170 results on '"Pin G"'
Search Results
2. Robust Frequency-Adaptive Quadrature PLLs with Lyapunov-certified Global Stability
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Pin, G., Chen, B., Fedele, G., Parisini, T., Pin, G., Chen, B., Fedele, G., and Parisini, T.
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Sinusoidal estimation - Abstract
This work describes and compares two phaselocked- loop (PLL) algorithms aimed at tracking a biased sinusoidal signal with unknown frequency, amplitude and phase, with inherent robustness to dc-offset. The proposed methods endow Quadrature PLLs, renowned for their excellent tracking performance, with frequency-adaptation capability, while providing robust global stability certificates. The large-gain global stability, proven by Lyapunov-like arguments borrowed from adaptive control theory, represents a major benefit compared to conventional PLLs, whose convergence instead can be proven only locally by small-signal analysis or small-gain assumptions. In this connection, the proposed algorithms represent the first frequency-adaptive and DC-bias rejecting PLL-type architectures with Lyapunov-certified global stability. When used for signal tracking, the proposed methods are shown to outperform the adaptive observer, especially in noisy conditions. Moreover, they provide more accurate frequency estimates than existent frequency-adaptive PLLs, showing enhanced robustness in facing both phase-noise and measurement perturbations.
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- 2023
3. Comparison of the safety of esophagojejunal overlap and π-shaped anastomosis in totally laparoscopic total gastrectomy
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Tongkun Song, Maoxing Liu, Kai Xu, Jiadi Xing, Kechen Guo, Xinyu Qi, Pin Gao, Fei Tan, Zhendan Yao, Nan Zhang, Hong Yang, Chenghai Zhang, Ming Cui, and Xiangqian Su
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Overlap anastomosis ,π-shaped anastomosis ,Totally laparoscopic total gastrectomy ,Gastroesophageal junction cancer ,Surgery ,RD1-811 - Abstract
Abstract Background Globally, totally laparoscopic total gastrectomy is increasingly being accepted by surgeons for the treatment of gastric cancer. Overlap anastomosis and π-shaped anastomosis are the two most commonly used anastomosis methods in total laparoscopic surgery; however, their safety and suitability for the population are still unclear. Methods A total of 162 consecutive patients with gastric cancer who underwent total laparoscopic total gastrectomy with overlap or π-shaped anastomosis were retrospectively analyzed. The intraoperative conditions and postoperative complications were compared. Results A significant difference in the tumor location was found between the two groups (p 0.05); however, the π-shaped anastomosis group had more postoperative anastomotic leakage (p
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- 2025
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4. Effect of anastomotic reinforcement with barded suture on anastomotic leakage prevention following laparoscopic low anterior resection for rectal cancer: a retrospective single-center study
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Xinyu Qi, Kai Xu, Maoxing Liu, Fei Tan, Pin Gao, Chuanyong Zhou, Zhendan Yao, Nan Zhang, Hong Yang, Chenghai Zhang, Jiadi Xing, Ming Cui, and Xiangqian Su
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Anastomotic leakage ,Barded suture ,Anastomotic reinforcement ,Rectal cancer ,Quality life ,Surgery ,RD1-811 - Abstract
Abstract Background Anastomotic leakage (AL) is a serious complication that may occur following the double stapling technique (DST). The study aims to investigate the efficacy of anastomotic reinforcement using barbed sutures in preventing AL after laparoscopic low anterior resection (LAR) for rectal cancer. Methods During the period from November 1, 2018 to November 1, 2023, a total of 725 consecutive patients who had underwent laparoscopic LAR for rectal cancer were enrolled in this study. The patients were divided into two groups: the continuous barbed suture reinforcement group (N = 296) and the control group (N = 429). Inter-group comparisons were used the chi-squared test, Fisher’s exact test, and nonparametric tests. Independent risk or protective factors for AL were analyzed using the multivariate logistic regression. Results Among the 725 patients enrolled in this study, 24 patients (3.3%) were diagnosed with AL following surgery. The incidence of AL was lower in the reinforcement group when compared with the control group (1.4% vs. 4.7%, P = 0.014). In multivariate regression analyses, the neoadjuvant therapy (OR = 11.994, P
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- 2025
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5. Interest of eye movement study in early diagnosis of posterior cortical atrophy: A case-report
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Pin, G., primary, Trompette, C., additional, Ceccaldi, M., additional, Felician, O., additional, and Koric, L., additional
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- 2023
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6. Risk factors and discrimination model for screen exposure among children under 3 years: findings from Fujian province in China
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Chong Guo, Jingmin Guo, Zhi Qu, Juan Gao, Fei Zhou, Chunmei Chen, Pin Ge, and Guihua Liu
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Screen exposure ,Children under 3 years ,Risk factors ,Risk discrimination model ,Targeted intervention ,Pediatrics ,RJ1-570 - Abstract
Abstract Background Compliance with screen time guidelines among children worldwide remains low, and there is insufficient evidence on the current prevalence in China. This study aimed to investigate the prevalence of compliance with screen time guidelines among children under 3 years old in Fujian Province, East China, identify risk factors and their independent effects, and develop a risk discrimination model for targeted interventions. Methods A cross-sectional survey was conducted among low-income families recruited from welfare programs at 96 sites in both urban and rural areas of Fujian Province, China. Face-to-face interviews gathered sociodemographic data, lifestyle information, attitudes towards screen exposure, and details on screen media device ownership. A multivariable logistic regression model was employed to identify independent risk factors for compliance with screen time guidelines, while the area under the receiver operating characteristic curve (AUC) was used to evaluate the model’s discrimination ability. Results A total of 4,707 children participated in the survey. The rates of compliance with screen time guidelines were 56.8% for children under 1 year old, 18.8% for those between 1 and 2 years old, and 81.9% for those between 2 and 3 years old. The multivariable regression analysis identified negative attitudes towards screen exposure, co-viewing and engagement, as well as single child, as significant positive independent factors for compliance with the guidelines. The risk discrimination model demonstrated good performance, with an AUC of 0.845 and 0.812 in the two younger age groups, but showed medium discrimination with an AUC of 0.691 for children between 2 and 3 years old. Conclusions Compliance with screen time guidelines among young children in Fujian Province, East China, is generally adequate, but notably low among children between 1 and 2 years old. Targeted interventions are needed to improve compliance, particularly for this age group.
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- 2024
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7. Quantifying attention in children with intellectual and developmental disabilities through multicenter electrooculogram signal analysis
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Shi-yi Qi, Si-jia Zhang, Li-li Lin, Yu-rong Li, Jian-guo Chen, You-cong Ni, Xin Du, Jie Zhang, Pin Ge, Gui-hua Liu, Jiang-yun Wu, Shen Lin, Meng Gong, Jin-wen Lin, Lan-fang Chen, Ling-ling He, and Dong Lin
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Neurodevelopmental disorders ,Intellectual and developmental disabilities ,Attention ,Eye movement ,Electrooculogram (EOG) signals ,Nonlinear analysis techniques ,Medicine ,Science - Abstract
Abstract In a multicenter case–control investigation, we assessed the efficacy of the Electrooculogram Signal Analysis (EOG-SA) method, which integrates attention-related visual evocation, electrooculography, and nonlinear analysis, for distinguishing between intellectual and developmental disabilities (IDD) and typical development (TD) in children. Analyzing 127 participants (63 IDD, 64 TD), we applied nonlinear dynamics for feature extraction. Results indicated EOG-SA’s capability to distinguish IDD, with higher template thresholds and Correlation Dimension values correlating with clinical severity. The template threshold proved a robust indicator, with higher values denoting severe IDD. Discriminative metrics showed areas under the curve of 0.91 (template threshold) and 0.85/0.91 (D2), with sensitivities and specificities of 77.6%/95.9% and 93.5%/71.0%, respectively. EOG-SA emerges as a promising tool, offering interpretable neural biomarkers for early and nuanced diagnosis of IDD.
