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Zhao F, Zeng HY, Jia ST, Pei Y, Cheng X, Zhang X, Huang HJ, Wang JQ. [Analysis of clinical effect of arthroscopic release at different time in treating knee adhesion after arthroscopic surgery]. Zhonghua Yi Xue Za Zhi 2024; 104:1474-1480. [PMID: 38706053 DOI: 10.3760/cma.j.cn112137-20231021-00844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Objective: To explore the efficacy of arthroscopic release in treating postoperative knee adhesion and investigate the influence of release timing on the treatment outcomes. Methods: A total of 50 patients who accepted arthroscopic release in Peking University Third Hospital from February 2017 to December 2021 were included in the retrospective cohort. The study cohort comprised 28 men and 22 women, with a mean age of (30.8±11.9) years. All the primary surgeries were manipulated under arthroscopes. A comparison was made between pre-and postoperative range of motion (ROM), visual analog scale (VAS), International Knee Documentation Committee (IKDC) scores, and Tegner activity scale scores for the patients. According to the interval between the appearance of adhesion and arthroscopic release, the patients were divided into four groups:<3 months group (n=12), 3-6 months group (n=16),>6-12 months group (n=14), and>12 months group (n=8). Inter-group comparisons on postoperative ROM, IKDC scores, and Tegner activity scale scores and improvement values of each outcome were conducted. Results: All the patients were followed up for (36.4±19.7) months. Patients gained significant improvement in flexion, extension, IKDC scores, and Tegner scores (125.0°±20.0° vs 75.7°±27.5°, 2.3°±4.8° vs 7.4°±7.3°, 69.8±17.7 vs 51.4±12.8, 4.1±2.1 vs 2.2±1.1) (all P<0.05), while the VAS scores did not show significant improvement. There were no significant differences among different groups in postoperative extension, IKDC scores or Tegner scores, nor in their improvements. However, patients in the ≤6 months group could gain better postoperative flexion and improvement in flexion than those in the >6 months group (129.9°±20.0° vs 118.8°±17.4°, 58.6°±32.8° vs 37.3°±23.1°) (P<0.05). Conclusions: Arthroscopic release presents a great effect in treating knee adhesion after arthroscopic operation. Once the symptoms of adhesion appear and physical rehabilitation fails to improve the ROM, one should accept early surgical intervention (less than 6 months) for a better outcome.
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Affiliation(s)
- F Zhao
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - H Y Zeng
- the Fourth School of Clinical Medicine, Peking University Health Science Center, Beijing 100035, China
| | - S T Jia
- the Fourth School of Clinical Medicine, Peking University Health Science Center, Beijing 100035, China
| | - Y Pei
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - X Cheng
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - X Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - H J Huang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - J Q Wang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
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Zhang Y, Pei Y, Guo Y, Chen S, Zhou ZB, Xu T, Zha H. Adaptable cascaded registration for personalized maxilla completion and cleft defect volume estimation. Med Phys 2024. [PMID: 38555877 DOI: 10.1002/mp.17046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/29/2024] [Accepted: 03/04/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Cone-beam computed tomography (CBCT) images provide high-resolution insights into the underlying craniofacial anomaly in patients with cleft lip and palate (CLP), requiring non-negligible annotation costs to measure the cleft defect for the guidance of the clinical secondary alveolar bone graft procedures. Considering the cumbersome volumetric image acquisition, there is a lack of paired CLP CBCTs and normal CBCTs for learning-based anatomical structure restoration models. Nowadays, the registration-based method relieves the annotation burden, though one-shot registration and the regular mask are limited to handling fine-grained shape variations and harmony between restored bony tissues and the defected maxilla. PURPOSE This study aimed to design and evaluate a novel method for deformable partial registration of the CLP CBCTs and normal CBCTs, enabling personalized maxilla completion and cleft defect volume prediction from CLP CBCTs. METHODS We proposed an