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https://www.readbyqxmd.com/read/28331385/annotated-checklist-of-fish-cestodes-from-south-america
#1
Philippe V Alves, Alain de Chambrier, Tomáš Scholz, José L Luque
An exhaustive literature search supplemented by a critical examination of records made it possible to present an annotated checklist of tapeworms (Cestoda) that, as adults or larvae (metacestodes), parasitize freshwater, brackish water and marine fishes, i.e. cartilaginous and bony fishes, in South America. The current knowledge of their species diversity, host associations and geographical distribution is reviewed. Taxonomic problems are discussed based on a critical evaluation of the literature and information on DNA sequences of individual taxa is provided to facilitate future taxonomic and phylogenetic studies...
2017: ZooKeys
https://www.readbyqxmd.com/read/28330806/a-fish-model-for-the-study-of-the-relationship-between-neuroendocrine-and-immune-cells-in-the-intestinal-epithelium-silurus-glanis-infected-with-a-tapeworm
#2
B S Dezfuli, J A DePasquale, G Castaldelli, L Giari, G Bosi
Immunohistochemical, immunofluorescence and ultrastructural studies were conducted on a sub-population of 20 wels catfish Silurus glanis from a tributary of the River Po (Northern Italy). Fish were examined for the presence of ecto- and endo-parasites; in the intestine of 5 fish, 11 specimens of cestode Glanitaenia osculata were noted and was the only helminth species encountered. The architecture of intestine and its cellular features were nearly identical in either the uninfected S. glanis or in those harboring G...
March 18, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28328597/clinical-manifestation-of-a-patient-with-forehead-sparganosis
#3
Soung Min Kim, Emmanuel Kofi Amponsah, Mi Young Eo, Yun Ju Cho, Suk Keun Lee
Human sparganosis is a parasite infection caused by the larva of a tapeworm of the genus Spirometra. Ocular, central nervous system, auricular, pulmonary, intraosseous, intraperitoneal, and subcutaneous manifestations of this infection in the neck or inguinal region have been described.The authors report the rare occurrence of cutaneous forehead sparganosis of a 19-year-old male who presented with a soft subcutaneous mass in the forehead, along with a related literature review.
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28322743/an-experimental-approach-to-the-immuno-modulatory-basis-of-host-parasite-local-adaptation-in-tapeworm-infected-sticklebacks
#4
Madeleine Hamley, Frederik Franke, Joachim Kurtz, Jörn Peter Scharsack
The evolutionary arms race of hosts and parasites often results in adaptations, which may differ between populations. Investigation of such local adaptation becomes increasingly important to understand dynamics of host-parasite interactions and co-evolution. To this end we performed an infection experiment involving pairs of three-spined sticklebacks and their tapeworm parasite Schistocephalus solidus from three geographically separated origins (Germany, Spain and Iceland) in a fully-crossed design for sympatric and allopatric host/parasite combinations...
March 18, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28322697/molecular-identification-of-spirometra-erinaceieuropaei-tapeworm-in-cases-of-human-sparganosis-hong-kong
#5
Tommy H C Tang, Samson S Y Wong, Christopher K C Lai, Rosana W S Poon, Helen S Y Chan, Tak Chiu Wu, Yuk-Fai Cheung, Tak-Lap Poon, Yi-Po Tsang, Wai-Lun Tang, Alan K L Wu
Human sparganosis is a foodborne zoonosis endemic in Asia. We report a series of 9 histologically confirmed human sparganosis cases in Hong Kong, China. All parasites were retrospectively identified as Spirometra erinaceieuropaei. Skin and soft tissue swelling was the most common symptom, followed by central nervous system lesions.
