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Cryptosporidium

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https://www.readbyqxmd.com/read/28741341/comments-on-article-%C3%A2-molecular-characterization-and-phylogenetic-analysis-of-microsporidia-and-cryptosporidium-spp-in-patients-with-multiple-bowel-biopsies-from-fars-province-iran%C3%A2
#1
COMMENT
https://www.readbyqxmd.com/read/28740461/down-for-the-count-cryptosporidium-infection-depletes-the-gut-microbiome-in-coquerel-s-sifakas
#2
Erin A McKenney, Lydia K Greene, Christine M Drea, Anne D Yoder
Background: The gut microbiome (GMB) is the first line of defense against enteric pathogens, which are a leading cause of disease and mortality worldwide. One such pathogen, the protozoan Cryptosporidium, causes a variety of digestive disorders that can be devastating and even lethal. The Coquerel's sifaka (Propithecus coquereli) - an endangered, folivorous primate endemic to Madagascar - is precariously susceptible to cryptosporidiosis under captive conditions. If left untreated, infection can rapidly advance to morbidity and death...
2017: Microbial Ecology in Health and Disease
https://www.readbyqxmd.com/read/28734513/cryptosporidium-and-giardia-infections-in-children-a-review
#3
REVIEW
Blandina T Mmbaga, Eric R Houpt
Diarrheal disease remains the second leading cause of mortality in children in developing countries. Cryptosporidium is a leading cause and its importance stands to increase as rotavirus vaccine becomes used around the world. Cryptosporidium is particularly problematic in children younger than 2 years old and in the immunocompromised. Giardia lamblia is a common intestinal protozoan that is associated with diarrhea and, perhaps, growth faltering in impoverished settings. This review establishes the current prevalence of these infections in global settings and reviews current diagnosis and management approaches...
August 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28730516/cryptosporidium-infection-in-children-with-cancer-undergoing-chemotherapy-how-important-is-the-prevention-of-opportunistic-parasitic-infections-in-patients-with-malignancies
#4
Reza Berahmat, Mahmoud Mahami-Oskouei, Azim Rezamand, Adel Spotin, Nayyereh Aminisani, Roghayeh Ghoyounchi, Solmaz Madadi
Cryptosporidiosis is a relatively uncommon disease in healthy individuals but could be potentially worrisome in immunocompromised patients. This study aimed to evaluate Cryptosporidium infection in children with cancer undergoing chemotherapy. A case-control study was conducted in 132 children with cancer undergoing chemotherapy and 132 non-cancer controls. The modified Ziehl-Neelsen (MZN) staining and polymerase chain reaction methods were used for the detection of Cryptosporidium parasite. All positive isolates were sequenced for phylogenetic analysis...
July 20, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28722573/killing-of-cryptosporidium-sporozoites-by-lactoferrin
#5
Jose Luis Paredes, Hayley Sparks, A Clinton White, Griselle Martinez-Traverso, Theresa Ochoa, Alejandro Castellanos-González
Intestinal infection caused by Cryptosporidium is a major contributor to diarrhea morbidity and mortality in young children around the world. Current treatments for children suffering from cryptosporidiosis are suboptimal. Lactoferrin is a glycoprotein found in breast milk. It has showed bacteriostatic and antimicrobial activity in the intestine. However, the effects of lactoferrin on the intestinal parasite Cryptosporidium have not been reported. In this study, we investigated the anticryptosporidial activity of human lactoferrin on different stages of Cryptosporidium...
July 3, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28720110/molecular-characterisation-of-protist-parasites-in-human-habituated-mountain-gorillas-gorilla-beringei-beringei-humans-and-livestock-from-bwindi-impenetrable-national-park-uganda
#6
Matthew J Nolan, Melisa Unger, Yuen-Ting Yeap, Emma Rogers, Ilary Millet, Kimberley Harman, Mark Fox, Gladys Kalema-Zikusoka, Damer P Blake
BACKGROUND: Over 60 % of human emerging infectious diseases are zoonotic, and there is growing evidence of the zooanthroponotic transmission of diseases from humans to livestock and wildlife species, with major implications for public health, economics, and conservation. Zooanthroponoses are of relevance to critically endangered species; amongst these is the mountain gorilla (Gorilla beringei beringei) of Uganda. Here, we assess the occurrence of Cryptosporidium, Cyclospora, Giardia, and Entamoeba infecting mountain gorillas in the Bwindi Impenetrable National Park (BINP), Uganda, using molecular methods...
