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https://www.readbyqxmd.com/read/28531364/analysis-of-the-internal-transcribed-spacer-region-of-ascaris-suum-and-ascaris-lumbricoides-derived-from-free-range-tibetan-pigs
#1
Kun Li, Houqiang Luo, Hui Zhang, Khalid Mehmood, Muhammad Shahzad, Lihong Zhang, Jiakui Li
Ascaris suum (A. suum) is the most commonly occurring worldwide internal parasite of pigs; however, little is known about this organism in Tibetan pigs in China. A study was carried to isolate and identify the characteristics of internal transcribed spacer region (ITS) gene of A. suum derived from Tibetan pigs. Adult nematodes were collected from Tibetan pigs in 2015-2016. Total genomic DNA of the extracted parasites was performed and a fragment of the ITS of mitochondrial (mt) gene was amplified. The amplicons were cloned into PGEM®-T Easy Vector (Promega, WI) and the positive clones were sequenced by ABI 3730 × 1 sequencer...
May 21, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/28507618/correlation-between-soil-transmitted-helminth-infection-and-eosinophil-levels-among-primary-school-children-in-medan
#2
Dewi Masyithah Darlan, Zaimah Z Tala, Cellya Amanta, Syah Mirsya Warli, Nurfida K Arrasyid
BACKGROUND: Soil Transmitted Helminth infection is one of most prevalent health problems worldwide, especially in environments with poor sanitation. Based on World Health Organisation (WHO) data, more than 2 billion people, or 24% of the world's population, are infected with intestinal parasite. The highest prevalence is located in areas of poor sanitation and unsafe water supplies. In Indonesia, the prevalence of parasite infections is 15% of the entire population. AIM: The purpose of this study was to determine the relationship between Soil Transmitted Helminth infection on levels of eosinophils among primary school children...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28506307/intestinal-parasitic-infections-and-its-association-with-undernutrition-and-cd4-t-cell-levels-among-hiv-aids-patients-on-haart-in-butajira-ethiopia
#3
Dereje Gedle, Gemechu Kumera, Tewodros Eshete, Kasahun Ketema, Haweni Adugna, Fetuma Feyera
BACKGROUND: Intestinal parasitic infections and HIV/AIDS have been the major public health problems and remain a vital cause of morbidity and mortality in developing countries. Both problems are linked in a vicious cycle. The magnitude of intestinal parasites was prevalent among people living with HIV/AIDS even in the HAART era. However, the pertinent risk factors associated with intestinal parasites among HIV/AIDS patients were not well investigated in Ethiopia particularly at Butajira town...
May 15, 2017: Journal of Health, Population, and Nutrition
https://www.readbyqxmd.com/read/28489889/an-environmental-assessment-and-risk-map-of-ascaris-lumbricoides-and-necator-americanus-distributions-in-manufahi-district-timor-leste
#4
Rebecca Wardell, Archie C A Clements, Aparna Lal, David Summers, Stacey Llewellyn, Suzy J Campbell, James McCarthy, Darren J Gray, Susana V Nery
BACKGROUND: In Timor-Leste there have been intermittent and ineffective soil-transmitted helminth (STH) deworming programs since 2004. In a resource-constrained setting, having information on the geographic distribution of STH can aid in prioritising high risk communities for intervention. This study aimed to quantify the environmental risk factors for STH infection and to produce a risk map of STH in Manufahi district, Timor-Leste. METHODOLOGY/PRINCIPAL FINDINGS: Georeferenced cross-sectional data and stool samples were obtained from 2,194 participants in 606 households in 24 villages in the Manufahi District as part of cross sectional surveys done in the context of the "WASH for Worms" randomised controlled trial...
May 10, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28479276/viability-assessment-of-ascaris-suum-eggs-stained-with-fluorescent-dyes-using-digital-colorimetric-analysis
#5
Magdalena Włodarczyk, Jolanta Zdybel, Marek Próchniak, Zbigniew Osiński, Jacek Karamon, Teresa Kłapeć, Tomasz Cencek
The aim of the study was to develop a method for the colorimetric evaluation of nematode eggs using appropriate instruments. The materials for the study were live and dead (inactivated) eggs of the Ascaris suum. Viability of the eggs was assessed using four different kits for fluorescent staining (for each technique, a series of photos were taken). Images of stained eggs were analysed using graphic software with RGB (red-green-blue) function. The viability of the eggs was assessed according to the relative positions of the distributions of colour intensities of live or dead eggs - distributions area's overlap index (DAOI), and distributions area's separation index (DASI) were calculated...
