Publications by authors named "Yangfeng Liu"

The control incorporation of metals in silica hollow spheres (SHSs) may bring new functions to silica mesoporous structures for applications including catalysis, sensing, molecular delivery, adsorption filtration, and storage. However, the strategies for incorporating metals, whether through pre-loading in the hollow interior or post-encapsulation in the mesoporous shell, still face challenges in achieving quantitative doping of various metals and preventing metal aggregation or channel blockage during usage. In this study, we explored the doping of different metals into silica hollow spheres based on the dissolution-regrowth process of silica.

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The management of severe neurologic infections due to multidrug-resistant (MDR) infection remains a challenge. Limited antibiotic treatment regimens make treatment of severe MDR infection more difficult. We describe a patient who developed severe meningitis and ventriculitis after craniotomy caused by MDR and was effectively treated with the administration of multichannel applications (intravenous, intrathecal and aerosol inhalation) of colistin sulfate.

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Background And Objective: Electroencephalography (EEG) and neuroimaging measurements have been highly encouraged to be applied in clinics of disorders of consciousness (DOC) to improve consciousness detection. We tested the relationships between neural complexity measured on EEG and residual consciousness levels in DOC patients.

Methods: Resting-state EEG was recorded from twenty-five patients with DOC.

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Two Gram-stain negative, moderately halophilic, exopolysaccharide-producing bacteria, designated strains SYSU ZJ2214 and SYSU XM8, were isolated from rearing water and larvae from shrimp hatcheries, respectively. Cells of the strains were aerobic, motile and short-rod-shaped. They grew at NaCl concentrations of 0.

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Spinal cord stimulation (SCS) has been suggested as a therapeutic technique for treating patients with disorder of consciousness (DOC). Although studies have reported its benefits for patients, the underlying pathophysiological mechanisms remain unclear. The aim of this study was to measure the effects of SCS on the EEG of patients in a minimally conscious state (MCS), which would allow us to explore the possible workings underpinning of the approach.

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Aim: To detect the mechanism by which colon tumor escapes the growth constraints imposed on normal cells by cell crowding and dense pericellular matrices.

Methods: An immunohistochemical study of integrin αvβ6 and matrix metalloproteinase-9 (MMP-9) was performed on tissue microarrays of 200 spots, including 100 cases of colon tumors.

Results: High immunoreactivity for αvβ6 (73.

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Though new antiepileptic drugs are emerging, approximately a third of epileptic patients still suffer from recurrent convulsions and cognitive dysfunction. Therefore, we tested whether berberine (Ber), a vegetable drug, has an anticonvulsant property and attenuates memory impairment in a pilocarpine (Pilo)-induced epilepsy model in rats. The rats were injected with 400 mg/kg Pilo to induce convulsions, and Ber 25, 50, and 100 mg/kg were administrated by the intragastric route once daily 7 days before Pilo injection until the experiment was over.

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A one-step synthesis of phloretin derivatives 2-11 from phloretin in good to excellent yields is reported. Their structures were characterized by 1H-NMR, 13C-NMR and MS, and the structures of 8 and 11 were determined by X-ray diffraction analysis. A mechanism for the formation of 9-11 is proposed.

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This study was aimed to explore the effect of realgar (As4S4) on growth inhibition and apoptosis induction of DLBCL cell line SU-DHL-4 and its mechanisms. The inhibitory effect of realgar on the cell growth were detected by MTT method. The morphological changes of SU-DHL-4 were observed by transmission electron microscopy (TEM).

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Accumulating evidence has shown that neuroinflammation plays a key role in epileptogenesis. However, the efficacy of anti-inflammatory agents for preventing epilepsy remains controversial. Fingolimod (FTY720), a sphingosine-1-phosphate (S1P) analog, has potent anti-inflammatory effects in multiple sclerosis (MS) patients and animal models.

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Ethnopharmacological Relevance: Ginseng, the root of Panax ginseng C. A. MEYER (Araliaceae), is reputedly known for its nootropic and anti-aging functions and has been widely used to treat various diseases and enhance health for thousands of years in Asia.

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Baicalin, a flavonoid compound purified from plant Scutellaria baicalensis Georgi, has been reported to possess a wide variety of pharmacological properties including anti-oxidative, anti-apoptotic and neuroprotective properties. Oxidative stress can dramatically alter neuronal function and has been linked to status epilepticus (SE). However, the neuroprotective effect of baicalin on epilepsy is unclear.

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Depressed patients with increased inflammatory cytokines in peripheral blood have been reported to be more likely to exhibit treatment resistance. However, it is unknown whether the inflammation influences the action of antidepressant drugs. Here, we investigated the influence of lipopolysaccharide (LPS) on the antidepressant action of fluoxetine in depressive rats induced by chronic unpredictable mild stress (CUMS).

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Clinical studies have reported that adjunctive acetylsalicylic acid (aspirin) therapy is beneficial for patients with treatment resistant depression (TRD). However, there still exist negative epidemiological data on the link between aspirin and depression. Therefore, this study aimed to further investigate whether aspirin can be used as an augmentation agent in fluoxetine treatment resistant depressive rats induced by chronic unpredictable mild stress (CUMS).

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