45 results on '"Zhi-xuan Li"'
Search Results
2. Supplemental Tables from Long Noncoding RNA TINCR-Mediated Regulation of Acetyl-CoA Metabolism Promotes Nasopharyngeal Carcinoma Progression and Chemoresistance
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Ying Sun, Na Liu, Jun Ma, Si-Si Xu, Feng Li, Ying-Qin Li, Xiao-Jun He, FoPing Chen, Rui-Qi Liu, Guan-Qun Zhou, Lu-Lu Zhang, Jia-Wei Lv, Jia Kou, Li Lin, Yue Chen, Jun-Yan Li, Xu Liu, Jia-Li Guan, Zhi-Xuan Li, and Zi-Qi Zheng
- Abstract
Supplemental Table S1. qRT-PCR primers used in this study Supplemental Table S2. siRNA sequence used in this study Supplemental Table S3. Primers used for shRNA plasmid construction Supplemental Table S4. Primers used for truncation variants plasmid construction Supplemental Table S5. Primers sequence used for ChIP-PCR assay Supplemental Table S6. Probe sequence of TINCR in situ hybridization (ISH) Supplemental Table S7. Clinical characteristics of nasopharyngeal carcinoma patients according to the high and low expression of TINCR Supplemental Table S8. Univariate and multivariable Cox regression analysis of TINCR expression level and survival Supplemental Table S9. The top10 proteins found by mass spectrometry analysis in the antisense-TINCR group (negative control). Supplemental Table S10. The top10 proteins found by mass spectrometry analysis in the TINCR group. The bold portion shows the proteins that overlap antisense-TINCR
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- 2023
3. Supplementary Table S6 from Long Noncoding RNA FAM225A Promotes Nasopharyngeal Carcinoma Tumorigenesis and Metastasis by Acting as ceRNA to Sponge miR-590-3p/miR-1275 and Upregulate ITGB3
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Ying Sun, Na Liu, Jun Ma, Ying-Qin Li, Xin Wen, Jian Zhang, Jia Kou, Xiao-Jun He, FoPing Chen, Rui-Qi Liu, Xiao-Dan Huang, Jia-Wei Lv, Lu-Lu Zhang, Li Lin, Guan-Qun Zhou, Zhi-Xuan Li, and Zi-Qi Zheng
- Abstract
Supplementary Table S6. The most differentially expressed lncRNAs between 3 pairs of NPC and normal nasopharynx tissues (fold change {greater than or equal to} 3, P-value < 0.05 and raw signal intensity > 1,500)
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- 2023
4. Data from Long Noncoding RNA TINCR-Mediated Regulation of Acetyl-CoA Metabolism Promotes Nasopharyngeal Carcinoma Progression and Chemoresistance
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Ying Sun, Na Liu, Jun Ma, Si-Si Xu, Feng Li, Ying-Qin Li, Xiao-Jun He, FoPing Chen, Rui-Qi Liu, Guan-Qun Zhou, Lu-Lu Zhang, Jia-Wei Lv, Jia Kou, Li Lin, Yue Chen, Jun-Yan Li, Xu Liu, Jia-Li Guan, Zhi-Xuan Li, and Zi-Qi Zheng
- Abstract
Frontier evidence suggests that dysregulation of long noncoding RNAs (lncRNA) is ubiquitous in all human tumors, indicating that lncRNAs might have essential roles in tumorigenesis. Therefore, an in-depth study of the roles of lncRNA in nasopharyngeal carcinoma (NPC) carcinogenesis might be helpful to provide novel therapeutic targets. Here we report that lncRNA TINCR was significantly upregulated in NPC and was associated positively with poor survival. Silencing TINCR inhibited NPC progression and cisplatin resistance. Mechanistically, TINCR bound ACLY and protected it from ubiquitin degradation to maintain total cellular acetyl-CoA levels. Accumulation of cellular acetyl-CoA promoted de novo lipid biosynthesis and histone H3K27 acetylation, which ultimately regulated the peptidyl arginine deiminase 1 (PADI1)–MAPK–MMP2/9 pathway. In addition, insulin-like growth factor 2 mRNA-binding protein 3 interacted with TINCR and slowed its decay, which partially accounted for TINCR upregulation in NPC. These findings demonstrate that TINCR acts as a crucial driver of NPC progression and chemoresistance and highlights the newly identified TINCR–ACLY–PADI1–MAPK–MMP2/9 axis as a potential therapeutic target in NPC.Significance:TINCR-mediated regulation of a PADI1–MAPK–MMP2/9 signaling pathway plays a critical role in NPC progression and chemoresistance, marking TINCR as a viable therapeutic target in this disease.
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- 2023
5. Data from Long Noncoding RNA FAM225A Promotes Nasopharyngeal Carcinoma Tumorigenesis and Metastasis by Acting as ceRNA to Sponge miR-590-3p/miR-1275 and Upregulate ITGB3
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Ying Sun, Na Liu, Jun Ma, Ying-Qin Li, Xin Wen, Jian Zhang, Jia Kou, Xiao-Jun He, FoPing Chen, Rui-Qi Liu, Xiao-Dan Huang, Jia-Wei Lv, Lu-Lu Zhang, Li Lin, Guan-Qun Zhou, Zhi-Xuan Li, and Zi-Qi Zheng
- Abstract
Long noncoding RNAs (lncRNA) play important roles in the tumorigenesis and progression of cancers. However, the clinical significance of lncRNAs and their regulatory mechanisms in nasopharyngeal carcinogenesis (NPC) are largely unknown. Here, based on a microarray analysis, we identified 384 dysregulated lncRNAs, of which, FAM225A was one of the most upregulated lncRNAs in NPC. FAM225A significantly associated with poor survival in NPC. N(6)-Methyladenosine (m6A) was highly enriched within FAM225A and enhanced its RNA stability. FAM225A functioned as an oncogenic lncRNA that promoted NPC cell proliferation, migration, invasion, tumor growth, and metastasis. Mechanistically, FAM225A functioned as a competing endogenous RNA (ceRNA) for sponging miR-590-3p and miR-1275, leading to the upregulation of their target integrin β3 (ITGB3), and the activation of FAK/PI3K/Akt signaling to promote NPC cell proliferation and invasion. In summary, our study reveals a potential ceRNA regulatory pathway in which FAM225A modulates ITGB3 expression by binding to miR-590-3p and miR-1275, ultimately promoting tumorigenesis and metastasis in NPC.Significance:These findings demonstrate the clinical significance of the lncRNA FAM225A in nasopharyngeal carcinoma (NPC) and the regulatory mechanism involved in NPC development and progression, providing a novel prognostic indicator and promising therapeutic target.
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- 2023
6. Supplementary Tables S1-S5, S7-S8, S10 from Long Noncoding RNA FAM225A Promotes Nasopharyngeal Carcinoma Tumorigenesis and Metastasis by Acting as ceRNA to Sponge miR-590-3p/miR-1275 and Upregulate ITGB3
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Ying Sun, Na Liu, Jun Ma, Ying-Qin Li, Xin Wen, Jian Zhang, Jia Kou, Xiao-Jun He, FoPing Chen, Rui-Qi Liu, Xiao-Dan Huang, Jia-Wei Lv, Lu-Lu Zhang, Li Lin, Guan-Qun Zhou, Zhi-Xuan Li, and Zi-Qi Zheng
- Abstract
Supplementary Table S1. qPCR primers used in this study Supplementary Table S2. The FAM225A expression level and grouping of samples based on GEO dataset (GSE12452) Supplementary Table S3. Primers used for shRNA plasmid construction Supplementary Table S4. Sequence of miRNA mimic or inhibitor used in this study Supplementary Table S5. Probe sequence of FAM225A in situ hybridization (ISH) Supplementary Table S7. Clinical characteristics of nasopharyngeal carcinoma patients according to the high and low expression of FAM225A. Supplementary Table S8. Univariate and multivariable Cox regression analysis of FAM225A expression level and survival. Supplementary Table S10. Inguinal lymph node metastasis in vivo.
