1
|
Tan Q, Wu D, Lin Y, Ai H, Xu J, Zhou H, Gu Q. Identifying eleven new ferroptosis inhibitors as neuroprotective agents from FDA-approved drugs. Bioorg Chem 2024; 146:107261. [PMID: 38460336 DOI: 10.1016/j.bioorg.2024.107261] [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: 01/22/2024] [Revised: 02/24/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
With increasing evidence that ferroptosis is associated with diverse neurological disorders, targeting ferroptosis offers a promising avenue for developing effective pharmaceutical agents for neuroprotection. In this study, we identified ferroptosis inhibitors as neuroprotective agents from US Food and Drug Administration (FDA)-approved drugs. 1176 drugs have been screened against erastin-induced ferroptosis in HT22 cells, resulting in 89 ferroptosis inhibitors. Among them, 26 drugs showed significant activity with EC50 below10 μM. The most active ferroptosis inhibitor is lumateperone tosylate at nanomolar level. 11 drugs as ferroptosis inhibitors were not reported previously. Further mechanistic studies revealed that their mechanisms of actions involve free radical scavenging, Fe2+ chelation, and 15-lipoxygenase inhibition. Notably, the active properties of some drugs were firstly revealed here. These ferroptosis inhibitors increase the chemical diversity of ferroptosis inhibitors, and offer new therapeutic possibilities for the treatments of related neurological diseases.
Collapse
Affiliation(s)
- Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Deyin Wu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Yating Lin
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Haopeng Ai
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| |
Collapse
|
2
|
Tan Q, Joshua AM, Saggar JK, Yu M, Wang M, Kanga N, Zhang JY, Chen X, Wouters BG, Tannock IF. Retraction Note: Effect of pantoprazole to enhance activity of docetaxel against human tumour xenografts by inhibiting autophagy. Br J Cancer 2024; 130:1232. [PMID: 38509357 PMCID: PMC10991281 DOI: 10.1038/s41416-024-02660-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024] Open
Affiliation(s)
- Q Tan
- Department of Medical Biophysics, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - A M Joshua
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Center and University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
- Institute of Medical Science, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - J K Saggar
- Department of Medical Biophysics, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - M Yu
- Department of Medical Biophysics, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - M Wang
- Department of Medical Biophysics, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - N Kanga
- Department of Medical Biophysics, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - J Y Zhang
- Department of Medical Biophysics, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - X Chen
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Center and University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - B G Wouters
- Department of Medical Biophysics, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada
| | - I F Tannock
- Department of Medical Biophysics, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada.
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Center and University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada.
- Institute of Medical Science, University Health Network, University of Toronto, Toronto, ON, M5G2M9, Canada.
| |
Collapse
|
3
|
Dong Z, Liu X, Low W, Riaz M, Tan Q, Sun X, Yan X, Hu C. Abnormal cell wall structure caused by boron nutrient imbalance in orchards could affect psyllid feeding behaviour, resulting in epidemic variation of Asian citrus psyllid. Plant Biol (Stuttg) 2024; 26:282-291. [PMID: 38194355 DOI: 10.1111/plb.13603] [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: 08/28/2022] [Accepted: 11/09/2023] [Indexed: 01/10/2024]
Abstract
The control of Huanglongbing (HLB), one of the most destructive pests of citrus, relies heavily on the reduction of Asian citrus psyllid (ACP), Diaphorina citri Kuwayama. An in-depth understanding of ACP feeding behaviours among citrus plants is urgent for comprehensive management of orchards. An investigation was conducted in 37 citrus orchards in HLB epidemic areas, sampling shoots in the area with aggregation feeding of ACP (ACPf) and shoots in a neighbouring area without ACP feeding (CK), to study the interaction between leaf chemical composition and ACP psyllid feeding behaviours. Results of FTIR showed a strong absorption peak intensity, mainly representing functional groups originating from cell wall components in the leaf with ACP feeding. As compared with the control, cell wall components, such as alkali-soluble pectin, water-soluble pectin, total soluble pectin, cellulose, and hemicellulose, of the cell wall of ACPf increased by 134.0%, 14.0%, 18.0%, 12.5%, and 20.35%, respectively. These results suggest that cell wall mechanical properties significantly decreased in the term of decreases in pectin performance and cellulose mechanical properties. In addition, there was a remarkably lower boron (B) content in leaves and cell wall components with ACP feeding. Further analysis indicated that leaf B content significantly affected leaf cell wall components. Taken together, we provide evidence to demonstrate that the regional distribution of nutrient imbalance in orchards could affect psyllid feeding behaviour by weakening the cell wall structure, resulting in epidemic variation in ACP. This could help us to understand the management of psyllid infections in orchards with unbalanced nutrition.
Collapse
Affiliation(s)
- Z Dong
- College of Resource and Environment, China Agricultural University, Beijing, China
- Microelement Research Center, Hubei Provincial Engineering Laboratory for New Fertilizers, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - X Liu
- Microelement Research Center, Hubei Provincial Engineering Laboratory for New Fertilizers, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - W Low
- South China Agricultural University, Guangzhou, China
- Ganzhou Citrus Research Institute, Ganzhou, Jiangxi Province, China
| | - M Riaz
- South China Agricultural University, Guangzhou, China
- Ganzhou Citrus Research Institute, Ganzhou, Jiangxi Province, China
| | - Q Tan
- Microelement Research Center, Hubei Provincial Engineering Laboratory for New Fertilizers, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - X Sun
- Microelement Research Center, Hubei Provincial Engineering Laboratory for New Fertilizers, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| | - X Yan
- Ganzhou Citrus Research Institute, Ganzhou, Jiangxi Province, China
| | - C Hu
- Microelement Research Center, Hubei Provincial Engineering Laboratory for New Fertilizers, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, China
| |
Collapse
|
4
|
Tan Q, Dong W, Wang Q, Gao L. Dexmedetomidine alleviates Hypoxia/reoxygenation-induced mitochondrial dysfunction in cardiomyocytes via activation of Sirt3/Prdx3 pathway. Daru 2024:10.1007/s40199-024-00504-3. [PMID: 38407745 DOI: 10.1007/s40199-024-00504-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 01/18/2024] [Indexed: 02/27/2024] Open
Abstract
BACKGROUND Myocardial ischemia/reperfusion injury (MIRI) seriously threatens the health of people. The mitochondrial dysfunction in cardiomyocytes can promote the progression of MIRI. Dexmedetomidine (Dex) could alleviate the myocardial injury, which was known to reverse mitochondrial dysfunction in lung injury. However, the function of Dex in mitochondrial dysfunction during MIRI remains unclear. OBJECTIVE To assess the function of Dex in mitochondrial dysfunction during MIRI. METHODS To investigate the function of Dex in MIRI, H9C2 cells were placed in condition of hypoxia/reoxygenation (H/R). CCK8 assay was performed to test the cell viability, and the mitochondrial membrane potential was evaluated by JC-1 staining. In addition, the binding relationship between Sirt3 and Prdx3 was explored by Co-IP assay. Furthermore, the protein expressions were examined using western blot. RESULTS Dex could abolish H/R-induced mitochondrial dysfunction in H9C2 cells. In addition, H/R treatment significantly inhibited the expression of Sirt3, while Dex partially restored this phenomenon. Knockdown of Sirt3 or Prdx3 obviously reduced the protective effect of Dex on H/R-induced mitochondrial injury. Meanwhile, Sirt3 could enhance the function of Prdx3 via deacetylation of Prdx3. CONCLUSION Dex was found to attenuate H/R-induced mitochondrial dysfunction in cardiomyocytes via activation of Sirt3/Prdx3 pathway. Thus, this study might shed new lights on exploring new strategies for the treatment of MIRI.
Collapse
Affiliation(s)
- Qingyun Tan
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No.348, Dexiang Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China
| | - Wenming Dong
- Department of Anesthesiology, Shenzhen Baoan Hospital of TCM, Shenzhen, 518133, Guangdong Province, People's Republic of China
| | - Qingdong Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No.348, Dexiang Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China.
| | - Li Gao
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No.348, Dexiang Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China.
| |
Collapse
|
5
|
Chen GL, Tan Q, Feng YJ, Lan HJ, Yang XW, Zhou XQ. [Determination of 4-methyl-2-pentanol in workplace air by solvent desorption-gas chromatography]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:859-862. [PMID: 37935555 DOI: 10.3760/cma.j.cn121094-20230103-000001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Objective: To establish a method for the determination of 4-methyl-2-pentanol in the air of workplace by gas chromatography. Methods: In January 2022, 4-methyl-2-pentanol in the air of workplace was collected by activated carbontube, eluted with dichloromethane-methanol (95∶5, V/V), separated by capillary column and determined by gas chromatogram. Results: The limit of detection for 4-methyl-2-pentanol was 0.04 μg/ml. The linear range of 4-methyl-2-pentanol was 0.16-1616.60 μg/ml, with the regression equation of y=1.94x-5.48, and the coefficient correlation was 0.99958, and the minimum detection concentration was 0.03 mg/m(3) (collected sample volume was 1.50 L). The within-run precisions were 1.08%-1.75% and the between-run precisions were 1.41%-2.52%. The desorption rates were 95.15%-99.91%. The samples could be stored at least 3 days at room temperature and 7 days at 4 ℃ without significant loss. Conclusion: The method has the advantages of good precision, high sensitivity and simple operation. It is suitable for the determination of 4-methyl-2-pentanol in the air of workplace.
Collapse
Affiliation(s)
- G L Chen
- Laboratory Department, Foshan Institute of Occupational Disease Prevention and Control, Foshan Occupational Health Research Institute, Foshan 528000, China
| | - Q Tan
- Laboratory Department, Foshan Institute of Occupational Disease Prevention and Control, Foshan Occupational Health Research Institute, Foshan 528000, China
| | - Y J Feng
- Laboratory Department, Foshan Nanhai District Center for Disease Control and Prevention, Foshan 528200, China
| | - H J Lan
- Laboratory Department, Foshan Nanhai District Center for Disease Control and Prevention, Foshan 528200, China
| | - X W Yang
- Laboratory Department, Foshan Nanhai District Center for Disease Control and Prevention, Foshan 528200, China
| | - X Q Zhou
- Department of Occupational Health and Occupational Medicine, School of Public Health, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
6
|
Rodriguez J, Tan Q, Šikić H, Taber LA, Bassnett S. The effect of fibre cell remodelling on the power and optical quality of the lens. J R Soc Interface 2023; 20:20230316. [PMID: 37727073 PMCID: PMC10509584 DOI: 10.1098/rsif.2023.0316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/22/2023] [Indexed: 09/21/2023] Open
Abstract
Vertebrate eye lenses are uniquely adapted to form a refractive index gradient (GRIN) for improved acuity, and to grow slowly in size despite constant cell proliferation. The mechanisms behind these adaptations remain poorly understood. We hypothesize that cell compaction contributes to both. To test this notion, we examined the relationship between lens size and shape, refractive characteristics and the cross-sectional areas of constituent fibre cells in mice of different ages. We developed a block-face imaging method to visualize cellular cross sections and found that the cross-sectional areas of fibre cells rose and then decreased over time, with the most significant reduction occurring in denucleating cells in the adult lens cortex, followed by cells in the embryonic nucleus. These findings help reconcile differences between the predictions of lens growth models and empirical data. Biomechanical simulations suggested that compressive forces generated from continuous deposition of fibre cells could contribute to cellular compaction. However, optical measurements revealed that the GRIN did not mirror the pattern of cellular compaction, implying that compaction alone cannot account for GRIN formation and that additional mechanisms are likely to be involved.
