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Zhang H, Gao J, Wang H, Liu M, Lu S, Xu H, Tang W, Zheng G. Novel likely pathogenic variant in the EYA1 gene causing Branchio oto renal syndrome and the exploration of pathogenic mechanisms. BMC Med Genomics 2024; 17:89. [PMID: 38627775 PMCID: PMC11020176 DOI: 10.1186/s12920-024-01858-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 03/29/2024] [Indexed: 04/19/2024] Open
Abstract
OBJECTIVE Branchio-oto-renal syndrome (BOR, OMIM#113,650) is a rare autosomal dominant disorder that presents with a variety of symptoms, including hearing loss (sensorineural, conductive, or mixed), structural abnormalities affecting the outer, middle, and inner ear, branchial fistulas or cysts, as well as renal abnormalities.This study aims to identify the pathogenic variants by performing genetic testing on a family with Branchio-oto-renal /Branchio-otic (BO, OMIM#602,588) syndrome using whole-exome sequencing, and to explore possible pathogenic mechanisms. METHODS The family spans 4 generations and consists of 9 individuals, including 4 affected by the BOR/BO syndrome. Phenotypic information, including ear malformation and branchial cleft, was collected from family members. Audiological, temporal bone imaging, and renal ultrasound examinations were also performed. Whole-exome sequencing was conducted to identify candidate pathogenic variants and explore the underlying molecular etiology of BOR/BO syndrome by minigene experiments. RESULTS Intra-familial variability was observed in the clinical phenotypes of BOR/BO syndrome in this family. The severity and nature of hearing loss varied in family members, with mixed or sensorineural hearing loss. The proband, in particular, had profound sensorineural hearing loss on the left and moderate conductive hearing loss on the right. Additionally, the proband exhibited developmental delay, and her mother experienced renal failure during pregnancy and terminated the pregnancy prematurely. Genetic testing revealed a novel heterozygous variant NM_000503.6: c.639 + 3 A > C in the EYA1 gene in affected family members. In vitro minigene experiments demonstrated its effect on splicing. According to the American College of Medical Genetics (ACMG) guidelines, this variant was classified as likely pathogenic. CONCLUSION This study highlights the phenotypic heterogeneity within the same family, reports the occurrence of renal failure and adverse pregnancy outcomes in a female patient at reproductive age with BOR syndrome, and enriches the mutational spectrum of pathogenic variants in the EYA1 gene.
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Affiliation(s)
- Hui Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, 710000, Xi'an, China
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Zhengzhou University, 450014, Zhengzhou, China
| | - Jian Gao
- National Center for International Research in Cell and Gene Therapy, Sino-British Research Centre for Molecular Oncology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, 450052, Zhengzhou, China
| | - Hanjun Wang
- BGI College and Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, 450052, Zhengzhou, China
| | - Mengli Liu
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, 450052, Zhengzhou, China
| | - Shuangshuang Lu
- National Center for International Research in Cell and Gene Therapy, Sino-British Research Centre for Molecular Oncology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, 450052, Zhengzhou, China
| | - Hongen Xu
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, 450052, Zhengzhou, China
| | - Wenxue Tang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Zhengzhou University, 450014, Zhengzhou, China
| | - Guoxi Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, 710000, Xi'an, China.
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Ma R, Tian L, Wang Y, Sun S, Zhang J, Lou M, Hu Z, Gong M, Yang F, Zheng G, Dong J, Zhang Y. Comparative investigation of transport and deposition of nebulized particles in nasal airways following various middle turbinectomy. Rhinology 2024; 62:223-235. [PMID: 38010118 DOI: 10.4193/rhin23.265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
BACKGROUND Topical intranasal medication is required following functional endoscopic sinus surgery (FESS). The optimal particle size of transnasal nebulization aimed at the sinonasal cavities is not conclusive. The current study aims to evaluate the effect of particle size and various surgery scope of middle turbinectomy (MT) on post-full FESS drug delivery to the sinonasal cavities. METHODS Sinonasal reconstructions were performed from post-full FESS CT scans in 6 chronic rhinosinusitis with nasal polyps (CRSwNP) patients. Four additional models representing alternative surgery scopes of MT were established from each post-FESS reconstruction for simulation data comparison. Airflow and particle deposition of nebulized delivery were simulated via computational fluid dynamics (CFD) and validated through in vitro experiments. The optimal particle sizes reaching a deposition of at least 75% of the maximum in the targeted regions were identified. RESULTS The drug deposition rate onto the targeted regions increased following MT, with the greatest deposition following posterior MT (P-MT). Droplets in the range of 18-26 μm reached a deposition of larger than 75% of the maximum onto the targeted regions. Drug delivery rate in the sinonasal cavities varied significantly among individuals and across different types of MT with varying surgical scopes. CONCLUSIONS This study is the first to investigate the effect of various surgery scope on drug delivery by transnasal nebulization to the sinonasal cavities. The findings strongly affirm the vast potential of transnasal nebulization as an effective post-FESS treatment option. Moreover, it emphasizes that the drug delivery process via atomizers to the nasal cavity and paranasal sinuses is highly sensitive to the particle size.
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Affiliation(s)
- R Ma
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - L Tian
- School of Engineering, Mechanical and Automotive, RMIT University, Bundoora, VIC, Australia
| | - Y Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - S Sun
- Zhejiang Cuize Pharmatech Co., Ltd, China
| | - J Zhang
- Department of Medical Imaging Department, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - M Lou
- Department of Otolaryngology Head and Neck Surgery, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Z Hu
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - M Gong
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - F Yang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - G Zheng
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - J Dong
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne, Australia; First Year College, Victoria University, Footscray Park Campus, Footscray, Australia
| | - Y Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Hu Z, Cheng S, Sun S, Wang Y, Lou M, Ma R, Gong M, Yang F, Zheng G, Zhang Y, Dong J. Numerical and experimental evaluation of nasopharyngeal aerosol administration methods in children with adenoid hypertrophy. Int J Pharm 2024; 653:123906. [PMID: 38365069 DOI: 10.1016/j.ijpharm.2024.123906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/03/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Administering aerosol drugs through the nasal pathway is a common early treatment for children with adenoid hypertrophy (AH). To enhance therapeutic efficacy, a deeper understanding of nasal drug delivery in the nasopharynx is essential. This study uses an integrated experimental, numerical modelling approach to investigate the delivery process of both the aerosol mask delivery system (MDS) and the bi-directional delivery system (BDS) in the pediatric nasal airway with AH. The combined effect of respiratory flow rates and particle size on delivery efficiency was systematically analyzed. The results showed that the nasopharyngeal peak deposition efficiency (DE) for BDS was approximately 2.25-3.73 times higher than that for MDS under low-flow, resting and high-flow respiratory conditions. Overall nasopharyngeal DEs for MDS were at a low level of below 16 %. For each respiratory flow rate, the BDS tended to achieve higher peak DEs (36.36 % vs 9.74 %, 37.80 % vs 14.01 %, 34.58 % vs 15.35 %) at smaller particle sizes (15 µm vs 17 µm, 10 µm vs 14 µm, 6 µm vs 9 µm). An optimal particle size exists for each respiratory flow rate, maximizing the drug delivery efficiency to the nasopharynx. The BDS is more effective in delivering drug aerosols to the nasal cavity and nasopharynx, which is crucial for early intervention in children with AH.
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Affiliation(s)
- Zhenzhen Hu
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China; School of Engineering, RMIT University, Bundoora, VIC 3083, Australia; Institute for Sustainable Industries & Liveable Cities, Victoria University, PO Box 14428, Melbourne, VIC 8001, Australia
| | - Shaokoon Cheng
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW 2109, Australia
| | - Siping Sun
- Zhejiang Cuize Pharmtech Co. Ltd., Hangzhou, Zhejiang 310000, China
| | - Yusheng Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Miao Lou
- Department of Otorhinolaryngology Head and Neck Surgery, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, China
| | - Ruiping Ma
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Minjie Gong
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Feilun Yang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Guoxi Zheng
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Ya Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China.
| | - Jingliang Dong
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China; Institute for Sustainable Industries & Liveable Cities, Victoria University, PO Box 14428, Melbourne, VIC 8001, Australia; First Year College, Victoria University, Footscray Park Campus, Footscray, VIC 3011, Australia.
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Huang Z, Liu C, Zheng G, Zhang L, Zhong Q, Zhang Y, Zhao W, Qi Y. Correction to "Articular Cartilage Regeneration via Induced Chondrocyte Autophagy by Sustained Release of Leptin Inhibitor from Thermo-Sensitive Hydrogel Through STAT3/REDD1/mTORC1 Cascade". Adv Healthc Mater 2024; 13:e2304470. [PMID: 38279600 DOI: 10.1002/adhm.202304470] [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: 01/28/2024]
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Ma R, Hu Z, Tian L, Zheng G, Wang Y, Chen X, Lou M, Gong M, Wang B, Yang F, Dong J, Zhang Y. Numerical and experimental analysis of pollen inhalation exposure in nasal airways following various middle turbinectomy. Sci Total Environ 2024; 907:168156. [PMID: 37898207 DOI: 10.1016/j.scitotenv.2023.168156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
BACKGROUND Middle turbinectomy (MT) has always been controversial. MT significantly alters the anatomy and redistributes the inhaled air. The current study is designed to quantify the effect of MT with varying resection volumes on airflow and associated pollen inhalation exposure characteristics in the nasal airways. METHODS Six realistic models following bilateral comprehensive Functional Endoscopic Sinus Surgery (FESS) deriving from CT images were constructed and their corresponding post-MT models with four types of MT procedures were virtually conducted. Inhalation exposure to pollen particles was simulated by the Computational Fluid-Particle Dynamics (CFPD) approach and validated through in vitro experiments. RESULTS Following the excision of the middle turbinate, a significant escalation in airflow was observed within the upper-middle region of the nasal cavities. Pollen deposition was observed to be more prominent in the nasal septum, laryngopharynx, and maxillary sinus, varying with the types of MT procedures. Notably, particles with diameters smaller than 50 μm exhibited two distinct "high peaks" and three "small peaks" within the nasal airways. CONCLUSION MT resulted in increased airflow volume within the upper-middle region of the nasal cavities. Following MT, notable shifts in pollen particle deposition hot spots were observed, transitioning from the nasal vestibule, nasal septum, and middle meatus to the nasal septum and laryngopharynx. These findings are anticipated to contribute valuable perspectives on pollen inhalation exposure risk assessments following diverse MT surgical interventions.
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Affiliation(s)
- Ruiping Ma
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China
| | - Zhenzhen Hu
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China
| | - Lin Tian
- School of Engineering - Mechanical and Automotive, RMIT University, Bundoora, VIC, Australia
| | - Guoxi Zheng
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China
| | - Yusheng Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China
| | - Xiaole Chen
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210046, China
| | - Miao Lou
- Department of Otolaryngology Head and Neck Surgery, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710021, China
| | - Minjie Gong
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China
| | - Botao Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China
| | - Feilun Yang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China
| | - Jingliang Dong
- Institute for Sustainable Industries & Liveable Cities, Victoria University, PO Box 14428, Melbourne, VIC 8001, Australia; First Year College, Victoria University, Footscray Park Campus, Footscray, VIC 3011, Australia.
| | - Ya Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710000, China.