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- 2023
7. Supplementary Figures from Long Noncoding RNA TINCR-Mediated Regulation of Acetyl-CoA Metabolism Promotes Nasopharyngeal Carcinoma Progression and Chemoresistance
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Ying Sun, Na Liu, Jun Ma, Si-Si Xu, Feng Li, Ying-Qin Li, Xiao-Jun He, FoPing Chen, Rui-Qi Liu, Guan-Qun Zhou, Lu-Lu Zhang, Jia-Wei Lv, Jia Kou, Li Lin, Yue Chen, Jun-Yan Li, Xu Liu, Jia-Li Guan, Zhi-Xuan Li, and Zi-Qi Zheng
- Abstract
Supplemental Figure S1. TINCR is upregulated in six other cancer types. Supplemental Figure S2. GSEA analyses results of TINCR silencing. Supplemental Figure S3. Overexpression of TINCR promotes NPC cell proliferation, metastasis and cisplatin resistance in vitro. Supplemental Figure S4. Overexpression of TINCR reverses the suppressive effects of TINCR knockdown on cell proliferation, cisplatin resistance and metastasis. Supplemental Figure S5. TINCR targets ACLY and impairs its ubiquitination degradation. Supplemental Figure S6. Silencing TINCR has no effects on the expressions of KAT3A and KAT3B. Supplemental Figure S7. The ACLY-binding motif CUGKR is critical for the role of TINCR in maintaining ACLY protein stability and lipid synthesis levels. Supplemental Figure S8. Acetyl-CoA is responsible for TINCR-mediated NPC progression and chemoresistance. Supplemental Figure S9. Correlation between TINCR and PADI1 expression in 16 other cancer types from the TCGA database. Supplemental Figure S10. Silencing TINCR decreases the proteolytic activities of MMP2/9, but had no effects on H3K27ac levels at MMP2/9 promoters. Supplemental Figure S11. IGFBP3 is overexpressed in NPC
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- 2023
8. Supplementary Figures S1-S11 from Long Noncoding RNA FAM225A Promotes Nasopharyngeal Carcinoma Tumorigenesis and Metastasis by Acting as ceRNA to Sponge miR-590-3p/miR-1275 and Upregulate ITGB3
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Ying Sun, Na Liu, Jun Ma, Ying-Qin Li, Xin Wen, Jian Zhang, Jia Kou, Xiao-Jun He, FoPing Chen, Rui-Qi Liu, Xiao-Dan Huang, Jia-Wei Lv, Lu-Lu Zhang, Li Lin, Guan-Qun Zhou, Zhi-Xuan Li, and Zi-Qi Zheng
- Abstract
Supplementary Figure S1. FAM225A is overexpressed in NPC and other tumor types. Supplementary Figure S2. Silencing METTL3 resulted in the decreased m6A level of total RNA. Supplementary Figure S3. FAM225A promotes NPC cell proliferation, migration and invasion in vitro. Supplementary Figure S4. FISH assay showed that FAM225A was mainly located in cytoplasmic. Supplementary Figure S5. FAM225A acts as a ceRNA for miR-590-3p and miR-1275. Supplementary Figure S6. The expression of FAM225A is negatively correlated with miR-590-3p and miR-1275 expression. Supplementary Figure S7. Silencing of miR-590-3p and miR-1275 endows NP69 and N2Tert cells with carcinogenicity in vitro. Supplementary Figure S8. miR-590-3p/miR-1275 are responsible for FAM225A-mediated proliferation, migration and invasion. Supplementary Figure S9. Correlation between FAM225A and ITGB3 expression in 12 other cancer types from the TCGA database. Supplementary Figure S10. FAM225A promotes NPC cell metastasis in vivo. Supplementary Figure S11. ITGB3 is responsible for FAM225A-meidated tumorigenesis and metastasis in vivo.
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- 2023
9. Redefining Left Bundle Branch Block from High-density Electroanatomical Mapping
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Jun-Hua Zou, Bao-Tong Hua, Xiao-Xia Shao, Chao Wang, Hao Li, Ya-Nan Lu, Xin Tian, Zhi-Xuan Li, Li-Jin Pu, and Jing Wang
- Abstract
BackgroundThe current ECG criteria for diagnosing left bundle branch block (LBBB) still cannot fully differentiate between true and false blocks. The absence or presence of an LBBB is key in improving the response rate of clinical cardiac resynchronization therapy (CRT).MethodsWe hypothesized that the notch width of the QRS complex in the lateral leads (I, avL, V5, V6) on the LBBB-like ECG could further confirm the diagnosis of true complete left bundle branch block (t-LBBB). We performed high-density, three-dimensional electroanatomical mapping in the cardiac chambers of 37 patients scheduled to undergo CRT and whose preoperative electrocardiograms met the ACC/AHA/HRS guidelines for the diagnosis of complete LBBB. If the left bundle branch potential could be mapped from the bottom of the heart to the apex on the left ventricular septum, it was defined as a false complete left bundle branch block (f-LBBB). Otherwise, it was categorized as a t-LBBB. We compared the clinical characteristics, the real-time correspondence between the spread of ventricular electrical excitation and the QRS wave, the QRS notch width of the lateral leads (I, avL, V5, V6), and the notch width/left ventricular end-diastolic diameter (Nw/LVd) ratio between the two groups. Through ROC correlation analysis of Nw/LVd and t-LBBB, the sensitivity, specificity, and cut-off value of Nw/LVd diagnostic authenticity were obtained.ResultsTwenty-five patients were recruited to the t-LBBB group, and 12 to the f-LBBB group. In the t-LBBB group, the first peak of the QRS notch corresponded to the depolarization of the right ventricle and septum, the trough corresponded to the depolarization of the left ventricle across the left ventricle, and the second peak corresponded to the depolarization of the left ventricular free wall. In the f-LBBB group, the first peak corresponded to the depolarization of the right ventricle and most of the left ventricle, the second peak corresponded to the depolarization of the latest, locally-activated myocardium of the left ventricle, and the trough was caused by the off-peak delayed activation of the left ventricle. The QRS notch width (45.2 ± 12.3 ms vs. 52.5 ± 9.2 ms,PPConculuionUsing the current diagnostic criteria of LBBB, increasing the Nw/LVd value can diagnose LBBB more effectively.
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- 2023
10. Assessing the impact of perceptions of hygiene on tourists' attitudinal loyalty to ethnic food
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Yang Zhang, Xiao-Hui Xu, Timothy J. Lee, and Zhi-Xuan Li
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Business, Management and Accounting (miscellaneous) ,Food Science - Abstract
PurposeExamining the influence of ethnic food tourists' perception of hygiene on their attitudinal loyalty formation is the purpose of this study. Specifically, How to demonstrate touristsʼ perception of ethnic food hygiene is the key question, and moreover, the study also investigates whether and how the stages of attitudinal loyalty in this study, which are perceived authenticity, positive emotion, and perceived value, are illustrated in this mechanism and are affected by tourist perceptions of hygiene?Design/methodology/approachBy engaging in the critical debate around the topic of hygiene perception, this study explores the influence of this factor on tourist's attitudinal loyalty, including the cognitive, affective and conative aspects, to ethnic food through the adoption of perceived authenticity, positive emotion and perceived value. A survey was conducted at the Xijiang Miao Village, a very popular ethnic tourism destination in China.FindingsThis study reveals that ethnic food tourists' perceptions of hygiene have five dimensions. One of these plays a direct predictor role in developing effective conative loyalty (perceived value). Tourists' perceptions of authenticity and positive emotion representing cognitive and affective loyalty are confirmed in their direct effect on conative loyalty as well. The five dimensions of perceptions of hygiene identified have varying degrees of influence on the three stages of attitudinal loyalty.Originality/valueThe unique contribution of this study lies in two points: (1) it has discovered the way that tourists' perceptions of the hygienic preparation of ethnic food in the ethnic destination is constructed, and (2) it investigated the relationship between tourists' perceptions of hygiene and the three stages of attitudinal loyalty.
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- 2022
11. Spatial maps of hepatocellular carcinoma transcriptomes reveal spatial expression patterns in tumor immune microenvironment
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Yue-fan Wang, Sheng-xian Yuan, Hui Jiang, Zhi-xuan Li, Hao-zan Yin, Jian Tan, Zhi-hui Dai, Chun-mei Ge, Shu-han Sun, and Fu Yang
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Carcinoma, Hepatocellular ,Liver Neoplasms ,Biomarkers, Tumor ,Tumor Microenvironment ,Humans ,Medicine (miscellaneous) ,Transcriptome ,Pharmacology, Toxicology and Pharmaceutics (miscellaneous) - Published
- 2022
12. Three-dimensional electroanatomical mapping guidelines for the selection of pacing site to achieve cardiac resynchronization therapy
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Bao-Tong, Hua, Li-Jin, Pu, Xin, Tian, Wen-Juan, Song, Hao, Li, Chao, Wang, Xiao-Xia, Shao, Rui, Li, Shu-Min, Li, Zhi-Xuan, Li, Jun-Hua, Zou, Ling, Zhao, and Jing, Wang
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Cardiology and Cardiovascular Medicine - Abstract
ObjectivesWe aimed to evaluate the feasibility of left ventricular electroanatomical mapping to choose between left bundle branch area pacing (LBBAP) or coronary venous pacing (CVP).BackgroundThere are several ways to achieve left ventricular activation in cardiac resynchronization therapy (CRT): LBBAP and CVP are two possible methods of delivering CRT. However, the criteria for choosing the best approach remains unknown.MethodsA total of 71 patients with heart failure, reduced ejection fraction, and left bundle branch block (LBBB) were recruited, of which 38 patients underwent the three-dimensional electroanatomical mapping of the left ventricle to accurately assess whether the left bundle branch was blocked and the block level, while the remaining 33 patients were not mapped. Patients with true LBBB achieved CRT by LBBAP, while patients with pseudo-LBBB achieved CRT by CVP. After a mean follow-up of 6 months and 1 year, the QRS duration and transthoracic echocardiography, including mechanical synchrony indices, were evaluated.ResultsTwenty-five patients with true LBBB received LBBAP, while 13 without true LBBB received CVP. Seventeen patients received LBBAP, and 16 patients received CVP without mapping. Paced QRS duration after the implantation of LBBAP and CVP was significantly narrower in the mapping subgroup compared to the non-mapping subgroup. A significant increase in post-implantation left ventricular ejection fraction was observed in patients with LBBAP or CVP, and the mapping subgroup were better than the non-mapping subgroup. After a 12-month follow-up, atrioventricular, intraventricular, and biventricular synchronization were significantly improved in the mapping subgroup compared to non-mapping groups in both LBBAP and CVP.ConclusionIn our study, three-dimensional electroanatomical mapping was used to choose LBBAP or CVP for heart failure patients, which proved feasible, with better cardiac resynchronization in the long-term follow-up. Therefore, three-dimensional electroanatomical mapping before CRT appears to be a reliable method for heart failure patients with LBBB who are indicated for CRT.
