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Endolimax nana

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
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
Clarissa Perez Faria, Graziela Maria Zanini, Gisele Silva Dias, Sidnei da Silva, Marcelo Bessa de Freitas, Ricardo Almendra, Paula Santana, Maria do Céu Sousa
BACKGROUND: Intestinal parasitic infections remain among the most common infectious diseases worldwide. This study aimed to estimate their prevalence and provide a detailed analysis of geographical distribution of intestinal parasites in the metropolitan region of Rio de Janeiro, considering demographic, socio-economic, and epidemiological contextual factors. METHODS/PRINCIPAL FINDINGS: The cross-section survey was conducted among individuals attending the Evandro Chagas National Institute of Infectious Diseases (FIOCRUZ, RJ) during the period from April 2012 to February 2015...
March 2017: PLoS Neglected Tropical Diseases
Juan David Ramírez, Carolina Flórez, Mario Olivera, María Consuelo Bernal, Julio Cesar Giraldo
Blastocystis is a common enteric protist colonizing probably more than 1 billion people with a large variety of non-human hosts. Remarkable genetic diversity has been observed, leading to the subdivision of the genus into multiple subtypes (ST), some of which are exclusively found in non-human hosts. The aim of this study was to determine the distribution of Blastocystis STs/18S alleles in symptomatic (abdominal pain, anal pruritus, diarrhea, headache, nauseas and/or vomit) and asymptomatic children from nine geographical regions of Colombia...
2017: PloS One
Amin Saeidinia, Ilnaz Tavakoli, Mohammad Reza Naghipour, Behnaz Rahmati, Hossein Ghavami Lahiji, Omid Salkhori, Keyhan Ashrafi
BACKGROUND: We aimed to determine the status of strongyloidiasis in mentally disabled population in the institutional places in Rasht City, the capital of Guilan Province, northern Iran. METHODS: This cross-sectional study was conducted in 8 institutions for mentally retarded population in Rasht in 2013. Before collecting the samples, a questionnaire was filled out for each participant by an expert person. A single stool sample was obtained from each of the 173 subjects and examined using direct wet mount, formalin-ether concentration technique and agar plate culture method...
October 2016: Iranian Journal of Parasitology
Renzo Nino Incani, Elizabeth Ferrer, Denise Hoek, Robbert Ramak, Jeroen Roelfsema, Lapo Mughini-Gras, Titia Kortbeek, Elena Pinelli
A cross-sectional study was carried out to determine the prevalence and diagnostic performance of microscopy and real time PCR (RT-PCR) for 14 intestinal parasites in a Venezuelan rural community with a long history of persistent intestinal parasitic infections despite the implementation of regular anthelminthic treatments. A total of 228 participants were included in this study. A multiplex RT-PCR was used for the detection of Dientamoeba fragilis, Giardia intestinalis, Cryptosporidium sp. and a monoplex RT-PCR for Entamoeba histolytica...
March 2017: Acta Tropica
Marawan A Abu-Madi, Jerzy M Behnke, Ahmed Ismail, Sonia Boughattas
BACKGROUND: In the last decades, the enormous influx of immigrants to industrialized countries has led to outbreaks of parasitic diseases, with enteric infections being amongst the most frequently encountered. In its strategy to control such infection, Qatar has established the Pre-Employment Certificate (PEC) program which requires medical inspection before arrival in Qatar and which is mandatory for immigrant workers travelling to the country. To assess the reliability of the PEC, we conducted a survey of intestinal parasites, based on examination of stool samples provided by immigrant workers (n = 2,486) recently arrived in Qatar...
December 1, 2016: Parasites & Vectors
Bahador Sarkari, Ghasem Hosseini, Mohammad Hossein Motazedian, Mohammad Fararouei, Abdolali Moshfe
BACKGROUND: Parasitic infections are still a significant health problem in rural areas in developing countries including Iran. There is no recent population-based data about the prevalence of human intestinal parasites in most rural areas of Iran. The current study aimed to determine the prevalence of intestinal protozoan infection in inhabitants of rural areas of Boyer-Ahmad district, Southwestern Iran. METHODS: A total of 1025 stool samples were collected from the inhabitant of 50 randomly selected villages in Boyer-Ahmad Township...
