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https://www.readbyqxmd.com/read/27906040/identity-of-fasciola-spp-in-sheep-in-egypt
#1
Said Amer, Ahmed ElKhatam, Shereif Zidan, Yaoyu Feng, Lihua Xiao
BACKGROUND: In Egypt, liver flukes, Fasciola spp. (Digenea: Fasciolidae), have a serious impact on the farming industry and public health. Both Fasciola hepatica and Fasciola gigantica are known to occur in cattle, providing the opportunity for genetic recombination. Little is known on the identity and genetic variability of Fasciola populations in sheep. METHODS: This study was performed to determine the prevalence of liver flukes in sheep in Menofia Province as a representative area of the delta region in Egypt, as measured by postmortem examination of slaughtered animals at three abattoirs...
December 1, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27903316/genetic-divergence-of-human-pathogens-nanophyetus-spp-trematoda-troglotrematidae-on-the-opposite-sides-of-the-pacific-rim
#2
A N Voronova, G N Chelomina, V V Besprozvannykh, V V Tkach
Human and animal nanophyetiasis is caused by intestinal flukes belonging to the genus Nanophyetus distributed on both North American and Eurasian coasts of Northern Pacific. In spite of the wide geographical distribution and medical and veterinary importance of these flukes, the intra-generic taxonomy of Nanophyetus spp. remains unresolved. The two most widely distributed nominal species, Nanophyetus salmincola and Nanophyetus schikhobalowi, both parasitizing humans and carnivorous mammals, were described from North America and eastern Eurasia, respectively...
December 1, 2016: Parasitology
https://www.readbyqxmd.com/read/27895270/dicrocoelium-dendriticum-an-unusual-parasitological-diagnosis-in-a-reference-international-health-unit
#3
Zaira Moure, Francesc Zarzuela, Mateu Espasa, Diana Pou, Nuria Serre-Delcor, Begoña Treviño, Cristina Bocanegra, Israel Molina, Tomas Pumarola, Elena Sulleiro
Finding Dicrocoelium dendriticum eggs in human feces is exceptional and there are few prevalence data available. True infection occurs after accidental ingestion of ants containing metacercariae and spurious infection through the consumption of infected animal liver. Differential diagnosis between true and pseudo-infections is performed through stool examination after a diet free of liver. In addition, microscopy can help to differentiate the type of infection. We report six cases, all from sub-Saharan Africa, detection of this fluke at the Tropical Medicine Unit Vall d'Hebron-Drassanes (Barcelona, Spain)...
November 28, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27893749/differential-protein-expression-in-the-hemolymph-of-bithynia-siamensis-goniomphalos-infected-with-opisthorchis-viverrini
#4
Kulwadee Suwannatrai, Apiporn Suwannatrai, Pairat Tabsripair, Jariya Umka Welbat, Sirikachorn Tangkawattana, Cinzia Cantacessi, Jason Mulvenna, Smarn Tesana, Alex Loukas, Javier Sotillo
Bithynia siamensis goniomphalos is a freshwater snail that serves as the first intermediate host of the human liver fluke Opisthorchis viverrini. This parasite is a major public health problem in different countries throughout the Greater Mekong sub-region (Thailand, southern Vietnam, Lao PDR and Cambodia). Chronic O. viverrini infection also results in a gradual increase of fibrotic tissues in the biliary tract that are associated with hepatobiliary diseases and contribute to cholangiocarcinoma (a fatal type of bile duct cancer)...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27890720/the-lawa-model-a-sustainable-integrated-opisthorchiasis-control-program-using-the-ecohealth-approach-in-the-lawa-lake-region-of-thailand
#5
Banchob Sripa, Sirikachorn Tangkawattana, Thinnakorn Sangnikul
Opisthorchiasis caused by the carcinogenic liver fluke Opisthorchis viverrini is a major foodborne parasitic zoonotic disease in Thailand and neighboring Mekong countries. The infection is associated with several hepatobiliary diseases including cholangiocarcinoma (CCA). The rates of CCA in regions where the parasite is endemic are unprecedented. Extensive research on various aspects of opisthorchiasis has been conducted in recent decades. However, the current status of O. viverrini infection in the country is approaching 85% prevalence in certain endemic areas even after more than 30years of control programs in Thailand...
