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Hype or hypervirulence a reflection on problematic C. difficile strains. - PubMed - NCBI
Hype or hypervirulence a reflection on problematic C. difficile strains. - PubMed - NCBI
Clostridium difficile infections (CDI) have emerged as a major cause of healthcare associated disease, and recent epidemiological evidence also suggests an important role in community-acquired diarrhea. This increase is associated with specific types, especially PCR ribotypes 027 and 078, which are …
·ncbi.nlm.nih.gov·
Hype or hypervirulence a reflection on problematic C. difficile strains. - PubMed - NCBI
Is there a causal relationship between trehalose consumption... Current Opinion in Gastroenterology
Is there a causal relationship between trehalose consumption... Current Opinion in Gastroenterology
c ribotypes of C. difficile harbour mutations or have acquired extra genes that mean these strains can utilize lower concentrations of bioavailable trehalose, providing a competitive metabolic advantage in some CDI animal models. By contrast, evidence has emerged to show that trehalose-induced microbiota changes can help protect/reduce CDI in other models. In addition, C. difficile trehalose metabolic variants are widespread among epidemic and nonepidemic ribotypes alike, and the occurrence of these trehalose variants was not associated with increase disease severity or mortality. Summary Currently, there is no proven causal association between the incidence or severity of human CDI and the presence of trehalose metabolism variants. Furthermore, microbial metabolism reduces trehalose bioavailability, potentially removing this competitive advantage for C. difficile trehalose metabolism variants. Taken together, trehalose consumed as part of a normal diet has no increased risk of CDI....
·journals.lww.com·
Is there a causal relationship between trehalose consumption... Current Opinion in Gastroenterology
Microorganisms Free Full-Text Insights into the Role of Human Gut Microbiota in Clostridioides difficile Infection
Microorganisms Free Full-Text Insights into the Role of Human Gut Microbiota in Clostridioides difficile Infection
Clostridioides difficile infection (CDI) has emerged as a major health problem worldwide. A major risk factor for disease development is prior antibiotic use, which disrupts the normal gut microbiota by altering its composition and the gut’s metabolic functions, leading to the loss of colonization resistance and subsequent CDI. Data from human studies have shown that the presence of C. difficile, either as a colonizer or as a pathogen, is associated with a decreased level of gut microbiota diversity. The investigation of the gut’s microbial communities, in both healthy subjects and patients with CDI, elucidate the role of microbiota and improve the current biotherapeutics for patients with CDI. Fecal microbiota transplantation has a major role in managing CDI, aiming at re-establishing colonization resistance in the host gastrointestinal tract by replenishing the gut microbiota. New techniques, such as post-genomics, proteomics and metabolomics analyses, can possibly determine in the future the way in which C. difficile eradicates colonization resistance, paving the way for the development of new, more successful treatments and prevention. The aim of the present review is to present recent data concerning the human gut microbiota with a focus on its important role in health and disease.
·mdpi.com·
Microorganisms Free Full-Text Insights into the Role of Human Gut Microbiota in Clostridioides difficile Infection
Probiotic Supplementation in a Clostridium difficile-Infected Gastrointestinal Model Is Associated with Restoring Metabolic Function of Microbiota
Probiotic Supplementation in a Clostridium difficile-Infected Gastrointestinal Model Is Associated with Restoring Metabolic Function of Microbiota
Clostridium (C.) difficile-infection (CDI), a nosocomial gastrointestinal disorder, is of growing concern due to its rapid rise in recent years. Antibiotic therapy of CDI is associated with disrupted metabolic function and altered gut microbiota. The use of probiotics as an adjunct is being studied extensively due to their potential to modulate metabolic functions and the gut microbiota. In the present study, we assessed the ability of several single strain probiotics and a probiotic mixture to change the metabolic functions of normal and C. difficile-infected fecal samples. The production of short-chain fatty acids (SCFAs), hydrogen sulfide (H2S), and ammonia was measured, and changes in microbial composition were assessed by 16S rRNA gene amplicon sequencing. The C. difficile-infection in fecal samples resulted in a significant decrease (p < 0.05) in SCFA and H2S production, with a lower microbial alpha diversity. All probiotic treatments were associated with significantly increased (p < 0.05) levels of SCFAs and restored H2S levels. Probiotics showed no effect on microbial composition of either normal or C. difficile-infected fecal samples. These findings indicate that probiotics may be useful to improve the metabolic dysregulation associated with C. difficile infection.
·mdpi.com·
Probiotic Supplementation in a Clostridium difficile-Infected Gastrointestinal Model Is Associated with Restoring Metabolic Function of Microbiota
Superbug impact on the gut -- ScienceDaily
Superbug impact on the gut -- ScienceDaily
Researchers have discovered that the devastating bacterial superbug Clostridioides difficile hijacks the human wound healing system in order to cause serious and persistent disease, opening up the development of new therapies to treat the disease.
·sciencedaily.com·
Superbug impact on the gut -- ScienceDaily
A randomized crossover study comparing trehalosehyaluronate eyedrops and standard treatment patient satisfaction in the treatment of dry eye synd... - PubMed - NCBI
A randomized crossover study comparing trehalosehyaluronate eyedrops and standard treatment patient satisfaction in the treatment of dry eye synd... - PubMed - NCBI
Dry eye is a common disorder in routine ophthalmological practice, and a better understanding of the complex pathophysiology is leading to improved treatment. Thealoz Duo(®) is a novel artificial tear preparation containing two active ingredients: Trehalose, a naturally occurring disaccharide with a …
·ncbi.nlm.nih.gov·
A randomized crossover study comparing trehalosehyaluronate eyedrops and standard treatment patient satisfaction in the treatment of dry eye synd... - PubMed - NCBI
A randomized, controlled study of the efficacy and safety of a new eye (...)