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- 2022
13. VIRMA promotes nasopharyngeal carcinoma, tumorigenesis, and metastasis by upregulation of E2F7 in an m6A-dependent manner
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Zi-Qi Zheng, Zhuo-Hui Huang, Ye-Lin Liang, Wei-Hong Zheng, Cheng Xu, Zhi-Xuan Li, Na Liu, Pan-Yang Yang, Ying-Qin Li, Jun Ma, Ying Sun, Ling-Long Tang, and Denghui Wei
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Cell Biology ,Molecular Biology ,Biochemistry - Abstract
The N6-methyladenosine (m6A) modification possesses new and essential roles in tumor initiation and progression by regulating mRNA biology. However, the role of aberrant m6A regulation in nasopharyngeal carcinoma (NPC) remains unclear. Here, through comprehensive analyses of NPC cohorts from the GEO database (GES12452, GSE12349, and GSE61218) and our internal cohort, we identified that VIRMA, an m6A writer, is significantly upregulated in NPC and plays an essential role in tumorigenesis and metastasis of NPC, both in vitro and in vivo. High VIRMA expression served as a prognostic biomarker and was associated with poor outcomes in patients with NPC. Mechanistically, VIRMA mediated the m6A methylation of E2F7 3′-UTR, then IGF2BP2 bound and maintained the stability of E2F7 mRNA. An integrative high-throughput sequencing approach revealed that E2F7 drives a unique transcriptome distinct from the classical E2F family in NPC, which functioned as an oncogenic transcriptional activator. E2F7 cooperated with CBFB-recruited RUNX1 in a non-canonical manner to transactivate ITGA2, ITGA5, and NTRK1, strengthening Akt signaling-induced tumor-promoting effect. These results together demonstrate the role of VIRMA as an m6A writer that modulates E2F7 expression to control the transcription program of NPC, unveiling an m6A modulator that is essential for NPC tumorigenesis and metastasis.
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- 2023
14. m6A-enriched lncRNA LINC00839 promotes tumor progression by enhancing TAF15-mediated transcription of amine oxidase AOC1 in nasopharyngeal carcinoma
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Wei-Hong Zheng, Zhi-Qing Long, Zi-Qi Zheng, Lu-Lu Zhang, Ye-Lin Liang, Zhi-Xuan Li, Jia-Wei Lv, Jia Kou, Xiao-Hong Hong, Shi-Wei He, Rui Xu, Guan-Qun Zhou, Na Liu, Jun Ma, Ying Sun, Li Lin, and Denghui Wei
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Cell Biology ,Molecular Biology ,Biochemistry - Published
- 2023
15. A lncRNA signature associated with tumor immune heterogeneity predicts distant metastasis in locoregionally advanced nasopharyngeal carcinoma
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Ye-Lin Liang, Yuan Zhang, Xi-Rong Tan, Han Qiao, Song-Ran Liu, Ling-Long Tang, Yan-Ping Mao, Lei Chen, Wen-Fei Li, Guan-Qun Zhou, Yin Zhao, Jun-Yan Li, Qian Li, Sheng-Yan Huang, Sha Gong, Zi-Qi Zheng, Zhi-Xuan Li, Ying Sun, Wei Jiang, Jun Ma, Ying-Qin Li, and Na Liu
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Nasopharyngeal Carcinoma ,Multidisciplinary ,Gene Expression Profiling ,Biomarkers, Tumor ,Humans ,General Physics and Astronomy ,Nasopharyngeal Neoplasms ,RNA, Long Noncoding ,General Chemistry ,General Biochemistry, Genetics and Molecular Biology - Abstract
Increasing evidence has revealed the roles of long noncoding RNAs (lncRNAs) as tumor biomarkers. Here, we introduce an immune-associated nine-lncRNA signature for predicting distant metastasis in locoregionally advanced nasopharyngeal carcinoma (LA-NPC). The nine lncRNAs are identified through microarray profiling, followed by RT–qPCR validation and selection using a machine learning method in the training cohort (n = 177). This nine-lncRNA signature classifies patients into high and low risk groups, which have significantly different distant metastasis-free survival. Validations in the Guangzhou internal (n = 177) and Guilin external (n = 150) cohorts yield similar results, confirming that the signature is an independent risk factor for distant metastasis and outperforms anatomy-based metrics in identifying patients with high metastatic risk. Integrative analyses show that this nine-lncRNA signature correlates with immune activity and lymphocyte infiltration, which is validated by digital pathology. Our results suggest that the immune-associated nine-lncRNA signature can serve as a promising biomarker for metastasis prediction in LA-NPC.
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- 2022
16. Memory-Efficient Gaussian Fitting for Depth Images in Real Time
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Peter Zhi Xuan Li, Sertac Karaman, and Vivienne Sze
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- 2022
17. Seasonal and spatiotemporal differences in the public transport-based mobility of elderly population: A case study of Wuhu City in Anhui Province
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Feng Zhen, Zhi-xuan Li, Shanqi Zhang, and Yu Yang
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Geography ,Ecology ,business.industry ,Public transport ,Elderly population ,Geography, Planning and Development ,Earth and Planetary Sciences (miscellaneous) ,business ,Socioeconomics ,Nature and Landscape Conservation - Published
- 2021
18. Development and validation of a web‐based calculator to predict individualized conditional risk of site‐specific recurrence in nasopharyngeal carcinoma: Analysis of 10,058 endemic cases
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Si-Si Xu, Zhi-Xuan Li, Yan Ping Mao, Fo-Ping Chen, Xing-Li Yang, Wei-Hong Zheng, Jia Kou, Bin Deng, Zi-Qi Zheng, Jia-Wei Lv, Chen-Fei Wu, Ying Sun, Yue Chen, Li Lin, Dan-Wan Wen, and Jun Ma
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0301 basic medicine ,Oncology ,Conditional risk ,Cancer Research ,medicine.medical_specialty ,medicine.medical_treatment ,endemic nasopharyngeal carcinoma ,03 medical and health sciences ,0302 clinical medicine ,Conditional survival ,big data ,Internal medicine ,medicine ,Humans ,web‐based, individualized prediction model, overall survival, disease‐free survival, locoregional relapse‐free survival, distant metastasis‐free survival, NPC‐specific survival ,Stage (cooking) ,Neoplasm Staging ,Retrospective Studies ,Web-based calculator ,Internet ,conditional survival ,Nasopharyngeal Carcinoma ,business.industry ,Inverse probability weighting ,Nasopharyngeal Neoplasms ,Original Articles ,medicine.disease ,Radiation therapy ,030104 developmental biology ,Nasopharyngeal carcinoma ,030220 oncology & carcinogenesis ,Cohort ,Original Article ,Neoplasm Recurrence, Local ,business - Abstract
Background Conditional survival (CS) provides dynamic prognostic estimates by considering the patients existing survival time. Since CS for endemic nasopharyngeal carcinoma (NPC) is lacking, we aimed to assess the CS of endemic NPC and establish a web‐based calculator to predict individualized, conditional site‐specific recurrence risk. Methods Using an NPC‐specific database with a big‐data intelligence platform, 10,058 endemic patients with non‐metastatic stage I–IVA NPC receiving intensity‐modulated radiotherapy with or without chemotherapy between April 2009 and December 2015 were investigated. Crude CS estimates of conditional overall survival (COS), conditional disease‐free survival (CDFS), conditional locoregional relapse‐free survival (CLRRFS), conditional distant metastasis‐free survival (CDMFS), and conditional NPC‐specific survival (CNPC‐SS) were calculated. Covariate‐adjusted CS estimates were generated using inverse probability weighting. A prediction model was established using competing risk models and was externally validated with an independent, non‐metastatic stage I–IVA NPC cohort undergoing intensity‐modulated radiotherapy with or without chemotherapy (n = 601) at another institution. Results The median follow‐up of the primary cohort was 67.2 months. The 5‐year COS, CDFS, CLRRFS, CDMFS, and CNPC‐SS increased from 86.2%, 78.1%, 89.8%, 87.3%, and 87.6% at diagnosis to 87.3%, 87.7%, 94.4%, 96.0%, and 90.1%, respectively, for an existing survival time of 3 years since diagnosis. Differences in CS estimates between prognostic factor subgroups of each endpoint were noticeable at diagnosis but diminished with time, whereas an ever‐increasing disparity in CS between different age subgroups was observed over time. Notably, the prognoses of patients that were poor at diagnosis improved greatly as patients survived longer. For individualized CS predictions, we developed a web‐based model to estimate the conditional risk of local (C‐index, 0.656), regional (0.667), bone (0.742), lung (0.681), and liver (0.711) recurrence, which significantly outperformed the current staging system (P < 0.001). The performance of this web‐based model was further validated using an external validation cohort (median follow‐up, 61.3 months), with C‐indices of 0.672, 0.736, 0.754, 0.663, and 0.721, respectively. Conclusions We characterized the CS of endemic NPC in the largest cohort to date. Moreover, we established a web‐based calculator to predict the CS of site‐specific recurrence, which may help to tailor individualized, risk‐based, time‐adapted follow‐up strategies.
