24 results on '"Du MY"'
Search Results
2. Guide to Green Roofs for Wastewater Treatment: A Vietnam Perspective
- Author
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Vo, Thi-Kim-Quyen, Tran, Cong-Sac, Ha, The-Luong, Hoang, Quang-Huy, Dao, Thi-Viet-Huong, Du, My-Le, Jegatheesan, Veeriah, Bui, Xuan-Thanh, Jegatheesan, Jega V., Series Editor, Shu, Li, Series Editor, Lens, Piet N.L., Series Editor, Chiemchaisri, Chart, Series Editor, Jegatheesan, Veeriah, editor, Velasco, Perlie, editor, and Pachova, Nevelina, editor
- Published
- 2024
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3. Design and Manufacture of Welding Fumes Electrostatic Precipitator and Parameter Study on Filtration Performance
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Nguyen, Hoang Bao Hung, primary, Du, My Le, additional, and Bui, Trong Hieu, additional
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- 2022
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4. A Highly Biocompatible Polyoxotungstate with Fenton-like Reaction Activity for Potent Chemodynamic Therapy of Tumors.
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Xiao HP, Du MY, Sun XB, Xu RF, Li DM, Yue SN, Cai PW, Sun RZ, Zhang ZZ, Huang X, Li XX, Gao Y, and Zheng ST
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- Animals, Mice, Apoptosis drug effects, Biocompatible Materials chemistry, Biocompatible Materials pharmacology, Biocompatible Materials chemical synthesis, Cell Line, Tumor, Iron chemistry, Drug Screening Assays, Antitumor, Hydrogen Peroxide chemistry, Humans, Tungsten Compounds chemistry, Tungsten Compounds pharmacology, Tungsten Compounds therapeutic use, Antineoplastic Agents chemistry, Antineoplastic Agents pharmacology, Antineoplastic Agents chemical synthesis
- Abstract
Integrating Fenton chemistry and nanomedicine into cancer therapy has significantly promoted the development of chemodynamic therapy (CDT). Nanoscale polyoxometalates (POMs), with their reversible redox properties, exhibit promising potential in developing outstanding CDT drugs by exploring their Fenton-like catalytic reactivity in tumor environments. However, such research is still in its infancy due to the challenges of acquiring POMs that are both easily prepared and possess ideal therapeutic effects, physiological solubility, biocompatibility and safety. In this work, we report the synthesis of a new crystalline antimonotungstate {Dy
2 Sb2 W7 O23 (OH)(DMF)2 (SbW9 O33 )2 } (1, DMF=N, N-dimethylformamide) with gram-scale high yield via a facile "one-pot" solvothermal reaction. 1 exhibits not only a soluble and water-stable POM nanocluster, but also excellent catalytic activity for hydroxyl radical-generating Fenton-like reactions. Further biomedical studies reveal that 1 can trigger cell apoptosis and promote lipid peroxidation, exhibiting high cytotoxicity and selectivity towards B16-F10 mouse melanoma cancer cells with an IC50 value of 4.75 μM. Especially, 1 can inhibit melanoma growth in vivo with favorable biosafety, achieving a 5.2-fold reduction in tumor volume and a weight loss of 76.0 % at the dose of 70 μg/kg. This research not only demonstrates the immense potential of antimonotungstates in CDT drug development for the first time but also provides new insights and directions for the development of novel anticancer drugs., (© 2024 Wiley-VCH GmbH.)- Published
- 2025
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5. Regarding the Role of Midwifery-Led Mobile Health App Intervention in Pregnancy.
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Du MY, Zhou J, and Chen H
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- 2024
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6. Correlation analysis of human papillomavirus E6/E7 mRNA detection with diagnosis, prognosis and recurrence risk in patients with cervical epithelioma.
- Author
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Zhang LL, Du MY, Du X, Duan J, Yao DM, Jing J, Feng C, and Song L
- Abstract
Background: Cervical intraepithelial neoplasia (CIN) is an important precursor of cervical cancer. Early detection and treatment can reduce the incidence of cervical cancer., Aim: To investigate the detection rate of human papillomavirus (HPV) E6/E7 mRNA in cervical tissue of patients with different types of epithelial cell neoplasia (CIN) and its relationship with CIN progression and diagnosis., Methods: One hundred women with HPV infection detected by cervical exfoliation cytology between January 2022 and January 2023 were retrospectively selected. These patients were graded CIN based on colposcopy and cervical pathology. The positive expression rates of HPV E6/E7 mRNA and HPV [polymerase chain reaction (PCR)-reverse dot crossing] were compared among all groups. Patients with HPV E6/E7 mRNA expression in the grade 1 CIN group were followed up for 1 yr. The relationship between atypical squamous epithelium and high malignant epithelial neoplasia was investigated by univariate and multivariate analysis., Results: The diagnostic sensitivity, specificity, and sensitivity of PCR-reverse point hybridization technology for secondary CIN were 70.41%, 70.66%, and 0.714, respectively. Sensitivity and specificity for secondary CIN were 752% and 7853%, respectively, the area under the curve value was 0.789. Logistic Multifactorial model analysis revealed that the HPV positive rates and the HPV E6/E7 mRNA positive rates were independent risk factors of CIN grade I ( P < 0.05). In CIN grade I patients with positive for HPV E6/E7 mRNA, in its orientation to grade CIN patients, in its orientation to grade CIN patients, at 69.2%, compared with patients negative for HPV E6/E7 mRNA (30.8%), significant difference ( P < 0.05)., Conclusion: HPV E6/E7 mRNA and HPV (PCR-reverse dot hybrid) positive expression have a close relationship with CIN-grade disease progression and is an independent risk factor for high-grade CIN lesions., Competing Interests: Conflict-of-interest statement: The authors declared no conflict of interest existing in this paper., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
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- 2024
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7. Genome-wide identification, characterization, and evolutionary analysis of the barley TALE gene family and its expression profiles in response to exogenous hormones.
