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Tang Y, Zhao R, Yi M, Ge Z, Wang D, Wang G, Deng X. Multifunctional Hydrogel Enhances Inflammatory Control, Antimicrobial Activity, and Oxygenation to Promote Healing in Infectious Wounds. Biomacromolecules 2024; 25:2423-2437. [PMID: 38457661 DOI: 10.1021/acs.biomac.3c01386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Chronic infected wounds often fail to heal through normal repair mechanisms, and the persistent response of reactive oxygen species (ROS) and inflammation is a major contributing factor to the difficulty in their healing. In this context, we developed an ROS-responsive injectable hydrogel. This hydrogel is composed of ε-polylysine grafted (EPL) with caffeic acid (CA) and hyaluronic acid (HA) grafted with phenylboronic acid (PBA). Before the gelation process, a mixture CaO2@Cur-PDA (CCP) consisting of calcium peroxide (CaO2) coated with polydopamine (PDA) and curcumin (Cur) is embedded into the hydrogel. Under the conditions of chronic refractory wound environments, the hydrogel gradually dissociates. HA mimics the function of the extracellular matrix, while the released caffeic acid-grafted ε-polylysine (CE) effectively eliminates bacteria in the wound vicinity. Additionally, released CA also clears ROS and influences macrophage polarization. Subsequently, CCP further decomposes, releasing Cur, which promotes angiogenesis. This multifunctional hydrogel accelerates the repair of diabetic skin wounds infected with Staphylococcus aureus in vivo and holds promise as a candidate dressing for the healing of chronic refractory wounds.
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Affiliation(s)
- Yunfeng Tang
- Head & Neck Oncology Ward, Cancer Center, West China Hospital, Cancer Center, Sichuan University, Chengdu 610041, China
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Renliang Zhao
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Min Yi
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zilu Ge
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dong Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Guanglin Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiangtian Deng
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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Deng X, Wu Y, Tang Y, Ge Z, Wang D, Zheng C, Zhao R, Lin W, Wang G. Microenvironment-responsive smart hydrogels with antibacterial activity and immune regulation for accelerating chronic wound healing. J Control Release 2024; 368:518-532. [PMID: 38462042 DOI: 10.1016/j.jconrel.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/24/2024] [Accepted: 03/04/2024] [Indexed: 03/12/2024]
Abstract
Current therapeutic strategies for chronic refractory wounds remain challenge owing to their unfavorable wound microenvironment and poor skin regeneration ability. Thus far, a regimen for effective chronic refractory wounds management involves bacterial elimination, alleviation of oxidative stress, inhibition of inflammatory response, and promotion of angiogenesis. In this work, an injectable glycopeptide hydrogel based on phenylboronic acid-grafted ϵ-polylysine (EPBA) and poly (vinyl alcohol) (PVA) with pH/reactive oxygen species (ROS) dual-responsive properties was prepared, which exerted intrinsic antibacterial and antioxidant properties. ROS-responsive micelles (MIC) loaded with herb-derived Astragaloside IV (AST) are introduced into the hydrogel before gelation. Attributed to the acidic condition and oxidative stress microenvironment of wound bed, the hydrogel gradually disintegrates, and the released EPBA could help to eliminate bacterial. Meanwhile, the subsequential release of AST could help to achieve anti-oxidation, anti-inflammatory, proangiogenic effects, and regulation of macrophage polarization to accelerate chronic wound healing. In addition, the wound repair mechanism of composite hydrogel accelerating skin regeneration was assessed by RNA-sequencing, exploring a range of potential targets and pathway for further study. Collectively, this multifunctional hydrogel dressing, matching different healing stages of tissue remodeling, holds a great potential for the treatment of chronic refractory wounds.
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Affiliation(s)
- Xiangtian Deng
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, China; Trauma medical center, Department of Orthopedics surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ye Wu
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, China
| | - YunFeng Tang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, China; Trauma medical center, Department of Orthopedics surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zilu Ge
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, China; Trauma medical center, Department of Orthopedics surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dong Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, China; Trauma medical center, Department of Orthopedics surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Cheng Zheng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610041, China
| | - Renliang Zhao
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, China; Trauma medical center, Department of Orthopedics surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Wei Lin
- Department of Gynecology, West China Second Hospital, Sichuan University, Chengdu, China
| | - Guanglin Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, China; Trauma medical center, Department of Orthopedics surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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Zheng C, Ji C, Wang B, Zhang J, He Q, Ma J, Yang Z, Pan Q, Sun L, Sun N, Ling C, Lin G, Deng X, Yin L. Construction of prediction model for fetal growth restriction during first trimester in an Asian population. Ultrasound Obstet Gynecol 2024; 63:321-330. [PMID: 37902789 DOI: 10.1002/uog.27522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/15/2023] [Accepted: 10/19/2023] [Indexed: 10/31/2023]
Abstract
OBJECTIVE To construct a prediction model for fetal growth restriction (FGR) during the first trimester of pregnancy and evaluate its screening performance. METHODS This was a prospective cohort study of singleton pregnancies that underwent routine ultrasound screening at 11 to 13 + 6 weeks at the Affiliated Suzhou Hospital of Nanjing Medical University between January 2019 and April 2022. Basic clinical information, ultrasound indicators and serum biomarkers of pregnant women were collected. Fetal weight assessment was based on the fetal growth curve for the Southern Chinese population. FGR was diagnosed according to Delphi consensus criteria. Least absolute shrinkage and selection operator (lasso) regression was used to select variables for inclusion in the model. Discrimination, calibration and clinical effectiveness of the model were evaluated in training and validation cohorts. RESULTS A total of 1188 pregnant women were included, of whom 108 had FGR. Lasso regression identified seven predictive features, including history of maternal hypertension, maternal smoking or passive smoking, gravidity, uterine artery pulsatility index, ductus venosus pulsatility index and multiples of the median values of placental growth factor and soluble fms-like tyrosine kinase-1. The nomogram prediction model constructed from these seven variables accurately predicted FGR, and the area under the receiver-operating-characteristics curve in the validation cohort was 0.82 (95% CI, 0.74-0.90). The calibration curve and Hosmer-Lemeshow test demonstrated good calibration, and the clinical decision curve and clinical impact curve supported its practical value in a clinical setting. CONCLUSION The multi-index prediction model for FGR has good predictive value during the first trimester. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- C Zheng
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
- Department of Ultrasound, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - C Ji
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - B Wang
- Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - J Zhang
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Q He
- Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - J Ma
- Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Z Yang
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Q Pan
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - L Sun
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - N Sun
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - C Ling
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - G Lin
- Department of Obstetrics, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - X Deng
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - L Yin
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
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Deng X, Liao Z. A machine-learning model based on dynamic contrast-enhanced MRI for preoperative differentiation between hepatocellular carcinoma and combined hepatocellular-cholangiocarcinoma. Clin Radiol 2024:S0009-9260(24)00093-X. [PMID: 38413354 DOI: 10.1016/j.crad.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/31/2024] [Accepted: 02/04/2024] [Indexed: 02/29/2024]
Abstract
AIM To establish a machine-learning model based on dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) to differentiate combined hepatocellular-cholangiocarcinoma (cHCC-CC) from hepatocellular carcinoma (HCC) before surgery. MATERIALS AND METHODS Clinical and MRI data of 194 patients with histopathologically diagnosed cHCC-CC (n=52) or HCC (n=142) were analysed retrospectively. ITK-SNAP software was used to delineate three-dimensional (3D) lesions and extract high-throughput features. Feature selection was carried out based on Pearson's correlation coefficient and least absolute shrinkage and selection operator (LASSO) regression analysis. A radiomics model (radiomics features), a clinical model (i.e., clinical-image features), and a fusion model (i.e., radiomics features + clinical-image features) were established using six machine-learning classifiers. The performance of each model in distinguishing between cHCC-CC and HCC was evaluated with the receiver operating characteristic (ROC) curve, the area under the ROC curve (AUC), sensitivity, and specificity. RESULTS Significant differences in liver cirrhosis, tumour number, shape, edge, peritumoural enhancement in the arterial phase, and lipid were identified between cHCC-CC and HCC patients (p<0.05). The AUC of the fusion model based on logistic regression was 0.878 (95% CI: 0.766-0.949) in the arterial phase in the test set, and the sensitivity/specificity was 0.844/0.714; however, the AUC of the clinical and radiomics models was 0.759 (95% CI: 0.663-0.861) and 0.838 (95% CI: 0.719-0.921) in the test set, respectively. CONCLUSION The fusion model based on DCE-MRI in the arterial phase can significantly improve the diagnostic rate of cHCC-CC and HCC as compared with conventional approaches.
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Affiliation(s)
- X Deng
- Medical Imaging Center, Ganzhou People's Hospital, 16th Meiguan Avenue, Ganzhou 341000, China; Ganzhou Institute of Medical Imaging, Ganzhou 341000, China; Ganzhou Key Laboratory of Medical Imaging and Artificial Intelligence, Ganzhou 341000, China
| | - Z Liao
- Medical Imaging Center, Ganzhou People's Hospital, 16th Meiguan Avenue, Ganzhou 341000, China; Ganzhou Institute of Medical Imaging, Ganzhou 341000, China; Ganzhou Key Laboratory of Medical Imaging and Artificial Intelligence, Ganzhou 341000, China.
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Duan LL, Zhao YB, Er YL, Ye PP, Wang W, Gao X, Deng X, Jin Y, Wang Y, Ji CR, Ma XY, Gao C, Zhao YH, Zhu SQ, Su SZ, Guo XE, Peng JJ, Yu Y, Yang C, Su YY, Zhao M, Guo LH, Wu YP, Luo YN, Meng RL, Xu HF, Liu HZ, Ruan HH, Xie B, Zhang HM, Liao YH, Chen Y, Wang LH. [The effect of Ba Duan Jin on the balance of community-dwelling older adults: a cluster randomized control trial]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:250-256. [PMID: 38413065 DOI: 10.3760/cma.j.cn112338-20230506-00283] [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: 02/29/2024]
Abstract
Objective: To assess the effectiveness of a 6-month Ba Duan Jin exercise program in improving the balance of community-dwelling older adults. Methods: A two arms, parallel-group, cluster randomized controlled trial was conducted in 1 028 community residents aged 60-80 years in 40 communities in 5 provinces of China. Participants in the intervention group (20 communities, 523 people) received Ba Duan Jin exercise 5 days/week, 1 hour/day for 6 months, and three times of falls prevention health education, and the control group (20 communities, 505 people) received falls prevention health education same as the intervention group. The Berg balance scale (BBS) score was the leading outcome indicator, and the secondary outcome indicators included the length of time of standing on one foot (with eyes open and closed), standing in a tandem stance (with eyes open and closed), the closed circle test, and the timed up to test. Results: A total of 1 028 participants were included in the final analysis, including 731 women (71.11%) and 297 men (28.89%), and the age was (69.87±5.67) years. After the 3-month intervention, compared with the baseline data, the BBS score of the intervention group was significantly higher than the control group by 3.05 (95%CI: 2.23-3.88) points (P<0.001). After the 6-month intervention, compared with the baseline data, the BBS score of the intervention group was significantly higher than the control group by 4.70 (95%CI: 4.03-5.37) points (P<0.001). Ba Duan Jin showed significant improvement (P<0.05) in all secondary outcomes after 6 months of exercise in the intervention group compared with the control group. Conclusions: This study showed that Ba Duan Jin exercise can improve balance in community-dwelling older adults aged 60-80. The longer the exercise time, the better the improvement.
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Affiliation(s)
- L L Duan
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y B Zhao
- Shijiazhuang People's Hospital, Shijiazhuang 050031, China
| | - Y L Er
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - P P Ye
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - W Wang
- National Clinical Research Center for Cardiovascular Diseases/National Center for Cardiovascular Diseases/Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - X Gao
- Office of Chronic Disease and Ageing Health Management, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Deng
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y Jin
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y Wang
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - C R Ji
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - X Y Ma
- Institute for Chronic and Non-communicable Disease Control and Prevention, Shijiazhuang Municipal Center for Disease Control and Prevention, Shijiazhuang 050011, China
| | - C Gao
- Institute for Chronic and Non-communicable Disease Control and Prevention, Shijiazhuang Municipal Center for Disease Control and Prevention, Shijiazhuang 050011, China
| | - Y H Zhao
- Shijiazhuang Chang'an District Center for Disease Control and Prevention, Shijiazhuang 050011, China
| | - S Q Zhu
- Department of Chronic Prevention and Control, Shijiazhuang Chang'an District Center for Disease Control and Prevention, Shijiazhuang 050011, China
| | - S Z Su
- Department of Nursing, Shijiazhuang Hospital of Traditional Chinese Medicine, Shijiazhuang 050051, China
| | - X E Guo
- Department of Nursing, Shijiazhuang Hospital of Traditional Chinese Medicine, Shijiazhuang 050051, China
| | - J J Peng
- Department of Injury Control and Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y Yu
- Department of Injury Control and Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - C Yang
- Department of Cancer and Injury Control and Prevention, Shanghai Pudong New Area Center for Disease Control and Prevention, Shanghai 200136, China
| | - Y Y Su
- Department of Cancer and Injury Control and Prevention, Shanghai Pudong New Area Center for Disease Control and Prevention, Shanghai 200136, China
| | - M Zhao
- Department of Chronic and Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - L H Guo
- Department of Chronic and Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y P Wu
- General Office, Cixi Municipal Center for Disease Control and Prevention of Zhejiang Province, Ningbo 315302, China
| | - Y N Luo
- General Office, Cixi Municipal Center for Disease Control and Prevention of Zhejiang Province, Ningbo 315302, China
| | - R L Meng
- Department of Chronic and Non-communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511483, China
| | - H F Xu
- Department of Chronic and Non-communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511483, China
| | - H Z Liu
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - H H Ruan
- Department of Chronic and Non-communicable Disease Control and Prevention, Chronic Disease Prevention and Control Station of Guangzhou Panyu District, Guangzhou 511400, China
| | - B Xie
- Department of Psychiatric, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen 518054, China
| | - H M Zhang
- Department of Psychiatric, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen 518054, China
| | - Y H Liao
- Department of Psychiatric, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen 518054, China
| | - Y Chen
- Department of Psychiatric, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen 518054, China
| | - L H Wang
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Zhang Y, Song Q, Zhang Y, Xiao J, Deng X, Xing X, Hu H, Zhang Y. Iron-Based Nanovehicle Delivering Fin56 for Hyperthermia-Boosted Ferroptosis Therapy Against Osteosarcoma. Int J Nanomedicine 2024; 19:91-107. [PMID: 38192634 PMCID: PMC10773462 DOI: 10.2147/ijn.s441112] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/19/2023] [Indexed: 01/10/2024] Open
Abstract
Background Although systemic chemotherapy is a standard approach for osteosarcoma (OS) treatment, its efficacy is limited by the inherent or acquired resistance to apoptosis of tumor cells. Ferroptosis is considered as an effective strategy capable of stimulating alternative pathways of cancer cell demise. The purpose of this study is to develop a novel strategy boosting ferroptotic cascade for synergistic cancer therapy. Methods and Results A novel nanovehicle composed of arginine-glycine-aspartate (RGD) modified mesoporous silica-coated iron oxide loading Fin56 was rationally prepared (FSR-Fin56). With the RGD-mediated targeting affinity, FSR-Fin56 could achieve selective accumulation and accurate delivery of cargos into cancer cells. Upon exposure to NIR light, the nanovehicle could generate localized hyperthermia and disintegrate to liberate the therapeutic payload. The released Fin56 triggered the degradation of GPX4, while Fe3+ depleted the intracellular GSH pool, producing Fe2+ as a Fenton agent. The local rise in temperature, in conjunction with Fe2+-mediated Fenton reaction, led to a rapid and significant accumulation of ROS, culminating in LPOs and ferroptotic death. The outstanding therapeutic efficacy and safety of the nanovehicle were validated both in vitro and in vivo. Conclusion The Fin56-loaded FSR nanovehicle could effectively disturb the redox balance in cancer cells. Coupled with NIR laser irradiation, the cooperative CDT and PTT achieved a boosted ferroptosis-inducing therapy. Taken together, this study offers a compelling strategy for cancer treatment, particularly for ferroptosis-sensitive tumors like osteosarcoma.