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- 2024
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8. Adaptive task-space metal strip-flatness control in cold multi-roll mill stands
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Pin, G., Francesconi, V., Cuzzola, F.A., and Parisini, T.
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- 2013
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9. Frequency-adaptive Backup-Roll Eccentricity Compensation with Force Feedback
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Pin, G., Cuzzola, F.A., and Assalone, A.
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- 2012
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10. Adaptive Task-Space Control of Strip Flatness in Multiroll Mill Stands
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Pin, G, Francesconi, V, Cuzzola, F.A, Martinis, S., and Parisini, T.
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- 2011
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11. Association of a complete breast cancer pathologic response with axillary lymph node metastasis via neoadjuvant chemotherapy: Results from the CSBrS-012 study
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Le Ma, Pin Gao, Zhenzhen Liu, Dechuang Jiao, Rui Ling, Jingjing Xiao, Yi Zhao, Yitong Wang, Hongjian Yang, Yunjiang Liu, Ke Liu, Jianguo Zhang, Guangyan Li, Dahua Mao, Yinglei Deng, Jianjun He, Maimaitiaili Amina, Zhigang Yu, Wang Fei, Yinhua Liu, Peifen Fu, Minya Yao, Jiandong Wang, Li Zhu, Hongchuan Jiang, Zuowei Zhao, Xingsong Tian, Zhongwei Cao, Xinyu Ma, Kejin Wu, Shaomei Fu, Ailin Song, Yanwei Wang, Jin Feng, Zhimin Fan, and Yanjie Yin
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Medicine - Published
- 2024
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12. Adaptive time-warped control of molten salt distributed collector solar fields
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Pin, G., Falchetta, M., and Fenu, G.
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- 2008
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13. The safety and short-term effect of mixed approach in laparoscopic right hemicolectomy for right colon cancer compared with middle approach: a retrospective study
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Shun-Yu Deng, Mao-Xing Liu, Pin Gao, Cheng-cai Zhang, Jia-Di Xing, Kechen Guo, Kai Xu, Fei Tan, Cheng-Hai Zhang, Ming Cui, and Xiang-Qian Su
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Laparoscopic surgery ,Colon cancer ,Minimally invasive surgery ,Surgery approaches ,Surgery ,RD1-811 - Abstract
Abstract Purpose To investigate whether the mixed approach is a safe and advantageous way to operate laparoscopic right hemicolectomy. Methods A retrospective study was performed on 316 patients who underwent laparoscopic right hemicolectomy in our center. They were assigned to the middle approach group (n = 158) and the mixed approach group (n = 158) according to the surgical approaches. The baseline data like gender、age and body mass index as well as the intraoperative and postoperative conditions including operation time, blood loss, postoperative hospital stay and complications were analyzed. Results There were no significant differences in age, sex, BMI, ASA grade and tumor characteristics between the two groups. Compared with the middle approach group, the mixed approach group was significantly lower in terms of operation time (217.61 min vs 154.31 min, p
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- 2024
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14. A direct approach for the frequency-adaptive feedforward cancellation of harmonic disturbances
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Pin, G.
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Feedforward control systems -- Usage ,Linear systems -- Analysis ,Signal processing -- Methods ,Digital signal processor ,Business ,Computers ,Electronics ,Electronics and electrical industries - Published
- 2010
15. Consensus on Drug Treatment, Definition and Diagnosis for Insomnia
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Estivill, E., Bové, A., García-Borreguero, D., Gibert, J., Paniagua, J., Pin, G., Puertas, F. J., and Cilveti, R.
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- 2003
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16. Integrated analysis of single-cell sequencing and machine learning identifies a signature based on monocyte/macrophage hub genes to analyze the intracranial aneurysm associated immune microenvironment
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Yifan Xu, Pin Guo, Guipeng Wang, Xiaojuan Sun, Chao Wang, Huanting Li, Zhenwen Cui, Pining Zhang, and Yugong Feng
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intracranial aneurysm ,single-cell sequencing ,machine learning ,immune microenvironment ,hub genes ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Monocytes are pivotal immune cells in eliciting specific immune responses and can exert a significant impact on the progression, prognosis, and immunotherapy of intracranial aneurysms (IAs). The objective of this study was to identify monocyte/macrophage (Mo/MΦ)-associated gene signatures to elucidate their correlation with the pathogenesis and immune microenvironment of IAs, thereby offering potential avenues for targeted therapy against IAs. Single-cell RNA-sequencing (scRNA-seq) data of IAs were acquired from the Gene Expression Synthesis (GEO) database. The significant infiltration of monocyte subsets in the parietal tissue of IAs was identified using single-cell RNA sequencing and high-dimensional weighted gene co-expression network analysis (hdWGCNA). The integration of six machine learning algorithms identified four crucial genes linked to these Mo/MΦ. Subsequently, we developed a multilayer perceptron (MLP) neural model for the diagnosis of IAs (independent external test AUC=1.0, sensitivity =100%, specificity =100%). Furthermore, we employed the CIBERSORT method and MCP counter to establish the correlation between monocyte characteristics and immune cell infiltration as well as patient heterogeneity. Our findings offer valuable insights into the molecular characterization of monocyte infiltration in IAs, which plays a pivotal role in shaping the immune microenvironment of IAs. Recognizing this characterization is crucial for comprehending the limitations associated with targeted therapies for IAs. Ultimately, the results were verified by real-time fluorescence quantitative PCR and Immunohistochemistry.
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- 2024
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17. Machine learning-based disulfidptosis-related lncRNA signature predicts prognosis, immune infiltration and drug sensitivity in hepatocellular carcinoma
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Lei Pu, Yan Sun, Cheng Pu, Xiaoyan Zhang, Dong Wang, Xingning Liu, Pin Guo, Bing Wang, Liang Xue, and Peng Sun
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LncRNA ,Hepatocellular carcinoma cells ,Disulfidptosis ,Immune microenvironment ,Prognostic signature ,Medicine ,Science - Abstract
Abstract Disulfidptosis a new cell death mode, which can cause the death of Hepatocellular Carcinoma (HCC) cells. However, the significance of disulfidptosis-related Long non-coding RNAs (DRLs) in the prognosis and immunotherapy of HCC remains unclear. Based on The Cancer Genome Atlas (TCGA) database, we used Least Absolute Shrinkage and Selection Operator (LASSO) and Cox regression model to construct DRL Prognostic Signature (DRLPS)-based risk scores and performed Gene Expression Omnibus outside validation. Survival analysis was performed and a nomogram was constructed. Moreover, we performed functional enrichment annotation, immune infiltration and drug sensitivity analyses. Five DRLs (AL590705.3, AC072054.1, AC069307.1, AC107959.3 and ZNF232-AS1) were identified to construct prognostic signature. DRLPS-based risk scores exhibited better predictive efficacy of survival than conventional clinical features. The nomogram showed high congruence between the predicted survival and observed survival. Gene set were mainly enriched in cell proliferation, differentiation and growth function related pathways. Immune cell infiltration in the low-risk group was significantly higher than that in the high-risk group. Additionally, the high-risk group exhibited higher sensitivity to Afatinib, Fulvestrant, Gefitinib, Osimertinib, Sapitinib, and Taselisib. In conclusion, our study highlighted the potential utility of the constructed DRLPS in the prognosis prediction of HCC patients, which demonstrated promising clinical application value.
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- 2024
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18. IEEE Transactions on Automatic Control
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G. Pin, G. Fenu, V. Casagrande, D. Zorzenon and T. Parisini
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- 2020
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19. An Adaptive Observer-based Robust Estimator of Multi-sinusoidal Signals
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Chen, B., Pin, G., W. M., Ng, Lee, C. K., Hui, S. Y. R., Parisini, T., Chen, B., Pin, G., Ng, W. M., Lee, C. K., Hui, S. Y. R., and Parisini, T.
