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https://www.readbyqxmd.com/read/28935004/intestinal-parasites-and-anthelmintic-treatments-in-a-laboratory-colony-of-wild-caught-african-pouched-rats-cricetomys-ansorgei
#1
Cassandra O Cullin, Matthew S Sellers, Erin R Rogers, Kathleen E Scott, Danielle N Lee, Alexander G Ophir, Todd A Jackson
African giant pouched rats (Cricetomys spp.) are large rodents native to subSaharan Africa. Wild-caught pouched rats identified as Cricetomys ansorgei (n = 49) were imported from Tanzania. A survey of gastrointestinal parasitism by fecal flotation revealed the presence of multiple parasites, including Nippostrongylus spp., Heterakis spp., Trichuris spp., Hymenolepis spp., Raillietina spp., and Eimeria spp. Oral self-administered fenbendazole (150 ppm), topical moxidectin (2 mg/kg), pyrantel pamoate (15 mg/kg), piperazine (100 mg/kg daily), and injectable ivermectin (0...
October 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28924741/spectrum-of-infectious-diseases-among-newly-arrived-eritrean-refugees-in-switzerland-a-cross-sectional-study
#2
Afona Chernet, Andreas Neumayr, Christoph Hatz, Kerstin Kling, Véronique Sydow, Katharina Rentsch, Jürg Utzinger, Nicole Probst-Hensch, Hanspeter Marti, Beatrice Nickel, Niklaus D Labhardt
OBJECTIVES: Our study aimed at determining the prevalence of selected infectious diseases among recently arrived Eritrean refugees in Switzerland. METHODS: In this cross-sectional study, asymptomatic Eritrean migrants aged ≥16 years who arrived <24 months ago were recruited at refugee centres in Switzerland. Infectious disease screening included serology for HIV, hepatitis B and C, syphilis and schistosomiasis, polymerase chain reaction (PCR) for malaria, stool microscopy for helminths and intestinal protozoa and circulating cathodic antigen (CCA) testing in urine for schistosomiasis...
September 19, 2017: International Journal of Public Health
https://www.readbyqxmd.com/read/28892562/triggering-immunological-memory-against-the-tapeworm-hymenolepis-diminuta-to-protect-against-colitis
#3
Arthur Wang, Toshio Arai, Alec Campbell, Jose Luis Reyes, Fernando Lopes, Derek M McKay
Infection with parasitic helminths can ameliorate the severity of concomitant inflammatory disease. AIM: To use the tapeworm, Hymenolepis diminuta, to extend this concept by assessing if triggering a memory response against the worm inhibits dinitrobenzene sulphonic acid (DNBS)-induced colitis in Balb/c mice. METHODS & RESULTS: Initial studies revealed that oral infection with 1, 3 or 5 H. diminuta cysticercoids 8 days before intra-rectal administration of DNBS (3 mg) resulted in less severe inflammation and that infected mice displayed an increased propensity for T helper-2 immunity...
September 11, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28866987/helminth-composition-and-prevalence-of-indigenous-and-invasive-synanthropic-murid-rodents-in-urban-areas-of-gauteng-province-south-africa
#4
R S Julius, E V Schwan, C T Chimimba
Although synanthropic rodents such as the indigenous species, Mastomys coucha, and the invasive species, Rattus norvegicus, R. rattus and R. tanezumi, are well-known to be hosts to various micro- and macroparasites, their helminth parasite fauna is poorly studied in South Africa. In an attempt to remedy the situation, the aim of the present study was to investigate the helminth fauna of these sympatric rodent species, which were obtained from the informal settlements of Alexandra, Tembisa, Diepsloot and residential suburbs of Pretoria and Hammanskraal, Gauteng Province, South Africa...
September 4, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28829724/prevalence-age-profile-and-associated-risk-factors-for-hymenolepis-nana-infection-in-a-large-population-based-study-in-northern-peru
#5
COMPARATIVE STUDY
Percy M Vilchez Barreto, Ricardo Gamboa, Saul Santivañez, Seth E O'Neal, Claudio Muro, Andrés G Lescano, Luz-Maria Moyano, Guillermo Gonzálvez, Hector H García, For The Cysticercosis Working Group In Perú Cwgp
Hymenolepis nana, the dwarf tapeworm, is a common intestinal infection of children worldwide. We evaluated infection and risk factor data that were previously collected from 14,761 children aged 2-15 years during a large-scale program in northern Peru. We found that 1,124 of 14,761 children (7.61%) had H. nana infection, a likely underestimate given that only a single stool sample was examined by microscopy for diagnosis. The strongest association with infection was lack of adequate water (adjusted prevalence ratio [aPR] 2...
