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https://www.readbyqxmd.com/read/28533109/lipopolysaccharide-induced-acute-lung-injury-in-mice-chronically-infected-by-schistosoma-mansoni
#1
Amanda Esteves Rocha Pereira, Maria Ângela Rodrigues, Rômulo Dias Novaes, Ivo Santana Caldas, Raquel Lopes Martins Souza, Alessandro Antônio Costa Pereira
We used a murine model of Schistosoma mansoni (SM) infection and lipopolysaccharide (LPS)-induced endotoxicity to investigate if these conditions can interact to modify the pathological manifestations typically observed in each condition. Swiss mice were randomized into four groups: SAL, uninfected; SM, infected; LPS, uninfected + LPS; and SM + LPS, infected + LPS. S. mansoni infection developed over 120 days, after which blood samples and lungs were collected, peritoneal leukocytes were isolated and cultivated for 6 and 24 h after LPS inoculation (1 mL/kg)...
May 19, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28528590/a-review-of-bovine-fasciolosis-and-other-trematode-infections-in-nigeria
#2
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
#3
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 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/28526730/a-targeted-capture-linkage-map-anchors-the-genome-of-the-schistosomiasis-vector-snail-biomphalaria-glabrata
#4
Jacob A Tennessen, Stephanie R Bollmann, Michael S Blouin
The aquatic planorbid snail Biomphalaria glabrate is one of the most intensively-studied mollusks due to its role in the transmission of schistosomiasis. Its 916 Mb genome has recently been sequenced and annotated, but it remains poorly assembled. Here we used targeted capture markers to map over 10,000 B. glabrate scaffolds in a linkage cross of 94 F1 offspring, generating 24 linkage groups. We added additional scaffolds to these linkage groups based on linkage disequilibrium analysis of targeted capture and whole-genome sequences of 96 unrelated snails...
May 19, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28511056/elimination-of-schistosoma-mansoni-in-infected-mice-by-slow-release-of-artemisone
#5
Daniel Gold, Mohammed Alian, Avraham Domb, Yara Karawani, Maysa Jbarien, Jacques Chollet, Richard K Haynes, Ho Ning Wong, Viola Buchholz, Andreas Greiner, Jacob Golenser
The current treatment of schistosomiasis is based on the anti-helminthic drug praziquantel (PZQ). PZQ affects only the adult stages of schistosomes. In addition, resistance to PZQ is emerging. We suggest a drug, which could serve as a potential alternative or complement to PZQ, and as a means of treating infections at earlier, pre-granuloma stage. Derivatives of the peroxidic antimalarial drug artemisinin have been indicated as alternatives, because both plasmodia and schistosomes are blood-feeding parasites...
May 4, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28510608/the-biomphalaria-glabrata-dna-methylation-machinery-displays-spatial-tissue-expression-is-differentially-active-in-distinct-snail-populations-and-is-modulated-by-interactions-with-schistosoma-mansoni
#6
Kathrin K Geyer, Umar H Niazi, David Duval, Céline Cosseau, Chad Tomlinson, Iain W Chalmers, Martin T Swain, David J Cutress, Utibe Bickham-Wright, Sabrina E Munshi, Christoph Grunau, Timothy P Yoshino, Karl F Hoffmann
BACKGROUND: The debilitating human disease schistosomiasis is caused by infection with schistosome parasites that maintain a complex lifecycle alternating between definitive (human) and intermediate (snail) hosts. While much is known about how the definitive host responds to schistosome infection, there is comparably less information available describing the snail's response to infection. METHODOLOGY/PRINCIPLE FINDINGS: Here, using information recently revealed by sequencing of the Biomphalaria glabrata intermediate host genome, we provide evidence that the predicted core snail DNA methylation machinery components are associated with both intra-species reproduction processes and inter-species interactions...
May 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28508897/whole-genome-analysis-of-a-schistosomiasis-transmitting-freshwater-snail
#7
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
#8
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)...
