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Yun WJ, Li J, Yin NC, Zhang CY, Cui ZG, Zhang L, Zheng HC. The facilitating effects of KRT80 on chemoresistance, lipogenesis, and invasion of esophageal cancer. Cancer Biol Ther 2024; 25:2302162. [PMID: 38241178 PMCID: PMC10802210 DOI: 10.1080/15384047.2024.2302162] [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: 07/14/2023] [Accepted: 01/02/2024] [Indexed: 01/21/2024] Open
Abstract
Keratin 80 (KRT80) is a filament protein that makes up one of the major structural fibers of epithelial cells, and involved in cell differentiation and epithelial barrier integrity. Here, KRT80 mRNA expression was found to be higher in esophageal cancer than normal epithelium by RT-PCR and bioinformatics analysis (p < .05), opposite to KRT80 methylation (p < .05). There was a negative relationship between promoter methylation and expression level of KRT80 gene in esophageal cancer (p < .05). KRT80 mRNA expression was positively correlated with the differentiation, infiltration of immune cells, and poor prognosis of esophageal cancer (p < .05). KRT80 mRNA expression was positively linked to no infiltration of immune cells, the short survival time of esophageal cancers (p < .05). The differential genes of KRT80 mRNA were involved in fat digestion and metabolism, peptidase inhibitor, and intermediate filament, desosome, keratinocyte differentiation, epidermis development, keratinization, ECM regulator, complement cascade, metabolism of vitamins and co-factor (p < .05). KRT-80-related genes were classified into endocytosis, cell adhesion molecule binding, cadherin binding, cell-cell junction, cell leading edge, epidermal cell differentiation and development, T cell differentiation and receptor complex, plasma membrane receptor complex, external side of plasma membrane, metabolism of amino acids and catabolism of small molecules, and so forth (p < .05). KRT80 knockdown suppressed anti-apoptosis, anti-pyroptosis, migration, invasion, chemoresistance, and lipogenesis in esophageal cancer cells (p < .05), while ACC1 and ACLY overexpression reversed the inhibitory effects of KRT80 on lipogenesis and chemoresistance. These findings indicated that up-regulated expression of KRT80 might be involved in esophageal carcinogenesis and subsequent progression, aggravate aggressive phenotypes, and induced chemoresistance by lipid droplet assembly and ACC1- and ACLY-mediated lipogenesis.
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Affiliation(s)
- Wen-Jing Yun
- Department of Oncology, The Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Jun Li
- Department of Thoracic Surgery, Shandong Provincial Hospital, Jinan, China
| | - Nan-Chang Yin
- Department of Thoracic Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Cong-Yu Zhang
- Cancer Center, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zheng-Guo Cui
- Department of Environmental Health, University of Fukui School of Medical Sciences, Fukui, Japan
| | - Li Zhang
- Department of Oncology, The Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Hua-Chuan Zheng
- Department of Oncology, The Affiliated Hospital of Chengde Medical University, Chengde, China
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Wang Y, Huang XM, Zhang Y, Li J, Li J, Ye Z, Peng Y, Zhang XJ, Tang N, Qiu WW, Xu L. Comparison of ultrasound features and lesion sites in dysfunctional arteriovenous fistula. Ren Fail 2024; 46:2294148. [PMID: 38186351 PMCID: PMC10776081 DOI: 10.1080/0886022x.2023.2294148] [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: 12/06/2023] [Indexed: 01/09/2024] Open
Abstract
This study aimed to investigate ultrasound features of arteriovenous fistula stenosis and their relationship with primary patency after percutaneous transluminal angioplasty (post-intervention primary patency) and compare this classification with that using lesion location. Hemodialysis patients who underwent ultrasound-guided percutaneous transluminal angioplasty for arteriovenous fistula stenosis from July 2020 to December 2021 were retrospectively evaluated. Lesions (excluding inflow arteries) were categorized into five groups based on ultrasound features, and the clinical characteristics and risk factors affecting the post-intervention primary patency of the arteriovenous fistula were analyzed. Among 185 patients, 100 (54.05%), 36 (19.46%), 22 (11.89%), 11 (5.95%), and 16 (8.65%) were classified into the intima-dominant, non-intima-dominant, valve obstruction, vascular calcification, and mixed groups, respectively. The dialysis duration and arteriovenous fistula use time were the highest in the vascular calcification group at 86 (interquartile range: 49-140) and 77 (interquartile range: 49-110) months, respectively. Diabetes mellitus was most common in the intima-dominant group (42.0%). In Kaplan-Meier and univariate Cox analysis, type III lesion location (stenosis in the venous confluence site) was associated with the lower post-intervention primary patency. In the multivariate Cox analysis, percutaneous transluminal angioplasty times (the number of times patients were treated with percutaneous transluminal angioplasty for arteriovenous fistula stenosis dysfunction), vascular calcification, calcification at the lesion site requiring percutaneous transluminal angioplasty, and serum parathyroid hormone levels were independent risk factors for post-intervention primary patency. Ultrasound features showed that calcification of the arteriovenous fistula was detrimental to the post-intervention primary patency of arteriovenous fistula.
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Affiliation(s)
- Yin Wang
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-mei Huang
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Zhang
- Department of Ultrasound, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingjing Li
- Department of Ultrasound, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Li
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Ye
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Peng
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xian-jin Zhang
- Department of Nephrology, Hubei Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Wuhan, China
| | - Na Tang
- Department of Nephrology, Union Jiangbei Hospital of Huazhong University of Science and Technology, Wuhan Caidian District People’s Hospital, Wuhan, China
| | - Wen-wen Qiu
- Department of Nephrology, Wuhan Huangpi District People’s Hospital, Wuhan, China
| | - Li Xu
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Tan J, Zhang H, Liu L, Li J, Fu Q, Li Y, Wu C, Deng R, Wang J, Xu B, Chen W, Yang S, Wang C. Value of original and modified pathological scoring systems for prognostic prediction in paraffin-embedded donor kidney core biopsy. Ren Fail 2024; 46:2314630. [PMID: 38345067 PMCID: PMC10863519 DOI: 10.1080/0886022x.2024.2314630] [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: 08/17/2023] [Accepted: 01/31/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND No study has validated, compared and adapted scoring systems for prognosis prediction based on donor kidney core biopsy (CB), with less glomeruli than wedge biopsy. METHODS A total of 185 donor kidney CB specimens were reviewed using seven scoring systems. The association between the total score, item scores, score-based grading, and allograft prognosis was investigated. In specimens with less than ten glomeruli (88/185, 47.6%), scoring systems were modified by adjusting weights of the item scores. RESULTS The Maryland aggregate pathology index (MAPI) score-based grading and periglomerular fibrosis (PGF) associated with delayed graft function (DGF) (Grade: OR = 1.59, p < 0.001; PGF: OR = 1.06, p = 0.006). Total score, score-based grading and chronic lesion score in scoring systems associated with one-year and 3-year eGFR after transplantation. Total-score-based models had similar predictive capacities for eGFR in all scoring systems, except MAPI and Ugarte. Score of glomerulosclerosis (GS), interstitial fibrosis (IF), tubular atrophy (TA), and arteriolar hyalinosis (AH) had good eGFR predictive capacities. In specimens with less than ten glomeruli, modified scoring systems had better eGFR predictive capacities than original scoring systems. CONCLUSIONS Scoring systems could predict allograft prognosis in paraffin-embedded CB with ten more glomeruli. A simple and pragmatic scoring system should include GS, IF, TA and AH, with weights assigned based on predictive capacity for prognosis. Replacing GS scores with tubulointerstitial scores could significantly improve the predictive capacity of eGFR. The conclusion should be further validated in frozen section.
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Affiliation(s)
- Jinghong Tan
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huanxi Zhang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Longshan Liu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory on Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, China
| | - Jun Li
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qian Fu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan Li
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chenglin Wu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ronghai Deng
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jiali Wang
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bowen Xu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenfang Chen
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shicong Yang
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Changxi Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Lei Z, Li S, Feng H, Wu X, Hu S, Li J, Xu G, Ren L, Pan S. Effects of intravenous rtPA in patients with minor stroke. Ann Med 2024; 56:2304653. [PMID: 38289926 PMCID: PMC10829835 DOI: 10.1080/07853890.2024.2304653] [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: 08/26/2023] [Accepted: 12/29/2023] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Whether minor ischemic stroke (MIS) patients can benefit from intravenous thrombolysis (IVT) remains controversial. The association between the efficacy of IVT and baseline National Institute of Health Stroke Scale (NIHSS) score is unclear in MIS, while the association in moderate and severe stroke is known. This study aimed to explore the effect of IVT in patients with MIS and analyze its efficacy in patients with different baseline NIHSS scores. METHODS Patients with a NIHSS score ≤5 within 4.5 h of stroke onset were screened in 32 centers. Patients with and without IVT were matched to a ratio of 1:1 with propensity scores. An excellent outcome was defined as a modified Rankin Scale (mRS) score ≤1 at three months after stroke onset. Safety outcomes included mortality and symptomatic intracranial hemorrhage (sICH). Multivariate analysis was used to compute the adjusted odds ratio (OR) for excellent outcomes. The effect of IVT was further analyzed in subgroups according to the baseline NIHSS score. RESULTS Of the 23,853 screened, 3336 patients with MIS who arrived at the hospital within 4.5 h of onset were included. The 1163 patients treated with IVT were matched with 1163 patients without IVT. IVT in minor strokes generated an adjusted OR of 1.38 (95% CI: 1.09-1.75, p = 0.009) for excellent outcomes. There were no significant differences in mortality (0.17% vs. 0.09%, p = 1.000) and sICH (0.69% vs. 0.86%, p = 0.813) between patients with and without IVT. Subgroup analysis showed that there was no significant effect of IVT in the baseline NIHSS 0-1 or 2-3 subgroups, with adjusted OR of 0.816 (95% CI 0.437-1.53, p = 0.525) and1.22 (95% CI 0.845-1.77, p = 0.287), respectively. In patients with NIHSS score of 4-5, IVT was significantly effective, with an adjusted OR of 1.53 (95% CI 1.02-2.30, p = 0.038). CONCLUSION IVT can improve MIS outcomes. The risks of sICH and mortality did not increase, especially in patients with NIHSS scores 4 to 5, who could benefit from IVT significantly.
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Affiliation(s)
- Zhihao Lei
- Department of Neurology, Nanfang Hospital, Southern Medical University/The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Neurology, Shenzhen Second People’s Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- Shenzhen Cerebrovascular Disease Treatment and Quality Control Center, Shenzhen, China
| | - Shuanglin Li
- Department of Anatomy and Histology, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong, China
| | - Hongye Feng
- Department of Neurology, Shenzhen Second People’s Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- Shenzhen Cerebrovascular Disease Treatment and Quality Control Center, Shenzhen, China
| | - Xiaohong Wu
- Department of Neurology, Shenzhen Second People’s Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- Shenzhen Cerebrovascular Disease Treatment and Quality Control Center, Shenzhen, China
| | - Shiyu Hu
- Department of Neurology, Shenzhen Second People’s Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- Shenzhen Cerebrovascular Disease Treatment and Quality Control Center, Shenzhen, China
| | - Jun Li
- Department of Neurology, Shenzhen Second People’s Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- Shenzhen Cerebrovascular Disease Treatment and Quality Control Center, Shenzhen, China
| | - Gelin Xu
- Department of Neurology, Shenzhen Second People’s Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- Shenzhen Cerebrovascular Disease Treatment and Quality Control Center, Shenzhen, China
| | - Lijie Ren
- Department of Neurology, Shenzhen Second People’s Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- Shenzhen Cerebrovascular Disease Treatment and Quality Control Center, Shenzhen, China
| | - Suyue Pan
- Department of Neurology, Nanfang Hospital, Southern Medical University/The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
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Hu S, Zhu M, Xing H, Xue Y, Li J, Wang Z, Zhu Z, Fang M, Li Z, Xu J, He Y, Zhang N. Thread-structural microneedles loaded with engineered exosomes for annulus fibrosus repair by regulating mitophagy recovery and extracellular matrix homeostasis. Bioact Mater 2024; 37:1-13. [PMID: 38515611 PMCID: PMC10951295 DOI: 10.1016/j.bioactmat.2024.03.006] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/09/2024] [Accepted: 03/04/2024] [Indexed: 03/23/2024] Open
Abstract
Low back pain is among the most grave public health concerns worldwide and the major clinical manifestation of intervertebral disc degeneration (IVDD). The destruction of annulus fibrosus (AF) is the primary cause of IVDD. A sustainable and stable treatment system for IVDD is lacking because of the special organizational structure and low nutrient supply of AF. We here found that IVDD results in the impaired mitochondrial function of AF tissue, and mitochondrial autophagy (mitophagy) plays a protective role in this process. We therefore reported a thread-structural microneedle (T-MN) matching the ring structure of AF. Based on the adsorption effect of laminin, our T-MN could load with bone marrow mesenchymal stem cell-derived exosomes to envelope the regulating mitophagy microRNA (miRNA 378), named as T-MN@EXO@miR-378. In general, we offered in situ locking in the defect site of AF to prevent nucleus pulposus leakage and promoted AF repair. The design of the thread structure was aimed at bionically matching the layered AF structure, thereby providing stronger adhesion. The T-MN@EXO@miR-378 effectively attached to AF and slowly released therapeutic engineered exosomes, and prevented IVDD progression by restoring mitophagy, promoting AF cell proliferation and migration, and inhibiting the pathological remodeling of the extracellular matrix. This functional system can be used as an excellent tool for sustained drug release and has a certain prospect in substituting the conventional treatment of IVDD.
