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Yang Y, Luo S, Wang W, Gao X, Yao X, Wu T. From bench to bedside: Overview of magnetoencephalography in basic principle, signal processing, source localization and clinical applications. Neuroimage Clin 2024; 42:103608. [PMID: 38653131 PMCID: PMC11059345 DOI: 10.1016/j.nicl.2024.103608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 04/14/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Magnetoencephalography (MEG) is a non-invasive technique that can precisely capture the dynamic spatiotemporal patterns of the brain by measuring the magnetic fields arising from neuronal activity along the order of milliseconds. Observations of brain dynamics have been used in cognitive neuroscience, the diagnosis of neurological diseases, and the brain-computer interface (BCI). In this study, we outline the basic principle, signal processing, and source localization of MEG, and describe its clinical applications for cognitive assessment, the diagnoses of neurological diseases and mental disorders, preoperative evaluation, and the BCI. This review not only provides an overall perspective of MEG, ranging from practical techniques to clinical applications, but also enhances the prevalent understanding of neural mechanisms. The use of MEG is expected to lead to significant breakthroughs in neuroscience.
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Affiliation(s)
- Yanling Yang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China; College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Shichang Luo
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China; College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Wenjie Wang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China; College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Xiumin Gao
- School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Xufeng Yao
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China.
| | - Tao Wu
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
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Rajagopal S, Yao X, Abadir W, Baetz TD, Easson AM, Knight G, McWhirter E, Nessim C, Rosen CF, Sun A, Wright FC, Petrella TM. An Ontario Health (Cancer Care Ontario) Clinical Practice Guideline: Surveillance Strategies in Patients with Stage I, II, III or Resectable IV Melanoma Who Were Treated with Curative Intent. Clin Oncol (R Coll Radiol) 2024; 36:243-253. [PMID: 38336503 DOI: 10.1016/j.clon.2024.01.012] [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: 10/06/2023] [Revised: 12/20/2023] [Accepted: 01/15/2024] [Indexed: 02/12/2024]
Abstract
AIMS To make recommendations on managing the surveillance of patients with stage I, II, III or resectable IV melanoma who are clinically free of disease following treatment with curative intent. MATERIALS AND METHODS This guideline was developed by Ontario Health's (Cancer Care Ontario's) Program in Evidence-Based Care and the Melanoma Disease Site Group (including seven medical oncologists, four surgical oncologists, three dermatologists, one radiation oncologist and one patient representative). The MEDLINE, EMBASE, Cochrane Library, PROSPERO databases and the main relevant guideline websites were searched. Internal and external reviews were conducted, with final approval by the Program in Evidence-Based Care and the Melanoma Disease Site Group. The Grading of Recommendations, Assessment, Development and Evaluation approach was followed, and the Modified Delphi method was used. RESULTS Based on the current evidence (eight eligible original study papers and four relevant guidelines) and the clinical opinions of the authors of this guideline, the initial recommendations were made. To reach 75% agreement for each recommendation, the Melanoma Disease Site Group (16 members) voted twice and one recommendation was voted on three times. After a comprehensive internal and external review process (including national and international reviewers), 12 recommendations, three weak recommendations and six qualified statements were ultimately made. CONCLUSIONS After a systematic review, a comprehensive internal and external review process and a consensus process, the current guideline has been created. The guideline authors believe that this guideline will help clinicians, patients and policymakers make well-informed healthcare decisions that will guide them in clinical melanoma surveillance and ultimately assist in improving patient outcomes.
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Affiliation(s)
- S Rajagopal
- Trillium Health Partners, Credit Valley Hospital, Peel Regional Cancer Centre, Mississauga, Ontario, Canada.
| | - X Yao
- Department of Oncology, Department of Health Research Methods Evidence and Impact, McMaster University, Hamilton, Ontario, Canada; Program in Evidence-Based Care, Ontario Health (Cancer Care Ontario), Hamilton, Ontario, Canada.
| | - W Abadir
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Ontario, Canada
| | - T D Baetz
- Cancer Centre of Southeastern Ontario, Queen's Cancer Research Institute, Kingston, Ontario, Canada
| | - A M Easson
- Department of Surgery, Marvelle Koffler Breast Centre, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - G Knight
- Department of Oncology, Grand River Regional Cancer Centre, Grand River Hospital, Kitchener, Ontario, Canada
| | - E McWhirter
- Department of Medical Oncology, Juravinski Cancer Centre, Hamilton Health Sciences, Hamilton, Ontario, Canada
| | - C Nessim
- Department of Surgery, University of Ottawa, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - C F Rosen
- Division of Dermatology, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - A Sun
- Department of Radiation Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - F C Wright
- Department of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - T M Petrella
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
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Ma Y, Yao X, Chen R, Li R, Shen X, Yu B. Small is Beautiful: Compressing Deep Neural Networks for Partial Domain Adaptation. IEEE Trans Neural Netw Learn Syst 2024; 35:3575-3585. [PMID: 35939474 DOI: 10.1109/tnnls.2022.3194533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Domain adaptation is a promising way to ease the costly data labeling process in the era of deep learning (DL). A practical situation is partial domain adaptation (PDA), where the label space of the target domain is a subset of that in the source domain. Although existing methods yield appealing performance in PDA tasks, it is highly presumable that computation overhead exists in deep PDA models since the target is only a subtask of the original problem. In this work, PDA and model compression are seamlessly integrated into a unified training process. The cross-domain distribution divergence is reduced by minimizing a soft-weighted maximum mean discrepancy (SWMMD), which is differentiable and functions as regularization during network training. We use gradient statistics to compress the overparameterized model to identify and prune redundant channels based on the corresponding scaling factors in batch normalization (BN) layers. The experimental results demonstrate that our method can achieve comparable classification performance to state-of-the-art methods on various PDA tasks, with a significant reduction in model size and computation overhead.
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Yu H, Tiemuer A, Yao X, Zuo M, Wang HY, Liu Y, Chen X. Mitochondria-specific near-infrared photoactivation of peroxynitrite upconversion luminescent nanogenerator for precision cancer gas therapy. Acta Pharm Sin B 2024; 14:378-391. [PMID: 38261812 PMCID: PMC10792980 DOI: 10.1016/j.apsb.2023.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/27/2023] [Accepted: 07/12/2023] [Indexed: 01/25/2024] Open
Abstract
Gas therapy is emerging as a highly promising therapeutic strategy for cancer treatment. However, there are limitations, including the lack of targeted subcellular organelle accuracy and spatiotemporal release precision, associated with gas therapy. In this study, we developed a series of photoactivatable nitric oxide (NO) donors NRh-R-NO (R = Me, Et, Bn, iPr, and Ph) based on an N-nitrosated upconversion luminescent rhodamine scaffold. Under the irradiation of 808 nm light, only NRh-Ph-NO could effectively release NO and NRh-Ph with a significant turn-on frequency upconversion luminescence (FUCL) signal at 740 nm, ascribed to lower N-N bond dissociation energy. We also investigated the involved multistage near-infrared-controlled cascade release of gas therapy, including the NO released from NRh-Ph-NO along with one NRh-Ph molecule generation, the superoxide anion O2⋅- produced by the photodynamic therapy (PDT) effect of NRh-Ph, and highly toxic peroxynitrite anion (ONOO‒) generated from the co-existence of NO and O2⋅-. After mild nano-modification, the nanogenerator (NRh-Ph-NO NPs) empowered with superior biocompatibility could target mitochondria. Under an 808 nm laser irradiation, NRh-Ph-NO NPs could induce NO/ROS to generate RNS, causing a decrease in the mitochondrial membrane potential and initiating apoptosis by caspase-3 activation, which further induced tumor immunogenic cell death (ICD). In vivo therapeutic results of NRh-Ph-NO NPs showed augmented RNS-potentiated gas therapy, demonstrating excellent biocompatibility and effective tumor inhibition guided by real-time FUCL imaging. Collectively, this versatile strategy defines the targeted RNS-mediated cancer therapy.
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Affiliation(s)
- Hui Yu
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Aliya Tiemuer
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xufeng Yao
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Mingyuan Zuo
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Hai-Yan Wang
- School of Mechanical Engineering, Southeast University, Nanjing 211189, China
| | - Yi Liu
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore 119074, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore
- Nanomedicine Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology, and Research (A∗STAR), Proteos, Singapore 138673, Singapore
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Liu Y, He Q, Li Q, Tian M, Li X, Yao X, He D, Deng C. Global incidence and death estimates of chronic kidney disease due to hypertension from 1990 to 2019, an ecological analysis of the global burden of diseases 2019 study. BMC Nephrol 2023; 24:352. [PMID: 38031057 PMCID: PMC10687895 DOI: 10.1186/s12882-023-03391-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND The intricate relationship between hypertension and chronic kidney disease (CKD) presents a global challenge for prevention of hypertension-related CKD. This study's objective is to analyze age, gender, regional disparities, and evolving trends in the disease burden of hypertension-related CKD. We aim to estimate changing spatial and temporal trends in incidence and mortality rates, considering the socio-demographic index (SDI), to inform health strategies effectively. METHOD Age-standardized incidence rates (ASIR) and death rates (ASDR) were collected from the GBD 2019. Trend analysis was conducted by Joinpoint regression of ASRs from 1990 to 2019. Spatial autocorrelation analysis was performed to obtain spatial patterns. The association between SDI and burden of CKD due to hypertension was estimated using a Pearson correlation analysis. RESULTS The global ASIR and ASDR due to hypertension-related CKD were 19.45 (95% CI, 17.85 to 21.09) and 5.88 (95% CI, 4.95 to 6.82) per 100 K population in 2019, representing increases of 17.89% and 13.29% compared to 1990, respectively. The elderly population and males were found the highest ASIR and ASDR. The high SDI region had the highest ASIRs, while low SDI regions experienced the highest ASDRs. Joinpoint regression found both global ASIR and ASDR showed increasing trends, with the highest increases observed in middle- and high-SDI regions, respectively. The SDI exhibited a positive association with ASIRs but displayed an inverse V-shaped correlation with the average annual percentage change (AAPC) of ASIRs. Spatial autocorrelation analysis revel significant positive spatial autocorrelation for the AAPC of ASDRs and ASIRs, from 1990 to 2019. CONCLUSIONS Results met the objectives, and demonstrated a rising global burden of hypertension-related CKD. Factors such as aging, gender, and regional variations should be considered when designing control measures and developing healthcare systems to effectively address the burden of this complex condition.
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Affiliation(s)
- Yan Liu
- Department of Nephrology, Chengdu Second People's Hospital, No. 2 Huatai Road, Chenghua District, 610000, Chengdu, Sichuan Province, China
| | - Qin He
- Department of Nephrology, Chengdu Second People's Hospital, No. 2 Huatai Road, Chenghua District, 610000, Chengdu, Sichuan Province, China
| | - Qiying Li
- Department of Endocrine, The fourth people's hospital of Zi Gong, No. 400, North Dangui Street, Ziliujing District, 643000, Zigong, Sichuan Province, China
| | - Min Tian
- Department of Nephrology, Chengdu Second People's Hospital, No. 2 Huatai Road, Chenghua District, 610000, Chengdu, Sichuan Province, China
| | - Xiaojiao Li
- Department of Endocrine, The fourth people's hospital of Zi Gong, No. 400, North Dangui Street, Ziliujing District, 643000, Zigong, Sichuan Province, China
| | - Xufeng Yao
- Department of Stomatology, Traditional Chinese Medicine Hospital, No. 800 Zhongshan Street, 610000, Lishui City, Zhejiang Province, China.
| | - Dongmei He
- Department of Nephrology, Chengdu Second People's Hospital, No. 2 Huatai Road, Chenghua District, 610000, Chengdu, Sichuan Province, China.
| | - Chunying Deng
- Department of Endocrine, The fourth people's hospital of Zi Gong, No. 400, North Dangui Street, Ziliujing District, 643000, Zigong, Sichuan Province, China.
