated with 3 insectivorous bat species roosting in the same single hot cave in central Veracruz, México: Mormoops megalophylla, Pteronotus davyi, and Pteronotus personatus. During a period of 1 yr (April 2007-2008), 135 mormoopid bats in total were collected and examined for helminths...
August 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28289269/epidemiological-investigation-of-parasitic-infection-of-schoolchildren-from-six-elementary-schools-in-sakon-nakhon-province-thailand
#10
Ryuichi Doi, Makoto Itoh, Somchai Chakhatrakan, Shoji Uga
We conducted an epidemiological study of intestinal parasitic infection in 572 schoolchildren aged 4 to 12 years old from six elementary schools in Sakon Nakhon Province, Thailand from June 2013 to August 2014. We collected fecal, blood, and urine samples to investigate parasitic infection and conducted a questionnaire survey. Soil samples were examined for egg contamination. Fecal examination, using the formalin-ether sedimentation method, revealed that 39% of schoolchildren were infected with eight genera and eight species of parasites; three nematodes, two trematodes, one cestode, and two protozoa...
February 15, 2017: Kobe Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260533/an-updated-look-at-the-uneven-distribution-of-cryptic-diversity-among-parasitic-helminths
#11
G Pérez-Ponce de León, R Poulin
Cryptic parasite diversity is a major issue for taxonomy and systematics, and for attempts to control diseases of humans, domestic animals and wildlife. Here, we re-examine an earlier report that, after correcting for sampling effort, more cryptic species of trematodes are found per published study than for other helminth taxa. We performed a meta-analysis of 110 studies that used DNA sequences to search for cryptic species in parasitic helminth taxa. After correcting for study effort and accounting for the biogeographical region of origins, we found that more cryptic species tend to be uncovered among trematodes, and fewer among cestodes and animal-parasitic nematodes, than in other helminth groups...
March 6, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28128348/population-expansion-and-individual-age-affect-endoparasite-richness-and-diversity-in-a-recolonising-large-carnivore-population
#12
Ines Lesniak, Ilja Heckmann, Emanuel Heitlinger, Claudia A Szentiks, Carsten Nowak, Verena Harms, Anne Jarausch, Ilka Reinhardt, Gesa Kluth, Heribert Hofer, Oliver Krone
The recent recolonisation of the Central European lowland (CEL) by the grey wolf (Canis lupus) provides an excellent opportunity to study the effect of founder events on endoparasite diversity. Which role do prey and predator populations play in the re-establishment of endoparasite life cycles? Which intrinsic and extrinsic factors control individual endoparasite diversity in an expanding host population? In 53 individually known CEL wolves sampled in Germany, we revealed a community of four cestode, eight nematode, one trematode and 12 potential Sarcocystis species through molecular genetic techniques...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070088/population-and-growth-related-differences-in-helminthic-fauna-of-finless-porpoises-neophocaena-asiaeorientalis-in-five-japanese-populations
#13
Akira Shiozaki, Masao Amano
A survey of helminths and ectoparasites, including epizoits, was conducted in narrow-ridged finless porpoises (Neophocaena asiaeorientalis) from Japanese five populations using dead stranded or incidentally caught animals. In total, 13 helminth species were found (6 nematodes, 4 trematodes, 2 cestodes and 1 acanthocephalan) in 137 porpoises. A new location record of Stenurus nanjingensis and a new host record of Tetrabothrius sp. were obtained. Eight species of helminth were considered common in the Japanese populations of the finless porpoise: Pharurus sunameri, Pharurus asiaeorientalis, Nasitrema spathulatum, Nasitrema sunameri, Halocercus pingi, Halocercus sunameri, Campula oblonga and Synthesium elongatum...
March 18, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28030941/diagnostics-of-intestinal-parasites-in-light-microscopy-among-the-population-of-children-in-eastern-afghanistan
#14
Krzysztof Korzeniewski, Agata Smoleń, Alina Augustynowicz, Anna Lass
OBJECTIVES: The Afghans, living in poor socioeconomic conditions, are estimated to be a community with a high rate of intestinal parasitic infections. The aim of the study was to estimate the prevalence and species of intestinal parasites among children's population in eastern Afghanistan and to present the methods of optimizing the techniques for identification of pathogens in light microscopy. The research was carried out as a part of humanitarian project Capacity building of health care system in Ghazni Province...
December 23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28004635/host-specificity-and-the-structure-of-helminth-parasite-communities-of-fishes-in-a-neotropical-river-in-mexico
#15
Guillermo Salgado-Maldonado, María Teresa Novelo-Turcotte, Juan Manuel Caspeta-Mandujano, Gabriela Vazquez-Hurtado, Benjamin Quiroz-Martínez, Norman Mercado-Silva, Mario Favila
In a tropical locality of Río La Antigua, Veracruz, Mexico, 11 fish species, represented by 244 individual fish from six freshwater fish families living sympatrically and synchronically, were examined for helminth parasites. A total of 36 taxa of helminths were recorded, 24 autogenic and 12 allogenic forms, including 6 monogeneans, 14 trematodes, 1 cestode, and 15 nematodes. Most helminth taxa were recovered for 10/11 of the component communities we analyzed. The results contribute empirical evidence that host specificity is an important force in the development of helminth communities of freshwater fishes...
