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https://www.readbyqxmd.com/read/28869156/molecular-diagnosis-of-potentially-human-pathogenic-enterocytozoon-bieneusi-and-encephalitozoon-species-in-exotic-birds-in-southwestern-iran
#1
Mehdi Tavalla, Masoumeh Mardani-Kateki, Rahman Abdizadeh, Shahrzad Soltani, Jasem Saki
Microsporidia are obligate intracellular parasites that produce spores. The infections caused by these parasites are mostly considered to be opportunistic in immunodeficient patients. Because of the zoonotic nature of microsporidia as well as the increasing prevalence of immunodeficiency diseases, the aim of this study was to evaluate the molecular diagnosis of Enterocytozoon bieneusi (E. bieneusi) and Encephalitozoon spp. in exotic birds in southwestern Iran. Initially, 816 stool specimens were collected and stained by modified trichrome (Weber) staining...
August 28, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28852108/expression-and-characterisation-of-a-sarcoptes-scabiei-protein-tyrosine-kinase-as-a-potential-antigen-for-scabies-diagnosis
#2
Nengxing Shen, Ran He, Yuqing Liang, Jing Xu, Manli He, Yongjun Ren, Xiaobin Gu, Weimin Lai, Yue Xie, Xuerong Peng, Guangyou Yang
Scabies is a disease that harms humans and other animals that is caused by the itch mite Sarcoptes scabiei burrowing into the stratum corneum of the skin. In the early stages of scabies, symptoms are often subclinical and there are no effective diagnostic methods. Herein, we cloned, expressed and characterised an S. scabiei protein tyrosine kinase (SsPTK) and evaluated its diagnostic value as a recombinant antigen in rabbit during the early stages of Sarcoptes infestation. The SsPTK protein is ~30 kDa, lacks a signal peptide, and shares high homology with a PTK from the rabbit ear mite Psoroptes ovis cuniculi...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28826405/genomic-analysis-of%C3%A2-methanogenic-archaea%C3%A2-reveals-a-shift-towards-energy-conservation
#3
Sean P Gilmore, John K Henske, Jessica A Sexton, Kevin V Solomon, Susanna Seppälä, Justin I Yoo, Lauren M Huyett, Abe Pressman, James Z Cogan, Veronika Kivenson, Xuefeng Peng, YerPeng Tan, David L Valentine, Michelle A O'Malley
BACKGROUND: The metabolism of archaeal methanogens drives methane release into the environment and is critical to understanding global carbon cycling. Methanogenesis operates at a very low reducing potential compared to other forms of respiration and is therefore critical to many anaerobic environments. Harnessing or altering methanogen metabolism has the potential to mitigate global warming and even be utilized for energy applications. RESULTS: Here, we report draft genome sequences for the isolated methanogens Methanobacterium bryantii, Methanosarcina spelaei, Methanosphaera cuniculi, and Methanocorpusculum parvum...
August 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28779899/effects-of-selected-indonesian-plant-extracts-on-e-%C3%A2-cuniculi-infection-in%C3%A2-vivo
#4
Bohumil Sak, Anna Jandová, Karel Doležal, Martin Kváč, Dana Květoňová, Lenka Hlásková, Michael Rost, Milan Olšanský, Wisnu Nurcahyo, Ivona Foitová
The present study was conducted to evaluate the methanolic extracts from several plant leaves widely used in traditional medicine to cure digestive tract disorders and in the self-medication of wild animals such as non-human primates, namely Archidendron fagifolium, Diospyros sumatrana, Shorea sumatrana, and Piper betle leaves, with regard to their antimicrosporidial activity against Encephalitozoon cuniculi in immunocompetent BALB/c mice determined using molecular detection of microsporidial DNA (qPCR) in various tissues and body fluids of infected, treated mice...
October 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28754285/dynamics-of-parasitophorous-vacuoles-formed-by-the-microsporidian-pathogen-encephalitozoon-cuniculi
#5
Soo Chan Lee, Joseph Heitman
It has been a long-standing debate if sexual development occurs in the microsporidian lineages. Previous studies, including morphological observations, ploidy analysis, and the presence of a sex-related locus, provided evidence of possible extant of sexual development. This study presents another line of evidence by monitoring the parasitophorous vacuoles (PVs) formed by Encephalitozoon cuniculi. Time lapse observations of infection cycles of E. cuniculi revealed that multiple PVs can be formed in a single host cell and the PVs in the single cell can merge (fusion) or split (fission)...