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- 2020
19. Long Noncoding RNA TINCR-Mediated Regulation of Acetyl-CoA Metabolism Promotes Nasopharyngeal Carcinoma Progression and Chemoresistance
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Ying Sun, Ying-Qin Li, Jun Ma, Jia-Li Guan, Rui-Qi Liu, Zhi-Xuan Li, Na Liu, Jia Kou, Fo-Ping Chen, Guan-Qun Zhou, Si-Si Xu, Jun-Yan Li, Jia-Wei Lv, Li Lin, Yue Chen, Xiao-Jun He, Lu-Lu Zhang, Feng Li, Zi-Qi Zheng, and Xu Liu
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0301 basic medicine ,Cancer Research ,RNA Stability ,Antineoplastic Agents ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,Downregulation and upregulation ,Acetyl Coenzyme A ,Cell Movement ,Protein-Arginine Deiminase Type 1 ,Cell Line, Tumor ,Lipid biosynthesis ,medicine ,Animals ,Humans ,Gene silencing ,Regulation of gene expression ,Mice, Inbred BALB C ,Nasopharyngeal Carcinoma ,biology ,Ubiquitination ,RNA-Binding Proteins ,Prognosis ,medicine.disease ,Xenograft Model Antitumor Assays ,Long non-coding RNA ,Gene Expression Regulation, Neoplastic ,030104 developmental biology ,Histone ,Oncology ,Nasopharyngeal carcinoma ,Drug Resistance, Neoplasm ,030220 oncology & carcinogenesis ,ATP Citrate (pro-S)-Lyase ,biology.protein ,Cancer research ,RNA, Long Noncoding ,Cisplatin ,Carcinogenesis - Abstract
Frontier evidence suggests that dysregulation of long noncoding RNAs (lncRNA) is ubiquitous in all human tumors, indicating that lncRNAs might have essential roles in tumorigenesis. Therefore, an in-depth study of the roles of lncRNA in nasopharyngeal carcinoma (NPC) carcinogenesis might be helpful to provide novel therapeutic targets. Here we report that lncRNA TINCR was significantly upregulated in NPC and was associated positively with poor survival. Silencing TINCR inhibited NPC progression and cisplatin resistance. Mechanistically, TINCR bound ACLY and protected it from ubiquitin degradation to maintain total cellular acetyl-CoA levels. Accumulation of cellular acetyl-CoA promoted de novo lipid biosynthesis and histone H3K27 acetylation, which ultimately regulated the peptidyl arginine deiminase 1 (PADI1)–MAPK–MMP2/9 pathway. In addition, insulin-like growth factor 2 mRNA-binding protein 3 interacted with TINCR and slowed its decay, which partially accounted for TINCR upregulation in NPC. These findings demonstrate that TINCR acts as a crucial driver of NPC progression and chemoresistance and highlights the newly identified TINCR–ACLY–PADI1–MAPK–MMP2/9 axis as a potential therapeutic target in NPC. Significance: TINCR-mediated regulation of a PADI1–MAPK–MMP2/9 signaling pathway plays a critical role in NPC progression and chemoresistance, marking TINCR as a viable therapeutic target in this disease.
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- 2020
20. Single-cell transcriptome profiling of the immune space-time landscape reveals dendritic cell regulatory program in polymicrobial sepsis
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Ren-qi Yao, Zhi-xuan Li, Li-xue Wang, Yu-xuan Li, Li-yu Zheng, Ning Dong, Yao Wu, Zhao-fan Xia, Timothy R. Billiar, Chao Ren, and Yong-ming Yao
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Mice ,Gene Expression Profiling ,Sepsis ,Medicine (miscellaneous) ,Animals ,COVID-19 ,Humans ,Dendritic Cells ,Pharmacology, Toxicology and Pharmaceutics (miscellaneous) ,T-Lymphocytes, Regulatory - Published
- 2022
21. Dual-Tap Computational Photography Image Sensor With Per-Pixel Pipelined Digital Memory for Intra-Frame Coded Multi-Exposure
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Zhengfan Xia, Mian Wei, Hui Feng Ke, Peter Zhi Xuan Li, Harel Haim, Rahul Gulve, Navid Sarhangnejad, Nikita Gusev, Manuel Moreno-Garcia, David Stoppa, Kiriakos N. Kutulakos, Roman Genov, Gairik Dutta, and Nikola Katic
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Pixel ,Computer science ,020208 electrical & electronic engineering ,Frame (networking) ,Photography ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,02 engineering and technology ,Frame rate ,Dot pitch ,Computational photography ,Photometric stereo ,0202 electrical engineering, electronic engineering, information engineering ,Electrical and Electronic Engineering ,Image sensor ,Image resolution ,Algorithm ,Surface reconstruction - Abstract
A coded-exposure-pixel image sensor for computational imaging applications is presented. Each frame exposure time is divided into ${N}$ subframes. Within each subframe, each pixel sorts photo-generated charge into two charge taps depending on that pixel’s 1-bit binary code. ${N}$ global updates of arbitrary pixel-wise codes are implemented in each frame to enable ${N}$ short global pixel-specific subexposures within one frame. To make these subexposures global, two latches per pixel are utilized in a pipelined fashion. The code for the next subframe is loaded into latch 1 in a row parallel fashion, while the code for the current subframe is being applied by latch 2 globally for photo-generated charge sorting during the current subexposure. A $280^{H}\times 176^{V}$ image sensor prototype with $11.2{\text{-}}\mu \text{m}$ pixel pitch has been fabricated in a $0.11{\text{-}}\mu \text{m}$ CMOS image sensor (CIS) technology. The image sensor has been demonstrated in two computational photography applications, each using only a single frame of a video: 1) computing both albedo (a measure of reflectivity) and 3-D depth maps by means of structured-light imaging and 2) computing surface normals (3-D orientations) map by means of photometric stereo imaging. These demonstrations experimentally validate some of the unique capabilities of this computational image sensor, such as accurate 3-D visual scene reconstruction using only one camera, while maintaining its native specifications: the full spatial resolution and the maximum frame rate.
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- 2019
22. Effect of downstream processing on the structure and rheological properties of xanthan gum generated by fermentation of Melaleuca alternifolia residue hydrolysate
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Zhi-Xuan Li, Jia-Yu Chen, Yi Wu, Zhong-Ying Huang, Shu-Ting Wu, Yun Chen, Jing Gao, Yong Hu, and Chao Huang
- Subjects
General Chemical Engineering ,General Chemistry ,Food Science - Published
- 2022
23. Efficient Computation of Map-scale Continuous Mutual Information on Chip in Real Time
- Author
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Keshav Gupta, Peter Zhi Xuan Li, Sertac Karaman, and Vivienne Sze
- Subjects
FOS: Computer and information sciences ,Computer Science - Robotics ,Hardware Architecture (cs.AR) ,Computer Science - Hardware Architecture ,Robotics (cs.RO) - Abstract
Exploration tasks are essential to many emerging robotics applications, ranging from search and rescue to space exploration. The planning problem for exploration requires determining the best locations for future measurements that will enhance the fidelity of the map, for example, by reducing its total entropy. A widely-studied technique involves computing the Mutual Information (MI) between the current map and future measurements, and utilizing this MI metric to decide the locations for future measurements. However, computing MI for reasonably-sized maps is slow and power hungry, which has been a bottleneck towards fast and efficient robotic exploration. In this paper, we introduce a new hardware accelerator architecture for MI computation that features a low-latency, energy-efficient MI compute core and an optimized memory subsystem that provides sufficient bandwidth to keep the cores fully utilized. The core employs interleaving to counter the recursive algorithm, and workload balancing and numerical approximations to reduce latency and energy consumption. We demonstrate this optimized architecture with a Field-Programmable Gate Array (FPGA) implementation, which can compute MI for all cells in an entire 201-by-201 occupancy grid ({\em e.g.}, representing a 20.1m-by-20.1m map at 0.1m resolution) in 1.55 ms while consuming 1.7 mJ of energy, thus finally rendering MI computation for the whole map real time and at a fraction of the energy cost of traditional compute platforms. For comparison, this particular FPGA implementation running on the Xilinx Zynq-7000 platform is two orders of magnitude faster and consumes three orders of magnitude less energy per MI map compute, when compared to a baseline GPU implementation running on an NVIDIA GeForce GTX 980 platform. The improvements are more pronounced when compared to CPU implementations of equivalent algorithms.