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Bai J, Yao X, Pu Y, Wang X, Luo X. Capecitabine-based chemotherapy in early-stage triple-negative breast cancer: a meta-analysis. Front Oncol 2023; 13:1245650. [PMID: 37954087 PMCID: PMC10634425 DOI: 10.3389/fonc.2023.1245650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 10/03/2023] [Indexed: 11/14/2023] Open
Abstract
Introduction The efficacy and safety of adjuvant capecitabine in early-stage triple-negative breast cancer remains undefined. A meta-analysis was conducted to elucidate whether capecitabine-based regimens could improve survival in early-stage triple-negative breast cancer (TNBC). Methods The current study searched Medline, Embase, Cochrane Library, Web of Science, and ClinicalTrials.gov proceedings up to 2023.9. Disease-free survival (DFS), overall survival (OS), and grade 3-4 adverse events (AEs) were assessed. Extracted or calculated hazard ratios (HRs) and odds ratios (ORs) with 95% confidence intervals (CIs) were pooled. Results The capecitabine-based regimens showed significant advantages in DFS (HR = 0.81, 95% CI: 0.73-0.90; P <.001) and OS (HR = 0.75, 95% CI: 0.65-0.87; P <.001) from 12 randomized controlled trials (RCTs) with 5,390 unselected participants. Subgroup analysis of DFS showed analogous results derived from patients with lymph node negative (HR = 0.68, 95% CI: 0.50-0.92; P = .006) and capecitabine duration no less than six cycles (HR = 0.73; 95% CI: 0.62-0.86; P <.001). Improvement of DFS in the addition group (HR = 0.77, 95% CI: 0.68-0.87; P <.001) and adjuvant setting (HR = 0.79, 95% CI: 0.70-0.89; P <.001) was observed. As to safety profile, capecitabine was associated with more frequent stomatitis (OR = 5.05, 95% CI: 1.45-17.65, P = .011), diarrhea (OR = 6.11, 95% CI: 2.12-17.56; P =.001), and hand-foot syndrome (OR = 31.82, 95% CI: 3.23-313.65, P = .003). Conclusions Adjuvant capecitabine-based chemotherapy provided superior DFS and OS to early-stage TNBC. The benefits to DFS in selected patients with lymph node negative and the addition and extended duration of capecitabine were demonstrated.
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Affiliation(s)
- Jie Bai
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xufeng Yao
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Head and Neck Surgery, The First Hospital of Jiaxing, Zhejiang, China
| | - Yinghong Pu
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoyi Wang
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xinrong Luo
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Xu BL, Ling SQ, Zhang Y, Liu XC, Luo Y, Yao X. [Study the involvement of Langerin in mediating epicutaneous sensitization of atopic dermatitis-like mouse model]. Zhonghua Yi Xue Za Zhi 2023; 103:3041-3046. [PMID: 37813655 DOI: 10.3760/cma.j.cn112137-20230724-00084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Objective: To explore the role of Langerin in mediating epicutaneous sensitization of atopic dermatitis (AD) in mouse model. Methods: Mice were topically treated with calcipotriol (MC903) plus ovalbumin (OVA) on the ears to establish AD mouse models, and mice were divided into wild-type control group, wild-type AD group, Langerin knockout control group, and Langerin knockout AD group. Changes of lesion were daily observed. Infiltration of inflammatory cells, mRNA expression of Tslp, Il4, Il13, Il17a, and Il22, levels of serum total IgE, OVA-specific IgE (sIgE), OVA sIgG1 and OVA sIgG2a, proportion of regulatory T (Treg) cells in cervical draining lymph nodes were evaluated at the end of model preparation. Results: Skin tumidness and thickness, dermal inflammatory cells infiltration, the mRNA expression levels of Tslp, Il4, Il13, Il17a and Il22 in wild-type AD groups were higher than those in wild-type control groups, with (1.80±0.66, 1.64±0.25, 1.71±0.54, 2.41±0.23, 2.49±0.32) and (0.53±0.45, 0.85±0.29, 0.73±0.50, 0.72±0.25, 0.56±0.29), respectively (all P<0.05). In addition, the levels of serum total IgE, OVA sIgE and OVA sIgG1 in wild-type AD groups were higher than those in wild-type control groups, with [(1 216.00±572.70) ng/ml, (597.00±538.30) ng/ml, 1.59±0.09] and [(24.22±35.04) ng/ml, (20.01±41.71) ng/ml, 1.16±0.03], respectively (all P<0.05). In Langerin knockout mice, compared to wild-type mice, skin erythema, skin tumidness, epidermal thickening, inflammatory cell infiltration were more obvious; the mRNA expression levels of Tslp, Il4, Il13, Il17a and Il22 were upregulated with (8.19±6.44, 2.53±0.69, 2.82±0.73, 3.94±1.32, 3.80±1.43) (all P<0.05); the levels of serum total IgE, OVA sIgE and OVA sIgG1 were significantly increased with (2 508.00±657.10) ng/ml, (1 808.00±470.70) ng/ml, (1.73±0.09) (all P<0.05); the number of CD4+CD25+CD127-Treg cells were decreased significantly with (13.25±0.96)% and (15.31±1.47)%, respectively (P<0.05). Conclusion: Langerin is involved in mediating epicutaneous sensitization of the AD mouse model and plays a negative immunoregulatory role.
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Affiliation(s)
- B L Xu
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - S Q Ling
- Dermatology Hospital, Southern Medical University, Guangzhou 510091, China
| | - Y Zhang
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - X C Liu
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Y Luo
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - X Yao
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
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Feng X, Tang B, Wang P, Kang S, Liao X, Yao X, Wang X, Orlandini LC. Effectiveness of Bladder Filling Control during Online MR-Guided Adaptive Radiotherapy for Rectum Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e725-e726. [PMID: 37786113 DOI: 10.1016/j.ijrobp.2023.06.2238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) MR-guided adaptive radiotherapy (MRgART) treatment sessions at MR-Linac are time-consuming and changes in bladder filling during the session can impact the treatment dosimetry. In this work, we present the procedure implemented in the clinical workflow to stabilize bladder filling during the MR based adaptive radiotherapy sessions and evaluate its effectiveness and the resulting dosimetric impact on the adaptive plan. MATERIALS/METHODS Twenty-five rectum cancer patients treated at 1.5T MR-Linac with a short course radiotherapy (25 Gy in 5 fractions of 5 Gy each) were included in this retrospective study. Patients were treated with the adapt-to-shape workflow consisting of a plan adaptation based on the MRI acquired in each session and optimized on the corresponding MR-based synthetic CT. Considering the significant interval time between the acquisition of the first daily MRI used for plan adaptation, and the beam delivery, a bladder catheter was used to stabilize the bladder filling; the procedure consists of emptying the bladder and refilling it with a well-known amount of physiological solution before each MRI acquisition. Two MRIs were acquired at each session: the first was used for plan adaptation and the second was acquired while approving the adapted plan, to be rigidly registered with the first to ensure the appropriateness of the isodoses on the ongoing delivery treatment. A total of 125 sessions and 250 MRI images and bladder contours were analyzed; for each fraction, the time interval between the first and second MRI and the corresponding bladder volumes were recorded; the consistency of bladder volumes and shapes along each online session was assessed with the dice similarity index (DSC) and Hausdorff distance (HD); the impact on plan dosimetry was evaluated by comparing target and bladder DVH cut off points of the plan on the two different MRI datasets. RESULTS The time interval between the first and second MRI, averaged over the 125 sessions is 39.0 min, range (18.6-75.8) min. The changes in bladder volumes, DSC index, HD, and the differences between the bladder and target DVH cut-off points are shown in the table below. The DSC and HD are comparable to inter-observer variability in manual contour segmentation, with an average DSC of 0.91 and average HD of 2.13 mm; the average differences in bladder and target dosimetry remain under 0.63% and 0.10%, respectively. CONCLUSION The use of a procedure in the clinical workflow of MRgART to stabilize the bladder filling throughout the online session may be helpful to guarantee the accuracy of the ongoing delivered treatment.
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Affiliation(s)
- X Feng
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - B Tang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - P Wang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - S Kang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Liao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Yao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Wang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - L C Orlandini
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
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Yao X, Liu M, Liao X, Yuan K, Li J, Wang X, Orlandini LC. Study on the Clinical Use of a Respiratory Navigator Combined with Breath-Hold for MRI- Guided Liver SBRT. Int J Radiat Oncol Biol Phys 2023; 117:e740-e741. [PMID: 37786151 DOI: 10.1016/j.ijrobp.2023.06.2274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Respiratory movement strongly affects the accuracy of stereotactic body radiation therapy (SBRT) of liver malignancies treated without the use of a respiratory gating system. This study investigates the feasibility and advantages of using a respiratory navigator-guided combined with patient breath-hold for liver SBRT in an adaptive magnetic-resonance guided workflow. MATERIALS/METHODS Clinical datasets of 10 liver cancer patients treated with 1.5T MR-Linac with respiratory navigator-guided SBRT combined with patient breath-hold were retrospectively analyzed. All patients underwent simulation CT with and without contrast, and 4D-CT and 3D-T2w MRI without contrast. Patients received a prescription dose ranging from 36 to 50 Gy in 5 to 8 fractions and followed the adapt to shape (ATS) workflow including contours adjustment and a subsequent MR-based synthetic CT (sCT) calculation on the online MRI acquired. The reference treatment plan was optimized on the expiratory phase of the 4D-CT, and during the online session the contours and the adapted plans were performed using the 3D-T2w navigator MRI of the patient's end-expiratory signal; 2D-T2w real-time monitoring MRI was also used as support for the contour's definition. The radiation therapist instructed the patients to hold their breath at the end of the breathing cycle for the time of the beam on. A total of 59 fractions were analyzed. For each fraction the dosimetric parameters of the target and normal liver of the adaptive and reference plans were compared; particularly the volume, the conformity index (CI) and gradient index (GI) for the target, and V5, V10 and Dmean for the normal liver. T-student statistical analysis was performed; a p-value less than 0.05 was considered statistically significant. RESULTS In the free breathing state, the 3D-T2w navigator MRI images enable a clear visualization of the tumor and its boundaries. The average target CI of the adaptive and reference plans is not significantly different (p = 0.448), while the GI is significantly higher (p = 0.043). Normal liver V10 and Dmean are lower and V5 is slightly increased, but without statistical differences. The mean values and standard deviation of the dosimetric parameters of the reference and adapted plans are shown in the Table below. CONCLUSION The use of a respiratory navigator combined with the breath-hold for MRI- guided liver SBRT allows clear visualization of the tumor, ensures the accuracy of the delivered dose and may be considered an alternative when the respiratory gating system is not available during MRgART sessions.
