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https://www.readbyqxmd.com/read/29416536/trichinella-spiralis-excretory-secretory-products-induce-tolerogenic-properties-in-human-dendritic-cells-via-toll-like-receptors-2-and-4
#1
Nataša Ilic, Alisa Gruden-Movsesijan, Jelena Cvetkovic, Sergej Tomic, Dragana Bozidar Vucevic, Carmen Aranzamendi, Miodrag Colic, Elena Pinelli, Ljiljana Sofronic-Milosavljevic
Trichinella spiralis, as well as its muscle larvae excretory-secretory products (ES L1), given either alone or via dendritic cells (DCs), induce a tolerogenic immune microenvironment in inbred rodents and successfully ameliorate experimental autoimmune encephalomyelitis. ES L1 directs the immunological balance away from T helper (Th)1, toward Th2 and regulatory responses by modulating DCs phenotype. The ultimate goal of our work is to find out if it is possible to translate knowledge obtained in animal model to humans and to generate human tolerogenic DCs suitable for therapy of autoimmune diseases through stimulation with ES L1...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29411109/molecular-identification-of-sarcocystis-lutrae-in-the-european-otter-lutra-lutra-and-the-european-badger-meles-meles-from-the-czech-republic
#2
Ondřej Máca
Muscular sarcosporidial infections by Sarcocystis lutrae (Apicomplexa: Sarcocystidae) from the otter (Lutra lutra) and badger (Meles meles) (Carnivora: Mustelidae) were found in the Czech Republic. As part of a diversity evaluation of Sarcocystis in wild carnivores during 2016-2017, samples of diaphragm, tongue and hind-limb muscles were collected from nine districts, examined by compression and characterized molecularly. Cyst walls were thin, with no visible protrusions, and histological sections of infected muscle tissue showed no host responses...
February 7, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29393919/a-community-based-study-to-estimate-the-seroprevalence-of-trichinellosis-and-echinococcosis-in-the-roma-and-non-roma-population-of-slovakia
#3
Daniela Antolová, Monika Halánová, Martin Janičko, Peter Jarčuška, Katarína Reiterová, Júlia Jarošová, Andrea Madarasová Gecková, Daniel Pella, Sylvia Dražilová
Trichinellosis and cystic and alveolar echinococcosis are serious parasitic diseases transmissible between animals and humans. Moreover, alveolar echinococcosis is considered one of the most dangerous of human helminthoses. Roma communities are particularly numerous in Central and Eastern Europe. They are often concentrated in economically undeveloped regions and live in segregated localities with unsatisfactory housing and sanitary conditions. The study aimed to find out the seroprevalence of Trichinella and Echinococcus infections in the Roma population of segregated settlements and to compare it with the seropositivity of the non-Roma population of eastern Slovakia...
February 2, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29382527/-proteomic-analysis-of-the-excretion-secretion-products-of-four-trichinella-spiralis-isolates-obtained-from-accidental-hosts
#4
Luz Ofelia Franco-Sandoval, Enedina Jiménez-Cardoso, Héctor Quezada-Pablo, Ana Laura Guzmán-Ortiz
BACKGROUND: Trichinella spiralis is an intestinal and tissue nematode specific for mammalian skeletal muscle, causing a series of physiological alterations. T. spiralis excretory-secretion products play an important role in the appearance and regulation of these alterations. However, the effect of these products on the infection and invasion of the parasite to the host is unknown. METHODS: Differences and similarities between antigenic proteins and surface proteins of four accidental hosts isolates (dogs) of T...
November 2017: Boletín Médico del Hospital Infantil de México
https://www.readbyqxmd.com/read/29382411/the-epidemiology-of-trichinellosis-in-the-arctic-territories-of-a-far-eastern-district-of-the-russian-federation
#5
A Uspensky, L Bukina, I Odoevskaya, S Movsesyan, M Voronin
Trichinellosis, a zoonotic disease caused by nematodes of the genus Trichinella, is still a public health concern in the Arctic. The aims of this study were to investigate the seroprevalence of anti-Trichinella IgG in aboriginal peoples of two settlements in the Chukotka Autonomous Okrug (Russian Federation) on the Arctic coast of the Bering Sea, and to evaluate the survival of Trichinella nativa larvae in local fermented and frozen meat products. A seroprevalence of 24.3% was detected in 259 people tested by an enzyme-linked immunosorbent assay (ELISA)...
