Publications by authors named "Jieran Shi"

Background: Corneal neovascularization (CNV) is a common eye disease that leads to blindness. New treatment strategies are urgently needed due to the limitations of current treatment methods.

Methods: We report the synthesis of peptide Nap-FFEEPCAIWF ( ) via chemical conjugation of Nap-FFEE ( ) to antiangiogenic peptide PCAIWF .

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Although cycling has numerous health benefits, the increased breathing volume and lack of protection from exposure to the environment while cycling poses health risks that cannot be disregarded. Previous studies evaluating the exposure of cyclists to air pollution have typically focused on assessing exposure to a single pollutant or exposure concentrations on specific urban routes, and have not performed a comprehensive assessment considering the distribution of cyclists. The present study used bicycle-sharing big data to conduct a more comprehensive and refined real-time population weighted exposure risk assessment of pileless bike sharing riders in Beijing.

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Corneal neovascularization (CNV) is a pathological condition that can disrupt corneal transparency, thus harming visual acuity. However, there is no effective drug to treat CNV. Sunitinib (STB), a small-molecule multiple receptor tyrosine kinase inhibitor, was shown to have an effect on CNV.

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Isoliquiritigenin (ISL), as a natural flavonoid, has been proven to have therapeutic potential for corneal neovascularization (CNV) treatment; however, its therapeutic use is restricted due to its poor aqueous solubility and limited bioavailability. To overcome these limitations, a novel ISL-loaded nanoemulsion (ISL-NE) was designed for inhibiting CNV in this study. ISL-NE formulation was composed of propylene glycol dicaprylate (PGD), Cremophor® EL (EL35), polyethylene glycol 400 (PEG 400) and adding water with sodium hyaluronate, its particle size was 34.

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Sorafenib (SRB), a multikinase inhibitor, is effective in reducing experimental corneal neovascularization (CNV) after oral administration; however, its therapeutic use in ocular surface disorders is restricted due to poor solubility and limited bioavailability. This study aimed to develop and optimize SRB-loaded nanostructured lipid carriers (SRB-NLCs) for topical ocular delivery by a central composite design response surface methodology (CCD-RSM). It was spherical and uniform in morphology with an average particle size of 111.

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Glaucoma, characterized with progressive degeneration of retinal ganglion cells (RGCs), is the second frequently leading cause of sight loss in the word after cataract. Baicalin plays a protective role in age-related macular degeneration, retinopathy of prematurity, branch retinal vein occlusion, and ischemia-induced neurodegeneration in the retina. The present study aimed to investigate the role of baicalin in glaucoma.

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In the field of environmental health, the impact of air pollution on people's cognitive function is receiving increasing attention. Various air pollution exposures and different exposure periods result in different degrees of damage to cognition. This paper first used CFPS cognitive tests to evaluate the cognitive function of 15,163 adults in 25 provinces of China.

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Background: Colorectal surgery is associated with high rates of surgical site infection (SSI). We investigated SSI in radical resection of colon or rectal carcinoma and its epidemiological distribution in 26 hospitals in China.

Methods: We conducted prospective surveillance of patients who underwent radical resection of colon or rectal carcinoma in 26 selected hospitals from January 2015 to June 2016.

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Objectives: Several mutations of the glucocorticoid receptor (GR) gene cause malfunction of the protein, resulting in steroid resistance. In diseases other than asthma, the GR variants I559N, D641V, and V729I have been linked to steroid resistance. The aim of this study was to evaluate the link of these GR variants in steroid-resistant (SR) asthma in the Chinese Han population.

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Article Synopsis
  • The study investigates the effects of recombinant bacille Calmette-Guerin (rBCG) that expresses Der p2 on asthma, particularly its influence on Th17 cell differentiation and airway inflammation.
  • Results showed that transferring dendritic cells infected with Der p2 rBCG led to reduced airway inflammation and mucin production, effectively inhibiting excessive Th17 responses compared to traditional BCG.
  • The research highlights the importance of dendritic cells in rBCG's immunoregulatory functions and provides insight into the cellular mechanisms behind its potential as an asthma treatment.
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Emerging evidence suggests that diffusion-weighted magnetic resonance imaging (DW MRI) could be useful for tumor detection with N and M staging of lung cancer in place of fluorine 18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT). DW MRI at 3.0 T and FDG PET/CT were performed before therapy in 113 patients with pulmonary nodules.