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Affiliation(s)
- Yiran Zhang
- School of Medicine, Nankai University, Tianjin, 300071, People’s Republic of China
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050051, People’s Republic of China
- NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
- HeBei Ex&Invivo Biotechnology Co. Ltd, Shijiazhuang, Hebei, 050051, People’s Republic of China
| | - Qingcheng Song
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050051, People’s Republic of China
- NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
| | - Yueyao Zhang
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050051, People’s Republic of China
- NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
| | - Jiheng Xiao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People’s Republic of China
| | - Xiangtian Deng
- Orthopaedics Research Institute, Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, People’s Republic of China
| | - Xin Xing
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050051, People’s Republic of China
- NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
| | - Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People’s Republic of China
| | - Yingze Zhang
- School of Medicine, Nankai University, Tianjin, 300071, People’s Republic of China
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050051, People’s Republic of China
- NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
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Deng X, Zhao R, Tang Y, Yi M, Ge Z, Wang D, Fang Q, Xiong Z, Duan A, Liu W, Zhang Z, Xiang Y, Hu X, Lin W, Wang G. Highly Biocompatible Polyester-Based Piezoelectric Elastomer with Antitumor and Antibacterial Activity for Ultrasound-Enhanced Piezoelectric Therapy. ACS Appl Mater Interfaces 2023; 15:55308-55322. [PMID: 37991726 DOI: 10.1021/acsami.3c11749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Currently, the use of piezoelectric materials to provide sustainable and noninvasive bioelectric stimulation to eradicate tumor cells and accelerate wound healing has raised wide attention. The development of a multifunctional piezoelectric elastomer with the ability to perform in situ tumor therapy as well as wound repair is of paramount importance. However, current piezoelectric materials have a large elastic modulus and limited stretchability, making it difficult to match with the dynamic curvature changes of the wound. Therefore, by copolymerizing lactic acid, butanediol, sebacic acid, and itaconic acid to develop a piezoelectric elastomer (PLBSIE), we construct a new ultrasound-activated PLBSIE-based tumor/wound unified therapeutic platform. Excitedly, it showed outstanding piezoelectric performance and high stretchability, and the separated carrier could react with water to generate highly cytotoxic reactive oxygen species (ROS), contributing to effectively killing tumor cells and eliminating bacteria through piezoelectric therapy. In addition, ultrasound-triggered piezoelectric effects could promote the migration and differentiation of wound-healing-related cells, thus accelerating wound healing. Herein, such a piezoelectric elastomer exerted a critical role in postoperative tumor-induced wound therapy and healing with the merits of possessing multifunctional abilities. Taken together, the developed ultrasound-activated PLBSIE will offer a comprehensive treatment for postoperative osteosarcoma therapy.
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Affiliation(s)
- Xiangtian Deng
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Renliang Zhao
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yunfeng Tang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Min Yi
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zilu Ge
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dong Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qian Fang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhencheng Xiong
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ao Duan
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wenzheng Liu
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yong Xiang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Xiaoran Hu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Wei Lin
- Department of Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China
| | - Guanglin Wang
- Department of Orthopedics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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Zheng Q, Li W, Zhang Y, Liu X, Fu Y, Luo S, Deng X, Zeng C. Circulating Metabolites and Dental Traits: A Mendelian Randomization Study. J Dent Res 2023; 102:1460-1467. [PMID: 37864545 DOI: 10.1177/00220345231196536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2023] Open
Abstract
It is of great importance to uncover causal biomarkers to gain insight into the pathogenesis of oral diseases and identify novel treatment targets for prevention and treatment thereof. This study aimed to systematically evaluate the causal effects of hundreds of metabolites on 10 dental traits using a 2-sample Mendelian randomization (MR) approach. Genetic variants from genome-wide association studies of 309 known metabolites were used as instrumental variables. We selected 10 dental traits, including clinical measures of dental diseases, from the Gene-Lifestyle Interactions in Dental Endpoints Consortium and self-reported oral health data from the UK Biobank. The causal relationships between metabolites and dental traits were inferred using the inverse variance-weighted approach and further controlled for horizontal pleiotropy using 5 additional MR methods. After correcting for multiple tests, 5 metabolites were identified as causal biomarkers. Genetically predicted increased levels of mannose were associated with lower risk of bleeding gums (odds ratio [OR] = 0.72; 95% confidence interval [CI], 0.61-0.85; P = 9.9 × 10-5). MR also indicated 4 metabolites on the causal pathway to dentures, with fructose (OR = 0.50; 95% CI, 0.36-0.70; P = 5.2 × 10-5) and 1-palmitoleoyl-glycerophosphocholine (OR = 0.67; 95% CI, 0.56-0.81; P = 4.8 × 10-5) as potential protective factors and glycine (OR = 1.22; 95% CI, 1.11-1.35; P = 5.6×10-5) and 1,5-anhydroglucitol (OR = 1.32; 95% CI, 1.14-1.52; P = 1.5 × 10-4) as risk factors. The causal associations were robust in various sensitivity analyses. We further observed some shared metabolites among different dental traits, implying similar biological mechanisms underlying the pathogenic processes. Finally, the pathway analysis revealed several significant metabolic pathways that may be involved in the development of dental disorders. Our study provides novel insights into the combination of metabolomics and genomics to reveal the pathogenesis of and therapeutic strategies for dental disorders. It highlighted 5 metabolites and several pathways as causal candidates, warranting further investigation.
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Affiliation(s)
- Q Zheng
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing, China
| | - W Li
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
- Key Laboratory of Dental Material, National Medical Products Administration, Beijing, China
- Institute of Medical Technology, Peking University Health Science Center, Beijing, China
| | - Y Zhang
- Henan Academy of Sciences, Zhengzhou, Henan, China
| | - X Liu
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
- Key Laboratory of Dental Material, National Medical Products Administration, Beijing, China
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y Fu
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - S Luo
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Deng
- Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
- Key Laboratory of Dental Material, National Medical Products Administration, Beijing, China
| | - C Zeng
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing, China
- Henan Academy of Sciences, Zhengzhou, Henan, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China
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Shen Y, Yang T, Zeng H, Meng W, Deng X, Wei M, Wang Z. Low anterior resection syndrome and quality of life after intersphincteric resection for rectal cancer: a propensity score-matched study. Tech Coloproctol 2023; 27:1307-1317. [PMID: 37804461 DOI: 10.1007/s10151-023-02848-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/26/2023] [Indexed: 10/09/2023]
Abstract
PURPOSE Our aim was to perform a propensity score-matched study to compare the long-term functional outcomes and quality of life following intersphincteric resection vs. low anterior resection (LAR) with very low anastomosis. METHODS Patients who underwent intersphincteric resection or low anterior resection with low anastomosis (≤ 4 cm from the anal verge) for rectal cancer between January 2017 and June 2020 were retrospectively included. A propensity score-matching process was performed. Functional outcomes and quality of life were assessed using the European Quality of Life 5 Dimensions 3 Level Version (EQ-5D-3L), EORC-QLQ C30, EORC-QLQ CR29, Low Anterior Resection Syndrome (LARS), Wexner, and International Prostate Symptom Score (IPSS) questionnaires. The primary outcome was the presence of LARS at least 12 months after surgery. The second outcome was the postoperative quality of life of included patients. RESULTS After propensity matching, 128 patients were included, including 58 males and 70 females with a median age of 59.5. Patients in the intersphincteric resection group showed a higher incidence of incontinence to flatus (32.8% versus 14.0%, p = 0.043) and stools (42.2% versus 21.9%, p = 0.046), pain/discomfort (25.0% versus 7.8%, p = 0.001), and bowel dysfunction, while the LARS scores (15.0 versus 13.2, p = 0.461) and major LARS rates (26.6% versus 14.1%, p = 0.078) were comparable in both groups. CONCLUSION ISR leads to increased bowel incontinence rate and increased anal pain, without affecting the grade of low anterior resection syndrome, fecal urgency, and clustering. LAR might be the preferred sphincteric-preserving approach when negative resection margins and a safe anastomosis are guaranteed. Patients should be fully informed about potential functional impairment after sphincter-preservation procedures.
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Affiliation(s)
- Y Shen
- Department of General Surgery, Colorectal Cancer Center, West China Hospital, Sichuan University, Guo Xue Xiang 37#, Chengdu, Sichuan Province, China
| | - T Yang
- Department of General Surgery, Colorectal Cancer Center, West China Hospital, Sichuan University, Guo Xue Xiang 37#, Chengdu, Sichuan Province, China
| | - H Zeng
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - W Meng
- Department of General Surgery, Colorectal Cancer Center, West China Hospital, Sichuan University, Guo Xue Xiang 37#, Chengdu, Sichuan Province, China
| | - X Deng
- Department of General Surgery, Colorectal Cancer Center, West China Hospital, Sichuan University, Guo Xue Xiang 37#, Chengdu, Sichuan Province, China.
| | - M Wei
- Department of General Surgery, Colorectal Cancer Center, West China Hospital, Sichuan University, Guo Xue Xiang 37#, Chengdu, Sichuan Province, China.
| | - Z Wang
- Department of General Surgery, Colorectal Cancer Center, West China Hospital, Sichuan University, Guo Xue Xiang 37#, Chengdu, Sichuan Province, China.
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Su Y, He HQ, Zhou Y, Deng X. [A systematic review in health economics research on the expansion of human papilloma virus vaccination population to men]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1869-1877. [PMID: 38008579 DOI: 10.3760/cma.j.cn112150-20230313-00180] [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: 11/28/2023]
Abstract
Objective: To systematically collect and evaluate the health economics research of Human papilloma virus(HPV) vaccination population expansion to men, and to provide evidence for optimizing HPV vaccine immunization strategies. Methods: Health economics research studies on male HPV vaccination published in databases including PubMed, Web of Science, CNKI, and Wanfang Database from January 2010 to September 2022 were collected according to the systematic evaluation research design. The quality of the studies was assessed using the health economics evaluation reporting standards (2022 edition) (CHEERS 2022), with full score of 28. The results of the studies were reviewed and analyzed systematically. Results: A total of 21 studies complies with the criteria were included, all of which was foreign research. The average CHEERS score of the literatures was 25.71 points, range from 23 to 28 points. 85.71% (12/14) studies of the gender-neutral population showed that including male in HPV vaccination were more consistent with the cost effectiveness than female vaccination alone under certain conditions (target at adolescents of 10 to 15 years old or adults under 26 years old). 80.00% (4/5) of the studies target at ordinary men only were proved that male vaccination with HPV vaccine was in line with the cost-effectiveness. 2 studies targeting men who have sex with men (MSM) were both concluded that it met the cost-effectiveness. In addition, the results of 2 gender-neutral population studies and 1 study on men alone showed that extending HPV vaccination to men did not conform to cost effectiveness. The main reasons for the non-cost-effectiveness included the high price of vaccines and the age of vaccination. Conclusion: The quality of the health economics evaluation studies on expanding HPV vaccination to the male population is high. Vaccination targeting adolescents and young men as well as special groups (such as MSM) are likely to be cost-effective, and vaccinations for other groups are still need further evaluated. It is recommended that relevant research should be conducted to provide evidence for expanding the scope of HPV vaccination to men in China.
