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Zeng Q, Cheng Z, Li L, Yang Y, Peng Y, Zhou X, Zhang D, Hu X, Liu C, Chen X. Quantitative analysis of the quality constituents of Lonicera japonica Thunberg based on Raman spectroscopy. Food Chem 2024; 443:138513. [PMID: 38277933 DOI: 10.1016/j.foodchem.2024.138513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
Quantitative analysis of the quality constituents of Lonicera japonica (Jinyinhua [JYH]) using a feasible method provides important information on its evaluation and applications. Limitations of sample pretreatment, experimental site, and analysis time should be considered when identifying new methods. In response to these considerations, Raman spectroscopy combined with deep learning was used to establish a quantitative analysis model to determine the quality of JYH. Chlorogenic acid and total flavonoids were identified as analysis targets via network pharmacology. High performance liquid chromatograph and ultraviolet spectroscopy were used to construct standard curves for quantitative analysis. Raman spectra of JYH extracts (1200) were collected. Subsequently, models were built using partial least squares regression, Support Vector Machine, Back Propagation Neural Network, and One-dimensional Convolutional Neural Network (1D-CNN). Among these, the 1D-CNN model showed superior prediction capability and had higher accuracy (R2 = 0.971), and lower root mean square error, indicating its suitability for rapid quantitative analysis.
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Affiliation(s)
- Qi Zeng
- Center for Biomedical-photonics and Molecular Imaging, Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xidian University, Xi'an, Shaanxi 710126, China; Innovation Center for Advanced Medical Imaging and Intelligent Medicine, Guangzhou Institute of Technology, Xidian University, Guangzhou, Guangdong 510555, China
| | - Zhaoyang Cheng
- Center for Biomedical-photonics and Molecular Imaging, Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xidian University, Xi'an, Shaanxi 710126, China
| | - Li Li
- Center for Biomedical-photonics and Molecular Imaging, Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xidian University, Xi'an, Shaanxi 710126, China
| | - Yuhang Yang
- Center for Biomedical-photonics and Molecular Imaging, Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xidian University, Xi'an, Shaanxi 710126, China
| | - Yangyao Peng
- Center for Biomedical-photonics and Molecular Imaging, Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xidian University, Xi'an, Shaanxi 710126, China
| | - Xianzhen Zhou
- Center for Biomedical-photonics and Molecular Imaging, Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xidian University, Xi'an, Shaanxi 710126, China
| | - Dongjie Zhang
- Center for Biomedical-photonics and Molecular Imaging, Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xidian University, Xi'an, Shaanxi 710126, China; Innovation Center for Advanced Medical Imaging and Intelligent Medicine, Guangzhou Institute of Technology, Xidian University, Guangzhou, Guangdong 510555, China
| | - Xiaojia Hu
- Shanghai Nature's Sunshine Health Products Co. Ltd, Shanghai 200040, China
| | - Chunyu Liu
- Zests Biotechnology Co. Ltd, Suzhou City 215143, China
| | - Xueli Chen
- Center for Biomedical-photonics and Molecular Imaging, Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xidian University, Xi'an, Shaanxi 710126, China; Innovation Center for Advanced Medical Imaging and Intelligent Medicine, Guangzhou Institute of Technology, Xidian University, Guangzhou, Guangdong 510555, China.
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Zeng Q, Zhang M, Wang R. Causal link between gut microbiome and schizophrenia: a Mendelian randomization study. Psychiatr Genet 2024; 34:43-53. [PMID: 38441075 DOI: 10.1097/ypg.0000000000000361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
OBJECTIVE Some observational studies have shown that gut microbiome is significantly changed in patients with schizophrenia. We aim to identify the genetic causal link between gut microbiome and schizophrenia. METHODS A two-sample Mendelian randomization (MR) study was used to evaluate the causal link between gut microbiome and schizophrenia with 28 gut microbiome-associated genetic instrumental variants chosen from recent MR reports and the largest schizophrenia genome-wide association studies (8-Apr-22 release). RESULTS Inverse variance weighted method showed that genetically increased Bacteroidales_S24-7 (per SD) resulted in increased risk of schizophrenia (OR = 1.110, 95% CI: [1.012-1.217], P = 0.027). Similarly, genetically increased Prevotellaceae promoted schizophrenia risk (OR = 1.124, 95% CI: [1.030-1.228], P = 0.009). However, genetically increased Lachnospiraceae reduced schizophrenia risk (OR = 0.878, 95% CI: [0.785-0.983], P = 0.023). In addition, schizophrenia risk was also suppressed by genetically increased Lactobacillaceae (OR = 0.878, 95% CI: [0.776-0.994], P = 0.040) and Verrucomicrobiaceae (OR = 0.860, 95% CI: [0.749-0.987], P = 0.032). Finally, we did not find any significant results in the causal association of other 23 gut microbiome with schizophrenia. CONCLUSION Our analysis suggests that genetically increased Bacteroidales_S24-7 and Prevotellaceae promotes schizophrenia risk, whereas genetically increased Lachnospiraceae, Lactobacillaceae, and Verrucomicrobiaceae reduces schizophrenia risk. Thus, regulation of the disturbed intestinal microbiota may represent a new therapeutic strategy for patients with schizophrenia.
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Affiliation(s)
- Qi Zeng
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
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Ran LY, Liu XY, Wang W, Tao WQ, Xiang JJ, Zeng Q, Kong YT, Zhang CY, Liao J, Qiu HT, Kuang L. Personality traits predict treatment outcome of an antidepressant in untreated adolescents with depression: An 8-week, open-label, flexible-dose study. J Affect Disord 2024; 350:102-109. [PMID: 38199422 DOI: 10.1016/j.jad.2024.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 11/25/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
BACKGROUND Antidepressant response in adults with major depressive disorder (MDD) is probably influenced by personality dimensions. However, personality dimensions in depression and their association with antidepressant treatment in adolescents are relatively unknown. We sought to investigate whether personality traits (PTs) can influence antidepressant treatment response in adolescents with depression. METHODS Eighty-two adolescents with MDD who had completed the 8 weeks of treatment with selective serotonin reuptake inhibitors (SSRI) were enrolled. The Revised NEO Five-Factor Inventory (NEO-FFI-R) was used to measure their personality at baseline, and the 17-item Hamilton Depression Rating Scale (HAMD-17) and Children's Depression Rating Scale-Revised (CDRS-R) were used to evaluate depressive symptoms at baseline and 8 weeks. Moreover, logistic regression was performed to investigate the relationship between personality dimensions and antidepressant response. Receiver operating characteristic analyses were employed to determine the accuracy of a PT-based model in predicting the antidepressant response rate. RESULTS Adolescents with MDD had significantly different PTs at baseline. Multivariable logistic regression analysis showed that extroversion scores were associated with response to antidepressant treatment, the lower the extroversion score, the better the response to antidepressant treatment, after correcting for variables with significant differences and trends or all potential confounding variables. It was also found that the combination of disease duration, extraversion-gregariousness, and agreeableness-trust effectively predicted antidepressant response in adolescents with MDD, with a sensitivity of 79.4 % and specificity of 68.7 %. CONCLUSION Personality dysfunction in adolescents is associated with MDD. The antidepressant treatment response is influenced by the degree of extroversion in adolescents with MDD.
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Affiliation(s)
- Liu-Yi Ran
- Mental Health Center, University-Town Hospital of Chongqing Medical University, NO.55, University Town Middle Road, Shapingba District, Chongqing 401331, China; Chongqing Clinical Medical Research Center for Psychiatric and Psychological Disorders, China
| | - Xin-Yi Liu
- Mental Health Center, University-Town Hospital of Chongqing Medical University, NO.55, University Town Middle Road, Shapingba District, Chongqing 401331, China
| | - Wo Wang
- Mental Health Center, University-Town Hospital of Chongqing Medical University, NO.55, University Town Middle Road, Shapingba District, Chongqing 401331, China; Chongqing Clinical Medical Research Center for Psychiatric and Psychological Disorders, China
| | - Wan-Qing Tao
- Mental Health Center, University-Town Hospital of Chongqing Medical University, NO.55, University Town Middle Road, Shapingba District, Chongqing 401331, China
| | - Jiao-Jiao Xiang
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing 400016, China
| | - Qi Zeng
- Mental Health Center, University-Town Hospital of Chongqing Medical University, NO.55, University Town Middle Road, Shapingba District, Chongqing 401331, China
| | - Yi-Ting Kong
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing 400016, China
| | - Chen-Yu Zhang
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing 400016, China
| | - Jing Liao
- Mental Health Center, University-Town Hospital of Chongqing Medical University, NO.55, University Town Middle Road, Shapingba District, Chongqing 401331, China
| | - Hai-Tang Qiu
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing 400016, China; Chongqing Clinical Medical Research Center for Psychiatric and Psychological Disorders, China.
| | - Li Kuang
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing 400016, China; Chongqing Clinical Medical Research Center for Psychiatric and Psychological Disorders, China.
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Lin Z, Zeng Q, Yao W, Chen W, Cai C, Yang J, Lin X, Chen W. A fluorescence "turn-on" sensor for ascorbic acid in fruit juice and beverage based on ascorbate oxidase-like activity of citric acid-derived carbon dots. Food Chem 2024; 437:137928. [PMID: 37976784 DOI: 10.1016/j.foodchem.2023.137928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/27/2023] [Accepted: 11/01/2023] [Indexed: 11/19/2023]
Abstract
Citric acid-derived carbon dots (CA-CDs) without any modifications were found to have the ascorbate oxidase (AAO)-like activity. The CA-CDs have high affinity for ascorbic acid (AA), which is similar to natural AAO. The robustness of CA-CDs is greater than that of AAO. Based on the AAO mimetic activity of CA-CDs, a sensitive turn-on mode and natural enzyme-free fluorescence detection method has been developed for AA in some fruit juice and beverage samples with satisfied recoveries. This study provides CDs-based AAO mimetic nanozymes to replace the expensive natural enzymes or heavy metal-based nanozymes, which will show great potential in biological and food assays.
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Affiliation(s)
- Zhen Lin
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350122, China; Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350122, China.
| | - Qi Zeng
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350122, China; Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350122, China; Department of Pharmaceutical Analysis, Faculty of Pharmacy, Quanzhou Medical College, Quanzhou 362011, China
| | - Wensong Yao
- College of Medical Sciences, Ningde Normal University, Ningde 352100, China.
| | - Wei Chen
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350122, China; Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350122, China
| | - Chuangui Cai
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350122, China; Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350122, China
| | - Jialin Yang
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350122, China; Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350122, China
| | - Xinhua Lin
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350122, China; Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350122, China
| | - Wei Chen
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350122, China; Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350122, China.
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Shang B, Jia S, Zhang T, Gao F, Lu M, Chen K, Jiao J, Dai Z, Zeng Q, Xu B, Lei H. Study on the chemical constituents and mechanism of Kai-Xin-San based on UPLC-Q-Exactive MS and network pharmacology. J Ethnopharmacol 2024; 322:117652. [PMID: 38151178 DOI: 10.1016/j.jep.2023.117652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 12/29/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Vascular disease (VD) is a kind of common disease harmful to the health of the middle-aged and elderly, which has the characteristics of long treatment cycle and high recurrence rate, and without effective method to treat so far. Traditional Chinese medicine (TCM) has the characteristics of multi-components and multi-targets to treat diseases. Kai-Xin-San is a TCM formula applied for treating psychiatric diseases such as depression in China for thousands of years, and it has been used in clinical treatment of VD. But up to now, its active composition and mechanism are not clear. AIM OF THE STUDY To explore the effective components of Kai-Xin-San, investigate the effect of Kai-Xin-San on angiogenesis, screen and verify the related targets and possible mechanisms of Kai-Xin-San against VD. MATERIALS AND METHODS UPLC-Q-Exactive Orbitrap MS was performed to identify the chemical components of Kai-Xin-San. The mechanism of multi-components, multi-targets, and multi-pathways of Kai-Xin-San in the treatment of VD were explored by network pharmacology. And then, quail chick chorioallantoic membrane (qCAM) assays were used to evaluate the vascular protective activity of Kai-Xin-San. Evaluation of angiogenesis by calculating the relative vessels area. The levels of VEGFA and Akt1 in qCAM were measured by RT-PCR. Twenty-five male SD rats were randomly divided into the sham group, model group, Donepezil (0.45 mg/kg) group, Kai-Xin-San low dose group (0.1575 g/kg), Kai-Xin-San high dose group (0.63 g/kg). Two-vessel occlusion (2-VO) rat model is established to evaluate the therapeutic effect of Kai-Xin-San pretreatment. Hematoxylin-eosin (HE) staining is conducted to detect the morphological changes of neurons in the hippocampus. RESULTS Data showed that 62 compounds were identified in Kai-Xin-San. The network pharmacology results showed 73 compounds in Kai-Xin-San play a role in the treatment of VD, such as Ginsenoside Rh4, kaempferol, and Poricoic acid C. A total of 7 main targets are predicted, including Akt1, TNF and so on. Kai-Xin-San could increase VEGFA and Akt1 expression, promote angiogenesis and regulate the PI3K-Akt signaling pathway. The results depict that Kai-Xin-San has dose-dependently improved the cognitive function in 2-VO model rats. It has also been showed that Kai-Xin-San can rescue neuron damage in the hippocampus. CONCLUSION The complex chemical components of Kai-Xin-San play a synergistic role in the treatment of VD, and involve multiple pathways and targets. To protect blood vessels by promoting angiogenesis is one of the potential mechanisms of Kai-Xin-San in the treatment of VD. This study reveals that Kai-Xin-San protects the 2-VO model rats from ischemic injury by alleviating neuron damage in the hippocampus.
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Affiliation(s)
- Bingxian Shang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Shuhe Jia
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Tong Zhang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Feng Gao
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Mingjun Lu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Kedian Chen
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Jingyi Jiao
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Ziqi Dai
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Qi Zeng
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Bing Xu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China.
| | - Haimin Lei
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102400, China.