November 25, 2016: BMC Infectious Diseases
Liliana Simões-Silva, Inês Correia, Joana Barbosa, Carla Santos-Araujo, Maria João Sousa, Manuel Pestana, Isabel Soares-Silva, Benedita Sampaio-Maia
Currently, chronic kidney disease (CKD) is a global health problem. Considering the impaired immunity of CKD patients, the relevance of infection in peritoneal dialysis (PD), and the increased prevalence of parasites in CKD patients, protozoa colonization was evaluated in PD effluent from CKD patients undergoing PD. Overnight PD effluent was obtained from 49 asymptomatic stable PD patients. Protozoa analysis was performed microscopically by searching cysts and trophozoites in direct wet mount of PD effluent and after staining smears...
September 2016: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
Rasool Jafari, Forough Sharifi, Bahram Bagherpour, Marzieh Safari
Intestinal parasites are important enteric pathogens. Poverty, low quality of food and water supply and poor sanitation systems are the important factors associated with intestinal parasitic infections. These kinds of infections can be a good index for hygienic and sanitation status of the society. This study aimed to determine the prevalence of intestinal parasitic infections among humans referred to Dr. Sharifi Clinical Laboratory, Isfahan, Iran, 2014. In this cross sectional study, 652 fecal samples (286 males and 366 females) from humans who had stool examination test from January to August 2014 were chosen...
September 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
Marawan A Abu-Madi, Jerzy M Behnke, Sonia Boughattas, Asma Al-Thani, Sanjay H Doiphode
BACKGROUND: The World Health Organization estimates that about 3.5 billion people worldwide are affected by intestinal parasitic infections. Reports have already emphasized the role of immigrants in outbreaks of parasitic diseases in industrialized countries. With the mass influx of immigrants to Qatar, patent intestinal parasitic infections have been observed. Herein, the prevalence of intestinal protozoan infections was analysed in 29,286 records of subjects referred for stool examination at the Hamad Medical Corporation over the course of a decade (2005 to 2014, inclusive)...
August 5, 2016: BMC Infectious Diseases
Min-Jae Kim, Bong-Kwang Jung, Jaeeun Cho, Deok-Gyu Kim, Hyemi Song, Keon-Hoon Lee, Seon Cho, Thi Thi Htoon, Htay Htay Tin, Jong-Yil Chai
Although intestinal protozoans are common etiologies of diarrhea, few studies have been conducted in Myanmar. This study planned to investigate the prevalence of Giardia lamblia, Entamoeba coli, Entamoeba histolytica, and Endolimax nana among schoolchildren and their guardians in suburban areas near Yangon, Myanmar. We performed a cross-sectional survey among schoolchildren and their guardians from 7 primary schools in South Dagon and Hlaing Thar Yar districts, Yangon, Myanmar. Stool samples were observed with a microscope after concentration technique and iodine staining...
June 2016: Korean Journal of Parasitology
Casper Sahl Poulsen, Christen Rune Stensvold
Of the so-called nonpathogenic intestinal protozoa, Endolimax nana belongs to the ones least well described. Most data on E. nana have emerged from general surveys of intestinal parasites in selected cohorts and mostly in the absence of any particular focus on Endolimax. Hence, the genus of Endolimax remains largely unexplored in terms of morphology, taxonomy, genetic diversity, host specificity, and epidemiology. In this review, we seek to provide an overview of the work that has been performed on the parasite since the genus Endolimax was described by Kuenen and Swellengrebel in 1917 and suggest activities that may pave the way for a better understanding of E...
January 2016: Tropical Parasitology
Maria Teresinha Gomes Casavechia, Maria Valdrinez Campana Lonardoni, Eneide Aparecida Sabaini Venazzi, Paula Aline Zanetti Campanerut-Sá, Hugo Rafael da Costa Benalia, Matheus Felipe Mattiello, Pedro Victor Lazaretti Menechini, Carlos Aparecido Dos Santos, Jorge Juarez Vieira Teixeira
Approximately 2 billion people are infected with soil-transmitted helminths worldwide, mainly in tropical and subtropical areas. This research aimed to investigate the prevalence and predictors associated with parasitic infections in primary health care. A cross-sectional study was performed with a large random sample to identify the prevalence and predictors associated with parasitic infections in primary health care in Marialva, southern Brazil, from April 2011 to September 2013. Stool samples from 775 individuals were analyzed for the presence of protozoan cysts, helminth eggs, and larvae...
