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The synthetic peroxide OZ78 is effective against Echinostoma caproni and Fasciola hepatica.

OBJECTIVES: The trematocidal properties of a synthetic peroxide, 1,2,4-trioxolane (OZ78) were determined both in vivo and in vitro. METHODS … sound platform for identification of a synthetic peroxide drug development candidate against major trematode infections.

Altered Protein Expression in the Ileum of Mice Associated with the Development of Chronic Infections with Echinostoma caproni (Trematoda).

BACKGROUND: Echinostoma caproni (Trematoda: Echinostomatidae) is an intestinal trematode that has been extensively used as experimental model to investigate the factors determining the expulsion of intestinal helminths or, in contrast, the development of chronic infections. Herein, we analyze the changes in protein expression induced by E. caproni infection in ICR mice, a host of high compatibility in which the parasites develop chronic infections. METHODOLOGY/PRINCIPAL FINDINGS: To determine the changes in protein expression, a two-dimensional DIGE approach using protein extracts from the in

Parasitic infections in the East Asian finless porpoise Neophocaena asiaeorientalis sunameri living off the Chinese Yellow/Bohai Sea coast.

Parasitic disease is among the major causes of health problems in marine mammals. However, little information on parasitic species composition and infection levels in finless porpoises (Neophocaena spp.) is available. In this study, we report the first systematic survey on parasitic infections in the East Asian finless porpoise N. asiaeorientalis sunameri (EAFP) living off the Chinese Yellow/Bohai Sea coast. Using both morphological and molecular methods, 5 parasitic helminths were identified: Campula oblonga in the liver and pancreas; Synthesium seymouri in the pyloric stomach and duodenum am

Parasite fauna of Antarctic Macrourus whitsoni (Gadiformes: Macrouridae) in comparison with closely related macrourids.

BACKGROUND: The extreme, isolated environment within the Antarctic Convergence has fuelled the evolution of a highly endemic fauna with unique adaptations. One species known from this area is the Whitson's grenadier Macrourus whitsoni (Regan, 1913). While closely related species occurring in the Northern Hemisphere were targets of a variety of studies, knowledge on M. whitsoni is scarce, including not only its ecology but also its parasite fauna. Parasites, an often overlooked but important component of every ecosystem, can provide important insights into host ecology, including feeding habits

Nanophyetus salmincola, vector of the salmon poisoning disease agent Neorickettsia helminthoeca, harbors a second pathogenic Neorickettsia species.

The trematode Nanophyetus salmincola is known as the carrier of Neorickettsia helminthoeca, an obligate intracellular endosymbiotic bacterium that causes salmon poisoning disease (SPD), a fatal disease of dogs. The bacteria are maintained through the complex life cycle of N. salmincola that involves snails Juga plicifera as the first intermediate host, salmonid fishes as the second intermediate host and fish-eating mammals as definitive hosts. N. salmincola was also found to harbor a second species of Neorickettsia that causes the Elokomin fluke fever disease (EFF) which has clinical signs sim

Parasite communities and infection levels of the invasive Chinese sleeper Perccottus glenii (Actinopterygii: Odontobutidae) from the Naab river basin, Germany.

The Chinese sleeper (Perccottus glenii), an invasive Asian fish, was first registered in Germany in 2009 (westernmost extent of its invasive range). We sampled Chinese sleepers from two localities on the Bücherlgraben creek (a tributary of the River Naab) in south-eastern Germany in November 2015 and examined them for parasite infection. Twelve taxa were registered, including ciliates (unidentified Trichodina), a monogenean, three cestode species, two digenean taxa, two acanthocephalan species, two nematode species and one mollusc glochidia. Infracommunities consisted of 1-5 species, with 10%

Fasciola hepatica in the Differential Diagnosis of a Patient with Obstructive Jaundice and Eosinophilia.

Fasciola hepatica is a trematode that is visible to the naked eye. The diagnosis can be made by serology or by clinical improvement and decrease of eosinophilia after triclabendazole treatment or by finding parasite eggs in the stool. Sometimes the diagnosis is possible during unnecessary surgery, laparoscopic cholecystectomy, and endoscopic retrograde cholangiopancreatography (ERCP). F. hepatica infection should be considered in patients with typical clinical findings; the elevation of liver enzymes indicating cholestasis, eosinophilia, and characteristic computed tomography (CT) or ultrasono

Schistosomiasis: a case study.

