Publications by authors named "Guan-Hua Yu"

The level of HClO/ClO in mitochondria is essential to keep the normal function of mitochondria. Therefore, it is meaningful to accurately and quickly monitor ClO in mitochondria. In this work, a new triphenylamine-based fluorescence probe PDTPA was designed and synthesized, in which pyridinium salt and dicyano-vinyl group were introduced as mitochondria targeting site and reaction site for ClO.

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Article Synopsis
  • Peroxynitrite (ONOO) is common in living organisms and plays a role in various health issues, making it important to create effective detection tools for it.* -
  • A new fluorescent probe called B-Ch was developed using a technique called intramolecular charge transfer (ICT), which enhances its ability to detect ONOO effectively by changing a chemical group.* -
  • This probe displays clear color and fluorescence changes upon reacting with ONOO, highlighting its advantages, such as visual detection, high selectivity, low sensitivity threshold (22.4 nM), and suitability for cellular imaging.*
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There is an urgent need to develop highly sensitive and selective fluorescence probes for ONOO in mitochondria. Herein, we reported a ratiometric fluorescent probe COUS with coumarin-cyanine hybrid as fluorophore and C = C bonds as reaction sites of ONOO. The probe COUS was sensitive and selective to ONOO, and had a large fluorescence emission shift (239 nm) as well as a low detection limit (41.

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Background: Many biomarkers have predictive value for overall survival (OS) and disease-free survival (DFS) in tumor patients. However, the role of indirect bilirubin (IBIL) in local advanced rectal cancer (LARC) patients treated with neoadjuvant chemoradiotherapy (nCRT) has not been studied.

Aim: To explore the predictive value of IBIL before nCRT (pre-IBIL) for the OS and DFS of LARC patients treated with nCRT.

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Compared with raw rectorite microplatelets (RMs), rectorite nanosheets (RNs) have considerably greater application prospects in the preparation of advanced composite materials because of their larger aspect ratio, higher surface reactivity, and intrinsically superior mechanical and physical properties. However, the difficulty in the efficient preparation of RNs significantly limits their large-scale applications. Here, a scalable poly(vinylpyrrolidone)-assisted stirring approach is developed to prepare ultrathin RNs from the abundant natural RMs.

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Several epidemiological studies have identified diabetes as a risk factor for colorectal cancer (CRC). The potential pathophysiological mechanisms of this association include hyperinsulinemia, insulin-like growth factor (IGF) axis, hyperglycemia, inflammation induced by adipose tissue dysfunction, gastrointestinal motility disorder, and impaired immunological surveillance. Several studies have shown that underlying diabetes adversely affects the prognosis of patients with CRC.

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