Results 71 to 80 of about 53,976 (309)

Shortage of Cellular ATP as a Cause of Diseases and Strategies to Enhance ATP

Frontiers in Pharmacology, 2019
Germline mutations in cellular-energy associated genes have been shown to lead to various monogenic disorders. Notably, mitochondrial disorders often impact skeletal muscle, brain, liver, heart, and kidneys, which are the body’s top energy-consuming ...
Todd A. Johnson, H. A. Jinnah, Naoyuki Kamatani   +2 more
doaj   +1 more source

Intestinal Clock Promotes Cognitive Memory Through Adenosine Signaling

Advanced Science, EarlyView.
The intestinal clock controls the expression of an adenosine enzyme that modulates systemic adenosine level and A1R signaling in the hippocampus, and in turn, cognitive function involving long‐term potentiation and BDNF‐dependent synaptic changes.
Min Chen, Fugui Zhang, Yifei Xiao, Xuejun Jiang, Zhiqian Yan, Jinyi Wang, Xiting Lv, Jialu Cui, Linna Ha, Hui Chen, Yongkang Dang, Zifei Qin, Jing Yang, Baojian Wu   +13 more
wiley   +1 more source

Biocatalytic Alkylation of Ambident Nucleophiles Enables Selective N‐Functionalization of Heterocycles and Late‐Stage Modifications

Angewandte Chemie, EarlyView.
N‐alkylated heteroarenes are key structural motifs in bioactive compounds, but their regioselective synthesis via coupling of readily available azoles with haloalkanes remains very challenging. Here, we present a mild biocatalytic approach that proceeds on gram‐scale, is highly chemo‐ and regioselective, offering rapid access to valuable N‐alkylated ...
Felipe Ospina, Kai H. Schülke, Marius Schnutenhaus, Alina Klein, Om Desai, Shubhanshu Jain, Christine Krofta, Lukas Stratmann, Jianing Yang, Harald Gröger, Stephan C. Hammer   +10 more
wiley   +2 more sources

Polyoxotungstates in Molecular Boxes of Purine Bases

Crystals, 2014
Three new compounds, (GuaH)4[W10O32](H2O)4 (1), (ThbH)3(H3O)[(W10O32](H2O)7.5 (2) and (ThbH)2[W6O19](H2O)2 (3) (GuaH = guaninium, thbH = theobrominium) were synthesized in acidified acetonitrile solutions.
Vladislav Kulikov, Gerd Meyer
doaj   +1 more source

Anti‐Icing Organogel Enables Quasi‐Homogeneous Supercooling Preservation of Mouse Hearts

Advanced Science, EarlyView.
An organogel interface with a large energy barrier for ice nucleation is proposed to enable a quasi‐homogeneous supercooling preservation for organs. This method does not rely on cryoprotectant agents or machine perfusion and can double the ex vivo storage time of mouse hearts.
Junhao Li, Wei Wang, Chenghao Li, Lintao Kuang, Zhi Huang, Xing Chen, Zhenghao Guo, Kang Liu, Jinping Liu   +8 more
wiley   +1 more source

Conditional Stabilization of the Hypoxia‐Inducible Factor HIF1α— Photoswitchable Stapled Peptides Prevent Elongin BC–Mediated Degradation

Angewandte Chemie, EarlyView.
Visible‐light photoswitchable peptides enable the stabilization of the hydroxylated hypoxia transcription factor 1α (HIF1α—OH) by targeting the pVHL‐EloBC interaction. Significant differences in conformation, binding, and transcription of HIF‐targeted genes between the photostationary states (PSS) were demonstrated.
Van Tuan Trinh, Sabrina Fischer, Lei Zhang, Heiko Geisler, Belen Pardo, Robert Liefke, Frank Abendroth, Olalla Vázquez   +7 more
wiley   +2 more sources

Phenotypical and Genotypical Expansion of Autosomal‐Dominant KDM1A‐Related Neurodevelopmental Disorder Spectrum: A Case Report

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT KDM1A‐related neurodevelopmental disorder (CPRF, OMIM #616728) is characterized by cleft palate, global developmental delay, and distinct facial gestalt, but phenotypic knowledge of this ultra‐rare autosomal dominant disorder is limited. Here, we report on a 13‐year‐old boy with a novel heterozygous, likely pathogenic germline missense variant
Sebastian Burkart, Melanie Spanjaard, Lilian Kaufmann, Katrin Hinderhofer, Christian P. Schaaf, Markus Ries, Maja Hempel   +6 more
wiley   +1 more source

Synthesis of N-7-Substituted Purines from Imidazole Precursors

Molecules, 1999
Synthesis of purines and purine mono-1-oxides from the respective 5-substituted 4-nitroimidazole derivatives is described. The commercially available 4-nitroimidazole, in a few simple steps (including Vicarious Nucleophilic Substitution of Hydrogen), was
Stanislaw Ostrowski
doaj   +1 more source

A Transcriptome‐Wide Mendelian Randomization Study in Isolated Human Immune Cells Highlights Risk Genes Involved in Viral Infections and Potential Drug Repurposing Opportunities for Schizophrenia

American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Schizophrenia is a neurodevelopmental psychiatric disorder characterized by symptoms of psychosis, thought disorder, and flattened affect. Immune mechanisms are associated with schizophrenia, though the precise nature of this relationship (causal, correlated, consequential) and the mechanisms involved are not fully understood.
David Stacey, Liam Gaziano, Preethi Eldi, Catherine Toben, Beben Benyamin, S. Hong Lee, Elina Hyppönen   +6 more
wiley   +1 more source

Modification of Purine and Pyrimidine Nucleosides by Direct C-H Bond Activation

Molecules, 2015
Transition metal-catalyzed modifications of the activated heterocyclic bases of nucleosides as well as DNA or RNA fragments employing traditional cross-coupling methods have been well-established in nucleic acid chemistry.
Yong Liang, Stanislaw F. Wnuk
doaj   +1 more source