July 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28719331/factors-associated-with-the-duration-of-moderate-to-severe-diarrhea-among-children-in-rural-western-kenya-enrolled-in-the-global-enteric-multicenter-study-2008-2012
#7
Katharine A Schilling, Richard Omore, Gordana Derado, Tracy Ayers, John B Ochieng, Tamer H Farag, Dilruba Nasrin, Sandra Panchalingam, James P Nataro, Karen L Kotloff, Myron M Levine, Joseph Oundo, Michelle B Parsons, Cheryl Bopp, Kayla Laserson, Christine E Stauber, Richard Rothenberg, Robert F Breiman, Ciara E O'Reilly, Eric D Mintz
Diarrheal disease is a leading cause of death among young children worldwide. As rates of acute diarrhea (AD; 1-6 days duration) have decreased, persistent diarrhea (PD; > 14 days duration) accounts for a greater proportion of the diarrheal disease burden. We describe factors associated with the duration of moderate-to-severe diarrhea in Kenyan children < 5 years old enrolled in the Global Enteric Multicenter Study. We found 587 (58%) children experienced AD, 360 (35%) had prolonged acute diarrhea (ProAD; 7-13 days duration), and 73 (7%) had PD...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28716138/prevalence-of-enteric-infections-among-hospitalized-patients-in-two-referral-hospitals-in-ghana
#8
R Akuffo, G Armah, M Clemens, K C Kronmann, A H Jones, P Agbenohevi, K Sagoe, N Puplampu, N Talla Nzussouo, W Ampofo, K Koram, C Duplessis, E Dueger
BACKGROUND: Diarrhea is an important cause of morbidity and mortality worldwide. In Africa and Ghana in particular, it is estimated to contribute directly to 19 and 25% of pediatric mortality among children under 5 years, respectively. METHODS: Surveillance for hospitalized acute diarrheal illness was initiated in November 2010 through October 2012 in a referral hospital in southern Ghana, and a teaching hospital in northern Ghana. Consenting hospitalized patients who met a standardized case definition for acute diarrheal illness provided demographic and epidemiologic data...
July 17, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28704362/local-and-global-genetic-diversity-of-protozoan-parasites-spatial-distribution-of-cryptosporidium-and-giardia-genotypes
#9
Juan C Garcia-R, Nigel French, Anthony Pita, Niluka Velathanthiri, Rima Shrestha, David Hayman
Cryptosporidiosis and giardiasis are recognized as significant enteric diseases due to their long-term health effects in humans and their economic impact in agriculture and medical care. Molecular analysis is essential to identify species and genotypes causing these infectious diseases and provides a potential tool for monitoring. This study uses information on species and genetic variants to gain insights into the geographical distribution and spatial patterns of Cryptosporidium and Giardia parasites. Here, we describe the population heterogeneity of genotypic groups within Cryptosporidium and Giardia present in New Zealand using gp60 and gdh markers to compare the observed variation with other countries around the globe...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28702138/prevalence-and-clinical-features-of-cryptosporidium-infection-in-hemodialysis-patients
#10
Mohammad Ali Mohaghegh, Seyed Hossein Hejazi, Mohsen Ghomashlooyan, Hamed Kalani, Farzaneh Mirzaei, Mehdi Azami
AIM: This cross-sectional study aims to assess the prevalence of Cryptosporidium in hemodialysis patients compared with healthy individuals in central Iran from August 2014 to January 2015. BACKGROUND: Cryptosporidiosis is a major cause of acute and persistent diarrhea with significant morbidity and mortality in immunocompromised patients such as those undergoing renal dialysis. METHODS: Three stool samples were collected from 330 hemodialysis patients and 150 healthy individuals on 3 consecutive days...