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0209 industrial biotechnology ,Computer science ,0906 Electrical And Electronic Engineering ,Robust statistics ,Internal model ,Estimator ,020206 networking & telecommunications ,02 engineering and technology ,Signal ,Stability (probability) ,Computer Science Applications ,Phase-locked loop ,Industrial Engineering & Automation ,020901 industrial engineering & automation ,Adaptive observers ,Control and Systems Engineering ,Control theory ,0102 Applied Mathematics ,Bounded function ,0202 electrical engineering, electronic engineering, information engineering ,Fading ,Electrical and Electronic Engineering ,0913 Mechanical Engineering - Abstract
This paper presents an adaptive-observer-based robust estimation methodology of the amplitudes, frequencies, and phases of biased multi-sinusoidal signals in the presence of bounded perturbations on the measurement. The parameters of the sinusoidal components are estimated online, and the update laws are individually controlled by an excitation-based switching logic enabling the update of a parameter only when the measured signal is sufficiently informative. This way doing, the algorithm is able to tackle the problem of overparameterization (i.e., when the internal model accounts for a number of sinusoids that is larger than the true spectral content) or temporarily fading sinusoidal components. The stability analysis proves the existence of a tuning parameter set, for which the estimator's dynamics are input-to-state stable with respect to bounded measurement disturbances. The performance of the proposed estimation approach is evaluated and compared with the other existing tools by extensive simulation trials and real-time experiments.
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- 2018
20. HYDROGEN-PEROXIDE EPOXIDATION OF NATURAL OLEFINS CATALYZED BY A DINUCLEAR MANGANESE COMPLEX
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Mandelli, D., Voitiski, K. B., Schuchardt, U., and Shulʼpin, G. B.
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- 2002
21. Predicting central nervous system relapse in primary breast diffuse large B-cell lymphoma using the stage-modified IPI score: A retrospective cohort study
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Guang-Liang Chen, Pin Guo, Jin Wang, Bao-Hua Yu, Xiaonan Hong, Junning Cao, and Fangfang Lv
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Breast ,Diffuse large B-Cell lymphoma ,Relapse ,Central nervous system ,International prognostic index ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Objective: The existing Central Nervous System-International Prognostic Index (CNS-IPI) provides insufficient guidance for predicting central nervous system (CNS) relapse in individuals with primary breast diffuse large B-cell lymphoma (DLBCL). This retrospective cohort study sought to examine the potential of the stage-modified IPI in predicting CNS relapse within this specific patient population. Patients and methods: We examined the baseline characteristics of 76 consecutive patients diagnosed with primary breast DLBCL, calculating the stage-modified IPI score for each individual. Utilizing a competing risk regression (CRR) model, we conducted both univariate and multivariate analyses to explore the relationship between potential prognostic factors and the occurrence of CNS relapse. Results: In our cohort, the rates of CNS disease at 2 and 5 years since the diagnosis of primary breast DLBCL are 3.9% and 7.8%, respectively. Among patients experiencing CNS relapse, 80% presented with a parenchymal brain mass. Individuals with a high stage-modified IPI score (1–3 points) had a significantly higher incidence of CNS relapse (p = 0.031), a shorter time from the initial diagnosis of primary breast DLBCL to the first CNS relapse (p = 0.010), as well as relapse at any site (p = 0.012), compared to those with a low score (0 points). Univariate analysis identified stage (Hazard Ratio (HR): 4.098, p = 0.024), stage-modified IPI score (HR: 11.582, p = 0.012), and radiation therapy (HR: 5.784, p = 0.026) as significant risk factors. In multivariate analysis, in addition to radiation therapy (HR: 7.258, p = 0.012), the stage-modified IPI score (1–3 points versus 0 points) emerged as an independent and reliable predictor for CNS relapse (HR: 12.945, p = 0.016). Conclusion: Our study underscores the significance of stage-modified IPI scores in predicting CNS relapse for patients with primary breast DLBCL. Validation of these findings through further research is essential, along with exploring potential prevention and intervention approaches.
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- 2024
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22. WFDC3 inhibits tumor metastasis by promoting the ERβ-mediated transcriptional repression of TGFBR1 in colorectal cancer
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Tianqi Liu, Min Zhao, Lin Peng, Jiangbo Chen, Pu Xing, Pin Gao, Lei Chen, Xiaowen Qiao, Zaozao Wang, Jiabo Di, Hong Qu, Beihai Jiang, and Xiangqian Su
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Cytology ,QH573-671 - Abstract
Abstract Estrogen plays a protective role in colorectal cancer (CRC) and primarily functions through estrogen receptor β (ERβ). However, clinical strategies for CRC therapy associated with ERβ are still under investigation. Our discoveries identified WFDC3 as a tumor suppressor that facilitates estrogen-induced inhibition of metastasis through the ERβ/TGFBR1 signaling axis. WFDC3 interacts with ERβ and increases its protein stability by inhibiting its proteasome-dependent degradation. WFDC3 represses TGFBR1 expression through ERβ-mediated transcription. Blocking TGFβ signaling with galunisertib, a drug used in clinical trials that targets TGFBR1, impaired the migration of CRC cells induced by WFDC3 depletion. Moreover, there was clinical significance to WFDC3 in CRC, as CRC patients with high WFDC3 expression in tumor cells had favorable prognoses. Therefore, this work suggests that WFDC3 could be an indicator for therapies targeting the estrogen/ERβ pathway in CRC patients.
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- 2023
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23. Estimation of Damped Sinusoidal Signals: an Observer-Based Approach
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Wang, Y., Chen, B., Pin, G., Parisini, Thomas, Wang, Y., Chen, B., Pin, G., and Parisini, Thomas
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Estimation - Abstract
This paper presents a novel observer-based method for estimating the parameters of an exponentially damped sinusoid, including the frequency, amplitude, phase and the damping factor. A second-order sliding-mode-based adaptation law is designed for estimating the frequency and the damping factor, while amplitude and phase are obtainable from the said parameters by straightforward algebra. The stability and robustness analysis in presence of an additive disturbance proves the existence of a tuning parameter set for which the estimator’s dynamics are asymptotic stable and the estimation error asymptotically converges to a residual set whose size depends on the amplitude of the disturbance. Numerical and comparative examples show the effectiveness of the proposed estimation approach.
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- 2017
24. Non-Asymptotic Kernel-based Parametric Estimation of Continuous-time Linear Systems
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Pin, G, Assalone, A, Lovera, M, Parisini, T, Pin, G, Assalone, A, Lovera, M, and Parisini, Thomas
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Technology ,Science & Technology ,Bivariate causal non-asymptotic kernels (BC-NK) ,continuous-time (CT) ,integral methods (IMs) ,modulating function (MF) ,state variable filtering (SVF) ,Electrical and Electronic Engineering ,Control and Systems Engineering ,Computer Science Applications1707 Computer Vision and Pattern Recognition ,IDENTIFICATION ,Systems identification ,Engineering, Electrical & Electronic ,Systems identification, parameter estimation ,INSTRUMENTAL VARIABLE METHODS ,0906 Electrical and Electronic Engineering ,Automation & Control Systems ,Engineering ,Industrial Engineering & Automation ,0102 Applied Mathematics ,parameter estimation ,0913 Mechanical Engineering - Abstract
In this paper, a novel framework to address the problem of parametric estimation for continuous-time linear time-invariant dynamic systems is dealt with. The proposed methodology entails the design of suitable kernels of non-anticipative linear integral operators thus obtaining estimators showing, in the ideal case, “non-asymptotic” (i.e., “finite-time”) convergence. The analysis of the properties of the kernels guaranteeing such a convergence behaviour is addressed and a novel class of admissible kernel functions is introduced. The operators induced by the proposed kernels admit implementable (i.e., finite-dimensional and internally stable) state-space realizations. Extensive numerical results are reported to show the effectiveness of the proposed methodology. Comparisons with some existing continuous-time estimators are addressed as well and insights on the possible bias affecting the estimates are provided.
