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https://www.readbyqxmd.com/read/28628614/lamphimerus-a-novel-lamp-assay-for-detecting-amphimerus-sp-dna-in-human-stool-samples
#1
William Cevallos, Pedro Fernández-Soto, Manuel Calvopiña, Cristina Fontecha-Cuenca, Hiromu Sugiyama, Megumi Sato, Julio López Abán, Belén Vicente, Antonio Muro
BACKGROUND: Amphimeriasis is a fish-borne disease caused by the liver fluke Amphimerus spp. that has recently been reported as endemic in the tropical Pacific side of Ecuador with a high prevalence in humans and domestic animals. The diagnosis is based on the stool examination to identify parasite eggs, but it lacks sensitivity. Additionally, the morphology of the eggs may be confounded with other liver and intestinal flukes. No immunological or molecular methods have been developed to date...
June 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28623940/clonorchis-sinensis-lysophospholipase-a-upregulates-il-25-expression-in-macrophages-as-a-potential-pathway-to-liver-fibrosis
#2
Lina Zhou, Mengchen Shi, Lu Zhao, Zhipeng Lin, Zeli Tang, Hengchang Sun, Tingjin Chen, Zhiyue Lv, Jin Xu, Yan Huang, Xinbing Yu
BACKGROUND: Liver fibrosis is an excessive wound-healing reaction that requires the participation of inflammatory cells and hepatic stellate cells (HSCs). The pathogenesis of liver fibrosis caused by viruses and alcohol has been well characterized, but the molecular mechanisms underlying liver fibrosis induced by the liver fluke Clonorchis sinensis are poorly understood. Lysophospholipase A (LysoPLA), which deacylates lysophospholipids, plays a critical role in mediating the virulence and pathogenesis of parasites and fungi; however, the roles of C...
June 17, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28615853/genotoxic-potential-of-fasciolagigantica-infection-in-experimentally-infected-rabbits
#3
M A Hannan Khan, P A A Shareef, Abdur Rehman, Rizwan Ullah, Lubna Rehman, S M A Abidi
A number of parasitic platyhelminthes are known to cause genotoxicity in humans and animals. However no such information is available on tropical liver fluke, Fasciola gigantica, which incurs huge economic losses worldwide. In the present study the genotoxic potential of F. gigantica infection in rabbits, experimentally infected with the metacercarial cysts of this parasite, has been investigated using the standard comet assay and micronucleus (MNi) test on the isolated hepatocytes and the whole blood from the infected rabbits...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28609848/geochemical-landscapes-as-drivers-of-trace-and-toxic-element-profiles-in-wild-red-deer-cervus-elaphus
#4
Andrew S French, David Shaw, Stuart W Gibb, Mark A Taggart
Tissue concentrations of essential trace and toxic elements in red deer (Cervus elaphus) are associated with the plants, soil and water they ingest. As such, variation in tissue concentrations is associated with variation in local geochemistry and bioavailability of elements. Physiological factors such as liver fluke (Fasciola hepatica) infection, breeding status, and in-tissue element interactions may also affect tissue concentrations, though their effects in red deer are not well understood. The primary objective of this study was therefore to survey wild red deer liver element concentrations across a range of geographically distinct populations during the Scottish red deer stalking season; and, in so doing, establishes element reference ranges while also exploring geographic and temporal variation and physiological factors...
June 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28585078/associations-between-fasciolosis-and-milk-production-and-the-impact-of-anthelmintic-treatment-in-dairy-herds
#5
Kerstin Köstenberger, Alexander Tichy, Karl Bauer, Peter Pless, Thomas Wittek
Liver fluke is a ubiquitous parasite that causes extensive production losses in cattle and is a zoonosis. The aims of this study were to determine the prevalence of fasciolosis in 178 dairy cattle herds in Styria (federal state of Austria) and its influence on production, to detect the risk factors for infection, and to explore effective strategies in management and control. A questionnaire on farm management, prophylaxis, and therapy was developed and applied. Furthermore, production parameters (milk yield, milk protein content, butter fat content, non-return rate 90, calving to conception interval, service period) were recorded for 2014 and 2015, and a commercial ELISA for detection of Fasciola hepatica antibodies was applied in bulk tank milk in March 2014 and March 2015...
