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https://www.readbyqxmd.com/read/28346473/oral-administration-of-bifidobacterium-bifidum-g9-1-alleviates-rotavirus-gastroenteritis-through-regulation-of-intestinal-homeostasis-by-inducing-mucosal-protective-factors
#1
Tomohiro Kawahara, Yutaka Makizaki, Yosuke Oikawa, Yoshiki Tanaka, Ayako Maeda, Masaki Shimakawa, Satoshi Komoto, Kyoko Moriguchi, Hiroshi Ohno, Koki Taniguchi
Human rotavirus (RV) infection is a leading cause of dehydrating diarrhea in infants and young children worldwide. Since therapeutic approaches to RV gastroenteritis are limited to alleviation of dehydration with oral rehydration solutions, more direct approaches to palliate symptoms of RV gastroenteritis are required. Treatments with probiotics have been increasingly recognized as alternative safe and low cost treatments for moderate infectious diarrhea. In this study, Bifidobacterium bifidum G9-1 (BBG9-1), which has been used as an intestinal drug for several decades, was shown to have a remarkable protective effect against RV gastroenteritis in a suckling mice model...
2017: PloS One
https://www.readbyqxmd.com/read/28336217/pathogenic-mechanisms-of-cryptosporidium-and-giardia
#2
REVIEW
Gabriela Certad, Eric Viscogliosi, Magali Chabé, Simone M Cacciò
Intestinal protozoa are important etiological agents of diarrhea, particularly in children, yet the public health risk they pose is often neglected. Results from the Global Enteric Multicenter Study (GEMS) showed that Cryptosporidium is among the leading causes of moderate to severe diarrhea in children under 2 years. Likewise, Giardia infects approximately 200 million individuals worldwide, and causes acute diarrhea in children under 5 years. Despite this recognized role as pathogens, the question is why and how these parasites cause disease in some individuals but not in others...
March 20, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28335454/porcine-rotaviruses-epidemiology-immune-responses-and-control-strategies
#3
REVIEW
Anastasia N Vlasova, Joshua O Amimo, Linda J Saif
Rotaviruses (RVs) are a major cause of acute viral gastroenteritis in young animals and children worldwide. Immunocompetent adults of different species become resistant to clinical disease due to post-infection immunity, immune system maturation and gut physiological changes. Of the 9 RV genogroups (A-I), RV A, B, and C (RVA, RVB, and RVC, respectively) are associated with diarrhea in piglets. Although discovered decades ago, porcine genogroup E RVs (RVE) are uncommon and their pathogenesis is not studied well...
March 18, 2017: Viruses
https://www.readbyqxmd.com/read/28334725/predominance-of-g9p-4-rotavirus-from-children-with-acute-gastroenteritis-in-northwestern-mexico
#4
Leticia Felix-Valenzuela, Dora Patricia Cooley-García, Manuel Alberto Cano-Rangel, Maria de Los Angeles Durazo-Arvizu, Veronica Mata-Haro
In Mexico, group A rotavirus (RVA) infections remain the most common cause of severe dehydrating diarrhea in children. This study was conducted to examine the circulating RVA strains in the northwest region of Mexico. RVA strains collected from stool samples of children were genotyped, and their partial sequences were analyzed. RT-PCR of the VP4 and VP7 genes showed the partial G9P[4] genotype in all the samples. Sequencing and phylogenetic analysis of the partial VP7 gene amplicons of 10 strains showed that they clustered in the RVA G9 lineage III, and 7 of them showed 100% identity with the reference strain LB1562, which was collected in the USA 2 years earlier...
March 23, 2017: Intervirology
https://www.readbyqxmd.com/read/28331496/nitazoxanide-in-acute-rotavirus-diarrhea-a-randomized-control-trial-from-a-developing-country
#5
Samarendra Mahapatro, Nijwm Mahilary, Amit Kumar Satapathy, Rashmi Ranjan Das
Background. Acute diarrhea is one of the leading causes of childhood mortality, with rotavirus being an important pathogen. Nitazoxanide, an antiparasitic agent, has been shown to inhibit rotavirus. Objective. This double-blind, randomized trial was designed to study the role of nitazoxanide in acute rotavirus diarrhea. Methods. Of 174 children (12 months to 5 years) with acute diarrhea, 50 rotavirus positive cases were randomized. The intervention group received syrup nitazoxanide twice daily (100 mg in 12-47 months, 200 mg in ≥4 yr) for 3 days along with standard treatment of diarrhea...