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- 2016
25. Molecular epidemiology analysis of fowl adenovirus detected from apparently healthy birds in eastern China
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Qingye Zhuang, Suchun Wang, Fuyou Zhang, Chenglong Zhao, Qiong Chen, Ran Zhao, Pin Guo, Lei Ju, Jinping Li, Guangyu Hou, Xiaoying Chen, Fuliang Sun, and Kaicheng Wang
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Fowl adenoviruses ,Apparently healthy birds ,Epidemiological survey ,Living bird markets ,Veterinary medicine ,SF600-1100 - Abstract
Abstract Background Fowl adenovirus is of major concern to the poultry industry worldwidely. In order to monitor the prevalent status of Fowl adenovirus in China, a total of 1920 clinical samples from apparently healthy birds in the 25 sites of poultry flocks, Slaughterhouse and living bird markets from 8 provinces in eastern China were collected and detected by PCR, sequencing, and phylogenetic analysis. Results The epidemiological survey showed that Fowl adenoviruses were detected in living bird markets, and circulating in a variety of fowl species, including chickens, ducks, goose and pigeons. Among the 1920 clinical samples, 166 samples (8.65%) were positive in the fowl adenovirus PCR detection. In this study, totally all the 12 serotypes (serotypes of 1, 2, 3, 4, 5, 6, 7, 8A, 8B, 9, 10 and 11) fowl adenoviruses were detected, the most prevalent serotype was serotype 1. Phylogenetic analysis indicated that 166 FAdVs of 12 serotypes were divided into 5 fowl adenovirus species (Fowl aviadenovirus A, B, C, D, E). Conclusions In the epidemiological survey, 8.65% of the clinical samples from apparently healthy birds were positive in the fowl adenovirus PCR detection. Totally all the 12 serotypes fowl adenoviruses were detected in a variety of fowl species, which provided abundant resources for the research of fowl adenoviruses in China. The newly prevalent FAdV serotypes provides valuable information for the development of an effective control strategy for FAdV infections in fowls.
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- 2023
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26. Peptide-RNA complexation-induced fluorescence 'turn on' displacement assay for the recognition of small ligands targeting HIV-1 RNA
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Liang Qi, Jiayun Zhang, Ying Gao, Pin Gong, Chengyuan Liang, Yao Su, Qiao Zeng, and Yafeng Zhang
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RRE RNA ,Rev protein ,Fluorescence enhancement ,Ligand-RNA interaction ,Drug screening ,Therapeutics. Pharmacology ,RM1-950 - Abstract
The regulator of expression of virion (Rev) protein binds specifically to the Rev-responsive element (RRE) RNA in order to regulate the expression of the human immunodeficiency virus (HIV)-1 genes. Fluorescence indicator displacement assays have been used to identify ligands that can inhibit the Rev–RRE interaction; however, the small fluorescence indicators cannot fully replace the Rev peptide or protein. As a result, a single rhodamine B labeled Rev (RB-Rev) model peptide was utilized in this study to develop a direct and efficient Rev–RRE inhibitor screening model. Due to photon-induced electron transfer quenching of the tryptophan residue on the RB fluorophore, the fluorescence of RB in Rev was weakened and could be dramatically reactivated by interaction with RRE RNA in ammonium acetate buffer (approximately six times). The interaction could reduce the electron transfer between tryptophan and RB, and RRE could also increase RB fluorescence. The inhibitor screening model was evaluated using three known positive Rev–RRE inhibitors, namely, proflavin, 6-chloro-9-[3-(2-chloroethylamino)propylamino]-2-methoxyacridine (ICR 191), and neomycin, as well as a negative drug, arginine. With the addition of the positive drugs, the fluorescence of the Rev–RRE decreased, indicating the displacement of RB-Rev. This was confirmed using atomic force microscopy (AFM) and the fluorescence was essentially unaffected by the addition of arginine. The results demonstrated that RB-Rev can be used as a fluorescent probe for recognizing small ligands that target RRE RNA. The Rev–RRE inhibitor screening model offers a novel approach to evaluating and identifying long-acting Rev inhibitors.
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- 2022
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27. A Parallel Prefiltering Approach for the Identification of a Biased Sinusoid Signal: Theory and Experiments
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Chen, B., Pin, G., Ng, W. M., Hui, S. Y. R., PARISINI, Thomas, Chen, B., Pin, G., Ng, W. M., Hui, S. Y. R., and Parisini, Thomas
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input-to-state stability ,sinusoid estimation, adaptive algorithms, input-to-state stability ,adaptive algorithms ,sinusoid estimation - Abstract
The problem of estimating the amplitude, frequency, and phase of an unknown sinusoidal signal from a noisy-biased measurement is addressed in this paper by a family of parallel prefiltering schemes. The proposed methodology consists in using a pair of linear filters of specified order to generate a suitable number of auxiliary signals that are used to estimate—in an adaptive way—the frequency, the amplitude, and the phase of the sinusoid. Increasing the order of the prefilters improves the noise immunity of the estimator, at the cost of an increase of the computational complexity. Among the whole family of estimators realizable by varying the order of the filters, the simple parallel prefilters of orders 2 C 2 and 3 C 3 are discussed in detail, being the most attractive from the implementability point of view. The behavior of the two algorithms with respect to bounded external disturbances is characterized by input-to-state stability arguments. Finally, the effectiveness of the proposed technique is shown both by comparative numerical simulations and by a real experiment addressing the estimation of the frequency of the electrical mains from a noisy voltage measurement.
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- 2015
28. Evaluation of the polymorphic D-loop of Columba livia in forensic applications
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James Chun-I Lee, Li-Chin Tsai, Adrian Linacre, Hsing-Mei Hsieh, and Shu-Pin G. Liao
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Genetic Markers ,Mitochondrial DNA ,STR multiplex system ,Clinical Biochemistry ,Locus (genetics) ,Single-nucleotide polymorphism ,Minisatellite Repeats ,Biology ,DNA, Mitochondrial ,Polymorphism, Single Nucleotide ,Sensitivity and Specificity ,Biochemistry ,Analytical Chemistry ,D-loop ,Gene Frequency ,Species Specificity ,Animals ,Columbidae ,Genetics ,Haplotype ,Electrophoresis, Capillary ,Pedigree ,Hypervariable region ,Variable number tandem repeat ,Haplotypes ,Microsatellite Repeats - Abstract
We report on the polymorphisms exhibited by three hypervariable regions within the D-loop of Columba livia (pigeon) mitochondrial DNA. A total of 131 samples were taken from 131 randomly selected birds and used in the analyses of SNPs, a variable number of tandem repeats (VNTR) and an STR locus using CE. The number of repeats for the VNTR ranged from 2 to 8 producing 21 haplotypes, with 54 individuals exhibiting heteroplasmy. The STR locus exhibited multiple and continuous repeats within each individual and these patterns were not reproducible with individuals of the same maternal lineage, where different haplotypes were noted. Combining the SNP and VNTR loci produced 38 haplotypes, with the power of discrimination being 0.93. The polymorphic regions of D-loop observed in this study are potential markers for maternal relationship identification.
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- 2010
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29. Spatial and Temporal Changes of Groundwater Level Induced by Thrust Faulting
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Yi-Hsua N Chiang, Tsai-Pin G Lee, Chen-Wum G Liu, Jessie J. Chiu, and Yeepin G Chia
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geography ,geography.geographical_feature_category ,Water table ,Magnitude (mathematics) ,Aquifer ,Active fault ,Fault (geology) ,Geophysics ,Geochemistry and Petrology ,Thrust fault ,Geology ,Seismology ,Groundwater ,Water well - Abstract
Changes of groundwater level, ranging from a fall of 11.10 m to a rise of 7.42 m, induced by thrust faulting during the 1999 Mw 7.6, Chi-Chi earthquake have been recorded in 276 monitoring wells in Taiwan. Most coseismic falls appeared near the seismogenic fault as well as other active faults, while coseismic rises prevailed away from the fault. Coseismic groundwater level rises and falls correlated fairly well with hypocentral distance in the vicinity of the thrust fault. We found a major difference of coseismic changes in wells of different depths at most multiple-well stations. The recovery process of coseismic groundwater level changes is associated with the confining condition of the aquifer. Cross-formational flow is likely to play an important role in groundwater level changes after the earthquake. In the hanging wall of the thrust fault, an abnormal decline of groundwater level was observed immediately before the earthquake. The underlying mechanism of the unique preseismic change warrants further investigation.