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Liao TJ, Huang T, Xiong HY, Duo JC, Ma JZ, Du MY, and Duan RJ
- Abstract
Three-amino-loop-extension (TALE) family belongs to the homeobox gene superfamily and occurs widely in plants, playing a crucial role in regulating their growth and development. Currently, genome-wide analysis of the TALE family has been completed in many plants. However, the systematic identification and hormone response analysis of the TALE gene family in barley are still lacking. In this study, 21 TALE candidate genes were identified in barley, which can be divided into KNOX and BELL subfamilies. Barley TALE members in the same subfamily of the phylogenetic tree have analogically conserved motifs and gene structures, and segmental duplications are largely responsible for the expansion of the HvTALE family. Analysis of TALE orthologous and homologous gene pairs indicated that the HvTALE family has mainly undergone purifying selective pressure. Through spatial structure simulation, HvKNOX5-HvKNOX6 and HvKNOX5-HvBELL11 complexes are all formed through hydrogen bonding sites on both the KNOX2 and homeodomain (HD) domains of HvKNOX5, which may be essential for protein interactions among the HvTALE family members. Expression pattern analyses reveal the potential involvement of most HvTALE genes in responses to exogenous hormones. These results will lay the foundation for regulation and function analyses of the barley TALE gene family in plant growth and development by hormone regulation., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Liao, Huang, Xiong, Duo, Ma, Du and Duan.)
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- 2024
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8. Short-term culture for rapid identification by mass spectrometry and automated antimicrobial susceptibility testing from positive bottles.
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Tian PP, Su SS, Zhu LS, Wang T, Yang H, Du MY, Ding CZ, Wang L, Fan W, and Yi HW
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- Humans, Anti-Bacterial Agents pharmacology, Fungi drug effects, Fungi isolation & purification, Blood Culture methods, Gram-Negative Bacteria drug effects, Gram-Negative Bacteria isolation & purification, Time Factors, Gram-Positive Bacteria drug effects, Gram-Positive Bacteria isolation & purification, Sepsis microbiology, Sepsis drug therapy, Sepsis diagnosis, Microbial Sensitivity Tests methods, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization methods, Bacteria drug effects, Bacteria isolation & purification
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Background: Early and appropriate antibiotic treatment improves the clinical outcome of patients with sepsis. There is an urgent need for rapid identification (ID) and antimicrobial susceptibility testing (AST) of bacteria that cause bloodstream infection (BSI). Rapid ID and AST can be achieved by short-term incubation on solid medium of positive blood cultures using MALDI-TOF mass spectrometry (MS) and the BD M50 system. The purpose of this study is to evaluate the performance of rapid method compared to traditional method., Methods: A total of 124 mono-microbial samples were collected. Positive blood culture samples were short-term incubated on blood agar plates and chocolate agar plates for 5 ∼ 7 h, and the rapid ID and AST were achieved through Zybio EXS2000 MS and BD M50 System, respectively., Results: Compared with the traditional 24 h culture for ID, this rapid method can shorten the cultivation time to 5 ∼ 7 h. Accurate organism ID was achieved in 90.6% of Gram-positive bacteria (GP), 98.5% of Gram-negative bacteria (GN), and 100% of fungi. The AST resulted in the 98.5% essential agreement (EA) and 97.1% category agreements (CA) in NMIC-413, 99.4% EA and 98.9% CA in PMIC-92, 100% both EA and CA in SMIC-2. Besides, this method can be used for 67.2% (264/393) of culture bottles during routine work. The mean turn-around time (TAT) for obtaining final results by conventional method is approximately 72.6 ± 10.5 h, which is nearly 24 h longer than the rapid method., Conclusions: The newly described method is expected to provide faster and reliable ID and AST results, making it an important tool for rapid management of blood cultures (BCs). In addition, this rapid method can be used to process most positive blood cultures, enabling patients to receive rapid and effective treatment., (© 2024. The Author(s).)
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- 2024
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9. Hsa_circ_0001402 alleviates vascular neointimal hyperplasia through a miR-183-5p-dependent regulation of vascular smooth muscle cell proliferation, migration, and autophagy.