January 31, 2018: Journal of Helminthology
https://www.readbyqxmd.com/read/29320813/therapeutic-effects-of-resiniferatoxin-related-with-immunological-responses-for-intestinal-inflammation-in-trichinellosis
#6
REVIEW
José Luis Muñoz-Carrillo, José Luis Muñoz-López, José Jesús Muñoz-Escobedo, Claudia Maldonado-Tapia, Oscar Gutiérrez-Coronado, Juan Francisco Contreras-Cordero, María Alejandra Moreno-García
The immune response against Trichinella spiralis at the intestinal level depends on the CD4+ T cells, which can both suppress or promote the inflammatory response through the synthesis of diverse cytokines. During the intestinal phase, the immune response is mixed (Th1/Th2) with the initial predominance of the Th1 response and the subsequent domination of Th2 response, which favor the development of intestinal pathology. In this context, the glucocorticoids (GC) are the pharmacotherapy for the intestinal inflammatory response in trichinellosis...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29317882/helminth-infections-of-rodents-and-their-zoonotic-importance-in-boyer-ahmad-district-southwestern-iran
#7
Mohammad Javad Ranjbar, Bahador Sarkari, Gholam Reza Mowlavi, Zeinab Seifollahi, Abdolali Moshfe, Samaneh Abdolahi Khabisi, Iraj Mobedi
Background: Rodents are considered as reservoirs of various zoonotic diseases including helminthic infections. The current study aimed to evaluate the prevalence of helminth infections in rodents, in Boyer-Ahmad district, Southwestern Iran. Methods: Overall, 52 rodents were captured from various areas of the district by Sherman live traps. The animals were then euthanized and dissected. During necropsy, each organ was examined macroscopically for presence of any cyst or visible parasite...
October 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/29287759/comparative-proteomics-analysis-of-trichinella-spiralis-muscle-larvae-exposure-to-albendazole-sulfoxide-stress
#8
Ruo Yu Peng, Hui Jun Ren, Chun Li Zhang, Pin Lv, Gao Hui Wei, Zhong Quan Wang, Jing Cui, Liang Ming
The drug albendazole (ABZ) has a positive effect against Trichinella spiralis infection and has been used for the treatment and prevention of trichinellosis in both humans and animals. However, the molecular mechanism of ABZ's effects on T. spiralis remains unknown now. Albendazole sulfoxide (ABZSO) is the main intermediary metabolic product of ABZ, and often used as a substitute of ABZ for the metabolism and bioavailability researches. Herein, isobaric tagging reagents for relative and absolute quantification (iTRAQ)-based LC-MS/MS analysis was used to identify the effect of ABZSO on the proteome of T...
December 26, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29259947/prevalence-of-trichinella-spp-infections-in-hunted-wild-boars-in-northern-iran
#9
Ali Rostami, Hooshang Khazan, Bahram Kazemi, Eshrat Beigom Kia, Mojgan Bandepour, Niloofar Taghipour, Gholamreza Mowlavi
Background: Trichinellosis is an important and neglected foodborne zoonotic infectious disease in worldwide. The most human outbreaks in recent years have been related to consumption of wild boar meat. This cross-sectional study determined the prevalence of Trichinella spp. infections in hunted wild boars in northern Iran. Methods: Thirty-five hunted wild boars were subjected in this study in 2015. All samples were examined by conventional artificial digestion method to detect of muscle larvae...
December 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/29258830/trichinella-spiralis-muscle-larvae-excretory-secretory-products-induce-changes-in-cytoskeletal-and-myogenic-transcription-factors-in-primary-myoblast-cultures
#10
Lizbeth Hernández-Ancheyta, María Del Rosario Salinas-Tobón, Juan Carlos Cifuentes-Goches, Javier Hernández-Sánchez
Trichinella spiralis infection in skeletal muscle culminates with nurse cell formation. The participation of excretory-secretory products of the muscle larvae (ML-ESP) has been implicated in this process through different studies performed in infected muscle and the muscle cell line C2C12. In this work, we developed primary myoblast cultures to analyze the changes induced by ML-ESP in muscle cells. Microarray analyses revealed expression changes in muscle cell differentiation, proliferation, cytoskeleton organization, cell motion, transcription, cell cycle, apoptosis and signaling pathways such as MAPK, Jak-STAT, Wnt and PI3K-Akt...
