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Huang X, Shao X, Cheng T, Li J. Laparoscopic intraperitoneal onlay mesh (IPOM) with fascial repair (IPOM-plus) for ventral and incisional hernia: a systematic review and meta-analysis. Hernia 2024; 28:385-400. [PMID: 38319440 DOI: 10.1007/s10029-024-02983-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/28/2023] [Indexed: 02/07/2024]
Abstract
PURPOSE Despite advancements in laparoscopic ventral hernia repair (LVHR) using the intraperitoneal onlay mesh technique (sIPOM), recurrence remains a common postoperative complication. The objective of this systematic review and meta-analysis is to compare the efficacy of defect closure (IPOM-plus) versus non-closure in ventral and incisional hernia repair. The aim is to determine which technique yields better outcomes in terms of reducing recurrence and complication rates. METHODS A comprehensive literature review was conducted in the PubMed, Web of Science, Cochrane Library, Embase, and ClinicalTrials.gov databases from their inception until October 1, 2022, to identify all online English publications that compared the outcomes of laparoscopic ventral hernia repair with and without fascia closure. RESULTS Three randomized controlled trials (RCTs) and eleven cohort studies involving 1585 patients met the inclusion criteria. The IPOM-plus technique was found to reduce the recurrence of hernias (OR = 0.51, 95% CI [0.35, 0.76], p < 0.01), seroma (OR = 0.48, 95% CI [0.32, 0.71], p < 0.01), and mesh bulging (OR = 0.08, 95% CI [0.01, 0.42], p < 0.01). Subgroup analysis revealed that body mass index (BMI) (OR = 0.43, 95% CI [0.29, 0.65], p < 0.0001), type of article (OR = 0.51, 95% CI [0.35, 0.76], p = 0.0008 < 0.01), geographical location (OR = 0.54, 95% CI [0.36, 0.82], p = 0.004 < 0.01), follow-up time (OR = 0.50, 95% CI [0.34, 0.73], p = 0.0004 < 0.01) had a significant influence on the postoperative recurrence of the IPOM-plus technique. CONCLUSION The IPOM-plus technique has been shown to greatly reduce the occurrence of recurrence, seroma, and mesh bulging. Overall, the IPOM-plus technique is considered a safe and effective procedure. However, additional randomized controlled studies with extended follow-up periods are necessary to further evaluate the IPOM-plus technique.
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Affiliation(s)
- X Huang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - X Shao
- Department of General Surgery, Affiliated Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - T Cheng
- Department of General Surgery, Affiliated Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - J Li
- Department of General Surgery, Affiliated Zhongda Hospital, Southeast University, Nanjing, 210009, China.
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Du B, Zhang W, Shao X, An J, Ma H, Zhao X, Xu L, An D, Tian Y, Dong Y, Niu H. "Triple-low" radiation dose bronchial artery CT angiography before bronchial artery embolisation: a feasibility study. Clin Radiol 2023; 78:e1017-e1022. [PMID: 37813755 DOI: 10.1016/j.crad.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 09/01/2023] [Accepted: 09/12/2023] [Indexed: 10/11/2023]
Abstract
AIM To explore the feasibility of a "triple-low" dose (low tube voltage, low tube current, and low contrast agent volume) bronchial artery computed tomography (CT) angiography (CTA) to replace routine dose bronchial artery CTA before bronchial artery embolisation (BAE). MATERIALS AND METHODS CTA was obtained from 60 patients with body mass index (BMI) < 30 kg/m2 using a 256 multi-section iCT system, and they were divided into two groups: (1) group A: 100 kVp, 100 mAs, 50 ml contrast medium (CM); (2) group B: 120 kVp, automatic tube current modulation (ACTM), 80 ml CM. CT attenuation of the thoracic aorta, image noise, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated, and subjective image quality scores and traceability scores assessed. The effective radiation dose was calculated. RESULTS The radiation dose was reduced by 79.7% in group A compared to group B (p<0.05). The CT attenuation of the thoracic aorta was increased by approximately 13% in group A compared to group B (p<0.05). Higher image noise, lower SNR, and CNR were obtained in group A compared to group B (all p<0.05). Both subjective image quality scores and traceability scores did not differ between groups A and B (both p>0.05). CONCLUSION It is feasible to use the "triple-low" dose CTA protocol for patients with a body mass index (BMI) < 30 kg/m2. The radiation dose was reduced by 79.7%, and the dose of contrast medium was reduced by 37.5% to ensure the diagnostic value.
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Affiliation(s)
- B Du
- Department of Radiology, Hebei Medical University, No. 361 Zhongshan East Road, Shijiazhuang, 050011, Hebei, China
| | - W Zhang
- Chengde Medical University, Anyuan Road, Chengde, 067000, Hebei, China
| | - X Shao
- Department of Radiology, Hebei Medical University, No. 361 Zhongshan East Road, Shijiazhuang, 050011, Hebei, China
| | - J An
- Department of Interventional Treatment, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Qinhuangdao, 066099, Hebei, China
| | - H Ma
- Chengde Medical University, Anyuan Road, Chengde, 067000, Hebei, China
| | - X Zhao
- Department of Radiology, Hebei Medical University, No. 361 Zhongshan East Road, Shijiazhuang, 050011, Hebei, China
| | - L Xu
- Department of Radiology, Hebei Medical University, No. 361 Zhongshan East Road, Shijiazhuang, 050011, Hebei, China
| | - D An
- Department of Interventional Treatment, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Qinhuangdao, 066099, Hebei, China
| | - Y Tian
- Department of Interventional Treatment, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Qinhuangdao, 066099, Hebei, China
| | - Y Dong
- Department of Interventional Treatment, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Qinhuangdao, 066099, Hebei, China
| | - H Niu
- Department of Interventional Treatment, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Qinhuangdao, 066099, Hebei, China.
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Shao X, Bai J, Ji A, Sun W. Retrospective analysis of medical emergencies in an oral emergency department. Med Oral Patol Oral Cir Bucal 2023; 28:e539-e544. [PMID: 37099708 PMCID: PMC10635636 DOI: 10.4317/medoral.25947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/22/2023] [Indexed: 04/28/2023] Open
Abstract
BACKGROUND To retrospectively analyze the rescue of medical emergencies and critical patients in the oral emergency department in a hospital during the past 14 years; analyze the general condition of patients, their diagnosis, etiological factors, and outcomes of the disease, so as to improve the ability of oral medical staff to deal with emergencies; and optimize the emergency procedures and resource allocation in such departments. MATERIAL AND METHODS Data and related information of critical patient emergency rescue from the Emergency Department of the Hospital of Stomatology, Peking University from January 2006 to December 2019, were analyzed. RESULTS A total of 53 critical patients were rescued in the oral emergency department in the past 14 years, which is an average of four cases per year, with an incidence rate of 0.00506%. The main type of emergency included hemorrhagic shock and active hemorrhage, with the highest incidence being in the age group of 19-40 years old. Among these cases, 67.92% (36/53) developed emergency and critical diseases before visiting the oral emergency department and 41.51% (22/53) had systemic diseases. After rescue, a total of 48 patients (90.57%) had stable vital signs and 5 (9.43%) died. CONCLUSIONS Oral doctors and other medical staff should be able to rapidly identify medical emergencies in oral emergency departments and commence emergency treatment. The department should be equipped with relevant first-aid drugs and devices, and medical staff should be regularly trained in practical first-aid skills. Patients with oral and maxillofacial trauma, massive hemorrhage and systemic diseases should be evaluated and treated according to their conditions and systemic organ function to prevent and reduce medical emergencies.
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Affiliation(s)
- X Shao
- 22 Zhongguancun Nandajie, Haidian District Beijing, 100089, China
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Sun S, Shao X, Liu X, Jiang W, Zhang L, Chen J, Wang Y, Xu T, Wu M. Assessing the feasibility of SUVindex (a metric derived from FDG PET/CT) for the diagnosis of polymyalgia rheumatica. Clin Radiol 2023; 78:737-745. [PMID: 37429761 DOI: 10.1016/j.crad.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/12/2023] [Accepted: 06/18/2023] [Indexed: 07/12/2023]
Abstract
AIM To evaluate the feasibility of standard uptake value (SUV) index (ratio lesional maximum SUV [SUVmax] to liver mean SUV [SUVmean]) as a metabolic parameter for diagnosing polymyalgia rheumatica (PMR). MATERIALS AND METHODS A retrospective group of patients with PMR and controls with symptoms similar to PMR but diagnosed with other diseases. Semiquantitative and qualitative analysis of 2-[18F]-fluoro-2-deoxy-d-glucose (18F-FDG) uptake at 18 sites was undertaken for all patients. The diagnostic value of positron-emission tomography/computed tomography (PET/CT) for PMR was assessed by R software using logistic regression and a generalised additive model (GAM). All images were examined independently by two nuclear medicine physicians with extensive work experience. RESULTS The characteristic sites of PMR were the ischial tuberosity, interspinous bursa, periarticular hip, and symphysis pubis enthesis. The area under the curve (AUC) of the characteristic site SUV index was 0.930, and the best cut-off value was 1.685 with a sensitivity of 84.6% and a specificity of 92.6%. After adjusting for potential confounders, the probability of PMR diagnosis increased as the characteristic site SUV index increased and there was a nonlinear correlation between the two. When the characteristic site SUV index was ≥2.56, the probability of PMR gradually reached the threshold effect, which was as high as 90% or more. CONCLUSION The characteristic site SUV index is an independent factor for diagnosing PMR, and PMR should be highly suspected when it is ≥ 1.685. Nonetheless, it is important to note that these findings are based on an initial retrospective single-centre study and require external validation and further prospective evaluation before being translated into clinical practice.
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Affiliation(s)
- S Sun
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - X Shao
- Department of Nuclear Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - X Liu
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - W Jiang
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - L Zhang
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - J Chen
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Y Wang
- Department of Nuclear Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - T Xu
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - M Wu
- Department of Rheumatology and Immunology, The Third Affiliated Hospital of Soochow University, Changzhou, China.
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Feng H, Liu H, Wang Q, Song M, Yang T, Zheng L, Wu D, Shao X, Shi G. Breast cancer diagnosis and prognosis using a high b-value non-Gaussian continuous-time random-walk model. Clin Radiol 2023:S0009-9260(23)00227-1. [PMID: 37344324 DOI: 10.1016/j.crad.2023.05.016] [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: 11/18/2022] [Revised: 05/11/2023] [Accepted: 05/19/2023] [Indexed: 06/23/2023]
Abstract
AIM To compare the diagnostic performance of mono-exponential model-derived apparent diffusion coefficient (ADC), continuous-time random-walk (CTRW) model-derived Dm, α, β and their combinations in discriminating malignancy of breast lesions, and investigate the association between model-derived parameters and prognosis-related immunohistochemical indices. MATERIALS AND METHODS A total of 85 patients with breast lesions (51 malignant, 34 benign) were analysed in this retrospective study. Clinical characteristics include oestrogen receptor (ER), progesterone receptor (PR), human epidermal receptor 2 (HER2), and Ki-67. The ADC was fitted using a mono-exponential model (b-values = 0, 800 s/mm2), while Dm, α, and β were fitted using a CTRW model. Independent Student's t-test and the Mann-Whitney U-test were used for the comparison of parameters. Discrimination performance was accomplished by receiver operating characteristic (ROC) analysis, and Spearman's correlation analysis was used to explore the association between immunohistochemical indices and diffusion parameters, the statistical significance level was p<0.05. RESULTS Dm and ADC demonstrated similar performance in differentiating malignant and benign lesions (AUC = 0.928 versus 0.930), while the combination of Dm, α, and β could improve the AUC to 0.969. The combined parameter generated by ADC, Dm, α, and β was effective in identifying the ER+/ER- and PR+/PR- patients. Temporal heterogeneity parameter α correlated significantly with the expression of PR. CONCLUSION Diffusion parameters derived from the CTRW model could effectively discriminate the malignancy of breast lesions. Meanwhile, the hormone receptor expression could be distinguished by combined diffusion parameters, and have the potential to reflect the prognosis.
