Publications by authors named "Li Fei Wang"

Minimally invasive surgery on treatment of early-stage cervical cancer is debatable. Traditional approaches of colpotomy are considered responsible for an inferior oncological outcome. Evidence on whether protective colpotomy could optimize minimally invasive technique and improve prognoses of women with early-stage cervical cancer remains limited.

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Background: Tuberculous uveitis caused by tuberculosis infection factors is common, but tuberculous uveitis caused by found in the intraocular fluid is rare. This report describes the use of intraocular fluid in the diagnosis of tuberculous uveitis in a patient and reviews the relevant literature.

Case Summary: A 24-year-old woman who was 31-wk pregnant visited Hebei Chest Hospital due to intermittent chest pain, fever, and decreased vision for 3 mo.

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Background: Clinically, the pulse oxygen saturation of patients with chronic heart failure does not decrease significantly, and the clinical manifestations of labor-related dyspnea are not typical. As such, it is difficult to make a rapid diagnosis.

Objective: To investigate changes in pulse oxygen saturation in patients with chronic heart failure and examine the relationship between B-type natriuretic peptide (BNP) and normal pulse oxygen saturation.

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Group climate is an important factor in group counseling and psychotherapy process and outcome research. The current investigation examined group climate changes (from early to late sessions) at the within-group (i.e.

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Background: Lipemia retinalis (LR) is a rare disease related to hypertriglyceridemia. However, the symptoms of hypertriglyceridemia are insidious and difficult to detect without blood tests. The fundus is the only site where blood vessels can be observed directly.

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Cerebellar Purkinje cells (PCs) exhibit two types of discharge activities: simple spike (SS) and complex spike (CS). Previous studies found that noradrenaline (NA) can inhibit CS and bidirectionally regulate SS, but the enhancement of NA on SS is overwhelmed by the strong inhibition of excitatory molecular layer interneurons. However, the mechanism underlying the effect of NA on SS discharge frequency is not clear.

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Theoretically, group leaders can play a significant role in contributing to the effectiveness of group counseling intervention. However, very few studies have examined the group leader's effects on the client-rated group counseling outcomes. We hypothesized that responsive group leaders who were caring, understanding, and respectful could serve as safe havens and secure bases to facilitate their group members' social and emotional cultivation.

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Objective: We wanted to investigate the radial peripapillary capillary (RPC) network in patients with Bietti crystalline dystrophy (BCD).

Methods: We compared RPC densities in the disk and different peripapillary regions, obtained using optical coherence tomography angiography in 22 patients with BCD (37 eyes) and 22 healthy subjects (37 eyes). The BCD group was then divided into Stage 2 and Stage 3 subgroups based on Yuzawa staging, comparing the RPC densities of the two.

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The market size of varied carbonated teas and bottled ready-to-drink tea products in Taiwan has surpassed that of traditional Taiwan tea with hot infusion. The consumption behavior of Taiwanese consumers for new and varied types of cold infusion tea products has also differed from that of traditional hot infusion ones. More kinds of Taiwan tea with different fermentation levels are gradually being used as raw materials for various cold infusion tea products.

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Research has provided empirical support for the effectiveness of group psychotherapy. However, we have little understanding of mechanisms that account for the effectiveness. Thus, there is a need for complex theory-driven hypotheses and analytical models to understand the complexities of change in group counseling.

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Three coordination polymers (CPs) were synthesized by using CdII, fluorescent 9,10-di(4-pyridyl)anthracene (dpa), and cyclohexane-1,4-dicarboxylic acid (H2cda), and they are [Cd2(dpa)2(cda)Cl2]n (1), [Cd(dpa)2(cda)]n (2) and [Cd(dpa)(cda)(H2O)]n (3). Both 1 and 2 are fluorescent and contain nonporous layers. 3 is an isomer of 2 and contains a porous diamondoid network.

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Three coordination polymers based on quaternary-ammonium-modified isophthalic acid, namely, catena-poly[[[aqua-μ-bromido-di-μ-hydroxido-methanoldinitratotetracopper(II)]-bis{μ-5-[2-(tripropylazaniumyl)ethoxy]benzene-1,3-dicarboxylato}] nitrate], {[CuBr(CHNO)(NO)(OH)(CHO)(HO)]NO}, 1, poly[μ-bromido-μ-bromido-bromido-μ-hydroxido-{μ-5-[2-(tripropylazaniumyl)ethoxy]benzene-1,3-dicarboxylato}tricopper(II)], [CuBr(CHNO)(OH)], 2, and poly[bromido{μ-5-[2-(tripropylazaniumyl)ethoxy]benzene-1,3-dicarboxylato}zinc(II)], [ZnBr(CHNO)], 3, were obtained by solvothermal reactions. Coordination polymer (CP) 1 contains tetranuclear Cu units, in which the four Cu atoms are linked by two μ-OH groups into a Cu(OH) cluster, which are in turn linked by 5-[2-(tripropylazaniumyl)ethoxy]benzene-1,3-dicarboxylate (cpa) ligands into a chain structure. CP 2 also contains a tetranuclear Cu(OH) cluster and these are linked with CuBr units into chains.

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The aim of this study was to establish reference values for middle-aged subjects and to investigate the age and gender dependence of liver diffusion MRI parameters. The IVIM type of liver diffusion scan was based on a single-shot spin-echo-type echo-planar sequence using a 1.5 T magnet with 16 b-values.