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Affiliation(s)
- Shaojun Hu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Meng Zhu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Hongyuan Xing
- Department of Orthopaedics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, PR China
| | - Yucheng Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Jun Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Zhan Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Zhou Zhu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Miaojie Fang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Zilong Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Jianbin Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Ning Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
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Yang Y, Liu T, Li J, Yan D, Hu Y, Wu P, Fang F, McQuillan PM, Hang W, Leng J, Hu Z. General anesthetic agents induce neurotoxicity through astrocytes. Neural Regen Res 2024; 19:1299-1307. [PMID: 37905879 DOI: 10.4103/1673-5374.385857] [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: 04/19/2023] [Accepted: 09/09/2023] [Indexed: 11/02/2023] Open
Abstract
ABSTRACT Neuroscientists have recognized the importance of astrocytes in regulating neurological function and their influence on the release of glial transmitters. Few studies, however, have focused on the effects of general anesthetic agents on neuroglia or astrocytes. Astrocytes can also be an important target of general anesthetic agents as they exert not only sedative, analgesic, and amnesic effects but also mediate general anesthetic-induced neurotoxicity and postoperative cognitive dysfunction. Here, we analyzed recent advances in understanding the mechanism of general anesthetic agents on astrocytes, and found that exposure to general anesthetic agents will destroy the morphology and proliferation of astrocytes, in addition to acting on the receptors on their surface, which not only affect Ca2+ signaling, inhibit the release of brain-derived neurotrophic factor and lactate from astrocytes, but are even involved in the regulation of the pro- and anti-inflammatory processes of astrocytes. These would obviously affect the communication between astrocytes as well as between astrocytes and neighboring neurons, other neuroglia, and vascular cells. In this review, we summarize how general anesthetic agents act on neurons via astrocytes, and explore potential mechanisms of action of general anesthetic agents on the nervous system. We hope that this review will provide a new direction for mitigating the neurotoxicity of general anesthetic agents.
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Affiliation(s)
- Yanchang Yang
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Tiantian Liu
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- Department of Anesthesiology, Ningbo Women and Children's Hospital, Ningbo, Zhejiang Province, China
| | - Jun Li
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- Department of Anesthesiology, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, Zhejiang Province, China
| | - Dandan Yan
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Yuhan Hu
- Cell Biology Department, Yale University, New Haven, CT, USA
| | - Pin Wu
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Fuquan Fang
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Patrick M McQuillan
- Department of Anesthesiology, Penn State Hershey Medical Centre, Penn State College of Medicine, Hershey, PA, USA
| | - Wenxin Hang
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Jianhang Leng
- Department of Central Laboratory, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Zhiyong Hu
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
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Zhu Z, Zhang Y, Li J, Han Y, Wang L, Zhang Y, Geng H, Zheng Y, Wang X, Sun C, Li B, Chen P. Mass spectrometry imaging-based metabolomics highlights spatial metabolic alterations in three types of liver injuries. J Pharm Biomed Anal 2024; 242:116030. [PMID: 38382318 DOI: 10.1016/j.jpba.2024.116030] [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: 09/11/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
Liver's distinctive function renders it highly susceptible to diverse damage sources. Characterizing the metabolic profiles and spatial signatures in different liver injuries is imperative for early diagnosis and etiology-oriented treatment. In this comparative study, we conducted whole-body spatial metabolomics on zebrafish with liver injury induced by ethanol (EtOH), acetaminophen (APAP), and thioacetamide (TAA). The two specific levels, the whole-body and liver-specific metabolic profiles, as well as their regional distributions, were systematically mapped in situ by mass spectrometry imaging, which is distinct from conventional LC-MS and GC-MS methods. We found that liver injury regions exhibited more pronounced metabolic reprogramming than the entire organism, leading to significant alterations in eight fatty acids, three phospholipids, and four low-molecular-weight metabolites. More importantly, fatty acids as well as small molecule metabolites including glutamine, glutamate, taurine and malic acid displayed contrasting changes between alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD). In addition, phospholipids, including Lyso PC (16:0) and Lyso PE (18:0), demonstrated notable down-regulation in all damaged liver, whereas PC (34:1) underwent upregulation. This study not only deepens insights into distinct potential biomarkers for liver injuries, but also underscores spatial metabolomics as a powerful tool to elucidate possible pathogenic mechanisms in other metabolic diseases.
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Affiliation(s)
- Zihan Zhu
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yun Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China
| | - Jun Li
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yuhao Han
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Lei Wang
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Yaqi Zhang
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Haoyuan Geng
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Yurong Zheng
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Xiao Wang
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Chenglong Sun
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Baoguo Li
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Panpan Chen
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
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Zhu Z, Xu X, Huang J, Xu G, Liu S, Hong F, Chen Y, Yi X, Li H, Li J. Transcriptomic analysis of Vibrio alginolyticus challenged by Rhizoma coptidis reveals mechanisms of virulence genes. Gene 2024; 905:148188. [PMID: 38278336 DOI: 10.1016/j.gene.2024.148188] [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: 06/22/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 01/28/2024]
Abstract
Rhizoma coptidis, a Chinese herbal medicine widely used to treat various bacterial infections, has the potential to develop antibiotic substitutes to overcome the drug resistance of Vibrio alginolyticus. To study the inhibitory effect of R. coptidis on V. alginolyticus, we sequenced the transcriptomes of three groups of samples of wild-type V. alginolyticus (CK) and V. alginolyticus, which were stressed by 5 mg/mL R. coptidis for 2 h (RC_2 h) and 4 h (RC_4 h). CK was compared with RC_2 h and RC_4 h, respectively, and a total of 1565 differentially expressed genes (DEGs) (988 up-regulated and 577 down-regulated) and 1737 DEGs (1152 up-regulated and 585 down-regulated) were identified. Comparing RC_2 h with RC_4 h, 156 DEGs (114 up-regulated and 42 down-regulated) were identified. The ability of biofilm formation and motility of V. alginolyticus altered upon with different concentrations of R. coptidis. Interestingly, relative expression patterns of virulence genes appeared statistically significantly varied, upon different concentrations of R. coptidis extract. DEGs were annotated to the Gene Ontology (GO) database for function enrichment analysis and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, the results showed that the main enriched pathways, was those related to the virulence of V. alginolyticus. This study provides a new perspective for understanding the complex pathogenic mechanism of V. alginolyticus. R. coptidis could potnetially be used as alternative or complimnetary to antibiotics to treat infections after further research.
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Affiliation(s)
- Zhiqin Zhu
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China
| | - XiaoJin Xu
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China; Fujian Province Key Laboratory of Special Aquatic Formula Feed (Fujian Tianma Science and Technology Group Co., Ltd, China.
| | - Jiangyuan Huang
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China
| | - Genhuang Xu
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China
| | - ShiChao Liu
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China
| | - Fei Hong
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China
| | - Yunong Chen
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China
| | - Xin Yi
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China
| | - Huiyao Li
- Fisheries Research Institute of Fujian, Xiamen 361013, China
| | - Jun Li
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen, Fujian 361021, China, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fujian Province, Xiamen 361021, China.
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Ying J, Wang P, Jin X, Luo L, Lai K, Li J. TGF-β1 Mediates the EndoMt in High Glucose-Treated Human Retinal Microvascular Endothelial Cells. Semin Ophthalmol 2024; 39:312-319. [PMID: 38192082 DOI: 10.1080/08820538.2023.2300806] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024]
Abstract
The purpose of our study was to investigate the role of TGF-β1 in the endothelial-to-mesenchymal transition (EndoMT) and fibrosis in high glucose (HG)-treated human retinal microvascular endothelial cells (HRMECs). HRMECs were cultured not only under normal glucose (NG) conditions with or without TGF-β1, but also under HG conditions with or without the TGF-β1 inhibitor SB431542. The expression of TGF-β1 was detected by real time-PCR and enzyme-linked immunosorbent assay. Morphological changes and migration of the HRMECs were observed using electron microscopy and scratch-wound assay. Endothelial markers, such as CD31 and vascular endothelial (VE)-cadherin, and the acquisition of fibrotic markers, such as alpha smooth muscle actin (α-SMA) and fibroblast-specific protein-1 (FSP-1), were determined by immunofluorescent staining and western blot. The level of TGF-β1 was significantly upregulated in HG-treated HRMECs. And HG stimulation promoted obvious morphological changes and the migration ability in HRMECs. Our results also demonstrated increased expression of α-SMA and FSP-1, and decreased expression of CD31 and VE-cadherin, in HG-treated HRMECs. These EndoMT-related changes were promoted by TGF-β1 and abrogated by SB431542. The results of this study demonstrated the important role of TGF-β1 in HG-induced vitreoretinal fibrosis. EndoMT is likely to be involved in the associated effects.
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Affiliation(s)
- Jia Ying
- Department of Ophthalmology, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, PR China
| | - Peipei Wang
- Department of Stomatology, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, PR China
| | - Xiao Jin
- Department of Ophthalmology, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, PR China
| | - Li Luo
- Department of Ophthalmology, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, PR China
| | - Keshuang Lai
- Department of Ophthalmology, Yunhe County Hospital of traditional Chinese medicine, Lishui, PR China
| | - Jun Li
- Department of Ophthalmology, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, PR China
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Chen X, Huang H, Song X, Dong T, Yu J, Xu J, Cheng R, Cui T, Li J. Carboxymethyl chitosan-based hydrogel-Janus nanofiber scaffolds with unidirectional storage-drainage of biofluid for accelerating full-thickness wound healing. Carbohydr Polym 2024; 331:121870. [PMID: 38388058 DOI: 10.1016/j.carbpol.2024.121870] [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: 11/27/2023] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 02/24/2024]
Abstract
Self-pumping wound scaffolds designed for directional biofluid transport are extensively investigated. They efficiently extract excessive biofluids from wounds, while maintaining an optimally humid wound environment, thus facilitating rapid wound healing. However, the existing designed scaffolds are insufficiently focused on stimulating the hydrophobic layer at the wound site, thereby exacerbating inflammation and impeding the wound healing process. Herein, we engineered and fabricated a hydrophilic-hydrophobic-hydrophilic sandwich-structured hydrogel-Janus nanofiber scaffold (NFS) employing a Layer-by-Layer (LbL) method. This scaffold comprises a hydrophilic carboxymethyl chitosan/silver (CMCS-Ag) hydrogel component in conjunction with a poly(caprolactone)/poly(caprolactone)-poly(citric acid)-co-ε-polylysine (PCL/PCL-PCE) Janus NFS. It is noteworthy that the hydrogel-Janus nanofiber scaffold not only demonstrates outstanding water absorption (202.2 %) and unidirectional biofluid transport capability but also possesses high breathability (308.663 m3/m2 h kPa), appropriate pore size (6.7-7.5 μm), excellent tensile performance (270 ± 10 %), and superior mechanical strength (26.36 ± 1.77 MPa). Moreover, in vitro experimentation has convincingly demonstrated the impeccable biocompatibility of hydrogel-Janus NFS. The inherent dual-antibacterial properties in CMCS-Ag and PCE significantly augment fibroblast proliferation and migration. In vivo studies further underscore its capability to expedite wound healing by absorption and expulsion of wound exudates, thereby fostering collagen deposition and vascularization. As such, this work potentially provides fresh insights into the design and fabrication of multifunctional biomimetic scaffolds, holding immense potential in the medical field for efficient wound healing.
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Affiliation(s)
- Xinhao Chen
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Hui Huang
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Xinru Song
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Ting Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, PR China
| | - Jiafei Yu
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Jieyan Xu
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China
| | - Rui Cheng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, PR China.
| | - Tingting Cui
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China; State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, PR China.
| | - Jun Li
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 210000, PR China.
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11
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Heng H, Yang X, Zhang H, Sun R, Ye L, Li J, Chan EWC, Zhang R, Chen S. Early detection of OXA-232-producing Klebsiella pneumoniae in China predating its global emergence. Microbiol Res 2024; 282:127672. [PMID: 38447456 DOI: 10.1016/j.micres.2024.127672] [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: 01/11/2024] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 03/08/2024]
Abstract
Antibiotic resistance is a global health issue, with Klebsiella pneumoniae (KP) posing a particular threat due to its ability to acquire resistance to multiple drug classes rapidly. OXA-232 is a carbapenemase that confers resistance to carbapenems, a class of antibiotics often used as a last resort for treating severe bacterial infections. The study reports the earliest known identification of six OXA-232-producing KP strains that were isolated in Zhejiang, China, in 2008 and 2009 within a hospital, two years prior to the first reported identification of OXA-232 in France. The four KP strains carry the OXA-232 gene and exhibit hypervirulent loci, suggesting a broader temporal and geographical spread and integration of this resistance and virulence than previously recognized with implications for public health. Global analysis of all OXA-232-bearing KP strains revealed that OXA-232-encoding plasmids are conservative, while the strains were very diverse suggesting the plasmid mediated transmission of this carbapenemase genes. Importantly, a large proportion of the OXA-232-bearing KP strains also carried virulence plasmids, in particular the recent emergence of ST15 type of KP that carried both OXA-232-encoding plasmids and hypervirulent (hv) plasmids in China since 2019, highlighting the importance of the emergence of this type of KP strains in clinical setting. The early detection and investigations of OXA-232 in these strains warrants the retrospective studies to uncover the true timeline of antibiotic resistance spread, which could provide valuable insights for shaping future strategies to tackle the global health crisis.
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Affiliation(s)
- Heng Heng
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region; State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong Special Administrative Region
| | - Xuemei Yang
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Haoshuai Zhang
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Ruanyang Sun
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
| | - Lianwei Ye
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region; State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong Special Administrative Region
| | - Jun Li
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region
| | - Edward Wai-Chi Chan
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong Special Administrative Region
| | - Rong Zhang
- Department of Clinical Laboratory, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, Zhejiang, China
| | - Sheng Chen
- State Key Lab of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Kowloon, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Food Biological Safety Control, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China.
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Lv Y, Wang H, Zheng D, Shi M, Bi D, Hu Q, Zhi H, Lou D, Li J, Wei S, Hu Y. Environmental arsenic pollution induced liver oxidative stress injury by regulating miR-155 through inhibition of AUF1. Sci Total Environ 2024; 922:171237. [PMID: 38423337 DOI: 10.1016/j.scitotenv.2024.171237] [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: 11/24/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
Arsenic (As), a common environmental pollutant, has become a hot topic in recent years due to its potentially harmful effects. Liver damage being a central clinical feature of chronic arsenic poisoning. However, the underlying mechanisms remain unclear. We demonstrated that arsenic can lead to oxidative stress in the liver and result in structural and functional liver damage, significantly correlated with the expression of AUF1, Dicer1, and miR-155 in the liver. Interestingly, knockdown AUF1 promoted the up-regulatory effects of arsenic on Dicer1 and miR-155 and the inhibitory effects on SOD1, which exacerbated oxidative damage in rat liver. However, overexpression of AUF1 reversed the up-regulatory effects of arsenic on Dicer1 and miR-155, restored arsenic-induced SOD1 depletion, and attenuated liver oxidative stress injury. Further, we verified the mechanism and targets of miR-155 in regulating SOD1 by knockdown/overexpression of miR-155 and nonsense mutant SOD1 3'UTR experiments. In conclusion, these results powerfully demonstrate that arsenic inhibits AUF1 protein expression, which in turn reduces the inhibitory effect on Dicer1 expression, which promotes miR-155 to act on the SOD1 3'UTR region after high expression, thus inhibiting SOD1 protein expression and enzyme activity, and inducing liver injury. This finding provides a new perspective for the mechanism research and targeted prevention of arsenic poisoning, as well as scientific evidence for formulating strategies to prevent and control environmental arsenic pollution.