adaptable deep registration framework for personalized maxilla completion and cleft defect volume prediction from CLP CBCTs. The key ingredient was a cascaded partial registration to exploit the maxillary morphology prior and attribute transfer. Cascaded registration with coarse-to-fine registration fields handled morphological variations of cleft defects and fine-grained maxillary restoration. We designed an adaptable cleft defect mask and volumetric Boolean operators for reliable voxel filling of the defected maxilla. A total of 36 clinically obtained CLP CBCTs were used to train and validate the proposed model, among which 22 CLP CBCTs were used to generate a training dataset with 440 synthetic CBCTs by B-spline deformation-based data augmentation and the remaining for testing. The proposed model was evaluated on maxilla completion and cleft defect volume prediction from clinically obtained unilateral and bilateral CLP CBCTs. RESULTS Extensive experiments demonstrated the effectiveness of the adaptable cleft defect mask and the cascaded partial registration on maxilla completion and cleft defect volume prediction. The proposed method achieved state-of-the-art performances with the Dice similarity coefficient of 0.90 ± $\pm$ 0.02 on the restored maxilla and 0.84 ± $\pm$ 0.04 on the estimated cleft defect, respectively. The average Hausdorff distance between the estimated cleft defect and the manually annotated ground truth was 0.30 ± $\pm$ 0.08 mm. The relative volume error of the cleft defect was0.09 ± $0.09\pm$ 0.08. The proposed model allowed for the prediction of cleft defect maps that were in line with the ground truth in the challenging unilateral and bilateral CLP CBCTs. CONCLUSIONS The results suggest that the proposed adaptable deep registration model enables patient-specific maxilla completion and automatic annotation of cleft defects, relieving tedious voxel-wise annotation and image acquisition burdens.
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Affiliation(s)
- Yungeng Zhang
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, School of Intelligence Science and Technology, Peking University, Beijing, China
- China Telecom Research Institute, Beijing, China
| | - Yuru Pei
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, School of Intelligence Science and Technology, Peking University, Beijing, China
| | - Yixiao Guo
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, School of Intelligence Science and Technology, Peking University, Beijing, China
| | - Si Chen
- School of Stomatology, Stomatology Hospital, Peking University, Beijing, China
| | - Zhi-Bo Zhou
- School of Stomatology, Stomatology Hospital, Peking University, Beijing, China
| | - Tianmin Xu
- School of Stomatology, Stomatology Hospital, Peking University, Beijing, China
| | - Hongbin Zha
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, School of Intelligence Science and Technology, Peking University, Beijing, China
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Zhong Y, Pei Y, Nie K, Zhang Y, Xu T, Zha H. Bi-Graph Reasoning for Masticatory Muscle Segmentation From Cone-Beam Computed Tomography. IEEE Trans Med Imaging 2023; 42:3690-3701. [PMID: 37566502 DOI: 10.1109/tmi.2023.3304557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Automated segmentation of masticatory muscles is a challenging task considering ambiguous soft tissue attachments and image artifacts of low-radiation cone-beam computed tomography (CBCT) images. In this paper, we propose a bi-graph reasoning model (BGR) for the simultaneous detection and segmentation of multi-category masticatory muscles from CBCTs. The BGR exploits the local and long-range interdependencies of regions of interest and category-specific prior knowledge of masticatory muscles by reasoning on the category graph and the region graph. The category graph of the learnable muscle prior knowledge handles high-level dependencies of muscle categories, enhancing the feature representation with noise-agnostic category knowledge. The region graph models both local and global dependencies of the candidate muscle regions of interest. The proposed BGR accommodates the high-level dependencies and enhances the region features in the presence of entangled soft tissue and image artifacts. We evaluated the proposed approach by segmenting masticatory muscles on clinically acquired CBCTs. Extensive experimental results show that the BGR effectively segments masticatory muscles with state-of-the-art accuracy.