July 2017: Parasitology Research
https://www.readbyqxmd.com/read/28583212/lineage-specific-expansion-and-loss-of-tyrosinase-genes-across-platyhelminths-and-their-induction-profiles-in-the-carcinogenic-oriental-liver-fluke-clonorchis-sinensis
#6
Seon-Hee Kim, Young-An Bae
Tyrosinase provides an essential activity during egg production in diverse platyhelminths by mediating sclerotization of eggshells. In this study, we investigated the genomic and evolutionary features of tyrosinases in parasitic platyhelminths whose genomic information is available. A pair of paralogous tyrosinases was detected in most trematodes, whereas they were lost in cyclophyllidean cestodes. A pseudophyllidean cestode displaying egg biology similar to that of trematodes possessed an orthologous gene...
June 6, 2017: Parasitology
https://www.readbyqxmd.com/read/28552889/present-situation-of-opisthorchiasis-in-vientiane-capital-lao-peoples-democratic-republic
#7
Satoshi Nakamura
Opisthorchiasis is the commonest liver disease caused by Opisthorchis viverrini in Thailand, Lao People's Democratic Republic (PDR) and Cambodia, which will be a major cause of future human cholangiocarcinoma in these regions. In this short review, we describe the epidemic aspects of this parasite infection and the outline of results of our recent surveys of the fluke in humans and its intermediate hosts in Vientiane Capital, where information on the opisthorchiasis epidemic is insufficient. We examined the stool from a total of 296 persons living in the Phailom village (population, 1545, 1999) from 2011 to 2012...
2017: Nihon Eiseigaku Zasshi. Japanese Journal of Hygiene
https://www.readbyqxmd.com/read/28549264/effectiveness-of-family-group-conferencing-in-preventing-repeat-referrals-to-child-protective-services-and-out-of-home-placements
#8
Dana M Hollinshead, Tyler W Corwin, Erin J Maher, Lisa Merkel-Holguin, Heather Allan, John D Fluke
Rigorous research on the efficacy of family group conferencing is rare. This randomized control trial study used an intent-to-treat approach to examine whether a referral to a family group conference (FGC) was associated with re-referrals, substantiated re-referrals, or out-of-home placements among child welfare-involved families receiving in-home services. We found no significant associations between treatment and control group assignment and the three outcomes for the sample as a whole. However, families with more children had higher odds of a re-referral and a substantiated re-referral, families with more than one parent had higher odds of re-referral, and families where a substance abuse services referral was noted had higher odds of out-of-home placement...
May 23, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28537229/-genomics-and-transcriptomics-of-the-chinese-liver-fluke-clonorchis-sinensis-opisthorchiidae-trematoda
#9
G N Chelomina
The review summarizes the results of first genomic and transcriptomic investigations of the liver fluke Clonorchis sinensis (Opisthorchiidae, Trematoda). The studies mark the dawn of the genomic era for opisthorchiids, which cause severe hepatobiliary diseases in humans and animals. Their results aided in understanding the molecular mechanisms of adaptation to parasitism, parasite survival in mammalian biliary tracts, and genome dynamics in the individual development and the development of parasite-host relationships...
March 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28536265/structural-and-enzymatic-insights-into-species-specific-resistance-to-schistosome-parasite-drug-therapy
#10
Alexander B Taylor, Kenneth M Roberts, Xiaohang Cao, Nathaniel E Clark, Stephen P Holloway, Enrica Donati, Chiara M Polcaro, Livia Pica-Mattoccia, Reid S Tarpley, Stanton F McHardy, Donato Cioli, Philip T LoVerde, Paul F Fitzpatrick, P John Hart
The antischistosomal pro-drug oxamniquine is activated by a sulfotransferase (SULT) in the human parasite Schistosoma mansoni Of the three main human blood fluke species, only S. mansoni is sensitive to oxamniquine therapy despite the presence of SULT orthologs in S. haematobium and S. japonicum The reason for this species-specific drug action has remained a mystery for decades. Here we present the crystal structures of S. haematobium and S. japonicum SULTs, including S. haematobium SULT in complex with oxamniquine...
