Publications by authors named "Junrong Chen"

Objective: To explore clinical efficacy of platelet rich plasma (PRP) injection combined with extracorporeal shock wave therapy (ESWT) in treating osteochondral lesion of talus (OLT) with typeⅡa.

Methods: From January 2022 to June 2022, 45 patients with typeⅡa OLT were treated with PRP arthroscopic injection combined with ESWT, including 29 males and 16 females; aged from 18 to 63 years old with an average of(37.7±10.

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Article Synopsis
  • - The study examines the challenges of using waste polyester fibers (PET fibers) to create strong fiber-reinforced composites with high fiber content and better fiber length retention.
  • - Using a twin-rotor continuous mixer significantly improved the mechanical properties of the composites, resulting in increases of 21% in tensile strength and 13% in flexural strength at 60 wt% fiber content compared to a twin-screw extruder.
  • - The twin-rotor continuous mixer also produced longer fibers, with an average increase of 32% in fiber length, due to its lower shear frequency and higher tensile ratio, highlighting its effectiveness for these composites.
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is an obligate intracellular parasite of phylum Apicomplexa that poses a huge threat to pregnant hosts, and induces tragic outcomes for pregnant hosts, fetuses and newborns. However, the molecular mechanism underlying the tragic consequences caused by remains to be revealed. In the present study, we applied RNA-seq to study the transcriptomic landscape of the whole reproductive organ of pregnant mice post infection, aiming to reveal the key altered biological characters of reproductive organs of pregnant mice that could contribute to the tragic outcomes caused by infection.

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Graphene superlattices have simple and controllable electronic band structures, which can also be electrostatically tuned. They have been widely studied for band engineering and strong correlated physics, and have led to the discovery of a variety of exciting phenomena. To experimentally study the physics of graphene superlattices in a systematic way, it is desirable to control the structure parameters, which barely exist at the moment, onsite.

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Introduction: Limited knowledge exists regarding the impact of paternal smoking and alcohol exposure on the development of allergic rhinitis in offspring. Our study aimed to investigate the potential association between preconception paternal smoking and alcohol exposure and the likelihood of children allergic rhinitis.

Methods: A retrospective case-control study of 556 prepubertal children aged 3-12 years was performed.

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Objective: Increasing research suggests that paraspinal muscle fat infiltration may be a potential biological marker for the assessment of osteoporosis. Our aim was to investigate the relationship between lumbar paraspinal muscle properties on MRI and volumetric bone mineral density (vBMD) based on QCT in patients with lumbar disc herniation (LDH).

Methods: A total of 383 patients (aged 24-76 years, 193 females) with clinically and radiologically diagnosed LDH were enrolled in this retrospective study.

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Multiple evidence indicates that perinatal factors make impact on immune development and affect offspring allergic rhinitis (AR) risk. In this systematic review and meta-analysis, we examined available published studies to clarify the relationship between cesarean section (C-section) and offspring AR in children. To explore the relationship between C-section, especially the special attention was paid to different cesarean delivery mode, and the risk of AR in children.

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Effective recovery of peripheral nerve injury (PNI) after surgical treatment relies on promoting axon regeneration and minimizing the fibrotic response. Decellularized amniotic membrane (dAM) has unique features as a natural matrix for promoting PNI repair due to its pro-regenerative extracellular matrix (ECM) structure and anti-inflammatory properties. However, the fragile nature and rapid degradation rate of dAM limit its widespread use in PNI surgery.

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Background: The ulcerative colitis (UC) Mayo endoscopy score is a useful tool for evaluating the severity of UC in patients in clinical practice.

Objectives: We aimed to develop and validate a deep learning-based approach to automatically predict the Mayo endoscopic score using UC endoscopic images.

Design: A multicenter, diagnostic retrospective study.

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Photodynamic therapy (PDT) is a promising strategy for cancer treatment. However, its efficiency is hindered by three key parameters, namely, limited penetration depth of external light, tumor hypoxia, and self-aggregation of photosensitizers. Herein, we fabricated a novel "all-in-one" chemiluminescence-PDT nanosystem through the integration of an oxygen-supplying protein (hemoglobin, Hb) and a luminescent donor (luminol, Lum) in hierarchically engineered mesoporous porphyrinic metal-organic framework (MOF) nanoparticles.

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Objective: The purpose of this study was to provide evidence for early life care by meta-analyzing the relationship between infection during pregnancy and up to 2 years of age and the risk of subsequent allergic rhinitis (AR).

Methods: Published studies up to April 2022 were systematically searched in PubMed, Embase, Web of Science, Cochrane Library, SinoMed, CNKI, Wanfang Database, and VIP. Literature screening, including quality assessment, was performed, and the effect values (OR, HR, RR) and 95% confidence intervals (95% CI) of infection during pregnancy and up to 2 years of age and allergic rhinitis were extracted from each qualified study.

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Background: Inadequate bowel preparation leads to lower polyp detection rates, longer procedure times and lower cecal intubation rates. However, there is no consensus about high-quality bowel preparation, so our study evaluated graphical education and appropriate time before elective colonoscopy.

Patients And Methods: We performed a secondary analysis of a national colorectal cancer screening programme of 738 patients.