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Wang X, Liu K, Guo Y, Pei Y, Chen X, Lu X, Gao R, Chen Y, Gu M, Hu J, Liu X, Hu S, Jiao XA, Liu X, Wang X. Emergence of a new designated clade 16 with significant antigenic drift in hemagglutinin gene of H9N2 subtype avian influenza virus in eastern China. Emerg Microbes Infect 2023; 12:2249558. [PMID: 37585307 PMCID: PMC10467529 DOI: 10.1080/22221751.2023.2249558] [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: 05/25/2023] [Revised: 07/30/2023] [Accepted: 08/14/2023] [Indexed: 08/18/2023]
Abstract
H9N2 avian influenza viruses (AIVs) pose an increasing threat to the poultry industry worldwide and have pandemic potential. Vaccination has been principal prevention strategy to control H9N2 in China since 1998, but vaccine effectiveness is persistently challenged by the emergence of the genetic and/or antigenic variants. Here, we analysed the genetic and antigenic characteristics of H9N2 viruses in China, including 70 HA sequences of H9N2 isolates from poultry, 7358 from online databases during 2010-2020, and 15 from the early reference strains. Bayesian analyses based on hemagglutinin (HA) gene revealed that a new designated clade16 emerged in April 2012, and was prevalent and co-circulated with clade 15 since 2013 in China. Clade 16 viruses exhibited decreased cross-reactivity with those from clade 15. Antigenic Cartography analyses showed represent strains were classified into three antigenic groups named as Group1, Group2 and Group3, and most of the strains in Group 3 (15/17, 88.2%) were from Clade 16 while most of the strains in Group2 (26/29, 89.7%) were from Clade 15. The mean distance between Group 3 and Group 2 was 4.079 (95%CI 3.605-4.554), revealing that major switches to antigenic properties were observed over the emergence of clade 16. Genetic analysis indicated that 11 coevolving amino acid substitutions primarily at antigenic sites were associated with the antigenic differences between clade 15 and clade 16. These data highlight complexities of the genetic evolution and provide a framework for the genetic basis and antigenic characterization of emerging clade 16 of H9N2 subtype avian influenza virus.
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Affiliation(s)
- Xiyue Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
| | - Kaituo Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, People’s Republic of China
| | - Yaqian Guo
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
| | - Yuru Pei
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
| | - Xia Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
| | - Xiaolong Lu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
| | - Ruyi Gao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
| | - Yu Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
| | - Min Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
| | - Jiao Hu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
| | - Xiaowen Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
| | - Shunlin Hu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
| | - Xin-an Jiao
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, People’s Republic of China
| | - Xiufan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, People’s Republic of China
| | - Xiaoquan Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, People’s Republic of China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou, People’s Republic of China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, People’s Republic of China
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Li Y, Fan X, Pei Y, Wu K. Dynamic Effects of Thoracic Irradiation on Immune Status of Organs in and out of Radiation Field in Mice. Int J Radiat Oncol Biol Phys 2023; 117:e244. [PMID: 37784958 DOI: 10.1016/j.ijrobp.2023.06.1177] [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) Thoracic irradiation involves large blood vessels and hematopoietic tissues which was easily inducing lymphopenia. Lymphocytes are important components of immune response and lymphopenia is associated with poorer survival. However, the dynamic recovery of lymphocyte subsets after thoracic irradiation were rarely reported in the literature. This study focused on dynamic changes of lymphocytes subsets of mice after receiving thoracic irradiation in and out of radiation field. MATERIALS/METHODS C57BL/6 male mice aged 6-8 weeks received 2Gy*5fx whole thoracic irradiation and were sacrificed on the 1 day, 7 days, 