June 2016: Parasitology Research
J R Dib, M V Fernández-Zenoff, J Oquilla, S Lazarte, S N González
A parasitological survey was conducted in children living in a poor area next to a drainage channel, in Tucumán province, Argentina. Stool specimens from 115 children were collected and samples were analyzed by direct microscopy examination and concentration techniques. The prevalence rate of intestinal parasites infection was high (78.3%) and Blastocystis hominis was the most frequent protozoan parasite found (68.9%) followed by Giardia intestinalis (33.3%), Entamoeba coli (24.4%), Endolimax nana (12.2%), Chilomastix mesnili (5...
June 2015: Tropical Biomedicine
G A Zavala, O P García, M Campos-Ponce, D Ronquillo, M C Caamaño, C M Doak, J L Rosado
BACKGROUND: Intestinal parasites, virus and bacterial infections are positively associated with obesity and adiposity in vitro and in animal models, but conclusive evidence of this relationship in humans is lacking. The aim of this cross-sectional study was to determine differences in adiposity between infected and non-infected children, with a high prevalence of intestinal parasitic infection and obesity. SUBJECTS: A total of 296 school-aged children (8.0 ± 1...
December 2016: Pediatric Obesity
Bárbara dos Santos Simões, George Luiz Lins Machado-Coelho, João Luiz Pena, Silvia Nascimento de Freitas
OBJECTIVE: To describe the environmental conditions and the parasitic infection status of Xukuru-Kariri individuals living in the municipality of Caldas, state of Minas Gerais, Brazil. METHODS: A cross-sectional study was carried out in March 2009. Sociodemographic and environmental data were collected through interviews. Water and fecal samples were collected for determination of environmental contamination and parasitic infection status. RESULTS: The Xukuru-Kariri population living in Caldas included 86 people divided into 22 families...
July 2015: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
Sergio Aurelio Zanzani, Alessia Libera Gazzonis, Sara Epis, Maria Teresa Manfredi
The aim of this study was to examine helminths and protozoans in cynomolgus macaques (Macaca fascicularis) imported from registered breeding facilities in China and their relation to health risks for non-human primate handlers in biomedical research centers and in breeding facilities. Fresh fecal samples were collected from a total of 443 M. fascicularis and analyzed by copromicroscopical analysis, immunoenzymatic, or molecular assays. As to helminths, whose eggs were shed in 2.03% of the samples, Trichuris and Oesophagostomum were the only two taxa found, with low prevalence and low eggs per gram (EPG) values...
January 2016: Parasitology Research
Antonio Neres-Norberg, Fabiano Guerra-Sanches, Paulo R Blanco Moreira-Norberg, José Tadeu Madeira-Oliveira, Aluízio Antonio Santa-Helena, Nicolau Maués Serra-Freire
OBJECTIVE: Considering that intestinal protozoans and helminths infect more than half of the world population, with high prevalence in the poorest regions, the objective of this study was to conduct parasitological research among indigenous Terena people established in the state of MatoGrosso do Sul. An inquiry was performed to find the incidence of parasitism in these communities. METHODOLOGY: 134 aliquots of feces from individuals of the indigenous community were examined...
November 2014: Revista de Salud Pública
Edna Donizetti Rossi Castro, Marcela Cristina Braga Yassaka Germini, Joana D'Arc Pereira Mascarenhas, Yvone Benchimol Gabbay, Ian Carlos Gomes de Lima, Patrícia dos Santos Lobo, Valéria Daltibari Fraga, Luciana Moran Conceição, Ricardo Luiz Dantas Machado, Andréa Regina Baptista Rossit
INTRODUCTION: The objective of this study was to determine the prevalence and etiological profile of enteropathogens in children from a daycare center. METHODS: From October 2010 to February 2011 stool samples from 100 children enrolled in a government daycare center in the municipality of São José do Rio Preto, in the state of São Paulo, were collected and analyzed. RESULTS: A total of 246 bacteria were isolated in 99% of the fecal samples; 129 were in the diarrheal group and 117 in the non-diarrheal group...
January 2015: Revista do Instituto de Medicina Tropical de São Paulo
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