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Electrochemical Self-Sacrificial Label Conversion Coupled with DNA Framework Nanomachine Mediated Serotonin Sensing with Highly Minimized Background Noise.
Anal Chem
January 2025
School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
Conventional solid/liquid electrochemical interfaces typically encounter challenges with impeded mass transport for poor electrochemical quantification due to the intricate pathways of reactants from the bulk solution. To address this issue, this work reports an innovative approach integrating a target-activated DNA framework nanomachine with electrochemically driven metal-organic framework (MOF) conversion for self-sacrificial biosensing. The presence of the target biomarker serotonin initiates the DNA framework nanomachine by an entropy-driven circuit to form a cross-linked nanostructure and subsequently release the Fe-MOF probe.
View Article and Find Full Text PDFSmall intestine neuroendocrine tumours (SI-NETs) are often diagnosed late with a UK median of 3 years and high misdiagnosis rates. Previous studies, largely based on patient surveys, offer little data on improving diagnosis. In 2017, the South Wales NET service underwent a nationally commissioned, systematic transformation, aiming to improve diagnosis through the development of a gastroenterology and surgical referral network, and education of these specialities.
View Article and Find Full Text PDFAGA Clinical Practice Update on Screening and Surveillance in Individuals at Increased Risk for Gastric Cancer in the United States: Expert Review.
Gastroenterology
December 2024
Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Palo Alto, California.
Description: Gastric cancer (GC) is a leading cause of preventable cancer and mortality in certain US populations. The most impactful way to reduce GC mortality is via primary prevention, namely Helicobacter pylori eradication, and secondary prevention, namely endoscopic screening and surveillance of precancerous conditions, such as gastric intestinal metaplasia (GIM). An emerging body of evidence supports the possible impact of these strategies on GC incidence and mortality in identifiable high-risk populations in the United States.
View Article and Find Full Text PDFThe Value of Repeat 5-HIAA Measurements as a Predictor of Carcinoid Heart Disease: A Prospective 5-Year Follow-Up Study in Patients with Small Intestinal Neuroendocrine Tumors.
Cancers (Basel)
November 2024
Endocrinology, Abdominal Center, Helsinki University Hospital and University of Helsinki, ENDO-ERN (European Reference Network on Rare Endocrine Conditions), 00280 Helsinki, Finland.
Small intestinal neuroendocrine tumors (SI-NETs) are characterized by carcinoid syndrome and carcinoid heart disease (CHD). The aim of the present study was to identify early risk markers for carcinoid heart disease and survival in a prospective median-term follow-up setting. We measured 5-HIAA and cumulative 5-HIAA exposure (Cum-5-HIAA) based on repeated measurements, proBNP, vascular function, hepatic tumor load, and transthoracic echocardiography (TTE) at baseline and during the median 5-year follow-up.
View Article and Find Full Text PDFMultinuclear Antimony-Bismuth-Lanthanide Cluster-Connected Polyoxometalate for the Detection of 5-Hydroxyindoleacetic Acid via Luminescence.
Inorg Chem
December 2024
Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China.
The judicious selection and combination of multicomponents provide great potential for the further exploration of new polyoxometalate (POM) materials. Here, a delicate control on tungstate, Sb and Bi sources, Eu ions, and organic molecules led to the discovery of a novel multimetal cluster-embedded POM [HN(CH)]NaH{[Eu(HO)SbBiWO](SbWO)(SbWO)}·78HO (). The polyoxoanion of was constructed from four in situ-formed [SbWO] and [SbWO] building blocks connected by two hexa-metallic [Eu(HO)SbBiWO] clusters, to be a rare member of Sb- and Bi-coexisting POM.
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