October 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28723944/application-of-mass-spectrometry-to-elucidate-the-pathophysiology-of-encephalitozoon-cuniculi-infection-in-rabbits
#6
Guillaume Desoubeaux, Maria Del Carmen Piqueras, Ana Pantin, Sanjoy K Bhattacharya, Roman Peschke, Anja Joachim, Carolyn Cray
Encephalitozoon cuniculi is a microsporidian species which can induce subclinical to serious disease in mammals including rabbits, a definitive natural host. The pathophysiology of infection has not been comprehensively elucidated. In this exploratory study, we utilized two mass spectrometry approaches: first, the analysis of the humoral response by profiling the microsporidian antigens as revealed by Western blot screening, and second, implementing the iTRAQ®-labeling protocol to focus on the changes within the host proteome during infection...
2017: PloS One
https://www.readbyqxmd.com/read/28635524/serology-and-protein-electrophoresis-for-evidence-of-exposure-to-12-mink-pathogens-in-free-ranging-american-mink-neovison-vison-in-argentina
#7
Pablo Eduardo Martino, Luis Ernesto Samartino, Néstor Oscar Stanchi, Nilda Esther Radman, Eduardo Joaquín Parrado
BACKGROUND: Basic pathologic characteristics for farmed minks were previously reported worldwide. However, its status in the wild has not been studied in detail. OBJECTIVE: Serology and electrophoresis were carried out for evidence of exposure to 12 mink pathogens on two different locations. ANIMALS AND METHODS: Serology was done in 87 wild minks by reference techniques against Toxoplasma gondii, Encephalitozoon cuniculi, Neospora caninum, Brucella abortus, Mycobacterium bovis, Leptospira interrogans, canine distemper virus (CDV), canine adenovirus (CAV), canine parvovirus (CPV), rabies virus (RV), Influenza A virus (FLUAV) and Aleutian disease virus (ADV)...
December 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28615854/sarcoptic-mange-infestation-in-rabbits-in-an-organized-farm-at-tamil-nadu
#8
M Arul Prakash, C Soundararajan, K Nagarajan, P Tensingh Gnanaraj, V Ramesh Saravanakumar
Sarcoptes scabiei are burrowing mites which causes major constraints in rabbit production. Eighty-eight rabbits were examined for mange infestation at University Research Farm, Tamil Nadu. Overall incidence of mange infestation in rabbit was 23.6 %. On microscopical examination, the mite was identified as Sacoptes scabiei var cuniculi. Among the breeds, Soviet Chinchilla were found to be infested more (57.14 %) followed by New Zealand White (28.57 %) and White Giant (28.57 %). Among the age groups, adults (33...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28576339/the-toxicity-and-the-acaricidal-mechanism-against-psoroptes-cuniculi-of-the-methanol-extract-of-adonis-coerulea-maxim
#9
Xiaofei Shang, Xiao Guo, Feng Yang, Bing Li, Hu Pan, Xiaolou Miao, Jiyu Zhang
SCOPE: Adonis coerulea Maxim. is a perennial herbaceous plant that grows in scrub, grassy slope areas, and as traditional medicine it has been used to treat animal acariasis for thousands of years. In this paper, we aimed to study the acute toxicity and cytotoxicity of the methanol extract of A. coerulea (MEAC) in vivo and in vitro for supporting the clinic uses. The acaricidal activity and the mechanism of action against Psoroptes cuniculi were investigated. RESULTS: The results showed that isoorientin, luteolin and apigenin were the primary compounds in MEAC...
June 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28438442/molecular-identification-of-enterocytozoon-bieneusi-and-encephalitozoon-spp-in-immunodeficient-patients-in-ahvaz-southwest-of-iran
#10
Mehdi Tavalla, Masoumeh Mardani-Kateki, Rahman Abdizadeh, Roohangiz Nashibi, Abdollah Rafie, Shahram Khademvatan
Microsporidia are often considered as an opportunistic infection in patients with impaired immune systems such as transplant recipients and patients with acquired immune deficiency syndrome (AIDS). Due to the increasing prevalence of parasitic infections and immunodeficiency diseases; the aim of the study is to evaluate molecular identification of Enterocytozoon bieneusi and Encephalitozoon spp. in immunodeficient patients in Ahvaz, southwest of Iran. At first, 310 stool samples were collected from patients with immunodeficiency...
April 21, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28399300/diversity-of-flea-siphonaptera-parasites-on-red-foxes-vulpes-vulpes-in-romania
#11
P Foley, J Foley, A D Sándor, A M Ionica, I A Matei, G D'Amico, C M Gherman, C Dom A, A D Mihalca
Red foxes (Vulpes vulpes (L.)) are widespread across Europe, tolerant of synanthropic ecosystems, and susceptible to diseases potentially shared with humans and other animals. We describe flea fauna on red foxes in Romania, a large, ecologically diverse country, in part because fleas may serve as an indicator of the risk of spillover of vector-borne disease. We found 912 individual fleas of seven species on the 305 foxes assessed, for an infestation prevalence of 49.5%. Mean flea load per fox was 5.8 (range 0-44 fleas), and flea detections were most abundant in fall and early spring...
September 1, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28361965/transcriptomics-and-proteomic-studies-reveal-acaricidal-mechanism-of-octadecanoic-acid-3-4-tetrahydrofuran-diester-against-sarcoptes-scabiei-var-cuniculi
#12
Xu Song, Zhenzhen Chen, Renyong Jia, Mei Cao, Yuanfeng Zou, Lixia Li, Xiaoxia Liang, Lizi Yin, Changliang He, Guizhou Yue, Zhongqiong Yin
In our previous study, a new compound, octadecanoic acid-3, 4-tetrahydrofuran diester, possessing potent acaricidal activity was obtained from neem oil. This study performed RNA-seq transcriptomics and iTRAQ proteomics to uncover the acaricidal mechanism of the compound against Sarcoptes scabiei var. cuniculi. The results of transcriptomics indicated that after treatment with octadecanoic acid-3, 4-tetrahydrofuran diester, genes related to "Energy metabolism" were significantly up-/down-regulated, including citrate cycle, oxidative phosphorylation pathway and fatty acid metabolism...
March 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28342673/therapeutic-use-of-bacillus-thuringiensis-in-the-treatment-of-psoroptic-mange-in-naturally-infested-new-zealand-rabbits
#13
Emmanuel Dunstand-Guzmán, Claudia Hallal-Calleros, Jorge Morales-Montor, Víctor Manuel Hernández-Velázquez, Juan José Zárate-Ramos, Kurt L Hoffman, Guadalupe Peña-Chora, Fernando Iván Flores-Pérez
Bacillus thuringiensis is a bacteria known for its bioinsecticidal toxins and it has been proposed as an alternative in the treatment of several parasites that infect domestic animals (helminths, ticks, mites). In this work, we evaluated the clinical efficiency of the Bacillus thuringiensis GP532 strain in the treatment of six rabbits naturally infested with the P. cuniculi mite. GP532 extract (10mg/ml) was applied by aspersion in both pinna, with a second application after seven days, and the therapeutic effect was measured in both qualitative and quantitative manner...
March 9, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28321967/comparative-analysis-of-the-proteins-with-tandem-repeats-from-8-microsporidia-and-characterization-of-a-novel-endospore-wall-protein-colocalizing-with-polar-tube-from-nosema-bombycis
#14
Ying Wang, Huixia Geng, Xiaoqun Dang, Heng Xiang, Tian Li, Guoqing Pan, Zeyang Zhou
As a common feature of eukaryotic proteins, tandem amino acid repeat has been studied extensively in both animal and plant proteins. Here, a comparative analysis focusing on the proteins having tandem repeats was conducted in eight microsporidia, including four mammal-infecting microsporidia (Encephalitozoon cuniculi, Encephalitozoon intestinalis, Encephalitozoon hellem and Encephalitozoon bieneusi) and four insect-infecting microsporidia (Nosema apis, Nosema ceranae, Vavraia culicis and Nosema bombycis). We found that the proteins with tandem repeats were abundant in these species...