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Dong S, Zeng Q, He W, Cheng W, Zhang L, Zhong R, He W, Fang X, Wei H. Effect of Lactobacillus plantarum BFS1243 on a female frailty model induced by fecal microbiota transplantation in germ-free mice. Food Funct 2024. [PMID: 38516869 DOI: 10.1039/d3fo05282f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Frailty, a complex geriatric syndrome, significantly impedes the goal of achieving 'healthy aging'. Increasing evidence suggests a connection between gut microbiota, systemic inflammation, and disease. However, it remains to be determined whether interventions targeting the intestinal flora can effectively ameliorate frailty. Our research involved fecal microbiota transplantation (FMT) experiments on germ-free (GF) mice, dividing these mice into three groups: a group receiving transplants from healthy elderly individuals (HF group), a group of frailty patients (FF group), and the FF group supplemented with Lactobacillus plantarum BFS1243 (FFL group). Our findings indicated a significant shift in the gut microbiota of the FF group, in contrast to the HF group, characterized by decreased Akkermansia and increased Enterocloster, Parabacteroides, and Eisenbergiella. Concurrently, there was a reduction in amino acids and SCFAs, with BFS1243 partially mitigating these changes. The FF group exhibited an upregulation of inflammatory markers, including PGE2, CRP, and TNF-α, and a downregulation of irisin, all of which were moderated by BFS1243 treatment. Furthermore, BFS1243 improved intestinal barrier integrity and physical endurance in the FF mice. Correlation analysis revealed a negative association between SCFA-producing species and metabolites like lysine and butyric acid with pro-inflammatory factors. In conclusion, our study conclusively demonstrated that alterations in the gut microbiota of elderly individuals can lead to physical frailty, likely due to detrimental effects on the intestinal barrier and a pro-inflammatory state. These findings underscore the potential of gut microbiome modulation as a clinical strategy for treating frailty.
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Affiliation(s)
- Sashuang Dong
- Precision Medicine Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510030, P. R. China.
- College of Food Science, South China Agricultural University, Guangzhou, Guangdong, 510630, P. R. China.
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, 512000, P. R. China
| | - Qi Zeng
- Department of Geriatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510030, P. R. China.
| | - Weimin He
- Precision Medicine Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510030, P. R. China.
- College of Food Science, South China Agricultural University, Guangzhou, Guangdong, 510630, P. R. China.
| | - Wei Cheng
- Precision Medicine Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510030, P. R. China.
| | - Ling Zhang
- Department of Geriatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510030, P. R. China.
| | - Ruimin Zhong
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, 512000, P. R. China
| | - Wen He
- Department of Geriatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510030, P. R. China.
| | - Xiang Fang
- College of Food Science, South China Agricultural University, Guangzhou, Guangdong, 510630, P. R. China.
| | - Hong Wei
- Precision Medicine Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510030, P. R. China.
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Li J, Yu Z, Han M, Zeng Q, Zhang Y, Wei S, Wu L, Du J, Li J, Gao J, Li Y, Chen X. Biochemical component analysis of human myopic corneal stroma using the Raman spectrum. Int Ophthalmol 2024; 44:153. [PMID: 38509410 DOI: 10.1007/s10792-024-03034-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 01/12/2024] [Indexed: 03/22/2024]
Abstract
PURPOSE This study aimed to measure the Raman spectrum of the human corneal stroma lens obtained from small incision lenticule extraction surgery (SMILE) in Asian myopic eyes using a confocal Raman micro-spectrometer built in the laboratory. METHODS Forty-three myopic patients who underwent SMILE with equivalent diopters between - 4.00 and - 6.00 D were selected, and the right eye data were collected. Corneal stroma lenses were obtained during surgery, and the Raman spectra were measured after air drying. The complete Raman spectrum of human myopic corneal stroma lens tissue was obtained within the range of 700-4000 cm-1. RESULTS Thirteen characteristic peaks were found, with the stronger peaks appearing at 937 cm-1, corresponding to proline, valine, and the protein skeleton of the human myopic corneal stroma lens; 1243 cm-1, corresponding to collagen protein; 1448 cm-1, corresponding to the collagen protein and phospholipids; and 2940 cm-1, corresponding to the amino acid and lipids, which was the strongest Raman peak. CONCLUSION These results demonstrated that Raman spectroscopy has much potential as a fast, cost-effective, and reliable diagnostic tool in the diagnosis and treatment of eye diseases, including myopia, keratoconus, and corneal infection.
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Affiliation(s)
- Jing Li
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China
| | - Zhe Yu
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China
| | - Ming Han
- Xi'an Key Laboratory of Intelligent Sensing and Regulation of Trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, 710126, Shaanxi, China
- Engineering Research Center of Molecular & Neuro Imaging of the Ministry of Education, Xidian University, Xi'an, 710126, Shaanxi, China
| | - Qi Zeng
- Xi'an Key Laboratory of Intelligent Sensing and Regulation of Trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, 710126, Shaanxi, China
- Engineering Research Center of Molecular & Neuro Imaging of the Ministry of Education, Xidian University, Xi'an, 710126, Shaanxi, China
| | - Yaohua Zhang
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China
| | - Shengsheng Wei
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China
| | - Liping Wu
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China
| | - Jing Du
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China
| | - Juan Li
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China
| | - Jinrong Gao
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China
| | - Yong Li
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital, Affliated People's Hospital of Northwest University, No 4. Jiefang Road, Xin-Chen District, Xi'an, 710004, Shaanxi, China.
| | - Xueli Chen
- Xi'an Key Laboratory of Intelligent Sensing and Regulation of Trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, 710126, Shaanxi, China.
- Engineering Research Center of Molecular & Neuro Imaging of the Ministry of Education, Xidian University, Xi'an, 710126, Shaanxi, China.
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Zhang Z, Zeng Q, Wang N, Wang L, Wu Q, Li X, Tang J, Li R. Influence of nano-BN inclusion and mechanism involved on aluminium-copper alloy. Sci Rep 2024; 14:6372. [PMID: 38493194 PMCID: PMC10944483 DOI: 10.1038/s41598-024-56986-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024] Open
Abstract
Taking advantage of the high specific surface area of the nanoparticles, boron nitride (BN) nanoparticles were incorporated into the semi-solidified aluminium-copper alloy Al-5Cu-Mn (ZL201) system during the casting process, and its properties and enhancement mechanism were studied. The results shown that the BN in the new composite material is more uniformly distributed in the second phase (Al2Cu), which can promote grain refinement and enhance the bonding with the aluminium-based interface, and the formation of stable phases such as AlB2, AlN, CuN, etc. makes the tensile strength and hardness of the material to be significantly improved (8.5%, 10.2%, respectively). The mechanism of the action of BN in Al2Cu was analyzed by establishing an atomic model and after calculation: BN can undergo strong adsorption on the surface of Al2Cu (0 0 1), and the adsorption energy is lower at the bridge sites on the two cut-off surfaces, which makes the binding of BN to the aluminum base more stable. The charge transfer between B, N and each atom of the matrix can promote the formation of strong covalent bonds Al-N, Cu-N and Al-B bonds, which can increase the dislocation density and hinder the grain boundary slip within the alloy.
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Affiliation(s)
- Ziqi Zhang
- School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang, China
| | - Qi Zeng
- Guiyang Huaheng Mechanical Manufacture Co., Ltd, Guiyang, China
| | - Ning Wang
- School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang, China
| | - Lixia Wang
- School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang, China
| | - Quan Wu
- School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang, China
| | - Xin Li
- School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang, China
| | - Jiao Tang
- School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang, China
| | - Rong Li
- School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang, China.
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Shen Y, Fang L, Liu C, Wang J, Wu D, Zeng Q, Leng Y, Min W. Effect of bi-enzyme hydrolysis on the properties and composition of hydrolysates of Manchurian walnut dreg protein. Food Chem 2024; 447:138947. [PMID: 38492294 DOI: 10.1016/j.foodchem.2024.138947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 02/08/2024] [Accepted: 02/24/2024] [Indexed: 03/18/2024]
Abstract
Walnut dreg (WD) active peptides are an important source of dietary antioxidants; however, the products of conventional hydrolysis have limited industrial output owing to poor flavour and low bioactivity. To this end, in this study, we aimed to employ bvLAP, an aminopeptidase previously identified in our research, as well as commercially available Alcalase for bi-enzyme digestion. The flavour, antioxidant activity, and structures of products resulting from various digestion methods were compared. The results showed that the bi-enzyme digestion products had enhanced antioxidant activity, increased β-sheet content, and reduced bitterness intensity from 9.65 to 6.93. Moreover, bi-enzyme hydrolysates showed a more diverse amino acid composition containing 1640 peptides with distinct sequences. These results demonstrate that bi-enzyme hydrolysis could be a potential process for converting WD into functional food ingredients. Additionally, our results provide new concepts that can be applied in waste processing and high-value utilisation of WD.
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Affiliation(s)
- Yue Shen
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Li Fang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Chunlei Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Ji Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Dan Wu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Qi Zeng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Yue Leng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China.
| | - Weihong Min
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China.
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Xu Y, Gao R, Zhang M, Zeng Q, Zhou S, Zhu G, Su W, Wang R. Mendelian randomization study on causal association of FAM210B with drug-induced lupus. Clin Rheumatol 2024:10.1007/s10067-024-06903-w. [PMID: 38436771 DOI: 10.1007/s10067-024-06903-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 03/05/2024]
Abstract
OBJECTIVE Due to the complexity of drug-induced lupus (DIL) pathogenesis, more susceptibility factors need to be discovered. FAM210B is a new mitochondrial protein whose function has not been fully elucidated. This study will explore whether there is a correlation between FAM210B and the risk of DIL. METHODS At first, we extracted three FAM210B genetic variants from the GTEx database (n = 948), and extracted their corresponding genome-wide association study (GWAS) summary statistics from DIL (101 DIL cases and 218691 controls). Then, we performed a Mendelian randomization (MR) study to evaluate the causal association of the expression of FAM210B with DIL using inverse-variance weighted (IVW), the weighted median, MR-Egger, and MR-PRESSO test. RESULTS We successfully extracted three FAM210B single-nucleotide polymorphisms (SNPs) (rs116032784, rs34361943 and rs33923703) from the GTEx_Analysis_v8_eQTL data that can reduce FAM210B expression. The results of the MR analysis showed that genetically reduced expression of FAM210B was significantly associated with increased risk of DIL in European ancestry based on the IVW method (β = 1.037, p = 0.001, odds ratio [OR] = 2.821, 95% confidence interval [CI]:1.495-5.322). CONCLUSION MR analysis showed a causal relationship between FAM210B expression and the risk of DIL disease. Our results suggested that FAM210B may be a marker that can mark susceptibility of DIL in the future. It provides evidence for the study of DIL, but its specific mechanism of action in DIL needs to be further studied. Key Points •This is the first MR analysis to examine the association between FAM210B and DIL. •The findings of this study suggested that reduced FAM210B expression is associated with the increased risk of DIL. •FAM210B may be a marker that can mark susceptibility of DIL in the future.
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Affiliation(s)
- Yaqi Xu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China.
| | - Ran Gao
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Min Zhang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Qi Zeng
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Shan Zhou
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Gaizhi Zhu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Wenting Su
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
| | - Renxi Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, No.10 Xitoutiao, You An Men, Beijing, 100069, China
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Wu Y, Zeng Q, Peng Y, Chen C, Zhang N, Yu J. Reliability and validity of the Chinese revised version of the pectus excavatum evaluation questionnaire in children with pectus excavatum. BMC Pediatr 2024; 24:130. [PMID: 38374004 PMCID: PMC10875753 DOI: 10.1186/s12887-024-04598-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/28/2024] [Indexed: 02/21/2024] Open
Abstract
OBJECTIVE This study aims to translate the Pectus Excavatum Evaluation Questionnaire(PEEQ) into Chinese, and to comprehensively assess subjective outcomes in quality of life of children with pectus excavatum. METHODS The PEEQ was translated from English to Chinese as according to the PRO translation guidelines. Structural validity and reliability of the questionnaire were examined by validated factor analysis and Cronbach's alpha coefficient analysis respectively. RESULTS The results of the validation factor analysis for the Chinese PEEQ parent's and child's questionnaires demonstrated that the fit indicators for each dimension met the required criteria. The overall Cronbach's alpha coefficient of parent's and child's questionnaires were 0.840 and 0.854. Both the item-level content validity index (I-CVI) and scale-level content validity index (S-CVI) of each sub-questionnaire were 1. CONCLUSION The Chinese version of the PEEQ parent's questionnaire is suitable as a proxy assessment for patients with PE, but the child's questionnaire needs further adjustments.
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Affiliation(s)
- Yujia Wu
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56, Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Qi Zeng
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56, Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Yaguang Peng
- Center for Clinical Epidemiology and Evidence-based Medcine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56, Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Chenghao Chen
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56, Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Na Zhang
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56, Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China
| | - Jie Yu
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56, Nan Li Shi Road, Xi Cheng District, Beijing, 100045, China.
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12
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Qi C, Ma X, Zeng Q, Huang Z, Zhang S, Deng X, Kong T, Liu Z. Multicompartmental coacervate-based protocell by spontaneous droplet evaporation. Nat Commun 2024; 15:1107. [PMID: 38321061 PMCID: PMC10847435 DOI: 10.1038/s41467-024-45411-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 01/22/2024] [Indexed: 02/08/2024] Open
Abstract
Hierarchical compartmentalization, a hallmark of both primitive and modern cells, enables the concentration and isolation of biomolecules, and facilitates spatial organization of biochemical reactions. Coacervate-based compartments can sequester and recruit a large variety of molecules, making it an attractive protocell model. In this work, we report the spontaneous formation of core-shell cell-sized coacervate-based compartments driven by spontaneous evaporation of a sessile droplet on a thin-oil-coated substrate. Our analysis reveals that such far-from-equilibrium architectures arise from multiple, coupled segregative and associative liquid-liquid phase separation, and are stabilized by stagnation points within the evaporating droplet. The formation of stagnation points results from convective capillary flows induced by the maximum evaporation rate at the liquid-liquid-air contact line. This work provides valuable insights into the spontaneous formation and maintenance of hierarchical compartments under non-equilibrium conditions, offering a glimpse into the real-life scenario.