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Affiliation(s)
- Y Su
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - H Q He
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y Zhou
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X Deng
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
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11
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Ge Z, Yang M, Wei D, Wang D, Zhao R, Deng X, Tang Y, Fang Q, Xiong Z, Wang C, Wang G, Li W, Tang K. Inhibition of IKKβ via a DNA-Based In Situ Delivery System Improves Achilles Tendinopathy Healing in a Rat Model. Am J Sports Med 2023; 51:3533-3545. [PMID: 37804159 DOI: 10.1177/03635465231198501] [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] [Indexed: 10/09/2023]
Abstract
BACKGROUND The inhibition of IKKβ by the inhibitor 2-amino-6-[2-(cyclopropylmethoxy)-6-hydroxyphenyl]-4-(4-piperidinyl)-3-pyridine carbonitrile (ACHP) is a promising strategy for the treatment of Achilles tendinopathy. However, the poor water solubility of ACHP severely hinders its in vivo application. Moreover, the effective local delivery of ACHP to the tendon and its therapeutic effects have not been reported. PURPOSE To investigate the therapeutic effects of IKKβ inhibition via injection of ACHP incorporated into a DNA supramolecular hydrogel in a collagenase-induced tendinopathy rat model. STUDY DESIGN Controlled laboratory study. METHODS Dendritic DNA, a Y-shaped monomer, and a crosslinking monomer were mixed with ACHP and self-assembled into an ACHP-DNA supramolecular hydrogel (ACHP-Gel). The effects of ACHP-Gel in tendon stem/progenitor cells were investigated via RNA sequencing and validated using quantitative reverse transcription polymerase chain reaction (qRT-PCR). A total of 120 collagenase-induced rats were randomly assigned to 5 groups: blank, phosphate-buffered saline (PBS), DNA-Gel, ACHP, and ACHP-Gel. Healing outcomes were evaluated using biomechanic and histologic evaluations at 4 and 8 weeks. RESULTS ACHP-Gel enhanced the solubility of ACHP and sustained its release for ≥21 days in vivo, which significantly increased the retention time of ACHP and markedly reduced the frequency of administration. RNA sequencing and qRT-PCR showed that ACHP effectively downregulated genes related to inflammation and extracellular matrix remodeling and upregulated genes related to tenogenic differentiation. The cross-sectional area (P = .024), load to failure (P = .002), stiffness (P = .039), and elastic modulus (P = .048) significantly differed between the ACHP-Gel and PBS groups at 8 weeks. The ACHP-Gel group had better histologic scores than the ACHP group at 4 (P = .042) and 8 weeks (P = .009). Type I collagen expression (COL-I; P = .034) and the COL-I/collagen type III ratio (P = .015) increased while interleukin 6 expression decreased (P < .001) in the ACHP-Gel group compared with the ACHP group at 8 weeks. CONCLUSION DNA supramolecular hydrogel significantly enhanced the aqueous solubility of ACHP and increased its release-retention time. Injection frequency was markedly reduced. ACHP-Gel suppressed inflammation in Achilles tendinopathy and promoted tendon healing in a rat model. CLINICAL RELEVANCE ACHP-Gel injection is a promising strategy for the treatment of Achilles tendinopathy in clinical practice.
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Affiliation(s)
- Zilu Ge
- Trauma Medical Center, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Mingyu Yang
- Department of Orthopedics/Sports Medicine Center, First Affiliated Hospital of Third Military Medical University [Army Medical University], Chongqing, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Danfeng Wei
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dong Wang
- Trauma Medical Center, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Renliang Zhao
- Trauma Medical Center, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiangtian Deng
- Trauma Medical Center, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yunfeng Tang
- Trauma Medical Center, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qian Fang
- Trauma Medical Center, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhencheng Xiong
- Trauma Medical Center, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chengshi Wang
- Department of Endocrinology and Metabolism, Center for Diabetes and Metabolism Research, West China Hospital, Sichuan University, Chengdu, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Guanglin Wang
- Trauma Medical Center, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wei Li
- Department of Endocrinology and Metabolism, Center for Diabetes and Metabolism Research, West China Hospital, Sichuan University, Chengdu, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Kanglai Tang
- Department of Orthopedics/Sports Medicine Center, First Affiliated Hospital of Third Military Medical University [Army Medical University], Chongqing, China
- Investigation performed at Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Chahine GL, Schmidt BE, Deng X, Hsiao CT, Liu Q. Bubble dynamics in a pressure gradient with reentrant jet break through and energy loss. Ultrason Sonochem 2023; 99:106541. [PMID: 37531835 PMCID: PMC10415789 DOI: 10.1016/j.ultsonch.2023.106541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/13/2023] [Accepted: 07/28/2023] [Indexed: 08/04/2023]
Abstract
The dynamics of a bubble in a pressure gradient is investigated experimentally and numerically with particular emphasis on the behavior at reentrant jet impact and break through the opposite side of the bubble with corresponding energy loss and vorticity generation. High speed photography observations of a bubble generated by electric spark energy deposit in a low ambient pressure tank are coupled with wavelet based Optical Flow Velocimetry (wOFV) and Boundary Element Method (BEM) numerical analysis to examine the flow field resulting from the reentrant jet formation and break through. We study, as an illustration, the effects of the constant pressure gradient due to gravity on the bubble dynamics. Energy losses between the first and second cycle are measured for the bubbles generated under various conditions characterized by a non-dimensional pressure gradient parameter, and the corresponding measured energy loss is used in the numerical simulations. Good correspondence is seen between the image analysis, the wOFV computations, and the BEM results and insight is gained on the involved physics.
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Affiliation(s)
- G L Chahine
- Dynaflow, Inc., 10621 Iron Bridge Road, Jessup, MD, USA.
| | - B E Schmidt
- Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, USA
| | - X Deng
- Dynaflow, Inc., 10621 Iron Bridge Road, Jessup, MD, USA
| | - C-T Hsiao
- Dynaflow, Inc., 10621 Iron Bridge Road, Jessup, MD, USA
| | - Q Liu
- Dynaflow, Inc., 10621 Iron Bridge Road, Jessup, MD, USA
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13
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Peng Y, Chen S, Liu Y, Zhao L, Liu P, An Q, Zhao C, Deng X, Deraniyagala RL, Stevens CW, Ding X. Mitigation of Dosimetric Uncertainty in MRI-Based Proton Planning Using Spot-Scanning Proton Arc (SPArc) Technique. Int J Radiat Oncol Biol Phys 2023; 117:e614-e615. [PMID: 37785844 DOI: 10.1016/j.ijrobp.2023.06.1992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) MRI-based synthetic CT (SCT) images created using generative adversarial network (GAN) have been demonstrated to be feasible for intensity-modulated proton therapy (IMPT) planning. However, dose calculation accuracy can be uncertain in some regions within/near the target of head and neck patients due to the local CT number estimation error or sharp dose fall-off. This study investigated the feasibility of using the SPArc technique to mitigate such dosimetric uncertainty. MATERIALS/METHODS A GAN using a 3D U-net as the generator and a 6-layer 3D convolutional neural network as the discriminator was trained with T1-weighted MR-CT image pairs from 162 nasopharyngeal carcinoma patients (14 for validation). The generator was used to generate SCT images from MR images for 7 test patients. For each test patient, the CT image was used to create a SPArc plan and an IMPT plan with the same clinical objectives. The SPArc plans (control point frequency sampling, arc trajectory, etc.) were optimized using a previously developed iterative approach. The dose distributions of both SPArc plans and IMPT plans were re-calculated on the SCT images and compared to the one calculated on the CT images. The dosimetric uncertainty was quantified using the gamma index. RESULTS The 2%/2mm and 3%/3mm passing rates for SPArc plans were (96.9¡À2.7) % and (98.6¡À1.5) %, while the passing rates for IMPT plans were (94.0¡À3.9) % and (96.4+2.9) %. A significant reduction in dosimetric uncertainty was identified for SPArc plans (p ¡Ü0.021). Table 1 shows the passing rates for the 7 test individuals. CONCLUSION SPArc can mitigate the uncertainty of dose calculation in MRI-based proton planning. Further research needs to validate these findings on a larger patient cohort. The study paves the road map for using MRI for SPArc planning.
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Affiliation(s)
- Y Peng
- Department of Radiation Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - S Chen
- Department of Radiation Oncology, Beaumont Health, Royal Oak, MI
| | - Y Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - L Zhao
- Department of Radiation Oncology, Corewell Health William Beaumont University Hospital, Royal Oak, MI
| | - P Liu
- Department of Radiation Oncology, Peking University First Hospital, Beijing, China
| | - Q An
- William Beaumont Hospital, Royal Oak, MI
| | - C Zhao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - X Deng
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - R L Deraniyagala
- Department of Radiation Oncology, Beaumont Health, Royal Oak, MI
| | - C W Stevens
- Department of Radiation Oncology, Beaumont Health, Royal Oak, MI
| | - X Ding
- Department of Radiation Oncology, Beaumont Health, Royal Oak, MI
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Gong M, Wang K, Sun H, Wang K, Zhou Y, Cong Y, Deng X, Mao Y. Threshold of 25(OH)D and consequently adjusted parathyroid hormone reference intervals: data mining for relationship between vitamin D and parathyroid hormone. J Endocrinol Invest 2023; 46:2067-2077. [PMID: 36920734 PMCID: PMC10514164 DOI: 10.1007/s40618-023-02057-9] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 03/02/2023] [Indexed: 03/16/2023]
Abstract
PURPOSE By recruiting reference population, we aimed to (1): estimate the 25(OH)D threshold that maximally inhibits the PTH, which can be defined as the cutoff value for vitamin D sufficiency; (2) establish the PTH reference interval (RI) in population with sufficient vitamin D. METHODS Study data were retrieved from LIS (Laboratory Information Management System) under literature suggested criteria, and outliers were excluded using Tukey fence method. Locally weighted regression (LOESS) and segmented regression (SR) were conducted to estimate the threshold of 25(OH)D. Multivariate linear regression was performed to evaluate the associations between PTH concentration and variables including 25(OH)D, gender, age, estimated glomerular filtration rate (EGFR), body mass index (BMI), albumin-adjusted serum calcium (aCa), serum phosphate(P), serum magnesium(Mg), and blood collection season. Z test was adopted to evaluate whether the reference interval should be stratified by determinants such as age and gender. RESULTS A total of 64,979 apparently healthy subjects were recruited in this study, with median (Q1, Q3) 25(OH)D of 45.33 (36.15, 57.50) nmol/L and median (Q1, Q3) PTH of 42.19 (34.24, 52.20) ng/L. The segmented regression determined the 25(OH)D threshold of 55 nmol/L above which PTH would somewhat plateau and of 22 nmol/L below which PTH would rise steeply. Multivariate linear regression suggested that gender, EGFR, and BMI were independently associated with PTH concentrations. The PTH RI was calculated as 22.17-72.72 ng/L for subjects with 25(OH)D ≥ 55 nmol/L with no necessity of stratification according to gender, age, menopausal status nor season. CONCLUSION This study reported 25(OH)D thresholds of vitamin D sufficiency at 55 nmol/L and vitamin D deficiency at 22 nmol/L, and consequently established PTH RIs in subjects with sufficient vitamin D for northern China population for the first time.
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Affiliation(s)
- M Gong
- Department of Laboratory Medicine, Second Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - K Wang
- Department of Laboratory Medicine, Second Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - H Sun
- Department of Laboratory Medicine, Second Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - K Wang
- Department of Laboratory Medicine, Second Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Y Zhou
- Department of Laboratory Medicine, Second Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Y Cong
- Department of Laboratory Medicine, Second Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - X Deng
- Department of Laboratory Medicine, Second Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases, Beijing, China.
| | - Y Mao
- Department of Laboratory Medicine, Fifth Medical Center, Chinese PLA General Hospital, Beijing, China.
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Ge Z, Li W, Zhao R, Xiong W, Wang D, Tang Y, Fang Q, Deng X, Zhang Z, Zhou Y, Chen X, Li Y, Lu Y, Wang C, Wang G. Programmable DNA Hydrogel Provides Suitable Microenvironment for Enhancing TSPCS Therapy in Healing of Tendinopathy. Small 2023; 19:e2207231. [PMID: 37066733 DOI: 10.1002/smll.202207231] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 03/17/2023] [Indexed: 06/19/2023]
Abstract
Tendon stem/progenitor cells (TSPCs) therapy is a promising strategy for enhancing cell matrix and collagen synthesis, and regulating the metabolism of the tendon microenvironment during tendon injury repair. Nevertheless, the barren microenvironment and gliding shear of tendon cause insufficient nutrition supply, damage, and aggregation of injected TSPCs around tendon tissues, which severely hinders their clinical application in tendinopathy. In this study, a TSPCs delivery system is developed by encapsulating TSPCs within a DNA hydrogel (TSPCs-Gel) as the DNA hydrogel offers an excellent artificial extracellular matrix (ECM) microenvironment by providing nutrition for proliferation and protection against shear forces. This delivery method restricts TSPCs to the tendons, significantly extending their retention time. It is also found that TSPCs-Gel injections can promote the healing of rat tendinopathy in vivo, where cross-sectional area and load to failure of injured tendons in rats are significantly improved compared to the free TSPCs treatment group at 8 weeks. Furthermore, the potential healing mechanism of TSPCs-Gel is investigated by RNA-sequencing to identify a series of potential gene and signaling pathway targets for further clinical treatment strategies. These findings suggest the potential pathways of using DNA hydrogels as artificial ECMs to promote cell proliferation and protect TSPCs in TSPC therapy.
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Affiliation(s)
- Zilu Ge
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wei Li
- Department of Endocrinology and Metabolism, Center for Diabetes and Metabolism Research, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Renliang Zhao
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wei Xiong
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Dong Wang
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yunfeng Tang
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qian Fang
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiangtian Deng
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhen Zhang
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yaojia Zhou
- Animal Experimental Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaoting Chen
- Animal Experimental Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yue Li
- Core Facility of West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yanrong Lu
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Chengshi Wang
- Department of Endocrinology and Metabolism, Center for Diabetes and Metabolism Research, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Guanglin Wang
- Trauma Medical Center, Department of Orthopaedic surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
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Liu N, Ji X, Song Z, Deng X, Wang J. Effect of dietary lutein on the egg production, fertility, and oxidative injury indexes of aged hens. Anim Biosci 2023; 36:1221-1227. [PMID: 37170520 PMCID: PMC10330968 DOI: 10.5713/ab.22.0473] [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: 12/18/2022] [Revised: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 05/13/2023] Open
Abstract
OBJECTIVE The present study aimed to investigate the effect of dietary lutein on egg production, follicles, reproductive hormones, fertility, hatchability, and oxidative injury indexes of hens. METHODS Treatments consisted of a control diet (CON) and three lutein-supplementing diets at 25 (L1), 50 (L2), or 75 (L3) mg/kg of diet. Egg production was measured using 576 Arbor Acres breeder hens at 61 to 65 wk and follicles grades, reproductive hormones, fertility, hatchability, tissue lutein contents, and oxidative injury indexes were determined at 65 wk. RESULTS The results showed that at 65 wk, lutein- supplementing diets increased (p<0.05) egg production, follicular grades, fertility, hatchability, estradiol (E2), luteinizing hormone, progesterone (PROG), lutein content in the serum and yolk, compared to CON. L2 and L3 showed more pronounced (p<0.05) effects on egg production, PROG, and yolk lutein content than L1. With the increase of lutein doses from 25 to 75 mg/kg, there were linear increases (p<0.05) in egg production, lutein content, and PROG, and a quadratic trend (p<0.05) in E2. For the oxidative injury products, lutein-supplementing diets decreased (p<0.05) malondialdehyde (MDA) and protein carbonyl (PCO) in the serum, MDA and 8-hydroxy 2 deoxyguanosine (8-OHdG) in the yolk. There were linear decreases (p<0.05) in 8-OHdG in the serum, MDA, PCO, and 8-OHdG in the yolk, a quadratic trend (p<0.05) on serum 8-OHdG. CONCLUSION It is concluded that lutein supplementation can improve egg production and fertility by beneficially regulating reproductive hormones and oxidative status in aged hens.