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Xu D, Fu J, Liu X, Hong Y, Chen X, Li S, Hou J, Zhang K, Zhou C, Zeng C, Zheng G, Wu H, Wang T. ELABELA-APJ Axis Enhances Mesenchymal Stem Cell Proliferation and Migration via the METTL3/PI3K/AKT Pathway. Acta Naturae 2024; 16:111-118. [PMID: 38698964 PMCID: PMC11062101 DOI: 10.32607/actanaturae.17863] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/13/2024] [Indexed: 05/05/2024] Open
Abstract
Mesenchymal stem cells (MSCs) possess a strong therapeutic potential in regenerative medicine. ELABELA (ELA) is a 32 amino acid peptide that binds to the apelin peptide jejunum receptor (APJ) to regulate cell proliferation and migration. The aim of this study was to investigate the function of ELA vis-a-vis the MSC proliferation and migration, and further explore the underlying mechanism. We demonstrated that the exogenous supplement of ELA boosts the proliferation and migration ability of MSCs, alongside improved in vitro cell viability. These capabilities were rendered moot upon APJ knockdown. In addition, ELA (5-20 μM) was shown to upregulate the expression of METTL3 in a concentrationdependent pattern, a capacity which was suppressed by APJ reduction, whereas the downregulation of METTL3 expression blocked the beneficial effects induced by ELA. ELA was also observed to upregulate the phosphorylation level of AKT. This ELA-induced activation of the PI3K/AKT pathway, however, is inhibited with knockdown of METTL3. Our data indicate that ELA could act as a promoter of MSC proliferation and migration in vitro through the APJ receptor, something which might be attributed to the activation of the METTL3/PI3K/AKT signaling pathway. Therefore, ELA is a candidate for optimizing MSC-based cell therapy, while METTL3 is a potential target for its promoting action on MSCs.
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Affiliation(s)
- D. Xu
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
| | - J. Fu
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
| | - X. Liu
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
- Department of Emergency, the Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, 510120 China
| | - Y. Hong
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
| | - X. Chen
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
| | - S. Li
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
| | - J. Hou
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
- Department of Emergency, the Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, 510120 China
| | - K. Zhang
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
- Department of Emergency, the Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, 510120 China
| | - C. Zhou
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
| | - C. Zeng
- Department of Emergency, the Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, 510120 China
| | - G. Zheng
- Department of Emergency, the Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, 510120 China
| | - H. Wu
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
| | - T. Wang
- Department of Emergency, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518003 China
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Zhang Y, Hu Z, Wang Y, Lou M, Ma R, Gong M, Dong J, Zheng G, Wang B. Numerical investigation of nanoparticle deposition in the olfactory region among pediatric nasal airways with adenoid hypertrophy. Comput Biol Med 2023; 167:107587. [PMID: 37890422 DOI: 10.1016/j.compbiomed.2023.107587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 09/28/2023] [Accepted: 10/15/2023] [Indexed: 10/29/2023]
Abstract
To understand inhaled nanoparticle transport and deposition characteristics in pediatric nasal airways with adenoid hypertrophy (AH), with a specific emphasis on the olfactory region, virtual nanoparticle inhalation studies were conducted on anatomically accurate child nasal airway models. The computational fluid-particle dynamics (CFPD) method was employed, and numerical simulations were performed to compare the airflow and nanoparticle deposition patterns between nasal airways with nasopharyngeal obstruction before adenoidectomy and healthy nasal airways after virtual adenoidectomy. The influence of different inhalation rates and exhalation phase on olfactory regional nanoparticle deposition features was systematically analyzed. We found that nasopharyngeal obstruction resulted in significant uneven airflow distribution in the nasal cavity. The deposited nanoparticles were concentrated in the middle meatus, septum, inferior meatus and nasal vestibule. The deposition efficiency (DE) in the olfactory region decreases with increasing nanoparticle size (1-10 nm) during inhalation. After adenoidectomy, the pediatric olfactory region DE increased significantly while nasopharynx DE dramatically decreased. When the inhalation rate decreased, the deposition pattern in the olfactory region significantly altered, exhibiting an initial rise followed by a subsequent decline, reaching peak deposition at 2 nm. During exhalation, the pediatric olfactory region DE was substantially lower than during inhalation, and the olfactory region DE in the pre-operative models were found to be significantly higher than that of the post-operative models. In conclusions, ventilation and particle deposition in the olfactory region were significantly improved in post-operative models. Inhalation rate and exhalation process can significantly affect nanoparticle deposition in the olfactory region.
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Affiliation(s)
- Ya Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, China
| | - Zhenzhen Hu
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, China; School of Engineering, RMIT University, Bundoora, VIC, 3083, Australia
| | - Yusheng Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, China
| | - Miao Lou
- Department of Otorhinolaryngology Head and Neck Surgery, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, 710068, China
| | - Ruiping Ma
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, China
| | - Minjie Gong
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, China
| | - Jingliang Dong
- Institute for Sustainable Industries & Liveable Cities, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia; First Year College, Victoria University, Footscray Park Campus, Footscray, VIC, 3011, Australia.
| | - Guoxi Zheng
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, China.
| | - Botao Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, China.
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Xia C, Zhu K, Zhang Y, Chen J, Yu C, Gao T, Zheng G. Serum exosome-derived miR-146a-3p promotes macrophage M2 polarization in allergic rhinitis by targeting VAV3 via PI3K/AKT/mTOR pathway. Int Immunopharmacol 2023; 124:110997. [PMID: 37783052 DOI: 10.1016/j.intimp.2023.110997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/10/2023] [Accepted: 09/24/2023] [Indexed: 10/04/2023]
Abstract
BACKGROUND Our previous study showed that miR-146a-3p was elevated in serum exosomes of allergic rhinitis (AR) patients, but the underlying mechanisms were unclarified. This study was to investigate the impact of exosome-derived miR-146a-3p on macrophage polarization in the pathology of AR. METHOD We detected the expression of miR-146a-3p in nasal tissues of AR patients and healthy controls (HCs), and investigated its correlation with macrophage polarization markers. The impact of miR-146a-3p derived from AR serum exosomes on macrophage polarization was examined. Transcriptome sequencing was performed on macrophages treated with a miR-146a-3p inhibitor, and target genes of miR-146a-3p were explored through a combination of bioinformatics analysis and experimental validation. RESULTS The expressions of miR-146a-3p and macrophage polarization markers were increased in the AR nasal tissues, and a positive association was observed between the expressions of miR-146a-3p and the levels of CD163 and CD206. The AR serum exosomes could be uptake by macrophages, and promote M2 polarization and cytokine secretions. Mechanistically, miR-146a-3p regulation could impact both macrophage M2 polarization and cytokine secretion. Inhibition of miR-146a-3p altered the gene transcriptions within macrophages. Bioinformatics analysis and clinical pathological specimen research confirmed that VAV3 was a target gene of miR-146a-3p, and it exerted a detrimental effect on macrophage M2 polarization via the PI3K/AKT/mTOR pathway. Functional recovery experiments and dual-luciferase reporter gene assays confirmed that miR-146a-3p could selectively target and inhibit the expression of VAV3, thereby promoting macrophage M2 polarization through the PI3K/AKT/mTOR pathway. CONCLUSION Serum exosome-derived miR-146a-3p facilitated macrophage M2 polarization in AR by targeting VAV3 through the PI3K/AKT/mTOR pathway. These findings implied that miR-146a-3p and VAV3 could serve as potential targets for the development of novel therapeutic strategies in AR management.
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Affiliation(s)
- Cui Xia
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Kang Zhu
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Yanni Zhang
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Jingguo Chen
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Chao Yu
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Tianxi Gao
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Guoxi Zheng
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China.
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Hu Z, Dong J, Lou M, Zhang J, Ma R, Wang Y, Gong M, Wang B, Tong Z, Ren H, Zheng G, Zhang Y. Effect of different degrees of adenoid hypertrophy on pediatric upper airway aerodynamics: a computational fluid dynamics study. Biomech Model Mechanobiol 2023; 22:1163-1175. [PMID: 37256522 DOI: 10.1007/s10237-023-01707-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 02/22/2023] [Indexed: 06/01/2023]
Abstract
To improve the diagnostic accuracy of adenoid hypertrophy (AH) in children and prevent further complications in time, it is important to study and quantify the effects of different degrees of AH on pediatric upper airway (UA) aerodynamics. In this study, based on computed tomography (CT) scans of a child with AH, UA models with different degrees of obstruction (adenoidal-nasopharyngeal (AN) ratio of 0.9, 0.8, 0.7, and 0.6) and no obstruction (AN ratio of 0.5) were constructed through virtual surgery to quantitatively analyze the aerodynamic characteristics of UA with different degrees of obstruction in terms of the peak velocity, pressure drop (△P), and maximum wall shear stress (WSS). We found that two obvious whirlpools are formed in the anterior upper part of the pediatric nasal cavity and in the oropharynx, which is caused by the sudden increase in the nasal cross-section area, resulting in local flow separation and counterflow. In addition, when the AN ratio was ≥ 0.7, the airflow velocity peaked at the protruding area in the nasopharynx, with an increase 1.1-2.7 times greater than that in the nasal valve area; the △P in the nasopharynx was significantly increased, with an increase 1.1-6.8 times greater than that in the nasal cavity; and the maximum WSS of the posterior wall of the nasopharynx was 1.1-4.4 times larger than that of the nasal cavity. The results showed that the size of the adenoid plays an important role in the patency of the pediatric UA.
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Affiliation(s)
- Zhenzhen Hu
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Jingliang Dong
- Institute for Sustainable Industries & Liveable Cities, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
- First Year College, Victoria University, Footscray Park Campus, Footscray, VIC, 3011, Australia
- School of Engineering, RMIT University, Bundoora, VIC, 3083, Australia
| | - Miao Lou
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Jingbin Zhang
- Department of Imaging, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ruiping Ma
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Yusheng Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Minjie Gong
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Botao Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Zhenbo Tong
- School of Energy and Environment, Southeast University, Nanjing, China
| | - Hongxian Ren
- School of Energy and Environment, Southeast University, Nanjing, China
| | - Guoxi Zheng
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China.
| | - Ya Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China.
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Wang ZY, Zheng G, Chen W, Chen Q, Wang YJ, Li YQ, Gou XL, Tang KL, Tao X. [Efficacy of Hintermann calcaneal lengthening osteotomy for flexible flatfoot]. Zhonghua Yi Xue Za Zhi 2023; 103:1490-1495. [PMID: 37198112 DOI: 10.3760/cma.j.cn112137-20221008-02089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Objective: To investigate the clinical efficacy of Hintermann osteotomy (H-LCL) for flexible flatfoot. Methods: A follow-up study. Clinical data of 30 patients with flexible flatfoot treated with H-LCL operation from January 2020 to December 2021 in Sports Medical Center of the First Affiliated Hospital of Army Medical University were retrospectively analyzed. There were 8 males and 22 females, with a mean age of (39.0±15.2) years. The mean time from symptom onset to the diagnosis[M(Q1,Q3)]was 24.0 (5.5, 102.0) months. The functional and imaging scores of the patients before and after the last follow-up were compared to evaluate the clinical efficacy of the operation. The functional scores included American Orthopedic Foot and Ankle Society (AOFAS) score, visual analogue scale (VAS) of pain, pain interference (PI) and physical function (PF) index in Patient-Reported Outcomes Measurement Information System (PROMIS). And the imaging scores included Meary's angle, calcaneal pitch angle, calcaneal valgus angle and talonavicular coverage angle. Results: The mean operation time was (82.3±24.4) min, and the follow-up periods was (17.9±6.9) months. At the last follow-up, VAS of pain [M(Q1, Q3)] decreased from 5 (4, 6) to 2 (1, 2); PI decreased from 59.8±5.0 to 44.6±5.7; AOFAS increased from 65.2±10.0 to 85.8±3.3; PF increased from 50 (48.5,51.0) to 58.5 (54.0, 66.0); Meary's angle (antero-posterior image) decreased from 15.7° (10.1°, 29.2°) to 3.9° (2.6°, 5.3°); Meary's angle (lateral image) decreased from 13.5°±6.8° to 4.4°±2.6°; calcaneal pitch angle increased from 14.0°±3.3° to 18.6°±4.2°; calcaneal valgus angle decreased from 12.6°±7.3° to 4.3°±2.5°; and talonavicular coverage angle decreased from 20.9°±10.7° to 7.7°±5.2°. The up-mentioned parameters were all improved statistically significant at the last follow-up when compared with those before the operation (all P<0.05). Conclusion: H-LCL brings a significant improvement of clinical outcome scores and good radiological correction of flatfoot deformities in correcting flexible flatfoot, it conforms to the anatomical characteristics of the subtalar joint.
