1
|
Liu J, Meng H, Mao Y, Zhong L, Pan W, Chen Q. IL-36 Regulates Neutrophil Chemotaxis and Bone Loss at the Oral Barrier. J Dent Res 2024; 103:442-451. [PMID: 38414292 DOI: 10.1177/00220345231225413] [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: 02/29/2024] Open
Abstract
Tissue-specific mechanisms regulate neutrophil immunity at the oral barrier, which plays a key role in periodontitis. Although it has been proposed that fibroblasts emit a powerful neutrophil chemotactic signal, how this chemotactic signal is driven has not been clear. The objective of this study was to investigate the site-specific regulatory mechanisms by which fibroblasts drive powerful neutrophil chemotactic signals within the oral barrier, with particular emphasis on the role of the IL-36 family. The present study found that IL-36γ, agonist of IL-36R, could promote neutrophil chemotaxis via fibroblast. Single-cell RNA sequencing data disclosed that IL36G is primarily expressed in human and mouse gingival epithelial cells and mouse neutrophils. Notably, there was a substantial increase in IL-36γ levels during periodontitis. In vitro experiments demonstrated that IL-36γ specifically activates gingival fibroblasts, leading to chemotaxis of neutrophils. In vivo experiments revealed that IL-36Ra inhibited the infiltration of neutrophils and bone resorption, while IL-36γ promoted their progression in the ligature-induced periodontitis mouse model. In summary, these data elucidate the function of the site-enriched IL-36γ in regulating neutrophil immunity and bone resorption at the oral barrier. These findings provide new insights into the tissue-specific pathophysiology of periodontitis and offer a promising avenue for prevention and treatment through targeted intervention of the IL-36 family.
Collapse
Affiliation(s)
- J Liu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - H Meng
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Y Mao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - L Zhong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - W Pan
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Q Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| |
Collapse
|
2
|
Di Renna T, Burke E, Bhatia A, Clarke H, Flamer D, Flannery J, Furlan A, Kumbhare D, Khan J, Ladha K, Meng H, Smith A, Sussman D, Bosma R. Improving access to chronic pain care with central referral and triage: The 6-year findings from a single-entry model. Can J Pain 2024; 8:2297561. [PMID: 38562673 PMCID: PMC10984115 DOI: 10.1080/24740527.2023.2297561] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/17/2023] [Indexed: 04/04/2024]
Abstract
Background Despite the established efficacy of multidisciplinary chronic pain care, barriers such as inflated referral wait times and uncoordinated care further hinder patient health care access. Aims Here we describe the evolution of a single-entry model (SEM) for coordinating access to chronic pain care across seven hospitals in Toronto and explore the impact on patient care 6 years after implementation. Methods In 2017, an innovative SEM was implemented for chronic pain referrals in Toronto and surrounding areas. Referrals are received centrally, triaged by a clinical team, and assigned an appointment according to the level of urgency and the most appropriate care setting/provider. To evaluate the impact of the SEM, a retrospective analysis was undertaken to determine referral patterns, patient characteristics, and referral wait times over the past 6 years. Results Implementation of an SEM streamlined the number of steps in the referral process and led to a standardized referral form with common inclusion and exclusion criteria across sites. Over the 6-year period, referrals increased by 93% and the number of unique providers increased by 91%. Chronic pain service wait times were reduced from 299 (±158) days to 176 (±103) days. However, certain pain diagnoses such as chronic pelvic pain and fibromyalgia far exceed the average. Conclusions The results indicate that the SEM helped reduce wait times for pain conditions and standardized the referral pathway. Continued data capture efforts can help identify gaps in care to enable further health care refinement and improvement.
Collapse
Affiliation(s)
- Tania Di Renna
- Toronto Academic Pain Medicine Institute, Women’s College Hospital, Toronto, Ontario, Canada
| | - Emeralda Burke
- Toronto Academic Pain Medicine Institute, Women’s College Hospital, Toronto, Ontario, Canada
| | - Anuj Bhatia
- Department of Anesthesiology, University of Toronto, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Hance Clarke
- Department of Anesthesia and Pain Medicine, Toronto General Hospital, Toronto, Ontario, Canada
| | - David Flamer
- Department of Anesthesiology, University of Toronto, Sinai Health, Toronto, Ontario, Canada
| | - John Flannery
- Musculoskeletal Rehabilitation Program, Toronto Rehabilitation Institute, Toronto, Ontario, Canada
| | - Andrea Furlan
- Musculoskeletal Rehabilitation Program, Toronto Rehabilitation Institute, Toronto, Ontario, Canada
| | - Dinesh Kumbhare
- Musculoskeletal Rehabilitation Program, Toronto Rehabilitation Institute, Toronto, Ontario, Canada
| | - James Khan
- Department of Anesthesiology, University of Toronto, Sinai Health, Toronto, Ontario, Canada
| | - Karim Ladha
- Department of Anesthesia, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Howard Meng
- Toronto Academic Pain Medicine Institute, Women’s College Hospital, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Andrew Smith
- Department of Psychiatry, Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
| | - David Sussman
- Department of Anesthesia, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Rachael Bosma
- Toronto Academic Pain Medicine Institute, Women’s College Hospital, Toronto, Ontario, Canada
| |
Collapse
|
3
|
Hong P, Kapadia A, Lai C, Kingston W, Meng H. Timeliness to definitive treatment to avoid severe neurologic complications associated with spontaneous intracranial hypotension. Can J Anaesth 2023; 70:1854-1856. [PMID: 37594663 DOI: 10.1007/s12630-023-02554-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/06/2023] [Accepted: 06/17/2023] [Indexed: 08/19/2023] Open
Affiliation(s)
- Patrick Hong
- Department of Anesthesia, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Anish Kapadia
- Department of Medical Imaging, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Carolyn Lai
- Division of Neurosurgery, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - William Kingston
- Division of Neurology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Howard Meng
- Department of Anesthesia, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.
| |
Collapse
|
4
|
Moorthy A, Perry-Nguyen D, Zhou L, Meng H, Choi S, Niazi AU. Evaluation of the effect of erector spinae plane block catheter for traumatic rib fractures on patient experience: a quality assurance initiative. Reg Anesth Pain Med 2023:rapm-2023-104549. [PMID: 37474283 DOI: 10.1136/rapm-2023-104549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/10/2023] [Indexed: 07/22/2023]
Affiliation(s)
- Aneurin Moorthy
- Department of Anesthesia, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Dylan Perry-Nguyen
- Department of Anesthesia, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Lan Zhou
- Department of Anesthesia, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Howard Meng
- Department of Anesthesia, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Stephen Choi
- Department of Anesthesia, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Ahtsham U Niazi
- Department of Anesthesia, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
5
|
Zhuang HX, Guo SJ, Meng H, Lin JS, Yang Y, Fei Q. Unilateral biportal endoscopic spine surgery for lumbar spinal stenosis: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2023; 27:4998-5012. [PMID: 37318474 DOI: 10.26355/eurrev_202306_32617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Lumbar spinal stenosis is the most common spinal degenerative disease in patients over 60 years, and the unilateral biportal endoscopic (UBE) spine surgery treatment of lumbar spinal stenosis (LSS) has achieved preliminary clinical results. This systematic review and meta-analysis aimed to reveal the clinical efficacy of UBE for LSS and provide evidence for clinical practice. MATERIALS AND METHODS PubMed, Embase, Web of Science, and Cochrane databases were searched for literature. The papers selected were those published from inception till October 2021. The selected pieces of literature were graded for evidence using the Oxford Centre for Evidence-Based Medicine: Levels of Evidence (March 2009). Outcomes measures were operation time, blood loss, complication rate, admission period, Visual Analogue Scale (VAS)-back, VAS-leg, and Oswestry Disability Index (ODI) score, and radiological outcomes. The mean comparisons were based on VAS and ODI scores. RESULTS A total of 823 patients with a single LSS segment were included from the selected nine studies. There were nine studies comparing UBE clinical outcomes and micro-endoscopic unilateral laminotomy for bilateral decompression (M-ULBD). The meta-analysis revealed that the UBE group had better VAS-leg and -back scores in the first week postoperatively [total: mean difference (MD) = -0.96, 95% confidence interval (CI): -1.19, -0.74, p < 0.00001; total: MD = -1.69, 95% CI: -1.93, -1.45, p < 0.00001], 1st month postoperatively (total: MD = -0.35, 95% CI: -0.61, -0.08, p = 0.01; total: MD = -0.40, 95% CI: -0.68, -0.12, p = 0.005), 6th month postoperatively (total: MD = -0.22, 95% CI: -0.35, -0.08, p = 0.002; total: MD = -0.24, 95% CI: -0.40, -0.07, p = 0.005), and UBE group also performed better in ODI score at 1st month postoperatively (total: MD = -3.36, 95% CI: -4.26, -2.46, p < 0.00001). There was no significant difference in VAS-leg and -back scores between both groups at the 3rd and 12th month postoperatively, and ODI scores did not significantly differ between both groups at 3, 6, and 12 months postoperatively (all p > 0.05). CONCLUSIONS UBE has achieved good preliminary clinical results and may be a minimally invasive alternative surgery for patients with single segmental LSS.
Collapse
Affiliation(s)
- H-X Zhuang
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Xicheng District, Beijing, People's Republic of China.
| | | | | | | | | | | |
Collapse
|
6
|
Meng H, Fu S, Ferreira MB, Hou Y, Pearce OM, Gavara N, Knight MM. YAP activation inhibits inflammatory signalling and cartilage breakdown associated with reduced primary cilia expression. Osteoarthritis Cartilage 2023; 31:600-612. [PMID: 36368426 DOI: 10.1016/j.joca.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 10/14/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To clarify the role of YAP in modulating cartilage inflammation and degradation and the involvement of primary cilia and associated intraflagellar transport (IFT). METHODS Isolated primary chondrocytes were cultured on substrates of different stiffness (6-1000 kPa) or treated with YAP agonist lysophosphatidic acid (LPA) or YAP antagonist verteporfin (VP), or genetically modified by YAP siRNA, all ± IL1β. Nitric oxide (NO) and prostaglandin E2 (PGE2) release were measured to monitor IL1β response. YAP activity was quantified by YAP nuclear/cytoplasmic ratio and percentage of YAP-positive cells. Mechanical properties of cartilage explants were tested to confirm cartilage degradation. The involvement of primary cilia and IFT was analysed using IFT88 siRNA and ORPK cells with hypomorphic mutation of IFT88. RESULTS Treatment with LPA, or increasing polydimethylsiloxane (PDMS) substrate stiffness, activated YAP nuclear expression and inhibited IL1β-induced release of NO and PGE2, in isolated chondrocytes. Treatment with LPA also inhibited IL1β-mediated inflammatory signalling in cartilage explants and prevented matrix degradation and the loss of cartilage biomechanics. YAP activation reduced expression of primary cilia, knockdown of YAP in the absence of functional cilia/IFT failed to induce an inflammatory response. CONCLUSIONS We demonstrate that both pharmaceutical and mechanical activation of YAP blocks pro-inflammatory signalling induced by IL1β and prevents cartilage breakdown and the loss of biomechanical functionality. This is associated with reduced expression of primary cilia revealing a potential anti-inflammatory mechanism with novel therapeutic targets for treatment of osteoarthritis (OA).