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Affiliation(s)
- X Yao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - M Liu
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Liao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - K Yuan
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - J Li
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Wang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - L C Orlandini
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
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Yuan K, Liao X, Yao X, Liu M, Xu P, Yin J, Li C, Orlandini LC. Study on Lattice Radiotherapy Treatments (LRT) for Head and Neck Bulky Tumors. Int J Radiat Oncol Biol Phys 2023; 117:e596-e597. [PMID: 37785800 DOI: 10.1016/j.ijrobp.2023.06.1954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Lattice radiotherapy (LRT) exploits various effects of radiation, such as the bystander effect and the abscopal effect, and consists on the administration of high dose fraction in small areas with large tumor masses, helping to solve the problem of treating bulky disease, especially if it is located in a critical anatomical area. The optimization of LRT treatment plans is challenging due to the difficulty to generate spots of high dose within the tumor with consequent high gradient. This study compares the plan dosimetry and delivery time of two delivery techniques VMAT and CyberKnife for LRT treatments of bulky head and neck lesions. MATERIALS/METHODS Six patients with giant head and neck tumors who received LRT at our institution were included in this study. Target and OARs were contoured following international guidelines; to allow easy identification of the desired high gradient zones, an artificial geometrical lattice structure with spherical vertices was arranged inside the target volume (GTV), and the vertices of the lattice representing the high dose boost volumes (GTVboost) were delineated. The GTVboost and GTV were prescribed to receive 12 Gy and 3 Gy, respectively in a single fraction. Separate VMAT and CyberKnife LRT plans were optimized for each patient with lattice vertex of 0.5 diameter and center-to-center distances of 1.5 cm (LRT1.5) and 3 cm (LRT3). The dose heterogeneity was measured as the peak-to-valley dose ratio (PVDR), with the traditional definition being replaced by the D10/D90 ratio, where D10 and D90 represent the doses covering 10% and 90% of the GTV, respectively. For each plan generated, the treatment delivery time, the monitor units (MU), and the PVDR were assessed. Pre-treatment plan verifications were performed with ArcCheck array and Gafchromics film for VMAT and CyberKnife, respectively, using gamma analysis criteria of 3%-3mm. RESULTS The mean PVDR obtained for VMAT LRT plans were 2.0 and 2.6 for LRT1.5 and LRT3, respectively, and 3.2 and 4.7, respectively for CyberKnife LRT plans. For each pre-treatment plan dose verification, the gamma passing rate (GPR) was higher than 95.0 %; CyberKnife delivery time and MU were more than 10 times higher than that of VMAT, nevertheless, VMAT had a lower PVDR. The detailed results are shown in the table below. CONCLUSION CyberKnife LRT has a strong ability to place the peak dose within the target, generating a higher peak-to-valley dose ratio, however its use is partially invalidated by the long beam delivery times and the resulting high MU number; the use of the VMAT LRT technique allows clinically adequate dosimetry with acceptable delivery times.
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Affiliation(s)
- K Yuan
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Liao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Yao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - M Liu
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - P Xu
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - J Yin
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - C Li
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - L C Orlandini
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
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Pei Z, Yao X, Zhao W, Yu B. Quantization via Distillation and Contrastive Learning. IEEE Trans Neural Netw Learn Syst 2023; PP:1-13. [PMID: 37610897 DOI: 10.1109/tnnls.2023.3300309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Quantization is a critical technique employed across various research fields for compressing deep neural networks (DNNs) to facilitate deployment within resource-limited environments. This process necessitates a delicate balance between model size and performance. In this work, we explore knowledge distillation (KD) as a promising approach for improving quantization performance by transferring knowledge from high-precision networks to low-precision counterparts. We specifically investigate feature-level information loss during distillation and emphasize the importance of feature-level network quantization perception. We propose a novel quantization method that combines feature-level distillation and contrastive learning to extract and preserve more valuable information during the quantization process. Furthermore, we utilize the hyperbolic tangent function to estimate gradients with respect to the rounding function, which smoothens the training procedure. Our extensive experimental results demonstrate that the proposed approach achieves competitive model performance with the quantized network compared to its full-precision counterpart, thus validating its efficacy and potential for real-world applications.
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Yao X, Saikawa E, Warner S, D’Souza PE, Ryan PB, Barr DB. Phytoremediation of Lead-Contaminated Soil in the Westside of Atlanta, GA. Geohealth 2023; 7:e2022GH000752. [PMID: 37637997 PMCID: PMC10450253 DOI: 10.1029/2022gh000752] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 06/13/2023] [Accepted: 07/19/2023] [Indexed: 08/29/2023]
Abstract
Phytoremediation has been explored as a cost-effective method to remediate soil Pb contamination. A greenhouse study was conducted to evaluate the efficacy of Vigna unguiculata, Brassica pekinensis, Gomphrena globose, and Helianthus annuus for removing and immobilizing Pb in soil collected from the Westside Lead Superfund site in Atlanta. Plants were cultivated in sampled soil with a Pb concentration of 515 ± 10 mg/kg for 60 days. Soils growing H. annuus were additionally treated with ethylenediaminetetraacetic acid (EDTA) (0.1 g/kg) or compost (20% soil blend) to assess their capabilities for enhancing phytoremediation. Mean post-phytoremediation Pb concentrations in the four plant species were 23.5, 25.7, 50.0, and 58.1 mg/kg dry weight (DW), respectively, and were substantially higher than 1.55 mg/kg DW in respective plant species grown in control soils with no Pb contamination. The highest Pb concentration, translocation factor, and biomass were found in V. unguiculate among four species without soil amendments. H. annuus treated with EDTA and compost resulted in a significant increase in the total Pb uptake and larger biomass compared to non-treated plants, respectively. Although this study found that V. unguiculata was the best candidate for Pb accumulation and immobilization among four species, soil remediation was limited to 54 mg/kg in a growing season. We find that it is critically important to perform phytostabilization in a secure manner, since Pb bioavailability of edible plant parts implies the potential risk associated with their unintentional consumption. Efficiently and effectively remediating Pb-contaminated soils in a low-cost manner needs to be further studied.
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Affiliation(s)
- X. Yao
- Department of Environmental SciencesEmory UniversityAtlantaGAUSA
| | - E. Saikawa
- Department of Environmental SciencesEmory UniversityAtlantaGAUSA
- Gangarosa Department of Environmental HealthEmory UniversityAtlantaGAUSA
| | - S. Warner
- Department of Environmental SciencesEmory UniversityAtlantaGAUSA
| | - P. E. D’Souza
- Gangarosa Department of Environmental HealthEmory UniversityAtlantaGAUSA
| | - P. B. Ryan
- Gangarosa Department of Environmental HealthEmory UniversityAtlantaGAUSA
| | - D. B. Barr
- Gangarosa Department of Environmental HealthEmory UniversityAtlantaGAUSA
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Zhao C, Yuan Z, Luo S, Wang W, Ren Z, Yao X, Wu T. Automatic recognition of cephalometric landmarks via multi-scale sampling strategy. Heliyon 2023; 9:e17459. [PMID: 37416642 PMCID: PMC10320076 DOI: 10.1016/j.heliyon.2023.e17459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 06/08/2023] [Accepted: 06/19/2023] [Indexed: 07/08/2023] Open
Abstract
The identification of head landmarks in cephalometric analysis significantly contributes in the anatomical localization of maxillofacial tissues for orthodontic and orthognathic surgery. However, the existing methods face the limitations of low accuracy and cumbersome identification process. In this pursuit, the present study proposed an automatic target recognition algorithm called Multi-Scale YOLOV3 (MS-YOLOV3) for the detection of cephalometric landmarks. It was characterized by multi-scale sampling strategies for shallow and deep features at varied resolutions, and especially contained the module of spatial pyramid pooling (SPP) for highest resolution. The proposed method was quantitatively and qualitatively compared with the classical YOLOV3 algorithm on the two data sets of public lateral cephalograms, undisclosed anterior-posterior (AP) cephalograms, respectively, for evaluating the performance. The proposed MS-YOLOV3 algorithm showed better robustness with successful detection rates (SDR) of 80.84% within 2 mm, 93.75% within 3 mm, and 98.14% within 4 mm for lateral cephalograms, and 85.75% within 2 mm, 92.87% within 3 mm, and 96.66% within 4 mm for AP cephalograms, respectively. It was concluded that the proposed model could be robustly used to label the cephalometric landmarks on both lateral and AP cephalograms for the clinical application in orthodontic and orthognathic surgery.
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Affiliation(s)
- Congyi Zhao
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Zengbei Yuan
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Shichang Luo
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Wenjie Wang
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Zhe Ren
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Xufeng Yao
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Tao Wu
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
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Ge J, Guo X, Zhao W, Zhang R, Bian Q, Luo L, Linlin X, Yao X. EVALUATION OF PRE-ABLATION NLR AND LMR AS PREDICTORS OF DISTANT METASTASES IN PATIENTS WITH DIFFERENTIATED THYROID CANCER. Acta Endocrinol (Buchar) 2023; 19:215-220. [PMID: 37908873 PMCID: PMC10614579 DOI: 10.4183/aeb.2023.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Objective This research aim was to evaluates the role of the pre-ablation neutrophil-to-lymphocyte ratio (NLR) and lymphocyte-to-monocyte ratio (LMR) as predictors of distant metastases in patients with differentiated thyroid cancer (DTC). Methods A retrospective analysis was given to 140 patients with DTC who received 131I remnant ablation after surgery. The patients were divided into two groups based on the existence of distant metastasis. Results The two groups showed no significant difference in age, gender, WBCs, neutrophils, monocytes, eosinophils, basophils and whether the tumor was multifocal. In the univariate analysis, significant differences were found in tumor size (p=0.021), lymphocyte (p=0.012), NLR (p=0.027), and LMR (p=0.007). According to the ROC curves, NLR had an AUC of 0.612 ± 0.097 with a cut-off value of 1.845, sensitivity of 60.0%, and specificity of 66.2% (p=0.027). LMR had an AUC of 0.638 ± 0.095 with a cut-off value of 4.630, sensitivity of 84.6%, and specificity of 35.4% (p=0.007). In the multivariate analysis, larger tumor size (OR=5.246, 95% CI 1.269-10.907, p=0.009) and higher NLR (OR=2.087, 95% CI 0.977-4.459, p=0.034) were statistically significant for distant metastases. Conclusion This research reveals that pre-ablation NLR and tumor size are significantly statistically correlated with distant metastases in patients with DTC.
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Affiliation(s)
- J. Ge
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Guo
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - W. Zhao
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - R. Zhang
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - Q. Bian
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - L. Luo
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Linlin
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Yao
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
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Han L, Jiang H, Yao X, Ren Z, Qu Z, Yu T, Luo S, Wu T. Revealing the correlations between brain cortical characteristics and susceptibility genes for Alzheimer disease: a cross-sectional study. Quant Imaging Med Surg 2023; 13:2451-2465. [PMID: 37064375 PMCID: PMC10102796 DOI: 10.21037/qims-22-602] [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: 06/14/2022] [Accepted: 02/20/2023] [Indexed: 03/29/2023]
Abstract
Background Alzheimer disease (AD) is a progressive neurodegenerative disease closely related to genes and characterized by the atrophy of the cerebral cortex. Correlations between imaging phenotypes and the susceptibility genes for AD, as demonstrated in the findings of genome-wide association studies (GWASs), still need to be addressed due to the complicated structure of the human cortex. Methods In our study, an improved GWAS method, whole cortex characteristics GWAS (WCC-GWAS), was proposed. The WCC-GWAS uses multiple cortex characteristics of gray-matter volume (GMV), cortical thickness (CT), cortical surface area (CSA), and local gyrification index (LGI). A cohort of 496 participants was enrolled and divided into 4 groups: normal control (NC; n=122), early mild cognitive impairment (EMCI; n=196), late mild cognitive impairment (LMCI; n=62), and AD (n=116). Based on the Desikan-Killiany atlas, the brain was parcellated into 68 brain regions, and the WCC of each brain region was individually calculated. Four cortex characteristics of GMV, CT, CSA, and LGI across the 4 groups optimized with multiple comparisons and the ReliefF algorithm were taken as magnetic resonance imaging (MRI) brain phenotypes. Under the model of multiple linear additive genetic regression, the correlations between the MRI brain phenotypes and single-nucleotide polymorphisms (SNPs) were deduced. Results The findings identified 2 prominent correlations. First, rs7309929 of neuron navigator 3 (NAV3) located on chromosome 12 correlated with the decreased GMV for the left middle temporal gyrus (P=0.0074). Second, rs11250992 of long intergenic non-protein-coding RNA 700 (LINC00700) located on chromosome 10 correlated with the decreased CT for the left supramarginal gyrus (P=0.0019). Conclusions The findings suggested that the correlations between phenotypes and genotypes could be effectively evaluated. The strategy of extracting MRI phenotypes as endophenotypes provided valuable indications in AD GWAS.