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Affiliation(s)
- Ying Lv
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Hongling Wang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Dan Zheng
- Guiyang Maternity and Child Health Hospital, Guiyang 550003, Guizhou, China
| | - Mingyang Shi
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Dingnian Bi
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Qian Hu
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Haiyan Zhi
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Didong Lou
- Department of Forensic Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, China; Key Laboratory of Traditional Chinese Medicine Toxicology in Forensic Medicine, Guizhou Education Department, Guiyang 550025, Guizhou, China
| | - Jun Li
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Shaofeng Wei
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China
| | - Yong Hu
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 561113, Guizhou, China.
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Wu MY, Chen L, Liu LC, Liu MJ, Li YF, Zheng HY, Leng L, Zou YJ, Chen WJ, Li J. Using circulating microbial cell-free DNA to identify persistent Treponema pallidum infection in serofast syphilis patients. iScience 2024; 27:109399. [PMID: 38523794 PMCID: PMC10959656 DOI: 10.1016/j.isci.2024.109399] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/06/2024] [Accepted: 02/28/2024] [Indexed: 03/26/2024] Open
Abstract
The question of whether serofast status of syphilis patients indicates an ongoing low-grade Treponema pallidum (T. pallidum) infection remains unanswered. To address this, we developed a machine learning model to identify T. pallidum in cell-free DNA (cfDNA) using next-generation sequencing (NGS). Our findings showed that a TP_rate cut-off of 0.033 demonstrated superior diagnostic performance for syphilis, with a specificity of 92.3% and a sensitivity of 71.4% (AUROC = 0.92). This diagnosis model predicted that 20 out of 92 serofast patients had a persistent low-level infection. Based on these predictions, re-treatment was administered to these patients and its efficacy was evaluated. The results showed a statistically significant decrease in RPR titers in the prediction-positive group compared to the prediction-negative group after re-treatment (p < 0.05). These findings provide evidence for the existence of T. pallidum under serofast status and support the use of intensive treatment for serofast patients at higher risk in clinical practice.
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Affiliation(s)
- Meng Yin Wu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Lu Chen
- Beijing Macro & Micro-test Bio-Tech Co., Ltd, Beijing 100083, China
| | - Li Cheng Liu
- Beijing Macro & Micro-test Bio-Tech Co., Ltd, Beijing 100083, China
| | - Ming Juan Liu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Yan Feng Li
- Department of Neurology, Peking Union Medical College Hospital, Beijing 100730, China
| | - He Yi Zheng
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Ling Leng
- State Key Laboratory of Complex Severe and Rare Diseases, Translational Medicine Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Yi Jun Zou
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Jun Chen
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Li
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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14
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Li J, Hodson ME, Brown CD, Bottoms MJ, Ashauer R, Alvarez T. Earthworm lipid content and size help account for differences in pesticide bioconcentration between species. J Hazard Mater 2024; 468:133744. [PMID: 38367437 DOI: 10.1016/j.jhazmat.2024.133744] [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: 12/02/2023] [Revised: 01/21/2024] [Accepted: 02/05/2024] [Indexed: 02/19/2024]
Abstract
The uptake and elimination kinetics of pesticides from soil to earthworms are important in characterising the risk of pesticides to soil organisms and the risk from secondary poisoning. However, the understanding of the relative importance of chemical, soil, and species differences in determining pesticide bioconcentration into earthworms is limited. Furthermore, there is insufficient independent data in the literature to fully evaluate existing predictive bioconcentration models. We conducted kinetic uptake and elimination experiments for three contrasting earthworm species (Lumbricus terrestris, Aporrectodea caliginosa, Eisenia fetida) in five soils using a mixture of five pesticides (log Kow 1.69 - 6.63). Bioconcentration increased with pesticide hydrophobicity and decreased with soil organic matter. Bioconcentration factors were comparable between earthworm species for hydrophilic pesticides due to the similar water content of earthworm species. Inter-species variations in bioconcentration of hydrophobic pesticides were primarily accounted for by earthworm lipid content and specific surface area (SSA). Existing bioconcentration models either failed to perform well across earthworm species and for more hydrophilic compounds (log Kow < 2) or were not parameterised for a wide range of compounds and earthworm species. Refined models should incorporate earthworm properties (lipid content and SSA) to account for inter-species differences in pesticide uptake from soil.
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Affiliation(s)
- Jun Li
- Department of Environment and Geography, University of York, York, YO10 5NG, UK.
| | - Mark E Hodson
- Department of Environment and Geography, University of York, York, YO10 5NG, UK
| | - Colin D Brown
- Department of Environment and Geography, University of York, York, YO10 5NG, UK
| | - Melanie J Bottoms
- Syngenta Ltd, Jealotts Hill International Research Centre, Warfield, Bracknell, RG42 6EY, UK
| | - Roman Ashauer
- Department of Environment and Geography, University of York, York, YO10 5NG, UK; Syngenta Crop Protection AG Rosentalstr. 67 4058 Basel Switzerland
| | - Tania Alvarez
- Syngenta Ltd, Jealotts Hill International Research Centre, Warfield, Bracknell, RG42 6EY, UK
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Wang SK, Li J, Wang P, Li XY, Kong C, Ma J, Lu SB. Comparison of Four Nutritional Screening Tools for Predicting Postoperative Adverse Events Following Degenerative Spinal Deformity Surgery. Spine (Phila Pa 1976) 2024; 49:536-546. [PMID: 38258979 PMCID: PMC10962431 DOI: 10.1097/brs.0000000000004933] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024]
Abstract
STUDY DESIGN A retrospective study. OBJECTIVE To compare the mini nutritional assessment-short form (MNA-SF), geriatric nutritional risk index, prognostic nutritional index (PNI), and preoperative serum albumin level as predictors of postoperative adverse events (AEs) in degenerative spine deformity (DSD) patients. SUMMARY OF BACKGROUND DATA Although various nutritional screening tools have been well evaluated in patients undergoing spinal fusion surgery, the most suitable tool for the DSD population remains uncertain at present. PATIENTS AND METHODS The authors reviewed consecutive patients who underwent thoracolumbar fusion surgery for DSD between August 2016 and May 2023. Four screening tools were used to assess preoperative nutritional status. Patients were divided into two categories according to each screening tool, and the four screening tools were compared regarding their predictive power for postoperative AEs, including the rates of extended length of hospital stays (LOS), complications, and readmission within three months. Physical functional indicators such as time to first ambulation, nonhome discharge, and postoperative LOS were assessed as secondary outcome measures. A multivariable logistic regression analysis was used to identify factors associated with postoperative AEs. RESULTS A total of 228 patients were included. The demographic characteristics, underlying disease, and magnitude of correction were not significantly different between well-nourished and malnourished groups. The nutritional risks shown by MNA-SF and albumin level were significantly associated with infectious complications ( P <0.05). The nutritional risk shown by MNA-SF was significantly associated with nonhome discharge, prolonged postoperative LOS (12.5±8.2 vs. 10.3±6.1, P =0.039), and delayed ambulation (3.7±2.1 vs. 2.2±1.8, P =0.001). Multivariable logistic regression revealed that PNI <50 was significantly associated with total AEs and minor AEs after DSD surgery. CONCLUSIONS PNI was significantly associated with the incidence of total AEs and minor AEs, while preoperative albumin level and MNA-SF were more effective in predicting postoperative infectious complications and delayed recovery of physical function, respectively. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Shuai-Kang Wang
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Jun Li
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Peng Wang
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Xiang-Yu Li
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Chao Kong
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Jin Ma
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Shi-Bao Lu
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
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Fu R, Xu J, Guo Q, Liu T, Su X, Xu M, Zhao X, Wang F, Ji L, Qian W, Hou S, Li J, Zhang D, Guo H. Highly drug/target-tolerant neutralizing antibody (NAb) assay development through target-based drug depletion and drug-based NAb extraction for an anti-EGFR therapeutic monoclonal antibody. J Pharm Biomed Anal 2024; 241:116006. [PMID: 38309099 DOI: 10.1016/j.jpba.2024.116006] [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: 11/10/2023] [Revised: 01/26/2024] [Accepted: 01/26/2024] [Indexed: 02/05/2024]
Abstract
The reduction of immunogenicity is fundamental for the development of biobetter Erbitux, given that the development of an immune response reduces treatment efficacy and may lead to potential side effects. One of the requirements for the clinical research of a Erbitux biobetter candidate (CMAB009) is to develop a neutralizing antibody (NAb) assay, and sufficient drug and target tolerance for the assay is necessary. Here, we describe the development of a competitive ligand binding (CLB) assay for CMAB009 with high drug and target tolerance through target-based drug depletion and drug-based NAb extraction, the integrated experimental strategy was implemented to simultaneously mitigate drug interference and enhance target tolerance. Following troubleshooting and optimization, the NAb assay was validated for clinical sample analysis with the sensitivity of 92 ng/mL, drug tolerance of 70 μg/mL and target tolerance of 798 ng/mL. The innovative drug depletion and NAb extraction achieved though the combination of drug and target beads would enable the development of reliable NAb assays for many other therapeutics that overcome drug and its target interference for more precise and sensitive NAb assessment.
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Affiliation(s)
- Rongrong Fu
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China
| | - Jin Xu
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qingcheng Guo
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China; Taizhou Mabtech Pharmaceuticals Co., Ltd, Taizhou, China
| | - Tao Liu
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China; Department of Oncology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xinyi Su
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, Shanghai Zhangjiang Biotechnology Co., Ltd, Shanghai, China
| | - Mengjiao Xu
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China
| | - Xiang Zhao
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China
| | - Fugui Wang
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China
| | - Lusha Ji
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Weizhu Qian
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Sheng Hou
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jun Li
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China.
| | - Dapeng Zhang
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China.
| | - Huaizu Guo
- State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, China; NMPA Key Laboratory for Quality Control of Therapeutic Monoclonal Antibodies, Shanghai, China; State key laboratory of macromolecular drugs and large-scale manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China; State key laboratory of macromolecular drugs and large-scale manufacturing, Shanghai Zhangjiang Biotechnology Co., Ltd, Shanghai, China.
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17
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Zeng Y, Luo H, He D, Li J, Zhang A, Sun J, Xu J, Pan X. Influence mechanism of anions on iron doping into swine bone char: Promoting non-radical oxidation of acetaminophen in a Fenton-like system. Sci Total Environ 2024; 920:170982. [PMID: 38367723 DOI: 10.1016/j.scitotenv.2024.170982] [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: 12/19/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/19/2024]
Abstract
The application of iron-doped biochar in peroxymonosulfate (PMS) activation systems has gained increasing attention due to their effectiveness and environmental friendliness in addressing environmental issues. However, the behavioral mechanism of iron doping and the detailed 1O2 generation mechanism in PMS activation systems remain ambiguous. Here, we investigated the effects of three anions (Cl-, NO3-and SO42-) on the process of iron doping into bone char, leading to the synthesis of three iron-doped bone char (Fe-ClBC, Fe-NBC and Fe -SBC). These iron-doped bone char were used to catalyze PMS to degrade acetaminophen (APAP) and exhibited the following activity order: Fe-ClBC > Fe-NBC > Fe-SBC. Characterization results indicated that iron doping primarily occurred through the substitution of calcium in hydroxyapatite within BC. In the course of the impregnation, the binding of SO42- and Ca2+ hindered the exchange of iron ions, resulting in lower catalytic activity of Fe-SBC. The primary reactive oxygen species in the Fe-ClBC/PMS and Fe-NBC/PMS systems were both 1O2. 1O2 is produced through O2•- conversion and PMS self-dissociation, which involves the generation of metastable iron intermediates and electron transfer within iron species. The presence of oxygen vacancies and more carbon defects in the Fe-ClBC catalyst facilitates 1O2 generation, thereby enhancing APAP degradation within the Fe-ClBC/PMS system. This study is dedicated to in-depth exploration of the mechanisms underlying iron doping and defect materials in promoting 1O2 generation.
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Affiliation(s)
- Yifeng Zeng
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hongwei Luo
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Shaoxing Research Institute, Zhejiang University of Technology, Shaoxing 312085, China.
| | - Dongqin He
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jun Li
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Anping Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jianqiang Sun
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Juan Xu
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xiangliang Pan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
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18
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Yin X, Li J, Liu X, Huang K, Yang Y. Closed-loop process for selective leaching and recovery of palladium from spent auto-exhaust catalysts using iodotrihalide ionic liquids. J Hazard Mater 2024; 467:133665. [PMID: 38340560 DOI: 10.1016/j.jhazmat.2024.133665] [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: 10/12/2023] [Revised: 12/03/2023] [Accepted: 01/28/2024] [Indexed: 02/12/2024]
Abstract
The recovery of palladium from spent auto-exhaust catalysts (SAE-catalysts) is of great significance for resource sustainability. Herein, we proposed an efficient closed-loop leaching and recovery method for palladium from SAE-catalysts using iodotrihalide ionic liquids (ILs). Recovery design was explored aimed at green leaching and process simplification. Iodotrihalide ILs exhibited exceptional performance in terms of leaching efficiency (99.1%), selectivity (selectivity > 6.8 ×103) and reusability (over 6 cycles). The mechanism study revealed that excellent leaching performance was attributed to the redox and complexation. Additionally, the chemical reaction-controlled model was best suited to describe the leaching process. Notably, under the optimal conditions determined by the response surface methodology, a high-purity Pd(II) solution (purity > 99.8%) was obtained. More significantly, it was ideal for practical applications due to the low-viscosity (36.0 cP), mild (55 °C) and one-step leaching and recovery. In conclusion, this work provides an eco-friendly method for recovering palladium from SAE-catalysts with its non-high corrosiveness and low environmental impact.