Collapse
Affiliation(s)
- H Meng
- School of Engineering and Materials Science, Queen Mary University of London, London, UK.
| | - S Fu
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - M B Ferreira
- School of Engineering and Materials Science, Queen Mary University of London, London, UK
| | - Y Hou
- School of Engineering and Materials Science, Queen Mary University of London, London, UK; Centre for Predictive in Vitro Models, Queen Mary University of London, London, UK
| | - O M Pearce
- Barts Cancer Institute, School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - N Gavara
- Serra-Hunter Program, Biophysics and Bioengineering Unit, Department of Biomedicine, Medical School, University of Barcelona, Barcelona, Spain
| | - M M Knight
- School of Engineering and Materials Science, Queen Mary University of London, London, UK; Centre for Predictive in Vitro Models, Queen Mary University of London, London, UK
| |
Collapse
|
7
|
Peng Y, Meng H, Li PX, Jiang YF, Fu XB. [Research advances of stem cell-based tissue engineering repair materials in promoting the healing of chronic refractory wounds on the body surface]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:290-295. [PMID: 37805728 DOI: 10.3760/cma.j.cn501225-20220407-00126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Repairing chronic refractory wounds on the body surface is a complex medical problem involving all stages of wound healing. In recent years, stem cells (SCs) and tissue engineering (TE) have brought hope for repairing chronic refractory wounds. SCs have excellent regenerative and paracrine effects; various TE strategies have the potential to repair chronic refractory wounds on the body surface and also improve the delivery efficiency of SCs. This article reviews the pathological characteristics of chronic refractory wounds, SCs used to repair chronic refractory wounds, and SC-based TE wound repair strategies.
Collapse
Affiliation(s)
- Y Peng
- Research Center for Wound Repair and Tissue Regeneration, Medical Innovation Research Department, the PLA General Hospital, Beijing 100048, China
| | - H Meng
- Research Center for Wound Repair and Tissue Regeneration, Medical Innovation Research Department, the PLA General Hospital, Beijing 100048, China
| | - P X Li
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Y F Jiang
- Department for Wound Repair and Plastic Surgery, PLA Strategic Support Force Characteristic Medical Center, Beijing 100005, China
| | - X B Fu
- Research Center for Wound Repair and Tissue Regeneration, Medical Innovation Research Department, the PLA General Hospital, Beijing 100048, China School of Medicine, Nankai University, Tianjin 300071, China
| |
Collapse
|
8
|
Dhingra P, McHardy PG, Jenkinson R, Meng H. Genicular nerve and fracture site chemical neurolysis for distal femoral fracture: a case report. Reg Anesth Pain Med 2023; 48:378-382. [PMID: 36754544 DOI: 10.1136/rapm-2022-104159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/01/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Distal femur fractures account for approximately 3%-6% of all femoral fractures. Non-operative management may be an attractive option for the elderly with significant perioperative mortality risk. Adequate pain control is a major barrier to non-operative fracture management. Chemical neurolysis has been described for analgesic management of proximal hip fractures, however no description of interventional management of distal femur fracture exists in literature. We describe a case of phenol chemical neurolysis of genicular nerves in addition to injection at the site of fracture to provide effective analgesia for distal femur fracture. CASE PRESENTATION A patient in their 90s with a witnessed mechanical fall sustained an intra-articular displaced fracture of the distal right femur shaft with extension into the distal femoral condyle. The patient elected to undergo non-surgical management given the high perioperative mortality risk. Acute pain service was involved and multimodal oral analgesics including opioids were insufficient in managing the patient's pain. The addition of femoral nerve catheter local anesthetic infusion did not sufficiently improve analgesia. Phenol chemical neurolysis of the superolateral, superomedial, inferomedial genicular nerves and of the fracture site was offered and performed. Resting pain decreased from Numerical Rating Scale 5/10 to 0/10 on postprocedure day 1. This was sustained at the 2-month timepoint. CONCLUSIONS We report the successful use of phenol neurolysis of genicular nerves and the fracture site in an elderly patient with a conservatively managed distal femur fracture. These interventions resulted in improved analgesia and achieved prolonged duration of effect.
Collapse
Affiliation(s)
- Prateek Dhingra
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Paul G McHardy
- Department of Anesthesia, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Richard Jenkinson
- Division of Orthopaedic Surgery, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Howard Meng
- Department of Anesthesia, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
9
|
Li MY, Feng Y, Guan X, Fu M, Wang CM, Jie JL, Li H, Bai YS, Li GYN, Wei W, Meng H, Guo H. [The relationship between peripheral blood mitochondrial DNA copy number and incident risk of liver cancer: a case-cohort study]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1289-1294. [PMID: 36207893 DOI: 10.3760/cma.j.cn112150-20220104-00006] [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 investigate the association between peripheral blood mitochondrial DNA copy number (mtDNAcn) and incident risk of liver cancer. Methods: At the baseline of Dongfeng-Tongji (DFTJ) cohort, 27 009 retirees were recruited from Dongfeng Motor Corporation in 2008. After excluding people without baseline DNA, with current malignant tumor and loss of follow-up, 1 173 participants were randomly selected into a sub-cohort by age-and gender-stratified sampling method at a proportion of 5% among all retirees. A total of 154 incident liver cancer cases identified from the cohort before December 31, 2018 (4 cases had been selected into the sub-cohort) were selected to form the case cohort of liver cancer. For the above 1 323 participants, their baseline levels of mtDNAcn in peripheral blood cells were measured by using quantitative real-time PCR method. The restricted cubic spline analysis was used to fit the shape of the association between baseline mtDNAcn and incident risk of liver cancer. The weighted Cox proportional hazards model was used to estimate the hazard ratio (HR) and 95%CI. Results: In this case-cohort study, the median follow-up time was 10.3 years. The restricted cubic spline analysis indicated that the relationship between peripheral blood mtDNAcn and incident risk of liver cancer followed a U-shaped pattern (Pnon-linear<0.05). All case-cohort population were divided into four subgroups by sex-specific quartiles of mtDNAcn levels among sub-cohort participants, when compared to participants in the Q2 subgroup of mtDNAcn, those in the Q1 subgroup (HR=2.00,95%CI:1.08-3.70) and Q4 subgroup (HR=4.11,95%CI:2.32-7.26) both had a significantly elevated risk of liver cancer, while those in the Q3 subgroup (HR=1.05,95%CI:0.54-2.05) had not. There were no significant multiply interaction effects of aging, gender, tobacco smoking, alcohol drinking and history of chronic hepatitis on the above association (Pinteraction>0.05). Conclusion: Both extremely low and high baseline level of mtDNAcn in peripheral blood cells are associated with an increased risk of incident liver cancer, but the underlying mechanisms need to be further clarified.
Collapse
Affiliation(s)
- M Y Li
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Feng
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - X Guan
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Fu
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C M Wang
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J L Jie
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Li
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y S Bai
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G Y N Li
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - W Wei
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Meng
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Guo
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| |
Collapse
|
10
|
Wang T, You F, Li Y, Xiang S, Wu H, Meng H, Yang N, Zhang B, Yang L. 759P Preconditioning with irradiation enhances efficacy of B7-H3-CAR-T in treating solid tumor models. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
11
|
Ling J, Tang H, Meng H, Wu L, Zhu L, Zhu S. Two-year outcomes of Roux-en-Y gastric bypass vs medical treatment in type 2 diabetes with a body mass index lower than 32.5 kg/m 2: a multicenter propensity score-matched analysis. J Endocrinol Invest 2022; 45:1729-1740. [PMID: 35596918 DOI: 10.1007/s40618-022-01811-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/25/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Roux-en-Y gastric bypass (RYGB) has been widely reported to be safe and feasible, and has a powerful effect on improving metabolism and weight loss in patients with a high body mass index (BMI). A few studies have focused on the comparison of RYGB with medical treatment in type 2 diabetes (T2D) patients with a lower BMI. OBJECTIVES To compare the metabolic effects and safety of RYGB versus medical treatment during a 2 years follow-up in T2D patients with a BMI of 25 to 32.5 kg/m2. METHODS This retrospective and multicenter cohort study participants were extracted from the T2D patients with a lower BMI (25-32.5 kg/m2) from three bariatric centers between 2009 and 2018. Propensity score matching (PSM) was used to minimize bias, and each patient in the surgical group was matched 1:2 to the patients in the medical group with the closest propensity score. Finally, 71 patients who received RYGB and 142 patients who underwent medical treatment with a 2 years follow-up were enrolled to compare the effects of RYGB and medical treatment. The primary endpoint was achievement of the triple endpoint (the simultaneous achievement of hemoglobin A1c (HbA1c) < 7.0%, fasting low-density lipoprotein cholesterol (LDL-C) < 100 mg/dL (2.6 mmol/L), and systolic blood pressure (SBP) < 130 mmHg at the year-1 visit). Changes in weight, BMI, medication usage, complications, and adverse events were assessed. RESULTS In total, 213 patients (mean age of 47.4 ± 9.5 years, 70.4% male, mean BMI of 28.6 ± 2.2 kg/m2) were included in this study. At the end of the first year, 17 patients (23.9%) in the surgical group and 10 (7.0%) in the medical group had achieved the composite triple endpoint (OR 4.64; 95% CI 1.82-11.81; p = 0.001). Additionally, 43 patients (60.6%) in the surgical group and 11 patients (19.7%) in the medical group experienced remission of T2D. However, more complications were observed in the surgical group (36 vs. 22, p < 0.01). CONCLUSIONS Among T2D patients with a BMI between 25.0 and 32.5 kg/m2, RYGB was more effective than medical treatment in resolving metabolic disorders and also resulted in more complications. The risk for complications should be considered in the clinical decision-making process for T2D patients with a low BMI.
Collapse
Affiliation(s)
- J Ling
- Department of Metabolic and Bariatric Surgery, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Yuelu District, Changsha, 410013, China
| | - H Tang
- Department of Metabolic and Bariatric Surgery, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Yuelu District, Changsha, 410013, China
| | - H Meng
- Department of General Surgery, The China-Japan Friendship Hospital, Beijing, China
| | - L Wu
- Department of Metabolic Surgery, The Jinshazhou Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - L Zhu
- Department of Metabolic and Bariatric Surgery, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Yuelu District, Changsha, 410013, China.
| | - S Zhu
- Department of Metabolic and Bariatric Surgery, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Yuelu District, Changsha, 410013, China.
| |
Collapse
|
12
|
Meng H, Lu V, Khan W. 111 Adipose Tissue-Derived Mesenchymal Stem Cells as a Potential Restorative Treatment for Cartilage Defects: A PRISMA Review and Meta-Analysis. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Abstract
Aim
Joint damage through trauma or degeneration causes cartilage defects, leading to osteoarthritis (OA). Current therapies relieve symptoms or replaces damaged joint, which is costly and fraught with complications. Mesenchymal stem cells (MSCs) have immunomodulatory properties and low immunogenicity, making them a novel avenue for research for OA treatment. This systematic review investigates whether adipose derived MSC (AMSCs) can treat cartilage defects.
Method
A systematic search was performed on MEDLINE, EMBASE, Cochrane Library, Scopus, Web of Science. Clinical, imaging, functional outcomes were extracted from nineteen included studies. Inclusion criteria was studies conducted on human populations that compared effects of AMSCs on cartilage regeneration to non-exposed controls. Studies conducted on animals, ex vivo studies, in vitro studies were excluded.
Results
Nine studies reported improved Visual Analogue Scale (VAS) scores (mean difference -3.30; 95% CI:-3.72,-2.89; p<0.001). Eight studies reported improved Knee injury and Osteoarthritis Outcome Score (KOOS) in five subscales. Pooled analysis of Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores in seven studies revealed an improvement (mean difference -25.52; 95% CI:-30.93,-20.10; p<0.001). Cartilage regeneration was assessed using Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) score. All studies reported improved regeneration, with a pooled end-point score of 68.12 (95% CI:62.18–74.05; p<0.001).
Conclusions
AMSCs are effective therapeutic agents for cartilage defects. We recommend researchers to determine roles of biochemical components that facilitate AMSC-mediated cartilage repair. Establishing the most efficient methods for MSC extraction, culture, delivery, and performing studies with long follow-up times enable future research to provide evidence needed to bring AMSC-based therapies into the market.