Collapse
Affiliation(s)
- J. Rodriguez
- Department of Basic Sciences, University of Health Sciences and Pharmacy in St. Louis, 1 Pharmacy Place, St. Louis, MO 63110, USA
| | - Q. Tan
- Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, 660 South Euclid Ave, Campus Box 8096, St. Louis, MO 63110, USA
| | - H. Šikić
- Department of Mathematics, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - L. A. Taber
- Department of Biomedical Engineering, Washington University, St. Louis, MO 63130, USA
| | - S. Bassnett
- Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, 660 South Euclid Ave, Campus Box 8096, St. Louis, MO 63110, USA
| |
Collapse
|
7
|
Peng X, Tan Q, Zhang Z, Wu D, Xu J, Zhou H, Gu Q. Discovery of neo-Clerodane Diterpenoids from Ajuga campylantha as Neuroprotective Agents against Ferroptosis and Neuroinflammation. J Nat Prod 2023; 86:2006-2021. [PMID: 37566645 DOI: 10.1021/acs.jnatprod.3c00447] [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] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Twelve new neo-clerodane diterpenoids, eight undescribed methoxy/ethoxy acetal analogues, and one new nor-iridane monoterpenoid were isolated from Ajuga campylantha. Their structures were elucidated using a combination of spectroscopic data, quantum chemical calculations, and X-ray crystallography. This research reveals the distinctive structural features of A. campylantha diterpenes, including distinct C rings and 4,18-double bonds, distinguishing them from diterpenes of other plants in the Ajuga genus. Compound 2 represents the first example of a 19(5→6)-abeo-clerodane formed through a Wagner-Meerwein rearrangement. The isolated compounds were assessed for their neuroprotective effects against RSL3-induced ferroptosis in HT22 cells and LPS-induced neuroinflammation in BV-2 cells. Notably, compound 7 inhibits ferroptosis (EC50 = 10 μM) with a potentially new mechanism of action. The preliminary structure-activity relationship studies revealed that the furan-clerodane diterpenoids possess potential ferroptosis inhibitory activity, while the lactone-clerodanes do not. This study represents the first report of furan-containing clerodanes within the Ajuga genus, providing fresh insights into the phytochemistry and pharmacological potential of A. campylantha.
Collapse
Affiliation(s)
- Xing Peng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Zhikang Zhang
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Deyin Wu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| |
Collapse
|
8
|
Liu YX, Yang G, Hu XK, Tan Q, Pan H, Liu K, Huang YY, Yan A, Zhu GH, Mei HB. [Long term follow-up evaluation of combined surgery for congenital tibial pseudarthrosis in children]. Zhonghua Wai Ke Za Zhi 2023; 61:675-680. [PMID: 37400210 DOI: 10.3760/cma.j.cn112139-20230205-00051] [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] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Objective: To explore the long-term effect of combined surgery for the treatment of congenital tibial pseudarthrosis in children. Methods: The clinical data of 44 children with congenital tibial pseudarthrosis who underwent combined surgery (tibial pseudarthrosis tissue resection, intramedullary rod fixation, Ilizarov external fixator fixation, wrapped autologous iliac bone graft) from August 2007 to October 2011 at the Department of Pediatric Orthopedics, Hunan Children's Hospital were collected retrospectively. There were 33 males and 11 females. The age at the time of surgery was (3.7±2.2)years (range:0.6 to 12.4 years), including 25 cases under 3 years old and 19 cases above 3 years old.Among them, 37 cases were complicated with neurofibromatosis type 1.The operation status, postoperative complications and follow-up results were recorded. Results: The follow-up time after surgery was (10.9±0.7)years (range:10 to 11 years).Thirty-nine out of 44 patients (88.6%) achieved initial healing of tibial pseudarthrosis, with an average healing time of (4.3±1.1)months (range:3 to 10months).In the last follow-up, 36 cases (81.8%) had unequal tibial length, 20 cases (45.4%) had refractures, 18 cases (40.9%) had ankle valgus, 9 cases (20.4%) had proximal tibial valgus, and 11 cases (25.0%) had high arched feet.Nine cases (20.4%) developed distal tibial epiphyseal plate bridging.17 cases (38.6%) had abnormal tibial mechanical axis.Seven cases (15.9%) developed needle infection, and one case (2.3%) developed tibial osteomyelitis. 21 patients (47.7%) had excessive growth of the affected femur.Five patients (11.3%) had ankle stiffness, and 34 patients (77.2%) had intramedullary rod displacement that was not in the center of the tibial medullary cavity.Among them, 8 cases (18.1%) protruded the tibial bone cortex and underwent intramedullary rod removal.18 children have reached skeletal maturity, while 26 children have not been followed up until skeletal maturity. Conclusion: Combined surgery for the treatment of congenital pseudarthrosis of the tibia in children has a high initial healing rate, but complications such as unequal tibia length, refracture, and ankle valgus occur during long-term follow-up, requiring multiple surgical treatments.
Collapse
Affiliation(s)
- Y X Liu
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - G Yang
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - X K Hu
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - Q Tan
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - H Pan
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - K Liu
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - Y Y Huang
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - A Yan
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - G H Zhu
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| | - H B Mei
- Department of Pediatric Orthopedics, Hunan Children's Hospital;the School of Pediatrics, University of South China, Changsha 410007, China
| |
Collapse
|
9
|
Shi H, Jiang X, Cao L, Peng X, Tan Q, Teng X, Gu Q, He L. Chemical constituents of Ajuga forrestii and their anti-ferroptosis activity. Fitoterapia 2023; 166:105461. [PMID: 36804655 DOI: 10.1016/j.fitote.2023.105461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023]
Abstract
Six new neoclerodane diterpenoids (1-6), along with ten known compounds (7-16), were isolated from Ajuga forrestii. Their structures were elucidated by HRESIMS, 1D and 2D NMR, ECD calculation, and single-crystal X-ray diffraction analysis. The structure of a known neoclerodane diterpene ajudecunoid C (6) was revised based on the reported NMR empirical rules. All the isolates were evaluated for their inhibitory effect on RSL3-induced ferroptosis in HT22 mouse hippocampal neuronal cells. Among them, compounds 8, 9, and 12 significantly inhibited RSL3-induced ferroptosis with EC50 values of 0.45 μM, 0.076 μM, and 0.14 μM.
Collapse
Affiliation(s)
- Huiwen Shi
- Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Xiufen Jiang
- Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Liudan Cao
- Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Xing Peng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Xifeng Teng
- Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Key Laboratory of Lingnan Medicinal Materials Production and Development, National Administration of Traditional Chinese Medicine, Guangzhou 510006, PR China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China.
| | - Lin He
- Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Engineering and Technology Research Center of Cosmetics, Guangdong Pharmaceutical University, Zhongshan 528458, PR China.
| |
Collapse
|
10
|
Tan Q, Ji Y, Wang XL, Wang ZW, Qi XW, Liu YK. [Clinicopathological features of patients with RET fusion-positive non-small cell lung cancer]. Zhonghua Bing Li Xue Za Zhi 2023; 52:124-128. [PMID: 36748131 DOI: 10.3760/cma.j.cn112151-20220717-00614] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Objective: To investigate the clinicopathological features, treatment and prognosis of patients with RET fusion positive non-small cell lung cancer (NSCLC). Methods: A total of 1 089 NSCLCs were retrieved at Affiliated Hospital of Jiangnan University from August 2018 to April 2020. In all cases, multiple gene fusion detection kits (fluorescent PCR method) were used to detect the gene status of RET, EGFR, ALK, ROS1, KRAS, BRAF and HER2; and immunohistochemical method was used to detect the expression of PD-L1 and mismatch repair related proteins. The correlation between RET-fusion and patients' age, gender, smoking history, tumor stage, grade, pathologic type, and PD-L1, mismatch repair related protein expression was analyzed. Results: There were 22 cases (2.02%) detected with RET fusion-positive in 1 089 NSCLC patients, in which 11 males and 11 females; and the median age was 63.5 years. There were 20 adenocarcinomas, including 11 acinar predominant adenocarcinoma (APA), five solid predominant adenocarcinoma (SPA) and four lepidic predominant adenocarcinoma (LPA); There were one case each of squamous cell carcinoma (non-keratinizing type) and sarcomatoid carcinoma (pleomorphic carcinoma). There were 6 and 16 patients with RET fusion-positive who were in stage Ⅰ-Ⅱ and Ⅲ-Ⅳ respectively, and 16 cases with lymph node metastasis, 11 cases with distant metastasis. Among RET fusion-positive cases, one was detected with HER2 co-mutation. The tumor proportion score of PD-L1≥1% in patients with RET fusion positive lung cancer was 54.5% (12/22). Defects in mismatch repair protein expression were not found in patients with RET fusion positive NSCLC. Four patients with RET fusions positive (two cases of APA and two cases of SPA) received pratinib-targeted therapy, and two showed benefits from this targeted therapy. Conclusions: The histological subtypes of RET fusions positive NSCLC are more likely to be APA or SPA. RET fusion-positive NSCLC patients are associated with advanced clinical stage, lymph node metastases, and they may benefit from targeted therapy with RET-specific inhibitors.
Collapse
Affiliation(s)
- Q Tan
- Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Y Ji
- Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - X L Wang
- Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Z W Wang
- Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - X W Qi
- Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Y K Liu
- Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| |
Collapse
|
11
|
Jiang A, Xu P, Yang Z, Zhao Z, Tan Q, Li W, Song C, Dai H, Leng H. Increased Sparc release from subchondral osteoblasts promotes articular chondrocyte degeneration under estrogen withdrawal. Osteoarthritis Cartilage 2023; 31:26-38. [PMID: 36241137 DOI: 10.1016/j.joca.2022.08.020] [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: 04/04/2022] [Revised: 07/08/2022] [Accepted: 08/04/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The incidence of osteoarthritis (OA) in menopausal women is significantly higher than in same-aged men. Investigating the role of subchondral osteoblasts in estrogen deficiency-induced OA may help elucidate the pathological mechanism, providing new insights for the diagnosis and treatment of menopausal OA. METHODS A classical ovariectomy-induced OA (OVX-OA) rat model was utilized to isolate primary articular chondrocytes and subchondral osteoblasts, which were identified and then cocultured in Transwell. The expression of chondrocyte anabolic and catabolic indicators was evaluated. The differentially expressed proteins in the conditioned medium (CM) of osteoblasts were identified by Liquid Chromatograph-Mass Spectrometer (LC-MS/MS). Normal chondrocytes were treated with osteoblast CM, and then RNA sequencing was performed on the treated chondrocytes. KEGG was used to identify significant enrichment of signaling pathways, and Simple Western was used to verify the expression of related proteins in the signaling pathways. RESULTS Coculture of OVX-OA subchondral osteoblasts with chondrocytes significantly downregulated the expression of the anabolic indicators and upregulated the expression of the catabolic indicators in chondrocytes. 1,601 proteins were identified in both normal and OVX osteoblast culture supernatants. Protein-protein interaction network analysis revealed that Sparc was one of the hub proteins. The AMPK/Foxo3a signaling pathway of chondrocytes was downregulated by OVX-OA osteoblasts CM. AICAR, the AMPK agonist, partially reversed the catabolic effect of OVX-OA osteoblasts on chondrocytes. CONCLUSIONS Sparc secreted by OVX-OA subchondral osteoblasts can downregulate the AMPK/Foxo3a signaling pathway of chondrocytes, thereby promoting chondrocyte degeneration.
