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Strongyloides stercoralis

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https://www.readbyqxmd.com/read/29140240/case-report-strongyloides-stercoralis-hyperinfection-in-a-patient-with-chronic-lymphocytic-leukemia
#1
Richelle Guerrero-Wooley, Ernesto Aranda-Aguirre, Wencheng Li, Aimee Wilkin, Elizabeth Palavecino
Strongyloides stercoralis is an intestinal nematode that can cause disseminated infection in an immunocompromised host. It is most commonly acquired in developing countries. It was previously a common infection in many parts of the United States, particularly in the Appalachian region, but is rarely identified currently. Here, we describe a patient born and raised in Appalachia, with no history of travel outside the United States, who presented with chronic lymphocytic leukemia and S. stercoralis hyperinfection characterized by acute respiratory failure, altered mental status, and extended-spectrum-beta-lactamase Klebsiella pneumoniae bacteremia...
November 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29140233/case-report-a-case-of-recurrent-strongyloides-stercoralis-colitis-in-a-patient-with-multiple-myeloma
#2
Keith Glenn, David A Lindholm, Gregory Meis, Luisa Watts, Nicholas Conger
Strongyloides stercoralis chronic infection is frequently subclinical and thus under-recognized, although its increasing prevalence in nonendemic regions has implications for immunocompromised hosts. We present a 75-year-old male with stage II multiple myeloma who presented with relapse of Strongyloides infection after initial treatment, negative surveillance testing, and subsequent resumption of chemotherapy for his multiple myeloma. The optimal regimen for secondary prophylaxis against recurrent infections is unknown...
November 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29114491/reactive-arthritis-associated-with-strongyloides-stercoralis-report-of-an-uncommon-relation
#3
Srujana Mohanty, Madhusudan Samprathi, Sucheta Parija
No abstract text is available yet for this article.
July 2017: Tropical Parasitology
https://www.readbyqxmd.com/read/29114485/laboratory-diagnosis-of-soil-transmitted-helminthiasis
#4
Sumeeta Khurana, Shveta Sethi
Soil-transmitted helminths (STHs) include, i.e., hookworms (Ancylostoma duodenale, Necator americanus), roundworm (Ascaris lumbricoides), whipworm (Trichuris trichiura) and Strongyloides stercoralis. Globally, around 1.5 billion people are infected with STHs. STHs contribute to significant impairment of mental and physical growth, especially in developing countries. Unfortunately, these infections mostly remain undiagnosed due to lack of trained personnel and appropriate technologies. Intermittent shedding of eggs or larvae further makes the diagnosis difficult...
July 2017: Tropical Parasitology
https://www.readbyqxmd.com/read/29108026/status-of-soil-transmitted-helminth-infections-in-schoolchildren-in-laguna-province-the-philippines-determined-by-parasitological-and-molecular-diagnostic-techniques
#5
Mary Lorraine S Mationg, Catherine A Gordon, Veronica L Tallo, Remigio M Olveda, Portia P Alday, Mark Donald C Reñosa, Franziska A Bieri, Gail M Williams, Archie C A Clements, Peter Steinmann, Kate Halton, Yuesheng Li, Donald P McManus, Darren J Gray
BACKGROUND: Soil-transmitted helminths (STH) are the most common parasitic infections in impoverished communities, particularly among children. Current STH control is through school-based mass drug administration (MDA), which in the Philippines is done twice annually. As expected, MDA has decreased the intensity and prevalence of STH over time. As a result, the common Kato Katz (KK) thick smear method of detecting STH is less effective because it lacks sensitivity in low intensity infections, making it difficult to measure the impact of deworming programs...