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Affiliation(s)
- H Feng
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - H Liu
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Q Wang
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - M Song
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - T Yang
- Shenzhen United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - L Zheng
- Shenzhen United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - D Wu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronics Science, East China Normal University, Shanghai, China
| | - X Shao
- Department of Anesthesiology, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - G Shi
- Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.
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Wang R, Baxi V, Li Z, Locke D, Hedvat C, Sun Y, Walsh AM, Shao X, Basavanhally T, Greenawalt DM, Patah P, Novosiadly R. Pharmacodynamic activity of BMS-986156, a glucocorticoid-induced TNF receptor-related protein agonist, alone or in combination with nivolumab in patients with advanced solid tumors. ESMO Open 2023; 8:100784. [PMID: 36863094 PMCID: PMC10163007 DOI: 10.1016/j.esmoop.2023.100784] [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: 05/20/2022] [Revised: 11/02/2022] [Accepted: 01/04/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND The success of immune checkpoint inhibitors has revolutionized cancer treatment options and triggered development of new complementary immunotherapeutic strategies, including T-cell co-stimulatory molecules, such as glucocorticoid-induced tumor necrosis factor receptor-related protein (GITR). BMS-986156 is a fully agonistic human immunoglobulin G subclass 1 monoclonal antibody targeting GITR. We recently presented the clinical data for BMS-986156 with or without nivolumab, which demonstrated no compelling evidence of clinical activity in patients with advanced solid tumors. Here, we further report the pharmacodynamic (PD) biomarker data from this open-label, first-in-human, phase I/IIa study of BMS-986156 ± nivolumab in patients with advanced solid tumors (NCT02598960). MATERIALS AND METHODS We analyzed PD changes of circulating immune cell subsets and cytokines in peripheral blood or serum samples collected from a dataset of 292 patients with solid tumors before and during treatment with BMS-986156 ± nivolumab. PD changes in the tumor immune microenvironment were measured by immunohistochemistry and a targeted gene expression panel. RESULTS BMS-986156 + nivolumab induced a significant increase in peripheral T-cell and natural killer (NK) cell proliferation and activation, accompanied by production of proinflammatory cytokines. However, no significant changes in expression of CD8A, programmed death-ligand 1, tumor necrosis factor receptor superfamily members, or key genes linked with functional parameters of T and NK cells were observed in tumor tissue upon treatment with BMS-986156. CONCLUSIONS Despite the robust evidence of peripheral PD activity of BMS-986156, with or without nivolumab, limited evidence of T- or NK cell activation in the tumor microenvironment was observed. The data therefore explain, at least in part, the lack of clinical activity of BMS-986156 with or without nivolumab in unselected populations of cancer patients.
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Affiliation(s)
- R Wang
- Translational Medicine, Bristol Myers Squibb, Lawrenceville, USA
| | - V Baxi
- Informatics & Predictive Sciences, Bristol Myers Squibb, Lawrenceville, USA
| | - Z Li
- Lead Discovery and Optimization, Bristol Myers Squibb, Lawrenceville, USA
| | - D Locke
- Translational Medicine, Bristol Myers Squibb, Lawrenceville, USA
| | - C Hedvat
- Translational Medicine, Bristol Myers Squibb, Lawrenceville, USA
| | - Y Sun
- Translational Medicine, Bristol Myers Squibb, Lawrenceville, USA
| | - A M Walsh
- Informatics & Predictive Sciences, Bristol Myers Squibb, Lawrenceville, USA
| | - X Shao
- Translational Medicine, Bristol Myers Squibb, Lawrenceville, USA
| | - T Basavanhally
- Informatics & Predictive Sciences, Bristol Myers Squibb, Lawrenceville, USA
| | - D M Greenawalt
- Informatics & Predictive Sciences, Bristol Myers Squibb, Lawrenceville, USA
| | - P Patah
- Global Clinical Research, Bristol Myers Squibb, Lawrenceville, USA
| | - R Novosiadly
- Translational Medicine, Bristol Myers Squibb, Lawrenceville, USA.
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Gong CX, Shao X, Fan QH. [Inflammatory rhabdomyoblastic tumor: a clinicopathological analysis of 3 cases]. Zhonghua Bing Li Xue Za Zhi 2023; 52:169-171. [PMID: 36748140 DOI: 10.3760/cma.j.cn112151-20220507-00380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- C X Gong
- Department of Pathology, Changzhou Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Changzhou 213003, China
| | - X Shao
- Department of Pathology, Changzhou Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Changzhou 213003, China
| | - Q H Fan
- The First Affiliated Hospital of Nanjing Medical University (Department of Pathology, the People's Hospital of Jiangsu Province), Nanjing 210029, China
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Shao X, Liu H, Hou F, Bai Y, Cui Z, Lin Y, Jiang X, Bai P, Wang Y, Zhang Y, Lu C, Liu H, Zhou S, Yu P. Development and validation of risk prediction models for stroke and mortality among patients with type 2 diabetes in northern China. J Endocrinol Invest 2023; 46:271-283. [PMID: 35972686 DOI: 10.1007/s40618-022-01898-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 08/01/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND Stroke is one of the leading causes of disability and mortality in patients with type 2 diabetes mellitus (T2DM). Risk models have been developed for predicting stroke and stroke-associated mortality among patients with T2DM. Here, we evaluated risk factors of stroke for individualized prevention measures in patients with T2DM in northern China. METHODS In the community-based Tianjin Chronic Disease Cohort study, 58,042 patients were enrolled between January 2014 and December 2019. We used multiple imputation (MI) to impute missing variables and univariate and multivariate Cox's proportional hazard regression to screen risk factors of stroke. Furthermore, we established and validated first-ever prediction models for stroke (Model 1 and Model 2) and death from stroke (Model 3) and evaluated their performance. RESULTS In the derivation and validation groups, the area under the curves (AUCs) of Models 1-3 was better at 5 years than at 8 years. The Harrell's C-index for all models was above 0.7. All models had good calibration, discrimination, and clinical net benefit. Sensitivity analysis using the MI dataset indicated that all models had good and stable prediction performance. CONCLUSION In this study, we developed and validated first-ever risk prediction models for stroke and death from stroke in patients with T2DM, with good discrimination and calibration observed in all models. Based on lifestyle, demographic characteristics, and laboratory examination, these models could provide multidimensional management and individualized risk assessment. However, the models developed here may only be applicable to Han Chinese.
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Affiliation(s)
- X Shao
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China
| | - H Liu
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China
| | - F Hou
- Community Health Service Center, Jiefang Road, Tanggu Street, Binhai New District, Tianjin, China
| | - Y Bai
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China
| | - Z Cui
- Department of Epidemiology and Health Statistics, Tianjin Medical University, Heping District, Tianjin, China
| | - Y Lin
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China
| | - X Jiang
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China
| | - P Bai
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China
| | - Y Wang
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China
| | - Y Zhang
- Community Health Service Center, Jiefang Road, Tanggu Street, Binhai New District, Tianjin, China
| | - C Lu
- Community Health Service Center, Jiefang Road, Tanggu Street, Binhai New District, Tianjin, China
| | - H Liu
- Community Health Service Center, Jiefang Road, Tanggu Street, Binhai New District, Tianjin, China
| | - S Zhou
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China
| | - P Yu
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, 300134, China.
- Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin, 300134, China.
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Jiang F, Zhao Z, Shao X. Time series analysis of COVID-19 infection curve: A change-point perspective. J Econom 2023; 232:1-17. [PMID: 32836681 PMCID: PMC7392157 DOI: 10.1016/j.jeconom.2020.07.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/13/2020] [Accepted: 07/06/2020] [Indexed: 05/20/2023]
Abstract
In this paper, we model the trajectory of the cumulative confirmed cases and deaths of COVID-19 (in log scale) via a piecewise linear trend model. The model naturally captures the phase transitions of the epidemic growth rate via change-points and further enjoys great interpretability due to its semiparametric nature. On the methodological front, we advance the nascent self-normalization (SN) technique (Shao, 2010) to testing and estimation of a single change-point in the linear trend of a nonstationary time series. We further combine the SN-based change-point test with the NOT algorithm (Baranowski et al., 2019) to achieve multiple change-point estimation. Using the proposed method, we analyze the trajectory of the cumulative COVID-19 cases and deaths for 30 major countries and discover interesting patterns with potentially relevant implications for effectiveness of the pandemic responses by different countries. Furthermore, based on the change-point detection algorithm and a flexible extrapolation function, we design a simple two-stage forecasting scheme for COVID-19 and demonstrate its promising performance in predicting cumulative deaths in the U.S.
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Affiliation(s)
- Feiyu Jiang
- Center for Statistical Science and Department of Industrial Engineering, Tsinghua University, Beijing 100084, China
| | - Zifeng Zhao
- Department of Information Technology, Analytics, and Operations, Mendoza College of Business, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Xiaofeng Shao
- Department of Statistics, University of Illinois at Urbana Champaign, Champaign, IL 61820, USA
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Shao X. Improved energy-efficient routing architecture for traffic management system using a hybrid meta-heuristic algorithm in Internet of vehicles. JHS 2022. [DOI: 10.3233/jhs-222003] [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] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Today, Internet of Vehicles (IoV) applications communicate with smart devices and deploy Intelligent Transportation Systems (ITS) to recognize traffic congestion problems. One of the main challenges of smart cities and IoV platforms is data routing methods for smart traffic congestion problems to navigate the individual information of data transmission as a critical issue in the ITS. Providing a way to extend the Quality of Service (QoS) variables and energy efficiency methods for directing data transmission in routing-based traffic management systems within the IoV environment is an important issue since the energy consumption of IoV devices is a critical issue in low-power saving storage. This paper presents a hybrid Genetic Algorithm and Social Spider Optimization (GA-SSO) algorithm for an energy-aware routing schema for optimizing traffic congestion and smart devices in the IoV environment. After conducting some studies and comparisons, the exactness and prevalence of the proposed schema were received. Experimental results confirmed that the GA-SSO algorithm calculation decides optimal and ideal arrangement for energy-aware routing schema demonstrate by essentially making strides the execution of QoS variables can oversee information blockage comes from data transmission between IoV nodes.
