Results 111 to 120 of about 18,930 (288)

Tau Aggregate Imaging and Transcriptomics of Alzheimer's Disease Brain at Different Stages of Disease

Advanced Science, EarlyView.
The protein aggregates and gene expression in the middle temporal gyrus (MTG) and somatosensory cortex (SOM) of the postmortem brains of 13 Alzheimer's disease patients were studied in detail, revealing that small hyperphosphorylated tau aggregates increase with Braak stage driven by microglial inflammation.
Elizabeth A. English, Dorothea Böken, Matthew W. Cotton, Matthew R. Cheetham, Johanna S. Jackson, Georg Meisl, John S. H. Danial, Paul M. Matthews, Nurun N. Fancy, David Klenerman   +9 more
wiley   +1 more source

Continuous multistep synthesis of 2-(azidomethyl)oxazoles

Beilstein Journal of Organic Chemistry, 2018
An efficient three-step protocol was developed to produce 2-(azidomethyl)oxazoles from vinyl azides in a continuous-flow process. The general synthetic strategy involves a thermolysis of vinyl azides to generate azirines, which react with bromoacetyl ...
Thaís A. Rossa, Nícolas S. Suveges, Marcus M. Sá, David Cantillo, C. Oliver Kappe   +4 more
doaj   +1 more source

Targeting the KAT7/H3K14ac/RAC2 Axis Mediates OXPHOS to Promote Stemness Maintenance and Malignancy in Glioblastoma

Advanced Science, EarlyView.
SOX2 upregulates KAT7 in glioma stem cells, where KAT7 deposits H3K14 acetylation at the RAC2 promoter to activate RAC2 transcription. RAC2‐GTP subsequently promotes PAK1/2/3 phosphorylation, increasing tricarboxylic acid cycle flux and mitochondrial respiration to support glioblastoma malignancy.
Jilong Liu, Yanfei Sun, Yuehua Zhu, Guangjing Mu, Jiazheng Wang, Liangliang Wang, Feihu Zhao, Zhimin Zhao, Jian Wang, Ying He, Zheng Jiang, Xingang Li, Mingzhi Han, Bin Huang   +13 more
wiley   +1 more source

A Sustainable Synthetic Approach to Tacrine and Cholinesterase Inhibitors in Deep Eutectic Solvents under Aerobic Conditions

Molecules
An enhanced, sustainable, and efficient method for synthesizing tacrine, achieving a 98% yield, has been developed by replacing volatile organic compounds with more eco-friendly solvents such as deep eutectic solvent (DESs). The optimized protocol scales
Luciana Cicco, Filippo Maria Perna, Vito Capriati, Paola Vitale   +3 more
doaj   +1 more source

Interleukin‐1α Mediates Pancreatic Fibroblast Activation, Regulates Immune Cell Recruitment and Fibrosis in Acute and Chronic Pancreatitis

Advanced Science, EarlyView.
During pancreatitis, IL‐1α is released from necrotic acinar cells. In response to IL‐1α, pancreatic fibroblasts release chemokines and cytokines that regulate the recruitment of immune cells to the damaged organ. Furthermore, IL‐1α primes fibroblasts, resulting in increased tissue fibrosis during chronic pancreatitis.
Hala Mazloum, Shenja Buchholz, Hanna Schifter, Sabine Ameling, Leif Steil, Ben Lewin Becker, Elke Hammer, Georg Homuth, Uwe Völker, Barbara M. Bröker, Lukas Zierke, Frank Ulrich Weiss, Juliane Glaubitz, Matthias Sendler   +13 more
wiley   +1 more source

Enantioselective Synthesis Using Azides: Mechanism And Methods

, 2020
University of Minnesota Ph.D. dissertation. May 2020. Major: Chemistry. Advisor: Joseph Topczewski. 1 computer file (PDF); x, 176 pages.With the increasing demand of complex sp3-hybridized molecules and the importance of sustainability and ...
Ott, Amy
core  

Tf₂NH-Catalyzed Amide Synthesis from Vinyl Azides and Alcohols

, 2015
Triflimide (Tf2NH) specifically catalyzed reactions of alcohols and vinyl azides, enabling efficient construction of amides with C–C bond formation through nucleophilic attack of vinyl azides onto the putative carbocation intermediates derived from ...
Feng-Lian Zhang (1670470), Shunsuke Chiba (1670473), Zhu, Xu, Xu Zhu (424407), Zhang, Feng-Lian, Chiba, Shunsuke   +5 more
core   +1 more source

Transient Sleep Deprivation Induces Persistent Auditory Neuropathy via ROS‐Initiated Neuroinflammation and BK Channel Suppression

Advanced Science, EarlyView.
Sleep disturbance severity closely tracks hearing loss in a clinical cohort, yet the mechanistic link remains unclear. Acute sleep deprivation is shown to trigger transient cochlear oxidative stress that switches into a self‐sustaining neuroinflammatory state, suppressing BK channels and causing irreversible synaptopathy.
Dan Chen, Ying Ma, Lixuan Huang, Xin Chen, Fanliang Kong, Zhenzhou Qian, Mingyue Guan, Xinlin Wang, Yanyan Yang, Shasha Zhang, Peng Li, Renjie Chai   +11 more
wiley   +1 more source

Arrangement of Azidomethyl Group in Lupinine Azide: Structural and Spectroscopic Properties

Molecules
Quinolizidine derivatives are an important class of substances that are used in the pharmaceutical industry. In previous studies, the synthesis of these substances is carried out using lupinine azide (IUPAC: 1-(azidomethyl)octahydro-2H-quinolizine ...
Kymbat Kopbalina, Dmitrii Pankin, Mikhail Smirnov, Niyazbek Ibrayev, Dastan Turdybekov   +4 more
doaj   +1 more source

Redefining the Minimal Editable Unit of Supramolecular Synthons: A 1→2 Lattice‐Editing Strategy in Ternary Multicomponent Crystals

Advanced Science, EarlyView.
Inspired by skeletal editing, we propose a lattice‐editing strategy that extends the minimal editable unit in supramolecular crystals from individual components to local supramolecular structural units, enabling non‐stoichiometric one‐to‐many substitution while preserving the parent lattice architecture.
Zheng Lin, Honglei Xia, Min Li, Ruihui Wang, Ying Wang, Xiaoyu Feng, Mingjing Tang, Yuan Zhang, Qinghua Zhang   +8 more
wiley   +1 more source