May 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28534030/combining-slaughterhouse-surveillance-data-with-cattle-tracing-scheme-and-environmental-data-to-quantify-environmental-risk-factors-for-liver-fluke-in-cattle
#11
Giles T Innocent, Lucy Gilbert, Edward O Jones, James E McLeod, George Gunn, Iain J McKendrick, Steve D Albon
Liver fluke infection causes serious disease (fasciolosis) in cattle and sheep in many regions of the world, resulting in production losses and additional economic consequences due to condemnation of the liver at slaughter. Liver fluke depends on mud snails as an intermediate host and infect livestock when ingested through grazing. Therefore, environmental factors play important roles in infection risk and climate change is likely to modify this. Here, we demonstrate how slaughterhouse data can be integrated with other data, including animal movement and climate variables to identify environmental risk factors for liver fluke in cattle in Scotland...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28528590/a-review-of-bovine-fasciolosis-and-other-trematode-infections-in-nigeria
#12
N Elelu, M C Eisler
Trematode infections cause serious economic losses to livestock worldwide. Global production losses due to fasciolosis alone exceed US$3 billion annually. Many trematode infections are also zoonotic and thus a public health concern. The World Health Organization has estimated that about 56 million people worldwide are infected by at least one zoonotic trematode species, and up to 750 million people are at risk of infection. Fasciolosis caused by the fluke Fasciola gigantica is endemic in Nigeria and is one of the most common causes of liver condemnation in abattoirs...
May 22, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28527633/anthelmintic-activity-of-cytochrome-p450-inhibitors-miconazole-and-clotrimazole-in-vitro-effect-on-the-liver-fluke-opisthorchis-felineus
#13
Viatcheslav A Mordvinov, Alexander G Shilov, Maria Y Pakharukova
Discovery of drugs for the treatment of opisthorchiasis and schistosomiasis is a high priority. The basic metabolic cytochrome P450 (CYP) system in parasitic flatworms contains a single gene. CYP of the liver fluke Opisthorchis felineus, the causative agent of opisthorchiasis, is important for survival of the worm, so it may be a promising target for therapeutics against liver fluke infection. The aims of this study were: (i) to analyse in-vitro anthelmintic activity of various CYP inhibitors using standard motility and mortality assays against juvenile and adult O...
May 17, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28508897/whole-genome-analysis-of-a-schistosomiasis-transmitting-freshwater-snail
#14
Coen M Adema, LaDeana W Hillier, Catherine S Jones, Eric S Loker, Matty Knight, Patrick Minx, Guilherme Oliveira, Nithya Raghavan, Andrew Shedlock, Laurence Rodrigues do Amaral, Halime D Arican-Goktas, Juliana G Assis, Elio Hideo Baba, Olga L Baron, Christopher J Bayne, Utibe Bickham-Wright, Kyle K Biggar, Michael Blouin, Bryony C Bonning, Chris Botka, Joanna M Bridger, Katherine M Buckley, Sarah K Buddenborg, Roberta Lima Caldeira, Julia Carleton, Omar S Carvalho, Maria G Castillo, Iain W Chalmers, Mikkel Christensens, Sandra Clifton, Celine Cosseau, Christine Coustau, Richard M Cripps, Yesid Cuesta-Astroz, Scott F Cummins, Leon di Stephano, Nathalie Dinguirard, David Duval, Scott Emrich, Cédric Feschotte, Rene Feyereisen, Peter FitzGerald, Catrina