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Protein phosphorylation is a crucial post-translational modification that plays an important role in the regulation of cellular signaling processes. Site-specific quantitation of phosphorylation levels can help decipher the physiological functions of phosphorylation modifications under diverse physiological statuses. However, quantitative analysis of protein phosphorylation degrees is still a challenging task due to its dynamic nature and the lack of an internal standard simultaneously available for the samples differently prepared for various phosphorylation extents.

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Norepinephrine (NA) is an important neurotransmitter of the cerebellum that regulates synaptic transmission, motor regulation and motor learning under certain conditions via adrenergic receptors (ARs). We previously found that NA depressed cerebellar climbing fiber-Purkinje cell (CF-PC) synaptic transmission via α2-ARs in vivo in mice. We here investigated the mechanisms of NA inhibited CF-PC synaptic transmission in acute cerebellar slices using the whole-cell recording technique and pharmacological methods.

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Liver vessel density can be evaluated by an imaging biomarker diffusion-derived vessel density (DDVD): DDVD/area(b0b2) = Sb0/ROIarea0 - Sb2/ROIarea2, where Sb0 and Sb2 refer to the liver signal when is 0 or 2 (s/mm); ROIarea0 and ROIarea2 refer to the region of interest (ROI) on = 0 or 2 images; and Sb2 may be replaced by Sb15 ( = 15). This concept was validated in this study. Liver diffusion images were acquired at 1.

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Metal-organic frameworks (MOFs) or porous coordination polymers (PCPs) with tunable pore sizes, shapes and functionalities have excellent prospects in many applications, such as carbon capture. Molecular sieving can usually enable very high CO adsorption selectivity but has rarely been achieved, because it is difficult to precisely control the pore size in the range of 3-4 Å. We report here three MOF isomers built from Cd, terephthalic acid and 3,6-di(pyridin-4-yl)-1,2,4,5-tetrazine with the same stoichiometric ratio, among which 1 and 2 are framework-catenation isomers and 2 and 3 are framework-topological isomers.

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Background: Iatrogenic biliary injury (IBI) following laparoscopic cholecystectomy (LC) is the most serious iatrogenic complications. Little is known whether LC-IBI would lead to surgeon's severe mental distress (SMD).

Methods: A cross-sectional survey in the form of electronic questionnaire was conducted among Chinese general surgeons who have caused LC-IBI.

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Article Synopsis
  • A 63-year-old male with pneumonia was confirmed to have COVID-19 and exhibited symptoms of acute myocarditis, including elevated troponin levels and reduced heart function.
  • The patient developed severe cardiac issues but responded to antiviral treatment, improving some heart function metrics before deteriorating due to a secondary infection.
  • This case is notable as it is the first documented instance of fulminant myocarditis linked to COVID-19, highlighting the need for further research on the virus's impact on heart health.
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Objective: To study the clinical features and chest CT findings of coronavirus disease 2019 (COVID-19) in infants and young children.

Methods: A retrospective analysis was performed for the clinical data and chest CT images of 9 children, aged 0 to 3 years, who were diagnosed with COVID-19 by nucleic acid detection between January 20 and February 10, 2020.

Results: All 9 children had an epidemiological history, and family clustering was observed for all infected children.

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Tetrazole-based molecules have numerous bridging coordination modes which afford great synthetic possibilities for the preparation of porous metal-tetrazolate architectures for many applications, such as carbon capture. We reported here three tetrazole-based MOFs: 1, {[Cu(ttz)Cl(HO)]·11Cl} (Httz = N,N,N-tris(4-(1H-tetrazol-5-yl)phenyl)-1,3,5-triazine-2,4,6-triamine), contains highly positively charged Cu clusters and the largest mesopores (32 Å) among the reported MOFs based on a tri-topic tetrazole ligand. 2 and 3 are two MOF isomers built by using Cu and 2-(1H-tetrazol-5-yl)pyrimidine.

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For hundreds of years, Taiwan has been famous for its various specialty teas. The sensory features of these teas have been well specialized and standardized through sensory evaluations performed by tea experts in yearly competitions throughout history. However, the question arises of whether young Taiwanese consumers, whose dietary behaviors have become Westernized, agree with the conventional sensory standards and association/postprandial concepts in the traditional tea market of Taiwan.

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Aim: To explore the effect of Obtusifolin on retinal pigment epithelial cell growth under hypoxia.

Methods: chemical hypoxia model of ARPE-19 cells was established using cobalt chloride (CoCl). Cell viability was tested by cell counting kit-8 (CCK-8) assay.

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Antihypertensive peptides were screened from thermolysin hydrolysate of seeds (Jue Ming Zi) using two independent bioassay-guided fractionations, reversed-phase high-performance liquid chromatography (RP-HPLC), and strong cation-exchange (SCX) liquid chromatography coupled with angiotensin I-converting enzyme (ACE) inhibitory assay. The identical peptide in the most active RP-HPLC and SCX fractions was simultaneously de novo sequenced as FHAPWK with high-resolution mass spectrometry. FHAPWK (IC = 16.

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Objective: The objective of this study was to evaluate the change of the ratio of monocytes to lymphocytes in patients with active tuberculosis, such as to provide reference for clinical diagnosis and treatment.

Methods: All data were collected from the clinical database of The Fifth People's Hospital of Taiyuan, China. A total of 151 patients who had newly diagnosed active tuberculosis with tuberculosis therapy in hospital and 129 healthy controls were selected.

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