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Affiliation(s)
- Xiaolu Yin
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Jun Li
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Xiaoxia Liu
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Kaiqiang Huang
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Yanzhao Yang
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
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Li J, Xie L, Liu G, Pu Z, Tong X, Yang S, Yang M, Liu J, Chen J, Meng Y, Wang Y, Wang T, Ge Z. Multifunctional Trifluoroborate Additive for Simultaneous Carrier Dynamics Governance and Defects Passivation to Boost Efficiency and Stability of Inverted Perovskite Solar Cells. Angew Chem Int Ed Engl 2024; 63:e202316898. [PMID: 38340024 DOI: 10.1002/anie.202316898] [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: 11/07/2023] [Revised: 01/09/2024] [Accepted: 02/09/2024] [Indexed: 02/12/2024]
Abstract
The main obstacles to promoting the commercialization of perovskite solar cells (PSCs) include their record power conversion efficiency (PCE), which still remains below the Shockley-Queisser limit, and poor long-term stability, attributable to crystallographic defects in perovskite films and open-circuit voltage (Voc) loss in devices. In this study, potassium (4-tert-butoxycarbonylpiperazin-1-yl) methyl trifluoroborate (PTFBK) was employed as a multifunctional additive to target and modulate bulk perovskite defects and carrier dynamics of PSCs. Apart from simultaneously passivating anionic and cationic defects, PTFBK could also optimize the energy-level alignment of devices and weaken the interaction between carriers and longitudinal optical phonons, resulting in a carrier lifetime of greater than 3 μs. Furthermore, it inhibited non-radiative recombination and improved the crystallization capacity in the target perovskite film. Hence, the target rigid and flexible p-i-n PSCs yielded champion PCEs of 24.99 % and 23.48 %, respectively. More importantly, due to hydrogen bonding between formamidinium and fluorine, the target devices exhibited remarkable thermal, humidity, and operational tracking at maximum power point stabilities. The reduced Young's modulus and residual stress in the perovskite layer also provided excellent bending stability for flexible target devices.
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Affiliation(s)
- Jun Li
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Lisha Xie
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Guanhao Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zhenwei Pu
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Xinyu Tong
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Shuncheng Yang
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Mengjin Yang
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Jian Liu
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Jiujiang Chen
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yuanyuan Meng
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Ying Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Tao Wang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Ziyi Ge
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
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Zhang Y, Li D, Zhang L, Li J, Fu Q, Zhu X, Liao Q. Response of current distribution in a liter-scale microbial fuel cell to variable operating conditions. Bioelectrochemistry 2024; 156:108622. [PMID: 38070364 DOI: 10.1016/j.bioelechem.2023.108622] [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: 07/06/2023] [Revised: 11/15/2023] [Accepted: 11/26/2023] [Indexed: 01/14/2024]
Abstract
Microbial fuel cells (MFCs) are an emerging technology in renewable energy and waste treatment and the scale-up is crucial for practical applications. Undoubtedly, the analysis and comprehension of MFC operation necessitate essential information regarding the response of the current distribution to variable operating conditions, which stands as one of its significant dynamic characteristics. In this study, the dynamic responses of current distribution to external stimuli (external load, temperature, pH, and electrolyte concentration) were investigated by employing a segmented anode current collector in a liter-scale MFC. The results demonstrated that, with respect to the anodic segment close to the cathode, a major response of the segment current to changes in load, temperature and pH was observed while minor response to changes in ion concentration. It was also found that external stimuli-induced high current usually led to a worse current distribution while increasing electrolyte ion concentration could simultaneously improve the maximal power generation and current distribution. In addition, the response time of segment current to input stimulus followed the pattern of temperature ˃ pH ˃ ion concentration ˃ external load. The results and implication of this study would be helpful in enhancing the operational stability of scale-up MFCs in future practical application.
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Affiliation(s)
- Yudong Zhang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China; School of Energy and Power Engineering, North University of China, Taiyuan 030051, China
| | - Dong Li
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Liang Zhang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China.
| | - Jun Li
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Qian Fu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Xun Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
| | - Qiang Liao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
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Wen H, Yuan X, Li C, Li J, Yue H. Two new isoquinoline alkaloids from Hypecoum leptocarpum Hook. f. et Thoms. Nat Prod Res 2024; 38:1392-1397. [PMID: 36377743 DOI: 10.1080/14786419.2022.2146108] [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: 09/03/2022] [Revised: 10/27/2022] [Accepted: 11/03/2022] [Indexed: 11/16/2022]
Abstract
Two new isoquinoline alkaloids, hypecocarpinine (1) and leptocaramine (2) along with five known ones including leptopidine (3), corydamine (4), protopine (5), dihydroprotopine (6) and oxohydrastinine (7), were isolated from Hypecoum leptocarpum Hook. f. et Thoms. Structures of the compounds were elucidated using spectroscopic methods, including UV, IR, HR-ESI-MS, 1 D and 2 D NMR. The cytotoxic activities of these compounds were evaluated using MTT assay. The results showed that compounds 2, 4, and 7 have moderate cytotoxicity against human lung cancer (A549) and human gastric carcinoma (MGC-803) cell lines.
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Affiliation(s)
- Huaixiu Wen
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P.R. China
| | - Xiang Yuan
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P.R. China
| | - Caixia Li
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P.R. China
| | - Jun Li
- Department of Biology and Pharmaceutical Technology, Ningxia Vocational and Technical College, Yinchuan, P.R. China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P.R. China
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22
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Yu C, Hu Y, Zhang Y, Luo W, Zhang J, Xu P, Qian J, Li J, Yu J, Liu J, Zhou W, Shao S. Concurrent enhancement of biomass production and phycocyanin content in salt-stressed Arthrospira platensis: A glycine betaine- supplementation approach. Chemosphere 2024; 353:141387. [PMID: 38331268 DOI: 10.1016/j.chemosphere.2024.141387] [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: 06/29/2023] [Revised: 01/07/2024] [Accepted: 02/03/2024] [Indexed: 02/10/2024]
Abstract
In industrial-scale cultivation of microalgae, salinity stress often stimulates high-value metabolites production but decreases biomass yield. In this research, we present an extraordinary response of Arthrospira platensis to salinity stress. Specifically, we observed a significant increase in both biomass production (2.58 g L-1) and phycocyanin (PC) content (22.31%), which were enhanced by 1.26-fold and 2.62-fold, respectively, compared to the control, upon exposure to exogenous glycine betaine (GB). The biochemical analysis reveals a significant enhancement in carbonic anhydrase activity and chlorophyll a level, concurrent with reductions in carbohydrate content and reactive oxygen species (ROS) levels. Further, transcriptomic profiling indicates a downregulation of genes associated with the tricarboxylic acid (TCA) cycle and an upregulation of genes linked to nitrogen assimilation, hinting at a rebalanced carbon/nitrogen metabolism favoring PC accumulation. This work thus presents a promising strategy for simultaneous enhancement of biomass production and PC content in A. platensis and expands our understanding of PC biosynthesis and salinity stress responses in A. platensis.
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Affiliation(s)
- Chunli Yu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Yao Hu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Yuqin Zhang
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Wei Luo
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Jing Zhang
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Peilun Xu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Jun Qian
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Jun Li
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China
| | - Jianfeng Yu
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Jin Liu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China; Center for Algae Innovation & Engineering Research, School of Resources and Environment, Nanchang University, Nanchang, China
| | - Wenguang Zhou
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China; Center for Algae Innovation & Engineering Research, School of Resources and Environment, Nanchang University, Nanchang, China.
| | - Shengxi Shao
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and School of Resources and Environment, Nanchang University, Nanchang, 330031, China; Center for Algae Innovation & Engineering Research, School of Resources and Environment, Nanchang University, Nanchang, China.
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23
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Xu G, Cui YS, Jiang XL, Xu CQ, Li J, Chen XD. Synthesis and characterization of iron clusters with an icosahedral [Fe@Fe 12] 16+ Core. Natl Sci Rev 2024; 11:nwad327. [PMID: 38487495 PMCID: PMC10939364 DOI: 10.1093/nsr/nwad327] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 03/17/2024] Open
Abstract
Iron-metal clusters are crucial in a variety of critical biological and material systems, including metalloenzymes, catalysts, and magnetic storage devices. However, a synthetic high-nuclear iron cluster has been absent due to the extreme difficulty in stabilizing species with direct iron-iron bonding. In this work, we have synthesized, crystallized, and characterized a (Tp*)4W4S12(Fe@Fe12) cluster (Tp* = tris(3,5-dimethyl-1-pyrazolyl)borate(1-)), which features a rare trideca-nuclear, icosahedral [Fe@Fe12] cluster core with direct multicenter iron-iron bonding between the interstitial iron (Fei) and peripheral irons (Fep), as well as Fep···Fep ferromagnetic coupling. Quantum chemistry studies reveal that the stability of the cluster arises from the 18-electron shell-closing of the [Fe@Fe12]16+ core, assisted by its bonding interactions with the peripheral tridentate [(Tp*)WS3]4- ligands which possess both S→Fe donation and spin-polarized Fe-W σ bonds. The ground-state electron spin is theoretically predicted to be S = 32/2 for the cluster. The existence of low oxidation-state (OS ∼ +1.23) iron in this compound may find interesting applications in magnetic storage, spintronics, redox chemistry, and cluster catalysis.
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Affiliation(s)
- Gan Xu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yun-Shu Cui
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xue-Lian Jiang
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Cong-Qiao Xu
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jun Li
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Xu-Dong Chen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
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Wen L, Lei J, Yang L, Kan Q, Wang P, Li J, Chen C, He L, Fu J, Ho CT, Huang Q, Cao Y. Metagenomics and untargeted metabolomics analyses to unravel the formation mechanism of characteristic metabolites in Cantonese soy sauce during different fermentation stages. Food Res Int 2024; 181:114116. [PMID: 38448100 DOI: 10.1016/j.foodres.2024.114116] [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: 11/23/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 03/08/2024]
Abstract
Cantonese soy sauce (CSS) is an important Chinese condiment due to its distinctive flavor. Microorganisms play a significant role in the flavor formation of CSS during fermentation. However, the correlation between microbes and flavor compounds as well as the potential fermentation mechanism remained poorly uncovered. Here we revealed the dynamic changes of microbial structure and characteristics metabolites as well as their correlation of CSS during the fermentation process. Metagenomics sequencing analysis showed that Tetragenococcus halophilus, Weissella confusa, Weissella paramesenteroides, Aspergillus oryzae, Lactiplantibacillus plantarum, Weissella cibaria were top six dominant species from day 0 to day 120. Sixty compounds were either positively or tentatively identified through untargeted metabolomics profile and they were 27 peptides, amino acids and derivatives, 8 carbohydrates and conjugates, 14 organic acids and derivatives, 5 amide compounds, 3 flavonoids and 3 nucleosides. Spearman correlation coefficient indicated that Tetragenococcus halophilus, Zygosaccharomyces rouxii, Pediococcus pentosaceus and Aspergillus oryzae were significantly related with the formation of taste amino acids and derivatives, peptides and functional substances. Additionally, the metabolisms of flavor amino acids including 13 main free amino acids were also profiled. These results provided valuable information for the production practice in the soy sauce industry.
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Affiliation(s)
- Linfeng Wen
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Jianping Lei
- WENS Foodstuff Group Co., Ltd, Yunfu 527400, China
| | - Lixin Yang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Qixin Kan
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Peipei Wang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Jun Li
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China; Guangdong Meiweixian Flavoring Foods Co., Ltd, Zhongshan 528437, China
| | - Cong Chen
- Guangdong Eco-engineering Polytechnic, Guangzhou 510520, China
| | - Liping He
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China; Instrumental Analysis & Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Jiangyan Fu
- Guangdong Meiweixian Flavoring Foods Co., Ltd, Zhongshan 528437, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA
| | - Qingrong Huang
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA.
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
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Chen Z, Ao C, Liu Y, Yang Y, Liu Y, Ming Q, Li C, Zhao H, Ban J, Li J. Manganese induces oxidative damage in the hippocampus by regulating the expression of oxidative stress-related genes via modulation of H3K18 acetylation. Environ Toxicol 2024; 39:2240-2253. [PMID: 38129942 DOI: 10.1002/tox.24102] [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: 05/27/2023] [Revised: 10/25/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023]
Abstract
Prolonged exposure to manganese (Mn) contributes to hippocampal Mn accumulation, which leads to neurodegenerative diseases called manganese poisoning. However, the underlying molecular mechanisms remain unclear and there are no ideal biomarkers. Oxidative stress is the essential mechanisms of Mn-related neurotoxicity. Furthermore, histone acetylation has been identified as being engaged in the onset and development of neurodegenerative diseases. Therefore, the work aims to understand the molecular mechanisms of oxidative damage in the hippocampus due to Mn exposure from the aspect of histone acetylation modification and to assess whether H3K18 acetylation (H3K18ac) modification level in peripheral blood reflect Mn-induced oxidative damage in the hippocampus. Here, we randomly divided 60 male rats into four groups and injected them intraperitoneally with sterile pure water and MnCl2 ⋅4H2 O (5, 10, and 15 mg/kg) for 16 weeks, 5 days a week, once a day. The data confirmed that Mn exposure down-regulated superoxide dismutase activity and glutathione level as well as up-regulated malondialdehyde level in the hippocampus and plasma, and that there was a positive correlation between these indicators in the hippocampus and plasma. Besides, we noted that Mn treatment upregulated H3K18ac modification levels in the hippocampus and peripheral blood and that H3K18ac modification levels correlated with oxidative stress. Further studies demonstrated that Mn treatment decreased the amounts of H3K18ac enrichment in the manganese superoxide dismutase (SOD2) and glutathione transferase omega 1 (GSTO1) gene promoter regions, contributing to oxidative damage in the hippocampus. In short, our results demonstrate that Mn induces oxidative damage in the hippocampus by inhibiting the expression of SOD2 and GSTO1 genes via modulation of H3K18ac. In assessing Mn-induced hippocampal neurotoxicity, oxidative damage in plasma may reflect hippocampal oxidative damage in Mn-exposed groups.
