2,393 results on '"Yu MAO"'
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2. Efficacy of various extent of resection on survival rates of patients with pilocytic astrocytoma: based on a large population
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Jun Su, Shanshan Guo, Zheyuan Chen, Yiming Han, Jingwang Yan, Qiyun Tang, Yu Mao, Haiqiang Zhang, Guojiang Hou, Gaopan Dong, Chao Guo, and Pengfei Yang
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Pilocytic astrocytoma ,Glioma ,Extent of resection (EOR) ,Overall survival ,SEER ,Medicine ,Science - Abstract
Abstract Pilocytic astrocytoma (PA) is classified as a Grade I benign neuroglial tumor. The extent of surgical resection is a critical factor influencing the prognosis for patients with PA. In prior researches of PA, the extent of surgical resection is generally categorized into GTR, STR and biopsy. In some researches on brain tumor surgeries, the extent of resection also includes GTL. There is no existing research specifically comparing the efficacy of GTR versus GTL in PA treatment. In this study, the data we used are from the SEER database. We categorized the extent of resection into GTL, GTR, STL, STR, biopsy, and no surgery based on SEER classification of surgical procedures, to investigate the impact of extent of resection on PA patient survival. A multivariate logistic regression model was utilized to acquire odds ratios (OR) for different extent of resection. Survival outcomes across different extent of resection (GTL, GTR, STL, STR, biopsy, no surgery) were assessed using Kaplan–Meier survival curve analysis, with curve comparisons conducted via log-rank tests. The impact of various risk factors on survival was assessed using the Cox proportional hazards model. The hazard ratio (HR) was employed to quantify the influence of one or more factors on overall survival throughout the follow-up period. Multivariate Cox analysis revealed that age, tumor location, extent of resection, as well as the application of radiotherapy and chemotherapy, all significantly impacted prognosis. Compared to GTL, GTR did not significantly increase the risk of mortality (HR 1.17; 95% CI 0.73–1.86, p = 0.5). Furthermore, there was no statistically significant difference between the Kaplan–Meier survival curves of the two groups (p = 0.18). We employed propensity score matching (PSM) to balance the differences in baseline characteristics of patients receiving chemotherapy or radiotherapy. A total of 4429 patients were included in this study. Age, diagnosis period, race, tumor size, and tumor location as influential on the extent of resection. Age, tumor location, extent of resection, and application of radiotherapy and chemotherapy influenced the survival of PA patients. The Kaplan–Meier survival curves revealed that the long-term survival rate for GTR is slightly higher than that for GTL. The PSM analysis revealed that the application of radiotherapy and chemotherapy was associated with the reduction of overall survival in PA patients. In conclusion, there was no significant difference in survival between GTR and GTL, so GTR with less damage was preferred. The application of radiotherapy and chemotherapy can reduce overall survival of patients with PA.
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- 2024
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3. Preliminary Study of a Degenerated Tricuspid Bioprosthetic Valve Implanted via Transcatheter Valve-in-Valve Implantation Guided by 3-Dimensional Printing
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Yu Mao, PhD, MD, Yanyan Ma, PhD, Mengen Zhai, PhD, MD, Lanlan Li, PhD, Ping Jin, PhD, MD, Yang Liu, PhD, MD, and Jian Yang, PhD, MD
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background: The procedures of transcatheter tricuspid valve-in-valve (TTViV) replacement are challenging, and the clinical outcomes are still unclear. Our goal was to report the short- and mid-term clinical outcomes of patients who underwent a TTViV implantation guided by 3-dimensional (3D) printing. Methods: A retrospective analysis was performed on 6 patients who had TTViV implantation from May 2021 to March 2022. The median age was 51 years (range: 18-71 years), and 50.0% of the patients were male. Imaging assessments and 3D printing were performed on all 6 patients before the procedures. The perioperative data were evaluated, and the patients were followed up. Results: Among the 6 patients, the etiologies of conditions affecting the tricuspid valves at baseline varied widely, including 1 case of Ebstein anomaly, 2 cases of infective endocarditis, 1 case of ventricular septal defect, and 2 cases of rheumatic heart disease. TTViV implantation was successfully performed in all 6 patients via the femoral vein approach; postoperative tricuspid regurgitation disappeared immediately, and the hemodynamic results were satisfactory. During the follow-up, all patients had significant improvement in symptoms and functional status. Conclusions: TTViV implantation for the treatment of degenerated tricuspid bioprostheses should be considered safe and effective. Multimodal imaging and 3D printing may provide effective guidance for conducting the procedure. Clinical Trial Registration: ClinicalTrials.gov Protocol Registration System (NCT02917980). Résumé: Contexte: Les interventions de remplacement par cathéter de la valve tricuspide avec la technique dite « valve-in-valve » (TTViV) sont délicates, et les résultats cliniques sont encore peu clairs. Notre objectif était de rapporter les résultats cliniques à court et à moyen terme obtenus chez des patients ayant subi une implantation TTViV guidée par l’impression en trois dimensions (3D). Méthodologie: Une analyse rétrospective portant sur six patients ayant subi une implantation TTViV entre mai 2021 et mars 2022 a été réalisée. L’âge médian était de 51 ans (min.-max. : 18-71 ans), et 50,0 % des patients étaient des hommes. Des examens d’imagerie et des impressions 3D ont été effectués avant l’intervention pour chacun des six patients. Les données périopératoires ont été analysées, et les patients ont fait l’objet d’un suivi. Résultats: Les affections initiales touchant la valve tricuspide chez les six patients avaient des causes variables, soit un cas de maladie d’Ebstein, deux cas d’endocardite infectieuse, un cas de défaut de communication interventriculaire, et deux cas de cardiopathie rhumatismale. Une implantation TTViV a été réalisée chez les six patients, par cathétérisme fémoral. La régurgitation tricuspide postopératoire a disparu immédiatement et les résultats hémodynamiques étaient satisfaisants. Durant le suivi, tous les patients ont obtenu une amélioration significative de leurs symptômes et de leur état fonctionnel. Conclusions: L’implantation TTViV pour le traitement d’une bioprothèse tricuspide dégénérée devrait être considérée comme sûre et efficace. L’imagerie multimodale et l’impression 3D peuvent fournir des directives efficaces pour la réalisation de l’intervention. Enregistrement des essais cliniques: ClinicalTrials.gov Protocol Registration System (NCT02917980).
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- 2024
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4. A novel dual-target Septin9 methylation assay for improved detection of early-stage colorectal cancer and high-grade intraepithelial neoplasia
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Youming Wu, Yongqing Tong, Haitao Zhang, Yun Li, Xu Zhu, Ming Li, Lili Qiu, Wenlan Liu, Siqing Mei, Yu Mao, Yanhua Cao, Caiyan Su, Wentao Yu, Junli Wang, Taizhong Wang, Zhongyuan Zhu, and De-Hua Yu
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Colorectal cancer (CRC) ,Methylation ,PCR ,Septin9 ,CpG-rich subregions ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Colorectal cancer (CRC) ranks as the third most common malignancies in the world, and periodic examination of the patient is advantageous in reducing the mortality of CRC. The first blood-based Septin9 gene methylation assay which recognized by the US FDA for CRC examination was Epi proColon. However, this assay was not broadly applied in the current clinical guideline because of its relatively lower sensitivity in the detection of early-stage CRC. Methods This study aimed at developing a new multiplex Septin9 methylation assay (ColonUSK) which simultaneously evaluates two CpG-rich subregions in the promoter of the Septin9 gene and an internal control in a single reaction. ColonUSK proved increased sensitivity, with a detection limit as low as 12pg of the positive DNA compared with the Septin9 assay targeting one CpG-rich subregion. 1366 subjects were prospectively recruited from four comprehensive hospitals in China in an opportunistic screening study for assessing its value in CRC detection. Blind testing was developed to evaluate ColonUSK in comparison with clinical examination using clinical gold standard such as colonoscopy. Results The assay demonstrates clinical sensitivity for diagnosing colorectal cancer (CRC) and advanced adenoma at rates of 77.34% and 25.26%, respectively. Furthermore, ColonUSK exhibits a high degree of specificity for non-CRC cases (95.95%) clinically. Significantly, the detection rate of cases in high-grade intraepithelial neoplasia increased to 54.29%. The value for the assay in the Kappa test was 0.76, showing a high degree of consistency between ColonUSK and clinical gold standard. Conclusions ColonUSK indicated moderate diagnostic value and could become a non-invasive detection way for CRC. The implementation of the ColonUSK assay has the capacity to markedly enhance CRC screening practices.
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- 2024
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5. Molecular weight insight into critical component contributing to reverse osmosis membrane fouling in wastewater reclamation
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Yuan Bai, Yinhu Wu, Ziwei Zhang, Yu Mao, Ruining Wang, Xin Tong, Song Xue, Haobin Wang, and Hongying Hu
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Water supply for domestic and industrial purposes ,TD201-500 - Abstract
Abstract Molecular weight (MW) of organics was one of the important factors influencing membrane fouling propensity. This study identified critical foulants of reverse osmosis (RO) membranes in reclaimed water by MW fractionation. MW > 10 kDa component was identified as the critical fouling contributor (CFC) in secondary effluent (SE), which accounted for only 13 ± 5% of dissolved organic carbon (DOC) but contributed to 86 ± 11% of flux decline. Throughout 12-month monitoring, SE and MW > 10 kDa component showed a similar fouling variation tendency: apparently higher fouling potential in winter and lower in summer, while MW 10 kDa component and glean valuable insights into RO fouling mechanisms of reclaimed water in practical application.