November 6, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29103274/status-and-risk-factors-of-strongyloides-stercoralis-infection-in-rural-communities-of-xayaburi-province-lao-pdr
#6
Phasouk Senephansiri, Porntip Laummaunwai, Sakorn Laymanivong, Thidarut Boonmar
The present study was performed to reveal the current status and risk factors of Strongyloides stercoralis infections in the villages of Kenethao district, Xayaburi Province, Lao PDR. Fecal specimens were collected and examined for S. stercoralis using Koga-agar plate culture technique. Among 516 individuals, the prevalence of S. stercoralis and hookworm infection was 44.2% and 17.1%, respectively. Co-infection was detected in 13.2% of the cases. The prevalence did not significantly differ between males and females (P=0...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29103267/intestinal-parasitic-infections-and-environmental-water-contamination-in-a-rural-village-of-northern-lao-pdr
#7
Alexis Ribas, Chloé Jollivet, Serge Morand, Boupha Thongmalayvong, Silaphet Somphavong, Chern-Chiang Siew, Pei-Jun Ting, Saipin Suputtamongkol, Viengsaene Saensombath, Surapol Sanguankiat, Boon-Huan Tan, Phimpha Paboriboune, Kongsap Akkhavong, Kittipong Chaisiri
A field survey studying intestinal parasites in humans and microbial pathogen contamination at environment was performed in a Laotian rural village to identify potential risks for disease outbreaks. A parasitological investigation was conducted in Ban Lak Sip village, Luang Prabang, Lao PDR involving fecal samples from 305 inhabitants as well as water samples taken from 3 sites of the local stream. Water analysis indicated the presence of several enteric pathogens, i.e., Aeromonas spp., Vibrio spp., E. coli H7, E...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29062711/strongyloides-hyperinfection-syndrome-causing-fatal-meningitis-and-septicemia-by-citrobacter-koseri
#8
Felix Reyes, Navneet Singh, Nigar Anjuman-Khurram, Jihae Lee, Lillian Chow
Citrobacter koseri is a gram-negative bacillius that belongs to the Enterobacteriaceae family. It is an uncommon pathogen that typically causes meningitis and brain abscesses in children, however central nervous system (CNS) infections are rarely found in adults. We present a case of C. koseri meningitis in an immunocompetent adult secondary to intestinal micro-perforation caused by Strongyloides A 76-year-old man admitted for asthma exacerbation developed septic shock. A lumbar puncture revealed bacterial meningitis...
2017: IDCases
https://www.readbyqxmd.com/read/29059195/strongyloides-stercoralis-is-associated-with-significant-morbidity-in-rural-cambodia-including-stunting-in-children
#9
Armelle Forrer, Virak Khieu, Fabian Schär, Jan Hattendorf, Hanspeter Marti, Andreas Neumayr, Meng Chuor Char, Christoph Hatz, Sinuon Muth, Peter Odermatt
BACKGROUND: Strongyloides stercoralis is a soil-transmitted nematode that can replicate within its host, leading to long-lasting and potentially fatal infections. It is ubiquitous and highly prevalent in Cambodia. The extent of morbidity associated with S. stercoralis infection is difficult to assess due to the broad spectrum of symptoms and, thus, remains uncertain. METHODOLOGY/PRINCIPAL FINDINGS: Clinical signs were compared among S. stercoralis infected vs. non-infected participants in a cross-sectional survey conducted in 2012 in eight villages of Northern Cambodia, and before and after treatment with a single oral dose of ivermectin (200μg/kg BW) among participants harboring S...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29039287/strongyloides-stercoralis-seroprevalence-in-vietnam
#10
Nguyen Thi Ngoc Diep, Pham Quang Thai, Nghiem Nguyen Minh Trang, Julia Jäger, Annette Fox, Peter Horby, Hoang Vu Mai Phuong, Dang Duc Anh, LE Thi Quynh Mai, H Rogier VAN Doorn, Behzad Nadjm
Strongyloidiasis is a neglected tropical disease caused by the roundworm Strongyloides stercoralis affecting 30-100 million people worldwide. Many Southeast-Asian countries report a high prevalence of S. stercoralis infection, but there are little data from Vietnam. Here, we evaluated the seroprevalence of S. stercoralis related to geography, sex and age in Vietnam through serological testing of anonymized sera. Sera (n = 1710, 1340 adults and 270 children) from an anonymized age-stratified serum bank from four regions in Vietnam between 2012 and 2013 were tested using a commercial Strongyloides ratti immunoglobulin G ELISA...