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Affiliation(s)
- Zhi Chen
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Chunyan Ao
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yan Liu
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yue Yang
- Guiyang Stomatological Hospital, Guiyang, Guizhou, China
| | - Ying Liu
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Qian Ming
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Changzhe Li
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Hua Zhao
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Jiaqi Ban
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
| | - Jun Li
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou, China
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Wang Q, Li Y, Yuan H, Peng L, Dai Z, Sun Y, Liu R, Li W, Li J, Zhu C. Hypoxia preconditioning of human amniotic mesenchymal stem cells enhances proliferation and migration and promotes their homing via the HGF/C-MET signaling axis to augment the repair of acute liver failure. Tissue Cell 2024; 87:102326. [PMID: 38442547 DOI: 10.1016/j.tice.2024.102326] [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: 10/22/2023] [Revised: 01/17/2024] [Accepted: 02/06/2024] [Indexed: 03/07/2024]
Abstract
BACKGROUND Transplantation of mesenchymal stem cells (MSCs) is a newly developed strategy for treating acute liver failure (ALF). Nonetheless, the low survival rate of MSCs after transplantation and their poor homing to damaged tissues limit the clinical application of MSCs. The research assessed whether hypoxic preconditioning (HPC) can improve the biological activity of human amniotic mesenchymal stem cells (hA-MSCs), promote their homing ability to the liver of mice with ALF, and influence liver tissue repair. METHODS Flow cytometry, CCK8, Transwell, and Western blotting assays were conducted to assess the effects of hypoxic preconditioning on the phenotype, proliferation, and migration of hA-MSCs and the changes in the c-Met and CXCR4 gene expression levels were studied. To evaluate the effects of the transplantation of hypoxic preconditioning of hA-MSCs on the homing and repair of D-galactosamine (D-GalN)/LPS-induced ALF, the mechanism was elucidated by adding c-Met, CXCR4-specific blockers (SU11274 and AMD3100). RESULTS After hypoxia pretreatment (1% oxygen volume fraction), hA-MSCs maintained the morphological characteristics of adherence and vortex colony growth and showed high CD44, CD90, and CD105 and low CD31, CD34, and CD45 expression levels. Hypoxic preconditioning of hA-MSCs significantly increased their proliferation and migration and highly expressed the c-Met and CXCR4 genes. In vivo and in vitro, this migration-promoting effect was suppressed by the c-Met specific blocker SU11274. In the acute liver failure mouse model, the HGF expression level was considerably elevated in the liver than that in the serum, lungs and kidneys. The transplantation of hypoxic preconditioned hA-MSCs introduced a remarkable improvement in the liver function and survival rate of mice with ALF and enhanced the anti-apoptosis ability of liver cells. The anti-apoptotic enhancing effect of hypoxic preconditioning was suppressed by the c-Met specific blocker SU11274. Hypoxic hA-MSCs administration was observed to have considerably increased the fluorescent cells in the liver than that recorded after administering normal oxygen-hA-MSCs. The number of hepatic fluorescent cells decreased remarkably after adding the c-Met inhibitor SU11274, compared to that recorded after hypoxic pretreatment, whereas the effect of c-Met inhibitor SU11274 on normal oxygen-hA-MSCs was not significant. CONCLUSIONS Hypoxic preconditioning depicted no impact on the morphology and phenotype features of the human amniotic mesenchymal stem cells, but it can promote their proliferation, migration, anti-apoptotic effect, and homing rate and improve the repair of acute liver failure, which might be mediated by the HGF/c-Met signaling axis.
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Affiliation(s)
- Qian Wang
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yuwen Li
- Department of Pediatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hui Yuan
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Linya Peng
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zixing Dai
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ye Sun
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Rui Liu
- Department of Infectious and Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Wenting Li
- Department of Infectious and Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Jun Li
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Chuanlong Zhu
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Department of Infectious and Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Hainan, China.
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Zhou YF, Wang J, Wang XL, Song SS, Bai Y, Li JL, Luo JY, Jin QQ, Cai WC, Yuan KM, Li J. A prediction model of elderly hip fracture mortality including preoperative red cell distribution width constructed based on the random survival forest (RSF) and Cox risk ratio regression. Osteoporos Int 2024; 35:613-623. [PMID: 38062161 DOI: 10.1007/s00198-023-06988-0] [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: 06/16/2023] [Accepted: 11/20/2023] [Indexed: 03/22/2024]
Abstract
An independent correlation between pre-RDW and 1-year mortality after surgery in elderly hip fracture can be used to predict mortality in elderly hip fracture patients and has predictive significance in anemia patients. With further research, a treatment algorithm can be developed to potentially identify patients at high risk of preoperative mortality. INTRODUCTION Red blood cell distribution width (RDW) is an independent predictor of various disease states in elderly individuals, but its association with the prognosis of elderly hip fracture patients is controversial. This study aimed to evaluate the prognostic value of RDW in such patients, construct a prediction model containing RDW using random survival forest (RSF) and Cox regression analysis, and compare RDW in patients with and without anemia. METHODS We retrospectively analyzed the data of elderly patients who underwent hip fracture surgery, selected the best variables using RSF, stratified the independent variables by Cox regression analysis, constructed a 1-year mortality prediction model of elderly hip fracture with RDW, and conducted internal validation and external validation. RESULTS Two thousand one hundred six patients were included in this study. The RSF algorithm selects 12 important influencing factors, and Cox regression analysis showed that eight variables including preoperative RDW (pre-RDW) were independent risk factors for death within 1-year after hip fracture surgery in elderly patients. Stratified analysis showed that pre-RDW was still independently associated with 1-year mortality in the non-anemia group and not in the anemia group. The nomogram prediction model had high differentiation and fit, and the prediction model constructed by the total cohort of patients was also used for validation of patients in the anemia patients and obtained good clinical benefits. CONCLUSION An independent correlation between pre-RDW and 1-year mortality after surgery in elderly hip fracture can be used to predict mortality in elderly hip fracture patients and has predictive significance in anemia patients.
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Affiliation(s)
- Ying-Feng Zhou
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China
| | - Jiao Wang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China
| | - Xin-Lin Wang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China
| | - Shu-Shu Song
- Department of Anesthesiology, Wenzhou Central Hospital, Zhejiang, China
| | - Yue Bai
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China
| | - Jian-Lin Li
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China
| | - Jing-Yu Luo
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China
| | - Qi-Qi Jin
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China
| | - Wei-Cha Cai
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China
| | - Kai-Ming Yuan
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China.
| | - Jun Li
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Zhejiang, China.
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Li J, Lian P, Huang X, Liu B, Chen S, Lu L. DIFFERENCES IN THE PROGRESSION BETWEEN MYOPIC MACULOSCHISIS EYES WITH AND WITHOUT MACULAR DETACHMENT IN THE NATURAL COURSE OF THE DISEASE: A Retrospective Longitudinal Study Based on the New Myopic Traction Maculopathy Staging System. Retina 2024; 44:601-609. [PMID: 38064675 DOI: 10.1097/iae.0000000000004017] [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] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
PURPOSE To investigate the pace of visual acuity loss in myopic maculoschisis eyes with or without macular detachment and identify associated risk factors. METHODS One thousand three hundred and thirty-four eyes of 991 patients with high myopia were reviewed. A new myopic traction maculopathy staging system classified four retinal stages and three foveal stages. To the myopic traction maculopathy eyes with normal fovea, maculoschisis with and without macular detachment was defined as Stage 3a and Stages 1a, 2a respectively. RESULTS One hundred and ten (8.25%) eyes with maculoschisis were included, with a follow-up of 24.00 ± 17.47 months. Of them, 84 (76.36%) were Stages 1a, 2a, and 26 (23.64%) were Stage 3a. The visual acuity loss per year during the follow-up period was similar between eyes with Stages 1a, 2a and Stage 3a (3.13 ± 12.21 vs. 3.41 ± 18.42 letters, P = 0.930). Multivariate analyses revealed that vitreomacular interface factors were significantly associated with visual acuity loss during the follow-up, no matter in Stages 1a, 2a or Stage 3a ( P = 0.039 and P = 0.038, respectively). In the Stages 1a, 2a group, the percentage of eyes that lost at least 10 letters at the final visit compared with the baseline visual acuity was higher in eyes with vitreomacular interface factors than in those without vitreomacular interface factors (13 eyes, 50.00% vs. 14 eyes, 24.14%, P = 0.019). CONCLUSION No differences were found in visual acuity loss pace between Stages 1a, 2a and Stage 3a. Surgical intervention or at least more intensive follow-up should be considered for Stages 1a, 2a eyes with vitreomacular interface factors, to promote a more favorable visual outcome.
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Affiliation(s)
- Jun Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
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Yang Y, Dong Y, Wu J, Li J, Wang Z, Ma Y. Primary Angiosarcoma of the Breast Diagnosed on Core Needle Biopsy: A Diagnostic Challenge. Int J Surg Pathol 2024; 32:368-373. [PMID: 37231624 DOI: 10.1177/10668969231176011] [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: 05/27/2023]
Abstract
Primary angiosarcoma of the breast is very rare and difficult to pathologically diagnose especially on core needle biopsy. Only 11 cases of breast primary angiosarcoma diagnosed on core needle biopsy have been reported in English literature of last 5 years. We reported a case of primary angiosarcoma of the breast diagnosed on core needle biopsy and summarized the useful morphological clues in literature which prompted the diagnosis of angiosarcoma. A 50-year-old woman presented with a palpable mass in her left breast for a year. She never received breast surgery or radiotherapy before. Microscopically, the core needle biopsy specimen displayed interanastomosing vascular spaces that dissected through the mammary stroma and adipose tissue. The vascular channels were mostly lined by a single layer of endothelial cells with a mild degree of nuclear atypia, whereas focally, the endothelia were multilayered, with tufting and formation of glomerulus-like structures. CD31, CD34, and ERG immunochemical stain highlighted the endothelial cells lining on the vascular spaces. The Ki67 index was about 10%, and MYC was negative. Primary angiosarcomas have significant overlaps of morphological features with benign and borderline vascular lesions. Anastomosing vascular spaces, cytologic atypia, endothelial mitotic activity, infiltration of glandular parenchyma, elevated Ki-67, and high cellularity are all useful clues to diagnose angiosarcomas. Among them, anastomosing vascular spaces with infiltrated growth pattern especially invasion into the breast intralobular stroma and adipose tissue was the most common character of angiosarcomas which alert the possibility of malignancy in core needle biopsy. However, an accurate diagnosis demands integration of various histological clues and multidisciplinary discussion.
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Affiliation(s)
- Ying Yang
- Department of Pathology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuan Dong
- Department of Breast Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jian'e Wu
- Department of Pathology, Anning First People's Hospital, Kunming, China
| | - Jun Li
- Department of Radiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhiyuan Wang
- Department of Pathology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yun Ma
- Department of Breast Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
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He H, Han Y, Wan Q, Yue Y, Li S, Su B, Li J. Curcumin inhibits propofol-induced autophagy of MN9D cells via Akt/mTOR/p70S6K signaling pathway. Cell Biol Int 2024; 48:461-472. [PMID: 38196274 DOI: 10.1002/cbin.12117] [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: 06/13/2023] [Revised: 11/20/2023] [Accepted: 12/13/2023] [Indexed: 01/11/2024]
Abstract
The rapid rise in propofol dependency and abuse has highlighted limited resources for addressing substance abuse-related cognitive impairment, prompting the development of novel therapies. Dysregulated autophagy flow accelerates neuronal cell death, and interventions countering this dysregulation offer an appealing strategy for neuronal protection. Curcumin, a potent natural polyphenol derived from turmeric rhizomes, is renowned for its robust antineurotoxic properties and enhanced cognitive function. Utilizing CCK-8 and Ki67 fluorescent staining, our study revealed that curcumin treatment increased cell viability and proliferative potential in MN9D cells exposed to propofol-induced neurotoxicity. Furthermore, enzyme-linked immunosorbent assay and western blot analysis demonstrated the partial restoration of dopamine synthesis, secretion levels, and TH expression in damaged MN9D cells treated with curcumin. Scanning electrode microscope images displayed reduced autolysosomes and phagosomes in curcumin-treated cells compared to the propofol group. Immunoblotting revealed that curcumin mitigated the degradation of LC3I to LC3II and p62 induced by propofol stimulation, with green fluorescence expression of LC3 postcurcumin treatment resembling that following autophagy inhibitor HCQ treatment, indicating that modulating autophagy flow can alleviate propofol's toxic effects. Moreover, curcumin treatment upregulated the Akt/mTOR/p70S6K signaling pathway, suggesting that curcumin potentially curtails autophagy dysregulation in nerve cells by activating Akt/mTOR/p70S6K. In conclusion, our findings suggest that curcumin can ameliorate propofol abuse-induced neurotoxicity, partially through autophagy regulation and Akt/mTOR/p70S6K signaling activation.
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Affiliation(s)
- Hongxia He
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Development and Regeneration Key Lab of Sichuan Province, Department of Histology and Embryology, Department of Pathology, Chengdu Medical College, Chengdu, Sichuan, China
- Mianyang Key Laboratory of Anesthesia and Neuro-regulation, Department of Anesthesiology, Mianyang Central Hospital, Mianyang, Sichuan, China
| | - Yuping Han
- Development and Regeneration Key Lab of Sichuan Province, Department of Histology and Embryology, Department of Pathology, Chengdu Medical College, Chengdu, Sichuan, China
| | - Qiuyan Wan
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Development and Regeneration Key Lab of Sichuan Province, Department of Histology and Embryology, Department of Pathology, Chengdu Medical College, Chengdu, Sichuan, China
- Mianyang Key Laboratory of Anesthesia and Neuro-regulation, Department of Anesthesiology, Mianyang Central Hospital, Mianyang, Sichuan, China
| | - Yao Yue
- Development and Regeneration Key Lab of Sichuan Province, Department of Histology and Embryology, Department of Pathology, Chengdu Medical College, Chengdu, Sichuan, China
| | - Shurong Li
- Development and Regeneration Key Lab of Sichuan Province, Department of Histology and Embryology, Department of Pathology, Chengdu Medical College, Chengdu, Sichuan, China
| | - Bingyin Su
- Development and Regeneration Key Lab of Sichuan Province, Department of Histology and Embryology, Department of Pathology, Chengdu Medical College, Chengdu, Sichuan, China
| | - Jun Li
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Mianyang Key Laboratory of Anesthesia and Neuro-regulation, Department of Anesthesiology, Mianyang Central Hospital, Mianyang, Sichuan, China
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Yu A, Gao H, Ma Y, Li J, Zhang H. Feasibility study of the multishot gradient-echo planar imaging sequence in non-enhanced and free-breathing whole-heart magnetic resonance coronary angiography. Clin Radiol 2024; 79:e539-e545. [PMID: 38160106 DOI: 10.1016/j.crad.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 11/22/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
AIM To investigate the feasibility of non-enhanced and free-breathing whole-heart magnetic resonance coronary angiography (MRCA) using multishot gradient-echo planar imaging (MSG-EPI). MATERIALS AND METHODS In total, 29 healthy volunteers were recruited for free-breathing whole-heart MRCA acquisition using the MSG-EPI sequence and fast gradient echo (GRE) sequence. After the examination, the actual scanning times, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) of the left main (LM) coronary artery, subjective quality scores for each segment, and evaluable length of the coronary artery were recorded and statistically analysed. RESULTS There was no significant difference between the SNRLM of the MSG-EPI sequence and fast GRE sequence (p=0.130), but the CNRLM of the MSG-EPI sequence was higher (p=0.001). The subjective quality score of the mid- and distal left anterior descending branch as well as the distal circumflex branch of the coronary artery in the MSG-EPI sequence was higher than that in the fast GRE sequence (p=0.003, 0.001, and 0.003, respectively). The evaluable length of the left anterior descending branch and the circumflex branch was better using the MSG-EPI sequence than that of the fast GRE sequence (p=0.015 and < 0.001, respectively). Moreover, the scanning time of the MSG-EPI sequence was 54.5% less than that of the fast GRE sequence (p<0.001). CONCLUSION The MSG-EPI sequence improves the subjective and objective image quality of MRCA as well as reduces the scanning time.