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Affiliation(s)
- Z Y Wang
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - G Zheng
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - W Chen
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - Q Chen
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - Y J Wang
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - Y Q Li
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - X L Gou
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - K L Tang
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - X Tao
- Sports Medicine Center, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China
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Zheng G, Li FY, Wang X, Zhu DQ, Zhao ZL, Guo Y. [Correlation analysis and benchmark dose study on bone metabolic biochemical index of low doses of exposed hydrogen fluoride workers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:198-203. [PMID: 37006145 DOI: 10.3760/cma.j.cn121094-20220328-00152] [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] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Objective: To analyze correlation of occupational hydrogen fluoride exposure to low doses of bone metabolism index through occupational epidemiological investigation and benchmark dose calculation. Methods: In May 2021, using cluster sampling method, 237 workers exposed to hydrogen fluoride in a company were selected as the contact group, and 83 workers not exposed to hydrogen fluoride in an electronics production company were selected as the control group. The external exposure dose and urinary fluoride concentration, blood and urine biochemical indicators of the workers was measured.The relationship between external dose and internal dose of hydrogen fluoride was analyzed. The external dose, urinary fluoride was used as exposure biomarkers, while serum osteocalcin (BGP), serum alkaline phosphatase (AKP) and urinary hydroxyproline (HYP) were used as effect biomarkers for bone metabolism of hydrogen fluoride exposure. The benchmark dose calculation software (BMDS1.3.2) was used to calculate benchmark dose (BMD) . Results: Urine fluoride concentration in the contact group was correlated with creatinine-adjusted urine fluoride concentration (r=0.69, P=0.001). There was no significant correlation between the external dose of hydrogen fluoride and urine fluoride in the contact group (r=0.03, P=0.132). The concentrations of urine fluoride in the contact group and the control group were (0.81±0.61) and (0.45±0.14) mg/L, respectively, and the difference between the two groups was statistically significant (t=5.01, P=0.025). Using BGP, AKP and HYP as effect indexes, the urinary BMDL-05 values were 1.28, 1.47 and 1.08 mg/L, respectively. Conclusion: Urinary fluoride can sensitively reflect the changes in the effect indexes of biochemical indexes of bone metabolism. BGP and HYP can be used as early sensitive effect indexes of occupational hydrogen fluoride exposure.
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Affiliation(s)
- G Zheng
- Occupational Health Guidance Center, Shanghai Institute of Occupational Disease for Chemical Industry, Shanghai 200041, China
| | - F Y Li
- Business Department, Hefei Kanghong Occupational Health Medical Examination Center, Hefei 230088, China
| | - X Wang
- Central Laboratory, Shanghai Institute of Occupational Disease for Chemical Industry, Shanghai 200041, China
| | - D Q Zhu
- Health Care Center, Shanghai Institute of Occupational Disease for Chemical Industry, Shanghai 200041, China
| | - Z L Zhao
- Central Laboratory, Shanghai Institute of Occupational Disease for Chemical Industry, Shanghai 200041, China
| | - Y Guo
- Central Laboratory, Shanghai Institute of Occupational Disease for Chemical Industry, Shanghai 200041, China
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Ma R, Wang Y, Tian L, Dong J, Hu Z, Lou M, Gong M, Zhang L, Wang B, Yang F, Yu A, Zheng G, Tong Z, Zhang Y. Quantification of Artemisia pollen deposition in the paranasal sinuses following functional endoscopic sinus surgery. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118318] [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: 02/07/2023]
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Zheng G, Cai Y, Guo Y, Song F, Hu Y, Li L, Zhu L. The association between dietary selenium intake and Hashimoto's thyroiditis among US adults: National Health and Nutrition Examination Survey (NHANES), 2007-2012. J Endocrinol Invest 2022:10.1007/s40618-022-01987-0. [PMID: 36515869 DOI: 10.1007/s40618-022-01987-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Selenium has been shown to influence the pathological processes and physiological functions of thyroid. Although growing evidence has shown that selenium can improve the treatment of Hashimoto's thyroiditis (HT), there is a need to evaluate the association between dietary selenium intake and HT in a large cross-sectional study. This study explored the association between dietary selenium intake and HT based on the National Health reand Nutrition Examination Survey (NHANES) database (2007-2012). METHODS A total of 8756 of 30,442 participants were included in the study. Dietary selenium intake was the independent variable, while HT was the dependent variable. In addition, the relative importance of the selected variables was determined using the XGBoost model. A smooth curve was constructed based on the fully adjusted model to investigate the potential linear relationship between dietary selenium intake and HT. Smooth curves were also constructed to explore the linear/non-linear relationship between dietary selenium intake and thyroid peroxidase antibody (TPOAb)/ thyroglobulin antibody (TgAb). RESULTS The mean age of the enrolled participants was 44.35 years (± 20.92). The risk of HT was significantly reduced by a 35% per-unit increase in dietary selenium intake after fully adjusting for covariates according to the model (log2-transformed data; OR 0.65; 95% CI 0.51, 0.83). The XGBoost model revealed that dietary selenium intake was the most important variable associated with Hashimoto's thyroiditis. Dietary selenium intake (Log2-transformed) was negatively correlated with TPOAb levels [- 16.42 (- 22.18, - 10.65), P < 0.0001], while a non-linear relationship was observed between dietary selenium intake and TgAb with an inflection point of 6.58 (95.67 μg, Log2-transformed). CONCLUSION Dietary selenium intake is independently and inversely associated with HT risk. Moreover, dietary selenium intake is negatively correlated with TPOAb levels and non-linearly correlated with TGAb levels. Therefore, dietary selenium intake may be a safe and low-cost alternative for the prevention and treatment of HT.
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Affiliation(s)
- G Zheng
- Otolaryngology Head and Neck Center, Cancer Center, Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Y Cai
- Department of Thyroid Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Y Guo
- Otolaryngology Head and Neck Center, Cancer Center, Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou City, Zhejiang Province, China
- Department of Public Health, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - F Song
- Otolaryngology Head and Neck Center, Cancer Center, Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou City, Zhejiang Province, China
- Department of Public Health, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Y Hu
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou City, Zhejiang Province, China
| | - L Li
- School of Information Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - L Zhu
- Department of Thyroid Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, China.
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou City, Zhejiang Province, China.
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Wang CY, Xu HM, Tian J, Hong SQ, Liu G, Wang SX, Gao F, Liu J, Liu FR, Yu H, Wu X, Chen BQ, Shen FF, Zheng G, Yu J, Shu M, Liu L, Du LJ, Li P, Xu ZW, Zhu MQ, Huang LS, Huang HY, Li HB, Huang YY, Wang D, Wu F, Bai ST, Tang JJ, Shan QW, Lan LC, Zhu CH, Xiong Y, Tian JM, Wu JH, Hao JH, Zhao HY, Lin AW, Song SS, Lin DJ, Zhou QH, Guo YP, Wu JZ, Yang XQ, Zhang XH, Guo Y, Cao Q, Luo LJ, Tao ZB, Yang WK, Zhou YK, Chen Y, Feng LJ, Zhu GL, Zhang YH, Xue P, Li XQ, Tang ZZ, Zhang DH, Su XW, Qu ZH, Zhang Y, Zhao SY, Qi ZZ, Pang L, Wang CY, Deng HL, Liu XL, Chen YH, Shu S. [A multicenter epidemiological study of acute bacterial meningitis in children]. Zhonghua Er Ke Za Zhi 2022; 60:1045-1053. [PMID: 36207852 DOI: 10.3760/cma.j.cn112140-20220608-00522] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To analyze the clinical epidemiological characteristics including composition of pathogens , clinical characteristics, and disease prognosis acute bacterial meningitis (ABM) in Chinese children. Methods: A retrospective analysis was performed on the clinical and laboratory data of 1 610 children <15 years of age with ABM in 33 tertiary hospitals in China from January 2019 to December 2020. Patients were divided into different groups according to age,<28 days group, 28 days to <3 months group, 3 months to <1 year group, 1-<5 years of age group, 5-<15 years of age group; etiology confirmed group and clinically diagnosed group according to etiology diagnosis. Non-numeric variables were analyzed with the Chi-square test or Fisher's exact test, while non-normal distrituction numeric variables were compared with nonparametric test. Results: Among 1 610 children with ABM, 955 were male and 650 were female (5 cases were not provided with gender information), and the age of onset was 1.5 (0.5, 5.5) months. There were 588 cases age from <28 days, 462 cases age from 28 days to <3 months, 302 cases age from 3 months to <1 year of age group, 156 cases in the 1-<5 years of age and 101 cases in the 5-<15 years of age. The detection rates were 38.8% (95/245) and 31.5% (70/222) of Escherichia coli and 27.8% (68/245) and 35.1% (78/222) of Streptococcus agalactiae in infants younger than 28 days of age and 28 days to 3 months of age; the detection rates of Streptococcus pneumonia, Escherichia coli, and Streptococcus agalactiae were 34.3% (61/178), 14.0% (25/178) and 13.5% (24/178) in the 3 months of age to <1 year of age group; the dominant pathogens were Streptococcus pneumoniae and the detection rate were 67.9% (74/109) and 44.4% (16/36) in the 1-<5 years of age and 5-<15 years of age . There were 9.7% (19/195) strains of Escherichia coli producing ultra-broad-spectrum β-lactamases. The positive rates of cerebrospinal fluid (CSF) culture and blood culture were 32.2% (515/1 598) and 25.0% (400/1 598), while 38.2% (126/330)and 25.3% (21/83) in CSF metagenomics next generation sequencing and Streptococcus pneumoniae antigen detection. There were 4.3% (32/790) cases of which CSF white blood cell counts were normal in etiology confirmed group. Among 1 610 children with ABM, main intracranial imaging complications were subdural effusion and (or) empyema in 349 cases (21.7%), hydrocephalus in 233 cases (14.5%), brain abscess in 178 cases (11.1%), and other cerebrovascular diseases, including encephalomalacia, cerebral infarction, and encephalatrophy, in 174 cases (10.8%). Among the 166 cases (10.3%) with unfavorable outcome, 32 cases (2.0%) died among whom 24 cases died before 1 year of age, and 37 cases (2.3%) had recurrence among whom 25 cases had recurrence within 3 weeks. The incidences of subdural effusion and (or) empyema, brain abscess and ependymitis in the etiology confirmed group were significantly higher than those in the clinically diagnosed group (26.2% (207/790) vs. 17.3% (142/820), 13.0% (103/790) vs. 9.1% (75/820), 4.6% (36/790) vs. 2.7% (22/820), χ2=18.71, 6.20, 4.07, all P<0.05), but there was no significant difference in the unfavorable outcomes, mortility, and recurrence between these 2 groups (all P>0.05). Conclusions: The onset age of ABM in children is usually within 1 year of age, especially <3 months. The common pathogens in infants <3 months of age are Escherichia coli and Streptococcus agalactiae, and the dominant pathogen in infant ≥3 months is Streptococcus pneumoniae. Subdural effusion and (or) empyema and hydrocephalus are common complications. ABM should not be excluded even if CSF white blood cell counts is within normal range. Standardized bacteriological examination should be paid more attention to increase the pathogenic detection rate. Non-culture CSF detection methods may facilitate the pathogenic diagnosis.