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Oxidative stress is considered as a major factor causing retinal pigment epithelium (RPE) dysfunction and finally leading to retinal diseases such as age-related macular degeneration (AMD). Developing hydrogels for RPE cell delivery, especially those with antioxidant feature, is emerging as a promising approach for AMD treatment. Herein, a readily prepared antioxidant alginate-based hydrogel was developed to serve as a cytoprotective agent for RPE cells against oxidative damage.

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Article Synopsis
  • * The highest infection rate was found in preweaned calves (33.7%), with lower rates in postweaned calves (24.5%), growing cattle (23.0%), and adults (17.3%).
  • * Genetic analysis showed that the majority of infections were due to assemblage E, while mixed infections with assemblage A were also detected; this study establishes important baseline data for managing protozoon infections in dairy cattle.
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Background And Aim: The identification of ulcerative colitis (UC) and Crohn's disease (CD) is a key element interfering with therapeutic response, but it is often difficult for less experienced endoscopists to identify UC and CD. Therefore, we aimed to develop and validate a deep learning diagnostic system trained on a large number of colonoscopy images to distinguish UC and CD.

Methods: This multicenter, diagnostic study was performed in 5 hospitals in China.

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Background: Maternal tobacco exposure during pregnancy is known to cause a potential hazard to the offspring's health. So far, published studies have shown no consistent results with whether tobacco exposure in utero is causally linked to the development of allergic rhinitis in offspring. The aim of this study was to comprehensively evaluate the association between maternal tobacco exposure during pregnancy and allergic rhinitis in offspring by meta-analysis and to provide reference for clinical work.

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Background: Conventional treatment for Crohn disease (CD) in pregnancy includes mesalamine, thiopurine, and anti-tumor necrosis factor (TNF)-α agents. However, women may abstain because of complications, nonresponse, or potential adverse outcomes. Peptide-based formula therapy, through oral or nasogastric feeding without other food intake, is an effective and safe therapy for active CD.

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Objective: To evaluate the reliability and repeatability of three-dimensional (3D)-CT measurement of glenoid track.

Methods: Glenoid and Hill-Sachs bone defects in 60 patients with recurrent anterior dislocation of the unilateral shoulder were evaluated by 3D-CT and analyzed by three independent observers(shoulder orthopedists) according to the Di Giacomo method. These injuries were classified to formulate a surgical protocol.

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A facile and efficient method for the synthesis of novel 2-substituted 4-tosyl-4,5-dihydrooxazolo[5,4-c]isoquinolines from 4-diazoisoquinolin-3-ones and nitriles is reported. The reaction proceeded through a TfOH-promoted formal [3 + 2] cycloaddition and the products could be conveniently converted to 2-aryloxazolo[5,4-c]isoquinolines and the subsequent 2-(oxazolo[5,4-c]isoquinolin-2-yl)phenol which emitted bright green light in dilute dichloromethane solution and in solid form as well. Simple operation, metal-free and mild reaction conditions, short reaction time and broad substrate scope are the prominent features of this methodology.

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Objective: A retrospective study was designed to explore the relationship between the satittal spinopelvic alignment in patients with lumbar disc extrusion and spontaneous resorption.

Methods: From May 2010 to March 2019, referring to NASS evidence-based clinical guidelines, patients with lumbar disc extrusion were enrolled in this retrospective study, according to the degree of herniation size during the follow-up, the patients were divided into two groups: resorption (group R: the herniated disc completely disappeared or the herniation size was grade 1 according to Michgan State University (MSU) classification) and nonresorption (group N: the herniated disc remain unchanged or the herniation size overpass grade 1), spinopelvic parameters (including the pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT), lumbar lordosis (LL)) were determined on standing profile radiographs of the lumbar spine and pelvis, and mean values were compared using the multi-factor analysis of variance.

Results: This study included 67 patients with lumbar disc extrusion.

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4-Diazoisoquinolin-3-ones were prepared efficiently via TBAB-promoted rearrangement of 4-diazoisochroman-3-imines under mild reaction conditions. The resulted 4-diazoisoquinolin-3-ones could be conveniently applied for the synthesis of 4-aryltetrahydroisoquinolin-3-ones either by the TfOH-catalyzed reaction with electron-rich arenes or by the BF-promoted reaction with aryl aldehydes.

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Background: This study aimed to understand the disease characteristics and treatment outcomes of Crohn's disease (CD) in a real-world setting in China.

Methods: In this prospective, non-interventional, multicenter disease registry, adults (≥18 years) with existing and newly diagnosed CD were recruited from 14 medical centers across China from January 2015 to January 2017. The study consisted of the enrollment and follow-up periods, of 12 months each.

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N-terminal coding sequences (NCSs) of genes significantly influence gene expression at the translation level and are important for fine-tuning gene expression in bacteria, however, engineering NCSs to fine-tune metabolic pathways is challenging. Here, we developed a statistics-guided native and synthetic NCSs engineering approach to fine-tune gene expression in the industrially important microorganism Bacillus subtilis. This method is based on experimentally characterizing and statistically analyzing 96 rationally selected NCSs from B.

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