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https://www.readbyqxmd.com/read/28535299/analysis-of-bacterial-metagenomes-from-the-southwestern-gulf-of-mexico-for-pathogens-detection
#1
Wendy Escobedo-Hinojosa, Liliana Pardo-López
Little is known about the diversity of bacteria in the Southwestern Gulf of Mexico. The aim of the study illustrated in this perspective was to search for the presence of bacterial pathogens in this ecosystem, using metagenomic data recently generated by the Mexican research group known as the Gulf of Mexico Research Consortium. Several genera of bacteria annotated as pathogens were detected in water and sediment marine samples. As expected, native and ubiquitous pathogenic bacteria genera such as Burkolderia, Halomonas, Pseudomonas, Shewanella, and Vibrio were highly represented...
May 23, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28529926/manipulation-of-host-cholesterol-by-obligate-intracellular-bacteria
#2
REVIEW
Dhritiman Samanta, Minal Mulye, Tatiana M Clemente, Anna V Justis, Stacey D Gilk
Cholesterol is a multifunctional lipid that plays important metabolic and structural roles in the eukaryotic cell. Despite having diverse lifestyles, the obligate intracellular bacterial pathogens Chlamydia, Coxiella, Anaplasma, Ehrlichia, and Rickettsia all target cholesterol during host cell colonization as a potential source of membrane, as well as a means to manipulate host cell signaling and trafficking. To promote host cell entry, these pathogens utilize cholesterol-rich microdomains known as lipid rafts, which serve as organizational and functional platforms for host signaling pathways involved in phagocytosis...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28526093/canine-infection-with-borrelia-burgdorferi-dirofilaria-immitis-anaplasma-spp-and-ehrlichia-spp-in-canada-2013-2014
#3
Brian H Herrin, Andrew S Peregrine, Jonas Goring, Melissa J Beall, Susan E Little
BACKGROUND: Canine test results generated by veterinarians throughout Canada from 2013-2014 were evaluated to assess the geographical distribution of canine infection with Borrelia burgdorferi, Dirofilaria immitis, Ehrlichia spp., and Anaplasma spp. METHODS: The percent positive test results of 115,636 SNAP® 4Dx® Plus tests from dogs tested were collated by province and municipality to determine the distribution of these vector-borne infections in Canada. RESULTS: A total of 2,844/115,636 (2...
May 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28502642/molecular-detection-of-tick-borne-pathogens-in-wild-red-foxes-vulpes-vulpes-from-central-italy
#4
Valentina Virginia Ebani, Guido Rocchigiani, Simona Nardoni, Fabrizio Bertelloni, Violetta Vasta, Roberto Amerigo Papini, Ranieri Verin, Alessandro Poli, Francesca Mancianti
Spleen samples from 153 red foxes, shot during regular hunting season in the province of Pisa (Central Italy), were examined to detect DNA of Anaplasma phagocytophilum, Ehrlichia canis, Coxiella burnetii, Francisella tularensis, Hepatozoon canis and Babesia sp./Theileria sp. DNA of vector-borne pathogens was detected in 120 (78.43%; 95% CI: 71.06-84.66%) foxes. Specifically, 75 (49%; 95% CI: 40.86-57.22%) animals scored PCR-positive per H. canis, 68 (44.44%; 95% CI: 36.42-52.69%) for E. canis, 35 (22.88%; 95% CI: 16...
May 11, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28457822/assessment-of-a-quantitative-5-nuclease-real-time-polymerase-chain-reaction-using-groel-gene-for-ehrlichia-and-anaplasma-species-in-rodents-in-brazil
#5
Jyan Lucas Benevenute, John Stephen Dumler, Maria Ogrzewalska, André Luiz Rodrigues Roque, Victoria Valente Califre Mello, Keyla Carstens Marques de Sousa, Luiz Ricardo Gonçalves, Paulo Sérgio D'Andrea, Elba Regina de Sampaio Lemos, Rosangela Zacarias Machado, Marcos Rogério André
New genotypes of Anaplasmataceae agents have been detected in wild carnivores, birds and deer in Brazil. The present work aimed to investigate the presence of Ehrlichia and Anaplasma species in rodents sampled in Brazil. Additionally, a newly designed quantitative 5' nuclease real-time multiplex PCR for Ehrlichia and Anaplasma spp. detection based on groEL gene amplification was designed, showing high specificity and sensitivity (10 groEL fragment copy/μL). Between 2000 and 2011, different rodent species [n=60] were trapped in 5 Brazilian biomes...