- Published
- 2021
24. Treatment and bioresources utilization of traditional Chinese medicinal herb residues: Recent technological advances and industrial prospect
- Author
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Jing Gao, Yong Hu, Chao Huang, Yi Wu, Zhi-Xuan Li, and Zhong-Ying Huang
- Subjects
Solid waste management ,China ,Environmental Engineering ,Plants, Medicinal ,Environmental pollution ,General Medicine ,Management, Monitoring, Policy and Law ,Environmentally friendly ,Sustainability ,Medicinal herbs ,Business ,Biochemical engineering ,Medicine, Chinese Traditional ,Waste Management and Disposal - Abstract
Traditional Chinese medicine (TCM) has wide application and important functions in curing many diseases, but a great number of herb residues are usually generated after its manufacture and usage. Without proper and timely treatment, these traditional Chinese medicinal herb (TCMH) residues will cause some environmental pollution. In addition to treatment, bioresources utilization of TCMH residues is also important for its great potential as a suitable feedstock for the production of energy, materials, and chemicals. In this situation, advanced and well-designed solid waste management is important to make the TCM industry environmentally friendly and economically attractive. In this review article, the recent progress focusing on various methods for TCMH residues treatment and bioresources utilization are introduced in detail. In particular, the technologies for thermochemical conversion and biochemical conversion of TCMH residues are mainly focused on in order to show how to fulfill effective and efficient bioresources utilization. Besides, some other technologies which are suitable for the treatment and bioresources utilization of TCMH residues are presented as well. Finally, some industrial prospects are given from the economic, operational, and environmental aspects for the further development of treatment and bioresources utilization of TCMH residues. Overall, this work can provide some systematical and comprehensive information for the development of technologies that help sustainably manage the herb residues generated in the TCM industry.
- Published
- 2021
25. Research on the Development and Countermeasures of Higher Vocational Education Management under the Background of the Integration of Production and Education
- Author
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Jian-fu Ma, Yang Liu, and Zhi-xuan Li
- Subjects
Economic growth ,Vocational education ,Production (economics) ,Business - Published
- 2021
26. Evaluation of Measurement Uncertainty from Pour Plate Method in Bacterial Enumeration in Water
- Author
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Zhi Xuan Li, Wei Ma, Yi Jun Kong, Sin Neng Chio, Chang Li Zhang, Chi Tou Lei, and She Xia Zhan
- Subjects
General Medicine - Published
- 2022
27. Normal tissue complication probability (NTCP) models for predicting temporal lobe injury after intensity-modulated radiotherapy in nasopharyngeal carcinoma: A large registry-based retrospective study from China
- Author
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Yan Ping Mao, Xiao-Dan Huang, Li Lin, Xing-Li Yang, Ying Sun, Jun Ma, Dan-Wan Wen, Chun-yan Chen, Chen-Fei Wu, Zhi-Xuan Li, Guan-Qun Zhou, Fo-Ping Chen, Si-Si Xu, and Jia Kou
- Subjects
China ,medicine.medical_treatment ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Interquartile range ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Registries ,Aged ,Probability ,Retrospective Studies ,Nasopharyngeal Carcinoma ,Receiver operating characteristic ,Proportional hazards model ,business.industry ,Nasopharyngeal Neoplasms ,Radiotherapy Dosage ,Hematology ,Nomogram ,medicine.disease ,Confidence interval ,Temporal Lobe ,Radiation therapy ,Oncology ,Nasopharyngeal carcinoma ,030220 oncology & carcinogenesis ,T-stage ,Radiotherapy, Intensity-Modulated ,business ,Nuclear medicine - Abstract
Purpose To develop predictive models with dosimetric and clinical variables for temporal lobe injury (TLI) in nasopharyngeal carcinoma (NPC) after intensity-modulated radiotherapy (IMRT). Materials and methods Data of 8194 NPC patients who received IMRT-based treatment were retrospectively reviewed. TLI was diagnosed by magnetic resonance imaging. Dosimetric factors were selected by penalized regression and machine learning, with area under the receiver operating curve (AUC) calculated. Cox proportional hazards models containing the most predictive dosimetric factor with/without clinical variables were performed. A nomogram was generated as a visualization of Cox regression for predicting TLI-free survival. Results During median follow-up of 66.8 months (interquartile range [IQR] 54.2–82.2 months), 12.1% of patients (989/8194) developed TLI. Median latency from IMRT to TLI was 36 months (IQR 28–47 months). D0.5cc (dose delivered to 0.5-cm3 temporal-lobe volume) was the most predictive dosimetric factor (AUC: 0.799). Tolerance dose for 5% and 50% probabilities to develop TLI in 5 years were 65.06 Gy (95% confidence interval [CI]: 64.19–65.92) and 89.75 Gy (95% CI: 87.39–92.11), respectively. A nomogram comprising age, T stage, and D0.5cc significantly outperformed the model with only D0.5cc in predicting TLI (C-index: 0.78 vs. 0.737 in train set; 0.775 vs. 0.73 in test set; both P Conclusions D0.5cc of 65.06 Gy was the tolerance dose of the temporal lobe. Reducing D0.5cc decreased risk of TLI, especially in older patients with advanced T stage. The nomogram could predict TLI precisely and allow individualized follow-up management.
- Published
- 2020
28. Individualized cumulative cisplatin dose for locoregionally-advanced nasopharyngeal carcinoma patients receiving induction chemotherapy and concurrent chemoradiotherapy
- Author
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Fo-Ping Chen, Wei-Hong Zheng, Si-Si Xu, Bin-ying Peng, Li Lin, Dan-Wan Wen, Ying Sun, Guan-Qun Zhou, Jia Kou, Xing-Li Yang, and Zhi-Xuan Li
- Subjects
Oncology ,Adult ,Male ,Cancer Research ,medicine.medical_specialty ,Adolescent ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Internal medicine ,Medicine ,Humans ,Stage (cooking) ,030223 otorhinolaryngology ,Lymph node ,Aged ,Nasopharyngeal Carcinoma ,business.industry ,Induction chemotherapy ,Chemoradiotherapy ,Induction Chemotherapy ,Middle Aged ,medicine.disease ,Primary tumor ,Progression-Free Survival ,Concurrent chemoradiotherapy ,medicine.anatomical_structure ,Nasopharyngeal carcinoma ,030220 oncology & carcinogenesis ,Cisplatin Dose ,Propensity score matching ,Female ,Oral Surgery ,Cisplatin ,business - Abstract
Objectives To screen subgroup potentially benefiting from cumulative cisplatin dose (CCD) ≥ 200 mg/m2 during concurrent chemoradiotherapy (CCRT) of patients with locoregionally-advanced nasopharyngeal carcinoma (LA-NPC) receiving induction chemotherapy (IC) and CCRT. Materials and Methods In total, 2 063 patients with non-disseminated LA-NPC diagnosed from 2009 to 2015 receiving IC plus CCRT were enrolled. Patients were restaged based on proposed stage groupings and risk groupings was established. After propensity score matching, survival outcomes were compared within different risk groupings with 200 mg/m2 CCD. Post-IC gross primary tumor (GTVp) and lymph node (GTVnd) volumes were calculated from planning computed tomography. The role of risk groupings and post-IC tumor volume to CCD was explored. Results Compared with the low-risk group, the high-risk group showed poor survival outcomes in terms of 5-year progression-free survival (PFS), overall survival (OS), distant metastasis-free survival (DMFS), and locoregional relapse-free survival (LRRFS). CCD ≥ 200 mg/m2 improved survival in terms of 5-year PFS, OS and DMFS in the high-risk group but not in the low-risk group. High-risk patients with unfavorable response to IC benefited from CCD ≥ 200 mg/m2 with respect to PFS and DMFS; while those in low-risk group or with favorable response to IC didn’t. Conclusions Risk groupings was effective for risk stratification. Combining risk groupings and post-IC tumor volume is a simple and useful method to guide individualized CCD treatment of CCRT for patients with LA-NPC receiving IC and CCRT. CCD ≥ 200 mg/m2 may be indicated for high-risk patients with unfavorable response to IC.