August 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820707/prevalence-of-strongyloides-stercoralis-and-other-intestinal-parasite-infections-in-school-children-in-a-rural-area-of-angola-a-cross-sectional-study
#6
María Luisa Ruíz de Alegría Aznar, Karen Colmenares, Mateu Espasa, Arancha Amor, Isabel Lopez, Arlette Ninda, Joaquina Kanjala, Domingas Guilherme, Elena Sulleiro, Begoña Barriga, Eva Gil, Fernando Salvador, Cristina Bocanegra, Teresa López, Milagros Moreno, Israel Molina
Strongyloides stercoralis is widely distributed in the tropics and subtropics. The aim of this study was to determine the prevalence of S. stercoralis and other intestinal parasites and identify the risk factors for infection with S. stercoralis in a rural area of Angola. A cross-sectional study was conducted in school-age children (SAC) in Cubal, Angola. A questionnaire collecting clinical and epidemiological variables was used, and two stool samples were collected. A concentration technique (Ritchie) and a technique for detection of larvae migration (Baermann) were performed...
July 31, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28808619/gastrointestinal-parasites-in-captive-and-free-ranging-cebus-albifrons-in-the-western-amazon-ecuador
#7
Sarah Martin-Solano, Gabriel A Carrillo-Bilbao, William Ramirez, Maritza Celi-Erazo, Marie-Claude Huynen, Bruno Levecke, Washington Benitez-Ortiz, Bertrand Losson
Currently, there is a lack of surveys that report the occurrence of gastrointestinal parasites in the white-headed capuchin monkey (Cebus albifrons). We therefore assessed the presence and richness (= number of different parasite genera) of parasites in C. albifrons in wildlife refuges (n = 11) and in a free-ranging group near a human village (n = 15) in the Ecuadorian Amazon. In the 78 samples collected (median of 3 samples per animal), we identified a total of 6 genera of gastrointestinal parasites, representing protozoa, nematodes, acanthocephalans and cestodes...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28797540/efficiency-of-two-sewage-treatment-systems-activated-sludge-and-natural-lagoons-for-helminth-egg-removal-in-morocco
#8
Sana Chaoua, Samia Boussaa, Ahmed Khadra, Ali Boumezzough
Morocco is a country known for its vulnerability of water resources because of its arid and semi-arid climate. Thus, recycled wastewater has been suggested for agricultural activities, but contamination of these wastewaters is a major concern. The current study aims to determine the occurrence of helminth eggs in urban wastewater and to evaluate the removal of these pathogens by two sewage treatment systems: activated sludge and natural lagoons. The samples of wastewater and sludge were collected from two wastewater treatment plants (WWTP) located in Marrakech and Chichaoua, Morocco...
August 7, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28771620/a-benign-helminth-alters-the-host-immune-system-and-the-gut-microbiota-in-a-rat-model-system
#9
Laura Wegener Parfrey, Milan Jirků, Radek Šíma, Marie Jalovecká, Bohumil Sak, Karina Grigore, Kateřina Jirků Pomajbíková
Helminths and bacteria are major players in the mammalian gut ecosystem and each influences the host immune system and health. Declines in helminth prevalence and bacterial diversity appear to play a role in the dramatic rise of immune mediated inflammatory diseases (IMIDs) in western populations. Helminths are potent modulators of immune system and their reintroduction is a promising therapeutic avenue for IMIDs. However, the introduction of helminths represents a disturbance for the host and it is important to understand the impact of helminth reintroduction on the host, including the immune system and gut microbiome...