Collapse
Affiliation(s)
- H Meng
- Chinese University of Hong Kong , Hong Kong , Hong Kong
| | - V Lu
- University of Cambridge , Cambridge , United Kingdom
| | - W Khan
- Addenbrooke's Hospital , Cambridge , United Kingdom
| |
Collapse
|
13
|
Meng H, Cheng IT, Yan BP, Lee APW, So H, Tam LS. POS0625 VASCULAR EFFECT OF INFLAMMATORY BURDEN IN EARLY RHEUMATOID ARTHRITIS PATIENTS - A 5-YEAR PROSPECTIVE STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRheumatoid arthritis (RA) and psoriatic arthritis (PsA) are associated with accelerated atherosclerosis driven by chronic Inflammation. We have previously reported that cumulative inflammatory burden, as reflected by cumulative averages of repeated measures of erythrocyte sedimentation rate (ca-ESR), was associated with increased arterial stiffness in PsA patients (1).ObjectivesTo ascertain whether inflammatory burden over time is associated with long-term vascular outcome in early RA (ERA) patients.MethodsIn this 5-year prospective study, consecutive ERA patients without overt cardiovascular disease were recruited. All patients received tight-control treatment in the first year followed by stand-of-care management subsequently. Subclinical atherosclerosis and arterial stiffness progression were assessed using high-resolution carotid ultrasound (US) and brachial-ankle pulse wave velocity (PWV) respectively at baseline, year 1 and year 5. The primary outcome was subclinical atherosclerosis progression (AP+), defined as incident plaque in a segment without plaque before, or an increased number of plaques in a segment, and/or maximum carotid intima-media thickness (max cIMT) over 0.9 mm at year 5. Secondary outcome was the change in PWV over a period of 5 years. ESR level was measured during each clinic visit. Inflammatory burden was measured by cumulative averages of the area under the curve for erythrocyte sedimentation rate (ESR) over a period of 5 years.ResultsOne-hundred and four ERA patients (age: 52±11 years, 81(78%) female) who completed 5 years of follow-up were included in this analysis. Significant improvement in disease activity was observed (DAS-ESR at baseline: 5.8±0.9 vs 3.2±1.2 at year 5, p<0.001). Forty-two patients (40.4%) had AP+. The AP+ group had higher ca-ESR (37.6±16.4 vs 32.0±17.1, p=0.106) and baseline Framingham risk score (FRS) (13.3±12.5 vs 5.5±6.6, p<0.001). Multivariate logistic regression analysis revealed that a higher ca-ESR was associated with AP+ (OR=1.03, 95%CI: 1.00-1.06, p=0.038) after adjustment for baseline high risk Framingham risk score (FRS≥20%) and baseline triglycerides level (Table 1). Similarly, PWV increased from 1461±285cm/s to 1559±309cm/s (p<0.001) after 5 years. Higher ca-ESR correlated with PWV progression (r=-0.211, p=0.032). Using multivariate logistic regression analysis, ca-ESR was associated with arterial stiffness progression ((β=2.94, 95%CI: 0.80 to 5.08, p=0.007) after adjusting for symptom duration, presence of rheumatoid factor and FRS.Table 1.Univariable analysis on baseline clinical characters and progression of subclinical atherosclerosis parametersAP+ba PWV changeUnivariate modelMultivariate modelUnivariate modelMultivariate modelORp ValueORp Valueβp Valueβp Value95% CI95% CI95% CI95% CISymptom duration0.990.7045.620.089*0.92-1.06-0.88-12.131RF positive0.990.69284.040.068*84.250.0490.92-1.06-6.48-174.550.38-168.12Baseline Triglycerides3.190.009*3.480.008*-39.050.2661.34-7.611.38-8.76-108.25-30.14FRS, 20%5.970.031*5.650.500-164.110.013*-149.480.017*1.17-30.391.00-31.80-292.67- -35.55-1.25-10.87ca-ESR1.020.1061.030.038*3.120.005*2.780.008*1.00-1.041.00-1.060.97-5.270.73-4.82*Statistically significant at p < 0.05.RF positive: Rheumatoid factor positive, FRS, 20%: Framingham risk score ≥20%, caESR: cumulative average-Erythrocyte sedimentation rate.ConclusionPersistent inflammation was an independent predictor of subclinical atherosclerosis and arterial stiffness progression in ERA. Effective long-term suppression of inflammation is required to minimize cardiovascular risk.References[1]Shen J, Shang Q, Li EK, Leung Y-Y, Kun EW, Kwok L-W, et al. Cumulative inflammatory burden is independently associated with increased arterial stiffness in patients with psoriatic arthritis: a prospective study. Arthritis research & therapy. 2015;17(1):75.AcknowledgementsI have no acknowledgments to declare.Disclosure of InterestsNone declared
Collapse
|
14
|
Meng H, Lam SHM, So H, Tam LS. POS0323 RISK FACTORS FOR MAJOR CARDIOVASCULAR EVENTS (MACE) IN INFLAMMATORY ARTHRITIS: A TIME-DEPENDENT ANALYSIS ON INFLAMMATORY BURDEN, USE OF NSAIDs, STEROID AND DMARDs. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundInflammatory arthritis (IA) including rheumatoid arthritis (RA), psoriatic arthritis (PsA) and ankylosing spondylarthritis (AS) are associated with accelerated atherosclerosis due to systematic inflammation.ObjectivesTo elucidate whether inflammatory burden (c-reactive protein [CRP] and erythrocyte sedimentation rate [ESR] levels) and drugs used to suppress inflammation (disease modifying anti-rheumatic drugs [DMARDs] and non-steroidal anti-inflammatory drugs [NSAIDs]) over time are independently associated with major cardiovascular events (MACE) in patients with IA.MethodsA population-based cohort of IA patients were identified in the citywide Clinical Data Analysis and Reporting System (CDARS) of the Hong Kong Hospital Authority. IA patients recruited from 2006 to 2016 were followed until the end of 2018. The outcome was occurrence of a first MACE, defined as unstable angina, acute myocardial infarction, stroke/transient ischemic attack or death from cardiovascular causes. Cox proportional hazard models with time-varying CRP and ESR levels and drugs used were analyzed to identify the risk of having MACE in IA patients.ResultsA total of 17,732 (12050 RA patients, 1789 PsA patients and 3893 AS patients) patients with IA were recruited. After a mean follow-up of 8.7 ± 3.1 years, 1,069 (6.0 %) patients developed a first MACE. At baseline, the MACE group were older (68±12 vs 53±15, p<0.001), had more traditional cardiovascular risk factors, higher levels of CRP (2.7±1.5 vs 1.7±1.3, p<0.001) and ESR (57.8±32.4 vs 42.5±29.2, p<0.001), and less exposure to biologic DMARDs (bDMARDs) (1.0% vs 3.0%, p<0.001) and non-selective NSAIDs (nsNSAIDs) (63.4% vs 71.1%, p<0.001). After adjusting for age, sex, baseline cardiovascular comorbidities using multivariable Cox regression analysis, IA patients with higher inflammatory burden (as reflected by the time-varying CRP [hazard ratio {HR} 1.11, 95% confidence interval {CI} 1.10-1.12, p<0.001] and ESR levels (HR 1.02, 95% CI 1.01-1.01, p<0.001) and the use of steroid (HR 1.79-1.88) were independently associated with a higher risk of developing MACE (Table 1). In contrast, exposure to nsNSAIDs had a protective effect against MACE (HR 0.76, 95% CI 0.66-0.89, p<0.001), while bDMARDs were not associated with MACE.Table 1.Multivariable time-varying Cox regression models for the predictors of incidence of MACE in the IA patients (n=17732)Model 1 †Model 2 ‡VariablesHR (95% CI)p valueHR (95% CI)p valueMale1.92 (1.65-2.23)<0.001*1.52 (1.33-1.76)<0.001*Age1.06 (1.05-1.06)<0.001*1.06 (1.05-1.06)<0.001*Disease duration1.04 (0.97-1.08)0.0561.04 (1.01-1.08)0.016*Baseline DM1.25 (0.95-1.64)0.1081.44 (1.13-1.84)0.003*Baseline HT1.77 (1.52-2.08)<0.001*1.85 (1.59-2.16)<0.001*Baseline LP1.14 (0.92-1.41)0.2321.19 (0.98-1.46)0.081Time-varying inflammatory markersESR1.02 (1.01-1.01)<0.001*CRP1.11 (1.10-1.12)<0.001*Time-varying treatmentbDMARDs0.93 (0.68-1.27)0.6570.89 (0.65-1.22)0.478CoxII0.71 (0.53-0.96)0.027*0.79 (0.59-1.04)0.104nsNSAIDs0.76 (0.66-0.89)<0.001*0.76 (0.66-0.88)<0.001*Steroids1.88 (1.63-2.17)<0.001*1.79(1.56-2.04)<0.001**Statistically significant at p < 0.05.† and ‡ Adjusted for Age, Sex, Hypertension at baseline, diabetes mellitus at baseline, dyslipidemia at baseline, bDMARDs, CoxII, non-selective NSAIDs, Steroids.CRP, C-reactive protein; ESR: Erythrocyte sedimentation rate; HT: hypertension; DM: diabetes mellitus; LP: Dyslipidemia; bDMARD, biological disease-modifying anti-rheumatic drug; COXII: cyclooxygenase -2 inhibitors; nsNSAIDs: non-selective nonsteroidal anti-inflammatory drugs.ConclusionIncreased inflammatory burden as reflected by elevated ESR and CRP level over time, and increased exposure to steroid were independently associated with increased risk of MACE, while the risk was significantly reduced with non-selective NSAIDs use in IA patients.Disclosure of InterestsNone declared
Collapse
|
15
|
Ma J, Zhang J, Yang Y, Zheng D, Wang X, Liang H, Zhang L, Xin Y, Ling X, Fang C, Jiang H, Meng H, Zheng W. 65P Camrelizumab combined with paclitaxel and nedaplatin as neoadjuvant therapy for locally advanced esophageal squamous cell carcinoma (ESPRIT): A phase II, single-arm, exploratory research. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
16
|
Hu J, Gao J, Liu J, Meng H, Hao N, Song Y, Ma L, Luo W, Sun J, Gao W, Meng W, Sun Y. Prospective evaluation of first-trimester screening strategy for preterm pre-eclampsia and its clinical applicability in China. Ultrasound Obstet Gynecol 2021; 58:529-539. [PMID: 33817865 DOI: 10.1002/uog.23645] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 01/11/2021] [Revised: 03/05/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVES To evaluate, in a Chinese population, the performance of a screening strategy for preterm pre-eclampsia (PE) using The Fetal Medicine Foundation (FMF)'s competing-risks model and to explore its clinical applicability in mainland China. METHODS This was a prospective, multicenter, observational cohort study including 10 899 women with singleton pregnancy who sought prenatal care at one of 13 hospitals, located in seven cities in mainland China, between 1 December 2017 and 30 December 2019. Mean arterial pressure (MAP), uterine artery pulsatility index (UtA-PI) and maternal serum levels of placental growth factor (PlGF) and pregnancy-associated plasma protein-A (PAPP-A) at 11 + 0 to 13 + 6 weeks' gestation were measured and converted into multiples of the median using Chinese reference ranges. Individualized risk for preterm PE was calculated using the FMF algorithm. Prior risk was calculated based on maternal demographic characteristics and obstetric history. We evaluated the efficiency of the screening strategy using various combinations of biomarkers and analyzed its predictive performance for a composite of placenta-associated adverse pregnancy outcomes, including PE, placental abruption, small-for-gestational age (SGA) and preterm birth, at fixed false-positive rates for preterm PE. RESULTS We identified 312 pregnancies that developed PE, of which 117 cases were diagnosed as preterm PE (< 37 weeks' gestation). There were 386 pregnancies complicated by severe composite placenta-associated adverse outcome, including preterm PE, 146 cases of severe SGA (birth weight < 3rd percentile) neonate, 61 cases with placental abruption and 109 cases of early preterm birth < 34 gestational weeks. The triple-marker model containing biomarkers MAP, UtA-PI and PAPP-A achieved, at fixed false-positive rates of 10%, 15% and 20%, detection rates for preterm PE of 65.0%, 72.7% and 76.1%, respectively, and detection rates for severe composite placenta-associated adverse outcome of 34.7%, 41.7% and 46.4%, respectively. Replacing PAPP-A with PlGF or adding PlGF to the model did not improve the performance. Of women screening positive for preterm PE at a fixed 5% false-positive rate, an estimated 30% developed at least one placenta-associated adverse pregnancy outcome, including PE, placental abruption, SGA (birth weight < 10th percentile) and preterm birth < 37 weeks. CONCLUSIONS The FMF competing-risks model for preterm PE was found to be effective in screening a mainland Chinese population. Women who screened positive for preterm PE had increased risk for other placenta-associated pregnancy complications. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- J Hu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, National Clinical Research Center for Obstetric and Gynecologic Diseases, Beijing, China
