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treatment for escherichia coli enterotoxigenic

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https://www.readbyqxmd.com/read/28798800/effect-of-modified-pulsatilla-powder-on-enterotoxigenic-escherichia-coli-o101-induced-diarrhea-in-mice
#1
Jiankang Yu, Yuetian Zhang, Xu Song, Yi Yang, Renyong Jia, Xu Chen, Kai Sun, Li Li, Xinghong Zhao, Qiankun Cui, Qiuting Fu, Yuanfeng Zou, Lixia Li, Zhongqiong Yin
MPP can be effective in the treatment of E. coli O101-induced diarrhea in mice. MPP can improve the weight loss caused by diarrhea, increase spleen and thymus indices, and reduce the diarrhea index. MPP can reduce the number of WBC, regulate the level of cytokines, and regulate the intestinal microbial flora. These data suggest that MPP is a promising candidate for treatment of E. coli-induced diarrhea in humans and animals.
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28794894/swine-enteric-colibacillosis-diagnosis-therapy-and-antimicrobial-resistance
#2
REVIEW
Andrea Luppi
Intestinal infection with enterotoxigenic Escherichia coli (ETEC) is an important disease in swine resulting in significant economic losses. Knowledge about the epidemiology, the diagnostic approach and methods of control are of fundamental importance to tackle the disease. The ETEC causing neonatal colibacillosis mostly carry the fimbriae F4 (k88), F5 (k99), F6 (987P) or F41, while the ETEC of post-weaning diarrhoea carry the fimbriae F4 (k88) and F18. These fimbriae adhere to specific receptors on porcine intestinal brush border epithelial cells (enterocytes), starting the process of enteric infection...
2017: Porcine Health Management
https://www.readbyqxmd.com/read/28794036/persistent-tgev-infection-enhances-etec-k88-adhesion-by-promoting-epithelial-mesenchymal-transition-in-intestinal-epithelial-cells
#3
Lu Xia, Lei Dai, Qinghua Yu, Qian Yang
Transmissible gastroenteritis virus (TGEV) is a coronavirus, characterized by diarrhea, high morbidity, and the mortality is 100% in piglets less than 2 weeks old. Pigs infected with TGEV are often suffer secondary infection with other pathogens, which aggravates the severity of diarrhea, but the mechanisms remain unknown. Here, we hypothesized that persistent TGEV infection stimulates the epithelial-mesenchymal transition (EMT), thereby generating cells that more easily adhere to enterotoxigenic Escherichia coli (ETEC)...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28727032/probiotic-supplementation-protects-weaned-pigs-against-enterotoxigenic-escherichia-coli-k88-challenge-and-improves-performance-similar-to-antibiotics
#4
L Pan, P F Zhao, X K Ma, Q H Shang, Y T Xu, S F Long, Y Wu, F M Yuan, X S Piao
These studies evaluated the effects of probiotics (PB) as a potential substitute for antibiotics (AB) on diarrhea in relation to immune responses and intestinal health in weaned pigs challenged with enterotoxigenic (ETEC) K88 (Exp. 1) and the effects of PB on performance and nutrient digestibility in weaned pigs (Exp. 2). In Exp. 1, 24 weaned barrows (4.9 ± 0.4 kg initial BW) were randomly assigned to 1 of 4 treatments. The treatments consisted of pigs fed an unsupplemented corn-soybean meal basal diet and not challenged (NON-C) or challenged with ETEC K88 (CHA-C) on d 9 and pigs fed the same basal diet supplemented with AB (100 mg/kg zinc bacitracin, 50 mg/kg colistin sulfate, and 100 mg/kg olaquindox; CHA-AB) or 500 mg/kg PB ( and ; CHA-PB) and challenged with ETEC K88 on d 9...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28607532/altered-cytokine-expression-and-barrier-properties-after-in-vitro-infection-of-porcine-epithelial-cells-with-enterotoxigenic-escherichia-coli-and-probiotic-enterococcus-faecium
#5
Martina Kern, Dorothee Günzel, Jörg R Aschenbach, Karsten Tedin, Angelika Bondzio, Ulrike Lodemann
The aim of the present study was to elucidate the effects of the probiotic feed additive Enterococcus faecium NCIMB 10415 (E. faecium) on porcine jejunal epithelial cells (IPEC-J2) during an in vitro challenge with enterotoxigenic Escherichia coli (ETEC). Cells were incubated with E. faecium, ETEC, or both, and the effects on barrier function and structure and intra- and intercellular signaling were determined. Coincubation with E. faecium abolished the ETEC-induced decrease in transepithelial resistance (Rt) (p ≤ 0...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28526080/post-weaning-diarrhea-in-pigs-risk-factors-and-non-colistin-based-control-strategies
#6
REVIEW
Mohamed Rhouma, John Morris Fairbrother, Francis Beaudry, Ann Letellier
Post-weaning diarrhea (PWD) is one of the most serious threats for the swine industry worldwide. It is commonly associated with the proliferation of enterotoxigenic Escherichia coli in the pig intestine. Colistin, a cationic antibiotic, is widely used in swine for the oral treatment of intestinal infections caused by E. coli, and particularly of PWD. However, despite the effectiveness of this antibiotic in the treatment of PWD, several studies have reported high rates of colistin resistant E. coli in swine...