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Affiliation(s)
- Cheng Qi
- Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, 518060, Shenzhen, Guangdong, China
| | - Xudong Ma
- Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, 518060, Shenzhen, Guangdong, China
| | - Qi Zeng
- Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, 518060, Shenzhen, Guangdong, China
| | - Zhangwei Huang
- Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, 518060, Shenzhen, Guangdong, China
| | - Shanshan Zhang
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, 518000, Shenzhen, Guangdong, China
| | - Xiaokang Deng
- College of Chemistry and Environmental Engineering, Shenzhen University, 518000, Shenzhen, Guangdong, China
| | - Tiantian Kong
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, 518000, Shenzhen, Guangdong, China.
- Department of Urology, Inst Translat Med, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China.
| | - Zhou Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, 518000, Shenzhen, Guangdong, China.
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Zeng Q, Wei J, Dai CC, Yu BF. Nasofacial Groove Pedicled Flap for the Reconstruction of Lateral Alar Defect. J Craniofac Surg 2024:00001665-990000000-01307. [PMID: 38299810 DOI: 10.1097/scs.0000000000009986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 11/14/2023] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND The repair of nasal alar defects is challenging for plastic surgeons, and there is currently no standard operation. Herein, the authors reported the clinical outcomes of a nasofacial groove pedicled flap for the reconstruction of alar defect. METHODS This retrospective study included patients who underwent the nasofacial groove pedicled flap for the reconstruction of alar defect between January 2018 and June 2020. Photographs of standard facial postures were taken before and after surgery to record the surgical results of the patients. The patient's medical history was reviewed retrospectively. Self-reported satisfaction of patients on scar morphology and reconstructive effect were evaluated with a questionnaire survey. RESULTS There were 26 eligible patients enrolled, and all patients were followed up for more than 1 year after surgery. All flaps were free of ischemia and necrosis and healed well. No patient experienced restricted nostril ventilation. Eight patients underwent reoperation to trim the flap pedicle and the scar. Eight patients (8/26) reported "very satisfied," and 17 patients (17/26) reported "satisfied" with the repair effect and scar morphology. One patient went through multiple laser treatments to improve her scars but still remained visible hyperpigmentation. She was dissatisfied with postoperative flap pigmentation but was satisfied with the correction effect. CONCLUSIONS The clinical results indicated that the nasal groove flap was safe for the treatment of the lateral alar defect, and the patients were satisfied with the clinical results. The authors believe that this flap can be used as an alternative method for repairing the lateral alar defect. LEVEL OF EVIDENCE Level -IV, therapeutic study.
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Affiliation(s)
- Qi Zeng
- Department of Plastic Surgery, Jiangxi Province People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Jiao Wei
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Chuan-Chang Dai
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Bao-Fu Yu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
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Xie Y, Chen W, Li H, Zeng Q, Yu X, Feng M. Promoted micropollutant degradation and structural evolution of natural organic matter by a novel S(IV)-based water treatment strategy. J Hazard Mater 2024; 462:132801. [PMID: 37871437 DOI: 10.1016/j.jhazmat.2023.132801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/28/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023]
Abstract
The ubiquity of various organic micropollutants in global water and wastewater has raised considerable concern about their cost-efficient elimination. This study reported that the novel UV365/FeTiOX/S(IV) system could accomplish superior abatement of different micropollutants (e.g., carbamazepine, CMZ) in 30-45 min with excellent reusability and stability of FeTiOX. In addition, this system functioned effectively to remove roxarsone and As(III)/As(V) by catalytic oxidation and adsorption, respectively. Mechanistic investigations suggested the dual roles of S(IV) in enhancing pollutant oxidation, i.e., promoted Fe(II)/Fe(III) cycle and photocatalysis. These processes facilitated the continuous generation of multiple oxidizing intermediates (e.g., hydroxyl radicals, sulfate radicals, and singlet oxygen), in which the last one was first proposed as the main contributor in iron-mediated S(IV)-based oxidation processes. Based on the product identification, the transformation pathways of four different micropollutants were tentatively unraveled. The in silico prediction suggested the lower environmental risks of the final reaction products than the precursors. Particularly, the structural alteration of humic acid was analyzed, indicating an increased O/C ratio after oxidative treatment. Overall, this study has implications for developing an efficient oxidation technique for removing multiple micropollutants in water and facilitating the mechanistic reactivity modulation of the S(IV)-based oxidation strategies in water treatment.
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Affiliation(s)
- Yuwei Xie
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361100, China
| | - Wenzheng Chen
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361100, China
| | - Haoran Li
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361100, China
| | - Qi Zeng
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361100, China
| | - Xin Yu
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361100, China
| | - Mingbao Feng
- Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment & Ecology, Xiamen University, Xiamen 361100, China.
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15
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Yang Q, Cao H, Zeng Q, Fu B. Accumulative prediction values of serum thyroid stimulating hormone and visceral adipose tissue for metabolic syndrome in postmenopausal women: A 10-year follow-up study of Chinese population. J Diabetes 2024; 16:e13472. [PMID: 37749943 PMCID: PMC10809297 DOI: 10.1111/1753-0407.13472] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 08/10/2023] [Accepted: 08/20/2023] [Indexed: 09/27/2023] Open
Abstract
AIMS We aim to explore the cumulative predictive value of elevated serum thyroid stimulating hormone (TSH) and visceral fat area (VFA) for metabolic syndrome (MS) development in postmenopausal women. METHODS A total of 1006 postmenopausal females were enrolled in a 10-year prospective longitudinal study from 2011 to 2021 in the community of Banknote Printing Company of Chengdu. The sociodemographic information collection and anthropometric measurements were made by a professional nurse. Fasting blood samples were drawn for chemical analysis of fasting plasma glucose, triglycerides, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, and TSH. Magnetic resonance imaging was performed to measure VFA. All the participants were categorized into four groups according to median VFA and serum level of TSH. RESULTS A total of 793 postmenopausal females without MS underwent a 10-year follow-up study grouping by TSH and VFA: Group 1 (TSH level <4.2 μIU/mL, and VFA < 70 cm2 ), Group 2 (TSH level ≥4.2 μIU/mL, and VFA < 70 cm2 ), Group 3 (TSH level <4.2 μIU/mL, and VFA ≥70 cm2 ) and Group 4 (TSH level ≥4.2 μIU/mL, and VFA ≥70 cm2 ). During the 10-year follow-up, MS was newly developed in 326 (41.1%) subjects. The incidence of MS was 29.8% (n = 53), 35.2% (n = 63), 41% (n = 87), and 55% (n = 123) from Group 1 to Group 4 (Group 4 vs other groups, p < .001). Cox regression analysis for MS prediction demonstrated that both TSH (Model 3, hazard ratio [HR] = 1.07 [95% confidence interval, 1.05-1.09]) and VFA (Model 4, HR = 1.02 [95% confidence interval, 1.01-1.08]) were not only independent predictors of MS but also involved some interaction between each other (p for interaction = .021). CONCLUSION Our findings suggested that mutual interaction between higher TSH and VFA contributed to the development of MS. Further studies are needed to clarify these contributions.
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Affiliation(s)
- Qiu Yang
- Department of endocrinology, Geriatric Diseases Institute of Chengdu, Center for Medical Research and TranslationChengdu Fifth People's HospitalChengduChina
| | - Hongyi Cao
- Department of endocrinology, Geriatric Diseases Institute of Chengdu, Center for Medical Research and TranslationChengdu Fifth People's HospitalChengduChina
| | - Qi Zeng
- Information centerChengdu Fifth People's HospitalChengduChina
| | - Bing Fu
- Department of Radiology, Geriatric Diseases Institute of ChengduChengdu Fifth People's HospitalChengduChina
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Wang K, Xiao W, Zeng Q. Curcumin Inhibits Bladder Cancer by Inhibiting Invasion via AKT/MMP14 Pathway. Discov Med 2024; 36:71-81. [PMID: 38273747 DOI: 10.24976/discov.med.202436180.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
BACKGROUND Bladder cancer is a malignant tumor of the urinary and reproductive tract that seriously threatens human health. It is urgent to develop new drugs for bladder cancer. This study aims to explore whether curcumin could inhibit bladder cancer and the potential mechanism. METHODS Firstly, network pharmacology was applied to explore the potential target of curcumin in bladder cancer. Among the potential target of curcumin on bladder cancer, the role of matrix metalloproteinase-14 (MMP14) was further explored by bioinformatic analysis and the expression of MMP14 was confirmed by immunohistochemistry staining. The effect of curcumin on bladder cancer was then studied using the cell counting kit-8 (CCK-8) assay, clone formation assay, apoptosis assay, and Transwell assay. Finally, AKT, MMP14, E-cadherin and N-cadherin were analyzed by Western blot assay to confirm whether curcumin could inhibit bladder cancer by inhibiting invasion via AKT/MMP14 pathway. RESULTS In the present study, we found that the target of curcumin for bladder cancer includes signal transducer and activator of transcription 3 (STAT3), AKT, cyclin A2 (CCNA2), epidermal growth factor receptor (EGFR), E1A binding protein p300 (EP300) and MMP14. MMP14 was highly expressed in bladder cancer than in normal tissues and was associated with a worse prognosis (p < 0.05). Curcumin could inhibit the proliferation and migration of bladder cancer cells (p < 0.05), while promoting cell apoptosis by inhibiting the AKT/MMP14 pathway (p < 0.05). CONCLUSION Curcumin could inhibit bladder cancer by inhibiting invasion through the AKT/MMP14 pathway.
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Affiliation(s)
- Kai Wang
- Department of Pharmacy, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), 410006 Changsha, Hunan, China
| | - Wen Xiao
- Hunan Provincial Institute of Emergency Medicine, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), 410006 Changsha, Hunan, China
- College of Life Science, Hunan Normal University, 410081 Changsha, Hunan, China
| | - Qi Zeng
- Department of Ultrasonic Diagnosis, The First Affiliated Hospital of Gannan Medical University, 341001 Ganzhou, Jiangxi, China
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17
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Chen L, Zeng Q, Zhang J, Li C, Bai X, Sun F, Kliebenstein DJ, Li B. Large-scale identification of novel transcriptional regulators of the aliphatic glucosinolate pathway in Arabidopsis. J Exp Bot 2024; 75:300-315. [PMID: 37738614 DOI: 10.1093/jxb/erad376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/20/2023] [Indexed: 09/24/2023]
Abstract
Aliphatic glucosinolates are a large group of plant secondary metabolites characteristic of Brassicaceae, including the model plant Arabidopsis. The diverse and complex degradation products of aliphatic glucosinolates contribute to plant responses to herbivory, pathogen attack, and environmental stresses. Most of the biosynthesis genes in the aliphatic glucosinolate pathway have been cloned in Arabidopsis, and the research focus has recently shifted to the regulatory mechanisms controlling aliphatic glucosinolate accumulation. Up till now, more than 40 transcriptional regulators have been identified as regulating the aliphatic glucosinolate pathway, but many more novel regulators likely remain to be discovered based on research evidence over the past decade. In the current study, we took a systemic approach to functionally test 155 candidate transcription factors in Arabidopsis identified by yeast one-hybrid assay, and successfully validated at least 30 novel regulators that could significantly influence the accumulation of aliphatic glucosinolates in our experimental set-up. We also showed that the regulators of the aliphatic glucosinolate pathway have balanced positive and negative effects, and glucosinolate metabolism and plant development can be coordinated. Our work is the largest scale effort so far to validate transcriptional regulators of a plant secondary metabolism pathway, and provides new insights into how the highly diverse plant secondary metabolism is regulated at the transcriptional level.
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Affiliation(s)
- Lin Chen
- State Key Laboratory of Crop Stress Biology for Arid Area, College of Horticulture, Northwest A&F University, Yangling 712100, China
| | - Qi Zeng
- State Key Laboratory of Crop Stress Biology for Arid Area, College of Horticulture, Northwest A&F University, Yangling 712100, China
| | - Jiahao Zhang
- State Key Laboratory of Crop Stress Biology for Arid Area, College of Horticulture, Northwest A&F University, Yangling 712100, China
| | - Chao Li
- State Key Laboratory of Crop Stress Biology for Arid Area, College of Horticulture, Northwest A&F University, Yangling 712100, China
| | - Xue Bai
- State Key Laboratory of Crop Stress Biology for Arid Area, College of Horticulture, Northwest A&F University, Yangling 712100, China
| | - Fengli Sun
- College of Agronomy, Northwest A&F University, Yangling 712100, China
| | - Daniel J Kliebenstein
- Department of Plant Sciences, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Baohua Li
- State Key Laboratory of Crop Stress Biology for Arid Area, College of Horticulture, Northwest A&F University, Yangling 712100, China
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Wang Y, Bai Y, Zeng Q, Jiang Z, Liu Y, Wang X, Liu X, Liu C, Min W. Recent advances in the metabolic engineering and physiological opportunities for microbial synthesis of L-aspartic acid family amino acids: A review. Int J Biol Macromol 2023; 253:126916. [PMID: 37716660 DOI: 10.1016/j.ijbiomac.2023.126916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/10/2023] [Accepted: 09/13/2023] [Indexed: 09/18/2023]
Abstract
L-aspartic acid, L-threonine, L-isoleucine, l-lysine, and L-methionine constitute the l-aspartate amino acids (AFAAs). Except for L-aspartic acid, these are essential amino acids that cannot be synthesized by humans or animals themselves. E. coli and C. glutamicum are the main model organisms for AFAA production. It is necessary to reconstitute microbial cell factories and the physiological state of industrial fermentation cells for in-depth research into strains with higher AFAA production levels and optimal growth states. Considering that the anabolic pathways of the AFAAs and engineering modifications have rarely been reviewed in the latest progress, this work reviews the central metabolic pathways of two strains and strategies for the metabolic engineering of AFAA synthetic pathways. The challenges posed by microbial physiology in AFAA production and possible strategies to address them, as well as future research directions for constructing strains with high AFAA production levels, are discussed in this review article.
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Affiliation(s)
- Yusheng Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Yunlong Bai
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Qi Zeng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Zeyuan Jiang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Yuzhe Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Xiyan Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Xiaoting Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Chunlei Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China.
| | - Weihong Min
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China.
