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Sun J, Guo M, Chai L, Xu S, Lizhu Y, Li Y, Duan Y, Xu X, Lv S, Weng J, Li K, Zhou F, Li H, Li Y, Han X, Shi FD, Zhang X, Tian D, Zhuo Z, Liu Y. Distinct virtual histology of grey matter atrophy in four neuroinflammatory diseases. Brain 2024:awae138. [PMID: 38703370 DOI: 10.1093/brain/awae138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/24/2024] [Accepted: 04/12/2024] [Indexed: 05/06/2024] Open
Abstract
Gray matter (GM) atrophies were observed in multiple sclerosis, neuromyelitis optica spectrum disorders (both anti-aquaporin-4 antibody-positive [AQP4+], and -negative [AQP4-] subtypes NMOSD), and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). Revealing the pathogenesis of brain atrophy in these disorders would help their differential diagnosis and guide therapeutic strategies. To determine the neurobiological underpinnings of GM atrophies in multiple sclerosis, AQP4+ NMOSD, AQP4- NMOSD, and MOGAD, we conducted a virtual histology analysis that links T1-weighted image derived GM atrophy and gene expression using a multicenter cohort of 324 patients with multiple sclerosis, 197 patients with AQP4+ NMOSD, 75 patients with AQP4- NMOSD, 47 patients with MOGAD, and 2,169 healthy controls (HCs). First, interregional GM atrophy profiles across the cortical and subcortical regions were determined by Cohen's d between patients with multiple sclerosis, AQP4+ NMOSD, AQP4- NMOSD, MOGAD and HCs. Then, the GM atrophy profiles were spatially correlated with the gene expressions extracted from the Allen Human Brain Atlas, respectively. Finally, we explored the virtual histology of clinical feature relevant GM atrophy by subgroup analysis that stratified by physical disability, disease duration, number of relapses, lesion burden, and cognitive function. Multiple sclerosis showed severe widespread GM atrophy pattern, mainly involving subcortical nuclei and brainstem. AQP4+ NMOSD showed obvious widespread GM atrophy pattern, predominately located in occipital cortex as well as cerebellum. AQP4- NMOSD showed mild widespread GM atrophy pattern, mainly located in frontal and parietal cortices. MOGAD showed GM atrophy mainly involving the frontal and temporal cortices. High expression of genes specific to microglia, astrocytes, oligodendrocytes, and endothelial cells in multiple sclerosis, S1 pyramidal cells in AQP4+ NMOSD, as well as S1 and CA1 pyramidal cells in MOGAD had spatial correlations with GM atrophy profiles were observed, while no atrophy profile related gene expression was found in AQP4- NMOSD. Virtual histology of clinical feature relevant GM atrophy mainly pointed to the shared neuronal and endothelial cells among the four neuroinflammatory diseases. The unique underlying virtual histology patterns were microglia, astrocytes, and oligodendrocytes for multiple sclerosis; astrocytes for AQP4+ NMOSD; and oligodendrocytes for MOGAD. Neuronal and endothelial cells were shared potential targets across these neuroinflammatory diseases. These findings might help their differential diagnosis and optimal therapeutic strategies.
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Affiliation(s)
- Jun Sun
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Min Guo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Li Chai
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Siyao Xu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Yuerong Lizhu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Yuna Li
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Yunyun Duan
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Xiaolu Xu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Shan Lv
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Jinyuan Weng
- Department of Medical Imaging Product, Neusoft, Group Ltd., Shenyang, 110179, P.R. China
| | - Kuncheng Li
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, P. R. China
| | - Fuqing Zhou
- Department of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi Province, 330006, P. R. China
| | - Haiqing Li
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Yongmei Li
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Xuemei Han
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, 130031, P. R. China
| | - Fu-Dong Shi
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P. R. China
- Department of Neurology and Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, P. R. China
| | - Xinghu Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P. R. China
| | - Decai Tian
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P. R. China
| | - Zhizheng Zhuo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
| | - Yaou Liu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, P.R. China
- Tiantan Image Research Center, China National Clinical Research Center for Neurological Diseases, Beijing, 100070, P.R. China
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Weng J, Bhupathiraju SHV, Samant T, Dresner A, Wu J, Samant SS. Convolutional LSTM model for cine image prediction of abdominal motion. Phys Med Biol 2024; 69:085024. [PMID: 38518378 DOI: 10.1088/1361-6560/ad3722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/22/2024] [Indexed: 03/24/2024]
Abstract
Objective.In this study, we tackle the challenge of latency in magnetic resonance linear accelerator (MR-Linac) systems, which compromises target coverage accuracy in gated real-time radiotherapy. Our focus is on enhancing motion prediction precision in abdominal organs to address this issue. We developed a convolutional long short-term memory (convLSTM) model, utilizing 2D cine magnetic resonance (cine-MR) imaging for this purpose.Approach.Our model, featuring a sequence-to-one architecture with six input frames and one output frame, employs structural similarity index measure (SSIM) as loss function. Data was gathered from 17 cine-MRI datasets using the Philips Ingenia MR-sim system and an Elekta Unity MR-Linac equivalent sequence, focusing on regions of interest (ROIs) like the stomach, liver, pancreas, and kidney. The datasets varied in duration from 1 to 10 min.Main results.The study comprised three main phases: hyperparameter optimization, individual training, and transfer learning with or without fine-tuning. Hyperparameters were initially optimized to construct the most effective model. Then, the model was individually applied to each dataset to predict images four frames ahead (1.24-3.28 s). We evaluated the model's performance using metrics such as SSIM, normalized mean square error, normalized correlation coefficient, and peak signal-to-noise ratio, specifically for ROIs with target motion. The average SSIM values achieved were 0.54, 0.64, 0.77, and 0.66 for the stomach, liver, kidney, and pancreas, respectively. In the transfer learning phase with fine-tuning, the model showed improved SSIM values of 0.69 for the liver and 0.78 for the kidney, compared to 0.64 and 0.37 without fine-tuning.Significance. The study's significant contribution is demonstrating the convLSTM model's ability to accurately predict motion for multiple abdominal organs using a Unity-equivalent MR sequence. This advancement is key in mitigating latency issues in MR-Linac radiotherapy, potentially improving the precision and effectiveness of real-time treatment for abdominal cancers.
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Affiliation(s)
- J Weng
- Department of Radiation Oncology, University of Florida, Gainesville, FL, United States of America
| | - S H V Bhupathiraju
- Department of Computer and Information Science and Engineering, University of Florida, Gainesville, FL, United States of America
| | - T Samant
- Tera Insights, Gainesville, FL, United States of America
| | - A Dresner
- Philips Healthcare MR Oncology, Cleveland, OH, United States of America
| | - J Wu
- Department of Radiation Oncology, University of Florida, Gainesville, FL, United States of America
| | - S S Samant
- Department of Radiation Oncology, University of Florida, Gainesville, FL, United States of America
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Cheng D, Zhuo Z, Du J, Weng J, Zhang C, Duan Y, Sun T, Wu M, Guo M, Hua T, Jin Y, Peng B, Li Z, Zhu M, Imami M, Bettegowda C, Sair H, Bai HX, Barkhof F, Liu X, Liu Y. A Fully Automated Deep-Learning Model for Predicting the Molecular Subtypes of Posterior Fossa Ependymomas Using T2-Weighted Images. Clin Cancer Res 2024; 30:150-158. [PMID: 37916978 DOI: 10.1158/1078-0432.ccr-23-1461] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/11/2023] [Accepted: 10/31/2023] [Indexed: 11/03/2023]
Abstract
PURPOSE We aimed to develop and validate a deep learning (DL) model to automatically segment posterior fossa ependymoma (PF-EPN) and predict its molecular subtypes [Group A (PFA) and Group B (PFB)] from preoperative MR images. EXPERIMENTAL DESIGN We retrospectively identified 227 PF-EPNs (development and internal test sets) with available preoperative T2-weighted (T2w) MR images and molecular status to develop and test a 3D nnU-Net (referred to as T2-nnU-Net) for tumor segmentation and molecular subtype prediction. The network was externally tested using an external independent set [n = 40; subset-1 (n = 31) and subset-2 (n =9)] and prospectively enrolled cases [prospective validation set (n = 27)]. The Dice similarity coefficient was used to evaluate the segmentation performance. Receiver operating characteristic analysis for molecular subtype prediction was performed. RESULTS For tumor segmentation, the T2-nnU-Net achieved a Dice score of 0.94 ± 0.02 in the internal test set. For molecular subtype prediction, the T2-nnU-Net achieved an AUC of 0.93 and accuracy of 0.89 in the internal test set, an AUC of 0.99 and accuracy of 0.93 in the external test set. In the prospective validation set, the model achieved an AUC of 0.93 and an accuracy of 0.89. The predictive performance of T2-nnU-Net was superior or comparable to that of demographic and multiple radiologic features (AUCs ranging from 0.87 to 0.95). CONCLUSIONS A fully automated DL model was developed and validated to accurately segment PF-EPNs and predict molecular subtypes using only T2w MR images, which could help in clinical decision-making.