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Affiliation(s)
- A Yu
- Department of Radiology, Tianjin Chest Hospital, Tianjin, China
| | - H Gao
- Department of Radiology, Tianjin Chest Hospital, Tianjin, China
| | - Y Ma
- Department of Radiology, Tianjin Chest Hospital, Tianjin, China
| | - J Li
- Department of Radiology, Tianjin Chest Hospital, Tianjin, China
| | - H Zhang
- Department of Radiology, Tianjin Chest Hospital, Tianjin, China.
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Lou X, Wu Y, Huang Z, Zhang W, Xiao X, Wu J, Li J, Fang Z. Biofilm formation and associated gene expression changes in Cronobacter from cereal related samples in China. Food Microbiol 2024; 118:104409. [PMID: 38049271 DOI: 10.1016/j.fm.2023.104409] [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: 09/08/2023] [Revised: 10/09/2023] [Accepted: 10/23/2023] [Indexed: 12/06/2023]
Abstract
Cronobacter is an important foodborne pathogen that can cause severe neonatal meningitis, necrotizing enterocolitis, and bacteremia. Currently, there is limited knowledge of biofilm formation in Cronobacter. In the present study, biofilm formation ability and associated gene expression changes in Cronobacter from cereal related samples was carried out systematically. Our results from 307 Cronobacter isolates analyzed for 48 h showed strong biofilm-forming ability in 14 strains (4.6%), moderate in 47 strains (15.3%), weak in 142 strains (46.2%), and no such ability in the remaining 104 strains (33.9%). Further studies on five strains with strong biofilm-forming ability showed that maximum biofilm formation in Cronobacter occurred after 24 h of cultivation, reaching a peak around 48 h-72 h, reducing gradually thereafter. Kyoto encyclopedia of genes and genomes (KEGG) analysis revealed that differentially expressed genes (DEGs) involved in flagellar assembly, oxidative phosphorylation, ribosome, photosynthesis, O-Antigen nucleotide sugar biosynthesis, citrate cycle (tricarboxylic acid cycle, TCA) and bacterial chemotaxis were enriched in biofilm forming cells. The genes involved these enrichment pathways were mostly downregulated when compared to planktonic cells. Several transcriptional regulator genes such as csrA and bolA, and the cell surface composition regulator gene glgS were significantly upregulated. 12 of 13 (92.3%) selected genes was found to be in agreement with the RNA-Seq of planktonic and biofilm cells by Quantitative real-time PCR analysis, thus increasing confidence in our data. Our research lays a sound theoretical basis for further studies on mechanisms regulating biofilm formation and provides a foundation for development of new food safety measures, clinical disease prevention and control.
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Affiliation(s)
- Xiuqin Lou
- Hangzhou Center for Disease Control and Prevention, Hangzhou, 310021, China
| | - Yue Wu
- Hangzhou Center for Disease Control and Prevention, Hangzhou, 310021, China
| | - Zhenzhou Huang
- Hangzhou Center for Disease Control and Prevention, Hangzhou, 310021, China
| | - Wei Zhang
- Hangzhou Center for Disease Control and Prevention, Hangzhou, 310021, China
| | - Xiao Xiao
- Hangzhou Center for Disease Control and Prevention, Hangzhou, 310021, China
| | - Jun Wu
- Lin'an Center for Disease Control and Prevention, Hangzhou, 311399, China
| | - Jun Li
- Hangzhou Center for Disease Control and Prevention, Hangzhou, 310021, China.
| | - Zhiguo Fang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China.
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Li J, Yang Z, Shi C, Wu X, Zhou L, Liang Y, Li Q, Ju J. Semi-synthesis and structure-activity relationship study yield antibacterial vicenistatin derivatives with low cytotoxicity. J Antibiot (Tokyo) 2024; 77:221-227. [PMID: 38228780 DOI: 10.1038/s41429-023-00701-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/18/2024]
Abstract
Vicenistatin (1) is a 20-membered polyketide macrocyclic antibiotic with potent antimicrobial and cytotoxic activities. In this study, to further explore the potential of 1 as candidates of antibacterial drug development, 4'-N-demethyl vicenistatin (2), a secondary metabolite obtained from the ∆vicG mutant strain of Monodonata labio-associated Streptomyces parvus SCSIO Mla-L010, was utilized as a starting material for modifications of 4'-amino group of vicenistatin. Six new vicenistatin derivatives (3-8) were semi-synthesized through a concise route of amino modification with various aliphatic and aromatic aldehydes. Our study reveals that the bioactivity of vicenistatin is closely related to amino modification in sugar moiety, which results from the length of alkyl side chain as well as the presence of electron withdrawing/denoting group on the benzene ring. Importantly, compounds 4 with a butyl group and 8 with a 3,5-dihydroxyl-benzyl group at 4'-amino group, respectively, exhibited good antimicrobial activities, with MIC values spanning 0.5-4 μg ml-1 to Gram-positive pathogens, including methicillin-resistant Staphylococcus aureus, methicillin-resistant Staphylococcus epidermidis, Micrococcus luteus and Bacillus subtilis, with low cytotoxicity. This research promotes the further exploration of structure-activity relationships of vicenistatin and provides new vicenistatin derivatives for development of future anti-infectious agents with reduced cytotoxicity.
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Affiliation(s)
- Jun Li
- College of Light Industry and Food, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Chinese Academy of Sceinces, South China Sea Institute of Oceanology, Guangzhou, 510301, China
| | - Zhenye Yang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Chinese Academy of Sceinces, South China Sea Institute of Oceanology, Guangzhou, 510301, China
- College of Oceanology, University of Chinese Academy of Sciences, Qingdao, 266400, China
| | - Chuanling Shi
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Xiaoyun Wu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Le Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Chinese Academy of Sceinces, South China Sea Institute of Oceanology, Guangzhou, 510301, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
| | - Yongqian Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Qinglian Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Chinese Academy of Sceinces, South China Sea Institute of Oceanology, Guangzhou, 510301, China.
- College of Oceanology, University of Chinese Academy of Sciences, Qingdao, 266400, China.
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.
| | - Jianhua Ju
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, Chinese Academy of Sceinces, South China Sea Institute of Oceanology, Guangzhou, 510301, China.
- College of Oceanology, University of Chinese Academy of Sciences, Qingdao, 266400, China.
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.
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Machireddy M, Oberman AG, DeBiase L, Stephens M, Li J, Littlepage LE, Niebur GL. Controlled mechanical loading affects the osteocyte transcriptome in porcine trabecular bone in situ. Bone 2024; 181:117028. [PMID: 38309412 PMCID: PMC10923013 DOI: 10.1016/j.bone.2024.117028] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/09/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
INTRODUCTION Osteocytes modulate bone adaptation in response to mechanical stimuli imparted by the deforming bone tissue in which they are encased by communicating with osteoclasts and osteoblasts as well as other osteocytes in the lacuna-canalicular network through secreted cytokines and chemokines. Understanding the transcriptional response of osteocytes to mechanical stimulation in situ could identify new targets to inhibit bone loss or enhance bone formation in the presence of diseases like osteoporosis or metastatic cancer. We compared the mechanically regulated transcriptional response of osteocytes in trabecular bone following one or three days of controlled mechanical loading. METHODS Porcine trabecular bone explants were cultured in a bioreactor for 48 h and subsequently loaded twice a day for one day or 3 days. RNA was isolated and sequenced, and the Tuxedo suite was used to identify differentially expressed genes and pathway analysis was conducted using Ingenuity Pathway Analysis (IPA). RESULTS There were about 4000 differentially expressed genes following in situ culture relative to fresh bone. One hundred six genes were differentially expressed between the loaded and non-loaded groups following one day of loading compared to 913 genes after 3 d of loading. Only 45 of these were coincident between the two time points, indicating an evolving transcriptome. Clustering and principal component analysis indicated differences between the loaded and non-loaded groups after 3 d of loading. DISCUSSION With sustained loading, there was a nine-fold increase in the number of differentially expressed genes, suggesting that osteocytes respond to loading through sequential activation of downstream genes in the same pathways. The differentially expressed genes were related to osteoarthritis, osteocyte, and chondrocyte signaling pathways. We noted that NFkB and TNF signaling are affected by early loading and this may drive downstream effects on the mechanobiological response. Moreover, these genes may regulate catabolic effects of mechanical disuse through their actions on pre-osteoclasts in the bone marrow niche.
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Affiliation(s)
- Meghana Machireddy
- Tissue Mechanics Laboratory, Bioengineering Graduate Program, University of Notre Dame, IN 46556, USA
| | - Alyssa G Oberman
- Tissue Mechanics Laboratory, Bioengineering Graduate Program, University of Notre Dame, IN 46556, USA
| | - Lucas DeBiase
- Dept. of Aerospace and Mechanical Engineering, University of Notre Dame, IN 46556, USA
| | - Melissa Stephens
- Genomics and Bioinformatics Core Facility, University of Notre Dame, IN 46556, USA
| | - Jun Li
- Dept. of Applied Mathematics, Computations, and Statistics, University of Notre Dame, IN 46556, USA
| | - Laurie E Littlepage
- Dept. of Chemistry and Biochemistry, University of Notre Dame, IN 46556, USA; Harper Cancer Research Institute, University of Notre Dame, IN 46556, USA
| | - Glen L Niebur
- Tissue Mechanics Laboratory, Bioengineering Graduate Program, University of Notre Dame, IN 46556, USA; Harper Cancer Research Institute, University of Notre Dame, IN 46556, USA; Dept. of Aerospace and Mechanical Engineering, University of Notre Dame, IN 46556, USA.
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Jiang Z, Li S, Wang L, Yu F, Zeng Y, Li H, Li J, Zhang Z, Zuo J. A comparison of invasive arterial blood pressure measurement with oscillometric non-invasive blood pressure measurement in patients with sepsis. J Anesth 2024; 38:222-231. [PMID: 38305914 DOI: 10.1007/s00540-023-03304-2] [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: 09/30/2022] [Accepted: 12/25/2023] [Indexed: 02/03/2024]
Abstract
PURPOSE This study aimed to compare non-invasive oscillometric blood pressure (NIBP) measurement with invasive arterial blood pressure (IBP) measurement in patients with sepsis. METHODS We conducted a retrospective study to evaluate the agreement between IBP and NIBP using the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. Paired blood pressure measurements of mean arterial pressure (MAP), systolic blood pressure (SBP), and diastolic blood pressure (DBP) were compared using Bland-Altman analysis and paired Student's t test. We also focus on the effect of norepinephrine (NE) on the agreement between the two methods and the association between blood pressure and mortality during intensive care unit (ICU) stay. RESULTS A total of 96,673 paired blood pressure measurements from 6060 unique patients were analyzed in the study. In Bland-Altman analysis, the bias (± SD, 95% limits of agreement) was 6.21 mmHg (± 12.05 mmHg, - 17.41 to 29.83 mmHg) for MAP, 0.39 mmHg (± 19.25 mmHg, - 37.34 to 38.12 mmHg) for SBP, and 0.80 mmHg (± 12.92 mmHg, - 24.52 to 26.12 mmHg) for DBP between the two techniques. Similarly, large limits of agreement were shown in different groups of NE doses. NE doses significantly affected the agreement between IBP and NIBP. SBP between the two methods gave an inconsistent assessment of patients' risk of ICU mortality. CONCLUSION IBP and NIBP were not interchangeable in septic patients. Clinicians should be aware that non-invasive MAP was clinically and significantly underestimated invasive MAP.
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Affiliation(s)
- Ziqing Jiang
- Candidate of Master's Degree, The First Clinical Medical College, Guangzhou University of Chinese Medicine, Baiyun District, Guangzhou, Guangdong Province, China
| | - Shaoying Li
- Candidate of Master's Degree, The First Clinical Medical College, Guangzhou University of Chinese Medicine, Baiyun District, Guangzhou, Guangdong Province, China
| | - Lin Wang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou, Guangdong Province, China
| | - Feng Yu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou, Guangdong Province, China
| | - Yanping Zeng
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou, Guangdong Province, China
| | - Hongbo Li
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou, Guangdong Province, China
| | - Jun Li
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou, Guangdong Province, China
| | - Zhanfeng Zhang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou, Guangdong Province, China
| | - Junling Zuo
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou, Guangdong Province, China.
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Shan CQ, Liu QC, Li J, Liu E, Li C, Yu HM, Jiang GT, Liu Y, Tian J. Expression of chicken epidermal growth factor (cEGF) in Escherichia coli regulates the microflora structure of the duodenum to improve growth performance and intestinal morphogenesis in broilers. Br Poult Sci 2024; 65:179-190. [PMID: 38372614 DOI: 10.1080/00071668.2024.2308274] [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: 09/15/2023] [Accepted: 12/22/2023] [Indexed: 02/20/2024]
Abstract
1. A study used gene synthesis to obtain the functional domains of chicken epidermal growth factor (cEGF) and examined their impact on broiler growth performance, small intestinal morphology, digestive enzyme activities in the intestinal contents and the structure of duodenal microflora.2. The pET-32a-cEGF recombinant expression vector was constructed. The specific band at 26 KDa was shown by SDS-PAGE analysis and WB results. The purified protein content was shown to be 1687 μg/ml by assay.3. A total of 180 healthy, one-day-old Arbor Acres male, white-feathered broilers were randomly divided into three dietary treatment groups (six replicate pens, 10 birds per replicate): A control diet (ND); cEGF diet (cEGF), control supplemented with 250 mg/kg cEGF and the control diet (CD) supplemented with 250 mg/kg chlortetracycline.4. The results showed that feeding the cEGF and CD diet reduced FCR of broilers aged 1-21 d, average daily feed intake (ADFI) at 22-42 d, and the FCR in the whole period (1-42 d; p < 0.05). Compared with the ND group, the cEGF diet increased duodenal α-amylase and alkaline phosphatase activities in the 1-21 d, duodenal lipase, alkaline phosphatase, and ileal alkaline phosphatase activities in the post-period and increased villus height in the duodenum and ileum (p < 0.05). In addition, the ACE and Chao1 index for the birds fed cEGF were higher than the ND group (p < 0.05). At the phyla level, Firmicutes and Proteobacteria were dominant in all groups. At the genus level, the dominant genus was Lactobacillus. The LEfSe analysis showed that the cEGF group was enriched by 11 species including Brevibacillus, Eisenbergiella, Cloacibacterium, Butyricoccus spp.5. The addition of 250 mg/kg cEGF to the diet can increase growth performance by improving intestinal development and digestive enzyme activity, which may be related to the duodenal intestinal microflora. Therefore, cEGF is an effective alternative to antibiotics in broiler farming.