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Affiliation(s)
- Xiaofeng Shao
- China Railway Shanghai Design Institute Group Co., Ltd., No. 1265 Gonghe Xin Road, Shanghai, 200070, China
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He S, Zhou X, Yang G, Zhou Z, Zhang Y, Shao X, Liang T, Lv N, Chen J, Qian Z. Proteomic comparison between physiological degeneration and needle puncture model of disc generation disease. Eur Spine J 2022; 31:2920-2934. [PMID: 35842490 DOI: 10.1007/s00586-022-07284-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 04/20/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The completeness of the intervertebral disc proteome is fundamental to the integrity and functionality of the intervertebral disc. METHODS The 20 experimental rats were placed into two groups randomly, normal group (NG) and acupuncture pathological degeneration group-2 weeks (APDG-2w). The ten 24-month-old rats were grouped into physiological degeneration group (PDG). Magnetic resonance imaging, X-ray examination, histological staining (hematoxylin & eosin, safranin-O cartilage, and alcian blue staining), and immunohistochemical examination were carried out for assessing the degree of disc degradation. Intervertebral disc was collected, and protein composition was determined by LC- MS, followed by bioinformatic analysis including significance analysis, subcellular localization prediction, protein domain prediction, GO function and KEGG pathway analysis, and protein interaction network construction. LC-PRM was done for protein quantification. RESULTS Physiological degeneration and especially needle puncture decreased T2 signal intensity and intervertebral disc height. Results from hematoxylin & eosin, safranin-O, and alcian blue staining revealed that the annulus fibrosus apparently showed the wavy and collapsed fibrocartilage lamellas in APDG-2w and PDG groups. The contents of the nucleus pulposus were decreased in physiological degeneration group and APDG-2w group compared with NG. Results from immunohistochemical analysis suggested the degeneration of intervertebral disc and inflammation in APDG-2w and PDG groups. The protein composition and expression between needle puncture rat models and the physiological degeneration group showed significant difference. CONCLUSIONS Our studies produced point-reference datasets of normal rats, physiological degeneration rats, and needle puncture rat models, which is beneficial to subsequent pathological studies. There is differential expression of protein expression in degenerative discs with aging and acupuncture, which may be used as a potential discriminating index for different intervertebral degenerations.
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Affiliation(s)
- Shuangjun He
- Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Xinmin Road 2, Danyang, Zhenjiang, 212300, Jiangsu, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Xinfeng Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Guotao Yang
- Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Xinmin Road 2, Danyang, Zhenjiang, 212300, Jiangsu, China
| | - Zhangzhe Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Yijian Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Xiaofeng Shao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Ting Liang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Nanning Lv
- Department of Orthopedic Surgery, The Second People's Hospital of Lianyungang, 41 Hailian Street, Lianyungang, Jiangsu, China.
| | - Jianhong Chen
- Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Xinmin Road 2, Danyang, Zhenjiang, 212300, Jiangsu, China.
| | - Zhonglai Qian
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
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Zhang Y, Dilimulati D, Chen D, Cai M, You H, Sun H, Gao X, Shao X, Zhang M, Qu S. Serum fibrinogen-like protein 1 as a novel biomarker in polycystic ovary syndrome: a case-control study. J Endocrinol Invest 2022; 45:2123-2130. [PMID: 35790683 DOI: 10.1007/s40618-022-01844-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/17/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE To investigate the relationship between fibrinogen-like protein 1 (FGL-1) concentrations and various metabolic characteristics in patients with polycystic ovary syndrome (PCOS) and explore whether FGL-1 could be a predictive biomarker for PCOS. METHODS This case-control study included 136 patients with PCOS and 34 normal controls recruited in the Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital between May 2017 and June 2021. Anthropometric characteristics, metabolic parameters, and reproductive hormones were collected. Serum FGL-1 measurement was conducted using enzyme-linked immunosorbent assay (ELISA) kits. RESULTS Serum FGL-1 concentrations were higher in patients with PCOS than in control subjects in body mass index (BMI) subgroups, insulin resistance (IR) subgroups, and hepatic function subgroups, respectively. Serum FGL-1 concentrations were significantly associated with BMI, glycosylated hemoglobin A1c (HbA1c), fasting plasma glucose (FPG), homeostasis model assessment of insulin resistance (HOMA-IR), alanine aminotransferase (ALT), aspartate aminotransferase (AST), high-density lipoprotein cholesterol (HDL-c), and serum uric acid (SUA) in all individuals. The receiver operating characteristic (ROC) curve analysis revealed that the best cutoff value for FGL-1 levels to predict PCOS was 21.02 ng/ml with a sensitivity of 74.3% and a specificity of 70.6%. Both univariate and multiple logistic regressions indicated that the odds ratio (OR) for PCOS significantly increased in the subjects with high levels of FGL-1. CONCLUSION In our study, FGL-1 was associated with serum aminotransferase and various metabolic indexes. Moreover, the high risk of PCOS was independently associated with the increased FGL-1 levels, which suggested that FGL-1 could be a predictive biomarker for PCOS.
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Affiliation(s)
- Y Zhang
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - D Dilimulati
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - D Chen
- Department of Pediatrics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - M Cai
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - H You
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - H Sun
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - X Gao
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - X Shao
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China.
| | - M Zhang
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China.
| | - S Qu
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
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He S, Zhang Y, Zhou Z, Shao X, Chen K, Dai S, Liang T, Qian Z, Luo Z. Similarity and difference between aging and puncture-induced intervertebral disc degeneration. J Orthop Res 2022; 40:2565-2575. [PMID: 35072275 DOI: 10.1002/jor.25281] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 01/10/2022] [Accepted: 01/16/2022] [Indexed: 02/04/2023]
Abstract
The purpose of our study was to investigate the changes in micromorphology and mechanical properties of intervertebral discs degeneration induced by aging and puncture. Normal group (NG), 2 weeks post-puncture degeneration group (PDG) and aging degeneration group (ADG) each included 10 rats. Plain film, magnetic resonance imaging, and histological testing were utilized to assess intervertebral disc degeneration. Atomic force microscope was utilized to analyze the microstructure and elastic modulus of the intervertebral disc, while immunohistochemistry was employed to assess alterations in the cell matrix using collagen I, collagen II, matrix metalloproteinase-3 (MMP-3), and tumour necrosis factor-α (TNF-α). The results showed that the disc height ratio between PDG and ADG decreased. In the PDG and ADG group, histological scores both increased, the gray value of the T2 signal decreased, the proportion of MMP-3 and TNF-positive cells in intervertebral disc tissues was higher (p < 0.05) and the IOD values of COL-2 lower in intervertebral disc tissues (p < 0.05). The elastic modulus of PDG and ADG annulus fibers (AF) increased compared to the NG (p < 0.05); when compared to PDG, the elastic modulus of ADG AF decreased (p < 0.05). The elastic modulus of PDG and ADG collagen increased in the nucleus pulposus (NP, p < 0.05); ADG had a greater AF diameter than NG and PDG (p < 0.05). The results indicated that ADG fiber diameter thickens, and chronic inflammation indicators rise; PDG suffers from severe extracellular matrix loss. The degeneration of the ADG and PDG intervertebral discs is different. The results provide foundation for clinical research.
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Affiliation(s)
- Shuangjun He
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Danyang, Jiangsu, China
| | - Yijian Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Zhangzhe Zhou
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiaofeng Shao
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Kangwu Chen
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Shouqian Dai
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ting Liang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Department of Orthopaedics, Orthopaedic Institute, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Zhonglai Qian
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Zongping Luo
- Department of Orthopaedics, Orthopaedic Institute, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
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Zhao Z, Jiang F, Shao X. Segmenting time series via self‐normalisation. J R Stat Soc Series B Stat Methodol 2022. [DOI: 10.1111/rssb.12552] [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: 11/27/2022]
Affiliation(s)
- Zifeng Zhao
- Mendoza College of Business University of Notre Dame Notre Dame Indiana USA
| | - Feiyu Jiang
- Department of Statistics and Data Science Fudan University Shanghai China
| | - Xiaofeng Shao
- Department of Statistics University of Illinois at Urbana Champaign Champaign Illinois USA
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15
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Zhang Y, Shao X, Wu W. Correction note: “Asymptotic spectral theory for nonlinear time series”. Ann Stat 2022. [DOI: 10.1214/22-aos2206] [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: 11/19/2022]
Affiliation(s)
- Yi Zhang
- Department of Statistics, University of Illinois Urbana-Champaign
| | - Xiaofeng Shao
- Department of Statistics, University of Illinois Urbana-Champaign
| | - Weibiao Wu
- Department of Statistics, University of Chicago
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16
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Deng L, Hua X, Wu Q, Lv N, Shao X, Zhou Q, Liu H, Qian Z. Should adjacent asymptomatic lumbar disc herniation of L5-S1 isthmic spondylolisthesis be simultaneously rectified? Evaluation of postoperative spino-pelvic sagittal balance and functional outcomes. BMC Musculoskelet Disord 2022; 23:843. [PMID: 36064666 PMCID: PMC9442967 DOI: 10.1186/s12891-022-05794-9] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/31/2022] [Indexed: 11/18/2022] Open
Abstract
Background This study aimed to analyze the efficacy of the simultaneous rectification of adjacent asymptomatic lumbar disc herniation (asLDH) of L5-S1 isthmic spondylolisthesis (IS). Methods One hundred and forty-eight patients with L5-S1 IS, and simultaneous L4-5 asLDH, were recruited between January 2012 and December 2017, for this study. Group A: seventy-two patients received PLIF at L5-S1. Group B: seventy-six patients received PLIF at L4-S1. The radiographic outcomes were assessed via the lumbar lordosis (LL), segmental lordosis (SL), sacral slope (SS), pelvic incidence (PI), pelvic tilt (PT), PI-LL and slip degree (SD). The functional outcomes were evaluated via the visual analog scale (VAS), Oswestry disability index (ODI), and reoperation rate. The potential risk hazards for reoperation were identified using both uni- and multivariate logistic regression analyses. Results The postoperative LL, SL, PT, SS, SD, VAS, and ODI exhibited vast improvements (P < 0.05). Relative to Group A, Group B exhibited markedly better LL, SL, PT, PI-LL,VAS and ODI scores at the final follow-up (P < 0.05). Group B also achieved better SD values post surgery than Group A (P < 0.05). The reoperation rate was remarkably elevated in Group A, compared to Group B (P < 0.05). The multivariate logistic regression analysis showed the L4-5 asLDH grade was a stand-alone risk hazard for reoperation, whereas, pre-SL and pre-LL offered protection against reoperation (P < 0.05). Conclusions L4-S1 PLIF is recommended to correct asLDH in L5-S1 IS patients, with high-grade disc herniation and abnormal sagittal alignment.
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Affiliation(s)
- Lei Deng
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No.899 Pinhai Road, Suzhou, 215006, Jiangsu, China
| | - Xi Hua
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No.899 Pinhai Road, Suzhou, 215006, Jiangsu, China
| | - Qian Wu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No.899 Pinhai Road, Suzhou, 215006, Jiangsu, China
| | - Nanning Lv
- Department of Orthopedic Surgery, The Second People's Hospital of Lianyungang, 41 Hailian East Street, Lianyungang, 222003, Jiangsu, China
| | - Xiaofeng Shao
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No.899 Pinhai Road, Suzhou, 215006, Jiangsu, China
| | - Quan Zhou
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No.899 Pinhai Road, Suzhou, 215006, Jiangsu, China
| | - Hao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No.899 Pinhai Road, Suzhou, 215006, Jiangsu, China.
| | - Zhonglai Qian
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No.899 Pinhai Road, Suzhou, 215006, Jiangsu, China.
