Publications by authors named "Jiang Weiwei"

Background: Anorectal malformations (ARMs) are among the most commonly congenital abnormalities of distal hindgut development, ranging from anal stenosis to anal atresia with or without fistulas and persistent cloaca. The etiology remains elusive for most ARM cases and the majority of genetic studies on ARMs were based on a candidate gene approach.

Materials And Methods: In all eight family members of a non-consanguineous Chinese family, we performed whole-exome sequencing.

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Background: The integrative analysis of microRNA and mRNA expression profiles can elucidate microRNA-targeted gene function. We used this technique to elucidate insights into the immunological pathology of non-alcoholic fatty liver disease (NAFLD).

Methods: We analyzed differentially expressed microRNA and mRNA expression profiles of CD4+ T lymphocytes from the liver and mesenteric lymph nodes (MLNs) of mice with NAFLD using microarrays and RNA sequencing.

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Cryptococcosis is an infection that may be lethal in patients with nephrotic syndrome (NS). However, there is relatively limited epidemiological and clinical data about cryptococcosis in NS patients. We performed a pooled analysis to systemically summarize the epidemiology, risk factors, clinical and laboratory characteristics, treatments and outcomes of cryptococcosis in NS patients.

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There is increasing evidence of activities of chlorinated by-products of bisphenol A (BPA) on retinoic acid system. Their agonistic and antagonistic activities to human retinoid X receptor (RXR) were assessed by a two-hybrid yeast assay. Aqueous solutions of 1mg/L BPA were chlorinated by sodium hypochlorite (NaClO).

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Recent gene-profiling analyses showed significant upregulation of the folate hydrolase () gene in the affected intestinal mucosa of patients with inflammatory bowel disease (IBD). The gene encodes a type II transmembrane glycoprotein termed glutamate carboxypeptidase II (GCPII). To establish that the previously reported increased gene expression was functional, we quantified the glutamate carboxypeptidase enzymatic activity in 31 surgical specimens and report a robust 2.

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Backgrounds: Inflammation plays an important role in all stages of atherosclerosis, but little is known about the therapeutic effects of quenching inflammation in atherosclerotic lesions formation.

Purpose: Herein, the effect of artesunate, a derivant from artemisinin from the traditional Chinese herb sweet wormwood, could attenuate the progression of atherosclerosis lesion formation alone or combined with rosuvastatin in Western-type diet (WD) fed ApoE(-/-) mice, and explored its possible mechanisms.

Methods: The methods such as ELISA for plasma lipids and cytokines analyses, qRT-PCR and western blot for mRNA and protein expressions, and MTT assay for human umbilical vein endothelial cells (HUVECs) viability were used for in vivo and in vitro experiments.

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Background: Radiographic evaluation for patients with scoliosis using Cobb method is the current gold standard, but radiography has radiation hazards. Several groups have recently demonstrated the feasibility of using 3D ultrasound for the evaluation of scoliosis. Ultrasound imaging is radiation-free, comparatively more accessible, and inexpensive.

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Perfluoroalkyl substances (PFASs) such as perfluorohexanesulfonate (PFHxS), perfluorooctanoate (PFOA), perfluorooctanesulfonate (PFOS) and PFOS-precursors are routinely measured in human plasma and serum, but their relative abundance in the blood cell fraction has not been carefully examined, particularly at the isomer-specific level. Human plasma and whole blood were collected and partitioning behaviors of PFASs and their isomers between plasma and blood cells were investigated. In human samples, mass fraction in plasma (Fp) for PFASs increased among perfluoroalkyl carboxylates as the carbon chain length increased from C6 (mean 0.

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Background And Objectives: Compared with total parenteral nutrition (TPN), enteral nutrition is more suitable for patients post-operatively. Our aim was to determine the safety and feasibility of early enteral nutrition (EEN) using a jejunum feeding tube in neonates after undergoing a partial gastrectomy.

Methods And Study Design: This was a retrospective review of 46 patients who underwent partial gastrectomies for gastric perforation in our hospital.

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Seven new fawcettimine-type (1-7) and two new lycopodine-type (8 and 9) Lycopodium alkaloids, as well as 10 known compounds, were isolated from the club moss, Lycopodium obscurum L. The structures of obscurumines H-P (1-9) were determined based on high-resolution MS and 1D and 2D NMR data. Compounds 1 and 2 include a new skeleton that is formed via the linkage of C-9-N-2', which is rarely present in Lycopodium alkaloids.

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The routine clinical breast ultrasound annotation method is limited by the time it consumes, inconsistency, inaccuracy and incomplete notation. A novel 3-D automatic annotation method for breast ultrasound imaging has been developed that uses a spatial sensor to track and record conventional B-mode scanning so as to provide more objective annotation. The aim of the study described here was to test the feasibility of the automatic annotation method in clinical breast ultrasound scanning.

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Article Synopsis
  • Dexamethasone (Dex) is a synthetic glucocorticoid known for serious side effects like immune suppression, while betulinic acid (BA), derived from white birch, shows promise in modulating immune responses.
  • In a study, mice were pre-treated with varying doses of BA for 14 days before a single Dex injection, leading to decreased oxidative stress and improved cell survival from Dex-induced damage.
  • Results indicated that BA not only reduced oxidative damage but also improved antioxidant enzyme activity and mitochondrial function, suggesting its protective role against Dex-induced thymocyte apoptosis.
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Background: The described surgical strategies for the management of omphalocele include primary closure, staged closure, and delayed closure. A primary repair is not suitable for all giant omphaloceles. We implanted two grafts, small intestinal submucosal (SIS) and acellular dermal matrix (ADM) onto abdominal wall defects in neonates to study the safety and efficacy of SIS and ADM graft techniques for initial closure of giant omphaloceles in infants, and we also implanted these grafts onto abdominal wall defects in an animal model.

