Publications by authors named "Dina E Rizk"

Article Synopsis
  • Enterohemorrhagic Escherichia coli (EHEC) O157 is known for causing serious illnesses like hemorrhagic colitis and hemolytic uremic syndrome, but non-O157 strains are also emerging as significant pathogens.
  • In a study conducted in Egypt, 335 samples were collected, revealing that nearly half were EHEC, with the O111, O91, O26, and O55 serotypes being the most common across various sources like stool, urine, and food products.
  • The analysis of virulence genes showed high prevalence of genes such as sheA, stx2, and eae, and genetic testing revealed diverse strains with significant similarities, highlighting the complexity and potential
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Acute respiratory distress syndrome (ARDS) is a life-threatening disorder with a high rate of mortality. Complement activation in ARDS initiates a robust inflammatory reaction that can cause progressive endothelial injury in the lung. Here, we tested whether inhibition of the lectin pathway of complement could reduce the pathology and improve the outcomes in a murine model of LPS-induced lung injury that closely mimics ARDS in human.

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is a common pathogen in both humans and animals. Quinolones are used to treat infections caused by Gram-negative bacteria, but resistance genes emerged. Only scarce studies investigated the association between plasmid-mediated quinolone resistance (PMQR) genes and integrons in clinical isolates of .

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Background: The complement system is a key player in innate immunity and a modulator of the adaptive immune system. Among the three pathways of complement, the alternative pathway (AP) accounts for most of the complement activation. Factor B (FB) is a major protease of the AP, making it a promising target to inhibit the AP activity in conditions of uncontrolled complement activation.

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Introduction: is one of the important causes of nosocomial infections. Analyzing the diversity of these isolates is important to control the diseases caused by them. Studies of molecular epidemiology depend on the application of typing methods.

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Introduction: is considered a dangerous pathogen, as it causes many human diseases, besides that it is resistant to almost all types of antibacterial agents. So, new strategies to overcome infection have evolved to attenuate its virulence factors and inhibit its quorum-sensing (QS) activity.

Purpose: This study investigated the effect of tyrosol and EDTA as anti-quorum-sensing and antivirulence agents against PAO1.

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Introduction: Methicillin resistant Staphylococcus aureus (MRSA) is a versatile pathogen capable of causing multitude of human diseases. It is one of the most important nosocomial pathogen that implicated in community and healthcare associated infections. Therefore, this study aims to characterize different SCCmec elements found in MRSA isolates.

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In spite of the role of integrons as the main contributor to multidrug resistance worldwide, their prevalence in Egypt is still underestimated. In this work, we announce the emergence of class 2 and 3 integrons among Enterobacteriacae isolates from Mansoura University Hospitals. Ninety-three clinical isolates were obtained from different clinical sources, among which 70% of E.

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