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Blastocystis

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https://www.readbyqxmd.com/read/28725935/erratum-to-the-role-of-blastocystis-sp-and-dientamoeba-fragilis-in-irritable-bowel-syndrome-a-systematic-review-and-meta-analysis
#1
Ali Rostami, Seyed Mohammad Riahi, Ali Haghighi, Vafa Saber, Bahram Armon, Seyyed Javad Seyyedtabaei
No abstract text is available yet for this article.
July 18, 2017: Parasitology Research
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
#2
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/28674969/blastocystis-in-c%C3%A3-te-d-ivoire-molecular-identification-and-epidemiological-data
#3
R D'Alfonso, M Santoro, D Essi, A Monsia, Y Kaboré, C Glé, D Di Cave, R P Sorge, V Di Cristanziano, F Berrilli
Blastocystis is an enteric protozoan infecting humans and animals in both developed and developing countries at all latitudes. Despite this, data on Blastocystis infection are not available for several geographical areas, including many African countries. In this study, a survey was conducted on Blastocystis among humans and domestic animals in rural and urban localities in Côte d'Ivoire, in order to investigate the prevalence, the subtype distribution, and the zoonotic potential in association with sociodemographic factors, seasonality, symptoms, and co-infections...
July 4, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28668983/the-role-of-blastocystis-sp-and-dientamoeba-fragilis-in-irritable-bowel-syndrome-a-systematic-review-and-meta-analysis
#4
REVIEW
Ali Rostami, Seyed Mohammad Riahi, Ali Haghighi, Vafa Saber, Bahram Armon, Seyyed Javad Seyyedtabaei
Irritable bowel syndrome (IBS) is globally one of the most prevalent gastrointestinal disorders with a negative impact on quality of life and socio-economic status of patients. Recently, controversial evidences suggest that Blastocystis sp. and Dientamoeba fragilis infections may be implicated in the development of IBS. We performed a systematic review and meta-analysis to examine the possible association regarding this issue. PubMed, ScienceDirect, Scopus, Web of Science, and Cochrane electronic databases were searched (up to February 2017) to identify the relevant studies...
July 1, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28655674/infection-par-blastocystis
#5
P Bourée
No abstract text is available yet for this article.
June 1, 2017: Médecine et Santé Tropicales
https://www.readbyqxmd.com/read/28654083/targeted-metagenomic-sequencing-data-of-human-gut-microbiota-associated-with-blastocystis-colonization
#6
Léa Siegwald, Christophe Audebert, Gaël Even, Eric Viscogliosi, Ségolène Caboche, Magali Chabé
In the past decade, metagenomics studies have become widespread due to the arrival of second-generation sequencing platforms characterized by low costs, high throughput and short read lengths. Today, although benchtop sequencers are considered to be accurate platforms to deliver data for targeted metagenomics studies, the limiting factor has become the analysis of these data. In a previous paper, we performed an Ion Torrent PGM 16S rDNA gene sequencing of faecal DNAs from 48 Blastocystis-colonized patients and 48 Blastocystis-negative subjects, in order to decipher the impact of this widespread protist on gut microbiota composition and diversity...
June 27, 2017: Scientific Data
https://www.readbyqxmd.com/read/28648295/detection-and-prevalence-of-protozoan-parasites-in-ready-to-eat-packaged-salads-on-sale-in-italy
#7
Tiziana Caradonna, Marianna Marangi, Federica Del Chierico, Nicola Ferrari, Sofia Reddel, Giorgia Bracaglia, Giovanni Normanno, Lorenza Putignani, Annunziata Giangaspero
To investigate the prevalence of protozoan contamination by Giardia duodenalis, Cryptosporidium spp., Toxoplasma gondii and Cyclospora cayetanensis, in 'ready to eat' (RTE) salads on sale in Italy, 648 packages were purchased from industrial and local brands. Nine individual packages from each brand were collected per month, pooled and subjected to microscopy and molecular analyses. Microscopic examination of 864 slides detected Cryptosporidium spp. but also Blastocystis hominis and Dientamoeba fragilis. Molecular tools identified G...
October 2017: Food Microbiology
https://www.readbyqxmd.com/read/28647187/prevalence-and-risk-factors-of-blastocystis-infection-among-underprivileged-communities-in-rural-malaysia
#8
Nabilah Amelia Mohammad, Hesham M Al-Mekhlafi, Norhayati Moktar, Tengku Shahrul Anuar
OBJECTIVES: To determine the prevalence and risk factors of Blastocystis among underprivileged communities living in rural Malaysia. METHODS: This cross-sectional study was conducted among 253 participants aged between 1 and 85 years. Stool samples were examined using Wheatley's trichrome stain after in-vitro cultivation in Jones' medium to detect the presence of Blastocystis. Information pertaining to the demography, socioeconomic and environment were collected using pre-validated questionnaires...