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Affiliation(s)
- Liting Han
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Hanni Jiang
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Sports and Health, Shanghai University of Sport, Shanghai, China
| | - Xufeng Yao
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhe Ren
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhongsen Qu
- Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Tonggang Yu
- Shanghai Gamma Knife Hospital, Fudan University, Shanghai, China
| | - Shichang Luo
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Tao Wu
- College of Medical Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
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Huo HM, Yao X, Lai YJ, Lu W, Liu CL, Huang ZH, Wei ZZ, Xie Y. [Analysis of success rate of organoid construction of nasopharyngeal carcinoma by first-day suspension method]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:250-255. [PMID: 36878504 DOI: 10.3760/cma.j.cn115330-20220801-00473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Objective: To investigate the efficacy of the first-day suspension method for improving the success rate of construction of nasopharyngeal carcinoma-patient derived organoids (NPC-PDO). Methods: The tumor samples of 14 nasopharyngeal carcinoma(NPC) patients, i.e.,13 males and 1 female, with a mean age of 43.0±12.0 years old, were collected from the Affiliated Tumor Hospital of Guangxi Medical University and the First Affiliated Hospital of Guangxi Medical University from January 2022 to July 2022. The tumor samples of 3 patients were digested into single cell suspension and divided into 2 groups, for comparing the efficacy of NPC-PDO construction by the direct inoculation method and the first-day suspension method. The remaining 11 patients were randomized to receive either the direct inoculation method or the first-day suspension method for NPC-PDO construction. The diameter and the number of spheres of NPC-PDO constructed by the two methods were compared by optical microscope; the 3D cell viability detection kit was used to compare the cell viability; the survival rates were compared by trypan blue staining; the success rates of the two construction methods were compared; the number of cases which could be successfully passaged for more than 5 generations and were consistent with the original tissue by pathological examination was counted; and the dynamic changes of cells in suspension overnight were observed by live cell workstation. The independent sample t-test was applied to compare the measurement data of the two groups, and the chi-square test was used to compare the classification data. Results: Compared with the direct inoculation, the diameter and the number of spheres of NPC-PDO constructed by the first-day suspension method were increased, with a higher cell activity, and the success rate of construction was obviously improved (80.0% vs 16.7%, χ2=4.41, P<0.05). In the suspension state, some of the cells aggregated and increased their ability to proliferate. Conclusion: The first-day suspension method can improve the success rate of NPC-PDO construction, especially for those whose original tumor sample size is small.
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Affiliation(s)
- H M Huo
- Life Sciences Institute, Guangxi Medical University, Nanning 530021, China
| | - X Yao
- Life Sciences Institute, Guangxi Medical University, Nanning 530021, China Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Nanning 530021, China
| | - Y J Lai
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - W Lu
- Department of Head and Neck Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - C L Liu
- Department of Head and Neck Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Z H Huang
- Department of Head and Neck Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Z Z Wei
- Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Nanning 530021, China Department of Head and Neck Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Y Xie
- Life Sciences Institute, Guangxi Medical University, Nanning 530021, China Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Nanning 530021, China
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Jin Y, Ren Z, Wang W, Zhang Y, Zhou L, Yao X, Wu T. Classification of Alzheimer's disease using robust TabNet neural networks on genetic data. Math Biosci Eng 2023; 20:8358-8374. [PMID: 37161202 DOI: 10.3934/mbe.2023366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases and its onset is significantly associated with genetic factors. Being the capabilities of high specificity and accuracy, genetic testing has been considered as an important technique for AD diagnosis. In this paper, we presented an improved deep learning (DL) algorithm, namely differential genes screening TabNet (DGS-TabNet) for AD binary and multi-class classifications. For performance evaluation, our proposed approach was compared with three novel DLs of multi-layer perceptron (MLP), neural oblivious decision ensembles (NODE), TabNet as well as five classical machine learnings (MLs) including decision tree (DT), random forests (RF), gradient boosting decision tree (GBDT), light gradient boosting machine (LGBM) and support vector machine (SVM) on the public data set of gene expression omnibus (GEO). Moreover, the biological interpretability of global important genetic features implemented for AD classification was revealed by the Kyoto encyclopedia of genes and genomes (KEGG) and gene ontology (GO). The results demonstrated that our proposed DGS-TabNet achieved the best performance with an accuracy of 93.80% for binary classification, and with an accuracy of 88.27% for multi-class classification. Meanwhile, the gene pathway analyses demonstrated that there existed two most important global genetic features of AVIL and NDUFS4 and those obtained 22 feature genes were partially correlated with AD pathogenesis. It was concluded that the proposed DGS-TabNet could be used to detect AD-susceptible genes and the biological interpretability of susceptible genes also revealed the potential possibility of being AD biomarkers.
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Affiliation(s)
- Yu Jin
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhe Ren
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Wenjie Wang
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yulei Zhang
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Liang Zhou
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Xufeng Yao
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Tao Wu
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
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Yang H, Zhao X, Liu J, Jin M, Liu X, Yan J, Yao X, Mao X, Li N, Liang B, Xie W, Zhang K, Zhao J, Liu L, Huang G. TNFα-induced IDH1 hyperacetylation reprograms redox homeostasis and promotes the chemotherapeutic sensitivity. Oncogene 2023; 42:35-48. [PMID: 36352097 DOI: 10.1038/s41388-022-02528-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 11/11/2022]
Abstract
The heterogeneity and drug resistance of colorectal cancer (CRC) often lead to treatment failure. Isocitrate dehydrogenase 1 (IDH1), a rate-limiting enzyme in the tricarboxylic acid cycle, regulates the intracellular redox environment and mediates tumor cell resistance to chemotherapeutic drugs. The aim of this study was to elucidate the mechanism underlying the involvement of IDH1 acetylation in the development of CRC drug resistance under induction of TNFα. We found TNFα disrupted the interaction between SIRT1 and IDH1 and increased the level of acetylation at K115 of IDH1. Hyperacetylation of K115 was accompanied by protein ubiquitination, which increased its susceptibility to degradation compared to IDH1 K115R. TNFα-mediated hyperacetylation of K115 sensitized the CRC cells to 5FU and reduced the NADPH/NADP ratio to that of intracellular ROS. Furthermore, TNFα and 5FU inhibited CRC tumor growth in vivo, while the K115R-expressing tumor tissues developed 5FU resistance. In human CRC tissues, K115 acetylation was positively correlated with TNFα infiltration, and K115 hyperacetylation was associated with favorable prognosis compared to chemotherapy-induced deacetylation. Therefore, TNFα-induced hyperacetylation at the K115 site of IDH1 promotes antitumor redox homeostasis in CRC cells, and can be used as a marker to predict the response of CRC patients to chemotherapy.
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Affiliation(s)
- Hao Yang
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Xiaoping Zhao
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Jianjun Liu
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Mingming Jin
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Xiyu Liu
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Jun Yan
- Department of Oncology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201800, China
| | - Xufeng Yao
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Xinyi Mao
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Nan Li
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Beibei Liang
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Wei Xie
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Kunchi Zhang
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Jian Zhao
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China.
| | - Liu Liu
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Gang Huang
- Shanghai Key Laboratory of Molecular Imaging, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China. .,Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
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19
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Tang Z, Duan J, Sun Y, Zeng Y, Zhang Y, Yao X. A combined deformable model and medical transformer algorithm for medical image segmentation. Med Biol Eng Comput 2023; 61:129-137. [PMID: 36323981 PMCID: PMC9816223 DOI: 10.1007/s11517-022-02702-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 10/19/2022] [Indexed: 01/07/2023]
Abstract
Deep learning-based segmentation models usually require substantial data, and the model usually suffers from poor generalization due to the lack of training data and inefficient network structure. We proposed to combine the deformable model and medical transformer neural network on the image segmentation task to alleviate the aforementioned problems. The proposed method first employs a statistical shape model to generate simulated contours of the target object, and then the thin plate spline is applied to create a realistic texture. Finally, a medical transformer network was constructed to segment three types of medical images, including prostate MR image, heart US image, and tongue color images. The segmentation accuracy of the three tasks achieved 89.97%, 91.90%, and 94.25%, respectively. The experimental results show that the proposed method improves medical image segmentation performance.
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Affiliation(s)
- Zhixian Tang
- grid.507037.60000 0004 1764 1277College of Medical Imaging, Shanghai University of Medicine & Health Sciences, Shanghai, 201318 China ,grid.507037.60000 0004 1764 1277Radiology Department, Shanghai University of Medicine & Health Sciences Affiliated Jiading Hospital, Shanghai, 201800 China
| | - Jintao Duan
- grid.507037.60000 0004 1764 1277College of Medical Instrumentation, Shanghai University of Medicine & Health Sciences, Shanghai, 201318 China
| | - Yanming Sun
- grid.507037.60000 0004 1764 1277College of Medical Instrumentation, Shanghai University of Medicine & Health Sciences, Shanghai, 201318 China
| | - Yanan Zeng
- grid.507037.60000 0004 1764 1277College of Medical Instrumentation, Shanghai University of Medicine & Health Sciences, Shanghai, 201318 China
| | - Yile Zhang
- grid.507037.60000 0004 1764 1277College of Medical Instrumentation, Shanghai University of Medicine & Health Sciences, Shanghai, 201318 China
| | - Xufeng Yao
- grid.507037.60000 0004 1764 1277College of Medical Imaging, Shanghai University of Medicine & Health Sciences, Shanghai, 201318 China
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20
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Zhou L, Dai T, Zhang D, Guo H, Zhou F, Shi B, Wang S, Ji Z, Wang C, Yao X, Wei Q, Chen N, Xing J, Yang J, Kong C, Huang J, Ye D. 152P An epidemiologic study on PD-L1 expression with clinical observation of initial treatment pattern in the Chinese muscle invasive urothelial bladder carcinoma patients. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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21
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Tang Y, Yao X. SYNTHESIS OF A NEW LAYERED Zn(II) COORDINATION POLYMER VIA DUAL-LIGAND STRATEGY: LUMINESCENCE SENSING FOR DETECTION OF Fe3+ ION. J STRUCT CHEM+ 2022. [DOI: 10.1134/s002247662211004x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Li L, Chen Q, Zhang N, Yao X, Wang C. Use of antidepressants following hysterectomy with or without oophorectomy: A national sample in the US. Maturitas 2022; 167:32-38. [DOI: 10.1016/j.maturitas.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 09/11/2022] [Accepted: 09/25/2022] [Indexed: 10/14/2022]
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23
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Liu J, Zhan LY, Yao X, Gao HB, Xie FF, Chang F. [The importance of intranasal trigeminal event-related potentials test for patients with olfactory dysfunction]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:974-979. [PMID: 36058665 DOI: 10.3760/cma.j.cn115330-20220407-00174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the characteristics of trigeminal event-related potentials (tERPs) in different kinds of olfactory disorders (OD), and to evaluate the importance of tERPs for the patients with olfactory dysfunction. Methods: Clinical data of 314 patients with olfactory dysfunction from the Smell and Taste Clinics in Beijing Anzhen Hospital from 2015 to 2021 were retrospectively reviewed, including 158 males and 156 females, aging from 6 to 78 years. The control group consisted of healthy people from medical examination center, who were gender and age matched. The clinical characteristics of OD were analyzed using Sniffin' Sticks test, olfactory event-related potentials (oERPs), tERPs and acoustic rhinometry test. SPSS 17.0 software was used to compare the difference of tERPs between the two groups, and to analyze the related factors affecting trigeminal function. Results: The ratio of tERPs presence was different in OD caused by different reasons: head traumatic OD (54.9%), post-virus infection OD (63.6%), sinonasal inflammatory OD (68.4%) and OD due to other causes (56.9%). Compared with controls, tERPs signals in OD patients showed a significant lower amplitude in the N1 wave (all P<0.001), and lower amplitude in the P2 wave in most OD patients (head trauma t=-4.11, P<0.001; sinonasal inflammation t=-2.04, P=0.046; others t=-2.40, P=0.020) except in OD by post-virus infection (t=-1.98, P=0.052). tERPs signals in OD patients by sinonasal inflammation showed longer latency in the N1 wave (t=2.15, P=0.036), but this difference was not observed in other OD patients (all P>0.05). tERPs signals were significantly correlated with the Sniffin' Sticks score, deficiency of oERPs and nasal minimum cross-sectional area (all P<0.05). Conclusions: OD patients show neurophysiologic deficits in trigeminal function. The absence of tERPs or lower amplitude in N1 waves are the important characteristics of patients with OD.