November 24, 2016: Parasitology International
https://www.readbyqxmd.com/read/27890084/comparison-of-molecular-and-conventional-methods-for-the-diagnosis-of-fasciola-hepatica-infection-in-the-field
#6
Maria Immaculata Arifin, Johan Höglund, Adam Novobilský
The liver fluke, Fasciola hepatica, is one of the major parasite threats to livestock industries world-wide. In sheep and cattle, F. hepatica infection is commonly diagnosed using a range of methods. Aside from conventional coprological and serological diagnostic methods, there are also several molecular methods available based on the detection of liver fluke DNA in faeces. In this study, the outcomes of faecal egg count (FEC), serology and coproantigen ELISA (cELISA) were compared with the performance of polymerase chain reaction (PCR) and loop-mediated isothermal amplification (LAMP) in diagnosis of F...
December 15, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27890078/animal-fascioliasis-perspectives-from-high-altitudinal-regions
#7
Damanbha Lyngdoh, Sunil Sharma, Bishnupada Roy, Veena Tandon
The parasitic flukes of the genus Fasciola (Platyhelminthes: Trematoda: Digenea) cause fascioliasis or liver-rot disease in ruminant livestock in tropical and sub-tropical regions of the world. Classically, two species of Fasciola- F. hepatica and F. gigantica, are universally recognized as taxonomically valid species. Our survey studies on ovid and bovid animals including yak and mithun from high altitudinal mountainous regions in Northeast India revealed the occurrence of Fasciola gigantica and also Fasciola sp...
December 15, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27885125/immature-rumen-fluke-cause-deaths-of-ewes
#8
(no author information available yet)
Ewe deaths due to immature rumen flukeAmyloidosis in a Suffolk-cross lambHaemonchosis in Valais blacknose ewesDeaths and diarrhoea due to Salmonella Reading in 26-week-old giltsFeline dysautonomia in a kittenThese are among matters discussed in the disease surveillance report for August 2016 from SAC Consulting: Veterinary Services (SAC C VS).
November 26, 2016: Veterinary Record
https://www.readbyqxmd.com/read/27884436/distribution-of-foxp3-t-cells-in-the-liver-and-hepatic-lymph-nodes-of-goats-and-sheep-experimentally-infected-with-fasciola-hepatica
#9
A Escamilla, R Zafra, J Pérez, T N McNeilly, I L Pacheco, L Buffoni, F J Martínez-Moreno, V Molina-Hernández, A Martínez-Moreno
Foxp3 regulatory T cells (Tregs) are now considered to play a key role in modulation of immune responses during parasitic helminth infections. Immunomodulation is a key factor in Fasciola hepatica infection; however, the distribution and role of Foxp3(+) Tregs cells have not been investigated in F. hepatica infected ruminants. The aim of this study was to evaluate the presence of Foxp3(+) Tregs in the liver and hepatic lymph nodes from experimentally infected sheep and goats during acute and chronic stages of infection...
October 30, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27884378/purinergic-signaling-in-schistosomal-infection
#10
REVIEW
Claudia Lucia Martins Silva
Human schistosomiasis is a chronic inflammatory disease caused by blood fluke worms belonging to the genus Schistosoma. Health metrics indicate that the disease is related to an elevated number of years lost-to-disability and years lost-to-life. Schistosomiasis is an intravascular disease that is related to a Th1 and Th2 immune response polarization, and the degree of polarization affects the outcome of the disease. The purinergic system is composed of adenosine and nucleotides acting as key messenger molecules...