May 19, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28520998/medications-for-the-prevention-and-treatment-of-travellers-diarrhea
#7
David N Taylor, Davidson H Hamer, David R Shlim
Background: . Travellers' diarrhea (TD) remains one of the most common illnesses encountered by travellers to less developed areas of the world. Because bacterial pathogens such as enterotoxigenic Escherichia coli (ETEC), enteroaggregative E. coli , Campylobacter spp. and Shigella spp. are the most frequent causes, antibiotics have been useful in both prevention and treatment of TD. Methods.: Results of trials that assessed the use of medications for the prevention and treatment of TD were identified through PubMed and MEDLINE searches using search terms 'travellers' diarrhea', 'prevention' and 'treatment'...
April 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28520997/resistant-pathogens-as-causes-of-traveller-s-diarrhea-globally-and-impact-s-on-treatment-failure-and-recommendations
#8
David R Tribble
Background: : Diarrhea is a frequent clinical syndrome affecting international travellers. Bacterial etiologic agents have a long history of emergent antimicrobial resistance against commonly used antibiotics. Current approaches applying first-line antimicrobial therapy are being challenged by increasingly resistant organisms. This review summarizes recent epidemiological and clinical evidence of antibiotic resistance among enteropathogens causing traveller's diarrhea and the subsequent impact on current treatment recommendations...
April 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28419095/effectiveness-of-a-live-oral-human-rotavirus-vaccine-after-programmatic-introduction-in-bangladesh-a-cluster-randomized-trial
#9
RANDOMIZED CONTROLLED TRIAL
K Zaman, David A Sack, Kathleen M Neuzil, Mohammad Yunus, Lawrence H Moulton, Jonathan D Sugimoto, Jessica A Fleming, Ilias Hossain, Shams El Arifeen, Tasnim Azim, Mustafizur Rahman, Kristen D C Lewis, Andrea J Feller, Firdausi Qadri, M Elizabeth Halloran, Alejandro Cravioto, John C Victor
BACKGROUND: Rotavirus vaccines are now globally recommended by the World Health Organization (WHO), but in early 2009 WHO's Strategic Advisory Group of Experts on Immunization reviewed available data and concluded that there was no evidence for the efficacy or effectiveness of a two-dose schedule of the human rotavirus vaccine (HRV; Rotarix) given early at 6 and 10 wk of age. Additionally, the effectiveness of programmatic rotavirus vaccination, including possible indirect effects, has not been assessed in low-resource populations in Asia...
April 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28199144/attachment-of-13-types-of-foodborne-bacteria-to-jalape%C3%A3-o-and-serrano-peppers-and-antibacterial-effect-of-roselle-calyx-extracts-sodium-hypochlorite-colloidal-silver-and-acetic-acid-against-these-foodborne-bacteria-on-peppers
#10
Esmeralda Rangel-Vargas, Carlos A Gómez-Aldapa, Reyna N Falfan-Cortes, María L Rodríguez-Marín, Angélica Godínez-Oviedo, Otilio A Acevedo-Sandoval, Javier Castro-Rosas
Chili peppers are a very important crop in Mexico. However, these peppers have been associated with Salmonella infection outbreaks in the United States, and Salmonella and diarrheagenic Escherichia coli pathotypes have been isolated from jalapeño and serrano peppers in Mexico. To decrease microbial contamination of fruits and vegetables, chemical agents are commonly used; however, chemical agents used to eliminate pathogenic bacteria on vegetables have a limited antimicrobial effect. Roselle ( Hibiscus sabdariffa ) calyces have been reported to have an antimicrobial effect on pathogenic bacteria...
March 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28056796/the-fecal-presence-of-enterotoxin-and-f4-genes-as-an-indicator-of-efficacy-of-treatment-with-colistin-sulfate-in-pigs
#11
Mohamed Rhouma, John Morris Fairbrother, William Thériault, Francis Beaudry, Nadia Bergeron, Sylvette Laurent-Lewandowski, Ann Letellier
BACKGROUND: Enterotoxigenic Escherichia coli (ETEC) strains producing multiple enterotoxins are important causes of post-weaning diarrhea (PWD) in pigs. The aim of the present study was to investigate the fecal presence of ETEC enterotoxin as well as F4 and F18 genes as an indicator of colistin sulfate (CS) efficacy for treatment of PWD in pigs. Forty-eight piglets were weaned at the age of 21 days, and were divided into four groups: challenged treated, challenged untreated, unchallenged treated, and unchallenged untreated...
January 5, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28034476/defining-cases-of-severe-pediatric-diarrhea-for-an-efficacy-trial-of-an-enterotoxigenic-escherichia-coli-etec-vaccine-report-on-an-international-workshop-washington-dc-march-2016
#12
Thomas F Wierzba, Alexandra Bourgis
Enterotoxigenic Escherichia coli (ETEC) causes severe acute watery diarrhea. No ETEC vaccine is available but candidates are in development, including ETVAX, an oral, whole-cell inactivated vaccine. ETVAX is being tested in a descending-age trial in Bangladesh. If found safe and immunogenic, investigators may test it for efficacy in children. Like oral rotavirus vaccines, we expect that ETVAX will be most effective at decreasing the incidence of moderate-to-severe ETEC episodes. Thus, for an efficacy trial outcome, it will be necessary to triage patients into moderate-to-severe versus mild disease...
January 23, 2017: Vaccine
https://www.readbyqxmd.com/read/27832811/farm-characteristics-and-management-routines-related-to-neonatal-porcine-diarrhoea-a-survey-among-swedish-piglet-producers
#13
Jenny Larsson, Nils Fall, Maria Lindberg, Magdalena Jacobson
BACKGROUND: In recent years reports from a number of countries, including Sweden, describe problems with diarrhoea in newborn piglets despite the use of previously effective preventive measures. This seemingly altered disease pattern of neonatal porcine diarrhoea (NPD) warrants investigations on the magnitude and manifestation of the problem. The aim of the present study was to investigate the herd-level prevalence of NPD in Sweden and to describe disease characteristics and intervention strategies used in affected herds...
November 10, 2016: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/27816246/clinical-trial-on-the-effects-of-a-free-access-acidified-milk-replacer-feeding-program-on-the-health-and-growth-of-dairy-replacement-heifers-and-veal-calves
#14
C G Todd, K E Leslie, S T Millman, V Bielmann, N G Anderson, J M Sargeant, T J DeVries
The objectives of this study were to evaluate the effects of free-access acidified milk replacer feeding on the pre- and postweaning health of dairy and veal calves. Individually housed calves were systematically assigned at birth to 1 of 2 feeding programs: free-access feeding (ad libitum) of acidified milk replacer (ACD, n=249) or traditional restricted feeding (3L fed twice daily) of milk replacer (RES, n=249). Calves were fed milk replacer containing 24% crude protein and 18% fat. Acidified milk replacer was prepared to a target pH between 4...
January 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/27688074/differential-protection-by-cell-wall-components-of-lactobacillus-amylovorus-dsm-16698-t-against-alterations-of-membrane-barrier-and-nf-kb-activation-induced-by-enterotoxigenic-f4-escherichia-coli-on-intestinal-cells
#15
Marianna Roselli, Alberto Finamore, Ulla Hynönen, Airi Palva, Elena Mengheri
BACKGROUND: The role of Lactobacillus cell wall components in the protection against pathogen infection in the gut is still largely unexplored. We have previously shown that L. amylovorus DSM 16698(T) is able to reduce the enterotoxigenic F4(+) Escherichia coli (ETEC) adhesion and prevent the pathogen-induced membrane barrier disruption through the regulation of IL-10 and IL-8 expression in intestinal cells. We have also demonstrated that L. amylovorus DSM 16698(T) protects host cells through the inhibition of NF-kB signaling...