| | - J Gao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, National Clinical Research Center for Obstetric and Gynecologic Diseases, Beijing, China
| | - J Liu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, National Clinical Research Center for Obstetric and Gynecologic Diseases, Beijing, China
| | - H Meng
- Department of Ultrasonic Diagnosis, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - N Hao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, National Clinical Research Center for Obstetric and Gynecologic Diseases, Beijing, China
| | - Y Song
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, National Clinical Research Center for Obstetric and Gynecologic Diseases, Beijing, China
| | - L Ma
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, National Clinical Research Center for Obstetric and Gynecologic Diseases, Beijing, China
| | - W Luo
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, National Clinical Research Center for Obstetric and Gynecologic Diseases, Beijing, China
| | - J Sun
- Department of Obstetrics and Gynecology, General Hospital of Northern Theater Command, Shenyang, Liaoning Province, China
| | - W Gao
- Department of Obstetrics and Gynecology, Beijing Daxing People's Hospital, Beijing, China
| | - W Meng
- Department of Obstetrics and Gynecology, Tongzhou Maternal and Child Health Hospital of Beijing, Beijing, China
| | - Y Sun
- Department of Obstetrics and Gynecology, Beijing Shunyi District Maternal and Child Health Hospital, Beijing, China
| |
Collapse
|
17
|
Amin B, Atif MJ, Wang X, Meng H, Ghani MI, Ali M, Ding Y, Li X, Cheng Z. Effect of low temperature and high humidity stress on physiology of cucumber at different leaf stages. Plant Biol (Stuttg) 2021; 23:785-796. [PMID: 33900017 DOI: 10.1111/plb.13276] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 01/29/2021] [Accepted: 04/18/2021] [Indexed: 06/12/2023]
Abstract
Low temperature (LT) and high humidity (HH) are important environmental factors in greenhouses and plastic tunnels during the cold season, as they hamper plant growth and development. Here, we studied the effect of LT (day/night: 9/5 °C, 25/18 °C as control) and HH (95%, 80% as control) on young cucumber plants at the 2, 4 or 6 leaf stages. LT+HH stress resulted in a decline in shoot, root and total fresh and dry weights, and decreased Pn , gs , Tr , Fv /Fm , qP, ETR and chlorophyll, and increased MDA, H2 O2 , O2 - , NPQ and Ci as compared to the control at the 2 leaf stage. SOD, POD, CAT, APX and GR were upregulated under LT+HH stress as compared to the control at the 6 leaf stage. ABA and JA increased under LT+HH stress as compared to the control at the 6 leaf stage, while IAA and GA decreased under LT+HH stress as compared to the control at the 2 leaf stage. Our results show that LT+HH stress affects young cucumber plant photosynthetic efficiency, PSII activity, antioxidant defence system, ROS and hormone profile. Plants at the 6 leaf stage were more tolerant than at the 2 and 4 leaf stages under stress conditions.
Collapse
Affiliation(s)
- B Amin
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M J Atif
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
- Horticultural Research Institute, National Agricultural Research Centre, Islamabad, 44000, Pakistan
| | - X Wang
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - H Meng
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M I Ghani
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M Ali
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - Y Ding
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - X Li
- Tianjin Kerun Cucumber Research Institute, Tianjin, 300192, China
| | - Z Cheng
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| |
Collapse
|
18
|
Clarke H, Meng H, Ladha KS, Kotra LP. In reply: Comment on: Patient-reported outcomes in those consuming medical cannabis: a prospective longitudinal observational study in patients with chronic pain. Can J Anaesth 2021; 68:1709-1710. [PMID: 34350559 DOI: 10.1007/s12630-021-02079-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 07/14/2021] [Accepted: 07/19/2021] [Indexed: 11/28/2022] Open
Affiliation(s)
- Hance Clarke
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada.
| | - Howard Meng
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
| | - Karim S Ladha
- Department of Anesthesia, St. Michael's Hospital, Toronto, ON, Canada
| | | |
Collapse
|
19
|
Wang X, Jian W, Zhou X, Meng H, Chen Y, Yang G, Zhang S, Wang Z, Tan X, Dai Z. PD-0752 Synthetic CT generation from cone-beam CT using deep-learning for breast adaptive radiotherapy. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07031-6] [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]
|
20
|
Zhang M, Zhang M, Fu X, Meng H, Chen D, Wang M, Zhang L, Li L, Li X, Wang X, Sun Z, Yu H, Li Z, Nan F, Chang Y, Zhou Z, Yan J, Li J, Wang Y, You F, Wang Y, Xiang S, Chen Y, Pan G, Xu H, Zhang B, Yang L. A SINGLE‐ARM, OPEN‐LABEL, PILOT TRIAL OF AUTOLOGOUS CD7‐CAR‐T CELLS FOR CD7 POSITIVE RELAPSED AND REFRACTORY T‐LYMPHOBLASTIC LEUKEMIA/LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.181_2880] [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: 11/09/2022]
Affiliation(s)
- M. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - M. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Fu
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - H. Meng
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - D. Chen
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - M. Wang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - L. Zhang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - L. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - X. Wang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Sun
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - H. Yu
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - F. Nan
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Y. Chang
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Z. Zhou
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - J. Yan
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - J. Li
- The First Affiliated Hospital of Zhengzhou University Department of Oncology Zhengzhou China
| | - Y. Wang
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - F. You
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - Y. Wang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - S. Xiang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - Y. Chen
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - G. Pan
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - H. Xu
- PersonGen‐Anke Cellular Therapeutics Co., Ltd PersonGen‐Anke Cellular Therapeutics Co., Ltd Suzhou China
| | - B. Zhang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| | - L. Yang
- PersonGen BioTherapeutics (Suzhou) Co., Ltd. PersonGen BioTherapeutics (Suzhou) Co., Ltd. Suzhou China
| |
Collapse
|
21
|
Meng H, Page MG, Ajrawat P, Deshpande A, Samman B, Dominicis M, Ladha KS, Fiorellino J, Huang A, Kotteeswaran Y, McClaren-Blades A, Kotra LP, Clarke H. Patient-reported outcomes in those consuming medical cannabis: a prospective longitudinal observational study in chronic pain patients. Can J Anaesth 2021; 68:633-644. [PMID: 33469735 DOI: 10.1007/s12630-020-01903-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 10/03/2020] [Accepted: 10/09/2020] [Indexed: 11/26/2022] Open
Abstract
PURPOSE We investigated patients with chronic pain seeking medical cannabis. We assessed their demographics, patterns of cannabis use, and the long-term effectiveness of cannabis on their pain and functional domains. METHODS This observational study enrolled patients between 8 September 2015 and 31 July 2018 from community-based cannabis clinics in Ontario, Canada. In addition to collecting demographic information, the primary outcomes studied were pain intensity and pain-related interference scores assessed at baseline, three, six, and 12 months. Using validated questionnaires, we also assessed anxiety, depression, quality of life (QoL), general health symptoms, neuropathic pain, self-reported opioid consumption, and adverse events. RESULTS Of the 1,000 patients consented, 757 (76%) participated at one or more of the study time points. At six and 12 months, 230 (30.4%) and 104 (13.7%) of participants were followed up, respectively. Most participants were female (62%), Caucasian (91%), and sought cannabis for pain relief (88%). Time was a significant factor associated with improvement in pain intensity (P < 0.001), pain-related interference scores (P < 0.001), QoL (P < 0.001), and general health symptoms (P < 0.001). Female sex was significantly associated with worse outcomes than male sex including pain intensity (P < 0.001) and pain-related interference (P < 0.001). The proportion of individuals who reported using opioids decreased by half, from 40.8% at baseline to 23.9% at 12 months. CONCLUSION Despite significant challenges to collecting long-term observational data on patients who attempted a trial of cannabis products, approximately one-third of patients in the cohort remained on medical cannabis for six months. In this cohort, pain intensity and pain-related interference scores were reduced and QoL and general health symptoms scores were improved compared with baseline.
Collapse
Affiliation(s)
- Howard Meng
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
| | - M Gabrielle Page
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Département d'anesthésiology et médecine de la douleur, Faculté de médecine, Université de Montréal, Montreal, QC, Canada
| | - Prabjit Ajrawat
- Department of Anesthesia, Toronto General Hospital, Toronto, ON, Canada
| | | | - Bana Samman
- Department of Anesthesia, Toronto General Hospital, Toronto, ON, Canada
| | - Mary Dominicis
- Department of Anesthesia, Toronto General Hospital, Toronto, ON, Canada
| | - Karim S Ladha
- Department of Anesthesia, St. Michael's Hospital, Toronto, ON, M5B 1W8, Canada
- Centre For Cannabinoid Therapeutics, Toronto, ON, Canada
| | - Joseph Fiorellino
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
- Department of Anesthesia, Toronto General Hospital, Toronto, ON, Canada
- Centre For Cannabinoid Therapeutics, Toronto, ON, Canada
- Transitional Pain Service, Toronto General Hospital, Toronto, ON, Canada
| | - Alexander Huang
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
- Department of Anesthesia, Toronto General Hospital, Toronto, ON, Canada
- Transitional Pain Service, Toronto General Hospital, Toronto, ON, Canada
| | - Yuvaraj Kotteeswaran
- Department of Anesthesia, Northern Ontario School of Medicine, Thunder Bay, ON, Canada
| | - Alex McClaren-Blades
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
- Department of Anesthesia, Toronto General Hospital, Toronto, ON, Canada
- Transitional Pain Service, Toronto General Hospital, Toronto, ON, Canada
| | - Lakshmi P Kotra
- Centre For Cannabinoid Therapeutics, Toronto, ON, Canada
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Hance Clarke
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada.
- Department of Anesthesia, Toronto General Hospital, Toronto, ON, Canada.
- Centre For Cannabinoid Therapeutics, Toronto, ON, Canada.
- Transitional Pain Service, Toronto General Hospital, Toronto, ON, Canada.
- Krembil Research Institute, University Health Network, Toronto, ON, Canada.
- Pain Research Unit, Department of Anesthesia and Pain Management, GoodHope Ehlers Danlos Clinic, Toronto General Hospital, Toronto, ON, M5G 2C4, Canada.