- Published
- 2019
29. Prognostic potential of liquid biopsy tracking in the posttreatment surveillance of patients with nonmetastatic nasopharyngeal carcinoma
- Author
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Guan-Qun Zhou, Chen-Fei Wu, Zi-Qi Zheng, Xiao-Dan Huang, Dan-Wan Wen, Zhi-Xuan Li, Jia-Wei Lv, Fo-Ping Chen, Yue Chen, Jia Kou, Ying Sun, Xiao-Jun He, and Li Lin
- Subjects
Adult ,Male ,Cancer Research ,medicine.medical_specialty ,Epstein-Barr Virus Infections ,Herpesvirus 4, Human ,Databases, Factual ,medicine.medical_treatment ,Disease ,Gastroenterology ,Sensitivity and Specificity ,Virus ,03 medical and health sciences ,0302 clinical medicine ,Interquartile range ,Internal medicine ,medicine ,Humans ,030212 general & internal medicine ,Liquid biopsy ,Neoplasm Metastasis ,Pathological ,Nasopharyngeal Carcinoma ,business.industry ,Incidence ,Liquid Biopsy ,Distant metastasis ,Reproducibility of Results ,Nasopharyngeal Neoplasms ,medicine.disease ,Prognosis ,Radiation therapy ,Oncology ,Nasopharyngeal carcinoma ,030220 oncology & carcinogenesis ,Population Surveillance ,DNA, Viral ,Female ,Neoplasm Recurrence, Local ,business - Abstract
BACKGROUND The current study was performed to investigate whether circulating cell-free Epstein-Barr virus DNA (cfEBV DNA) would be useful for posttreatment surveillance in patients with nasopharyngeal carcinoma (NPC). METHODS The authors identified a total of 1984 nondisseminated NPC patients from an institutional big-data research platform. Blood samples were collected within 3 months of the completion of radiotherapy and every 3 to 12 months thereafter for cfEBV DNA analysis. Patients were followed until disease recurrence was detected or for a median of 60 months. Diagnostic performance was assessed by calculating the sensitivity, specificity, and accuracy based on the clinical detection of disease recurrence by conventional surveillance modalities (imaging scans and pathological examination). RESULTS During follow-up, a total of 767 patients (38.7%) had detectable cfEBV DNA. The recurrence rate among these patients was 63.8% (489 of 767 patients), which was significantly higher than that in patients with undetectable cfEBV DNA (8.6%; 105 of 1217 patients). cfEBV DNA sensitivity, specificity, and accuracy were 68.8%, 80.0%, and 78.2%, respectively, for local recurrence; 80.2%, 80.0%, and 85.9%, respectively, for regional recurrence; and 91.1%, 80.0%, and 92.8%, respectively, for distant metastasis. cfEBV DNA was found to have higher sensitivity for the detection of extrapulmonary metastases (94.9%-96.5%) compared with pulmonary metastases (78.4%). It is interesting to note that among the patients with disease recurrence with detectable cfEBV DNA, positive cfEBV DNA results preceded radiological and/or clinical evidence of disease recurrence by a median of 2.3 months (interquartile range, 0.1-9.5 months). In addition, of the 278 cfEBV DNA-positive patients who did not develop disease recurrence, 227 (81.7%) had transiently positive cfEBV DNA that fell to undetectable levels during long-term monitoring. CONCLUSIONS Plasma cfEBV DNA in patients with NPC appears to be an early sign of tumor recurrence, especially extrapulmonary metastases.
- Published
- 2019
30. In-situ fermentation with gellan gum adding to produce bacterial cellulose from traditional Chinese medicinal herb residues hydrolysate
- Author
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Jing Gao, Yan-Qing Lu, Yi Wu, Tu-Yu Huang, Zhi-Xuan Li, Zhong-Ying Huang, Yong Hu, and Chao Huang
- Subjects
China ,Polymers and Plastics ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Hydrolysate ,chemistry.chemical_compound ,Spectroscopy, Fourier Transform Infrared ,Materials Chemistry ,Food science ,Medicine, Chinese Traditional ,Cellulose ,Beneficial effects ,Inhibitory effect ,Plants, Medicinal ,Hydrolysis ,Polysaccharides, Bacterial ,Organic Chemistry ,021001 nanoscience & nanotechnology ,Rhodospirillaceae ,Taonella mepensis ,Gellan gum ,0104 chemical sciences ,chemistry ,Bacterial cellulose ,Fermentation ,Microscopy, Electron, Scanning ,Medicinal herbs ,0210 nano-technology - Abstract
In this study, bacterial cellulose was synthesized by Taonella mepensis from traditional Chinese medicinal herb residues hydrolysate. To overcome the inhibitory effect of fermentation environment, in-situ fermentation with gellan gum adding was carried out for the first time. After 10 days' static fermentation, both high-acyl gellan gum and low-acyl gellan gum adding showed certain beneficial effects for bacterial cellulose production that the highest bacterial cellulose yield (0.866 and 0.798 g/L, respectively) was 59% and 47% higher than that (0.543 g/L) without gellan gum adding. Besides, gellan gum based bacterial cellulose showed some better texture characteristics. Gellan gum was loaded in the nano network of bacterial cellulose, and gellan gum adding had some influence on the crystal structure and thermal degradation behaviors of bacterial cellulose but affected little on its functional groups. Overall, this in-situ fermentation technology is attractive for bacterial cellulose production from low-cost but inhibitory substrates.
- Published
- 2021
31. Transfer learning method for bearing fault diagnosis based on fully convolutional conditional Wasserstein adversarial Networks
- Author
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Yi Sheng Zou, Ke Ming Shi, Guo Fu Ding, Yong Zhi Liu, and Zhi Xuan Li
- Subjects
Computer science ,02 engineering and technology ,Fault (power engineering) ,Machine learning ,computer.software_genre ,01 natural sciences ,Field (computer science) ,law.invention ,Domain (software engineering) ,law ,Classifier (linguistics) ,0202 electrical engineering, electronic engineering, information engineering ,Electrical and Electronic Engineering ,Instrumentation ,Bearing (mechanical) ,business.industry ,Applied Mathematics ,020208 electrical & electronic engineering ,010401 analytical chemistry ,Process (computing) ,Condensed Matter Physics ,0104 chemical sciences ,Artificial intelligence ,Focus (optics) ,Transfer of learning ,business ,computer - Abstract
The diagnostic accuracy of existing transfer learning-based bearing fault diagnosis methods is high in the source condition, but accuracy in the target condition is not guaranteed. These methods mainly focus on the whole distribution of bearing source domain data and target condition data, ignoring the transfer learning of each kind of bearing fault data, which may lead to lower diagnostic accuracy. To overcome these limitations, we propose a transfer learning fault diagnosis model based on a deep Fully Convolutional Conditional Wasserstein Adversarial Network (FCWAN). The proposed model addresses the described problems separately: (1) A random-sampling map classification and difference classifier are used to handle the first limitation. (2) A label is introduced into the domain of adversarial learning to strengthen the supervision of the learning process and the effect of category field alignment, thus overcoming the second limitation. Experimental results demonstrate the superiority of this method over existing methods.
- Published
- 2021
32. Treatment of wastewater generated from traditional Chinese medicine processing and utilization: Recent advances and future outlook
- Author
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Yi Wu, Zhi-Xuan Li, Yong Hu, Zhong-Ying Huang, Chao Huang, and Jing Gao
- Subjects
Engineering ,Renewable Energy, Sustainability and the Environment ,business.industry ,020209 energy ,Strategy and Management ,05 social sciences ,02 engineering and technology ,Building and Construction ,Traditional Chinese medicine ,Industrial and Manufacturing Engineering ,Wastewater ,Risk analysis (engineering) ,050501 criminology ,0202 electrical engineering, electronic engineering, information engineering ,business ,0505 law ,General Environmental Science - Abstract
Nowadays, traditional Chinese medicine plays an important role in curing many diseases, and its market expands quickly due to the potential great profits it can bring. To be an attractive industry, both economic and environmental aspects should be considered. As wastewater is usually generated from traditional Chinese medicine processing and utilization, its treatment is one of the hot research topics in environmental engineering currently. Many technologies can be applied for the treatment of this wastewater, but the technical background and performance vary greatly especially for different kinds of wastewater. In this situation, a systematical and comprehensive summary for the development of these technologies is necessary. In this review article, the sources of wastewater from the processing and utilization of traditional Chinese medicine are introduced firstly to show where this wastewater comes from. And then, the recent advances on the technologies for the treatment of this wastewater are introduced in detail to show what technologies can be applied. At last, the future outlook for the development of these treatment technologies is given to discuss how to fulfill their industrial application. Overall, this review article can present some important information for building a clean and sustainable traditional Chinese medicine industry.