Collapse
Affiliation(s)
- A Jiang
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China; Department of General Surgery, Beijing Pinggu Hospital, Beijing 101299, China
| | - P Xu
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z Yang
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China
| | - Z Zhao
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China
| | - Q Tan
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China
| | - W Li
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Beijing 100191, China
| | - C Song
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China; Beijing Key Lab of Spine Diseases, Beijing 100191, China
| | - H Dai
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Peking University, Beijing 100191, China
| | - H Leng
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China.
| |
Collapse
|
12
|
Fang Y, Tan Q, Zhou H, Xu J, Gu Q. Discovery and optimization of 2-(trifluoromethyl)benzimidazole derivatives as novel ferroptosis inducers in vitro and in vivo. Eur J Med Chem 2022; 245:114905. [DOI: 10.1016/j.ejmech.2022.114905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/02/2022] [Accepted: 11/02/2022] [Indexed: 11/10/2022]
|
13
|
Peng X, Tan Q, Wu L, Wu D, Xu J, Zhou H, Gu Q. Ferroptosis Inhibitory Aromatic Abietane Diterpenoids from Ajuga decumbens and Structural Revision of Two 3,4-Epoxy Group-Containing Abietanes. J Nat Prod 2022; 85:1808-1815. [PMID: 35796002 DOI: 10.1021/acs.jnatprod.2c00352] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Two new 3,4-epoxy group-containing abietane diterpenoids (1 and 2), together with five known diterpenoids (3-7), were isolated from Ajuga decumbens. Their structures were elucidated by spectroscopic data analysis, NMR calculations, and X-ray diffraction experiments. The structures of two known abietane diterpenoids were revised based on NMR calculations and X-ray diffraction data. Notably, compound 4 specifically inhibited RSL3-induced ferroptosis with an EC50 of 56 nM by antioxidation. Moreover, 4 significantly decreased RSL3-induced lipid and cytosolic ROS accumulation and ferroptosis marker gene PTGS2 mRNA expression. This work reports the most potent natural inhibitor against ferroptosis found so far.
Collapse
Affiliation(s)
- Xing Peng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Leiming Wu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Deyin Wu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| |
Collapse
|
14
|
Zhu X, Zou Y, Wu T, Ni J, Tan Q, Wang Q, Zhang M. ANP32E contributes to gastric cancer progression via NUF2 upregulation. Mol Med Rep 2022; 26:275. [PMID: 35795988 PMCID: PMC9364136 DOI: 10.3892/mmr.2022.12791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 06/09/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Xiaowen Zhu
- Department of Proctology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Yumin Zou
- Department of Central Sterile Supply, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Tong Wu
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Jian Ni
- Department of Proctology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Qingyun Tan
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Qingdong Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Meijia Zhang
- Department of Otolaryngology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| |
Collapse
|
15
|
O'Malley D, Jin F, Ramos J, Tan Q, Monk B. 19TiP SGNTUC-019 phase II basket study of tucatinib and trastuzumab in solid tumors with human epidermal growth factor receptor 2 alterations: Uterine and cervical cancer cohorts. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
16
|
Tan Q, Wang J, Zeng Q, Ding X, Bai S, Peng H, Xuan Y, Zhang K. Effects of rapeseed meal on laying performance and egg quality in laying ducks. Poult Sci 2022; 101:101678. [PMID: 35065343 PMCID: PMC8784318 DOI: 10.1016/j.psj.2021.101678] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/29/2021] [Accepted: 12/10/2021] [Indexed: 11/06/2022] Open
Abstract
This study was conducted to investigate the effect of different varieties of rapeseed meal (RSM) with different concentrations of glucosinolates (Gls) and erucic acid (EA) on performance and egg quality of laying ducks. A total of 576 twenty eight-wk-old laying ducks were randomly allocated to 4 treatments. Each treatment had 8 replicates of 18 laying ducks raised in 6 adjacent cages with 3 laying ducks per cage. The control diet was corn soybean meal based without RSM. Three varieties of RSM varying in Gls concentrations were supplemented to the base diet at 10% by substituting soybean meal to formulate the three RSM diets. The experiment lasted 12 wk. Diets with 10% RSM decreased average egg weight (P < 0.01) and feed intake (P = 0.07) compared with the control diet, but there was no significant difference in laying performance among the 3 RSM diets. RSM increased color value (P < 0.05) and crude protein (CP) content (P < 0.05) of yolk compared with the control diet, but had no significant effects on the other egg quality indexes including eggshell strength, albumen height, Haugh unit, and the composition ratio of eggshell, albumen and yolk. RSM decreased total monounsaturated fatty acids (MUFA) (P < 0.01) and increased total polyunsaturated fatty acids (PUFA) (P < 0.01) of yolk, but total saturated fatty acids (SFA) proportions and UFA/SFA ratio of egg yolk were not significantly affected by RSM. RSM increased deposition of trimethylamine (TMA) and 5-vinyl-1,3-oxazolidine-2-thione (5-VOT) in yolk (P < 0.01); moreover, the high Gls RSM increased deposition of TMA (P < 0.01) and 5-VOT in yolk (P < 0.01) compared with the RSM varieties low in Gls. These results suggested that dietary inclusion of 10% RSM decreased egg weight of laying ducks, and affected yolk quality especially yolk color, fatty acid profile, CP, TMA, and 5-VOT content of yolk. Moreover, RSM with higher Gls concentration resulted in higher deposition of TMA and 5-VOT in egg yolk.
Collapse
|
17
|
Fang Y, Tan Q, Zhou H, Gu Q, Xu J. Discovery of novel diphenylbutene derivative ferroptosis inhibitors as neuroprotective agents. Eur J Med Chem 2022; 231:114151. [DOI: 10.1016/j.ejmech.2022.114151] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 01/07/2022] [Accepted: 01/20/2022] [Indexed: 01/15/2023]
|
18
|
Li T, Stefano G, Raza GS, Sommerer I, Riederer B, Römermann D, Tan X, Tan Q, Pallagi P, Hollenbach M, Herzig K, Seidler U. Hydrokinetic pancreatic function and insulin secretion are moduled by Cl - uniporter Slc26a9 in mice. Acta Physiol (Oxf) 2022; 234:e13729. [PMID: 34525257 DOI: 10.1111/apha.13729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 09/01/2021] [Accepted: 09/04/2021] [Indexed: 11/29/2022]
Abstract
AIM Slc26a9 is a member of the Slc26 multifunctional anion transporter family. Polymorphisms in Slc26a9 are associated with an increased incidence of meconium ileus and diabetes in cystic fibrosis patients. We investigated the expression of Slc26a9 in the murine pancreatic ducts, islets and parenchyma, and elucidated its role in pancreatic ductal electrolyte and fluid secretion and endocrine function. METHODS Pancreatic Slc26a9 and CFTR mRNA expression, fluid and bicarbonate secretion were assessed in slc26a9-/- mice and their age- and sex-matched wild-type (wt) littermates. Glucose and insulin tolerance tests were performed. RESULTS Compared with stomach, the mRNA expression of Slc26a9 was low in pancreatic parenchyma, 20-fold higher in microdissected pancreatic ducts than parenchyma, and very low in islets. CFTR mRNA was ~10 fold higher than Slc26a9 mRNA expression in each pancreatic cell type. Significantly reduced pancreatic fluid secretory rates and impaired glucose tolerance were observed in female slc26a9-/- mice, whereas alterations in male mice did not reach statistical significance. No significant difference was observed in peripheral insulin resistance in slc26a9-/- compared to sex- and aged-matched wt controls. In contrast, isolated slc26a9-/- islets in short term culture displayed no difference in insulin content, but a significantly reduced glucose-stimulated insulin secretion compared to age- and sex-matched wt islets, suggesting that the impaired glucose tolerance in the absence of Slc26a9 expression these is a pancreatic defect. CONCLUSIONS Deletion of Slc26a9 is associated with a reduction in pancreatic fluid secretion and impaired glucose tolerance in female mice. The results underline the importance of Slc26a9 in pancreatic physiology.
Collapse
Affiliation(s)
- T. Li
- Department of Gastroenterology Hannover Medical School Hannover Germany
- Department of Thyroid and Breast Surgery Affiliated Hospital of Zunyi Medical University Zunyi P.R. China
| | - G. Stefano
- Department of Gastroenterology Hannover Medical School Hannover Germany
| | - G. S. Raza
- Institute of Biomedicine and Biocenter of Oulu Oulu University Oulu Finland
| | - I. Sommerer
- Department of Medicine Szeged University Szeged Hungary
| | - B. Riederer
- Department of Gastroenterology Hannover Medical School Hannover Germany
| | - D. Römermann
- Department of Gastroenterology Hannover Medical School Hannover Germany
| | - X. Tan
- Department of Gastroenterology Hannover Medical School Hannover Germany
| | - Q. Tan
- Department of Gastroenterology Hannover Medical School Hannover Germany
| | - P. Pallagi
- Department of Gastroenterology Leipzig University Leipzig Germany
| | - M. Hollenbach
- Department of Medicine Szeged University Szeged Hungary
| | - K.‐H. Herzig
- Institute of Biomedicine and Biocenter of Oulu Oulu University Oulu Finland
- Department of Gastroenterology and Metabolism Poznan University of Medical Sciences Poznan Poland
| | - U. Seidler
- Department of Gastroenterology Hannover Medical School Hannover Germany
| |
Collapse
|
19
|
Zuo Z, Li Y, Peng K, Li X, Tan Q, Mo Y, Lan Y, Zeng W, Qi W. CT texture analysis-based nomogram for the preoperative prediction of visceral pleural invasion in cT1N0M0 lung adenocarcinoma: an external validation cohort study. Clin Radiol 2021; 77:e215-e221. [PMID: 34916048 DOI: 10.1016/j.crad.2021.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/12/2021] [Indexed: 12/29/2022]
Abstract
AIM To develop a nomogram based on computed tomography (CT) texture analysis for the preoperative prediction of visceral pleural invasion in patients with cT1N0M0 lung adenocarcinoma. MATERIALS AND METHODS A dataset of chest CT containing lung nodules was collected from two institutions, and all surgically resected nodules were classified pathologically based on the presence of visceral pleural invasion. Each nodule on the CT image was segmented automatically by artificial-intelligence software and its CT texture features were extracted. The dataset was divided into training and external validation cohorts according to the institution, and a nomogram for predicting visceral pleural invasion was developed and validated. RESULTS Of a total of 313 patients enrolled from two independent institutions, 63 were diagnosed with visceral pleural invasion. Three-dimensional (3D) CT long diameter, skewness, and sphericity, and chronic obstructive pulmonary disease were identified as independent predictors for visceral pleural invasion by multivariable logistic regression. The nomogram based on multivariable logistic regression showed great discriminative ability, as indicated by a C-index of 0.890 (95% confidence interval [CI]: 0.867-0.914) and 0.864 (95% CI: 0.817-0.911) for the training and external validation cohorts, respectively. Additionally, calibration of the nomogram revealed good predictive ability, as indicated by the Brier score (0.108 and 0.100 for the training and external validation cohorts, respectively). CONCLUSIONS A nomogram was developed that could compute the probability of visceral pleural invasion in patients with cT1N0M0 lung adenocarcinoma with good calibration and discrimination. The nomogram has potential as a reliable tool for clinical evaluation and decision-making.
