Publications by authors named "Lihan Zhao"

Aryl sulfinamides are valuable intermediates and functional motifs in organic synthesis, with broad utility in pharmaceutical and agrochemical development. However, their broader application has been limited by underdeveloped synthetic methods, often requiring conventionally prefunctionalized aryl/alkenyl halides or organometallic reagents, protected sulfinylamine reagents, and harsh reaction conditions. Herein, we report a photo/copper-catalyzed sulfinamidation of arenes and alkenes, employing aryl and alkenyl sulfonium salts as radical linchpins.

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In neurodegenerative disorders, excessive R-loops affect DNA replication, transcription and genome stability. Olfaction impairment is an early indicator of these diseases. However, the function of R-loops in olfactory modulation is less well known.

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The dichloromethane extract of the roots of Tutcher (Phyllanthaceae) was found to show potential anticancer activity against HCT116 colorectal cancer cell. Our bioassay-guided phytochemical investigation of the roots of led to the identification of 14 compounds including seven lignans (-), three phenylbenzene derivatives (-), two flavanone (-), and two triterpenoids (-). Among them, 4'-demethyl-4-deoxypodophyllotoxin () is the first aryltetralin lignan compound identified from this plant species.

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Introduction: The optimal percutaneous coronary intervention (PCI) strategy for coronary left main (LM) bifurcation lesions remains controversial. This meta-analysis compared the medium and long-term follow-up clinical outcomes of single vs. systematic dual stenting strategies of LM bifurcation lesions.

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Purpose: The present study aimed to investigate the association of renin-angiotensin system inhibitors (RASi) with short- and long-term mortality in patients with aortic stenosis (AS).

Methods: A systematic search was performed in PubMed, Embase, and Cochrane library databases for relevant studies published before March 2022. Studies meeting the inclusion criteria were included to assess the effect of RASi on short-term (≤30 days) and long-term (≥1 year) mortality in patients with AS.

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A copper(II)-promoted denitrogenation/oxidation reaction for the preparation of primary α-ketoamides was developed using α-azido ketones as a substrate and TEMPO as an oxidant. α-Azido ketones were denitrogenated in situ to form an imino ketone intermediate, which underwent a radical addition process and radical migration to form α-ketoamides. It is worth noting that the imino ketone intermediate is the key to this reaction.

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Isodon amethystoides (Lamiaceae) is a popular plant in folk medicine in the southern provinces of China. Our phytochemical investigation of the twigs and leaves of this plant led to the discovery of five new diterpenoids with isopimarane and 3,4-seco isopimarane scaffolds [isoamethinols A-E (1-5)], along with the known compound 3,4-seco isopimara-4(18),7,15-triene-3-oic acid methylester (6). The chemical structures of these compounds, including the absolute configurations of the new diterpenoids, were determined by comprehensive spectroscopic analyses and single crystal X-ray diffraction measurements.

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The real-world treatment of atrial fibrillation (AF) often involves the prescription of new oral anticoagulants (NOACs) using dosing both lower and higher than recommended guidelines. Our study aimed to evaluate the efficacy and safety of non-recommended dosage of NOACs in AF patients. A systematic search was performed for relevant studies across multiple electronic databases (PubMed, Embase, Cochrane Library, Clinical Trials Registry) from inception to May 1, 2021.

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Ginger (Zingiber officinale) is one of the most widely consumed dietary supplements worldwide. Its anticancer potential has been demonstrated in various studies. However, ginger roots obtained from different geographical locations showed extensive variability in their activities, mainly due to differences in the levels of bioactive compounds.

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Objective: To discuss how IRF9 affects the fibroblast-like synoviocytes (FLS) in TNF-induced rheumatoid arthritis (RA) via the SIRT-1/NF-κB signaling pathway.

Methods: RA-FLS were isolated and divided into control, sh-IRF9, TNF, TNF + sh-Ctrl, TNF + sh-IRF9, TNF + sh-SIRT1, and TNF + sh-IRF9 + sh-SIRT1 groups. Biological features of FLS were evaluated by MTT, wound healing, and Transwell assays, respectively.

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Our previous studies showed that atractylenolide II (AT-II) has antimelanoma effects in B16 melanoma cells. In this study, we investigated the involvement of STAT3 signalling in the antimelanoma action of AT-II. Daily administration of AT-II (12.

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Polyhydroxybutyrate (PHB) is a bacterial polyester that has properties similar to some petrochemically produced plastics. Plant-based production has the potential to make this biorenewable plastic highly competitive with petrochemical-based plastics. We previously reported that transgenic sugarcane produced PHB at levels as high as 1.

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