May 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28619673/molecular-characterization-of-blastocystis-from-pigs-in-shaanxi-province-of-china
#9
Jun-Ke Song, Rui-Si Hu, Xian-Cheng Fan, Sha-Sha Wang, Hui-Jun Zhang, Guang-Hui Zhao
Blastocystis is an enteric eukaryote of mystery for its ubiquitous presence in animals and humans worldwide and a broad diversity genetically. The animals have been suggested to be an important reservoir to transmit Blastocystis to humans because of high colonization frequency and the presence of zoonotic subtypes. In the present study, the prevalence and subtypes of Blastocystis in pigs in Shaanxi province of China were determined using the molecular technique based on the small subunit rRNA (SSU rRNA) gene fragment...
June 12, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28614462/-cross-sectional-study-of-intestinal-parasitosis-in-child-populations-in-argentina
#10
Graciela Teresa Navone, María Lorena Zonta, Paola Cociancic, Mariela Garraza, María Inés Gamboa, Luis Alberto Giambelluca, Silvia Dahinten, Evelia Edith Oyhenart
Objective: Determine the distribution of intestinal parasitosis in children in nine provinces representative of Argentina's mosaic of contrasting environments. Methods: Descriptive, observational, cross-sectional study of preschool children (5 years old or under) and school-age children (6-14 years) in the provinces of Buenos Aires (sample taken between 2005 and 2013), Chubut (2010-2013), Corrientes (2012), Entre Ríos (2010-2012), Formosa (2014), La Pampa (2006), Mendoza (2008-2011), Misiones (2005-2008 and 2013), and Salta (2012-2013)...
June 8, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28603232/prevalence-of-intestinal-parasitoses-detected-in-padua-teaching-hospital-italy-march-2011-february-2013
#11
Andrea Bartolini, Giulia Zorzi, Valeria Besutti
The aim of this study was to evaluate the distribution of parasitic intestinal infections in patients attending Padua teaching hospital during a two-year period. Between 1st March 2011 and 28th February 2013, we examined stool specimens from 7341 patients (6127 Italians, 1214 non-Italians) for ova and parasites using microscopy, rapid enzyme immunoassays, culture techniques and molecular methods. Stools of 1080 patients (14.71%) were positive for parasites; a total of 1349 intestinal parasites were counted...
June 1, 2017: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/28599633/prevalence-of-intestinal-parasitic-infection-and-associated-risk-factors-among-village-health-volunteers-in-rural-communities-of-southern-thailand
#12
Chuchard Punsawad, Nonthapan Phasuk, Suchirat Bunratsami, Kanjana Thongtup, Niramon Siripakonuaong, Somchok Nongnaul
BACKGROUND: Intestinal parasitic infections remain prevalent and constitute a public health problem in certain rural areas of Thailand. Village health volunteers (VHVs), who are members of a Thai healthcare alliance, function as key providers of health prevention measures, disease control, and health education and share national health promotion campaigns with community members. This study is aimed at evaluating the prevalence, intensity, and risk factors for intestinal parasitic infection in VHVs in order to design community awareness and health education campaigns for the target population...
June 9, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28540508/molecular-characterization-of-blastocystis-sp-in-captive-wild-animals-in-qinling-mountains
#13
G H Zhao, X F Hu, T L Liu, R S Hu, Z Q Yu, W B Yang, Y L Wu, S K Yu, J K Song
Blastocystis is one common protist inhabiting in gastrointestinal tracts of animals and humans. Examining the subtypes has important implications for assessing the zoonotic potential of Blastocystis and intestinal health of hosts. In the present study, a total of 497 fecal samples collected from 37 wild animal species in Qinling Mountains were investigated for the presence and subtypes of Blastocystis. Of them, 200 (40.2%) were positive for Blastocystis and 13 subtypes were found, including eight known subtypes (STs1-3, 5, 10, 12-14) and five possible novel subtypes (temporarily named as STs18-22), with ST10 as the predominate subtype and the subtype ST5 was detected in an ostrich for the first time...
May 24, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28483729/presence-of-parasites-in-environmental-waters-in-samsun-and-its-districts
#14
Ülkü Karaman, Zeynep Kolören, Onuralp Seferoğlu, Emine Ayaz, Elif Demirel
OBJECTIVE: The aim of this study was to detect the presence of parasites in environmental waters in Samsun and its districts. METHODS: At the center of Samsun, 13 stations were determined. The research was performed between March 2012 and February 2013, and every month, water samples were collected on the dates stated. The samples were stained with Kinyoun acid-fast, modified trichrome, and trichrome dyes after examining with the direct bond. The preparations were evaluated in terms of parasitologic under a light microscope...