Collapse
Affiliation(s)
- Z Zuo
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, Hunan, China
| | - Y Li
- Department of Radiology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - K Peng
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - X Li
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, Hunan, China
| | - Q Tan
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, Hunan, China
| | - Y Mo
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, Hunan, China
| | - Y Lan
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - W Zeng
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, Hunan, China
| | - W Qi
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
| |
Collapse
|
20
|
Guo YJ, Wang ZY, Wang YS, Chen B, Huang YQ, Li P, Tan Q, Zhang HY, Chen W. Impact of drinking water supplemented 2-hydroxy-4-methylthiobutyric acid in combination with acidifier on performance, intestinal development, and microflora in broilers. Poult Sci 2021; 101:101661. [PMID: 35042180 PMCID: PMC8777144 DOI: 10.1016/j.psj.2021.101661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/07/2021] [Revised: 11/02/2021] [Accepted: 11/25/2021] [Indexed: 12/16/2022] Open
Abstract
In addition to offering methionine, 2-hydroxy-4-methylthiobutyric acid (HMTBa) is also an organic acid and shows excellent bacteriostasis. Therefore, 3 experiments were conducted to determine the influence of drinking water supplemented HMTBa in combination with acidifier on performance, intestinal development, and microflora in broilers. The addition of different concentration (0.02–0.20%) of the blend of HMTBa and other acids significantly reduced the pH of water and exerted antimicrobial activity in dose-dependent manner in vitro. The outcomes from animal trial consisting of the drinking water with blended acidifier at 0.00, 0.05, 0.10, 0.15, and 0.20% indicated that the water with 0.15 or 0.20% acidifier resulted in linear and quadratic higher body weight at 42 d, gain and water consumption during 1 to 42 d (P < 0.05). In experiment 3, responding to graded blended acidifier in drinking water, birds receiving 0.10, 0.15, and 0.20% acidifier decreased the internal pH of gastrointestinal tract and muscle, and exhibited increased duodenal weight, length, villus high, and the ratio of villus high to crypt depth. Drinking water with 0.2% blended acidifier increased the abundance of probiotics (Bacteroidaceae, Ruminococcaceae, and Lachnospiraceae) and decreased the account of pathogenic bacteria such as Desulfovibrionaceae. Alternations in gut microflora were closely related to the metabolism of carbohydrate, amino acid, and vitamins. These findings, therefore, suggest that drinking water with 0.10 to 0.13% the combination HMTBa with acidifier might benefit to intestinal development and gut microbiota, and the subsequent produce a positive effect on the performance of broilers.
Collapse
Affiliation(s)
- Y J Guo
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - Z Y Wang
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - Y S Wang
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - B Chen
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - Y Q Huang
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| | - P Li
- Novus International, Shanghai, China, 200080
| | - Q Tan
- Novus International, Shanghai, China, 200080
| | - H Y Zhang
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002.
| | - W Chen
- College of Animal Science and Technology, Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China, 450002
| |
Collapse
|
21
|
Hu H, Tan Q, Wang J, Liu Y, Yang Y, Zhao J. Drug-coated balloon angioplasty for failing haemodialysis access: meta-analysis of randomized clinical trials. Br J Surg 2021; 108:1293-1303. [PMID: 34595522 PMCID: PMC10364885 DOI: 10.1093/bjs/znab301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/09/2021] [Accepted: 07/25/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Arteriovenous fistulas, a major treatment for end-stage kidney disease, frequently require endovascular reinterventions to maintain haemodialysis function. Drug-coated angioplasty balloons (DCBs) were developed with the intention of reducing reintervention rates. The aim of this study was to perform a systematic review and meta-analysis of DCBs in the treatment of failing haemodialysis access. METHODS Electronic databases were searched systematically to identify all relevant RCTs and any follow-up studies from RCTs. Pooled estimates of dichotomous outcomes were calculated using the odds ratio (OR) and 95 per cent confidence interval. Effect data are presented as summary hazard ratio and 95 per cent confidence interval. RESULTS Some 19 studies from 18 RCTs and comprising 1898 patients were included in the meta-analysis. Compared with plain balloon angioplasty (PBA), DCB use was associated with higher target-lesion primary patency (HR 0.60, 95 per cent c.i. 0.45 to 0.79), access-circuit primary patency (HR 0.67, 0.56 to 0.80), and less target-lesion revascularization (TLR) within 6 months (OR 0.33, 0.23 to 0.47). No difference was observed between DCB and PBA in 12-month TLR (OR 0.62, 0.28 to 1.37). Mortality after DCB use was similar to that associated with PBA use at 6 months (OR 1.20, 0.65 to 2.21) and 12 months (OR 0.99, 0.66 to 1.49), and was higher at 24 months (23.1 versus 16.6 per cent), although the difference was not statistically significant (OR 1.53, 0.92 to 2.53). CONCLUSION Drug-coated balloon angioplasty of haemodialysis fistulas is associated with higher patency rates and lower rates of reintervention in the short to mid term. Although mortality rates appeared to be higher with drug-coated angioplasty at 24 months, this did not reach statistical significance.
Collapse
Affiliation(s)
- H Hu
- Department of Vascular Surgery and National Clinical Research Centre for Geriatrics, West China of Sichuan University Hospital, Chengdu, China
| | - Q Tan
- Department and Laboratory of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital of Sichuan University, Chengdu, China
| | - J Wang
- Department of Vascular Surgery and National Clinical Research Centre for Geriatrics, West China of Sichuan University Hospital, Chengdu, China
| | - Y Liu
- Department of Vascular Surgery and National Clinical Research Centre for Geriatrics, West China of Sichuan University Hospital, Chengdu, China
| | - Y Yang
- Department of Vascular Surgery and National Clinical Research Centre for Geriatrics, West China of Sichuan University Hospital, Chengdu, China
| | - J Zhao
- Department of Vascular Surgery and National Clinical Research Centre for Geriatrics, West China of Sichuan University Hospital, Chengdu, China
| |
Collapse
|
22
|
Wei W, Liu C, Yao R, Tan Q, Wang Q, Tian H. miR‑486‑5p suppresses gastric cancer cell growth and migration through downregulation of fibroblast growth factor 9. Mol Med Rep 2021; 24:771. [PMID: 34490480 PMCID: PMC8436225 DOI: 10.3892/mmr.2021.12411] [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: 04/02/2021] [Accepted: 08/26/2021] [Indexed: 11/23/2022] Open
Abstract
Non-coding RNAs serve essential roles in regulating mRNA and protein expression and dysregulation of non-coding RNAs participates in a variety of types of cancer. microRNAs (miRNAs/miRs), which are 21–24 nucleotides non-coding RNAs, have been shown to be important for the development of gastric cancer (GC). However, the role of miR-486-5p in GC remains to be elucidated. The present study found that miR-486-5p was downregulated in GC tissues. Comparing with gastric normal cells GES-1, GC cells, including MKN-45, AGS, HGC27 and MKN74, had reduced abundance of miR-486-5p transcript. CCK8 and colony formation assays demonstrated that GC cell growth and proliferation were enhanced by miR-486-5p inhibitors and were suppressed by miR-486-5p mimics. miR-486-5p also suppressed cell cycle process and migration and promoted apoptosis in GC cells, as verified by propidium iodide (PI) staining, Transwell assay and PI/Annexin V staining. miR-486-5p downregulated fibroblast growth factor 9 (FGF9) through combining to its 3′untranslated region. Overexpression of FGF9 accelerated the growth and proliferation of GC cells. The expression of miR-486-5p was negatively associated with FGF9 mRNA expression in GC samples. These results revealed that miR-486-5p was a tumor suppressor in GC. Downregulation of FGF9 contributed to the role of miR-486-5p in GC.
Collapse
Affiliation(s)
- Weiwei Wei
- Department of General Surgery, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Chunyu Liu
- Department of General Surgery, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Rongrong Yao
- Department of Interventional Radiology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Qingyun Tan
- Department of Anesthesiology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Qingdong Wang
- Department of Anesthesiology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Hao Tian
- Department of General Surgery, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| |
Collapse
|
23
|
Liu Y, Li S, Gao Z, Li S, Tan Q, Li Y, Wang D, Wang Q. Indoleamine 2,3-Dioxygenase 1 (IDO1) Promotes Cardiac Hypertrophy via a PI3K-AKT-mTOR-Dependent Mechanism. Cardiovasc Toxicol 2021; 21:655-668. [PMID: 34021461 PMCID: PMC8211584 DOI: 10.1007/s12012-021-09657-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/04/2021] [Indexed: 01/25/2023]
Abstract
Indoleamine 2,3-dioxygenase 1 (IDO1) is an enzyme for tryptophan metabolism, involved in immune cell differentiation/maturation and cancer biology. IDO1 is also expressed in cardiomyocytes, but its roles in the cardiovascular system are not fully understood. Here, we reported the functions of IDO1 during cardiac hypertrophy. Quantitative real-time PCR and Western blot experiments demonstrated the upregulation of IDO1 mRNA and protein levels in human and hypertrophic mouse hearts, as well as in angiotensin II (Ang II)-induced hypertrophic rat cardiomyocytes. IDO1 activity and metabolite product kynurenine were upregulated in rodent hypertrophic hearts and cardiomyocytes. Inhibition of IDO1 activity with PF-06840003 reduced Ang II-induced cardiac hypertrophy and rescued cardiac function in mice. siRNA-mediated knockdown of Ido1 repressed Ang II-induced growth in cardiomyocyte size and overexpression of hypertrophy-associated genes atrial natriuretic peptide (Anp or Nppa), brain natriuretic peptide (Bnp or Nppb), β-myosin heavy chain (β-Mhc or Myh7). By contrast, adenovirus-mediated rat Ido1 overexpression in cardiomyocytes promoted hypertrophic growth induced by Ang II. Mechanism analysis showed that IDO1 overexpression was associated with PI3K-AKT-mTOR signaling to activate the ribosomal protein S6 kinase 1 (S6K1), which promoted protein synthesis in Ang II-induced hypertrophy of rat cardiomyocytes. Finally, we provided evidence that inhibition of PI3K with pictilisib, AKT with perifosine, or mTOR with rapamycin, blocked the effects of IDO1 on protein synthesis and cardiomyocyte hypertrophy in Ang II-treated cells. Collectively, our findings identify that IDO1 promotes cardiomyocyte hypertrophy partially via PI3K-AKT-mTOR-S6K1 signaling.