May 16, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28507621/expression-of-fgfr3-protein-and-gene-amplification-in-urinary-bladder-lesions-in-relation-to-schistosomiasis
#9
Olfat Hammam, Tarek Aboushousha, Ali El-Hindawi, Hosni Khairy, Heba Khalil, Amira Kamel, Maha Akl, Ahmed Abdel-Hady, Mona Magdy, Mohamed Badawy, Amr El Kholy, Khalid Al Osili, Nora Kamel, Shady Anis, Tarek El Leithy
BACKGROUND: Bladder cancer represents the fifth most common malignancy worldwide and a major cause of cancer-related morbidity and death. Incidence and mortality rates have remained relatively constant over the past four decades. Urothelial bladder cancers have identified multiple risk factors. AIM: We aimed at evaluating the expression of the FGFR3 protein and gene amplification in the urothelial cells of neoplastic and non-neoplastic urothelial lesions of the urinary bladder, and correlation with tumour grade, stage and associated bilharziasis...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28506039/plasma-d-dimer-can-effectively-predict-the-prospective-occurrence-of-ascites-in-advanced-schistosomiasis-japonica-patients
#10
Xiaoying Wu, Jianwei Ren, Zulu Gao, Yun Xu, Huiqun Xie, Tingfang Li, Yanhua Cheng, Fei Hu, Hongyun Liu, Zhihong Gong, Jinyi Liang, Jia Shen, Zhen Liu, Feng Wu, Xi Sun, Zhongzheng Niu, An Ning
China still has more than 30,000 patients of advanced schistosomiasis while new cases being reported consistently. D-dimer is a fibrin degradation product. As ascites being the dominating symptom in advanced schistosomiasis, the present study aimed to explore a prediction model of ascites with D-dimer and other clinical easy-achievable indicators. A case-control study nested in a prospective cohort was conducted in schistosomiasis-endemic area of southern China. A total of 291 patients of advanced schistosomiasis were first investigated in 2013 and further followed in 2014...
April 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28504194/vaccination-with-recombinant-paramyosin-in-montanide-isa206-protects-against-schistosoma-japonicum-infection-in-water-buffalo
#11
Hannah Wei Wu, Zhi-Qiang Fu, Ke Lu, Sunthorn Pond-Tor, Rui Meng, Yang Hong, Kai Chu, Hao Li, Mario Jiz, Jin-Ming Liu, Ming Hou, Sangshin Park, Jiao-Jiao Lin, Jonathan D Kurtis
BACKGROUND: Schistosomiasis japonica is a zoonosis and presents significant public health problems in China and the Philippines. Vaccines targeting domestic animals constitute attractive control measures. METHODS: We conducted three vaccine trials to evaluate the protective efficacy of recombinant full-length paramyosin (rSj97) in water buffalo. Animals were immunized with 3 doses of rSj97 adjuvanted with ISA206 at 250μg/dose or 500μg/dose at 4wk intervals before challenge with 1000 Schistosoma japonicum cercariae...
May 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28500821/serum-carbonic-anhydrase-1-is-a-biomarker-for-diagnosis-of-human-schistosoma-mansoni-infection
#12
Manal Ibrahim Kardoush, Brian J Ward, Momar Ndao
AbstractSchistosoma mansoni is a major public health threat in many parts of the world. The current diagnostic tests for schistosomiasis are suboptimal, particularly early in infection, when the parasite burden is low and with reinfection after treatment. We sought to identify novel biomarkers of active infection by studying serum proteins in a mouse model of schistosomiasis followed by confirmation in chronically infected patients. Acute (6 weeks) and chronic (12 weeks) sera from S. mansoni-infected C57Bl/6 mice as well as sera from chronically infected patients were assessed using two proteomic platforms: surface-enhanced, laser desorption and ionization, time-of-flight mass spectrometry and Velos Orbitrap mass spectrometry...
April 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28495384/medicinal-chemistry-of-antischistosomal-drugs-praziquantel-and-oxamniquine
#13
REVIEW
Vinícius Barros Ribeiro da Silva, Bruna Rafaella Koresch Leiva Campos, Jamerson Ferreira de Oliveira, Jean-Luc Decout, Maria do Carmo Alves de Lima
Neglected tropical diseases (NTDs) are a group of diseases that, besides prevailing in poverty conditions, contribute to the maintenance of social inequality, being a strong barrier to a country development. Schistosomiasis, a NTD, is a tropical and subtropical disease caused by the trematode Schistosoma mansoni (Africa, Middle East, Caribbean, Brazil, Venezuela, Suriname), japonicum (China, Indonesia, the Philippines), mekongi (several districts of Cambodia and the Lao People's Democratic Republic), intercalatum and guianensis (areas of tropical rainforests in Central Africa) and hematobium (Middle East Africa, Corsica, France) whose adult forms inhabit the mesenteric vessels of the host, while the intermediate forms are found in the aquatic gastropod snails of the genus Biomphalaria...
April 27, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28489845/caput-medusae-due-to-portal-hypertension-in-schistosomiasis-mansoni
#14
Vitorino Modesto Dos Santos
A 62-year-old Brazilian man who lived in endemic areas of tropical diseases had an episode of hematemesis associated with portal hypertension. He used to swim in natural ponds during childhood and developed the hepatosplenic form of schistossomiasis with moderate ascites, in addition to the characteristic features of abdominal Caput Medusae. The aim of the report is highlight the role of chronic liver disease and schistossomiasis.
