The one-pot/two-step combination of enzymes and polar organometallic chemistry in aqueous media is for the first time presented as a proof-of-concept study. The unprecedented combination of the catalytic oxidation of secondary alcohols by the system laccase/TEMPO with the ultrafast addition (3 s reaction time) of polar organometallic reagents (RLi/RMgX) to the formed ketones, run under air at room temperature, allows the straightforward and chemoselective synthesis of tertiary alcohols with broad substrate scope and excellent conversions (up to 96%).
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http://dx.doi.org/10.1039/d1cc06460f | DOI Listing |
Eur J Pediatr Surg
January 2025
Department of Pediatric Surgery, Emma Childrens' Hospital UMC, Amsterdam, Netherlands.
Aim of the study To assess the incidence and types of complications and patient-reported outcomes in pediatric patients with therapy-resistant constipation or fecal incontinence (FI) without constipation who underwent Chait TrapdoorTM cecostomy (CTC). The findings contribute to the discussion on selecting the optimal antegrade continence (ACE) procedure for this population. Materials and Methods A retrospective review was conducted on all pediatric patients with therapy-resistant constipation or FI without constipation who underwent a CTC procedure at our tertiary referral center between 2009 and 2023.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Thai Red Cross Emerging Infectious Diseases Health Science Centre, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Background: Plasma tau phosphorylated at Thr217 (p-tau217) has demonstrated excellent performance in identifying individuals with Alzheimer's disease (AD) in both research and memory clinic settings. Nonetheless, implementing plasma p-tau217 into clinical practice remains a challenge requiring careful clinical judgement and conservative interpretation near the cutpoint. The present study proposes a strategy that utilizes Bayes theorem in considering the clinical context, individualized (ie.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore, Singapore, Singapore.
Background: DNA methylation is an epigenetic change characterized by the addition of methyl groups to DNA, typically in the cytosine- phosphate-guanine (CpG) nucleotide base pairings. Given that DNA methylation alterations are shown to be associated with Alzheimer's Disease (AD) pathology in autopsied brains, blood-based DNA methylation changes are increasingly being studied as a potential peripheral biomarker for AD. However, the role of blood-based DNA methylation changes as a marker of cognitive impairment in AD remains unclear.
View Article and Find Full Text PDFTheranostics
January 2025
Department of Nephrology, China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Beijing, 100029, China.
The tertiary structure of normal podocytes prevents protein from leaking into the urine. However, observing the complexity of podocytes is challenging because of the scale differences in their three-dimensional structure and the close proximity between neighboring cells in space. In this study, we explored podocyte-secreted angiopoietin-like 4 (ANGPTL4) as a potential morphological marker via super-resolution microscopy (SRM).
View Article and Find Full Text PDFOrg Lett
January 2025
School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
We describe an efficient acyl esterification method for alkenes utilizing acyloxime esters as bifunctional reagents featuring radical acylation and congested C-O bond formation. This approach is characterized by mild photoredox conditions, high step and atom economy, a broad substrate scope, and excellent regioselectivity. A variety of valuable α-acyl hindered alcohol esters, including those obtained via gram-scale synthesis and late-stage functionalization of pharmaceutical molecules, were presented, demonstrating its synthetic potential and practicability.
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