Collapse
MESH Headings
- Adult
- Aged
- Animals
- Cardiomegaly/drug therapy
- Cardiomegaly/enzymology
- Cardiomegaly/pathology
- Case-Control Studies
- Cells, Cultured
- Disease Models, Animal
- Female
- Humans
- Indoleamine-Pyrrole 2,3,-Dioxygenase/antagonists & inhibitors
- Indoleamine-Pyrrole 2,3,-Dioxygenase/genetics
- Indoleamine-Pyrrole 2,3,-Dioxygenase/metabolism
- Kynurenine/metabolism
- Male
- Mice
- Middle Aged
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/pathology
- Phosphatidylinositol 3-Kinase/metabolism
- Protein Kinase Inhibitors/pharmacology
- Proto-Oncogene Proteins c-akt/antagonists & inhibitors
- Proto-Oncogene Proteins c-akt/metabolism
- Rats, Sprague-Dawley
- Signal Transduction
- TOR Serine-Threonine Kinases/antagonists & inhibitors
- TOR Serine-Threonine Kinases/metabolism
- Rats
Collapse
Affiliation(s)
- Yang Liu
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Shuang Li
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Zhanqun Gao
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Shuangjia Li
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Qingyun Tan
- Department of Anesthesiology, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Yanmei Li
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Dongwei Wang
- Department of Anesthesiology, First Affiliated Hospital of Jiamusi University, Jiamusi, China.
| | - Qingdong Wang
- Department of Anesthesiology, First Affiliated Hospital of Jiamusi University, Jiamusi, China.
| |
Collapse
|
24
|
Tan Q, Fang Y, Peng X, Zhou H, Xu J, Gu Q. A new ferroptosis inhibitor, isolated from Ajuga nipponensis, protects neuronal cells via activating NRF2-antioxidant response elements (AREs) pathway. Bioorg Chem 2021; 115:105177. [PMID: 34303035 DOI: 10.1016/j.bioorg.2021.105177] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/23/2021] [Accepted: 07/12/2021] [Indexed: 01/18/2023]
Abstract
Ferroptosis is a new form of cell death, and inhibition of ferroptosis is a promising strategy to treat neurological diseases. In this work, sixteen compounds were isolated from Ajuga nipponensis and assayed for anti-ferroptosis activity in HT22 mouse hippocampal neuronal cells. Ajudecunoid C (1, ADC), a new neoclerodane diterpenoid, showed significant inhibitory activity against erastin and RSL3-induced ferroptosis with EC50 values of 4.1 ± 1.0 and 3.6 ± 0.3 μM, respectively. Experimental results demonstrated that ADC effectively prevented ferroptosis through scavenging free radical and activating NRF2-antioxidant response elements (AREs) pathway. This study reveals that ADC, as a new ferroptosis inhibitor, is a promising lead compound for the development of drugs against ferroptosis-related neurological diseases.
Collapse
Affiliation(s)
- Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Yuying Fang
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Xing Peng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China.
| |
Collapse
|
25
|
Peng X, Tan Q, Zhou H, Xu J, Gu Q. Discovery of phloroglucinols from Hypericum japonicum as ferroptosis inhibitors. Fitoterapia 2021; 153:104984. [PMID: 34216691 DOI: 10.1016/j.fitote.2021.104984] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 06/24/2021] [Accepted: 06/27/2021] [Indexed: 01/18/2023]
Abstract
Ferroptosis is a new type of cell death, which involves central neuronal system. Inhibition of ferroptosis is a promising strategy to prevent and treat neurological diseases. Thirteen phloroglucinols (1-13) were obtained from the whole plants of Hypericum japonicum. Of them, compounds 1-3 are new ones. Their structures were elucidated by extensive analysis of spectroscopic data and X-ray diffraction. All the isolates were evaluated for their inhibitory effect on RSL3-induced ferroptosis. Two new compounds 2-3 showed significant inhibitory effect with EC50 of 0.48 ± 0.14 μM and 0.94 ± 0.14 μM, respectively. DPPH free radical scavenging abilities of all compounds were assessed to evaluate their antioxidant effect. This work first reports the anti-ferroptosis activity of phloroglucinols.
Collapse
Affiliation(s)
- Xing Peng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China.
| |
Collapse
|
26
|
Fang Y, Chen X, Tan Q, Zhou H, Xu J, Gu Q. Inhibiting Ferroptosis through Disrupting the NCOA4-FTH1 Interaction: A New Mechanism of Action. ACS Cent Sci 2021; 7:980-989. [PMID: 34235259 PMCID: PMC8227600 DOI: 10.1021/acscentsci.0c01592] [Citation(s) in RCA: 133] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Indexed: 05/09/2023]
Abstract
Ferroptosis is an iron-dependent form of oxidative cell death, and the inhibition of ferroptosis is a promising strategy with which to prevent and treat neurological diseases. Herein we report a new ferroptosis inhibitor 9a with a novel mechanism of action. It is demonstrated that nuclear receptor coactivator 4 (NCOA4), a cargo receptor for ferritinophagy, is the target of 9a. Compound 9a blocks ferroptosis by reducing the amount of bioavailable intracellular ferrous iron through disrupting the NCOA4-FTH1 protein-protein interaction. Further studies indicate that 9a directly binds to recombinant protein NCOA4383-522 and effectively blocks the NCOA4383-522-FTH1 interaction. In a rat model of ischemic stroke, 9a significantly ameliorates the ischemic-refusion injury. With the first ligand 9a, this work reveals that NCOA4 is a promising drug target. Additionally, 9a is the first NCOA4-FTH1 interaction inhibitor. This work paves a new road to the development of ferroptosis inhibitors against neurological diseases.
Collapse
|
27
|
Tan Q, Fang Y, Gu Q. Mechanisms of Modulation of Ferroptosis and Its Role in Central Nervous System Diseases. Front Pharmacol 2021; 12:657033. [PMID: 34149412 PMCID: PMC8213017 DOI: 10.3389/fphar.2021.657033] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [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: 01/22/2021] [Accepted: 05/19/2021] [Indexed: 12/19/2022] Open
Abstract
Ferroptosis is a new form of programmed cell death characterized by intracellular iron-dependent accumulation of lipid peroxide and primarily associated with iron metabolism, glutathione-dependent pathway, and coenzyme Q10-dependent pathway. Recent studies demonstrate that ferroptosis is associated with central nervous system (CNS) diseases, such as stroke, Parkinson's disease, Alzheimer's disease, and Huntington's disease. This review summarizes the key regulatory mechanisms of ferroptosis and its role in CNS diseases. These updates may provide novel perspective for the development of therapeutical agents against CNS diseases.
Collapse
Affiliation(s)
| | | | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
28
|
Zhang S, Zhang Y, Fang Y, Chen H, Hao M, Tan Q, Hu C, Zhou H, Xu J, Gu Q. Synthesis and evaluation of andrographolide derivatives as potent anti-osteoporosis agents in vitro and in vivo. Eur J Med Chem 2021; 213:113185. [PMID: 33485256 DOI: 10.1016/j.ejmech.2021.113185] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 12/19/2022]
Abstract
In this work, we found that 14-deoxy-11,12-didehydroandrographolide (2), a derivative of andrographolide (AP, 1), had greatly reduced cytotoxicity compared with AP and exhibited moderate anti-osteoclastogenesis activity. Thirty compounds were synthesized by introducing anti-osteoporosis chemotypes at C-19 of 2. Six of them exhibited stronger inhibition of osteoclastogenesis than AP. Of note, compound 12g displayed the most potent activity with IC50 value of 0.35 μM. The expression levels of osteoclast-specific genes such as TRAcP, CTSK, NFATc1, and MMP-9 were also decreased by 12g treatment. Furthermore, Western blot and immunofluorescence analyses demonstrated that compound 12g inhibited osteoclast differentiation through downregulation of RANKL-induced NF-κB signaling pathway. In an ovariectomized (OVX) female mice model, compound 12g significantly ameliorated bone loss. Therefore, compound 12g exhibited promising in vivo efficacy and low toxicity, indicating its therapeutic potential for the treatment of osteoporosis.
Collapse
Affiliation(s)
- Songxuan Zhang
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yuting Zhang
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yuying Fang
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Hao Chen
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Mengjiao Hao
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qingyun Tan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Chen Hu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| |
Collapse
|
29
|
Shi Y, Jones W, Beatty W, Tan Q, Mecham RP, Kumra H, Reinhardt DP, Gibson MA, Reilly MA, Rodriguez J, Bassnett S. Latent-transforming growth factor beta-binding protein-2 (LTBP-2) is required for longevity but not for development of zonular fibers. Matrix Biol 2020; 95:15-31. [PMID: 33039488 DOI: 10.1016/j.matbio.2020.10.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/04/2020] [Accepted: 10/04/2020] [Indexed: 01/06/2023]
Abstract
Latent-transforming growth factor beta-binding protein 2 (LTBP-2) is a major component of arterial and lung tissue and of the ciliary zonule, the system of extracellular fibers that centers and suspends the lens in the eye. LTBP-2 has been implicated previously in the development of extracellular microfibrils, although its exact role remains unclear. Here, we analyzed the three-dimensional structure of the ciliary zonule in wild type mice and used a knockout model to test the contribution of LTBP-2 to zonule structure and mechanical properties. In wild types, zonular fibers had diameters of 0.5-1.0 micrometers, with an outer layer of fibrillin-1-rich microfibrils and a core of fibrillin-2-rich microfibrils. LTBP-2 was present in both layers. The absence of LTBP-2 did not affect the number of fibers, their diameters, nor their coaxial organization. However, by two months of age, LTBP-2-depleted fibers began to rupture, and by six months, a fully penetrant ectopia lentis phenotype was present, as confirmed by in vivo imaging. To determine whether the seemingly normal fibers of young mice were compromised mechanically, we compared zonule stress/strain relationships of wild type and LTBP-2-deficient mice and developed a quasi-linear viscoelastic engineering model to analyze the resulting data. In the absence of LTBP-2, the ultimate tensile strength of the zonule was reduced by about 50%, and the viscoelastic behavior of the fibers was altered significantly. We developed a harmonic oscillator model to calculate the forces generated during saccadic eye movement. Model simulations suggested that mutant fibers are prone to failure during rapid rotation of the eyeball. Together, these data indicate that LTBP-2 is necessary for the strength and longevity of zonular fibers, but not necessarily for their formation.
