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https://www.readbyqxmd.com/read/28799147/endoscopic-ultrasound-appearance-of-dead-ascaris-lumbricoides-in-the-biliary-tract
#1
Piyush Somani, Malay Sharma, Saurabh Jindal
No abstract text is available yet for this article.
August 10, 2017: Endoscopy
https://www.readbyqxmd.com/read/28797540/efficiency-of-two-sewage-treatment-systems-activated-sludge-and-natural-lagoons-for-helminth-egg-removal-in-morocco
#2
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/28793922/comparison-of-novel-and-standard-diagnostic-tools-for-the-detection-of-schistosoma-mekongi-infection-in-lao-people-s-democratic-republic-and-cambodia
#3
Youthanavanh Vonghachack, Somphou Sayasone, Virak Khieu, Robert Bergquist, Govert J van Dam, Pytsje T Hoekstra, Paul L A M Corstjens, Beatrice Nickel, Hanspeter Marti, Jürg Utzinger, Sinuon Muth, Peter Odermatt
BACKGROUND: Given the restricted distribution of Schistosoma mekongi in one province in Lao People's Democratic Republic (Lao PDR) and two provinces in Cambodia, together with progress of the national control programmes aimed at reducing morbidity and infection prevalence, the elimination of schistosomiasis mekongi seems feasible. However, sensitive diagnostic tools will be required to determine whether elimination has been achieved. We compared several standard and novel diagnostic tools in S...
August 10, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28793024/socioenvironmental-conditions-and-intestinal-parasitic-infections-in-brazilian-urban-slums-a-cross-sectional-study
#4
Caroline Ferraz Ignacio, Milena Enderson Chagas da Silva, Natasha Berendonk Handam, Maria de Fatima Leal Alencar, Adriana Sotero-Martins, Martha Macedo de Lima Barata, Antonio Henrique Almeida de Moraes
Methods: A cross-sectional study covering an agglomeration of urban slums was conducted between 2015 and 2016 using participants observation, a socioeconomic survey, and the spontaneous sedimentation method with three slides per sample to analyze fresh stool specimens ( n =595) searching for intestinal parasites. Results: Endolimax nana ( n =95, 16.0%) and Entamoeba coli ( n =65, 10.9%) were the most frequently identified agents, followed by Giardia intestinalis ( n =24, 4...
August 7, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28771159/verification-of-an-alternative-sludge-treatment-process-for-pathogen-reduction-at-two-wastewater-treatment-plants-in-victoria-australia
#5
R Irwin, A Surapaneni, D Smith, J Schmidt, H Rigby, S R Smith
At South East Water wastewater treatment plants (WwTPs) in Victoria, Australia, biosolids are stockpiled for three years in compliance with the State guidelines to achieve the highest pathogen reduction grade (T1), suitable for unrestricted use in agriculture and landscaping. However, extended stockpiling is costly, may increase odour nuisance and greenhouse gas emissions, and reduces the fertiliser value of the biosolids. A verification programme of sampling and analysis for enteric pathogens was conducted at two WwTPs where sludge is treated by aerobic and anaerobic digestion, air drying (in drying pans or solar drying sheds) and stockpiling, to enumerate and, if present, monitor the decay of a range of enteric pathogens and parasites...
August 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/28763517/higher-risk-of-gastrointestinal-parasite-infection-at-lower-elevation-suggests-possible-constraints-in-the-distributional-niche-of-alpine-marmots
#6
Stefania Zanet, Giacomo Miglio, Caterina Ferrari, Bruno Bassano, Ezio Ferroglio, Achaz von Hardenberg
Alpine marmots Marmota marmota occupy a narrow altitudinal niche within high elevation alpine environments. For animals living at such high elevations where resources are limited, parasitism represents a potential major cost in life history. Using occupancy models, we tested if marmots living at higher elevation have a reduced risk of being infected with gastro-intestinal helminths, possibly compensating the lower availability of resources (shorter feeding season, longer snow cover and lower temperature) than marmots inhabiting lower elevations...
2017: PloS One
https://www.readbyqxmd.com/read/28761475/the-helminths-causing-surgical-or-endoscopic-abdominal-intervention-a-review-article
#7
REVIEW
Erdal Uysal, Mehmet Dokur
BACKGROUND: Helminths sometimes require surgical or endoscopic intervention. Helminths may cause acute abdomen, mechanical intestinal obstruction, gastrointestinal hemorrhage, perforation, hepatitis, pancreatitis, and appendicitis. This study aimed to determine the surgical diseases that helminths cause and to gather, analyze the case reports, case series and original articles about this topic in literature. METHODS: This study was designed as a retrospective observational study...
April 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28759229/inactivation-of-i-ascaris-eggs-i-in-human-fecal-material-through-i-in-situ-i-production-of-carboxylic-acids
#8
Lauren Alexandra Harroff, Janice L Liotta, Dwight D Bowman, Largus T Angenent
Discovering new ways to inactivate pathogens in human waste is critical to improve worldwide access to sanitation and to reduce the environmental impact of conventional waste treatment processes. Here, we utilized the carboxylate platform and chain elongation to produce n-butyric acid and n-caproic acid via anaerobic fermentation of human fecal material. Then, we inactivated Ascaris eggs through exposure to these carboxylic acids. Using batch experiments with human fecal material as substrate, we accumulated n-butyric acid and n-caproic acid at total concentrations (uncharged acid plus conjugate base) of 257 mM and 27...
July 31, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28754237/treatment-of-larva-migrans-syndrome-with-long-term-administration-of-albendazole
#9
Amy Hombu, Ayako Yoshida, Taisei Kikuchi, Eiji Nagayasu, Mika Kuroki, Haruhiko Maruyama
BACKGROUND: Larva migrans syndrome is a food-borne parasitic disease in humans, caused by accidental ingestion of eggs or larvae of ascarid nematodes, namely, Toxocara canis, Toxocara cati, or Ascaris suum, the roundworms commonly found in the intestines of dogs, cats and pigs respectively. When a patient is diagnosed as having larva migrans syndrome, oral-administration of albendazole is recommended, however, the regimen remains controversial worldwide. In Japan, the duration of albendazole administration is longer than those of European and North American countries...
July 14, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28747239/palaeoparasitology-and-palaeogenetics-review-and-perspectives-for-the-study-of-ancient-human-parasites
#10
Nathalie M-L Côté, Matthieu LE Bailly
While some species of parasites can be identified to species level from archaeological remains using microscopy (i.e. Enterobius vermicularis, Clonorchis sinensis), others can only be identified to family or genus level as different species produce eggs with similar morphology (i.e. Tænia sp. and Echinococcus sp.). Molecular and immunological approaches offer the possibility to provide more precise determination at the species level. They can also identify taxa when classic parasite markers such as eggs or cysts have been destroyed over time...
July 27, 2017: Parasitology
https://www.readbyqxmd.com/read/28737475/ascaris-ancient-dna-sequences-of-cytochrome-b-cytochrome-c-oxidase-subunit-1-nadh-dehydrogenase-subunit-1-and-internal-transcribed-spacer-1-genes-from-joseon-mummy-feces-of-korea
#11
Jong Ha Hong, Chang Seok Oh, Min Seo, Jong Yil Chai, Dong Hoon Shin
We analyzed Ascaris ancient DNA (aDNA) of cytochrome b (cyt b), cytochrome c oxidase subunit 1 (COX1), NADH dehydrogenase subunit 1 (NAD1) and internal transcribed spacer 1 (ITS1) genes extracted from the feces or precipitates of 15th to 18th century Korean mummies. After multiple Ascaris genes in ancient samples were successfully amplified by PCR, consensus sequences could be determined by the alignment of the sequences of cloned PCR products. The obtained sequences of each gene were highly similar to those of Ascaris spp...
July 24, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28725301/review-of-infectious-etiology-of-acute-pancreatitis
#12
REVIEW
Prashanth Rawla, Sathyajit S Bandaru, Anantha R Vellipuram
While gallstones and alcoholism are widely known to be the most common causative agents of acute pancreatitis, about 10% of cases are thought to be caused by infectious microorganisms. These microorganisms include viruses (e.g. mumps, Coxsackie B, and hepatitis), bacteria (e.g. Mycoplasma pneumoniae and leptospirosis), and parasites (e.g. Ascaris lumbricoides, Fasciola hepatica, and hydatid disease). Each organism causes acute pancreatitis through diverse mechanisms. The review is primarily conducted in an attempt to provide a better understanding of the possibility of acute pancreatitis presenting as a complication relating to these organisms, and the aim is to guide future diagnoses, management, and predictions of complications...
June 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28724093/persistence-of-ascaris-spp-ova-in-tropical-soil-cultivated-with-eucalyptus-and-fertilized-with-municipal-biosolids
#13
Marianne F de Faria, Iraê A Guerrini, Fernando C Oliveira, Maria Inês Z Sato, Elayse M Hachich, José Raimundo S Passos, Lívia M L Goulart, Thiago T de S Silva, José L Gava, Joel C Furches, Jason James, Robert B Harrison
In many countries, the main reason for severely restricting or outright banning the land application of class B biosolids is the lack of risk assessment for adverse human health impacts. Among pathogens that are not often studied are helminth ova, including that of the spp. Almost all of the knowledge about the persistence of spp. ova in soils fertilized with biosolids is based on studies developed in North America, Europe, and Asia. These studies have almost always been conducted under temperate climate conditions, which may cause erroneous interpretations when the conclusions are extrapolated to tropical regions such as those found in Brazil...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28722571/more-poop-more-precision-improving-epidemiologic-surveillance-of-soil-transmitted-helminths-with-multiple-fecal-sampling-using-the-kato-katz-technique
#14
Chengfang Liu, Louise Lu, Linxiu Zhang, Yu Bai, Alexis Medina, Scott Rozelle, Darvin Scott Smith, Changhai Zhou, Wei Zang
Soil-transmitted helminths, or parasitic intestinal worms, are among the most prevalent and geographically widespread parasitic infections in the world. Accurate diagnosis and quantification of helminth infection are critical for informing and assessing deworming interventions. The Kato-Katz thick smear technique, the most widely used laboratory method to quantitatively assess infection prevalence and infection intensity of helminths, has often been compared with other methods. Only a few small-scale studies, however, have considered ways to improve its diagnostic sensitivity...
July 3, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719964/discovery-of-parasite-eggs-in-archeological-residence-during-the-15th-century-in-seoul-korea
#15
Pyo Yeon Cho, Jung-Min Park, Myeong-Ki Hwang, Seo Hye Park, Yun-Kyu Park, Bo-Young Jeon, Tong-Soo Kim, Hyeong-Woo Lee
During civil engineering construction near Sejong-ro, Jongro-ku, Seoul, cultural sites were found that are thought to have been built in the 15th century. This area was home to many different people as well as the leaders of the Yi dynasty. To gain further insight into the life styles of the inhabitants of the old capital, soil samples were collected from various areas such as toilets, water foundations, and drainage ways. Parasite eggs were examined by microscopy after 5 g soil samples were rehydrated in 0...
June 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28719642/infections-with-schistosoma-mansoni-and-geohelminths-among-school-children-dwelling-along-the-shore-of-the-lake-hawassa-southern-ethiopia
#16
Bamlaku Tadege, Techalew Shimelis
BACKGROUND: Infections with Schistosoma mansoni and soil-transmitted helminthes (STHs) are major public health problems in Ethiopia. However, information was scarce on the current status of these infections to guide an intervention in the study area. Therefore, this study was conducted to assess the prevalence of infections with S. mansoni and STHs and associated factors among school children in southern Ethiopia. METHODS: This cross-sectional study investigated children who were attending the Finchawa and Tullo junior elementary schools and were residing along the shore of the lake Hawassa in January and February, 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28719267/comparison-of-cytokine-responses-in-ecuadorian-children-infected-with-giardia-ascaris-or-both-parasites
#17
Jill Weatherhead, Andrea Arévalo Cortés, Carlos Sandoval, Maritza Vaca, Martha Chico, Sophia Loor, Philip J Cooper, Rojelio Mejia
AbstractMore than 2 billion people are infected with parasites globally, and the majority have coinfections. Intestinal protozoa and helminths induce polarizing CD4(+) T-helper cell 1 (Th1) mediated cytokine responses within the host. Such immune polarization may inhibit the ability of the host to mount an adequate immune response for pathogen clearance to concurrent pathogens. The current study evaluated the plasma cytokine profile in Ascaris and Giardia coinfected children compared with Giardia- and Ascaris-only infected children...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28716158/efficacy-of-single-dose-500-mg-mebendazole-in-soil-transmitted-helminth-infections-a-review
#18
J Mrus, B Baeten, M Engelen, S A Silber
Soil-transmitted helminthiasis (STH) is caused by Ascaris lumbricoides (roundworm), Trichuris trichiura (whipworm), and Ancylostoma duodenale and Necator americanus (hookworms). Mebendazole is one of the recommended preventive chemotherapy agents for STH. This review summarizes the efficacy data from 29 studies with single-dose 500 mg mebendazole in STH treatment and compares the results with those of a recently conducted phase 3 study of a 500 mg mebendazole chewable tablet against A. lumbricoides and T. trichiura infections...
July 18, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28711437/intestinal-parasitic-infections-current-status-and-associated-risk-factors-among-school-aged-children-in-an-archetypal-african-urban-slum-in-nigeria
#19
Vincent P Gyang, Ting-Wu Chuang, Chien-Wei Liao, Yueh-Lun Lee, Olaoluwa P Akinwale, Akwaowo Orok, Olusola Ajibaye, Ajayi J Babasola, Po-Ching Cheng, Chia-Mei Chou, Ying-Chieh Huang, Pasaiko Sonko, Chia-Kwung Fan
BACKGROUND/PURPOSE: Intestinal parasitic infections (IPIs) among school aged children (SAC) in Nigeria remains endemic, hence the need for regular surveillance to attract the attention of policy makers. This cross-sectional study investigated the current prevalence and factors associated with intestinal parasitic infections among school aged children in an urban slum of Lagos City, Nigeria. METHODS: Single stool samples from 384 school aged children (188 boys and 196 girls) were examined by employing Merthiolate-iodine-formaldehyde concentration (MIFC) and Kato-Katz methods...
June 22, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28708895/yeast-expressed-recombinant-as16-protects-mice-against-ascaris-suum-infection-through-induction-of-a-th2-skewed-immune-response
#20
Junfei Wei, Leroy Versteeg, Zhuyun Liu, Brian Keegan, Ana Clara Gazzinelli-Guimarães, Ricardo T Fujiwara, Neima Briggs, Kathryn M Jones, Ulrich Strych, Coreen M Beaumier, Maria Elena Bottazzi, Peter J Hotez, Bin Zhan
BACKGROUND: Ascariasis remains the most common helminth infection in humans. As an alternative or complementary approach to global deworming, a pan-anthelminthic vaccine is under development targeting Ascaris, hookworm, and Trichuris infections. As16 and As14 have previously been described as two genetically related proteins from Ascaris suum that induced protective immunity in mice when formulated with cholera toxin B subunit (CTB) as an adjuvant, but the exact protective mechanism was not well understood...
July 2017: PLoS Neglected Tropical Diseases
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