October 2016: Biomedical Journal
https://www.readbyqxmd.com/read/27882434/new-locality-record-for-haplorchoides-mehrai-and-possible-interactions-with-opisthorchis-viverrini-metacercariae-in-cyprinid-fishes-in-northeast-thailand
#11
Yupin Manpratum, Wanlop Kaewkes, Pierre Echaubard, Banchob Sripa, Sasithorn Kaewkes
Metacercariae of Opisthorchis viverrini, a carcinogenic liver fluke, and Haplorchoides sp., a trematode maturing in catfish, are commonly found in cyprinid fish, the second intermediate hosts of both flukes. However, the specific identity of Haplorchoides sp. in Thailand and a precise assessment of the effects of co-infections with O. viverrini have never been clarified. Therefore, we aimed to identify the species of Haplorchoides and to investigate possible interactions of the two trematode species in cyprinid fishes...
November 23, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27876981/detection-of-fasciola-hepatica-and-fasciola-gigantica-common-and-uncommon-antigens-using-rabbit-hyper-immune-serum-raised-against-their-excretory-secretory-and-somatic-antigens
#12
S Abdolahi Khabisi, B Sarkari
Fasciolosis is an important neglected helminth disease caused by two liver flukes, Fasciola hepatica and Fasciola gigantica. The two species of Fasciola are usually different in their morphological and molecular features. They have also common and uncommon antigens in both their somatic and excretory secretory metabolites. In this study, we compared somatic and excretory-secretory (ES) antigens of F. hepatica and F. gigantica, by using rabbit hyper immune serum raised against these antigens. Adult worms were collected from bile ducts of infected animals and species of the fluke was confirmed by RFLP-PCR...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27861520/a-genome-wide-comparison-to-identify-markers-to-differentiate-the-sex-of-larval-stages-of-schistosoma-haematobium-schistosoma-bovis-and-their-respective-hybrids
#13
Julien Kincaid-Smith, Jérôme Boissier, Jean-François Allienne, Ana Oleaga, Félicité Djuikwo-Teukeng, Eve Toulza
For scientists working on gonochoric organisms, determining sex can be crucial for many biological questions and experimental studies, such as crossbreeding, but it can also be a challenging task, particularly when no sexual dimorphism is visible or cannot be directly observed. In metazoan parasites of the genus Schistosoma responsible for schistosomiasis, sex is genetically determined in the zygote with a female heterogametic ZW/ZZ system. Adult flukes have a pronounced sexual dimorphism, whereas the sexes of the larval stages are morphologically indistinguishable but can be distinguished uniquely by using molecular methods...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27859808/diet-assessment-of-the-atlantic-sea-nettle-chrysaora-quinquecirrha-in-barnegat-bay-new-jersey-using-next-generation-sequencing
#14
Robert W Meredith, John J Gaynor, Paul A X Bologna
Next generation sequencing (NGS) methodologies have proven useful in deciphering the food items of generalist predators, but have yet to be applied to gelatinous animal gut and tentacle content. NGS can potentially supplement traditional methods of visual identification. Chrysaora quinquecirrha (Atlantic sea nettle) has progressively become more abundant in Mid-Atlantic United States' estuaries including Barnegat Bay (New Jersey), potentially having detrimental effects on both marine organisms and human enterprises...
November 17, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27853124/a-case-of-chaunocephalosis-by-chaunocephalus-ferox-digenea-echinostomatidae-in-an-oriental-white-stork-ciconia-boyciana-in-korea
#15
Seongjun Choe, Dongmin Lee, Hansol Park, Hyeong-Kyu Jeon, Youngsun Lee, Ki-Jeong Na, Shi-Ryong Park, Keeseon S Eom
We intended to describe a case of chaunocephalosis and morphological characteristics of its causative agent, Chaunocephalus ferox, recovered from an oriental white stork, Ciconia boyciana, in the Republic of Korea. An oriental white stork was referred to the Wildlife Center of Chungbuk in Korea in February 2014 for severe depression with cachexia and it died the next day. At necropsy, the stomach was severely expanded and 7 thick-walled nodules were observed in the upper part of the intestine. Although the stomach was filled with full of foreign materials, the intestine was almost empty...