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Affiliation(s)
- J Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - L Y Zhan
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - X Yao
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - H B Gao
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - F F Xie
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Feifan Chang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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24
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Xia X, Zhang R, Yao X, Huang G, Tang T. A novel lung nodule accurate detection of computerized tomography images based on convolutional neural network and probability graph model. Comput Intell 2022. [DOI: 10.1111/coin.12531] [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: 12/09/2022]
Affiliation(s)
- Xunpeng Xia
- School of Optical‐Electrical and Computer Engineering University of Shanghai for Science and Technology Shanghai China
| | - Rongfu Zhang
- School of Optical‐Electrical and Computer Engineering University of Shanghai for Science and Technology Shanghai China
| | - Xufeng Yao
- College of Medical Imaging Shanghai University of Medicine and Health Sciences Shanghai China
| | - Gang Huang
- College of Medical Imaging Shanghai University of Medicine and Health Sciences Shanghai China
- Shanghai Key Laboratory of Molecular Imaging Zhoupu Hospital, Shanghai University of Medicine and Health Sciences Shanghai China
- Shanghai Key Laboratory of Molecular Imaging Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences Shanghai China
| | - Tiequn Tang
- School of Optical‐Electrical and Computer Engineering University of Shanghai for Science and Technology Shanghai China
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25
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Abstract
The coupling between functional and structural brain networks is difficult to clarify due to the complicated alterations in gray matter and white matter for the development of Alzheimer's disease (AD). A cohort of 112 participants [normal control group (NC, 62 cases), mild cognitive impairment group (MCI, 31 cases) and AD group (19 cases)], was recruited in our study. The brain networks of rsfMRI functional connectivity (rsfMRI-FC) and diffusion tensor imaging structural connectivity (DTI-SC) across the three groups were constructed, and their correlations were evaluated by Pearson's correlation analyses and multiple comparison with Bonferroni correction. Furthermore, the correlations between rsfMRI-SC/DTI-FC coupling and four neuropsychological scores of mini-mental state examination (MMSE), clinical dementia rating-sum of boxes (CDR-SB), functional activities questionnaire (FAQ) and montreal cognitive assessment (MoCA) were inferred by partial correlation analyses, respectively. The results demonstrated that there existed significant correlation between rsfMRI-FC and DTI-SC (p < 0.05), and the coupling of rsfMRI-FC/DTI-SC showed negative correlation with MMSE score (p < 0.05), positive correlations with CDR-SB and FAQ scores (p < 0.05), and no correlation with MoCA score (p > 0.05). It was concluded that there existed FC/SC coupling and varied network characteristics for rsfMRI and DTI, and this would provide the clues to understand the underlying mechanisms of cognitive deficits of AD.
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Affiliation(s)
- Xia Xu
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Song Xu
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Liting Han
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xufeng Yao
- College of Medical Imaging, Jiading District Central Hospital affiliated Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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26
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Li J, Tang B, Liu M, Guo S, Yao X, Liao X, Feng X, Clara Orlandini L. PO-1554 Catching errors by synthetic CT in the clinical workflow of an MR-Linac. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03518-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Ge J, Wang J, Liu H, Wan R, Yao X. 131I SUCCESSFULLY TREATED A CASE OF HYPERTHYROIDISM AFTER ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANTATION. Acta Endocrinol (Buchar) 2022; 18:238-240. [PMID: 36212265 PMCID: PMC9512369 DOI: 10.4183/aeb.2022.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Hematopoietic stem cell transplantation (HSCT) is an effective treatment for various types of hereditary hematologic disease, hematological malignancy, primary immunodeficiency and metabolic disease. Thyroid dysfunction is a common complication of HSCT, which situation is mainly manifested as hypothyroidism and rarely as hyperthyroidism. This report presents a 28-year-old man who developed hyperthyroidism 9 years after sibling allogeneic HSCT, which was most likely caused by chronic GVHD. In the meantime, the patient also suffered from liver dysfunction and pancytopenia, for which he was inappropriate to take antithyroid drugs (ATD) for treatment of hyperthyroidism. The patient was orally administered 259 MBq 131I, an individualized dose. The symptoms of hyperthyroidism were mitigated by 131I treatment.
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Affiliation(s)
- J. Ge
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Department of Nuclear Medicine, Hefei, China
| | - J. Wang
- Jackson Memorial Hospital, University of Miami Miller School of Medicine - Division of Nuclear Medicine, Department of Radiology, Miami, United States
| | - H. Liu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Department of Hematology, Hefei, China
| | - R. Wan
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Department of Nuclear Medicine, Hefei, China
| | - X. Yao
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Department of Nuclear Medicine, Hefei, China
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28
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Guo C, Li M, Chen Y, Xu X, Liu C, Chu J, Yao X. Seed bulb size influences the effects of exogenous brassinolide on yield and quality of Pinellia ternata. Plant Biol (Stuttg) 2022; 24:117-126. [PMID: 34693612 DOI: 10.1111/plb.13314] [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: 05/25/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
In recent years, natural Pinellia ternata populations of have gradually been exhausted, while the cultivated yield has been limited due to lack of research and uncertain climate condition. Therefore, it is necessary to explore methods of improving yield and quality in P. ternata using brassinolide (BR) treatments and choice of a suitable seed bulb size. This article reports the effects of BR and two seed bulb sizes (diameter: 0.5-1.0 cm and 1.0-1.5 cm) on active and nutrient components and antioxidant activity in P. ternata. The experiment included six levels of BR (0, 0.05, 0.10, 0.50, 1.00 and 2.00 mg l-1 ). The tuber yield of the two seed bulb sizes and bulbil yield of small seed bulbs increased 5.67%, 22.66% and 69.23% by day 105 after 0.50 mg l-1 BR treatment, compared with the control. On day 105, only 0.05 mg l-1 BR increased scores in principal components analysis (PCA) in tubers of small seed bulbs by 167.29%, and 0.05 and 0.50 mg l-1 BR increased PCA score in bulbils of large seed bulbs by 145.66% and 252.97%, respectively, compared with the control. Significant BR × seed bulb size interactions were found on yield and quality of P. ternata. The results indicate that BR effects on yield and quality of tubers and bulbils of P. ternata are not only related to BR concentration but also to seed bulb size.
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Affiliation(s)
- C Guo
- College of Life Sciences, Hebei University, Baoding, China
| | - M Li
- College of Life Sciences, Hebei University, Baoding, China
| | - Y Chen
- College of Life Sciences, Hebei University, Baoding, China
| | - X Xu
- College of Life Sciences, Hebei University, Baoding, China
| | - C Liu
- College of Life Sciences, Hebei University, Baoding, China
- Institute of Life Sciences and Green Development, Hebei University, Baoding, China
| | - J Chu
- College of Life Sciences, Hebei University, Baoding, China
- Institute of Life Sciences and Green Development, Hebei University, Baoding, China
| | - X Yao
- College of Life Sciences, Hebei University, Baoding, China
- Institute of Life Sciences and Green Development, Hebei University, Baoding, China
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29
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Yao X, Lan Y, Liao L, Huang Y, Yu S, Ye S, Yang M. Effects of nitrogen supply rate on photosynthesis, nitrogen uptake and growth of seedlings in a Eucalyptus/Dalbergia odorifera intercropping system. Plant Biol (Stuttg) 2022; 24:192-204. [PMID: 34569130 DOI: 10.1111/plb.13341] [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: 10/23/2020] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
The introduction of N2 -fixing species into a Eucalyptus plantation resulted in a successful planting system. It is essential to understand the contribution of nitrogen (N) competition and photosynthetic efficiency to plant dry matter yield to shed more light on the growth mechanism of the Eucalyptus/legume system. We compared N competition, photosynthesis and dry matter yield of Eucalyptus urophylla × E. grandis and the N2 -fixing tree species Dalbergia odorifera in intercropping and monoculture systems under different N levels. The photosynthesis of E. urophylla × E. grandis was improved, while that of D. odorifera was inhibited in the intercropping system. Intercropped E. urophylla × E. grandis increased the N utilization and the dry matter yield by 6.57-48.46% and 7.59-97.26%, and decreased those of D. odorifera by 10.21-30.33% and 0.48-13.19%, respectively. Furthermore, N application enhanced the competitive ability of E. urophylla × E. grandis relative to D. odorifera and changed the N contents and chlorophyll synthesis to optimize the photosynthetic structure of both species. Our results reveal Eucalyptus for photosynthesis, N absorption and increasing the growth benefit from the introduction of N2 -fixing species, which hence can be considered to be an effective sustainable management option of Eucalyptus plantations.
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Affiliation(s)
- X Yao
- College of Forestry, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Y Lan
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - L Liao
- College of Forestry, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Y Huang
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - S Yu
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - S Ye
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - M Yang
- College of Forestry, Guangxi University, Nanning, Guangxi, China
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30
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Zheng Z, Yao X. Multiparametric MRI-based radiomics signature for preoperative estimation of basal and luminal features in bladder cancer. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03223-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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31
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Liu M, Wu J, Yao X, Yuan K, Zhang D, Tang B, Yin J. Feasibility of Single Non-Coplanar Models for Stereotactic Radiosurgery of Brain Metastases. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1489] [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: 11/26/2022]
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32
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Dickow J, Van Houten H, Sangaralingham L, Friedman P, Packer D, Kirchhof P, Noseworthy P, Yao X. Generalizability of the EAST-AFNET 4 trial: assessing outcomes of early rhythm-control therapy in patients with atrial fibrillation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0441] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The Early Treatment of Atrial Fibrillation for Stroke Prevention Trial (EAST-AFNET 4) demonstrated clinical benefit of early rhythm-control therapy in patients with recently diagnosed atrial fibrillation (AF) and concomitant cardiovascular conditions (CHA2DS2-VASc-Score ≥2) compared to the current practice of limited rhythm-control therapy to improve AF-related symptoms.