May 4, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28446190/recognition-of-plasmodium-falciparum-mature-gametocyte-infected-erythrocytes-by-antibodies-of-semi-immune-adults-and-malaria-exposed-children-from-gabon
#6
Tamirat Gebru, Anthony Ajua, Michael Theisen, Meral Esen, Ulysse Ateba Ngoa, Saadou Issifou, Ayola A Adegnika, Peter G Kremsner, Benjamin Mordmüller, Jana Held
BACKGROUND: Transmission of malaria from man to mosquito depends on the presence of gametocytes, the sexual stage of Plasmodium parasites in the infected host. Naturally acquired antibodies against gametocytes exist and may play a role in controlling transmission by limiting the gametocyte development in the circulation or by interrupting gamete development and fertilization in the mosquito following ingestion. So far, most studies on antibody responses to sexual stage antigens have focused on a subset of gametocyte-surface antigens, even though inhibitory Ab responses to other gametocyte antigens might also play a role in controlling gametocyte density and fertility...
April 26, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28445838/addition-of-insulin-like-growth-factor-i-to-the-maturation-medium-of-bovine-oocytes-subjected-to-heat-shock-effects-on-the-production-of-reactive-oxygen-species-mitochondrial-activity-and-oocyte-competence
#7
I J Ascari, N G Alves, J Jasmin, R R Lima, C C R Quintão, G Oberlender, E A Moraes, L S A Camargo
This study was performed to investigate the effects of insulin-like growth factor-I (IGF-I) addition to in vitro maturation (IVM) medium on apoptosis, mitochondrial membrane potential, ROS production, and developmental competence of bovine oocytes subjected to heat shock. Two temperatures (conventional: 24 h at 38.5°C, or heat shock: 12 h at 41°C followed by 12 h at 38.5°C) and 3 IGF-I concentrations (0, 25, and 100 ng/mL) were tested during IVM. The oocytes were then fertilized in vitro, and the presumptive zygotes were cultured until reaching the blastocyst stage...
March 25, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/28442321/high-prevalence-of-plasmodium-falciparum-and-soil-transmitted-helminth-co-infections-in-a-periurban-community-in-kwara-state-nigeria
#8
Olarewaju A Babamale, Uade S Ugbomoiko, Jorg Heukelbach
Prevalence of malaria and soil-transmitted helminth infections, and the burden of disease are enormous in sub-Saharan Africa. Co-infections aggravate the clinical outcome, but are common due to an overlap of endemic areas. A cross-sectional survey was conducted to assess prevalence, intensity of infection and association between malaria and soil-transmitted helminth infections in a typical periurban community in Kwara State. Fresh blood and faecal samples were examined using thick blood film and Kato-Katz smear techniques...
April 22, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28434412/molecular-characterization-and-transcriptional-analysis-of-the-female-enriched-chondroitin-proteoglycan-2-of-toxocara-canis
#9
G X Ma, R Q Zhou, L Hu, Y L Luo, Y F Luo, H H Zhu
Toxocara canis is an important but neglected zoonotic parasite, and is the causative agent of human toxocariasis. Chondroitin proteoglycans are biological macromolecules, widely distributed in extracellular matrices, with a great diversity of functions in mammals. However, there is limited information regarding chondroitin proteoglycans in nematode parasites. In the present study, a female-enriched chondroitin proteoglycan 2 gene of T. canis (Tc-cpg-2) was cloned and characterized. Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to measure the transcription levels of Tc-cpg-2 among tissues of male and female adult worms...
April 24, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28423091/an-unusual-abdominal-wall-mass-in-a-child
#10
Amalia Maria do Espirito Santo Souza, Tomas Marzagão Barbuto, Flávia Alessandra Freitas, Nathalia Fernandes Vianna, Carla Maria Costa Zanchetta, Silvana Forsait, Claudio Borba, Alessandra Milani Prandini de Azambuja, Lilian Maria Cristofani, Vicente Odone
Abdominal tumors are one of the most common types of pediatric cancer. Therefore, they should always be included in the differential diagnosis of abdominal masses. Here, we present the case of a child whose initial hypothesis of diagnosis contemplated this possibility. Later, it was demonstrated that the abdominal mass found was secondary to a common parasitosis. A 2-year old, moderately malnourished and pale white boy was referred with a history of a rapidly growing, well-limited, middle abdominal mass. The mass was 10 by 3 cm, hard and poorly movable, apparently involving both abdominal rectus muscles...
April 13, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28420411/characterization-of-a-novel-aspartyl-protease-inhibitor-from-haemonchus-contortus
#11
Baojie Li, Javaid Ali Gadahi, Wenxiang Gao, Zhenchao Zhang, Muhammad Ehsan, Lixin Xu, Xiaokai Song, Xiangrui Li, Ruofeng Yan
BACKGROUND: Aspartyl protease inhibitor (API) was thought to protect intestinal parasitic nematodes from their hostile proteolytic environment. Studies on Ostertagia ostertagi, Ascaris suum and Brugia malayi indicated that aspins might play roles in nematode infection. In a recent study, proteins differentially expressed between free-living third-stage larvae (L3) and activated L3 (xL3) of Haemonchus contortus were identified by 2D-DIGE. API was found downregulated in xL3 when compared with L3...
April 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28402840/high-molecular-weight-components-containing-n-linked-oligosaccharides-of-ascaris-suum-extract-inhibit-the-dendritic-cells-activation-through-dc-sign-and-mr
#12
Bruna C Favoretto, Adriana A C Casabuono, José A Portes-Junior, Jacqueline F Jacysyn, Alicia S Couto, Eliana L Faquim-Mauro
Helminths, as well as their secretory/excretory products, induce a tolerogenic immune microenvironment. High molecular weight components (PI) from Ascaris suum extract down-modulate the immune response against ovalbumin (OVA). The PI exerts direct effect on dendritic cells (DCs) independent of TLR 2, 4 and MyD88 molecule and, thus, decreases the T lymphocytes response. Here, we studied the glycoconjugates in PI and the role of C-type lectin receptors (CLRs), DC-SIGN and MR, in the modulation of DCs activity...
April 9, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28384964/post-extubation-bronchospasm-in-an-undiagnosed-case-of-ascariasis-anaesthetic-challenges
#13
Ravindra Gehlot, Shekhar Suman Saxena, Indira Kumari, Virendra Verma, Aditya Bidwaikar
One of the most prevalent parasitic infestation is ascariasis which poses a great challenge to both the person being infested with and the treating medical team. We present here a case of round worm (Ascaris lumbricoides) infestation. A 40-year-old male, weighing 60 kg, diagnosed as perforation peritonitis, was scheduled for emergency exploratory laparotomy. The round worm was crawling out from duodenal perforation vent during laparotomy confirming the infestation. Patient later developed bronchospasm in post-extubation period and was managed accordingly...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28379956/detecting-and-enumerating-soil-transmitted-helminth-eggs-in-soil-new-method-development-and-results-from-field-testing-in-kenya-and-bangladesh
#14
Lauren Steinbaum, Laura H Kwong, Ayse Ercumen, Makeda S Negash, Amira J Lovely, Sammy M Njenga, Alexandria B Boehm, Amy J Pickering, Kara L Nelson
Globally, about 1.5 billion people are infected with at least one species of soil-transmitted helminth (STH). Soil is a critical environmental reservoir of STH, yet there is no standard method for detecting STH eggs in soil. We developed a field method for enumerating STH eggs in soil and tested the method in Bangladesh and Kenya. The US Environmental Protection Agency (EPA) method for enumerating Ascaris eggs in biosolids was modified through a series of recovery efficiency experiments; we seeded soil samples with a known number of Ascaris suum eggs and assessed the effect of protocol modifications on egg recovery...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28377928/quantitative-pcr-and-digital-pcr-for-detection-of-ascaris-lumbricoides-eggs-in-reclaimed-water
#15
Lucrecia Acosta Soto, Ana Belén Santísima-Trinidad, Fernando Jorge Bornay-Llinares, Marcos Martín González, José Antonio Pascual Valero, Margarita Ros Muñoz
The reuse of reclaimed water from wastewater depuration is a widespread and necessary practice in many areas around the world and must be accompanied by adequate and continuous quality control. Ascaris lumbricoides is one of the soil-transmitted helminths (STH) with risk for humans due to its high infectivity and an important determinant of transmission is the inadequacy of water supplies and sanitation. The World Health Organization (WHO) recommends a limit equal to or lower than one parasitic helminth egg per liter, to reuse reclaimed water for unrestricted irrigation...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28372977/effect-of-3-years-of-biannual-mass-drug-administration-with-albendazole-on-lymphatic-filariasis-and-soil-transmitted-helminth-infections-a-community-based-study-in-republic-of-the-congo
#16
Sébastien D S Pion, Cédric B Chesnais, Gary J Weil, Peter U Fischer, François Missamou, Michel Boussinesq
BACKGROUND: The standard treatment strategy of mass drug administration with ivermectin plus albendazole for lymphatic filariasis cannot be applied in central Africa, because of the risk of serious adverse events in people with high Loa loa microfilaraemia. Thus, alternative strategies are needed. We investigated one such alternative strategy for mass drug administration for elimination of lymphatic filariasis and soil-transmitted helminth infections in Republic of the Congo. METHODS: In 2012, we started a 3 year community trial of biannual mass administration of albendazole in a village in Republic of the Congo...
March 31, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28353561/combination-of-laparoscope-and-choledochoscope-to-treat-biliary-ascariasis-a-care-compliant-case-report
#17
Ming Cai, Ji Cheng, Wei Li, Xiaoming Shuai, Jinbo Gao, Kailin Cai, Jiliang Wang, Jie Bai, Colin Rog, Guobin Wang, Kaixiong Tao
RATIONALE: Ascariasis is an endemic parasitic disease caused by Ascaris lumbricoides, which severely burdens the healthcare system as well as harms the personal life quality, especially among less developed regions. Biliary ascariasis is a critical complication of intestinal ascariasis with painful and life-threatening manifestations. The exploration of proper strategies as its medical interventions remains largely controversial. PATIENT CONCERNS: A 16 year-old patient complained of abdominal pain and yellow sclera...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28350867/dissociation-between-skin-test-reactivity-and-anti-aeroallergen-ige-determinants-among-urban-brazilian-children
#18
Neuza M Alcantara-Neves, Rafael V Veiga, João C M Ponte, Sérgio S da Cunha, Silvia M Simões, Álvaro A Cruz, Maria Yazdanbakhsh, Sheila M Matos, Thiago Magalhães Silva, Camila A Figueiredo, Lain C Pontes-de-Carvalho, Laura C Rodrigues, Rosemeire L Fiaccone, Philip J Cooper, Maurício L Barreto
BACKGROUND: The dissociation between specific IgE and skin prick test reactivity to aeroallergens, a common finding in populations living in low and middle-income countries, has important implications for the diagnosis and treatment of allergic diseases. Few studies have investigated the determinants of this dissociation. In the present study, we explored potential factors explaining this dissociation in children living in an urban area of Northeast Brazil, focusing in particular on factors associated with poor hygiene...
2017: PloS One
https://www.readbyqxmd.com/read/28346536/water-sanitation-and-hygiene-wash-and-environmental-risk-factors-for-soil-transmitted-helminth-intensity-of-infection-in-timor-leste-using-real-time-pcr
#19
Suzy J Campbell, Susana V Nery, Rebecca Wardell, Catherine A D'Este, Darren J Gray, James S McCarthy, Rebecca J Traub, Ross M Andrews, Stacey Llewellyn, Andrew J Vallely, Gail M Williams, Archie C A Clements
BACKGROUND: No investigations have been undertaken of risk factors for intensity of soil-transmitted helminth (STH) infection in Timor-Leste. This study provides the first analysis of risk factors for intensity of STH infection, as determined by quantitative PCR (qPCR), examining a broad range of water, sanitation and hygiene (WASH) and environmental factors, among communities in Manufahi District, Timor-Leste. METHODS: A baseline cross-sectional survey of 18 communities was undertaken as part of a cluster randomised controlled trial, with additional identically-collected data from six other communities...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28342672/an-in-vitro-larval-migration-assay-for-assessing-anthelmintic-activity-of-different-drug-classes-against-ascaris-suum
#20
Jianguo Zhao, Andrew R Williams, Tina Vicky Alstrup Hansen, Stig M Thamsborg, Jianping Cai, Shuaibao Song, Gang Chen, Ming Kang, Zhuangzhi Zhang, Qun Liu, Qian Han
In vitro methods have been developed for the detection of anthelmintic resistance in a range of nematode species. However, the life cycle of Ascaris suum renders the commonly used egg hatch assay and larval development assay unusable. In this study we developed a combined multi-well culture and agar gel larval migration assay to test the effect of benzimidazole and tetrahydropyrimidin/imidazothiazole anthelmintics against nine isolates of A. suum collected from locations in China and Denmark. Drugs tested were thiabendazole, fenbendazole, mebendazole, levamisole, and pyrantel...
March 18, 2017: Veterinary Parasitology
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