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Polarity reversal, or "umpolung", is a widely acknowledged strategy to allow organic functional groups amenable to react in alternative ways to the usual preference set by their electronic features. In this article, we demonstrate that cyclohexyne umpolung, realized through complexation to zirconocene, makes the small strained cycloalkyne amenable to C-F bond functionalisation. Such strong bond activation chemistry is unprecedented in "free" aryne and strained alkyne chemistry.
View Article and Find Full Text PDFExpression and role of CTHRC1 in inflammatory bowel disease in children.
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April 2025
Child Rehabilitation Department, Hubei NO.3 People's Hospital of Jianghan University, No. 26 Zhongshan Avenue, Qiaokou District, Wuhan, 430033 China.
Unlabelled: Inflammatory bowel disease (IBD) is a chronic, progressive, immune-mediated, gastrointestinal inflammatory disease with increasing occurrences in children. Collagen triple helix repeat containing 1 (CTHRC1), a migration-promoting protein, acts as a tumor-promoting factor in malignant tumors. However, functions and mechanisms of CTHRC1 in children with IBD remain unclear.
View Article and Find Full Text PDFMETTL3/miR-192-5p/SCD1 Axis Regulates Lipid Metabolism to Affect T Cell Differentiation in Asthma.
Mediators Inflamm
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Department of Pediatric Pulmonology, Children's Hospital of Soochow University, No 303, Jingde Road, Suzhou 215003, China.
This study aimed to explore the mechanisms underlying T-cell differentiation in asthma. Flow cytometry was performed to detect Th cells. LC-MS/MS was performed to assess lipid metabolism.
View Article and Find Full Text PDFBone marrow mesenchymal stem cells promote uterine healing by activating the PI3K/AKT pathway and modulating inflammation in rat models.
World J Stem Cells
January 2025
Women and Children's Hospital of Chongqing Medical University, Chongqing 401147, China.
Background: Uterine injury can cause uterine scarring, leading to a series of complications that threaten women's health. Uterine healing is a complex process, and there are currently no effective treatments. Although our previous studies have shown that bone marrow mesenchymal stem cells (BMSCs) promote uterine damage repair, the underlying mechanisms remain unclear.
View Article and Find Full Text PDFTemperature-Dependent Water Oxidation Kinetics: Implications and Insights.
ACS Cent Sci
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Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States.
As a vital process for solar fuel synthesis, water oxidation remains a challenging reaction to perform using durable and cost-effective systems. Despite decades of intense research, our understanding of the detailed processes involved is still limited, particularly under photochemical conditions. Recent research has shown that the overall kinetics of water oxidation by a molecular dyad depends on the coordination between photocharge generation and the subsequent chemical steps.
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