- University of Toronto Centre for the Study of Pain, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
22
|
Affiliation(s)
- H Meng
- University of Toronto, Toronto, ON, Canada
| | - A Deshpande
- University of Toronto, Toronto, ON, Canada.,University Health Network, Toronto, ON, Canada
| |
Collapse
|
23
|
Xie Z, Ye K, Chen SH, Liu L, He LC, Sang J, Meng H, Kuang R. Cellular viability and death biomarkers enables the evaluation of ocular irritation using the bovine corneal opacity and permeability assay. Toxicol Lett 2021; 340:52-57. [PMID: 33421553 DOI: 10.1016/j.toxlet.2021.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023]
Abstract
The BCOP assay is used in the identification of chemicals that cause no ocular irritation or serious damage. However, this method has not been found to adequately discriminate between mild from moderate ocular irritation (category 2A/2B), based upon the animal data. In this study, we aimed to establish methods for discerning ocular irritation by chemicals. We used the BCOP assay and the fluorescence staining methods based on biomarkers for cellular viability and death. The potential for ocular irritation by 12 chemicals from different UN GHS categories was assessed by the BCOP assay. Cryosections of bovine corneas were obtained. The necrotic nucleus was TUNEL labeled, cytoplasmic f-actin was stained by phalloidin while the nucleus was stained by DAPI. The depth of injury (DOI) was then measured. According to BCOP assay, in vivo data of Draize eye test and DOI, the results showed that category NC irritants caused ≤ 10 % epithelial DOI, irritants of category 2B caused >10 % epithelial DOI and showed no stromal damage, while category 2A showed damage to the stroma. Based on these results, the GHS prediction model could distinguish between GHS 2A and 2B. Authenticating the viability of BCOP by DOI measurements can provide a more reliable basis for classifying ocular irritants.
Collapse
Affiliation(s)
- Z Xie
- Zhejiang Institute for Food and Drug Control, Hangzhou, 310052, China.
| | - K Ye
- Zhejiang Research Institute of Chinese Medicine Co.,Ltd., Hangzhou, 310023, China
| | - S H Chen
- Zhejiang Institute for Food and Drug Control, Hangzhou, 310052, China
| | - L Liu
- Zhejiang Institute for Food and Drug Control, Hangzhou, 310052, China
| | - L C He
- Zhejiang Institute for Food and Drug Control, Hangzhou, 310052, China
| | - J Sang
- Zhejiang Institute for Food and Drug Control, Hangzhou, 310052, China
| | - H Meng
- Zhejiang Institute for Food and Drug Control, Hangzhou, 310052, China
| | - R Kuang
- Zhejiang Institute for Food and Drug Control, Hangzhou, 310052, China
| |
Collapse
|
24
|
Fu S, Meng H, Inamdar S, Das B, Gupta H, Wang W, Thompson CL, Knight MM. Activation of TRPV4 by mechanical, osmotic or pharmaceutical stimulation is anti-inflammatory blocking IL-1β mediated articular cartilage matrix destruction. Osteoarthritis Cartilage 2021; 29:89-99. [PMID: 33395574 PMCID: PMC7799379 DOI: 10.1016/j.joca.2020.08.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 08/04/2020] [Accepted: 08/11/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Cartilage health is maintained in response to a range of mechanical stimuli including compressive, shear and tensile strains and associated alterations in osmolality. The osmotic-sensitive ion channel Transient Receptor Potential Vanilloid 4 (TRPV4) is required for mechanotransduction. Mechanical stimuli inhibit interleukin-1β (IL-1β) mediated inflammatory signalling, however the mechanism is unclear. This study aims to clarify the role of TRPV4 in this response. DESIGN TRPV4 activity was modulated glycogen synthase kinase (GSK205 antagonist or GSK1016790 A (GSK101) agonist) in articular chondrocytes and cartilage explants in the presence or absence of IL-1β, mechanical (10% cyclic tensile strain (CTS), 0.33 Hz, 24hrs) or osmotic loading (200mOsm, 24hrs). Nitric oxide (NO), prostaglandin E2 (PGE2) and sulphated glycosaminoglycan (sGAG) release and cartilage biomechanics were analysed. Alterations in post-translational tubulin modifications and primary cilia length regulation were examined. RESULTS In isolated chondrocytes, mechanical loading inhibited IL-1β mediated NO and PGE2 release. This response was inhibited by GSK205. Similarly, osmotic loading was anti-inflammatory in cells and explants, this response was abrogated by TRPV4 inhibition. In explants, GSK101 inhibited IL-1β mediated NO release and prevented cartilage degradation and loss of mechanical properties. Upon activation, TRPV4 cilia localisation was increased resulting in histone deacetylase 6 (HDAC6)-dependent modulation of soluble tubulin and altered cilia length regulation. CONCLUSION Mechanical, osmotic or pharmaceutical activation of TRPV4 regulates HDAC6-dependent modulation of ciliary tubulin and is anti-inflammatory. This study reveals for the first time, the potential of TRPV4 manipulation as a novel therapeutic mechanism to supress pro-inflammatory signalling and cartilage degradation.
Collapse
Affiliation(s)
- S Fu
- Centre for Predictive In Vitro Models, School of Engineering and Materials Science, Queen Mary University of London, UK.
| | - H Meng
- Centre for Predictive In Vitro Models, School of Engineering and Materials Science, Queen Mary University of London, UK.
| | - S Inamdar
- Centre for Predictive In Vitro Models, School of Engineering and Materials Science, Queen Mary University of London, UK.
| | - B Das
- Centre for Predictive In Vitro Models, School of Engineering and Materials Science, Queen Mary University of London, UK
| | - H Gupta
- Centre for Predictive In Vitro Models, School of Engineering and Materials Science, Queen Mary University of London, UK.
| | - W Wang
- Centre for Predictive In Vitro Models, School of Engineering and Materials Science, Queen Mary University of London, UK.
| | - C L Thompson
- Centre for Predictive In Vitro Models, School of Engineering and Materials Science, Queen Mary University of London, UK.
| | - M M Knight
- Centre for Predictive In Vitro Models, School of Engineering and Materials Science, Queen Mary University of London, UK.
| |
Collapse
|
25
|
Yang KX, Zhou H, Ding JM, He C, Niu Q, Gu CJ, Zhou ZX, Meng H, Huang QZ. Copy number variation in HOXB7 and HOXB8 involves in the formation of beard trait in chickens. Anim Genet 2020; 51:958-963. [PMID: 33058257 DOI: 10.1111/age.13011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/24/2020] [Accepted: 09/19/2020] [Indexed: 12/24/2022]
Abstract
The derived feathering phenotype beard in domestic birds is an ideal resource to investigate the genetic mechanisms controlling feather development and differentiation. In the present study, we performed a GWAS and QTL linkage analysis on the trait of beard in Beijing fatty chicken. One major QTL (1.2-1.9 Mb) was identified that could explain 34% of the phenotypic variation. The copy number variation that was copied from the region (GGA27:3 578 409-3 592 890 bp) containing homebox B7 (HOXB7) and homebox B8 (HOXB8) was validated to be only exhibited in the genome of bearded chickens. Protein-protein interaction analysis indicated that HOXB7 and HOXB8 proteins could highly interact with the HOXB family members, including HOXB4, HOXB5 and HOXB6, whose genomic locations near HOXB7 and HOXB8 suggested that they may regulate their family members to involve in the formation of the beard trait in chickens. Overall, our work provides basic data for understanding the mechanisms regulating beard development and differentiation.
Collapse
Affiliation(s)
- K X Yang
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| | - H Zhou
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - J M Ding
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - C He
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Q Niu
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| | - C J Gu
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| | - Z X Zhou
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| | - H Meng
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Q Z Huang
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| |
Collapse
|
26
|
Meng H, Li YY, Han D, Zhang CY. MiRNA-93-5p promotes the biological progression of gastric cancer cells via Hippo signaling pathway. Eur Rev Med Pharmacol Sci 2020; 23:4763-4769. [PMID: 31210305 DOI: 10.26355/eurrev_201906_18058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To clarify the influence of microRNA-93-5p (miRNA-93-5p) on biological behaviors of gastric cancer (GC) cells and its regulatory effect on Hippo pathway. MATERIALS AND METHODS SGC-7901 and HGC-27 cells were used for establishing miRNA-93-5p overexpression and downregulation model through transfection of miRNA-93-5p mimics or inhibitor, respectively. Relative levels of genes in Hippo pathway were determined in GC cells transfected with miRNA-93-5p mimics or inhibitor by quantitative Real-time polymerase chain reaction (qRT-PCR). Regulatory effects of miRNA-93-5p on proliferative, migratory and invasive abilities of GC cells were evaluated by cell counting kit-8 (CCK-8), colony formation and transwell assay, respectively. RESULTS MiRNA-93-5p was markedly upregulated by transfection of miRNA-93-5p mimics into SGC-7901 cells, which was downregulated by transfection of miRNA-93-5p inhibitor into HGC-27 cells. Overexpression of miRNA-93-5p accelerated GC cells to proliferate, migrate and invade. Meanwhile, miRNA-93-5p overexpression in GC cells upregulated downstream genes in Hippo pathway, including CDX2, FOXM1 and CTGF. CONCLUSIONS MiRNA-93-5p enhances proliferative, migratory and invasive abilities of GC cells by activating Hippo pathway, which may serve as a diagnostic and therapeutic target for GC.
Collapse
Affiliation(s)
- H Meng
- Department of Gastroenterology, Shanxian Central Hospital of Shangdong Province (The Huxi Affiliated Hospital of Jining Medical College), Shanxian County, China.
| | | | | | | |
Collapse
|
27
|
Slick R, Tinklenberg J, Meng H, Beatka M, Prom M, Ott E, Montanaro F, Zhang L, Granzier H, Hardeman E, Geurts A, Lawlor M. CONGENITAL MYOPATHIES 1 – NEMALINE. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.030] [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: 11/16/2022]
|
28
|
Tinklenberg J, Slick R, Sutton J, Prom M, Ott E, Danielson S, Avond MV, Beatka M, Meng H, Grzybowski M, Heisner J, Ross J, Ochala J, Nowak K, Zhang L, Geurts A, Stowe D, Montanaro F, Lawlor M. CONGENITAL MYOPATHIES 1 – NEMALINE. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.028] [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: 10/23/2022]
|
29
|
Fan X, Wang Q, Zhou M, Liu F, Shen H, Wei Z, Wang F, Tan C, Meng H. Humidity sensor based on a graphene oxide-coated few-mode fiber Mach-Zehnder interferometer. Opt Express 2020; 28:24682-24692. [PMID: 32907003 DOI: 10.1364/oe.390207] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
A relative humidity sensor based on a graphene oxide-coated few-mode fiber Mach-Zehnder interferometer (MZI) is proposed in this paper. The MZI was made by splicing a segment of the few-mode fiber (FMF) between two segments of a no-core fiber (NCF) and two segments of a single mode fiber (SMF) located outside the two NCFs. The core and cladding of the FMF acted as interferometric arms, while the NCFs acted as couplers for splitting and recombining light due to mismatch of mode field diameter. The cladding of the FMF was corroded with hydrofluoric acid, and a layer of graphene oxide (GO) film was coated on the corroded cladding of FMF via the natural deposition method. The refractive index of GO varied upon absorption the water molecules. As a result, the phase difference of the MZI varied and the wavelength of the resonant dip shifted with a change in the ambient relative humidity (RH). High humidity sensitivity of 0.191 and 0.061 nm/%RH in the RH range of 30-55% and 55-95%, respectively, were achieved experimentally. The high sensitivity, compact size, and simple manufacturing of the proposed sensor could offer attractive applications in fields of chemical sensors and biochemical detection.