2017: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28691033/prevalence-of-toxoplasma-gondii-and-other-gastrointestinal-parasites-in-domestic-cats-from-households-in-thika-region-kenya
#11
Adele Nyambura Njuguna, John Maina Kagira, Simon Muturi Karanja, Maina Ngotho, Lucy Mutharia, Naomi Wangari Maina
Gastrointestinal (GIT) parasites of domestic cats (Felis catus) not only cause morbidity but are also potential zoonotic agents. The current study aimed at establishing the prevalence of GIT parasites in cats kept by households in Thika region, Kenya. Fecal samples were collected randomly from 103 cats and analyzed for presence of parasites using standard parasitological methods. In descending order, the prevalence of the detected protozoa parasites was Isospora spp. 43.7% (95% CI: 40.4-47%), Cryptosporidium spp...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28690727/-clinical-and-immunological-profile-of-15-moroccan-patients-with-hyper-igm-syndrome
#12
Hind Ouair, Ibtihal Benhsaien, Leila Jeddane, Jalila El Bakkouri, Naima Elhafidi, Noureddine Rada, Jilali Najib, Fatima Ailal, Hanane Salih Alj, Ahmed Aziz Bousfiha
Hyper IgM syndrome is a well known genetic (primary) immunodeficiency disorder which was first described in 1961. It is caused by B lymphocyte deficiency characterized by normal or elevated serum IgM levels and low or zero levels of IgG, IgA, IgE resulting from isotype-switching deficiency. Clinical manifestations are dominated by recurrent infections, especially involving the digestive tube of the ENT sphere and the lungs. This syndrome is caused by B-cell immunoglobulin class switch deficiency and decreased capacity to induce proliferation of T lymphocytes...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28682780/intestinal-coccidian-parasites-as-an-underestimated-cause-of-travellers-diarrhoea-in-polish-immunocompetent-patients
#13
Matylda Kłudkowska, Łukasz Pielok, Krystyna Frąckowiak, Małgorzata Paul
Intestinal coccidian parasites are intracellular protozoa most frequently transmitted during food-borne and water-borne infections. This group of parasites is responsible for acute diarrhoeal illnesses especially among immunocompromised patients. However, they are more frequently detected in immunocompetent individuals including travellers, and they should also be considered as important etiologic factors of travellers' diarrhoea. We examined 221 immunocompetent patients hospitalized due to acute or chronic diarrhoea and other gastrointestinal symptoms after returning from international journeys to hot climates...
September 26, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28682770/the-prevalence-of-cyclospora-cayetanensis-and-cryptosporidium-spp-in-turkish-patients-infected-with-hiv-1
#14
Hayriye Kirkoyun Uysal, Gokhan Tolga Adas, Kevser Atalik, Semih Altiparmak, Ozer Akgul, Suat Saribas, Mert Gurcan, Pelin Yuksel, Taner Yildirmak, Bekir Kocazeybek, Tevhide Ziver, Yasar Ali Oner
Opportunistic infections such as cryptosporidiosis and cyclosporiasis are commonly encountered in patients with acquired immunodeficiency syndrome (AIDS). We investigated the existence of opportunistic protozoans that significantly affect the quality of life in HIV-1 infected patients using conventional and molecular methods. The study group comprised 115 HIV-1 positive patients. In the identification of Cyclospora cayetanensis and Cryptosporidium, the formol-ether precipitation method was used and smears were evaluated in optical microscope by staining modified Ziehl-Neelsen (ZN)...
September 26, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28674885/red-blood-cells-in-clinical-proteomics
#15
Ana Sofia Carvalho, Manuel S Rodriguez, Rune Matthiesen
Red blood cells (RBCs) are known for their role in oxygen and carbon dioxide transport. The main function of RBCs is directly linked to many diseases that cause low oxygen levels in tissues such as congenital heart disease in adults, chronic obstructive pulmonary disease, sleep apnea, sickle cell disease, etc. Red blood cells are a direct target for a number of parasitic diseases such as malaria (Plasmodium) and similar parasites of the phylum Apicomplexa (Toxoplasma, Theileria, Eimeria, Babesia, and Cryptosporidium)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28671392/recreational-waterborne-illnesses-recognition-treatment-and-prevention
#16
Allen Perkins, Marirose Trimmier
Illness after recreational water activities can be caused by a variety of agents, including bacteria, viruses, parasites, algae, and even chlorine gas. These illnesses are more common in summer. Waterborne illnesses are underreported because most recreational activity occurs in unsupervised venues or on private property, and participants tend to disperse before illness occurs. Symptoms of waterborne illness are primarily gastrointestinal, but upper respiratory and skin manifestations also occur. Gastrointestinal symptoms are usually self-limited, and supportive treatment may be all that is necessary...