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Lin JJ, Chen R, Yang LY, Gong M, Du MY, Mu SQ, Jiang ZA, Li HH, Yang Y, Wang XH, Wang SF, Liu KX, Cao SH, Wang ZY, Zhao AQ, Yang SY, Li C, and Sun SG
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- Humans, Animals, Male, Mice, Beclin-1 metabolism, Beclin-1 genetics, Mice, Inbred C57BL, MicroRNAs genetics, Cell Proliferation genetics, Muscle, Smooth, Vascular metabolism, Autophagy genetics, RNA, Circular genetics, RNA, Circular metabolism, Cell Movement genetics, Neointima metabolism, Neointima genetics, Neointima pathology, Myocytes, Smooth Muscle metabolism, Hyperplasia
- Abstract
Introduction: Vascular neointimal hyperplasia, a pathological process observed in cardiovascular diseases such as atherosclerosis and pulmonary hypertension, involves the abundant presence of vascular smooth muscle cells (VSMCs). The proliferation, migration, and autophagy of VSMCs are associated with the development of neointimal lesions. Circular RNAs (circRNAs) play critical roles in regulating VSMC proliferation and migration, thereby participating in neointimal hyperplasia. However, the regulatory roles of circRNAs in VSMC autophagy remain unclear., Objectives: We aimed to identify circRNAs that are involved in VSMC autophagy-mediated neointimal hyperplasia, as well as elucidate the underlying mechanisms., Methods: Dual-luciferase reporter gene assay was performed to validate two competing endogenous RNA axes, hsa_circ_0001402/miR-183-5p/FKBP prolyl isomerase like (FKBPL) and hsa_circ_0001402/miR-183-5p/beclin 1 (BECN1). Cell proliferation and migration analyses were employed to investigate the effects of hsa_circ_0001402, miR-183-5p, or FKBPL on VSMC proliferation and migration. Cell autophagy analysis was conducted to reveal the role of hsa_circ_0001402 or miR-183-5p on VSMC autophagy. The role of hsa_circ_0001402 or miR-183-5p on neointimal hyperplasia was evaluated using a mouse model of common carotid artery ligation., Results: Hsa_circ_0001402 acted as a sponge for miR-183-5p, leading to the suppression of miR-183-5p expression. Through direct interaction with the coding sequence (CDS) of FKBPL, miR-183-5p promoted VSMC proliferation and migration by decreasing FKBPL levels. Besides, miR-183-5p reduced BECN1 levels by targeting the 3'-untranslated region (UTR) of BECN1, thus inhibiting VSMC autophagy. By acting as a miR-183-5p sponge, overexpression of hsa_circ_0001402 increased FKBPL levels to inhibit VSMC proliferation and migration, while simultaneously elevating BECN1 levels to activate VSMC autophagy, thereby alleviating neointimal hyperplasia., Conclusion: Hsa_circ_0001402, acting as a miR-183-5p sponge, increases FKBPL levels to inhibit VSMC proliferation and migration, while enhancing BECN1 levels to activate VSMC autophagy, thus alleviating neointimal hyperplasia. The hsa_circ_0001402/miR-183-5p/FKBPL axis and hsa_circ_0001402/miR-183-5p/BECN1 axis may offer potential therapeutic targets for neointimal hyperplasia., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Production and hosting by Elsevier B.V.)
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- 2024
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10. Implementation of point-of-care platforms for rapid detection of porcine circovirus type 2.
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Ke CH, Du MY, Hsieh WJ, Lin CC, Ting JM, Chiou MT, and Lin CN
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- Swine, Animals, Point-of-Care Systems, Polymerase Chain Reaction veterinary, Circovirus genetics, Swine Diseases diagnosis, Circoviridae Infections diagnosis, Circoviridae Infections veterinary
- Abstract
Background: Porcine circovirus type 2 (PCV2) infection is ubiquitous around the world. Diagnosis of the porcine circovirus-associated disease requires clinic-pathological elements together with the quantification of viral loads. Furthermore, given pig farms in regions lacking access to sufficient laboratory equipment, developing diagnostic devices with high accuracy, accessibility, and affordability is a necessity., Objectives: This study aims to investigate two newly developed diagnostic tools that may satisfy these criteria., Methods: We collected 250 specimens, including 170 PCV2-positive and 80 PCV2-negative samples. The standard diagnosis and cycle threshold (Ct) values were determined by quantitative polymerase chain reaction (qPCR). Then, two point-of-care (POC) diagnostic platforms, convective polymerase chain reaction (cPCR, qualitative assay: positive or negative results are shown) and EZtargex (quantitative assay: Ct values are shown), were examined and analyzed., Results: The sensitivity and specificity of cPCR were 88.23% and 100%, respectively; the sensitivity and specificity of EZtargex were 87.65% and 100%, respectively. These assays also showed excellent concordance compared with the qPCR assay (κ = 0.828 for cPCR and κ = 0.820 for EZtargex). The statistical analysis showed a great diagnostic power of the EZtargex assay to discriminate between samples with different levels of positivity., Conclusions: The two point-of-care diagnostic platforms are accurate, rapid, convenient and require little training for PCV2 diagnosis. These POC platforms can discriminate viral loads to predict the clinical status of the animals. The current study provided evidence that these diagnostics were applicable with high sensitivity and specificity in the diagnosis of PCV2 infection in the field., Competing Interests: Schweitzer Biotech Company (SBC) Ltd. is the sponsor of the project. Hsieh WJ, Lin CC, and Ting JM. are employees of the SBC. However, the authors declare that the research was conducted with integrity, following all ethical guidelines. All other authors declare no competing interests., (© 2024 The Korean Society of Veterinary Science.)
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- 2024
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11. Postoperative abdominal herpes zoster complicated by intestinal obstruction: A case report.
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Dong ZY, Shi RX, Song XB, Du MY, and Wang JJ
- Abstract
Background: Intestinal obstruction is a common occurrence in clinical practice. However, the occurrence of herpes zoster complicated by intestinal obstruction after abdominal surgery is exceedingly rare. In the diagnostic and treatment process, clinicians consider it crucial to identify the primary causes of its occurrence to ensure effective treatment and avoiding misdiagnosis., Case Summary: Herein, we present the case of a 40-year-old female patient with intestinal obstruction who underwent laparoscopic appendectomy and developed herpes zoster after surgery. Combining the patient's clinical manifestations and relevant laboratory tests, it was suggested that the varicella zoster virus reactivated during the latent period after abdominal surgery, causing herpes zoster. Subsequently, the herpes virus invaded the visceral nerve fibers, causing gastrointestinal dysfunction and loss of intestinal peristalsis, which eventually led to intestinal obstruction. The patient was successfully treated through conservative treatment and antiviral therapy and subsequently discharged from the hospital., Conclusion: Pseudo-intestinal obstruction secondary to herpes zoster infection is difficult to distinguish from mechanical intestinal obstruction owing to various causes. In cases of inexplicable intestinal obstructions, considering the possibility of a viral infection is essential to minimize misdiagnosis and missed diagnoses., Competing Interests: Conflict-of-interest statement: The authors have no conflicting interests to report., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
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- 2024
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12. [Effect of single basal application of controlled-release blended fertilizer on reactive nitrogen loss, carbon and nitrogen footprint during summer maize growth period].