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Affiliation(s)
- N. Liu
- Department of Animal Science, Henan University of Science and Technology, Luoyang, Henan 471000,
China
- National Engineering Research Center of Biological Feed, Beijing 100081,
China
| | - X. Ji
- Department of Animal Science, Henan University of Science and Technology, Luoyang, Henan 471000,
China
| | - Z. Song
- Department of Animal Science, Henan University of Science and Technology, Luoyang, Henan 471000,
China
| | - X. Deng
- National Engineering Research Center of Biological Feed, Beijing 100081,
China
| | - J. Wang
- Department of Animal Science, Henan University of Science and Technology, Luoyang, Henan 471000,
China
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17
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Wang SY, Pan XJ, Deng X, Fu J, Zhang HJ, Ding LL, Chen ZP. [Enlightening from optimizing post-authorization safety monitoring system of SARS-CoV-2 vaccines in major economies worldwide]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1096-1104. [PMID: 37482744 DOI: 10.3760/cma.j.cn112150-20230116-00038] [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: 07/25/2023]
Abstract
Ongoing global pandemic of Coronavirus Disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has promoted the unprecedented rapid development and large-scale rolling out of different platform-based COVID-19 vaccines worldwide. How to effectively respond to the expected scale increasing adverse events after vaccination campaign of COVID-19 vaccines is a common problem faced by the world. A lot of countries and regions around the world have arranged in advance at different levels, optimizing the original vaccine safety monitoring system from the perspectives of strengthening the foundation and capabilities, promoting internal and external cooperation, upgrading methods, as well as improving transparency and public communication, which has ensured the good and efficient operation of the system and can provide reference for the construction of relevant fields in China.
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Affiliation(s)
- S Y Wang
- Department of Immunization Programme, Zhejiang Provincial Center for Diseases Control and Prevention, Hangzhou 310051, China
| | - X J Pan
- Department of Immunization Programme, Zhejiang Provincial Center for Diseases Control and Prevention, Hangzhou 310051, China
| | - X Deng
- Department of Immunization Programme, Zhejiang Provincial Center for Diseases Control and Prevention, Hangzhou 310051, China
| | - J Fu
- Department of Immunization Programme, Zhejiang Provincial Center for Diseases Control and Prevention, Hangzhou 310051, China
| | - H J Zhang
- Department of Immunization Programme, Zhejiang Provincial Center for Diseases Control and Prevention, Hangzhou 310051, China
| | - L L Ding
- Department of Immunization Programme, Zhejiang Provincial Center for Diseases Control and Prevention, Hangzhou 310051, China
| | - Z P Chen
- Zhejiang Provincial Center for Diseases Control and Prevention, Hangzhou 310051, China
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18
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Liu W, Chen W, Xie M, Chen C, Shao Z, Zhang Y, Zhao H, Song Q, Hu H, Xing X, Cai X, Deng X, Li X, Wang P, Liu G, Xiong L, Lv X, Zhang Y. Traumatic brain injury stimulates sympathetic tone-mediated bone marrow myelopoiesis to favor fracture healing. Signal Transduct Target Ther 2023; 8:260. [PMID: 37402714 DOI: 10.1038/s41392-023-01457-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 04/08/2023] [Accepted: 04/25/2023] [Indexed: 07/06/2023] Open
Abstract
Traumatic brain injury (TBI) accelerates fracture healing, but the underlying mechanism remains largely unknown. Accumulating evidence indicates that the central nervous system (CNS) plays a pivotal role in regulating immune system and skeletal homeostasis. However, the impact of CNS injury on hematopoiesis commitment was overlooked. Here, we found that the dramatically elevated sympathetic tone accompanied with TBI-accelerated fracture healing; chemical sympathectomy blocks TBI-induced fracture healing. TBI-induced hypersensitivity of adrenergic signaling promotes the proliferation of bone marrow hematopoietic stem cells (HSCs) and swiftly skews HSCs toward anti-inflammation myeloid cells within 14 days, which favor fracture healing. Knockout of β3- or β2-adrenergic receptor (AR) eliminate TBI-mediated anti-inflammation macrophage expansion and TBI-accelerated fracture healing. RNA sequencing of bone marrow cells revealed that Adrb2 and Adrb3 maintain proliferation and commitment of immune cells. Importantly, flow cytometry confirmed that deletion of β2-AR inhibits M2 polarization of macrophages at 7th day and 14th day; and TBI-induced HSCs proliferation was impaired in β3-AR knockout mice. Moreover, β3- and β2-AR agonists synergistically promote infiltration of M2 macrophages in callus and accelerate bone healing process. Thus, we conclude that TBI accelerates bone formation during early stage of fracture healing process by shaping the anti-inflammation environment in the bone marrow. These results implicate that the adrenergic signals could serve as potential targets for fracture management.
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Affiliation(s)
- Weijian Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Wei Chen
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Mao Xie
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chao Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yiran Zhang
- School of Medicine, Nankai University, Tianjin, 300071, China
| | - Haiyue Zhao
- School of Medicine, Nankai University, Tianjin, 300071, China
| | - Qingcheng Song
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
- Animal Center of Hebei Ex & In vivo Biotechnology, Shijiazhuang, 050051, China
| | - Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Xin Xing
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Xianyi Cai
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiangtian Deng
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Xinyan Li
- Department of Physiology, School of Basic Medicine and Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Peng Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Guohui Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Liming Xiong
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Xiao Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Yingze Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China.
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Li L, Li J, Zhou P, He Y, Li Y, Deng X, Jiang H, Liu J, Li Z. Decreased medial posterior tibial slope is associated with an increased risk of posterior cruciate ligament rupture. Knee Surg Sports Traumatol Arthrosc 2023; 31:2966-2973. [PMID: 36622419 DOI: 10.1007/s00167-023-07308-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 01/02/2023] [Indexed: 01/10/2023]
Abstract
PURPOSE It remains unclear whether there is an association between posterior cruciate ligament (PCL) rupture and the medial posterior tibial slope (MTS) or lateral posterior tibial slope (LTS). The present case-control study aimed to investigate a possible association between primary PCL rupture and MTS or LTS measured by magnetic resonance imaging (MRI). METHODS A retrospective case-control study was conducted. Patients with primary PCL ruptures but not with anterior cruciate ligament injuries, were 1:1 matched by age and sex to a control group with no evidence of knee ligament injuries. Knee MRI was used to measure the MTS and LTS. In addition, the receiver operating characteristic (ROC) analysis was performed to identify an optimal cut-off value of the MTS and/or LTS. RESULTS In total, 46 patients with PCL ruptures (32 males, 14 females) and 46 controls (32 males, 14 females) were included in this study. The MTS was significantly lower in the patients with PCL ruptures (3.0° ± 2.2°) than in the control group (5.1° ± 2.3°, p < 0.001). The mean LTS/MTS ratio was significantly higher in patients with PCL ruptures (2.6 ± 2.5) than in the control group (1.3 ± 1.3, p = 0.001). However, the LTS was not significantly different between patients with PCL ruptures and the controls (4.4° ± 2.3° vs. 5.3° ± 2.6°, n.s.). After the MTS was determined to be a significant predictor, the ROC analysis was performed. The ROC analysis revealed the most accurate MTS cut-off of < 3.9°, with a sensitivity of 76.1% and a specificity of 73.9%. CONCLUSION A decreased MTS and an increased LTS/MTS ratio are associated with an increased risk of primary PCL rupture. People with MTS < 3.9° are particularly at risk for PCL ruptures, and prevention and intervention programs for PCL ruptures should be developed and targeted towards them. LEVELS OF EVIDENCE Level III.
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Affiliation(s)
- Lingzhi Li
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, 646000, Sichuan, People's Republic of China
| | - Jun Li
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, 646000, Sichuan, People's Republic of China
| | - Peng Zhou
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, 646000, Sichuan, People's Republic of China
| | - Yanwei He
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, 646000, Sichuan, People's Republic of China
| | - Yuan Li
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, 646000, Sichuan, People's Republic of China
| | - Xiangtian Deng
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Hao Jiang
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, 646000, Sichuan, People's Republic of China
| | - Juncai Liu
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, 646000, Sichuan, People's Republic of China.
| | - Zhong Li
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, 646000, Sichuan, People's Republic of China.
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20
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Huang Y, Ding X, Huang N, Chen C, Deng X. [Construction and biological characterization of a Proteus mirabilis strain with modABC gene deletion]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:859-867. [PMID: 37313829 DOI: 10.12122/j.issn.1673-4254.2023.05.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To construct a modABC gene knockout strain of Proteus mirabilis and explore the effect of modABC gene deletion on biological characteristics of Proteus mirabilis. METHODS Fusion PCR was used to obtain the fusion gene of modABC and the kanamycin-resistant gene Kn, which was ligated with the suicide vector pCVD442 and transduced into Proteus mirabilis. The modABC gene knockout strain of Proteus mirabilis was obtained after homologous recombination with the suicide vector. PCR and Sanger sequencing were used to identify genomic deletion of modABC gene in the genetically modified strain. The concentration of molybdate in the wild-type and gene knockout strains was determined using inductively coupled plasma mass spectrometry (ICP-MS), and their survival ability in LB medium was compared under both aerobic and anaerobic conditions. RESULTS PCR and sanger sequencing confirmed genomic deletion of modABC gene in the obtained Proteus mirabilis strain. The concentration of intracellular molybdenum in the modABC gene knockout strain was 1.22 mg/kg, significantly lower than that in the wild-type strain (1.46 mg/kg, P < 0.001). Under the aerobic condition, the modABC gene knockout strain grown in LB medium showed no significant changes in survival ability compared with the wild-type strain, but its proliferation rate decreased significantly under the anaerobic condition and also when cultured in nitrate-containing LB medium under anaerobic condition. CONCLUSION Homologous recombination with the suicide vector can be used for modABC gene knockout in Proteus mirabilis. modABC gene participates in molybdate uptake and is associated with anaerobic growth of Proteus mirabilis in the presence of nitrate.
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Affiliation(s)
- Y Huang
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou 510180, China
- KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou 510180, China
| | - X Ding
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou 510180, China
- KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou 510180, China
| | - N Huang
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou 510180, China
- KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou 510180, China
| | - C Chen
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou 510180, China
- KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou 510180, China
| | - X Deng
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou 510180, China
- KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou 510180, China
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Ma Y, Zou L, Liang Y, Liu Q, Sun Q, Pang Y, Lin H, Deng X, Tang S. [Rapid detection and genotyping of SARS-CoV-2 Omicron BA.4/5 variants using a RT-PCR and CRISPR-Cas12a-based assay]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:516-526. [PMID: 37202186 DOI: 10.12122/j.issn.1673-4254.2023.04.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
OBJECTIVE To establish a rapid detection and genotyping method for SARS-CoV-2 Omicron BA.4/5 variants using CRISPPR-Cas12a gene editing technology. METHODS We combined reverse transcription-polymerase chain reaction (RT-PCR) and CRISPR gene editing technology and designed a specific CRISPPR RNA (crRNA) with suboptimal protospacer adjacent motifs (PAM) for rapid detection and genotyping of SARS- CoV-2 Omicron BA.4/5 variants. The performance of this RT- PCR/ CRISPPR-Cas12a assay was evaluated using 43 clinical samples of patients infected by wild-type SARS-CoV-2 and the Alpha, Beta, Delta, Omicron BA. 1 and BA. 4/5 variants and 20 SARS- CoV- 2-negative clinical samples infected with 11 respiratory pathogens. With Sanger sequencing method as the gold standard, the specificity, sensitivity, concordance (Kappa) and area under the ROC curve (AUC) of RT-PCR/CRISPPR-Cas12a assay were calculated. RESULTS This assay was capable of rapid and specific detection of SARS- CoV-2 Omicron BA.4/5 variant within 30 min with the lowest detection limit of 10 copies/μL, and no cross-reaction was observed in SARS-CoV-2-negative clinical samples infected with 11 common respiratory pathogens. The two Omicron BA.4/5 specific crRNAs (crRNA-1 and crRNA-2) allowed the assay to accurately distinguish Omicron BA.4/5 from BA.1 sublineage and other major SARS-CoV-2 variants of concern. For detection of SARS-CoV-2 Omicron BA.4/5 variants, the sensitivity of the established assay using crRNA-1 and crRNA-2 was 97.83% and 100% with specificity of 100% and AUC of 0.998 and 1.000, respectively, and their concordance rate with Sanger sequencing method was 92.83% and 96.41%, respectively. CONCLUSION By combining RT-PCR and CRISPPR-Cas12a gene editing technology, we successfully developed a new method for rapid detection and identification of SARS-CoV-2 Omicron BA.4/5 variants with a high sensitivity, specificity and reproducibility, which allows rapid detection and genotyping of SARS- CoV-2 variants and monitoring of the emerging variants and their dissemination.
