Results 61 to 70 of about 136,223 (377)

Notch2 Directs aTreg Cell Fate toward Immunoregulation or Inflammatory Pyroptosis

open access: yesAdvanced Science, EarlyView.
Schematic illustration showing that the Notch2 intracellular domain (NICD2) facilitates pyroptosis resistance in activated Tregs through the RREB1/Foxo1 signaling pathway. In addition, Notch2‐mediated pyroptosis resistance in activated Tregs promotes immunoregulatory capacity, thereby attenuating Th2‐driven inflammatory responses in allergic rhinitis ...
Yue‐Long Qiao   +10 more
wiley   +1 more source

Recombinogenic activity of Pantoprazole® in somatic cells of Drosophila melanogaster

open access: yesGenetics and Molecular Biology, 2015
Pantoprazole® is one of the leading proton pump inhibitors (PPIs) used in the treatment of a variety of diseases related to the upper gastrointestinal tract.
Jeyson Césary Lopes   +3 more
doaj   +1 more source

Recent perspectives on the relations between faecal mutagenicity, genotoxicity and diet [PDF]

open access: yes, 2011
Peer reviewedPublisher ...
Hani eEl-Nezami   +3 more
core   +4 more sources

Structure‐Guided Engineering of a Cas12i Nuclease Unlocks Near‐PAMless Genome Editing

open access: yesAdvanced Science, EarlyView.
CRISPR‐Cas nucleases are limited by PAM requirements, restricting genome accessibility. Structure‐guided engineering of the compact Cas12i nuclease SF01 produced three variants with near‐PAMless, enabling efficient editing at diverse 5'‐NNTN‐3' sites. These nucleases expand the editable portion of the human genome more than fourfold, enabling efficient
Qitong Chen   +15 more
wiley   +1 more source

Atmospheric chemistry of gas-phase polycyclic aromatic hydrocarbons: formation of atmospheric mutagens. [PDF]

open access: yes, 1994
The atmospheric chemistry of the 2- to 4-ring polycyclic aromatic hydrocarbons (PAH), which exist mainly in the gas phase in the atmosphere, is discussed. The dominant loss process for the gas-phase PAH is by reaction with the hydroxyl radical, resulting
Atkinson R   +8 more
core   +3 more sources

Structure‐Guided Engineering of a Promiscuous O‐Methyltransferase for a SAM Regeneration Biocatalysis Platform of Methylated Pharmaceuticals

open access: yesAdvanced Science, EarlyView.
A substrate promiscuous and regioselective O‐methyltransferase, SmOMT, is functionally and structurally characterized. A double mutant, SmOMTE152A/I306A, exhibited enhanced catalytic activity. By coupling this mutant with a mutant halide methyltransferase, AtHMTV140T, for SAM regeneration, a superior artificial fusion enzyme, AtHMTV140T‐L95‐SmOMTE152A ...
Xiran Xiong   +11 more
wiley   +1 more source

Genotoxic and mutagenic effects of polluted surface water in the midwestern region of Brazil using animal and plant bioassays

open access: yesGenetics and Molecular Biology, 2016
This study aimed to evaluate DNA damage in animal and plant cells exposed to water from the Água Boa stream (Dourados, Mato Grosso do Sul, Brazil) by using bioassays, and to identify the chemical compounds in the water to determine the water quality in ...
Priscila Leocádia Rosa Dourado   +8 more
doaj   +1 more source

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

open access: yesAdvanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan   +20 more
wiley   +1 more source

The genoprotective activity of resveratrol on permethrin-induced genotoxic damage in cultured human lymphocytes

open access: yesBrazilian Archives of Biology and Technology, 2013
The aim of this work was to investigate the genetic effects of resveratrol (RSV) at concentrations of 10, 15, 25, 40, 75 and 100 µM and its activities on the genotoxicity induced by the permethrin (PM) (200 µM).
Hasan Turkez, Elanur Aydin
doaj   +1 more source

Systematic Engineering of Proteases in Saccharopolyspora Spinosa Reveals Synergistic Enhancement of Spinosad Biosynthesis via Substrate Flux Optimization

open access: yesAdvanced Science, EarlyView.
ARTP mutagenesis yielded Saccharopolyspora spinosa mutant D184 with improved extracellular nitrogen utilization. An integrated workflow of protease genetic manipulation, multi‐omics, and rational synergy design pinpointed a pepP‐clpP‐htpX synergistic triangular combination.
Duo Jin   +9 more
wiley   +1 more source

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