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Affiliation(s)
- Dan Cheng
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Zhizheng Zhuo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Jiang Du
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Jinyuan Weng
- Department of Medical Imaging Product, Neusoft, Group Ltd., Shenyang, P.R. China
| | - Chengzhou Zhang
- Department of Radiology, Yantai Yuhuangding Hospital, Yantai, Shandong, P.R. China
| | - Yunyun Duan
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Ting Sun
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Minghao Wu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Min Guo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Tiantian Hua
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Ying Jin
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Boyang Peng
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | | | - Mingwang Zhu
- Department of Radiology, Sanbo Brain Hospital, Capital Medical University, Beijing, P.R. China
| | - Maliha Imami
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Chetan Bettegowda
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Haris Sair
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Harrison X Bai
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Frederik Barkhof
- Queen Square Institute of Neurology and Centre for Medical Image Computing, University College London, London, United Kingdom
- Department of Radiology & Nuclear Medicine, Amsterdam UMC, Vrije Universiteit, the Netherlands
| | - Xing Liu
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Yaou Liu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
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Li J, Wang Y, Weng J, Qu L, Wu M, Guo M, Sun J, Hu G, Gong X, Liu X, Duan Y, Zhuo Z, Jia W, Liu Y. Automated Determination of the H3 K27-Altered Status in Spinal Cord Diffuse Midline Glioma by Radiomics Based on T2-Weighted MR Images. AJNR Am J Neuroradiol 2023; 44:1464-1470. [PMID: 38081676 PMCID: PMC10714849 DOI: 10.3174/ajnr.a8056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 10/08/2023] [Indexed: 12/18/2023]
Abstract
BACKGROUND AND PURPOSE Conventional MR imaging is not sufficient to discern the H3 K27-altered status of spinal cord diffuse midline glioma. This study aimed to develop a radiomics-based model based on preoperative T2WI to determine the H3 K27-altered status of spinal cord diffuse midline glioma. MATERIALS AND METHODS Ninety-seven patients with confirmed spinal cord diffuse midline gliomas were retrospectively recruited and randomly assigned to the training (n = 67) and test (n = 30) sets. One hundred seven radiomics features were initially extracted from automatically-segmented tumors on T2WI, then 11 features selected by the Pearson correlation coefficient and the Kruskal-Wallis test were used to train and test a logistic regression model for predicting the H3 K27-altered status. Sensitivity analysis was performed using additional random splits of the training and test sets, as well as applying other classifiers for comparison. The performance of the model was evaluated through its accuracy, sensitivity, specificity, and area under the curve. Finally, a prospective set including 28 patients with spinal cord diffuse midline gliomas was used to validate the logistic regression model independently. RESULTS The logistic regression model accurately predicted the H3 K27-altered status with accuracies of 0.833 and 0.786, sensitivities of 0.813 and 0.750, specificities of 0.857 and 0.833, and areas under the curve of 0.839 and 0.818 in the test and prospective sets, respectively. Sensitivity analysis confirmed the robustness of the model, with predictive accuracies of 0.767-0.833. CONCLUSIONS Radiomics signatures based on preoperative T2WI could accurately predict the H3 K27-altered status of spinal cord diffuse midline glioma, providing potential benefits for clinical management.
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Affiliation(s)
- Junjie Li
- From the Department of Radiology (J.L., L.Q., M.W., M.G., J.S., Y.D., Z.Z., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - YongZhi Wang
- Department of Neurosurgery (Y.W., W.J.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jinyuan Weng
- Department of Medical Imaging Products (J.W., X.G.), Neusoft, Group Ltd., Shenyang, People's Republic of China
| | - Liying Qu
- From the Department of Radiology (J.L., L.Q., M.W., M.G., J.S., Y.D., Z.Z., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Minghao Wu
- From the Department of Radiology (J.L., L.Q., M.W., M.G., J.S., Y.D., Z.Z., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Min Guo
- From the Department of Radiology (J.L., L.Q., M.W., M.G., J.S., Y.D., Z.Z., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jun Sun
- From the Department of Radiology (J.L., L.Q., M.W., M.G., J.S., Y.D., Z.Z., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Geli Hu
- Clinical and Technical Support (G.H.), Philips Healthcare, Beijing, People's Republic of China
| | - Xiaodong Gong
- Department of Medical Imaging Products (J.W., X.G.), Neusoft, Group Ltd., Shenyang, People's Republic of China
| | - Xing Liu
- Department of Pathology (X.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yunyun Duan
- From the Department of Radiology (J.L., L.Q., M.W., M.G., J.S., Y.D., Z.Z., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Zhizheng Zhuo
- From the Department of Radiology (J.L., L.Q., M.W., M.G., J.S., Y.D., Z.Z., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Wenqing Jia
- Department of Neurosurgery (Y.W., W.J.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yaou Liu
- From the Department of Radiology (J.L., L.Q., M.W., M.G., J.S., Y.D., Z.Z., Y.L.), Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
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Jin Y, Cheng D, Duan Y, Zhuo Z, Weng J, Zhang C, Zhu M, Liu X, Du J, Hua T, Li H, Haller S, Barkhof F, Liu Y. "Soap bubble" sign as an imaging marker for posterior fossa ependymoma Group B. Neuroradiology 2023; 65:1707-1714. [PMID: 37837480 DOI: 10.1007/s00234-023-03231-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/03/2023] [Indexed: 10/16/2023]
Abstract
PURPOSE To investigate the predictive value of the "soap bubble" sign on molecular subtypes (Group A [PFA] and Group B [PFB]) of posterior fossa ependymomas (PF-EPNs). METHODS MRI scans of 227 PF-EPNs (internal retrospective discovery set) were evaluated by two independent neuroradiologists to assess the "soap bubble" sign, which was defined as clusters of cysts of various sizes that look like "soap bubbles" on T2-weighted images. Two independent cohorts (external validation set [n = 31] and prospective validation set [n = 27]) were collected to validate the "soap bubble" sign. RESULTS Across three datasets, the "soap bubble" sign was observed in 21 PFB cases (7.4% [21/285] of PF-EPNs and 12.9% [21/163] of PFB); none in PFA. Analysis of the internal retrospective discovery set demonstrated substantial interrater agreement (1st Rating: κ = 0.71 [0.53-0.90], 2nd Rating: κ = 0.83 [0.68-0.98]) and intrarater agreement (Rater 1: κ = 0.73 [0.55-0.91], Rater 2: κ = 0.74 [0.55-0.92]) for the "soap bubble" sign; all 13 cases positive for the "soap bubble" sign were PFB (p = 0.002; positive predictive value [PPV] = 100%, negative predictive value [NPV] = 44%, sensitivity = 10%, specificity = 100%). The findings from the external validation set and the prospective validation set were similar, all cases positive for the "soap bubble" sign were PFB (p < 0.001; PPV = 100%). CONCLUSION The "soap bubble" sign represents a highly specific imaging marker for the PFB molecular subtype of PF-EPNs.
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Affiliation(s)
- Ying Jin
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Dan Cheng
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Yunyun Duan
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Zhizheng Zhuo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Jinyuan Weng
- Department of Medical Imaging Product, Neusoft, Group Ltd., Shenyang, 110179, China
| | - Chengzhou Zhang
- Department of Radiology, Yantai Yuhuangding Hospital, Yantai, 264000, Shandong, China
| | - Mingwang Zhu
- Department of Radiology, Sanbo Brain Hospital, Capital Medical University, Beijing, 100070, China
| | - Xing Liu
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Jiang Du
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Tiantian Hua
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Hongfang Li
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
| | - Sven Haller
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- CIMC-Centre d'Imagerie Médicale de Cornavin, Geneva, Switzerland
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- Faculty of Medicine of the University of Geneva, Geneva, Switzerland
| | - Frederik Barkhof
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
- Queen Square Institute of Neurology and Center for Medical Image Computing, University College London, London, UK
| | - Yaou Liu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.
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Wu M, Jiang T, Guo M, Duan Y, Zhuo Z, Weng J, Xie C, Sun J, Li J, Cheng D, Liu X, Du J, Zhang X, Zhang Y, Liu Y. Amide proton transfer-weighted imaging and derived radiomics in the classification of adult-type diffuse gliomas. Eur Radiol 2023:10.1007/s00330-023-10343-6. [PMID: 37855851 DOI: 10.1007/s00330-023-10343-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/27/2023] [Accepted: 09/05/2023] [Indexed: 10/20/2023]
Abstract
OBJECTIVES To evaluate the utility of amide proton transfer-weighted (APTw) MRI imaging and its derived radiomics in classifying adult-type diffuse glioma. MATERIALS AND METHODS In this prospective study, APTw imaging was performed on 129 patients with adult-type diffuse gliomas. The mean APTw-related metrics (chemical exchange saturation transfer ratio (CESTR), CESTR normalized with the reference value (CESTRnr), and relaxation-compensated inverse magnetization transfer ratio (MTRRex)) and radiomic features within 3D tumor masks were extracted. APTw-radiomics models were developed using a support vector machine (SVM) classifier. Sensitivity analysis with tumor area of interest, different histogram cutoff values, and other classifiers were conducted. RESULTS CESTR, CESTRnr, and MTRRex in glioblastomas were all significantly higher (p < 0.0003) than those of oligodendrogliomas and astrocytomas, with no significant difference between oligodendrogliomas and astrocytomas. The APTw-related metrics for IDH-wildtype and high-grade gliomas were significantly higher (p < 0.001) than those for the IDH-mutant and low-grade gliomas, with area under the curve (AUCs) of 0.88 for CESTR. The CESTR-radiomics models demonstrated accuracies of 84% (AUC 0.87), 83% (AUC 0.83), 90% (AUC 0.95), and 84% (AUC 0.86) in predicting the IDH mutation status, differentiating glioblastomas from astrocytomas, distinguishing glioblastomas from oligodendrogliomas, and determining high/low grade prediction, respectively, but showed poor performance in distinguishing oligodendrogliomas from astrocytomas (accuracy 63%, AUC 0.63). The sensitivity analysis affirmed the robustness of the APTw signal and APTw-derived radiomics prediction models. CONCLUSION APTw imaging, along with its derived radiomics, presents a promising quantitative approach for prediction IDH mutation and grading adult-type diffuse glioma. CLINICAL RELEVANCE STATEMENT Amide proton transfer-weighted imaging, a quantitative imaging biomarker, coupled with its derived radiomics, offers a promising non-invasive approach for predicting IDH mutation status and grading adult-type diffuse gliomas, thereby informing individualized clinical diagnostics and treatment strategies. KEY POINTS • This study evaluates the differences of different amide proton transfer-weighted metrics across three molecular subtypes and their efficacy in classifying adult-type diffuse glioma. • Chemical exchange saturation transfer ratio normalized with the reference value and relaxation-compensated inverse magnetization transfer ratio effectively predicts IDH mutation/grading, notably the first one. • Amide proton transfer-weighted imaging and its derived radiomics holds potential to be used as a diagnostic tool in routine clinical characterizing adult-type diffuse glioma.
