Results 101 to 110 of about 1,082,657 (258)
Advanced Science, EarlyView.Orally administered, pH‐responsive Co‐SAN exerts dual functions: in the alkaline intestinal milieu, it scavenges reactive oxygen species (ROS) and suppresses the PI3K/AKT pathway and NETs formation, thus providing radioprotection; whereas in the acidic tumor microenvironment, it generates ROS and alleviates hypoxia, thereby enhancing radiosensitization.
Shengqi Yin +13 more
wiley +1 more source
Mechanical Flexibility Enables DNA Origami to Overcome Steric Confinement in Mucus
Advanced Science, EarlyView.Mechanical flexibility is introduced as a design parameter to enhance nanocarrier transport in mucus. Using DNA origami, flexibility is decoupled from size, shap and surface chemistry, revealing improved passage through confined hydrogel networks. While surface passivation reduces aggregation, flexibility further boosts transport, offering a general ...
Matteo Tollemeto +5 more
wiley +1 more source
mBioBile acids play a critical role in the emulsification of dietary lipids, a critical step in the primary function of the small intestine, which is the digestion and absorption of food.
Jenni Firrman +7 more
doaj +1 more source
Advanced Science, EarlyView.In the pathological context of osteoarthritis (OA), the phosphorylation of AKT1 at Ser473 enhances its binding to Lys140 of Insig1, which facilitates the formation of AKT1–Insig1 complex. Subsequently, the activation of AKT1 promotes the phosphorylation of Insig1 at Ser189, potentially enhancing the dissociation of Insig1 from sterol regulatory element‑
Xiaoqi Zhang +19 more
wiley +1 more source
Chemoselective Metabolomics via a Modular Reactivity‐Encoding Platform
Advanced Science, EarlyView.Conventional LC–MS underrepresents numerous metabolites due to heterogeneous ionization efficiencies and matrix interference. Here, we introduce a modular reactivity‐encoding platform (MREP) comprising four alkyne‐tagged probes that selectively derivatize key functional groups, followed by unified click‐chemistry capture to eliminate matrix components ...
Xin Tao +10 more
wiley +1 more source
Hydrophobic bile acids, genomic instability, Darwinian selection, and colon carcinogenesis
, 2008 Claire M Payne, Carol Bernstein, Katerina Dvorak, Harris BernsteinDepartment of Cell Biology and Anatomy, College of Medicine, University of Arizona, Tucson, Arizona, USAAbstract: Sporadic colon cancer is caused predominantly by dietary factors.
Harris Bernstein +3 more
core
An N-acyl glycyltaurine conjugate of deoxycholic acid in the biliary bile acids of the rabbit
Journal of Lipid Research, 1998 The biliary bile acid composition of the adult and neonatal domestic rabbit, as well as that of the adult brush rabbit, was characterized. In adult domestic rabbits, the dominant bile acid present was deoxycholic acid (88“% of total bile acids), a ...
Lee R. Hagey +4 more
doaj +1 more source
Advanced Science, EarlyView.Sterol engineering enables precise control of mRNA lipid nanoparticles by tuning membrane organization. Replacing cholesterol with bile acid‐derived sterols redirects protein expression from the liver to the spleen. Notably, CA‐20 LNP enhances antigen‐specific immune responses while exhibiting a favorable safety profile, highlighting sterols as a ...
Sanghyuk Jeon +27 more
wiley +1 more source
Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics
Advanced Science, EarlyView.This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li +8 more
wiley +1 more source
Advanced Science, EarlyView.Our study identifies an Hnf4a‐driven super‐enhancer of hepatic Ahcy that mediates the protective effects of intermittent fasting against MASLD. Disruption of the Ahcy super‐enhancer reduces Ahcy expression and exacerbates lipid accumulation. This pathway prevents aberrant promoter hypermethylation by maintaining the SAM/SAH balance, as exemplified by ...
Huafeng Chen +6 more
wiley +1 more source