Results 41 to 50 of about 2,972 (172)

The genotoxin colibactin

open access: yesToxicon, 2016
Escherichia coli is a commensal inhabitant of the lower gastrointestinal tract of humans where it is the predominant facultative anaerobic organism. E. coli also belongs to the initial microbiota that colonizes the mammalian gut. Infants are stably colonized by E. coli within a few days after birth. Certain E.
openaire   +3 more sources

Rising Incidence and Mortality of Colorectal Cancer Among Younger Adults: A Population‐Based Study in Taiwan, 1994–2018

open access: yesInternational Journal of Cancer, EarlyView.
Colorectal cancer incidence and mortality have increased in the Asia‐Pacific region over the past three decades. This population‐based study in Taiwan suggests a shift of the colorectal cancer burden towards the younger generations. An age–period–cohort model revealed higher annual increases in incidence (3.58%) and mortality (1.0%) rates among ...
Yun‐Chen Tsai   +3 more
wiley   +1 more source

Rho GTPases: Novel Players in the Regulation of the DNA Damage Response?

open access: yesBiomolecules, 2015
The Ras-related C3 botulinum toxin substrate 1 (Rac1) belongs to the family of Ras-homologous small GTPases. It is well characterized as a membrane-bound signal transducing molecule that is involved in the regulation of cell motility and adhesion as well
Gerhard Fritz, Christian Henninger
doaj   +1 more source

Organ‐Specific Human Microbiomes and Dysbiosis: Mechanistic Links to Disease and Emerging Therapeutic Strategies

open access: yesJournal of Clinical Laboratory Analysis, EarlyView.
Schematic overview of the human microbiome and major microbiota‐derived metabolites across body sites, highlighting the gut–brain, gut–heart, and gut–kidney axes in host physiology and disease. ABSTRACT Background The human microbiome is a dynamic and diverse community of microorganisms that affects susceptibility to illness and promotes wellness ...
Awadh Alanazi
wiley   +1 more source

Genotoxins and the initiation of sporadic breast cancer [PDF]

open access: yesMutagenesis, 2001
Breast cancer is the most frequently diagnosed female malignancy world-wide. The aetiology of the majority of cases remains obscure and the only genotoxin as yet known to initiate breast cancer is ionizing radiation. High penetrance susceptibility genes probably account for no more than 5-10% of cases.
openaire   +2 more sources

From DNA Damage to Cancer Progression: Potential Effects of Cytolethal Distending Toxin

open access: yesFrontiers in Immunology, 2021
Cytolethal distending toxin (CDT), one of the most important genotoxins, is produced by several gram-negative bacteria and is involved in bacterial pathogenesis.
Yi-Ru Lai   +16 more
doaj   +1 more source

Dasatinib and quercetin prevent alveolar bone loss in aged mice

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Recent findings have associated alveolar bone loss (ABL) with the presence of senescent cells. Aging and the accumulation of senescent cells are associated with a pro‐inflammatory environment which may exacerbate tissue damage.
Luisa S. Battistelli   +7 more
wiley   +1 more source

Cytolethal distending toxin enhances Escherichia coli urinary tract infection

open access: yesInfection and Immunity
Cytolethal distending toxin (CDT) is a virulence factor produced by several gram-negative bacteria, including Escherichia coli, the most prevalent etiological agent of urinary tract infections (UTIs). CDT causes DNA damage to eukaryotic cells, leading to
Santosh Paudel   +5 more
doaj   +1 more source

Aging and periodontitis increase brain dissemination of oral bacteria

open access: yesJournal of Periodontology, EarlyView.
Abstract Background The microbiome is a dynamic system that changes throughout life. Studies have revealed the relationship between periodontal disease and the oral microbiota; however, the impact of periodontal disease on the expression of senescence markers and on the inflammaging of the oral and systemic microbiome remains unclear.
Ozge Unlu   +7 more
wiley   +1 more source

Protocol for HeLa Cells Infection with Escherichia coli Strains Producing Colibactin and Quantification of the Induced DNA-damage

open access: yesBio-Protocol, 2017
Strains of Escherichia coli bearing the pks genomic island synthesize the genotoxin colibactin. Exposure of eukaryotic cells to E. coli producing colibactin induces DNA damages, ultimately leading to cell cycle arrest, senescence and death.
Nadège Bossuet-Greif   +4 more
doaj   +1 more source

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