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- 2024
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6. The neural basis underlying the association between parents’ socioeconomic status and depressive symptoms among college students
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Yao Xiao, Xinting Jiang, Yuan Li, Yu Mao, and Duyi Zhou
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socioeconomic status ,depressive symptoms ,default mode network ,ventral attention network ,functional connectivity pattern ,Psychology ,BF1-990 - Abstract
ObjectiveDepression is increasingly prevalent among adolescents, with parents’ socioeconomic status (SES) serving as significant predictors. Understanding the link between parents’ SES and college students’ depressive symptoms is of paramount concern. However, the neural basis linking the association between parents’ SES and students’ depressive symptoms still remains to be explored. In order to address this issue, this study aims to investigate the relationship between parents’ SES and students’ depressive symptoms, and the role of brain functional connectivity (FC) pattern in this relationship.MethodsIn this study, a total of 363 college students without a history of mental or neurological disorders underwent depressive symptoms assessment and resting-state functional magnetic resonance imaging scans. We used a connectome-based predictive modeling (CPM) approach to identify neural biomarkers of depressive symptoms.ResultsThe results indicate that there is a negative correlation between parents’ SES and students’ depression tendencies (Father’s education level and SDS: r = −0.119, p
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- 2024
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7. Safety, immunogenicity and immune-persistence of a lyophilized human rabies vaccine (Vero cells) under Zagreb and Essen regimens: a randomized, open-label, controlled phase III clinical trial in healthy participants aged 10–60 years in China
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Zhenzhen Liang, Xu Chen, Bo Xing, Xiaosong Hu, Miaomiao Liu, Xinpei Zhang, Yugang Shen, Yan Wang, Yingping Chen, Huakun Lv, and Yu Mao
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lyophilized human rabies vaccine (Vero cells) ,Essen and Zagreb regimens ,immunogenicity ,safety ,non-inferiority (trials) ,Immunologic diseases. Allergy ,RC581-607 - Abstract
BackgroundRabies continues to be a significant global public health concern, particularly in the Asia region where it is associated with high mortality rate. The administration of effective vaccination is essential in preventing this potentially fatal viral infection. The objective of this study was to evaluate the immunogenicity and safety of two rabies vaccination schedules: the Zagreb (2–1–1) and Essen (1–1–1–1–1) regimens, in a cohort of healthy Chinese individuals aged 10-60 years.MethodsWe conducted a randomized, open-label, controlled, non-inferiority phase 3 trial from July 2021 to November 2022, enrolling a total of 1200 participants. Participants were randomly assigned to receive either the Zagreb or Essen vaccination regimen. The primary outcomes were safety, immunogenicity, and immune persistence. Safety was monitored through adverse event reporting, while immunogenicity was determined by measuring rabies-virus-neutralizing antibody (RVNA) concentrations using the rapid fluorescent focus inhibition test (RFFIT). Immune persistence was evaluated at 3, 6, and 12 months post-vaccination.ResultsThe two vaccination regimens exhibited comparable safety records, with mild and transient adverse events predominantly occurring within 0-3 days post-vaccination. The Zagreb regimen demonstrated non-inferiority in terms of seroconversion rates and geometric mean concentrations (GMCs) of antibodies compared to the Essen regimen at both 14 days post-first vaccination and 14 days post-full vaccination. Additionally, both groups displayed nearly 100% seropositivity rate at 3,6, and 12 months. No serious adverse events associated with vaccination were reported.ConclusionThe findings of this Phase 3 clinical trial provide compelling evidence that the Zagreb regimen is a feasible alternative when compared to the Essen regimen for rabies vaccination, offering a more pragmatic and cost-efficient approach to rabies prevention and control.Clinical trial registrationhttp://www.chinadrugtrials.org.cn, identifier CTR20210426.
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- 2024
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8. Acute angle-closure glaucoma before, during, and after the outbreak of COVID-19 in China
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Yu Mao, Yanqian Xie, Guoxing Li, Rongrong Le, Shuxia Xu, Peijuan Wang, Xiaojie Wang, Qi Zhang, Shaodan Zhang, and Yuanbo Liang
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Acute angle closure glaucoma ,Intraocular pressure ,COVID-19 ,Severe acute respiratory syndrome coronavirus disease 2 ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Objectives: Acute angle-closure glaucoma (AACG) is a major cause of irreversible and severe visual function loss. Robust rise in AACG was observed in the ophthalmic outpatient clinics concomitant with the outbreak of COVID-19 infection in China after the relaxing of “zero-COVID policy” in early December 2022. Here we compared the demographic and clinical profiles of patients with AACG before, during and after the COVID-19 outbreak. Underlying mechanisms were tentatively investigated. Methods: This is a retrospective comparative study. Consecutive cases with newly diagnosed AACGs in a tertiary eye hospital were retrospectively collected during December 17, 2022 to January 8, 2023. Data from the same period in 2018–2019 and 2019–2020, 2020–2021 and 2021–2022, and 2023–2024 were collected as pre-pandemic, pandemic-control, and post-pandemic control, respectively. For the patients in 2022–2023 outbreak group, COVID-19 infection was confirmed by reversed transcriptase-polymerase chain reaction or antibody test for severe acute respiratory syndrome coronavirus disease 2 (SARS-CoV-2) from nasopharyngeal swabs. Ocular parameters, serum electrolytes and coagulative parameters were compared between COVID-19 positive and negative AACGs in observational group. SARS-CoV-2 nucleic acid in the aqueous humor was detected. Results: A total of 106 AACG cases were diagnosed during the outbreak period in 2022–2023. In contrast, 18 (in 2018–2019) and 22 (in 2019–2020) cases were included during pre-pandemic period, and 21 (in 2023–2024) during the post-pandemic period. Only 13 and 4 newly onset AACG were included in 2020–2021 and 2021–2022 during the pandemic-control period, respectively. Younger age and higher proportion of bilateral involvement were detected in COVID-19 outbreak group than that of other groups (p = 0.034 and p = 0.080). Sixty-eight (64.2 %) patients in the outbreak group had a confirmed COVID-19 infection. Intervals between infection and AACG attack was 52 ± 85h (0-15d). Fifty-three patients (77.9 %) reported the applications of ibuprofen or other antipyretic medications and 25 (36.8 %) reported large volume water intake before AACG attack. COVID-19-positive AACG patients had higher level of D-dimer than their negative counterparts (1.13 ± 2.60 mg/L vs. 0.46 ± 0.43 mg/L, p = 0.083). No difference in IOP, serum electrolytes, and coagulative parameters other than D-dimer was observed between COVID-19 positive and negative cases. SARS-CoV-2 were negative in the aqueous humor from 14 COVID-19 positive and 8 negative patients. Conclusion: COVID-19 infection surged the onset of AACG in patients at risk. Mental stress, water intake, increased choroidal thickness due to SARS-CoV-2 induced ACE receptor activation, and hyper-coagulation, may contribute to the disease onset. Ocular involvement should not be ignored in both routine and new systemic emergent conditions.
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- 2024
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9. Postoperative rehabilitation and quality of life evaluation for transoral endoscopic thyroidectomy vestibular approach
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Yu Mao, Shiwei Zhou, Peng Wu, Wu Li, Hui Li, Zhiyuan Wang, Xibin Xia, Xiaohua Song, Mingming Wang, and Xiaowei Peng
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Transoral endoscopic thyroidectomy vestibular approach ,Quality of life ,Postoperative rehabilitation ,Cervical range of motion ,Questionnaire ,Medicine ,Science - Abstract
Abstract There are no targeted rehabilitation training modalities and assessment tools for patients after transoral endoscopic thyroidectomy vestibular approach (TOETVA). Herein, we develop a new assessment questionnaire and rehabilitation training modality and evaluate its safety and effectiveness. The THYCA-QoL-TOETVA questionnaire was compiled, and reliability and validity analyses were performed. Patients were divided into the new rehabilitation training group (N) or the conventional rehabilitation training group (C), and 1:1 propensity score matching (PSM) was performed after administering questionnaires to patients in both groups. Cervical range of motion (CROM) data were also measured and collected for statistical analysis. The questionnaire used in this study showed good expert authority, coordination, internal consistency, and questionnaire reliability. A total of 476 patients were included after PSM, and the questionnaire results showed that recovery and quality of life were better in the N group than in the C group (124.55 ± 8.171 vs. 122.94 ± 8.366, p = 0.026). Analysis of cervical spine mobility showed that rehabilitation was better in the N group compared to the C group at postoperative one month (flexion: 1.762°, extension: 4.720°, left lateral bending: 3.912°, right lateral bending: 4.061°, left axial rotation: 5.180°, right axial rotation: 5.199°, p value all of these
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- 2024
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10. Research on the influencing factors of adult learners' intent to use online education platforms based on expectation confirmation theory
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Guoqiang Pan, Yu Mao, Ziyuan Song, and Hui Nie
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Adult learners ,Online education platform ,Expectation confirmation model ,Expectation confirmation ,Continuance intention ,Medicine ,Science - Abstract
Abstract This study addresses the understanding gap concerning the factors that influence the continuous learning intention of adult learners on online education platforms. The uniqueness and significance of this study stem from its dual focus on both platform features, such as service quality, and course features, including perceived interactivity and added value, aspects often overlooked in previous research. Rooted in Expectation Confirmation Theory, the study constructs a comprehensive model to shed light on the complex interplay of these factors. Empirical evidence collected from a survey of 1592 adult learners robustly validates the effectiveness of this model. The findings of the study reveal that platform service quality, perceived interactivity, and perceived added value significantly amplify adult learners' expectation confirmation and perceived usefulness. These elements subsequently enhance learner satisfaction, fostering their ongoing intention to use online education platforms. These insights offer practical guidance for online education providers, emphasizing the necessity to enhance platform service quality and course features to meet adult learners' expectations and perceived usefulness. The study provides valuable perspectives for devising strategies to boost user satisfaction and stimulate continuous usage intention among adult learners in the intensely competitive online education market. This study enriches the literature by uncovering the relationships among platform features, course features, expectation confirmation, perceived usefulness, and continuous usage intention. By proposing a comprehensive model, this study provides a novel theoretical basis for understanding how platform and course features impact adult learners' ongoing intention to use online education platforms, thereby aiding the evolution and refinement of relevant theories.