October 17, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/29026374/geophagy-as-risk-behaviour-for-gastrointestinal-nematode-infections-among-pregnant-women-attending-antenatal-clinics-in-a-humid-tropical-zone-of-nigeria
#11
Njoku Ivoke, Nnenna Ikpor, Obinna Ivoke, Felicia Ekeh, Ngozi Ezenwaji, Gregory Odo, Florence Iyaji, Uwakwe Onoja, Joseph Eyo
BACKGROUND: Geophagy is wide spread among pregnant women in Ebonyi State, Nigeria. OBJECTIVE: The aim of this study was to assess intestinal nematode infections among geophagous pregnant women in Southern Ebonyi State, Nigeria. METHODS: Pregnant women were aged 17-45 years at gestational ages of ≥ 14 to 24 weeks on hospital enrolment were sampled. Data on geophagy was collected using structured questionnaire. Gastrointestinal nematode status of the participants was determined by stool analyses...
March 2017: African Health Sciences
https://www.readbyqxmd.com/read/29016680/targeted-mutagenesis-in-a-human-parasitic-nematode
#12
Spencer S Gang, Michelle L Castelletto, Astra S Bryant, Emily Yang, Nicholas Mancuso, Jacqueline B Lopez, Matteo Pellegrini, Elissa A Hallem
Parasitic nematodes infect over 1 billion people worldwide and cause some of the most common neglected tropical diseases. Despite their prevalence, our understanding of the biology of parasitic nematodes has been limited by the lack of tools for genetic intervention. In particular, it has not yet been possible to generate targeted gene disruptions and mutant phenotypes in any parasitic nematode. Here, we report the development of a method for introducing CRISPR-Cas9-mediated gene disruptions in the human-parasitic threadworm Strongyloides stercoralis...
October 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29016326/human-intestinal-parasite-burden-and-poor-sanitation-in-rural-alabama
#13
Megan L McKenna, Shannon McAtee, Patricia E Bryan, Rebecca Jeun, Tabitha Ward, Jacob Kraus, Maria E Bottazzi, Peter J Hotez, Catherine C Flowers, Rojelio Mejia
Hookworm infection affects 430 million people worldwide, causing iron deficiency, impaired cognitive development, and stunting in children. Because of the environmental conditions needed for the hookworm life-cycle, this parasite is endemic to resource-limited countries. Necator americanus was endemic in the southern United States before improvement of sewage disposal systems and eradication programs. With continued poverty, poor sanitation, and an environment suitable for the hookworm life-cycle in some regions of the southern United States, a current prevalence study using modern molecular diagnostics is warranted...
September 5, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28991899/albendazole-and-ivermectin-for-the-control-of-soil-transmitted-helminths-in-an-area-with-high-prevalence-of-strongyloides-stercoralis-and-hookworm-in-northwestern-argentina-a-community-based-pragmatic-study
#14
Adriana Echazú, Marisa Juarez, Paola A Vargas, Silvana P Cajal, Ruben O Cimino, Viviana Heredia, Silvia Caropresi, Gladys Paredes, Luis M Arias, Marcelo Abril, Silvia Gold, Patrick Lammie, Alejandro J Krolewiecki
BACKGROUND: Recommendations for soil-transmitted helminth (STH) control give a key role to deworming of school and pre-school age children with albendazole or mebendazole; which might be insufficient to achieve adequate control, particularly against Strongyloides stercoralis. The impact of preventive chemotherapy (PC) against STH morbidity is still incompletely understood. The aim of this study was to assess the effectiveness of a community-based program with albendazole and ivermectin in a high transmission setting for S...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28988405/a-case-of-adenocarcinoma-developed-in-the-small-intestine-with-chronic-strongyloidiasis
#15
Satoshi Ishikawa, Tamaki Maeda, Kimiaki Hattori, Takahiro Watanabe, Takanori Kuramoto, Saori Ueno, Goro Ueno, Tadahiro Yamada, Akifumi Kanazawa, Masahiro Sakaguchi, Yoshitane Tsukamoto
We experienced a case of intestinal strongyloidiasis complicated by jejunal carcinoma. A Japanese male in his 50s, who has a 7-year medical history of duodenal ulcers, complained of loss of appetite, nausea, vomiting and diarrhea. Computed tomography and gastroduodenal endoscopic examination revealed a stenosis of the duodenum. To remove the stenosis, gastric bypass surgery was performed. The pathological diagnosis of the resected jejunum was strongyloidiasis and well-differentiated adenocarcinoma with subserosal invasion and vascular infiltration...