May 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28668658/evaluation-of-enzyme-linked-immunosorbent-assay-for-stool-antigen-detection-for-the-diagnosis-of-cryptosporidiosis-among-hiv-negative-immunocompromised-patients-in-a-tertiary-care-hospital-of-northern-india
#17
Ujjala Ghoshal, Vidhi Jain, Asmita Dey, Prabhat Ranjan
The diagnosis of cryptosporidiosis among HIV positive patients has been the focus of many studies worldwide. However, there is a paucity of data on HIV negative immunocompromised patients like post-renal transplant recipients and those with haematological malignancies. Stool microscopy, the conventional method of diagnosis, is fraught with difficulties like cumbersome sample processing and subjective interpretation. Enzyme linked immunosorbent assay (ELISA), on the other hand, is quicker and easier. The present study was conducted in a tertiary care and super speciality hospital of north India...
June 28, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28658417/evaluation-of-recombinant-cryptosporidium-hominis-gp60-protein-and-anti-gp60-chicken-polyclonal-igy-for-research-and-diagnostic-purposes
#18
Valéria Chamas Miura, Sérgio Moraes Aoki, Paulo Peitl, Lilian Campos Pires, Priscila Dalmagro, Alex Akira Nakamura, Marcelo Vasconcelos Meireles
In this study, a method for expressing Cryptosporidium hominis GP60 glycoprotein in Escherichia coli for production of polyclonal anti-GP60 IgY in chickens was developed aiming future studies concerning the diagnosis, prevention and treatment of cryptosporidiosis. The full-length nucleotide sequence of the C. hominis gp60 gene was codon-optimized for expression in E. coli and was synthesized in pET28-a vector. Subcloning was performed on several different strains of BL21 E. coli. Temperature, time and inducer IPTG concentration assays were also performed and analyzed using SDS-PAGE...
June 22, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28655825/a-plastid-protein-that-evolved-from-ubiquitin-and-is-required-for-apicoplast-protein-import-in-toxoplasma-gondii
#19
Justin D Fellows, Michael J Cipriano, Swati Agrawal, Boris Striepen
Apicomplexan parasites cause a variety of important infectious diseases, including malaria, toxoplasma encephalitis, and severe diarrhea due to Cryptosporidium Most apicomplexans depend on an organelle called the apicoplast which is derived from a red algal endosymbiont. The apicoplast is essential for the parasite as the compartment of fatty acid, heme, and isoprenoid biosynthesis. The majority of the approximate 500 apicoplast proteins are nucleus encoded and have to be imported across the four membranes that surround the apicoplast...
June 27, 2017: MBio
https://www.readbyqxmd.com/read/28655069/delivery-of-parasite-cdg7_flc_0990-rna-transcript-into-intestinal-epithelial-cells-during-cryptosporidium-parvum-infection-suppresses-host-cell-gene-transcription-through-epigenetic-mechanisms
#20
Yang Wang, Ai-Yu Gong, Shibin Ma, Xiqiang Chen, Juliane K Strauss-Soukup, Xian-Ming Chen
Cryptosporidial infection causes dysregulated transcription of host genes key to intestinal epithelial homeostasis, but the underlying mechanisms remain obscure. Previous studies demonstrate that several C. parvum RNA transcripts are selectively delivered into epithelial cells during host cell invasion and may modulate gene transcription in infected cells. We report here that C. parvum infection suppresses the transcription of LRP5, SLC7A8, and IL33 genes in infected intestinal epithelium. Trans-suppression of these genes in infected host cells is associated with promoter enrichment of suppressive epigenetic markers (i...
June 27, 2017: Cellular Microbiology
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