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Affiliation(s)
- C Y Wang
- Department of Infectious Diseases, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - H M Xu
- Department of Infectious Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - J Tian
- Department of Infectious Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - S Q Hong
- Department of Infectious Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - G Liu
- Department of Infectious Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - S X Wang
- Department of Infectious Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - F Gao
- Department of Infectious Diseases, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - J Liu
- Department of Infectious Diseases, Hunan Children's Hospital, Changsha 410007, China
| | - F R Liu
- Department of Infectious Diseases, Hunan Children's Hospital, Changsha 410007, China
| | - H Yu
- Department of Infectious Diseases, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X Wu
- Department of Infectious Diseases, Children's Hospital of Fudan University, Shanghai 201102, China
| | - B Q Chen
- Department of Infectious Diseases, Anhui Provincial Children's Hospital, Hefei 230022, China
| | - F F Shen
- Department of Infectious Diseases, Anhui Provincial Children's Hospital, Hefei 230022, China
| | - G Zheng
- Department of Neurology, Children's Hospital of Nanjing Medical University,Nanjing 210008, China
| | - J Yu
- Department of Neurology, Children's Hospital of Nanjing Medical University,Nanjing 210008, China
| | - M Shu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610044, China
| | - L Liu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610044, China
| | - L J Du
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan 030006, China
| | - P Li
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan 030006, China
| | - Z W Xu
- Department of Infectious Diseases, the Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - M Q Zhu
- Department of Infectious Diseases, the Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L S Huang
- Department of Infectious Diseases, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - H Y Huang
- Department of Infectious Diseases, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - H B Li
- Department of Pediatrics, the First Hospital of Jilin University, Changchu 130061, China
| | - Y Y Huang
- Department of Pediatrics, the First Hospital of Jilin University, Changchu 130061, China
| | - D Wang
- Department of Neurology, the Affiliated Children's Hospital of Xi'an Jiao Tong University, Xi'an 710002, China
| | - F Wu
- Department of Neurology, the Affiliated Children's Hospital of Xi'an Jiao Tong University, Xi'an 710002, China
| | - S T Bai
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J J Tang
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Q W Shan
- Department of Pediatrics, the First Affiliated Hospital of Guangxi Medical University,Nanning 530021, China
| | - L C Lan
- Department of Pediatrics, the First Affiliated Hospital of Guangxi Medical University,Nanning 530021, China
| | - C H Zhu
- Department of Infectious Diseases, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - Y Xiong
- Department of Infectious Diseases, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - J M Tian
- Department of Infectious Diseases, Children's Hospital of Soochow University,Suzhou 215002, China
| | - J H Wu
- Department of Infectious Diseases, Children's Hospital of Soochow University,Suzhou 215002, China
| | - J H Hao
- Department of Infectious Diseases, Kaifeng Children's Hospital, Kaifeng 475000, China
| | - H Y Zhao
- Department of Infectious Diseases, Kaifeng Children's Hospital, Kaifeng 475000, China
| | - A W Lin
- Department of Infectious Diseases, Children's Hospital Affiliated Shandong University, Jinan 250022, China
| | - S S Song
- Department of Infectious Diseases, Children's Hospital Affiliated Shandong University, Jinan 250022, China
| | - D J Lin
- Department of Infectious Diseases, Hainan Women and Children's Medical Center, Haikou 571103, China
| | - Q H Zhou
- Department of Infectious Diseases, Hainan Women and Children's Medical Center, Haikou 571103, China
| | - Y P Guo
- Department of Infectious Diseases, Hainan Women and Children's Medical Center, Haikou 571103, China
| | - J Z Wu
- Department of Pediatrics, Women's and Children's Hospital Affiliated to Xiamen University, Xiamen 361003, China
| | - X Q Yang
- Department of Pediatrics, Women's and Children's Hospital Affiliated to Xiamen University, Xiamen 361003, China
| | - X H Zhang
- Department of Neonatology, Children's Hospital of Shanxi, Taiyuan 030006, China
| | - Y Guo
- Department of Neonatology, Children's Hospital of Shanxi, Taiyuan 030006, China
| | - Q Cao
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - L J Luo
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Z B Tao
- Department of Pediatrics, the First Hospital of Lanzhou University, Lanzhou 730013, China
| | - W K Yang
- Department of Pediatrics, the First Hospital of Lanzhou University, Lanzhou 730013, China
| | - Y K Zhou
- Department of Pediatrics, the First Hospital of Lanzhou University, Lanzhou 730013, China
| | - Y Chen
- Department of Pediatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050004, China
| | - L J Feng
- Department of Pediatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050004, China
| | - G L Zhu
- Department of Infection and Digestive, Qinghai Province Women and Children's Hospital, Xining 810007, China
| | - Y H Zhang
- Department of Infection and Digestive, Qinghai Province Women and Children's Hospital, Xining 810007, China
| | - P Xue
- Department of Pediatrics, Taiyuan Maternal and Child Health Care Hospital, Taiyuan 030012, China
| | - X Q Li
- Department of Pediatrics, Taiyuan Maternal and Child Health Care Hospital, Taiyuan 030012, China
| | - Z Z Tang
- Department of Pediatrics, the First People's Hospital of Zunyi, Zunyi 563099, China
| | - D H Zhang
- Department of Pediatrics, the First People's Hospital of Zunyi, Zunyi 563099, China
| | - X W Su
- Department of Pediatrics, Inner Mongolia People's Hospital, Inner Mongolia 750306, China
| | - Z H Qu
- Department of Pediatrics, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Y Zhang
- Department of Pediatrics, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - S Y Zhao
- Department of Infectious Diseases, Hangzhou Children's Hospital, Hangzhou 310005, China
| | - Z Z Qi
- Department of Infectious Diseases, Hangzhou Children's Hospital, Hangzhou 310005, China
| | - L Pang
- Department of Pediatrics, Beijing Ditan Hospital, Capital Medical University, Beijing 100102, China
| | - C Y Wang
- Department of Pediatrics, Beijing Ditan Hospital, Capital Medical University, Beijing 100102, China
| | - H L Deng
- Department of Pediatrics, Xi'an Central Hospital, Xi'an 710004, China
| | - X L Liu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y H Chen
- Department of Infectious Diseases, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - Sainan Shu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Li YQ, Tang KL, Ma L, Zhang HX, Wang YJ, Zheng G, Wang ZY, Zhang X, Yuan CS, Chen YH. [Analysis of the effectiveness of coracoid osteotomy and concentric coaxial reconstruction of the glenoid cavity in the treatment of recurrent anterior dislocation of the shoulder joint]. Zhonghua Yi Xue Za Zhi 2022; 102:2283-2289. [PMID: 35927060 DOI: 10.3760/cma.j.cn112137-20211121-02593] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the clinical efficacy of the modified Latarjet procedure in the treatment of recurrent anterior subluxation of the shoulder by "coaxial co-arc" reconstruction of the glenoid cavity. Methods: The clinical data of 103 cases (106 shoulders) of recurrent anterior dislocation of the shoulder admitted to the First Affiliated Hospital of the Army Military Medical University from January 2005 to December 2020 were retrospectively studied. Out of these cases, 84 were males and 19 were females; 31 with left-sided injuries while 75 with right-sided injuries, with a mean age of (29.4±11.5) years (16-61 years). The preoperative anterior fear test was positive, and a modified Latarjet procedure was used to reconstruct the shoulder glenoid defect through a "coaxial co-arc". The Rowe score, simple shoulder test (SST) score, and Visual analogue scale (VAS) score of pain were used to assess the shoulder's function. Parameters such as the postoperative shoulder recurrent dislocation rate, shoulder body external rotation angle, and subscapularis muscle strength changes were recorded postoperatively. Moreover, radiographs and CT scans were used to check for the incidence of osteoarthritis (Samson-Prieto score). Results: After a mean follow-up of 9.0 years (1 to 16 years), bony healing occurred 3 to 6 months postoperatively. The Rowe score improved from 40.4±6.5 preoperatively to 93.2±2.5 (P<0.001), the SST score improved from 5.2±1.3 preoperatively to 10.1±1.5 (P<0.001), and the VAS pain score decreased from 3.5±1.9 preoperatively to 1.1±1.2 (P<0.001) at the final follow-up. The angle of lateral external rotation of the shoulder joint was 58.8°±15.6° preoperatively and 57.6°±14.5° postoperatively with no statistically significant difference (P>0.05). There was no statistically significant difference in the measurement of subscapularis muscle strength between the healthy side and the affected side (P>0.05). In 89.6% of patients after surgery, coaxial co-arc reconstruction of the shoulder glenoid was obtained, and the shoulder glenoid defect and postoperative inclusion angle were significantly improved compared with those before surgery (P<0.001). Postoperatively, new-onset osteoarthritis developed in 7 cases (7/98), arthritis progressed in 2 cases (2/8), incisional healing was poor in 2 cases (2/98), and revision surgery was performed in 2 cases (2/98) due to bone mass detachment. Conclusion: Coracoid osteotomy and concentric coaxial reconstruction of the glenoid cavity elicits adequate good clinical efficacy for cases of recurrent anterior shoulder dislocation, with low recurrence rates, low revision rates and low incidence of osteoarthritis.
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Affiliation(s)
- Y Q Li
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
| | - K L Tang
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
| | - L Ma
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
| | - H X Zhang
- Department of Orthopedics, Army 80th Group Military Hospital, Weifang 261045, China
| | - Y J Wang
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
| | - G Zheng
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
| | - Z Y Wang
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
| | - X Zhang
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
| | - C S Yuan
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
| | - Y H Chen
- Sports Medicine Center, the First Affiliated Hospital of Army Military Medical University (Southwest Hospital), Chongqing 400042, China
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16
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Lou M, Zhang L, Wang S, Ma R, Gong M, Hu Z, Zhang J, Shang Y, Tong Z, Zheng G, Zhang Y. Evaluation of nasal function after endoscopic endonasal surgery for pituitary adenoma: a computational fluid dynamics study. Comput Methods Biomech Biomed Engin 2021; 25:1449-1458. [PMID: 34913791 DOI: 10.1080/10255842.2021.2016721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To analyze the effect of different endoscopic endonasal approaches (EEAs) on nasal airflow and heating and humidification in patients with pituitary adenoma (PA) by computational fluid dynamics (CFD). METHODS A three-dimensional pre-surgical model (Pre) of the nasal cavity and 6 that were post-EEA surgery were created from computed tomography scans as follows: small posterior septectomy (0.5 cm, sPS), middle posterior septectomy (1.5 cm, mPS), large posterior septectomy (2.5 cm, lPS), and sPS with middle turbinate resection (sPS-MTR), mPS-MTR, and lPS-MTR. Simulations were performed by CFD to compare the changes in different models. RESULTS The temperature in the nasal vestibule rose more rapidly than in other parts of the nasal cavities in all models. There were no apparent differences in temperature and humidity among the models in sections anterior to the middle turbinate head (C6 section). MTR significantly influenced airflow distribution between the bilateral nasal cavities and the different parts of the nasal cavity, while changes in temperature and humidity in each section were mainly affected by MTR. The temperature and humidity of the choana and nasopharynx of each postoperative model were significantly different from those of the preoperative model and the change in values significantly correlated with the surface-to-volume ratio (SVR) of the airway. CONCLUSIONS Changes due to the different nasal structures caused different effects on nasal function following the use of EEA surgery for the treatment of PA. CFD provided a new approach to assess nasal function, promising to provide patients with individualized preoperative functional assessment and surgical planning.