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Affiliation(s)
- Minghao Wu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Tongling Jiang
- Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Min Guo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yunyun Duan
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhizheng Zhuo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jinyuan Weng
- Department of Medical Imaging Product, Neusoft, Group Ltd, Shenyang, 110179, China
| | - Cong Xie
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jun Sun
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Junjie Li
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Dan Cheng
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xing Liu
- Department of Neuropathology, Beijing Neurosurgical Institute, Beijing, 10070, China
| | - Jiang Du
- Department of Neuropathology, Beijing Neurosurgical Institute, Beijing, 10070, China
| | | | - Yi Zhang
- Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Yaou Liu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
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Weng J, Ryckman J, Katz MS, Saeed H, Estes C, Naqa IE, Moreno AC, Yom SS. Dose Constraints and Planning Considerations for Thoracic Radiation Therapy: Delphi Consensus from a National Survey of Experts. Int J Radiat Oncol Biol Phys 2023; 117:e73. [PMID: 37786123 DOI: 10.1016/j.ijrobp.2023.06.808] [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) Many physicians refer to trial protocols or published guidelines (NCCN, QUANTEC, HyTEC) for dose-volume histogram (DVH) metrics. However, there may be variation in implementing these metrics during plan optimization. Some studies have suggested better outcomes for patients treated at high-volume, high-expertise centers. These differences may in part be due to greater standardization or center-specific treatment planning processes. We surveyed radiation oncologists with stated thoracic-specific expertise using the Delphi method to formulate consensus DVH metrics that would be considered ideal for high-quality radiation treatment plans. MATERIALS/METHODS Thoracic radiation oncology experts were identified using departmental websites of ACGME-accredited radiation oncology programs. After confirming their expertise, panelists were invited to submit their institutional templates and complete three rounds of questions related to normal organ dose constraints, target coverage metrics, prescribing practices, and other planning considerations. Queried radiation schemes included conventional fractionation, twice-daily fractionation, and stereotactic body radiation therapy (3 and 5 fractions). Preliminary consensus statements were generated using median values for DVH metrics and were iteratively refined in subsequent surveys. Consensus was pre-defined as ≥75% agreement among panelists. RESULTS A total of 194 experts were invited, and 100 agreed to participate. The panel was 28% female and included experts from 29 states with a median of 11 years of clinical experience (IQR 6-19). 89% specialized in 1-2 disease sites. Response rates for the Demographics, round 1, 2, and 3 surveys were 83%, 78%, 57%, and 55%, respectively. 93% of panelists believed that DVH metrics should provide thresholds for both optimal and acceptable criteria for treatment planning. 49 of the 96 proposed normal tissue dose constraint statements were iterated to consensus (Table 1), and 5 of 7 proposed target coverage metric statements achieved consensus. CONCLUSION This study highlights the heterogeneity in metrics used by thoracic radiation oncologists and provides levels of consensus on ideal and acceptable dose constraints as guidance for treatment planning. Future directions include using these statements to develop prescription templates and acceptance criteria for treatment planning systems for widespread use as well as extending this Delphi approach to additional disease sites.
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Affiliation(s)
- J Weng
- MD Anderson Cancer Center, Houston, TX
| | - J Ryckman
- Department of Radiation Oncology, West Virginia University Medicine, Camden Clark Medical Center, Parkersburg, WV
| | - M S Katz
- Radiation Oncology Associates, Lowell, MA
| | - H Saeed
- Lynn Cancer Institute, Boca Raton Regional Hospital, Baptist Health South Florida, Boca Raton, FL
| | - C Estes
- University of Kansas Medical Center, Kansas City, KS, United States
| | - I El Naqa
- H. Lee Moffitt Cancer Center and Research Institute, Department of Machine Learning, Tampa, FL
| | - A C Moreno
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S S Yom
- UCSF Medical Center-Mount Zion, San Francisco, CA
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Li J, Zhang P, Qu L, Sun T, Duan Y, Wu M, Weng J, Li Z, Gong X, Liu X, Wang Y, Jia W, Su X, Yue Q, Li J, Zhang Z, Barkhof F, Huang RY, Chang K, Sair H, Ye C, Zhang L, Zhuo Z, Liu Y. Deep Learning for Noninvasive Assessment of H3 K27M Mutation Status in Diffuse Midline Gliomas Using MR Imaging. J Magn Reson Imaging 2023; 58:850-861. [PMID: 36692205 DOI: 10.1002/jmri.28606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/05/2023] [Accepted: 01/07/2023] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Determination of H3 K27M mutation in diffuse midline glioma (DMG) is key for prognostic assessment and stratifying patient subgroups for clinical trials. MRI can noninvasively depict morphological and metabolic characteristics of H3 K27M mutant DMG. PURPOSE This study aimed to develop a deep learning (DL) approach to noninvasively predict H3 K27M mutation in DMG using T2-weighted images. STUDY TYPE Retrospective and prospective. POPULATION For diffuse midline brain gliomas, 341 patients from Center-1 (27 ± 19 years, 184 males), 42 patients from Center-2 (33 ± 19 years, 27 males) and 35 patients (37 ± 18 years, 24 males). For diffuse spinal cord gliomas, 133 patients from Center-1 (30 ± 15 years, 80 males). FIELD STRENGTH/SEQUENCE 5T and 3T, T2-weighted turbo spin echo imaging. ASSESSMENT Conventional radiological features were independently reviewed by two neuroradiologists. H3 K27M status was determined by histopathological examination. The Dice coefficient was used to evaluate segmentation performance. Classification performance was evaluated using accuracy, sensitivity, specificity, and area under the curve. STATISTICAL TESTS Pearson's Chi-squared test, Fisher's exact test, two-sample Student's t-test and Mann-Whitney U test. A two-sided P value <0.05 was considered statistically significant. RESULTS In the testing cohort, Dice coefficients of tumor segmentation using DL were 0.87 for diffuse midline brain and 0.81 for spinal cord gliomas. In the internal prospective testing dataset, the predictive accuracies, sensitivities, and specificities of H3 K27M mutation status were 92.1%, 98.2%, 82.9% in diffuse midline brain gliomas and 85.4%, 88.9%, 82.6% in spinal cord gliomas. Furthermore, this study showed that the performance generalizes to external institutions, with predictive accuracies of 85.7%-90.5%, sensitivities of 90.9%-96.0%, and specificities of 82.4%-83.3%. DATA CONCLUSION In this study, an automatic DL framework was developed and validated for accurately predicting H3 K27M mutation using T2-weighted images, which could contribute to the noninvasive determination of H3 K27M status for clinical decision-making. EVIDENCE LEVEL 2 Technical Efficacy: Stage 2.
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Affiliation(s)
- Junjie Li
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Peng Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Liying Qu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Ting Sun
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yunyun Duan
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Minghao Wu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jinyuan Weng
- Department of Medical Imaging Product, Neusoft, Group Ltd., Shenyang, People's Republic of China
| | - Zhaohui Li
- BioMind Inc., Beijing, People's Republic of China
| | - Xiaodong Gong
- Department of Medical Imaging Product, Neusoft, Group Ltd., Shenyang, People's Republic of China
| | - Xing Liu
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yongzhi Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Wenqing Jia
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xiaorui Su
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Qiang Yue
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Jianrui Li
- Department of Diagnostic Radiology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China
| | - Zhiqiang Zhang
- Department of Diagnostic Radiology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China
| | - Frederik Barkhof
- UCL Institutes of Neurology and Healthcare Engineering, London, UK
- Department of Radiology & Nuclear Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Raymond Y Huang
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ken Chang
- Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Haris Sair
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Chuyang Ye
- School of Information and Electronics, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Liwei Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Zhizheng Zhuo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yaou Liu
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
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Jiao Y, Zhang J, Yang X, Zhan T, Wu Z, Li Y, Zhao S, Li H, Weng J, Huo R, Wang J, Xu H, Sun Y, Wang S, Cao Y. Artificial Intelligence-Assisted Evaluation of the Spatial Relationship between Brain Arteriovenous Malformations and the Corticospinal Tract to Predict Postsurgical Motor Defects. AJNR Am J Neuroradiol 2023; 44:17-25. [PMID: 36549849 PMCID: PMC9835926 DOI: 10.3174/ajnr.a7735] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 11/07/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND PURPOSE Preoperative evaluation of brain AVMs is crucial for the selection of surgical candidates. Our goal was to use artificial intelligence to predict postsurgical motor defects in patients with brain AVMs involving motor-related areas. MATERIALS AND METHODS Eighty-three patients who underwent microsurgical resection of brain AVMs involving motor-related areas were retrospectively reviewed. Four artificial intelligence-based indicators were calculated with artificial intelligence on TOF-MRA and DTI, including FN5mm/50mm (the proportion of fiber numbers within 5-50mm from the lesion border), FN10mm/50mm (the same but within 10-50mm), FP5mm/50mm (the proportion of fiber voxel points within 5-50mm from the lesion border), and FP10mm/50mm (the same but within 10-50mm). The association between the variables and long-term postsurgical motor defects was analyzed using univariate and multivariate analyses. Least absolute shrinkage and selection operator regression with the Pearson correlation coefficient was used to select the optimal features to develop the machine learning model to predict postsurgical motor defects. The area under the curve was calculated to evaluate the predictive performance. RESULTS In patients with and without postsurgical motor defects, the mean FN5mm/50mm, FN10mm/50mm, FP5mm/50mm, and FP10mm/50mm were 0.24 (SD, 0.24) and 0.03 (SD, 0.06), 0.37 (SD, 0.27) and 0.06 (SD, 0.08), 0.06 (SD, 0.10) and 0.01 (SD, 0.02), and 0.10 (SD, 0.12) and 0.02 (SD, 0.05), respectively. Univariate and multivariate logistic analyses identified FN10mm/50mm as an independent risk factor for long-term postsurgical motor defects (P = .002). FN10mm/50mm achieved a mean area under the curve of 0.86 (SD, 0.08). The mean area under the curve of the machine learning model consisting of FN10mm/50mm, diffuseness, and the Spetzler-Martin score was 0.88 (SD, 0.07). CONCLUSIONS The artificial intelligence-based indicator, FN10mm/50mm, can reflect the lesion-fiber spatial relationship and act as a dominant predictor for postsurgical motor defects in patients with brain AVMs involving motor-related areas.
