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catalase/diarré

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During 1987 and 1988, nine strains of catalase-negative or -weak Campylobacter species were isolated in Alberta, Canada. DNA hybridization studies demonstrated that seven strains were "Campylobacter upsaliensis," one strain was highly homologous with Campylobacter jejuni DNA, and one strain was a

Isolation of group 2 aerotolerant Campylobacter species from Thai children with diarrhea.

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Campylobacter species were isolated from 93 (15%) of 631 Thai children with diarrhea using the membrane filter technique on nonselective blood agar incubated at 37 degrees C. Campylobacter jejuni was isolated from 62 (10%), Campylobacter coli from 14 (2%), and atypical campylobacters from 17 (3%).
Lactic acid bacteria are generally sensitive to hydrogen peroxide (H₂O₂). Lactobacillus plantarum ATCC14431 is one of the few lactic acid bacteria able to degrade H₂O₂ through the action of a manganese-dependent catalase (containing the katA gene). However, it is not a natural inhabitant of the
BACKGROUND Human immune cells generate large amounts of reactive oxygen species (ROS) throughout the respiratory burst that occurs during inflammation. In inflammatory bowel diseases, a sustained and abnormal activation of the immune system results in oxidative stress in the digestive tract and in a

Protective role of lactobacilli in Shigella dysenteriae 1-induced diarrhea in rats.

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OBJECTIVE Studies on lactic acid bacteria exemplify their use against various enteropathogens in vitro. Nevertheless, in vivo effects of Lactobacillus during Shigella infection have not been evaluated. The present study evaluated the effect of Lactobacillus rhamnosus and Lactobacillus acidophilus on

Chronic diarrhea impairs intestinal antioxidant defense system in rats at weaning.

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The aim of the present study was to evaluate the influence of severe protein-energy malnutrition on the antioxidant defense system in the small and large intestine in rats at weaning. Chronic diarrhea and the subsequent malnutrition were induced by oral intake of a lactose-enriched diet. Twenty rats
Catalase-negative or weakly positive (CNW) thermotolerant campylobacteria, first isolated from dogs in 1983, were recently recognized as a new species, "Campylobacter upsaliensis," but their association with human illness has not been established. Twelve human isolates received at the Centers for

Essential Oil Blend Could Decrease Diarrhea Prevalence by Improving Antioxidative Capability for Weaned Pigs.

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Finding an alternative to in-feed antibiotics is important because of increasing contemporary concern regarding drug residues and the development of drug-resistant bacteria. The purpose of this study was to test the hypothesis that essential oils added to the feed would decrease diarrhea prevalence

[Various biological properties of enterobacteria, isolated from patients with diarrhea].

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381 enterobacterial strains isolated from patients with acute enteric diseases were studied. Of these, 279 strains, as well as 20 strains isolated from 50 healthy children, were studied for the presence of adhesins, hemolysins and catalase. The comparison of the hemagglutinating activity of

Betulinic acid alleviates dextran sulfate sodium-induced colitis and visceral pain in mice.

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Betulinic acid (BA) exhibits many biological effects including anti-inflammatory and anti-oxidant activities. Free radicals and pro-inflammatory mediators play an important role in the pathology of inflammatory bowel disease (IBD) and associated pain. We, therefore, examined the anti-oxidant,
In this work, α-lipoic acid and cyclosporine demonstrated significant protection against acetic acid-induced ulcerative colitis in rats. We proposed that α-lipoic acid and cyclosporine co-administration might modulate their individual effects. Induction of ulcerative colitis in rats was performed by

DNA relatedness and biochemical features of Campylobacter spp. isolated in central and South Australia.

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Investigations of the etiology of diarrhea in patients in South Australia and the Northern Territory showed that Campylobacter spp. other than Campylobacter jejuni and C. coli were common in children. Campylobacters which were hippurate positive, nitrate negative, and susceptible to cephalothin and

Chebulic acid attenuates ischemia reperfusion induced biochemical alteration in diabetic rats.

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BACKGROUND Diabetic nephropathy is one of the important microvascular complications of diabetes; however, the main problem remains is the control of progression of nephropathy in diabetes. Chebulic acid was selected, as tannins from Terminalia chebula are used as antidiabetic, renoprotective,
BACKGROUND Aegle marmelos (AM) fruit has been advocated in indigenous system of medicine for the treatment of various gastrointestinal disorders, fever, asthma, inflammations, febrile delirium, acute bronchitis, snakebite, epilepsy, leprosy, myalgia, smallpox, leucoderma, mental illnesses, sores,

Healing effects of Aegle marmelos (L.) Correa fruit extract on experimental colitis.

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Graded doses of 50% ethanolic extract of dried fruit pulp of Aegle marmelos (AME) (100, 200 and 400 mg/kg) daily for 14 days in acetic acid (AA)-induced colitis in rats showed 200 mg/kg of AME as an optimal effective dose against AA-induced colonic damage score and weight. This dose (200 mg/kg; po)
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