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- 2024
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11. Research progress in laser additive manufacturing of aluminum alloys: Microstructure, defect, and properties
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Yu Mao, Hui Chen, and Jun Xiong
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Laser additive manufacturing ,Al alloys ,Microstructure ,Defect ,Mechanical properties ,Quality improvement ,Mining engineering. Metallurgy ,TN1-997 - Abstract
Laser additive manufacturing (LAM) has attracted significant interest in developing Al alloys due to its potential to fabricate structural components at low cost and high efficiency. Nevertheless, LAM Al alloys still suffer many issues, including heterogeneous microstructure, various defects, and poor mechanical properties, significantly hindering the advancement of LAM Al alloys. This article seeks to provide a comprehensive overview of the current advancements made in the field of LAM Al alloys and attempts to establish an in-depth relationship between microstructural characteristics, defects, and performances. Development status and limitations of LAM technologies are described, microstructural characteristics of Al alloys in LAM are introduced, mechanisms of formed defects and corresponding mitigation measures are discussed, and current quality improvement strategies are summarized. Following the research of previous work, this review will provide an outlook on overcoming the existing challenges and provide a helpful resource and reference for the development of LAM Al alloys.
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- 2024
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12. Prognostic value of right ventricular dysfunction in aortic regurgitation after transcatheter aortic valve replacement
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Yu Mao, Yang Liu, Mengen Zhai, Ping Jin, Haibo Zhang, Lai Wei, Xiaoke Shang, Yingqiang Guo, Xiangbin Pan, and Jian Yang
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aortic regurgitation ,transcatheter aortic valve replacement ,right ventricular dysfunction ,prognosis ,aortic valve ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
BackgroundAortic regurgitation (AR) may lead to right ventricular dysfunction (RVD), but the prognostic value of RVD in patients undergoing transcatheter aortic valve replacement (TAVR) remains unclear. Our goal was to evaluate the clinical implications, predictors and prognostic significance of RVD in patients with pure AR after TAVR.MethodsIn this multicentre prospective study, patients undergoing TAVR were included between January 2019 and April 2021. The patients were divided into four groups according to the results of transthoracic echocardiography pre- and post-TAVR. The primary end point was 2-year all-cause mortality.ResultsA total of 648 patients were divided into four groups: 325 patients (54.3%) in the no RVD group; 106 patients (17.7%) in the new-onset RVD group; 73 patients (12.2%) in the normalized RVD group; and 94 patients (15.7%) in the residual RVD group. At the 2-year follow-up, there were significant differences in all-cause mortality among the four groups (5.2%, 12.3%, 11.0% and 17.0%, respectively; p
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- 2024
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13. Study on chemical constituents and antioxidant activities of Dianthus caryophyllus L.
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Miaomiao Wang, Qiuyu Shen, Jianyu Pang, Yu Mao, Xiaofei Li, Yanxia Tao, Wenru Tang, Ruifen Sun, and Xuhong Zhou
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carnation ,flavonoids ,antioxidant activity ,metabolomics ,molecular docking ,Plant culture ,SB1-1110 - Abstract
ObjectiveCarnation is a plant that holds high value in terms of its edibility, medicinal properties, and ornamental appeal. Creating no sense he aim of this study was to evaluate the antioxidant and antitumor properties of extracts derived from various parts of the carnation plant. Metabolomics technology was employed to identify the primary chemical constituents.MethodsInitially, we measured the total phenolic and total flavonoid contents in carnation roots, stems, leaves, and flowers, followed by assessing the antioxidant and anti-tumor capabilities of each component using diverse experimental methods. Subsequently, UPLC-MS/MS was employed to identify metabolites in different parts of carnation and investigate their roles in antioxidant and anti-tumor activities.ResultsMention numerical value- for better underatnding- Results of the study indicated that the methanol extract obtained from carnation flowers and roots exhibited superior antioxidant capacity compared to that from the stems and leaves. This disparity may be attributed to the abundance of polyphenols, flavonoids, and antioxidants present in the flowers, including methyl ferulate and luteolin-4’-O-glucoside. Furthermore, the significant presence of the anthraquinone compound rhein-8-O-glucoside in carnation roots may contribute to their enhanced antioxidant properties. Ten distinct compounds were isolated and recognized in carnation flowers, with Isoorientin 2”-O-rhamnoside and Kurarinone demonstrating notable antioxidant activity and binding affinity to SOD1 and SOD3, as validated through antioxidant screening and molecular docking.ConclusionOverall, the findings from this study have expanded our knowledge of the phytochemical composition across different anatomical regions of the carnation plant, providing valuable insights for its holistic utilization.
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- 2024
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14. Tenascin-C modulates alveolarization in bronchopulmonary dysplasia
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Wei Liu, Yu Mao, Qianru Lv, Keyu Lu, Chunyu Yin, Rui Cheng, and Mingshun Zhang
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Bronchopulmonary dysplasia ,Extracellular matrix ,Tenascin-C ,Hyperoxia ,Epithelial cells ,ICAM-1 ,Pathology ,RB1-214 - Abstract
Abstract Bronchopulmonary dysplasia (BPD) is a chronic lung disease characterized by retarded alveolarization. Tenascin-C (TN-C), an extracellular matrix glycoprotein and soluble molecule, is involved in tissue morphogenesis. In the present study, we demonstrated that the level of TN-C in lung tissues was greater in a mouse model of BPD induced by 85% oxygen. TN-C deficiency, however, impaired alveolarization in the hyperoxia-induced BPD model. In contrast, a functional TN-C blocking antibody ameliorated alveolar dysplasia in BPD-like mice. Mechanistically, hyperoxia increased the soluble TN-C (sTN-C) released from respiratory epithelial cells. On one hand, low-dose sTN-C promoted lung epithelial cell proliferation and migration, which was mediated by ICAM-1. On the other hand, high-dose sTN-C hindered the proliferation and migration of epithelial cells. Overall, this study revealed that TN-C plays a dual role in lung alveolarization and that TN-C may be a target in BPD therapy.
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- 2024
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15. Hypoxia induced exosomal Circ-ZNF609 promotes pre-metastatic niche formation and cancer progression via miR-150-5p/VEGFA and HuR/ZO-1 axes in esophageal squamous cell carcinoma
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Yu Mao, Jiahao Wang, Yimin Wang, Zhanzhao Fu, Lixin Dong, and Jia Liu
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 ,Cytology ,QH573-671 - Abstract
Abstract Exosomes derived from cancer are regarded as significant mediators of cancer-host crosstalk. Hypoxia, on the other hand, is one of the essential characteristics of solid tumors. This research set out to discover how circulating exosomes from hypoxic esophageal squamous cell carcinoma (ESCC) contribute to the formation of metastatic niches and distant metastasis. First, we noticed that human umbilical vein endothelial cells (HUVECs) had their tight connections disrupted and the expression of proteins involved in angiogenesis boosted by ESCC hypoxic exosomes. Hypoxia significantly induced Circ-ZNF609 expression in exosomes from ESCC, which was then internalized by HUVECs, as determined by circular RNA screening. High Circ-ZNF609 expression in HUVECs facilitated angiogenesis and vascular permeability, thereby promoting pre-metastatic niche formation, and enhancing distant metastasis in vitro and in vivo. Exosomal Circ-ZNF609 activated vascular endothelial growth factor A (VEGFA) mechanistically by sponging miR-150-5p. Exosomal Circ-ZNF609 also interacted with HuR and inhibited HuR binding to ZO-1, Claudin-1, and Occludin mRNAs, thereby reducing their translation. Collectively, our findings identified an essential function for exosomal Circ-ZNF609 from ESCC cells, suggesting the potential therapeutic value of exosomes for ESCC patients.
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- 2024
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16. ITO-Based Electrically Tunable Metasurface for Active Control of Light Transmission
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Ruize Ma, Yu Mao, Peiyang Li, Dong Li, and Dandan Wen
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Metasurface ,Indium Tin Oxide ,Multipole expansion ,Active control spectrum ,Chemistry ,QD1-999 - Abstract
In recent years, the rapid development of dynamically tunable metasurfaces has provided a new avenue for flexible control of optical properties. This paper introduces a transmission-type electrically tunable metasurface, employing a series of subwavelength-scale silicon (Si) nanoring structures with an intermediate layer of Al2O3-ITO-Al2O3. This design allows the metasurface to induce strong Mie resonance when transverse electric (TE) waves are normally incident. When a bias voltage is applied, the interaction between light and matter is enhanced due to the formation of an electron accumulation layer at the ITO-Al2O3 interface, thereby altering the resonance characteristics of the metasurface. This design not only avoids the absorption loss of metal nanostructures and has a large modulation depth, but also shows compatibility with complementary metal oxide semiconductor (CMOS) technology.
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- 2024
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17. Corrigendum: Tracheal intubation in patients with Pierre Robin sequence: development, application, and clinical value based on a 3-dimensional printed simulator
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Yu Mao, Lu Liu, John Zhong, Pei Qin, Rui Ma, Mingzhang Zuo, Li Zhang, and Lifang Yang
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Pierre Robin sequence ,tracheal intubation ,3-dimensional printing ,simulator ,difficult airway ,Physiology ,QP1-981 - Published
- 2024
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18. Rapid segmentation of computed tomography angiography images of the aortic valve: the efficacy and clinical value of a deep learning algorithm
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Yu Mao, Guangyu Zhu, Tingting Yang, Ruediger Lange, Timothée Noterdaeme, Chenming Ma, and Jian Yang
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aortic valve ,transcatheter aortic valve replacement ,computed tomography angiography ,deep learning ,automatic segmentation ,Biotechnology ,TP248.13-248.65 - Abstract
ObjectivesThe goal of this study was to explore the reliability and clinical value of fast, accurate automatic segmentation of the aortic root based on a deep learning tool compared with computed tomography angiography.MethodsA deep learning tool for automatic 3-dimensional aortic root reconstruction, the CVPILOT system (TAVIMercy Data Technology Ltd., Nanjing, China), was trained and tested using computed tomography angiography scans collected from 183 patients undergoing transcatheter aortic valve replacement from January 2021 to December 2022. The quality of the reconstructed models was assessed using validation data sets and evaluated clinically by experts.ResultsThe segmentation of the ascending aorta and the left ventricle attained Dice similarity coefficients (DSC) of 0.9806/0.9711 and 0.9603/0.9643 for the training and validation sets, respectively. The leaflets had a DSC of 0.8049/0.7931, and the calcification had a DSC of 0.8814/0.8630. After 6 months of application, the system modeling time was reduced to 19.83 s.ConclusionFor patients undergoing transcatheter aortic valve replacement, the CVPILOT system facilitates clinical workflow. The reliable evaluation quality of the platform indicates broad clinical application prospects in the future.