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- 2008
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30. A parallel prefiltering approach for the identification of a biased sinusoidal signal: theory and experiments
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Chen, B, Pin, G, Ng, WM, Hui, SYR, and Parisini, T
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Technology ,Science & Technology ,UNKNOWN FREQUENCY ,0906 Electrical And Electronic Engineering ,Engineering, Electrical & Electronic ,NOISE ,input-to-state stability ,adaptive algorithms ,COMPENSATION ,Automation & Control Systems ,Engineering ,FILTER ,Industrial Engineering & Automation ,REJECTION ,0102 Applied Mathematics ,DISTURBANCES ,FREQUENCY ESTIMATION ,sinusoid estimation - Published
- 2015
31. Study on Extraction Technology and Pharmacological Activities of Polysaccharide from Ziziphus jujube
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Pin GONG, Peipei WANG, Meilin TONG, Hui LONG, Gennian MAO, and Fuxin CHEN
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ziziphus jujube mill. ,response surface methodology ,polysaccharide ,antioxidant activity ,hypoglycemic activity ,Food processing and manufacture ,TP368-456 - Abstract
Polysaccharide from Ziziphus jujube Mill. (ZJP) was extracted by ultrasound-assisted extraction. Taking the extraction rate as the evaluation index, the extraction process of polysaccharide was optimized by Design-Expert8.0 and orthogonal experiment on the basis of single-factor test. Subsequently, DPPH free radical and hydroxyl free radical scavenging abilities were used as indicators to evaluate the antioxidant effect of polysaccharides, and the inhibitory rates of α-amylase and α-glucosidase were used as indicators to prove that jujube polysaccharides had the potential of reducing blood sugar. Finally, an external model was established to explore its hypoglycemic mechanism. The optimum parameters were as follows: ultrasonic time of 40 min, solid-liquid ratio of 1:20, ultrasonic power of 80 W, water-bath incubation time of 30 min. Under these conditions the extraction rate of ZJP was 6.58%, which was consistent with the theoretical prediction value of 6.71%. Moreover, the antioxidant activity of ZJP was determined by DPPH free radical and hydroxyl free radical scavenging system and iron-reducing power. In addition, when the polysaccharide concentration reached 14 mg/mL, the inhibition rate of α-glucosidase was 51.56%, and when the concentration was 4 mg/mL, the inhibition rate of α-amylase was 28.43%, respectively, confirming that jujube polysaccharide had obvious hypoglycemic activity. On this basis, the insulin resistance HepG2 cell model was used to detect the glucose consumption effect of different concentrations of jujube polysaccharides by glucose kit and MTT method. The results showed that when the concentration of the drug was 1.0 mg/mL, the cell's consumption of glucose was the largest, GT/MTT reached 154.2% of the model group. Western blotting was used to detect the protein expression level of PI3K/Akt pathway in insulin-resistant HepG2 cells, and it was determined that ZJP could alleviate insulin resistance and exert cytoprotective effect by activating PI3K/Akt pathway. In summary, the extraction method of jujube polysaccharide was optimized, and it was confirmed that jujube polysaccharide had anti-oxidant activity and hypoglycemic activity in vitro, and could be used as a potential anti-oxidant or functional food with a homology of medicine and food.
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- 2022
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32. 11B NMR of the Morphological Evolution of Traditional Chinese Medicine Borax
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Qiulin Li, Yawen Yang, Qingfeng Wang, Xiang Han, Junfeng Zhu, Nan Zhang, Qiuhong Wang, Kanshe Li, Pin Gong, and Fuxin Chen
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boron-containing TCM ,11B NMR ,borax ,boric acid ,boron-containing compound ,Organic chemistry ,QD241-441 - Abstract
This article applies nuclear magnetic resonance technology to the study of boron-containing traditional Chinese medicine, in order to explore the morphological evolution of boron elements in traditional Chinese medicine. Borax is a traditional Chinese medicine with anti-corrosion, anti-inflammatory, antibacterial, and anticonvulsant effects. It is made by boiling, removing stones, and drying borax minerals like borate salts. This article introduces an 11B nuclear magnetic resonance method for identifying and characterizing boron-containing compounds in TCM. We applied this technology to borax aqueous solutions in different chemical environments and found that with boron mixed in the form of SP2 hybridization in equilateral triangles and SP3 hybridization in equilateral tetrahedra, the pH changes in alkaline environments significantly affected the ratio of the two. At the same time, it was found that in addition to the raw material peak, boron signals of other boron-containing compounds were also detected in 20 commercially available boron-containing TCM preparations. These new boron-containing compounds may be true pharmaceutical active ingredients, and adding them directly to the formula can improve quality and safety. This article describes the detection of 11B NMR in boron-containing traditional Chinese medicine preparations. It is simple, non-destructive, and can provide chemical fingerprint studies for boron-containing traditional Chinese medicine.
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- 2024
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33. Extended Recursively Feasible Model Predictive Control by Two-StageOnline Optimization
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Pin, G., Parisini, Thomas, IFAC, Pin, G., and Parisini, Thomas
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Predictive control - Published
- 2010
34. Active Components, Pharmacological Action and Application in Food Processing of Eucommia ulmoides Leaves
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Pin GONG, Yewen HAN, Pengtao ZHAI, Xuefeng CHEN, Wenjun ZHAI, Benzhong ZHENG, and Fuxin CHEN
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eucommia ulmoides leaves ,active ingredient ,pharmacological effect ,processing and application ,Food processing and manufacture ,TP368-456 - Abstract
Eucommia ulmoides is rich in a large number of active ingredients. Studies prove that the leaves and bark of Eucommia ulmoides have the same pharmacological effects, but it has not been effectively developed. In this paper, the active components, pharmacological effects and application in food processing of Eucommia ulmoides leaves are reviewed, so as to lay a theoretical foundation for deep processing and high-value development of Eucommia ulmoides leaves.
- Published
- 2022
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35. A stop-gain mutation in GXYLT1 promotes metastasis of colorectal cancer via the MAPK pathway
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Lin Peng, Min Zhao, Tianqi Liu, Jiangbo Chen, Pin Gao, Lei Chen, Pu Xing, Zaozao Wang, Jiabo Di, Qiang Xu, Hong Qu, Beihai Jiang, and Xiangqian Su
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Cytology ,QH573-671 - Abstract
Abstract Genomic instability plays a key role in the initiation and progression of colorectal cancer (CRC). Although cancer driver genes in CRC have been well characterized, identifying novel genes associated with carcinogenesis and treatment remains challenging because of tumor heterogeneity. Here, we analyzed the genomic alterations of 45 samples from CRC patients in northern China by whole-exome sequencing. In addition to the identification of six well-known CRC driver genes (APC, TP53, KRAS, FBXW7, PIK3CA, and PABPC), two tumor-related genes (MTCH2 and HSPA6) were detected, along with RRP7A and GXYLT1, which have not been previously linked to cancer. GXYLT1 was mutated in 40% (18/45) of the samples in our cohort. Functionally, GXYLT1 promoted migration and invasion in vitro and metastasis in vivo, while the GXYLT1S212* mutant induced significantly greater effect. Furthermore, both GXYLT1 and GXYLT1S212* interacted with ERK2. GXYLT1 induced metastasis via a mechanism involving the Notch and MAPK pathways, whereas the GXYLT1S212* mutant mainly promoted metastasis by activating the MAPK pathway. We propose that GXYLT1 acts as a novel metastasis-associated driver gene and GXYLT1S212* might serve as a potential indicator for therapies targeting the MAPK pathway in CRC.