Schistosomiasis is a parasitic infection caused by trematodes (flatworms). It is second only to malaria in public health significance, with an estimated 200 million people infected worldwide. Schistosoma haematobium is endemic in Africa and the Middle East. This case study discusses a 36-year-old Somalian male who immigrated to a Northeastern city in the United States from a refugee camp in Kenya. He presented with episodic gross hematuria and flank pain, and was eventually diagnosed with urinary tract schistosomiasis, which was successfully treated with praziquantel. While the disease is not

First molecular insights into gastrointestinal helminths of domestic birds in the Caspian Sea Littoral of Iran with an emphasis on the One Health concern.

The current investigation was carried out during the period from July 2022 to March 2023, aiming to investigate the prevalence of gastrointestinal helminths in domestic birds collected from traditional markets in Guilan province. One hundred forty-eight domestic birds, including chickens (Gallus gallus domesticus), domestic ducks (Anas platyrhynchos domesticus), greylag geese (Anser anser), and domestic turkeys (Meleagris gallopavo domesticus) were examined. Totally, 42.56% of the investigated birds were positive for helminthic parasites. Morphological analysis revealed varying infection rates

A comparative study of helminth parasites from the fish Tilapia zillii and Oreochromis leucostictus in Lake Naivasha and Oloidien Bay, Kenya.

The parasitic fauna of two fish species, namely gill-netted samples of 652 Oreochromis leucostictus and 448 Tilapia zillii from Lake Naivasha and Oloidien Bay was investigated during the period from the end of October 1995 to September 1996. Five larval helminth parasites were recovered including the nematode, Contracaecum sp., the acanthocephalan Polyacanthorhynchus kenyensis, the digenetic trematode, Clinostomum sp. and two cestodes, Amirthalingamia sp. and Cyclustera sp. Both prevalence and intensity of the infection of these helminths increased in larger sized fish, whereas male fish were

Mortality in Syrian hamsters infected with Paragonimus kellicotti.

In an attempt to find a small animal model for paragonimiasis, Syrian hamsters were infected with between 1 and 16 metacercariae of Paragoni … represent a new small animal mortality model useful in the search for new compounds to treat early trematode infections.

Production of monoclonal antibodies against partially purified surface tegument antigens of Fasciola gigantica.

Monoclonal antibodies (MAbs) were produced by the in vitro fusion of Balb/C mice spleen cells immunized with partially purified surface tegument antigens of Fasciola gigantica. The surface membrane and tegument antigens were purified by using gel filtration chromatography. SDS-PAGE performed on the processed proteins demonstrated that the proteins had molecular weights of 20 to 97 kDa. In this study, fifteen monoclonal antibody clones were selected from the hybridoma clones, namely: 1B7, 1B11, 1B12, 1C9, 1D4, 1G2, 1H7, 2B6, 2C3, 2C9, 2D11, 2F11, 2G2, 2G5, and 2G11. They were evaluated by immun

The discovery of Paratestophis gelicolus gen. nov., sp. nov. from the rainbow water snake, Enhydris enhydris, in Thailand, with systematic update of Echinochasmidae Odhner, 1910.

A new genus and species of trematode, Paratestophis gelicolus gen. nov., sp. nov., is described from the large intestine of the rainbow water snake, Enhydris enhydris, collected from several provinces in southern Thailand. Morphological analyses reveal distinct characteristics that differentiate P. gelicolus gen. nov., sp. nov. from related echinochasmid taxa, specifically its elongated bottle-shaped body, presence of 22 collar spines, parallel testes and parasitism of snakes-features not observed in other echinochasmid genera. Multi-marker phylogenetic analyses (28S rRNA, 18S rRNA, ITS2 and C

Natural variation in the binding pocket of a parasitic flatworm TRPM channel resolves the basis for praziquantel sensitivity.

The drug praziquantel (PZQ) is the key clinical therapy for treating schistosomiasis and other infections caused by parasitic flatworms. A schistosome target for PZQ was recently identified- a transient receptor potential ion channel in the melastatin subfamily (TRPMPZQ)-however, little is known about the properties of TRPMPZQ in other parasitic flatworms. Here, TRPMPZQ orthologs were scrutinized from all currently available parasitic flatworm genomes. TRPMPZQ is present in all parasitic flatworms, and the consensus PZQ binding site was well conserved. Functional profiling of trematode, cestod

A cascade of biological invasions and parasite spillback in man-made Lake Kariba.