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Affiliation(s)
- Y Ma
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - L Zou
- Institute of Pathogenic Microbiology, Guangdong Provincial Center for Disease Control and Prevention, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Guangzhou 511430, China
| | - Y Liang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Q Liu
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Q Sun
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Y Pang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - H Lin
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - X Deng
- Institute of Pathogenic Microbiology, Guangdong Provincial Center for Disease Control and Prevention, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Guangzhou 511430, China
| | - S Tang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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22
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Zhao H, Deng X, Liu W, Chen W, Wang L, Zhang Y, Wang Z, Wang Y, Lian X, Hou Z, Zhang Q, Zhang Y. Proximal femoral bionic nail (PFBN)-an innovative surgical method for unstable femoral intertrochanteric fractures. Int Orthop 2023; 47:1089-1099. [PMID: 36719445 DOI: 10.1007/s00264-023-05696-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 01/07/2023] [Indexed: 02/01/2023]
Abstract
PURPOSE Intertrochanteric femoral fractures (IFF) are one of the most common traumatic conditions, but there are no established treatment methods for this condition due to implant failure and re-operation rates. The proximal femoral bionic nail (PFBN), which is a new design of the cephalomedullary nail, was developed by our team. The objective of this study was to assess the clinical and radiographic outcomes of PFBN in patients with unstable IFF. METHODS From October 2020 to August 2021, 12 patients diagnosed with unstable IFF (31-A2, 3) were treated with PFBN at the Third Hospital of Hebei Medical University. We evaluated the clinical therapeutic effects of this treatment by measuring peri-operative indicators and post-operative complications. Clinical outcomes, specific radiographic parameters, and post-operative complications were collected and analyzed within the first post-operative year. RESULTS The average age of the patients was 72.4 ± 16.1 years (five males and seven females). The mean operation time was 90.4 ± 16.0 min, whereas the operation time of 31-A2 fractures (83.1 ± 12.2 min) was shorter than that of 31-A3 fractures (105.0 ± 12.9 min) (p < 0.05). The blood loss was 175 ml (range: 50 to 500 ml), and the length of hospitalization was 10.0 ± 1.9 days. The prognosis evaluation was assessed at three, six and 12 months after the operation; for these time points, the Harris hip scores were 69.6 ± 4.1, 77.8 ± 3.8, and 82.6 ± 4.6, respectively, and the Parker-Palmer scores were 5.3 (5.0, 7.0), 6.3 (5.3, 7.0), and 7.8 (7.0, 8.0), respectively. CONCLUSION PFBN has shown advantages in the treatment of unstable IFF (particularly in geriatric patients) and possesses both stability and safety. This innovative method may provide a new option for treating unstable IFFs.
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Affiliation(s)
- Haiyue Zhao
- School of Medicine, Nankai University, Tianjin, 300071, China
| | - Xiangtian Deng
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Weijian Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wei Chen
- Department of Orthopedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Lei Wang
- School of Medicine, Nankai University, Tianjin, 300071, China
| | - Yiran Zhang
- School of Medicine, Nankai University, Tianjin, 300071, China
| | - Zhongzheng Wang
- Department of Orthopedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Yuchuan Wang
- Department of Orthopedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Xiaodong Lian
- Department of Orthopedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Zhiyong Hou
- Department of Orthopedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Qi Zhang
- Department of Orthopedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
| | - Yingze Zhang
- Department of Orthopedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
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Wang Y, Wang Z, Zhu Y, Fu L, Deng X, Chen W, Zhang Y. New Classification Based on CT and Its Value Evaluation for Fractures of the Lateral Process of the Talus. J Foot Ankle Surg 2023:S1067-2516(23)00016-9. [PMID: 36813634 DOI: 10.1053/j.jfas.2023.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/27/2022] [Accepted: 01/22/2023] [Indexed: 02/24/2023]
Abstract
This study aimed to develop a comprehensive classification system for fractures of the lateral process of the talus (LPTF) based on CT, and to evaluate its prognostic value, reliability and reproducibility. We retrospectively reviewed 42 patients involving LPTF with an average follow-up of 35.9 months for clinical and radiographic evaluations. In order to develop a comprehensive classification, a panel of experienced orthopedic surgeons discussed the cases. All fractures were classified according to Hawkins, McCrory-Bladin and new proposed classifications by 6 observers. The analysis of interobserver and intraobserver agreements was measured using kappa statistics. The new classification included 2 types based on presence of concomitant injuries or not, with type I consisting of 3 subtypes and type II of 5 subtypes. Average AOFAS score was 91.5 in the type Ia of new classification, 86 in type Ib, 90.5 in type Ic, 89 in type IIa, 76.7 in type IIb, 76.6 in type IIc, 91.3 in type IId, and 83.5 in type IIe. Interobserver and intraobserver reliability of the new classification system were almost perfect (κ = 0.776 and 0.837, respectively), showing a higher interobserver and intraobserver reliability compared to the Hawkins classification (κ 0.572 and 0.649, respectively) as well as McCrory-Bladin classification (κ = 0.582 and 0.685, respectively). The new classification system is a comprehensive one that takes into account concomitant injuries and shows good prognostic value with clinical outcomes. It is more reliable and reproducible and could be a useful tool for decision-making on treatment options for LPTF.
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Affiliation(s)
- Yuchuan Wang
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, P. R. China; Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang 050051, Hebei, P. R. China
| | - Zhongzheng Wang
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, P. R. China; Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang 050051, Hebei, P. R. China
| | - Yanbin Zhu
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, P. R. China; Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang 050051, Hebei, P. R. China
| | - Lei Fu
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, P. R. China; Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang 050051, Hebei, P. R. China
| | - Xiangtian Deng
- School of Medicine, Nankai University, Tianjin 300071, P.R. China
| | - Wei Chen
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, P. R. China; Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang 050051, Hebei, P. R. China
| | - Yingze Zhang
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, P. R. China; Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; Key Laboratory of Biomechanics of Hebei Province, Shijiazhuang 050051, Hebei, P. R. China; NHC Key Laboratory of Intelligent Orthopaedic Equipment, Shijiazhuang 050051, Hebei, P. R. China; Chinese Academy of Engineering, Beijing 100088, P.R. China.
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24
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Wang R, Deng X, Ma Q, Ma F. Association between acrylamide exposure and sex hormones among premenopausal and postmenopausal women: NHANES, 2013-2016. J Endocrinol Invest 2023:10.1007/s40618-022-01976-3. [PMID: 36602706 DOI: 10.1007/s40618-022-01976-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/29/2022] [Indexed: 01/06/2023]
Abstract
PURPOSE Acrylamide (AA) is a potential carcinogen that mainly comes from fried, baked and roasted foods, and Hb adducts of AA (HbAA) and its metabolite glycidamide (HbGA) are the biomarkers of its exposure. Increasing evidence suggests that AA is associated with various hormone-related cancers. This study aims to explore the association of HbAA and HbGA with female serum sex hormone concentrations. METHODS 942 women from the National Health and Nutrition Examination Survey cycles (2013-2016) were included in this cross-sectional study. The associations between HbAA or HbGA or HbGA/HbAA and sex hormones were assessed by the multiple linear regression. Further stratified analyses were conducted to figure out the effects of menopausal status, BMI and smoking status on sex hormone levels. RESULTS Among all participants, 597 were premenopausal and 345 were postmenopausal. HbAA was positively associated with both two androgen indicators. Specifically, a ln-unit increase in HbAA was associated with 0.41 ng/dL higher ln(total testosterone, TT) (95% CI 0.00, 0.27) and 0.14 ng/dL higher ln(free testosterone) (95%CI 0.00, 0.28), respectively. However, HbGA concentrations had no association with sex hormones in the overall population. Additionally, HbGA/HbAA was negatively associated with TT and SHBG in the overall population as well as postmenopausal women. In stratified analysis, higher HbAA was associated with rising TT in postmenopausal women (β = 0.29, 95%CI 0.04, 0.53) and underweight/normal-weight women (β = 0.18, 95%CI 0.03, 0.33). Other indicators had no significant association detected in estradiol and sex hormone-binding globulin. CONCLUSION Our results revealed that HbAA was positively associated with androgen concentrations, especially in postmenopausal and BMI < 25 women.
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Affiliation(s)
- R Wang
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - X Deng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan Province, China
| | - Q Ma
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - F Ma
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
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25
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Li Y, Chu Y, Yao K, Shi C, Deng X, Lin J. Response of sugar metabolism in the cotyledons and roots of Ricinus communis subjected to salt stress. Plant Biol (Stuttg) 2023; 25:62-71. [PMID: 36209370 DOI: 10.1111/plb.13475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Ricinus communis is an important oilseed crop worldwide and is also considered one of the best potential plants for salt-affected soil improvement in northeast China. However, little is known about photosynthesis and carbohydrate metabolism in this plant, nor the distribution of carbohydrates in cotyledons and roots under salinity stress. In the present study, seedling growth, gas exchange parameters (PN , E, gs and Ci ), carbohydrate (fructose, sucrose, glucose, soluble sugar and starch) metabolism and related enzymes and genes were measured in Ricinus plants. Under salt stress, PN of cotyledons decreased significantly (P < 0.05), resulting in weak photosynthetic capacity. Furthermore, salt stress increased sucrose and glucose content in cotyledons, but decreased soluble sugar and starch content. However, sucrose increased and starch decreased in roots. This may be correlated with the increasing sugar metabolism under salinity, including notable changes in sugar-related enzyme activities (SPS, SuSy, α-amylase and β-amylase) and gene expression of RcINV, RcSUS, RcAmY, RcBAM and RcGBE1. The results suggest that salinity reduces photosynthesis of cotyledons, alters carbohydrate allocation between cotyledons and roots and also promotes starch utilization in cotyledons and starch biosynthesis in roots, leading to a functional imbalance between cotyledons and roots. Together, these findings provide insights into the crucial role of sugar metabolism in improving salt-tolerance of Ricinus during the early seedling growth stage.
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Affiliation(s)
- Y Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - Y Chu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - K Yao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - C Shi
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - X Deng
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, China
| | - J Lin
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, China
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26
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Song Q, Zhang Y, Deng X, Zhao H, Zhang Y, Li J, Chen W, Hu H, Zhang Y. Amplification of oxidative stress with hyperthermia-enhanced chemodynamic process and MTH1 inhibition for tumor sequential nanocatalytic therapy. J Mater Chem B 2023; 11:3836-3850. [PMID: 36976579 DOI: 10.1039/d2tb02673b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
During chemodynamic therapy (CDT), tumor cells could adapt to hydroxyl radicals (·OH) invasion by activating DNA damage repairing mechanisms such as initiating mutt homologue 1 (MTH1) to mitigate oxidation-induced DNA...
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Affiliation(s)
- Qingcheng Song
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, P. R. China.
- Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, China.
| | - Yiran Zhang
- School of Medicine, Nankai University, Tianjin, 300071, China.
| | - Xiangtian Deng
- Trauma Medical Center, Department of Orthopedics surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Haiyue Zhao
- School of Medicine, Nankai University, Tianjin, 300071, China.
| | - Yueyao Zhang
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, P. R. China.
- Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, China.
| | - Junyong Li
- The People's Hospital, Shijiazhuang, 050051, Hebei, P. R. China
| | - Wei Chen
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, P. R. China.
- Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, China.
| | - Hongzhi Hu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Yingze Zhang
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, P. R. China.
- Orthopaedic Institution of Hebei Province, Shijiazhuang 050051, Hebei, China.
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Ashford MT, Zhu D, Bride J, McLean E, Aaronson A, Conti C, Cypress C, Griffin P, Ross R, Duncan T, Deng X, Ulbricht A, Fockler J, Camacho MR, Flenniken D, Truran D, Mackin SR, Hill C, Weiner MW, Byrd D, Turner Ii RW, Cham H, Rivera Mindt M, Nosheny RL. Understanding Online Registry Facilitators and Barriers Experienced by Black Brain Health Registry Participants: The Community Engaged Digital Alzheimer's Research (CEDAR) Study. J Prev Alzheimers Dis 2023; 10:551-561. [PMID: 37357297 PMCID: PMC10395260 DOI: 10.14283/jpad.2023.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
BACKGROUND Failure of Alzheimer's disease and related diseases (ADRD) research studies to include and engage Black participants is a major issue, which limits the impact and generalizability of research findings. Little is known about participation of Black adults in online ADRD-related research registries. OBJECTIVES As part of the Community Engaged Digital Alzheimer's Research (CEDAR) Study, this study aims to increase our understanding of facilitators and barriers of Black adults to participating in ADRD-related online registries, as well as to understand their preferences for communication channels. DESIGN, SETTING, PARTICIPANTS, MEASUREMENTS We invited all Black participants enrolled in the Brain Health Registry (BHR) to complete a cross-sectional online survey. The survey consisted of rating scales and open-text questions asking about their attitudes towards brain health research, reasons for joining and continuing to participate in BHR, difficulties with participating, and preferences for modes of contact and website usage. RESULTS Of all invited Black BHR participants (N=3,636), 198 (5.5%) completed the survey. The mean age was 58.4 (SD=11.3), mean years of education were 16.3 (SD=2.4), and 85.5% identified as female. Reported facilitators for joining and continuing to participate in BHR were personal interest (e.g., learning more about own brain health) and altruism (e.g., helping research). Among additional registry features which could encourage return, receiving feedback or scores about BHR tasks was rated the highest. Of those who found BHR participation difficult (21%), the most frequent reason was time burden. The most preferred way of receiving study information was via email. Participants reported that the websites that they used the most were YouTube and Facebook. DISCUSSION The results of our study can inform the development of culturally-responsive registry features and engagement efforts to improve inclusion and participation of Black adults in online ADRD research. Providing participants with feedback about their registry performance and reducing the number of registry tasks are among the recommended strategies.
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Affiliation(s)
- M T Ashford
- Miriam Ashford, 4150 Clement St, San Francisco, CA 94121, , Phone: (415) 750-6954, Fax number: (415) 750-9358
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Deng X, Shang X, Zhou L, Li X, Guo K, Xu M, Hou L, Hui X, Li S. Efficacy and Safety of Probiotics in Geriatric Patients with Constipation: Systematic Review and Meta-Analysis. J Nutr Health Aging 2023; 27:1140-1146. [PMID: 37997737 DOI: 10.1007/s12603-023-2028-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/01/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Probiotics may be an effective alternative to traditional drug therapy for constipation in the elderly. OBJECTIVE To assess the efficacy and safety of probiotics in managing constipation among the elderly. METHODS Eight databases were queried for randomized controlled trials (RCTs) investigating probiotics' efficacy in addressing constipation among the elderly until January 2023. The meta-analysis was conducted employing R software version 4.2.2. The Cochrane risk of bias tool was utilized to evaluate the risk of bias, and the GRADE approach was employed to assess the credibility of the evidence concerning the efficacy of probiotics in treating constipation in older individuals. RESULTS A total of six RCTs involving 444 patients were included. Two studies were rated as low risk of bias. The meta-analysis findings revealed that probiotics, when compared to a placebo, led to an increase in stool frequency (MD = 1.02,95% CI [0.21, 2.07], p<0.05, very low quality), the probiotic group exhibited a notable impact on ameliorating symptoms associated with constipation (OR = 11.28, 95%CI [7.21, 17.64], p < 0.05, very low quality), no significant disparities were observed in terms of efforts to evacuate, manual maneuvers, and the incidence of adverse events (p>0.05). CONCLUSION The available evidence indicates a degree of uncertainty, ranging from low-to-very low, suggesting the efficacy of probiotics in augmenting bowel frequency and ameliorating constipation-related symptoms among elderly patients with constipation. Nevertheless, given the quality of the studies included, it is advisable to conduct further well-designed investigations with substantial sample sizes to substantiate the findings of this study.