April 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28318631/the-antihelmenthic-phosphate-niclosamide-impedes-renal-fibrosis-by-inhibiting-homeodomain-interacting-protein-kinase-2-expression
#6
Xiaoyan Chang, Xin Zhen, Jixing Liu, Xiaomei Ren, Zheng Hu, Zhanmei Zhou, Fengxin Zhu, Ke Ding, Jing Nie
Renal fibrosis is the final common pathway of all varieties of progressive chronic kidney disease. However, there are no effective therapies to prevent or slow the progression of renal fibrosis. Niclosamide is a US Food and Drug Administration-approved oral antihelminthic drug used for treating most tapeworm infections. Here, we demonstrated that phosphate niclosamide, the water-soluble form of niclosamide, significantly reduced proteinuria, glomerulosclrotic lesions, and interstitial fibrosis in a murine model of adriamycin nephropathy...
March 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28317492/monoclonal-antibodies-production-against-a-40kda-band-of-hydatid-cyst-fluid
#7
Hossein Yousofi Darani, Behroz Ataei, Seyedeh Maryam Sharafi, Hedayat Shirzad
BACKGROUND AND OBJECTIVES: Hydatid cyst is the larval stage of the tapeworm Echinococcus granulosus. Hydatid cyst fluid, cyst membrane and Protoscolices, contain a complex mixture of antigens that can induce immune responses in the host. Anti-cancer properties of Protoscolices and hydatid cyst fluid has been shown. In order to identify antigens of hydatid cyst fluid that have anti-cancer effect, in this study production of monoclonal antibodies against one of the hydatid cyst fluid band (40KDa) has been investigated...
March 17, 2017: Recent Patents on Biotechnology
https://www.readbyqxmd.com/read/28316400/antigen-based-detection-of-cystic-echinococcosis-in-buffaloes-using-elisa-and-dot-eia
#8
A Sangaran, S T Bino Sundar, Bhaskaran Ravi Latha
Cystic echinococcosis is caused by the larval stage of the dog tapeworm, Echinococcus granulosus. The disease is recognized as one of the world's major zoonoses affecting human beings and domestic animals apart from its economic and public health importance. Development of the cysts in the intermediate host such as buffaloes occurs in the lungs, liver and other organs. In this study, detection of circulating antigen in the diagnosis of cystic echinococcosis in buffaloes was done using enzyme linked immunosorbent assay and Dot-Enzyme immunoassay (Dot-EIA)...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28290612/immunohistochemical-localization-of-sex-hormone-receptors-in-two-raillietina-tapeworms
#9
L Chen, Y M Sun, L Mu, Y Zeng, H Y Li, T H Yang
Sex hormone receptors play critical roles in development and reproduction. However, it is not known whether they exist in Raillietina tapeworms, and if they do, whether they have a similar function to that in vertebrates. We examined the immunohistochemical distributions of androgen receptors (ARs), estrogen receptors (ERs), and progesterone receptors (PRs) in the tissues of two tapeworm species: Raillietina echinobothrida and Raillietina tetragona. Immunopositive ARs were found in the entire reproductive system of R...
March 8, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28285508/a-case-of-taenia-asiatica-infection-diagnosed-by-colonoscopy
#10
Heung Up Kim, Young-Bae Chung
A case of Taenia asiatica infection detected by small bowel series and colonoscopy is described. The patient was a 42-year-old Korean man accompanied by discharge of movable proglottids via anus. He used to eat raw pig liver but seldom ate beef. Small bowel series radiologic examinations showed flat tape-like filling defects on the ileum. By colonoscopy, a moving flat tapeworm was observed from the terminal ileum to the ascending colon. The tapeworm was identified as T. asiatica by mitochondrial DNA sequencing...
February 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28285500/a-human-case-of-zoonotic-dog-tapeworm-dipylidium-caninum-eucestoda-dilepidiidae-in-china
#11
Peng Jiang, Xi Zhang, Ruo Dan Liu, Zhong Quan Wang, Jing Cui
We described a human case of zoonotic dog tapeworm, Dipylidium caninum (Eucestoda: Dilepidiidae), rarely occurring in China. The mother of a 17 month-old boy noted the appearance of small white and active worms over a month period in her son's feces, but the boy was asymptomatic except mild diarrhea. We observed 3 tapeworm proglottids resembling cucumber seeds in his stool sample. Microscopically, each proglottid had 2 genital pores, 1 on each lateral edge, and numerous egg capsules in the uterus. The patient was successfully treated with a single oral dose of praziquantel...