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Gao W, Li ZS, Xie JZ, Zhou XL, DU MY, Wang XX, Chen YH, and Cao B
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- Zea mays, Fertilizers, Delayed-Action Preparations, Carbon, Nitrates, Agriculture methods, Soil, Edible Grain chemistry, Carbon Footprint, China, Nitrous Oxide analysis, Nitrogen analysis, Greenhouse Gases
- Abstract
To elucidate the agronomic and environmental effects of single basal application of controlled-release blended fertilizer in summer maize, and optimize management measures of nitrogen fertilizer for grain production in North China Plain, we conducted a field experiment in Dezhou Modern Agricultural Science and Technology Park in Shandong Province. There were four treatments: CK (no N fertilizer), FFP (farmer's fertilizing practice, 240 kg N·hm
-2 ), OPT (optimized nitrogen application, 210 kg N·hm-2 ), and CRBF (controlled-release blended fertilizer with single basal application, 210 kg N·hm-2 ). We compared maize yield and reactive nitrogen loss, and quantitatively evaluated the carbon and nitrogen footprints by using life cycle assessment method. The results showed that nitrogen application significantly increased summer maize yield. Compared with FFP, OPT and CRBF increased summer corn yield by 0.7% and 2.9%, respectively, decreased the total amount of ammonia volatilization, N2 O emission, and nitrate leaching by 13.0% and 72.7%, 13.3% and 37.5%, 20.5% and 23.5% respectively. Compared with CK, nitrogen application significantly increased the global warming potential (GWP) of summer maize production. Compared with FFP, GWP and greenhouse gas emission intensity of OPT decreased by 3.8% and 4.2%, while the reduction of CRBF were 8.7% and 12.0%, respectively. Compared with CK, nitrogen application significantly increased the carbon and nitrogen footprint of summer maize production. The production and transportation of nitrogen fertilizer and soil greenhouse gas emission were the main contributing factors of the carbon footprint, with contribution rates of 54%-60% and 24%-31%, respectively. Nitrate leaching was the main contributing factor of nitrogen footprint, with contribution rate of 57%-94%. Compared with FFP, the carbon and nitrogen footprints of OPT and CRBF were reduced by 11.0% and 16.5%, 19.6% and 28.4%, respectively. Considering the yield, reactive nitrogen loss and carbon and nitrogen footprint, we recommended the single basal application of controlled-release blended fertilizer as an effective nitrogen fertilizer management measure to promote grain clean production in the North China Plain.- Published
- 2023
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13. [Long-term follow-up of humanized and murine CD19 CAR-T-cell therapy for B-cell acute lymphoblastic leukemia].
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Du MY, Zhang YQ, Liao DY, Xie W, Xiong W, Mei H, and Hu Y
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- Animals, Humans, Mice, Antigens, CD19, Cell- and Tissue-Based Therapy, Follow-Up Studies, Receptors, Chimeric Antigen, Burkitt Lymphoma drug therapy, Immunotherapy, Adoptive, Leukemia, Lymphocytic, Chronic, B-Cell drug therapy, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma, Precursor Cell Lymphoblastic Leukemia-Lymphoma drug therapy
- Abstract
Objective: Murine CD19 chimeric antigen receptor T-cell (CAR-T) products have been approved for the treatment of refractory/relapsed (R/R) B-cell acute lymphocytic leukemia (B-ALL) ; moreover, humanized products are also undergoing clinical trials. This study aimed to explore the differences in safety and short- and long-term follow-up efficacy between humanized and murine CD19 CAR-T-cells for treating relapsed and refractory B-ALL. Methods: Clinical data of 80 patients with R/R B-ALL treated with CD19-targeted CAR-T-cells at the Union Hospital of Tongji Medical College of Huazhong University of Science and Technology between May 2016 and March 2023 were analyzed, which included 31 patients with murine CAR-T and 49 with humanized products. Results: The proportion of patients with cytokine-release syndrome (CRS) in the murine and humanized groups was 63.1% and 65.3%, respectively. Moreover, a higher proportion of patients suffered from severe CRS in the murine group than in the humanized CAR-T group (19.4% vs 8.2%, P =0.174). Furthermore, one patient per group died of grade 5 CRS. The incidence of grade 1-2 immune effector cell-associated neurotoxicity syndrome (ICANS) was 12.9% and 6.1%, respectively; severe ICANS were not observed. Among patients receiving murine CAR-T-cells, an overall response (OR) was observed in 74.2%. Conversely, the OR rate of patients receiving humanized CAR-T-cells was 87.8%. During the median follow-up time of 10.5 months, the median recurrence-free survival (RFS) of patients with murine CAR-T-cells was 12 months, which was as long as that of patients with humanized CAR-T-cells. The median overall survival (OS) were not reached in both groups. Of the 45 patients with a bone marrow burden over 20% at baseline, humanized CAR-T therapy was associated with a significantly improved RFS (43.25% vs 33.33%, P =0.027). Bridging transplantation was an independent factor in prolonging OS ( χ (2)=8.017, P =0.005) and PFS ( χ (2)=6.584, P =0.010). Common risk factors, such as age, high proportion of bone marrow blasts, and BCR-ABL fusion gene expression, had no significant effect on patients' long-term follow-up outcomes. Three patients reached complete remission after reinfusion of humanized CAR-T-cells. However, one patient relapsed one month after his second infusion of murine CAR-T-cells. Conclusions: The results indicate that humanized CAR-T therapy showed durable efficacy in patients with a higher tumor burden in the bone marrow without any influence on safety. Moreover, it could overcome immunogenicity-induced CAR-T resistance, providing treatment options for patients who were not treated successfully with CAR-T therapies.