- Published
- 2022
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36. Research on the Harm of Food-derived Advanced Glycation End Products to Human Health
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Pin GONG, Shuya PEI, Yewen HAN, Wenjuan YANG, Xiangna CHANG, and Fuxin CHEN
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ages ,diabetes ,harm ,prevention ,Food processing and manufacture ,TP368-456 - Abstract
Food-derived advanced glycation end products (AGEs) are irreversible covalent compounds formed by Maillard reactions of reducing sugars with proteins, nucleic acids and lipids under non-enzymatic conditions. It demonstrated that AGEs areclosely related to human health and involved in the occurrence and development of diabetes and its complications, Alzheimer's disease, intestinal diseases and other diseases. This paper briefly summarizes the harm of AGEs to human health in recent years, starting to foodborn AGEs, foucse on its hazards and prevention, in order to help in-depth research Ages. At the same time, ages inhibitors and blocks its functional channels and other means to prevent potential diseases are worthy of attention, may provide new directions for clinical treatment.
- Published
- 2022
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37. Serum and peritoneal biomarkers for the early prediction of symptomatic anastomotic leakage in patients following laparoscopic low anterior resection: A single‐center prospective cohort study
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Xin‐Yu Qi, Fei Tan, Mao‐Xing Liu, Kai Xu, Pin Gao, Zhen‐Dan Yao, Nan Zhang, Hong Yang, Cheng‐Hai Zhang, Jia‐Di Xing, Ming Cui, and Xiang‐Qian Su
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anastomotic leakage ,biomarkers ,early prediction ,nomogram ,rectal cancer ,symptomatic ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Anastomotic leakage (AL) is one of the common complications after rectal cancer surgery. This study aimed to evaluate the combination of biomarkers for the early prediction of symptomatic AL after surgery. Methods A prospective cohort study evaluated the serum and peritoneal biomarkers of patients who underwent laparoscopic low anterior resection (Lap LAR) from November 1, 2021, to May 1, 2022. Multivariate‐penalized logistic regression was performed to explore the independent biomarker with a P‐value
- Published
- 2023
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38. Review on the health-promoting effect of adequate selenium status
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Ying Sun, Zhineng Wang, Pin Gong, Wenbo Yao, Qian Ba, and Hui Wang
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inorganic selenium ,organic selenium ,selenium intake ,health-promoting effects ,selenium status ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Selenium is an essential microelement involved in various biological processes. Selenium deficiency increases the risk of human immunodeficiency virus infection, cancer, cardiovascular disease, and inflammatory bowel disease. Selenium possesses anti-oxidant, anti-cancer, immunomodulatory, hypoglycemic, and intestinal microbiota-regulating properties. The non-linear dose-response relationship between selenium status and health effects is U-shaped; individuals with low baseline selenium levels may benefit from supplementation, whereas those with acceptable or high selenium levels may face possible health hazards. Selenium supplementation is beneficial in various populations and conditions; however, given its small safety window, the safety of selenium supplementation is still a subject of debate. This review summarizes the current understanding of the health-promoting effects of selenium on the human body, the dietary reference intake, and evidence of the association between selenium deficiency and disease.
- Published
- 2023
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39. The nodal positivity rate in breast pCR patients with initially, clinically node-negative breast cancer after neoadjuvant systemic therapy: A systematic review and meta-analysis
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Le Ma, Heyan Chen, Jianjun He, Peiling Xie, Pin Gao, Yijun Li, Huimin Zhang, and Zhimin Fan
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breast cancer ,neoadjuvant systemic therapy ,axillary lymph node positive rate ,sentinel lymph node biopsy ,meta- analysis ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
BackgroundThe axillary lymph node positive (ypN+) rate in patients with clinically node-negative (cN0) breast cancer who have achieved breast pathologic complete response (bpCR) after neoadjuvant systemic therapy (NST) is extremely low, and this population has the potential to be exempt from sentinel lymph node biopsy (SLNB). However, an overview of the ypN+ rate in this population for different breast cancer subtypes is lacking.ObjectiveTo provide the pooled ypN+ rate in cN0 patients who achieved bpCR after NST in different breast cancer subtypes defined by hormone receptor (HR) status and human epidermal growth factor receptor 2 (HER2) status.MethodsA systematic literature search was conducted in Embase and PubMed on July 20, 2022. Two authors independently selected studies that met the inclusion criteria and extracted all data. The pooled ypN+ rates for each subtype were calculated by a random-effects model using the Stata 16.0 metaprop command.ResultsThe pooled analysis of 9609 cN0 patients who achieved bpCR showed that the ypN+ rate was lowest for the HR+/HER2+ (0%) subtype, followed by HR+/HER2- (5.1%), HR-/HER2+ (0.6%), and HR-/HER2- (0.3%). Additionally, 6571 cT1-T2N0 patients who achieved bpCR had a pooled ypN+ rate of 0.6%, and the ypN+ rates for different subtypes were as follows: HR+/HER2+ (1.7%), HR+/HER2- (2.7%), HR-/HER2+ (0.1%), and HR-/HER2- (0.8%).ConclusionOur results suggested that cN0 patients who achieve bpCR may be exempt from axillary surgery in the HR+/HER2-, HR+/HER2+, and HR-/HER2- subtypes because of the extremely low probability of residual axillary lymph node disease. However, the safety of omitting axillary surgery needs to be further confirmed by prospective studies.Systematic Review Registrationhttps://www.crd.york.ac.uk/PROSPERO/#recordDetails, identifier CRD42022351739.
- Published
- 2023
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40. Mechanism of Gynostemma pentaphyllum on Prevention and Treatment of Obesity Based on Network Pharmacology and Molecular Docking Technology
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Yao SU, Lan WANG, Xiangna CHANG, Pin GONG, Wenjuan YANG, and Dandan CUI
- Subjects
obesity ,gynostemma pentaphyllum ,network pharmacology ,molecular docking ,mechanism ,Food processing and manufacture ,TP368-456 - Abstract
Objective: The study revealed the material basis and potential mechanism of Gynostemma pentaphyllum for preventing obesity through network pharmacology and molecular docking technology. Methods: Using TCMSP database combined with literatures to supplement the screening of active ingredients. Using Pubchem and Swiss target prediction databases to collect the targets of active ingredients of Gynostemma pentaphyllum. Using GeneCards, OMIM and DurgBank databases to obtain obesity targets. Taking the intersection of Gynostemma pentaphyllum action targets and disease targets as Gynostemma pentaphyllum prevention and treatment targets for obesity, and using Cytoscape 3.7.2 software to construct a drug-compound-target network. The STRING database was used to construct a target protein interaction PPI network to screen core targets, Discovery Studio 3.5 was used to docks the selected core targets with the active ingredient molecules, DAVID database performs GO enrichment and KEGG pathway annotation analysised on intersection targets, and built a component-target-pathway interaction network model based on the above results. Results: A total of 16 compounds including quercetin, 3'-methyleriodictyol, ginsenoside f2, and gypenoside XXVIII were selected as the material basis for the prevention and treatment of obesity in Gynostemma pentaphyllum, and 107 targets for the treatment of obesity, including STAT3, AKT1, VEGFA , SRC, EGFR, MAPK3 and other 38 key targets. The results of molecular docking showed that the top 6 core targets of PPI had good binding activities with the corresponding compounds 3'-methyleriodictyol, Rhamnazin, Ruvoside, Spinasterol, ginsenoside f2, CLR, quercetin, Gypenoside XXVIII, speculate on these components may be the main pharmacodynamic components. GO analysis showed that the prevention and treatment of obesity by Gynostemma pentaphyllum mainly involved biological processes such as cell growth, proliferation and metabolic processes, molecular functions such as enzyme binding, protein binding, cellular components such as nucleus and cytoplasm. KEGG pathway enrichment results showed that pathway involving cancer signaling pathways, proteoglycan pathways in cancer, PI3K-Akt signaling pathways, and HIF-1 signaling pathways. Conclusion: This study initially revealed that Gynostemma pentaphyllum could affect the proliferation and differentiation of adipocytes, glucose and lipid metabolism, and maintain body homeostasis through multiple components, multiple targets, and multiple pathways to achieve obesity prevention and treatment, would provide a basis for further research on the effective ingredients and molecular mechanisms.