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- 2024
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19. Identification and functional analysis of a rare variant of gene DHX37 in a patient with 46,XY disorders of sex development
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Wei Jiang, Jing Yu, Yu Mao, Yunman Tang, Li Cao, Qin Du, Jianan Li, and Jiyun Yang
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46,XY DSD ,DHX37 ,disorders of sex development ,WES ,Genetics ,QH426-470 - Abstract
Abstract Background 46,XY sex reversal 11 (SRXY11) [OMIM#273250] is characterized by genital ambiguity that may range from mild male genital defects to gonadal sex reversal in severe cases. DHX37 is an RNA helicase that has recently been reported as a cause of SRXY11. So far, a total of 21 variants in DHX37 have been reported in 58 cases with 46,XY disorders of sex development (DSD). Methods Whole exome sequencing (WES) was conducted to screen for variations in patients with 46,XY DSD. The subcellular localization of mutant DHX37 proteins was detected by immunofluorescence. And the levels of mutant DHX37 proteins were detected via Western blotting. Results A novel pathogenic variant of DHX37 was identified in a patient with 46,XY DSD c.2012G > C (p.Arg671Thr). Bioinformatics analysis showed that the protein function of the variant was impaired. Compared with the structure of the wild‐type DHX37 protein, the number of hydrogen bonds and interacting amino acids of the variant protein were changed to varying degrees. In vitro assays revealed that the variant had no significant effect on the intracellular localization of the protein but significantly reduced the expression level of the protein. Conclusions Our finding further expands the spectrum of the DHX37 variant and could assist in the molecular diagnosis of 46,XY DSD patients.
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- 2024
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20. Mapping the lymph node metastasis landscape: A bibliometric Odyssey of papillary thyroid carcinoma publications (2012–2022)
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Yu Mao, Huatao Zhou, Xiaoyong Wen, Zeyu Li, Mei Dai, and Shiwei Zhou
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Papillary thyroid carcinoma ,Lymph node ,Metastasis ,Bibliometric analysis ,CiteSpace ,VOSviewer ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Objective: Lymph node metastasis in papillary thyroid carcinoma (PTC) has become an area of great interest in the study of thyroid diseases. The aim of this study was to elucidate the research trends and impact of lymph node metastasis of PTC in the study of thyroid diseases through a comprehensive bibliometric analysis. Methods: We conducted an extensive bibliometric review of the literature on lymph node metastasis in PTC using the Web of Science Core Database (WOSCC), which included approximately 3292 publications from 2012 to 2022. Data analysis and visualization were performed, using advanced bibliometric tools including VOSviewer, CiteSpace, and bibliometrix R software packages. Results: A total of 3292 publications from 81 one countries were identified. The analysis showed a pattern of growth in the number of publications per year from 2012 to 2022, with China having the highest number of papers. Outstanding contributions were made by China, Korea, USA, Italy and Japan, with Thyroid being the most important journal. The author who published the most papers was Jingqiang Zhu. The institutions that published the most papers were Shanghai Jiao Tong University and Yonsei University. The analysis found that prognosis, recurrence, and ultrasound were the keywords with the highest frequency of occurrence in addition to those related to the title of this article. Conclusion: Our bibliometric analysis outlines the current state of research on lymph node metastasis in PTC, highlighting significant contributions, trends, and future research directions.
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- 2024
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21. Advances in Atherosclerosis Theranostics Harnessing Iron Oxide‐Based Nanoparticles
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Shi Wang, Hongliang He, Yu Mao, Yu Zhang, and Ning Gu
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atherosclerosis ,iron oxide nanoparticles ,nanomedicines ,theranostics ,Science - Abstract
Abstract Atherosclerosis, a multifaceted chronic inflammatory disease, has a profound impact on cardiovascular health. However, the critical limitations of atherosclerosis management include the delayed detection of advanced stages, the intricate assessment of plaque stability, and the absence of efficacious therapeutic strategies. Nanotheranostic based on nanotechnology offers a novel paradigm for addressing these challenges by amalgamating advanced imaging capabilities with targeted therapeutic interventions. Meanwhile, iron oxide nanoparticles have emerged as compelling candidates for theranostic applications in atherosclerosis due to their magnetic resonance imaging capability and biosafety. This review delineates the current state and prospects of iron oxide nanoparticle‐based nanotheranostics in the realm of atherosclerosis, including pivotal aspects of atherosclerosis development, the pertinent targeting strategies involved in disease pathogenesis, and the diagnostic and therapeutic roles of iron oxide nanoparticles. Furthermore, this review provides a comprehensive overview of theranostic nanomedicine approaches employing iron oxide nanoparticles, encompassing chemical therapy, physical stimulation therapy, and biological therapy. Finally, this review proposes and discusses the challenges and prospects associated with translating these innovative strategies into clinically viable anti‐atherosclerosis interventions. In conclusion, this review offers new insights into the future of atherosclerosis theranostic, showcasing the remarkable potential of iron oxide‐based nanoparticles as versatile tools in the battle against atherosclerosis.
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- 2024
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22. Exploring the roles and potential therapeutic strategies of inflammation and metabolism in the pathogenesis of vitiligo: a mendelian randomization and bioinformatics-based investigation
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Ming-jie He, De-long Ran, Zhan-yi Zhang, De-shuang Fu, Qing He, Han-Yin Zhang, Yu Mao, Peng-Yuan Zhao, Guang-wen Yin, and Jiang-an Zhang
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vitiligo ,inflammation ,metabolism ,mendelian randomization ,bioinformatics ,therapeutic strategies ,Genetics ,QH426-470 - Abstract
Introduction:Vitiligo, a common autoimmune acquired pigmentary skin disorder, poses challenges due to its unclear pathogenesis. Evidence suggests inflammation and metabolism’s pivotal roles in its onset and progression. This study aims to elucidate the causal relationships between vitiligo and inflammatory proteins, immune cells, and metabolites, exploring bidirectional associations and potential drug targets.Methods:Mendelian Randomization (MR) analysis encompassed 4,907 plasma proteins, 91 inflammatory proteins, 731 immune cell features, and 1400 metabolites. Bioinformatics analysis included Protein-Protein Interaction (PPI) network construction, Gene Ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. Subnetwork discovery and hub protein identification utilized the Molecular Complex Detection (MCODE) plugin. Colocalization analysis and drug target exploration, including molecular docking validation, were performed.Results:MR analysis identified 49 proteins, 39 immune cell features, and 59 metabolites causally related to vitiligo. Bioinformatics analysis revealed significant involvement in PPI, GO enrichment, and KEGG pathways. Subnetwork analysis identified six central proteins, with Interferon Regulatory Factor 3 (IRF3) exhibiting strong colocalization evidence. Molecular docking validated Piceatannol’s binding to IRF3, indicating a stable interaction.Conclusion:This study comprehensively elucidates inflammation, immune response, and metabolism’s intricate involvement in vitiligo pathogenesis. Identified proteins and pathways offer potential therapeutic targets, with IRF3 emerging as a promising candidate. These findings deepen our understanding of vitiligo’s etiology, informing future research and drug development endeavors.
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- 2024
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23. Function and mechanism of exogenous AGR2 in colorectal cancer cells
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Chao Zheng, Yu Mao, Jianping Ye, Miaolong Zhang, and Yongfeng Chen
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AGR2 ,Colorectal cancer ,Migration ,Invasion ,EMT ,AKT/β-catenin signal pathway ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Background: Anterior gradient 2 (AGR2) is highly enriched in several malignant tumors and can boost tumor metastasis. Whereas, AGR2 role in colorectal cancer (CRC) is not clear. Methods: AGR2 expression in the GEPIA database was studied, and the results were confirmed by Western blot in CRC cell lines (SW480, SW620, and HT-29). The impact of AGR2 on the multiplication, migration, invasion and EMT of CRC cells were studied by CCK-8 assay, as well as clone formation, wound healing and transwell assays. The protein concent related to the AKT/β-catenin signaling pathway were accessed via Western blot. Results: AGR2 concent in CRC tissues was notablely boosted versus normal colorectal tissues. Exogenous AGR2 boosted the multiplication of CRC cells. In addition, exogenous AGR2 induced EMT, which demonstrated that ZEB1, N-cadherin, Vimentin, Slug, Snail protein concent boosted and E-cadherin protein abated in CRC cells. In terms of mechanism, exogenous AGR2 upgulated p-AKT/AKT, p-GSK3β/GSK3β and β-catenin concent. Exogenous AGR2 combined with AKT agonist IGF- Ⅰ can further enhance the multiplication, migration and invasion of CRC cells. Conclusion: Exogenous AGR2 enhances the multiplication of CRC cells and induces EMT process, the mechanism of which is related to AKT/β-catenin signal pathway.
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- 2024
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24. Real-time detection algorithm of tunnel cracks based on GRU-CNN
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Guojun Wen, Xiaofeng Gao, Yu Mao, and Siyi Cheng
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tunnel crack ,real-time detection ,classification detection ,frequency domain ,Geology ,QE1-996.5 ,Engineering geology. Rock mechanics. Soil mechanics. Underground construction ,TA703-712 - Abstract
Objective Tunnel cracks seriously damage the corresponding life time and traffic safety. However, traditional manual detections cannot efficiently and accurately identify a large number of cracks in long tunnels.This paper proposes a real-time detection algorithm for tunnel surface cracks. Methods It innovatively applies the Gate Recurrent Unit (GRU) model for text learning and signal analysis to image classification, improving detection speed and ensuring detection accuracy of tunnel cracks. To enhance training efficiency, the cracks are preprocessed and converted into the frequency domain to extract the key information of tunnel cracks, and the matrix is reconstructed into one-dimensional vectors. Then, one-dimensional convolutional neural network is used to extract the vector depth feature, and recurrent neural networks can learn corresponding sequential dependencies to realize tunnel cracks detection. Results Test results show that this model can reduce the number of training parameters and hardware configuration requirements. At the same time, the detection accuracy can reach 98.8%, and the detection speed for single image can reach in 2.1 s. Comparing with the mainstream classification detection algorithms, its accuracy remains unchanged, with significantly improvements of both training efficiency and prediction rate respectively. Conclusion Finally, a detection framework is developed for large-scale tunnel cracks to extract corresponding crack information effectively.