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17
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Li N, Li J, Yan R, Zhang BZ, Shao X, Wang HX. [Percutaneous transhepatic access for catheter ablation of a patient with heterotaxy syndrome complicating with atrial fibrillation: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:819-821. [PMID: 35982017 DOI: 10.3760/cma.j.cn112148-20220609-00457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- N Li
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - J Li
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - R Yan
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - B Z Zhang
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - X Shao
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - H X Wang
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
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18
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He X, Shao X. A Conversation with Stephen Portnoy. Stat Sci 2022. [DOI: 10.1214/21-sts845] [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: 11/19/2022]
Affiliation(s)
- Xuming He
- Xuming He is H.C. Carver Collegiate Professor, Department of Statistics, University of Michigan, Ann Arbor, USA
| | - Xiaofeng Shao
- Xiaofeng Shao is Professor, Department of Statistics, University of Illinois at Urbana-Champaign, Champaign, USA
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Liu H, Zhou Q, Shao X, Zhang J, Deng L, Liu T, Yang H. Percutaneous Kyphoplasty in Patients with Severe Osteoporotic Vertebral Compression Fracture with and without Intravertebral Cleft: A Retrospective Comparative Study. Int J Gen Med 2022; 15:6199-6209. [PMID: 35880137 PMCID: PMC9307916 DOI: 10.2147/ijgm.s369840] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/21/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose To comparatively analyze the clinical and radiographic outcomes of percutaneous kyphoplasty (PKP) in patients with severe osteoporotic vertebral compression fracture (sOVCF) with or without intravertebral cleft (IVC). Methods We enrolled a total of 75 patients with sOVCF receiving PKP between January 2016 and December 2018. The patients were divided into the following two groups based on their radiographic findings: with IVC (IVC group) and without IVC (NIVC group). The following radiographic outcomes were determined: anterior vertebral height (AVH), kyphotic angle (KA), lumbar lordosis (LL), sacral slope (SS), pelvic incidence (PI), and pelvic tilt (PT). The clinical functional assessment included Oswestry disability index (ODI) and visual analog scale (VAS) scores. Results No significant difference was found between the demographic data of the two groups (P > 0.05). AVH, KA, and LL in both groups were significantly corrected one month after surgery (P < 0.05). There was statistical difference between the two groups in AVH and KA one year and three years after surgery, and in LL and PT three years after surgery (P < 0.05). Compared with the results one month after surgery, AVH, KA, and LL of the IVC group deteriorated significantly one year and three years after surgery, whereas AVH, KA, and LL of the NIVC group deteriorated significantly three years after surgery (P < 0.05). The VAS and ODI scores in both groups decreased significantly one month, one year, and three years after surgery than preoperative results (P < 0.05), and a statistical difference was observed between the two groups three years after surgery (P < 0.05). Conclusion PKP can give satisfactory outcomes for the treatment of sOVCF with or without IVC. However, the NIVC group showed better clinical outcomes and could maintain spinal sagittal balance better than the IVC group during long-term follow-up.
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Affiliation(s)
- Hao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People's Republic of China
| | - Quan Zhou
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People's Republic of China
| | - Xiaofeng Shao
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People's Republic of China
| | - Junxin Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People's Republic of China
| | - Lei Deng
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People's Republic of China
| | - Tao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People's Republic of China
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People's Republic of China
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Lv N, Zhou Z, He S, Shao X, Zhou X, Feng X, Qian Z, Zhang Y, Liu M. Identification of osteoporosis based on gene biomarkers using support vector machine. Open Med (Wars) 2022; 17:1216-1227. [PMID: 35859791 PMCID: PMC9263892 DOI: 10.1515/med-2022-0507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 04/19/2022] [Accepted: 05/15/2022] [Indexed: 11/26/2022] Open
Abstract
Osteoporosis is a major health concern worldwide. The present study aimed to identify effective biomarkers for osteoporosis detection. In osteoporosis, 559 differentially expressed genes (DEGs) were enriched in PI3K-Akt signaling pathway and Foxo signaling pathway. Weighted gene co-expression network analysis showed that green, pink, and tan modules were clinically significant modules, and that six genes (VEGFA, DDX5, SOD2, HNRNPD, EIF5B, and HSP90B1) were identified as “real” hub genes in the protein–protein interaction network, co-expression network, and 559 DEGs. The sensitivity and specificity of the support vector machine (SVM) for identifying patients with osteoporosis was 100%, with an area under curve of 1 in both training and validation datasets. Our results indicated that the current system using the SVM method could identify patients with osteoporosis.
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Affiliation(s)
- Nanning Lv
- Department of Orthopedic Surgery, The Second People's Hospital of Lianyungang, Lianyungang, Jiangsu 222003, China
| | - Zhangzhe Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Shuangjun He
- Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Danyang, Jiangsu 212300, China
| | - Xiaofeng Shao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Xinfeng Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Xiaoxiao Feng
- Department of Orthopedic Surgery, The Second People's Hospital of Lianyungang, Lianyungang, Jiangsu 222003, China
| | - Zhonglai Qian
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Yijian Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Mingming Liu
- Department of Orthopedic Surgery, The Second People's Hospital of Lianyungang, Lianyungang, Jiangsu 222003, China
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Shao X, Wu J, Zhou Z, Lv N, Chen K, He S, Sun Z, Qian Z. Bone Cement and Pedicle Screw for the Treatment of Spinal Tumors with Spinal Cord Compression and Posterior Wall Defects. Orthop Surg 2022; 14:1827-1835. [PMID: 35794856 PMCID: PMC9363719 DOI: 10.1111/os.13316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/14/2022] [Accepted: 04/19/2022] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE To compare the safety and efficacy of posterior internal fixation with open vertebroplasty (VP) and posterior internal fixation with open kyphoplasty (KP) in the treatment of metastatic epidural spinal cord compression (MESCC) with posterior wall destruction. METHODS This retrospective study, conducted between January 2016 and May 2019, equally divided 60 patients with MESCC and posterior wall destruction into two groups based on the surgical method: open vertebroplasty with pedicle screw fixation (VP group) and open kyphoplasty with pedicle screw fixation (KP group). Visual analogue scale (VAS), SF-36 scores, middle vertebral height (MVH), and posterior vertebral height (PVH) were evaluated for the two groups preoperatively, postoperatively, and 1 year after surgery. Spinal Instability Neoplastic Score, Frankel grades and complications were recorded and evaluated. RESULTS Five patients were excluded from the analysis, and our study cohort consisted of 55 adult patients who met the inclusion criteria. The VAS and SF-36 scores of these two groups of patients significantly improved, when compared with those before the surgery (P < 0.05). There were significant differences in total cost (8835 ± 1468 vs 9540 ± 053 USD) and cement volume (4.51 ± 0.96 ml vs 6.35 ± 1.09 ml) between two groups (P < 0.05). The MVH and PVH of these two groups of patients significantly improved, when compared with those before the surgery (P < 0.05). The MVH was significantly larger in the KP group than in the VP group postoperatively (20.15 ± 4.86 vs 17.70 ± 3.78, P < 0.05) and at the final follow-up (20.42 ± 5.59 vs 17.28 ± 3.23, P < 0.05). However, the PVH of the two groups did not significantly differ at the two postoperative follow-ups (P > 0.05). No significant differences were found in surgery time, time from surgery to discharge, blood loss and complications between both groups postoperatively (P > 0.05). CONCLUSION In the short term, both approaches are effective and safe in patients with MESCC and posterior wall destruction. The posterior internal fixation with open VP may be a good choice of surgical method in patients with MESCC and posterior wall defects.
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Affiliation(s)
- Xiaofeng Shao
- The Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jian Wu
- The Department of Orthopaedic Surgery, Changsu No.2. People's Hospital, Suzhou, China
| | - Zhangzhe Zhou
- The Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Nanning Lv
- Department of Orthopaedic Surgery, The Second People's Hospital of Lianyungang, Lianyungang, China
| | - Kangwu Chen
- The Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Shuangjun He
- Department of Orthopaedic Surgery, Affiliated Danyang Hospital of Nantong University, Danyang, China
| | - Zhiyong Sun
- The Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhonglai Qian
- The Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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He S, Zhou Z, Shao X, Zhou L, Zhang C, Zhou X, Wu S, Chen K, Wang Y, Qian Z. Comparing the Bridge-Type Zero-Profile Anchored Spacer (ROI-C) Interbody Fusion Cage System and Anterior Cervical Discectomy and Fusion (ACDF) with Plating and Cage System in Cervical Spondylotic Myelopathy. Orthop Surg 2022; 14:1100-1108. [PMID: 35478487 PMCID: PMC9163982 DOI: 10.1111/os.13268] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE To compare the clinical efficacy and radioactivity of the bridge-type zero-profile anchored spacer (ROI-C) interbody fusion cage and anterior cervical discectomy and fusion with plating and cage system (ACDF) for cervical spondylotic myelopathy (CSM). METHODS This is a retrospective contrastive study. We recruited 35 patients who received ROI-C (ROI-C group) and 34 patients who received ACDF (ACDF group), between January 2014 to January 2019, at our treatment center. The ROI-C group comprised of 11 males and 24 females with a mean age of 61.59 ± 8.21 years (range, 51-71 years). The ACDF group comprised of 12 males and 22 females with a mean age of 60.15 ± 7.52 years (range, 52-74 years). Neck Disability Index (NDI), Japanese Orthopaedic Association score (JOA), Odom's score, cervical Cobb angle, fusion rate, adjoining ossification, and dysphagia. RESULTS A total of 69 patients met the inclusion criteria, and these patients received more than two years of follow-up. There were significant differences in surgical duration (101 ± 22 min vs. 118 ± 29 min) and blood loss (102 ± 46 ml vs. 145 ± 58 ml) between two groups (P < 0.05). The JOA and NDI of these two groups of patients significantly improved, when compared with those before the operation (P < 0.05). Twenty-nine of 35 patients in the ROI-C group and 27 of 34 patients in ACDF group achieved good or excellent outcomes according to Odom's criteria. The cervical lordosis of both two groups significantly increased, when compared with those before the operation (P < 0.05). In the ROI-C group, the postoperative fusion rate was 85.7% at the 3-month follow-up and 100% at the final follow-up. In the ACDF group, the postoperative fusion rate was 82.4% at the 3-month follow-up and 100% at the final follow-up. The dysphagia incidence of the ACDF group was higher than that of the ROI-C group postoperatively and at the one month after surgery (P < 0.05), but no significant difference was found in the incidence of dysphagia at final follow-up (P > 0.05). CONCLUSION Both ROI-C and ACDF achieved good therapeutic effects. However, ROI-C can reduce the operation time and postoperative complications.
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Affiliation(s)
- Shuangjun He
- Department of Orthopedic Surgery, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, China
| | - Zhangzhe Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaofeng Shao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lijian Zhou
- Department of Orthopedic Surgery, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, China
| | - Changhao Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xinfeng Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Shuhua Wu
- Department of Orthopedic Surgery, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, China
| | - Kangwu Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yaowei Wang
- Department of Orthopedic Surgery, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, China
| | - Zhonglai Qian
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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Shao X, Kong W, Li Y, Zhang S. Quantitative structure-activity relationship modeling reveals the minimal sequence requirement and amino acid preference of sirtuin-1's deacetylation substrates in diabetes mellitus. J Bioinform Comput Biol 2022; 20:2250008. [PMID: 35451939 DOI: 10.1142/s0219720022500081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sirtuin 1 (SIRT1) is a nicotinamide adenine dinucleotide (NAD[Formula: see text]-dependent deacetylase involved in multiple glucose metabolism pathways and plays an important role in the pathogenesis of diabetes mellitus (DM). The enzyme specifically recognizes its deacetylation substrates' peptide segments containing a central acetyl-lysine residue as well as a number of amino acids flanking the central residue. In this study, we attempted to ascertain the minimal sequence requirement (MSR) around the central acetyl-lysine residue of SIRT1 substrate-recognition sites as well as the amino acid preference (AAP) at different residues of the MSR window through quantitative structure-activity relationship (QSAR) strategy, which would benefit our understanding of SIRT1 substrate specificity at the molecular level and is also helpful to rationally design substrate-mimicking peptidic agents against DM by competitively targeting SIRT1 active site. In this procedure, a large-scale dataset containing 6801 13-mer acetyl-lysine peptides (and their SIRT1-catalyized deacetylation activities) were compiled to train 10 QSAR regression models developed by systematic combination of machine learning methods (PLS and SVM) and five amino acids descriptors (DPPS, T-scale, MolSurf, [Formula: see text]-score, and FASGAI). The two best QSAR models (PLS+FASGAI and SVM+DPPS) were then employed to statistically examine the contribution of residue positions to the deacetylation activity of acetyl-lysine peptide substrates, revealing that the MSR can be represented by 5-mer acetyl-lysine peptides that meet a consensus motif X[Formula: see text]X[Formula: see text]X[Formula: see text](AcK)0X[Formula: see text]. Structural analysis found that the X[Formula: see text] and (AcK)0 residues are tightly packed against the enzyme active site and confer both stability and specificity for the enzyme-substrate complex, whereas the X[Formula: see text], X[Formula: see text] and X[Formula: see text] residues are partially exposed to solvent but can also effectively stabilize the complex system. Subsequently, a systematic deacetylation activity change profile (SDACP) was created based on QSAR modeling, from which the AAP for each residue position of MSR was depicted. With the profile, we were able to rationally design an SDACP combinatorial library with promising deacetylation activity, from which nine MSR acetyl-lysine peptides as well as two known SIRT1 acetyl-lysine peptide substrates were tested by using SIRT1 deacetylation assay. It is revealed that the designed peptides exhibit a comparable or even higher activity than the controls, although the former is considerably shorter than the latter.