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Affiliation(s)
- Miao Lou
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Luyao Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Simin Wang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Ruiping Ma
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Minjie Gong
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhenzhen Hu
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jingbin Zhang
- Department of Imaging, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yidan Shang
- School of Engineering, RMIT University, Bundoora, Australia
| | - Zhenbo Tong
- School of Energy and Environment, Southeast University, Nanjing, China
| | - Guoxi Zheng
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ya Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Zhai D, Wang G, Li L, Jia X, Zheng G, Yin J. [LIM-domain binding protein 2 regulated by m 6A modification inhibits lung adenocarcinoma cell proliferation in vitro]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:329-335. [PMID: 33849822 DOI: 10.12122/j.issn.1673-4254.2021.03.03] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the role and expression pattern of LIM-domain binding protein 2 (LDB2) in lung adenocarcinoma. OBJECTIVE We studied the expression pattern of LDB2 in lung adenocarcinoma based on data from the online databases TCGA, GEO and CPTAC, and the results were verified in lung adenocarcinoma tissues and cells using immunohistochemistry, qRT-PCR and Western blotting. The relationship between LDB2 and the prognosis of patients with lung adenocarcinoma was analyzed using GEPIA and GEO databases. We further analyzed the role of LDB2 in regulating cell behaviors in a H1299 cell model over-expressing LDB2 using cell counting, soft agar colony forming assay and flow cytometry. The m6A binding sites on LDB2 were confirmed by bioinformatics analysis and MeRIP-qPCR assays. The effect of YTHDC2 on LDB2 was examined using qRT-PCR and Western blotting, and the binding of YTHDC2 to the transcript of LDB2 was verified with RIP-qPCR assays. Dual luciferase reporter assay was performed to verify YTHDC2 functioning via m6A sites. OBJECTIVE LDB2 expression was significantly decreased in lung adenocarcinoma in comparison with normal tissues based on data from TCGA, GEPIA and CPTAC, and the same results were obtained from 80 lung adenocarcinoma tissues and 17 adjacent normal tissues. Similarly, LDB2 expression was decreased in lung adenocarcinoma cells as compared with 16HBE cells. The data from Prognoscan and GEPIA suggested that a high LDB2 expression was positively correlated with a more favorable outcome of lung adenocarcinoma patients. LDB2-overexpressing H1299 cells showed a significant inhibition of proliferative activity with cell cycle arrest in S phage. Bioinformatics analysis and MeRIP-qPCR assay confirmed the presence of m6A sites on LDB2. The m6A reader YTHDC2 was positively related with LDB2 in lung adenocarcinoma based on data from GEPIA (r=0.22). Overexpression YTHDC2 significantly enhanced LDB2 expression in H1299 cells by about 19.35 folds. Dual luciferase reporter assay showed that YTHDC2 enhanced the promoter activity in the wild-type group but not in deletion group. OBJECTIVE LDB2 expression can be up-regulated by m6A reader YTHDC2 in lung adenocarcinoma to inhibit the proliferation of the tumor cells in vitro.
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Affiliation(s)
- D Zhai
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University//Guangzhou Key Laboratory of Translational Medicine on Cancer Treatment, Guangzhou 510095, China
| | - G Wang
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University//Guangzhou Key Laboratory of Translational Medicine on Cancer Treatment, Guangzhou 510095, China
| | - L Li
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University//Guangzhou Key Laboratory of Translational Medicine on Cancer Treatment, Guangzhou 510095, China
| | - X Jia
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University//Guangzhou Key Laboratory of Translational Medicine on Cancer Treatment, Guangzhou 510095, China
| | - G Zheng
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University//Guangzhou Key Laboratory of Translational Medicine on Cancer Treatment, Guangzhou 510095, China
| | - J Yin
- Cancer Research Institute, Affiliated Cancer Hospital of Guangzhou Medical University//Guangzhou Key Laboratory of Translational Medicine on Cancer Treatment, Guangzhou 510095, China
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AZMI F, Cao Q, Zheng G, Ye P, Li H, Chen T, Duong H, Harris D, Wang Y. POS-220 DEVELOPING RENAL CLEARABLE NANOPARTICLES FOR THE TREATMENT OF RENAL CELL CARCINOMA. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.234] [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: 10/21/2022] Open
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Lei CJ, Chen W, Li MH, Xu Y, Pan QY, Zheng G, Xu YX. MiR-24 inhibits oligodendrocyte precursor cell differentiation after spinal injury by targeting adrenal medulla. Eur Rev Med Pharmacol Sci 2021; 24:2865-2873. [PMID: 32271404 DOI: 10.26355/eurrev_202003_20650] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Oligodendrocyte precursor cells (OPCs) differentiate into oligodendrocytes (OLs) that provide nutrients to neurons. Adrenal medulla is (ADM) involved in nerve damage. MiR-24 participates in various diseases. However, the regulation and mechanism of miR-24 in oligodendrocyte precursor cell differentiation after spinal injury is unclear. MATERIALS AND METHODS: Wistar rats were divided into sham operation group and model group. Real Time-PCR detects miR-24, PDGFRa and NG2 and MBP expression. OPC cells were cultured and divided into control group, miR-24 group, and si-miR-24 group followed by analysis of miR-24 expression by Real Time-PCR, expression of PDGFRa, NG2 and MBP by Western blot, as well as ADM content and secretion of IL-6 and TNF-α by enzyme-linked immunosorbent assay (ELISA). RESULTS Expression of miR-24, PDGFRa, and NG2 was increased in the model group and MBP and ADM expression was decreased with increased secretion of IL-6 and TNF-α. Compared with control group, the difference was statistically significant (p<0.05). Upregulation of miR-24 promoted the expression of PDGFRa and NG2, decreased MBP and ADM level, and increased IL-6 and TNF-α secretion. Compared with control group, the difference was statistically significant (p<0.05). Downregulation of miR-24 reversed the above changes, and the difference was statistically significant (p<0.05). CONCLUSIONS MiR-24 expression is increased in spinal injury. Upregulation of miR-24 expression reduces adrenal medulla expression and inhibits oligodendrocyte precursor cell differentiation.
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Affiliation(s)
- C-J Lei
- Department of General Surgery, the Second Affiliated Hospital of Jianghan University, Wuhan, Hubei, China.
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Wang L, Xue J, Wei F, Zheng G, Cheng M, Liu S. Chemopreventive effect of galangin against benzo(a)pyrene-induced stomach tumorigenesis through modulating aryl hydrocarbon receptor in Swiss albino mice. Hum Exp Toxicol 2021; 40:1434-1444. [PMID: 33663268 DOI: 10.1177/0960327121997979] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The present study was aimed to evaluate the chemopreventive potential of galangin against benzo(a)pyrene (BaP)-induced stomach carcinogenesis in Swiss albino mice. Stomach cancer was induced in experimental mice using BaP oral administration. The mice were treated with galangin (10 mg/kg b.wt.) before and during BaP administration. Oral administration of galangin at a dose of 10 mg/kg b.wt. significantly (p < 0.05) prevented the tumor incidence, tumor volume in the experimental animals. Further, galangin pretreatment prevents BaP-induced lipid peroxidation and restores BaP-mediated loss of cellular antioxidants status. It has also been found that galangin prevents BaP-induced activation of phase I detoxification enzymes. Furthermore, galangin pretreatment prevented the BaP-induced overexpression of cytochrome P450s isoform genes (CYP1A1, CYP1B1), aryl hydrocarbon receptor system (AhR, ARNT), transcriptional activators (CBP/p300, NF-kB), tumor growth factors, proto-oncogenes, invasion markers (TGFB, SRC-1, MYC, iNOS, MMP2, MMP9) and Phase II metabolic isoenzyme genes (GST) in the stomach tissue homogenate when compared to the control groups. The western blot results confirm that galangin (10 mg/kg. b.wt.) treatment significantly prevented the BaP-mediated expression of ArR, ARNT, and CYP1A1 proteins in the mouse stomach tissue. Therefore, the present results confirm that galangin prevents BaP-induced stomach carcinogenesis probably through modulating ArR and ARNT expression in the experimental mice.
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Affiliation(s)
- L Wang
- Department of Gastrointestinal Surgery, the Fifth Affiliated Hospital of 91593Xinjiang Medical University, Urumqi, Xinjiang, China.,Contributed equally
| | - J Xue
- Department of Blood Transfusion, The Fifth Affiliated Hospital, 26469Sun Yat-sen University, Zhuhai, Guangdong, China.,Contributed equally
| | - F Wei
- Department of Gastroenterology, Central Hospital of Haining, Haining City, Zhejiang, China
| | - G Zheng
- Department of Gastrointestinal Surgery, the Fifth Affiliated Hospital of 91593Xinjiang Medical University, Urumqi, Xinjiang, China
| | - M Cheng
- Department of General Surgery, Shanghai Tianyou Hospital, 12476Tongji University, Shanghai, China
| | - S Liu
- Department of Gastrointestinal Surgery, 499782Shengli Oilfield Central Hospital, Dongying City, Shandong, China
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Liu X, Peng W, Xie F, Cao J, Dong Y, Duan X, Wen Y, Shan B, Sun K, Zheng G. Summary of Tritium Source Term Study in 10 MW High Temperature Gas-Cooled Test Reactor. Fusion Science and Technology 2020. [DOI: 10.1080/15361055.2020.1718856] [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] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- X. Liu
- Tsinghua University, Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Beijing 100084, China
| | - W. Peng
- Tsinghua University, Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Beijing 100084, China
| | - F. Xie
- Tsinghua University, Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Beijing 100084, China
| | - J. Cao
- Tsinghua University, Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Beijing 100084, China
| | - Y. Dong
- Tsinghua University, Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Beijing 100084, China
| | - X. Duan
- Wuhan Institute of Technology, School of Materials Science and Engineering, Wuhan 430205, China
| | - Y. Wen
- Huazhong University of Science and Technology, School of Materials Science and Engineering, Wuhan 430074, China
| | - B. Shan
- Huazhong University of Science and Technology, School of Materials Science and Engineering, Wuhan 430074, China
| | - K. Sun
- Massachusetts Institute of Technology, Nuclear Reactor Laboratory, Cambridge, Massachusetts 02139
| | - G. Zheng
- Massachusetts Institute of Technology, Nuclear Reactor Laboratory, Cambridge, Massachusetts 02139
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Chattopadhyay S, Zheng G, Hemminki A, Försti A, Sundquist K, Sundquist J, Hemminki K. Influence of family history on risk of second primary cancers and survival in patients with squamous cell skin cancer. Br J Dermatol 2020; 183:488-494. [PMID: 31853941 DOI: 10.1111/bjd.18809] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Patients with squamous cell skin cancer (SCC) have an excellent prognosis but second primary cancers (SPCs) weaken survival prospects. Family history is a known risk factor for cancer but whether it is a risk factor for SPC in patients with SCC is not known. OBJECTIVES To quantify the risk of family history on SPCs in patients with SCC and estimate survival probabilities of patients with SPCs depending on family history. METHODS With 13 945 histologically verified SCCs, relative risks (RRs) were estimated for family history using a generalized regression model. For survival analysis, hazard ratios (HRs) were assessed using a multivariable Cox proportional-hazards model. RESULTS Family history of invasive SCC increased risk of second invasive SCC [RR = 42·92, 95% confidence interval (CI) 33·69-50·32] compared with risk without family history (RR 19·12, 95% CI 17·88-21·08). Family history of any nonskin cancer in invasive SCC increased risk of the same cancers to be diagnosed as SPC (RRFH = 1·48, 95% CI 1·35-1·61 vs. RRno FH = 1·40, 95% CI 1·32-1·48); significant increases were observed for seven different nonskin cancers. Most results were replicated for in situ SCC. SPC was deleterious for survival irrespective of family history; HR for patients with SPC was 4·28 (95% CI 3·83-4·72) vs. those without SPC (1·04). CONCLUSIONS Family history of nonskin cancer was associated with approximately a doubling of risk for SPCs in patients with SCC. SPC increases the death rate in patients with SCC 3-4 times, irrespective of family history. Taking family history into account at SCC diagnosis may help prevention or early detection of SPCs. What's already known about this topic? Second primary cancers (SPCs) are frequently diagnosed in patients with invasive and in situ squamous cell carcinoma (SCC); some epidemiological studies suggest a link to immune dysfunction. Family history of cancer is a risk factor for practically all first primary cancers but whether it also influences risk of SPCs in patients with SCC is not known. The possible influence of family history on survival in patients with SCC remains to be established. Linked Comment: Youlden and Baade. Br J Dermatol 2020; 183:414-415.