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Zhang M, Zeng Q, Zhou S, Zhu G, Xu Y, Gao R, Su W, Wang R. Mendelian randomization study on causal association of IL-6 signaling with pulmonary arterial hypertension. Clin Exp Hypertens 2023; 45:2183963. [PMID: 36871578 DOI: 10.1080/10641963.2023.2183963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
BACKGROUND A recent Mendelian randomization (MR) did not support an effect of the lead interleukin-6 receptor (IL-6 R) variant on risk of pulmonary arterial hypertension (PAH). Thus, we used two sets of genetic instrumental variants (IVs) and publicly available PAH genome-wide association studies (GWAS) to reassess the genetic causal link between IL-6 signaling and PAH. METHODS Six independent IL-6 signaling and 34 independent soluble IL-6 receptor (sIL-6 R) genetic IVs from recent MR reports and PAH GWAS including 162,962 European individuals were used to perform this two-sample MR study. RESULTS We found that as IL-6 signaling genetically increased, the risk of PAH reduced using IVW (odds ratio [OR] = 0.023, 95% confidence interval [CI]: 0.0013-0.393; p = .0093) and weighted median (OR = 0.033, 95% CI: 0.0024-0.467; p = .0116). Otherwise, as sIL-6 R genetically increased, the risk of PAH increased using IVW (OR = 1.34, 95% CI: 1.16-1.56; p = .0001), weighted median (OR = 1.36, 95% CI: 1.10-1.68; p = .005), MR-Egger (OR = 1.43, 95% CI: 1.05-1.94; p = .03), and weighted mode (OR = 1.35, 95% CI for OR: 1.12-1.63; p = .0035). CONCLUSION Our analysis suggested the causal link between genetically increased sIL-6 R and increased risk of PAH and between genetically increased IL-6 signaling and reduced risk of PAH. Thus, higher sIL-6 R levels may be a risk factor for patients with PAH, whereas higher IL-6 signaling may be a protective factor for patients with PAH.
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Affiliation(s)
- Min Zhang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, China
| | - Qi Zeng
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, China
| | - Shan Zhou
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, China
| | - Gaizhi Zhu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, China
| | - Yaqi Xu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, China
| | - Ran Gao
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, China
| | - Wenting Su
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, China
| | - Renxi Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, China
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Zou Z, Ren T, Li Y, Zeng Q, Wang X, Teng J, Xu J, Jia P, Ding X. The Association Between Serum Glutathione Peroxidase-3 Concentration and Risk of Acute Kidney Injury After Cardiac Surgery: A Nested Case-Control Study. Am J Cardiol 2023; 209:29-35. [PMID: 37839462 DOI: 10.1016/j.amjcard.2023.08.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/20/2023] [Accepted: 08/20/2023] [Indexed: 10/17/2023]
Abstract
Oxidative stress has an integral role in the pathophysiology of cardiac surgery-associated acute kidney injury (CSA-AKI). Glutathione peroxidase 3 (GPx3) is an important antioxidant enzyme in circulation and is mainly secreted by the kidney. This study aimed to evaluate the relation between GPx3 protein and CSA-AKI. This study is a nested case-control study in Zhongshan Hospital affiliated with Fudan University. We examined serum samples from 80 CSA-AKI patients and 80 age- and gender-matched non-AKI patients who underwent cardiac surgery. AKI was defined according to Kidney Disease: Improving Global Outcomes (KDIGO) 2012 criteria. We measured serum GPx3 concentration using the enzyme-linked immunosorbent assay. GPx3 ratio is the ratio of preoperative and 6 hours postoperative of GPx3 protein concentration. We applied dose-response relation analyses to odds ratio in different GPx3 ratio levels and integrated it into the logistic model to predict the risk of AKI. The receiver operating characteristic curve and area under the curve (AUC) was used to assess the prediction models. Postoperative serum GPx3 concentrations were significantly lower in the AKI group compared with the non-AKI group (1.78 ± 0.33 vs 2.03 ± 0.27, p <0.001). Malondialdehyde was higher in the AKI than in the non-AKI group (17.74 ± 8.65 vs 7.48 ± 4.59, p <0.001). The AKI risk increased in a dose-dependent manner, which was flat in the first half of the GPx3 ratio and then tended to be faster. The peaking odds ratio of CSA-AKI was 2.615 at the GPx3 ratio of 1.21 to 1.40. The AUC value to predict CSA-AKI only included the GPx3 ratio was 72.3%. After gradually integrating other covariates (body mass index, aortic crossclamp time, and cardiopulmonary bypass), the model showed an AUC of 82.6%. The serum GPx3 concentration was significantly lower in the CSA-AKI group. GPx3 ratio has a good predictive value for CSA-AKI, which may be a potential early diagnostic marker for AKI.
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Affiliation(s)
- Zhouping Zou
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Ting Ren
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Yang Li
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Qi Zeng
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Xiaoyan Wang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Jie Teng
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China; Department of Nephrology, Xiamen Branch, Zhongshan Hospital, Fudan University, Xiamen, China; Nephrology Clinical Quality Control Center of Xiamen, Xiamen, China
| | - Jiarui Xu
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.
| | - Ping Jia
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Medical Center of Kidney, Shanghai, China; Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China; Department of Nephrology, Xiamen Branch, Zhongshan Hospital, Fudan University, Xiamen, China; Nephrology Clinical Quality Control Center of Xiamen, Xiamen, China.
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Wang Z, Bao L, Wu L, Zeng Q, Feng Q, Zhou J, Luo Z, Wang Y. Causal effects of gut microbiota on appendicitis: a two-sample Mendelian randomization study. Front Cell Infect Microbiol 2023; 13:1320992. [PMID: 38162578 PMCID: PMC10757326 DOI: 10.3389/fcimb.2023.1320992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024] Open
Abstract
Background Previous research has posited a potential correlation between the gut microbiota and the onset of appendicitis; however, the precise causal connection between appendicitis and the gut microbiota remains an unresolved and contentious issue. Methods In this investigation, we performed a Mendelian randomization (MR) analysis employing publicly accessible summary data extracted from genome-wide association studies (GWAS) to elucidate the potential causal nexus between the gut microbiota and the development of appendicitis. We initially identified instrumental variables (IVs) through a comprehensive array of screening methodologies, subsequently executing MR analyses using the Inverse Variance Weighted (IVW) technique as our primary approach, supplemented by several alternative methods such as MR Egger, weighted median, simple mode, and weighted mode. Additionally, we implemented a series of sensitivity analysis procedures, encompassing Cochran's Q test, MR-Egger intercept test, Mendelian Randomized Polymorphism Residual and Outlier (MR-PRESSO) test, and a leave-one-out test, to affirm the robustness and validity of our findings. Results Our investigation indicates that an elevated prevalence of Deltaproteobacteria, Christensenellaceae, Desulfovibrionaceae, Eubacterium ruminantium group, Lachnospiraceae NK4A136 group, Methanobrevibacter, Desulfovibrionales, and Euryarchaeota is inversely associated with the risk of appendicitis. Conversely, we observed a positive correlation between an increased abundance of Family XIII, Howardella, and Veillonella and the susceptibility to appendicitis. Sensitivity analyses have corroborated the robustness of these findings, and Mendelian randomization analyses provided no indications of reverse causality. Conclusion Our Mendelian randomization (MR) analysis has unveiled potential advantageous or detrimental causal associations between the gut microbiota and the occurrence of appendicitis. This study offers novel theoretical and empirical insights into the understanding of appendicitis pathogenesis, along with its implications for preventive and therapeutic strategies.
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Affiliation(s)
- Zehui Wang
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Lijie Bao
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Lidong Wu
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Qi Zeng
- Queen Mary University of London, Nanchang University, Nanchang, Jiangxi, China
| | - Qian Feng
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Jinchuan Zhou
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Zhiqiang Luo
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Yibing Wang
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
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Tang L, Ding H, Zeng Q, Zhou R, Liu B, Huang X. Engineered Nanovesicles Expressing Bispecific Single Chain Variable Fragments to Protect against SARS-CoV-2 Infection. ACS Biomater Sci Eng 2023; 9:6783-6796. [PMID: 37969099 DOI: 10.1021/acsbiomaterials.3c01108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has resulted in high morbidity and mortality rates worldwide. Although the epidemic has been controlled in many areas and numerous patients have been successfully treated, the risk of reinfection persists due to the low neutralizing antibody titers and weak immune response. To provide long-term immune protection for infected patients, novel bispecific CB6/dendritic cell (DC)-specific intercellular adhesion molecule 3-grabbing nonintegrin (SIGN) nanovesicles (NVs) were constructed to target both the SARS-CoV-2 spike protein (S) and the DC receptors for virus neutralization and immune activation. Herein, we designed NVs expressing both CB6 and DC-SIGN single chain variable fragments (scFvs) on the surface to block SARS-CoV-2 invasion and activate DC function. Monophosphoryl lipid A (MPLA) was loaded into the CB6/DC-SIGN NVs as an adjuvant to promote this process. The CB6/DC-SIGN NVs prevented a pseudovirus expressing the S protein from infecting the target cells expressing high levels of angiotensin-converting enzyme 2 in vitro. Additionally, CB6/DC-SIGN NVs admixed with S-expressing pseudoviruses activated the DCs, which was promoted by the adjuvant MPLA loaded in the NVs. Using a mouse model, we also confirmed that the CB6/DC-SIGN NVs effectively improved the neutralizing antibody titer and inhibited the growth of tumors expressing the S protein after 3 weeks of treatment. This potential NV-based treatment not only exerts a blocking effect by binding the S protein in the short term but may also provide patients with long-term protection against secondary infections.
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Affiliation(s)
- Lantian Tang
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Hanxi Ding
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Qi Zeng
- Cancer Center, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Renjie Zhou
- Department of Emergency, Xinqiao Hospital, Army Medical University, 400037 Chongqing, China
| | - Bo Liu
- Department of Emergency, Xinqiao Hospital, Army Medical University, 400037 Chongqing, China
| | - Xi Huang
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China
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Zhang J, Hu Y, Wu L, Zeng Q, Hu B, Luo Z, Wang Y. Causal effect of gut microbiota on Gastroduodenal ulcer: a two-sample Mendelian randomization study. Front Cell Infect Microbiol 2023; 13:1322537. [PMID: 38156322 PMCID: PMC10753992 DOI: 10.3389/fcimb.2023.1322537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/20/2023] [Indexed: 12/30/2023] Open
Abstract
Background Gastroduodenal ulcers are associated with Helicobacter pylori infection and the use of nonsteroidal anti-inflammatory drugs (NSAIDs). However, the causal relationship between gastroduodenal ulcers and gut microbiota, especially specific gut microbiota, remains unclear. Methods We conducted an analysis of published data on the gut microbiota and Gastroduodenal ulcer using genome-wide association studies (GWAS). Two-sample Mendelian randomization (MR) analysis was performed to determine the causal relationship between gut microbiota and Gastroduodenal ulcer. Sensitivity, heterogeneity, and pleiotropy analyses were conducted to confirm the accuracy of the research findings. Results Our study showed that the abundance of Enterobacteriaceae, Butyricicoccus, Candidatus Soleaferrea, Lachnospiraceae NC2004 group, Peptococcus, and Enterobacteriales was negatively correlated with the risk of Gastroduodenal ulcer. Conversely, the abundance of Streptococcaceae, Lachnospiraceae UCG010, Marvinbryantia, Roseburia, Streptococcus, Mollicutes RF9, and NB1n was positively correlated with the risk of Gastroduodenal ulcer. MR analysis revealed causal relationships between 13 bacterial genera and Gastroduodenal ulcer. Conclusion This study represents a groundbreaking endeavor by furnishing preliminary evidence regarding the potentially advantageous or detrimental causal link between the gut microbiota and Gastroduodenal ulcer, employing Mendelian Randomization (MR) analysis for the first time. These discoveries have the potential to yield fresh perspectives on the prevention and therapeutic approaches concerning Gastroduodenal ulcer, with a specific focus on the modulation of the gut microbiota.
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Affiliation(s)
- Jing Zhang
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Jiangxi Province, China
| | - Yingqiu Hu
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Jiangxi Province, China
| | - Lidong Wu
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Jiangxi Province, China
| | - Qi Zeng
- Queen Mary University of London, Nanchang University, Jiangxi Province, China
| | - Bin Hu
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Jiangxi Province, China
| | - Zhiqiang Luo
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Jiangxi Province, China
| | - Yibing Wang
- Department of Emergency, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Jiangxi Province, China
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24
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Zhu L, Zeng Q, Wang J, Deng F, Jin S. Cathepsin V drives lung cancer progression by shaping the immunosuppressive environment and adhesion molecules cleavage. Aging (Albany NY) 2023; 15:13961-13979. [PMID: 38078882 PMCID: PMC10756122 DOI: 10.18632/aging.205278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/16/2023] [Indexed: 12/21/2023]
Abstract
Cathepsin V (CTSV) is a cysteine cathepsin protease that plays a crucial role in extracellular matrix degradation. CTSV is correlated with poor prognosis in various cancers, but the underlying mechanism remains elusive. Here, we observed that CSTV is upregulated in lung cancer and is a poor prognosis factor for lung cancer. CTSV acts as a driver in the metastasis of lung cancer both in vitro and in vivo. CTSV promotes lung cancer metastasis by downregulating adhesion molecules, including fibronectin, E-cadherin, and N-cadherin. Our data revealed that CTSV functions by mediating the fragmentation of fibronectin, E-cadherin, and N-cadherin in cleavage, remodeling the extracellular matrix (ECM). The rationally designed antibody targeting CTSV blocks its cleaving ability towards fibronectin, E-cadherin, and N-cadherin, suppressing migration and invasion. Furthermore, we found that CTSV expression is negatively correlated with immune cell infiltration and immune scores and inhibits T cell activity. Targeting CTSV with specific antibodies effectively suppressed lung cancer metastasis in a mouse model. Our study demonstrates the critical role of CTSV in the immunity and metastasis of lung cancer, suggesting that the CTSV-targeting approach is a promising strategy for lung cancer.
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Affiliation(s)
- Lifei Zhu
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Department of Dermatology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Qi Zeng
- Department of Oncology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Jinxiang Wang
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, Digestive Diseases Center, Precision Medicine Center, Sun Yat-Sen University, Shenzhen 518107, China
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518107, China
| | - Fan Deng
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Shi Jin
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, China
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Zeng Q. Reverse Homodigital Artery Island Flap With Palmar Cutaneous Branches of the Proper Digital Nerve for Repairing of Finger Pulp Defect and Sensory Reconstruction: Is It Deserving? Ann Plast Surg 2023; 91:789. [PMID: 38079322 DOI: 10.1097/sap.0000000000003686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Affiliation(s)
- Qi Zeng
- Department of Plastic Surgery, Jiangxi Province People's Hospital Affiliated to Nanchang Medical College, Nanchang, China.