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- 2023
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14. Effects of RNA m6A writer METTL3 and hDPSCs on the peripheral nerve regeneration: In vitro and in vivo study.
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Hei WH, Du MY, and He H
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- Rats, Animals, Nerve Regeneration, Peripheral Nerves, Cell Differentiation, Dental Pulp, Cell Proliferation, RNA, Mandibular Nerve Injuries
- Abstract
Purpose: This study aimed to investigate whether RNA m6A participated in the differentiation and proliferation of dental pulp stem cells and improved peripheral nerve regeneration using a rat model of crushed mental nerve injury., Materials and Methods: The components of RNA m6A were analyzed through qRT-PCR, while cell proliferation of different groups, including over-expression METTL3 (OE-METTL3) hDPSCs group, knock-down METTL3 (KD-METTL3) hDPSCs group and hDPSCs group in vitro, was clarified by MTT assay. Five groups were designed, namely, Control group, Sham group, hDPSCs group, OE-METTL3 group and KD-METTL3 group. After crushed right mental nerve injury, cells of different groups were transplanted into the lesion area (6 ul in volume). At one, two and three weeks later, histomorphometric analysis and sensory test were conducted in vivo., Results: qRT-PCR results showed that "METTL3" was participated in the differentiation of dental pulp stem cells. There were differences (P < 0.05) between OE-METTL3 group and control group in MTT results in the third, fourth and sixth days. Moreover, the sensory test revealed significant differences (P < 0.05) in difference score and gap score between OE-METTL3 group and KD-METTL3 group in the first and third weeks. The axon counts and retrograde labeled neurons significantly increased in OE-METTL3 group compared with KD-METTL3 group., Conclusions: These results demonstrated that RNA m6A participated in the differentiation and proliferation of dental pulp stem cells, and that OE-METTL3 group exhibited the greater ability to improve peripheral nerve regeneration than KD-METTL3 group and hDPSCs group., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Author(s). Published by Elsevier B.V. All rights reserved.)
- Published
- 2023
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15. [Analysis of vaginal microecology in 23 181 cases of the gynecological female outpatients].
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Zong XN, Feng YZ, Bai HH, Wang HSQ, Shang X, Fan LY, Li T, Zhang Z, Du MY, and Liu ZH
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- Pregnancy, Female, Humans, Outpatients, Vagina microbiology, Gynecology, Vaginosis, Bacterial diagnosis, Vaginosis, Bacterial epidemiology, Vaginosis, Bacterial microbiology, Trichomonas Vaginitis diagnosis, Candidiasis, Vulvovaginal diagnosis, Candidiasis, Vulvovaginal epidemiology, Candidiasis, Vulvovaginal microbiology
- Abstract
Objective: To analyze the vaginal microecological status of vaginitis population and non-vaginitis population of gynecological female outpatients. Methods: A total of 30 265 women who visited the gynecological outpatient clinic of Beijing Obstetrics and Gynecology Hospital from December 2018 to December 2020 completed vaginal microecological examination. After removing the follow-up patients, 23 181 women were divided into group with symptoms and signs of vaginitis (6 697 cases) and group without symptoms and signs of vaginitis (16 484 cases), according to whether the women with symptoms and signs of vaginitis or not. And the vaginal microecological status of the two groups was compared and analyzed. Results: (1) The total detection rate of vaginitis in the initial women was 34.87% (8 083/23 181), of which 46.10% (3 087/6 697) in group with symptoms and signs of vaginitis and 30.31% (4 996/16 484) in group without symptoms and signs of vaginitis, nearly 1/3 of the gynecological outpatients without signs and symptoms of vaginitis had vaginitis. (2) Among the types of simple vaginitis, vulvovaginal candidiasis (VVC) was the most frequent in group with symptoms and signs of vaginitis (16.01%, 1 072/6 697), followed by aerobic vaginitis (AV; 12.83%, 859/6 697), with significant differences compared with group without symptoms and signs of vaginitis (all P <0.001). There were no statistical differences between the two groups of bacterial vaginosis (BV) and trichomonal vaginitis (TV), indicating that BV and TV were more likely to be neglected (all P >0.05). (3) The proportion of various combinations of vaginitis among 2 632 cases of mixed vaginitis were, in descending order: BV+AV, VVC+AV, BV+AV+VVC, AV+TV, AV+TV+BV, BV+VVC. (4) Microecological analysis of 15 098 cases diagnosed with non-vaginitis had normal flora (including those with normal flora and those with normal flora but decreased function) in 14 013 cases (92.81%, 14 013/15 098), abnormal flora in 429 cases (2.84%, 429/15 098) and the BV intermediate in 656 cases (4.34%, 656/15 098); this indicated that the vast majority of the microecological tests were normal in the vaginal microbiota of those without vaginitis. Conclusions: Microecological examination could diagnose multiple pathogenic infections at once, and is especially important as a guide for the definitive diagnosis of mixed vaginitis and vaginitis with atypical clinical symptoms. Vaginal infections such as BV and TV that are easily overlooked should be concerned.
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- 2023
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16. Transcutaneous auricular vagus stimulation (taVNS) improves human working memory performance under sleep deprivation stress.