2017: Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28330885/dientamoeba-fragilis-a-commensal-in-children-in-danish-day-care-centers
#6
Pikka Jokelainen, Betina Hebbelstrup Jensen, Bente Utoft Andreassen, Andreas Munk Petersen, Dennis Röser, Karen A Krogfelt, Henrik V Nielsen, Christen R Stensvold
Dientamoeba fragilis is an intestinal protozoan of debated clinical significance. Here, we present cross-sectional and longitudinal observations on D. fragilis in children aged 0-6 years from a 1-year multi-day-care-center cohort study set in Copenhagen, Denmark. The inclusion period for the cohort was 2009-2012. Stool samples collected from the children were accompanied by questionnaires completed by the parents or guardians of the children. Using real-time PCR, D. fragilis was detected in the first stool sample from 97 (68...
March 22, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28330478/higher-atypical-enteropathogenic-escherichia-coli-a-epec-bacterial-loads-in-children-with-diarrhea-are-associated-with-pcr-detection-of-the-ehec-factor-for-adherence-1-lymphocyte-inhibitory-factor-a-efa1-lifa-gene
#7
Robert Slinger, Kimberley Lau, Michael Slinger, Ioana Moldovan, Francis Chan
BACKGROUND: Typical enteropathogenic Escherichia coli (t-EPEC) are known to cause diarrhea in children but it is uncertain whether atypical EPEC (a-EPEC) do, since a-EPEC lack the bundle-forming pilus (bfp) gene that encodes a key adherence factor in t-EPEC. In culture-based studies of a-EPEC, the presence of another adherence factor, called EHEC factor for adherence/lymphocyte activation inhibitor (efa1/lifA), was strongly associated with diarrhea. Since a-EPEC culture is not feasible in clinical laboratories, we designed an efa1/lifA quantitative PCR assay and examined whether the presence of efa1/lifA was associated with higher a-EPEC bacterial loads in pediatric diarrheal stool samples...
March 23, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28328346/efficacy-of-a-low-cost-heat-stable-oral-rotavirus-vaccine-in-niger
#8
Sheila Isanaka, Ousmane Guindo, Celine Langendorf, Amadou Matar Seck, Brian D Plikaytis, Nathan Sayinzoga-Makombe, Monica M McNeal, Nicole Meyer, Eric Adehossi, Ali Djibo, Bruno Jochum, Rebecca F Grais
Background Each year, rotavirus gastroenteritis is responsible for about 37% of deaths from diarrhea among children younger than 5 years of age worldwide, with a disproportionate effect in sub-Saharan Africa. Methods We conducted a randomized, placebo-controlled trial in Niger to evaluate the efficacy of a live, oral bovine rotavirus pentavalent vaccine (BRV-PV, Serum Institute of India) to prevent severe rotavirus gastroenteritis. Healthy infants received three doses of the vaccine or placebo at 6, 10, and 14 weeks of age...
March 23, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28326205/shigella-sonnei-bacteremia-presenting-with-profound-hepatic-dysfunction
#9
Oluwaseun Shogbesan, Andrew Rettew, Bilal Shaikh, Abdullateef Abdulkareem, Anthony Donato
Worldwide, Shigellosis is a significant public health issue, associated with nearly one million deaths annually. About half a million cases of Shigella infection are reported annually in the United States. Shigella bacteremia is uncommon and generally seen in children and immunocompromised adults. We present a case of a Shigella sonnei bacteremia with marked hepatic derangement in a 27-year-old previously healthy homosexual male with history of Roux-en-Y gastric bypass, who presented to the emergency room with a 4-day history of loose watery stool, abdominal cramps, nausea and vomiting, and yellow skin of 2-day duration...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28321350/shigellosis-caused-by-ctx-m-type-esbl-producing-shigella-flexneri-in-two-siblings-of-rural-nepal-first-case-report-from-the-country
#10
Narayan Prasad Parajuli, Govardhan Joshi, Bashu Dev Pardhe, Jyotsna Shakya, Anjeela Bhetwal, Shreena Shakya, Roshan Pandit, Sumesh Shreekhanda Shrestha, Puspa Raj Khanal