2017: PloS One
https://www.readbyqxmd.com/read/28761488/intestinal-helminths-in-different-species-of-rodents-in-north-khorasan-province-northeast-of-iran
#10
Kourosh Arzamani, Mitra Salehi, Iraj Mobedi, Amir Adinezade, Hamid Hasanpour, Mohammad Alavinia, Jamshid Darvish, Mohammad Reza Shirzadi, Zeinolabedin Mohammadi
BACKGROUND: Rodents are an important source of zoonotic diseases for human. The aim of this study was to determine the infectivity of rodents with intestinal helminths in North Khorasan Province, Iran. METHODS: One hundred and thirteen rodents were collected using different collection methods such as kill and live traps, digging of their burrow, filling of their hiding places with water and hand net during 2011-2013. Their alimentary canals were removed in the laboratory and helminths were determined in the department of parasitology, Tehran University of Medical Sciences...
April 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28719963/prevalence-of-hymenolepis-nana-and-h-diminuta-from-brown-rats-rattus-norvegicus-in-heilongjiang-province-china
#11
Di Yang, Wei Zhao, Yichi Zhang, Aiqin Liu
Hymenolepis nana and Hymenolepis diminuta are globally widespread zoonotic cestodes. Rodents are the main reservoir host of these cestodes. Brown rats (Rattus norvegicus) are the best known and most common rats, and usually live wherever humans live, especially in less than desirable hygiene conditions. Due to the little information of the 2 hymenolepidid species in brown rats in China, the aim of this study was to understand the prevalence and genetic characterization of H. nana and H. diminuta in brown rats in Heilongjiang Province, China...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28719332/case-report-a-symptomatic-case-of-hymenolepis-diminuta-infection-in-an-urban-dwelling-adult-in-malaysia
#12
Arine Fadzlun Ahmad, Romano Ngui, Jaxinthe Ong, Farikha Sarip, Wan Hafiz Wan Ismail, Hasidah Omar, Zurainee Mohamed Nor, Amirah Amir, Yvonne A L Lim, Rohela Mahmud
A case of Hymenolepis diminuta infection in a 43-year-old Malaysian male with persistent abdominal colicky pain is reported. Endoscopy revealed whitish worms in the lumen of the small intestine, which were identified as H. diminuta after microscopy. Patient was successfully treated with a single dose of praziquantel (25 mg/kg).
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28693632/longitudinal-study-of-parasite-induced-mortality-of-a-long-lived-host-the-importance-of-exposure-to-non-parasitic-stressors
#13
Hilary M-H Chin, Lien T Luong, Allen W Shostak
Hosts face mortality from parasitic and environmental stressors, but interactions of parasitism with other stressors are not well understood, particularly for long-lived hosts. We monitored survival of flour beetles (Tribolium confusum) in a longitudinal design incorporating cestode (Hymenolepis diminuta) infection, starvation and exposure to the pesticide diatomaceous earth (DE). We found that cestode cysticercoids exhibit increasing morphological damage and decreasing ability to excyst over time, but were never eliminated from the host...
July 11, 2017: Parasitology
https://www.readbyqxmd.com/read/28689507/a-survey-of-zoonotic-pathogens-carried-by-house-mouse-and-black-rat-populations-in-yucatan-mexico
#14
J A Panti-May, R R C DE Andrade, Y Gurubel-González, E Palomo-Arjona, L Sodá-Tamayo, J Meza-Sulú, M Ramírez-Sierra, E Dumonteil, V M Vidal-Martínez, C Machaín-Williams, D DE Oliveira, M G Reis, M A Torres-Castro, M R Robles, S F Hernández-Betancourt, F Costa
The house mouse (Mus musculus) and the black rat (Rattus rattus) are reservoir hosts for zoonotic pathogens, several of which cause neglected tropical diseases (NTDs). Studies of the prevalence of these NTD-causing zoonotic pathogens, in house mice and black rats from tropical residential areas are scarce. Three hundred and two house mice and 161 black rats were trapped in 2013 from two urban neighbourhoods and a rural village in Yucatan, Mexico, and subsequently tested for Trypanosoma cruzi, Hymenolepis diminuta and Leptospira interrogans...
