Results 1 to 10 of about 999,551 (181)

Intestinal α-Defensins Play a Minor Role in Modulating the Small Intestinal Microbiota Composition as Compared to Diet [PDF]

open access: yesMicrobiology Spectrum, 2023
The intestinal microbiota is at the interface between the host and its environment and thus under constant exposure to host-derived and external modulators.
Fabiola Puértolas-Balint   +1 more
doaj   +3 more sources

α-Defensins Promote Bacteroides Colonization on Mucosal Reservoir to Prevent Antibiotic-Induced Dysbiosis [PDF]

open access: yesFrontiers in Immunology, 2020
In addition to their established functions in host defense, accumulating evidence has suggested an emerging role for antimicrobial proteins (AMPs) in shaping commensal microbiota.
Jiayao Ou   +11 more
doaj   +2 more sources

Variations in the interaction of human defensins with Escherichia coli: Possible implications in bacterial killing. [PDF]

open access: yesPLoS ONE, 2017
Human α and β-defensins are cationic antimicrobial peptides characterized by three disulfide bonds with a triple stranded β-sheet motif. It is presumed that interaction with the bacterial cell surface and membrane permeabilization by defensins is an ...
Basil Mathew, Ramakrishnan Nagaraj
doaj   +2 more sources

Scots pine defensins inhibit Ips acuminatus α-amylase activity [PDF]

open access: yesБіологічні студії, 2023
Background. Pine bark beetle Ips acuminatus (Gyllenhal, 1827) is one of the most harmful pests of pine trees as it affects the phloem of the upper part of the stem and branches, disrupting the flow of nutrients and water to the crown. I. acuminatus feeds
Yurii Yusypovych   +7 more
doaj   +2 more sources

A Novel Approach on Leukodepletion Filters: Investigation of Synergistic Anticancer Effect of Purified α-Defensins and Nisin [PDF]

open access: yesAdvanced Pharmaceutical Bulletin, 2021
Purpose: There are number of reports available regarding defensins activity against mammalian cells besides their antimicrobial and immune regulatory activities.
Niloofar Sasani   +3 more
doaj   +2 more sources

The significance of α-defensins 1-3 in Behcet’s disease: a case-control study among Egyptian patients

open access: yesEgyptian Rheumatology and Rehabilitation, 2020
Background Behcet’s disease (BD) is associated with uveitis, oral ulcers, genital ulcers and arthritis. Enhanced activity of innate immunity components, such as neutrophils, natural killer (NK) cells and endothelial cells, is a prominent feature of BD ...
Reham M. Shaat   +4 more
doaj   +2 more sources

Characterization of two novel defensins Han-Def1 and Han-Def2 from Hyalomma anatolicum [PDF]

open access: yesFrontiers in Microbiology
BackgroundHyalomma anatolicum is an important vector of veterinary and zoonotic pathogens, posing potential threats to livestock production and public health.
Tingxiang Luo   +22 more
doaj   +2 more sources

A pilot study for evaluating the feasibility of using alpha-defensin to support the diagnosis of ventriculitis

open access: yesInternational Journal of Infectious Diseases, 2023
Objectives: Nosocomial ventriculitis is a difficult infectious condition to diagnose given that typical cerebral spinal fluid (CSF) parameters, commonly used in the diagnosis of meningitis, lack sensitivity and specificity in nosocomial ventriculitis ...
James B. Doub
doaj   +1 more source

Alpha-defensins inhibit ERK/STAT3 signaling during monocyte-macrophage differentiation and impede macrophage function

open access: yesRespiratory Research, 2023
Alpha-1-antitrypsin deficiency (AATD) is a genetic disorder associated with a 5–tenfold decrease in lung levels of alpha-1-antitrypsin (AAT) and an increased risk for obstructive lung disease.
Jungnam Lee   +5 more
doaj   +1 more source

The evolution of antimicrobial peptides in Chiroptera

open access: yesFrontiers in Immunology, 2023
High viral tolerance coupled with an extraordinary regulation of the immune response makes bats a great model to study host-pathogen evolution. Although many immune-related gene gains and losses have been previously reported in bats, important gene ...
Francisco X. Castellanos   +15 more
doaj   +1 more source

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