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Zhao R, Chang MY, Cheng C, Tian QQ, Yang XJ, Du MY, Cui YP, He ZY, Wang FM, Kong Y, Deng H, Lu LM, Tang CZ, Xu NG, Sun JB, and Qin W
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- Humans, Sleep Deprivation, Memory, Short-Term, Vagus Nerve physiology, Cognition, Vagus Nerve Stimulation
- Abstract
Many human activities require high cognitive performance over long periods, while impairments induced by sleep deprivation influence various aspects of cognitive abilities, including working memory (WM), attention, and processing speed. Based on previous research, vagal nerve stimulation can modulate cognitive abilities, attention, and arousal. Two experiments were conducted to assess the efficacy of transcutaneous auricular vagus nerve stimulation (taVNS) to relieve the deleterious effects of sleep deprivation. In the first experiment, 35 participants completed N-back tasks at 8:00 a.m. for two consecutive days in a within-subject study. Then, the participants received either taVNS or earlobe stimulation (active control) intervention in two sessions at random orders after 24 h of sustained wakefulness. Then, they completed the N-back tasks again. In the second experiment, 30 participants completed the psychomotor vigilance task (PVT), and 32 completed the N-back tasks at 8:00 a.m. on the first and second days. Then, they received either taVNS or earlobe stimulation at random orders and finished the N-back and PVT tasks immediately after one hour. In Experiment 1, taVNS could significantly improve the accuracy rate of participants in spatial 3-back tasks compared to active control, which was consistent with experiment 2. However, taVNS did not specifically enhance PVT performance. Therefore, taVNS could be a powerful intervention for acute sleep deprivation as it can improve performance on high cognitive load tasks and is easy to administer., Competing Interests: Declarations of interest None., (Copyright © 2022 Elsevier B.V. All rights reserved.)
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- 2023
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17. An early-onset case of post-cardiac injury syndrome after coronary stenting.
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Liu R, Cui W, Du MY, Yuan JQ, Zhang J, Xu O, and Liu HB
- Abstract
Competing Interests: Conflicts of interest: None.
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- 2023
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18. Establishment and Validation of a New Predictive Model for Insulin Resistance based on 2 Chinese Cohorts: A Cross-Sectional Study.
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Zhang S, Wang XC, Li J, Wang XH, Wang Y, Zhang YJ, Du MY, Zhang MY, Lin JN, and Li CJ
- Abstract
Background: Visceral adiposity plays a key role in the development of insulin resistance (IR), so surrogate index that can indicate visceral obesity may have higher predictive value for IR. This study aimed to establish and validate a new predictive model including indicator of visceral obesity for IR., Methods: The study population consisted of two cohorts. The derivation cohort was a group of 667 patients with newly diagnosed type 2 diabetes and the population undergoing a routine health checkup was the validation cohort. The predictive model was established by the logistic regression analysis. Its value for predicting IR was compared with other surrogate indices by the receiver operating characteristic curve., Results: The odds ratio (OR) of age, visceral fat area (VFA), triglyceride (TG), fasting plasma glucose (FPG), and alanine aminotransferase (ALT) for IR was 1.028 (95% CI, 1.008-1.048) ( P < 0.01), 1.016 (95% CI, 1.009-1.023) ( P < 0.001), 1.184 (95% CI, 1.005-1.396) ( P < 0.05), 1.334 (95% CI, 1.225-1.451) ( P < 0.001), and 1.021 (95% CI, 1.001-1.040) ( P < 0.05). The formula of the predictive model was (0.0293 × age + 1.4892 × Ln VFA + 0.4966 × Ln TG + 2.784 × Ln FPG + 0.6906 × Ln ALT)/2. The area under the curve was the largest among all the previously reported predictors., Conclusions: This study established and validated a predicting model for IR and confirmed its predictive value in comparison with other surrogate indicators, which will offer a simple and effective tool to measure IR in future large population studies., Competing Interests: The authors declare that they have no conflicts of interest., (Copyright © 2022 Shi Zhang et al.)
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- 2022
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19. Effect of different sweeteners on the quality, fatty acid and volatile flavor compounds of braised pork.
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He ZG, Zhang Y, Yang MD, Zhang YQ, Cui YY, Du MY, Zhao D, and Sun H
- Abstract
This study aimed to assess how several sweeteners (white sugar, Siraitia grosvenorii fruit, mogrosides, and stevia glycoside) affected the flavor, fatty acid composition, and quality of braised pork. The findings indicated that braised meat prepared with sweeteners differed from typical braised pork. When simmered for 60 min, the typical braised pork with white granulated sugar exhibited a significant cooking loss (CL) and little water content. Significantly more than in the group containing Siraitia grosvenorii , mogroside, and stevia glycoside, the Thiobarbituric acid (TBARS) value increased by 14.39% (P < 0.05). The sample in the group that included mogroside had a low CL rate. After 40 min of stewing, the lean pork has the highest L* value, but the 60-min stew sample is nicely colored and stretchy. Mogroside can prevent protein, and lipid oxidation, is thermally stable and reduces CL during stewing. Additionally, Siraitia grosvenorii and stevia glycosides help prevent oxidation from intensifying during stewing. When Siraitia grosvenorii is added, lipid oxidation is significantly inhibited, and stevia glycosides are more beneficial for enhancing meat color. With an increase in heating time, the fatty acids in braised pork reduced; the unsaturated fatty acid (UFA) of the Siraitia grosvenorii fruit (SF) and mg group also fell somewhat, and the UFA: SFA ratio was higher than that of the white sugar (WS) group. The SFA content of the braised meat in the stevia glycoside group was higher than that of the WS group. In all, 75 volatile flavor elements in braised pork were discovered by Gas chromatography-ion mobility spectrometry (GC-IMS). The sweetener increased alcohols, esters, and acids in the braised pork. As stewing time increased, ketones decreased, but aldehydes and esters increased. The pork formed antioxidant peptides with great nutritional value after cooking. Braised pork with mogroside and stevia glycoside additions primarily have some protein color protection and antioxidant effects. This study may offer fresh perspectives on applying natural sweeteners and enhancing braised pork's flavor., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 He, Zhang, Yang, Zhang, Cui, Du, Zhao and Sun.)