Collapse
Affiliation(s)
- Y Shi
- Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, 660 S. Euclid Ave, Box 8096, St. Louis, MO 63110, USA
| | - W Jones
- Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, 660 S. Euclid Ave, Box 8096, St. Louis, MO 63110, USA
| | - W Beatty
- Department of Molecular Microbiology, Washington University, St. Louis, MO, USA
| | - Q Tan
- Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, 660 S. Euclid Ave, Box 8096, St. Louis, MO 63110, USA
| | - R P Mecham
- Department of Cell Biology & Physiology, Washington University, St. Louis, MO, USA
| | - H Kumra
- Department of Anatomy & Cell Biology, and Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - D P Reinhardt
- Department of Anatomy & Cell Biology, and Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - M A Gibson
- Department of Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - M A Reilly
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA; Department of Ophthalmology and Visual Science, The Ohio State University, Columbus, OH, USA
| | - J Rodriguez
- Department of Basic Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA
| | - S Bassnett
- Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, 660 S. Euclid Ave, Box 8096, St. Louis, MO 63110, USA; Department of Cell Biology & Physiology, Washington University, St. Louis, MO, USA.
| |
Collapse
|
30
|
Tan Q, Xu Y. [Theories and strategies of chronic wound treatment]. Zhonghua Shao Shang Za Zhi 2020; 36:798-802. [PMID: 32972064 DOI: 10.3760/cma.j.cn501120-20200728-00361] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In recent years, the incidence of chronic wound has been on the rise. This disease has a high rate of disability and is difficult to treat, therefore its prevention and treatment needs the attention of modern medicine. After decades of development, although advances have been made in the treatment of chronic wounds, many problems still exist. There is still a long way to go to realize the rapid repair of chronic wounds. This paper summarizes the definition of chronic wound, theoretical basis of treatment, and the application of wound dressings and treating techniques, aiming to discuss the theories and strategies of chronic wound treatment with colleagues in this field.
Collapse
Affiliation(s)
- Q Tan
- Department of Plastic Surgery and Burns, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Y Xu
- Department of Plastic Surgery and Burns, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| |
Collapse
|
31
|
Tan Q, Wang Y, Liu S, Luo R, Wang S, Liang T, Yang J, Xing P, Yao J, Wu D, Zhang Z, Dai J, Yu X, Han X, Shi Y. 1945P Distribution of anti-PD1/PDL1 autoantibodies in multiple cancer types and potential biomarker role for anti-PD1 therapy. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
32
|
Lin ZP, Chen SL, Wang JY, Liu F, Tan Q, Peng QF, Zhao JB. [Comparison of the curative effect of transjugular intrahepatic portosystemic shunt with expanded polytetrafluoroethylene-covered stent and drug combined with gastroscopy as the secondary prevention of esophageal -gastric variceal bleeding in portal hypertension]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:672-678. [PMID: 32911906 DOI: 10.3760/cma.j.cn501113-20190723-00266] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the clinical efficacy of transjugular intrahepatic portosystemic shunt (TIPS) with expanded polytetrafluoroethylene (ePTFE)-covered stent and drug combined with gastroscopy as the secondary prevention of esophageal-gastric variceal bleeding in portal hypertension. Methods: Patients with esophageal-gastric variceal bleeding who received TIPS treatment (ePTFE covered stent) or gastroscopy for the first time as the secondary prevention for portal hypertension at Nanfang Hospital of Southern Medical University through March to July 2017 were selected. One year after the operation, liver function changes, ascites remission rates, incidence of hepatic encephalopathy, re-bleeding rate, average hospitalization frequency and expenses, survival time, as well as the TIPS patency conditions were analyzed in the two groups of patients. 2 test, Kaplan-Meier method and Mann-Whitney U test were used to analyze the data. Results: There were 74 and 66 cases in the TIPS and the drug combined gastroscopy group and the follow-up duration (14.57 ± 0.79) was 12-16 months. One year after surgery, the remission rate of ascites in the TIPS group was higher 57.1% (32/56) than that of the drug combined gastroscopy group (0), and the difference was statistically significant (χ(2) = 2 = 36.73, P < 0.01). The cumulative incidence of hepatic encephalopathy at 1, 3, 6, and 12 months after surgery in the TIPS group was 32.4% (24/74), 37.8% (28/74), 40.5% (30/74), and 40.5% (30/74), respectively. The cumulative incidence of hepatic encephalopathy in the drug combined gastroscopy group was 3.0% (2/66), 3.0% (2/66), 3.0% (2/66), and 6.1% (4/66), respectively. Kaplan-Meier analysis showed that the cumulative incidence of hepatic encephalopathy in the TIPS group was higher than that of the drug combined gastroscopy group (χ(2) = 11.29, P < 0.01). The incidence of severe hepatic encephalopathy ( grade III to IV) at 1, 3, 6, and 12 months after surgery in the TIPS group was 2.7% (2/74), 0, 0, and 0, respectively. The incidence of severe hepatic encephalopathy in drug combined gastroscopy group was 0, and there was no statistically significant difference in development of hepatic encephalopathy between the two groups (P > 0.05). The re-bleeding rates of TIPS group and drug combined gastroscopy group were 0 and 27.3% (18/66), respectively, and the difference was statistically significant (χ(2) = 22.42, P < 0.01). There was no death reported during the follow-up period between both groups. The hospitalization frequency times (1.45 ± 0.80) in TIPS group was lower than that of the drug combined gastroscopy group times (3.24 ± 1.80), and the difference was statistically significant (U = -4.52, P < 0.01). Conclusion: In the prevention of esophageal-gastric variceal bleeding, TIPS (ePTFE-covered stent) treatment has the advantages of reducing re-bleeding rate, high ascites remission rate and hospitalizations frequency. In addition, patients treated with TIPS have a higher incidence of hepatic encephalopathy than that of drugs combined with gastroscopy. However, TIPS did not exacerbate the incidence of hepatic encephalopathy, and there was no significant difference in the 1-year survival rate after TIPS and drugs combined with gastroscopy treatment.
Collapse
Affiliation(s)
- Z P Lin
- Department of Interventional Medicine, Sun Yat-sen People's Hospital(Sun Yat-sen University Affiliated Sun Yat-sen Hospital), Zhongshan 528403, China
| | - S L Chen
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Y Wang
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - F Liu
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Q Tan
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Q F Peng
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J B Zhao
- Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
33
|
Li J, Chen SG, Zhao YY, Tan Q. [Determination of thallium in the urine with colloidal palladium as the matrix modifier by graphite furnace atomic absorption Spectrometry]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:219-221. [PMID: 32306699 DOI: 10.3760/cma.j.cn121094-20190722-00316] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To instruct a method of determining thallium in the urine by graphite furnace atomic absorption spectrometry(GF-AAS) with colloidal palladium as the matrix modifier. Methods: Urine samples were first diluted and then determined by GF-AAS with colloidal palladium while using thermal sample injection. Results: The optimum volume of colloidal palladium was 6 μl and the best ashing temperature was 600-800 ℃ while the atomization temperature was 1700-1900 ℃ . This method showed a good linearity relationship when the concentration between 0.33 and 50.0 μg/L while the correlation coefficient of standard curve line was 0.9992, and the detection limit was 0.33 μg/L and the recovery rate was between 92.7% and 102.3% with the intra-day precision in the range of 2.55% to 3.66% and the inter-day precision in the range of 1.77% to 3.85%. Conclusion: This method has the advantages of low detect limit, high sensitivity and good precision, and it can be used in the biological monitoring and emergency detecting of workers exposed to thallium.
Collapse
Affiliation(s)
- J Li
- Foshan Occupational Disease Prevention Institute, Foshan 528000, China
| | - S G Chen
- Foshan Occupational Disease Prevention Institute, Foshan 528000, China
| | - Y Y Zhao
- Foshan Occupational Disease Prevention Institute, Foshan 528000, China
| | - Q Tan
- Foshan Occupational Disease Prevention Institute, Foshan 528000, China
| |
Collapse
|
34
|
Gu YL, Zheng Y, Gao H, Xu H, Tan Q, Li X, Li HX. [Multifocal micronodular pneumocyte hyperplasia: report of a case]. Zhonghua Bing Li Xue Za Zhi 2020; 49:625-627. [PMID: 32486545 DOI: 10.3760/cma.j.cn112151-20190921-00516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y L Gu
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y Zheng
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H Gao
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H Xu
- Department of Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Q Tan
- Department of Respiration, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - X Li
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H X Li
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| |
Collapse
|
35
|
Ren FL, Skipper DC, Elbendary A, Tan Q, Elston DM. Cutaneous manifestations of Langerhans cell histiocytosis in children: a retrospective cohort study of 43 patients. J Eur Acad Dermatol Venereol 2020; 34:e640-e642. [PMID: 32311189 DOI: 10.1111/jdv.16509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- F L Ren
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - D C Skipper
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - A Elbendary
- Department of Dermatology, Kasr Alainy Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Q Tan
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - D M Elston
- Department of Dermatology & Dermatological Surgery, Medical University of South Carolina, Charleston, SC, USA
| |
Collapse
|
36
|
Yang H, Tan Q, Chen GH, Chen JS, Fu Z, Ren FL, Luo XY, Wang H. Plasma retinol as a predictive biomarker of disease activity and response to acitretin monotherapy in children with generalized pustular psoriasis. J Eur Acad Dermatol Venereol 2020; 34:e270-e272. [PMID: 31991497 DOI: 10.1111/jdv.16244] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- H Yang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Q Tan
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - G H Chen
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - J S Chen
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Z Fu
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - F L Ren
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - X Y Luo
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - H Wang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China.,National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
37
|
Situ D, Long H, Tan Q, Luo Q, Wang Z, Jiang G, Rong T. OA13.02 Video-Assisted Thoracoscopic Surgery vs. Thoracotomy for Non-Small Cell Lung Cancer: Survival Outcome of a Randomized Trial. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
38
|
Wang Y, Zhou WM, Fan J, Zhao XH, Wang XL, Du CJ, Liu J, Yang GJ, Li W, Jia XW, Tan Q, Tie YW, Ren YF, Liao P. [Homosexual behavior and related factors among married men who have sex with men in Mianyang city, Sichuan province]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:461-465. [PMID: 31006209 DOI: 10.3760/cma.j.issn.0254-6450.2019.04.017] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the homosexual behavior and related factors among married MSM in Mianyang city. Methods: Between January and October in 2017, a snowball sampling method was adopted to carry out cross-sectional survey through questionnaires plus HIV testing among those MSM in Mianyang city. Logistic regression model was used to analyze homosexual behaviors and related factors among married MSM under study. Statistical analysis was used by EpiData 3.1 and SPSS 19.0 software. Results: A total of 234 MSM participated in this survey. The overall rate of homosexual behavior in these married MSM appeared as 94.9% (222/234). Rate of having anal sex behavior was 94.4% (221/234) in the past 6 months, with rate of condom use as 57.9% (128/221). HIV positive rate was 8.1% (18/222). As for the motives for homosexual behavior after marriage, 87.8% (195/222) were driven by feelings of love, 12.2% (27/222) due to 'releasing pressure'. Proportion of male sex partners would include occasional sex partners (62.2%, 138/222), stable male sex partners (26.1%, 58/222) and stable boyfriends (11.7%, 26/222). Factors from logistic regression analysis showed that homosexual behaviors were related to the factors including education level of senior high school or above vs. education level of junior middle school or below (OR=3.65, 95%CI: 1.33-9.98); local residency over one year vs. the ones having local residency less than one year (OR=23.28, 95%CI:1.67-324.89); having 10 or more friends in the MSM community vs. having below 10 friends in MSM community (OR=4.15, 95%CI: 1.28-13.43); without sex pleasure with spouse vs. having sex pleasure with spouse (OR=3.25, 95%CI: 1.22-8.62); having 2 or more anal sex partners in the past 6 months vs. having less than 2 anal sex partners in the past 6 months (OR=0.28,95%CI: 0.09-0.81). Conclusions: The rate of homosexual behavior and HIV positive rate were high among MSM in Mianyang city. Homosexual behaviors after marriage were influenced by multiple factors among MSM. The motives of homosexual behavior after marriage were driven by feelings of love, the related factors were education level of senior high school or above, local residency over one year, having 10 or more friends in the MSM community and without sex pleasure with spouse. As for the motives of these behaviors was caused by releasing pressure, the related factors was having more than 2 anal sex partners.