March 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/28413436/predominance-and-association-risk-of-blastocystis-hominis-subtype-i-in-colorectal-cancer-a-case-control-study
#15
Amr Mohamed Mohamed, Mona Abdelfattah Ahmed, Sabah Abdelghany Ahmed, Sherif Ahmed Al-Semany, Saad Saed Alghamdi, Dina Abdulla Zaglool
BACKGROUND: Blastocystis, a genetically diverse intestinal parasite with controversial pathogenic potential, has increasingly been incriminated for diarrheal illness in immunocompromised individuals including colorectal cancer (CRC) patients. The aim of the current study was to assess the possible association between Blastocystis infection and CRC condition in Makkah, Saudi Arabia (KSA). METHODS: Stool samples were collected from 80 non-cancer (NC) and 138 cancer subjects including 74 CRC patients and 64 patients with other cancers outside gastrointestinal tract (COGT)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28404232/pcr-based-molecular-characterization-of-blastocystis-hominis-subtypes-in-southwest-of-iran
#16
Shahram Khademvatan, Rahim Masjedizadeh, Ehsan Yousefi-Razin, Hamidreza Mahbodfar, Fakher Rahim, Elham Yousefi, Masoud Foroutan
Blastocystis hominis is the most common intestinal parasite found in humans and many other hosts. Pathogenicity of Blastocystis sp. remains controversial and it has been suggested that it may be associated with certain subtypes of organism. The aim of this study was to evaluate the molecular epidemiology of B. hominis and its subtype distribution in Ahvaz, southwest of Iran. During 2012-2014, a total of 481 samples were collected from patients referred to the medical laboratory centers in Ahvaz for stool examination...
April 9, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28388938/subtyping-of-blastocystis-sp-isolated-from-symptomatic-and-asymptomatic-individuals-in-makkah-saudi-arabia
#17
Raafat T Mohamed, Mohammed A El-Bali, Anhar A Mohamed, Mona A Abdel-Fatah, Mohamed A El-Malky, Nawras M Mowafy, Dina A Zaghlool, Rowaida A Bakri, Saeed A Al-Harthi
BACKGROUND: Blastocystis is a group of cosmopolitan gastrointestinal parasite of humans and a wide variety of animals. These anaerobic protozoans include more than 17 specific small-subunit ribosomal RNA subtypes, of which nine are found in humans with a variable geographical distribution. Until now, no study has described the Blastocystis subtypes present in Saudi Arabia. METHODS: In total, 1,262 faecal samples were collected from patients with gastrointestinal complaints and asymptomatic individuals visiting two major hospitals...
April 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28362138/intestinal-parasitic-infections-in-different-groups-of-immunocompromised-patients-in-kashan-and-qom-cities-central-iran
#18
Sima Rasti, Malihe Hassanzadeh, Hossein Hooshyar, Mansooreh Momen-Heravi, Seyed Gholam Abbas Mousavi, Amir Abdoli
INTRODUCTION: Intestinal parasitic infections (IPIs) are important causes of morbidity and mortality in patients with immunocompromising conditions. OBJECTIVE: The aim of this study was to determine the prevalence of IPIs in different groups of immunocompromised patients, including hemodialysis patients (HD), renal transplant recipients (RTR), cancer and HIV/AIDS patients in comparison with healthy individuals in two central cities of Iran (Kashan and Qom). METHODS: In this case-control study, the stool samples of 135 HD, 50 RTR, 60 cancer patients, 20 HIV/AIDS patients and 120 healthy subjects were tested using direct-smear, formol-ether concentration, Ziehl-Neelsen staining and Agar plate method...
June 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28326446/blastocystis-how-do-specific-diets-and-human-gut-microbiota-affect-its-development-and-pathogenicity
#19
REVIEW
M Lepczyńska, J Białkowska, E Dzika, K Piskorz-Ogórek, J Korycińska
Blastocystis is an enteric parasite that inhabits the gastrointestinal tract of humans and many animals. This emerging parasite has a worldwide distribution. It is often identified as the most common eukaryotic organism reported in human fecal samples. This parasite is recognized and diagnosed more often than ever before. Furthermore, some strains develop resistance against currently recommended drugs, such as metronidazole; therefore, the use of natural remedies or special diets has many positive aspects that may address this problem...
March 22, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28324738/protist-evolution-stealing-genes-to-gut-it-out
#20
David Moreira, Purificación López-García
The amount and evolutionary impact of horizontal gene transfer in eukaryotes remain contentious issues. A new phylogenomic study suggests that gene transfer from prokaryotes has contributed significantly to the adaptation and metabolic evolution of Blastocystis, the most widespread human gut eukaryotic parasite.
March 20, 2017: Current Biology: CB
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