December 16, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/29246168/trichinella-spp-biomass-has-increased-in-raccoon-dogs-nyctereutes-procyonoides-and-red-foxes-vulpes-vulpes-in-estonia
#11
Age Kärssin, Liidia Häkkinen, Enel Niin, Katrin Peik, Annika Vilem, Pikka Jokelainen, Brian Lassen
BACKGROUND: Raccoon dogs and red foxes are well-adapted hosts for Trichinella spp. The aims of this study were to estimate Trichinella infection prevalence and biomass and to investigate which Trichinella species circulated in these indicator hosts in Estonia. METHODS: From material collected for evaluating the effectiveness of oral vaccination program for rabies eradication in wildlife, samples from 113 raccoon dogs and 87 red foxes were included in this study...
December 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29219110/molecular-identification-of-trichinella-species-by-multiplex-pcr-new-insight-for-trichinella-murrelli
#12
Grégory Karadjian, Aurélie Heckmann, Giuseppe La Rosa, Edoardo Pozio, Pascal Boireau, Isabelle Vallée
In order to identify Trichinella at the species level, the commonly used test is a multiplex PCR, allowing the discrimination of nine out of the twelve taxa described so far. This test is based on five primer pairs amplifying fragments of the large subunit rDNA. Each taxon produces one or two bands of different sizes, resulting in a specific band pattern. By multiplex PCR, Trichinella murrelli shows two bands of 127 bp and 316 bp. However, a third band of 256 bp can occur. This band can lead to misidentification, since it is similar to the 253 bp band displayed by Trichinella britovi...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/29199042/a-novel-antigenic-cathepsin-b-protease-induces-protective-immunity-in-trichinella-infected-mice
#13
Zhaoshou Yang, Wenjie Li, Zifan Yang, Aihua Pan, Wanqin Liao, Xingwang Zhou
Trichinellosis is a foodborne disease that remains a public health hazard and an economic problem in food safety. Vaccines against the parasite can be an effective way to control this disease; however, commercial vaccines against Trichinella infection are not yet available. Trichinella cathepsin B proteins appear to be promising targets for vaccine development. Here, we reported for the first time the characterization of a novel cDNA that encodes Trichinella spiralis (T. spiralis) cathepsin B-like protease 2 gene (TsCPB2)...
November 30, 2017: Vaccine
https://www.readbyqxmd.com/read/29189952/immuno-proteomic-analysis-of-trichinella-spiralis-t-pseudospiralis-and-t-papuae-extracts-recognized-by-human-t-spiralis-infected-sera
#14
Chalermchai Somboonpatarakun, Rutchanee Rodpai, Pewpan M Intapan, Oranuch Sanpool, Lakkhana Sadaow, Chaisiri Wongkham, Tonkla Insawang, Thidarut Boonmars, Wanchai Maleewong
The present study explored potentially immunogenic proteins of the encapsulated (Trichinella spiralis) and non-encapsulated (T. pseudospiralis, T. papuae) species within the genus Trichinella. The somatic muscle larval extracts of each species were subjected to immunoblotting analysis using human T. spiralis-infected serum samples. Fifteen reactive bands of all three species were selected for further protein identification by liquid chromatography-tandem mass spectrometry, and their possible functions were ascertained using the gene ontology...
November 30, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29176674/fast-and-reliable-differentiation-of-eight-trichinella-species-using-a-high-resolution-melting-assay
#15
Nikol Reslová, Lucie Škorpíková, Michal Slaný, Edoardo Pozio, Martin Kašný
High resolution melting analysis (HRMA) is a single-tube method, which can be carried out rapidly as an additional step following real-time quantitative PCR (qPCR). The method enables the differentiation of genetic variation (down to single nucleotide polymorphisms) in amplified DNA fragments without sequencing. HRMA has previously been adopted to determine variability in the amplified genes of a number of organisms. However, only one work to date has focused on pathogenic parasites-nematodes from the genus Trichinella...