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Affiliation(s)
- X Shao
- Department of Nephrology, Suzhou Kowloon Hospital, Shanghai Jiao Tong University, School of Medicine, Suzhou 215000, P. R. China
| | - W Kong
- Department of Nephrology, Suzhou Kowloon Hospital, Shanghai Jiao Tong University, School of Medicine, Suzhou 215000, P. R. China
| | - Y Li
- Department of Nephrology, Suzhou Kowloon Hospital, Shanghai Jiao Tong University, School of Medicine, Suzhou 215000, P. R. China
| | - S Zhang
- Department of Nephrology, Suzhou Kowloon Hospital, Shanghai Jiao Tong University, School of Medicine, Suzhou 215000, P. R. China
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Affiliation(s)
- Runmin Wang
- Department of Statistical Science, Southern Methodist University
| | - Changbo Zhu
- Department of Statistics, University of California at Davis
| | | | - Xiaofeng Shao
- Department of Statistics, University of Illinois at Urbana–Champaign
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Shao X, Liu H, Wu J, Qian Z, Qu R, Liu T. A retrospective comparative study of postoperative sagittal balance in isthmic L5–S1 spondylolisthesis using single segment or two-segment pedicle screw fixation. BMC Musculoskelet Disord 2022; 23:145. [PMID: 35151287 PMCID: PMC8841088 DOI: 10.1186/s12891-022-05098-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 02/09/2022] [Indexed: 11/25/2022] Open
Abstract
Objective To compare the radiographic parameters and clinical outcomes of isthmic L5–S1 spondylolisthesis with single segment or two-segment pedicle screw fixation. Methods Between January 2018 and January 2019, a total of 76 patients with isthmic L5–S1 spondylolisthesis were included in this study. All patients were treated with varying numbers of pedicle screw fixation with single-segment fusion during posterior lumbar interbody fusion (PLIF). Patients were divided into two groups, based on the number of pedicle screws placed during fixation, namely, 4 screws (4S) group and 6 screws (6S) group. Subsequently, the sagittal balance parameters were measured, which included slippage degree (SD), lumbar lordosis (LL), segmental lordosis (SL), pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), and sagittal vertical axis (SVA). Clinical functional outcomes were assessed using the visual analog scale (VAS) for back pain and the oswestry disability index (ODI) scores. Results The 4S group comprised of 10 males and 27 females, with a median age of 55.2 ± 10.8 years old and a mean follow-up of 16.95 ± 4.16 months. The 6S group comprised of 14 males and 25 females, with a median age of 58.1 ± 7.5 years old and a median follow-up of 17.33 ± 3.81 months. No significant differences were evident in all preoperative parameters between both groups. In contrast, the postoperative LL, SL, PT, SS, and SD values increased significantly, compared to the preoperative values in both groups (all P < 0.05). At the last follow-up, the 6S group exhibited better correction in LL, SL, and PT, relative to the 4S group (all P < 0.05). A significant SD difference was observed between both groups at all points post surgery (P < 0.05). The postoperative slip correction rate was significantly larger in the 6S group, compared to the 4S group (P < 0.05). The postoperative VAS and ODI scores of both groups improved significantly, when compared to the preoperative scores (both P < 0.05). However, there were no significant differences in the ODI and VAS scores between the two groups at all time points. Conclusions The clinical outcomes of both approaches appeared to be satisfactory. In terms of short-term outcomes, the 6S group exhibited better spinal sagittal restoration and stability than the 4S group.
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Shao X, Peng P, Yang P, Xu T, Liu Z, Hua X, Zhu X, Qian Z, Yang H, Mao H, Chen K. A retrospective comparative study of clinical efficacy of percutaneous short segment pedicle screw fixation with or without screwing of the fractured vertebra with O-arm navigation. BMC Musculoskelet Disord 2022; 23:108. [PMID: 35105365 PMCID: PMC8808771 DOI: 10.1186/s12891-022-05069-3] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 01/27/2022] [Indexed: 11/16/2022] Open
Abstract
Objective To retrospectively analyze the short and long-term efficacies of O-arm-navigated percutaneous short segment pedicle screw fixation, with or without screwing of the fractured vertebra. Methods A total of 42 patients who underwent O-arm-navigated percutaneous short segment pedicle screw fixation for the treatment of thoracolumbar fractures from February 2015 to December 2018 were selected for analysis. The patients were divided into two groups according to the surgical intervention they received: Group A received percutaneous short segment pedicle screw fixation with screwing of the fractured vertebra and Group B received percutaneous short segment pedicle screw fixation without screwing of the fractured vertebra. Radiographic analysis included Cobb angles and percentage of anterior vertebral height (AVH%). Clinical functional outcomes were assessed using the visual analog scale (VAS) for back pain and the oswestry disability index (ODI) scores. Results No significant differences were observed in the operation time and intraoperative blood loss between the two groups (P > 0.05). The length of incision was statistically significantly different between the two groups (P < 0.05). There was no significant difference in Cobb angle and AVH% between the two groups before and after the surgery (P > 0.05). However, the Cobb angle and AVH% were both significantly larger in Group A than Group B at the final follow-up (P < 0.05). In terms of clinical outcomes, there were no statistically significant differences in VAS and ODI scores between the two groups (P > 0.05). Conclusion In the short term, both minimally invasive treatments were safe and effective in treating thoracolumbar fracture. Although there was significant difference between the two groups in Cobb angle and vertebral body height at the last follow-up, the difference was small. Therefore, these specific parameters will be an important outcome measure in further investigations. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05069-3.
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Affiliation(s)
- Xiaofeng Shao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Peng Peng
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Peng Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Tian Xu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Zixiang Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Xi Hua
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Xiaoyu Zhu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Zhonglai Qian
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Huilin Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
| | - Haiqing Mao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
| | - Kangwu Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
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Chen X, Han P, Song P, Zhao Y, Zhang H, Niu J, Yu C, Ding W, Zhao J, Zhang L, Qi H, Shao X, Su H, Guo Q. Mediating Effects of Malnutrition on the Relationship between Depressive Symptoms Clusters and Muscle Function Rather than Muscle Mass in Older Hemodialysis Patients. J Nutr Health Aging 2022; 26:461-468. [PMID: 35587758 DOI: 10.1007/s12603-022-1778-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 10/18/2022]
Abstract
OBJECTIVES The purpose of this study was to investigate the association and mediation pathways among muscle mass, muscle function (muscle strength and physical performance), and malnutrition with depressive symptoms clusters in the older hemodialysis patients. DESIGN A multi-center cross-sectional study. SETTING AND PARTICIPANTS A total of 499 patients aged ≥ 60 on hemodialysis from seven facilities in Shanghai of China from 2020 to 2021. MEASUREMENTS Muscle mass was assessed by skeletal muscle index(SMI). Muscle strength was measured by handgrip strength, and physical performance was measured via gait speed and Timed Up and Go Test (TUGT). Nutritional status was assessed by Malnutrition Inflammation Score (MIS). Depressive symptoms were evaluated by the Patient Health Questionnaire-9 (PHQ-9). Logistic regression and mediation analyses fully adjusted for all potential confounding factors. RESULTS Among 499 participants (312 men, mean age 69.2±6.6 years), 108 (21.6%) had depressive symptoms. The muscle strength, physical performance and malnutrition were associated with depressive symptoms. Furthermore, malnutrition significantly mediated the association of muscle function with total, cognitive-affective symptoms. The association of the muscle function with somatic symptoms were mediated by the nutritional status. The mediated proportions of malnutrition in the relationship between physical performance and depressive symptoms clusters were stronger in somatic symptoms than in cognitive-affective symptoms. CONCLUSIONS Our findings suggest that muscle function rather than muscle mass may contribute substantially to the development of depressive symptoms clusters in the hemodialysis via malnutrition. The malnutrition mediated stronger in the association of muscle function with somatic symptoms. These findings may help guide clinicians to better diagnose and manage depression in the context of concomitant muscle function and malnutrition.
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Affiliation(s)
- X Chen
- Qi Guo, M.D., Ph.D. Department of Rehabilitation Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, 1500 Zhouyuan Road, Pudong New District, Shanghai, 201318, China, Phone: 86-22-8333-6977, Fax: 86-22-8333-6977, E-mail:
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Wu T, Wang R, Yan H, Shao X. Adaptive Change Point Monitoring for High-Dimensional Data. Stat Sin 2022. [DOI: 10.5705/ss.202020.0438] [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: 11/06/2022]
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Zhang K, Liu Z, Tang Y, Shao X, Hua X, Liu H, Yang H, Chen K. LncRNA NONHSAT114552 Sponges miR-320d to Promote Proliferation and Invasion of Chordoma Through Upregulating NRP1. Front Pharmacol 2021; 12:773918. [PMID: 34721048 PMCID: PMC8548433 DOI: 10.3389/fphar.2021.773918] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 09/30/2021] [Indexed: 12/02/2022] Open
Abstract
Chordoma is a relatively rare malignant bone tumor with high local recurrence. To date, the mechanism remains unclear. lncRNAs play a pivotal role in tumorigenesis by acting as competitive endogenous RNAs of microRNAs. However, the biological role of lncRNA is still unclear in chordoma. In this research, our aim is to investigate the roles and regulation mechanisms of lncRNA NONHSAT114552 in chordoma development. The expression level of NONHSAT114552 and miR-320d in chordoma tissues was determined by qRT-PCR. Meantime, the correlation between NONHSAT114552 and clinical prognosis was also studied. Bioinformatics analysis and luciferase reporter assays were used to verify the relationship between NONHSAT114552 and miR-320d, and between miR-320d and Neuropilin 1 (NRP1). In addition, effects of NONHSAT114552 on chordoma cells (U-CH1 and U-CH2) proliferation and invasion and its regulation on miR-320d were also evaluated. Furthermore, the influences of NONHSAT114552/miR-320d/NRP1 axis on chordoma tumorigenesis were investigated in vivo. NONHSAT114552 was overexpressed while miR-320d was down-regulated in chordoma tissue compared to fetal nucleus pulposus. Kaplan-Meier survival analysis showed that NONHSAT114552 overexpression was associated with patients’ poor prognosis. Knockdown of NONHSAT114552 significantly suppressed chordoma cell proliferation and invasion. In vitro studies confirmed that NONHSAT114552 acted as ceRNA to regulate NRP1 by directly sponging miR-320d, thus facilitating chordoma cell proliferation and invasion. In vivo study demonstrated that NONHSAT114552 moderated chordoma growth by sponging miR-320d to regulating NRP1. Our findings indicate that lncRNA NONHSAT114552 exhibits a critical role in the tumorigenesis and development of chordoma and it may become one potential prognostic marker and therapeutic target for this disease. .