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- 2023
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25. Online unsupervised generative learning framework based radar jamming waveform design
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Yuzheng Sun, Shuaige Gong, Yu Mao, Yang‐Yang Dong, and Chun‐Xi Dong
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adaptive signal processing ,radar jamming ,waveform generators ,Telecommunication ,TK5101-6720 - Abstract
Abstract The jamming effect on radar is dominated by the design of the jamming waveform directly. Traditional jamming waveforms are generated using the template‐based method and are not environmentally resilient. Without the precise radar centre frequency support, using the direct guidance of the radar signal power spectrum density (PSD), a novel jamming waveform design method with an online unsupervised generative learning framework is proposed. The proposed framework consists of two modules: the waveform online generation module and the waveform unsupervised optimisation module. For the waveform online generation module, the well‐designed neural network (NN) is used to generate the jamming waveform. While for the waveform unsupervised iterative optimisation module, two loss functions are developed as two learning tasks to guide back‐propagation online. Given transmit power, the jamming PSD is designed adaptively to focus on the radar band and fit the radar PSD well, which improves the receiver in‐band jamming‐to‐signal ratio (JSR). It is worth noting that NN is end‐to‐end trained online without extensive prior training data. The framework can generate jamming waveforms within reasonable physical parameter ranges, and numerical experiments have shown that the designed jamming waveform performed better jamming effects on radar target detection in comparison with the traditional one.
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- 2023
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26. Transapical Transcatheter Aortic Valve Replacement Under 3-Dimensional Guidance to Treat Pure Aortic Regurgitation in Patients with a Large Aortic Annulus
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Yu Mao, Yang Liu, Mengen Zhai, Ping Jin, Lai Wei, Haibo Zhang, Jian Liu, Xiangbin Pan, Yingqiang Guo, and Jian Yang
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aortic regurgitation ,transcatheter aortic valve replacement ,large annulus ,3-dimensional printing ,extra oversizing ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background: Transcatheter aortic valve replacement (TAVR) is a challenge for patients with aortic regurgitation (AR) and a large annulus. Our goal was to evaluate the clinical outcomes and predictors of transapical TAVR in AR patients with a large annulus and noncalcification and the feasibility and safety of 3-dimensional printing (3DP) in the preprocedural simulation. Methods: Patients with a large annulus (diameter >29 mm) were enrolled and divided into the simulation (n = 43) and the nonsimulation group (n = 82). Surgeons used the specific 3DP model of the simulation group to simulate the main steps before the procedure and to refit the transcatheter heart valve (THV) according to the simulated results. Results: The average annular diameter of the overall cohort was 29.8 ± 0.7 mm. Compared with the nonsimulation group, the simulation group used a higher proportion of extra oversizing for THVs (97.6% vs. 85.4%, p = 0.013), and the coaxiality performance was better (9.7 ± 3.9° vs. 12.7 ± 3.8°, p < 0.001). Both THV displacement and ≥ mild paravalvular leakage (PVL) occurred only in the nonsimulation group (9.8% vs. 0, p < 0.001; 9.8% vs. 0, p < 0.001). Multivariate regression analysis showed that extra oversizing, coaxial angle and annulus diameter were independent predictors of THV displacement and ≥ mild PVL, respectively. Conclusions: Based on 3DP guidance, transapical TAVR using extra oversizing was safe and feasible for patients with noncalcified AR with a large annulus. Extra oversizing and coaxial angle were predictors of postprocedural THV displacement and ≥ mild PVL in such patients.
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- 2024
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27. Use of CT in a case of sclerosing pneumocytoma in pulmonary sequestration
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Chao Chen, Yu Mao, Yang Yin, and Cheng Wang
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CT ,Pulmonary sequestration (PS) ,Sclerosing pneumocytoma (SP) ,Surgery ,RD1-811 - Published
- 2024
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28. Aptamers for mycotoxin recognition in food: Recent advances and future considerations
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Peng Fang, Hao Qu, Yu Mao, and Lei Zheng
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Aptamer ,SELEX ,In vitro selection ,Mycotoxin ,Food safety ,Agriculture (General) ,S1-972 ,Biochemistry ,QD415-436 ,Chemistry ,QD1-999 - Abstract
The contamination of mycotoxin in food has posed a serious threat to human health and safety. Accurate detection of mycotoxins provides a strong guarantee for food safety. Aptamers with excellent recognition capacity to mycotoxins have gained growing attention because of their high binding affinity, high specificity and low cost. They are commonly generated by an in vitro selection procedure called SELEX. However, the existing performance of mycotoxin aptamers are not good enough in complex food matrix, and the success rate of SELEX still need to be improved. The employment of efficient SELEX strategies for the generation of better mycotoxin aptamers is significantly important. This article has reviewed different SELEX approaches conducted for mycotoxin aptamer generation. Furthermore, the properties of various mycotoxin aptamers have been discussed. Finally, challenges and future considerations for mycotoxin aptamer selection are summarized, and their strengths and limitations in food safety application are highlighted.
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- 2023
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29. Surface passivation for highly active, selective, stable, and scalable CO2 electroreduction
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Jiexin Zhu, Jiantao Li, Ruihu Lu, Ruohan Yu, Shiyong Zhao, Chengbo Li, Lei Lv, Lixue Xia, Xingbao Chen, Wenwei Cai, Jiashen Meng, Wei Zhang, Xuelei Pan, Xufeng Hong, Yuhang Dai, Yu Mao, Jiong Li, Liang Zhou, Guanjie He, Quanquan Pang, Yan Zhao, Chuan Xia, Ziyun Wang, Liming Dai, and Liqiang Mai
- Subjects
Science - Abstract
Abstract Electrochemical conversion of CO2 to formic acid using Bismuth catalysts is one the most promising pathways for industrialization. However, it is still difficult to achieve high formic acid production at wide voltage intervals and industrial current densities because the Bi catalysts are often poisoned by oxygenated species. Herein, we report a Bi3S2 nanowire-ascorbic acid hybrid catalyst that simultaneously improves formic acid selectivity, activity, and stability at high applied voltages. Specifically, a more than 95% faraday efficiency was achieved for the formate formation over a wide potential range above 1.0 V and at ampere-level current densities. The observed excellent catalytic performance was attributable to a unique reconstruction mechanism to form more defective sites while the ascorbic acid layer further stabilized the defective sites by trapping the poisoning hydroxyl groups. When used in an all-solid-state reactor system, the newly developed catalyst achieved efficient production of pure formic acid over 120 hours at 50 mA cm–2 (200 mA cell current).
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- 2023
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30. Investigation on small molecule-aptamer dissociation equilibria based on antisense displacement probe
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Lei Wang, Lili Yao, Qihui Ma, Yu Mao, Hao Qu, and Lei Zheng
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Aptamer ,Small molecule ,Dissociation equilibria ,Antisense displacement probe ,Le Chatelier's principle ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Food safety is a major issue to public health and have attracted global attention. Fast, sensitive, and reliable detection methods for food hazardous substances is highly desirable. Aptamers which can bind to the target molecules with high affinity and specificity represent an attractive tool for the recognition of food hazardous substances, which play an important role in the development and application of new food safety detection technology. But current assays for characterizing small molecule-aptamer binding are limited by either the mass sensitivity or the size differentiation ability. Herein, we proposed a comprehensive method for assessing the dissociation equilibria of small molecule-aptamer, which is immobilized-free under ambient conditions. The design employs the Le Chatelier's principle and could be used to effectively measure small molecule-aptamer interactions. ATP binding aptamer and anti-aflatoxin B1 aptamer were used as the model system to determine their affinity, in which their dissociation equilibria measurements are in excellent close to their previous work. Due to the simplicity and sensitivity of this new method, we believe that it could be recommended as an effective tool for characterizing small molecule-aptamer interactions and promote the further application of small molecular aptamer in food safety.
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- 2023
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31. A microglial activation cascade across cortical regions underlies secondary mechanical hypersensitivity to amputation
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Hong-Rui Wei, Lan Tang, Xin-Lu Yang, Chang-Mao Chen, Le-Xian Li, Yu Mao, Di Wang, Fang Kang, Sen Qun, Zhi Zhang, Peng Cao, and Yan Jin
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CP: Neuroscience ,Biology (General) ,QH301-705.5 - Abstract
Summary: Neural mechanisms underlying amputation-related secondary pain are unclear. Using in vivo two-photon imaging, three-dimensional reconstruction, and fiber photometry recording, we show that a microglial activation cascade from the primary somatosensory cortex of forelimb (S1FL) to the primary somatosensory cortex of hindlimb (S1HL) mediates the disinhibition and subsequent hyperexcitation of glutamatergic neurons in the S1HL (S1HLGlu), which then drives secondary mechanical hypersensitivity development in ipsilateral hindpaws of mice with forepaw amputation. Forepaw amputation induces rapid S1FL microglial activation that further activates S1HL microglia via the CCL2-CCR2 signaling pathway. Increased engulfment of GABAergic presynapses by activated microglia stimulates S1HLGlu neuronal activity, ultimately leading to secondary mechanical hypersensitivity of hindpaws. It is widely believed direct neuronal projection drives interactions between distinct brain regions to prime specific behaviors. Our study reveals microglial interactions spanning different subregions of the somatosensory cortex to drive a maladaptive neuronal response underlying secondary mechanical hypersensitivity at non-injured sites.