- Published
- 2022
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41. Effects of kiwi fruit (Actinidia chinensis) polysaccharides on metabolites and gut microbiota of acrylamide-induced mice
- Author
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Mengyin Chen, Xuefeng Chen, Ketang Wang, Luyang Cai, Nannan Liu, Duan Zhou, Wei Jia, Pin Gong, Ning Liu, and Yujiao Sun
- Subjects
kiwifruit ,polysaccharides ,acrylamide toxicity ,gut microbiota ,metabolomics ,Nutrition. Foods and food supply ,TX341-641 - Abstract
IntroductionKiwifruit (Actinidia chinensis) has rich nutritious and medicinal properties. It is widely consumed worldwide for the intervention of metabolism disorders, however, the underlying mechanism remains unclear. Acrylamide, a well-known toxic ingredient, mainly forms in high-temperature processed carbohydrate-rich food and causes disorders of gut microbiota and systemic metabolism.MethodsThis study explored the protective effects and underlying mechanisms of kiwifruit polysaccharides against acrylamide-induced disorders of gut microbiota and systemic metabolism by measuring the changes of gut microbiota and serum metabolites in mice.ResultsThe results showed that kiwifruit polysaccharides remarkably alleviated acrylamide-induced toxicity in mice by improving their body features, histopathologic morphology of the liver, and decreased activities of liver function enzymes. Furthermore, the treatment restored the healthy gut microbiota of mice by improving the microbial diversity and abundance of beneficial bacteria such as Lactobacillus. Metabolomics analysis revealed the positive effects of kiwifruit polysaccharides mainly occurred through amino and bile acid-related metabolism pathways including nicotinate and nicotinamide metabolism, primary bile acid biosynthesis, and alanine, aspartate and glutamate metabolism. Additionally, correlation analysis indicated that Lactobacillus exhibited a highly significant correlation with critical metabolites of bile acid metabolism.DiscussionConcisely, kiwifruit polysaccharides may protect against acrylamide-induced toxicity by regulating gut microbiota and metabolism.
- Published
- 2023
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42. Research Progress of Programmed Cell Death Induced by Acrylamide
- Author
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Jing Wang, Jinfeng Yu, Man Wang, Liangliang Fang, Wenjuan Yang, Wenbo Yao, Nan Li, and Pin Gong
- Subjects
Nutrition. Foods and food supply ,TX341-641 - Abstract
Acrylamide exposure through environment pollution and diet is very common in daily life. With the deepening of the study on the toxicity of acrylamide, it has attracted widespread attention for the effects of acrylamide on multiple organs through affecting a variety of programmed cell death. Multiple studies have shown that acrylamide could exert its toxic effect by inducing programmed cell death, but its specific molecular mechanism is still unclear. In this review, the research on the main forms of programmed cell death (apoptosis, autophagy, and programmed necrosis) induced by acrylamide and their possible mechanisms are reviewed. This review may provide basic data for further research of acrylamide and prevention of its toxicity.
- Published
- 2023
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43. 4 cas d'hémorragies digestives par fistule intestinale paraprothétique aortique: étude des stades endoscopiques et approche thérapeutique
- Author
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Martin, J., Cano, N., Di-Costanzo, J., Richieri, J. P., Pin, G., Bergeron, P., and Courbier, R.
- Published
- 1981
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44. Microcapsules and Nanoliposomes Based Strategies to Improve the Stability of Blueberry Anthocyanins
- Author
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Jian Chen, Wenjing Fang, Wei Liu, Jianghua Liu, and Pin Gong
- Subjects
anthocyanins ,microcapsules ,liposomes ,stability ,Organic chemistry ,QD241-441 - Abstract
Blueberry anthocyanins are water-soluble natural pigments that can be used as both natural antioxidants and natural colorants. However, their structural instability greatly limits their application in the food, pharmaceutical, and cosmetic industries. In this study, blueberry anthocyanin microcapsules (BAM) and blueberry anthocyanin liposomes (BAL) were fabricated based on blueberry anthocyanins. Film dispersion methods were used to prepare the BAL. Their preparation processes were optimized and compared to improve the stability of the blueberry anthocyanins following exposure to light and high temperatures. The BAM were prepared through complex phase emulsification. The blueberry anthocyanins were protected by the shell materials composed of sodium alginate after being formed into BAM. Under the optimal conditions, the embedding rate of BAM and BAL can reach as high as 96.14% and 81.26%, respectively. In addition, the particle size, zeta potential, microtopography, and structure feature information of the BAM and BAL were compared. The average particle sizes of the BAM and BAL were 9.78 μm and 290.2 nm, respectively, measured using a laser particle size analyzer, and the zeta potentials of the BAM and BAL were 34.46 mV and 43.0 mV, respectively. In addition, the optimal preparation processes were determined through single-factor and response surface optimization experiments. The most important factors in the single-factor experiment for the preparation of microcapsules and liposomes were the content of CaCl2 and the amount of anthocyanin. The preservation rates in the light and dark were also compared, and the thermal stabilities of the BAM and BAL were characterized through differential thermal scanning. The results showed that both the BAM and BAL maintained the stability of blueberry anthocyanins, and no significant difference was found between the indices used to evaluate their stability. The results of this study provide theoretical support for the development of effective systems to maintain the stability of anthocyanins, thereby improving their bioavailability after ingestion by humans.
- Published
- 2023
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45. Lipid-Lowering Effects of a Novel Polysaccharide Obtained from Fuzhuan Brick Tea In Vitro
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Wenjuan Yang, Shirui Cheng, Meng Liu, Nan Li, Jing Wang, Wenbo Yao, Fuxin Chen, Jianwu Xie, and Pin Gong
- Subjects
Fuzhuan brick tea polysaccharides ,lipid lowering ,AMPK/SREBP-1c/FAS pathway ,Chemical technology ,TP1-1185 - Abstract
Lipid accumulation causes diseases such as obesity and abnormal lipid metabolism, thus impairing human health. Tea polysaccharide is one of the natural, active substances that can lower lipid levels. In this paper, an oleic-acid-induced HepG2 cell model was established. The lipid-lowering effects of a novel group of Fuzhuan brick tea polysaccharides (FTPs)—obtained from Fuzhuan brick tea—were examined in vitro. The monosaccharide composition of FTP3 was Glc, Gal, Ara, Man, Rha, GalAc, GlcAc, and Xyl with a molar ratio of 23.5:13.2:9.0:5.5:5.4:2.7:1.3:1.0, respectively. A molecular weight of 335.68 kDa was identified for FTP3. HepG2 cells treated with FTP3 achieved a prominent lipid-lowering effect compared with cells treated with oleic acid. Images of the Oil Red O staining treatment showed that FTP3-treated groups had significantly fewer red fat droplets. TC and TG levels were lower in FTP3-treated groups. FTP3 alleviated lipid accumulation in HepG2 cells, activated AMPK, and decreased the SREBP-1C and FAS protein expressions associated with fatty acid synthesis. FTP3 holds promising potential for its lipid-lowering effects.