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Affiliation(s)
- X Deng
- Shuangping Li, Gansu Provincial Cancer Hospital, 2 Xiaoxihu East Street, Qilihe District, Lanzhou, China. Emails:
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Mindt MR, Ashford MT, Zhu D, Cham H, Aaronson A, Conti C, Deng X, Alaniz R, Sorce J, Cypress C, Griffin P, Flenniken D, Camacho M, Fockler J, Truran D, Mackin RS, Hill C, Weiner MW, Byrd D, Turner Ii RW, Nosheny RL. The Community Engaged Digital Alzheimer's Research (CEDAR) Study: A Digital Intervention to Increase Research Participation of Black American Participants in the Brain Health Registry. J Prev Alzheimers Dis 2023; 10:847-856. [PMID: 37874107 PMCID: PMC10598330 DOI: 10.14283/jpad.2023.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
BACKGROUND Although Black/African American older adults bear significant inequities in prevalence, incidence, and outcomes of Alzheimer's disease and related dementias, they are profoundly under-included in Alzheimer's Disease research. Community-Engaged Research (e.g., equitable community/science partnerships) is an evidence-based approach for improving engagement of underrepresented populations into Alzheimer's Disease research, but has lacked scalability to the national level. As internet use among older adults from underrepresented populations continues to grow, internet-based research shows promise as a feasible, valid approach to engagement and longitudinal assessment. The Community Engaged Digital Alzheimer's Research (CEDAR) study utilizes a community-engaged research approach to increase the engagement and research participation of Black/African American adults in the Brain Health Registry (BHR) and Alzheimer Disease clinical research. OBJECTIVES To describe the methods and evaluate the feasibility of the CEDAR culturally-informed digital platform within BHR. DESIGN All Black/African American participants in BHR were invited to enroll in CEDAR and to consider serving on a newly convened Community-Scientific Partnership Board to guide the study. The community board guided the development a culturally-informed cadre of engagement materials and strategies to increase research participation. Engagement strategies included incentives for study task completion, culturally-informed communications (e.g., landing page, emails and social media), resources about brain health, and video and written testimonials by CEDAR participants. SETTING BHR, an Internet-based registry and cohort. PARTICIPANTS BHR participants self-identifying as Black/African American were invited to enroll. All participants who signed an online informed consent document were enrolled. MEASUREMENTS We report the number of participants invited, enrolled, completed tasks, and volunteered to join the community board. We compared the demographics, cognitive profile, and baseline BHR task completion rates between CEDAR participants and all those invited to join the study. RESULTS Of 3738 invited, 349 (9.34%) enrolled in CEDAR. 134 (37% of CEDAR participants) volunteered to join the community board, of which 19 were selected for the community board. Compared to those invited, the CEDAR cohort had a higher percentage of female participants (84.5%) and a lower percentage of participants who identify as belonging to more than one ethnocultural group (21.8%). Compared to those did not enroll in CEDAR, those enrolled in CEDAR had a higher percentage of participants completing all BHR tasks (22%) and a higher percentage of participants completing at least one cognitive test (76%). Those enrolled in CEDAR also had a higher percentage of participants having an enrolled study partner (18%). CONCLUSIONS A culturally-informed Community-Engaged Research approach, including a remotely-convened community board, to engagement of Black/African American participants in an online research registry is feasible. This approach can be adapted for use in various clinical studies and other settings. Future studies will evaluate the effectiveness of the engagement strategies.
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Affiliation(s)
- M R Mindt
- Rachel Nosheny, 4150 Clement Street, 114M, San Francisco, CA. 94121, USA, Telephone: 415-221-4810, Email address: Fax number: 415-221-4810
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30
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Deng X, Zhao R, Song Q, Zhang Y, Zhao H, Hu H, Zhang Z, Liu W, Lin W, Wang G. Synthesis of dual-stimuli responsive metal organic framework-coated iridium oxide nanocomposite functionalized with tumor targeting albumin-folate for synergistic photodynamic/photothermal cancer therapy. Drug Deliv 2022; 29:3142-3154. [PMID: 36164704 PMCID: PMC9542428 DOI: 10.1080/10717544.2022.2127973] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The synergistic effects of photothermal therapy (PTT) and photodynamic therapy (PDT) has attracted considerable attention in the field of cancer therapy because of its excellent anti-tumor effect. This work provides a novel pH/NIR responsive therapeutic nanoplatform, IrO2@ZIF-8/BSA-FA (Ce6), producing a synergistic effect of PTT-PDT in the treatment of osteosarcoma. Iridium dioxide nanoparticles (IrO2 NPs) with exceptional catalase-like activity and PTT effects were synthesized by a hydrolysis method and decorated with zeolitic imidazolate framework-8 (ZIF-8) shell layer to promote the physical absorption of Chlorin e6 (Ce6), and further functionalized with bovine serum albumin-folate acid (BSA-FA) for targeting tumor cells. The IrO2@ZIF-8/BSA-FA nanocomposite indicated an outstanding photothermal heating conversion efficiency of 62.1% upon laser irradiation. In addition, the Ce6 loading endows nanoplatform with the capability to induce cell apoptosis under 660 nm near-infrared (NIR) laser irradiation through a reactive oxygen species (ROS)-mediated mechanism. It was further testified that IrO2@ZIF-8/BSA-FA can function as a catalase and convert the endogenous hydrogen peroxide (H2O2) into oxygen (O2) to improve the local oxygen pressure under the acidic tumor microenvironment (TME), which could subsequently amplified PDT-mediated ROS cell-killing performance via relieving hypoxia microenvironment of tumor. Both in vitro and in vivo experimental results indicated that the nanomaterials were good biocompatibility, and could remarkably achieve tumor-specific and enhanced combination therapy outcomes as compared with the corresponding PTT or PDT monotherapy. Taken together, this work holds great potential to design an intelligent multifunctional therapeutic nanoplatform for cancer therapy.
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Affiliation(s)
- Xiangtian Deng
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, China.,Orthopedics Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Renliang Zhao
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, China.,Orthopedics Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Qingcheng Song
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijazhuang, China
| | - Yiran Zhang
- School of Medicine, Nankai University, Tianjin, China
| | - Haiyue Zhao
- School of Medicine, Nankai University, Tianjin, China
| | - Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhen Zhang
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, China.,Orthopedics Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Weijian Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Lin
- Department of Gynecology, West China Second Hospital, Sichuan University, Chengdu, China
| | - Guanglin Wang
- Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, China.,Orthopedics Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
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Wu XH, Tian HC, Luo JW, Tie L, Zhang LP, Deng X, Liu Y. [Spatio-temporal distribution characteristics of soil-transmitted nematodiasis in Sichuan Province from 2016 to 2021]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:484-492. [PMID: 36464262 DOI: 10.16250/j.32.1374.2022141] [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] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE To investigate the trends in the prevalence of soil-transmitted nematode infections and the spatio-temporal distribution characteristics of soil-transmitted nematodiasis in Sichuan Province from 2016 to 2021, so as to provide the evidence for formulating the soil-transmitted nematodiasis elimination strategy in Sichuan Province. METHODS The soil-transmitted nematodiasis surveillance data in Sichuan Province from 2016 to 2021 were collected, and the epidemic trend of soil-transmitted nematode infections was identified. The distribution maps of soil-transmitted nematode infections in Sichuan Province were plotted to identify their spatial distribution characteristics. In addition, the spatial clusters of soil-transmitted nematode infections were detected using globa and local spatial autocorrelation analyses. RESULTS The prevalence of soil-transmitted nematode infections appeared a decline with time in Sichuan Province from 2016 to 2021 (χ2= 400.24, P < 0.01). Global spatial autocorrelation analysis identified positive spatial autocorrelations in the prevalence of soil-transmitted nematode infections (Moran's I = 0.322, Z = 16.293, P < 0.01), hookworm infections (Moran's I = 0.425, Z = 21.290, P < 0.01), Ascaris lumbricoides infections (Moran's I = 0.102, Z = 5.782, P < 0.01) and Trichuris trichiura infections (Moran's I = 0.084, Z = 6.873, P < 0.01). Local spatial autocorrelation analysis showed that the high-high clusters of soil-transmitted nematode infections were mainly located in 37 counties (cities, districts) of Sichuan Province, and the high-high clusters of hookworm, A. lumbricoides and T. trichiura infections were mainly identified in 39 counties (cities, districts) in mountainous areas around Sichuan Basin and hilly areas, 9 counties (cities, districts) in mountainous areas in southwestern Sichuan Province, and 8 counties (cities, districts) in mountainous areas in southwestern Sichuan Province, respectively. CONCLUSIONS The prevalence of soil-transmitted nematode infections appeared a tendency towards a decline in Sichuan Province from 2016 to 2021, which showed spatial clusters. The management of soil-transmitted nematodiasis requires to be reinforced in high-risk areas of Sichuan Province with adaptations to local epidemiological features.
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Affiliation(s)
- X H Wu
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
| | - H C Tian
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
| | - J W Luo
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
| | - L Tie
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
| | - L P Zhang
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
| | - X Deng
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
| | - Y Liu
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, Sichuan 610041, China
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Zhang Y, Hu H, Deng X, Song Q, Xing X, Liu W, Zhang Y. Cascade-Enhanced Catalytic Nanocomposite with Glutathione Depletion and Respiration Inhibition for Effective Starving-Chemodynamic Therapy Against Hypoxic Tumor. Int J Nanomedicine 2022; 17:5491-5510. [DOI: 10.2147/ijn.s382750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 11/05/2022] [Indexed: 11/22/2022] Open
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Zhu H, Xie D, Yang Y, Wang Y, Huang R, Chen X, Wang B, Peng Y, Wang J, Xiao D, Wu D, Qian C, Deng X. The Immune Response and Intestinal Injury after X-Ray FLASH Irradiation in Murine Breast Cancer Transplanted Models. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Deng X, Cai W, Lin F, Jia L, Dai Z, Zhang W, Li J, Lei R, Sun H, Jiang P, Wang J. A Deep Learning-Based Method with Prior Information for Auto-Delineation of Clinical Target Volume in Postmastectomy Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.884] [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]
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Li T, Xie J, Shen C, Cheng D, Shi Y, Wu Z, Deng X, Chen H, Shen B, Peng C, Li H, Zhan Q, Zhu Z. Retraction Note: Upregulation of long noncoding RNA ZEB1-AS1 promotes tumor metastasis and predicts poor prognosis in hepatocellular carcinoma. Oncogene 2022; 41:4839. [PMID: 36180782 DOI: 10.1038/s41388-022-02480-x] [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)
- T Li
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - J Xie
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - C Shen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - D Cheng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Y Shi
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Z Wu
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - X Deng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - H Chen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - B Shen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - C Peng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - H Li
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Q Zhan
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Z Zhu
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China.
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Geng Y, Song Z, Zhang X, Deng X, Wang Y, Zhang Z. POS0315 DIAGNOSTIC PERFORMANCE OF CASPAR CRITERIA FOR PSORIATIC ARTHRITIS WITH OR WITHOUT INTEGRATION OF ULTRASOUND. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3605] [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: 11/03/2022]
Abstract
BackgroundAlthough the CASPAR criteria in the diagnosis of psoriatic arthritis (PsA) have been validated, CASPAR based on physical examination (PE) is not “gold standard”. The ultrasound (US) could improve the diagnostic accuracy as compared to clinical examination alone.ObjectivesTo evaluate the diagnostic performance of CASPAR criteria for psoriatic arthritis (PsA) with or without integration of ultrasound (US).MethodsThe patients with hint of PsA were enrolled. Tender and swollen joint counts, presents of enthesitis and dactylitis were collected by physical examination (PE). US was performed to evaluate peripheral joints, entheses and tendons. The additional value of US to CASPAR criteria were analysed.Results326 consecutive patients were enrolled, with 164 PsA and 162 non-PsA. Significantly higher frequencies of tenosynovitis and enthesitis on US and new bone formation on X-ray were found in PsA than non-PsA patients (56.7% vs. 13.0%; 62.2% vs. 14.2%; 62.2% vs. 8.0%, p<0.01 for all). Logistic regression analysis showed that dactylitis (OR=12.0, p<0.01), family history of PsO/PsA (OR=3.1, p<0.05), nail involvement (OR=3.5, p=0.01), new bone formation (OR=14.8, p<0.01) and tenosynovitis on US (OR=21.3, p<0.01), enthesitis on US (OR=21.7, p<0.01) were independent risk factors for PsA. Adding US tenosynovitis and/or enthesitis to CASPAR criteria showed better performance by improving the specificity (91.4% vs. 67.9%) and meanwhile keeping sensitivity (92.1% vs. 96.3%). When replacing hand X-ray by US in CASPAR criteria, the sensitivity and specificity were comparable to CASPAR criteria adding with US. The diagnostic accuracy was 82.2% for CASPAR criteria based on PE, 91.7% for CASPAR integrated with US, and 91.4% for CASPAR with US to replace X-ray.ConclusionCASPAR criteria based on US improve the diagnosis utility of PsA than CASPAR criteria based on PE. US assessment is valuable in the diagnosis of PsA.References[1]Fiorenza A, Bonitta G, Gerratana E, et al. Assessment of enthesis in patients with psoriatic arthritis and fibromyalgia using clinical examination and ultrasound. Clinical and experimental rheumatology 2020;38 Suppl 123:31-9.[2]Zabotti A, Bandinelli F, Batticciotto A, et al. Musculoskeletal ultrasonography for psoriatic arthritis and psoriasis patients: a systematic literature review. Rheumatology (Oxford) 2017;56:1518-32.Figure 1.ROC curves for adding US or substituting X-ray by US in CASPAR criteria. Receiver operating characteristic (ROC) curve illustrates the diagnosis performance of CASPAR criteria adding US or substituting X-ray by US in CASPAR criteria and CASPAR criteria based on PE alone. The area under the curve of the ROC curve (AUC) was 0.929 (95%CI 0.897, 0.961) (p<0.01) for adding US to CASPAR criteria. AUC was 0.908 (95%CI 0.876, 0.940) (p<0.01) for CASPAR criteria based on PE. And AUC was 0.916 (95%CI 0.880, 0.951) (p<0.01) for substituting X-ray by US in CASPAR criteria. CASPAR: ClASsification criteria for Psoriatic ARthritis; PE: physical examination; US: ultrasound.Disclosure of InterestsNone declared
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Deng X, He HQ, Zhou Y, Yan R, Tang XW, Zhu Y, Xu XP, Lyu HK. [Advances in research of interchangeable immunization with live attenuated Japanese encephalitis vaccines and inactivated vaccines]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:554-560. [PMID: 35644967 DOI: 10.3760/cma.j.cn112150-20211110-01044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Japanese encephalitis (JE) virus is the leading cause of vaccine-preventable encephalitis in Asia and the Western Pacific, which mainly invades central nervous system. Vaccination is the most important strategy to prevent JE. Currently, both live attenuated Japanese encephalitis vaccines (JE-L) and inactivated vaccines (JE-I) are in use. Due to the supply of vaccines and the personal choice of recipients, there will be a demand for interchangeable immunization of these two vaccines. However, relevant research is limited. By reviewing domestic and foreign research evidence, this article summarizes the current situation of the interchangeable use of JE-L and JE-I, and makes recommendations when the interchangeable immunization is in urgent need, so as to provide reference for practical vaccination and policymaking in China.