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Affiliation(s)
- Y Jiao
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - J Zhang
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - X Yang
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - T Zhan
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - Z Wu
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - Y Li
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - S Zhao
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - H Li
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - J Weng
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - R Huo
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - J Wang
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - H Xu
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - Y Sun
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - S Wang
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
| | - Y Cao
- From the Department of Neurosurgery (Y.J., J.Z., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases (Y.J., J.Z., X.Y., T.Z., Z.W., Y.L., S.Z., H.L., J. Weng, R.H., J. Wang, H.X., Y.S., S.W., Y.C.), Beijing, China
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Weng J, Dabaja B, Das P, Gunn G, Chronowski G, Bloom E, Lee P, Koong A, Ning M, Semien K, Sanders C, Ritchey R, Nguyen K, Hoffman K, Robinson I, Kerr A, Brokaw J, Liao Z, Nguyen Q. Radiation Therapy Decision Making Process and Operations for COVID-19 Positive Patients. Int J Radiat Oncol Biol Phys 2022. [PMCID: PMC9595469 DOI: 10.1016/j.ijrobp.2022.07.1722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Purpose/Objective(s) A challenging clinical dilemma during the COVID-19 pandemic is management of cancer patients who test positive for COVID. Given the need to balance the risk of disease progression with the risk of transmission to other patients and staff, radiation therapy for these patients requires careful consideration and modification of standard workflows. It is also critical to develop processes to mitigate radiation treatment interruption, which can affect patient outcomes. The objective of this study was to report the clinical operations and outcomes for COVID positive patients receiving radiation therapy during the pandemic at a tertiary cancer center including 2 network locations. Materials/Methods During March 2020 to March 2022, the Radiation Oncology COVID committee (RO COVID) developed an integrated process to triage patients, provide treatment recommendations, and implement infection control procedures to safely deliver radiation therapy to COVID positive patients. Policies were created for each center with multidisciplinary input from infectious disease, radiation oncology, radiation therapy, and nursing. All COVID positive patients were presented to the RO COVID group and evaluated for clinical urgency, benefit with radiation, and life expectancy. If deemed necessary, a limited planned break or hypofractionated regimen was recommended to minimize staff exposure. We conducted a retrospective review of COVID positive patients with different primary malignancies treated through the COVID positive pathway. Results A total of 68 COVID positive patients were treated with the COVID positive pathway (HN 15, Breast 9, CNS 8, GU 8, GYN, 7, Thoracic 6, GI 5, HEME 5, PED 3, SARC 2). The median age was 57.1 years (IQR 45.8-63.4) and 47% were female. There were 39 patients (57%) who were asymptomatic and were tested for routine pre-radiation screening or due to concerns of COVID exposure. Twenty-three (34%) patients were treated with palliative intent and 8 (12%) were treated for an emergent indication (i.e., spinal cord compression, bleeding). Thirteen (19%) patients were receiving radiation treatment, had a treatment break (7-21 days), and then resumed their radiation course. All treatments were successfully completed without known nosocomial spread of COVID to staff or other patients. Among this heterogenous group of patients, 58 (85%) were alive with a median follow up of 2 months (IQR 0.5-7.5). COVID infection may have contributed to 3 out of 10 deaths (4% of total cohort). The remaining deaths were due to progression of disease or other non-COVID causes. Conclusion In this study, COVID positive patients were safely treated with radiation therapy through a comprehensive decision making and clinical operations pathway taking into account evolving COVID guidelines for three different variant surges. Although limited in follow up, patient outcomes are promising with few COVID-related deaths and low overall mortality rates, even with hypofractionated regimens.
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Affiliation(s)
- J. Weng
- MD Anderson Cancer Center, Houston, TX,Corresponding author:
| | - B. Dabaja
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - P. Das
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - G.B. Gunn
- MD Anderson Cancer Center, Houston, TX
| | - G.M. Chronowski
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - P. Lee
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A.C. Koong
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M.S. Ning
- MD Anderson Cancer Center, Houston, TX
| | - K. Semien
- MD Anderson Cancer Center, Houston, TX
| | | | | | - K. Nguyen
- MD Anderson Cancer Center, Houston, TX
| | - K.E. Hoffman
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - I. Robinson
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A. Kerr
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - J. Brokaw
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Z. Liao
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Q.N. Nguyen
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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Andring L, Kelsey C, Weng J, Manzar G, Bailard N, Fellman B, Domingo M, Varkey J, Foster-Mills T, Kazantsev T, Lin L, Jhingran A, Colbert L, Eifel P, Klopp A, Joyner M. Baseline Characteristics of Patients Undergoing Brachytherapy for Gynecologic Cancer (GYN-BT) and the Role for an Enhanced Recovery Pathway (ERP). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1678] [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: 10/31/2022]
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Nakayama T, Oishi M, Weng J, Omori K, Kwon C, Nakazawa T, Nishibata T, Kinugasa F, Yoshida T, Nagasaka Y. 42P Antitumor activity of zolbetuximab combined with chemotherapy and anti-mouse PD-1 antibody (anti-mPD-1) in a syngeneic mouse model and a virtual preclinical trial using a quantitative systems pharmacology (QSP) model. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.069] [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: 11/01/2022] Open
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Wu L, Wu Z, Xiao Z, Ma Z, Weng J, Chen Y, Cao Y, Cao P, Xiao M, Zhang H, Duan H, Wang Q, Li J, Xu Y, Pu X, Li K. EP08.02-158 Final Analyses of ALTER-L018: A Randomized Phase II Trial of Anlotinib Plus Docetaxel vs Docetaxel as 2nd-line Therapy for EGFR-negative NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.841] [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: 10/14/2022]
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Wu X, Liu Z, Xu M, Xu S, Weng J. Rutaecarpine, a bioactive constituent isolated from tetradium ruticarpum, prevents endothelial inflammation. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.255] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Xu M, Wu X, Liu Z, Xu S, Weng J. A novel compound mouse model of diabetes, atherosclerosis and fatty liver using AAV8-PCSK9 injection in DB/DB mice. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.387] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Wu L, Wu Z, Xiao Z, Ma Z, Weng J, Chen Y, Cao Y, Cao P, Xiao M, Zhang H, Duan H, Wang Q, Li J, Xu Y, Pu X, Li K. P48.01 Anlotinib Plus Docetaxel vs Docetaxel for 2nd-Line Treatment of EGFR negative NSCLC (ALTER-L018): A Randomized Phase II Trial. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nishibata T, Weng J, Omori K, Sato Y, Nakazawa T, Suzuki T, Yamada T, Nakajo I, Kinugasa F, Yoshida T. 986P Antitumor effect of zolbetuximab combined with chemotherapeutic agents or an anti-mPD-1 antibody in syngeneic immune-competent mice. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1370] [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] Open
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Yang X, Wang Y, Wang W, Hu X, Zhou M, Weng J, Zhang L, Lu P, Lai Z, Wang S, Feng Q, Lu L. Tongxin formula protects H9c2 cardiomyocytes from cobalt chloride-induced hypoxic injury via inhibition of apoptosis. J Physiol Pharmacol 2021; 72. [PMID: 34810288 DOI: 10.26402/jpp.2021.3.05] [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] [Received: 04/02/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
In this study, the effect of the Tongxin formula (TXF) on the apoptosis of H9c2 cardiomyocytes induced by cobalt chloride (CoCl2) was investigated, and the potential mechanism was explored. A hypoxic injury model of H9c2 cardiomyocytes was established using CoCl2. The cell viability was measured using a Cell Counting Kit-8 assay. The lactate dehydrogenase (LDH) release and caspase-3 activity were measured using spectrophotometry. The apoptosis was measured via Annexin V-FITC/PI staining and flow cytometry. The changes in the mitochondrial membrane potential were examined using immunofluorescence microscopy following the loading of JC-1 probes. The expressions of apoptosis-related proteins and key proteins in the phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) pathway were examined via immunoblotting. The different TXF concentrations studied significantly improved the percentage of viability of cardiomyocytes with hypoxic injury, and the LDH release, apoptotic rate, caspase-3 activity, and levels of cleaved caspase-3 protein were reduced in the injured cells. Additionally, the TXF group had increased mitochondrial membrane potential, upregulated expression of Bcl-2 and p-Akt proteins, and significantly reduced expression of cleaved caspase-3 protein in the cells with hypoxic injury. Moreover, in the TXF group, the treatment significantly reduced the BAX protein expression, but the difference was not statistically significant compared with the CoCl2 group. In this study, TXF regulated the expression of apoptosis-related proteins, inhibited apoptosis, increased the mitochondrial membrane potential, and alleviated damage to the mitochondrial membrane, thereby protecting the cardiomyocytes from hypoxic injury. The underlying mechanism could be related to activation of the PI3K/Akt signaling pathway and upregulation of the Bcl-2 protein.
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Affiliation(s)
- X Yang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Y Wang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - W Wang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - X Hu
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - M Zhou
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - J Weng
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - L Zhang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - P Lu
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Z Lai
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - S Wang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Q Feng
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - L Lu
- Department of Neonatology, International Peace Maternity and Child Health Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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19
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Huang W, Li P, Xu H, Xu K, Weng J, Zhang Y, Liu J. P76.92 TKI and Intrathoracic Perfusion in First-line Stage IV Lung Adenocarcinoma with EGFR Mutation and Malignant Pleural Effusion. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1149] [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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20
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Weng J, Xie M, Xu Z, Wang Z. Comment on "Prognostic factors and survival in Ewing's sarcoma treated by limb salvage surgery". Clin Transl Oncol 2019; 22:956. [PMID: 31571154 DOI: 10.1007/s12094-019-02212-w] [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] [Received: 07/02/2019] [Accepted: 09/13/2019] [Indexed: 10/25/2022]
Affiliation(s)
- J Weng
- Department of Emergency Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - M Xie
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Z Xu
- Department of Emergency Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Z Wang
- Department of Emergency Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China. .,Department of General Practice, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325000, China.