October 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/27853115/prehistoric-pathoecology-as-represented-by-parasites-of-a-mummy-from-the-perua%C3%A3-u-valley-brazil
#16
REVIEW
Karl J Reinhard, Adauto Araújo
Paleopathologists have begun exploring the pathoecology of parasitic diseases in relation to diet and environment. We are summarizing the parasitological findings from a mummy in the site of Lapa do Boquete, a Brazilian cave in the state of Minas Gerais. These findings in context of the archaeology of the site provided insights into the pathoecology of disease transmission in cave and rockshelter environments. We are presenting a description of the site followed by the evidence of hookworm, intestinal fluke, and Trypanosoma infection with resulting Chagas disease in the mummy discovered in the cave...
October 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/27853113/ancient-human-parasites-in-ethnic-chinese-populations
#17
REVIEW
Hui-Yuan Yeh, Piers D Mitchell
Whilst archaeological evidence for many aspects of life in ancient China is well studied, there has been much less interest in ancient infectious diseases, such as intestinal parasites in past Chinese populations. Here, we bring together evidence from mummies, ancient latrines, and pelvic soil from burials, dating from the Neolithic Period to the Qing Dynasty, in order to better understand the health of the past inhabitants of China and the diseases endemic in the region. Seven species of intestinal parasite have been identified, namely roundworm, whipworm, Chinese liver fluke, oriental schistosome, pinworm, Taenia sp...
October 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/27847213/in-vitro-study-of-trematodicidal-action-of-dicranopteris-linearis-burm-f-underw-extracts-against-gastrothylax-crumenifer
#18
Kalpana Devi Rajesh, Vasantha Subramani, Panneerselvam Annamalai, Rajesh Nakulan V, Jeyathilakan Narayanaperumal, Jeeva Solomon
The anthelmintic activity of column fractioned Dicranopteris linearis (Burm.f.) Underw. extracts was used for in vitro incubation study against adult Gastrothylax crumenifer. The qualitative analysis showed ethanol extract performed well to express 12 secondary metabolites studied except anthocyanin. Quantitative phytochemical analysis of terpenoids, phenols, flavonoids and tannins showed predominant amount of terpenoids (97.0±1.15)mg/g and tannins (30.8±0.44)mg tannic acid equivalents/gram. GC-MS analysis of fraction separated under column (Fraction V-79...
November 12, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27836038/six-year-longitudinal-study-of-fasciola-hepatica-bulk-milk-antibody-elisa-in-the-dairy-dense-region-of-the-republic-ireland
#19
M P Munita, R Rea, Y Bloemhoff, N Byrne, A M Martinez-Ibeas, R G Sayers
Completion of the F. hepatica lifecycle is dependent on suitable climatic conditions for development of immature stages of the parasite, and its snail intermediate host. Few investigations have been conducted regarding temporal variations in F. hepatica status in Irish dairy herds. The current study aimed to conduct a longitudinal study examining annual and seasonal trends in bulk milk seropositivity over six years, while also investigating associations with soil temperature, rainfall and flukicide treatment...
November 1, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/27835838/developmental-stages-of-fish-blood-flukes-cardicola-forsteri-and-cardicola-opisthorchis-trematoda-aporocotylidae-in-their-polychaete-intermediate-hosts-collected-at-pacific-bluefin-tuna-culture-sites-in-japan
#20
Kazuo Ogawa, Sho Shirakashi, Kazuki Tani, Sang Phil Shin, Katsuya Ishimaru, Tomoki Honryo, Yukitaka Sugihara, Hiro'omi Uchida
Farming of Pacific bluefin tuna (PBT), Thunnus orientalis, is a rapidly growing industry in Japan. Aporocotylid blood flukes of the genus Cardicola comprising C. orientalis, C. opisthorchis and C. forsteri are parasites of economic importance for PBT farming. Recently, terebellid polychaetes have been identified as the intermediate hosts for all these parasites. We collected infected polychaetes, Terebella sp., the intermediate host of C. opisthorchis, from ropes and floats attached to tuna cages in Tsushima, Nagasaki Prefecture, Japan...
November 8, 2016: Parasitology International
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