January 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28487179/establishment-of-first-engineering-specifications-for-environmental-modification-to-eliminate-schistosomiasis-epidemic-foci-in-urban-areas
#15
Shibo Kong, Xiaodong Tan, Zhiqing Deng, Yaofei Xie, Fen Yang, Zengwang Zheng
Snail control is a key link in schistosomiasis control, but no unified methods for eliminating snails have been produced to date. This study was conducted to explore an engineering method for eliminating Oncomelania hupensis applicable to urban areas. The engineering specifications were established using the Delphi method. An engineering project based on these specifications was conducted in Hankou marshland to eliminate snails, including the transformation of the beach surface and ditches. Molluscicide was used as a supplement...
May 6, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28481502/efficient-inhibition-of-smnace-by-coordination-complexes-is-abolished-by-s-mansoni-sequestration-of-metal
#16
Hélène Muller-Steffner, Sylvain A Jacques, Isabelle Kuhn, Michael D Schultz, Davide Botta, Paul Osswald, Clarisse Maechling, Frances E Lund, Esther Kellenberger
SmNACE is a NAD catabolizing enzyme expressed on the outer tegument of S. mansoni, a human parasite that is one of the major agents of the neglected tropical disease Schistosomiasis. Recently, we identified aroylhydrazone derivatives capable of inhibiting the recombinant form of the enzyme with variable potency (IC50 ranging from 88 μM to 33 nM). In the present study, we investigated the mechanism of action of the least potent micromolar inhibitor (compound 1) and the most potent nanomolar inhibitor (compound 2) in the series on both the recombinant and native SmNACE enzymes...
May 8, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28468667/dynamics-of-freshwater-snails-and-schistosoma-infection-prevalence-in-schoolchildren-during-the-construction-and-operation-of-a-multipurpose-dam-in-central-c%C3%A3-te-d-ivoire
#17
Nana R Diakité, Mirko S Winkler, Jean T Coulibaly, Négnorogo Guindo-Coulibaly, Jürg Utzinger, Eliézer K N'Goran
BACKGROUND: The construction and operation of small multipurpose dams in Africa have a history of altering the transmission of water-based diseases, including schistosomiasis. The current study was designed to investigate the abundance and dynamics of schistosomiasis intermediate host snails and Schistosoma infections in humans during the construction and the first years of operation of a small multipurpose dam in Côte d'Ivoire. METHODS: The study was carried out in Raffierkro and four neighbouring villages in central Côte d'Ivoire between 2007 and 2012...
May 4, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28465515/salmonella-typhimurium-infection-reduces-schistosoma-japonicum-worm-burden-in-mice
#18
Xiaoyang Zhu, Lu Chen, Junfang Wu, Huiru Tang, Yulan Wang
Coinfection of microorganisms is a common phenomenon in humans and animals. In order to further our understanding of the progress of coinfection and the possible interaction between different pathogens, we have built a coinfection mouse model with Schistosoma japonicum and Salmonella typhimurium, and used this model to investigate the systemic metabolic and immune responses using NMR-based metabonomics and immunological techniques. Our results show that Salmonella typhimurium (ATCC14028) infection reduces the number of adult schistosomal worms and eggs, relieves symptoms of schistosomiasis and also abates the mortality of mice infected by Schistosoma japonicum...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28463568/the-enzymatic-and-structural-basis-for-inhibition-of-echinococcus-granulosus-thioredoxin-glutathione-reductase-by-gold-i
#19
Gustavo Salinas, Wei Gao, Yang Wang, Mariana Bonilla, Long Yu, Andrei Novikov, Veridiana G Virginio, Henrique Ferreira, Marisol Vieites, Vadim N Gladyshev, Dinorah Gambino, Shaodong Dai
AIMS: New drugs are needed to treat flatworm infections that cause severe human diseases such as schistosomiasis. The unique flatworm enzyme thioredoxin glutathione reductase (TGR), structurally different from the human enzyme, is a key drug target. Structural studies of the flatworm Echinococcus granulosus TGR, free and complexed with AuI-MPO, a novel gold inhibitor, together with inhibition assays were performed. RESULTS: AuI-MPO is a potent TGR inhibitor that achieves 75% inhibition at a 1:1 TGR:Au ratio and efficiently kills E...
May 2, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28458868/the-presence-of-donor-liver-granuloma-requiring-further-workup-to-rule-out-parasitic-disease
#20
Atta Nawabi, Jesus Garcia, Anna Jimenez, Scott Turner, Mojtaba Olyaee, Wei Cui, Timothy Schmitt, Sean Kumer, Mark Reintjes, Ryan Taylor, Judi Olson, Nadia Nawabi, Perwaiz Nawabi
A shortage of donor organs is a major limitation to liver transplantation. Expansion of donor pool criteria to include patients with schistosomiasis diagnosed on liver biopsy might allow the allocation of more transplant livers. Schistosomiasis is a chronic parasitic disease affecting millions in endemic areas including sub-Sahara Africa that might lead to the development of granulomas as a response to the parasite's ova and might cause chronic liver disease and portal hypertension. Due to increased mobility globally, schistosomiasis may be encountered in non-endemic areas...
April 2017: Journal of Surgical Case Reports
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