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Affiliation(s)
- Kai Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zixiang Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yingchuang Tang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaofeng Shao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xi Hua
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Hao Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huilin Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Kangwu Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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Zhang H, Gan L, Li X, Shao X, Zuo L, Gao J, Huang X, Jia X, Liang J, Hou Z, Wang Y, Wang L, Gao Z, Wang J, Chen H. The Implementation of Patient-Centered Humanistic Care for COVID-19 Closely Contacted Hemodialysis Patients Under the Hospital-Based Group Medical Quarantine: A Brief Research Report. Front Psychol 2021; 12:553234. [PMID: 34690846 PMCID: PMC8531721 DOI: 10.3389/fpsyg.2021.553234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 08/31/2021] [Indexed: 11/13/2022] Open
Abstract
In February 2020, an inpatient in Peking University People's Hospital (PKUPH), China, was confirmed positive for the novel coronavirus. In this case, 143 hemodialysis patients were labeled as close contacts and required to be placed under the hospital-based group medical quarantine (HB-GMQ) for 2 weeks by the authorities. After the case was reported, false or misleading information about the case flourished on social media platforms, which led to infodemic. Under this context, PKUPH adopted patient-centered humanistic care to implement the HB-GMQ, through the synergy of administrative, healthcare, logistical, and other measures under the model of patient-centered care of the Massachusetts Medical Society (MMS). As a result, all the patients tided over the HB-GMQ with no COVID-19 infection and no unanticipated adverse events, and all met the criteria for lifting the HB-GMQ. According to the questionnaires taken during the HB-GMQ, a high level of satisfaction was found among the quarantined and no symptomatic increase of anxiety and depression in the patients before and during the HB-GMQ, by comparing the Zung self-rating anxiety scale (SAS) and self-rating depression scale (SDS) conducted in December 2019 and on the 12th day of the HB-GMQ. This article is to brief on PKUPH's experience in implementing patient-centered humanistic care tailored to hemodialysis patients under the HB-GMQ, and to validate the hypothesis that patient-centered humanistic care is effective and helpful to help them tide over the HB-GMQ, so as to shed light on how to implement the HB-GMQ and cope with the HB-GMQ-induced problems in other hospitals.
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Affiliation(s)
- He Zhang
- Administration Office, Peking University People's Hospital, Beijing, China.,School of International Studies, Renmin University of China, Beijing, China
| | - Liangying Gan
- Department of Nephrology, Peking University People's Hospital, Beijing, China
| | - Xiaodan Li
- Department of Nursing, Peking University People's Hospital, Beijing, China
| | - Xiaofeng Shao
- Department of Publicity, Peking University People's Hospital, Beijing, China
| | - Li Zuo
- Department of Nephrology, Peking University People's Hospital, Beijing, China
| | - Jie Gao
- Department of Hepatobiliary Surgery, Peking University People's Hospital, Beijing, China
| | - Xiaobo Huang
- Urology and Lithotripsy Center, Peking University People's Hospital, Beijing, China
| | - Xiaojun Jia
- Urology and Lithotripsy Center, Peking University People's Hospital, Beijing, China
| | - Junqing Liang
- Department of Nephrology, Peking University People's Hospital, Beijing, China
| | - Zhihua Hou
- Department of General Affairs, Peking University People's Hospital, Beijing, China
| | - Yanhua Wang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Lei Wang
- Department of Nephrology, Peking University People's Hospital, Beijing, China
| | - Zhancheng Gao
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing, China
| | - Jianliu Wang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China
| | - Hongsong Chen
- Peking University People's Hospital, Beijing, China.,Peking University Hepatology Institute, Beijing, China
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Zhang K, Liu Z, Wang Z, Zhou Z, Shao X, Hua X, Mao H, Yang H, Ren K, Chen K. Long Non-Coding RNA MDFIC-7 Promotes Chordoma Progression Through Modulating the miR-525-5p/ARF6 Axis. Front Oncol 2021; 11:743718. [PMID: 34621682 PMCID: PMC8491581 DOI: 10.3389/fonc.2021.743718] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/06/2021] [Indexed: 12/13/2022] Open
Abstract
Background Chordoma, an extremely rare malignant tumor, remains difficult to be cured because of its strong local invasiveness and high recurrence rate. Long non-coding RNAs (lncRNAs) have been demonstrated to play multiple roles in various cancers. The purpose of this study was to investigate the modulatory function of lncRNA MDFIC-7 in chordoma and to elucidate its underlying mechanisms. Methods Quantitative real-time polymerase chain reaction was performed to detect the expression of lncRNA MDFIC-7 in tumor tissues and adjacent nontumorous tissues collected from 15 chordoma patients, as well as in chordoma cell lines. Gene silencing and overexpression experiments were carried out by RNA interference and lentiviral transduction. The effect of lncRNA MDFIC-7 on the proliferation of chordoma cells was evaluated by cell counting kit-8 assay, colony formation assay and xenograft tumor experiments. RNA immunoprecipitation and dual luciferase reporter assays were conducted to evaluate the binding between lncRNA MDFIC-7 and miRNA-525-5p and the interaction between miR-525-5p and the 3′ untranslated region of ADP-ribosylation factor 6 (ARF6) mRNA. The glycolytic capacity and mitochondrial function of chordoma cells were measured by the Seahorse Bioscience XF96 Extracellular Flux Analyzer. Results The expression of lncRNA MDFIC-7 was higher in chordoma tumor tissues than in adjacent non-tumor tissues. Downregulation of lncRNA MDFIC-7 reduced colony formation and cell proliferation in chordoma cells and decreased xenograft tumor growth in a nude mouse model. Moreover, lncRNA MDFIC-7 knockdown attenuated the Warburg effect in chordoma cells and xenograft tumors. LncRNA MDFIC-7 knockdown elevated miR-525-5p levels and decreased ARF6 expressions. Overexpression of ARF6 reversed the inhibitory effect of lncRNA MDFIC-7 knockdown on cell proliferation and the Warburg effect in chordoma cells and xenograft tumors. Mechanistically, lncRNA MDFIC-7, as a molecular sponge of miR-525-5p, negatively regulated miR-525-5p expression and promoted the gene expression of ARF6, a miR-525-5p target. Conclusion Our findings demonstrate that lncRNA MDFIC-7 acts as a molecular sponge to competitively bind to miR-525-5p and promote expression of ARF6. The lncRNA MDFIC-7/miR-525-5p/ARF6 axis regulates chordoma progression and the Warburg effect in chordoma, suggesting that lncRNA MDFIC-7 and miR-525-5p could be promising therapeutic targets for the treatment of chordoma.
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Affiliation(s)
- Kai Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zixiang Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhidong Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhangzhe Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaofeng Shao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xi Hua
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Haiqing Mao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huilin Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ke Ren
- Collaborative Innovation Center of Sichuan for Elderly Care and Health, Chengdu Medical College, Chengdu, China.,School of Laboratory Medicine/Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-Origin Food, Chengdu Medical College, Chengdu, China
| | - Kangwu Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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Niknafs N, Forde P, Lanis M, Belcaid Z, Smith K, Sun Z, Balan A, White J, Cherry C, Shivakumar A, Shao X, Kindler H, Purcell T, Santana-Davila R, Dudek A, Borghaei H, Illei P, Velculescu V, Karchin R, Brahmer J, Ramalingam S, Anagnostou V. OA12.01 Genomic and Immune Cell Landscape of Response to Chemo-Immunotherapy in Malignant Pleural Mesothelioma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.072] [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: 11/17/2022]
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He S, Zhou Z, Lv N, Shao X, Zhou X, Wang Y, Wu S, Chen K, Zhou L, Qian Z. Comparison of Clinical Outcomes Following Anterior Cervical Discectomy and Fusion with Zero-Profile Anchored Spacer-ROI-C-Fixation and Combined Intervertebral Cage and Anterior Cervical Discectomy and Fusion: A Retrospective Study from a Single Center. Med Sci Monit 2021; 27:e931050. [PMID: 34392301 PMCID: PMC8375325 DOI: 10.12659/msm.931050] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background The aim of this study was to compare the outcomes following anterior cervical discectomy and fusion with zero-profile anchored spacer-ROI-C-fixation (ROI-C) vs combined intervertebral cage and anterior cervical discectomy and fusion (ACDF). Material/Methods We retrospectively analyzed 87 patients who underwent operations between January 2015 and January 2019, including 42 patients that underwent ROI-C treatment (group A) and 45 that were treated by the ACDF approach (group B). Operative duration, blood loss, dysphagia, Neck Disability Index scores (NDI), Japanese Orthopaedic Association scores (JOA), and other complications were compared between these groups. In addition, implant settlement, fusion, and cervical Cobb angle were assessed via imaging analyses. Results Patients in group A and group B were followed for 22.6±3.3 months and 27.1±3.5 months, respectively (range: 13–30 months). Relative to preoperative values, JOA scores were increased and NDI scores were reduced in both groups following treatment (P<0.05), with comparable outcomes between groups (P>0.05). However, operative duration, intraoperative blood loss, and postoperative complications did differ significantly between these groups (P<0.05). Specifically, rates of short-term dysphagia were lower and recovery time was faster in group A relative to group B (P<0.05). Conclusions The findings from this study showed that ROI-C fixation achieved satisfactory outcomes, improved cervical curvature, restored intervertebral height, and was associated with shorter operative duration, reduced blood loss, and less dysphagia.
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Affiliation(s)
- Shuangjun He
- Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Danyang, Jiangsu, China (mainland).,Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
| | - Zhangzhe Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
| | - Nanning Lv
- Department of Orthopedic Surgery, The Second People's Hospital of Lianyungang, Lianyungang, Jiangsu, China (mainland)
| | - Xiaofeng Shao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
| | - Xinfeng Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
| | - Yaowei Wang
- Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Danyang, Jiangsu, China (mainland)
| | - Shuhua Wu
- Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Danyang, Jiangsu, China (mainland)
| | - Kangwu Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
| | - Lijian Zhou
- Department of Orthopedic Surgery, Affiliated Danyang Hospital of Nantong University, The People's Hospital of Danyang, Danyang, Jiangsu, China (mainland)
| | - Zhonglai Qian
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
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Affiliation(s)
- Feiyu Jiang
- Department of Statistics School of ManagementFudan University Shanghai China
| | - Zifeng Zhao
- Department of Information Technology, Analytics, and Operations Mendoza College of BusinessUniversity of Notre Dame Notre Dame Indiana USA
| | - Xiaofeng Shao
- Department of Statistics University of Illinois at Urbana‐Champaign Champaign Illinois USA
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Affiliation(s)
- Changbo Zhu
- Department of Statistics, University of Illinois at Urbana-Champaign, Champaign, IL, 61820, USA
| | - Xiaofeng Shao
- Department of Statistics, University of Illinois at Urbana-Champaign, Champaign, IL, 61820, USA
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36
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Zhang Y, Wang R, Shao X. Adaptive Inference for Change Points in High-Dimensional Data. J Am Stat Assoc 2021. [DOI: 10.1080/01621459.2021.1884562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Yangfan Zhang
- Department of Statistics, University of Illinois at Urbana-Champaign, Champaign, IL
| | - Runmin Wang
- Department of Statistical Science, Southern Methodist University, Dallas, TX
| | - Xiaofeng Shao
- Department of Statistics, University of Illinois at Urbana-Champaign, Champaign, IL
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Shen Q, Liu C, Zhang X, Yu Y, Huang X, Shao X, Zhang C. A vascularized bone graft harvested from the dorsal base of the third metacarpal bone for the treatment of scaphoid nonunion. Hand Surg Rehabil 2021; 40:439-447. [PMID: 33839334 DOI: 10.1016/j.hansur.2021.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/10/2021] [Accepted: 03/31/2021] [Indexed: 11/19/2022]
Abstract
The purpose of this retrospective study was to introduce the use of an alternative vascularized bone graft for treating scaphoid non-union. The vascularized bone graft was harvested from the dorsal base of the third metacarpal bone. From May 2014 to September 2017, 29 patients with scaphoid non-union were treated. Grip and pinch strengths were compared to the contralateral side. The patients rated wrist joint pain on a visual analogue scale. Wrist function was assessed on Mayo Wrist Score. p < 0.05 was considered statistically significant. 18 scaphoids healed at 6 weeks and the other 11 at 16 weeks. Follow-up ranged from 28 to 73 months, for a mean 48 months. At final follow-up, mean wrist flexion had improved from 65° (range, 51°-81°) preoperatively to 72° (range, 61-78°) (p > 0.05), for a contralateral value of 74° (range, 65°-86°). Mean extension had improved from 56° (range, 44°-72°) to 60° (range, 47°-76°) (p > 0.05) for a contralateral value of 66° (range, 52°-80°). Mean wrist pain improved from 4 (range, 3-8) to 2 (range, 0-4) (p < 0.05). Mean pinch strength improved from 6.4 kg (range, 5.2-7.3 kg) to 8.6 kg (6.1-9.9 kg) (p < 0.05). Mayo Wrist Score improved from 49 (range, 10-65) to 92 (range, 70-100) (p < 0.05). Transferring a vascularized bone graft harvested from the base of the third metacarpal bone was an effective alternative for the treatment of scaphoid non-union, achieving bone healing and normal wrist function without significant donor-site morbidity. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.