15 days, 25 days after irradiation. Peripheral blood was harvested for mature lymphocyte subsets (B cells, T cells, CD4+T cells, CD8+T cells, NK cells) detection by performing flow cytometry, while thymus, femur bone marrow and sternal bone marrow for hematopoietic stem cells (Long-term Hematopoietic Stem Cell [LT-HSC], Short-term Hematopoietic Stem Cell [ST-HSC]) and progenitor cells (Multipotent Progenitor [MPP], Common Lymphoid Progenitor [CLP]). Absolute counts method was used in flow cytometry and data analysis were performed by scientific 2-D graphing and statistics software. RESULTS We found that the lymphocyte subsets were significantly reduced in peripheral blood of irradiated mice (all p<0.05). The mature lymphocyte subsets returned to normal 2-3 weeks after irradiation. After radiation, thymus weight was significantly decreased (p<0.0001). With the recovery of thymus weight, the number of hematopoietic stem cells returned to the baseline. For the femur bone marrow (out of the radiation field), hematopoietic stem cells and progenitor cells showed a proliferation tendency. MPP significantly increased in the 1day after irradiation (p = 0.0347) and LT-HSC increased in the 8 days (p = 0.0011). However, although ST-HSC and CLP were slightly increased after irradiation, there were no statistically significance. The sternal bone marrow (in the radiation field) reached the lowest value 1day after irradiation (all p<0.0001). Although hematopoietic stem cells and progenitor cells recovered gradually, but still far away from the level of the control group (all p<0.05). CONCLUSION The recovery of lymphocytes in the peripheral blood might mainly come from the supplement of bone marrow out of the irradiation field, while bone marrow in the field suffered serious destruction which did slightly help for lymphocytes recovery.
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Affiliation(s)
- Y Li
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
| | - X Fan
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Y Pei
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - K Wu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
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Fan X, Li Y, Pei Y, Wu K. Recovery Characteristics of Lymphocyte Subsets after Thoracic Radiotherapy: A Single Center Clinical Study. Int J Radiat Oncol Biol Phys 2023; 117:e18. [PMID: 37784799 DOI: 10.1016/j.ijrobp.2023.06.686] [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) Lymphocytes play a critical role in anti-tumor, and are highly sensitive to radiation. However, the dynamic changes of lymphocytes subsets after receiving thoracic radiotherapy have rarely been investigated. This study was to explore the recovery characteristics of each subset, and the role of thymosin α1 after thoracic radiotherapy. MATERIALS/METHODS A total of 252 patients receiving chest radiotherapy included in this study. Blood was harvested before, at the end of radiotherapy, 1 month, 4 months, 7 months, 10 months, 13 months, and 19 months after radiotherapy for lymphocyte subsets detection by performing flow cytometry. In addition, a total of 26 patients with thoracic malignancy were treated with thymosin α1 after radiotherapy for one month. The number of lymphocyte subsets at the end of 1 month after radiotherapy were compared with control group. Absolute counts method was used in flow cytometry. RESULTS At the end of radiotherapy, nearly all of the subsets decreased significantly (T cell: 65.4%, Tc cell: 64.8%, Th cell: 66.1%, B cell: 88.7%, NK cell: 68.8%), except Treg cell. Tc cells recovered rapidly to baseline level at 1 month. The number of NK cells increased by 1.95 times at 1 month, and recovered to baseline level at 7th month. The number of B cell at 1 month was still 19.2% compared baseline, and recovered slowly to baseline at 7th month. The number of Th cells were nearly no recovery, and were 44.1% compared with baseline even at 19th month. For patients with thymosin α1 injection, all of the lymphocyte subsets had no significant difference compared those without thymosin α1 injection. In addition, younger patients were with better recovery in Th cells (p = 0.011) and B cells (p < 0.001) than elder patients at 1 month. CONCLUSION B cell was the most radiosensitive lymphocyte, and Th cell was continuous exhaustion after thoracic radiation. Thymosin α1 had no effect on lymphocyte subpopulation recovery, and new drugs are urgently needed to explore in the future.
