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Parasitology Research

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https://www.readbyqxmd.com/read/28224222/immunopathological-characterization-of-human-cutaneous-leishmaniasis-lesions-caused-by-leishmania-viannia-spp-in-amazonian-brazil
#1
Cláudia Maria Castro Gomes, Maria Gloria Teixeira Sousa, Joyce Prieto Bezerra Menezes, Marliane Campos Batista, Ana Carolina Stocco Lima, Walter Belda, Daniel Bradshaw, Monica Elinor Alves Gama, Márcia Dalastra Laurenti, Fernando Tobias Silveira, Carlos Eduardo Pereira Corbett
American cutaneous leishmaniasis (ACL) is a chronic infectious disease caused by different protozoan species of Leishmania, and it is endemic in both tropical and subtropical countries. Using immunohistochemistry, we investigate the density of CD68(+), lysozyme(+), CD1a(+), factor XIIIa(+), CD4(+), CD8(+), CD56(+), interferon (IFN)-γ(+), and inducible NO synthase (iNOS(+)) cells. These cells were analyzed from 22 biopsy samples obtained from the lesions of ACL patients, whose infection was caused by Leishmania (Viannia) spp...
February 21, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28220242/expression-of-clonorchis-sinensis-giiispla2-protein-in-baculovirus-infected-insect-cells-and-its-overexpression-facilitating-epithelial-mesenchymal-transition-in-huh7-cells-via-akt-pathway
#2
Mei Shang, Zhizhi Xie, Zeli Tang, Lei He, Xiaoyun Wang, Caiqin Wang, Yinjuan Wu, Ye Li, Lu Zhao, Zhiyue Lv, Zhongdao Wu, Yan Huang, Xinbing Yu, Xuerong Li
Although prior studies confirmed that group III secretory phospholipase A2 of Clonorchis sinensis (CsGIIIsPLA2) had stimulating effect on liver fibrosis by binding to LX-2 cells, large-scale expression of recombinant protein and its function in the progression of hepatoma are worth exploring. Because of high productivity and low lipopolysaccharides (LPS) in the Sf9-baculovirus expression system, we firstly used this system to express the coding region of CsGIIIsPLA2. The molecular weight of recombinant CsGIIIsPLA2 protein was about 34 kDa...
February 20, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28214918/first-record-of-three-african-trichodinids-ciliophora-peritrichida-in-cultured-nile-tilapia-oreochromis-niloticus-in-saudi-arabia-with-re-evaluation-of-their-host-specificity
#3
Abdel-Azeem Sh Abdel-Baki, Ali Al Ghamdi, Saleh Al-Quraishy
Saudi Arabia has a developing aquaculture industry that farms primarily tilapia. Although trichodinids are presumably the most usually encountered protozoan parasites in these cultured fish, they have rarely been studied in this context, and there is no data on the species that might infect cultured tilapia in Saudi Arabia. The present study was therefore carried out as a general survey to investigate the occurrence and identify the species of trichodinids that can infect cultured tilapia (Oreochromis niloticus) in Saudi Arabia...
February 18, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28213655/molecular-characterization-of-the-unique-mesostephanus-appendiculatus-trematoda-cyathocotylidae-by-small-ribosomal-rna-from-egypt
#4
Nasr M El-Bahy, Eman K Bazh, Shimaa S Sorour, Nagwa M Elhawary
M esostephanus appendiculatus (Family: Cyathocotylidae) is one of the unique trematodes that complete their cycles in human and animal intestines in many countries of the world. The main source of its transmission is eating raw or undercooked infected fish muscle. Earliest analyses of genes to different parasites supported the analysis of helminthes either biological or morphological. This paper detected M. appendiculatus sequence with GenBank accession number gb (KY026782). Comparison of M. appendiculatus with other helminthes using BioEdit 7 and MEGA7 program shows some similarity in different points along its sequence...
February 18, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28210845/whipworm-diversity-in-west-african-rodents-a-molecular-approach-and-the-description-of-trichuris-duplantieri-n-sp-nematoda-trichuridae
#5
Alexis Ribas, Christophe Diagne, Caroline Tatard, Mamoudou Diallo, Srisupaph Poonlaphdecha, Carine Brouat
Whipworms were collected from rodents (Muridae) from six West African countries: Burkina-Faso, the Islamic Republic of Mauritania, and the Republics of Benin, Guinea, Mali and Senegal. Molecular sequences (ITS-1, 5.8S and ITS-2 of the ribosomal DNA gene) and morphometric characters were analysed in Trichuris (Nematoda: Trichuridae) specimens found in seven host species: Arvicanthis niloticus, Gerbilliscus gambianus, Gerbillus gerbillus, G. tarabuli, Mastomys erythroleucus, M. huberti and M. natalensis. Phylogenetic analyses revealed three clades, one recognised as Trichuris mastomysi, previously recorded in M...