- Published
- 2021
33. Comprehensive characterization of the alternative splicing landscape in head and neck squamous cell carcinoma reveals novel events associated with tumorigenesis and the immune microenvironment
- Author
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Jia Kou, Guan-Qun Zhou, Jun Ma, Jia-Li Guan, Feng Li, Zi-Qi Zheng, Fo-Ping Chen, Xiao-Jun He, Rui-Qi Liu, Ying Sun, Jia-Wei Lv, Zhi-Xuan Li, Zhuo-Hui Wei, Li Lin, Lu-Lu Zhang, and Xiao-Dan Huang
- Subjects
0301 basic medicine ,Male ,Chemokine ,Carcinogenesis ,Medicine (miscellaneous) ,medicine.disease_cause ,head and neck squamous cell carcinoma ,Disease-Free Survival ,Cohort Studies ,03 medical and health sciences ,Splicing factor ,alternative splicing ,0302 clinical medicine ,Immune system ,medicine ,Biomarkers, Tumor ,Tumor Microenvironment ,Humans ,immune microenvironment ,Pharmacology, Toxicology and Pharmaceutics (miscellaneous) ,Viral Carcinogenesis ,biology ,Squamous Cell Carcinoma of Head and Neck ,Gene Expression Profiling ,Alternative splicing ,Papillomavirus Infections ,medicine.disease ,Prognosis ,Head and neck squamous-cell carcinoma ,tumorigenesis ,030104 developmental biology ,Head and Neck Neoplasms ,030220 oncology & carcinogenesis ,RNA splicing ,Cancer research ,biology.protein ,Female ,Research Paper ,genome-wide analysis - Abstract
Alternative splicing (AS) has emerged as a key event in tumor development and microenvironment formation. However, comprehensive analysis of AS and its clinical significance in head and neck squamous cell carcinoma (HNSC) is urgently required. Methods: Genome-wide profiling of AS events using RNA-Seq data from The Cancer Genome Atlas (TCGA) program was performed in a cohort of 464 patients with HNSC. Cancer-associated AS events (CASEs) were identified between paired HNSC and adjacent normal tissues and evaluated in functional enrichment analysis. Splicing networks and prognostic models were constructed using bioinformatics tools. Unsupervised clustering of the CASEs identified was conducted and associations with clinical, molecular and immune features were analyzed. Results: We detected a total of 32,309 AS events and identified 473 CASEs in HNSC; among these, 91 were validated in an independent cohort (n = 15). Functional protein domains were frequently altered, especially by CASEs affecting cancer drivers, such as PCSK5. CASE parent genes were significantly enriched in pathways related to HNSC and the tumor immune microenvironment, such as the viral carcinogenesis (FDR < 0.001), Human Papillomavirus infection (FDR < 0.001), chemokine (FDR < 0.001) and T cell receptor (FDR
- Published
- 2019
34. Long Noncoding RNA FAM225A Promotes Nasopharyngeal Carcinoma Tumorigenesis and Metastasis by Acting as ceRNA to Sponge miR-590-3p/miR-1275 and Upregulate ITGB3
- Author
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Zi-Qi Zheng, Lu-Lu Zhang, Jun Ma, Na Liu, Ying-Qin Li, Li Lin, Rui-Qi Liu, Zhi-Xuan Li, Xiao-Jun He, Ying Sun, Xin Wen, Guan-Qun Zhou, Jia-Wei Lv, Xiao-Dan Huang, Fo-Ping Chen, Jian Zhang, and Jia Kou
- Subjects
0301 basic medicine ,Cancer Research ,Lung Neoplasms ,Carcinogenesis ,Mice, Nude ,Apoptosis ,Biology ,medicine.disease_cause ,03 medical and health sciences ,Mice ,0302 clinical medicine ,Downregulation and upregulation ,Cell Movement ,otorhinolaryngologic diseases ,medicine ,Tumor Cells, Cultured ,Animals ,Humans ,PI3K/AKT/mTOR pathway ,Cell Proliferation ,Regulation of gene expression ,Mice, Inbred BALB C ,Nasopharyngeal Carcinoma ,Microarray analysis techniques ,Competing endogenous RNA ,Integrin beta3 ,Nasopharyngeal Neoplasms ,medicine.disease ,Prognosis ,Xenograft Model Antitumor Assays ,Long non-coding RNA ,Gene Expression Regulation, Neoplastic ,stomatognathic diseases ,MicroRNAs ,030104 developmental biology ,Oncology ,Nasopharyngeal carcinoma ,030220 oncology & carcinogenesis ,Cancer research ,Female ,RNA, Long Noncoding ,Transcriptome - Abstract
Long noncoding RNAs (lncRNA) play important roles in the tumorigenesis and progression of cancers. However, the clinical significance of lncRNAs and their regulatory mechanisms in nasopharyngeal carcinogenesis (NPC) are largely unknown. Here, based on a microarray analysis, we identified 384 dysregulated lncRNAs, of which, FAM225A was one of the most upregulated lncRNAs in NPC. FAM225A significantly associated with poor survival in NPC. N(6)-Methyladenosine (m6A) was highly enriched within FAM225A and enhanced its RNA stability. FAM225A functioned as an oncogenic lncRNA that promoted NPC cell proliferation, migration, invasion, tumor growth, and metastasis. Mechanistically, FAM225A functioned as a competing endogenous RNA (ceRNA) for sponging miR-590-3p and miR-1275, leading to the upregulation of their target integrin β3 (ITGB3), and the activation of FAK/PI3K/Akt signaling to promote NPC cell proliferation and invasion. In summary, our study reveals a potential ceRNA regulatory pathway in which FAM225A modulates ITGB3 expression by binding to miR-590-3p and miR-1275, ultimately promoting tumorigenesis and metastasis in NPC. Significance: These findings demonstrate the clinical significance of the lncRNA FAM225A in nasopharyngeal carcinoma (NPC) and the regulatory mechanism involved in NPC development and progression, providing a novel prognostic indicator and promising therapeutic target.
- Published
- 2019
35. Design idea of risk monitoring and evaluation system for industrial park oriented to territorial spatial safety
- Author
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Zhe-rui Li, Yi-ming Zhang, Shan-qi Zhang, Zhi-xuan Li, Feng Zhen, and Zhe Cui
- Subjects
Evaluation system ,business.industry ,Industrial park ,Environmental resource management ,Business ,Risk monitoring ,General Agricultural and Biological Sciences - Published
- 2021
36. Thermal Error Compensation on Boring & Milling Machining Center Feed System Based on PMAC
- Author
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Zhi Xuan Li, Jun Sun, and Xing Liu
- Subjects
Engineering ,Processing accuracy ,business.product_category ,business.industry ,General Engineering ,Control engineering ,PMAC ,Machine tool ,Compensation (engineering) ,Tool path ,Machining ,Thermal ,Center (algebra and category theory) ,business - Abstract
Aiming to deal with thermal error of NC machine tool which can cause reduce of machining accuracy, this paper uses an external error compensation which interacts with NC controllers and PMAC multi-axis and then revises the tool path by adding the error tested in real-time by PMAC card. The processing accuracy is improved eventually. This method can compensate machine geometric errors and thermal errors in real-time. Comparing with other methods of error preventing, this method is more effective and affordable.
- Published
- 2014
37. Three-dimensional numerical simulation of electromagnetic diffusion problem and magnetization effects
- Author
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Ming-Xin Yue, Zhi-Xuan Li, and Guan-Qun Zhou
- Subjects
Physics ,Magnetization ,Computer simulation ,Diffusion problem ,General Physics and Astronomy ,Mechanics - Abstract
We present a newly developed algorithm for three-dimensional (3D) magnetotelluric model based on the vector finite element method. In this paper, unstructured grids which are composed of irregular tetrahedrons are used in our finite element model, which can be refined locally and adaptively according to the complex geometry of computational domain or subsurface structure. For obtaining more accurate solutions, secondary field rather than total field is numerically computed, which makes the errors limited to relatively small secondary field. Traditional node-based finite element method does not satisfy the condition that the normal electrical field is discontinuous at the interface of electric separatrix and the electrical current density is divergence-free throughout the regions without source, which obviously violates Maxwell equations. In order to overcome these drawbacks of node-based finite element, vector finite element method is employed to solve the secondary field-based partial differential equation. Moreover, in this study, the heterogeneous permeability is taken into consideration in our algorithm, as a consequence, which can deal with heterogeneous permeability model. The accuracy of our approach is verified by comparing with previously published numerical simulations of a COMMEMI-3D model. The advantages of our approach are also illustrated by the numerical simulations of model with arbitrary topography and complicated anomalous body. In addition, the simulation results of the irregular anomaly and the complex model of arbitrary terrain are both ideal results. It proves that the effect of 3D terrain is more serious and complex than that of two-dimensional (2D) terrain, and dealing with 3D models or data with 2D algorithm may bring in large errors. In the area where the magnetic permeability is abnormal, the magnetic permeability has an important influence on the numerical simulation results, and the magnetic permeability must be treated as an independent parameter in the magnetotellurics survey.
- Published
- 2019
38. Analysis of a 66kV Transformer Insulation Breakdown Accident
- Author
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Chuan Bo Liu, Qing Hao Wang, Hua Zhang, Zhi Xuan Li, Ping Li, Ning Zhang, and Xiao Yu Cui
- Subjects
Isolation transformer ,Engineering ,business.industry ,Flyback transformer ,Electrical engineering ,General Medicine ,Structural engineering ,Distribution transformer ,Lightning arrester ,law.invention ,law ,Energy efficient transformer ,business ,Delta-wye transformer ,Transformer ,Transformer effect - Abstract
The total reflection of the wave will occur twice and the lightning over-voltage will be increased by 2 times when the lightning wave along the line reached in the disconnect switch are derived through the analysis of the accident 66kV transformer insulation breakdown. This will lead to the switch breakdown and discharge to be grounded. In this case the breaker is between the arrester and the transformer and the transformer will withstand 2 times arrester residual voltage result in the transformer breakdown. Finally, effective preventive measures combined with the practical experience are proposed.
