Results 121 to 130 of about 723,786 (352)

Interaction of primary mast cells with Borrelia burgdorferi (sensu stricto): role in transmission and dissemination in C57BL/6 mice

open access: yesParasites & Vectors, 2017
Background Borrelia burgdorferi (sensu lato), the causative agent of Lyme borreliosis is a bacterium transmitted by hard ticks, Ixodes spp. Bacteria are injected into the host skin during the tick blood meal with tick saliva.
Quentin Bernard   +3 more
doaj   +1 more source

T2T Genomes Unveil Centromere Architecture and Adaptive Divergence in Large Yellow Croaker (Larimichthys crocea)

open access: yesAdvanced Science, EarlyView.
This study presents telomere‐to‐telomere genome assemblies for two populations of Larimichthys crocea. We identified centromere‐specific tandem repeats invaded by LTR/ERV1 retrotransposons, unique 5S rRNA enrichment patterns, and population‐specific structural variants. Comparative genomic analyses further reveal distinct adaptive mechanisms in the MYD
Yu Cui   +9 more
wiley   +1 more source

Engineering Bacteria as Living Therapeutics in Cancer Therapy

open access: yesAdvanced Science, EarlyView.
Through synthetic biology approaches, natural bacteria can be genetically programmed into multifunctional living therapeutics. These engineered bacteria are capable of secreting anti‐tumor factors, displaying tumor‐associated antigens on their surface, or undergoing programmed self‐lysis to release therapeutic cargo.
Jiangfeng Chen   +6 more
wiley   +1 more source

Photocontrolled Release of Urea Enables the Detection of Urea–Urease Intermediates by Cryo‐FTIR

open access: yesAngewandte Chemie, EarlyView.
Urease is a fast enzyme, presenting kcat of the order of 103–104 s−1. To enable the visualization of its mechanism we explored the technique of cryo‐FTIR. By means of using a ruthenium complex as a caged‐urea, upon light irradiation urea was released and we could see the coordination of the urea to the active site.
Caterina G.C. Marques Netto   +7 more
wiley   +2 more sources

Methicillin-resistant and methicillin-susceptible Staphylococcus aureus in French hedgehogs admitted to a wildlife health center

open access: yesOne Health
The mecC gene conferring methicillin-resistance has always been found on a SCCmec type XI element and is largely restricted to the few clonal complexes CC130, CC1943, CC425, CC49 and CC599.
Marisa Haenni   +9 more
doaj   +1 more source

Smart Gated Hollow Mesoporous Silica Hydrogel for Targeting Endoplasmic Reticulum Stress and Promoting Periodontal Tissue Regeneration

open access: yesAdvanced Science, EarlyView.
The hollow mesoporous silica loaded with quercetin (HM‐QU@PEG) is combined with a thermosensitive anti‐bacterial matrix (TF127) to prepare HQUP@TF127. HQUP@TF127 effectively eliminates excessive ROS, alleviates endoplasmic reticulum stress, relieves mitochondrial calcium overload, and blocks the p53‐dependent apoptotic cascade. Furthermore, it enhances
Guichun Wang   +14 more
wiley   +1 more source

Polymorphic α‐Glucans as Structural Scaffolds in Cryptococcus Cell Walls for Chitin, Capsule, and Melanin: Insights From 13C and 1H Solid‐State NMR

open access: yesAngewandte Chemie, EarlyView.
Cryptococcus neoformans cell wall α‐1,3‐glucans as dual anchors for melanin and capsule: Solid‐state NMR of intact C. neoformans cells reveals five forms of α‐1,3‐glucans that structurally bridge melanin and capsule layers. These polysaccharides interact with chitin, chitosan, and β‐glucans to create a molecular scaffold that underlies virulence and ...
Ankur Ankur   +11 more
wiley   +2 more sources

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