Collapse
Affiliation(s)
- Y Wang
- Institute for AIDS/STD Control and Prevention, Mianyang Center for Disease Control and Prevention, Mianyang 621000, China
| | - W M Zhou
- Institute for AIDS/STD Control and Prevention, Mianyang Center for Disease Control and Prevention, Mianyang 621000, China
| | - J Fan
- Mianyang Gay Love Group, Mianyang 621000, China
| | - X H Zhao
- Institute for AIDS/STD Control and Prevention, Mianyang Center for Disease Control and Prevention, Mianyang 621000, China
| | - X L Wang
- Department of AIDS/STD Control and Prevention, Fucheng District Center for Disease Control and Prevention, Mianyang 621000, China
| | - C J Du
- Department of AIDS/STD Control and Prevention, Youxian District Center for Disease Control and Prevention, Mianyang 621000, China
| | - J Liu
- Department of AIDS/STD Control and Prevention, Jiangyou County Center for Disease Control and Prevention, Jiangyou 621700, China
| | - G J Yang
- Department ofAIDS/STD Control and Prevention, Santai County Center for Disease Control and Prevention, Santai 621100, China
| | - W Li
- Department of AIDS/STD Control and Prevention, Anzhou District Center for Disease Control and Prevention, Mianyang 622650, China
| | - X W Jia
- Department of AIDS/STD Control and Prevention, Beichuan Qiang Autonomous County Center for Disease Control and Prevention, Beichuan 622750, China
| | - Q Tan
- Department of AIDS/STD Control and Prevention, Mianyang National High-tech Industrial Development Zone Center for Disease Control and Prevention, Mianyang 621000, China
| | - Y W Tie
- Department of AIDS/STD Control and Prevention, Zitong County Center for Disease Control and Prevention, Zitong 622150, China
| | - Y F Ren
- Department of AIDS/STD Control and Prevention, Yanting County Center for Disease Control and Prevention, Yanting 621600, China
| | - P Liao
- Department of AIDS/STD Control and Prevention, Pingwu County Center for Disease Control and Prevention, Pingwu 622500, China
| |
Collapse
|
39
|
Zhou J, Wang SQ, Lin Y, Zheng DF, Tan Q. [Early diagnosis of pulmonary embolism in patients with skin and soft tissue defects after trauma]. Zhonghua Shao Shang Za Zhi 2019; 35:351-355. [PMID: 31154732 DOI: 10.3760/cma.j.issn.1009-2587.2019.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the early diagnosis method of pulmonary embolism in patients with skin and soft tissue defects after trauma. Methods: From January 2011 to July 2014, 5 patients with skin and soft tissue defects and pulmonary embolism after trauma were admitted to Department of Plastic Surgery and Burns of the Affiliated Drum Tower Hospital of Nanjing University Medical School, including 4 males and 1 female, aged 26-68 years. The medical records of the 5 patients were retrospectively analyzed. Hierarchical screening of patients with suspected pulmonary embolism was performed after admission for 4-45 days. Computed tomography pulmonary angiography (CTPA) was performed immediately in 2 patients who had hemodynamic disorder and were able to tolerate CTPA, and pulmonary embolism was confirmed. Clinical risk assessment was conducted for the other 3 patients who had no obvious hemodynamic disorder and only had clinical manifestations of pulmonary embolism such as chest tightness and dyspnea. Among the 3 patients, two of them were assessed as high risk possibility by clinical risk assessment and diagnosed with pulmonary embolism by CTPA immediately. The other one patient's clinical risk assessment was moderate risk possibility, but D-dimer was positive, and the patient was diagnosed with pulmonary embolism by CTPA immediately. Wound exudation of all patients was collected within 1 week after admission for microbial culture, and wound debridement and skin grafting were performed according to the wound condition. The color Doppler ultrasonography of blood vessel on lower extremity was performed to determine deep venous thrombosis of lower extremity after appearance of symptoms of pulmonary embolism. The patient was immediately given urokinase or recombinant tissue plasminogen activator by intravenous infusion for thrombolysis after definite diagnosis of pulmonary embolism. The activated partial thromboplastin time (APTT) was monitored after treatment, and standardized anticoagulation began when APTT was equal to or lower than 70 seconds. The treatment results of patients, D-dimer measurement value, bed time before definite diagnosis of pulmonary embolism, number of patients underwent wound debridement during hospitalization, definite diagnosis time of pulmonary embolism after wound debridement, and number of patients with deep venous thrombosis of lower extremity and wound infection were recorded. Results: Wounds with skin and soft tissue defects of all patients were completely healed, all skin grafts survived well, pulmonary embolism recovered well after timely treatment, and the trunk and branches of involved pulmonary artery recovered blood supply. The course of disease ranged from 1 month to 3 months. The measurement value of D-dimer was 2.4-31.7 mg/L, and the measurement values of D-dimer of 4 patients were equal to or higher than 5.0 mg/L. The bed time before definite diagnosis of pulmonary embolism was 4-46 days, with an average of 23.2 days. Four patients underwent wound debridement during hospitalization. The definite diagnosis time of pulmonary embolism after the wound debridement was 14-40 days, with an average of 20.5 days. Four patients were diagnosed with deep venous thrombosis of lower extremity. All patients had wound infection, and the bacteria causing wound infection included Pseudomonas aeruginosa of 2 cases, Staphylococcus aureus of 2 cases, and Enterococcus faecalis of 1 case. Conclusions: In the diagnosis process of pulmonary embolism in patients with skin and soft tissue defects after trauma, D-dimer positive, long-term bed rest, experiencing operation during hospitalization, and with deep vein thrombosis and wound infection can be regarded as the key points for diagnosis. When a patient has clinical symptoms of pulmonary embolism and the above conditions, the clinician should promptly perform hierarchical screening, select the corresponding examination to confirm pulmonary embolism, and immediately perform thrombolysis for the patient with pulmonary embolism according to the patient's tolerance, thereby improving patient survival rate.
Collapse
Affiliation(s)
- J Zhou
- Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, China
| | - S Q Wang
- Department of Plastic Surgery and Burns, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Y Lin
- Department of Plastic Surgery and Burns, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - D F Zheng
- Department of Plastic Surgery and Burns, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Q Tan
- Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, China
| |
Collapse
|
40
|
Tan Q, Peng L, Huang Y, Huang W, Bai W, Shi L, Li X, Chen T. Structure-Activity Relationship Analysis on Antioxidant and Anticancer Actions of Theaflavins on Human Colon Cancer Cells. J Agric Food Chem 2019; 67:159-170. [PMID: 30474978 DOI: 10.1021/acs.jafc.8b05369] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The roles of natural products as effective cancer prevention and therapeutic agents have been documented by various studies in recent years, but the action mechanisms and structure-activity relationship need more elucidation. The present study showed that theaflavins (theaflavin and its derivatives, TFs) from black tea caused an inhibitory effect on the proliferation of human colon adenocarcinoma cancer SW480 cells and human colon cancer SW620 cells [half maximal inhibitory concentration (IC50) < 32.0 μM] by the induction of cell cycle arrest but exerted lower toxicity against normal cells with a high safety index (1.89-6.26). Moreover, TFs triggered a decrease in reactive oxygen species in SW480 cells as a result of their excellent radical-scavenging ability (e.g., the IC50 value of TF4 to ABTS• + was 1.91 ± 0.21 μM). More importantly, the structure-activity relationship analysis of TFs exhibited that the galloyl group was an important factor to affect these activities. Taken together, we revealed that the TFs could act as substitutes for natural antioxidants and promising anticancer agents with beneficial influence on human health and then anticipated that this study may provide useful information on the development of therapeutic natural products.
Collapse
Affiliation(s)
| | - Lijiao Peng
- Affiliated Hospital of Guangdong Medical University , Zhanjiang , Guangdong 524000 , People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
41
|
Tan Q. [Challenges for rescue and treatment of mass burns: the experience of rescue and treatment for casualties in August 2nd Kunshan factory aluminum dust explosion accident]. Zhonghua Shao Shang Za Zhi 2018; 34:329-331. [PMID: 29961287 DOI: 10.3760/cma.j.issn.1009-2587.2018.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The Kunshan factory aluminum dust explosion accident in August 2nd, 2014 caused the largest number of serious burn casualties in China in the recent 30 years. With the support of the whole country and the multidisciplinary cooperation, 185 severely burned patients were rescued and treated at 20 hospitals in Jiangsu province and Shanghai with satisfactory results. The rescue and treatment of mass burn is a complicated and systematic project on account of its suddenness, uncertainty, and non-repeatability. The treatment of this explosion accident was reviewed in this paper to explore the treatment model and experience of multidisciplinary cooperation. It is worthy to ponder and explore how to face challenges and strive to improve the treatment level of mass burns.
Collapse
Affiliation(s)
- Q Tan
- Department of Plastic Surgery and Burns, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| |
Collapse
|
42
|
Wang Y, Zhou WM, Fan J, Zhao XH, Wang XL, Du CJ, Liu J, Yang GJ, Li W, Jia XW, Tan Q, Tie YW, Ren YF, Liao P. [Analysis on use of rush poppers and its related factors among men who have sex with men in city and county level of Mianyang]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:1290-1292. [PMID: 30522233 DOI: 10.3760/cma.j.issn.0253-9624.2018.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- Y Wang
- Institute for AIDS/STD Control and Prevention, Mianyang Center for Disease Control and Prevention, Mianyang 621000, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Tan Q, Chen B, Wang Q, Xu W, Wang Y, Lin Z, Luo F, Huang S, Zhu Y, Su N, Jin M, Li C, Kuang L, Qi H, Ni Z, Wang Z, Luo X, Jiang W, Chen H, Chen S, Li F, Zhang B, Huang J, Zhang R, Jin K, Xu X, Deng C, Du X, Xie Y, Chen L. A novel FGFR1-binding peptide attenuates the degeneration of articular cartilage in adult mice. Osteoarthritis Cartilage 2018; 26:1733-1743. [PMID: 30201491 DOI: 10.1016/j.joca.2018.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 11/29/2017] [Revised: 08/13/2018] [Accepted: 08/28/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE We previously reported that genetic ablation of (Fibroblast Growth Factors Receptors) FGFR1 in knee cartilage attenuates the degeneration of articular cartilage in adult mice, which suggests that FGFR1 is a potential targeting molecule for osteoarthritis (OA). Here, we identified R1-P1, an inhibitory peptide for FGFR1 and investigated its effect on the pathogenesis of OA in mice induced by destabilization of medial meniscus (DMM). DESIGN Binding ability between R1-P1 and FGFR1 protein was evaluated by enzyme-linked immuno sorbent assay (ELISA) and molecular docking. Alterations in cartilage were evaluated histologically. The expression levels of molecules associated with articular cartilage homeostasis and FGFR1 signaling were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR), Western blotting and immunohistochemistry (IHC). The chondrocyte apoptosis was detected by terminal-deoxynucleoitidyl transferase mediated nick end labeling (TUNEL) assay. RESULTS R1-P1 had highly binding affinities to human FGFR1 protein, and efficiently inhibited extracellular signal-regulated kinase (ERK)1/2 pathway in mouse primary chondrocytes. In addition, R1-P1 attenuated the IL-1β induced significant loss of proteoglycan in full-thickness cartilage tissue from human femur head. Moreover, this peptide can significantly restore the IL-1β mediated loss of proteoglycan and type II collagen (Col II) and attenuate the expression of matrix metalloproteinase-13 (MMP13) in mouse primary chondrocytes. Finally, intra-articular injection of R1-P1 remarkably attenuated the loss of proteoglycan and the destruction of articular cartilage and decreased the expressions of extracellular matrix (ECM) degrading enzymes and apoptosis in articular chondrocytes of mice underwent DMM surgery. CONCLUSIONS R1-P1, a novel inhibitory peptide for FGFR1, attenuates the degeneration of articular cartilage in adult mice, which is a potential leading molecule for the treatment of OA.