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Zhang R, Yang W, Pan Q, Zeng Q, Yan C, Bai X, Liu Y, Zhang L, Li B. Effects of long-term blue light irradiation on carotenoid biosynthesis and antioxidant activities in Chinese cabbage (Brassica rapa L. ssp. pekinensis). Food Res Int 2023; 174:113661. [PMID: 37981380 DOI: 10.1016/j.foodres.2023.113661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 10/29/2023] [Accepted: 11/03/2023] [Indexed: 11/21/2023]
Abstract
The aim of this study was to investigate the impact of long-term exposure to blue light-emitting diodes (LEDs) on the accumulation of indolic glucosinolates and carotenoids, as well as the plant growth and antioxidant activities in both orange and common Chinese cabbage (Brassica rapa L. ssp. pekinensis). Blue light treatment also induced higher ferric-reducing antioxidant power and 2,2-diphenyl-1-picrylhydrazyl by 20.66 % and 30.82 % and antioxidant enzyme activities catalase, peroxidase, superoxide dismutase, and the accumulation of non-enzymatic antioxidant substances (total phenols and total flavonoids) in the orange Chinese cabbage. Furthermore, long-term exposure to blue light had negative effects on the net photosynthetic rate and chlorophyll fluorescence levels. Meanwhile, blue light promoted accumulation of Indol-3-ylmethyl glucosinolate (I3M), β-carotene, lutein and zeaxanthin due to the high expression of regulatory and biosynthetic genes of the above metabolic pathways. In particular, lycopene and β-carotene content in orange Chinese cabbage increased by 60.14 % and 65.33 % compared to the ones in common line. The accumulation of carotenoid and increasing antioxidant levels in the orange cabbage line was influenced by long-term blue light irradiation, leading to better tolerance to low temperature and drought stresses. The up-regulation of transcription factors such as BrHY5-2, BrPIF4 and BrMYB12 may also contribute to the increased tolerance in orange Chinese cabbage to extreme environmental stresses. The BrHY5-2 gene could activate carotenoid biosynthetic genes and induce the accumulation of carotenoids. These findings suggested that long-term blue light irradiation could be a promising technique for increasing the nutrition value and enhancing tolerance to low temperature and drought stresses in Chinese cabbage.
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Affiliation(s)
- Ruixing Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Wenjing Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Qiming Pan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Qi Zeng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Chengtai Yan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xue Bai
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Yao Liu
- Life Science Research Core Services, Northwest A & F University, Yangling 712100, Shaanxi, China.
| | - Lugang Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Baohua Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Zeng Q, Li G, Chen W. Ultrasound-activatable and skin-associated minimally invasive microdevices for smart drug delivery and diagnosis. Adv Drug Deliv Rev 2023; 203:115133. [PMID: 37925075 DOI: 10.1016/j.addr.2023.115133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/06/2023]
Abstract
Ultrasound-activatable and skin-associated minimally invasive microdevices (USMIMs) have garnered significant attention in the domains of smart drug delivery and biomedical diagnosis for on-demand healthcare, owing to their outstanding wearability, flexibility, and comfort. In this review, we present a comprehensive overview of the noteworthy advancements in USMIMs, with a specific focus on device design, potential applications, challenges, and future prospects. The classification of such microdevices primarily encompasses biointerfacing microsystems, including skin-perforable US-assisted microneedles (MNs), skin-attachable sonophoresis and their combination with microbubbles, as well as non-biointerfacing microsystems for drug delivery. Additionally, US-mediated and skin-attached microtransducers utilized in biomedical diagnosis are classified into imaging-related microtransducers, diagramming detection devices, and their combinative systems with applications on diverse signal detection. Besides, the review also highlights the challenges associated with USMIMs, focusing on aspects such as safety, environmental tolerance, wearability/comfortability, and personalization. Furthermore, it offers insights into future perspectives that address these challenges and discuss potential advancements in the field. It is firmly believed that the proposed USMIMs possess immense potential to significantly improve human lives in the near future.
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Affiliation(s)
- Qi Zeng
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Guanyue Li
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wei Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430022, China.
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Li P, Wang X, Zeng Q, Ren J, Qin RN, Zhang JY. [Interaction analysis of the influence of different factors and benzene exposure on workers' alanine aminotransferase]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:831-835. [PMID: 38073210 DOI: 10.3760/cma.j.cn121094-20220901-00436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Objective: To investigate the main factors that influence ALT abnormalities in workers exposed to benzene. Methods: In June 2022, data of 613 enterprises with benzene hazards and 585 enterprises with non-benzene hazards in Tianjin in 2021 were collected, and occupational health examination data of 13018 workers with benzene exposure and 13018 workers with non-benzene exposure were collected, and the region, enterprise type, industry classification and enterprise scale of the employer were analyzed. And occupational health examination data of workers with benzene exposure and non-benzene exposure. The effects of personal general situation, occupational history, enterprise information and benzene exposure on alanine aminotransferase were evaluated by additive interaction. Results: Compared with the group of non-benzene-exposed workers, the personal general conditions, occupational history, company information were higher in the benzene-exposed workers, and the differences were statistically significant (P<0.05). The quantitative analysis of additive interaction found that gender (RERI=2.632, 95%CI: 1.966-3.297; AP=0.383, 95%CI: 0.311-0.456; S=1.813, 95%CI: 1.530-2.149), age (RERI=1.142, 95%CI: 0.928-1.356; AP=0.462, 95% CI: 0.371-0.552; S=4.461, 95%CI: 1.800-11.053), length of service (RERI=-1.199, 95%CI: -1.653--0.745; AP=-0.456, 95%CI: -0.640--0.271; S=0.576, 95%CI: 0.479-0.693), region (RERI=0.421, 95% CI: 0.148-0.694; AP=0.161, 95%CI: 0.053-0.268; S=1.350, 95%CI: 1.057-1.726), industry classification (RERI=0.627, 95%CI: 0.345-0.910; AP=0.232, 95%CI: 0.132-0.332; S=1.584, 95%CI: 1.233-2.035) and benzene exposure had a statistically significant additive interaction with abnormal serum ALT. Conclusion: Emphasis should be placed on male workers under the age of 40 in the petrochemical industry, oil storage and transportation, and power production, so as to protect the health of workers more specifically and reduce the risk of disability due to disease.
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Affiliation(s)
- P Li
- Institute for Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - X Wang
- Institute for Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - Q Zeng
- Institute for Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - J Ren
- Institute for Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - R N Qin
- Institute for Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - J Y Zhang
- School of Public Health, Tianjin Medical University, Tianjin 300070, China
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Liu G, Zeng Q, Tian S, Sun X, Wang D, Wu Q, Wei W, Wu T, Zhang Y, Sheng Y, Tao K, Xie E, Zhang Z. Boosting Polysulfide Redox Kinetics by Temperature-Induced Metal-Insulator Transition Effect of Tungsten-Doped Vanadium Dioxide for High-Temperature Lithium-Sulfur Batteries. Small 2023:e2307040. [PMID: 37967337 DOI: 10.1002/smll.202307040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/19/2023] [Indexed: 11/17/2023]
Abstract
The practical application of Li-S batteries is still severely restricted by poor cyclic performance caused by the intrinsic polysulfides shuttle effect, which is even more severe under the high-temperature condition owing to the inevitable increase of polysulfides' solubility and diffusion rate. Herein, tungsten-doped vanadium dioxide (W-VO2 ) micro-flowers are employed with first-order metal-insulator phase transition (MIT) property as a robust and multifunctional modification layer to hamper the shuttle effect and simultaneously improve the thermotolerance of the common separator. Tungsten doping significantly reduces the transition temperature from 68 to 35 °C of vanadium dioxide, which renders the W-VO2 easier to turn from the insulating monoclinic phase into the metallic rutile phase. The systematic experiments and theoretical analysis demonstrate that the temperature-induced in-suit MIT property endows the W-VO2 catalyst with strong chemisorption against polysulfides, low energy barrier for liquid-to-solid conversion, and outstanding diffusion kinetics of Li-ion under high temperatures. Benefiting from these advantages, the Li-S batteries with W-VO2 modified separator exhibit significantly improved rate and long-term cyclic performance under 50 °C. Remarkably, even at an elevated temperature (80 °C), they still exhibit superior electrochemical performance. This work opens a rewarding avenue to use phase-changing materials for high-temperature Li-S batteries.
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Affiliation(s)
- Guo Liu
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Qi Zeng
- School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Shuhao Tian
- School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Xiao Sun
- School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Di Wang
- School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Qingfeng Wu
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Wei Wei
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Tianyu Wu
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Yuhao Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Yanbin Sheng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Kun Tao
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Erqing Xie
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Zhenxing Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
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Chen Y, Liu A, Zhang X, Ma X, Sun D, Tian X, Wu W, Zeng Q, Jiang Y, Zhang Y. Seizure course of PCDH19 clustering epilepsy in female children: A multicentre cohort study in China. Dev Med Child Neurol 2023. [PMID: 37960945 DOI: 10.1111/dmcn.15803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 10/09/2023] [Accepted: 10/17/2023] [Indexed: 11/15/2023]
Abstract
AIM To investigate the seizure course of PCDH19 clustering epilepsy (PCDH19-CE) in a cohort of female children in China. METHOD This ambidirectional cohort study examined 113 female patients with PCDH19-CE through multicentre collaboration. Prognostic factors for seizure freedom were evaluated by multivariate Cox regression analysis. RESULTS The median seizure course period from seizure onset was 6 years 6 months. Of 113 patients, 78% and 56% experienced seizure freedom for at least 1 year and at least 2 years respectively. In patients younger than 5 years (n = 30), 5 to 10 years (n = 52), and older than 10 years (n = 31), 57%, 81%, and 94% experienced at least 1 year of seizure freedom, and 32%, 52%, and 84% experienced at least 2 years of seizure freedom, respectively. However, 58% (65 out of 113) relapsed at least once after more than 1 year of seizure freedom without trigger exposure (40%) or because of common triggers, including fever (43%) and antiseizure medication (ASM) reduction (29%). There was an 84% risk of seizure relapse after ASM reduction attempts. The likelihood of seizure freedom decreased with early age at seizure onset and developmental delay. INTERPRETATION Patients with PCDH19-CE exhibit increasing seizure freedom with age, but there is a risk of relapse. ASM reduction in children younger than 10 years old requires caution. Patients with early seizure onset and developmental delay have a reduced chance of seizure freedom.
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Affiliation(s)
- Yi Chen
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Aijie Liu
- Department of Pediatric Neurology, Capital Institute of Pediatrics, Beijing, China
| | - Xiaoli Zhang
- Department of Pediatrics, The Third Affiliated Hospital of Zheng Zhou University, Zhengzhou, China
| | - Xiuwei Ma
- Department of Neurology, Bayi Children's Hospital, General Military Hospital of Beijing, Beijing, China
| | - Dan Sun
- Department of Neurology, Wuhan Children's Hospital, Wuhan, China
| | - Xiaojuan Tian
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Wenjuan Wu
- Department of Neurology, Children's Hospital of Hebei Province, Shijiazhuang, China
| | - Qi Zeng
- Department of Neurology, Shenzhen Children's Hospital, Shenzhen, China
| | - Yuwu Jiang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yuehua Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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Zeng Q, Liu J, Mu J, Yang J, Gao Q, Wu F, Zhou H. Optimal biopsy site for the diagnosis of oral pemphigus vulgaris and mucous membrane pemphigoid: a systematic review and meta-analysis. Int J Oral Maxillofac Surg 2023; 52:1162-1172. [PMID: 37268547 DOI: 10.1016/j.ijom.2023.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 05/07/2023] [Accepted: 05/11/2023] [Indexed: 06/04/2023]
Abstract
The aim of this study was to critically evaluate the diagnostic yields of direct immunofluorescence (DIF) analysis on perilesional and normal-appearing mucosa biopsy samples, to determine the optimal biopsy site for patients presenting with oral pemphigus vulgaris (PV) or mucous membrane pemphigoid (MMP). Electronic databases and article bibliographies were searched in December 2022. The primary outcome was the rate of DIF positivity. Of 374 records identified after the elimination of duplicates, 21 studies with 1027 samples were ultimately included. Meta-analysis revealed a pooled DIF positivity rate of 99.6% (95% confidence interval (CI) 97.4-100.0%, I2 = 0%) for PV and 92.6% (95% CI 87.9-96.5%, I2 = 44%) for MMP for biopsies from perilesional sites, and of 95.4% (95% CI 88.6-99.5%, I2 = 0%) for PV and 94.1% (95% CI 86.5-99.2%, I2 = 42%) for MMP for biopsies from normal-appearing sites. For MMP, there was no significant difference in the rate of DIF positivity between the two biopsy sites (odds ratio 1.91, 95% CI 0.91-4.01, I2 = 0%). The results suggest that the perilesional mucosa remains the optimal biopsy site for DIF diagnosis of oral PV, while the normal-appearing mucosa biopsy is optimal for oral MMP.