Purpose
To evaluate the generalizability of the EAST-AFNET 4 trial in routine practice, we assessed the proportion of patients who would have met trial eligibility and examined the association between early rhythm-control and clinical outcomes.
Methods
Using a large US administrative database, we identified 109,739 patients with newly diagnosed AF from July 28th, 2011 to December 30th, 2016, the enrollment period of the EAST-AFNET 4 trial. Eligibility for trial inclusion was assessed based on inclusion criteria. Eligible patients were classified as either receiving early rhythm-control, i.e AF ablation and/or any antiarrhythmic drug therapy, within the first year after AF diagnosis (N=27,106) or patients not receiving early rhythm-control (N=82,633). The date 12 months after the first AF diagnosis was defined as the index date and the start of the follow up period. Propensity score overlap weighting was used to balance patients on 90 baseline characteristics. Cox proportional hazards regression was used to compare early rhythm-control with no early rhythm-control for the primary outcome of a composite end point of all-cause mortality, stroke, or hospitalization with the diagnoses heart failure or myocardial infarction.
Results
Eligible for the trial were 72.9% (82,633/109,739) of all patients with newly diagnosed AF. Early rhythm-control therapy was associated with a reduction in the composite end point in the overall cohort of patients (hazard ratio [HR] 0.85; 95% confidence interval [CI] 0.75–0.97; P=0.015) with largely consistent treatment effects between patients eligible or ineligible for the trial. The reduction of stroke risk associated with early rhythm-control therapy was found in the overall cohort (HR 0.66; 95% CI 0.47–0.93; P=0.017) and in the trial-eligible cohort (HR 0.67; 95% CI 0.45–0.98; P=0.041).
Conclusion
In a large health care data set, the majority of patients with newly diagnosed AF were eligible for the trial. Early rhythm-control therapy was associated with a 15% reduction in the composite end point of all-cause mortality, stroke, or hospitalization with the diagnoses heart failure or myocardial infarction, with the greatest benefit in the reduction of stroke risk. The treatment effect was consistent between patients eligible or ineligible for the trial. Patients in routine practice had higher rates of adverse outcomes than the trial, but the relative risk reduction with early rhythm-control therapy was similar. These data demonstrate the potential of early rhythm-control therapy to reduce outcomes in patients with AF.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): German Heart Foundation (Mit Fördermitteln der Deutschen Herzstiftung e.V.)
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Affiliation(s)
- J Dickow
- University Heart & Vascular Center Hamburg, Hamburg, Germany
| | | | | | - P.A Friedman
- Mayo Clinic, Rochester, United States of America
| | - D.L Packer
- Mayo Clinic, Rochester, United States of America
| | - P Kirchhof
- University Heart & Vascular Center Hamburg, Hamburg, Germany
| | | | - X Yao
- Mayo Clinic, Rochester, United States of America
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33
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Haider MA, Brown J, Yao X, Chin J, Perlis N, Schieda N, Loblaw A. Multiparametric Magnetic Resonance Imaging in the Diagnosis of Clinically Significant Prostate Cancer: an Updated Systematic Review. Clin Oncol (R Coll Radiol) 2021; 33:e599-e612. [PMID: 34400038 DOI: 10.1016/j.clon.2021.07.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/05/2021] [Accepted: 07/27/2021] [Indexed: 12/20/2022]
Abstract
There has been growing utilisation of multiparametric magnetic resonance imaging (MPMRI) as a non-invasive tool to diagnose and localise clinically significant prostate cancer (CSPCa). This updated systematic review examines the use of MPMRI in patients with an elevated risk of CSPCa who have had a prior negative transrectal ultrasound systematic biopsy (TRUS-SB) and who were biopsy naïve. MEDLINE, EMBASE and the Cochrane Database of Systematic Reviews were searched for existing systematic reviews published up to September 2020. The literature search of the electronic databases combined disease-specific terms (prostate cancer, prostate carcinoma, etc.) and treatment-specific terms (magnetic resonance, etc.). Studies were included if they were randomised controlled trials (RCTs) comparing MPMRI to template transperineal mapping biopsy (TPMB) or to TRUS-SB. Thirty-six RCTs were eligible. For biopsy-naïve men, accuracy of diagnosis of CSPCa showed sensitivities from 87 to 96% and specificities ranging from 29 to 45%. Meta-analyses for CSPCa showed increased detection favouring MPMRI-targeted biopsy over TRUS-SB by 3% (95% confidence interval 0-7%, P = 0.03) and decreased detection of clinically insignificant prostate cancer (CISPCa) favouring MPMRI by 8% (95% confidence interval -11 to 5%, P < 0.00001). Accuracy of MPMRI for men with prior negative biopsy showed sensitivities of 78-100% and specificities of 30-100%. Meta-analyses comparing MPMRI to TRUS-SB showed increased detection of 5% (95% confidence interval 3-7%, P < 0.0001) with a reduction of CISPCa detection of 7% (95% confidence interval 4-9%, P < 0.00001). The growing acceptance of MPMRI utilisation internationally and the recent publication of several RCTs regarding MPMRI in reducing CISPCa detection rates, particularly in biopsy-naïve men, without loss of sensitivity for CSPCa necessitates the synthesis of updated evidence examining MPMRI in the diagnosis of CSPCa.
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Affiliation(s)
- M A Haider
- Sinai Health System and University of Toronto, Joint Department of Medical Imaging, Toronto, ON, Canada
| | - J Brown
- Program in Evidence-based Care, Ontario Health (Cancer Care Ontario), McMaster University, Hamilton, ON, Canada
| | - X Yao
- Program in Evidence-based Care, Ontario Health (Cancer Care Ontario), McMaster University, Hamilton, ON, Canada; Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada.
| | - J Chin
- London Health Sciences Centre, Victoria Hospital, London, ON, Canada
| | - N Perlis
- Cancer Clinical Research Unit, Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - N Schieda
- Department of Radiology, University of Ottawa, Ottawa, ON, Canada
| | - A Loblaw
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada
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34
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Zhao Y, Wu L, Lu Q, Gao X, Zhu X, Yao X, Li L, Li W, Ding Y, Song Z, Liu L, Dang N, Zhang C, Liu X, Gu J, Wang J, Geng S, Liu Q, Guo Y, Dong L, Su H, Bai L, O'Malley JT, Luo J, Laws E, Mannent L, Ruddy M, Amin N, Bansal A, Ota T, Wang M, Zhang J. The efficacy and safety of dupilumab in Chinese patients with moderate-to-severe atopic dermatitis: a randomized, double-blind, placebo-controlled study. Br J Dermatol 2021; 186:633-641. [PMID: 34358343 PMCID: PMC9298048 DOI: 10.1111/bjd.20690] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [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] [Accepted: 08/05/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Dupilumab is an antibody against interleukin 4 receptor α, used in treating atopic dermatitis (AD). OBJECTIVES To evaluate the efficacy and safety of dupilumab in adult Chinese patients with moderate-to-severe AD. METHODS In this randomized, double-blind, placebo-controlled, parallel-group, phase III study, conducted between December 2018 and February 2020, patients with AD received dupilumab (300mg) or placebo once every 2 weeks for 16 weeks, and were followed up for 12 weeks. The primary efficacy endpoint was the proportion of patients with both Investigator's Global Assessment (IGA) score of 0-1 and a reduction from baseline of ≥2 points at week 16. RESULTS Overall, 165 patients (mean age: 30.6 years; 71.5% male) were randomized: 82 to dupilumab and 83 to placebo. At week 16, 26.8% of patients in the dupilumab group and 4.8% of patients in the placebo group achieved the primary endpoint (difference, 22.0%; 95% confidence interval [CI], 11.37-32.65%; p<0.0001). Compared with placebo, higher proportions of patients in the dupilumab group achieved ≥75% reduction in the Eczema Area and Severity Index score (57.3% vs 14.5%; difference, 42.9%; 95% CI, 29.75-55.97%; p<0.0001) and had ≥3-point (52.4% vs 9.6%; difference, 42.8%; 95% CI, 30.26-55.34%; p<0.0001) and ≥4-point (39.0% vs 4.8%; difference, 34.2%; 95% CI, 22.69-45.72%; p<0.0001) reductions in weekly average daily peak daily pruritus numerical rating scale scores. The incidence of TEAEs during the treatment period was similar in the two groups. The incidence of conjunctivitis, allergic conjunctivitis, and injection site reaction was higher in the dupilumab group than in the placebo group. CONCLUSIONS In adult Chinese patients, dupilumab was effective in improving the signs and symptoms of AD and demonstrated a favorable safety profile.
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Affiliation(s)
- Y Zhao
- Peking University People's Hospital, Beijing, China
| | - L Wu
- Hangzhou First People's Hospital, Hangzhou, China
| | - Q Lu
- The Second Xiangya Hospital of Central South University, Changsha, China
| | - X Gao
- The First Hospital of China Medical University, Shenyang, China
| | - X Zhu
- Wuxi Second People's Hospital, Jiangsu, China
| | - X Yao
- Hospital for skin diseases, Institute of Dermatology, Chinese Academy of medical sciences, Nanjing, China
| | - L Li
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - W Li
- Huashan Hospital, Fudan University, Shanghai, China
| | - Y Ding
- Shanghai Skin Disease Hospital, Shanghai, China
| | - Z Song
- The Southwest Hospital of AMU, Chongqing, China
| | - L Liu
- Peking University First Hospital, Beijing, China
| | - N Dang
- Jinan Central Hospital, Jinan, China
| | - C Zhang
- Peking University Third Hospital, Beijing, China
| | - X Liu
- University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - J Gu
- Changhai Hospital of Shanghai, Shanghai, China
| | - J Wang
- Ningbo No.2 Hospital, Ningbo, China
| | - S Geng
- The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Q Liu
- Tianjin Medical University General Hospital, Tianjin, China
| | - Y Guo
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Dong
- Research & Development, Sanofi, Shanghai, China
| | - H Su
- Research & Development, Sanofi, Shanghai, China
| | - L Bai
- Research & Development, Sanofi, Shanghai, China
| | | | - J Luo
- Research & Development, Sanofi, Indianapolis, USA
| | - E Laws
- Research & Development, Sanofi, Bridgewater, USA
| | - L Mannent
- Research & Development, Sanofi, Paris, France
| | - M Ruddy
- Research & Development, Regeneron, New York, USA
| | - N Amin
- Research & Development, Regeneron, New York, USA
| | - A Bansal
- Research & Development, Regeneron, New York, USA
| | - T Ota
- Research & Development, Regeneron, New York, USA
| | - M Wang
- Medical, Sanofi China, Shanghai, China
| | - J Zhang
- Peking University People's Hospital, Beijing, China
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35
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Zhao Y, Tang B, Li J, Wang P, Liao X, Yao X, Xin X, Orlandini L. PO-1902 Treating left-sided breast patients in breath hold using a real time surface tracking system. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08353-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Huebinger RM, Do DH, Carlson DL, Yao X, Stones DH, De Souza Santos M, Vaz DP, Keen E, Wolf SE, Minei JP, Francis KP, Orth K, Krachler AM. Bacterial adhesion inhibitor prevents infection in a rodent surgical incision model. Virulence 2021; 11:695-706. [PMID: 32490711 PMCID: PMC7550027 DOI: 10.1080/21505594.2020.1772652] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Surgical site infection risk continues to increase due to lack of efficacy in current standard of care drugs. New methods to treat or prevent antibiotic-resistant bacterial infections are needed. Multivalent Adhesion Molecules (MAM) are bacterial adhesins required for virulence. We developed a bacterial adhesion inhibitor using recombinant MAM fragment bound to polymer scaffold, mimicking MAM7 display on the bacterial surface. Here, we test MAM7 inhibitor efficacy to prevent Gram-positive and Gram-negative infections. Using a rodent model of surgical infection, incision sites were infected with antibiotic-resistant bioluminescent strains of Staphylococcus aureus or Pseudomonas aeruginosa. Infections were treated with MAM7 inhibitor or control suspension. Bacterial abundance was quantified for nine days post infection. Inflammatory responses and histology were characterized using fixed tissue sections. MAM7 inhibitor treatment decreased burden of S. aureus and P. aeruginosa below detection threshold. Bacterial load of groups treated with control were significantly higher than MAM7 inhibitor-treated groups. Treatment with inhibitor reduced colonization of clinically-relevant pathogens in an in vivo model of surgical infection. Use of MAM7 inhibitor to block initial adhesion of bacteria to tissue in surgical incisions may reduce infection rates, presenting a strategy to mitigate overuse of antibiotics to prevent surgical site infections.