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Three new iridoids, 10-deacetyl suspensolide A aglycone (1), 7-deacetyl suspensolide A aglycone (2), and 7,10-dideacetyl suspensolide A aglycone (3), were isolated from two species of Viburnum. Their structures were elucidated on the basis of spectroscopic methods, including 1D and 2D NMR techniques. Compound 2 exhibited moderate anti-inflammatory activity against NO production in LPS-stimulated RAW 264.

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Four new fawcettimine-related alkaloids (1-4), together with 17 known ones, were isolated from club moss Phlegmariurus squarrosus. Notably, compound 1 was the derivative of lycoflexine with an unprecedented additional methyl group at C-17. Their structures were determined by extensive spectroscopic analysis, including 1D and 2D NMR, and HR-MS, as well as by comparison with the literature data.

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Background/objective: Standing radiograph with Cobb's method is routinely used to diagnose scoliosis, a medical condition defined as a lateral spine curvature > 10° with concordant vertebral rotation. However, radiation hazard and two-dimensional (2-D) viewing of 3-D anatomy restrict the application of radiograph in scoliosis examination.

Methods: In this study, a freehand 3-D ultrasound system was developed for the radiation-free assessment of scoliosis.

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Intestinal fungi are increasingly believed to greatly influence gut health. However, the effects of fungi on intestinal inflammation and on gut bacterial constitution are not clear. Here, based on pyrosequencing method, we reveal that fungal compositions vary in different intestinal segments (ileum, cecum, and colon), prefer different colonization locations (mucosa and feces), and are remarkably changed during intestinal inflammation in dextran sulfate sodium (DSS)-colitis mouse models compare to normal controls: Penicillium, Wickerhamomyces, Alternaria, and Candida are increased while Cryptococcus, Phialemonium, Wallemia and an unidentified Saccharomycetales genus are decreased in the guts of DSS-colitis mice.

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Article Synopsis
  • - The study explores the effectiveness of emodin as a potential treatment against methicillin-resistant Staphylococcus aureus (MRSA), a significant cause of hospital infections, especially since few antibiotics can successfully combat it.
  • - Researchers analyzed emodin's antibacterial activity through various tests, including minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC), and found that it was effective against different strains of MRSA without developing resistance over time.
  • - Emodin demonstrated protective effects in mice, reducing bacterial load and possibly damaging MRSA cell walls and membranes, while showing low toxicity to mammalian cells, indicating it may be a promising avenue for future drug development against MRSA.
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Biomarkers of inflammatory bowel disease (IBD) are non-invasive or minimally invasive tests for IBD diagnosis and/or prognosis as well as assessment of disease activity and response to therapy. Here, we update the current status of IBD biomarkers, including serological, fecal, and genetic (DNA and microRNA [miRNA]) biomarkers. As an update, the classical serological biomarkers, including ASCA, pANCA, anti-OmpC, anti-Cbir, anti-I2, and other anti-glycan antibodies, are discussed only briefly.

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This study investigated the anti-methicillin-resistant Staphylococcus aureus (anti-MRSA) activity and chemical compositions of ether extracts from Rhizoma Polygoni Cuspidati (ET-RPC). Significant anti-MRSA activities of ET-RPC against MRSA252 and MRSA clinical strains were tested in in vitro antibacterial experiments, such as inhibition zone diameter test, minimal inhibitory concentration test, and dynamic bacterial growth assay. Subsequently, 7 major compounds of ET-RPC were purified and identified as polydatin, resveratrol-4-O-d-(6'-galloyl)-glucopyranoside, resveratrol, torachryson-8-O-glucoside, emodin-8-O-glucoside, 6-hydroxy-emodin, and emodin using liquid chromatography - electrospray ionization - tandem mass spectrometry.

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Hirschsprung's disease (HSCR) is a rare congenital disease caused by impaired proliferation and migration of neural crest cells. We investigated changes in expression of microRNAs (miRNAs) and the genes they regulate in tissues of patients with HSCR. Quantitative real-time PCR and immunoblot analyses were used to measure levels of miRNA, mRNAs, and proteins in colon tissues from 69 patients with HSCR and 49 individuals without HSCR (controls).

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Background: Early enteral nutrition (EEN) is better than total parenteral nutrition (TPN) for many reasons. Our aim was to determine the safety and feasibility of EEN using a jejunum feeding tube in the duodenum or jejunum for congenital obstruction in neonates post-operatively.

Methods: This was a retrospective review of 120 patients who had duodenal and jejunal congenital obstructions in our hospital.

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Superparamagnetic iron oxide nanoparticles (SPIONs) have been the subject of extensive research due to their potential biomedical applications. In the present investigation, superparamagnetic FA-PEI-Fe3O4 were successfully prepared and evaluated as a targeted MRI contrast agent. FTIR characteristics, TGA, VSM, and MR imaging confirmed the composition and magnetic properties of the synthesized nanoparticles.

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Perfluoroalkyl acids (PFAAs) have been widely used in consumer and industrial products for decades and are widely detected in the environment and humans all over the world. The information on the isomeric profiles of commercial products is important to identify the manufacturing origins of PFAAs in the environment. For the first time, the PFAA compositions and isomeric profiles of perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) were reported in three PFOS and five PFOA commercial products manufactured in China.

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Non-alcoholic fatty liver disease (NAFLD) has recently been considered to be under the influence of the gut microbiota, which might exert toxic effects on the human host after intestinal absorption and delivery to the liver via the portal vein. In this study, the composition of the gut microbiota in NAFLD patients and healthy subjects was determined via 16S ribosomal RNA Illumina next-generation sequencing. Among those taxa displaying greater than 0.

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