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- 2022
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20. Integrated analysis of tRNA-derived small RNAs in proliferative human aortic smooth muscle cells.
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Zhao JZ, Li QY, Lin JJ, Yang LY, Du MY, Wang Y, Liu KX, Jiang ZA, Li HH, Wang SF, Sun B, Mu SQ, Li B, Liu K, Gong M, and Sun SG
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- 3' Untranslated Regions, Aorta metabolism, Humans, RNA, Messenger metabolism, RNA, Transfer genetics, RNA, Transfer metabolism, RNA, Transfer pharmacology, MicroRNAs genetics, MicroRNAs metabolism, Myocytes, Smooth Muscle
- Abstract
Background: Abnormal proliferation of vascular smooth muscle cells (VSMCs) contributes to vascular remodeling diseases. Recently, it has been discovered that tRNA-derived small RNAs (tsRNAs), a new type of noncoding RNAs, are related to the proliferation and migration of VSMCs. tsRNAs regulate target gene expression through miRNA-like functions. This study aims to explore the potential of tsRNAs in human aortic smooth muscle cell (HASMC) proliferation., Methods: High-throughput sequencing was performed to analyze the tsRNA expression profile of proliferative and quiescent HASMCs. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to validate the sequence results and subcellular distribution of AS-tDR-001370, AS-tDR-000067, AS-tDR-009512, and AS-tDR-000076. Based on the microRNA-like functions of tsRNAs, we predicted target promoters and mRNAs and constructed tsRNA-promoter and tsRNA-mRNA interaction networks. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed to reveal the function of target genes. EdU incorporation assay, Western blot, and dual-luciferase reporter gene assay were utilized to detect the effects of tsRNAs on HASMC proliferation., Results: Compared with quiescent HASMCs, there were 1838 differentially expressed tsRNAs in proliferative HASMCs, including 887 with increased expression (fold change > 2, p < 0.05) and 951 with decreased expression (fold change < ½, p < 0.05). AS-tDR-001370, AS-tDR-000067, AS-tDR-009512, and AS-tDR-000076 were increased in proliferative HASMCs and were mainly located in the nucleus. Bioinformatics analysis suggested that the four tsRNAs involved a variety of GO terms and pathways related to VSMC proliferation. AS-tDR-000067 promoted HASMC proliferation by suppressing p53 transcription in a promoter-targeted manner. AS-tDR-000076 accelerated HASMC proliferation by attenuating mitofusin 2 (MFN2) levels in a 3'-untranslated region (UTR)-targeted manner., Conclusions: During HASMC proliferation, the expression levels of many tsRNAs are altered. AS-tDR-000067 and AS-tDR-000076 act as new factors promoting VSMC proliferation., (© 2022. The Author(s).)
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- 2022
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21. Ultrasound, CT, and MR Imaging for Evaluation of Cystic Renal Masses.
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Zeng SE, Du MY, Yu Y, Huang SY, Zhang D, Cui XW, and Dietrich CF
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- Humans, Kidney diagnostic imaging, Magnetic Resonance Imaging methods, Tomography, X-Ray Computed methods, Ultrasonography methods, Kidney Diseases, Cystic diagnostic imaging, Kidney Neoplasms diagnostic imaging
- Abstract
Cystic renal masses are often encountered during abdominal imaging. Although most of them are benign simple cysts, some cystic masses have malignant characteristics. The Bosniak classification system provides a useful way to classify cystic masses. The Bosniak classification is based on the results of a well-established computed tomography protocol. Over the past 30 years, the classification system has been refined and improved. This paper reviews the literature on this topic and compares the advantages and disadvantages of different screening and classification methods. Patients will benefit from multimodal diagnosis for lesions that are difficult to classify after a single examination., (© 2021 American Institute of Ultrasound in Medicine.)
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- 2022
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22. Reassessment of the Effect of Transcutaneous Auricular Vagus Nerve Stimulation Using a Novel Burst Paradigm on Cardiac Autonomic Function in Healthy Young Adults.
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Shen LL, Sun JB, Yang XJ, Deng H, Qin W, Du MY, Meng LX, Li N, Guo XY, Qiao WZ, Yang WQ, Liu P, and Zeng X
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- Autonomic Nervous System, Humans, Pilot Projects, Vagus Nerve physiology, Young Adult, Transcutaneous Electric Nerve Stimulation methods, Vagus Nerve Stimulation methods
- Abstract
Background: Transcutaneous auricular vagus nerve stimulation (taVNS) may modulate cardiac autonomic function. However, the response rate of the traditional tonic paradigm is low, and the results remain inconsistent. A recent pilot study presented a novel burst paradigm to activate the cardiac parasympathetic system, which might offer a new approach to treat cardiac autonomic function. The present study reassessed the effect of burst taVNS on modulating heart rate variability and explored the difference between burst and traditional tonic paradigms., Materials and Methods: Forty-two young adults were recruited for this study. Each participant underwent three types of taVNS with sham (30 sec of stimulation), tonic (25 Hz, 500 μsec), and burst (five pulses at 500 Hz every 200 msec) paradigms, respectively, with simultaneous electrocardiogram recording. One-way analysis of variance, multivariate analysis of variance, and linear regression were used for analysis. Multiple testing was performed using Bonferroni correction., Results: Both burst and tonic paradigms induced a significant decrease in heart rate, which continued until poststimulation, and increased cardiac parasympathetic activity. Moreover, two parasympathetic system indicators showed significant increase only in burst taVNS. The response rates during burst (35.7%) and tonic (38.1%) stimulations were both higher than that during sham stimulation (11.9%). The response to taVNS showed parameter specificity with few nonresponders to the tonic paradigm responding to the burst paradigm. The overall response rate increased from 38.1% in tonic taVNS to 54.8% in taVNS using both burst and tonic paradigms. For both burst and tonic responders, baseline cardiac parasympathetic activity was found to be significantly negatively correlated with changes during stimulation., Conclusion: The burst parameter could be used as an alternative strategy for regulating cardiac parasympathetic function by taVNS, which has the potential to be used as a complementary paradigm to traditional tonic taVNS for promoting clinical treatment efficacy., (Copyright © 2022. Published by Elsevier Inc.)