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Affiliation(s)
- R M Huebinger
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - D H Do
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - D L Carlson
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - X Yao
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - D H Stones
- School of Biosciences, Institute of Microbiology and Infection, University of Birmingham , Birmingham, UK.,University of Gloucestershire, School of Natural and Social Sciences , Cheltenham, UK
| | - M De Souza Santos
- Department of Molecular Biology, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - D P Vaz
- Department of Microbiology and Molecular Genetics, University of Texas Health Science Center at Houston, McGovern Medical School , Houston, TX, USA
| | - E Keen
- School of Biosciences, Institute of Microbiology and Infection, University of Birmingham , Birmingham, UK
| | - S E Wolf
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA.,UTMB Department of Surgery, Shriners Hospitals for Children , Galveston, TX, USA
| | - J P Minei
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | | | - K Orth
- Department of Molecular Biology, University of Texas Southwestern Medical Center , Dallas, TX, USA.,Department of Biochemistry, University of Texas Southwestern Medical Center , Dallas, TX, USA.,Howard Hughes Medical Institute, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - A M Krachler
- Department of Microbiology and Molecular Genetics, University of Texas Health Science Center at Houston, McGovern Medical School , Houston, TX, USA
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37
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Xu S, Yao X, Han L, Lv Y, Bu X, Huang G, Fan Y, Yu T, Huang G. Brain network analyses of diffusion tensor imaging for brain aging. Math Biosci Eng 2021; 18:6066-6078. [PMID: 34517523 DOI: 10.3934/mbe.2021303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The approach of graph-based diffusion tensor imaging (DTI) networks has been used to explore the complicated structural connectivity of brain aging. In this study, the changes of DTI networks of brain aging were quantitatively and qualitatively investigated by comparing the characteristics of brain network. A cohort of 60 volunteers was enrolled and equally divided into young adults (YA) and older adults (OA) groups. The network characteristics of critical nodes, path length (Lp), clustering coefficient (Cp), global efficiency (Eglobal), local efficiency (Elocal), strength (Sp), and small world attribute (σ) were employed to evaluate the DTI networks at the levels of whole brain, bilateral hemispheres and critical brain regions. The correlations between each network characteristic and age were predicted, respectively. Our findings suggested that the DTI networks produced significant changes in network configurations at the critical nodes and node edges for the YA and OA groups. The analysis of whole brains network revealed that Lp, Cp increased (p < 0.05, positive correlation), Eglobal, Elocal, Sp decreased (p < 0.05, negative correlation), and σ unchanged (p ≥ 0.05, non-correlation) between the YA and OA groups. The analyses of bilateral hemispheres and brain regions showed similar results as that of the whole-brain analysis. Therefore the proposed scheme of DTI networks could be used to evaluate the WM changes of brain aging, and the network characteristics of critical nodes exhibited valuable indications for WM degeneration.
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Affiliation(s)
- Song Xu
- College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xufeng Yao
- College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Liting Han
- College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuting Lv
- College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xixi Bu
- College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Gan Huang
- College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yifeng Fan
- School of Medical Imaging, Hangzhou Medical College, Hangzhou 310053, China
| | - Tonggang Yu
- Shanghai Gamma Knife Hospital, Fudan University, Shanghai 200235, China
| | - Gang Huang
- College of Medical Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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Zhu J, Li X, Zhang S, Liu J, Yao X, Zhao Q, Kou B, Han P, Wang X, Bai Y, Zheng Z, Xu C. Taraxasterol inhibits TGF-β1-induced epithelial-to-mesenchymal transition in papillary thyroid cancer cells through regulating the Wnt/β-catenin signaling. Hum Exp Toxicol 2021; 40:S87-S95. [PMID: 34219514 DOI: 10.1177/09603271211023792] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Taraxasterol (TAR) is a kind of active compound extracted from dandelion and its molecular structure resembles steroid hormones. Recently, TAR has been reported to show an anti-tumor activity. However, the specific role of TAR in papillary thyroid cancer (PTC) has not been clarified. In this study, we investigated the effect of TAR on PTC cell migration, invasion and epithelial-to-mesenchymal transition (EMT) induced by TGF-β1. PTC cells were exposed to TGF-β1 (5 ng/mL) and then treated with different concentrations of TAR. We found that TAR showed no obvious cytotoxicity below 10 μg/mL but notably reduced migration and invasion of TGF-β1-treated PTC cells. Moreover, TAR treatment decreased MMP-2 and MMP-9 levels, and obviously affected the expression of EMT markers. We also observed that Wnt3a and β-catenin levels were significantly increased in TGF-β1-treated PTC cells while TAR inhibited these effects in a concentration-dependent manner. Additionally, activation of the Wnt pathway by LiCl attenuated the suppressive effect of TAR on TGF-β1-induced migration, invasion and EMT in PTC cells. Taken together, we highlighted that TAR could significantly suppress TGF-β1-regulated migration and invasion by reversing the EMT process via the Wnt/β-catenin pathway, suggesting that TAR may be a potential anti-cancer agent for PTC treatment.
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Affiliation(s)
- J Zhu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of General Surgery, Shaanxi Tumor Hospital, Xi'an, China
| | - X Li
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - S Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Liu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Yao
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Q Zhao
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - B Kou
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - P Han
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Wang
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y Bai
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Z Zheng
- The Third Ward of Department of General Surgery, Rizhao People's Hospital, Rizhao, China
| | - C Xu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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39
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Wang B, Yao J, Yao X, Lao J, Liu D, Chen C, Lu Y. [Swertiamarin alleviates diabetic peripheral neuropathy in rats by suppressing NOXS/ ROS/NLRP3 signal pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:937-941. [PMID: 34238748 PMCID: PMC8267977 DOI: 10.12122/j.issn.1673-4254.2021.06.18] [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: 03/18/2023]
Abstract
OBJECTIVE To observe the therapeutic effect of swertiamarin on diabetic peripheral neuropathy (DPN) in rats and explore the molecular mechanism in light of the NOXS/ROS/NLRP3 signal pathway. OBJECTIVE Thirty-two SD rats were randomly divided into control group, DPN model group (treated with saline), swertiamarin (5 mg/kg) treatment group and NOXS inhibitor (10 mL/kg DPI) treatment group. Rat models of DPN were established in the latter 3 groups by intraperitoneal injections of STZ, and the treatments were administered on days 1, 7 and 14 after modeling. Tactile hypersensitivity of the rats was evaluated 30 min after the treatment. The expressions of NOXS, ROS, NLRP3 and inflammatory factors in the spinal cord tissue were detected using ELISA, and the protein expressions of NOXS, ROS, and NLRP3 were also detected with Western blotting. OBJECTIVE Compared with those in the control group, the rats in DPN group showed significant hyperalgesia (P < 0.001), increased expressions of TNF-α (P < 0.001) and IL-6 (P < 0.001), decreased expressions of TGF-β (P < 0.001), and increased expressions of NOXS/ROS/NLRP3 signal pathway (P < 0.001). Compared with those in DPN model group, the rats with swertiamarin treatment showed improved hyperalgesia (P < 0.001), decreased expressions of TNF-α (P=0.03) and IL-6 (P=0.002), increased expressions of TGF-β (P=0.04), and decreased expressions of NOXS (P < 0.001), ROS (P < 0.001) and NLRP3 (P=0.002). Treatment with swertiamarin and the NOXS inhibitor produced similar effects on the expressions of the inflammatory factors in the rat models (P>0.05). OBJECTIVE DPN effectively relieves hyperalgesia in rat models of DPN by restoring the balance in the expressions of the inflammatory factors by suppressing NOXs/ROS/NLRP3 signaling pathway.
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Affiliation(s)
- B Wang
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - J Yao
- Department of Gastroenterology, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China
| | - X Yao
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - J Lao
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - D Liu
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - C Chen
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - Y Lu
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
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Haoran L, Ye T, Yang X, Duan C, Yao X, Ye Z, Liang C. AhR activation attenuates calcium oxalate nephrocalcinosis-mediated kidney injury and crystals deposition by promoting M2 macrophage polarization. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00615-1] [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: 11/25/2022]
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41
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Huang J, Cai X, Yao X, Qian H, Zhang J, Kong W, Huang Y, Wu X, Chen Y, Xue W. Cognitive function after cardiopulmonary bypass and deep hypothermic circulatory arrest in the management of renal cell carcinoma with IVC tumor thrombus. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01006-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Zhou F, Yang S, Zhao C, Liu W, Yao X, Yu H, Sun X, Liu Y. γ-Glutamyl transpeptidase-activatable near-infrared nanoassembly for tumor fluorescence imaging-guided photothermal therapy. Theranostics 2021; 11:7045-7056. [PMID: 34093870 PMCID: PMC8171106 DOI: 10.7150/thno.60586] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/01/2021] [Indexed: 12/14/2022] Open
Abstract
Rationale: Precise treatment of tumors is attracting increasing attention. Molecular probes simultaneously demonstrating the diagnostic signal and pharmacological effect in response to tumor microenvironment are highly desired. γ-glutamyl transpeptidase (GGT) is a biomarker with significantly up-regulated expression in the tumor area. We developed a GGT responsive near-infrared (NIR) nanoassembly for tumor-specific fluorescence imaging-guided photothermal therapy. Methods: The GGT responsive NIR probe was constructed by conjugating GGT-specific substrate γ-glutamic acid (γ-Glu) with cyanine fluorophore (NRh-NH2) via amide reaction. The resulting NRh-G spontaneously assembled into nanoparticles (NRh-G-NPs) around 50 nm. The NPs were characterized and the properties evaluated in the presence or absence of GGT. Subsequently, we studied fluorescence imaging and photothermal therapy of NRh-G-NPs in vitro and in vivo. Results: NRh-G-NPs, upon specific reaction with GGT, turned into NRh-NH2-NPs, showing a ~180-fold fluorescence enhancement and excellent photothermal effect recovery. NRh-G-NPs could selectively light up U87MG tumor cells while their fluorescence was weak in L02 human normal liver cells. The NPs also showed excellent tumor cell ablation upon laser irradiation. After intravenous injection into tumor-bearing mice, NRh-G-NPs could arrive in the tumor area and specifically light up the tumor. Following laser irradiation, the tumor could be completely erased with no tumor reoccurrence for up to 40 days. Conclusions: NRh-G-NPs were specifically responsive to GGT overexpressed in U87MG tumor cells and selectively lit up the tumor for imaging-guided therapy. Besides, the recovery of photothermal property in the tumor area could improve cancer therapy precision and decreased side effects in normal tissues.