Parasite spillback, the infection of a non-indigenous organism by a native parasite, is a highly important although understudied component of ecological invasion dynamics. Here, through the first analysis of the parasite fauna of lymnaeid gastropods of Lake Kariba (Zimbabwe). We illustrate how the creation of an artificial lake may lead to a cascade of biological invasions in which an invasive aquatic plant promotes the proliferation of invasive gastropods, which in turn alters the epidemiology of trematodiases of potential medical and veterinary importance. Using a new multiplex Rapid Diagnos

Gastrointestinal parasites of working donkeys of Ethiopia.

The general prevalence and population composition of gastrointestinal and pulmonary helminths of working donkeys were studied. For the purpose 2935 working donkeys were coprologically examined for nematode and cestode, and 215 donkeys for trematode infections. Seven donkeys that died due to various health problems or were euthanased on a welfare ground were necropsied and the parasites were recovered and identified to the species level. The study was conducted during the periods 1996-1999.Coprological examination revealed 99% strongyle, 80% Fasciola, 51% Parascaris, 30% Gastrodiscus, 11% Stron…

Ovine dicrocoeliosis in Castellón province, eastern Spain: Prevalence, dynamics, and comparative study of different diagnostic techniques.

Dicrocoeliosis is a parasitic disease that mainly affects ruminants during grazing, caused by trematodes of the genus Dicrocoelium, with D. dendriticum being the most common species worldwide. This parasitosis is a chronic and generally subclinical process, with nonspecific signs, which makes its diagnosis challenging. This study aimed to determine the prevalence and seasonal dynamics of D. dendriticum infection in adult sheep from the Valencian Community, eastern Spain, as well as to evaluate the efficacy of flotation and sedimentation techniques when compared with the macroscopic exam of the

Helminthes detected from wild sika deer (Cervus nippon centralis) in Kanto-Chubu region, Japan.

The helminth fauna of 105 sika deer (Cervus nippon centralis) captured in Yamanashi, Kanagawa and Nagano Prefectures, Japan was investigated during 2014-2019. As a result, 12 helminthes, i.e. 3 digeneans (Ogmocotyle sikae, Dicrocoelium chinensis and D. dendriticum), 8 nematodes (Gongylonema pulchrum, Dictyocaulus sp., Pygarginema sp., Spiculopteragia houdemeri, Chabaudstrongylus ninhae, Trichuris discolor, Oesophagostomum sikae and Oes. asperum), and 1 cestode (Moniezia sp.) were detected. To our knowledge, this is the first report of Pygarginema sp., Cha. ninhae, and Oes. asperum from sika de

Активизация глобальной борьбы с забытыми тропическими заболеваниями путем принятия мер в Азиатско-Тихоокеанском регионе.

По мере расширения местных, национальных и международных усилий по контролю и искоренению забытых тропических заболеваний (НТР) растет признание того, что 11 стран Юго-Восточной Азии вместе с Китайской Народной Республикой (П.Р. Китай) является причиной значительного бремени глобальной нищеты и болезней. В самом деле, примерно одна треть кишечных рулетов в мире, бóльшая часть передаваемых с пищей триматодных инфекций, половина активных трахомных инфекций и значительное число случаев лимфатического филариатиса (ЛФ), шистосомоза и арбовирусных инфекций происходят в этом регионе. В странах Меконг

Совпадение в аннотации оригинала
As local, national and international control and elimination efforts for the neglected tropical diseases (NTDs) expand, there is increasing … se. Indeed, approximately one-third of the world's intestinal helminthiases, most of the food-borne trematode infections, one-half of the active trachoma infections and a significant number of cases of lymphatic filariasis (LF), schistosomiasis and arboviral infections occur in this region. Among the Mekong countries, active programmes of mass drug administration are …

Human fascioliasis: a case of hyperinfection and an update for clinicians.

Fascioliasis is a foodborne trematode infection that affects patients worldwide causing both liver inflammation and biliary obstruction. In developed countries, the disease is rare but a number of focal outbreaks have been reported. Here, we report a case of human fascioliasis in which acute and chronic manifestations coexisted and discuss the newest evidence regarding pathogenesis, diagnostic approach, and treatment, with emphasis on strategies to control the incidence of this emergent disease.