February 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28284223/genetic-diversity-of-taenia-saginata-cestoda-cyclophyllidea-from-lao-people-s-democratic-republic-and-northeastern-thailand-based-on-mitochondrial-dna
#12
Oranuch Sanpool, Rutchanee Rodpai, Pewpan M Intapan, Lakkhana Sadaow, Tongjit Thanchomnang, Sakhone Laymanivong, Wanchai Maleewong, Hiroshi Yamasaki
BACKGROUND: Taenia saginata is a tapeworm found in cattle worldwide. Analysis of genetic diversity in different geographical populations of T. saginata not only helps to understand the origin, transmission and spread of this organism, but also to evaluate the selection pressures acting on T. saginata and how it is responding to them. However, there are few reports of the genetic variability of T. saginata populations in different regions of the world, including Lao PDR and Thailand. We report the genetic diversity of T...
March 11, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28270244/expression-profiling-of-circulating-mirnas-in-mouse-serum-in-response-to-echinococcus-multilocularis-infection
#13
Xiaola Guo, Yadong Zheng
Echinococcus multilocularis is a most pathogenic zoonotic tapeworm that causes devastating echinococcosis in both humans and animals. Circulating microRNAs (miRNAs) are stably existed in the serum/plasma of mammalian hosts during helminthic infection. In this study, we compared the host-circulating miRNA expression in the sera from the E. multilocularis-infected and uninfected mice. A total of 58 host-origin serum miRNAs were differentially expressed (2 ⩾ fold change, P < 0·05), of which 21 were upregulated and 37 were significantly downregulated...
March 8, 2017: Parasitology
https://www.readbyqxmd.com/read/28265273/new-data-on-human-macrophages-polarization-by-hymenolepis-diminuta-tapeworm-an-in-vitro-study
#14
Anna Zawistowska-Deniziak, Katarzyna Basałaj, Barbara Strojny, Daniel Młocicki
Helminths and their products can suppress the host immune response to escape host defense mechanisms and establish chronic infections. Current studies indicate that macrophages play a key role in the immune response to pathogen invasion. They can be polarized into two distinct phenotypes: M1 and M2. The present paper examines the impact of the adult Hymenolepis diminuta (HD) tapeworm and its excretory/secretory products (ESP) on THP-1 macrophages. Monocytes were differentiated into macrophages and cultured with a living parasite or its ESP...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28257950/redescription-and-molecular-characterization-of-anoplocephala-manubriata-railliet-et-al-1914-cestoda-anoplocephalidae-from-a-sri-lankan-wild-elephant-elephas-maximus
#15
K U E Perera, Susiji Wickramasinghe, B V P Perera, K B A T Bandara, R P V J Rajapakse
The present work provides a detailed morphological and molecular description of Anoplocephala manubriata in elephants. Adult worms were recovered during an autopsy of a wild elephant in Elephant Transit Home, Udawalawe, Sri Lanka. Necropsy findings revealed a severe cestode infection in the small intestine. These tapeworms were tightly attached to the intestinal mucosae, resulted in hyperemic thickened intestinal mucosae, variable size irregular well-demarcated multifocal ulcerative regions sometimes covered with necrotic membranes and variable size, diffuse, well-demarcated raised nodular masses were evident in the small intestine...