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- 2024
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32. Tracheal intubation in patients with Pierre Robin sequence: development, application, and clinical value based on a 3-dimensional printed simulator
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Yu Mao, Lu Liu, John Zhong, Pei Qin, Rui Ma, Mingzhang Zuo, Li Zhang, and Lifang Yang
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Pierre Robin sequence ,tracheal intubation ,3-dimensional printing ,simulator ,difficult airway ,Physiology ,QP1-981 - Abstract
Background: The main clinical manifestations of patients with Pierre Robin sequence (PRS) include micrognathia, the glossoptosis and dyspnoea. The difficulty of tracheal intubation (TI) in such patients is increased.Objective: The purpose of the study was to evaluate the reliability and efficacy of the PRS simulator.Methods: A PRS simulator was developed by using 3-dimensional (3D) printing technology under computer-aided design. A total of 12 anaesthesiologists each trained 5 times for TI on the PRS Training Simulator-1 and recorded the simulation time. After the training, they were randomly divided into three groups with a total of 12 nontrained anaesthesiologists, and the simulation was completed on PRS Simulator-2, 3 and 4. The simulation time was recorded, and the performance was evaluated by three chief anaesthesiologists. Then, all 24 anaesthesiologists completed the questionnaire.Results: A PRS simulator developed by 3D printing was used to simulate the important aspects of TI. The average number of years worked was 6.3 ± 3.1 years, and 66.7% were female. The time for the 12 anaesthesiologists to complete the training gradually decreased (p < 0.01). Compared with the trained anaesthesiologists, the simulation time of TI in the nontrained anaesthesiologists was much longer (all p < 0.01). In addition, the simulation performance of the trained anaesthesiologists was relatively better (all p < 0.01).Conclusion: The reliability and efficacy of the PRS simulator is herein preliminarily validated, and it has potential to become a teaching and training tool for anaesthesiologists.
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- 2024
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33. Single-Round Circular Aptamer Discovery Using Bioinspired Magnetosome-Like Magnetic Chain Cross-Linked Graphene Oxide
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Lili Yao, Junmei Feng, Yuefei Zhou, Shengjie Gao, Shuai Liu, Hao Qu, Yu Mao, and Lei Zheng
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Science - Abstract
Circular aptamers are promising candidates for analytical and therapeutic applications due to their enhanced biological and structural stability. However, the process of circular aptamer selection remains a great challenge, as it requires multiple rounds of binding–separation–amplification that involves issues with nonspecific binding and amplification bias. Here, we develop a highly practical solution for reliable selection of circular aptamers in a single round based on magnetosome-like magnetic chain cross-linked graphene oxide (separation efficiency ≈ 105). High-affinity aptamer candidates can be rapidly selected from a preenriched circular DNA library, while low-affinity candidates are effectively adsorbed and separated by magnetosome-like magnetic chain cross-linked graphene oxide. With lipopolysaccharide as a representative model, the single-round selected lipopolysaccharide circular aptamer has been identified to have a high binding affinity with a Kd value of low to nanomolar range. Using this method, circular aptamers for protein and small-molecule targets were also successfully generated. We envision that this approach will accelerate the discovery of various new circular aptamers and open up a new avenue for analytical and therapeutic studies.
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- 2024
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34. Assessing ascertainment bias in atrial fibrillation across US minority groups.
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Lars Hulstaert, Amelia Boehme, Kaitlin Hood, Jennifer Hayden, Clark Jackson, Astra Toyip, Hans Verstraete, Yu Mao, and Khaled Sarsour
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Medicine ,Science - Abstract
The aim of this study is to define atrial fibrillation (AF) prevalence and incidence rates across minority groups in the United States (US), to aid in diversity enrollment target setting for randomized controlled trials. In AF, US minority groups have lower clinically detected prevalence compared to the non-Hispanic or Latino White (NHW) population. We assess the impact of ascertainment bias on AF prevalence estimates. We analyzed data from adults in Optum's de-identified Clinformatics® Data Mart Database from 2017-2020 in a cohort study. Presence of AF at baseline was identified from inpatient and/or outpatient encounters claims using validated ICD-10-CM diagnosis algorithms. AF incidence and prevalence rates were determined both in the overall population, as well as in a population with a recent stroke event, where monitoring for AF is assumed. Differences in prevalence across cohorts were assessed to determine if ascertainment bias contributes to the variation in AF prevalence across US minority groups. The period prevalence was respectively 4.9%, 3.2%, 2.1% and 5.9% in the Black or African American, Asian, Hispanic or Latino, and NHW population. In patients with recent ischemic stroke, the proportion with AF was 32.2%, 24.3%, 25%, and 24.5%, respectively. The prevalence of AF among the stroke population was approximately 7 to 10 times higher than the prevalence among the overall population for the Asian and Hispanic or Latino population, compared to approximately 5 times higher for NHW patients. The relative AF prevalence difference of the Asian and Hispanic or Latino population with the NHW population narrowed from respectively, -46% and -65%, to -22% and -24%. The study findings align with previous observational studies, revealing lower incidence and prevalence rates of AF in US minority groups. Prevalence estimates of the adult population, when routine clinical practice is assumed, exhibit higher prevalence differences compared to settings in which monitoring for AF is assumed, particularly among Asian and Hispanic or Latino subgroups.
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- 2024
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35. Charting the course of ferroptosis research in lung cancer: Insights from a bibliometric analysis
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Huatao Zhou, Yu Mao, and Zijing Zhou
- Subjects
Ferroptosis ,Lung cancer ,Bibliometric analysis ,CiteSpace ,VOSviewer ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Background: Lung cancer, a major cause of cancer-related mortality globally, necessitates innovative therapeutic strategies. Ferroptosis, an iron-dependent, non-apoptotic cell death form, has risen as a crucial therapeutic target. This study aims to conduct a comprehensive bibliometric analysis of ferroptosis in lung cancer, highlighting principal research trends, influential publications, and prospective future directions. Methods: This study utilized bibliometric tools such as VOSviewer, CiteSpace, and the R package “bibliometrix” to thoroughly analyze 488 articles on ferroptosis in lung cancer from 2014 to October 2023. Data from the Web of Science Core Collection were analyzed to determine spatial and temporal trends, identify prominent authors and seminal works, and uncover emerging hotspots and frontiers of the field. The literature was segmented into coherent thematic groups through cluster analysis. Results: Our analysis revealed a significant exponential growth in publications from 2019 to 2023, mirroring the increasing interest in this area. Predominantly, the influential research was published in high-impact journals, with Scott J. Dixon's works being the most cited. The study identified four primary research themes: Lung Cancer Specifics; Biomarker Identification and Prognosis; Cellular Death Mechanisms and Metabolic Regulation; and Cancer Stem Cells and Therapeutic Resistance. Recent studies have increasingly focused on areas such as the immune microenvironment and mitochondrial dysfunction. Furthermore, the analysis highlighted the field's global collaborative nature, with significant contributions from China, the USA, and Germany. Conclusion: This extensive bibliometric analysis emphasizes the growing importance of ferroptosis in lung cancer research. The identified themes and emerging topics underline the field's complexity and suggest new research avenues. This study promotes a holistic research approach, advocating for the exploration of innovative ferroptosis-targeting therapies that could revolutionize lung cancer treatment.
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- 2024
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36. Molecular mechanism of electroacupuncture for improving perioperative complications with the guidance of enhanced recovery after surgery
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Yu Mao and Lifang Yang
- Subjects
electroacupuncture ,enhanced recovery after surgery ,perioperative period ,molecular mechanism ,Other systems of medicine ,RZ201-999 - Abstract
Enhanced recovery after surgery (ERAS) is a recommended surgical strategy at present, the core content is to reduce perioperative stress response and postoperative complications through perioperative multi-mode analgesia and intensive surgery. Electroacupuncture (EA) has been widely used in various clinical applications, and its efficacy and safety have been fully proven. The application of acupuncture in ERAS will have an important impact on rehabilitation research and development. In this review, the molecular mechanism of EA in ERAS are summed up from promoting perioperative efficacy to improving postoperative immune status. The combination of EA and ERAS may better promote the recovery of patients and the development of rehabilitation.
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- 2023
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37. Lactobacillus paracasei L9 affects disease progression in experimental autoimmune neuritis by regulating intestinal flora structure and arginine metabolism
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Yuting Meng, Xiangjie Qiu, Zhongxiang Tang, Yu Mao, and Yurong Tan
- Subjects
Experimental autoimmune neuritis ,Lactobacillus paracasei L9 ,Arginine and proline metabolism ,Therapy ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background Autoimmune neuropathies are common peripheral nervous system (PNS) disorders. Environmental influences and dietary components are known to affect the course of autoimmune diseases. Intestinal microorganisms can be dynamically regulated through diet, and this study combines intestinal microorganisms with diseases to open up new therapeutic ideas. Methods In Lewis rats, a model of EAN was established with P0 peptide, Lactobacillus were used as treatment, serum T-cell ratio, inflammatory factors, sciatic neuropathological changes, and pathological inflammatory effects on intestinal mucosa were detected, and fecal metabolomics and 16 s microbiome analysis were performed to further explore the mechanism. Results In the EAN rat model, Lactobacillus paracasei L9 (LP) could dynamically regulate the CD4+/CD8+T balance in serum, reduce serum IL-1, IL-6 and TNF-α expression levels, improve sciatic nerve demyelination and inflammatory infiltration, and reduce nervous system score. In the rat model of EAN, intestinal mucosa was damaged. Occludin and ZO-1 were downregulated. IL-1, TNF-α and Reg3γ were upregulated. LP gavage induced intestinal mucosa recovery; occludin and ZO-1 upregulation; IL-1, TNF-α and Reg3γ downregulation. Finally, metabolomics and 16 s microbiome analysis were performed, and differential metabolites were enriched with an important metabolic pathway, arginine and proline metabolism. Conclusion LP improved EAN in rats by influencing intestinal community and the lysine and proline metabolism.
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- 2023
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38. Molecular mechanisms of electropuncture in cerebrovascular protection during enhanced recovery after surgery period
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Yu Mao and Lifang Yang
- Subjects
enhanced recovery after surgery ,electroacupuncture ,cerebrovascular protection ,molecular mechanism ,traditional Chinese medicine ,Anesthesiology ,RD78.3-87.3 - Abstract
The core intent of enhanced recovery after surgery (ERAS) is to alleviate the perioperative stress response and postoperative complications through perioperative multimodal analgesia and intensive surgery. Previous studies have demonstrated that multiple molecular mechanisms function in improving ischemic stroke, reversing the process of ischemia reperfusion, relieving intracerebral hemorrhage and traumatic brain injury. Meanwhile, electroacupuncture (EA) has been validated with regard to its efficacy and safety in perioperative treatment, which has an important impact on rehabilitation research and ERAS development. Currently, studies have showed that EA provides a new approach for cerebrovascular protection by activating various molecular mechanisms. In this review, we display the recent progress of main molecular mechanisms of EA in ERAS from the perspectives of protecting cerebrovascular functions, in order to provide guidance for the clinical treatment.