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Affiliation(s)
- C Q Shan
- School of Biological Engineering, Dalian Polytechnic University, Dalian, China
| | - Q C Liu
- Dalian Sanyi Bioengineering Research Institute, Dalian Pharmaceutical Sanyi Drugs Co Ltd, Dalian, Liaoning, China
| | - J Li
- Dalian Sanyi Bioengineering Research Institute, Dalian Pharmaceutical Sanyi Drugs Co Ltd, Dalian, Liaoning, China
| | - E Liu
- Research Quality Control Centre, Jiangsu Sanyi Bioengineering Co Ltd, Xuzhou, Jiangsu, China
| | - C Li
- Research Quality Control Centre, Jiangsu Sanyi Bioengineering Co Ltd, Xuzhou, Jiangsu, China
| | - H M Yu
- Dalian Sanyi Bioengineering Research Institute, Dalian Pharmaceutical Sanyi Drugs Co Ltd, Dalian, Liaoning, China
| | - G T Jiang
- Dalian Sanyi Bioengineering Research Institute, Dalian Pharmaceutical Sanyi Drugs Co Ltd, Dalian, Liaoning, China
| | - Y Liu
- Dalian Sanyi Bioengineering Research Institute, Dalian Pharmaceutical Sanyi Drugs Co Ltd, Dalian, Liaoning, China
| | - J Tian
- School of Biological Engineering, Dalian Polytechnic University, Dalian, China
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Li J. Public Reporting and Consumer Demand in the Home Health Sector. Med Care Res Rev 2024; 81:122-132. [PMID: 38235538 PMCID: PMC10939869 DOI: 10.1177/10775587231221852] [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] [Indexed: 01/19/2024]
Abstract
Health care report cards improve information and are a crucial part of health care reform of the federal government of the United States. I exploit a natural experiment in the home health sector to assess whether a higher rating under the star ratings program affects patient choice. Higher rated agencies increased their market share by 1.4% or 0.25 (95% confidence interval: [-0.63, 1.12]) percentage points, a practically and statistically insignificant amount. I find no evidence of heterogeneous effects across the rating distribution or over time. I also find precise null effects among consumers expected to be more responsive, including community-entry patients and patients in competitive markets with more options and star types. Agencies may have modestly impeded consumer choice by engaging in some patient selection behaviors, although the evidence is only weakly suggestive. The star ratings are unlikely to improve home health quality despite continued policymaker interest.
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Affiliation(s)
- Jun Li
- Syracuse University, Syracuse, NY, USA
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Bu F, Min JW, Razzaque MA, El Hamamy A, Patrizz A, Qi L, Urayama A, Li J. Activation of cerebral Ras-related C3 botulinum toxin substrate (Rac) 1 promotes post-ischemic stroke functional recovery in aged mice. Neural Regen Res 2024; 19:881-886. [PMID: 37843224 PMCID: PMC10664129 DOI: 10.4103/1673-5374.382256] [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: 03/04/2021] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 10/17/2023] Open
Abstract
Brain functional impairment after stroke is common; however, the molecular mechanisms of post-stroke recovery remain unclear. It is well-recognized that age is the most important independent predictor of poor outcomes after stroke as older patients show poorer functional outcomes following stroke. Mounting evidence suggests that axonal regeneration and angiogenesis, the major forms of brain plasticity responsible for post-stroke recovery, diminished with advanced age. Previous studies suggest that Ras-related C3 botulinum toxin substrate (Rac) 1 enhances stroke recovery as activation of Rac1 improved behavior recovery in a young mice stroke model. Here, we investigated the role of Rac1 signaling in long-term functional recovery and brain plasticity in an aged (male, 18 to 22 months old C57BL/6J) brain after ischemic stroke. We found that as mice aged, Rac1 expression declined in the brain. Delayed overexpression of Rac1, using lentivirus encoding Rac1 injected day 1 after ischemic stroke, promoted cognitive (assessed using novel object recognition test) and sensorimotor (assessed using adhesive removal tests) recovery on days 14-28. This was accompanied by the increase of neurite and proliferative endothelial cells in the peri-infarct zone assessed by immunostaining. In a reverse approach, pharmacological inhibition of Rac1 by intraperitoneal injection of Rac1 inhibitor NSC23766 for 14 successive days after ischemic stroke worsened the outcome with the reduction of neurite and proliferative endothelial cells. Furthermore, Rac1 inhibition reduced the activation of p21-activated kinase 1, the protein level of brain-derived neurotrophic factor, and increased the protein level of glial fibrillary acidic protein in the ischemic brain on day 28 after stroke. Our work provided insight into the mechanisms behind the diminished plasticity after cerebral ischemia in aged brains and identified Rac1 as a potential therapeutic target for improving functional recovery in the older adults after stroke.
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Affiliation(s)
- Fan Bu
- Department of Neurology, University of Texas Health Science Center, Houston, TX, USA
- Department of Neurology & Psychology, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, China
| | - Jia-Wei Min
- Department of Neurology, University of Texas Health Science Center, Houston, TX, USA
| | - Md Abdur Razzaque
- Department of Neurology, University of Texas Health Science Center, Houston, TX, USA
| | - Ahmad El Hamamy
- Department of Neurology, University of Texas Health Science Center, Houston, TX, USA
| | - Anthony Patrizz
- Department of Neurology, University of Texas Health Science Center, Houston, TX, USA
| | - Li Qi
- Department of Neurology, University of Texas Health Science Center, Houston, TX, USA
| | - Akihiko Urayama
- Department of Neurology, University of Texas Health Science Center, Houston, TX, USA
| | - Jun Li
- Department of Neurology, University of Texas Health Science Center, Houston, TX, USA
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Li J, Yang Y, Xia Y, Luo S, Lin J, Xiao Y, Li X, Huang G, Yang L, Xie Z, Zhou Z. Effect of SIRT1 gene single-nucleotide polymorphisms on susceptibility to type 1 diabetes in a Han Chinese population. J Endocrinol Invest 2024; 47:819-826. [PMID: 37695462 DOI: 10.1007/s40618-023-02190-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 08/25/2023] [Indexed: 09/12/2023]
Abstract
AIMS SIRT1 deficiency has been associated with diabetes, and a variant of the SIRT1 gene has been found to be involved in human autoimmune diabetes; however, it is unclear whether this genetic variation exists in Han Chinese with type 1 diabetes (T1D) and whether it contributes to development of T1D. Therefore, we aimed to explore the association of the SIRT1 gene single-nucleotide polymorphisms (SNPs) rs10997866 and rs3818292 in a Han Chinese population with T1D. METHODS This study recruited 2653 unrelated Han Chinese individuals, of whom 1289 had T1D and 1364 were healthy controls. Allelic and genotypic distributions of SIRT1 polymorphisms (rs10997866 and rs3818292) were determined by MassARRAY. Basic characteristics, genotype and allele frequencies of selected SNPs were compared between the T1D patients and healthy controls. Further genotype-phenotype association analysis of the SNPs was performed on the T1D patients divided into three groups according to genotype. Statistical analyses included the chi-square test, Mann‒Whitney U test, Kruskal‒Wallis H test and logistic regression. RESULTS The allelic (G vs. A) and genotypic (GA vs. AA) distributions of SIRT1 rs10997866 were significantly different in T1D patients and healthy controls (P = 0.039, P = 0.027), and rs10997866 was associated with T1D susceptibility under dominant, overdominant and additive models (P = 0.026, P = 0.030 and P = 0.027, respectively). Moreover, genotype-phenotype association analysis showed the GG genotype of rs10997866 and the GG genotype of rs3818292 to be associated with higher titers of IA-2A (P = 0.013 and P = 0.038, respectively). CONCLUSION SIRT1 rs10997866 is significantly associated with T1D susceptibility, with the minor allele G conferring a higher risk of T1D. Moreover, SIRT1 gene rs10997866 and rs3818292 correlate with the titer of IA-2A in Han Chinese individuals with T1D.
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Affiliation(s)
- J Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Y Yang
- Department of Laboratory Medicine, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Y Xia
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - S Luo
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - J Lin
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Y Xiao
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - X Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - G Huang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - L Yang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Z Xie
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
| | - Z Zhou
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes, Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
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He J, Yang M, Song C, Zhang R, Yuan S, Li J, Dou K. Lipoprotein(a) is associated with recurrent cardiovascular events in patients with coronary artery disease and prediabetes or diabetes. J Endocrinol Invest 2024; 47:883-894. [PMID: 37777699 DOI: 10.1007/s40618-023-02203-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/17/2023] [Indexed: 10/02/2023]
Abstract
PURPOSE Elevated lipoprotein(a) [Lp(a)] and diabetes mellitus (DM) are both associated with adverse events in high-risk patients with established coronary artery disease (CAD). Currently, the association between Lp(a) levels and recurrent cardiovascular (CV) events (CVEs) remained undetermined in patients with different glucose status. Therefore, this study aimed to investigate the prognostic significance of Lp(a) levels for recurrent CVEs in high-risk CAD patients who suffered from first CVEs according to different glycemic metabolism. METHODS We recruited 5257 consecutive patients with prior CVEs and followed up for recurrent CVEs, including CV death, non-fatal myocardial infarction (MI), and non-fatal stroke. Patients were assigned to low, medium, and high groups according to Lp(a) levels and further stratified by glucose status. RESULTS During a median 37-month follow-up, 225 (4.28%) recurrent CVEs occurred. High Lp(a) was independently associated with recurrent CVEs [adjusted Hazard Ratio (HR), 1.57; 95% confidence interval (CI) 1.12-2.19; P = 0.008]. When participants were classified according to Lp(a) levels and glycemic status, high Lp(a) levels were associated with an increased risk of recurrent CVEs in pre-DM (adjusted HR, 2.96; 95% CI 1.24-7.05; P = 0.014). Meanwhile, medium and high Lp(a) levels were both associated with an increased risk for recurrent CVEs in DM (adjusted HR, 3.09; 95% CI 1.30-7.34; P = 0.010 and adjusted HR, 3.13, 95% CI 1.30-7.53; P = 0.011, respectively). CONCLUSIONS This study demonstrated that elevated Lp(a) levels were associated with an increased recurrent CVE risk in patients with CAD, particularly among those with pre-DM and DM, indicating that Lp(a) may provide incremental value in risk stratification in this population.
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Affiliation(s)
- J He
- State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167A Beilishi Road, Xi Cheng District, Beijing, 100037, China
- Department of Cardiology, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Yang
- Department of Cardiology, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - C Song
- State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167A Beilishi Road, Xi Cheng District, Beijing, 100037, China
- Department of Cardiology, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - R Zhang
- State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167A Beilishi Road, Xi Cheng District, Beijing, 100037, China
- Department of Cardiology, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing, China
| | - S Yuan
- State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167A Beilishi Road, Xi Cheng District, Beijing, 100037, China
- Department of Cardiology, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Li
- State Key Laboratory of Cardiovascular Disease, Beijing, China.
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167A Beilishi Road, Xi Cheng District, Beijing, 100037, China.
| | - K Dou
- State Key Laboratory of Cardiovascular Disease, Beijing, China.
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167A Beilishi Road, Xi Cheng District, Beijing, 100037, China.
- Department of Cardiology, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
- National Clinical Research Center for Cardiovascular Diseases, Beijing, China.
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Li G, Hou N, Liu H, Li J, Deng H, Lan H, Xiong S. Dapagliflozin alleviates high glucose-induced injury of endothelial cells via inducing autophagy. Clin Exp Pharmacol Physiol 2024; 51:e13846. [PMID: 38382536 DOI: 10.1111/1440-1681.13846] [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: 10/30/2023] [Revised: 01/03/2024] [Accepted: 01/29/2024] [Indexed: 02/23/2024]
Abstract
Hyperglycaemia is a key factor in the progression of diabetes complications. Dapagliflozin (DAPA), a new type of hypoglycaemic agent, has been shown to play an important role in anti-apoptotic, anti-inflammatory and antioxidant activities. Previous studies have demonstrated an endothelial protective effect of DAPA, but the underlying mechanism was still unclear. Autophagy is a homeostatic cellular mechanism that circulates unfolded proteins and damaged organelles through lysosomal dependent degradation. In this study, we aimed to investigate whether DAPA plays a protective role against high glucose (HG)-induced endothelial injury through regulating autophagy. The results showed that DAPA treatment resulted in increased cell viability. Additionally, DAPA treatment decreased interleukin (IL)-1β, IL-6, and tumour necrosis factor-α levels in endothelial cells subjected to HG conditions. We observed that HG inhibited autophagy, and DAPA increased the autophagy level by inhibiting the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signalling pathway. Chloroquine reversed all of these beneficial effects as an autophagy inhibitor. In summary, the endothelial protective effect of DAPA in HG can be attributed in part to its role in activating of autophagy via the AKT/mTOR signalling pathway. Therefore, suggesting that the activation of autophagy by DAPA may be a novel target for the treatment of HG-induced endothelial cell injury.
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Affiliation(s)
- Gen Li
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Ningxin Hou
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Huagang Liu
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Jun Li
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Hongping Deng
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Hongwen Lan
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Sizheng Xiong
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
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Li X, Zhou J, Li J, Zhu X, Yang W. Effectiveness and safety of blinatumomab for pediatric B cell acute lymphoblastic leukemia with Loeffler's endocarditis. Ann Hematol 2024; 103:1419-1420. [PMID: 38366097 DOI: 10.1007/s00277-024-05656-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 02/08/2024] [Indexed: 02/18/2024]
Affiliation(s)
- Xiaolan Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Jingchong Zhou
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Jun Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Xiaofan Zhu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Wenyu Yang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China.
- Tianjin Institutes of Health Science, Tianjin, 301600, China.
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Li J, Xie F, Ma X. Advances in nanomedicines: a promising therapeutic strategy for ischemic cerebral stroke treatment. Nanomedicine (Lond) 2024; 19:811-835. [PMID: 38445614 DOI: 10.2217/nnm-2023-0266] [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: 03/07/2024] Open
Abstract
Ischemic stroke, prevalent among the elderly, necessitates attention to reperfusion injury post treatment. Limited drug access to the brain, owing to the blood-brain barrier, restricts clinical applications. Identifying efficient drug carriers capable of penetrating this barrier is crucial. Blood-brain barrier transporters play a vital role in nutrient transport to the brain. Recently, nanoparticles emerged as drug carriers, enhancing drug permeability via surface-modified ligands. This article introduces the blood-brain barrier structure, elucidates reperfusion injury pathogenesis, compiles ischemic stroke treatment drugs, explores nanomaterials for drug encapsulation and emphasizes their advantages over conventional drugs. Utilizing nanoparticles as drug-delivery systems offers targeting and efficiency benefits absent in traditional drugs. The prospects for nanomedicine in stroke treatment are promising.
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Affiliation(s)
- Jun Li
- Faculty of Environment & Life, Beijing University of Technology, Beijing, 100124, PR China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, PR China
| | - Fei Xie
- Faculty of Environment & Life, Beijing University of Technology, Beijing, 100124, PR China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, PR China
| | - Xuemei Ma
- Faculty of Environment & Life, Beijing University of Technology, Beijing, 100124, PR China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, PR China
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Xu H, Li J. Disease activity and health-related quality of life among patients with rheumatoid arthritis with different alcohol consumption habits: comment on the article by Alfredsson et al. Arthritis Rheumatol 2024; 76:660. [PMID: 37997611 DOI: 10.1002/art.42763] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023]
Affiliation(s)
- Haojie Xu
- Peking University People's Hospital, Beijing, China
| | - Jun Li
- Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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45
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Chen Y, Dortch RD, Li J. Response to "Validity of Quantitative, Multi-Parametric MRI in the Diagnosis of Polyneuropathies". J Magn Reson Imaging 2024; 59:1465-1466. [PMID: 37427879 DOI: 10.1002/jmri.28889] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 07/11/2023] Open
Abstract
Level of Evidence5Technical Efficacy Stage1
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Affiliation(s)
- Yongsheng Chen
- Department of Neurology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Richard D Dortch
- Department of Translational Neuroscience, Barrow Neurological Institute, Phoenix, Arizona, USA
| | - Jun Li
- Department of Neurology, Houston Methodist Research Institute, Houston, Texas, USA
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Zhang K, Li H, Shi J, Liu W, Wang Y, Tu P, Li J, Song Y. Strategy strengthens structural identification through hyphenating full collision energy ramp-MS 2 and full exciting energy ramp-MS 3 spectra: An application for metabolites identification of rosmarinic acid. Anal Chim Acta 2024; 1296:342346. [PMID: 38401935 DOI: 10.1016/j.aca.2024.342346] [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: 07/08/2023] [Revised: 01/11/2024] [Accepted: 02/04/2024] [Indexed: 02/26/2024]
Abstract
"MS/MS spectrum to structure" analysis is the most challenging task for MS/MS-relied qualitative characterization. The conventional database- and computation-assisted strategies cannot reach confirmative identification, notably for isomers. Hence, an advanced strategy was proposed here through tackling the two determinant obstacles such as the transformation from elemental compositions to fragment ion structures and the linkage style amongst substructures. As typical conjugated structures, esters were measured for strategy illustration, and metabolite identification of a famous natural antioxidant namely rosmarinic acid (RosA) in rat was undertaken for applicability justification. Through programming online energy-resolved (ER)-MS for the first collision cell of Qtrap-MS device, full collision energy ramp (FCER)-MS2 spectrum was configured for [M-H]- ion of each ester to provide optimal collision energies (OCEs) for all concerned diagnostic fragment ions (DFIs), i.e. a-, b-, c-, y-, and z-type ions. The linear correlations between masses and OCEs were built for each ion type to facilitate DFIs recognition from chaotic MS2 spectrum. To identify 1st-generation fragment ions, full exciting energy ramp (FEER)-MS3 spectra were configured for key DFIs via programming the second ER-MS in the latter collision chamber. FEER-MS3 spectrum of 1st-generation fragment ion for ester was demonstrated to be identical with FEER-MS2 spectrum of certain hydrolysis product when sharing the same structure. After applying the advanced strategy to recognize DFIs and identify 1st-generation fragment ions, a total of forty metabolites (M1-M40), resulted from hydrolysis, methylation, sulfation, and glucuronidation, were unambiguously identified for RosA after oral administration. Together, the advanced bottom-up strategy hyphenating FCER-MS2 and FEER-MS3 spectra, is meaningful to strengthen "MS/MS spectrum to structure" analysis through recognizing and identifying fragment ions.
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Affiliation(s)
- Ke Zhang
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, East Road of North 3rd Ring, Chaoyang District, Beijing, 100029, China
| | - Han Li
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, East Road of North 3rd Ring, Chaoyang District, Beijing, 100029, China
| | - Jingjing Shi
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, East Road of North 3rd Ring, Chaoyang District, Beijing, 100029, China
| | - Wenjing Liu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, 999078, Macao
| | - Pengfei Tu
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, East Road of North 3rd Ring, Chaoyang District, Beijing, 100029, China
| | - Jun Li
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, East Road of North 3rd Ring, Chaoyang District, Beijing, 100029, China
| | - Yuelin Song
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, East Road of North 3rd Ring, Chaoyang District, Beijing, 100029, China.
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Li J, Kuang Y, Li W, Xu P, Peng D, Zhou P, Bi Y. Preparation and structural characterization of epoxidized soybean oils-based pressure sensitive adhesive grafted with tea polyphenol palmitate. Int J Biol Macromol 2024; 263:130153. [PMID: 38367778 DOI: 10.1016/j.ijbiomac.2024.130153] [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: 10/31/2023] [Revised: 01/31/2024] [Accepted: 02/11/2024] [Indexed: 02/19/2024]
Abstract
Vegetable oils-based pressure sensitive adhesives (PSAs) are green and sustainable but face unsatisfactory adhesion strengths and are prone to aging during storage and application due to the existence of residual double bonds and massive ester bonds. Nine common antioxidants (tea polyphenol palmitate (TPP), caffeic acid, ferulic acid, gallic acid, butylated hydroxytoluene, tertiary butylhydroquinone, butylated hydroxyanisole, propyl gallate, and tea polyphenols) were grafted into epoxidized soybean oils-PSA (ESO-PSA) system to enhance antiaging properties and adhesion strengths. Results showed ESO-PSAs grafted with caffeic acid, tertiary butylhydroquinone, butylated hydroxyanisole, propyl gallate, tea polyphenols, or TPP didn't occur failure with TPP having best performance. The optimal conditions were ESO reacted with 0.9 % TPP, 70 % rosin ester, and 7.0 % phosphoric acid at 50 °C for 5 min, under which peel strength and loop tack increased to 2.460 N/cm and 1.66 N, respectively, but peel strength residue reduced to 138.09 %, compared with control (0.407 N/cm, 0.43 N, and 1669.99 %). Differential scanning calorimetry and thermogravimetric results showed TPP grafting increased the glass transition temperature of ESO-PSA slightly but improved its thermal stability significantly. Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance results showed TPP, phosphoric acid, and rosin ester all partially participated in the covalently crosslinking polymerization of ESO-PSAs and the rest existed in the network structures in the free form.
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Affiliation(s)
- Jun Li
- Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yongyan Kuang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Wenlong Li
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Panpan Xu
- Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Dan Peng
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | | | - Yanlan Bi
- Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China.
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Li J, Liu Y, Wei Z, Cheng J, Wu Y. The occurrence and development of abdominal aortic aneurysm may be related to the energy metabolism disorder and local inflammation. Heliyon 2024; 10:e27912. [PMID: 38496900 PMCID: PMC10944252 DOI: 10.1016/j.heliyon.2024.e27912] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 03/01/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024] Open
Abstract
Background The cellular mechanism of the formation of abdominal aortic aneurysm (AAA) is very complicated. A series of sophisticated events eventually led to significant pathological changes in the anatomical structure and function of the arterial wall and they are still not clear nowadays. Methods We pooled publicly available GEO datasets (GSE57691 and GSE47472) to get a comprehensive comparisons between normal tissues and AAA tissues to try to reveal molecular mechanism underlying the disease. Total 63 AAA samples and 18 normal tissue samples were compared and we fond that there were 784 significantly different gene (DEGs, threshold set as adjusted P < 0.05 and Log FC < 1) were identified. At the same time, we validate the possible signaling factor expression of AAA by comparing the normal tissue of the human body with the AAA tissue. Results In the pathway enrichment, we found that FOXP3 related signaling pathways, inflammation-related cytokine signaling pathways, interleukin-8-CXCR1 related signaling pathways and VEGFA and FGFR1 related signal pathway were significantly enrichmented. In Weighted gene co-expression network analysis (WGCNA), we found that the key hub genes were significantly related to lipid catabolic metabolism, which further verified the possibility that AAA might relate to energy metabolism disorders. Conclusion Based on the comprehensive analysis of previous high-throughput data and the validation of basic experiments, we found that the occurrence of AAA may be related to energy metabolism disorders and local inflammation.
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Affiliation(s)
- Jun Li
- Department of Endovascular and Vascular Surgery, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, China
| | - Yang Liu
- Department of Urology, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, China
| | - Zhitao Wei
- Department of Urology, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, China
| | - Jie Cheng
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Yongfa Wu
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai, China
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Liu F, Huang H, Yang X, Jiang S, Xu A, Yu Z, Li J, Yu M, Wang Y, Wang B. Ag85B-ENO1 46-82 therapeutic vaccines enhance anti-tumor immunity by inducing CD8 + T cells and remodeling tumor microenvironment. Int Immunopharmacol 2024; 130:111707. [PMID: 38387194 DOI: 10.1016/j.intimp.2024.111707] [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: 11/18/2023] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/24/2024]
Abstract
Lung cancer is the leading cause of cancer-related morbidity and mortality in China. However, the effect of traditional cancer treatment is limited. Herein, we designed a therapeutic cancer vaccine based on the tumor-associated antigen mENO1, which can prevent lung cancer growth in vivo, and explored the underlying mechanism of Ag85B-ENO146-82 therapy. Lewis lung carcinoma (LLC) tumor-bearing immunocompetent C57BL/6 mice that received Ag85B-ENO146-82 treatment showed antitumor effect. Further, we detected CD8+ T, CD4+ T in LLC-bearing C57BL/6 mice to understand the impact of Ag85B-ENO146-82 therapy on antitumor capacity. The Ag85B-ENO146-82 therapy induced intensive infiltration of CD4+ and CD8+ T cells in tumors, increased tumor-specific IFN-γ and TNF-α secretion by CD8+ T cells and promoted macrophage polarization toward M1 phenotype. Flow cytometric analysis revealed that CD8+ T effector memory (TEM) cells and central memory (TCM) cells were upregulated. qPCR and ELISA analysis showed that the expression of IFN-γ and TNF-α were upregulated, whereas of IL1β, IL6 and IL10 were downregulated. This study demonstrated that Ag85B-ENO146-82 vaccine augmented antitumor efficacy, which was CD8+ T cells dependent. Our findings paved the way for therapeutic tumor-associated antigen peptide vaccines to enhance anti-tumor immunotherapy for treatment of cancer.
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Affiliation(s)
- Fengjun Liu
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Huan Huang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Xiaoli Yang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Shasha Jiang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Aotian Xu
- Qingdao Sino-cell Biomedicine Co., Ltd., Qingdao 266000, Shandong, China
| | - Zhongjie Yu
- Qingdao Sino-cell Biomedicine Co., Ltd., Qingdao 266000, Shandong, China
| | - Jun Li
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Meng Yu
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Yunyang Wang
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Bin Wang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao 266000, China; Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China; Qingdao Sino-cell Biomedicine Co., Ltd., Qingdao 266000, Shandong, China.
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Zhang X, Li J, Cao C, Liu Z, Chen Q, Gu Z, Wang W, Fang D, Ge Q, Ding L, Pang C, Wang X. Nrf2 activation by neferine mitigates microglial neuroinflammation after subarachnoid hemorrhage through inhibiting TAK1-NF-κB signaling. Int Immunopharmacol 2024; 130:111693. [PMID: 38428144 DOI: 10.1016/j.intimp.2024.111693] [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: 09/07/2023] [Revised: 02/02/2024] [Accepted: 02/12/2024] [Indexed: 03/03/2024]
Abstract
Oxidative stress and neuroinflammation are two major causes leading to early brain injury after subarachnoid hemorrhage (SAH). Nuclear factor E2-related factor 2 (Nrf2) is a critical transcription factor that contributes to antioxidant responses. Additionally, Nrf2 could inhibit transforming growth factor beta-activated kinase 1 (TAK1), which plays a vital role in microglial activation-mediated neuroinflammation. Neferine (NE) exhibits considerable protective effects in diverse disease models. However, the detailed effect and mechanism of NE on SAH remain unknown. Our data showed that NE treatment significantly reduced behavior and cognitive impairment, and brain edema in the early period after SAH. In addition, NE mitigated SAH-induced oxidative damage, neuroinflammation, and neural death. Moreover, NE inhibited M1 microglial polarization and enhanced M2 phenotype microglia both in vivo and in vitro. Further investigations revealed that NE enhanced the Nrf2-antioxidant response element (ARE) signaling pathway and suppressed TAK1-NF-κB signaling. In contrast, depletion of Nrf2 by ML385 suppressed Nrf2-ARE signaling, induced TAK1-NF-κB activation, and further promoted M1 microglial polarization. Additionally, ML385 abated the neuroprotective effects of NE against SAH. Notably, LPS also aggravated TAK1-NF-κB activation and reversed the beneficial effects of NE after SAH. In summary, NE provides protection after SAH by inhibiting oxidative stress and modulating microglial polarization through Nrf2 activation and TAK1-NF-κB suppression.
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Affiliation(s)
- Xiaotian Zhang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Jun Li
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Changchun Cao
- Department of Pharmacy, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Zhichao Liu
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Qiushi Chen
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Zhijiang Gu
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Weijie Wang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Dazhao Fang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - QianQian Ge
- Department of Gynecology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Lianshu Ding
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China.
| | - Cong Pang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China.
| | - Xiaodong Wang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China.
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