Collapse
MESH Headings
- Animals
- Apoptosis/drug effects
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Experimental/prevention & control
- Cartilage, Articular/drug effects
- Cartilage, Articular/metabolism
- Cartilage, Articular/pathology
- Cells, Cultured
- Chondrocytes/drug effects
- Chondrocytes/pathology
- Drug Evaluation, Preclinical/methods
- Extracellular Matrix/drug effects
- Extracellular Matrix/pathology
- Humans
- MAP Kinase Signaling System/drug effects
- Male
- Mice, Inbred C57BL
- Oligopeptides/pharmacology
- Oligopeptides/therapeutic use
- Osteoarthritis/metabolism
- Osteoarthritis/pathology
- Osteoarthritis/prevention & control
- Proteoglycans/metabolism
- Receptor, Fibroblast Growth Factor, Type 1/antagonists & inhibitors
- Receptor, Fibroblast Growth Factor, Type 1/metabolism
- Tissue Culture Techniques
Collapse
Affiliation(s)
- Q Tan
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - B Chen
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Q Wang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - W Xu
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Y Wang
- College of Bioengineering, Chongqing Institute of Technology, Chongqing 400050, China
| | - Z Lin
- College of Bioengineering, Chongqing Institute of Technology, Chongqing 400050, China
| | - F Luo
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - S Huang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Y Zhu
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - N Su
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - M Jin
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - C Li
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - L Kuang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - H Qi
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Z Ni
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Z Wang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - X Luo
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - W Jiang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - H Chen
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - S Chen
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - F Li
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - B Zhang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - J Huang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - R Zhang
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - K Jin
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - X Xu
- Faculty of Health Sciences, University of Macau, Macau SAR 00853, China
| | - C Deng
- Faculty of Health Sciences, University of Macau, Macau SAR 00853, China
| | - X Du
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
| | - Y Xie
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
| | - L Chen
- Department of Rehabilitation Medicine, Laboratory for the Rehabilitation of Traumatic Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
| |
Collapse
|
44
|
Tan Q, Tu HW, Gu CH, Li XD, Li RZ, Wang M, Chen SG, Cheng YJ, Liu YM. [Spatial distribution of occupational disease prevalence in Guangzhou and Foshan city by geographic information system]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:854-857. [PMID: 29316761 DOI: 10.3760/cma.j.issn.1001-9391.2017.11.014] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the occupational disease spatial distribution characteristics in Guangzhou and Foshan city in 2006-2013 with Geographic Information System and to provide evidence for making control strategy. Methods: The data on occupational disease diagnosis in Guangzhou and Foshan city from 2006 through 2013 were collected and linked to the digital map at administrative county level with Arc GIS12.0 software for spatial analysis. Results: The maps of occupational disease and Moran's spatial autocor-relation analysis showed that the spatial aggregation existed in Shunde and Nanhai region with Moran's index 1.727, -0.003. Local Moran's I spatial autocorrelation analysis pointed out the "positive high incidence re-gion" and the "negative high incidence region" during 2006~2013. Trend analysis showed that the diagnosis case increased slightly then declined from west to east, increase obviously from north to south, declined from? southwest to northeast, high in the middle and low on both sides in northwest-southeast direction. Conclusions: The occupational disease is obviously geographical distribution in Guangzhou and Foshan city. The corresponding prevention measures should be made according to the geographical distribution.
Collapse
Affiliation(s)
- Q Tan
- Foshan Institute of Occupational Disease Prevention and Control. Foshan Guangdong 528000. China
| | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Situ D, Long H, Tan Q, Luo Q, Wang Z, Jiang G, Rong T. OA06.02 Video-Assisted Thoracoscopic Surgery vs. Thoracotomy for Non-Small Cell Lung Cancer: Oncologic Outcome of a Randomized Trial. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
46
|
Han X, Tan Q, Xiong T, Yang S, Dai W, Lin D, Zhou Y, Lin H, Shi Y. P2.17-13 Genome-Wide Copy Number Alterations Profiling Predict Efficacy of Resected Stage II-IIIA Lung Adenocarcinoma. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
47
|
Shou BM, Tan Q, Sun BW, Nie LJ, Shen YM, Lyu GZ, Zhang Y, Lin W, Wang ZX, Yu Y, Zhao YH, Wang DW, Yao J, Xie EF, Zheng DF, Xiao SC, Zhang HW, Hong ZJ, Wang L, Xie WZ. [Experience of wound treatment on extremely severe mass burn patients involved in August 2nd Kunshan factory aluminum dust explosion accident]. Zhonghua Shao Shang Za Zhi 2018; 34:339-342. [PMID: 29961289 DOI: 10.3760/cma.j.issn.1009-2587.2018.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore experience of wound treatment of extremely severe mass burn patients involved in August 2nd Kunshan factory aluminum dust explosion accident. Methods: On August 2nd, 2014, 98 extremely severe burn mass patients involved in August 2nd Kunshan factory aluminum dust explosion accident were admitted to 20 hospitals in China. The patients with complete medical record were enrolled in the study and divided into microskin graft group with 56 patients and Meek skin graft group with 42 patients. Split-thickness skin in area of residual skin were resected to repair wounds of patients in microskin graft group and Meek skin graft group by microskin grafting and Meek miniature skin grafting, respectively. The residual wound size on 28 days post injury and wound infection after skin grafting of patients in the two groups, and position of donor site of all patients were retrospectively analyzed. Data were processed with t test and chi-square test. Results: The size of residual wound of patients in Meek skin graft group on 28 days post injury was (59±13)% total body surface area (TBSA), which was obviously smaller than that in microskin graft group [(70±14)%TBSA, t=4.379, P<0.05]. Twenty-nine patients in microskin graft group and 11 patients in Meek skin graft group suffered from obvious wound infection after skin grafting. Wounds of patients in two groups were repaired with residual skin around wound in head, trunk, groin, armpit, and uncommon donor sites of scrotum (4 patients), vola (10 patients), and toe or finger web (8 patients). Conclusions: Meek skin graft is the first choice for wound repair of extremely severe burn mass patients, with faster wound healing, less wound infection. Uncommon donor sites of scrotum, vola, and toe or finger web can also be used for wound repair in case of lack of skin.
Collapse
Affiliation(s)
- B M Shou
- Department of Burns and Plastic Surgery, Nanjing Fire Service Hospital, Nanjing 210003, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Ding Z, Wang K, Li J, Tan Q, Tan W, Guo G. Association between glutathione S‐transferase gene M1 and T1 polymorphisms and chronic obstructive pulmonary disease risk: A meta‐analysis. Clin Genet 2018; 95:53-62. [PMID: 29704242 DOI: 10.1111/cge.13373] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Z. Ding
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - K. Wang
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - J. Li
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - Q. Tan
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - W. Tan
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - G. Guo
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| |
Collapse
|
49
|
Wang W, Xu C, Tan Q, Song Z, Zhuang W, Chen Y, Xiong L, Chen G, Fang M, Lv T, Song Y. P3.02-065 Lung Adenocarcinoma Patient with EGFR Kinase Domain Duplication (KDD) and Its Response to Icotinib: A Case Report. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
50
|
Tang CQ, Li JQ, Shou BM, Pan BH, Chen TS, Xiao YQ, Zheng XP, Xiao SC, Tan Q, Xia ZF. Epidemiology and outcomes of bloodstream infections in 177 severe burn patients from an industrial disaster: a multicentre retrospective study. Clin Microbiol Infect 2017. [PMID: 28642142 DOI: 10.1016/j.cmi.2017.06.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 12/29/2022]
Abstract
OBJECTIVES To determine the characteristics of bloodstream infections (BSIs) and to evaluate the impact of BSIs on mortality in severe burn patients. METHODS A retrospective observational study was conducted in 20 tertiary hospitals. A total of 185 patients who experienced a massive dust explosion in eastern China were included. RESULTS After exclusion, 177 patients were analysed. The median total body surface area (TBSA) burned was 95% (interquartile range 85%-98%). Inhalation injuries occurred in 97.2%. The overall 90-day mortality was 35% (62/177). During the study period, 120 (67.8%) patients developed 253 episodes of BSI with 323 unique causative pathogens. Sixty-six episodes were polymicrobial infections. Catheter-related BSIs (CRBSIs) accounted for 41.5% of the episodes. Acinetobacter baumannii (19.5%), Klebsiella pneumoniae (13.9%) and Candida (12.7%) were the most common organisms. Antimicrobial resistance was found in 63.5% of the isolates, particularly in Gram-negative bacteria. Patients who developed BSIs had a greater illness severity at admission to the intensive care unit, and worse outcomes. After adjusting for demographics, severity of illness and treatment characteristics in a multivariate logistic model, there was a trend toward BSI increasing the risk of 90-day mortality (adjusted OR 3.4; 95% CI 0.9-12.9; p=0.069). In subgroup analyses, CRBSIs (adjusted OR 5.7; 95% CI 1.3-24.9; p=0.021 versus no BSI) and polymicrobial BSIs (adjusted OR 6.1; 95% CI 1.3-28.1; p=0.020 versus no BSI) had greater risk of 90-day mortality. CONCLUSIONS A strikingly high rate of BSIs was observed in severe burn patients. Gram-negative organisms and fungi were the leading causes. CRBSIs and polymicrobial BSIs were associated with high mortality.
Collapse
Affiliation(s)
- C Q Tang
- Department of Burn Surgery, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - J Q Li
- Department of Burn Surgery, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - B M Shou
- Department of Burns and Plastic Surgery, The Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu, China
| | - B H Pan
- Department of Burn Surgery, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - T S Chen
- Department of Burn Surgery, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Y Q Xiao
- Department of Burn Surgery, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - X P Zheng
- Department of Burn Surgery, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - S C Xiao
- Department of Burn Surgery, Changhai Hospital, The Second Military Medical University, Shanghai, China.
| | - Q Tan
- Department of Burns and Plastic Surgery, Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu, China.
| | - Z F Xia
- Department of Burn Surgery, Changhai Hospital, The Second Military Medical University, Shanghai, China.
| |
Collapse
|