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21
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Cho R, Weng J, Lynch K, Ng P, Brown C, Vikulova D, Hoens A, Brunham L, Pimstone S. UNDERSTANDING THE PRIORITIES OF YOUNG ADULTS WITH ATHEROSCLEROTIC CARDIOVASCULAR DISEASE AND THEIR FAMILY MEMBERS: AN EXPLORATORY MIXED-METHODS STUDY. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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22
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Yang CL, Sun YH, Yu WH, Yin XZ, Weng J, Feng B, Feng B. RETRACTED: Modulation of macrophage phenotype through controlled release of interleukin-4 from gelatine coatings on titanium surfaces. Eur Cell Mater 2018; 36:15-29. [PMID: 30047980 DOI: 10.22203/ecm.v036a02] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 01/31/2023] Open
Abstract
Pro-inflammatory phenotype (M1) macrophages initiate angiogenesis, while their prolonged activation can induce chronic inflammation. Anti-inflammatory phenotype (M2) macrophages promote vessel maturation and tissue regeneration. Biomaterials which can promote M2 polarisation after appropriate inflammation should enhance angiogenesis and wound healing. Herein, Interleukin-4 (IL-4), an anti-inflammatory cytokine, was adsorbed onto a titanium surface. Then, a genipin cross-linked gelatine hydrogel was coated onto the surface to delay IL-4 release. The cross-linking degree of the hydrogel was modulated by the different amount of genipin to control release of IL-4. When 0.7 wt% (weight %) genipin was used as a cross-linker, the sample (GG07-I) released less IL-4 within the first several days, followed by a sustained release time to 14 d. Meanwhile, the release rate of IL-4 in GG07-I reached a peak between 3 d and 7 d. In culture with macrophages in vitro, GG07-I and GG07 exhibited good cytocompatibility. The phenotypical switch of macrophages stimulated by the samples was determined by FACS, ELISA and PCR. Macrophages cultured with GG07-I, GG07 and PT were firstly activated to the M1 phenotype by interferon-gamma (IFN-γ). Then, due to the release of IL-4 in 5 to 7 d, GG07-I enhanced CD206, increased the secretion and gene expression of M2 marker, such as interleukin-10 (IL-10), arginase-1 (ARG-1) and platelet derived growth factor-BB (PDGF- BB). GG07-I prompted the switch from M1 to M2 phenotype. Those appropriate secretion of cytokines would benefit both vascularisation and osseointegration. Thus, the biomaterial directing inflammatory reaction has good prospects for clinical treatments.
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Affiliation(s)
| | | | | | | | | | - B Feng
- Key Laboratory of Advanced Technology for Materials (Ministry of Education), School of Materials Science and Engineering, University of the Southwest Jiaotong University, Jinniu District, Chengdu,
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23
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Spadola C, Zhou ES, Rottapel R, Gou N, Johnson DA, Weng J, Chen J, Redline S, Bertisch SM. 1047 A Community-Based Sleep Health and Yoga Intervention to Improve Sleep Outcomes among Low-income and Racial/Ethnic Minority Adults. Sleep 2018. [DOI: 10.1093/sleep/zsy061.1046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- C Spadola
- Harvard Medical School & Brigham and Women’s Hospital, Boston, MA
| | - E S Zhou
- Dana-Farber Cancer Institute, Boston, MA
| | - R Rottapel
- Harvard Medical School & Brigham and Women’s Hospital, Boston, MA
| | - N Gou
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
| | - D A Johnson
- Harvard Medical School & Brigham and Women’s Hospital, Boston, MA
| | - J Weng
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA
| | - J Chen
- Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA
| | - S Redline
- Harvard Medical School & Brigham and Women’s Hospital, Boston, MA
| | - S M Bertisch
- Division of Sleep Medicine, Harvard Medical School, Boston, MA
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24
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Quante M, Mariani S, Weng J, Marinac C, Kaplan E, Rueschman M, Mitchell J, James P, Hipp J, Cespedes Feliciano E, Wang R, Redline S. 0162 Zeitgebers And Their Association With Rest-activity Patterns. Sleep 2018. [DOI: 10.1093/sleep/zsy061.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M Quante
- University of Tuebingen, Germany, Tuebingen, GERMANY
| | - S Mariani
- Brigham and Women’s Hospital, Department of Medicine, Division of Sleep and Circadian Disorders, Boston, MA
| | - J Weng
- Brigham and Women’s Hospital, Department of Medicine, Division of Sleep and Circadian Disorders, Boston, MA
| | - C Marinac
- Dana-Farber Cancer Institute, Boston, MA, Boston, MA
| | - E Kaplan
- Brigham and Women’s Hospital, Department of Medicine, Division of Sleep and Circadian Disorders, Boston, MA
| | - M Rueschman
- Brigham and Women’s Hospital, Department of Medicine, Division of Sleep and Circadian Disorders, Boston, MA
| | - J Mitchell
- Children’s Hospital of Philadelphia, Philadelphia, PA, Philadelphia, PA
| | - P James
- Harvard Medical School, Boston, MA
| | - J Hipp
- NC State University, Raleigh, NC, Raleigh, NC
| | | | - R Wang
- Brigham and Women’s Hospital, Department of Medicine, Division of Sleep and Circadian Disorders, Boston, MA
| | - S Redline
- Brigham and Women’s Hospital, Department of Medicine, Division of Sleep and Circadian Disorders, Boston, MA
- Brigham and Women’s Hospital, Department of Medicine, Division of Sleep and Circadian Disorders, Boston, MA
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25
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Kwon Y, Mariani S, Gadi S, Weng J, Jacobs DR, Punjabi N, Redline S. 0450 Characterization Of Lung To Finger Circulation Time: The Multi-ethnic Study Of Atherosclerosis. Sleep 2018. [DOI: 10.1093/sleep/zsy061.449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Kwon
- University of Virginia School of Medicine, Charlottesvillee, VA
| | - S Mariani
- Brigham & Women’s Hospital; Harvard Medical School, Boston, MA
| | - S Gadi
- University of Virginia School of Medicine, Charlottesville, VA
| | - J Weng
- Brigham & Women’s Hospital; Harvard Medical School, Boston, MA
| | - D R Jacobs
- University of Minnesota School of Public Health,, Minneapolis, MN
| | - N Punjabi
- Johns Hopkins School of Medicine, Baltimore, MD
| | - S Redline
- Brigham & Women’s Hospital; Harvard Medical School, Bosston, MA
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26
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Weng J, Bertisch S, Lutsey P, Kaufman J, McClelland R, Redline S. 0364 Insomnia with Objective Short Sleep Duration and Coronary Artery Calcification: Multi-Ethnic Study of Atherosclerosis. Sleep 2018. [DOI: 10.1093/sleep/zsy061.363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J Weng
- Brigham and Women’s Hospital, Boston, MA
| | | | - P Lutsey
- School of Public Health, University of Minnesota, Minneapolis, MN
| | - J Kaufman
- School of Public Health, University of Washington, Seattle, WA
| | - R McClelland
- School of Public Health, University of Washington, Seattle, WA
| | - S Redline
- Brigham and Women’s Hospital, Boston, MA
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27
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Weng J, Wu H, Wang Z. Risk factors for postoperative ileus after colorectal cancer surgery: methodological issues. Colorectal Dis 2018; 20:351-352. [PMID: 29411484 DOI: 10.1111/codi.14043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 10/03/2017] [Indexed: 01/05/2023]
Affiliation(s)
- J Weng
- Department of Emergency Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - H Wu
- Department of Emergency Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Z Wang
- Department of Emergency Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of General Practice, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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28
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Weng J, Cai B, Chen J, Chen B, Wu H, Wen C, Sun F, Hu L, Chen C, Wang X, Wang Z. Metabolic changes in methomyl poisoned rats treated by vitamin E. Hum Exp Toxicol 2018; 37:390-398. [PMID: 28425351 DOI: 10.1177/0960327117705428] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this study, we developed a serum and urine metabolomic method based on gas chromatography-mass spectrometry (GC-MS) combination with biomedical results to evaluate the effect of vitamin E treatment on methomyl poisoning rats. The rats were divided into three groups: the control group, methomyl poisoning group, and vitamin E treatment group. Partial least squares discriminate analysis (PLS-DA) showed that methomyl poisoning induced metabolic perturbations. Compared to the control group, based on the urinary metabolomics data, the level of ribitol, l-proline, xylitol, hydrocinnamic acid, 11-cis-octadecenoic acid, octadecanoic acid, and hexadecanoic acid of methomyl poisoning group increased, while the level of 2,3,4-trihydroxybutyric acid, ethanimidic acid, pantothenic acid, and retinoic acid decreased. Vitamin E pretreatment effectively normalized the levels of metabolites in rat urine in vitamin E treatment group. There was no significant difference in rat plasma metabolomic data after acute methomyl poisoning. The results indicate that metabolomic method based on GC-MS may be useful to elucidate the vitamin E treatment for methomyl poisoning.
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Affiliation(s)
- J Weng
- 1 The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - B Cai
- 1 The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - J Chen
- 2 Laboratory Animal Centre of Wenzhou Medical University, Wenzhou, China
| | - B Chen
- 2 Laboratory Animal Centre of Wenzhou Medical University, Wenzhou, China
| | - H Wu
- 1 The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - C Wen
- 2 Laboratory Animal Centre of Wenzhou Medical University, Wenzhou, China
| | - F Sun
- 2 Laboratory Animal Centre of Wenzhou Medical University, Wenzhou, China
| | - L Hu
- 3 The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - C Chen
- 3 The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - X Wang
- 2 Laboratory Animal Centre of Wenzhou Medical University, Wenzhou, China
| | - Z Wang
- 1 The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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29
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Abstract
A comparative investigation on the possibility of hydroxyapatite (HA) coating and pure Ti column to form biological sealing with skin tissue was completed in this study. HA coating and pure Ti column were percutaneously implanted in the tibia of rabbits. Compared with titanium (Ti) implant, HA coating forms epithelial sealing with skin tissue at 6 weeks postoperatively, while the Ti implant may loosen from the implanted site and be lost. The Ti column loosing rate at this time was 50%. However, once the Ti implant becomes fixed with the bone tissue, it can form epithelial sealing with skin tissue just like the HA coating, at 8 weeks postoperatively. At 8 weeks postoperatively, the epithelial sealing is not destroyed in spite of the fact that the HA coating is biodegraded. Our results show that the HA coating can become fixed with the bone faster than the Ti, which is beneficial for epithelial sealing formation. The main role of HA coating for epithelial sealing is beneficial for sealing at the initial period after it is implanted.