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Affiliation(s)
- X Fan
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Y Li
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
| | - Y Pei
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - K Wu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
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Fan Y, Han B, Zhang Y, Guo Y, Li W, Chen H, Meng C, Penington A, Schneider P, Pei Y, Chen G, Xu T. Natural reference structures for three-dimensional maxillary regional superimposition in growing patients. BMC Oral Health 2023; 23:655. [PMID: 37684645 PMCID: PMC10492283 DOI: 10.1186/s12903-023-03367-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Assessment of growth-related or treatment-related changes in the maxilla requires a reliable method of superimposition. Such methods are well established for two-dimensional (2D) cephalometric images but not yet for three-dimensions (3D). The aims of this study were to identify natural reference structures (NRS) for the maxilla in growing patients in 3D, opportunistically using orthodontic mini-screws as reference; and to test the applicability of the proposed NRS for maxillary superimposition by assessing the concordance of this approach with Björk's 'stable reference structures' in lateral projection. METHODS The stability of the mini-screws was tested on longitudinal pairs of pre- and post-orthodontic cone-beam computed tomography (CBCT) images by measuring the distance changes between screws. After verifying the stability of the mini-screws, rigid registration was performed for aligning the stable mini-screws. Then, non-rigid registration was used to establish the dense voxel-correspondence among CBCT images and calculate the displacement of each voxel belonging to the maxilla relative to the mini-screws. The displacement vectors were transformed to a standardized maxillary template to categorize the stability of the internal structures statistically. Those voxels that displaced less relative to the mini-screws were considered as the natural reference structures (NRS) for the maxilla. Test samples included another dataset of longitudinal CBCT scans. They were used to evaluate the applicability of the proposed NRS for maxillary superimposition. We assessed whether aligning the maxilla with proposed NRS is in concordance with the maxillary internal reference structures superimposition in the traditional 2D lateral view as suggested by Björk. This was quantitively assessed by comparing the mean sagittal and vertical tooth movements for both superimposition methods. RESULTS The stability of the mini-screws was tested on 10 pairs of pre- and post-orthodontic cone-beam computed tomography (CBCT) images (T1: 12.9 ± 0.8 yrs, T2: 14.8 ± 0.7 yrs). Both the loaded and the unloaded mini-screws were shown to be stable during orthodontic treatment, which indicates that they can be used as reference points. By analyzing the deformation map of the maxilla, we confirmed that the infraorbital rims, maxilla around the piriform foramen, the infrazygomatic crest and the hard palate (palatal vault more than 1 cm distal to incisor foramen except the palatal suture) were stable during growth. Another dataset of longitudinal CBCT scans (T1: 12.2 ± 0.63 yrs, T2: 15.2 ± 0.96 yrs) was used to assess the concordance of this approach with Björk's 'stable reference structures'. The movement of the maxillary first molar and central incisor showed no statistically significant difference when superimposing the test images with the proposed NRS or with the classic Björk maxillary superimposition in the lateral view. CONCLUSIONS The infraorbital rims, maxilla around the piriform foramen, the infrazygomatic crest and the hard palate (palatal vault more than 1 cm posterior to incisal foramen except the palatal suture) were identified as stable regions in the maxilla. These stable structures can be used for maxillary superimposition in 3D and generate comparable results to Björk superimposition in the lateral view.
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Affiliation(s)
- Yi Fan
- Third Clinical Division, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Bing Han
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yungeng Zhang
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, School of Artificial Intelligence and Technology, Peking University, Beijing, China
| | - Yixiao Guo
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, School of Artificial Intelligence and Technology, Peking University, Beijing, China
| | - Wei Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Huanhuan Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Chenda Meng
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Anthony Penington
- Department of Paediatrics, The University of Melbourne, Royal Children's Hospital, Melbourne, Australia
- Facial Science, Murdoch Children's Research Institute, Melbourne, Australia
| | - Paul Schneider
- Melbourne Dental School, The University of Melbourne, Melbourne, Australia
| | - Yuru Pei
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, School of Artificial Intelligence and Technology, Peking University, Beijing, China
| | - Gui Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China.
| | - Tianmin Xu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China.
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Lv C, Wang R, Li S, Yan S, Wang Y, Chen J, Wang L, Liu Y, Guo Z, Wang J, Pei Y, