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https://www.readbyqxmd.com/read/28449427/trichuris-trichiura-infection-in-north-korean-defector-resulted-in-chronic-abdominal-pain-and-growth-retardation
#1
Jong Bin Kim, Kwang Il Seo, Won Moon
Trichuris trichiura infection is a common helminth infection, which is transmitted via soil, with worldwide distribution, especially in rural areas of developing countries. Occasionally, sporadic cases occur in non-endemic, developed areas due to the widespread of immigration. We experienced a case of Trichuris dysentery syndrome in a young North Korean defector, who had been suffering from chronic abdominal pain for 10 years. He is relatively short and thin compared with his older brother. Unexpectedly, the diagnosis, made by a colonoscopy, revealed numerous, small, white, and gently moving worms at the cecum and ascending colon...
April 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
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
#2
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/28410387/mathematical-algorithm-for-the-automatic-recognition-of-intestinal-parasites
#3
Alicia Alva, Carla Cangalaya, Miguel Quiliano, Casey Krebs, Robert H Gilman, Patricia Sheen, Mirko Zimic
Parasitic infections are generally diagnosed by professionals trained to recognize the morphological characteristics of the eggs in microscopic images of fecal smears. However, this laboratory diagnosis requires medical specialists which are lacking in many of the areas where these infections are most prevalent. In response to this public health issue, we developed a software based on pattern recognition analysis from microscopi digital images of fecal smears, capable of automatically recognizing and diagnosing common human intestinal parasites...
2017: PloS One
https://www.readbyqxmd.com/read/28404797/self-adjuvanting-c18-lipid-vinil-sulfone-pp2a-vaccine-study-of-the-induced-immunomodulation-against-trichuris-muris-infection
#4
M Gomez-Samblas, J J García-Rodríguez, M Trelis, D Bernal, F J Lopez-Jaramillo, F Santoyo-Gonzalez, S Vilchez, A M Espino, F Bolás-Fernández, A Osuna
Despite the importance of the adjuvant in the immunization process, very few adjuvants merge with the antigens in vaccines. A synthetic self-adjuvant oleic-vinyl sulfone (OVS) linked to the catalytic region of recombinant serine/threonine phosphatase 2A from the nematode Angiostrongylus costaricensis (rPP2A) was used for intranasal immunization in mice previously infected with Trichuris muris The animal intranasal immunization with rPP2A-OVS showed a reduction of 99.01% in the number of the nematode eggs and 97...
April 2017: Open Biology
https://www.readbyqxmd.com/read/28392468/description-of-a-new-species-trichuris-ursinus-n-sp-nematoda-trichuridae-from-papio-ursinus-keer-1792-from-south-africa
#5
Rocío Callejón, Ali Halajian, Cristina Cutillas
In the present work, we carried out a morphological, biometrical and molecular study of whipworms Trichuris Roederer, 1761 (Nematoda: Trichuridae) parasitizing Papio ursinus Keer 1792 (Chacma baboon). Biometrical and molecular data suggest a new species of Trichuris parasitizing baboons. In addition of main morphological features (spicule, spicule sheath, spicule tube, proximal cloacal tube, distal cloacal tube, vulva, vagina), the mean values of individual variables between Trichuris colobae, Trichuris suis, Trichuris trichiura examined by Student's t tests suggest that T...
April 7, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28384306/trichuris-trichiura-infection-and-its-relation-to-environmental-factors-in-mbeya-region-tanzania-a-cross-sectional-population-based-study
#6
Kirsi M Manz, Petra Clowes, Inge Kroidl, Dickens O Kowuor, Christof Geldmacher, Nyanda E Ntinginya, Leonard Maboko, Michael Hoelscher, Elmar Saathoff
BACKGROUND: The intestinal nematode Trichuris trichiura is among the most common causes of human infectious disease worldwide. As for other soil-transmitted nematodes, its reproductive success and thus prevalence and intensity of infection in a given area strongly depend on environmental conditions. Characterization of the influence of environmental factors can therefore aid to identify infection hot spots for targeted mass treatment. METHODOLOGY: We analyzed data from a cross-sectional survey including 6234 participants from nine distinct study sites in Mbeya region, Tanzania...
2017: PloS One
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
#7
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/28378987/stray-dogs-and-cats-as-potential-sources-of-soil-contamination-with-zoonotic-parasites
#8
Katarzyna Szwabe, Joanna Blaszkowska
INTRODUCTION AND OBJECTIVE: The main source of many zoonoses is soil contaminated with feline and canine faeces. Thus, the aim of this study was to estimate the prevalence of intestinal parasites in stray dogs and cats adopted in Lodz shelter (Poland). MATERIALS AND METHODS: In total, 163 faecal samples were collected from 95 dogs and 68 cats from 2011 to 2012. The samples were processed by sedimentation techniques using Mini Parasep®SF. RESULTS: Six parasite genera belonging to protozoa, cestoda, and nematoda, were found in dogs, while eight were found in cats...
March 22, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28378972/quantifying-the-risk-of-zoonotic-geohelminth-infections-for-rural-household-inhabitants-in-central-poland
#9
Jakub Gawor, Anna Borecka
The objective of this study was to evaluate the risk of soil transmitted zoonotic helminth infections for families with young children, inhabitants of villages in the Mazowieckie Province of Central Poland. Epidemiological survey was conducted at 33 randomly selected households with 2-3 children present. Examination of soil samples from yards surrounding the houses for the presence of geohelminth eggs was conducted, the households were inspected, and family members interviewed using a designed questionnaire...
March 31, 2017: Annals of Agricultural and Environmental Medicine: AAEM
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
#10
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/28371660/exposure-of-heligmosomoides-polygyrus-and-trichuris-muris-to-albendazole-albendazole-sulfoxide-mebendazole-and-oxantel-pamoate-in%C3%A2-vitro-and-in%C3%A2-vivo-to-elucidate-the-pathway-of-drug-entry-into-these-gastrointestinal-nematodes
#11
Noemi Cowan, Charles Meier, Anna Neodo, Jennifer Keiser
Millions of people are treated with anthelmintics to control soil-transmitted helminth infections; yet, drug distribution in the plasma and gastrointestinal tract compartments and the pathway of drug uptake into gastrointestinal nematodes responsible for the pharmacological effect are unknown. We assessed the distribution and uptake of albendazole, albendazole sulfoxide, albendazole sulfone in the hookworm Heligmosomoides polygyrus in vitro and in vivo as well as the distribution and uptake of albendazole, mebendazole, and oxantel pamoate in the whipworm Trichuris muris in vitro and invivo...
March 24, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28350867/dissociation-between-skin-test-reactivity-and-anti-aeroallergen-ige-determinants-among-urban-brazilian-children
#12
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/28342825/association-between-parasitic-infections-and-tuberculin-skin-test-results-in-refugees
#13
Nathaniel S Watts, Mucho M Mizinduko, Elizabeth D Barnett, Laura F White, Natasha S Hochberg
BACKGROUND: Parasitic infections are known to modulate the immune response necessary for controlling Mycobacterium tuberculosis infection. We sought to investigate species-specific effects of parasite infection on M. tuberculosis infection. METHODS: As part of the Refugee Health Assessment Program, stool examinations and tuberculin skin testing were performed on refugees seen at Boston Medical Center between 1995 and 2012. Tuberculin skin test (TST) and stool examination data were collected for 6669 refugees; 3349 (50...
March 22, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/28340144/preventive-chemotherapy-in-one-year-reduces-by-over-80-the-number-of-individuals-with-soil-transmitted-helminthiases-causing-morbidity-results-from-meta-analysis
#14
Chiara Marocco, Mathieu Bangert, Serene A Joseph, Christopher Fitzpatrick, Antonio Montresor
The morbidity due to Ascaris lumbricoides and Trichuris trichiura is caused by infections of moderate and heavy intensity while hookworm infections of all intensities are recognized to cause morbidity.This study aims to evaluate the effect of repeated rounds of preventive chemotherapy on the proportion of soil-transmitted helminth (STH) infections causing morbidity. We identified studies from 17 countries, reporting changes in the proportion of STH infection causing morbidity between baseline and follow-up...
March 18, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28316402/prevalence-and-risk-factors-for-gastrointestinal-parasitism-in-traditionally-maintained-goat-flocks-of-south-gujarat
#15
L M Sorathiya, A B Fulsoundar, T K S Rao, Niranjan Kumar
A total of 360 faecal samples of goat belonging to Ahir community were collected randomly from eight villages on monthly basis. On same day, collected samples were subjected to qualitative faecal examination and positive samples were categorized into mild, moderate and heavy infected groups. The risk factors considered for study were age, pregnancy, lactation, seasons, wet land grazing and hygiene in housing. Overall 41.11 % animals were found positive for helminth eggs and among them 24.17, 10.56 and 6.39 % of goats were mildly, moderately and heavily infected, respectively...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28302673/pneumococcal-vaccine-response-after-exposure-to-parasites-in-utero-in-infancy-or-mid-childhood
#16
Monica Nayakwadi Singer, Claire Heath, Jackson Muinde, Virginia Gildengorin, Francis M Mutuku, David Vu, Dunstan Mukoko, Christopher L King, Indu J Malhotra, Charles H King, A Desirée LaBeaud
BACKGROUND AND OBJECTIVE: Streptococcus pneumoniae is a leading cause of mortality before age 5, but few studies examine details of childhood response to pneumococcal vaccine in less-developed settings. Although malnutrition, HIV, and concurrent infections can impair response, evidence suggests that chronic parasitic infections can also contribute to poor vaccination results. The objective of this study was to determine whether response to pneumococcal vaccine varied among children either exposed to parasitic infections in utero, previously infected in infancy, or infected at the time of immunization...