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Affiliation(s)
- S Chattopadhyay
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, D-69120, Heidelberg, Germany.,Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, D-69120, Heidelberg, Germany.,Faculty of Medicine, University of Heidelberg, Heidelberg, Germany
| | - G Zheng
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, D-69120, Heidelberg, Germany.,Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, D-69120, Heidelberg, Germany.,Faculty of Medicine, University of Heidelberg, Heidelberg, Germany
| | - A Hemminki
- Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland.,Cancer Gene Therapy Group, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - A Försti
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, D-69120, Heidelberg, Germany.,Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany.,Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany.,Center for Primary Health Care Research, Lund University, 205 02, Malmö, Sweden
| | - K Sundquist
- Center for Primary Health Care Research, Lund University, 205 02, Malmö, Sweden.,Department of Family Medicine and Community Health, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, U.S.A.,Center for Community-based Healthcare Research and Education (CoHRE), Department of Functional Pathology, School of Medicine, Shimane University, Japan
| | - J Sundquist
- Center for Primary Health Care Research, Lund University, 205 02, Malmö, Sweden.,Department of Family Medicine and Community Health, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, U.S.A.,Center for Community-based Healthcare Research and Education (CoHRE), Department of Functional Pathology, School of Medicine, Shimane University, Japan
| | - K Hemminki
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, D-69120, Heidelberg, Germany.,Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, D-69120, Heidelberg, Germany.,Center for Primary Health Care Research, Lund University, 205 02, Malmö, Sweden.,Faculty of Medicine and Biomedical Center in Pilsen, Charles University in Prague, 30605, Pilsen, Czech Republic
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Zhang Y, Shang Y, Inthavong K, Tong Z, Sun B, Zhu K, Yu A, Zheng G. Computational investigation of dust mite allergens in a realistic human nasal cavity. Inhal Toxicol 2019; 31:224-235. [PMID: 31431101 DOI: 10.1080/08958378.2019.1647315] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Aim: Inhaled allergens from house dust mite (HDM) are a major source of allergic disease such as allergic rhinitis and asthma. It has been a challenge to properly evaluate health risks caused by HDM related allergens including mite bodies, eggs and fecal pellets. This paper presents a numerical study on particle deposition of dust mite allergens in a human nasal cavity. Materials and methods: A realistic nasal cavity model was reconstructed from CT scans and a Computational Fluid Dynamics analysis of steady airflow was simulated. The discrete phase model was used to trace particle trajectories of three dust mite related particles. Results: The flow and particle model were validated by comparing with nasal resistance measurement and previous literature respectively. Aerodynamic characteristics and deposition of dust mite allergens in the nasal cavity were analyzed under different breathing conditions including rest and exercising conditions. Conclusions: The numerical results revealed the roles of different nasal cavity regions in filtering various types of dust mite allergens with consideration of breathing conditions.
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Affiliation(s)
- Ya Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University , Xi'an , China
| | - Yidan Shang
- College of Air Transportation, Shanghai University of Engineering Science , Shanghai , China.,School of Engineering, RMIT University , Bundoora , Australia
| | - Kiao Inthavong
- School of Engineering, RMIT University , Bundoora , Australia
| | - Zhenbo Tong
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University , Nanjing , China
| | - Bin Sun
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University , Xi'an , China
| | - Kang Zhu
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University , Xi'an , China
| | - Aibing Yu
- Laboratory for Simulation and Modelling of Particulate Systems, Department of Chemical Engineering, Monash University , Clayton , Australia
| | - Guoxi Zheng
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University , Xi'an , China
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Zurmühle CA, Schmaranzer F, Nuss K, Wolfer N, Ryan MK, Zheng G, von Rechenberg B, Tannast M. Proof of concept: hip joint damage occurs at the zone of femoroacetabular impingement (FAI) in an experimental FAI sheep model. Osteoarthritis Cartilage 2019; 27:1075-1083. [PMID: 30991104 DOI: 10.1016/j.joca.2019.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 11/07/2018] [Revised: 03/31/2019] [Accepted: 04/03/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE In ovine hips chondrolabral damage as seen in cam-type femoroacetabular impingement (FAI) can be induced via an intertrochanteric varus osteotomy. However, it is yet to proven whether the observed cartilage damage is caused by a dynamic cam type impingement. Thus we asked, (1) whether actual cartilage damage observed after FAI induction in ovine hips occurs at the predicted, computed zone of FAI; (2) whether the extent of cartilage damage increases with ambulation time in this animal model? DESIGN In this experimental, controlled, comparative study 20 sheep underwent unilateral FAI induction through an intertrochanteric varus osteotomy. Preoperatively sheep underwent computed tomography to generate three-dimensional models of the osseous pelvis and femur. The models were used to predict impingement zones before and after simulated varus osteotomy using range of motion (ROM) analysis. Sheep were sacrificed after 14-40 weeks of ambulation. At sacrifice cartilage was inspected and (1) location of actual damage and computed impingement zones were compared; (2) Cartilage damage was compared between short- and long ambulation groups. RESULTS (1) The average location and the extent of peripheral and central cartilage lesions did not differ with the computed impingement zones (all P > 0.05). (2) Grades of central, posterior cartilage damage were more severe in the long-compared to the short ambulation group (2.2 ± 1.8 vs 0.4 ± 0.5; P = 0.030). CONCLUSIONS In this experimental ovine FAI model the surgical induction of an osseous impingement conflict between the femur and acetabulum causes cartilage damage at the zone of simulated FAI.
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Affiliation(s)
- C A Zurmühle
- Department of Orthopaedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - F Schmaranzer
- Department of Orthopaedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
| | - K Nuss
- Musculoskeletal Research Unit (MSRU), Equine Hospital, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland
| | - N Wolfer
- Musculoskeletal Research Unit (MSRU), Equine Hospital, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland
| | - M K Ryan
- Andrews Sports Medicine and Orthopaedic Center, American Sports Medicine Institute, Birmingham, AL, USA
| | - G Zheng
- Institute for Surgical Technology and Biomechanics, University of Bern, Bern, Switzerland
| | - B von Rechenberg
- Musculoskeletal Research Unit (MSRU), Equine Hospital, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland
| | - M Tannast
- Department of Orthopaedic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Musculoskeletal Research Unit (MSRU), Equine Hospital, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland; Department of Orthopaedic Surgery and Traumatologie, Cantonal Hospital, University of Fribourg, Switzerland
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Schmaranzer F, Degonda C, Lerch TD, Cullmann-Bastian J, Heverhagen JT, Siebenrock K, Zheng G. MRI-based 3D Models of the Pelvis Can Replace CT-based 3D Models for Range-of-Motion Analysis in Femoroacetabular Impingement. Semin Musculoskelet Radiol 2019. [DOI: 10.1055/s-0039-1692572] [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: 10/26/2022]
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Schmaranzer F, Helfenstein R, Zeng G, Lerch TD, Siebenrock K, Tannast M, Zheng G. Automatic MRI-based 3D Models of Hip Cartilage Using a 3D U-net-like Fully Convolutional Network for Improved Morphologic and Biochemical Analysis. Semin Musculoskelet Radiol 2019. [DOI: 10.1055/s-0039-1692571] [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: 10/26/2022]
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Zheng G, Song K, Zhao Y. Liver kinase B1 suppresses the metastasis and angiogenesis of lung cancer: involvement of the Shh signaling pathway. Neoplasma 2019; 66:367-376. [PMID: 30784288 DOI: 10.4149/neo_2018_180820n630] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 11/06/2018] [Indexed: 11/08/2022]
Abstract
Liver kinase B1 (LKB1) is revealed to have a close relationship with cancers. However, the underlying mechanism remains unclear. This study aimed to reveal the mechanism through which LKB1 performed its role in lung cancer. LKB1 shRNA and overexpression plasmid were employed to investigate the role of LKB1 in lung cancer in vitro and in vivo. The involvement of Shh signaling pathway was assessed by western blot. Silence of LKB1 promoted, while overexpression of LKB1 inhibited the migration, invasion and angiogenesis of lung cancer cells. Further study showed that Shh signaling pathway was suppressed by LKB1. Cyclopamine, a Shh signaling pathway inhibitor, reduced the effects of LKB1 silence, indicating that LKB1 inhibits the migration, invasion and angiogenesis through suppressing the Shh signaling pathway. In vivo study also showed that Shh signaling pathway was involved in the modulation of LKB1 on the metastasis and angiogenesis of lung cancer. Our study demonstrates that LKB1 inhibits the metastasis and angiogenesis of lung cancer through suppressing the Shh signaling pathway.
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Affiliation(s)
- G Zheng
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - K Song
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Y Zhao
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China
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30
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Li R, Yang H, Zheng G, Chen Q, Sun Q. Study of granular state transition in a rotation drum by using speckle visibility spectroscopy and the edit distance with real penalty algorithm. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.02.043] [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: 10/27/2022]
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31
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Wang Y, Zhang J, Guo S, Dong Z, Meng X, Zheng G, Yang D, Zheng Z, Zhao Y. Implication of lymph node staging in migration and different treatment strategies for stage T2N0M0 and T1N1M0 resected gastric cancer: a SEER population analysis. Clin Transl Oncol 2019; 21:1499-1509. [PMID: 30903518 DOI: 10.1007/s12094-019-02078-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 12/08/2018] [Accepted: 02/28/2019] [Indexed: 02/06/2023]
Abstract
PURPOSE The purpose of this study was to explore the differences between stage T2N0M0 and stage T1N1M0 gastric cancer (GC) and to identify the necessity of adjuvant treatment (AT) for these stages. METHODS Between years 2004 and 2015, 1971 stage IB GC patients who underwent radical surgery were recruited using the Surveillance, Epidemiology and End Results database. We conducted univariate/multivariate analyses, the propensity score matching and evaluated gastric cancer-specific survival (GCSS) and overall survival (OS) with the log-rank test. RESULTS T1N1M0 had a significantly worse survival than T2N0M0 in both GCSS and OS before and after the propensity score matching. Examined lymph nodes (ELN) ≤ 15 and T1N1M0 were independent risk factors for worse GCSS and OS in stage IB GC. The absence of adjuvant chemotherapy (CT) was an independent risk factor for worse GCSS and OS in T1N1M0 but not in T2N0M0. AT demonstrated similar GCSS and OS with surgery alone (SA) for T2N0M0 but better survival for T1N1M0. Compared to CT and adjuvant chemoradiotherapy (CRT) group, SA demonstrated significantly worse GCSS and OS for T1N1M0. There was no significant difference between CT and CRT in both T2N0M0 and T1N1M0 stages. T2N0M0 had a better survival than T1N1M0 in ELN ≤ 15 subgroup. However, similar survival was demonstrated in ELN > 15 subgroup. CONCLUSIONS T2N0M0 GC has a better survival rate than T1N1M0 GC when ELN are ≤ 15. Moreover, T2N0M0 GC may not benefit from AT. T1N1M0 GC requires CT but not adjuvant radiotherapy.
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Affiliation(s)
- Y Wang
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China
| | - J Zhang
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China
| | - S Guo
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China
| | - Z Dong
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China
| | - X Meng
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China
| | - G Zheng
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China
| | - D Yang
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China
| | - Z Zheng
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China
| | - Y Zhao
- Department of Gastric Cancer, Liaoning Cancer Hospital and Institute (Cancer Hospital of China Medical University), No. 44 Xiaoheyan Road, Dadong District, Shenyang City, 110042, Liaoning Province, China.