February 28, 2017: Parasitology International
https://www.readbyqxmd.com/read/28249768/simulating-control-of-a-focal-wildlife-outbreak-of-echinococcus-multilocularis
#16
Richard Budgey, Jane Learmount, Graham C Smith
The parasitic tapeworm Echinococcus multilocularis is the causative agent of alveolar echinococcosis, a serious zoonotic infection present in Europe that can be fatal. The United Kingdom currently has E. multilocularis free status but the possibility of introduction exists, most likely via an imported or returning dog or other deliberately introduced animal that has not had anthelmintic treatment. We have developed a model to predict the probability of successfully eliminating a focal outbreak of E. multilocularis using a programme of anthelmintic bait distribution...
February 21, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28246374/a-new-genus-with-two-new-species-of-lecanicephalidean-tapeworms-cestoda-from-the-mangrove-whipray-urogymnus-granulatus-myliobatiformes-dasyatidae-from-the-solomon-islands-and-northern-australia
#17
Kaylee S Herzog, Kirsten Jensen
A new lecanicephalidean genus is erected for cestodes previously recognised as "New Genus 12" (Polypocephalidae) in a phylogenetic analysis of the interrelationship of members of this order. Examination of the cestode fauna of the mangrove whipray, Urogymnus granulatus (Macleay) (Myliobatiformes: Dasyatidae) from the Solomon Islands and northern Australia revealed the existence of specimens representing two new species, consistent in morphology with "New Genus 12." Corollapex gen. n. is unique among the 24 valid lecanicephalidean genera in its possession of an apical organ in the form of an external retractable central disk surrounded by eight concave muscular, membrane-bound pads and an internal heterogeneous glandular component...
February 6, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28242354/virulence-in-the-three-spined-stickleback-specific-parasite-schistocephalus-solidus-is-inherited-additively
#18
Marc Ritter, Martin Kalbe, Tina Henrich
Parasite virulence is a key trait in host-parasite interactions and plays a crucial role in infection dynamics. Our study system offers the rare opportunity to study the virulence of an individual macroparasite (Schistocephalus solidus) in its vertebrate fish host (Gasterosteus aculeatus). The size of the tapeworm in the fish can be regarded as a good proxy for individual parasite virulence, as parasite size correlates negatively with fitness traits of the stickleback host (i.e. the bigger the parasite, the lower the host's reproductive success) as well as directly with the number of parasite offspring to be expected...
February 24, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28241017/egf-mediated-egfr-erk-signaling-pathway-promotes-germinative-cell-proliferation-in-echinococcus-multilocularis-that-contributes-to-larval-growth-and-development
#19
Zhe Cheng, Fan Liu, Xiu Li, Mengya Dai, Jianjian Wu, Xinrui Guo, Huimin Tian, Zhijie Heng, Ying Lu, Xiaoli Chai, Yanhai Wang
BACKGROUND: Larvae of the tapeworm E. multilocularis cause alveolar echinococcosis (AE), one of the most lethal helminthic infections in humans. A population of stem cell-like cells, the germinative cells, is considered to drive the larval growth and development within the host. The molecular mechanisms controlling the behavior of germinative cells are largely unknown. METHODOLOGY/PRINCIPAL FINDINGS: Using in vitro cultivation systems we show here that the EGFR/ERK signaling in the parasite can promote germinative cell proliferation in response to addition of human EGF, resulting in stimulated growth and development of the metacestode larvae...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28218769/new-world-s-old-disease-cardiac-hydatid-disease-and-surgical-principles
#20
Omer Tanyeli, Yuksel Dereli, Ilker Mercan, Niyazi Gormus, Tahir Yuksek
BACKGROUND: Hydatid cyst is a parasitic disease caused by infection with the Echinococcus granulosus tapeworm larva. It is a major public health problem in endemic regions. Cardiac involvement of the disease is rare. METHODS: Between 1985 and 2015, 12 patients were admitted to our clinic with a possible diagnosis of cardiac hydatid disease. Of these patients, six (50%) were male and six (50%) were female. Mean age of the patients was 42.6 years. RESULTS: The most common location of cardiac hydatid disease was left sided (six patients, 50%)...
February 20, 2017: Cardiovascular Journal of Africa
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