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Affiliation(s)
- Q Zeng
- State Key Laboratory of Oral Diseases, National Center of Stomatology, National Clinical Research Center for Oral Diseases, Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - J Liu
- State Key Laboratory of Oral Diseases, National Center of Stomatology, National Clinical Research Center for Oral Diseases, Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - J Mu
- State Key Laboratory of Oral Diseases, National Center of Stomatology, National Clinical Research Center for Oral Diseases, Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - J Yang
- State Key Laboratory of Oral Diseases, National Center of Stomatology, National Clinical Research Center for Oral Diseases, Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Q Gao
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - F Wu
- State Key Laboratory of Oral Diseases, National Center of Stomatology, National Clinical Research Center for Oral Diseases, Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| | - H Zhou
- State Key Laboratory of Oral Diseases, National Center of Stomatology, National Clinical Research Center for Oral Diseases, Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Zeng Q, Chen C, Zhang N, Yu J, Yan D, Xu C, Liu D, Zhang Q, Zhang X. Robot-assisted thoracoscopic surgery for mediastinal tumours in children: a single-centre retrospective study of 149 patients. Eur J Cardiothorac Surg 2023; 64:ezad362. [PMID: 37897669 DOI: 10.1093/ejcts/ezad362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/28/2023] [Accepted: 10/27/2023] [Indexed: 10/30/2023] Open
Abstract
OBJECTIVES The purpose of this retrospective study was to summarize our experience in performing robot-assisted thoracoscopic surgery (RATS) for mediastinal tumours in children to investigate its safety and feasibility. METHODS This retrospective study involved 149 patients with mediastinal tumours who were hospitalized in the Department of Thoracic Surgery of Beijing Children's Hospital, Capital Medical University, and underwent RATS for tumour resection from March 2021 to November 2022. Information on patient age, weight, tumour size, surgical incision selection, operative time, intraoperative bleeding, intraoperative complications, length of hospital stay, rate of conversion to thoracotomy and follow-up conditions were summarized. RESULTS All 149 surgeries were successfully completed with no cases of mortality. There were 77 male and 72 female patients, with a mean age of 5.9 years (range: 6 months-16 years, 8 months) and a mean weight of 23.6 kg (8.0-72.0 kg). The mean maximum tumour diameter was 5.5 cm (2.0-12.0 cm), the mean operative time was 106.7 min (25.0-260.0 min), the mean intraoperative bleeding volume was 11.3 ml (1.0-400.0 ml) and the mean hospital stay was 7.2 days (4.0-14.0 days). All patients recovered well with no cases of tumour recurrence or mortality during the postoperative follow-up period (3-23 months). CONCLUSIONS RATS is safe and feasible to apply in children with mediastinal tumours who are >6 months of age and weigh more than 8 kg in terms of short-term outcomes, but longer-term follow-up is needed to fully evaluate the benefits. For cases that are associated with greater surgical difficulty and risk, a comprehensive surgical plan should be fully prepared in advance of surgery.
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Affiliation(s)
- Qi Zeng
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
| | - Chenghao Chen
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
| | - Na Zhang
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
| | - Jie Yu
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
| | - Dong Yan
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
| | - Changqi Xu
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
| | - Dingyi Liu
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
| | - Qian Zhang
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
| | - Xu Zhang
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Department of Thoracic Surgery, National Clinical Research Center for Respiratory Disease, Ministry of Science and Technology, Beijing, China
- Department of Paediatric Surgery, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Department of Thoracic Surgery, Beijing Engineering Research Center of Paediatric Surgery, Beijing, China
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Li J, Zeng Q. Trim9 regulates the directional differentiation of retinal Müller cells to retinal ganglion cells. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2023; 48:1561-1571. [PMID: 38432885 PMCID: PMC10929896 DOI: 10.11817/j.issn.1672-7347.2023.230108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Indexed: 03/05/2024]
Abstract
OBJECTIVES Glaucoma is a leading cause of irreversible blindness, and effective therapies to reverse the visual system damage caused by glaucoma are still lacking. Recently, the stem cell therapy enable the repair and regeneration of the damaged retinal neurons, but challenges regarding the source of stem cells remain. This study aims to investigate a protocol that allows the dedifferentiation of Müller cells into retinal stem cells, following by directed differentiation into retinal ganglion cells with high efficiency, and to provide a new method of cellular acquisition for retinal stem cells. METHODS Epidermal cell growth factor and fibroblast growth factor 2 were used to induce the dedifferentiation of rat retinal Müller cells into retinal neural stem cells. Retinal stem cells derived from Müller cells were infected with a Trim9 overexpression lentiviral vector (PGC-FU-Trim9-GFP), and the efficiency of viral infection was assessed by fluorescence microscopy and flow cytometry. Retinoic acid and brain-derived neurotrophic factor treatments were used to induce the differentiation of the retinal stem cells into neurons and glial cells with or without the overexpression of Trim9. The expressions of each cellular marker (GLAST, GS, rhodopsin, PKC, HPC-1, Calbindin, Thy1.1, Brn-3b, Nestin, Pax6) were detected by immunofluorescence, PCR/real-time RT-PCR or Western blotting. RESULTS Rat retinal Müller cells expressed neural stem cells markers (Nestin and Pax6) with the treatment of epidermal cell growth factor and fibroblast growth factor 2. The Thy1.1 positive cell rate of retinal stem cells overexpressing Trim9 was significantly increased, indicating their directional differentiation into retinal ganglion cells after treatment with retinoic acid and brain-derived neurotrophic factor. CONCLUSIONS In this study, rat retinal Müller cells are dedifferentiated into retinal stem cells successfully, and Trim9 promotes the directional differentiation from retinal stem cells to retinal ganglion cells effectively.
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Affiliation(s)
- Jinxiang Li
- Department of Ophthalmology, First Hospital Affiliated with Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, China.
| | - Qi Zeng
- Department of Ophthalmology, First Hospital Affiliated with Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, China.
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Zeng Q, Wei WB, Liu J, Liu BF, Liu HL. [Construction of Tianjin occupational disease prevention and control ability assessment system based on Delphi method]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:871-875. [PMID: 37935558 DOI: 10.3760/cma.j.cn121094-20220606-00300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Objective: To establish a systematic, scientific, reasonable, feasible and reliable evaluation system for occupational disease prevention and control capability, in order to provide reference for occupational disease prevention and control work in Tianjin City. Methods: In August 2022, literature review was conducted to propose indicators for the evaluation system. Two rounds of anonymous consultation with occupational health experts were conducted using the Delphi method to form expert opinions. According to the boundary value method and expert opinions, eliminate, screen, and modify the evaluation system indicators to ultimately determine the system indicators. Use Cronbach's alpha to test the reliability of the system indicators and form a Tianjin occupational disease prevention and control capability evaluation system. Results: It showed that the effective response rates of the two rounds of consultation conducted by experts in this study were 92.3% and 100.0%, respectively. The expert authority coefficients were 0.84 and 0.82, respectively. The Kendall coordination coefficient was tested for differences, and the differences were statistically significant (P<0.05). The Tianjin occupational disease prevention and control capability evaluation system includes 7 primary indicators, 17 secondary indicators, and 54 tertiary indicators. The Cronbach's alpha of the primary, second, third level indicators and all indicators were 0.91, 0.98, 0.98, 0.98 (>0.7) . Conclusion: The preliminary evaluation system for occupational disease prevention and control capacity in Tianjin City has been established, providing a reference basis for the investigation of occupational disease prevention and control capacity in Tianjin City.
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Affiliation(s)
- Q Zeng
- Institute for Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - W B Wei
- School of Public Health, Tianjin Medical University, Tianjin 300070, China Medical Record Statistics Department of Shaoxing People's Hospital, Shaoxing 312000, China
| | - J Liu
- Institute for Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - B F Liu
- Institute for Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - H L Liu
- School of Public Health, Tianjin Medical University, Tianjin 300070, China Tianjin Municipal Health Commission Science and Education Office, Tianjin 300070, China
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Zeng Q, Liu S, Cui M. Structure-Activity Relationships of Cyano-substituted Indole Derivatives as Ligands for α-Synuclein Aggregates. ACS Med Chem Lett 2023; 14:1467-1471. [PMID: 37849556 PMCID: PMC10577886 DOI: 10.1021/acsmedchemlett.3c00384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 09/29/2023] [Indexed: 10/19/2023] Open
Abstract
α-Synuclein (α-syn) is an essential biomarker for synucleinopathies, including Parkinson's disease (PD), dementia with Lewy bodies (DLB), and multiple system atrophy (MSA). The development of α-syn imaging probes is of great importance for understanding the pathogenesis mechanism and developing new therapies. In this study, we designed and synthesized a series of cyano-substituted indole derivatives and evaluated their potency to bind to α-syn fibrils by in vitro fibril binding assays. We carried out systematic structure-activity relationship (SAR) studies and obtained a promising candidate 51. The results showed that 51 bound to α-syn fibrils with the affinity of 17.4 ± 5.6 nM, and the biodistribution experiments in normal mice showed [125I]51 exhibited a moderate brain uptake of 3.57 ± 0.28% ID/g at 2 min after injection. In conclusion, the indole derivative [125I]51 showed initial potential as α-syn imaging probes, which needed further development.
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Affiliation(s)
- Qi Zeng
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, China
| | - Sen Liu
- Beijing
Seven Dimension Neuroscience Research Center, Beijing Seven Dimension
Biotechnology Inc., Beijing 101500, China
| | - Mengchao Cui
- Key
Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing 100875, China
- Center
for Advanced Materials Research, Beijing
Normal University at Zhuhai, Zhuhai 519087, China
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Zeng Q, Tang Y, Jin J. Prognostic Role and Time Varying Failure Hazard of Neoadjuvant Rectal (NAR) Scores in the Stellar Randomized Phase 3 Trial. Int J Radiat Oncol Biol Phys 2023; 117:S105. [PMID: 37784277 DOI: 10.1016/j.ijrobp.2023.06.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) This study examined the prognostic role of the neoadjuvant rectal (NAR) score on disease-free survival (DFS) in the STELLAR phase III trial and assessed time-varying failure hazard. MATERIALS/METHODS The study included patients from the STELLAR trial who underwent total mesorecta excision and had calculable NAR scores. Chi-square tests were used to analyze the distribution of demographic information, treatment information, and NAR scores. Kaplan-Meier and Cox regression analyses assessed DFS, while smoothed hazard plots evaluated hazard variations. RESULTS Of 461 patients, 231 received total neoadjuvant therapy (TNT) and 229 received concurrent chemoradiotherapy (CRT). With a median follow-up of 37 months, 3-year DFS rates for low, intermediate, and high NAR scores were 86.2%, 72.671.8%, and 53.153.6%, respectively (P <0.001). In the TNT group, rates for the corresponding NAR score groups were 87.3%, 67.6%, and 52.4% while in the CRT group, rates were 84.7%, 76.0%, and 53.4% (both P <0.001). Multivariate analysis showed NAR scores as independent prognostic factors for DFS (intermediate vs. low, hazard ratio (HR) = 2.452.55, 95% confidence interval (CI): 1.347 - 4.4675, P <0.003; high vs. low, HR = 4.2668, 95% CI: 2.5133 - 8.727.79, P <0.001). The DFS hazardrisk rates for different NAR score groups initially increased and then decreased, peaking in the second year with rates of 5.04.6%, 11.62%, and 21.52% for low, intermediate, and high NAR scores, respectively. After the fourth year, the high NAR score still had a higher failure hazardrisk (12.5%), while the intermediate and low NAR score had a lower relapse hazardrisk (<3%). CONCLUSION The NAR score was a strong prognostic factor for DFS in the STELLAR trial, irrespective of TNT or CRT modalities. Hazard variations at different NAR score levels offer insights for personalized monitoring and warrant further investigation in clinical trials using NAR scores as endpoints. (NCT02533271).
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Affiliation(s)
- Q Zeng
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Jin
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Zhang K, Cui L, Zeng Q, Shi S, Long L, Tian X. Paenimyroides aestuarii gen. nov. sp. nov., a novel bacterium isolated from sediment in the Pearl River Estuary and reclassification of five Flavobacterium and four Myroides species. Int J Syst Evol Microbiol 2023; 73. [PMID: 37882776 DOI: 10.1099/ijsem.0.006091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023] Open
Abstract
An aerobic, Gram-negative, non-motile, yellow-to-orange pigmented and round bacterium, designated strain SCSIO 72103T, was isolated from sediment collected in the Pearl River Estuary, Guangdong Province, PR China and subjected to a polyphasic taxonomic study. Growth occurred at 20-37 °C (optimum, 28 °C), pH 6-8 (optimum, pH 7) and with 1-5.5% NaCl (optimum, 1-3 %). Comparative 16S rRNA gene analysis indicated that strain SCSIO 72103T had the highest similarities to Flavobacterium baculatum SNL9T (94.7 %) and Myroides aquimaris SW105T (94.2 %). Phylogenetic analysis based 16S rRNA gene sequences showed that strain SCSIO 72103T formed a single clade with M. aquimaris SW105T. Strain SCSIO 72103T contained iso-C15 : 0 as the major fatty acid and the predominant respiratory quinone was menaquinone MK-6. These characteristics are consistent with those of F. baculatum SNL9T and M. aquimaris SW105T. Phosphatidylethanolamine, most notably, unidentified aminolipid and unidentified aminophospholipid were major polar lipids. Strain SCSIO 72103T had a single circular chromosome of 2.96 Mb with a DNA G+C content of 35.1 mol%. The average nucleotide identity, average amino acid identity (AAI) and digital DNA-DNA hybridization values showed that the pairwise similarities between SCSIO 72103T and the type strains of F. baculatum SNL9T and M. aquimaris SW105T were 78.5-80.5 %, 79.0-81.4 % and 22.7-22.8 %, respectively. The AAI values between species in this clade and the type species of Flavobacterium and Myroides were below the 65 % threshold, indicating that these species belong to a novel genus. On the basis of phylogenetic, physiological and chemotaxonomic characteristics, strain SCSIO 72103T represents a new species of a novel genus, for which the name Paenimyroides aestuarii gen. nov. sp. nov. is proposed. The type strain is SCSIO 72103T (=KCTC 92043T=MCCC 1K06659T). It is also proposed that nine known species in the genera Flavobacterium and Myroides are reclassified as Paenimyroides species.