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- 2022
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23. [Ozone Formation and Key VOCs of a Continuous Summertime O 3 Pollution Event in Ji'nan].
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Sun XY, Zhao M, Shen HQ, Liu Y, Du MY, Zhang WJ, Xu HY, Fan GL, Gong HL, Li QS, Li DQ, Gao XM, and Zhang LN
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- China, Environmental Monitoring, Vehicle Emissions analysis, Air Pollutants analysis, Ozone analysis, Volatile Organic Compounds analysis
- Abstract
In the summer of 2019, field measurements of ozone (O
3 ) and its precursors[volatile organic compounds (VOCs) and nitrogen oxides (NOx )] were carried out at an urban site in Ji'nan. We found that the daily maximum 8-hour averages φ (O3 ) were (103.0±14.5)×10-9 . The average φ (NOx ) and φ (VOCs), which are ozone precursors, were (16.7±11.3)×10-9 and (22.4±9.4)×10-9 , respectively. The ·OH reactivity of VOCs was determined (9.6±3.8) s-1 . Ji'nan suffered from serious O3 pollution. An observation-constrained chemical box model was deployed to evaluate in situ photochemical O3 production, which indicated that chemical reactions made positive contributions to O3 production rates between 07:00 and 19:00 LT, with the average hourly O3 production rate of 35.6×10-9 h-1 . To evaluate the effectiveness of various ozone precursor control strategies in reducing ozone pollution, we combined the observation-based model (OBM) with the relative incremental reactivity (RIR) method. The key indicators that affect the local ozone production rate were identified. Ji'nan was under VOC-limited conditions and the key VOC precursors were alkenes. The O3 formation mechanism changed from the VOC-limited regime in the morning to the transitional regime in the afternoon. Correspondingly, the simulated local O3 production rate was increased from 18.3×10-9 h-1 to 29.6×10-9 h-1 . To further explore the role of anthropogenic emissions in ozone pollution, we used the positive matrix factorization (PMF) model to identify the major sources contributing to VOCs. The major sources in Ji'nan were vehicular exhaust and gasoline evaporation, accounting for more than 50% of the observed VOCs. Therefore, constraints on vehicular emissions is the most effective strategy to control O3 pollution in Ji'nan.- Published
- 2022
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24. Simvastatin Improves Outcomes of Endotoxin-induced Coagulopathy by Regulating Intestinal Microenvironment.
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Xu M, Luo LL, Du MY, Tang L, Zhou J, Hu Y, and Mei H
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- Animals, Blood Coagulation Disorders chemically induced, Disease Models, Animal, Endotoxemia chemically induced, Endotoxins administration & dosage, Hydroxymethylglutaryl-CoA Reductase Inhibitors administration & dosage, Male, Mice, Mice, Inbred C57BL, Simvastatin administration & dosage, Blood Coagulation Disorders prevention & control, Endotoxemia prevention & control, Endotoxins pharmacology, Gastrointestinal Microbiome, Hydroxymethylglutaryl-CoA Reductase Inhibitors pharmacology, Intestinal Diseases prevention & control, Simvastatin pharmacology
- Abstract
Objective: The systemic inflammatory response is regarded as the major cause of endotoxin-induced coagulopathy, which is a strong predictor of mortality in patients with severe sepsis. Simvastatin plays an important role in reducing inflammation. In addition, the gut has long been hypothesized to be the "motor" of critical illness, driving or aggravating sepsis by the increased intestinal permeability and bacterial translocation. Whether simvastatin plays a role in severe endotoxin-induced coagulopathy through the gut is unclear., Methods: In this study, mice were administered 20 mg/kg simvastatin by gavage for 2 weeks and then intraperitoneally injected with 50 mg/kg endotoxin. Twelve h later, cytokine release, coagulation dysfunction, organ damage, and survival were assessed. Besides, the intestinal barrier, permeability, bacteria abundance, and translocation were evaluated., Results: We found that the severity of endotoxin-induced coagulopathy was significantly improved in simvastatin-pretreated mice, who showed attenuated depletion of coagulation factors and platelets, decreased plasminogen activator inhibitor-1 (PAI-1) expression, reduced organ fibrin deposition, and improved survival time. Also, simvastatin reduced epithelial apoptosis and improved intestinal barrier function by upregulating antimicrobial peptides, lysozyme, and mucins. Simvastatin increased Lactobacillales counts, while the lipopolysaccharide group showed increased Desulfovibrio and Mucispirillum, which can produce harmful toxins. Finally, the decreased intestinal permeability in the simvastatin group caused reduced bacterial translocation in the organs and blood, both in terms of quantity and species., Conclusion: Simvastatin improves the prognosis of severe endotoxemia, and the intestinal microenvironment participates in this process., (© 2022. The Author(s).)
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- 2022
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