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Affiliation(s)
- Q Shen
- Department of Hand and Foot Surgery, Armed Police Corps Hospital of Hebei, Xinhuaxi Road 130, Shijiazhuang, Hebei, 050051, China.
| | - C Liu
- Department of Hand and Foot Surgery, Armed Police Corps Hospital of Hebei, Xinhuaxi Road 130, Shijiazhuang, Hebei, 050051, China.
| | - X Zhang
- Department of Hand Surgery, Third Hospital of Hebei Medical University, Zhiqiang Road 139, Shijiazhuang, Hebei, 050051, China.
| | - Y Yu
- Department of Hand Surgery, Third Hospital of Hebei Medical University, Zhiqiang Road 139, Shijiazhuang, Hebei, 050051, China.
| | - X Huang
- The People's Hospital of Zhangqiu, Mingshuihuiquan Road 1920, Zhangqiu, Shandong, 250200, China.
| | - X Shao
- Department of Hand Surgery, Third Hospital of Hebei Medical University, Zhiqiang Road 139, Shijiazhuang, Hebei, 050051, China.
| | - C Zhang
- Department of Hand Surgery, Third Hospital of Hebei Medical University, Zhiqiang Road 139, Shijiazhuang, Hebei, 050051, China
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Wang B, Zhang K, Meng S, Shao X, Zhou Z, Mao H, Zhu Z, Chen H, Yang H, Chen K. LncRNA-NONHSAT024778 promote the proliferation and invasion of chordoma cell by regulating miR-1290/Robo1 axis. Int J Biol Sci 2021; 17:796-806. [PMID: 33767589 PMCID: PMC7975704 DOI: 10.7150/ijbs.54091] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 01/07/2021] [Indexed: 12/12/2022] Open
Abstract
Chordoma is a malignant bone tumor originating from the embryonic remnants of the notochord. lncRNAs act as competing endogenous RNAs (ceRNAs) and play a critical role in tumor pathology. However, the biological role of lncRNA-NONHSAT024778 and the underlying molecular mechanism in chordoma remains unknown. qRT-PCR was used to analyze the expression changes of NONHSAT024778 and miR-1290 in chordoma tissues and cell lines. Bioinformatics analysis and luciferase reporter assay were applied to detect the targeting binding effect between NONHSAT024778 and miR-1290, and between Robo1 and miR-1290. The effect of NONHSAT024778 on chordoma cell proliferation and invasion and its regulation of miR-1290 by acting as a ceRNA were also investigated. An increased NONHSAT024778 expression was correlated with a decreased miR-1290 level in chordoma tissues. NONHSAT024778 knockdown suppressed the proliferation and invasion of chordoma cells. miR-1290 restored expression rescued the carcinogenic function of NONHSAT024778. Bioinformatics analysis showed that NONHSAT024778 acted as ceRNA to regulate Robo1 via sponging miR-1290 in chordoma cells, thereby promoting chordoma cell malignant progression. In vivo results confirmed the anti-tumor effects of NONHSAT024778 knockdown activating miR-1290 to inhibit the oncogene Robo1. NONHSAT024778 is substantially overexpressed, whereas miR-1290 is decreased in chordoma tissue. NONHSAT024778-miR-1290-Robo1 axis plays a critical role in chordoma tumorigenesis and might be a potential predictive biomarker for the diagnosis and therapeutic target among patients with chordoma.
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Affiliation(s)
- Bin Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Kai Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Sen Meng
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiaofeng Shao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Zhangzhe Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Haiqing Mao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Ziqiang Zhu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hao Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Huilin Yang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Kangwu Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
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Li R, Shao X, Li X, Liu Y, Jiang W. Comparison of clinical outcomes and spino-pelvic sagittal balance in degenerative lumbar spondylolisthesis: Minimally invasive oblique lumbar interbody fusion (OLIF) versus transforaminal lumbar interbody fusion (TLIF). Medicine (Baltimore) 2021; 100:e23783. [PMID: 33545942 PMCID: PMC7837863 DOI: 10.1097/md.0000000000023783] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 11/15/2020] [Indexed: 01/03/2023] Open
Abstract
Spino-pelvic sagittal parameters are closely related to the lumbar degenerative diseases. The present study aims to compare clinical results and spino-pelvic sagittal balance treated with oblique lumbar interbody fusion (OLIF) and transforaminal lumbar interbody fusion (TLIF) in patients with degenerative lumbar spondylolisthesis at single segment.We retrospectively reviewed and compared 28 patients who underwent OLIF (OLIF group) and 35 who underwent TLIF (TLIF group). Radiological results were evaluated with disc height (DH), foraminal height (FH), fused segment lordosis (FSL), lumbar lordosis (LL), pelvic tilt (PT), pelvic incidence (PI), and sacral slope (SS). Clinical results were evaluated with the Oswestry Disability Index (ODI) and VAS for back and leg pain.The OLIF group showed higher improvement of DH and FH than the TLIF group at all time points after surgery (P < .05). No significant differences were found in PT, PI, and SS between the 2 groups (P > .05). Significant restoration of spino-pelvic sagittal balance was observed in the 2 groups after surgery. Significant differences in postoperative lumbar lordosis and fused segment lordosis were found between the 2 groups (P < .05). Significant difference in the improvement of symptoms was observed between the 2 groups. The OLIF group had lower VAS scores for back pain and ODI compared after surgery (P < .05).It can be concluded that there are exactly differences in improvement of radiographic parameters between 2 approaches, which confirmed that OLIF is better in restoring spinal alignment. Besides, due to the unique minimally invasive approach, OLIF did exhibit a greater advantage in early recovery after surgery.
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Li J, Shao X, Ji Z. Comment to: "Outcomes of concomitant mesh placement and intestinal procedures during open ventral hernia repair". Hernia 2021; 26:367-368. [PMID: 33433740 DOI: 10.1007/s10029-020-02368-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 12/31/2020] [Indexed: 11/29/2022]
Affiliation(s)
- J Li
- Department of General Surgery, Affiliated Zhongda Hospital, Southeast University, Nanjing, 210009, China.
| | - X Shao
- Department of General Surgery, Affiliated Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - Z Ji
- Department of General Surgery, Affiliated Zhongda Hospital, Southeast University, Nanjing, 210009, China
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Shao X, Kong WX, Li YT. MiR-133 inhibits kidney injury in rats with diabetic nephropathy via MAPK/ERK pathway. Eur Rev Med Pharmacol Sci 2020; 23:10957-10963. [PMID: 31858564 DOI: 10.26355/eurrev_201912_19799] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to explore the effect of micro ribonucleic acid (miR)-133 on kidney injury in rats with diabetic nephropathy (DN) through the mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) pathway. MATERIALS AND METHODS The model of DN was first established in rats. Blood glucose, renal index, urinary micro-albumin (UMA), and creatinine clearance rate (CCr) were detected. Meanwhile, the protein expression levels of miR-133, kidney injury molecule-1 (KIM-1) and anti-inflammatory cytokine interleukin-8 (IL-8) were measured using Western blotting. Human renal proximal tubular epithelial cell line human kidney-2 (HK-2) was treated with high glucose to simulate DN cells in vivo. Subsequently, Western blotting was performed to detect the protein expression of KIM-1. After HK-2 cells were treated with high glucose and silenced miR-133 for 24 h, the expression changes in KIM-1 was evaluated. RESULTS In DN group, blood glucose, renal index, UMA, and CCr were all markedly higher than those of control group. This indicated the successful establishment of DN model in rats. The expression level of miR-133 was significantly up-regulated in DN model rats. Meanwhile, the downstream protein phosphorylated-EPK (p-EPK) showed a significantly increasing trend as well. Additionally, the protein expressions of KIM-1 and IL-8 were notably elevated. High-glucose-treated HK-2 cells showed significantly up-regulated expression levels of miR-133, KIM-1, and IL-8. After 24 h of combined treatment with high glucose and miR-133 silence, the expressions of KIM-1 and IL-8 were markedly down-regulated. CONCLUSIONS MiR-133 may be related to the occurrence and development of DN. The silence of miR-133 inhibits kidney injury in DN via the MAPK/ERK signaling pathway. Our findings suggest that miR-133 may be an effective target for the treatment of DN.
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Affiliation(s)
- X Shao
- Department of Nephrology, Suzhou Kowloon Hospital, Medical School of Shanghai Jiaotong University, Suzhou, China.
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Shao X, Bevilacqua G, Ciarletta P, Saylor JR, Bostwick JB. Experimental observation of Faraday waves in soft gels. Phys Rev E 2020; 102:060602. [PMID: 33466108 DOI: 10.1103/physreve.102.060602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/04/2020] [Indexed: 11/07/2022]
Abstract
We report the experimental observation of Faraday waves on soft gels. These were obtained using agarose in a mechanically vibrated cylindrical container. Low driving frequencies induce subharmonic standing waves with spatial structure that conforms to the geometry of the container. We report the experimental observation of the first 15 resonant Faraday wave modes that can be defined by the mode number (n,ℓ) pair. We also characterize the shape of the instability tongue and show the complex dependence upon material properties can be understood as an elastocapillary effect.