March 21, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28303005/ligand-co-crystallization-of-aminoacyl-trna-synthetases-from-infectious-disease-organisms
#15
Spencer O Moen, Thomas E Edwards, David M Dranow, Matthew C Clifton, Banumathi Sankaran, Wesley C Van Voorhis, Amit Sharma, Colin Manoil, Bart L Staker, Peter J Myler, Donald D Lorimer
Aminoacyl-tRNA synthetases (aaRSs) charge tRNAs with their cognate amino acid, an essential precursor step to loading of charged tRNAs onto the ribosome and addition of the amino acid to the growing polypeptide chain during protein synthesis. Because of this important biological function, aminoacyl-tRNA synthetases have been the focus of anti-infective drug development efforts and two aaRS inhibitors have been approved as drugs. Several researchers in the scientific community requested aminoacyl-tRNA synthetases to be targeted in the Seattle Structural Genomics Center for Infectious Disease (SSGCID) structure determination pipeline...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28288764/acaricidal-activities-of-the-essential-oil-from-rhododendron-nivale-hook-f-and-its-main-compund-%C3%AE-cadinene-against-psoroptes-cuniculi
#16
Xiao Guo, Xiaofei Shang, Bing Li, Xu Zheng Zhou, Hao Wen, Jiyu Zhang
In this paper, the acaricidal activities of Rhododendron nivale Hook. f. and its main compound, δ-cadinene were investigated, and the chemical composition of the essential oil was analyzed. The results showed that among aqueous, 70% ethanols, acetic ether, chloroform, petroleum ether and essential oil extracts from the shoots and leaves, the essential oil showed the best in vitro acaricidal activity against adult P. cuniculi, which occurred in a concentration- and time-dependent manner. The median lethal time (LT50) values of four concentrations (33...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28288759/feline-and-canine-leishmaniosis-and-other-vector-borne-diseases-in-the-aeolian-islands-pathogen-and-vector-circulation-in-a-confined-environment
#17
Domenico Otranto, Ettore Napoli, Maria Stefania Latrofa, Giada Annoscia, Viviana Domenica Tarallo, Grazia Greco, Eleonora Lorusso, Laura Gulotta, Luigi Falsone, Fabrizio Solari Basano, Maria Grazia Pennisi, Katrin Deuster, Gioia Capelli, Filipe Dantas-Torres, Emanuele Brianti
Vector-borne diseases (VBDs) are prevalently investigated in dogs. Studies on feline VBDs are scant, though feline leishmaniosis (FeL) is increasingly recognised as a disease of cats in endemic areas. Comprehensive investigations on the distribution of VBDs in populations of cats and dogs living in relatively small geographical areas, such as islands, are currently lacking. In this study the prevalence of Leishmania infantum and other VBD pathogens was assessed in cohorts of cats and dogs living in the Aeolian Islands...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28251698/use-of-oral-fluralaner-for-the-treatment-of-psoroptes-cuniculi-in-15-naturally-infested-rabbits
#18
Galia Sheinberg, Camilo Romero, Rafael Heredia, Miguel Capulin, Enrique Yarto, Juan Carpio
BACKGROUND: Psoroptes cuniculi, a nonburrowing ear mite, is a common ectoparasite of rabbits. Constant irritation of the auditory canal by the presence of this mite can lead to otitis externa or otoacariasis. OBJECTIVE: The goal of this study was to evaluate the effect of fluralaner on rabbits naturally infested with P. cuniculi and exhibiting clinical signs. ANIMALS: Fifteen female New Zealand domestic rabbits with otitis due to naturally occurring infestation with P...
March 1, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28220747/three-cases-of-neurologic-syndrome-caused-by-donor-derived-microsporidiosis
#19
Rachel M Smith, Atis Muehlenbachs, Joanna Schaenmann, Sanjiv Baxi, Sophia Koo, Dianna Blau, Peter Chin-Hong, Anna R Thorner, Matthew J Kuehnert, Kristina Wheeler, Alexis Liakos, Jonathan W Jackson, Theresa Benedict, Alexandre J da Silva, Jana M Ritter, Dominique Rollin, Maureen Metcalfe, Cynthia S Goldsmith, Govinda S Visvesvara, Sridhar V Basavaraju, Sherif Zaki
In April 2014, a kidney transplant recipient in the United States experienced headache, diplopia, and confusion, followed by neurologic decline and death. An investigation to evaluate the possibility of donor-derived infection determined that 3 patients had received 4 organs (kidney, liver, heart/kidney) from the same donor. The liver recipient experienced tremor and gait instability; the heart/kidney and contralateral kidney recipients were hospitalized with encephalitis. None experienced gastrointestinal symptoms...
March 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28205456/histochemical-study-of-encephalitozoon-cuniculi-spores-in-the-kidneys-of-naturally-infected-new-zealand-rabbits
#20
Luis E Rodríguez-Tovar, Alejandra Villarreal-Marroquín, Alicia M Nevárez-Garza, Uziel Castillo-Velázquez, Heidi G Rodríguez-Ramírez, Magda C Navarro-Soto, Juán J Zárate-Ramos, Gustavo Hernández-Vidal, Armando Trejo-Chávez
Encephalitozoon cuniculi is an important microsporidian pathogen that is considered an emergent, zoonotic, and opportunistic. It infects both domestic and laboratory rabbits, generating severe chronic interstitial and granulomatous nephritis with fibrosis and granulomatous encephalitis. Encephalitozoonosis is diagnosed in paraffin-embedded sections by examining the spores in the host tissues. The spores are difficult to observe when the samples are stained with hematoxylin and eosin (H&E), particularly when there is an inflammatory reaction and tissue damage...
May 2017: Journal of Veterinary Diagnostic Investigation
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