August 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28664463/therapeutic-potential-of-helminths-in-autoimmune-diseases-helminth-derived-immune-regulators-and-immune-balance
#15
REVIEW
Meng Wang, Linxiang Wu, Rennan Weng, Weihong Zheng, Zhongdao Wu, Zhiyue Lv
Helminths have accompanied human throughout history by releasing immune-evasion molecules that could counteract an aberrant immune response within the host. In the past decades, helminth infections are becoming less prevalent possibly due to the developed sanitation. Meanwhile, the incidence of autoimmune diseases is increasing, which cannot be exclusively explained by the changes of susceptibility genes. While the hygiene hypothesis casts light on the problem. The infections of helminths are believed to interact with and regulate human immunity with the byproduct of suppressing the autoimmune diseases...
August 2017: Parasitology Research
https://www.readbyqxmd.com/read/28646696/occurrence-of-the-most-common-helminth-infections-among-children-in-the-eastern-slovak-republic
#16
Jana Pipiková, Ingrid Papajová, Jindřich Šoltys, Ingrid Schusterová
OBJECTIVES: Ascariasis, trichuriasis and hymenolepiasis occur primarily within poor communities with low hygiene standards. This study examined the occurrence of intestinal helminth infections among children living in two counties (Košice and Prešov) in the Eastern Slovak Republic. STUDY DESIGN: Four hundred and twenty-six children were divided into groups according to ethnicity (non-Roma and Roma), age, sex, urban/rural residency and county of residence. METHODS: Stool samples collected from participants were processed by formalin-ethyl acetate sedimentation and examined microscopically...
September 2017: Public Health
https://www.readbyqxmd.com/read/28615890/helminth-fauna-of-the-northern-white-breasted-hedgehog-erinaceus-roumanicus-in-serbia
#17
I Pavlović, B Savić
The result of helminthological examination of 28 hedgehogs died at traffic accident and 12 samples of feces collected from pets hedgehogs during 2013-2015 were presented. Three species of helminths were found: Crenosoma striatum, Hymenolepis erinacei and Aonchotheca erinacei. This is the first research of parasitic fauna of hedgehogs in Serbia.
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28615852/therapecutic-efficacy-of-the-leaf-extract-of-croton-joufra-roxb-against-experimental-cestodiasis-in-rats
#18
Shyamalima Gogoi, Arun K Yadav
The leaves of Croton joufra have been used as a traditional medicine in Assam (Northeast India) to treat the intestinal helminthic infections. The aim of this study was to establish the in vitro and in vivo anthelmintic efficacy of the leaf extract of this plant on Hymenolepis diminuta, a zoonotic tapeworm. The plant extract was also screened for its chemical constituents. The in vitro anthelmintic efficacy of the plant was evaluated by physical motility test on adult cestodes, following their exposure to 10, 20, 30 mg/ml concentrations of the crude leaf extract, while the in vivo effect was determined based on the eggs per gram (EPG) counts and worm recovery rates, using an experimentally induced model of H...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28606189/therapeutic-efficacy-of-artemisia-absinthium-against-hymenolepis-nana-in-vitro-and-in-vivo-studies-in-comparison-with-the-anthelmintic-praziquantel
#19
E V N Beshay
Hymenolepis nana is a common intestinal tapeworm that affects humans. Drugs are available for the treatment of this infection, including praziquantel (PZQ), nitazoxanide and niclosamide. Although the drug of choice is praziquantel, due to its high cure rates, indicators of the development of PZQ resistance by different parasites have begun to appear over recent decades. Therefore, this study was a trial to find an alternative to PZQ by assessing the activity of the crude aqueous extract of the medicinal herb Artemisia absinthium against H...
June 13, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28605969/control-of-hymenolepis-nana-infection-as-a-measure-to-improve-mouse-colony-welfare
#20
Alenka Dovč, Gordana Gregurić Gračner, Iztok Tomažič, Ksenija Vlahović, Marina Pavlak, Renata Lindtner Knific, Klemen Kralj, Mateja Stvarnik, Aleksandra Vergles Rataj
After cannibalism had appeared in the reproductive units of a white mouse colony, treatment against confirmed Hymenolepis nana, a tapeworm with zoonotic potential, was performed on 67 mice in the reproductive and nursery units. Faecal droppings were evaluated by flotation and sedimentation methods. The sedimentation method revealed a higher number of positive results before, during and after the treatment, but the flotation method yielded some additional positive cases. In the reproductive unit, H. nana eggs were confirmed in 50% of the tested mice by the flotation and in 70% by the sedimentation method...
June 2017: Acta Veterinaria Hungarica
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