April 23, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28457353/tick-borne-emerging-infections-ehrlichiosis-and-anaplasmosis
#6
REVIEW
Nahed Ismail, Jere W McBride
Human ehrlichiosis and anaplasmosis are acute febrile tick-borne infectious diseases caused by various members from the genera Ehrlichia and Anaplasma. Ehrlichia chaffeensis is the major etiologic agent of human monocytotropic ehrlichiosis (HME), while Anaplasma phagocytophilum is the major cause of human granulocytic anaplasmosis (HGA). The clinical manifestations of HME and HGA ranges from subclinical to potentially life-threatening diseases associated with multi-organ failure. Macrophages and neutrophils are the major target cells for Ehrlichia and Anaplasma, respectively...
June 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/28455331/reverse-line-blot-based-detection-approaches-of-microbial-pathogens-in-ixodes-ricinus-ticks-collected-in-austria-and-impact-of-the-chosen-method
#7
Anna-Margarita Schötta, Michiel Wijnveld, Hannes Stockinger, Gerold Stanek
Ticks transmit a large number of pathogens capable of causing human disease. In this study, the PCR-reverse line blot (RLB) method was used to screen for pathogens in a total of 554 Ixodes ricinus ticks collected from all provinces of Austria. These pathogens belong to the genera Borrelia, Rickettsiae, Anaplasma/(Neo-)Ehrlichia, Babesia, and CoxiellaThe pathogens with the highest detected prevalence were spirochetes of the Borrelia burgdorferi sensu lato complex, in 142 ticks (25.6%). B. afzelii (80/142) was the most frequently detected species, followed by B...
April 28, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28449722/prevalence-of-tick-borne-haemoparasites-in-small-ruminants-in-turkey-and-diagnostic-sensitivity-of-single-pcr-and-rlb
#8
Huseyin Bilgin Bilgic, Serkan Bakırcı, Onur Kose, Ahmet Hakan Unlu, Selin Hacılarlıoglu, Hasan Eren, William Weir, Tulin Karagenc
BACKGROUND: Tick-borne haemoparasitic diseases (TBHDs), caused by Theileria, Babesia, Anaplasma and Ehrlichia, are common in regions of the world where the distributions of host, pathogen and vector overlap. Many of these diseases threaten livestock production and some also represent a concern to human public health. The primary aim of this study was to determine the prevalence of the above-mentioned pathogens in a large number of blood samples (n = 1979) collected from sheep (n = 1727) and goats (n = 252) in Turkey...
April 27, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28448211/prevalence-and-geographic-distribution-of-vector-borne-pathogens-in-apparently-healthy-dogs-in-croatia
#9
Vladimir Mrljak, Josipa Kuleš, Željko Mihaljević, Marin Torti, Jelena Gotić, Martina Crnogaj, Tatjana Živičnjak, Iva Mayer, Iva Šmit, Mangesh Bhide, Renata Barić Rafaj
Vector-borne pathogens (VBPs) are a group of globally extended and quickly spreading pathogens that are transmitted by various arthropod vectors. The aim of the present study was to investigate the seroprevalence against Babesia canis, Anaplasma phagocytophilum, Borrelia burgdorferi sensu lato, Leishmania infantum, Dirofilaria immitis, and Ehrlichia canis in dogs in Croatia. We investigated 435 randomly selected apparently healthy dogs in 13 different locations of Croatia for antibodies to B. canis by indirect immunofluorescence using a commercial IFA IgG Antibody Kit...
April 27, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28438088/anaplasma-ehrlichia-and-rickettsia-species-infections-in-cats
#10
Maria Grazia Pennisi, Regina Hofmann-Lehmann, Alan D Radford, Séverine Tasker, Sándor Belák, Diane D Addie, Corine Boucraut-Baralon, Herman Egberink, Tadeusz Frymus, Tim Gruffydd-Jones, Katrin Hartmann, Marian C Horzinek, Margaret J Hosie, Albert Lloret, Hans Lutz, Fulvio Marsilio, Etienne Thiry, Uwe Truyen, Karin Möstl
Anaplasma species, Ehrlichia species and Rickettsia species are vector-borne pathogens infecting a wide variety of mammals, but causing disease in very few of them. Infection in cats: Anaplasma phagocytophilum is the most important feline pathogen among these rickettsial organisms, and coinfections are possible. Little information is available on the pathogenesis of these agents in cats. Clinical signs are usually reported soon after tick infestation. They are mostly non-specific, consisting of fever, anorexia and lethargy...
