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Regioselective [3 + 2] Annulation of β,γ-Alkynyl-α-ketimino Esters with 1,3-Dicarbonyls: The Synthesis of Highly Functionalized Dihydrofurans.
J Org Chem
January 2025
Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Laboratory of Optic-electric Chemo/Biosensing and Molecular Recognition, Education Department of Guangxi Zhuang Autonomous Region, Guangxi Minzu University, Nanning 530006, China.
A regioselective [3 + 2] annulation of β,γ-alkynyl-α-ketimino esters with 1,3-dicarbonyls is disclosed. A series of -selective dihydrofurans bearing an exocyclic double bond and a quaternary carbon center are accessed without the usage of base. Control and deuterium-labeling experiments have been investigated to probe into the reaction mechanism.
View Article and Find Full Text PDFInvestigating the miRNA-mRNA interactome of human trabecular meshwork cells treated with TGF-β1 provides insights into the pathogenesis of pseudoexfoliation glaucoma.
PLoS One
January 2025
Biomedical Sciences Research Institute, Centre for Genomic Medicine, Ulster University, Coleraine, Northern Ireland, United Kingdom.
Pseudoexfoliation glaucoma is a severe form of secondary open angle glaucoma and is associated with activation of the TGF-β pathway by TGF-β1. MicroRNAs (miRNAs) are small non-coding RNA species that are involved in regulation of mRNA expression and translation. To investigate what glaucomatous changes occur in the trabecular meshwork and how these changes may be regulated by miRNAs, we performed a bioinformatics analysis resulting in a miRNA-mRNA interactome.
View Article and Find Full Text PDFGenetic influence on choroidal vascularity index.
PLoS One
January 2025
Department of Ophthalmology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Purpose: To investigate the heritability of genetic influence on macular choroidal vascularity index (CVI).
Methods: Total choroidal area (TCA), luminal area (LA), and CVI was measured using horizontal scan of spectral-domain optical coherence tomography with enhanced depth imaging in the 373 healthy twin participants. Characteristics of the participants were investigated, including age, sex, axial length, hypertension, diabetes, drinking habits, and smoking status.
Oxygen Activation Biocatalytic Precipitation Strategy Based on a Bimetallic Single-Atom Catalyst for Photoelectrochemical Biosensing.
Anal Chem
January 2025
Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
Article Synopsis
- The traditional biocatalytic precipitation (BCP) method has limitations due to HO's tendency to self-decompose, affecting its effectiveness in quantitative analysis.
- Researchers discovered that a bimetallic single-atom catalyst (Co/Zn-N-C SAC) can activate dissolved oxygen to create reactive oxygen species, leading to improved detection methods.
- The development of a new oxygen-activated photoelectrochemical (PEC) biosensor for chloramphenicol (CAP) detection demonstrates enhanced stability and accuracy by using Co/Zn-N-C SAC and cesium platinum bromide nanocrystals (CsPtBr NCs) without needing external reactants.
Long-Term Intracranial Progression-Free Survival in Lung Cancer Brain Metastases Extended Beyond 50 Months with Gubenxiaoyi Formula (GBXY): A Groundbreaking Case Study.
Integr Cancer Ther
January 2025
Department of Oncology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Background: The prevalence of brain metastases (BM) in lung cancer patients is notably high and is associated with poor prognoses. The efficacy of standard treatment regimens in improving intracranial progression-free survival (IPFS) for lung cancer BM is markedly limited. While traditional Chinese medicine (TCM) has been effective in enhancing the quality of life and prognosis of lung cancer patients, its efficacy in treating BM remains unreported.
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