Shigellosis is an acute infectious disease characterized as severe bloody diarrhea (dysentery) and is accountable for a significant burden of morbidity and mortality especially in children under the age of 5 years. Antimicrobial therapy is required in the cases of severe dysentery associated with Shigella. However, emergence of multidrug resistant (MDR) strains of Shigella spp. over the last two decades has restricted the use of common therapeutic antimicrobials. In MDR strains, the third-generation cephalosporins have been used for the treatment, but, unfortunately, emerging reports of enzyme mediated β-lactam resistance among Shigella isolates from various parts of the world have greatly compromised the therapy of pediatric dysentery...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28320411/human-rotavirus-strains-circulating-in-venezuela-after-vaccine-introduction-predominance-of-g2p-4-and-reemergence-of-g1p-8
#11
Esmeralda Vizzi, Oscar A Piñeros, M Daniela Oropeza, Laura Naranjo, José A Suárez, Rixio Fernández, José L Zambrano, Argelia Celis, Ferdinando Liprandi
BACKGROUND: Rotavirus (RV) is the most common cause of severe childhood diarrhea worldwide. Despite Venezuela was among the first developing countries to introduce RV vaccines into their national immunization schedules, RV is still contributing to the burden of diarrhea. Concerns exist about the selective pressure that RV vaccines could exert on the predominant types and/or emergence of new strains. RESULTS: To assess the impact of RV vaccines on the genotype distribution 1 year after the vaccination was implemented, a total of 912 fecal specimens, collected from children with acute gastroenteritis in Caracas from February 2007 to April 2008, were screened, of which 169 (18...
March 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28320354/slow-progress-in-diarrhea-case-management-in-low-and-middle-income-countries-evidence-from-cross-sectional-national-surveys-1985-2012
#12
Chandrashekhar T Sreeramareddy, Yue-Peng Low, Birger Carl Forsberg
BACKGROUND: Diarrhea remains to be a main cause of childhood mortality. Diarrhea case management indicators reflect the effectiveness of child survival interventions. We aimed to assess time trends and country-wise changes in diarrhea case management indicators among under-5 children in low-and-middle-income countries. METHODS: We analyzed aggregate data from Demographic and Health Surveys and Multiple Indicator Cluster Surveys done from 1986 to 2012 in low-and-middle-income countries...
March 21, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28320203/dietary-pectic-oligosaccharide-administration-improves-the-growth-performance-and-immunity-in-weaned-pigs-infected-by-rotavirus
#13
Hao Chen, Haiyan Hu, Daiwen Chen, Jun Tang, Bing Yu, Junqiu Luo, Jun He, Yuheng Luo, Jie Yu, Xiangbing Mao
Rotavirus infection is one of the main pathogenic causes of gastroenteritis and diarrhea in children and young animals. The present study aimed to determine whether dietary pectic oligosaccharide (POS) supplementation could improve the growth performance and immunity in weaned pigs infected by porcine rotavirus (PRV). Twenty-eight crossbred weaned galts were randomly divided into two groups fed with basal diet with or without POS for 18 d. On 15th day, the PRV were orally infused to half of the pigs. ADFI, ADG and F/G ratio were impaired by PRV infection in weaned pigs (P < 0...
March 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28319300/children-s-mouthing-of-soil-contaminated-objects-is-associated-with-environmental-enteropathy
#14
Tomohiko Morita, Jamie Perin, Lauren Oldja, Shwapon Biswas, R Bradley Sack, Shahnawaz Ahmed, Rashidul Haque, Nurul Amin Bhuiyan, Tahmina Parvin, Sazzadul Islam Bhuyian, Mahmuda Akter, Kaisar A Talukder, Shahnaij Mohammad, Abu G Faruque, Christine Marie George
OBJECTIVE: To investigate the relationship between children's mouthing behaviors, diarrhea, and environmental enteropathy. METHODS: Prospective cohort study of 216 children ≤ 30 months of age in rural Bangladesh. Mouthing contacts with soil and food and objects with visible soil was measured by five-hour structured observation. Stool was analyzed for four fecal markers of intestinal inflammation: alpha-1-antitrypsin, myeloperoxidase, neopterin, and calprotectin...