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Affiliation(s)
- X Deng
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - H Q He
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y Zhou
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - R Yan
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X W Tang
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y Zhu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X P Xu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - H K Lyu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
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Li L, Li Y, He Y, Deng X, Zhou P, Li J, Jiang H, Li Z, Liu J. Single-stage arthroscopic-assisted treatment of anteromedial tibial plateau fracture with posterolateral corner injury: a retrospective study. BMC Musculoskelet Disord 2022; 23:420. [PMID: 35513797 PMCID: PMC9069741 DOI: 10.1186/s12891-022-05387-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/28/2022] [Indexed: 02/08/2023] Open
Abstract
Background Anteromedial tibial plateau fracture with posterolateral corner (PLC) injury is a relatively rare combined injury in the clinic. In addition, there is no unified treatment scheme for this combined injury. The purpose of this study was to evaluate the clinical and imaging results of single-stage arthroscopic-assisted surgery for anteromedial tibial plateau fracture with PLC injury, and to explore the advantages of this surgical technique. Method In this retrospective study, a total of 9 patients (7 males and 2 females) were included, aged 24–64 years (average 40.7 years), treated in our Department of Orthopedics from January 2016 to January 2021. In the preoperative evaluations, there were 9 cases of anteromedial tibial plateau fractures with PLC injuries, 6 cases of concomitant PCL injuries, 6 cases of concomitant medial or lateral meniscus injuries, and 2 cases of concomitant fibular head avulsion fractures. All patients underwent single-stage arthroscopic-assisted surgery. Results All patients were followed up, and the average follow-up period was 15.2 months (range 12–18 months). The average operation time was 135.6 min (range 100–160 min), and the average surgical blood loss was 87.2 ml (range 60–110 ml). The anatomical reduction was achieved in 9 cases, and the anatomical reduction rate was 100%. The average fracture healing time was 13.1 weeks (range 12–16 weeks). At the last follow-up, the average VAS score was 1 (range 0–2); the average Lysholm function score was 90.7 (range 86–95), and the average IKDC score was 91.4 (range 88–95); the average knee extension angle of all patients was 0° and the average knee flexion angle was 128.3° (average 120–135°); The posterior drawer test, the Lachman test and the dial test were negative for all cases. None of the patients had operation-related complications. Conclusion Single-stage arthroscopy-assisted surgery in the treatment of anteromedial tibial plateau fracture with PLC injury can achieve good clinical outcomes, restore the stability of the knee joint, and reduce the risk of severe lower extremity dysfunction.
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Affiliation(s)
- Lingzhi Li
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, Sichuan, 646000, People's Republic of China
| | - Yuan Li
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, Sichuan, 646000, People's Republic of China
| | - Yanwei He
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, Sichuan, 646000, People's Republic of China
| | - Xiangtian Deng
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Peng Zhou
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, Sichuan, 646000, People's Republic of China
| | - Jun Li
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, Sichuan, 646000, People's Republic of China
| | - Hao Jiang
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, Sichuan, 646000, People's Republic of China
| | - Zhong Li
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, Sichuan, 646000, People's Republic of China.
| | - Juncai Liu
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou, Sichuan, 646000, People's Republic of China.
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Chen S, Peng Y, Liu Y, Zhao C, Deng X, Qin A, Yan D, Stevens C, Deraniyagala R, Ding X. PO-1503 MRI-based Synthetic CT images for IMPT Treatment Planning of Nasopharyngeal Carcinoma Patients. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03467-3] [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]
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Jiang P, Qu A, Jiang W, Deng X, Wang J. PO-1340 Phase Ⅰ Trail of Concurrent Nab-paclitaxel and Cisplatin with VMAT for LACC. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03304-7] [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]
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Zhou Y, Tao MY, Lu ZJ, Yan R, Deng X, Tang XW, Zhu Y, He HQ, Yao YP. [Epidemiological characteristics and spatiotemporal clustering of hepatitis A in Zhejiang Province from 2010 to 2019]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:459-463. [PMID: 35488543 DOI: 10.3760/cma.j.cn112150-20210406-00330] [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: 06/14/2023]
Abstract
Objective: To analyze the epidemiological characteristics and spatiotemporal clustering of hepatitis A in Zhejiang Province from 2010 to 2019. Methods: The data of hepatitis A incidence in Zhejiang Province from 2010 to 2019 were collected from the infectious disease surveillance system of China Information System for Disease Control and Prevention. ArcGIS 10.7 software was used for spatial autocorrelation analysis. SaTScan 9.6 software was used for spatiotemporal scanning analysis. SPSS 25.0 software was used for additional analysis. Results: Zhejiang Province has reported 5 465 cases of hepatitis A in 2010-2019 years, with an average annual incidence rate of 1.00/100 000, and periodicity and seasonality are not obvious. The incidence of male was higher than that of female (P=0.023), and the highest incidence rate was 50-59 years old. Spatial autocorrelation analysis showed that there was a positive spatial correlation between the incidence of hepatitis A in Zhejiang Province from 2010 to 2017, with the weakest correlation in 2010 (Moran's I =0.103, Z=1.769, P=0.049), and the strongest correlation in 2016 (Moran's I=0.328, Z=4.979, P=0.001). Spatiotemporal scanning analysis showed that there was spatial aggregation of hepatitis A in Zhejiang Province from 2010 to 2019, with a total of three aggregation areas identified. Among them, the mostly aggregation area was concentrated in Xiangshan county of Ningbo city, which covered 10 counties (cities and districts), including Ninghai county and Yinzhou district, and appeared from January 1 to June 30, 2012. Conclusion: The incidence level of hepatitis A in Zhejiang Province shows a stable fluctuation trend from 2010 to 2019, and the seasonal regularity is not obvious. The population group aged 50-59 years old is the key population. There is spatial aggregation in the epidemic situation of hepatitis A. Targeted prevention and control measures of hepatitis A should be done based on the law of spatiotemporal aggregation and local incidence.
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Affiliation(s)
- Y Zhou
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - M Y Tao
- School of Medical, Ningbo University, Ningbo 315000, China
| | - Z J Lu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - R Yan
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X Deng
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X W Tang
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y Zhu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - H Q He
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y P Yao
- Department of Science Research and Information Management, Zhejiang Provincial Center for Disease control and Prevention, Hangzhou 310051, China
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Zhu J, Deng X, Hu H, Cheng X, Tan Z, Zhang Y. Comparison of the Effect of Rhombic and Inverted Triangle Configurations of Cannulated Screws on Internal Fixation of Nondisplaced Femoral Neck Fractures in Elderly Patients. Orthop Surg 2022; 14:720-729. [PMID: 35302715 PMCID: PMC9002070 DOI: 10.1111/os.13223] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 01/10/2022] [Accepted: 01/19/2022] [Indexed: 11/29/2022] Open
Abstract
Objective To investigate whether four‐screw fixation in rhombic configuration could improve the clinical outcomes and decrease the complication rate compared with three‐screw fixation in inverted triangle configuration in elderly patients with nondisplaced femoral neck fractures. Method From January 2018 to January 2019, 91 elderly patients with nondisplaced femoral neck fractures who were treated with a cannulated screw system were reviewed retrospectively. The inverted triangle configuration was applied in 51 patients and rhombic configuration in 40 patients. The demographic and perioperative information of the patients were extracted from medical records and surgical records. Variables including incision size, surgical blood loss, surgical time, fluoroscopy time, hospital stays, fracture union time, postoperative visual analogue scale (VAS) scores, and complications were compared between the two groups. Also, Harris hip score at the final follow‐up was used to evaluate the functional outcomes. Results All patients were followed up from 24 to 36 months, with an average of 29.75 months. The average age of patients was 72.37 ± 7.16 years. No significant differences were found between the two groups with regard to patients' age, gender, affected side, Garden classification, Pauwels classification and comminution of posterior wall (P > 0.05). We found shorter incision size (P < 0.001), less blood loss (P = 0.020), less surgical time (P = 0.026), and shorter fluoroscopy time (P < 0.001) in inverted triangle configuration group. However, shorter hospital stays (P = 0.001) and fracture union time (P = 0.002) were found in the rhombic configuration group. The VAS scores were lower in the rhombic configuration group at the first (P < 0.001) and third months (P = 0.010), but no significant difference was found at the sixth month (P = 0.075). Meanwhile, the total complication rate was relatively lower in the rhombic configuration group compared to the inverted triangle configuration group (P = 0.041). Harris hip score presented no significant difference between the two groups at final follow‐up (P = 0.078). No wound infection or cortical perforation occurred in either group. Conclusion Four‐screw fixation in rhombic configuration was superior to three‐screw fixation in inverted triangle configuration in the treatment of nondisplaced femoral neck fractures in elderly patients in terms of less early postsurgical pain, shorter fracture union time, and lower complication rate.
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Affiliation(s)
- Jian Zhu
- School of Medicine, Nankai University, Tianjin, China.,Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Taiyuan, China.,Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, Shijiazhuang, China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China
| | - Xiangtian Deng
- School of Medicine, Nankai University, Tianjin, China.,Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, Shijiazhuang, China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China
| | - Hongzhi Hu
- Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, Shijiazhuang, China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China.,Department of Orthopedics, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Xiaodong Cheng
- Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, Shijiazhuang, China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China.,NHC Key Laboratory of Intelligent Orthopeadic Equipment, (The Third Hospital of Hebei Medical University), Shijiazhuang, China
| | - Zhanchao Tan
- Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, Shijiazhuang, China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China.,NHC Key Laboratory of Intelligent Orthopeadic Equipment, (The Third Hospital of Hebei Medical University), Shijiazhuang, China
| | - Yingze Zhang
- School of Medicine, Nankai University, Tianjin, China.,Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, Shijiazhuang, China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China
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Zhu J, Hu H, Deng X, Cheng X, Li Y, Chen W, Zhang Y. Risk factors analysis and nomogram construction for blood transfusion in elderly patients with femoral neck fractures undergoing hemiarthroplasty. Int Orthop 2022; 46:1637-1645. [PMID: 35166874 DOI: 10.1007/s00264-022-05347-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/10/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Elderly patients with femoral neck fractures (FNFs) undergoing hemiarthroplasty usually have poor physical condition. The main aim of this study was to identify risk factors for blood transfusion in these patients and construct a nomogram to intuitively predict the requirement of transfusion. The secondary purpose was to examine the relationship between blood transfusion and complications within 30 days post-operatively. Our hypothesis was that chronic kidney disease (CKD) and hypoalbuminemia may increase the requirement of transfusion. METHODS Data of 414 elderly patients undergoing hemiarthroplasty for FNFs were retrospectively collected. Univariate and multiple regression analysis were performed to identify independent risk factors for blood transfusion, which were used to construct a nomogram subsequently. The discrimination and calibration of the nomogram model were assessed with concordance index (C-index), the area under receiver operating characteristic curve (AUC), and calibration curve. Furthermore, the complications of blood transfusion within 30 days post-operatively were also analyzed. RESULTS Out of 414 patients, 127 (30.7%) received a blood transfusion. Independent risk factors for blood transfusion included CKD, hypoalbuminemia, pre-operative anaemia, general anaesthesia, higher American Society of Anesthesiologists score, more intraoperative blood loss, and longer surgical time. Increased hidden blood loss, deep vein thrombosis, superficial wound infection, and prolonged hospital stays were more common in transfused patients. The C-index of the nomogram model was 0.848 (95% CI = 0.811-0.885), and the AUC value was 0.859. The calibration curve showed a good consistency between the actual transfusion and the predicted probability. DISCUSSION We observed a transfusion rate of 30.7% in elderly FNF patients undergoing hemiarthroplasty. CKD and hypoalbuminemia were firstly identified as independent risk for blood transfusion. In addition, blood transfusion can increase the occurrence of early post-operative complications. CONCLUSION Targeted pre-operative intervention, such as optimizing CKD and correcting hypoalbuminemia is essential and highly regarded.
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Affiliation(s)
- Jian Zhu
- Shanxi Bethune Hospital, Shanxi Academy of Medical Science, No. 99, Longcheng Street, Taiyuan, 030032, Shanxi Province, China.,School of Medicine, Nankai University, Tianjin, 300071, People's Republic of China.,Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopeadic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Xiangtian Deng
- School of Medicine, Nankai University, Tianjin, 300071, People's Republic of China.,Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopeadic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Xiaodong Cheng
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopeadic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Yonglong Li
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopeadic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Wei Chen
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, People's Republic of China.,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopeadic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Yingze Zhang
- School of Medicine, Nankai University, Tianjin, 300071, People's Republic of China. .,Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, People's Republic of China. .,Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, 050051, Hebei, People's Republic of China. .,NHC Key Laboratory of Intelligent Orthopeadic Equipment, Shijiazhuang, 050051, Hebei, People's Republic of China.
