beta glucuronidase/diarreia

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[Evaluation of beta-glucuronidase activity for the isolation of diarrhea-causing Escherichia coli].

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To compare the isolating efficiency of diarrhea-causing Escherichia coli between Fluorocult agar plates, which reveal the beta-glucuronidase activity of E. coli, and a combination of SS and DHL agar plates, a total of 330 fecal specimens collected from outpatients were examined. Diarrhea-causing E.

Pharmacological inhibition of bacterial β-glucuronidase prevents irinotecan-induced diarrhea without impairing its antitumor efficacy in vivo.

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Irinotecan (CPT-11), a first-line chemotherapy for advanced colorectal cancer, causes serious diarrhea in patients receiving treatment. The underlying mechanism has been shown that the active metabolite of CPT-11, SN-38, is metabolized to the inactive metabolite SN-38 glucuronide (SN-38 G) during

Streptomycin alleviates irinotecan-induced delayed-onset diarrhea in rats by a mechanism other than inhibition of β-glucuronidase activity in intestinal lumen.

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Irinotecan hydrochloride (CPT-11) is a useful drug for cancer chemotherapy but sometimes induces severe diarrhea clinically. CPT-11 is mainly activated to SN-38 by carboxylesterase (CES) and then detoxified to SN-38 glucuronide (SN-38G) by UDP-glucuronosyltransferase (UGT) in the liver. SN-38G is

Faecal microflora and beta-glucuronidase expression are altered in an irinotecan-induced diarrhea model in rats.

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OBJECTIVE Chemotherapy-induced diarrhea (CID) is a well recognized side effect of cancer treatment. However, the pathophysiology behind this debilitating side effect remains unclear. Irinotecan causes cholinergic and delayed onset diarrhea in patients, in which beta-glucuronidase produced by gut

Intestinal bacterial β-glucuronidase as a possible predictive biomarker of irinotecan-induced diarrhea severity.

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Irinotecan is an anticancer drug with a broad spectrum of activity, characterized by multistep and complex pharmacology. Regardless of its schedule of administration, neutropenia and delayed-type diarrhea are the most common side effects. The latter was the dose-limiting toxicity in phase I trials,

Intravenous administration of irinotecan elevates the blood beta-glucuronidase activity in rats.

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7-Ethyl-10-hydroxycamptothecin (SN-38) is the active metabolite of an anticancer drug, irinotecan (CPT-11). Severe late diarrhea is the dose-limiting toxic effect of CPT-11. This diarrhea has been examined regarding biliary excretion and deconjugation of SN-38 glucuronide by the enzyme

Isolation of verotoxin-producing Escherichia coli O-rough:K1:H7 from two patients with traveler's diarrhea.

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Two Escherichia coli O-rough:K1:H7 strains producing verotoxin 1 that were isolated from stool samples of two travelers with diarrhea who consulted our clinic after trips to the Indian Subcontinent and Central America were characterized. Both strains were sorbitol negative, the same phenotype

Preventive effect of Kampo medicine (Hangeshashin-to) against irinotecan-induced diarrhea in advanced non-small-cell lung cancer.

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OBJECTIVE Kampo medicine Hangeshashin-to (TJ-14) which contains baicalin, a beta-glucuronidase inhibitor, alleviates diarrhea induced by irinotecan (CPT-11). We conducted a randomized comparative trial to investigate whether support with TJ-14 would prevent and control CPT-11-induced

[Prevention of irinotecan hydrochloride-induced diarrhea by oral administration of Lactobacillus casei strain Shirota in rats].

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Irinotecan hydrochloride is an inhibitor of DNA topoisomerase I enzyme by its main active metabolite SN-38. However, irinotecan-induced severe diarrhea has often limited its more widespread use. We assessed the effect of oral administration of Lactobacillus casei strain Shirota (LcS) on

[Isolation of enteropathogenic Escherichia coli O157:H16 identified in a diarrhea case in a child and his household contacts in La Pampa Province, Argentina].

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Enteropathogenic Escherichia coli (EPEC) is a major causative agent of acute diarrhea in children in developing countries. This pathotype is divided into typical EPEC (tEPEC) and atypical EPEC (aEPEC), based on the presence of the bfp virulence factor associated with adhesion, encoded in the pEAF

Optimal antidiarrhea treatment for antitumor agent irinotecan hydrochloride (CPT-11)-induced delayed diarrhea.

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OBJECTIVE An antitumor camptothecin derivative CPT-11 has proven a broad spectrum of solid tumor malignancy, but its severe diarrhea has often limited its more widespread use. We have demonstrated from a rat model that intestinal beta-glucuronidase may play a key role in the development of

Inhibition of intestinal microflora beta-glucuronidase modifies the distribution of the active metabolite of the antitumor agent, irinotecan hydrochloride (CPT-11) in rats.

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OBJECTIVE SN-38, a metabolite of irinotecan hydrochloride (CPT-11), is considered to play a key role in the development of diarrhea as well as in the antitumor activity of CPT-11. We have previously found that the inhibition of beta-glucuronidase, which hydrolyzes detoxified SN-38 (SN-38

Specific Inhibition of Bacterial β-Glucuronidase by Pyrazolo[4,3-c]quinoline Derivatives via a pH-Dependent Manner To Suppress Chemotherapy-Induced Intestinal Toxicity.

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The direct inhibition of bacterial β-glucuronidase (βG) activity is expected to reduce the reactivation of glucuronide-conjugated drugs in the intestine, thereby reducing drug toxicity. In this study, we report on the effects of pyrazolo[4,3-c]quinolines acting as a new class of bacterial

[Chemotherapy-induced diarrhea].

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Chemotherapy-induced diarrhea is a well-documented side effect of many cancer treatments and is associated with increased morbidity and mortality. Chemotherapy-induced diarrhea negatively impacts patient quality of life and treatment outcome by requiring dose limitations or treatment interruption.

Therapeutic targeting of CPT-11 induced diarrhea: a case for prophylaxis.

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CPT-11 (irinotecan), a DNA topoisomerase I inhibitor is one of the main treatments for colorectal cancer. The main dose limiting toxicities are neutropenia and late onset diarrhea. Though neutropenia is manageable, CPT-11 induced diarrhea is frequently severe, resulting in hospitalizations, dose

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