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Affiliation(s)
- B.C. Yang
- Institute of Materials Science and Technology, Sichuan University, Chengdu, Sichuan - China
| | - J. Weng
- Institute of Materials Science and Technology, Sichuan University, Chengdu, Sichuan - China
| | - X.D. Li
- Institute of Materials Science and Technology, Sichuan University, Chengdu, Sichuan - China
| | - Z.J. Yang
- Institute of Materials Science and Technology, Sichuan University, Chengdu, Sichuan - China
| | - J.M. Feng
- Institute of Materials Science and Technology, Sichuan University, Chengdu, Sichuan - China
| | - J.Y Chen
- Institute of Materials Science and Technology, Sichuan University, Chengdu, Sichuan - China
| | - X.D. Zhang
- Institute of Materials Science and Technology, Sichuan University, Chengdu, Sichuan - China
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30
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Xie S, Zhang X, Zhou Z, Li X, Huang Y, Zhang J, Weng J. Identification of genes alternatively spliced in developing maize endosperm. Plant Biol (Stuttg) 2018; 20:59-66. [PMID: 28945323 DOI: 10.1111/plb.12631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/17/2017] [Indexed: 06/07/2023]
Abstract
The process of alternative splicing is critical for the regulation of growth and development of plants. Thus far, little is known about the role of alternative splicing in the regulation of maize (Zea mays L.) endosperm development. RNA sequencing (RNA-seq) data of endosperms from two maize inbred lines, Mo17 and Ji419, at 15 and 25 days after pollination (DAP), respectively, were used to identify genes that were alternatively spliced during endosperm development. Intron retention (IR) in GRMZM2G005887 was further validated using PCR and re-sequencing technologies. In total, 49,000 alternatively spliced events and ca. 20,000 alternatively spliced genes were identified in the two maize inbred lines. Of these, 30 genes involved in amino acid biosynthesis and starch biosynthesis were identified, with IR occurring only in a specific sample, and were significantly co-expressed with ten well-known genes related to maize endosperm development. Moreover, IR in GRMZM2G005887, which encodes a cysteine synthase, was confirmed to occur only in the endosperm of Mo17 at 15 DAP, resulting in the retention of a 121-bp fragment in its 5' untranslated region. Two cis-acting regulatory elements, CAAT-box and TATA-box were observed in the retained fragment in Mo17 at 15 DAP; this could regulate the expression of this gene and influence endosperm development. The results suggest that the 30 genes with IR identified herein might be associated with maize endosperm development, and are likely to play important roles in the developing maize endosperm.
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Affiliation(s)
- S Xie
- College of Life Science, Sichuan Agricultural University, Ya'an, China
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - X Zhang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Z Zhou
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - X Li
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Y Huang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - J Zhang
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - J Weng
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
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31
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Ramos A, Weng J, Wallace D, Petrov M, Wohlgemuth W, Sotres-Alvarez D, Loredo J, Reid K, Zee P, Mossavar-Rahmani Y, Patel S. Actigraphic sleep patterns and hypertension in the Hispanic community health study/study of Latinos. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.806] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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Lai Y, Weng J, Wei X, Qin L, Lai P, Zhao R, Jiang Z, Li B, Lin S, Wang S, Wu Q, Tang Z, Liu P, Pei D, Yao Y, Du X, Li P. Toll-like receptor 2 costimulation potentiates the antitumor efficacy of CAR T Cells. Leukemia 2017; 32:801-808. [PMID: 28841215 DOI: 10.1038/leu.2017.249] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 07/20/2017] [Accepted: 07/24/2017] [Indexed: 01/03/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell immunotherapies have shown unprecedented success in treating leukemia but limited clinical efficacy in solid tumors. Here, we generated 1928zT2 and m28zT2, targeting CD19 and mesothelin, respectively, by introducing the Toll/interleukin-1 receptor domain of Toll-like receptor 2 (TLR2) to 1928z and m28z. T cells expressing 1928zT2 or m28zT2 showed improved expansion, persistency and effector function against CD19+ leukemia or mesothelin+ solid tumors respectively in vitro and in vivo. In a patient with relapsed B-cell acute lymphoblastic leukemia, a single dose of 5 × 104/kg 1928zT2 T cells resulted in robust expansion and leukemia eradication and led to complete remission. Hence, our results demonstrate that TLR2 signaling can contribute to the efficacy of CAR T cells. Further clinical trials are warranted to establish the safety and efficacy of this approach.
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Affiliation(s)
- Y Lai
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - J Weng
- Department of Hematology, Guangdong General Hospital/Guangdong Academy of Medical Sciences, Guangzhou, China
| | - X Wei
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - L Qin
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - P Lai
- Department of Hematology, Guangdong General Hospital/Guangdong Academy of Medical Sciences, Guangzhou, China
| | - R Zhao
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Z Jiang
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - B Li
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - S Lin
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - S Wang
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Q Wu
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Z Tang
- Guangdong Zhaotai InVivo Biomedicine Co. Ltd., Guangzhou, China.,Hunan Zhaotai Yongren Medical Innovation Co. Ltd., Changsha, China
| | - P Liu
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - D Pei
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Y Yao
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - X Du
- Department of Hematology, Guangdong General Hospital/Guangdong Academy of Medical Sciences, Guangzhou, China
| | - P Li
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Department of Abdominal Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
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Liang H, Xu W, Zhou L, Yang W, Weng J. Differential increments of basal glucagon-like-1 peptide concentration among SLC47A1 rs2289669 genotypes were associated with inter-individual variability in glycaemic response to metformin in Chinese people with newly diagnosed Type 2 diabetes. Diabet Med 2017; 34:987-992. [PMID: 28321905 DOI: 10.1111/dme.13351] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/14/2017] [Indexed: 12/24/2022]
Abstract
AIM To elucidate the effects of rs2289669, an intron variant of the SLC47A1 gene, on glucose response to metformin in Chinese people with newly diagnosed Type 2 diabetes. METHODS Rs2289669 was genotyped, using Sequenom, in 291 participants receiving 48 weeks of metformin monotherapy. The changes in HbA1c were compared among rs2289669 genotypes, and associations with rs2289669 were evaluated using linear regression analysis. RESULTS We found that, compared with participants with a homozygous G allele, those carrying the minor A allele had significantly greater HbA1c reduction and greater increases in basal glucagon-like peptide-1 concentration. Regression analysis showed that there was a significant association between rs2289669 and the glucose response to metformin after adjusting for confounding factors, except for changes in basal glucagon-like peptide-1, for which an association was not observed. CONCLUSIONS Our findings suggest that rs2289669 might help predict the glycaemic response to metformin in Chinese people newly diagnosed with Type 2 diabetes, and that differential increases in basal glucagon-like peptide-1 concentration among rs2289669 genotypes might be associated with inter-individual response to metformin.
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Affiliation(s)
- H Liang
- Department of Endocrinology and Metabolism, Third Affiliated Hospital of Sun Yat-Sen University and Guangdong Provincial Key Laboratory of Diabetology, Guangzhou
| | - W Xu
- Department of Endocrinology and Metabolism, Third Affiliated Hospital of Sun Yat-Sen University and Guangdong Provincial Key Laboratory of Diabetology, Guangzhou
| | - L Zhou
- Department of Endocrinology and Metabolism, Third Affiliated Hospital of Sun Yat-Sen University and Guangdong Provincial Key Laboratory of Diabetology, Guangzhou
| | - W Yang
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
| | - J Weng
- Department of Endocrinology and Metabolism, Third Affiliated Hospital of Sun Yat-Sen University and Guangdong Provincial Key Laboratory of Diabetology, Guangzhou
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Geovanini GR, Wang R, Weng J, Shea S, Jenny NS, Libby P, Redline S. 0447 AGE AND SEX MODIFY THE ASSOCIATION BETWEEN OSA AND TRADITIONAL AND NOVEL CARDIOVASCULAR RISK FACTORS: THE MULTI-ETHNIC STUDY OF ATHEROSCLEROSIS (MESA). Sleep 2017. [DOI: 10.1093/sleepj/zsx050.446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Djonlagic I, Weng J, Johnson D, Marani S, Purcell S, Fitzpatrick A, Frazier-Wood A, Seeman T, Nguyen H, Luchsinger J, Rapp S, Redline S. 0754 ASSOCIATIONS BETWEEN SLEEP EFFICIENCY AND COGNITIVE FUNCTION IN THE MULTI-ETHNIC STUDY OF ATHEROSCLEROSIS (MESA). Sleep 2017. [DOI: 10.1093/sleepj/zsx050.753] [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: 11/13/2022] Open
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Abbott S, Weng J, Reid K, Daviglus M, Gallo L, Loredo J, Nyenhuis S, Penedo F, Ramos A, Shah N, Sotres-Alvarez D, Wohlgemuth W, Patel S, Zee P. 1016 SLEEP-WAKE TIMING AND STABILITY ARE ASSOCIATED WITH INCREASED BLOOD PRESSURE IN THE SUEÑO ANCILLARY STUDY OF THE HISPANIC COMMUNITY HEALTH STUDY/STUDY OF LATINOS (HCHS/SOL). Sleep 2017. [DOI: 10.1093/sleepj/zsx050.1015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Dudley KA, Johnson DA, Weng J, Wallace DM, Alcantara C, Wallace M, Ramos AR, Mossavar-Rahmani Y, Perreira K, Zee PC, Salazar ZU, Redline S, Reid KJ, Sotres-Alvarez D, Patel SR. 0838 ACCULTURATION AND SLEEP PATTERNS IN U.S. HISPANIC/LATINOS: THE HISPANIC COMMUNITY HEALTH STUDY/STUDY OF LATINOS (HCHS/SOL) SUEÑO ANCILLARY STUDY. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Quante M, Mitchell JA, Godbole S, James P, Hipp A, Marinac CR, Mariani S, Cespedes Feliciano EM, Glanz K, Laden F, Wang R, Weng J, Redline S, Kerr J. 0693 VARIATION IN ACTIGRAPHY-ESTIMATED REST-ACTIVITY PATTERNS BY DEMOGRAPHIC FACTORS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.692] [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: 11/13/2022] Open
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Geng S, Weng J, Deng C, Li M, Lu Z, Wu P, Huang X, Lai P, Du X. Expression of PD-1, PD-L1 and PD-L2 in Patients with Myelodysplastic Syndromes and its Clinic Relationship. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30296-5] [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: 11/29/2022]
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40
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Geng S, Weng J, Lin M, Wu P, Deng C, Lu Z, Huang X, Lai P, Zhang H, Du X. The Abnormal Expression of B and T Lymphocyte Attenuator in Patients with Myelodysplastic Syndromes. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30297-7] [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: 10/19/2022]
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41
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Luk AO, Li X, Zhang Y, Guo X, Jia W, Li W, Weng J, Yang W, Chan WB, Ozaki R, Tsang CC, Mukhopadhyay M, Ojha AK, Hong EG, Yoon KH, Sobrepena L, Toledo RM, Duran M, Sheu W, Q Do T, Nguyen TK, Ma RC, Kong AP, Chow CC, Tong PC, So WY, Chan JC. Quality of care in patients with diabetic kidney disease in Asia: The Joint Asia Diabetes Evaluation (JADE) Registry. Diabet Med 2016; 33:1230-9. [PMID: 26511783 DOI: 10.1111/dme.13014] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/26/2015] [Indexed: 12/18/2022]
Abstract
AIMS Diabetic kidney disease independently predicts cardiovascular disease and premature death. We examined the burden of chronic kidney disease (CKD, defined as an estimated GFR < 60 ml/min/1.73 m(2) ) and quality of care in a cross-sectional survey of adults (age ≥ 18 years) with Type 2 diabetes across Asia. METHODS The Joint Asia Diabetes Evaluation programme is a disease-management programme implemented using an electronic portal that systematically captures clinical characteristics of all patients enrolled. Between July 2007 and December 2012, data on 28 110 consecutively enrolled patients (China: 3415, Hong Kong: 15 196, India: 3714, Korea: 1651, Philippines: 3364, Vietnam: 692, Taiwan: 78) were analysed. RESULTS In this survey, 15.9% of patients had CKD, 25.0% had microalbuminuria and 12.5% had macroalbuminuria. Patients with CKD were less likely to achieve HbA1c < 53 mmol/mol (7.0%) (36.0% vs. 42.3%) and blood pressure < 130/80 mmHg (20.8% vs. 35.3%), and were more likely to have retinopathy (26.2% vs. 8.7%), sensory neuropathy (29.0% vs. 7.7%), cardiovascular disease (26.6% vs. 8.7%) and self-reported hypoglycaemia (18.9% vs. 8.2%). Despite high frequencies of albuminuria (74.8%) and dyslipidaemia (93.0%) among CKD patients, only 49.0% were using renin-angiotensin system inhibitors and 53.6% were on statins. On logistic regression, old age, male gender, tobacco use, long disease duration, high HbA1c , blood pressure and BMI, and low LDL cholesterol were independently associated with CKD (all P < 0.05). CONCLUSIONS The poor control of risk factors, suboptimal use of organ-protective drugs and high frequencies of hypoglycaemia highlight major treatment gaps in patients with diabetic kidney disease in Asia.
