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Pàgina 1 des de 70 resultats
Antisecretory activity in a lectin fraction of plasma from patients with acute diarrhea.
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The present study describes the first attempt to detect antisecretory activity in a lectin fraction of plasma from patients with acute diarrhea. The plasma antisecretory protein (ASP) was purified by affinity chromatography in agarose, and its antisecretory activity tested in rats subjected to
Bovine viral diarrhea virus: affinity chromatography on Crotalaria juncea lectin.
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Attempts were made to purify bovine viral diarrhea virus by chromatography on Crotalaria juncea lectin coupled to Sepharose 2B. A recovery of abut 65% of viral infectivity after desorption was obtained. Electron microscopy revealed mostly de-enveloped particles, rather uniform in appearance but
Antiviral activity of native banana lectin against bovine viral diarrhea virus and bovine alphaherpesvirus type 1.
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Bovine viral diarrhea virus (BVDV) and bovine alphaherpesvirus type 1 (BoHV-1) are responsible for major economic losses of livestock worldwide, making their eradication an important objective of veterinary research. Vaccines against these infectious agents are commercially available but have some
The Bactericidal Lectin RegIIIβ Prolongs Gut Colonization and Enteropathy in the Streptomycin Mouse Model for Salmonella Diarrhea.
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The bactericidal lectin RegIIIβ is inducibly produced by intestinal epithelial cells as a defense against infection by enteropathogens. In the gut lumen, RegIIIβ kills not only certain enteropathogens, but also some commensal bacteria; thus, RegIIIβ is also thought to be an innate immune effector
[Osmotic diarrhea in vegetarians: are lectins involved?].
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Role of the Gut Microbiota of Children in Diarrhea Due to the Protozoan Parasite Entamoeba histolytica.
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BACKGROUND
An estimated 1 million children die each year before their fifth birthday from diarrhea. Previous population-based surveys of pediatric diarrheal diseases have identified the protozoan parasite Entamoeba histolytica, the etiological agent of amebiasis, as one of the causes of
In vitro antiviral activity of Griffithsin against porcine epidemic diarrhea virus.
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Griffithsin is a lectin with potent antiviral activity against enveloped viruses. The objective of this study was to assess Griffithsin's inhibitory effect on porcine epidemic diarrhea virus (PEDV). The results showed that Griffithsin reduced PEDV infection of Vero cells by approximately 82.8%.
Common architecture of the primary galactose binding sites of Erythrina corallodendron lectin and heat-labile enterotoxin from Escherichia coli in relation to the binding of branched neolactohexaosylceramide.
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The heat-labile enterotoxin from Escherichia coli (LT) is responsible for so-called traveller's diarrhea and is closely related to the cholera toxin (CT). Toxin binding to GM1 at the epithelial cell surface of the small intestine initiates the subsequent diarrheal disease. However, LT has a broader
Lectin conjugates as potent, nonabsorbable CFTR inhibitors for reducing intestinal fluid secretion in cholera.
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OBJECTIVE
Inhibitors of the cystic fibrosis transmembrane conductance regulator (CFTR) chloride channel are predicted to prevent intestinal fluid secretion in cholera. We previously discovered low- affinity glycine hydrazide (GlyH) CFTR inhibitors that block CFTR at its external pore. The goal of
Lectin ingestion : changes in mucin secretion and bacterial adhesion to intestinal tissue.
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Phytohemagglutinin (PHA), the lectin derived from red kidney been (Phaseolus vulgarus) causes reduced growth rates in several animal species, when incorporated at 0.5-5% of dietary protein. Lectin feeding results in diarrhea, impaired nutrient absorption, growth rate inhibition, and can even lead to
Lack of the lectin-like domain of thrombomodulin worsens Shiga toxin-associated hemolytic uremic syndrome in mice.
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Shiga toxin (Stx)-producing Escherichia coli is a primary cause of diarrhea-associated hemolytic uremic syndrome (HUS), a disorder of thrombocytopenia, microangiopathic hemolytic anemia, and acute renal failure. The pathophysiology of renal microvascular thrombosis in Stx-HUS is still ill-defined.
A rapid assay of the sialidase activity in species of the Bacteroides fragilis group by using peanut lectin hemagglutination.
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In this study, a novel, simple and rapid hemagglutination assay by using a peanut lectin to detect a neuraminidase activity in strains of the Bacteroides fragilis group was developed. One hundred and fourteen species of the B. fragilis group isolated from children with and without diarrhea and 15
Inhibition of Escherichia coli heat-labile enterotoxin by neoglycoprotein and anti-lectin antibodies which mimic GM1 receptor.
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Escherichia coli producing heat-labile enterotoxin is responsible for numerous cases of diarrhea worldwide, leading to considerable morbidity and mortality. The B subunits of this toxin are responsible for the binding to the receptor, the complex ganglioside GM1 which has galactose as its terminal
Effects of crude red kidney bean lectin (phytohemagglutinin) exposure on performance, health, feeding behavior, and gut maturation of pigs at weaning.
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The aim of this study was to obtain information that could help to ease the weaning transition in commercial pig production. Before weaning, phytohemagglutinin (PHA) in the form of a crude preparation of red kidney bean lectin was fed by gavage to 24 crossbred [(Swedish Landrace x Yorkshire) x
Inflammatory bactericidal lectin RegIIIβ: Friend or foe for the host?
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In the inflamed gut, the bactericidal lectin RegIIIβ is massively produced by intestinal mucosa. RegIIIβ binds peptidoglycan and lipid A respectively, and thus can kill certain Gram-positive and Gram-negative bacteria, including the gut commensal microbiota and enteropathogenic bacteria. Considering
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