- Published
- 2013
39. A compact low-power VLSI architecture for real-time sleep stage classification
- Author
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Roman Genov, Peter Zhi Xuan Li, and Hossein Kassiri
- Subjects
Engineering ,business.industry ,020208 electrical & electronic engineering ,02 engineering and technology ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Filter (video) ,Microsystem ,Brain stimulation ,0202 electrical engineering, electronic engineering, information engineering ,State (computer science) ,Sleep (system call) ,Sensitivity (control systems) ,Latency (engineering) ,business ,Field-programmable gate array ,Computer hardware - Abstract
A wearable-optimized implementation of a sleep stage classification algorithm that has low detection latency, high detection accuracy and low resource consumption is developed and successfully implemented on a low-power FPGA microsystem for closed-loop electrical brain stimulation. This implementation uses EEG and EMG signals as inputs and classifies stages of sleep. By structurally merging multichannel FIR and window averaging filters into one reconfigurable, multipurpose filter, the new implementation maintains a sleep detection accuracy of 79.7%, a REM detection sensitivity of 98.2%, a REM detection specificity of 89.2% and a detection latency of 0.982 ms, while consuming 6.8 times fewer logic elements and 96.28% less power compared with the current state of the art implementation. With its high performance and low resource usage, this implementation enables a low-power wearable microsystem to perform neural recording, real-time REM sleep stage detection, and closed-loop responsive brain stimulation as a tool to study the mechanisms of neurodegenerative diseases.
- Published
- 2016
40. Study of the Minimization of Instantaneous Equivalent Fuel Consumption Control Strategy of HEV
- Author
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Peng Yu Wang, Qing Nian Wang, Qing Lin Zhu, and Zhi Xuan Li
- Subjects
Battery (electricity) ,Engineering ,business.industry ,General Engineering ,Control engineering ,Computer Science::Hardware Architecture ,Software ,Regenerative brake ,Control theory ,Range (aeronautics) ,Fuel efficiency ,Penalty method ,Minification ,business ,Computer Science::Operating Systems ,Energy (signal processing) - Abstract
A control strategy which based on minimum instantaneous equivalent fuel consumption was proposed in this paper. The important parameters that affected the calculation of instantaneous fuel consumption were analyzed. The important parameters include battery equivalent fuel consumption, penalty function to maintain the battery SOC and the revise of the regenerative braking energy. More precise expression of minimum instantaneous fuel consumption was deduced. Under the simulation platform of ADVISOR software, orthogonal optimization of parameters was performed and the range of important parameters in the optimization of expression was determined.
- Published
- 2012
41. The Research on Deposition Saturation of Disc Suspension Porcelain Insulator
- Author
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Zhi Xuan Li, Qing Hao Wang, Tian Shu Hai, Hu Yang, Shao Yong Wu, Feng Shi, Peng Fei Cheng, Dong Wei Huang, Chang Xin Ge, and Shuo Cheng
- Subjects
Condensed Matter::Quantum Gases ,Materials science ,General Engineering ,Electronic engineering ,Condensed Matter::Strongly Correlated Electrons ,Insulator contamination ,Insulator (electricity) ,Porcelain insulator ,Composite material ,Saturation (chemistry) ,Salt deposit density - Abstract
The equivalent salt deposit density (ESDD) is an important characteristic of our country which is used to measure insulator deposition level. The contamination of the insulator would reach saturation after a period of time.In order to increase the specific creepage distance, disc suspension porcelain insulator lower surface inward concave, which makes the rain washing the upper surface difficult, that cause the saturation time of lower surface longer than upper surface .For studying the operation insulator contamination saturation time and reflecting the ESDD of the actual operation line accurately,this paper adopts a comparison method between empty hanging insulator surface and operation insulator surface to measure the ESDD , the field experimental results further verify that the saturated time of disc suspension insulator lower surface is longer, so as to lay the foundation for the ESDD measurement.
- Published
- 2014
42. Application Research on High-Tech Tax Preference Policy of Manufacturing
- Author
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Shu Fen Cui, Zhi Xuan Li, and Min Du
- Subjects
Double taxation ,ComputingMilieux_LEGALASPECTSOFCOMPUTING ,General Medicine ,Tax reform ,Turnover tax ,ComputingMilieux_GENERAL ,Value-added tax ,Ad valorem tax ,Tax credit ,State income tax ,Business ,ComputingMilieux_MISCELLANEOUS ,Industrial organization ,Indirect tax - Abstract
This paper discusses the application research on high-tech tax preference policy of manufacturing. Analyzing high-tech tax preference policy of the current manufacturing;The disadvantages of high-tech tax preference policy in production manufacturing;Suggestions for further implementing the high-tech tax preference policy of manufacturing.
- Published
- 2013
43. Isolation and characterization of polymorphic microsatellite loci in Ping’s juniper Juniperus pingii
- Author
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Ma-Li Wang, Min-Feng Fang, Zhan-Lin Liu, Yu-Jin Wang, Gui-Fang Zhao, Zhonghu Li, and Zhi-Xuan Li
- Subjects
Genetics ,Genetic diversity ,Linkage disequilibrium ,education.field_of_study ,biology ,Population ,Juniperus pingii ,Population genetics ,Locus (genetics) ,biology.organism_classification ,Microsatellite ,Juniper ,education ,Ecology, Evolution, Behavior and Systematics - Abstract
Juniperus pingii (Ping's juniper) is a threatened conifer species endemic to China, and a good knowledge of its population genetics would be essential to formulate effective conservation strategies. In this study, ten polymorphic microsatellite loci were isolated, and characterized for their utility using 58 individuals from two geographically distinct populations. In population XGLL, the number of alleles per locus (N (A)) ranged from four to 11, with an average of 6.2 per locus; the observed (H (O)) and expected heterozygosity (H (E)) ranged from 0.205 to 0.854 and from 0.423 to 0.754, with an average of 0.347 and 0.527, respectively. In population BM, N (A), H (O) and H (E) ranged from four to eight, from 0.198 to 0.454 and from 0.339 to 0.853, with an average of 5.8, 0.294 and 0.556, respectively. Following the sequential Bonferroni correction, only one locus (Jp07) was found to deviate significantly from Hardy-Weinberg equilibrium within population XGLL, and no significant linkage disequilibrium was detected in any of these loci within either population. These polymorphic microsatellite loci would be useful for population genetic studies of this conifer species.
- Published
- 2013
44. A digital pulsar backend based on FPGA
- Author
-
Ali Esamdin, Zhi-Xuan Li, Lan Chen, Jin-Lin Han, Longfei Hao, Xiuzhong Zhang, Jintao Luo, and Yajun Wu
- Subjects
Physics ,L band ,Astrophysics::High Energy Astrophysical Phenomena ,Bandwidth (signal processing) ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy ,Astronomy and Astrophysics ,Astrophysics ,01 natural sciences ,law.invention ,Telescope ,Pulsar ,Space and Planetary Science ,Observatory ,Millisecond pulsar ,law ,0103 physical sciences ,S band ,010306 general physics ,Field-programmable gate array ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics - Abstract
A digital pulsar backend based on a Field Programmable Gate Array (FPGA) is developed. It is designed for incoherent de-dispersion of pulsar observations and has a maximum bandwidth of 512 MHz. The channel bandwidth is fixed to 1 MHz, and the highest time resolution is 10 μs. Testing observations were carried out using the Urumqi 25-m telescope administered by Xinjiang Astronomical Observatory and the Kunming 40-m telescope administered by Yunnan Observatories, targeting PSR J0332+5434 in the L band and PSR J0437–4715 in the S band, respectively. The successful observation of PSR J0437–4715 demonstrates its ability to observe millisecond pulsars.
- Published
- 2017
45. Three antinematodal diterpenes from Euphorbia kansui
- Author
-
Zhi Xuan Li, Shuhei Nakajima, Hiroshi Kanzaki, Naomichi Baba, Minoru Izumi, Jian Xiao Shi, Kazuyoshi Kawazu, and Teruhiko Nitoda
- Subjects
Models, Molecular ,Spectrometry, Mass, Electrospray Ionization ,Magnetic Resonance Spectroscopy ,Spectrophotometry, Infrared ,diterpenoid ,Bursaphelenchus xylophilus ,ingenane ,Spectrometry, Mass, Fast Atom Bombardment ,Applied Microbiology and Biotechnology ,Biochemistry ,Plant Roots ,Analytical Chemistry ,Euphorbia ,Botany ,Molecular Biology ,Traditional medicine ,biology ,antinematodal activity ,Antinematodal Agents ,Organic Chemistry ,General Medicine ,biology.organism_classification ,Euphorbia kansui ,Nematode ,Indicators and Reagents ,Spectrophotometry, Ultraviolet ,Chromatography, Thin Layer ,Diterpenes ,Biotechnology - Abstract
Three compounds, 20-O-acetyl-[3-O-(2'E,4'Z)-decadienoyl]-ingenol (1), 20-O-acetyl-[5-O-(2'E,4'Z)-decadienoyl]-ingenol (2) and 3-O-(2'E,4'Z)-decadienoylingenol (3), were isolated from Euphorbia kansui under the bioassay-guided method. Each compound showed the same antinematodal activity against the nematode, Bursaphelenchus xylophilus, at a minimum effective dose (MED) of 5 microg/cotton ball.
- Published
- 2007
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