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Affiliation(s)
- Fangyuan Zhou
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Shikui Yang
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Chao Zhao
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Wangwang Liu
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Xufeng Yao
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Hui Yu
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Xiaolian Sun
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Yi Liu
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
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44
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Liu W, Yao X, Zhu W, Wang J, Zhou F, Qian X, Tiemuer A, Yang S, Wang HY, Liu Y. Azo-Based Hypoxia-Responsive Self-Assembly Near-Infrared Fluorescent Nanoprobe for In Vivo Real-Time Bioimaging of Tumors. ACS Appl Bio Mater 2021; 4:2752-2758. [PMID: 35014314 DOI: 10.1021/acsabm.0c01659] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hypoxia is an obvious characteristic of cancer, especially solid tumors. which may give rise to the expansion of invasion and metastasis. Exploring near-infrared (NIR) nanoprobes that could accurately evaluate the degree of hypoxia will contribute to the assessment of the degree of malignant neoplasms, so as to adopt more accurate and individualized treatment options Here, we have developed a self-assembled NIR organic nanoprobe to specifically and authoritatively detect the oxygen concentration in vivo and in vitro to evaluate the level of hypoxia. The organic nanoprobe mainly contains two motifs: a fluorophore moiety NRh-NH2 for NIR fluorescence imaging and hypoxia-sensitive moiety Azonaphthalene derivatives for quenching NIR emissions, detecting oxygen in hypoxic regions and improving the hydrophilicity. The nanoprobes were used for detection of oxygen in a variety of living cells under different conditions and real-time bioimaging of neoplasms in live mice. This design strategy provides ideas for the development of nanoprobes for the diagnosis of tumors and other hypoxia-related diseases.
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Affiliation(s)
- Wangwang Liu
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Xufeng Yao
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Wenchao Zhu
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Jing Wang
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Fangyuan Zhou
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Xiaoli Qian
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Aliya Tiemuer
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Shikui Yang
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Hai-Yan Wang
- School of Mechanical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Yi Liu
- School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
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Paz-Ares L, Spigel D, Chen Y, Jove M, Juan-Vidal O, Rich P, Hayes T, Gutiérrez Calderón V, Caro R, Navarro A, Dowlati A, Zhang B, Moore Y, Yao X, Kokhreidze J, Ponce S, Bunn P. FP10.04 RESILIENT Part 1: Safety and Efficacy of Second-Line Liposomal Irinotecan in Patients with Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Zhou H, Yao X, Tang SH, Xie M, Feng ZS, Qin JP. [Clinical study of transjugular intrahepatic portosystemic shunt with Viatorr stent in 43 cases]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:54-59. [PMID: 33541024 DOI: 10.3760/cma.j.cn501113-20190225-00058] [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 efficacy and safety of transjugular intrahepatic portosystemic shunt (TIPS) with the use of Viator stent in the treatment of cirrhotic portal hypertension. Methods: 43 cases with cirrhotic portal hypertension were implanted with Viatorr stent during TIPS procedure from March 2016 to August 2018. Serological indicators, color Doppler ultrasound, gastroscopy, rebleeding, ascites and hepatic encephalopathy were regularly followed up. Portal venous pressure, liver and kidney function, coagulation indexes were compared by t-test. Stent patency rate, hepatic encephalopathy incidence, rebleeding rate and survival rate were calculated by Kaplan-Meier curve. Results: TIPS procedure success rate was 100% in all patients. Portal pressure gradient was decreased from (25.57 ± 5.50) mmHg to (9.76 ± 2.92) mmHg before and after operation. Alanine aminotransferase (ALT) was significantly higher at 1 month after operation than before operation, but there was no significant difference between 3 and 6 months after and before operation. Total bilirubin, serum ammonia and prothrombin time at 1, 3, and 6 months after operation were higher than before operation. Albumin had no significant change compared with before operation, and creatinine and urea nitrogen were lower than before operation. The cumulative rebleeding rates at 12 and 24 months after operation was 0% and 9%, respectively. Of the 26 patients with ascites, 22 cases (84.6%) had complete disappearance of ascites and 3 (11.5%) had significant decrease of ascites. The cumulative incidence of hepatic encephalopathy at 3, 6, 12 and 24 months after surgery was 11.6%, 17.3%, 21.9% and 21.9%, respectively. The cumulative incidence of stent dysfunction at 12 and 24 months after surgery was 5.6% and 23.7%, respectively. The cumulative survival rate at 12 months and 24 months after surgery was 91.9%. Conclusion: TIPS procedure with Viatorr stent can effectively reduce portal pressure and rebleeding rate, improve intrahepatic shunt patency rate, and will not increase the risk of postoperative hepatic encephalopathy, and has a higher cumulative survival rate.
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Affiliation(s)
- H Zhou
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu 610083, China North Sichuan Medical College, Nanchong 637000, China
| | - X Yao
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu 610083, China
| | - S H Tang
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu 610083, China
| | - M Xie
- Department of Gastroenterology, Sichuan Armed Police Corps Hospital, Leshan 614000, China
| | - Z S Feng
- Department of Gastroenterology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - J P Qin
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu 610083, China
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Yao X, Sun K, Bu X, Zhao C, Jin Y. Classification of white blood cells using weighted optimized deformable convolutional neural networks. Artif Cells Nanomed Biotechnol 2021; 49:147-155. [PMID: 33533656 DOI: 10.1080/21691401.2021.1879823] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Machine learning (ML) algorithms have been widely used in the classification of white blood cells (WBCs). However, the performance of ML algorithms still needs to be addressed for being short of gold standard data sets, and even the implementation of the proposed algorithms. METHODS In this study, the method of two-module weighted optimized deformable convolutional neural networks (TWO-DCNN) was proposed for WBC classification. Our algorithm is characterized as two-module transfer learning and deformable convolutional (DC) layers for the betterment of robustness. To validate the performance, our method was compared with classical MLs of VGG16, VGG19, Inception-V3, ResNet-50, support vector machine (SVM), multilayer perceptron (MLP), decision tree (DT) and random forest (RF) on our undisclosed WBC data set and public BCCD data set. RESULTS TWO-DCNN achieved the best performance with the precisions (PREs) of 95.7%, 94.5% and 91.6%, recalls (RECs) of 95.7%, 94.5% and 91.6%, F1-scores (F1s) of 95.7%, 94.5% and 91.6%, area under curves (AUCs) of 0.98, 0.97 and 0.95 for low-resolution and noisy undisclosed data sets, BCCD data set, respectively. CONCLUSIONS With accurate feature extraction and optimized network weights, the proposed TWO-DCNN showed the best performance in WBC classification for low-resolution and noisy data sets. It could be used as an alternative method for clinical applications.
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Affiliation(s)
- Xufeng Yao
- College of Medical Imaging, Jiading District Central Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China.,Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Kai Sun
- College of Medical Imaging, Jiading District Central Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China.,School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Xixi Bu
- College of Medical Imaging, Jiading District Central Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China.,School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Congyi Zhao
- College of Medical Imaging, Jiading District Central Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China.,School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Yu Jin
- College of Medical Imaging, Jiading District Central Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China.,School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
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48
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Yao X, Chen P, Cheng T, Sun K, Megharaj M, He W. Inoculation of Bacillus megaterium strain A14 alleviates cadmium accumulation in peanut: effects and underlying mechanisms. J Appl Microbiol 2021; 131:819-832. [PMID: 33386698 DOI: 10.1111/jam.14983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/01/2020] [Accepted: 12/21/2020] [Indexed: 11/30/2022]
Abstract
AIMS A cadmium (Cd)-tolerant Bacillus megaterium strain A14 was used to investigate the effects and mechanisms of bacterial inoculation on peanut growth, Cd accumulation in grains and Cd fixation in Cd-contaminated soil. METHODS AND RESULTS Spectroscopic analysis showed that A14 has many functional groups (-OH, -NH2 and -COO et al.) distributed on its surface. The pot experiment indicated that compared to the Cd-contaminated soil alone treatment, inoculation with strain A14 increased shoot and root biomass by 59·93 and 58·31% respectively. The accumulation of Cd in grains decreased by 48·14%, while the proportion of exchangeable Cd in soil decreased from 40 to 26% in A14 inoculated soil. CONCLUSIONS Inoculation with B. megaterium A14 improved peanut plant growth via (i) adsorbing Cd2+ through functional groups on cell surface, (ii) immobilization of Cd in soil through extracellular secretions, (iii) scavenging the reactive oxygen species through production of antioxidant enzymes, and (iv) by reducing the phytoavailable Cd through regulation of Cd transport gene expression. SIGNIFICANCE AND IMPACT OF THE STUDY This study provided a new sight on microbial approach for the chemical composition transformation of soil Cd and associated food safety production, which pointed out an efficient way to improve peanut cultivation.
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Affiliation(s)
- X Yao
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - P Chen
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - T Cheng
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - K Sun
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - M Megharaj
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle (UoN), Callaghan, NSW, Australia
| | - W He
- College of Life Sciences, Nanjing Normal University, Nanjing, China
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Yanga L, Zang S, Chen X, Yao X, Sun H, Liu Y, Dun W. Effects of feeding corn silage instead of peanut hay on the growth performance, meat quality and expression of growth-related genes in fattening lambs. ANIM NUTR FEED TECHN 2021. [DOI: 10.5958/0974-181x.2021.00021.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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50
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Chen YW, Sheng KX, Yao X, Xu CP, Qu LH, Guo Q, Chen JH, Zhang P. [Early mortality and risk analysis in adult patients with maintenance hemodialysis]. Zhonghua Nei Ke Za Zhi 2021; 60:35-40. [PMID: 33397019 DOI: 10.3760/cma.j.cn112138-20200608-00567] [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 retrospectively analyze the early mortality and related risk factors in adult patients with maintenance hemodialysis (MHD). Methods: Adult MHD patients from 2008 to 2018 were enrolled and divided into training data group and validation data group. In training data group, multivariate logistic regression was used to analyze the risk factors of early death within 120 days after hemodialysis and establish a prediction model. The receiver operating characteristic (ROC) curve was applied to evaluate the prediction ability of the model. Results: A total of 4 885 patients were included. The cumulative mortality within 120 days was 20.97/100 person years, and that within 365 days was 12.25/100 person years. A total of 3 603 patients in the training data group were analyzed. The following risk factors were correlated with early mortality (all P<0.05), including age at start of dialysis over 60 years old (OR=1.792), non-chronic glomerulonephritis (OR=2.214), cardio-cerebrovascular disease (OR=2.695), plasma albumin less than 35 g/L (OR=1.358), platelet count less than 120×109/L (OR=2.194), serum creatinine less than 600 μmol/L (OR=1.652), blood urea nitrogen over 30 mmol/L (OR=1.887), blood phosphorus less than 1.13 mmol/L (OR=1.783), pulse pressure over 55 mmHg(1 mmHg=0.133 kPa) (OR=1.656), low density lipoprotein less than 1.5 mmol/L (OR=1.873), and blood calcium over 2.5 mmol/L (OR=1.876). Risk prediction model was established. The other 1 282 cases in the validation data group were verified. The area under ROC curve was 0.810, with sensitivity 85.7%, and specificity 62.5%. Conclusion: The mortality rate of adult MHD patients within 120 days after dialysis is high. The established prediction model can effectively predict the risk of early death.
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Affiliation(s)
- Y W Chen
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - K X Sheng
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - X Yao
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - C P Xu
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - L H Qu
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - Q Guo
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - J H Chen
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - P Zhang
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
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