February 16, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28204958/biological-control-of-snail-hosts-transmitting-schistosomiasis-by-the-water-bug-sphaerodema-urinator
#6
Aly Younes, Hanaa El-Sherief, Fathia Gawish, Marwa Mahmoud
The water bug, Sphaerodema urinator (Hemiptera : Belostomatidae), shares the same habitat of the freshwater snails in ponds, lakes, and streams. Studies conducted in lakes show that fish and crayfish predators play an important role in determining the abundance of freshwater snails. In contrast, shallow ponds and marches often lack fish and crayfish but have abundant insect predators. This study has been carried out to evaluate the predatory potential of S. urinator adult on two freshwater snails that serves as intermediate hosts of Schistosoma...
February 15, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28197763/development-of-t-m-shift-genotyping-method-for-detection-of-cat-derived-giardia-lamblia
#7
Weida Pan, Yeqi Fu, Auwalu Yusuf Abdullahi, Mingwei Wang, Xianli Shi, Fang Yang, Xingang Yu, Xinxin Yan, Pan Zhang, Jianxiong Hang, Guoqing Li
To develop T m -shift genotyping method for detection of cat-derived Giardia lamblia, two sets of primers with two GC-rich tails of unequal length attached to their 5'-end were designed according to two SNPs (BG434 and BG170) of β-giardin (bg) gene, and specific PCR products were identified by inspection of a melting curve on real-time PCR thermocycler. A series of experiments on the stability, sensitivity, and accuracy of T m -shift method was tested, and clinical samples were also detected. The results showed that two sets of primers based on SNP could distinguish accurately between assemblages A and F...
February 15, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28197762/mitochondrial-haplotypes-of-aelurostrongylus-abstrusus-and-troglostrongylus-brevior-nematoda-metastrongyloidea-from-domestic-and-wild-felids
#8
Donato Traversa, Fabrizia Veronesi, Anastasia Diakou, Raffaella Iorio, Giulia Simonato, Federica Marcer, Angela Di Cesare
The lungworm Aelurostrongylus abstrusus is the most important respiratory parasite of domestic cats. Pulmonary aelurostrongylosis has been reported in wild felids, though unequivocally evidence of wildlife infection by A. abstrusus is scant. Recently, Troglostrongylus brevior, a lungworm usually infecting wild felids, has been described in domestic cats from Mediterranean areas. The present work evaluates the sequence variation of an informative region within the gene encoding the mitochondrial cytochrome c oxidase subunit 1 of A...
February 14, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28190156/update-on-acanthamoeba-jacobsi-genotype-t15-including-full-length-18s-rdna-molecular-phylogeny
#9
Daniele Corsaro, Martina Köhsler, Margherita Montalbano Di Filippo, Danielle Venditti, Rosa Monno, David Di Cave, Federica Berrilli, Julia Walochnik
Free-living amoebae of the genus Acanthamoeba are worldwide present in natural and artificial environments, and are also clinically important, as causative agents of diseases in humans and other animals. Acanthamoeba comprises several species, historically assigned to one of the three groups based on their cyst morphology, but presently recognized as at least 20 genotypes (T1-T20) on the basis of their nuclear 18S ribosomal RNA (rRNA) gene (18S rDNA) sequences. While strain identification may usually be achieved targeting short (<500 bp) 18S ribosomal DNA (rDNA) fragments, the use of full-length gene sequences (>2200 bp) is necessary for correct genotype description and reliable molecular phylogenetic inference...
February 11, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28190155/treatment-against-coccidiosis-in-norwegian-lambs-and-potential-risk-factors-for-development-of-anticoccidial-resistance-a-questionnaire-based-study
#10
Ane Odden, Heidi L Enemark, Lucy J Robertson, Antonio Ruiz, Lisbeth Hektoen, Snorre Stuen
The objectives of this study were to investigate the use of anticoccidials in Norwegian sheep flocks and identify farms with management procedures likely to select for drug resistance. Data were obtained by a questionnaire sent to all members of the Norwegian Sheep Recording System in October 2015. The data set consisted of 1215 answers, corresponding to 8.5% of Norwegian sheep flocks. Anticoccidials were used in 82.7% of flocks. Main treatment was at turnout (38.6% of treated flocks) or 1 week after turnout (32...
