Escherichia coli Infections

Publication Title: 
Biological & Pharmaceutical Bulletin

Avian pathogenic Escherichia coli (APEC) causes inflammation in multiple organs of chickens called avian colibacillosis, and results in serious economic loss to the chicken industry. Polyphenolic compounds possess a wide range of physiological activities that may contribute to their beneficial effects against inflammation-related diseases. In this study, the curative effect and mechanism of action of the polyphenolic extracts from Punica granatum L. and Terminalia chebula Retz. in chickens challenged with APEC were studied.

Author(s): 
Zhong, Xinlu
Shi, Yaran
Chen, Jiajia
Xu, Jianqing
Wang, Lei
Beier, Ross C.
Hou, Xiaolin
Liu, Fenghua
Publication Title: 
Journal of Clinical Pathology
Author(s): 
Preston, F. E.
Malia, R. G.
Sworn, M. J.
Blackburn, E. K.
Publication Title: 
Journal of Clinical Pathology

Eight patients with E. coli septicaemia had oliguric renal failure which was associated with haematological evidence of intravascular coagulation. Five of these patients also had the characteristic blood picture of microangiopathic haemolytic anaemia. In an attempt to prevent further deposition of fibrin, intravenous heparin was administered to six patients, three of whom recovered fully and three died. The diagnosis of intravascular coagulation was subsequently confirmed by histological examination of necropsy material and it is suggested that some of the complications of E.

Author(s): 
Preston, F. E.
Malia, R. G.
Sworn, M. J.
Blackburn, E. K.
Publication Title: 
Antimicrobial Agents and Chemotherapy

In the present study artemisinin (ART) was found to have potent anti-inflammatory effects in animal models of sepsis induced by CpG-containing oligodeoxy-nucleotides (CpG ODN), lipopolysaccharide (LPS), heat-killed Escherichia coli 35218 or live E. coli. Furthermore, we found that ART protected mice from a lethal challenge by CpG ODN, LPS, or heat-killed E. coli in a dose-dependent manner and that the protection was related to a reduction in serum tumor necrosis factor alpha (TNF-alpha).

Author(s): 
Wang, Jun
Zhou, Hong
Zheng, Jiang
Cheng, Juan
Liu, Wei
Ding, Guofu
Wang, Liangxi
Luo, Ping
Lu, Yongling
Cao, Hongwei
Yu, Shuangjiang
Li, Bin
Zhang, Lezhi
Publication Title: 
Indian Journal of Experimental Biology

Suvarnamalini vasant-a generic Ayurvedic herbomineral preparation was studied for its immunomodulatory activity by 1) evaluating it's effect on phagocytic function of polymorphonuclear white blood cells of rats and 2) it's effect in E.coli-induced peritonitis in albino mice. Pretreatment of rats with Suvarnamalini vasant improved the phagocytic function of polymorphonuclear white blood cells and also protected mice against E.coli-induced peritonitis. The results indicate the potential of Suvarnamalini vasant as an immunomodulator.

Author(s): 
Sangle, Vishwas
Darp, Medha
Nadkarni, Shailesh
Publication Title: 
Journal of Alternative and Complementary Medicine (New York, N.Y.)

OBJECTIVE: To measure effects of Reiki treatments on growth of heat-shocked bacteria, and to determine the influence of healing context and practitioner well-being. METHODS: Overnight cultures of Escherichia coli K12 in fresh medium were used. Culture samples were paired with controls to minimize any ordering effects. Samples were heat-shocked prior to Reiki treatment, which was performed by Reiki practitioners for up to 15 minutes, with untreated controls. Plate-count assay using an automated colony counter determined the number of viable bacteria.

Author(s): 
Rubik, Beverly
Brooks, Audrey J.
Schwartz, Gary E.
Publication Title: 
Journal of Medicinal Food

Cranberry juice cocktail (CJC) has been shown to inhibit the formation of biofilm by uropathogenic Escherichia coli. In order to investigate whether the anti-adhesive components could reach the urinary tract after oral consumption of CJC, a volunteer was given 16 oz of either water or CJC. Urine samples were collected at 0, 2, 4, 6, and 8 hours after consumption of a single dose. The ability of compounds in the urine to influence bacterial adhesion was tested for six clinical uropathogenic E.

Author(s): 
Tao, Yuanyuan
Pinzón-Arango, Paola A.
Howell, Amy B.
Camesano, Terri A.
Publication Title: 
Journal of Immunology (Baltimore, Md.: 1950)

Glutathione reductase (Gsr) catalyzes the reduction of glutathione disulfide to glutathione, which plays an important role in the bactericidal function of phagocytes. Because Gsr has been implicated in the oxidative burst in human neutrophils and is abundantly expressed in the lymphoid system, we hypothesized that Gsr-deficient mice would exhibit marked defects during the immune response against bacterial challenge.

Author(s): 
Yan, Jing
Meng, Xiaomei
Wancket, Lyn M.
Lintner, Katherine
Nelin, Leif D.
Chen, Bernadette
Francis, Kevin P.
Smith, Charles V.
Rogers, Lynette K.
Liu, Yusen
Publication Title: 
Mayo Clinic Proceedings

OBJECTIVE: To compare the time to urinary tract infection (UTI) and the rates of asymptomatic bacteriuria and urinary P-fimbriated Escherichia coli during a 6-month period in women ingesting cranberry vs placebo juice daily. PATIENTS AND METHODS: Premenopausal women with a history of recent UTI were enrolled from November 16, 2005, through December 31, 2008, at 2 centers and randomized to 1 of 3 arms: 4 oz of cranberry juice daily, 8 oz of cranberry juice daily, or placebo juice. Time to UTI (symptoms plus pyuria) was the main outcome.

Author(s): 
Stapleton, Ann E.
Dziura, James
Hooton, Thomas M.
Cox, Marsha E.
Yarova-Yarovaya, Yuliya
Chen, Shu
Gupta, Kalpana
Publication Title: 
PloS One

BACKGROUND: Enteroaggregative Escherichia coli (EAEC) is recognized as an emerging cause of persistent diarrhea and enteric disease worldwide. Mucosal immunity towards EAEC infections is incompletely understood due in part to the lack of appropriate animal models. This study presents a new mouse model and investigates the role of peroxisome proliferator-activated receptor gamma (PPARγ) in the modulation of host responses to EAEC in nourished and malnourished mice.

Author(s): 
Philipson, Casandra W.
Bassaganya-Riera, Josep
Viladomiu, Monica
Pedragosa, Mireia
Guerrant, Richard L.
Roche, James K.
Hontecillas, Raquel

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