May 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28423085/molecular-survey-of-anaplasma-platys-and-ehrlichia-canis-in-dogs-from-campo-grande-mato-grosso-do-sul-brazil
#11
Rodrigo Soares, Carlos Alberto Ramos, Thatianna Pedroso, Verônica Babo-Terra, Herbert Cleveland, Flábio DE Araújo
This study investigated the frequency of infection by Anaplasma platys and Ehrlichia canis in dogs submitted to animal health centers in Campo Grande, state of Mato Grosso do Sul, Brazil. E. canis and A. platys showed infection frequencies of 55.75% and 16.96%, respectively. The identity of the two species was confirmed by DNA sequencing.
January 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28419136/occurrence-of-leishmania-infantum-in-the-central-nervous-system-of-naturally-infected-dogs-parasite-load-viability-co-infections-and-histological-alterations
#12
Valéria da Costa Oliveira, Viviane Cardoso Boechat, Artur Augusto Velho Mendes Junior, Maria de Fátima Madeira, Luiz Claudio Ferreira, Fabiano Borges Figueiredo, Monique Paiva Campos, Francisco das Chagas de Carvalho Rodrigues, Raquel de Vasconcellos Carvalhaes de Oliveira, Maria Regina Reis Amendoeira, Rodrigo Caldas Menezes
Zoonotic visceral leishmaniasis is caused by the protozoan Leishmania infantum and little is known about the occurrence and pathogenesis of this parasite in the CNS. The aims of this study were to evaluate the occurrence, viability and load of L. infantum in the CNS, and to identify the neurological histological alterations associated with this protozoan and its co-infections in naturally infected dogs. Forty-eight Leishmania-seropositive dogs from which L. infantum was isolated after necropsy were examined...
2017: PloS One
https://www.readbyqxmd.com/read/28417248/ticks-and-tick-borne-pathogens-of-dogs-along-an-elevational-and-land-use-gradient-in-chiriqu%C3%A3-province-panam%C3%A3
#13
A Michelle Ferrell, R Jory Brinkerhoff, Juan Bernal, Sergio E Bermúdez
Systematic acarological surveys are useful tools in assessing risk to tick-borne infections, especially in areas where consistent clinical surveillance for tick-borne disease is lacking. Our goal was to identify environmental predictors of tick burdens on dogs and tick-borne infectious agents in dog-derived ticks in the Chiriquí Province of western Panama to draw inferences about spatio-temporal variation in human risk to tick-borne diseases. We used a model-selection approach to test the relative importance of elevation, human population size, vegetative cover, and change in landuse on patterns of tick parasitism on dogs...
April 17, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28411028/extensive-diversity-of-rickettsiales-bacteria-in-ticks-from-wuhan-china
#14
Miao Lu, Jun-Hua Tian, Bin Yu, Wen-Ping Guo, Edward C Holmes, Yong-Zhen Zhang
Rickettsiales bacteria are important agents of (re)emerging infectious diseases, with ticks playing a key role in their evolution and transmission. We collected 1079 hard ticks belonging to five species (Ixodes sinensis, Rhipicephalus microplus, Haemaphysalis flava, Haemaphysalis hystricis and Haemaphysalis longicornis) from cattle and goats in Wuhan city, Hubei province, China. The dominant tick species was H. longicornis (578, 53.57%), followed by R. microplus (354, 32.81%), H. hystricis (62, 5.75%), H. flava (57, 5...
March 24, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28410950/detection-of-anaplasma-spp-and-ehrlichia-spp-anibodies-and-dirofilaria-immitis-antigens-in-dogs-from-seven-locations-of-morocco
#15
Sarah Elhamiani Khatat, Khalid Khallaayoune, Nabil Errafyk, Frans Van Gool, Luc Duchateau, Sylvie Daminet, Malika Kachani, Hamid El Amri, Rahma Azrib, Hamid Sahibi
In Morocco no data has been published on canine exposure to Anaplasma spp., Borrrelia burgdorferi, and Ehrlichia spp., and only one report is available on the occurrence of Dirofilaria immitis in dogs. Therefore, the aim of this study was to collect current data on the canine exposure to these vector-borne pathogens (VBPs) in Morocco. A total of 217 urban (n=57), rural (n=110) and military (n=50) dogs from seven Moroccan locations were screened for Anaplasma spp., B. burgdorferi and Ehrlichia spp. antibodies and for D...
April 4, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28385540/performance-of-leishmania-braziliensis-enolase-protein-for-the-serodiagnosis-of-canine-and-human-visceral-leishmaniosis
#16
Mariana Costa Duarte, Daniela Pagliara Lage, Vívian Tamietti Martins, Lourena Emanuele Costa, Beatriz Cristina Silveira Salles, Ana Maria Ravena Severino Carvalho, Thaís Teodoro de Oliveira Santos, Daniel Silva Dias, Patrícia Aparecida Fernandes Ribeiro, Miguel Angel Chávez-Fumagalli, Ricardo Andrez Machado-de-Ávila, Bruno Mendes Roatt, Daniel Menezes-Souza, Danielle Ferreira de Magalhães-Soares, Eduardo Antonio Ferraz Coelho
In the present study, Leishmania braziliensis enolase was cloned and the recombinant protein (rEnolase) was evaluated for the serodiagnosis of canine and human visceral leishmaniosis (VL). For the canine VL diagnosis, this study examined serum samples of Leishmania infantum-infected dogs, from non-infected animals living in endemic or non-endemic areas of leishmaniosis, as well as those from Leish-Tec(®)-vaccinated dogs and Trypanosoma cruzi or Ehrlichia canis experimentally infected animals. For the human VL diagnosis, this study analyzed serum samples from VL patients, from non-infected subjects living in endemic or non-endemic areas of leishmaniosis, as well as those from T...
March 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28382279/corrigendum-comparative-genomics-of-the-zoonotic-pathogen-ehrlichia-chaffeensis-reveals-candidate-type-iv-effectors-and-putative-host-cell-targets
#17
Christophe Noroy, Damien F Meyer
[This corrects the article on p. 204 in vol. 6, PMID: 28180111.].
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28344412/clinical-and-hematobiochemical-response-in-canine-monocytic-ehrlichiosis-seropositive-dogs-of-punjab
#18
Manasa R Kottadamane, Pritpal Singh Dhaliwal, Lachhman Das Singla, Baljinder Kumar Bansal, Sanjeev Kumar Uppal
AIM: As in India especially, the Punjab state sero-prevalence and distribution of ehrlichiosis in relation to clinico-hematobiochemical response remains largely unexplored. Thus, this study was designed to determine the prevalence of vector (tick)-borne tropical canine pancytopenia caused by Ehrlichia canis through enzyme labeled ImmunoComb(®) (IC) assay in dogs from in and around Ludhiana, Punjab. Correlation of prevalence was made with various clinico-hematobiochemical parameters. MATERIALS AND METHODS: Seroprevalence study was carried out using IC(®) test kit (Biogal, Galed Labs)...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28335825/canine-tick-borne-diseases-in-pet-dogs-from-romania
#19
Martin O Andersson, Conny Tolf, Paula Tamba, Mircea Stefanache, Jonas Waldenström, Gerhard Dobler, Lidia Chițimia-Dobler
BACKGROUND: Tick-borne diseases are of substantial concern worldwide for animals as well as humans. Dogs have been a human companion for millennia, and their significant impact on human life renders disease in dogs to be of great concern. Tick-borne diseases in dogs represent a substantial diagnostic challenge for veterinarians in that clinical signs are often diffuse and overlapping. In addition, co-infections with two or more pathogens enhance this problem further. Molecular methods are useful to disentangle co-infections and to accurately describe prevalence and geographical distribution of tick-borne diseases...
March 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28333306/protein-aggregation-in-ehrlichia-chaffeensis-during-infection-of-mammalian-cells
#20
Dorota Kuczynska-Wisnik, Chuanmin Cheng, Roman R Ganta, Michal Zolkiewski
Ehrlichia chaffeensis is an obligatory intracellular pathogen transmitted through infected ticks to humans and other vertebrates. We investigated the extent of protein aggregation in E. chaffeensis during infection of canine macrophage cell line, DH82. We discovered that the size of the aggregated fraction of E. chaffeensis proteins increased during the first 48 h post infection. We also incubated the infected cells with guanidinium chloride (GuHCl), a known inhibitor of the protein-disaggregating molecular chaperone ClpB...
March 1, 2017: FEMS Microbiology Letters
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