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Affiliation(s)
- Kun Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology; Guangdong Key Laboratory of Marine Materia Medica; RNAM Center for Marine Microbiology; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, PR China
- Sanya Institute of Ocean Eco-Environmental Engineering, Yazhou Scientific Bay, Sanya 572000, PR China
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Linqing Cui
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology; Guangdong Key Laboratory of Marine Materia Medica; RNAM Center for Marine Microbiology; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, PR China
- Sanya Institute of Ocean Eco-Environmental Engineering, Yazhou Scientific Bay, Sanya 572000, PR China
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Qi Zeng
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology; Guangdong Key Laboratory of Marine Materia Medica; RNAM Center for Marine Microbiology; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, PR China
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Songbiao Shi
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology; Guangdong Key Laboratory of Marine Materia Medica; RNAM Center for Marine Microbiology; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, PR China
- Sanya Institute of Ocean Eco-Environmental Engineering, Yazhou Scientific Bay, Sanya 572000, PR China
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lijuan Long
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology; Guangdong Key Laboratory of Marine Materia Medica; RNAM Center for Marine Microbiology; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, PR China
- Sanya Institute of Ocean Eco-Environmental Engineering, Yazhou Scientific Bay, Sanya 572000, PR China
| | - Xinpeng Tian
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology; Guangdong Key Laboratory of Marine Materia Medica; RNAM Center for Marine Microbiology; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, PR China
- Sanya Institute of Ocean Eco-Environmental Engineering, Yazhou Scientific Bay, Sanya 572000, PR China
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Chen R, Jin H, Pan J, Zeng Q, Lv X, Xia J, Ma J, Shi M, Jin Y. Underlying mechanisms of egg white thinning in hot spring eggs during storage: Weak gel properties and quantitative proteome analysis. Food Res Int 2023; 172:113157. [PMID: 37689846 DOI: 10.1016/j.foodres.2023.113157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 09/11/2023]
Abstract
As a weakly gelling protein, hot spring egg white underwent thinning during storage. This study explored the mechanism of thinning in hot spring egg white from the perspective of "gel structure and protein composition" using quantitative proteomics, SEM, SDS-PAGE, and other techniques. Quantitative proteomics analysis showed that there were 81 (44 up-regulated and 21 down-regulated) key proteins related to thinning of hot spring egg white. The changes in the relative abundance of proteins such as ovalbumin-related Y, mucin-6, lysozyme, ovomucoid, and ovotransferrin might be important reasons for thinning in hot spring egg white. SEM results indicated that the gel network gradually became regular and uniform, with large pores appearing on the cross-section and being pierced. Along with the decrease in intermolecular electrostatic repulsion, protein molecules gradually aggregated. The particle size gradually increased from 139.1 nm to 422.5 nm. Meanwhile, the surface hydrophobicity, and disulfide bond content gradually increased. These changes might be the reasons for thinning in hot spring egg white during storage. It can provide a new perspective for studying the thinning mechanism of weakly gelling egg whites.
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Affiliation(s)
- Rong Chen
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Haobo Jin
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiajing Pan
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qi Zeng
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaohui Lv
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiyu Xia
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiaxuan Ma
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Manqi Shi
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yongguo Jin
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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Zeng Q, Wang S, Chen L, Wang J. Transcriptome analysis reveals molecularly distinct subtypes in retinoblastoma. Sci Rep 2023; 13:16475. [PMID: 37777551 PMCID: PMC10542806 DOI: 10.1038/s41598-023-42253-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 09/07/2023] [Indexed: 10/02/2023] Open
Abstract
Retinoblastoma is the most frequent intraocular malignancy in children. Little is known on the molecular basis underlying the biological and clinical behavior of this cancer. Here, using gene expression profiles, we demonstrate the existence of two major retinoblastoma subtypes that can be divided into six subgroups. Subtype 1 has higher expression of cone related genes and higher percentage of RB1 germline mutation. By contrast, subtype 2 tumors harbor more genes with ganglion/neuronal features. The dedifferentiation in subtype 2 is associated with stemness features including low immune infiltration. Gene Otology analysis demonstrates that immune response regulations and visual related pathways are the key molecular difference between subtypes. Subtype 1b has the highest risk of invasiveness across all subtypes. The recognition of these molecular subtypes shed a light on the important biological and clinical perspectives for retinoblastomas.
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Affiliation(s)
- Qi Zeng
- Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha, 410005, China
| | - Sha Wang
- Eye Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, China.
- Hunan Key Laboratory of Ophthalmology, 87 Xiangya Road, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Lu Chen
- Eye Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, China
- Hunan Key Laboratory of Ophthalmology, 87 Xiangya Road, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jinwei Wang
- Eye Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, China
- Hunan Key Laboratory of Ophthalmology, 87 Xiangya Road, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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Tian S, Wang D, Liu Z, Liu G, Zeng Q, Sun X, Yang H, Han C, Tao K, Peng S. Highly Reversible Lithium-Ion Battery with Excellent Rate Performance and Cycle Stability Based on a Ti 3C 2/CoS 2 Composite Anode. ACS Appl Mater Interfaces 2023; 15:44996-45004. [PMID: 37700536 DOI: 10.1021/acsami.3c09605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Transition metal sulfide (TMS) CoS2 is considered an ideal anode material for new-generation lithium-ion batteries (LIBs) because of its high specific capacity, high electrochemical activity, and low cost. However, CoS2 is prone to volume expansion and structural collapse when it participates in the internal conversion reaction of the battery, which limits its practical application. After analyzing the failure mechanism of CoS2 as the anode material of LIBs, the concept of nanoengineered materials is introduced here. CoS2 particles are nanosized and stabilized by constructing a composite structure on an alkali-treated two-dimensional Ti3C2 Mxene conductive network. Both experiments and theoretical calculations show that special Ti-O-Co bonds are formed at the interface of the Ti3C2/CoS2 composite through oxygen-containing functional groups. Ti-O-Co bonding with adjustable electronic characteristics can effectively promote the utilization rate of anode materials, electronic conductivity, and ionic diffusivity and thus enhance the redox reaction kinetics of the device. When the Ti3C2/CoS2 composite is used as the anode material for LIBs, it still provides a high specific capacity of 405.8 mAh g-1 after 100 cycles at 0.1 A g-1. After running for 1000 cycles at a high current of 1 A g-1, the capacity retention is still close to 100%. Also, high cycle stability under the condition of highly active material loading (10.58 mg cm-2) and low electrolyte/active material ratio (10 μL mg-1) is achieved. This work provides a new idea for the development of commercial LIBs as anode materials.
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Affiliation(s)
- Shuhao Tian
- National & Locai Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Di Wang
- National & Locai Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhe Liu
- National & Locai Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Guo Liu
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Qi Zeng
- National & Locai Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiao Sun
- National & Locai Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hongcen Yang
- National & Locai Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Cong Han
- National & Locai Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Kun Tao
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shanglong Peng
- National & Locai Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, P. R. China
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Loh AHP, Thura M, Gupta A, Tan SH, Kuan KKY, Ang KH, Merchant K, Chang KTE, Yon HY, Chen Y, Cheng MHW, Mahadev A, Ng MCH, Seng MSF, Iyer P, Chia PL, Soh SY, Zeng Q. Exploiting frequent and specific expression of PRL3 in pediatric solid tumors for first-in-child use of PRL3-zumab humanized antibody. Mol Ther Oncolytics 2023; 30:153-166. [PMID: 37674627 PMCID: PMC10477756 DOI: 10.1016/j.omto.2023.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/15/2023] [Indexed: 09/08/2023] Open
Abstract
Phosphatase of regenerating liver 3 (PRL3) is a specific tumor antigen overexpressed in a broad range of adult cancer types. However, its physiological expression in pediatric embryonal and mesenchymal tumors and its association with clinical outcomes in children is unknown. We sought to profile the expression of PRL3 in pediatric tumors in relation to survival outcomes, expression of angiogenesis markers, and G-protein-coupled receptor (GPCR)-mitogen-activated protein kinase (MAPK) signaling targets. PRL3-zumab, a first-in-class humanized antibody, was administered in a dose escalation schedule in a first-in-child clinical trial to study toxicity, pharmacokinetics, and clinical outcomes. Among 64 pediatric tumors, PRL3 was most frequently expressed in neuroblastoma (100%), rhabdomyosarcoma and non-rhabdomyosarcoma soft tissue sarcomas (71%), and renal sarcomas (60%) but absent in paired normal tissues. PRL3 was expressed in 75% of relapsed tumors and associated with shorter median event-free survival. Microarray profiling of PRL3-positive tumors showed elevation of angiogenin, TIMP1 and TIMP2, and GPCR-MAPK signaling proteins that commonly interacted with PRL3. The first use of PRL3-zumab in a pediatric patient saw no adverse events. A 28.6% reduction in maximum target lesion diameter was achieved when PRL3-zumab was administered concurrently with hypofractionated radiation. These findings support wider exploration of PRL3 expression in embryonal and mesenchymal tumors and further clinical application of PRL3-zumab in pediatric patients.
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Affiliation(s)
- Amos Hong Pheng Loh
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children’s Blood and Cancer Centre, KK Women’s and Children’s Hospital Singapore 229899, Singapore
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of Paediatric Surgery, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Min Thura
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A∗STAR), Singapore 138673, Singapore
| | - Abhishek Gupta
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A∗STAR), Singapore 138673, Singapore
| | - Sheng Hui Tan
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children’s Blood and Cancer Centre, KK Women’s and Children’s Hospital Singapore 229899, Singapore
| | - Kelvin Kam Yew Kuan
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A∗STAR), Singapore 138673, Singapore
| | - Koon Hwee Ang
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A∗STAR), Singapore 138673, Singapore
| | - Khurshid Merchant
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children’s Blood and Cancer Centre, KK Women’s and Children’s Hospital Singapore 229899, Singapore
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of Pathology and Laboratory Medicine, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Kenneth Tou En Chang
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children’s Blood and Cancer Centre, KK Women’s and Children’s Hospital Singapore 229899, Singapore
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of Pathology and Laboratory Medicine, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Hui Yi Yon
- Department of Pathology and Laboratory Medicine, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Yong Chen
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of Paediatric Surgery, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Mathew Hern Wang Cheng
- Department of Orthopaedic Surgery, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Arjandas Mahadev
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of Orthopaedic Surgery, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Matthew Chau Hsien Ng
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of GI Oncology, National Cancer Centre Singapore, Singapore 229899, Singapore
| | - Michaela Su-Fern Seng
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children’s Blood and Cancer Centre, KK Women’s and Children’s Hospital Singapore 229899, Singapore
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of Paediatric Subspecialties Haematology/Oncology Service, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Prasad Iyer
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children’s Blood and Cancer Centre, KK Women’s and Children’s Hospital Singapore 229899, Singapore
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of Paediatric Subspecialties Haematology/Oncology Service, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Pei Ling Chia
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A∗STAR), Singapore 138673, Singapore
| | - Shui Yen Soh
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children’s Blood and Cancer Centre, KK Women’s and Children’s Hospital Singapore 229899, Singapore
- Duke-NUS School of Medicine, Singapore 169857, Singapore
- Department of Paediatric Subspecialties Haematology/Oncology Service, KK Women’s and Children’s Hospital, Singapore 229899, Singapore
| | - Qi Zeng
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research (A∗STAR), Singapore 138673, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119260, Singapore
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Zhao XJ, Ju YY, Su YM, Tang C, Zeng Q, Feng L, Wang C, Müllen K, Tan YZ. Hexa-Branched Nanographenes with Large Two-Photon Absorption. J Am Chem Soc 2023; 145:19333-19337. [PMID: 37638550 DOI: 10.1021/jacs.3c05662] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
The conventional approach toward molecules with large two-photon absorption (TPA) involves donor-acceptor conjugation. Herein we show a new strategy involving the use of hexa-branched nanographenes. We synthesized two hexa-branched nanographenes, one with six benzoaceanthrylene arms fused to the coronene core and the other with six pyrenyl arms fused to the coronene core. Neither of these hexa-branched nanographenes has a donor-acceptor structure, yet they exhibited high TPA values of 3.6 × 103 and 1.9 × 104 GM, respectively, which are the highest values recorded for heteroatom-free hydrocarbon molecules. Theoretical analysis suggests that the fused branched structures are responsible for the large TPA cross-section. These findings illustrate the importance of the topology of the fused conjugated skeleton in TPA and provide an alternative structural design toward large TPA.
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Affiliation(s)
- Xin-Jing Zhao
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yang-Yang Ju
- Shenzhen Key Laboratory of Nanozymes and Translational Cancer Research, Department of Otolaryngology, Shenzhen Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035,China
| | - Yu-Ming Su
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chun Tang
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qi Zeng
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - LiuBin Feng
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Cheng Wang
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Institute of Physical Chemistry, Johannes Gutenberg-Universitat Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Yuan-Zhi Tan
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Zeng Q, Zhou J, Hua X. TRIM9 promotes Müller cell-derived retinal stem cells to differentiate into retinal ganglion cells by regulating Atoh7. In Vitro Cell Dev Biol Anim 2023; 59:586-595. [PMID: 37792226 DOI: 10.1007/s11626-023-00807-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/21/2023] [Indexed: 10/05/2023]
Abstract
Glaucoma is a multifactorial, irreversible blinding eye disease characterized by a large number of retinal ganglion cell (RGC) deaths. Müller cell-derived retinal stem cells (RSCs) can be induced to differentiate into RGCs under certain conditions. This study aimed to explore the regulatory effect and mechanism of TRIM9 on the differentiation of Müller cell-derived stem cells into RGCs. First, episcleral vein cauterization was used to induce high intraocular pressure (IOP) rat model. Next, Müller cells were isolated from rat retina, identified and induced to dedifferentiate into RSCs. Finally, RSCs were intervened with lentivirus PGC-FU-TRIM9-GFP transfection or siRNA Atoh7 and induced to redifferentiate into RGCs. In vivo, TRIM9 was highly expressed and Müller cells proliferated abnormally in the high IOP rat model. In vitro, S-100, GFAP, vimentin, and GS were positively expressed in Müller cells isolated from rat retina, and the purity of cells was 97.17%. Under the stimulation of cytokines, the proliferative capacity of the cells and the expression of Nestin and Ki67 gradually increased with the prolongation of culture time. Furthermore, RSCs transfected with the lentiviral vector PGC-FU-TRIM9-GFP displayed a striking morphological feature of long neurites. Additionally, there was a remarkable increase in the fluorescence intensity of Brn-3b and Thy1.1, accompanied by elevated mRNA and protein expression levels of Brn-3b, Thy1.1, and Atoh7. After knocking down Atoh7, the effect of TRIM9 on the above indicators was reversed. TRIM9 might promote the differentiation of Müller cells into RGCs by regulating the expression of Atoh7.