Collapse
|
30
|
Meng H, Mo Y, Cheng T, Zhang H, Wu L, Shah NK, Shu C, He J. Spontaneous rupture of kidney during pregnancy. J BIOL REG HOMEOS AG 2020; 34:643-646. [PMID: 32460466 DOI: 10.23812/20-84-l-34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- H Meng
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin China
| | - Y Mo
- Department of Obstetrics and Gynecology, The Norman Bethune Medical Institute of Jilin University, Changchun, Jilin China
| | - T Cheng
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin China
| | - H Zhang
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin China
| | - L Wu
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin China
| | - N K Shah
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin China
| | - C Shu
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin China
| | - J He
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin China
| |
Collapse
|
31
|
Mu C, Lee S, Risal PG, Vigoureux TF, Bugos J, Meng H. 0341 Preliminary Effects of a Music Intervention on Actigraphy-Measured Sleep Among Older Adults with Dementia. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Music may benefit sleep and daytime alertness by decreasing stress, increasing attention, and potentially, slowing the progression of dementia. This study examined preliminary effects of a group-based music intervention on sleep health among older adults with dementia.
Methods
Participants were older adults with dementia living in an assisted living facility (n=9; Mage=80.11; Mrange=63−89 years). Cohort 1 (n=4) received the intervention in the morning and cohort 2 (n=5) received the intervention in the afternoon. Participants completed a 4-week intervention protocol (12 sessions) along with a one-week actigraphy sleep assessment before and after the intervention. Informed by sleep literature, we constructed a composite sleep health score encompassing Regularity, Satisfaction or quality, Alertness, Timing, Efficiency, and Duration (higher scores indicating more daily sleep problems). Using descriptive statistics and multilevel modeling, we evaluated preliminary effects of the intervention on overall sleep health and each of the sleep dimensions.
Results
Six out of nine participants exhibited a decrease in overall sleep problems at post-intervention. All 4 participants in cohort 1 showed improvement in overall sleep health at post-intervention. Specifically, in cohort 1, participants exhibited a decline in nightly sleep problems, decreased daytime nap duration, and number of naps. In contrast, while two out of five participants in cohort 2 exhibited improvement in overall sleep health, the remainder of the participants exhibited no improvement in daily sleep problems, especially in nap domains. Across cohorts, those younger in age, with vascular dementia, lower weight, and not taking sleep or hypertension related medications tended to respond better to the intervention.
Conclusion
Our preliminary results demonstrate the feasibility and potential benefit of a group-based music intervention in improving overall sleep health among older patients with dementia. Implications for conducting community-based non-pharmacological interventions to improve sleep and daytime functioning among older adults with dementia will be discussed.
Support
This work was supported, in part, by the Florida Department of Health Ed and Ethel Moore Alzheimer’s Disease Research Award (PI: Meng, Grant #9AZ28).
Collapse
Affiliation(s)
- C Mu
- University of South Florida, School of Aging Studies, Tampa, FL
| | - S Lee
- University of South Florida, School of Aging Studies, Tampa, FL
| | - P G Risal
- University of South Florida, School of Aging Studies, Tampa, FL
| | - T F Vigoureux
- University of South Florida, School of Aging Studies, Tampa, FL
| | - J Bugos
- University of South Florida, School of Aging Studies, Tampa, FL
| | - H Meng
- University of South Florida, School of Aging Studies, Tampa, FL
| |
Collapse
|
32
|
Meng H, Ma KJ, Dong LM, Li CT, Xiao B, Xu LY, Huang P, Xie JH. Research Progress on Age Estimation Based on DNA Methylation. Fa Yi Xue Za Zhi 2019; 35:537-544. [PMID: 31833286 DOI: 10.12116/j.issn.1004-5619.2019.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Indexed: 11/30/2022]
Abstract
Abstract Age estimation is of great significance in the fields of criminal investigation and forensic identification. It can provide the age information of individuals to judicial departments to facilitate the development of judicial work. In recent years, age estimation methods expanded from the morphological level to the molecular biology level. With the rapid development of epigenetics represented by DNA methylation, and the advancement of DNA methylation detection technology together with the detection platform, many age estimation methods based on DNA methylation biomarkers, or using several biological fluids, such as blood, blood stains, saliva, semen stains, etc. are developed. Currently, researches related to age estimation based on DNA methylation are relatively widely carried out. This paper summarizes the researches on age estimation based on DNA methylation, in order to provide references for related studies and forensic applications.
Collapse
Affiliation(s)
- H Meng
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai 200083, China.,Institute of Forensic Science, Shanghai Municipal Public Security Bureau, Shanghai 200083, China.,Department of Forensic Medicine, Fudan University, Shanghai 200032, China
| | - K J Ma
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai 200083, China.,Institute of Forensic Science, Shanghai Municipal Public Security Bureau, Shanghai 200083, China
| | - L M Dong
- Minhang Branch of Shanghai Municipal Public Security Bureau, Shanghai 201108, China
| | - C T Li
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - B Xiao
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai 200083, China.,Institute of Forensic Science, Shanghai Municipal Public Security Bureau, Shanghai 200083, China
| | - L Y Xu
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai 200083, China.,Institute of Forensic Science, Shanghai Municipal Public Security Bureau, Shanghai 200083, China
| | - P Huang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - J H Xie
- Department of Forensic Medicine, Fudan University, Shanghai 200032, China
| |
Collapse
|
33
|
Rajabzadeh-Oghaz H, Wang J, Varble N, Sugiyama SI, Shimizu A, Jing L, Liu J, Yang X, Siddiqui AH, Davies JM, Meng H. Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms. AJNR Am J Neuroradiol 2019; 40:1939-1946. [PMID: 31649161 DOI: 10.3174/ajnr.a6259] [Citation(s) in RCA: 5] [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] [Received: 12/05/2018] [Accepted: 08/23/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE In patients with SAH with multiple intracranial aneurysms, often the hemorrhage pattern does not indicate the rupture source. Angiographic findings (intracranial aneurysm size and shape) could help but may not be reliable. Our purpose was to test whether existing parameters could identify the ruptured intracranial aneurysm in patients with multiple intracranial aneurysms and whether composite predictive models could improve the identification. MATERIALS AND METHODS We retrospectively collected angiographic and medical records of 93 patients with SAH with at least 2 intracranial aneurysms (total of 206 saccular intracranial aneurysms, 93 ruptured), in which the ruptured intracranial aneurysm was confirmed through surgery or definitive hemorrhage patterns. We calculated 13 morphologic and 10 hemodynamic parameters along with location and type (sidewall/bifurcation) and tested their ability to identify rupture in the 93 patients. To build predictive models, we randomly assigned 70 patients to training and 23 to holdout testing cohorts. Using a linear regression model with a customized cost function and 10-fold cross-validation, we trained 2 rupture identification models: RIMC using all parameters and RIMM excluding hemodynamics. RESULTS The 25 study parameters had vastly different positive predictive values (31%-87%) for identifying rupture, the highest being size ratio at 87%. RIMC incorporated size ratio, undulation index, relative residence time, and type; RIMM had only size ratio, undulation index, and type. During cross-validation, positive predictive values for size ratio, RIMM, and RIMC were 86% ± 4%, 90% ± 4%, and 93% ± 4%, respectively. In testing, size ratio and RIMM had positive predictive values of 85%, while RIMC had 92%. CONCLUSIONS Size ratio was the best individual factor for identifying the ruptured aneurysm; however, RIMC, followed by RIMM, outperformed existing parameters.
Collapse
Affiliation(s)
- H Rajabzadeh-Oghaz
- From the Canon Stroke and Vascular Research Center (H.R.-O., N.V., A.H.S., J.M.D., H.M.).,Departments of Mechanical and Aerospace Engineering (H.R.-O., N.V., H.M.)
| | - J Wang
- Biostatistics (J.W.), University at Buffalo, Buffalo, New York
| | - N Varble
- From the Canon Stroke and Vascular Research Center (H.R.-O., N.V., A.H.S., J.M.D., H.M.).,Departments of Mechanical and Aerospace Engineering (H.R.-O., N.V., H.M.)
| | - S-I Sugiyama
- Department of Neuroanesthesia (S.-I.S.), Kohnan Hospital, Sendai, Japan.,Department of Neurosurgery (S.-I.S., A.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Shimizu
- Department of Neurosurgery (S.-I.S., A.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - L Jing
- Department of Interventional Neuroradiology (L.J., J.L., X.Y., H.M.), Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - J Liu
- Department of Interventional Neuroradiology (L.J., J.L., X.Y., H.M.), Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - X Yang
- Department of Interventional Neuroradiology (L.J., J.L., X.Y., H.M.), Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - A H Siddiqui
- From the Canon Stroke and Vascular Research Center (H.R.-O., N.V., A.H.S., J.M.D., H.M.).,Departments of Neurosurgery (A.H.S., J.M.D.).,Radiology (A.H.S.), Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York.,Jacobs Institute (A.H.S., J.M.D), Buffalo, New York
| | - J M Davies
- From the Canon Stroke and Vascular Research Center (H.R.-O., N.V., A.H.S., J.M.D., H.M.).,Departments of Neurosurgery (A.H.S., J.M.D.).,Bioinformatics (J.M.D.).,Jacobs Institute (A.H.S., J.M.D), Buffalo, New York
| | - H Meng
- From the Canon Stroke and Vascular Research Center (H.R.-O., N.V., A.H.S., J.M.D., H.M.) .,Departments of Mechanical and Aerospace Engineering (H.R.-O., N.V., H.M.).,Department of Interventional Neuroradiology (L.J., J.L., X.Y., H.M.), Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
34
|
Tinklenberg J, Slick R, Vanden Avond M, Beatka M, Prom M, Siebers E, Meng H, Grzybowski M, Heisner J, Ross J, Ochala J, Nowak K, Zhang L, Geurts A, Stowe D, Montanaro F, Lawlor M. CONGENITAL MYOPATHIES: NEMALINE MYOPATHIES. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.209] [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: 11/28/2022]
|
35
|
Elmadih W, Chronopoulos D, Syam WP, Maskery I, Meng H, Leach RK. Three-dimensional resonating metamaterials for low-frequency vibration attenuation. Sci Rep 2019; 9:11503. [PMID: 31395897 PMCID: PMC6687887 DOI: 10.1038/s41598-019-47644-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [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: 04/07/2019] [Accepted: 07/15/2019] [Indexed: 11/10/2022] Open
Abstract
Recent advances in additive manufacturing have enabled fabrication of phononic crystals and metamaterials which exhibit spectral gaps, or stopbands, in which the propagation of elastic waves is prohibited by Bragg scattering or local resonance effects. Due to the high level of design freedom available to additive manufacturing, the propagation properties of the elastic waves in metamaterials are tunable through design of the periodic cell. In this paper, we outline a new design approach for metamaterials incorporating internal resonators, and provide numerical and experimental evidence that the stopband exists over the irreducible Brillouin zone of the unit cell of the metamaterial (i.e. is a three-dimensional stopband). The targeted stopband covers a much lower frequency range than what can be realised through Bragg scattering alone. Metamaterials have the ability to provide (a) lower frequency stopbands than Bragg-type phononic crystals within the same design volume, and/or (b) comparable stopband frequencies with reduced unit cell dimensions. We also demonstrate that the stopband frequency range of the metamaterial can be tuned through modification of the metamaterial design. Applications for such metamaterials include aerospace and transport components, as well as precision engineering components such as vibration-suppressing platforms, supports for rotary components, machine tool mounts and metrology frames.