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Lin S, Yang H, Li R, Zheng G, Zivkovic V. Velocities of irregular particles in a continuously avalanching surface flow within a rotating drum. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.07.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kato T, Jin C, Ujiie H, Fujino K, Lee D, Wada H, Hu H, Wu L, Weersink R, Chen J, Kanno H, Hatanaka Y, Hatanaka K, Matsuno Y, De Perrot M, Wilson B, Zheng G, Yasufuku K. MA12.09 Preclinical Investigations of Folate Receptor Targeted Nanoparticles for Photodynamic Therapy of Malignant Pleural Mesothelioma. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.418] [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: 11/27/2022]
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34
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Kinoshita T, Ujiie H, Chen J, Ding L, Chan H, Gregor A, Bernards N, Mcveigh P, Fujino K, Lee C, Motooka Y, Inage T, Valic M, Weersink R, Wilson B, Zheng G, Asamura H, Yasufuku K. P3.16-05 A Nanotechnology-Enabled Strategy for Image-Guided Transbronchial and Transpleural Photothermal Therapy of Peripheral Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1912] [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]
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35
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Zheng G, Autar ASA, Fateh L, Van Beusekom HMM. P1653The role of thrombus and its composition in early re-endothelialization in injured swine coronary arteries. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1653] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- G Zheng
- Erasmus Medical Center, Department of Cardiology, Rotterdam, Netherlands
| | - A S A Autar
- Erasmus Medical Center, Department of Cardiology, Rotterdam, Netherlands
| | - L Fateh
- Erasmus Medical Center, Department of Cardiology, Rotterdam, Netherlands
| | - H M M Van Beusekom
- Erasmus Medical Center, Department of Cardiology, Rotterdam, Netherlands
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36
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Zheng G, Chattopadhyay S, Kanerva A, Försti A, Sundquist K, Hemminki K. PO-051 Familial risks and mortality in second primary cancers of ovarian cancer patients. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.584] [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: 11/04/2022] Open
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37
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Philp L, Chan H, Rouzbahman M, Chen J, Zheng G, Bernardini M. Use of porphysomes for accurate intraoperative detection of lymph node metastases in an endometrial cancer model. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.451] [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: 12/01/2022]
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38
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Zheng G, Streiff MB, Allison D, Takemoto CM, Salimian K, Morris P, Jani J, McCord R, Kickler TS. A novel diagnostic algorithm for heparin-induced thrombocytopenia. Int J Lab Hematol 2018; 40:527-532. [PMID: 29756276 DOI: 10.1111/ijlh.12853] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/08/2018] [Indexed: 11/28/2022]
Abstract
INTRODUCTION While diagnostic algorithm using PF4-heparin enzyme-linked immunosorbent assay (ELISA) optical density (OD), and heparin neutralization assay (HNA), or 4T score have been proposed to replace serotonin-release assay (SRA) for heparin-induced thrombocytopenia (HIT), their performance against SRA is unclear. In this study, we proposed and validated the performance of a new algorithm combining PF4-heparin ELISA optical density (OD), HNA and 4T score against SRA for HIT diagnosis. METHODS Heparin neutralization assays were performed on specimens submitted for HIT testing with positive PF4-heparin ELISA from December 2015 to September 2017, which were separated into a "training" and a "validation" data set. 4T scores were calculated for ELISA positive cases. RESULTS A total of 123 consecutive unique patient samples had positive PF4-heparin ELISA with also HNA data, SRA data, and 4T scores available. Compared to SRA, a "laboratory criteria" (ELISA OD ≥ 1.4 and HNA ≥ 70%) had a sensitivity of 88% (14/16) and specificity of 91% (42/46), and a "combined criteria" (4T score = 8, or 4T score = 6 or 7 and ELISA OD ≥ 1.0, or 4T score = 4 or 5 and ELISA OD ≥ 2.0) had a sensitivity of 75% (12/16) and specificity of 98% (45/46) in the training data set. Laboratory and combined criteria had 90% (56/62) concordance rate. Importantly, for these concordant cases, the diagnostic specificity is 100% (46/46). Based on the data, a novel diagnostic algorithm combining these 2 criteria was proposed and validated prospectively. CONCLUSION A novel algorithm has high diagnostic accuracy and potentially could eliminate the need for SRA testing in at least 90% patients with suspected HIT.
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Affiliation(s)
- G Zheng
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - M B Streiff
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - D Allison
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C M Takemoto
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - K Salimian
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - P Morris
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J Jani
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - R McCord
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - T S Kickler
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Shan Q, Wang J, Yang F, Ma L, Yin Y, Liu S, Li L, Zheng G. Pharmacokinetics of cefquinome in crucian carp (Carassius auratus gibelio) after oral, intramuscular, intraperitoneal, and bath administration. J Vet Pharmacol Ther 2018; 41:734-738. [PMID: 29654606 DOI: 10.1111/jvp.12510] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 02/05/2018] [Indexed: 11/29/2022]
Abstract
The pharmacokinetics (PK) of cefquinome (CEQ) was studied in crucian carp (Carassius auratus gibelio) after single oral, intramuscular (i.m.), and intraperitoneal (i.p.) administration at a dose of 10 mg/kg body weight and following incubation in a 5 mg/L bath for 5 hr at 25°C. The plasma concentration of CEQ was determined using high-performance liquid chromatography (HPLC). PK parameters were calculated based on mean CEQ concentration using WinNonlin 6.1 software. The disposition of CEQ following oral, i.m., or i.p. administration was best described by a two-compartment open model with first-order absorption. After oral, i.m., and i.p. administration, the maximum plasma concentration (Cmax ) values were 1.52, 40.53, and 67.87 μg/ml obtained at 0.25, 0.23, and 0.35 hr, respectively, while the elimination half-life (T1/2β ) values were 4.68, 7.39, and 6.88 hr, respectively; the area under the concentration-time curve (AUC) values were 8.61, 339.11, and 495.06 μg hr/ml, respectively. No CEQ was detected in the plasma after bath incubation. Therapeutic blood concentrations of CEQ can be achieved in the crucian carp following i.m. and i.p. administration at a dosage of 10 mg/kg once every 2 days.
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Affiliation(s)
- Q Shan
- Key Laboratory of Recreational Fisheries Research, Ministry of Agriculture and Ministry of Agriculture Laboratory of Quality and Safety Risky Assessment for Aquatic Product, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - J Wang
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - F Yang
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - L Ma
- Key Laboratory of Recreational Fisheries Research, Ministry of Agriculture and Ministry of Agriculture Laboratory of Quality and Safety Risky Assessment for Aquatic Product, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - Y Yin
- Key Laboratory of Recreational Fisheries Research, Ministry of Agriculture and Ministry of Agriculture Laboratory of Quality and Safety Risky Assessment for Aquatic Product, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - S Liu
- Key Laboratory of Recreational Fisheries Research, Ministry of Agriculture and Ministry of Agriculture Laboratory of Quality and Safety Risky Assessment for Aquatic Product, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - L Li
- Key Laboratory of Recreational Fisheries Research, Ministry of Agriculture and Ministry of Agriculture Laboratory of Quality and Safety Risky Assessment for Aquatic Product, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - G Zheng
- Key Laboratory of Recreational Fisheries Research, Ministry of Agriculture and Ministry of Agriculture Laboratory of Quality and Safety Risky Assessment for Aquatic Product, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
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Abstract
Porphyrins are organic heterocyclic macrocycles with photophysical properties well-suited for clinical phototherapy and cancer imaging. However, their wider application in the clinical management of disease is barred by poor aqueous solubility, bioavailability, tumour accumulation and skin phototoxicity. These limitations instigated the development of supramolecular platforms that improved porphyrin pharmacokinetics and tumour-homing. The supramolecular formulation of porphyrins also facilitates single agent-mediated deeper tissue photoactivation, extended imaging and theranostic multimodality, and synergistic application of multiple therapies. Supramolecular porphyrin structures can overcome additional limitations of porphyrin-mediated photodynamic therapy (PDT), including low depths of tissue penetration that restrict PDT to superficial lesions, inability to treat hypoxic tumours, and incomplete tumour damage. In this review, we discuss the photophysical properties of porphyrins, and overview the clinically-relevant advantages and challenges arising from their incorporation within supramolecular platforms. Specifically, fundamentals underlying the ability of these platforms to ameliorate passive and active porphyrin delivery to tumours, achieve deeper tissue PDT via red-shifted porphyrin Q-bands, energy transfer and sonodynamic effects, and enable new porphyrin-mediated theranostics and synergistic therapeutic capabilities will be explained and exemplified with seminal and cutting-edge in vivo studies.
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Affiliation(s)
- M A Rajora
- Princess Margaret Cancer Centre, University Health Network, 101 College Street, Toronto, Ontario M5G 1L7, Canada.
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41
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42
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Samkharadze N, Zheng G, Kalhor N, Brousse D, Sammak A, Mendes UC, Blais A, Scappucci G, Vandersypen LMK. Strong spin-photon coupling in silicon. Science 2018; 359:1123-1127. [PMID: 29371427 DOI: 10.1126/science.aar4054] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 01/15/2018] [Indexed: 01/25/2023]
Abstract
Long coherence times of single spins in silicon quantum dots make these systems highly attractive for quantum computation, but how to scale up spin qubit systems remains an open question. As a first step to address this issue, we demonstrate the strong coupling of a single electron spin and a single microwave photon. The electron spin is trapped in a silicon double quantum dot, and the microwave photon is stored in an on-chip high-impedance superconducting resonator. The electric field component of the cavity photon couples directly to the charge dipole of the electron in the double dot, and indirectly to the electron spin, through a strong local magnetic field gradient from a nearby micromagnet. Our results provide a route to realizing large networks of quantum dot-based spin qubit registers.
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Affiliation(s)
- N Samkharadze
- QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, Netherlands
| | - G Zheng
- QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, Netherlands
| | - N Kalhor
- QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, Netherlands
| | - D Brousse
- QuTech and Netherlands Organization for Applied Scientific Research (TNO), Stieltjesweg 1, 2628 CK Delft, Netherlands
| | - A Sammak
- QuTech and Netherlands Organization for Applied Scientific Research (TNO), Stieltjesweg 1, 2628 CK Delft, Netherlands
| | - U C Mendes
- Institut Quantique and Département de Physique, Université de Sherbrooke, Sherbrooke, Québec J1K 2R1, Canada
| | - A Blais
- Institut Quantique and Département de Physique, Université de Sherbrooke, Sherbrooke, Québec J1K 2R1, Canada.,Canadian Institute for Advanced Research, Toronto, Ontario, Canada
| | - G Scappucci
- QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, Netherlands
| | - L M K Vandersypen
- QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, Netherlands.
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Kato T, Jin C, Ujiie H, Lee D, Kosuke F, Wada H, Hu H, Weersink R, Chen J, Kaji M, Wilson B, Zheng G, Kaga K, Matsui Y, Yasufuku K. P1.12-002 Nanoparticle Targeted Folate Receptor 1 Enhanced Photodynamic Therapy for Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1000] [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: 11/30/2022]
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44
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Rajora MA, Ding L, Valic M, Jiang W, Overchuk M, Chen J, Zheng G. Correction: Tailored theranostic apolipoprotein E3 porphyrin-lipid nanoparticles target glioblastoma. Chem Sci 2017; 8:5803. [PMID: 30294416 PMCID: PMC6157424 DOI: 10.1039/c7sc90047c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 07/06/2017] [Indexed: 11/21/2022] Open
Abstract
Correction for ‘Tailored theranostic apolipoprotein E3 porphyrin-lipid nanoparticles target glioblastoma’ by M. A. Rajora et al., Chem. Sci., 2017, DOI: ; 10.1039/c7sc00732a.