2016: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/27939767/molecular-and-biochemical-characterisation-and-recognition-by-the-immune-host-of-the-enolase-of-the-abomasal-nematode-parasite-teladorsagia-circumcincta
#16
S Umair, C L G Bouchet, J S Knight, A Pernthaner, H V Simpson
A 1299 bp full length cDNA encoding Teladorsagia circumcincta enolase (TeciENO) was cloned, expressed in Escherichia coli and the recombinant protein purified and its kinetic properties determined. Helminth enolase sequences were used to construct a phylogenetic tree. The predicted protein consisted of 433 amino acids and was present as a single band of about 50 kDa on SDS-PAGE. Multiple alignments of the protein sequence of TeciENO with homologues from other helminths showed 98% similarity with Haemonchus contortus enolase, 78-95% similarity to other nematode sequences and 72-75% similarity to cestode and trematode enolases...
January 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/27821691/recombinase-polymerase-amplification-compared-to-real-time-polymerase-chain-reaction-test-for-the-detection-of-fasciola-hepatica-in-human-stool
#17
COMPARATIVE STUDY
Miguel M Cabada, Jose L Malaga, Alejandro Castellanos-Gonzalez, Kelli A Bagwell, Patrick A Naeger, Hayley K Rogers, Safa Maharsi, Maryann Mbaka, A Clinton White
Fasciola hepatica is the most widely distributed trematode infection in the world. Control efforts may be hindered by the lack of diagnostic capacity especially in remote endemic areas. Polymerase chain reaction (PCR)-based methods offer high sensitivity and specificity but require expensive technology. However, the recombinase polymerase amplification (RPA) is an efficient isothermal method that eliminates the need for a thermal cycler and has a high deployment potential to resource-limited settings. We report on the characterization of RPA and PCR tests to detect Fasciola infection in clinical stool samples with low egg burdens...
February 8, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27787210/the-prevalence-of-helminth-parasites-in-pelophylax-nigromaculatus-anura-ranidae-from-shanghai-china
#18
Qifei Men, Hongyu Han, Qiping Zhao, Weili Xia, Hui Dong, Shunhai Zhu, Ziwen Wang, Cong Li, Xuelong Zhu, Bing Huang
Parasites are ubiquitous members of biotic communities. To investigate the infective status of helminth parasites in Pelophylax nigromaculatus from Shanghai, 90 frogs were collected from July 2013 to July 2014 and examined for the presence of internal parasites. Of these, 86.67% (78/90) of frogs were infected with parasites, the total helminth intensity within infected frogs ranged from 1 to 367, and the mean intensity was 28.49. The infection rates and intensities were 78.89% and 22.89 for trematodes, 50.00% and 5...
December 1, 2016: Acta Parasitologica
https://www.readbyqxmd.com/read/27677375/the-influence-of-geographical-location-host-maturity-and-sex-on-intestinal-helminth-communities-of-the-double-crested-cormorant-phalacrocorax-auritus-from-the-eastern-united-states
#19
K L Sheehan, K C Hanson-Dorr, B S Dorr, G K Yarrow, R J Johnson
Here the intestinal helminth infracommunities of 218 double-crested cormorants (Phalacrocorax auritus) from 11 locations in Alabama, Minnesota, Mississippi and Vermont are documented. Trematode infections were present in 98% of hosts; 65% of cormorants carried cestode infections, 4% were infected with acanthocephalans and 66% had nematode intestinal parasites. Parasite infracommunities of hosts collected on wintering grounds had higher richness and diversity than did birds collected on breeding grounds. Differences in parasite richness and diversity between male and female P...
September 28, 2016: Journal of Helminthology
https://www.readbyqxmd.com/read/27605796/occurrence-and-intensity-of-parasites-in-wels-catfish-silurus-glanis-l-1758-from-amirkelayeh-wetland-southwest-of-the-caspian-sea
#20
Hossein Khara, Masoud Sattari
Amirkelayeh international wetland with a surface area of 1,230 hectares and fifteen fish species is an important water resource in the southern part of the Caspian Sea. There is few reports on fish parasites of this area. In the present study, a total of 80 Wels catfish, Silurus glanis, were collected from April through July 2011. After recording biometric characteristics, common necropsy and parasitology methods were used. In the present study, a total of 441 individuals of seven parasite species consisting of one nematode: Raphidascaroides sp...
September 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
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