Collapse
Affiliation(s)
- W Elmadih
- Manufacturing Metrology Team, Faculty of Engineering, University of Nottingham, Nottingham, NG8 1BB, UK.
| | - D Chronopoulos
- Institute for Aerospace Technology & Composites Group, Faculty of Engineering, University of Nottingham, Nottingham, NG8 1BB, UK
| | - W P Syam
- Manufacturing Metrology Team, Faculty of Engineering, University of Nottingham, Nottingham, NG8 1BB, UK
| | - I Maskery
- Centre for Additive Manufacturing, Faculty of Engineering, University of Nottingham, Nottingham, NG8 1BB, UK
| | - H Meng
- Institute for Aerospace Technology & Composites Group, Faculty of Engineering, University of Nottingham, Nottingham, NG8 1BB, UK
| | - R K Leach
- Manufacturing Metrology Team, Faculty of Engineering, University of Nottingham, Nottingham, NG8 1BB, UK
| |
Collapse
|
36
|
Affiliation(s)
- Dean T. Eurich
- School of Public Health, University of Alberta, Edmonton, Canada
- ACHORD, University of Alberta, Edmonton, Canada
| | - John G. Hanlon
- St Michael's Hospital Department of Anesthesia, University of Toronto, Toronto, Canada
- Department of Anesthesia, University of Toronto, Toronto, Canada
| | - Jamie J. Boisvenue
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Howard Meng
- Department of Anesthesia, University of Toronto, Toronto, Canada
| | - Jason R.B. Dyck
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| |
Collapse
|
37
|
Xiao L, He C, Luo L, Yang K, Yang L, Xu K, Zheng Y, Gu C, Huang Q, Meng H. Genome-wide association study identified genes in the response to Salmonella pullorum infection in chickens. Anim Genet 2019; 50:403-406. [PMID: 31017703 DOI: 10.1111/age.12787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2019] [Indexed: 11/27/2022]
Abstract
Pullorum is a bacterial disease that threatens the modern poultry industry. Over the years, research on this topic has focused mainly on its epidemiology, whereas the hosts' genetic basis of infection is still vague. In order to identify chickens' genes associated with pullorum, we sequenced 300 New Pudong chicken by double digest genotyping-by-sequencing. We obtained 1 527 953 SNPs for a genome-wide association analysis, which identified 43 genome-wide significant markers. Most of the significant SNPs were in the interval of 57.7-59.0 Mb on chromosome 5. The gene set enrichment analysis suggests a potential manner for bacterial infection and remaining inside the host. This work provides basic data for the purification, prevention and treatment of pullorum disease.
Collapse
Affiliation(s)
- L Xiao
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China
| | - C He
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China
| | - L Luo
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China
| | - K Yang
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, 201106, Shanghai, China
| | - L Yang
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China
| | - K Xu
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China
| | - Y Zheng
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China
| | - C Gu
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, 201106, Shanghai, China
| | - Q Huang
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, 201106, Shanghai, China
| | - H Meng
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China
| |
Collapse
|
38
|
Wang J, Liu J, Meng H, Guan Y, Yin Y, Zhao Z, Sun G, Wu A, Chen L, Yu X. Neural stem cells promote glioblastoma formation in nude mice. Clin Transl Oncol 2019; 21:1551-1560. [PMID: 30945128 DOI: 10.1007/s12094-019-02087-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 03/11/2019] [Indexed: 12/15/2022]
Abstract
PURPOSE Neural stem cells (NSCs) have been characterized with the ability of self-renewal and neurogenesis, which has inspired lots of studies to clarify the functions of NSCs in neural injury, ischemic stroke, brain inflammation and neurodegenerative diseases. We focused on the relationship of NSCs with glioblastoma, since we have discovered that recurrent glioblastomas were inclined to be derived from subventricular zone (SVZ), where NSCs reside. We want to clarify whether NSCs are involved in glioblastoma relapse. METHODS Immunocytochemistry was used to confirm the stemness of NSCs. The Cell Counting Kit-8 was used to measure the proliferation of cells. Migration abilities were examined by wound healing and transwell assays, and tumor formation abilities were confirmed in nude mice. RESULTS We found in experiments that NSCs promoted proliferation of a glioblastoma cell line-Ln229, the migration ability of Ln229 cells was motivated by co-cultured with NSCs. Tumor formation of Ln229 cells was also accelerated in nude mice when co-transplanted with NSCs. In immunohistochemistry, we found that the Sox2- and Ki67-positive cells were much higher in co-transplanted groups than that of control groups. CONCLUSIONS These results imply the potential role that NSCs play in speeding up tumor formation in the process of glioblastoma relapse, providing the basis for dealing with newly diagnosed glioblastoma patients, which may help postpone the recurrence of glioblastoma as far as possible through preprocessing the tumor-adjacent SVZ tissue.
Collapse
Affiliation(s)
- J Wang
- Department of Neurosurgery, Chinese People'S Liberation Army (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, 28 Fuxing Road, Haidian District, Beijing, 100853, People's Republic of China.,Department of Neurosurgery, Hospital of Eighty-First Army Group of Chinese PLA, Zhang jiakou, 075000, People's Republic of China
| | - J Liu
- Department of Neurosurgery, Chinese People'S Liberation Army (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, 28 Fuxing Road, Haidian District, Beijing, 100853, People's Republic of China
| | - H Meng
- Department of Neurosurgery, Chinese People'S Liberation Army (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, 28 Fuxing Road, Haidian District, Beijing, 100853, People's Republic of China
| | - Y Guan
- Department of Cell Biology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, People's Republic of China
| | - Y Yin
- Department of Neurosurgery, Chinese People'S Liberation Army (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, 28 Fuxing Road, Haidian District, Beijing, 100853, People's Republic of China
| | - Z Zhao
- Department of Neurosurgery, Chinese People'S Liberation Army (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, 28 Fuxing Road, Haidian District, Beijing, 100853, People's Republic of China
| | - G Sun
- Department of Neurosurgery, Chinese People'S Liberation Army (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, 28 Fuxing Road, Haidian District, Beijing, 100853, People's Republic of China
| | - A Wu
- Department of Neruosurgery, The First Hospital of China Medical University, Shenyang, 110122, People's Republic of China
| | - L Chen
- Department of Neurosurgery, Chinese People'S Liberation Army (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, 28 Fuxing Road, Haidian District, Beijing, 100853, People's Republic of China.
| | - X Yu
- Department of Neurosurgery, Chinese People'S Liberation Army (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, 28 Fuxing Road, Haidian District, Beijing, 100853, People's Republic of China.
| |
Collapse
|
39
|
Deng S, Meng H, Wang X, Fan X, Wang Q, Zhou M, Guo X, Wei Z, Wang F, Tan C, Huang X. Graphene oxide-film-coated splitting ratio-adjustable Mach-Zehnder interferometer for relative humidity sensing. Opt Express 2019; 27:9232-9240. [PMID: 31052730 DOI: 10.1364/oe.27.009232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
In this paper, a splitting ratio-adjustable Mach-Zehnder interferometer (MZI) for the measurement of relative humidity (RH) is proposed and experimentally demonstrated. The sensing head contains three sections of single mode fiber (SMF) and two sections of multimode fiber (MMF), in which the two MMFs are spliced among the three SMFs. The MMFs are corroded with hydrofluoric acid and act as mode couplers to split and recombine light owing to the core diameter mismatch with the SMF. A layer of graphene oxide (GO) is coated on the MMFs by dip-coating and natural evaporation. The effective refractive index of the GO will vary when it absorbs the water molecules. As a result, the intensity of the transmission light in the core and cladding of the single mode fiber can be adjusted. Thus, the intensity of the resonant dip will vary when the relative humidity changes. The experimental results show that a humidity sensitivity of 0.263 dB/RH% with a linear correlation coefficient of 99% can be achieved in a relative humidity range of 35% to 85%.
Collapse
|
40
|
Chen L, Liu T, Liu H, Liu J, Meng H, Shen S, Yang L, Yu X. Phase I trial of combination dendritic vaccine and immune checkpoint blockade for prevention of postoperative glioblastoma recurrence. Eur J Cancer 2019. [DOI: 10.1016/j.ejca.2019.01.071] [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: 11/28/2022]
|
41
|
Paliwal N, Tutino VM, Shallwani H, Beecher JS, Damiano RJ, Shakir HJ, Atwal GS, Fennell VS, Natarajan SK, Levy EI, Siddiqui AH, Davies JM, Meng H. Ostium Ratio and Neck Ratio Could Predict the Outcome of Sidewall Intracranial Aneurysms Treated with Flow Diverters. AJNR Am J Neuroradiol 2019; 40:288-294. [PMID: 30679216 DOI: 10.3174/ajnr.a5953] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 11/07/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Incompletely occluded flow diverter treated aneurysms remain at risk of rupture and thromboembolic complications. Our aim was to identify the potential for incomplete occlusion of intracranial aneurysms treated by flow diverters. We investigated whether aneurysm ostium size in relation to parent artery size affects angiographic outcomes of flow diverter-treated sidewall aneurysms. MATERIALS AND METHODS Flow diverter-treated sidewall aneurysms were divided into "occluded" and "residual" (incomplete occlusion) groups based on 6-month angiographic follow-up. We calculated the ostium ratio, a new parameter defined as the aneurysm ostium surface area versus the circumferential surface area of the parent artery. We also calculated the neck ratio, defined as clinical aneurysm neck diameter versus parent artery diameter from pretreatment 2D DSA, as a 2D surrogate. We compared the performance of these ratios with existing aneurysm morphometrics (size, neck diameter, volume, aspect ratio, size ratio, undulation index, nonsphericity index, ellipticity index, bottleneck factor, aneurysm angle, and parent vessel angle) and flow diverter-related parameters (metal coverage rate and pore density). Statistical tests and receiver operating characteristic analyses were performed to identify significantly different parameters between the 2 groups and test their predictive performances. RESULTS We included 63 flow diverter-treated aneurysms, 46 occluded and 17 residual. The ostium ratio and neck ratio were significantly higher in the residual group than in the occluded group (P < .001 and P = .02, respectively), whereas all other parameters showed no statistical difference. As discriminating parameters for occlusion, ostium ratio and neck ratio achieved areas under the curve of 0.912 (95% CI, 0.838-0.985) and 0.707 (95% CI, 0.558-0.856), respectively. CONCLUSIONS High ostium ratios and neck ratios could predict incomplete occlusion of flow diverter-treated sidewall aneurysms. Neck ratio can be easily calculated by interventionists to predict flow-diverter treatment outcomes.
Collapse
Affiliation(s)
- N Paliwal
- From the Department of Mechanical and Aerospace Engineering (N.P., R.J.D., H.M.).,Canon Stroke and Vascular Research Center (N.P., V.M.T., R.J.D., E.I.L., A.H.S., J.M.D., H.M.)
| | - V M Tutino
- Canon Stroke and Vascular Research Center (N.P., V.M.T., R.J.D., E.I.L., A.H.S., J.M.D., H.M.).,Department of Biomedical Engineering (V.M.T., H.M.), University at Buffalo, Buffalo, New York.,Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.)
| | - H Shallwani
- Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Department of Neurosurgery (H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., A.H.S., J.M.D.), Gates Vascular Institute at Kaleida Health, Buffalo, New York
| | - J S Beecher
- Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Department of Neurosurgery (H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., A.H.S., J.M.D.), Gates Vascular Institute at Kaleida Health, Buffalo, New York
| | - R J Damiano
- From the Department of Mechanical and Aerospace Engineering (N.P., R.J.D., H.M.).,Canon Stroke and Vascular Research Center (N.P., V.M.T., R.J.D., E.I.L., A.H.S., J.M.D., H.M.)
| | - H J Shakir
- Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Department of Neurosurgery (H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., A.H.S., J.M.D.), Gates Vascular Institute at Kaleida Health, Buffalo, New York
| | - G S Atwal
- Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Department of Neurosurgery (H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., A.H.S., J.M.D.), Gates Vascular Institute at Kaleida Health, Buffalo, New York
| | - V S Fennell
- Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Department of Neurosurgery (H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., A.H.S., J.M.D.), Gates Vascular Institute at Kaleida Health, Buffalo, New York
| | - S K Natarajan
- Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Department of Neurosurgery (H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., A.H.S., J.M.D.), Gates Vascular Institute at Kaleida Health, Buffalo, New York
| | - E I Levy
- Canon Stroke and Vascular Research Center (N.P., V.M.T., R.J.D., E.I.L., A.H.S., J.M.D., H.M.).,Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Radiology (E.I.L., A.H.S.)