A randomized, controlled study of the efficacy and safety of a new eye (...)
Hyaluronic acid-trehalose is effective and safe, with better patient satisfaction, than existing HA-only eyedrops particularly from the first month of treatment, and offers a therapeutic advancement in the treatment of moderate to severe DED.
·ncbi.nlm.nih.gov·
A randomized, controlled study of the efficacy and safety of a new eye (...)
Alleviation of cadmium-induced oxidative stress by trehalose via inhibiting the Nrf2-Keap1 signaling pathway in primary rat proximal tubular cells. - PubMed - NCBI
Alleviation of cadmium-induced oxidative stress by trehalose via inhibiting the Nrf2-Keap1 signaling pathway in primary rat proximal tubular cells. - PubMed - NCBI
Nuclear factor erythroid 2-related factor 2 (Nrf2) is a transcription factor that regulates a cluster of oxidative stress-inducible genes in cells. Here, we aimed to investigate whether trehalose (Tre) protects primary rat proximal tubular (rPT) cells against cadmium (Cd)-induced oxidative stress vi …
·ncbi.nlm.nih.gov·
Alleviation of cadmium-induced oxidative stress by trehalose via inhibiting the Nrf2-Keap1 signaling pathway in primary rat proximal tubular cells. - PubMed - NCBI
An impediment to random walk Trehalose microenvironment drives prefere (...)
An impediment to random walk Trehalose microenvironment drives prefere (...)
Developing effective theranostic nanoplex platforms for personalized disease treatment necessitates an understanding of and the ability to control live cell–nanoparticle interactions. However, aggregation of nanoparticles on the cell surface and their subsequent internalization is sparsely understood and adv
·pubs.rsc.org·
An impediment to random walk Trehalose microenvironment drives prefere (...)
Autophagy induction by trehalose Molecular mechanisms and therapeutic impacts. - PubMed - NCBI
Autophagy induction by trehalose Molecular mechanisms and therapeutic impacts. - PubMed - NCBI
The balance between synthesis and degradation is crucial to maintain cellular homeostasis and different mechanisms are known to keep this balance. In this review, we will provide a short overview on autophagy as an intracellular homeostatic degradative machinery. We will also describe the involvemen …
·ncbi.nlm.nih.gov·
Autophagy induction by trehalose Molecular mechanisms and therapeutic impacts. - PubMed - NCBI
Beneficial effects of trehalose on striatal dopaminergic deficits in rodent and primate models of synucleinopathy in Parkinson's disease. - PubMed - NCBI
Beneficial effects of trehalose on striatal dopaminergic deficits in rodent and primate models of synucleinopathy in Parkinson's disease. - PubMed - NCBI
Disease modification in Parkinson's disease (PD) is an unmet medical need. In the current study, we evaluated trehalose, a safe and well-tolerated disaccharide that has previously demonstrated efficacy in rodent models of neurodegenerative diseases, including PD. In a rat model of PD, based on deliv …
·ncbi.nlm.nih.gov·
Beneficial effects of trehalose on striatal dopaminergic deficits in rodent and primate models of synucleinopathy in Parkinson's disease. - PubMed - NCBI
Biomolecules Free Full-Text Trehalose for Ocular Surface Health
Biomolecules Free Full-Text Trehalose for Ocular Surface Health
Trehalose is a natural disaccharide synthesized in various life forms, but not found in vertebrates. An increasing body of evidence demonstrates exceptional bioprotective characteristics of trehalose. This review discusses the scientific findings on potential functions of trehalose in oxidative stress, protein clearance, and inflammation, with an emphasis on animal models and clinical trials in ophthalmology. The main objective is to help understand the beneficial effects of trehalose in clinical trials and practice, especially in patients suffering from ocular surface disease. The discussion is supplemented with an overview of patents for the use of trehalose in dry eye and with prospects for the 2020s.
·mdpi.com·
Biomolecules Free Full-Text Trehalose for Ocular Surface Health
Biosynthesis of Astrocytic Trehalose Regulates Neuronal Arborization i (...)
Biosynthesis of Astrocytic Trehalose Regulates Neuronal Arborization i (...)
Trehalose is a nonreducing disaccharide that has recently attracted much attention because of its ability to inhibit protein aggregation, induce autophagy, and protect against dissections and strokes. In vertebrates, the biosynthesis of trehalose was long considered absent due to the lack of annotated genes involved in this process. In contrast, trehalase (TreH), which is an enzyme required for the cleavage of trehalose, is known to be conserved and expressed. Here, we show that trehalose is present as an endogenous metabolite in the rodent hippocampus. We found that primary astrocytes were able to synthesize trehalose and release it into the extracellular space. Notably, the TreH enzyme was observed only in the soma of neurons, which are the exclusive users of this substrate. A statistical analysis of the metabolome during different stages of maturation indicated that this metabolite is implicated in neuronal maturation. A morphological analysis of primary neurons confirmed that trehalose is required for neuronal arborization.
·pubs.acs.org·
Biosynthesis of Astrocytic Trehalose Regulates Neuronal Arborization i (...)