September 29, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27607555/gut-microbiota-inflammation-and-colorectal-cancer
#16
REVIEW
Caitlin A Brennan, Wendy S Garrett
Colorectal cancer is the second-leading cause of cancer-related deaths in the United States and fourth-leading cause of cancer-related deaths worldwide. While cancer is largely considered to be a disease of genetic and environmental factors, increasing evidence has demonstrated a role for the microbiota (the microorganisms associated with the human body) in shaping inflammatory environments and promoting tumor growth and spread. Herein, we discuss both human data from meta'omics analyses and data from mechanistic studies in cell culture and animal models that support specific bacterial agents as potentiators of tumorigenesis-including Fusobacterium nucleatum, enterotoxigenic Bacteroides fragilis, and colibactin-producing Escherichia coli...
September 8, 2016: Annual Review of Microbiology
https://www.readbyqxmd.com/read/27574018/administration-of-non-pathogenic-isolates-of-escherichia-coli-and-clostridium-perfringens-type-a-to-piglets-in-a-herd-affected-with-a-high-incidence-of-neonatal-diarrhoea
#17
C Unterweger, A Kahler, G-F Gerlach, M Viehmann, A von Altrock, I Hennig-Pauka
A bacterial cocktail of living strains of Clostridium perfringens type A (CPA) without β2-toxin gene and non-pathogenic Escherichia coli was administered orally to newborn piglets before first colostrum intake and on 2 consecutive days on a farm with a high incidence of diarrhoea and antibiotic treatment in suckling piglets associated with E. coli and CPA. This clinical field study was driven by the hypothetic principle of competitive exclusion of pathogenic bacteria due to prior colonization of the gut mucosal surface by non-pathogenic strains of the same bacterial species with the aim of preventing disease...
April 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27428376/resistance-pattern-and-molecular-characterization-of-enterotoxigenic-escherichia-coli-etec-strains-isolated-in-bangladesh
#18
Yasmin A Begum, K A Talukder, Ishrat J Azmi, Mohammad Shahnaij, A Sheikh, Salma Sharmin, A-M Svennerholm, Firdausi Qadri
BACKGROUND: Enterotoxigenic Escherichia coli (ETEC) is a common cause of bacterial infection leading to acute watery diarrhea in infants and young children as well as in travellers to ETEC endemic countries. Ciprofloxacin is a broad-spectrum antimicrobial agent nowadays used for the treatment of diarrhea. This study aimed to characterize ciprofloxacin resistant ETEC strains isolated from diarrheal patients in Bangladesh. METHODS: A total of 8580 stool specimens from diarrheal patients attending the icddr,b Dhaka hospital was screened for ETEC between 2005 and 2009...
2016: PloS One
https://www.readbyqxmd.com/read/27234971/in-vivo-therapeutic-efficacy-and-pharmacokinetics-of-colistin-sulfate-in-an-experimental-model-of-enterotoxigenic-escherichia-coli-infection-in-weaned-pigs
#19
Mohamed Rhouma, Francis Beaudry, William Thériault, Nadia Bergeron, Guy Beauchamp, Sylvette Laurent-Lewandowski, John Morris Fairbrother, Ann Letellier
Enterotoxigenic Escherichia coli (ETEC: F4) associated with post-weaning diarrhea (PWD) in pigs has developed resistance against several antimicrobial families, leading to increased use of colistin sulfate (CS) for the treatment of this disease. The objective of this study was to determine the efficacy of oral CS treatment in experimental PWD due to ETEC: F4 challenge and determine the effect of this challenge on CS intestinal absorption. In this study, 96 pigs were divided into two trials based on CS dose (100 000 or 50 000 IU/kg)...
2016: Veterinary Research
https://www.readbyqxmd.com/read/27234415/-traveller-s-diarrhoea
#20
Jordi Vila, Ines Oliveira, Yuliya Zboromyrska, Joaquim Gascon
Traveller's diarrhoea (TD) is acquired primarily through ingestion of food and drinks contaminated with pathogens that cause diarrhoea. They can be bacteria, protozoa, helminths, and viruses. Globally, the most common causes of TD are two pathotypes of Escherichia coli (enterotoxigenic and enteroaggregative) and Campylobacter, although there are significant variations by geographic area visited. Most TD occurs in individuals traveling to low-middle income countries. The type of travel, length of stay, traveller's age, and the presence of certain underlying conditions are important risk factors to consider for the acquisition of TD...
November 2016: Enfermedades Infecciosas y Microbiología Clínica
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