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Affiliation(s)
- M A Rajora
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada . .,Institute of Biomaterials and Biomedical Engineering , University of Toronto , 164 College Street , Toronto , Ontario M5S 3G9 , Canada
| | - L Ding
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada .
| | - M Valic
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada . .,Institute of Biomaterials and Biomedical Engineering , University of Toronto , 164 College Street , Toronto , Ontario M5S 3G9 , Canada
| | - W Jiang
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada .
| | - M Overchuk
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada . .,Institute of Biomaterials and Biomedical Engineering , University of Toronto , 164 College Street , Toronto , Ontario M5S 3G9 , Canada
| | - J Chen
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada .
| | - G Zheng
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada . .,Institute of Biomaterials and Biomedical Engineering , University of Toronto , 164 College Street , Toronto , Ontario M5S 3G9 , Canada.,Department of Medical Biophysics , University of Toronto , 101 College Street , Toronto , Ontario M5G 1L7 , Canada
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Lv J, Tian J, Zheng G, Zhao J. Sirtuin7 is involved in protecting neurons against oxygen-glucose deprivation and reoxygenation-induced injury through regulation of the p53 signaling pathway. J Biochem Mol Toxicol 2017; 31. [PMID: 28675767 DOI: 10.1002/jbt.21955] [Citation(s) in RCA: 12] [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: 03/08/2017] [Revised: 05/31/2017] [Accepted: 06/16/2017] [Indexed: 01/04/2023]
Abstract
Sirtuin7 (SIRT7) is known to regulate apoptosis and stress responses. So far, very little is known about the role of SIRT7 in cerebral ischemia/reperfusion injury. In this study, we aimed to investigate the potential role of SIRT7 in regulating oxygen-glucose deprivation and reoxygenation (OGD/R)-induced injury in neurons. We found a significant increase of SIRT7 expression in neurons in response to OGD/R treatment. Knockdown of SIRT7 aggravated OGD/R-induced injury. Knockdown of SIRT7 augmented the levels of total and acetylated p53 protein. Moreover, knockdown of SIRT7 markedly increased the transcriptional activity of p53 toward apoptosis and activated the p53-mediated proapoptotic signaling pathway. By contrast, overexpression of SIRT7 showed the opposite effects. Taken together, the results of our study suggest that SIRT7 is involved in protecting neurons against OGD/R-induced injury, possibly through regulation of the p53-mediated proapoptotic signaling pathway, indicating a potential therapeutic target for cerebral ischemia/reperfusion injury.
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Affiliation(s)
- Jianrui Lv
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, People's Republic of China
| | - Junbin Tian
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, People's Republic of China
| | - Guoxi Zheng
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, People's Republic of China
| | - Jing Zhao
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, People's Republic of China
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Shan Q, Fan J, Wang J, Zhu X, Yin Y, Zheng G. Pharmacokinetics of enrofloxacin after oral, intramuscular and bath administration in crucian carp (Carassius auratus gibelio). J Vet Pharmacol Ther 2017; 41:159-162. [PMID: 28603916 DOI: 10.1111/jvp.12428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 01/18/2017] [Accepted: 05/10/2017] [Indexed: 11/29/2022]
Abstract
The pharmacokinetics of enrofloxacin (ENR) was studied in crucian carp (Carassius auratus gibelio) after single administration by intramuscular (IM) injection and oral gavage (PO) at a dose of 10 mg/kg body weight and by 5 mg/L bath for 5 hr at 25°C. The plasma concentrations of ENR and ciprofloxacin (CIP) were determined by HPLC. Pharmacokinetic parameters were calculated based on mean ENR or CIP concentrations using WinNonlin 6.1 software. After IM, PO and bath administration, the maximum plasma concentration (Cmax ) of 2.29, 3.24 and 0.36 μg/ml was obtained at 4.08, 0.68 and 0 hr, respectively; the elimination half-life (T1/2β ) was 80.95, 62.17 and 61.15 hr, respectively; the area under the concentration-time curve (AUC) values were 223.46, 162.72 and 14.91 μg hr/ml, respectively. CIP, an active metabolite of enrofloxacin, was detected and measured after all methods of drug administration except bath. It is possible and practical to obtain therapeutic blood concentrations of enrofloxacin in the crucian carp using IM, PO and bath immersion administration.
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Affiliation(s)
- Q Shan
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - J Fan
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - J Wang
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - X Zhu
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - Y Yin
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
| | - G Zheng
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academic of Fishery Science, Guangzhou, China
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Rajora MA, Ding L, Valic M, Jiang W, Overchuk M, Chen J, Zheng G. Tailored theranostic apolipoprotein E3 porphyrin-lipid nanoparticles target glioblastoma. Chem Sci 2017; 8:5371-5384. [PMID: 28970916 PMCID: PMC5609152 DOI: 10.1039/c7sc00732a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/18/2017] [Indexed: 12/21/2022] Open
Abstract
Size-controlled discoidal and cholesteryl oleated-loaded spherical, intrinsically multimodal porphyrin-lipid nanoparticles targeted glioblastoma via apoE3 and LDLR.
The development of curative glioblastoma treatments and tumour-specific contrast agents that can overcome the blood–brain barrier (BBB) and infiltrative tumour morphology remains a challenge. Apolipoprotein E3 (apoE3) is a high density lipoprotein apolipoprotein that chaperones the transcytosis of nanoparticles across the BBB, and displays high-affinity binding with the low density lipoprotein receptor (LDLR), a cell-surface receptor overexpressed by glioblastoma cells. This LDLR overexpression and apoE3 binding capacity was exploited for the development of glioblastoma-targeted porphyrin-lipid apoE3 lipid nanoparticles (pyE-LNs) with intrinsic theranostic properties. Size-controlled discoidal and cholesteryl oleate (CO)-loaded spherical pyE-LNs were synthesized through the systematic variation of particle composition, which dictated nanoparticle size and morphology. Composition optimization yielded 30 nm pyE-LNs with stable loading of apoE3 and porphyrin-lipid that simultaneously conferred the nanoparticles with glioblastoma targeting and activatable near-infrared fluorescence imaging functionalities. A 4-fold higher uptake of pyE-LNs by LDLR-expressing U87 glioblastomas cells relative to minimally expressing ldlA7 cells was observed in vitro. This uptake was a result of receptor-mediated endocytosis, which could be inhibited through LDL competition and acetylation of particle apoE3 moieties. ApoE3-dependent delivery of pyE-LN to glioblastomas was also demonstrated in orthotopic U87-GFP tumour-bearing animals. Quantification of CO-loaded pyE-LN biodistribution demonstrated successful selective uptake of porphyrin by malignant tissue, with a 4 : 1 tumour : healthy tissue particle specificity. This allowed for the detection of strong, tumour-localized porphyrin fluorescence, which was diminished when apoE3-devoid py-LN particles were administered. Furthermore, this selective uptake yielded cell-specific potent PDT sensitization in vitro, resulting in an 83% reduction in glioblastoma cell viability. These results highlight the promising capacity of pyE-LNs to target porphyrin delivery to glioblastoma tumours for theranostic applications.
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Affiliation(s)
- M A Rajora
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada . .,Institute of Biomaterials and Biomedical Engineering , University of Toronto , 164 College Street , Toronto , Ontario M5S 3G9 , Canada
| | - L Ding
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada .
| | - M Valic
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada . .,Institute of Biomaterials and Biomedical Engineering , University of Toronto , 164 College Street , Toronto , Ontario M5S 3G9 , Canada
| | - W Jiang
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada .
| | - M Overchuk
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada . .,Institute of Biomaterials and Biomedical Engineering , University of Toronto , 164 College Street , Toronto , Ontario M5S 3G9 , Canada
| | - J Chen
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada .
| | - G Zheng
- Princess Margaret Cancer Centre , University Health Network , 101 College Street , Toronto , Ontario M5G 1L7 , Canada . .,Institute of Biomaterials and Biomedical Engineering , University of Toronto , 164 College Street , Toronto , Ontario M5S 3G9 , Canada.,Department of Medical Biophysics , University of Toronto , 101 College Street , Toronto , Ontario M5G 1L7 , Canada
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Kuang G, Shan J, Xu W, Zhang Q, Liu Y, Liu D, Liu F, Lin J, Zheng G, Wu J, Zhu W, Ding B, Shang L, Xu H, Yang C, Zhou Y, Fang Y, Xie J, Wan Y. A Lower Hybrid Current Drive System on the Superconductive Tokamak HT-7. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst99-a103] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- G. Kuang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - J. Shan
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - W. Xu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Q. Zhang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Y. Liu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - D. Liu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - F. Liu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - J. Lin
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - G. Zheng
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - J. Wu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - W. Zhu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - B. Ding
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - L. Shang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - H. Xu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - C. Yang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Y. Zhou
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Y. Fang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - J. Xie
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Y. Wan
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
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Wang YM, Zhang GY, Wang Y, Hu M, Zhou JJ, Sawyer A, Cao Q, Wang Y, Zheng G, Lee VWS, Harris DCH, Alexander SI. Exacerbation of spontaneous autoimmune nephritis following regulatory T cell depletion in B cell lymphoma 2-interacting mediator knock-out mice. Clin Exp Immunol 2017; 188:195-207. [PMID: 28152566 PMCID: PMC5383436 DOI: 10.1111/cei.12937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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] [Accepted: 01/17/2017] [Indexed: 02/02/2023] Open
Abstract
Regulatory T cells (Tregs ) have been recognized as central mediators for maintaining peripheral tolerance and limiting autoimmune diseases. The loss of Tregs or their function has been associated with exacerbation of autoimmune disease. However, the temporary loss of Tregs in the chronic spontaneous disease model has not been investigated. In this study, we evaluated the role of Tregs in a novel chronic spontaneous glomerulonephritis model of B cell lymphoma 2-interacting mediator (Bim) knock-out mice by transient depleting Tregs . Bim is a pro-apoptotic member of the B cell lymphoma 2 (Bcl-2) family. Bim knock-out (Bim-/- ) mice fail to delete autoreactive T cells in thymus, leading to chronic spontaneous autoimmune kidney disease. We found that Treg depletion in Bim-/- mice exacerbated the kidney injury with increased proteinuria, impaired kidney function, weight loss and greater histological injury compared with wild-type mice. There was a significant increase in interstitial infiltrate of inflammatory cells, antibody deposition and tubular damage. Furthermore, the serum levels of cytokines interleukin (IL)-2, IL-4, IL-6, IL-10, IL-17α, interferon (IFN)-γ and tumour necrosis factor (TNF)-α were increased significantly after Treg depletion in Bim-/- mice. This study demonstrates that transient depletion of Tregs leads to enhanced self-reactive T effector cell function followed by exacerbation of kidney disease in the chronic spontaneous kidney disease model of Bim-deficient mice.
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Affiliation(s)
- Y. M. Wang
- Centre for Kidney ResearchThe Children's Hospital at WestmeadWestmeadNSWAustralia
| | - G. Y. Zhang
- Centre for Kidney ResearchThe Children's Hospital at WestmeadWestmeadNSWAustralia
| | - Y. Wang
- Centre for Transplantation and Renal ResearchUniversity of Sydney at Westmead Millennium InstituteWestmeadNSWAustralia
| | - M. Hu
- Centre for Transplantation and Renal ResearchUniversity of Sydney at Westmead Millennium InstituteWestmeadNSWAustralia
| | - J. J. Zhou
- Centre for Kidney ResearchThe Children's Hospital at WestmeadWestmeadNSWAustralia
| | - A. Sawyer
- Centre for Kidney ResearchThe Children's Hospital at WestmeadWestmeadNSWAustralia
| | - Q. Cao
- Centre for Transplantation and Renal ResearchUniversity of Sydney at Westmead Millennium InstituteWestmeadNSWAustralia
| | - Y. Wang
- Centre for Transplantation and Renal ResearchUniversity of Sydney at Westmead Millennium InstituteWestmeadNSWAustralia
| | - G. Zheng
- Centre for Transplantation and Renal ResearchUniversity of Sydney at Westmead Millennium InstituteWestmeadNSWAustralia
| | - V. W. S. Lee
- Centre for Transplantation and Renal ResearchUniversity of Sydney at Westmead Millennium InstituteWestmeadNSWAustralia
| | - D. C. H. Harris
- Centre for Transplantation and Renal ResearchUniversity of Sydney at Westmead Millennium InstituteWestmeadNSWAustralia
| | - S. I. Alexander
- Centre for Kidney ResearchThe Children's Hospital at WestmeadWestmeadNSWAustralia
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Yang H, Zhang B, Li R, Zheng G, Zivkovic V. Particle dynamics in avalanche flow of irregular sand particles in the slumping regime of a rotating drum. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.01.064] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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