Fronick, Lucinda Fulton, Richard Galinier, Sandra G Gava, Michael Geusz, Kathrin K Geyer, Gloria I Giraldo-Calderón, Matheus de Souza Gomes, Michelle A Gordy, Benjamin Gourbal, Christoph Grunau, Patrick C Hanington, Karl F Hoffmann, Daniel Hughes, Judith Humphries, Daniel J Jackson, Liana K Jannotti-Passos, Wander de Jesus Jeremias, Susan Jobling, Bishoy Kamel, Aurélie Kapusta, Satwant Kaur, Joris M Koene, Andrea B Kohn, Dan Lawson, Scott P Lawton, Di Liang, Yanin Limpanont, Sijun Liu, Anne E Lockyer, TyAnna L Lovato, Fernanda Ludolf, Vince Magrini, Donald P McManus, Monica Medina, Milind Misra, Guillaume Mitta, Gerald M Mkoji, Michael J Montague, Cesar Montelongo, Leonid L Moroz, Monica C Munoz-Torres, Umar Niazi, Leslie R Noble, Francislon S Oliveira, Fabiano S Pais, Anthony T Papenfuss, Rob Peace, Janeth J Pena, Emmanuel A Pila, Titouan Quelais, Brian J Raney, Jonathan P Rast, David Rollinson, Izinara C Rosse, Bronwyn Rotgans, Edwin J Routledge, Kathryn M Ryan, Larissa L S Scholte, Kenneth B Storey, Martin Swain, Jacob A Tennessen, Chad Tomlinson, Damian L Trujillo, Emanuela V Volpi, Anthony J Walker, Tianfang Wang, Ittiprasert Wannaporn, Wesley C Warren, Xiao-Jun Wu, Timothy P Yoshino, Mohammed Yusuf, Si-Ming Zhang, Min Zhao, Richard K Wilson
Biomphalaria snails are instrumental in transmission of the human blood fluke Schistosoma mansoni. With the World Health Organization's goal to eliminate schistosomiasis as a global health problem by 2025, there is now renewed emphasis on snail control. Here, we characterize the genome of Biomphalaria glabrata, a lophotrochozoan protostome, and provide timely and important information on snail biology. We describe aspects of phero-perception, stress responses, immune function and regulation of gene expression that support the persistence of B...
May 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28508167/lessons-from-a-15-year-old-boy-with-advanced-schistosomiasis-japonica-in-china-a-case-report
#15
REVIEW
Langui Song, Xiaoying Wu, An Ning, Zhongdao Wu
Schistosomiasis is a chronic, parasitic disease caused by flukes (trematodes) of the genus Schistosoma, which presents the most important global burden of the 17 neglected tropical diseases listed by the World Health Organization. China has made great achievements in schistosomiasis control, and now China is planning to move forward, to eliminate schistosomiasis within 2020, but the fact cannot be denied that the possibility of schistosome infection is still there in some endemic due to its zoonotic nature as well as wide distribution of its intermediate hosts (snails)...
July 2017: Parasitology Research
https://www.readbyqxmd.com/read/28503557/epidemiology-and-risk-factors-intrahepatic-cholangiocarcinoma
#16
REVIEW
Amar Gupta, Elijah Dixon
Intrahepatic cholangiocarcinoma (ICC) is a rare entity with a distinct clinical course and epidemiology from hilar and extrahepatic cholangiocarcinoma. ICC makes up 8-10% of cholangiocarcinomas and 10-20% of all primary liver tumors. There remains a considerable amount of geographic variation in the incidence of ICC worldwide; however, the overall incidence of this malignancy appears to be rising. Several risk factors have been identified, such as infectious causes (liver flukes, viral hepatitis), biliary tract disease [primary sclerosing cholangitis (PSC), hepaticolithiasis, biliary cystic diseases], metabolic syndrome, lifestyle choices (alcohol abuse, tobacco use), and cirrhosis...