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Affiliation(s)
- A O Luk
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - X Li
- Asia Diabetes Foundation, Prince of Wales Hospital, Hong Kong SAR, China
| | - Y Zhang
- Asia Diabetes Foundation, Prince of Wales Hospital, Hong Kong SAR, China
| | - X Guo
- Department of Endocrinology, Peking University First Hospital, Beijing, China
| | - W Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - W Li
- Peking Union Medical College Hospital, Beijing, China
| | - J Weng
- The Third Affiliated Hospital of Sun Yat-Sen University, Guangdong, Beijing, China
| | - W Yang
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
| | - W B Chan
- Qualigenics Diabetes Centre, Hong Kong SAR, China
| | - R Ozaki
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - C C Tsang
- Alice Ho Nethersole Hospital, Hong Kong SAR, China
| | | | | | - E G Hong
- Hallym University College of Medicine, Gangwon-do, Korea
| | - K H Yoon
- The Catholic University of Korea, Seocho-gu, Korea
| | - L Sobrepena
- Heart of Jesus Hospital, San Jose City, Philippines
| | - R M Toledo
- Senor Sto. Nino Hospital, Tarlac, Philippines
| | - M Duran
- New Bilibid Prison Hospital, Bureau of Corrections, Muntinlupa, Philippines
| | - W Sheu
- Taichung Veterans General Hospital, Taichung, Taiwan
| | - T Q Do
- Bach Mai Hospital, Hanoi, Vietnam
| | - T K Nguyen
- HCMC University of Pharmaceutical and Medicine, Ho Chi Minh City, Vietnam
| | - R C Ma
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - A P Kong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - C C Chow
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong SAR, China
| | - P C Tong
- Qualigenics Diabetes Centre, Hong Kong SAR, China
| | - W Y So
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - J C Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Asia Diabetes Foundation, Prince of Wales Hospital, Hong Kong SAR, China
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Zhang S, Huang D, Weng J, Huang Y, Liu S, Zhang Q, Li N, Wen M, Zhu G, Lin F, Gu W. Neutralization of Interleukin-17 Attenuates Cholestatic Liver Fibrosis in Mice. Scand J Immunol 2016; 83:102-8. [PMID: 26484852 DOI: 10.1111/sji.12395] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 10/15/2015] [Indexed: 12/20/2022]
Abstract
Anti-inflammation strategy is one of the proposed therapeutic approaches to hepatic fibrosis. IL-17 is critical in inflammation, but the role of IL-17 in liver fibrosis has not yet been elucidated. In this study, we investigate the role of IL-17 on bile duct ligation-induced liver injury and fibrosis in C57BL/6 mice. Animals were sacrificed at designated times, and serum and liver tissues were collected for analysis of liver function and serum IL-6, IL-1β, tumour necrosis factor-alpha (TNF-α) and transforming growth factor-β (TGF-β) levels. IL-17 blockade with anti-IL-17A mAb significantly improved liver function and decreased hepatocellular necrosis, pro-inflammatory cytokines, neutrophils and macrophages influx. Furthermore, CD3 + and CD8 + lymphocytes, neutrophils and macrophages were found to express IL-17, and neutrophils are the principal IL-17-producing cells after BDL-induced liver injury. These data indicated that IL-17 signal contributes to the pathogenesis of cholestatic liver injury and blocked of IL-17 could potentially benefit patients with cholestatic liver disease.
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Affiliation(s)
- S Zhang
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - D Huang
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - J Weng
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - Y Huang
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - S Liu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - Q Zhang
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - N Li
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - M Wen
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - G Zhu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - F Lin
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
| | - W Gu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou Digestive Disease Center, Guangzhou, 510180, China
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Yang H, Xu W, Zhou Z, Liu J, Li X, Chen L, Weng J, Yu Z. Curcumin Attenuates Urinary Excretion of Albumin in Type II Diabetic Patients with Enhancing Nuclear Factor Erythroid-Derived 2-Like 2 (Nrf2) System and Repressing Inflammatory Signaling Efficacies. Exp Clin Endocrinol Diabetes 2015; 123:360-7. [DOI: 10.1055/s-0035-1545345] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- H. Yang
- Biomedical Drug R&D Center, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - W. Xu
- Biomedical Drug R&D Center, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Z. Zhou
- Biomedical Drug R&D Center, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - J. Liu
- Department of Endocrinology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - X. Li
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - L. Chen
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - J. Weng
- Department of Endocrinology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Z. Yu
- Biomedical Drug R&D Center, Fujian University of Traditional Chinese Medicine, Fuzhou, China
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Xu W, Bi Y, Sun Z, Li J, Guo L, Yang T, Wu G, Shi L, Feng Z, Qiu L, Li Q, Guo X, Luo Z, Lu J, Shan Z, Yang W, Ji Q, Yan L, Li H, Yu X, Li S, Zhou Z, Lv X, Liang Z, Lin S, Zeng L, Yan J, Ji L, Weng J. Comparison of the effects on glycaemic control and β-cell function in newly diagnosed type 2 diabetes patients of treatment with exenatide, insulin or pioglitazone: a multicentre randomized parallel-group trial (the CONFIDENCE study). J Intern Med 2015; 277:137-50. [PMID: 25039675 DOI: 10.1111/joim.12293] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Progressive β-cell dysfunction hinders the maintenance of glycaemic control in type 2 diabetes, but comparative data on β-cell-protective therapies are lacking in the early stage of type 2 diabetes. Here we evaluated the comparative glycaemic efficacy and impact on β-cell function of three antihyperglycaemic agents that have a β-cell-protective effect, exenatide, insulin and pioglitazone, in newly diagnosed patients with type 2 diabetes. DESIGN AND METHODS In this 48-week, multicentre, parallel-group study, 416 patients newly diagnosed with type 2 diabetes were randomly assigned 1 : 1 : 1 to receive exenatide, insulin or pioglitazone. The primary end-point was the change in glycosylated haemoglobin (HbA1c) from baseline. Secondary end-points included effects on weight, blood pressure, lipid profiles and β-cell function assessed by homeostasis model assessment, fasting proinsulin:insulin (PI/I), disposition index (DI) and acute insulin response (AIR). RESULTS At week 48, mean [95% confidence interval (CI)] HbA1c changes from baseline were -1.8% (-1.55% to -2.05%) with exenatide, -1.7% (-1.52% to -1.96%) with insulin and -1.5% (-1.23% to -1.71%) with pioglitazone. Treatment differences were -0.20% (95% CI -0.46% to 0.06%) for exenatide versus insulin (P = 0.185), and -0.37% (95% CI -0.63% to -0.12%) for exenatide versus pioglitazone (P = 0.002). Significant improvements from baseline in AIR, PI/I and DI were observed with all treatments, with the greatest improvements in DI, as well as weight, blood pressure and lipid profile, observed with exenatide. CONCLUSIONS All three agents showed efficacy regarding glycaemic control and metabolic benefits; however, exenatide showed the greatest efficacy. β-cell function improved in all treatment groups; hence, early initiation of β-cell-protective therapy may halt the decline in β-cell function in type 2 diabetes.
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Affiliation(s)
- W Xu
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Liu Y, Weng J, Huang S, Shen Y, Sheng X, Han Y, Xu M, Weng Q. Immunoreactivities of PPARγ2, leptin and leptin receptor in oviduct of Chinese brown frog during breeding period and pre-hibernation. Eur J Histochem 2014; 58:2422. [PMID: 25308849 PMCID: PMC4194397 DOI: 10.4081/ejh.2014.2422] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 07/03/2014] [Accepted: 07/07/2014] [Indexed: 12/14/2022] Open
Abstract
The Chinese brown frog (Rana dybowskii) is a special amphibian with one unique physiological phenomenon, which is that its oviduct expands prior to hibernation, instead of during the breeding period. In this study, we investigate the localization and expression level of PPARγ2, leptin and leptin receptor proteins in oviduct of Rana dybowskii during breeding period and pre-hibernation. There were significant variations in oviductal weight and size, with values much lower in the breeding period than in pre-hibernation. PPARγ2 was observed in stromal and epithelial cells in both periods. Leptin was immunolocalized in epithelial cells in both periods, whereas leptin receptor was detected only in stromal cells. Consistently, the protein levels of PPARγ2, leptin and leptin receptor were higher in pre-hibernation as compared to the breeding period. These results suggested that oviduct was the target organ of leptin, which may play an important paracrine role in regulating the oviductal hypertrophy during prehibernation.
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Affiliation(s)
- Y Liu
- Beijing Forestry University.