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Affiliation(s)
- Qi Zeng
- Department of Ophthalmology, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), No. 61, Jiefang West Road, Furong District, Changsha, 410008, China.
| | - Jinglin Zhou
- Department of Ophthalmology, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), No. 61, Jiefang West Road, Furong District, Changsha, 410008, China
| | - Xingyu Hua
- Department of Ophthalmology, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), No. 61, Jiefang West Road, Furong District, Changsha, 410008, China
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Zeng Q, Gao X, Wang L, Fang G, Qian J, Liu H, Li Z, Li W. Impact of Raman mapping area and intra-tablet homogeneity on the accuracy of sustained-release tablet dissolution prediction. Eur J Pharm Biopharm 2023; 190:161-170. [PMID: 37488047 DOI: 10.1016/j.ejpb.2023.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 07/26/2023]
Abstract
This exploratory study investigated the minimum required Raman mapping area for predicting sustained-release tablet dissolution profiles based on intra-tablet homogeneity. The aim was to minimize scanning time while achieving reliable dissolution profile predictions. To construct the sample set, we controlled the blending time to introduce variability in the homogeneity of the tablets. The dissolution prediction models were established using the partial least squares regression under different Raman mapping area. The accuracies of the prediction results were evaluated according to the difference factor f1 and Intersection-Union two one-sided t-tests (IU TOST) methods, and the implications conveyed by the results were discussed. The results showed that the homogeneity of sustained-release tablet affects the minimum required mapping area, and the tablets with higher homogeneity show higher prediction accuracy when using the same mapping area to model the dissolution profiles of tablets.
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Affiliation(s)
- Qi Zeng
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Xin Gao
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Long Wang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Guangpu Fang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Jiahe Qian
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Hai Liu
- Sichuan Haitai Pharmaceutical Equipment Technology Co., Ltd, Guangan, PR China
| | - Zheng Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, PR China
| | - Wenlong Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, PR China.
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Liu G, Zeng Q, Sui X, Tian S, Sun X, Wu Q, Li X, Zhang Y, Tao K, Xie E, Zhang Z. Modulating d-Band Electronic Structures of Molybdenum Disulfide via p/n Doping to Boost Polysulfide Conversion in Lithium-Sulfur Batteries. Small 2023; 19:e2301085. [PMID: 37194979 DOI: 10.1002/smll.202301085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/26/2023] [Indexed: 05/18/2023]
Abstract
Polysulfide shuttle effect and sluggish sulfur reaction kinetics severely impede the cycling stability and sulfur utilization of lithium-sulfur (Li-S) batteries. Modulating d-band electronic structures of molybdenum disulfide electrocatalysts via p/n doping is promising to boost polysulfide conversion and suppress polysulfide migration in lithium-sulfur batteries. Herein, p-type V-doped MoS2 (V-MoS2 ) and n-type Mn-doped MoS2 (Mn-MoS2 ) catalysts are well-designed. Experimental results and theoretical analyses reveal that both of them significantly increase the binding energy of polysulfides on the catalysts' surface and accelerate the sluggish conversion kinetics of sulfur species. Particularly, the p-type V-MoS2 catalyst exhibits a more obvious bidirectional catalytic effect. Electronic structure analysis further demonstrates that the superior anchoring and electrocatalytic activities are originated from the upward shift of the d-band center and the optimized electronic structure induced by duplex metal coupling. As a result, the Li-S batteries with V-MoS2 modified separator exhibit a high initial capacity of 1607.2 mAh g-1 at 0.2 C and excellent rate and cycling performance. Moreover, even at a high sulfur loading of 6.84 mg cm-2 , a favorable initial areal capacity of 8.98 mAh cm-2 is achieved at 0.1 C. This work may bring widespread attention to atomic engineering in catalyst design for high-performance Li-S batteries.
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Affiliation(s)
- Guo Liu
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Qi Zeng
- School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Xinyi Sui
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Shuhao Tian
- School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Xiao Sun
- School of Materials and Energy, Lanzhou University, Lanzhou, 730000, China
| | - Qingfeng Wu
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Xijuan Li
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Yuhao Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Kun Tao
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Erqing Xie
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Zhenxing Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
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Hashemi HS, Mohammed SK, Zeng Q, Azar RZ, Rohling RN, Salcudean SE. 3-D Ultrafast Shear Wave Absolute Vibro-Elastography Using a Matrix Array Transducer. IEEE Trans Ultrason Ferroelectr Freq Control 2023; 70:1039-1053. [PMID: 37235463 DOI: 10.1109/tuffc.2023.3280450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Real-time ultrasound imaging plays an important role in ultrasound-guided interventions. The 3-D imaging provides more spatial information compared to conventional 2-D frames by considering the volumes of data. One of the main bottlenecks of 3-D imaging is the long data acquisition time, which reduces practicality and can introduce artifacts from unwanted patient or sonographer motion. This article introduces the first shear wave absolute vibro-elastography (S-WAVE) method with real-time volumetric acquisition using a matrix array transducer. In S-WAVE, an external vibration source generates mechanical vibrations inside the tissue. The tissue motion is then estimated and used in solving a wave equation inverse problem to provide the tissue elasticity. A matrix array transducer is used with a Verasonics ultrasound machine and a frame rate of 2000 volumes/s to acquire 100 radio frequency (RF) volumes in 0.05 s. Using plane wave (PW) and compounded diverging wave (CDW) imaging methods, we estimate axial, lateral, and elevational displacements over 3-D volumes. The curl of the displacements is used with local frequency estimation to estimate elasticity in the acquired volumes. Ultrafast acquisition extends substantially the possible S-WAVE excitation frequency range, now up to 800 Hz, enabling new tissue modeling and characterization. The method was validated on three homogeneous liver fibrosis phantoms and on four different inclusions within a heterogeneous phantom. The homogeneous phantom results show less than 8% (PW) and 5% (CDW) difference between the manufacturer values and the corresponding estimated values over a frequency range of 80-800 Hz. The estimated elasticity values for the heterogeneous phantom at 400-Hz excitation frequency show the average errors of 9% (PW) and 6% (CDW) compared to the provided average values by magnetic resonance elastography (MRE). Furthermore, both imaging methods were able to detect the inclusions within the elasticity volumes. An ex vivo study on a bovine liver sample shows less than 11% (PW) and 9% (CDW) difference between the estimated elasticity ranges by the proposed method and the elasticity ranges provided by MRE and acoustic radiation force impulse (ARFI).
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Aleef TA, Zeng Q, Moradi H, Mohammed S, Curran T, Honarvar M, Rohling R, Mahdavi SS, Salcudean SE. 3-D Transducer Mounted Shear Wave Absolute Vibro-Elastography: Proof of Concept. IEEE Trans Ultrason Ferroelectr Freq Control 2023; 70:1026-1038. [PMID: 37027576 DOI: 10.1109/tuffc.2023.3249795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Quantitative tissue stiffness characterization using ultrasound (US) has been shown to improve prostate cancer (PCa) detection in multiple studies. Shear wave absolute vibro-elastography (SWAVE) allows quantitative and volumetric assessment of tissue stiffness using external multifrequency excitation. This article presents a proof of concept of a first-of-a-kind 3-D hand-operated endorectal SWAVE system designed to be used during systematic prostate biopsy. The system is developed with a clinical US machine, requiring only an external exciter that can be mounted directly to the transducer. Subsector acquisition of radio frequency (RF) data allows imaging of shear waves with a high effective frame rate (up to 250 Hz). The system was characterized using eight different quality assurance phantoms. Due to the invasive nature of prostate imaging, at this early stage of development, validation of in vivo human tissue was instead carried out by intercostally scanning the livers of n = 7 healthy volunteers. The results are compared with 3-D magnetic resonance elastography (MRE) and an existing 3-D SWAVE system with a matrix array transducer (M-SWAVE). High correlations were found with MRE (99% in phantoms, 94% in liver data) and with M-SWAVE (99% in phantoms, 98% in liver data).
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Liu G, Zeng Q, Wu Q, Tian S, Sun X, Wang D, Li X, Wei W, Wu T, Zhang Y, Sheng Y, Tao K, Xie E, Zhang Z. Manipulating Sulfur Conversion Kinetics through Interfacial Built-In Electric Field Enhanced Bidirectional Mott-Schottky Electrocatalysts in Lithium-Sulfur Batteries. ACS Appl Mater Interfaces 2023; 15:39384-39395. [PMID: 37555537 DOI: 10.1021/acsami.3c08088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Efficient electrocatalysts and catalytic mechanisms remain a pressing need in Li-S electrochemistry to address lithium polysulfide (LiPS) shuttling and enhance conversion kinetics. This study presents the development of multifunctional VO2@rGO heterostructures, incorporating interfacial built-in electric field (BIEF) enhancement, as a Mott-Schottky electrocatalyst for Li-S batteries. Electrochemical experiments and theoretical analysis demonstrate that the interfacial BIEF between VO2 and rGO induces self-driven charge redistribution, resulting in accelerated charge transport rates, enhanced LiPS chemisorption, reduced energy barriers for Li2S nucleation/decomposition, and improved Li-ion diffusion behavior. The Mott-Schottky electrocatalyst, combining the strengths of VO2's anchoring ability, rGO's metallic conductivity, and BIEF's optimized charge transport, exhibits an outstanding "trapping-conversion" effect. The modified Li-S battery with a VO2@rGO-modified separator achieves a highly reversible capacity of 558.0 mAh g-1 at 2 C over 600 cycles, with an average decay rate of 0.048% per cycle. This research offers valuable insights into the design of Mott-Schottky electrocatalysts and their catalytic mechanisms, advancing high-efficiency Li-S batteries and other multielectron energy storage and conversion devices.
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Affiliation(s)
- Guo Liu
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Qi Zeng
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Qingfeng Wu
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Shuhao Tian
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Xiao Sun
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Di Wang
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Xijuan Li
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Wei Wei
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Tianyu Wu
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Yuhao Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Yanbin Sheng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Kun Tao
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Erqing Xie
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Zhenxing Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
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Chen J, Zhu T, Jiang G, Zeng Q, Li Z, Huang X. Target delivery of a PD-1-TREM2 scFv by CAR-T cells enhances anti-tumor efficacy in colorectal cancer. Mol Cancer 2023; 22:131. [PMID: 37563723 PMCID: PMC10413520 DOI: 10.1186/s12943-023-01830-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 07/20/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Chimeric antigen receptor (CAR) -T cell therapy is an efficient therapeutic strategy for specific hematologic malignancies. However, positive outcomes of this novel therapy in treating solid tumors are curtailed by the immunosuppressive tumor microenvironment (TME), wherein signaling of the checkpoint programmed death-1 (PD-1)/PD-L1 directly inhibits T-cell responses. Although checkpoint-targeted immunotherapy succeeds in increasing the number of T cells produced to control tumor growth, the desired effect is mitigated by the action of myeloid-derived suppressor cells (MDSCs) and tumor-associated macrophages (TAMs) in the TME. Previous studies have confirmed that targeting triggering-receptor-expressed on myeloid cells 2 (TREM2) on TAMs and MDSCs enhances the outcomes of anti-PD-1 immunotherapy. METHODS We constructed carcinoembryonic antigen (CEA)-specific CAR-T cells for colorectal cancer (CRC)-specific antigens with an autocrine PD-1-TREM2 single-chain variable fragment (scFv) to target the PD-1/PD-L1 pathway, MDSCs and TAMs. RESULTS We found that the PD-1-TREM2-targeting scFv inhibited the activation of the PD-1/PD-L1 pathway. In addition, these secreted scFvs blocked the binding of ligands to TREM2 receptors present on MDSCs and TAMs, reduced the proportion of MDSCs and TAMs, and enhanced T-cell effector function, thereby mitigating immune resistance in the TME. PD-1-TREM2 scFv-secreting CAR-T cells resulted in highly effective elimination of tumors compared to that achieved with PD-1 scFv-secreting CAR-T therapy in a subcutaneous CRC mouse model. Moreover, the PD-1-TREM2 scFv secreted by CAR-T cells remained localized within tumors and exhibited an extended half-life. CONCLUSIONS Together, these results indicate that PD-1-TREM2 scFv-secreting CAR-T cells have strong potential as an effective therapy for CRC.
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Affiliation(s)
- Jian Chen
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Zhuhai, Guangdong, China
| | - Tianchuan Zhu
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Zhuhai, Guangdong, China
| | - Guanmin Jiang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Zhuhai, Guangdong, China
| | - Qi Zeng
- Department of Oncology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Zhuhai, Guangdong, China
| | - Zhijian Li
- The Fourth People's Hospital of Foshan, 528000, Foshan, Guangdong, China
| | - Xi Huang
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Zhuhai, Guangdong, China.
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Lin M, Hu S, Zeng Q, Xiao B, He Y. Screening anti-fatigue components of American ginseng saponin by analyzing spectrum-effect relationship coupled with UPLC-Q-TOF-MS. ASIAN BIOMED 2023; 17:163-172. [PMID: 37860679 PMCID: PMC10584381 DOI: 10.2478/abm-2023-0057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Background American ginseng has an obvious anti-fatigue effect, but the effective material basis is still unclear. The spectrum-effect relationship is a scientific method that studies the correlations between chemical spectra and pharmacological effect. Objective To reveal the real bioactive compounds in American ginseng saponin (AGS) based on a study of the underlying correlations between these compounds' occurrence in rat serum after their intake of AGS and the anti-fatigue effect of AGS. Methods We utilized ultra-performance liquid chromatography (UPLC) with quadrupole and time-of-flight mass spectrometry (Q-TOF-MS) to analyze the extract of AGS and its constituents in serum after oral administration in rats. The anti-fatigue effect of AGS in rats was measured using the time weight-bearing swimming technique, the content of blood urea nitrogen, hepatic glycogen, and blood lactic acid. The relationship between the peak area values in fingerprints from rat serum and pharmacodynamic parameters of AGS was established using correlation analysis with partial least square regression (PLSR) method and gray correlation method. Results We detected and identified 22 compounds from extract, and 8 prototype components from serum. Through PLSR and gray correlation method, it was found that the ginsenosides Re, Rb1, and Rb2 were significantly positively related to the pharmacodynamic data. Conclusions Based on the spectrum-effect relationship, PLSR and gray correlation method can be used to screen for the anti-fatigue components available in AGS. Such an approach is of practical significance as it provides an effective means for exploring the material basis for the efficacy of American ginseng, particularly as an anti-fatigue agent.
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Affiliation(s)
- Meiyu Lin
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan410208, China
| | - Shaiping Hu
- School of Pharmacy, Changsha Medical University, Changsha, Hunan410209, China
| | - Qi Zeng
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan410208, China
| | - Bixia Xiao
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan410208, China
| | - Yao He
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan410208, China
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