November 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29173187/trichinella-spiralis-and-tumors-cause-coincidence-or-treatment
#16
Chengshui Liao, Xiangchao Cheng, Mingyuan Liu, Xuelin Wang, Pascal Boireau
Conventional therapeutic strategies for tumors have had limited success, and innovative and more effective approaches to treatment are urgently required. The ancient idea that various biological, bacterial, yeast, viral, and parasitic agents can be used as cancer therapeutics has gradually attracted considerable interest. Certain parasites have been widely discussed in association with human and animal tumors. Many researches have provided proofs that Trichinella spiralis (T. spiralis) possesses antitumor activities...
November 20, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29168448/a-competitive-enzyme-linked-immunosorbent-assay-for-rapid-detection-of-antibodies-against-trichinella-spiralis-and-t-britovi-one-test-for-humans-and-swine
#17
M Gnjatovic, A Gruden-Movsesijan, N Miladinovic-Tasic, N Ilic, S Vasilev, J Cvetkovic, Lj Sofronic-Milosavljevic
Infection with parasites from the Trichinella genus occurs in many vertebrates but disease only occurs in humans (trichinellosis). Humans are infected after the consumption of raw or undercooked meat from infected wild or domestic animals (usually swine or horses). Using the monoclonal antibody (mAb) 7C2C5, specific for an epitope unique to the muscle larvae of the genus Trichinella, we have developed a competitive enzyme-linked immunosorbent assay (c-ELISA) that enables the rapid detection of Trichinella-specific antibodies in sera originating from two different host species (human, swine) infected with either Trichinella spiralis or Trichinella britovi...
November 23, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/29168444/prevalence-and-molecular-identification-of-trichinella-species-isolated-from-wildlife-originating-from-limpopo-and-mpumalanga-provinces-of-south-africa
#18
S Mukaratirwa, L J La Grange, M P Malatji, B Reininghaus, J Lamb
Trichinella species are widely distributed on all continents with the exception of Antarctica, although the full spectrum of Trichinella species found in sub-Saharan African countries, and their hosts, has not been fully documented. This study was conducted to determine the prevalence of Trichinella in wildlife from the Greater Kruger National Park (GKNP) and adjacent areas located in the Limpopo and Mpumalanga provinces of South Africa, and to identify the species and/or genotypes of Trichinella larvae isolated from muscle tissues, using molecular techniques...
November 23, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/29166274/detection-of-experimental-swine-trichinellosis-using-commercial-elisa-test
#19
Michal Gondek, J Bień, Z Nowakowski
The aim of the study carried out on ten young (10-week old) pigs of the native Polish Large White breed experimentally infected with a low dose of 300 invasive muscle larvae (ML) of Trichinella spiralis was intravital detection of trichinellosis using the E-S ELISA test, determination of a variation level of IgG antibodies against excretory-secretory (E-S) antigens of T. spiralis muscle larvae and finally, describing the intensity of T. spiralis larvae infection in selected muscles. The pig sera were collected at 7 and 9 days prior to the experimental infection with T...
September 26, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29163382/immune-cell-responses-and-cytokine-profile-in-intestines-of-mice-infected-with-trichinella-spiralis
#20
Jing Ding, Xue Bai, Xuelin Wang, Haining Shi, Xuepeng Cai, Xuenong Luo, Mingyuan Liu, Xiaolei Liu
The intestinal phase is critical for trichinellosis caused by Trichinella spiralis (T. spiralis), as it determines both process and consequences of the disease. Several previous studies have reported that T. spiralis induces the initial predominance of a Th1 response during the intestine stage and a subsequent predominance of a Th2 response during the muscle stage. In the present study, immune cells and cytokine profile were investigated in the intestine of mice infected with T. spiralis. The results showed that the number of eosinophils, goblet cells, mucosal mast cells, and 33D1+ dendritic cells (DCs) increased during the intestinal phase of the infection...
2017: Frontiers in Microbiology
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