Group 3 innate lymphocytes (ILC3s) are rare immune cells localized in mucosal tissues, especially the gastrointestinal (GI) tract. Despite their rarity, they are a major source of the cytokine interleukin-22 (IL-22), which protects the GI epithelium during inflammation and infection. Although ILC3s …

Endolysin is a phage-encoded cell-wall hydrolase which degrades the peptidoglycan layer of the bacterial cell wall. The enzyme is often expressed at the late stage of the phage lytic cycle and is required for progeny escape. Endolysins of bacteriophage that infect Gram-positive bacteria often compri …

C. difficile spores were found to survive the acidity and cooking of fermented pork summer sausage and storage at 4°C for 3 months, thereby highlighting the need for effective intervention strategies to reduce the risk of C. difficile contamination in pork products.

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Asymptomatic bacteriuria is a common clinical condition that often leads to unnecessary treatment. It has been shown that incidence of asymptomatic bacteriuria increases with age and are more prominent in women than men. In older women, the incidence of asymptomatic bacteriuria is recorded to be mor …

Clostridioides difficile infection (CDI) is the leading cause of hospital-acquired diarrhea, and emerging evidence has linked dietary components with CDI pathogenesis, suggesting that dietary modulation may be an effective strategy for prevention. Here, we show that mice fed a high-fat/low-fiber "We …

Nosocomial infections with Clostridioides (Clostridium) difficile have become an emergent health threat. We sought to define risk factors for a C. difficile infection (CDI) beyond the widely known ones, such as antibiotic use and prior hospital stay. We therefore focused on a group of …

An intact gut microbiota confers colonization resistance against Clostridioides difficile through a variety of mechanisms, likely including competition for nutrients. Recently, proline was identified as an important environmental amino acid that C. difficile uses to support growth and cause signific …

Clostridioides difficile is a Gram-positive, spore-forming anaerobic bacteria that is one of the leading causes of antibiotic-associated diarrhea. The cell wall protein 66 gene (cwp66) encodes a cell wall protein, which is the second major cell surface antigen of C. difficile. Although immuno …

Our results show that human PMNs are resistant to TcdB GTPase glucosyltransferase activity against RhoA and Rac1.

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Although robotic surgeries have been shown to have several advantages, risk of postsurgical complications remains. We present a rare case of fulminant C. difficile colitis that complicated a robotic-assisted pyelolithotomy. Active prevention, early detection, and optimization of management are essen …

The Papin Lab makes it possible to apply the understanding of the nature of the bacteria to new treatment options for C. difficile bacterial infection. 

Clostridioides difficile infection (CDI) in humans causes pseudomembranous colitis (PMC), which is a severe pathology characterized by a loss of epithelial barrier function and massive colonic inflammation. PMC has been attributed to the action of two large protein toxins, Toxin A (TcdA) and …

Gastrointestinal illnesses and dysbiosis are among the most common comorbidities reported in patients with neurodevelopmental disorders. The manuscript reports that C. difficile infection (CDI), predisposed by antibiotic-induced gut dysbiosis, causes significant alterations in dopamine metabolism in …

Clostridioides difficile secretes Toxin B (TcdB) as one of its major virulence factors, which binds to intestinal epithelial and subepithelial receptors, including frizzled proteins and chondroitin sulfate proteoglycan 4 (CSPG4). Here, we present cryo-EM structures of full-length TcdB in complex wit …

The prevalence of C. difficile in children with diarrhoea was high (37.8%) although the proportion of toxigenic strains was comparatively low. The clinical significance of any isolate needs to be determined.

The presence of antigen-specific and neutralizing antibodies was not associated with Clostridioides difficile infection symptoms, severity, therapy approach, treatment response, or recurrences in a new exploratory study.

Clostridioides (Clostridium) difficile is one of the leading causes of nosocomial diarrhea. Lysozyme is a common host defense against many pathogenic bacteria. C. difficile exhibits high levels of lysozyme resistance, which is due in part to the extracytoplasmic functioning (ECF) σ factor, σV …

Are you a UK resident #BlackStudent with an interest in #superbugs #microbiology #biochemistry or #structuralbiology and wanting to do a #PhD? Contact me if you'd like to join us studying #Cdiff and apply for a @UniofNewcastle #PhDstudentship https://t.co/BwxIrT4JKl Pls RT/share— Paula Salgado (@pssalgado) March 21, 2022

For the first time, a research team mapped C difficile’s outer “S-layer,” finding the dangerous bacteria’s chainmail-like shell enables it to be highly resistant.

Symptoms of Clostridioides difficile infection (CDI) are attributed largely to two toxins, TcdA and TcdB. About 17-23% of C. difficile isolates produce binary toxin, which enhances C. difficile pathogenesis. Previously, we engineered the nontoxigenic C. difficile strain CCUG37785 (designated as CCUG …

A chainmail-like, flexible outer layer on Clostridium difficile may explain its success at defending itself against antibiotics.

Clostridioides difficile toxin A and B (TcdA and TcdB) are two major virulence factors responsible for diseases associated with C. difficile infection (CDI). Here, we report the 3.18-Å resolution crystal structure of a TcdA fragment (residues L843-T2481), which advances our understandi …

Decreased effectiveness of metronidazole in Clostridioides difficile infection treatment has been documented. One reason is levels of metronidazole in the colon are generally low therefore a modest increase in the minimal inhibitory concentration of metronidazole for C. difficile may result in insuf …

The emergence of hypervirulent clade 2 Clostridioides difficile is associated with severe symptoms and accounts for 20% of global infections. TcdB is a dominant virulence factor of C. difficile, and clade 2 strains exclusively express two TcdB variants (TcdB2 and TcdB4) that use unknown receptor …