February 11, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28185057/the-dynamic-changes-of-cd3e-cd11c-dendritic-cells-in-spleens-and-bone-marrow-of-mice-infected-with-schistosoma-japonicum
#11
Lin Chen, Qingzhou Chen, Wei Hou, Li He
Schistosoma japonicum as a pathogeny requires dendritic cells to activate immune response. So, the research is to study the dynamic changes of CD3e(-)CD11c(+) dendritic cells in mice infected with S. japonicum. Zero, 7, 28, 35, and 63 days were selected to study the variation of dendritic cells, and the proportions of CD3e(-)CD11c(+) dendritic cells and CD86(+) mature dendritic cells in spleens and bone marrow were tested by flow cytometry. As a result, the variation trends of dendritic cells in spleen and bone marrow are similar as follows: the proportions of CD3e(-)CD11c(+) dendritic cells increased first and then decreased from day 35, but the percentages of CD86(+) mature dendritic cells decreased from day 28 and increased in day 63...
February 10, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28168560/larvicidal-activity-of-blumea-eriantha-essential-oil-and-its-components-against-six-mosquito-species-including-zika-virus-vectors-the-promising-potential-of-4e-6z-allo-ocimene-carvotanacetone-and-dodecyl-acetate
#12
Giovanni Benelli, Marimuthu Govindarajan, Mohan Rajeswary, Sengamalai Senthilmurugan, Periasamy Vijayan, Naiyf S Alharbi, Shine Kadaikunnan, Jamal M Khaled
The effective and environmentally sustainable control of mosquitoes is a challenge of essential importance. This is due to the fact that some invasive mosquitoes, with special reference to the Aedes genus, are particularly difficult to control, due to their high ecological plasticity. Moreover, the indiscriminate overuse of synthetic insecticides resulted in undesirable effects on human health and non-target organisms, as well as resistance development in targeted vectors. Here, the leaf essential oil (EO) extracted from a scarcely studied plant of ethno-medicinal interest, Blumea eriantha (Asteraceae), was tested on the larvae of six mosquitoes, including Zika virus vectors...
February 6, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28160075/redescription-of-babesia-ardeae-toumanoff-1940-a-parasite-of-ardeidae-including-molecular-characterization
#13
J -M Chavatte, C Okumura, I Landau
Among the actual 16 identified and thought to be valid avian piroplasm species, certain parasites are only known from their original description with no subsequent report. Babesia ardeae Toumanoff, 1940 is one of them. It was described from a single sacrificed gray heron (Ardea cinerea) from Vietnam and had never been reported since this date despite inhabiting a very common avian host. The present study reports the accidental rediscovery of B. ardeae from an injured wild gray heron rescued in Singapore. This report confirms the existence of this parasite species in the gray heron from Southeast Asia, highlights the similarities with the original description, provides additional morphologic and morphometric data, and designates neotype material for B...
February 3, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28160074/parasitism-and-inflammation-in-ear-skin-and-in-genital-tissues-of-symptomatic-and-asymptomatic-male-dogs-with-visceral-leishmaniasis
#14
C G Carvalho Junior, R G Teixeira Neto, V V Lopes, V S Belo, N R Alves, T B de Paula, R I M A Ribeiro, E S Silva
Canine visceral leishmaniasis (CVL) is transmitted through vector, although venereal transmission has been suggested. This study aimed to compare the parasitic loads and inflammatory processes in genital tissues with ear skin from seropositive male dogs. Forty-five seropositive dogs were separated into groups containing symptomatic (n = 23) and asymptomatic (n = 22) animals. The control group (n = 2) healthy animals with seronegative and negative results in direct parasitological test. Samples of ear tip skin, prepuce, glans penis, testis, epididymis, and prostate were collected for evaluation of parasitic load and inflammatory infiltrate...
February 3, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28160073/genistein-improves-schistosomiasis-liver-granuloma-and-fibrosis-via-dampening-nf-kb-signaling-in-mice
#15
Chunpeng Wan, Fen Jin, Youqin Du, Kang Yang, Liangliang Yao, Zhigang Mei, Weifeng Huang
In schistosomiasis, egg deposition in the liver contributes to the formation of hepatic granuloma and fibrosis, which are the most serious clinical pathological features. It has been proposed that activation of the nuclear factor kappa B (NF-κB) signaling pathways is closely associated with the development of hepatic granuloma and fibrosis. Genistein has been shown to inhibit the activity of NF-κB signaling pathways, which might be a potential agent to protect against Schistosoma japonicum egg-induced liver granuloma and fibrosis...