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Affiliation(s)
- X Shao
- Department of Mechanical Engineering, Clemson University, Clemson, 29634 South Carolina, USA
| | - G Bevilacqua
- MOX, Dipartimento di Matematica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, Italy
| | - P Ciarletta
- MOX, Dipartimento di Matematica, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, Italy
| | - J R Saylor
- Department of Mechanical Engineering, Clemson University, Clemson, 29634 South Carolina, USA
| | - J B Bostwick
- Department of Mechanical Engineering, Clemson University, Clemson, 29634 South Carolina, USA
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Cai L, Li H, Guo J, Zhao W, Li Y, Duan Y, Hou X, Cheng L, Du H, Shao X, Diao Z, Hao Y, Li C. 176P Effect of adjuvant lenvatinib (LEN) on tumour recurrence in patients with hepatocellular carcinoma (HCC) and high residual alpha-fetoprotein (AFP) following resection or ablation: A single-center, retrospective study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.197] [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: 10/22/2022] Open
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Shi H, Shao X, Hong Y. Association between cigarette smoking and the susceptibility of acute myeloid leukemia: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2020; 23:10049-10057. [PMID: 31799675 DOI: 10.26355/eurrev_201911_19572] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To elucidate the association between cigarette smoking and the susceptibility of acute myeloid leukemia (AML). MATERIALS AND METHODS We searched relevant articles from PubMed, Embase, and Cochrane by 1st December, 2018. This meta-analysis included 20 case-control studies, involving 7,538 AML patients and 137,924 healthy controls. Studies reported OR and 95%CI of the correlation between cigarette smoking and AML susceptibility were eligible. Subsequently, the included data were weighted by an inverse variance and analyzed using fixed-effects or random-effects model. Subgroup analysis was conducted based on ethnicities and sources of controls. Heterogeneity test was applied for the included articles. Data analyses were conducted using STATA 12.0. RESULTS Current smokers (OR=1.42, 95%CI= 1.28-1.57; p=0.392) and ever-smokers (OR=1.16, 95%CI=1.05-1.28; p=0.036) were associated with AML susceptibility. In the subgroup analysis by ethnicity, only current smokers (OR=1.45, 95%CI=1.29-1.63; p=0.371) and ever-smokers (OR=1.16, 95%CI=1.03-1.30; p=0.034) of the Caucasian population were associated with AML susceptibility. Stratified analysis based on SOC (source of controls) indicated increased susceptibility of AML in current smokers (OR=1.43, 95%CI=1.26-1.63; p=0.283) and ever-smokers (OR=1.20, 95%CI=1.07-1.35; p=0.078) of the population-based group. Nevertheless, only current smokers in the hospital-based group had increased susceptibility of AML (OR=1.45, 95%CI=1.19-1.76; p=0.198). The risks of AML in ever-smokers (OR=1.04, 95%CI = 0.81-1.35; p=0.054) of the hospital-based group did not remarkably changed. CONCLUSIONS In this meta-analysis, we confirmed the association between cigarette smoking and onset risk of AML, especially in the Caucasian population. High-quality, large-scale researches are required to be conducted in multi-center hospitals for verification.
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Affiliation(s)
- H Shi
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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47
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Hui TH, Shao X, Au DW, Cho WC, Lin Y. Detection of the mesenchymal-to-epithelial transition of invasive non-small cell lung cancer cells by their membrane undulation spectra. RSC Adv 2020; 10:29999-30006. [PMID: 35518210 PMCID: PMC9056320 DOI: 10.1039/d0ra06255c] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 08/07/2020] [Indexed: 11/21/2022] Open
Abstract
A cancer cell changes its state from being epithelial- to mesenchymal-like in a dynamic manner during tumor progression. For example, it is well known that mesenchymal-to-epithelial transition (MET) is essential for cancer cells to regain the capability of seeding on and then invading secondary/tertiary regions. However, there is no fast yet reliable method for detecting this transition. Here, we showed that membrane undulation of invasive cancer cells could be used as a novel marker for MET detection, both in invasive model cell lines and repopulated circulating tumor cells (rCTCs) from non-small cell lung cancer (NSCLC) patients. Specifically, using atomic force microscopy (AFM), it was found that the surface oscillation spectra of different cancer cells, after undergoing MET, all exhibited two distinct peaks from 0.001 to 0.007 Hz that are absent in the spectra before MET. In addition, by adopting the long short-term memory (LSTM) based recurrent neural network learning algorithm, we showed that the positions of recorded membrane undulation peaks can be used to predict the occurrence of MET in invasive NSCLC cells with high accuracy (>90% for model cell lines and >80% for rCTCs when benchmarking against the conventional bio-marker vimentin). These findings demonstrate the potential of our approach in achieving rapid MET detection with a much reduced cell sample size as well as quantifying changes in the mesenchymal level of tumor cells.
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Affiliation(s)
- T H Hui
- Department of Electrical and Electronic Engineering, The University of Hong Kong Hong Kong SAR China.,Department of Mechanical Engineering, The University of Hong Kong Hong Kong SAR China .,HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI) Shenzhen Guangdong China
| | - X Shao
- Department of Mechanical Engineering, The University of Hong Kong Hong Kong SAR China .,HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI) Shenzhen Guangdong China
| | - D W Au
- Department of Clinical Oncology, Queen Elizabeth Hospital Hong Kong SAR China
| | - W C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital Hong Kong SAR China
| | - Y Lin
- Department of Mechanical Engineering, The University of Hong Kong Hong Kong SAR China .,HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI) Shenzhen Guangdong China
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Shao X, Si CZ, Zhen KY, Zhang Z, Wang J, Wang DY, Lei JP, Wan J, Xie WM, Zhai ZG, Wang C. [Risk factors and clinical features of hospital-associated venous thromboembolism]. Zhonghua Yi Xue Za Zhi 2020; 100:1539-1543. [PMID: 32450641 DOI: 10.3760/cma.j.cn112137-20200223-00407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical features and risk factors of hospital-associated venous thromboembolism (VTE). Methods: The study enrolled acute VTE patients admitted into China-Japan Friendship Hospital from January 1, 2017 to December 31, 2017. The hospital-associated VTE (HA-VTE) group and the community-associated VTE (CA-VTE) group were classified according to whether the VTE occurred during hospitalization or within a 90-day period of admission to hospital (including inpatient with at least two days of hospital stay or a surgical procedure under general or regional anaesthesia). Differences in clinical features, risk factors, and mortality rate were compared between the two groups. Results: A total of 437 patients with acute VTE were analyzed in the study. Among them, 266 patients were HA-VTE, 171 patients were CA-VTE. Patients in the CA-VTE group were more likely to have varicose veins, sedentary, long-distance travel, and patients in the HA-VTE group were more complicated with recent surgery (<1 month), bed rest, active malignant tumor, acute infections, acute cerebral infarction, fracture, central venous catheter (P<0.05). The CA-VTE group had more clinical symptoms such as lower extremity pain, dyspnea, chest pain and chest tightness (P<0.05). HA-VTE patients had less clinical symptoms but were more severe than the CA-VTE patients, with more sudden deaths (0 vs 3.4%, P=0.035). Among HA-VTE patients, 92.8% experienced VTE during hospitalization or within 1 month of the preceding hospital encounter, with a 13-day median time to VTE. The all-cause mortality rate was higher for HA-VTE group than CA-VTE group (8.3% vs 1.2%, P<0.001), and the in-hospital VTE was more common compared to VTE diagnosed post-discharge (12.2% vs 3.4%, P<0.001). Conclusions: More than half events of VTE are related to recent hospitalizations. HA-VTE has different risk factors from CA-VTE, combined with fewer clinical symptoms but higher all-cause mortality rate. More attention about VTE should be paid to hospitalized patients to reduce the incidence of HA-VTE events.
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Affiliation(s)
- X Shao
- China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - C Z Si
- Information Center, China-Japan Friendship Hospital, Beijing 100029, China
| | - K Y Zhen
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China
| | - Z Zhang
- Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Wang
- Department of Pulmonary and Critical Care Medicine Center of Respiratory Medicine, Beijing Hospital, Beijing 100730, China
| | - D Y Wang
- Data and Project Management Unit, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China
| | - J P Lei
- Data and Project Management Unit, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China
| | - J Wan
- Department of Pulmonary and Critical Care Medicine Center of Respiratory Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - W M Xie
- Department of Pulmonary and Critical Care Medicine Center of Respiratory Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - Z G Zhai
- Department of Pulmonary and Critical Care Medicine Center of Respiratory Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - C Wang
- Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Abstract
Summary
Envelopes have been proposed in recent years as a nascent methodology for sufficient dimension reduction and efficient parameter estimation in multivariate linear models. We extend the classical definition of envelopes in Cook et al. (2010) to incorporate a nonlinear conditional mean function and a heteroscedastic error. Given any two random vectors ${X}\in\mathbb{R}^{p}$ and ${Y}\in\mathbb{R}^{r}$, we propose two new model-free envelopes, called the martingale difference divergence envelope and the central mean envelope, and study their relationships to the standard envelope in the context of response reduction in multivariate linear models. The martingale difference divergence envelope effectively captures the nonlinearity in the conditional mean without imposing any parametric structure or requiring any tuning in estimation. Heteroscedasticity, or nonconstant conditional covariance of ${Y}\mid{X}$, is further detected by the central mean envelope based on a slicing scheme for the data. We reveal the nested structure of different envelopes: (i) the central mean envelope contains the martingale difference divergence envelope, with equality when ${Y}\mid{X}$ has a constant conditional covariance; and (ii) the martingale difference divergence envelope contains the standard envelope, with equality when ${Y}\mid{X}$ has a linear conditional mean. We develop an estimation procedure that first obtains the martingale difference divergence envelope and then estimates the additional envelope components in the central mean envelope. We establish consistency in envelope estimation of the martingale difference divergence envelope and central mean envelope without stringent model assumptions. Simulations and real-data analysis demonstrate the advantages of the martingale difference divergence envelope and the central mean envelope over the standard envelope in dimension reduction.
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Affiliation(s)
- X Zhang
- Department of Statistics, Florida State University, 117 N.Woodward Ave., Tallahassee, Florida 32306, U.S.A
| | - C E Lee
- Department of Business Analytics and Statistics, University of Tennessee, Knoxville, 916 Volunteer Blvd, Knoxville, Tennessee 37996, U.S.A
| | - X Shao
- Department of Statistics, University of Illinois at Urbana Champaign, 725 South Wright St, Champaign, Illinois 61820, U.S.A
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Zhang L, Wang Y, Shao X, Chen J. Open reduction and internal fixation obtains favorable clinical and radiographic outcomes for pediatric mandibular condylar fractures. J Stomatol Oral Maxillofac Surg 2020; 122:18-23. [PMID: 32428602 DOI: 10.1016/j.jormas.2020.05.008] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE Surgery with open reduction internal fixation (ORIF) for pediatric mandibular condylar fractures (MCF) is controversial. This study aims to evaluate the clinical and radiographic outcomes of the children with MCF treated surgically with ORIF. METHODS This retrospective study included 9 children diagnosed with MCF and treated surgically with ORIF. Imaging examinations were performed preoperatively and postoperatively. Patients underwent follow-up clinical observations and objective measurements for over 5 years. RESULTS All children recovered well in facial features, facial nerve functions, occlusions, joint movements, maximal incisal opening, and midline deviation postoperatively. The temporomandibular joint (TMJ) pain and click were found in 2 of 9 (22.2%) cases 1 year after surgery and disappeared 2 years later. Mandibular retrusion was always observed in a child (11.1%) postoperatively. The condylar surface appeared unsmooth in panoramic radiographs of 2 (22.2%) cases. Objective measurements showed that a patent (11.1%) had an opening deflection and a limited laterotrusion at the return visits. SNB angles of all cases were within the normal range 5 years after the operation. CONCLUSION Surgery with ORIF is a relatively safe and effective method for pediatric MCF. The future growth of the mandibular condyle and the long-term TMJ function are lightly influenced in patients postoperatively.
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Affiliation(s)
- L Zhang
- Shanghai Minhang District Dental Clinic, Shanghai, China; Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Y Wang
- Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - X Shao
- Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - J Chen
- Department of Otolaryngology, Head and Neck Surgery, Affiliated Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai, China.
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