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- 2023
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39. Prognostic value of preoperative albumin-to-alkaline phosphatase ratio in patients with surgically treated urological cancer: a systematic review and meta-analysis
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Shangqing Ren, Han Wang, Bo Yang, Yang Zheng, Yong Ou, Yige Bao, Yu Mao, and Yunlin Feng
- Subjects
albumin-to-alkaline phosphatase ratio ,urological cancer ,prognostic value ,meta-analysis ,surgical ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
ObjectiveA novel albumin-to-alkaline phosphatase ratio (AAPR) is associated with the prognosis of several cancers. In the present study, we evaluate the prognostic significance of perioperative AAPR in urological cancers.MethodRelevant studies were searched comprehensively from CNKI, PubMed, Embase and Web of Science up to March 2023. The pooled hazard ratio (HR) and 95% confidence interval (CI) were extracted from each study to evaluate the prognostic value of perioperative AAPR in patients with surgically treated urological cancers.ResultsA total of 8 studies consisting of 3,271 patients were included in the final results. A low AAPR was significantly associated with a worse OS (HR=2.21; P
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- 2023
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40. Extracellular magnetic labeling of biomimetic hydrogel-induced human mesenchymal stem cell spheroids with ferumoxytol for MRI tracking
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Sen Yan, Ke Hu, Miao Zhang, Jingyi Sheng, Xueqin Xu, Shijia Tang, Yan Li, Sheng Yang, Guangxiang Si, Yu Mao, Yi Zhang, Feimin Zhang, and Ning Gu
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Superparamagnetic iron oxide nanoparticles ,MSC labeling ,Mechanically tunable biomimetic hydrogel ,Spheroids ,MRI tracking ,Materials of engineering and construction. Mechanics of materials ,TA401-492 ,Biology (General) ,QH301-705.5 - Abstract
Labeling of mesenchymal stem cells (MSCs) with superparamagnetic iron oxide nanoparticles (SPIONs) has emerged as a potential method for magnetic resonance imaging (MRI) tracking of transplanted cells in tissue repair studies and clinical trials. Labeling of MSCs using clinically approved SPIONs (ferumoxytol) requires the use of transfection reagents or magnetic field, which largely limits their clinical application. To overcome this obstacle, we established a novel and highly effective method for magnetic labeling of MSC spheroids using ferumoxytol. Unlike conventional methods, ferumoxytol labeling was done in the formation of a mechanically tunable biomimetic hydrogel-induced MSC spheroids. Moreover, the labeled MSC spheroids exhibited strong MRI T2 signals and good biosafety. Strikingly, the encapsulated ferumoxytol was localized in the extracellular matrix (ECM) of the spheroids instead of the cytoplasm, minimizing the cytotoxicity of ferumoxytol and maintaining the viability and stemness properties of biomimetic hydrogel-induced MSC spheroids. This demonstrates the potential of this method for post-transplantation MRI tracking in the clinic.
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- 2023
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41. Development of a nomogram based on radiomics and semantic features for predicting chromosome 7 gain/chromosome 10 loss in IDH wild-type histologically low-grade gliomas
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Xin Kong, Yu Mao, Fengjun Xi, Yan Li, Yuqi Luo, and Jun Ma
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machine learning ,radiomics ,glioma ,nomogram ,linear discriminant analysis ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
PurposeTo predict chromosome 7 gain and chromosome 10 loss (+7/-10) in IDH wild-type (IDH-wt) histologically low-grade gliomas (LGG) by machine learning models based on MRI radiomics and semantic features.MethodsA total of 122 patients diagnosed as IDH-wt histologically LGG were retrospectively included in this study. The patients were randomly divided into a training group and a test group in a ratio of 7:3. The radiomics features were extracted from axial T1WI, T2WI, FLAIR and CET1 sequences, respectively. The distance correlation (DC) and least absolute shrinkage and selection operator (LASSO) were used to select the radiomics signatures. Three machine learning algorithms including neural network (NN), support vector machine (SVM), and linear discriminant analysis (LDA) were used to construct radiomics models. In addition, a nomogram was developed by combining the optimal radiomics signature with clinical risk factors, and the potential clinical utility of the nomogram was evaluated using decision curve analysis.ResultsThe LDA+DC model was identified as the optimal classifier among the six radiomics models. Necrosis was determined as a risk factor for +7/-10 in IDH-wt histologically LGG. The nomogram achieved the best performance, with an AUC of 0.854 and an accuracy of 0.778 in the independent test group. The decision curve of the nomogram confirmed its clinical usefulness in a wide range of thresholds.ConclusionThe nomogram combining radiomics and semantic features can predict the +7/-10 status effectively, which may contribute to the risk stratification and individualized treatment planning of patients with IDH-wt histologically LGG.
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- 2023
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42. Simulation of highly efficient GeSe-based solar cells with SCAPS-1D
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Zhi-Ping Huang, You-Xian Chen, Zi-Heng Huang, Wen-Wei Lin, Yu Mao, Li-Mei Lin, Li-Quan Yao, Hu Li, Li-Ping Cai, and Gui-Lin Chen
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Device simulation ,SCAPS ,Thin film solar cell ,GeSe ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Recently GeSe has developed as a promising light harvesting material by enjoying to its optical and electrical features as well as earth-abundant and low-toxic constituent elements. Nevertheless, the power conversion efficiency of GeSe-based solar cells yet lags far behind the Shockley-Queisser limit. In this work, we systematically designed, simulated and analyzed the highly efficient GeSe thin-film solar cells by SCAPS-1D. The influence of thickness and defect density of light harvest material, GeSe/CdS interface defect density, electron transport layer (ETL), electrode work function and hole transport layer (HTL) on the device output are carefully analyzed. By optimizing the parameters (thickness, defect, concentration, work function, ETL and HTL), an impressive PCE of 17.98% is delivered along with Jsc of 37.11 mA/cm2, FF of 75.53%, Voc of 0.61 V. This work offers theoretical guidance for the design of highly efficient GeSe thin film solar cells.
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- 2023
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43. Anthropogenic NO x emissions of China, the U.S. and Europe from 2019 to 2022 inferred from TROPOMI observations
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Yu Mao, Hengmao Wang, Fei Jiang, Shuzhuang Feng, Mengwei Jia, and Weimin Ju
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anthropogenic NO x emissions ,two-step inversion framework ,GEOS-Chem ,TROPOMI ,Environmental technology. Sanitary engineering ,TD1-1066 ,Environmental sciences ,GE1-350 ,Science ,Physics ,QC1-999 - Abstract
Anthropogenic nitrogen oxide (NO _x ) emissions are closely associated with human activities. In recent years, global human activity patterns have changed significantly owing to the COVID‐19 epidemic and international energy crisis. However, their effects on NO _x emissions are not yet fully understood. In this study, we developed a two-step inversion framework using NO _2 observations from the TROPOMI satellite and the GEOS-Chem global atmospheric chemical transport model, and inferred global anthropogenic NO _x emissions from 2019 to 2022, focusing on China, the United States (U.S.), and Europe. Our results indicated an 1.68% reduction in NO _x emissions in 2020 and a 5.72% rebound in 2021 across all regions. China rebounded faster than the others, surpassing its 2019 levels by July 2020. In 2022, emissions declined in all regions, driven mainly by the Omicron variant, energy shortages, and clean energy policies. Our findings provide valuable insights for the development of effective future emission management strategies.
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- 2024
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44. Application of cardiovascular 3-dimensional printing in Transcatheter aortic valve replacement
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Yanyan Ma, Yu Mao, Guangyu Zhu, and Jian Yang
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3D printing ,Transcatheter aortic valve replacement ,Models ,Aortic root ,Medicine (General) ,R5-920 ,Biology (General) ,QH301-705.5 - Abstract
Abstract Transcatheter aortic valve replacement (TAVR) has been performed for nearly 20 years, with reliable safety and efficacy in moderate- to high-risk patients with aortic stenosis or regurgitation, with the advantage of less trauma and better prognosis than traditional open surgery. However, because surgeons have not been able to obtain a full view of the aortic root, 3-dimensional printing has been used to reconstruct the aortic root so that they could clearly and intuitively understand the specific anatomical structure. In addition, the 3D printed model has been used for the in vitro simulation of the planned procedures to predict the potential complications of TAVR, the goal being to provide guidance to reasonably plan the procedure to achieve the best outcome. Postprocedural 3D printing can be used to understand the depth, shape, and distribution of the stent. Cardiovascular 3D printing has achieved remarkable results in TAVR and has a great potential.