February 3, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28155106/flammability-testing-of-22-conventional-european-pediculicides
#16
Dorian D Dörge, Thomas Kuhn, Sven Klimpel
Lice have been parasitizing humans for at least 10,000 years. Since then, humans have tried to rid themselves of these unpleasant and potentially disease-carrying insects. Despite various plant extracts and chemical compounds being used to combat recurring infestations to this date, several lice populations have developed resistance to some of the abundantly used compounds. This resulted in the development of anti-louse products that physically kill the different lice stages. Today, a widely used group of delousing agents are dimethicones (polydimethylsiloxane PDMS) which function by suffocating the lice...
February 2, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28155105/toxocara-vitulorum-infection-in-german-beef-cattle
#17
Peter L Venjakob, Gerhard Thiele, Peter-Henning Clausen, Ard M Nijhof
Toxocara vitulorum is an ascarid that is frequently found in sub-tropical regions but little is known about infections in more temperate climates. In this study, we report the occurrence of this parasite in a beef cattle herd in eastern Germany. In June 2016, large (14-20 cm) cream-colored worms identified as adult T. vitulorum were observed in the feces of 2- to 3-month-old calves. Eggs of this parasite were subsequently detected in pooled fecal samples collected on all three farm sites. The morphological identification was supported by analysis of partial cytochrome c oxidase I and internal transcribed spacer 1 gene sequences...
February 2, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28150041/evaluation-of-a-hypothetical-protein-for-serodiagnosis-and-as-a-potential-marker-for-post-treatment-serological-evaluation-of-tegumentary-leishmaniasis-patients
#18
Mariana Pedrosa Lima, Lourena Emanuele Costa, Mariana Costa Duarte, Daniel Menezes-Souza, Beatriz Cristina Silveira Salles, Thaís Teodoro de Oliveira Santos, Fernanda Fonseca Ramos, Miguel Angel Chávez-Fumagalli, Amanda Christine Silva Kursancew, Roberta Passamani Ambrósio, Bruno Mendes Roatt, Ricardo Andrez Machado-de-Ávila, Denise Utsch Gonçalves, Eduardo Antonio Ferraz Coelho
The serodiagnosis for tegumentary leishmaniasis (TL) presents problems related to the sensitivity and/or specificity of the tests. In the present study, an enzyme-linked immunosorbent assay (ELISA) technique was used to evaluate the performance from a Leishmania braziliensis hypothetical protein, LbHyM, in an attempt to compare its serological reactivity with a soluble Leishmania antigenic preparation (SLA) for the serodiagnosis of cutaneous (CL) and mucosal (ML) leishmaniasis. LbHyM was predicted to be a kinesin-like protein by bioinformatics tools...
February 1, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28130658/high-seroprevalence-of-toxoplasma-gondii-in-elk-cervus-canadensis-of-the-central-appalachians-usa
#19
John J Cox, Brittany Slabach, John T Hast, Sean M Murphy, Oliver C H Kwok, Jitender P Dubey
Toxoplasma gondii is an important protozoan parasite of mammals that impacts animal health and behavior. Although this parasite has been documented in several cervid species, including red deer (Cervus elaphus) in Europe, little is known about T. gondii impacts on the closely related North American counterpart, the elk (wapiti, Cervus canadensis), which has increased in number and expanded in range during the past century. We assessed seroprevalence of T. gondii antibodies using a modified agglutination test (MAT) (1:25 titer) and blood collected from 142 free-ranging elk in Kentucky, USA, where the species was reintroduced during 1997-2002 after over a century of absence...
January 27, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28130657/erratum-to-mitochondrial-pathways-are-involved-in-eimeria-tenella-induced-apoptosis-of-chick-embryo-cecal-epithelial-cells
#20
Shan Li, Ming-Xue Zheng, Huan-Cheng Xu, Xiao-Zhen Cui, Yan Zhang, Li Zhang, Sha-Sha Yang, Zhi-Yong Xu, Rui Bai, Xu-Guang Sun
No abstract text is available yet for this article.
January 27, 2017: Parasitology Research
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