March 16, 2017: Pediatrics
https://www.readbyqxmd.com/read/28302147/soil-transmitted-helminths-and-plasmodium-falciparum-malaria-among-individuals-living-in-different-agroecosystems-in-two-rural-communities-in-the-mount-cameroon-area-a-cross-sectional-study
#17
Irene Ule Ngole Sumbele, Gladys Belanka Nkemnji, Helen Kuokuo Kimbi
BACKGROUND: Soil-transmitted helminths (STHs) and Plasmodium falciparum infections remain public health problems in Cameroon. A cross-sectional study was carried out in the Mount Cameroon area to determine the prevalence and intensity of STHs and P. falciparum infections in individuals living in different agroecosystems; to assess the influence of these infections on haematological parameters; and to identify the risk factors associated with STH infections. METHODS: STH and malaria parasites were detected using the Kato-Katz method and Giemsa staining of blood films, respectively...
March 16, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28290266/improved-diagnosis-of-trichuris-trichiura-by-using-a-bead-beating-procedure-on-ethanol-preserved-stool-samples-prior-to-dna-isolation-and-the-performance-of-multiplex-real-time-pcr-for-intestinal-parasites
#18
Maria M M Kaisar, Eric A T Brienen, Yenny Djuardi, Erliyani Sartono, Maria Yazdanbakhsh, Jaco J Verweij, Taniawati Supali, Lisette VAN Lieshout
For the majority of intestinal parasites, real-time PCR-based diagnosis outperforms microscopy. However, the data for Trichuris trichiura have been less convincing and most comparative studies have been performed in populations with low prevalence. This study aims to improve detection of T. trichuria DNA in human stool by evaluating four sample preparation methods. Faecal samples (n = 60) were collected at Flores island, Indonesia and examined by microscopy. Aliquots were taken and a bead-beating procedure was used both on directly frozen stool and on material preserved with 96% ethanol...
March 14, 2017: Parasitology
https://www.readbyqxmd.com/read/28289849/geo-helminthiasis-among-migrants-in-sicily-a-possible-focus-for-re-emerging-neurocysticercosis-in-europe
#19
Ildebrando Patamia, Piermario Nicotra, Davide Amodeo, Loretta Giuliano, Calogero Edoardo Cicero, Alessandra Nicoletti
A dramatic increasing immigration flow was recorded in Europe during the last years. Only in Sicily 120,239 people arrived in 2014. Immigrants may carry neglected tropical diseases endemic in their origin countries. The aim of our study was to evaluate the frequency of geo-helminthiasis, and in particular of intestinal taeniasis, in a sample of migrants hosted in a large asylum seeker centre in the province of Catania. A stool sample was obtained from all the enrolled subjects and a coproparasitological examination was performed...
March 13, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28284979/effect-of-polymorphisms-on-tgfb1-on-allergic-asthma-and-helminth-infection-in-an-african-admixed-population
#20
Ryan Dos Santos Costa, Camila Alexandrina Figueiredo, Maurıcio Lima Barreto, Neuza Maria Alcantara-Neves, Laura Cunha Rodrigues, Alvaro A Cruz, Candelaria Vergara, Nicholas Rafaels, Cassandra Foster, Joseph Potee, Monica Campbell, Rasika A Mathias, Kathleen C Barnes
BACKGROUND: Allergic asthma is a complex disorder that results from a combination of genetic and environmental factors. Studies suggest that helminth infections can activate a regulatory network characterized by the production of regulatory cytokines, such as interleukin 10 and transforming growth factor β1 (TGF-β1) and subsequently protect against immune-mediated diseases, such as asthma. On the other hand, TGF-β1 is increased in the lungs of individuals with asthma and may modulate airway inflammation...
April 2017: Annals of Allergy, Asthma & Immunology
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