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- 2022
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45. The shift in sensory eye dominance from short-term monocular deprivation exhibits no dependence on test spatial frequency
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Yiya Chen, Yu Mao, Jiawei Zhou, Zhifen He, and Robert F. Hess
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Monocular deprivation ,Binocular combination ,Spatial frequency ,Visual plasticity ,Sensory eye dominance ,Ophthalmology ,RE1-994 - Abstract
Abstract Background Studies have shown that short-term monocular deprivation induces a shift in sensory eye dominance in favor of the deprived eye. Yet, how short-term monocular deprivation modulates sensory eye dominance across spatial frequency is not clear. To address this issue, we conducted a study to investigate the dependence of short-term monocular deprivation effect on test spatial frequency. Methods Ten healthy young adults (age: 24.7 ± 1.7 years, four males) with normal vision participated. We deprived their dominant eye with a translucent patch for 2.5 h. The interocular contrast ratio (dominant eye/non-dominant eye, i.e., the balance point [BP]), which indicates the contribution that the two eyes make to binocular combination, was measured using a binocular orientation combination task. We assessed if BPs at 0.5, 4 or 6 cycles/degree (c/d) change as a result of monocular deprivation. Different test spatial frequency conditions were conducted on three separate days in a random fashion. Results We compared the BPs at 0.5, 4 and 6 c/d before and after monocular deprivation. The BPs were found to be significantly affected by deprivation, where sensory eye dominance shift to the deprived eye (F1.86, 16.76 = 33.09, P
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- 2022
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46. Collapsin response mediator protein 5-associated optic neuropathy: clinical characteristics, radiologic clues, and outcomes
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Rong Yan, Yu Mao, Huiyang Zeng, Qian Liu, Hanqiu Jiang, Jingting Peng, Qingling Yang, Shilei Cui, Lei Liu, Yanjun Guo, and Jiawei Wang
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anti-CRMP5 autoantibody ,magnetic resonance imaging ,optic neuritis ,paraneoplastic neurologic syndromes ,autoimmune optic neuropathy ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
ObjectiveCollapsin response mediator protein 5-associated optic neuropathy (CRMP5-ON) is a rare entity of autoimmune optic neuropathy. This study aimed to review the neuro-ophthalmic findings and outcomes in a series of patients with CRMP5-ON to further characterize its clinical phenotype, radiologic clues, and outcomes.MethodsThis was a retrospective case series and a single-center medical chart review of all patients with CRPM5-seropositive ON at the Department of Neurology, Beijing Tongren Hospital, from December 1, 2020, to March 31, 2023. The main outcome measures were neuro-ophthalmic manifestations, radiologic characteristics, and clinical outcomes of CRMP5-ON; coexisting neural autoantibody, paraneoplastic associations, and the impact of immunosuppressant therapy.ResultsFive patients were identified. Four (80%) were female, and the average age at onset was 59.4 years (range 53–69 years), with an average follow-up of 15.3 months (range 1.4–28.7 months). The average best-corrected visual acuity (BCVA) at nadir was 20/120 (range 20/20 to count fingers). Seven of ten affected eyes (70%) showed diffuse defects of the central field. Painless bilateral involvement and optic disk edema occurred in 100% of patients, combined with vitritis, uveitis, or retinitis in four (80%). Four patients (80%) had MRI abnormalities along the optic nerve (one patient with optic nerve enhancement and three patients had optic nerve sheath enhancement or peribulbar fat enhancement). Three patients (60%) had optic neuropathy with other neurologic symptoms. Four patients (80%) had confirmed cancer (two were small-cell lung carcinoma, one was papillary thyroid carcinoma and another was thymoma and invasive pulmonary adenocarcinoma). All cancers were identified after the presentation of the optic neuropathy. The intervention included IVIG, IVMP, surgery and chemotherapy. The average BCVA at the last follow-up was 20/50 (range 20/20 to count fingers). Three patients had surgery during the initial hospitalization, and were stable during the follow-up. Among two patients who received IVMP, both had improvement after treatment, although one patient had worsening non-ocular neurologic symptoms during the steroid taper.ConclusionCRMP5-ON presented with optic disc edema, often bilateral involved and combined with vitreitis, retinitis, or uveitis. CRMP5-ON can present with MRI optic nerve or perineural optic nerve enhancement, especially in the optic nerve sheath. CRMP5-ON is closely related to paraneoplastic neurologic syndrome. Cancer screening and intervention are crucial to prognosis.
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- 2023
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47. Case report: Cardiac metastatic uterine intravenous leiomyomatosis excision with extracorporeal venous shunt under the guidance of 3-dimensional printing
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Hong Chen, Yu Mao, Hongtao Xie, Dejun Liu, Shun Zhang, Yongcang Tian, Jian Yang, and Benjian Bai
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uterine leiomyomatosis ,surgical treatment ,extracorporeal venous shunt ,3-Dimensional printing ,intravenous leiomyomatosis (IVL) ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Intravenous leiomyomatosis (IVL) is relatively rare, and the incidence of cardiac IVL is even lower. The case report introduces a 48-year-old woman with two episodes of syncope in 2021. Echocardiography showed a cord-like mass in the inferior vena cava (IVC), right atrium (RA), right ventricle (RV) and pulmonary artery. Computed tomography venography and magnetic resonance imaging showed strips in RA, RV, IVC, right common iliac vein, and internal iliac vein, as well as a round-like mass in the right uterine adnexa. Combined with the patient's prior surgical history and rare anatomical structures, surgeons used cardiovascular 3-dimensional (3D) printing technology to create patient-specific preoperative 3D printed model. The model could help surgeons to visually and accurately understand the size of IVL and its relationship to adjacent tissues. Finally, surgeons successfully performed a concurrent transabdominal resection of cardiac metastatic IVL and adnexal hysterectomy with off-cardiopulmonary bypass. Preoperative evaluation and guidance of 3D printing may play a critical role to ensure this surgery for the patient with rare anatomical structures and high surgical risk.Clinical Trial Registration: [ClinicalTrials.gov], Protocol Registration System [NCT02917980].
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- 2023
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48. A benchmark study of convolutional neural networks in fully automatic segmentation of aortic root
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Tingting Yang, Guangyu Zhu, Li Cai, Joon Hock Yeo, Yu Mao, and Jian Yang
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TAVR ,aortic root ,automatic segmentation ,3D CNN ,deep learning ,Biotechnology ,TP248.13-248.65 - Abstract
Recent clinical studies have suggested that introducing 3D patient-specific aortic root models into the pre-operative assessment procedure of transcatheter aortic valve replacement (TAVR) would reduce the incident rate of peri-operative complications. Tradition manual segmentation is labor-intensive and low-efficient, which cannot meet the clinical demands of processing large data volumes. Recent developments in machine learning provided a viable way for accurate and efficient medical image segmentation for 3D patient-specific models automatically. This study quantitively evaluated the auto segmentation quality and efficiency of the four popular segmentation-dedicated three-dimensional (3D) convolutional neural network (CNN) architectures, including 3D UNet, VNet, 3D Res-UNet and SegResNet. All the CNNs were implemented in PyTorch platform, and low-dose CTA image sets of 98 anonymized patients were retrospectively selected from the database for training and testing of the CNNs. The results showed that despite all four 3D CNNs having similar recall, Dice similarity coefficient (DSC), and Jaccard index on the segmentation of the aortic root, the Hausdorff distance (HD) of the segmentation results from 3D Res-UNet is 8.56 ± 2.28, which is only 9.8% higher than that of VNet, but 25.5% and 86.4% lower than that of 3D UNet and SegResNet, respectively. In addition, 3D Res-UNet and VNet also performed better in the 3D deviation location of interest analysis focusing on the aortic valve and the bottom of the aortic root. Although 3D Res-UNet and VNet are evenly matched in the aspect of classical segmentation quality evaluation metrics and 3D deviation location of interest analysis, 3D Res-UNet is the most efficient CNN architecture with an average segmentation time of 0.10 ± 0.04 s, which is 91.2%, 95.3% and 64.3% faster than 3D UNet, VNet and SegResNet, respectively. The results from this study suggested that 3D Res-UNet is a suitable candidate for accurate and fast automatic aortic root segmentation for pre-operative assessment of TAVR.
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- 2023
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49. Up-regulation of LCN2 in the anterior cingulate cortex contributes to neural injury-induced chronic pain
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Xiang-Jie Song, Chen-Ling Yang, Danyang Chen, Yumeng Yang, Yu Mao, Peng Cao, Aijun Jiang, Wei Wang, Zhi Zhang, and Wenjuan Tao
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chronic pain ,ACC ,LCN2 ,chemogenetics ,neuronal hyperactivity ,in vivo 2P calcium imaging ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Chronic pain caused by disease or injury affects more than 30% of the general population. The molecular and cellular mechanisms underpinning the development of chronic pain remain unclear, resulting in scant effective treatments. Here, we combined electrophysiological recording, in vivo two-photon (2P) calcium imaging, fiber photometry, Western blotting, and chemogenetic methods to define a role for the secreted pro-inflammatory factor, Lipocalin-2 (LCN2), in chronic pain development in mice with spared nerve injury (SNI). We found that LCN2 expression was upregulated in the anterior cingulate cortex (ACC) at 14 days after SNI, resulting in hyperactivity of ACC glutamatergic neurons (ACCGlu) and pain sensitization. By contrast, suppressing LCN2 protein levels in the ACC with viral constructs or exogenous application of neutralizing antibodies leads to significant attenuation of chronic pain by preventing ACCGlu neuronal hyperactivity in SNI 2W mice. In addition, administering purified recombinant LCN2 protein in the ACC could induce pain sensitization by inducing ACCGlu neuronal hyperactivity in naïve mice. This study provides a mechanism by which LCN2-mediated hyperactivity of ACCGlu neurons contributes to pain sensitization, and reveals a new potential target for treating chronic pain.
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- 2023
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50. Strong field enhancement and hot spot manipulation based on anapole state in Si disk-ring metasurface
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Shuo Tian, Junqiao Wang, Shuai Sun, Mengyue He, Yu Mao, Ya Gao, and Pei Ding
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Anapole state ,Strong field enhancement ,Hot spot manipulation ,Si disk-ring metasurface ,Physics ,QC1-999 - Abstract
In this work, a metasurface consisting of disk-ring Si nanostructures on a SiO2 substrate is proposed and numerically simulated. The Si disk-ring structure can excite and manipulate anapole state, and periodic array supports lattice resonance simultaneously, which can improve the near-field enhancement in the gap region. The maximum E-field enhancement can be up to 346 times, and a transmission dip with an ultra-narrow bandwidth of 0.34 nm and a Q-factor of 4460 is shown. When the central disk has an offset, the near-field enhancement can be affected. In the case of y-direction offset, the maximum E-field enhancement can be up to 468 times. The near field energy is concentrated in the gap region, easy to interact with probing molecule in surrounding environment. Meanwhile, the designed metasurface shows a sensing performance of 387 nm/RIU. The strong energy confinement and high Q-factor of the proposed structure give an opportunity to enhance the interaction between light and matter, which may have potential applications in nonlinear optics, optical sensors and surface enhanced Raman scattering.
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- 2023
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