October 7, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28970717/helminths-as-an-alternative-therapy-for-intestinal-diseases
#16
EDITORIAL
Aytan Miranda Sipahi, Daniel Machado Baptista
Animal models and clinical studies have shown that helminth infections exert immunomodulatory activity, altering intestinal permeability and providing a potential beneficial action on autoimmune and inflammatory disorders in human beings, such as inflammatory bowel disease (IBD) and celiac disease. This is consistent with the theory that intestinal microbiota is responsible for shaping human immunological responses. With the arrival of the immunobiologic era and the use of antibodies, we propose a distinctive pathway for treating patients with IBD and celiac disease...
September 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28969935/avidity-as-a-criterion-for-diagnosis-of-human-strongyloidiasis-increases-specificity-of-igg-elisa
#17
Larissa Rodrigues Bosqui, Henrique Tomaz Gonzaga, Maria do Rosário de Fátima Gonçalves-Pires, Fabiana Martins de Paula, Ricardo Sergio Almeida, Wander Rogério Pavanelli, Ivete Conchon-Costa, Julia Maria Costa-Cruz, Idessania Nazareth da Costa
This study evaluates the inclusion of the IgG avidity index in ELISA to detect anti-Strongyloides stercoralis IgG. The ELISA index revealed 70% of specificity. With the inclusion of screening AI, specificity increased to 80%. IgG avidity complemented traditional IgG ELISA by eliminating some of the suspected or false positive cases.
December 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28951343/the-relationship-between-treatment-for-strongyloides-stercoralis-infection-and-type-2-diabetes-mellitus-in-an-australian-aboriginal-population-a-three-year-cohort-study
#18
Russell Hays, Paul Giacomin, Lennart Olma, Adrian Esterman, Robyn McDermott
AIM: To determine the effect of treatment for Strongyloides stercoralis infection on type 2 diabetes mellitus in an Australian Aboriginal population. METHODS: A three-year cohort study of 259 Aboriginal adults living in northern Australia. Subjects were tested for S. stercoralis infection, diabetic status and HbA1c at recruitment. 92 subjects were ELISA positive for S. stercoralis and 91 were treated with two doses of ivermectin 0.2mg/kg. Serological cure was assessed after 6months and those who remained positive were retreated...
September 23, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28942408/asymptomatic-pyogenic-liver-abscesses-secondary-to-fusobacterium-nucleatum-and-streptococcus-vestibularis-in-an-immunocompetent-patient
#19
Hamish Houston, Kartik Kumar, Salman Sajid
A 66-year-old male patient presented with symptoms and signs of L4/5 radiculopathy. He was found to be anaemic with elevated inflammatory markers and deranged hepatic enzymes. Imaging revealed lumbar canal stenosis and the presence of pyogenic liver abscesses from which Fusobacterium nucleatum and Streptococcus vestibularis were isolated. The hepatic abscesses were attributed to asymptomatic diverticular perforation. Multiple coexisting incidental infections were discovered, including oesophageal candidiasis, Helicobacter pylori, stool cultures positive for Strongyloides stercoralis, and sputum cultures positive for Enterobacter cloacae, Escherichia coli and Mycobacterium avium Extensive investigations for possible underlying immunosuppression were negative...
September 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28939495/seroprevalence-of-strongyloides-stercoralis-infection-among-htlv-i-infected-blood-donors-in-barcelona-spain-a-cross-sectional-study
#20
Fernando Salvador, Elena Sulleiro, Maria Piron, Adrián Sánchez-Montalvá, Silvia Sauleda, Israel Molina
Strongyloides stercoralis infection in patients with HTLV-I infection may lead to severe clinical manifestations. The aim of the present study is to determine the seroprevalence of S. stercoralis infection among blood donors who tested positive for HTLV-I infection. A cross-sectional study was performed at the Vall d'Hebron University Hospital (Barcelona, Spain) in 2016. Serum samples from HTLV-I positive patients diagnosed from 2008 to 2015 were retrieved from the Blood Bank, and S. stercoralis serology was performed...
December 2017: Acta Tropica
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