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Article Synopsis
  • Researchers studied a recombinant bacille Calmette-Guérin (rBCG) vaccine expressing the Der p 2 allergen, which showed promise in reducing asthma symptoms by manipulating immune responses.
  • The study aimed to investigate the role of dendritic cells (DCs) in this process and involved transferring DCs from vaccinated mice to other mice to assess their impact on airway inflammation.
  • Results indicated that the transferred DCs significantly reduced asthmatic responses and promoted the development of regulatory T cells, suggesting that DCs are crucial for the rBCG's anti-asthma effects, especially through enhanced recruitment of certain DC subtypes.
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The secreted Mycobacterium tuberculosis (MTB) proteins, Ag85B and Hsp16.3, have been the focus of intensive research in recent years. These proteins have high sensitivity in bacterium-negative tuberculosis (TB) patients, and are valuable for the rapid diagnosis of bacterium-negative TB.

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The mechanisms of latency and the causes of reactivation of Mycobacterium tuberculosis remain poorly understood; an important reason for this gap in knowledge is the absence of a standardized animal model of latent tuberculosis infection (LTBI). A complete LTBI model should incorporate 2 aspects of LTBI: a persistent infection model with a low bacterial load and a latent infection model that is modified from the Cornell model. Many parameters must be carefully considered to establish an LTBI model, including the inoculating dose, the route of infection, the time interval between infection and the initiation of antibiotic therapy, and the genetic background of the host animal.

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Lung cancer is one of the leading causes of cancer-related death worldwide. Curcumin has been reported to have an antitumor effect by inducing apoptosis and suppressing growth of tumor cells. However, the mechanism by which curcumin exerts its anti-cancer effect needs further research.

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Curcumin extracted from the rhizomes of Curcuma longa L. has been shown to have inhibitory effects on cancers through its anti-proliferative and pro-apoptotic activities. Emerging evidence demonstrates that curcumin can overcome drug resistance to classical chemotherapies.

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Article Synopsis
  • Allergic asthma is driven by T helper (Th)2 cell immune responses, and new immunotherapy strategies aim to shift these responses towards Th1 to alleviate symptoms.
  • Previous studies demonstrated that a genetically modified form of bacille Calmette-Guerin (rBCG) could induce such a shift in naive mice, but its effectiveness in reducing allergic airway inflammation needed further investigation.
  • The current research showed that rBCG significantly reduced airway inflammation and related symptoms in allergic mice by promoting a Th1 response and enhancing regulatory T cells that suppress Th2 cells, indicating its potential as an effective asthma treatment.
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Objective: To express Micrococcus luteus resuscitation promoting factor (Rpf) domain and its mutants in prokaryotic cells, and to investigate their bioactivity.

Methods: The gene of Rpf domain and its mutants (E54K, E54A) were amplified by polymerase chain reaction (PCR) from the genome of Micrococcus luteus and cloned into pMD18-T vector. After sequenced, the Rpf domain and its mutant gene were subcloned into expression vector PGEX-4T-1, and transfected into E.

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Aim: To investigate the effects of rBCG vaccination containing foreign antigen Der p2 in the form of lipoprotein on murine immune response.

Methods: 6 to 8 weeks old and newborn BALB/c mice were vaccined intraperitoneally with 10(6) CFU rBCG or BCG. At the same time, the control group was injected with saline.

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Aim: To set up an accurate and rapid method to detect the phenotype of peripheral blood eosinophils using flow cytometry.

Methods: 10(-4) mol/L of theophylline, 10(-4) of dexamethasone and 10(-8) mol/L of rhIL-5 were added to peripheral blood sampled from normal human subjects. Anti-CD16-PE mAb and FITC-labelled mAbs to eosinophil's molecules were used to perform double labeling staining.

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Aim: To construct the E.coli-BCG shuttle vector carrying and expressing dust mite antigen gene Der p2 on cell wall of mycobacterium vaccae.

Methods: The gene fragment encoding 19 kDa antigen and the upstream control element (19-ss) was amplified by PCR from the mycobacteria tuberculosis H37Rv.

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Objective: To construct the E. coli.-BCG (Bacille Calmette-Guerin) shuttle vector expressing Mycobacterium tuberculosis secreted protein Ag85B-ESAT-6 on the surface of Mycobacterium vaccae.

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