| | - A H Siddiqui
- Canon Stroke and Vascular Research Center (N.P., V.M.T., R.J.D., E.I.L., A.H.S., J.M.D., H.M.).,Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Radiology (E.I.L., A.H.S.).,Department of Neurosurgery (H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., A.H.S., J.M.D.), Gates Vascular Institute at Kaleida Health, Buffalo, New York.,Jacobs Institute (A.H.S., J.M.D.), Buffalo, New York
| | - J M Davies
- Canon Stroke and Vascular Research Center (N.P., V.M.T., R.J.D., E.I.L., A.H.S., J.M.D., H.M.).,Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.).,Biomedical Informatics (J.M.D.), Jacobs School of Medicine, University at Buffalo, Buffalo, New York.,Department of Neurosurgery (H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., A.H.S., J.M.D.), Gates Vascular Institute at Kaleida Health, Buffalo, New York.,Jacobs Institute (A.H.S., J.M.D.), Buffalo, New York
| | - H Meng
- From the Department of Mechanical and Aerospace Engineering (N.P., R.J.D., H.M.) .,Canon Stroke and Vascular Research Center (N.P., V.M.T., R.J.D., E.I.L., A.H.S., J.M.D., H.M.).,Department of Biomedical Engineering (V.M.T., H.M.), University at Buffalo, Buffalo, New York.,Departments of Neurosurgery (V.M.T., H.S., J.S.B., H.J.S., G.S.A., V.S.F., S.K.N., E.I.L., A.H.S., J.M.D., H.M.)
| |
Collapse
|
42
|
|
43
|
Shen L, Gong J, Xu Y, Zhang X, Peng Z, Qi C, Li G, Meng H, Liu Z, Wang H, Chen C, Li J, Zheng Y, Lee J, Zhang Y, Zhang Q. A novel recombinant human anti-PD-1 monoclonal antibody GLS-010 in patients with advanced cancer: Result of a phase Ia clinical trial. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy486.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
44
|
Abstract
Objectives The incidence of acute Achilles tendon rupture appears to be increasing. The aim of this study was to summarize various therapies for acute Achilles tendon rupture and discuss their relative merits. Methods A PubMed search about the management of acute Achilles tendon rupture was performed. The search was open for original manuscripts and review papers limited to publication from January 2006 to July 2017. A total of 489 papers were identified initially and finally 323 articles were suitable for this review. Results The treatments of acute Achilles tendon rupture include operative and nonoperative treatments. Operative treatments mainly consist of open repair, percutaneous repair, mini-open repair, and augmentative repair. Traditional open repair has lower re-rupture rates with higher risks of complications. Percutaneous repair and mini-open repair show similar re-rupture rates but lower overall complication rates when compared with open repair. Percutaneous repair requires vigilance against nerve damage. Functional rehabilitation combining protected weight-bearing and early controlled motion can effectively reduce re-rupture rates with satisfactory outcomes. Biological adjuncts help accelerating tendon healing by adhering rupture ends or releasing highly complex pools of signalling factors. Conclusion The optimum treatment for complete rupture remains controversial. Both mini-open repair and functional protocols are attractive alternatives, while biotherapy is a potential future development. Cite this article: X. Yang, H. Meng, Q. Quan, J. Peng, S. Lu, A. Wang. Management of acute Achilles tendon ruptures: A review. Bone Joint Res 2018;7:561–569. DOI: 10.1302/2046-3758.710.BJR-2018-0004.R2.
Collapse
Affiliation(s)
- X Yang
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - H Meng
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Q Quan
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - J Peng
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - S Lu
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - A Wang
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
45
|
Peterson LJ, Hyer K, Meng H, Dobbs D, Gamaldo A, O’Neil K. FACTORS ASSOCIATED WITH WHETHER OLDER ADULTS DISCUSS THEIR EOL CARE PREFERENCES WITH FAMILY MEMBERS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.3141] [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: 11/14/2022] Open
Affiliation(s)
- L J Peterson
- University of South Florida, Bradenton, Florida, United States
| | - K Hyer
- Florida Policy Exchange Center on Aging, School of Aging Studies, University of South Florida, Tampa, FL
| | - H Meng
- Florida Policy Exchange Center on Aging, School of Aging Studies, University of South Florida, Tampa, FL
| | - D Dobbs
- Florida Policy Exchange Center on Aging, School of Aging Studies, University of South Florida, Tampa, FL
| | - A Gamaldo
- Department of Human Development and Family Studies, Pennsylvania State University, University Park, PA
| | - K O’Neil
- Ascension Senior Living, St. Louis, MO
| |
Collapse
|
46
|
Dobbs DJ, Hyer K, Meng H, Haley W, Fanfan D. A PALLIATIVE CARE EDUCATION IN ASSISTED LIVING PROGRAM TO IMPROVE ADVANCE CARE PLANNING DISCUSSIONS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1631] [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: 11/13/2022] Open
Affiliation(s)
- D J Dobbs
- University of South Florida, Tampa, Florida, United States
| | - K Hyer
- School of Aging Studies, Florida Policy Exchange Center on Aging, University of South Florida, Tampa, FL, USA
| | - H Meng
- School of Aging Studies, Florida Policy Exchange Center on Aging, University of South Florida, Tampa, FL, USA
| | - W Haley
- School of Aging Studies, Florida Policy Exchange Center on Aging, University of South Florida, Tampa, FL, USA
| | - D Fanfan
- College of Nursing, School of Aging Studies, University of South Florida, Tampa, FL, USA
| |
Collapse
|
47
|
Siebers E, Tinklenberg J, Meng H, Ayres S, Vanden Avond M, Slick R, Nowake K, Granzier H, Hardeman E, Montanaro F, Lawlor M. CONGENITAL MYOPATHIES: NEMALINE AND TITINOPATHIES. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.282] [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: 11/28/2022]
|
48
|
Fu H, Dai WW, Jia PL, Huang K, Meng H, Yang QK, Qu YQ, Lei PP. [Analysis of 124 Suicide Cases in Wuhua District in Kunming]. Fa Yi Xue Za Zhi 2018; 34:253-256. [PMID: 30051662 DOI: 10.12116/j.issn.1004-5619.2018.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To analyze the relationship between the suicide method and the sex, age, education background and cause of suicide to provide reference for the forensic identification of suicide. METHODS After scene investigation, external body examination, autopsy and case investigation, 124 identified suicide cases which happened in recent three years in Wuhua district in Kunming were collected. Analytical methods as chi-square test and descriptive statistics were performed by SPSS 22.0. RESULTS In all the suicide cases, male to female ratio was 1.53∶1. The suicide methods were mainly fatal fall, hanging and drowning. The ratio of local to non-native residents was 1∶1. The suicide rate in the people with primary school or junior middle school education level was highest. The group of >10-50 years tended to choose fatal fall suicide and people over 60 years were more likely to choose hanging. People with different academic background tended to choose fatal fall suicide. The suicide methods as fatal fall and hanging were chosen because of mental and physical diseases and economic problems, while the suicides with emotional problems were more likely to choose fatal fall and poisoning. CONCLUSIONS Suicide belongs to a kind of complex cases. For the cases of suspected suicide, complete exploration and overall consideration should be done to determine the nature of cases based on comprehensive analysis of all the influence factors.
Collapse
Affiliation(s)
- H Fu
- Kunming Medical University, Kunming 650500, China.,Xingtai Medical College, Xingtai 054000, China
| | - W W Dai
- Kunming Medical University, Kunming 650500, China
| | - P L Jia
- Kunming Medical University, Kunming 650500, China
| | - K Huang
- Criminal Reconnaissance Technique Group, Wuhua Branch of Kunming Public Security Bureau, Kunming 650032, China
| | - H Meng
- Xingtai Medical College, Xingtai 054000, China
| | - Q K Yang
- Kunming Medical University, Kunming 650500, China
| | - Y Q Qu
- Kunming Medical University, Kunming 650500, China
| | - P P Lei
- Kunming Medical University, Kunming 650500, China
| |
Collapse
|
49
|
Meng H, Liang Y, Hao J, Lu J. Comparison of Rejection-Specific Genes in Peripheral Blood and Allograft Biopsy From Kidney Transplant. Transplant Proc 2018; 50:115-123. [PMID: 29407293 DOI: 10.1016/j.transproceed.2017.11.022] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 11/03/2017] [Indexed: 01/09/2023]
Abstract
BACKGROUND Although improved understanding and assessment of organ rejection significantly contribute to long-term allograft survival after kidney transplantation, reliable and predictive biomarkers that enable diagnoses of rejection state are lacking. Patient rejection of a kidney graft displays a specific blood and biopsy transcriptional pattern, raising the question of whether transcript biomarkers in blood could reflect events within the allograft. METHODS Differential expression genes were screened on large-scale transcriptomic data from blood and allograft biopsies, which included recipients undergoing rejection and recipients with stable renal function. RESULTS We found that the number of rejection-related genes in biopsy samples was much greater than in blood. We observed only one overlapping gene, HIST1H4A, consistently expressed in biopsy samples and blood. Functional association of the identified genes in biopsies implicated a strong involvement of inflammatory-immune pathways. Rejection-related genes in the mammalian target of rapamycin-signaling pathway were down-regulated, and genes related to allograft rejection and graft-versus-host disease were up-regulated in allograft biopsy samples. We also recognized the core signaling elements (PIK3R2 and EGFR) in inflammatory-immune pathways based on biopsy samples. CONCLUSIONS We have expanded our understanding of rejection-specific gene expression pattern in allograft biopsy and peripheral blood, and provided a candidate set of overlapping genes for screening of rejection in kidney transplant recipients.
Collapse
Affiliation(s)
- H Meng
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Y Liang
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - J Hao
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - J Lu
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China.
| |
Collapse
|
50
|
Su L, Zhang J, Meng H, Ouyang T, Li J, Wang T, Fan Z, Fan T, Lin B, Xie Y. Prevalence of BRCA1/2 large genomic rearrangements in Chinese women with sporadic triple-negative or familial breast cancer. Clin Genet 2018; 94:165-169. [PMID: 29582426 DOI: 10.1111/cge.13256] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/09/2018] [Accepted: 03/23/2018] [Indexed: 11/29/2022]
Abstract
The prevalence of BRCA1/2 large genomic rearrangements (LGRs) and their underlying mechanisms have not been fully evaluated in Chinese women with breast cancer. In this study, we determined the prevalence of BRCA1/2 LGRs in 834 patients with familial breast cancer (FBC) and 660 patients with sporadic triple-negative breast cancer (TNBC) who were negative for BRCA1/2 small-range mutations using the multiplex ligation-dependent probe amplification method. We found that 20 index patients (2.4%) in the FBC group carried a BRCA1 or BRCA2 LGR, and the frequencies of BRCA1 and BRCA2 LGRs were 1.6% and 0.8%, respectively. Seven index patients (1.1%) carried a BRCA1 LGR in 660 sporadic TNBC patients, whereas no BRCA2 LGRs were found in these patients. Among the BRCA1/2 LGRs, 48.1% (13/27) were novel, and the breakpoints of the majority of the LGRs were identified. ΨBRCA1-mediated homologous recombination (HR) and Alu-mediated HR/non-homologous end-joining (NHEJ) accounted for 40% and 30% of the BRCA1 LGRs, respectively. Alu-mediated HR accounted for 71.4% of the BRCA2 LGRs, and the remaining one-third was generated through Long interspersed nuclear elements (LINE)-mediated NHEJ. Our findings suggest that both FBC patients and sporadic TNBC patients should be tested for BRCA1/2 LGRs.
Collapse
Affiliation(s)
- L Su
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - J Zhang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - H Meng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - T Ouyang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - J Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - T Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - Z Fan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - T Fan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - B Lin
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - Y Xie
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| |
Collapse
|