April 2017: Hepatobiliary Surgery and Nutrition
https://www.readbyqxmd.com/read/28496122/structural-insights-into-a-20-8-kda-tegumental-allergen-like-tal-protein-from-clonorchis-sinensis
#17
Chang Hwa Jo, Jonghyeon Son, Sulhee Kim, Takashi Oda, Jaehoon Kim, Myoung-Ro Lee, Mamoru Sato, Hyun Tae Kim, Satoru Unzai, Sam-Yong Park, Kwang Yeon Hwang
Survival of Clonorchis sinensis, a cause of human clonorchiasis, requires tegument proteins, which are localized to the tegumental outer surface membrane. These proteins play an important role in a host response and parasite survival. Thus, these proteins are interesting molecular targets for vaccine and drug development. Here, we have determined two crystal structures of the calmodulin like domain (amino acid [aa] positions 1-81) and dynein light chain (DLC)-like domain (aa 83-177) of a 20.8-kDa tegumental-allergen-like protein from Clonorchis sinensis (CsTAL3)...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28492181/coinfection-by-streptococcus-phocae-and-cetacean-morbillivirus-in-a-short-beaked-common-dolphin-delphinus-delphis
#18
J Díaz-Delgado, E Sierra, A I Vela, M Arbelo, D Zucca, K R Groch, A Fernández
We describe gross, histopathological, and immunohistochemical features of Streptococcus phocae and cetacean morbillivirus coinfection in a short-beaked common dolphin Delphinus delphis. Major gross findings were cutaneous purulent nodules in the tail fluke, vegetative mitral valve endocarditis, and presumed postpartum pyometra. Histologic examination revealed bacterial septicemia characterized by widespread intravascular coccoid bacterial emboli. These were associated with fibrinonecrotizing to pyogranulomatous dermatitis and panniculitis, embolic pneumonia, neutrophilic and lymphoplasmacytic meningochoroiditis, random neutrophilic hepatitis, lymphoplasmacytic myocarditis and epicarditis, necrotizing adrenalitis, suppurative endometritis, and multicentric reactive lymphadenopathy...
May 11, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28462034/virtual-reconstruction-of-the-endocranial-anatomy-of-the-early-jurassic-marine-crocodylomorph-pelagosaurus-typus-thalattosuchia
#19
Stephanie E Pierce, Megan Williams, Roger B J Benson
Thalattosuchians were highly specialised aquatic archosaurs of the Jurassic and Early Cretaceous, and represent a peak of aquatic adaptation among crocodylomorphs. Relatively little is known of their endocranial anatomy or its relevance for the evolution of sensory systems, physiology, and other aspects of biology. Nevertheless, such data have significance for two reasons: (1) thalattosuchians represent an important data point regarding adaptation to marine life in tetrapods; and (2) as early-diverging members of the crocodylian stem-lineage, thalattosuchians provide information on the evolutionary assembly of the brain and other endocranial structures in crocodylomorphs...
2017: PeerJ
https://www.readbyqxmd.com/read/28458272/high-prevalence-of-cattle-fascioliasis-in-coastal-areas-of-thua-thien-hue-province-vietnam
#20
Nga Thi Nguyen, Thinh Cong LE, Minh Duc Co Vo, Hoang Van Cao, Ly Thi Nguyen, Khanh Thi Ho, Quyet Ngoc Nguyen, Vui Quang Tran, Yasunobu Matsumoto
In Vietnam, especially central Vietnam, patients with fascioliasis are increasingly being reported. Since the fascioliasis is zoonotic, survey on the cattle fascioliasis should be informative for the control of human fascioliasis. In this study, the prevalence of cattle fascioliasis as well as the density of the intermediate host snails, Lymnaea swinhoei and L. viridis, were studied in Thua Thien Hue (TTH) province during 2014-2015. A total of 572 cattle feces were examined from 27 communes in 9 districts. Fasciola eggs were detected in cattle from 24 communes with an average prevalence of 23...
May 1, 2017: Journal of Veterinary Medical Science
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