- Published
- 2023
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46. Risk factors of symptomatic anastomotic leakage and its impacts on a long-term survival after laparoscopic low anterior resection for rectal cancer: a retrospective single-center study
- Author
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Xinyu Qi, Maoxing Liu, Kai Xu, Pin Gao, Fei Tan, Zhendan Yao, Nan Zhang, Hong Yang, Chenghai Zhang, Jiadi Xing, Ming Cui, and Xiangqian Su
- Subjects
Symptomatic anastomotic leakage ,Risk factors ,Long-term survival ,Laparoscopic low anterior resection ,Rectal cancer ,Surgery ,RD1-811 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Postoperative symptomatic anastomotic leakage (AL) is a serious complication after low anterior resection (LAR) for rectal cancer. AL can potentially affect short-term patient outcomes and long-term prognosis. This study aimed to explore the risk factors and long-term survival of symptomatic AL after laparoscopic LAR for rectal cancer. Methods From May 2009 to May 2015, 298 consecutive patients who underwent laparoscopic LAR for rectal cancer with or without a defunctioning stoma were included in this study. Univariate and multivariate logistic regression analyses were used to explore independent risk factors for symptomatic AL. Survival analysis was performed using Kaplan–Meier curves, and log-rank tests were used for group comparisons. Results Among the 298 patients enrolled in this study, symptomatic AL occurred in eight (2.7%) patients. The univariate analysis showed that age of ≤65 years (P = 0.048), neoadjuvant therapy (P = 0.095), distance from the anal verge (P = 0.078), duration of operation (P = 0.001), and pathological tumor (T) category (P = 0.004) were associated with symptomatic AL. The multivariate analysis demonstrated that prolonged duration of operation (P = 0.010) was an independent risk factor for symptomatic AL after laparoscopic LAR for rectal cancer. No statistically significant differences were observed in the 3-year (P = 0.785) and 5-year (P = 0.979) overall survival rates. Conclusions A prolonged duration of operation increased the risk of symptomatic AL after laparoscopic LAR for rectal cancer. An impact of symptomatic AL on a long-term survival was not observed in this study; however, further studies are required. Trial registration This study was registered in the Chinese Clinical Trial Registry ( ChiCTR2000033413 ) on May 31, 2020.
- Published
- 2021
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47. Protective Effect of Astragaloside IV against Cadmium-Induced Damage on Mouse Renal Podocytes (MPC5)
- Author
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Pin Gong, Shan Yue, Fuxiong Shi, Wenjuan Yang, Wenbo Yao, Fuxin Chen, and Yuxi Guo
- Subjects
Astragaloside IV ,cadmium ,MPC5 ,diabetic nephropathy ,oxidative stress ,mitochondria ,Organic chemistry ,QD241-441 - Abstract
In this study, we investigated the protective effect of Astragaloside IV (Ast) on mouse podocytes and its possible mechanism of action by constructing a cadmium-induced mouse renal podocytes model. We investigated the effects of cadmium (Cd) toxicity on cell number, morphology, the mitochondrial status of subcellular organelles, protein and gene levels, and the protective effects of Ast by constructing a model of Cd-induced damage to mouse renal podocytes (MPC5) and giving Ast protection at the same time. The results showed that exposure of MPC5 cells to CdCl2 culture medium containing 6.25 μM concentration acted with low cell mortality, but the mortality of MPC5 cells increased with the prolongation of cadmium exposure time. Given Ast, the death rate in the low dose group (12.5 μM) was significantly reduced, while the death rate in the medium dose group (25 μM) was extremely significantly reduced. In comparison to the control group, the Cd-exposed group exhibited a significant increase of 166.7% in malondialdehyde (MDA) content and a significant decrease of 17.1% in SOD activity. The mitochondrial membrane potential was also reduced to varying degrees. However, in the Ast-protected group compared to the Cd-exposed group, the MDA content significantly decreased by 20.8%, the SOD activity decreased by 7.14%, and the mitochondrial membrane potential showed a significant increase. Fluorescence staining of mitochondrial membrane potential indicated that Cd exposure caused mitochondrial apoptosis. In the 12-h cadmium-exposed group, the protein expression of Nephrin in mice significantly decreased by 33.4%. However, the expression of the Desmin protein significantly increased by 67.8%, and the expression of the autophagy protein LC3-II significantly increased by 55.5%. Meanwhile, the expression of PINK1, a mitochondrial autophagy pathway protein, was significantly increased in the 12 h and 24 h cadmium exposure groups. The mRNA level of PINK1 was significantly increased, and that of Parkin was decreased in the 48 h cadmium exposure group. Compared to the Cd-exposed group, the Ast group showed more significant improvements in the expression of podocyte structure, functional proteins, and mitochondrial autophagy pathway proteins. The immunological assay of mitochondrial autophagic pathway proteins further indicated that Cd-induced damage to MPC5 cells might be associated with the dysregulation of mitochondrial autophagy.
- Published
- 2023
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48. Modified -shaped esophagojejunostomy in totally laparoscopic total gastrectomy: a report of 40 consecutive cases from a single center
- Author
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Jiadi Xing, Kai Xu, Maoxing Liu, Pin Gao, Fei Tan, Zhendan Yao, Nan Zhang, Hong Yang, Chenghai Zhang, Ming Cui, and Xiangqian Su
- Subjects
Medicine (General) ,R5-920 - Abstract
Objective Intracorporeal esophagojejunostomy remains a challenging technique in totally laparoscopic total gastrectomy (TLTG) because of the lack of an established standard anastomosis method. However, π-shaped esophagojejunostomy in TLTG is reportedly safe and feasible. Therefore, we evaluated the short-term surgical outcomes of our modified π-shaped esophagojejunostomy in TLTG. Methods This study involved patients without neoadjuvant therapy diagnosed with gastric cancer who underwent TLTG by the same surgeon with modified π-shaped esophagojejunostomy from April 2018 to October 2019. Clinicopathologic data were collected and retrospectively analyzed. Results Forty patients diagnosed with gastric cancer were included. The mean operative time and estimated blood loss were 264.6 ± 56.9 minutes and 68.5 ± 53.3 mL, respectively. Postoperative flatus occurred at 4.6 ± 1.7 days. The mean time to resumption of diet was 7.4 ± 1.7 days postoperatively. One patient was diagnosed with anastomotic leakage and managed with conservative therapy. Pleural effusion was the most common complication, occurring in four (10%) patients. One patient developed intra-abdominal bleeding that required reoperation. Other complications were atrial fibrillation and wound infection. No mortality occurred during the 6-month follow-up. Conclusions Modified π-shaped esophagojejunostomy is safe and feasible for intracorporeal anastomosis in TLTG and showed favorable surgical outcomes in this study.
- Published
- 2022
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49. Papilla Electromyography: Endoluminal Recording Performed in Man by Perduodenoscopic Cannulation
- Author
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Salducci, J., primary, Naudy, B., additional, Pin, G., additional, Ranieri, F., additional, and Monges, H., additional
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50. Low-noise reconstruction method for coded-aperture gamma camera based on multi-layer perceptron
- Author
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Rui Zhang, Xiaobin Tang, Pin Gong, Peng Wang, Cheng Zhou, Xiaoxiang Zhu, Dajian Liang, and Zeyu Wang
- Subjects
Gamma camera ,Coded-aperture imaging ,Neural network ,Multi-layer perceptron ,Monte Carlo simulation ,Nuclear engineering. Atomic power ,TK9001-9401 - Abstract
Accurate localization of radioactive materials is crucial in homeland security and radiological emergencies. Coded-aperture gamma camera is an interesting solution for such applications and can be developed into portable real-time imaging devices. However, traditional reconstruction methods cannot effectively deal with signal-independent noise, thereby hindering low-noise real-time imaging. In this study, a novel reconstruction method with excellent noise-suppression capability based on a multi-layer perceptron (MLP) is proposed. A coded-aperture gamma camera based on pixel detector and coded-aperture mask was constructed, and the process of radioactive source imaging was simulated. Results showed that the MLP method performs better in noise suppression than the traditional correlation analysis method. When the Co-57 source with an activity of 1 MBq was at 289 different positions within the field of view which correspond to 289 different pixels in the reconstructed image, the average contrast-to-noise ratio (CNR) obtained by the MLP method was 21.82, whereas that obtained by the correlation analysis method was 5.85. The variance in CNR of the MLP method is larger than that of correlation analysis, which means the MLP method has some instability in certain conditions.
- Published
- 2020
- Full Text
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