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Kalra S, Sahay RK, Schnell O, Sheu W, Grzeszczak W, Watada H, Soegondo S, Yamamoto N, Weng J, Rathod R. Acarbose improves glycemic control and reduces body weight: Subanalysis data of South Asia region. Indian J Endocrinol Metab 2013; 17:S304-S306. [PMID: 24251195 PMCID: PMC3830341 DOI: 10.4103/2230-8210.119632] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Alpha-glucosidase inhibitors (AGIs) are widely used especially in Asian countries as a treatment option for type 2 diabetes patients with high postprandial glycaemia. However, data from South Asia region is very limited. In order to examine the effect of AGI in real-life setting, 10 PMS/NIS from all over the world from the launch of acarbose to date were pooled in one database and exploratory analysis was performed for glycemic parameters and weight. In total 62,905 patients were pooled from 21 countries and regions. Mean follow up (± SD) was 12.2 ± 4.8 weeks (range 0.1-108.9). From South Asia region (India and Pakistan), 8,738 Asian patients were enrolled. Mean PPG decreased from 240.0 and 261.1 mg/dl at baseline by 70.26 ± 65.10 and 82.96 ± 56.59 mg/dl at the last visit in total and South Asian populations, respectively (n = 53,883; n = 7,991, P < 0.0001 for both). Mean FPG decreased from 171.6 and 176.5 mg/dl at baseline by 38.48 ± 47.83 and 49.59 ± 41.41 mg/dl at the last visit in total and South Asian populations, respectively (n = 56,672; n = 7,837, P < 0.0001 for both). Mean HbA1c decreased from 8.4 and 8.4% at baseline by 1.11 ± 1.31% and 0.91 ± 0.93% at the last visit in total and South Asian populations, respectively (n = 38,843; n = 2,343, P < 0.0001 for both). Mean relative reduction of body weight (BW) was 1.40 ± 3.28% and 1.10 ± 3.39% at the last visit for mean baseline BW 73.6 and 74.2 kg in total and South Asian populations, respectively (n = 54,760; n = 7,718, P < 0.0001 for both). Consistent with RCT meta-analyses, post-hoc analysis of real-life data showed acarbose treatment improved glycaemic control and reduced the BW. Acarbose treatment in real life setting showed significant reductions in all glycemic parameters and BW in Asian patients from South Asia region.
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Affiliation(s)
- S Kalra
- Bharti Research Institute of Diabetes and Endocrinology Bharti Hospital, Department of Endocrinology, Karnal, India
| | - R. K. Sahay
- Department of Endocrinology, Osmania Medical College, Hyderabad, India
| | - O. Schnell
- Forschergruppe Diabetes e.V. at the Helmholtz Center Munich, Munich, Germany
| | - W.H.H. Sheu
- Taichung Veterans General Hospital, Department of Internal Medicine, Taichung, Taiwan
| | - W. Grzeszczak
- Medical University of Silesia, Department of Internal Medicine, Zabrze, Poland
| | - H. Watada
- Juntendo University Graduate School of Medicine, Department of Endocrinology and Metabolism, Tokyo, Japan
| | - S. Soegondo
- University of Indonesia, Department of Internal Medicine, Jakarta, Indonesia
| | - N. Yamamoto
- Bayer Healthcare, Global Medical Affairs, Beijing, China
| | - J. Weng
- The Third Affiliated Hospital of Sun Yat Sen University, Department of Endocrinology, Guangzhou, China
| | - R. Rathod
- Bayer Healthcare, Bayer Zydus Pharma Private Limited, Thane, India
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Kalra S, Sahay RK, Schnell O, Sheu WHH, Grzeszczak W, Watada H, Soegondo S, Yamamoto N, Weng J, Rathod R. Alpha-glucosidase inhibitor, acarbose, improves glycamic control and reduces body weight in type 2 diabetes: Findings on indian patients from the pooled data analysis. Indian J Endocrinol Metab 2013; 17:S307-S309. [PMID: 24251196 PMCID: PMC3830342 DOI: 10.4103/2230-8210.119634] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Alpha-glucosidase inhibitors are widely used especially in Asian countries as a treatment option for type 2 diabetes patients with high postprandial glycemia (PPG). The higher carbohydrate in the Indian diets lead to greater prandial glycemic excursion, increased glucosidase, and incretin activity in the gut and may need special therapeutic strategies to tackle these glucose peaks. This is the subgroup analysis of Indian subjects who participated in the GlucoVIP study that investigated the effectiveness and tolerability of acarbose as add-on or monotherapy in a range of patients with type 2 diabetes mellitus. A total of 1996 Indian patients were included in the effectiveness analysis. After 12.5 weeks (mean), the mean change in 2-hour PPG from baseline was -74.4 mg/dl, mean HbA1c decreased by -1.0%, and mean fasting blood glucose decreased by -37.9 mg/dl. The efficacy of acarbose was rated "very good" or "good" in 91.1% of patients, and tolerability as "very good" or "good" in 88.0% of patients. The results of this observational study suggest that acarbose was effective and well tolerated in the Indian patients with T2DM.
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Affiliation(s)
- Sanjay Kalra
- Department of Endocrinology, Bharti Research Institute of Diabetes and Endocrinology Bharti Hospital, Karnal, India
| | - R. K. Sahay
- Department of Endocrinology, Osmania Medical College, Hyderabad, India
| | - O. Schnell
- Forschergruppe Diabetes e.V. at the Helmholtz Center Munich, Munich, Germany
| | - W. H. H. Sheu
- Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | | | - H. Watada
- Endocrinology and Metabolism, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | | | - N. Yamamoto
- Bayer Healthcare, Global Medical Affairs, Beijing, China
| | - J. Weng
- The Third Affiliated Hospital of Sun Yat Sen University, Guangzhou, China
| | - R. Rathod
- Bayer Healthcare, Bayer Zydus Pharma Private Limited, Thane, India
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48
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Xiao J, Weng J, Ji L, Jia W, Lu J, Shan Z, Liu J, Tian H, Ji Q, Yang Z, Yang W. Worse Pancreatic -cell Function and Better Insulin Sensitivity in Older Chinese Without Diabetes. J Gerontol A Biol Sci Med Sci 2013; 69:463-70. [DOI: 10.1093/gerona/glt104] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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49
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Sun LP, Wang S, Zhang ZW, Ma YY, Lai YQ, Weng J, Zhang QQ. Interaction of gold nanoparticles with Pfu DNA polymerase and effect on polymerase chain reaction. IET Nanobiotechnol 2013; 5:20-4. [PMID: 21241158 DOI: 10.1049/iet-nbt.2010.0009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The interaction of gold nanoparticles with Pfu DNA polymerase has been investigated by a number of biological, optical and electronic spectroscopic techniques. Polymerase chain reaction was performed to show gold nanoparticles' biological effect. Ultraviolet-visible and circular dichroism spectra analysis were applied to character the structure of Pfu DNA polymerase after conjugation with gold nanoparticles. X-ray photoelectron spectroscopy was used to investigate the bond properties of the polymerase-gold nanoparticles complex. The authors demonstrate that gold nanoparticles do not affect the amplification efficiency of polymerase chain reaction using Pfu DNA polymerase, and Pfu DNA polymerase displays no significant changes of the secondary structure upon interaction with gold nanoparticles. The adsorption of Pfu DNA polymerase to gold nanoparticles is mainly through Au-NH(2) bond and electrostatic interaction. These findings may have important implications regarding the safety issue as gold nanoparticles are widely used in biomedical applications.
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Affiliation(s)
- L-P Sun
- Xiamen University, College of Materials, Department of Biomaterials, Xiamen, People's Republic of China.
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50
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Yang Z, Xing X, Xiao J, Lu J, Weng J, Jia W, Ji L, Shan Z, Liu J, Tian H, Ji Q, Zhu D, Ge J, Lin L, Chen L, Guo X, Zhao Z, Li Q, Zhou Z, Shan G, Yang W. Prevalence of cardiovascular disease and risk factors in the Chinese population with impaired glucose regulation: the 2007-2008 China national diabetes and metabolic disorders study. Exp Clin Endocrinol Diabetes 2013; 121:372-4. [PMID: 23616189 DOI: 10.1055/s-0033-1341520] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [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: 12/16/2022]
Abstract
Cardiovascular disease (CVD) is one of the most common chronic diseases in China. This aim of this study is to determine the prevalence of CVDs and risk factors in Chinese impaired glucose regulation subjects.We used a multistage, stratified sampling method to select subjects from the general Chinese population aged 20 years and older. Subjects underwent an oral glucose tolerance test to identify normal glucose tolerance (NGT) and impaired glucose regulation including isolated impaired fasting glucose (i-IFG), impaired glucose tolerance (i-IGT), and combined IFG/IGT and diabetic mellitus (DM). A logistic regression analysis was performed to examine the association between glucose abnormalities and CVD events.We identified that 34 293 subjects had NGT, 1 469 i-IFG, 4 571 i-IGT, 957 IFG/IGT and 4 949 DM. The age-sex standardized prevalence rate of cardiovascular disease was 1.06% (95% CI 0.87-1.28), 1.79% (95% CI 1.37-2.33) and 3.83% (95% CI 2.79-5.24) in NGT, impaired glucose regulation and DM, respectively. Among impaired glucose subjects, prevalence of defined CVD risk factors (smoking, overweight, obesity, hypertension and dyslipidemia) was 29.52% (95% CI: 27.8-31.21), 36.25% (95% CI: 34.29-38.26), 10.05% (95% CI: 8.86-11.37), 36.43% (95% CI: 34.53-38.36) and 69.96% (95% CI: 67.87-71.98), respectively. Compared to 1 risk factor, the odds ratios (ORs) of CVDs with 2, 3 or 4 risk factors were 1.94 (95% CI: 0.74-5.09), 2.76 (95% CI: 1.06-7.21) and 5.84 (95% CI: 1.68-20.26), respectively. Additionally, compared to i-IFGs, ORs of CVDs with i-IGT and IFG/IGT were 2.88 (95%CI 1.36-6.01) and 2.12 (95% CI 0.83-5.44), respectively.The prevalence of cardiovascular risk factors was high in the Chinese impaired glucose regulation population. The postprandial hyperglycemia is more associated with CVD than isolated fasting hyperglycemia.
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Affiliation(s)
- Z Yang
- China-Japan Friendship Hospital, Beijing
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