March 20, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28315889/patterns-of-growth-in-early-childhood-and-infectious-disease-and-nutritional-determinants
#15
Robert E Black
The physical growth of young children in low- and middle-income countries is reduced compared to international standards. The deviations in growth in both weight and height are greatest in the first 2 years of life and this has serious consequences for child mortality, development, adult stature, and health. The determinants of these patterns of growth faltering include intergenerational factors, such as maternal height, short birth interval, and conditions in pregnancy, including maternal underweight and anemia...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28303771/epidemiology-and-outcome-of-acute-kidney-injury-in-children-a-single-center-study
#16
Werner Keenswijk, Jill Vanmassenhove, Ann Raes, Evelyn Dhont, Johan VandeWalle
BACKGROUND: Information on the epidemiology of Acute Kidney Injury (AKI) in children is scarce. We performed a single center retrospective cohort study to analyze the incidence of AKI, the male/female ratio, the underlying etiology, and age at presentation. We also aimed to assess outcome measured by mortality, duration of PICU stay, and development of Chronic Kidney Disease (CKD). METHODS: Records were searched for children presenting with or developing AKI between 1st January 2008 and 1st January 2015...
March 17, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28301447/mercury-spill-responses-five-states-2012-2015
#17
Ryan J Wozniak, Anne E Hirsch, Christina R Bush, Stuart Schmitz, Jeff Wenzel
Despite measures to educate the public about the dangers of elemental mercury, spills continue to occur in homes, schools, health care facilities, and other settings, endangering the public's health and requiring costly cleanup. Mercury is most efficiently absorbed by the lungs, and exposure to high levels of mercury vapor after a release can cause cough, sore throat, shortness of breath, nausea, vomiting, diarrhea, headaches, and visual disturbances (1). Children and fetuses are most susceptible to the adverse effects of mercury vapor exposure...
March 17, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28300026/effects-of-racecadotril-on-weight-loss-and-diarrhea-due-to-human-rotavirus-in-neonatal-gnotobiotic-pigs-sus-scrofa-domesticus
#18
Tammy Bui Guohua Li Inyoung Kim Ke Wen Erica L Twitchell Shaohua Lei Ashwin K Ramesh Mariah D Weiss Xingdong Yang Sherrie G Clark-Deener Robert Km Choy And Lijuan Yuan
Diarrheal disease is the second leading cause of death in children younger than 5 y, and the most common cause of acutewatery diarrhea in young children worldwide is rotaviral infection. Medicines to specifically reduce diarrhea would be a desirable adjunctive treatment to supportive fluid therapy to decrease the mortality rate of diarrheal diseases. In this study, we evaluated the efficacy of an antisecretory drug, racecadotril, in treating human rotavirus (HRV)-induced diarrhea in a neonatal gnotobiotic pig model...
March 15, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28295914/development-of-a-gastric-carcinoid-tumor-following-allogeneic-hematopoietic-stem-cell-transplantation-for-early-t-cell-precursor-acute-lymphoblastic-leukemia
#19
Tsung-Yen Chang, Jin-Yao Lai, Chao-Jan Wang, Shih-Yen Chen, Tang-Her Jaing, Chuen Hsueh, Lee-Yung Shih, Shih-Hsiang Chen
Gastric carcinoid tumor is rarely diagnosed in children. We report a case of gastric carcinoid tumor that occurred after allogeneic HSCT. A 13-year-old girl with ETP acute lymphoblastic leukemia underwent allogeneic HSCT from a 7/8 HLA-matched unrelated donor. She presented with rashes, abdominal pain, and diarrhea, which were suggestive of GVHD, 7 months after HSCT. Immunosuppressive agents failed to resolve these symptoms well. After a series of evaluations, carcinoid syndrome caused by a gastric carcinoid tumor was diagnosed...
March 11, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28292642/quantitative-reverse-transcription-pcr-to-determine-the-inactivation-of-human-rotavirus-by-chlorine
#20
Bin Xue, Chenyu Li, Bin Zhang, Tianyu Zhao, Zhiqiang Shen, Zhigang Qiu, Min Jin, Jingfeng Wang, Junwen Li
Human rotaviruses (HRVs) are the major cause of acute diarrhea in infants and young children. Here, a real-time reverse transcription polymerase chain reaction assay targeting the rotaviral VP4 gene (VP4-RT-qPCR) was established to evaluate the inactivation of HRV upon chlorine disinfection, based on a previous report that damage to the 1227-2354bp region of the VP4 gene was associated with eliminated HRV infectivity by chlorine. In this study, inactivation of HRV by 0.6mg/L free chlorine was assessed in phosphate buffered saline (PBS; pH 7...
February 27, 2017: International Journal of Hygiene and Environmental Health
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