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Deng X, He HQ, Zhou Y, Yan R, Tang XW, Zhu Y, Xu XP, Lyu HK. [Evaluating the real-world vaccine effectiveness using a regression discontinuity design]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:292-296. [PMID: 35184499 DOI: 10.3760/cma.j.cn112338-20210706-00524] [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: 06/14/2023]
Abstract
Estimating the actual real-world effectiveness of the vaccine is an essential part of the post-marketing evaluation. This regression discontinuity design (RDD) using observational data is designed to quantify the effect of an intervention when eligibility for the intervention is based on a defined cutoff as age, making it suited to estimate vaccine effects. This approach can avoid the high cost and ethical issues; overcome difficulties in the organization and practice process in randomized controlled trials, which leads to a higher level of causal inference evidence and more realistic results. Here, we describe key features of RDD in general, and then specific scenarios, with examples, to illustrate that RDD are an essential tool for advancing our understanding of vaccine effects.
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Affiliation(s)
- X Deng
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - H Q He
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - Y Zhou
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - R Yan
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - X W Tang
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - Y Zhu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - X P Xu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - H K Lyu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
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Abstract
Oral potentially malignant disorders (OPMDs) are a heterogeneous group of oral lesions with a variable risk of malignant transformation to oral squamous cell carcinoma. The current OPMDs malignant transformation screening depends on conventional oral examination (COE) and is confirmed by biopsy and histologic examination. However, early malignant lesions with subtle mucosal changes are easily unnoticed by COE based on visual inspection and palpation. Optical techniques have been used to determine the biological structure, composition, and function of cells and tissues noninvasively by analyzing the changes in their optical properties. The oral epithelium and stroma undergo persistent structural, functional, and biochemical alterations during malignant transformation, leading to variations in optical tissue properties; optical techniques are thus powerful tools for detecting OPMDs malignant transformation. The optical imaging methods already used to detect OPMDs malignant transformation in vivo include autofluorescence imaging, narrowband imaging, confocal reflectance microscopy, and optical coherence tomography. They exhibit advantages over COE in detecting biochemical or morphologic changes at the molecular or cellular level in vivo; however, limitations also exist. This article comprehensively reviews the various real-time in vivo optical imaging methods used in the adjunctive diagnosis of OPMDs malignant transformation. We focus on the principles of these techniques, review their clinical application, and compare and summarize their advantages and disadvantages. Finally, we conclude with a discussion of current challenges and future directions of this field.
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Affiliation(s)
- Y Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - X Deng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y Sun
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - X Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Q Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - L Jiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Deng X, Li L, Zhou P, Deng F, Li Y, He Y, Chen G, Li Z, Liu J. Medial patellofemoral ligament reconstruction combined with biplanar supracondylar femoral derotation osteotomy in recurrent patellar dislocation with increased femoral internal torsion and genu valgum: a retrospective pilot study. BMC Musculoskelet Disord 2021; 22:990. [PMID: 34836529 PMCID: PMC8626929 DOI: 10.1186/s12891-021-04816-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 10/22/2021] [Indexed: 11/17/2022] Open
Abstract
Background The purpose of this study was to evaluate the clinical and radiographic outcomes after medial patellofemoral ligament (MPFL) reconstruction combined with supracondylar biplanar femoral derotation osteotomy (FDO) in recurrent patellar dislocation (RPD) with increased femoral anteversion angle (FAA) and genu valgum. Methods Between January 2017 to December 2020, a total of 13 consecutive patients (13 knees, 4 males and 9 females, mean age 18.7 (range, 15–29 years) with RPD with increased FAA (FAA > 25°) and genu valgum (mechanical axis deformity of ≥5°) who underwent supracondylar biplanar FDO using a Tomofix-locking plate combined with MPFL reconstruction in our institution were included. Preoperative full-leg standing radiographs, lateral views, and hip-knee-ankle computed tomography (CT) scans were used to evaluate the mechanical lateral distal femoral angle (mLDFA), anatomical femorotibial angle (aFTA), mechanical axis, patellar height, tibial tubercle-trochlear groove (TT-TG) distance, and torsional angle of the tibial and femoral in the axial plane. Patient reported outcomes were evaluated using the International Knee Documentation Committee (IKDC) score, Kujala score, Lysholm score, visual analog scale (VAS), and Tegner score preoperatively and postoperatively. Postoperative CT scans were used to evaluate the changes of FAA and TT-TG, and full-leg standing radiographs was used to evaluate the changes of mLDFA, aFTA, and mechanical axis. Results A total of 13 patients (13 knees) were included with an average follow-up period of 26.7 months (range 24–33). No cases developed wound infection, soft tissue irritation, and recurrent patellar dislocation during the follow-up period after surgery. Bone healing at the osteotomy site was achieved in all cases, and all patients regained full extension and flexion. Clinical outcomes (VAS, Kujala, IKDC, Lysholom, and Tegner scores) improved significantly at the final follow-up after surgery (p < 0.05). The mean mLDFA, aFTA, mechanical axis, and TT-TG distance showed statistically significant improvement following the combined surgery (p < 0.05), while the CDI did not change significantly after surgery (p>0.05). Conclusion MPFL reconstruction combined with supracondylar biplanar FDO showed satisfactory clinical outcomes and radiographic results in the short-term follow-up period.
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Affiliation(s)
- Xiangtian Deng
- School of Medicine, Nankai University, Tianjin, 300071, People's Republic of China.,Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China
| | - Lingzhi Li
- Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China
| | - Peng Zhou
- Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China
| | - Fuyuan Deng
- Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China
| | - Yuan Li
- Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China
| | - Yanwei He
- Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China
| | - Ge Chen
- Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China
| | - Zhong Li
- Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China. .,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.
| | - Juncai Liu
- Department of Orthopaedic Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China. .,Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Lu Zhou, 646000, Sichuan Province, People's Republic of China.
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Hu H, Deng X, Song Q, Yang W, Zhang Y, Liu W, Wang S, Liang Z, Xing X, Zhu J, Zhang J, Shao Z, Wang B, Zhang Y. Mitochondria-targeted accumulation of oxygen-irrelevant free radicals for enhanced synergistic low-temperature photothermal and thermodynamic therapy. J Nanobiotechnology 2021; 19:390. [PMID: 34823543 PMCID: PMC8620660 DOI: 10.1186/s12951-021-01142-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/13/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Although lower temperature (< 45 °C) photothermal therapy (LPTT) have attracted enormous attention in cancer therapy, the therapeutic effect is still unsatisfying when applying LPTT alone. Therefore, combining with other therapies is urgently needed to improve the therapeutic effect of LPTT. Recently reported oxygen-irrelevant free radicals based thermodynamic therapy (TDT) exhibit promising potential for hypoxic tumor treatment. However, overexpression of glutathione (GSH) in cancer cells would potently scavenge the free radicals before their arrival to the specific site and dramatically diminish the therapeutic efficacy. METHODS AND RESULTS In this work, a core-shell nanoplatform with an appropriate size composed of arginine-glycine-aspartate (RGD) functioned polydopamine (PDA) as a shell and a triphenylphosphonium (TPP) modified hollow mesoporous manganese dioxide (H-mMnO2) as a core was designed and fabricated for the first time. This nanostructure endows a size-controllable hollow cavity mMnO2 and thickness-tunable PDA layers, which effectively prevented the pre-matured release of encapsulated azo initiator 2,2'-azobis[2-(2-imidazolin-2-yl) propane] dihydrochloride (AIBI) and revealed pH/NIR dual-responsive release performance. With the mitochondria-targeting ability of TPP, the smart nanocomposites (AIBI@H-mMnO2-TPP@PDA-RGD, AHTPR) could efficiently induce mitochondrial associated apoptosis in cancer cells at relatively low temperatures (< 45 °C) via selectively releasing oxygen-irrelevant free radicals in mitochondria and facilitating the depletion of intracellular GSH, exhibiting the advantages of mitochondria-targeted LPTT/TDT. More importantly, remarkable inhibition of tumor growth was observed in a subcutaneous xenograft model of osteosarcoma (OS) with negligible side effects. CONCLUSIONS The synergistic therapy efficacy was confirmed by effectively inducing cancer cell death in vitro and completely eradicating the tumors in vivo. Additionally, the excellent biosafety and biocompatibility of the nanoplatforms were confirmed both in vitro and in vivo. Taken together, the current study provides a novel paradigm toward oxygen-independent free-radical-based cancer therapy, especially for the treatment of hypoxic solid tumors.
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Affiliation(s)
- Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051 China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei China
| | - Xiangtian Deng
- School of Medicine, Nankai University, Tianjin, 300071 China
| | - Qingcheng Song
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051 China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei China
| | - Wenbo Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Yiran Zhang
- School of Medicine, Nankai University, Tianjin, 300071 China
| | - Weijian Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051 China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei China
| | - Shangyu Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Zihui Liang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan, 430062 China
| | - Xin Xing
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051 China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei China
| | - Jian Zhu
- School of Medicine, Nankai University, Tianjin, 300071 China
| | - Junzhe Zhang
- School of Medicine, Nankai University, Tianjin, 300071 China
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051 China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei China
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Baichuan Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Yingze Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051 China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei China
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Deng X, Song Q, Zhang Y, Liu W, Hu H, Zhang Y. Tumour microenvironment-responsive nanoplatform based on biodegradable liposome-coated hollow MnO 2 for synergistically enhanced chemotherapy and photodynamic therapy. J Drug Target 2021; 30:334-347. [PMID: 34709119 DOI: 10.1080/1061186x.2021.1999961] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND Existing therapeutic efficacy of chemotherapy and photodynamic therapy (PDT) is always affected by some resistance factors from tumour environment (TME), such as hypoxia and the antioxidant defense system. PURPOSE This study aims at developing a cascaded intelligent multifunctional nanoplatforms to modulate the TME resistance for synergistically enhanced chemo- and photodynamic therapies. METHODS In this study, we synthesised hollow manganese dioxide nanoparticles (HMDNs) loaded with the hydrophilic chemotherapeutic drug (acriflavine, ACF) and the hydrophobic photosensitizer (chlorine6, Ce6), which was further encapsulated by pH-sensitive liposome to form core-shell nanocomposite, with surface modified with arginine-glycine-aspartic acid (RGD) peptide to achieve tumour targeting. RESULTS After uptake by tumour cells, the liposome shell was rapidly degraded by the low pH, and the inner core could be released from the liposome. Then, the released HMDNs/ACF/Ce6 would be dissociated by low pH and high levels of intracellular GSH within TME to release encapsulated drugs, thereby resulting in synergistic effects of chemotherapy and PDT. Meanwhile, the released ACF could bind with HIF-1a and then inhibit the expression levels of HIF-1's downstream signalling molecules P-gp and VEGF, which could further strengthen the antitumor effects. As a result, HMDNs/ACF/Ce6@Lipo-RGD NPs with laser irradiation exhibited superior anti-tumour therapeutic efficiency.
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Affiliation(s)
- Xiangtian Deng
- School of Medicine, Nankai University, Tianjin, China.,Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijazhuang, China
| | - Qingcheng Song
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijazhuang, China
| | - Yiran Zhang
- School of Medicine, Nankai University, Tianjin, China.,Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijazhuang, China
| | - Weijian Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yingze Zhang
- School of Medicine, Nankai University, Tianjin, China.,Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijazhuang, China
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Peng Y, Wu S, Liu Y, Chen M, Miao J, Zhao C, Chen S, Qi Z, Deng X. Synthetic CT Generation From Multi-Sequence MR Images for Head and Neck MRI-Only Radiotherapy via Cycle-Consistent Generative Adversarial Network. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1445] [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: 10/20/2022]
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Deng X, Hu H, Song Q, Zhang Y, Liu W, Zhu L, Zhang Y. The influence of the steep medial posterior tibial slope on medial meniscus tears in adolescent patients: a retrospective case-control study. BMC Musculoskelet Disord 2021; 22:901. [PMID: 34696769 PMCID: PMC8546944 DOI: 10.1186/s12891-021-04766-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/07/2021] [Indexed: 11/10/2022] Open
Abstract
Background Several studies have demonstrated a relationship between the posterior tibial slope (PTS) and meniscal tears in adults. However, little is known about the association between the PTS of the adolescents and medial meniscal tears (MMT). The purpose of this study was to evaluate the association between the PTS and MMT in adolescents, and to determine the optimal cut-off values of PTS for discriminating between the MMT and the control groups. Methods Between January 2018 and January 2020, a retrospective case-control study was performed. In this study, isolated MMT adolescent patients with no ligamentous injuries were matched by age and sex to a control group of radiologically normal images. The PTS was defined as the angle between the perpendicular line to proximal tibial cortex (PTC) and the tangent line along the tibial plateau. Then, both the medial posterior tibial slope (MPTS) and lateral posterior tibial slope (LPTS) were measured by plain radiographs on the lateral views. In addition, the optimal cut-off values of PTS were determined by the receiver operating characteristic (ROC) curve analysis. Results A total of seventy-two patients who met the inclusion criteria were enrolled in the final analysis (36 patients with isolated MMT, 36 controls). The MPTS was greater in the knees with isolated MMT (10.7° ± 2.1°) than that of the control group (8.8° ± 1.7°), showing significant difference (P<0.001). However, there was no significant difference regarding the LPTS between the isolated MMT and controls (11.5 ± 3.4 vs 10.9 ± 2.6, p>0.05). In the ROC curve analysis, the calculated cutoff value of the MPTS discriminating between the groups was 10.3°, with a sensitivity of 73.3% and specificity of 78.9%. Conclusions This study demonstrated that steep MPTS is associated with MMT, and MPTS≥10.3° was identified to be a risk factor for MMT in adolescents.
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Affiliation(s)
- Xiangtian Deng
- School of Medicine, Nankai University, Tianjin, 300071, People's Republic of China.,Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Hongzhi Hu
- Department of Orthopedics, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Qingcheng Song
- Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Yiran Zhang
- School of Medicine, Nankai University, Tianjin, 300071, People's Republic of China.,Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China
| | - Weijian Liu
- Department of Orthopedics, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.
| | - Lian Zhu
- Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China. .,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China.
| | - Yingze Zhang
- School of Medicine, Nankai University, Tianjin, 300071, People's Republic of China. .,Department of Orthopaedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China. .,NHC Key Laboratory of Intelligent Orthopaedic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, People's Republic of China.
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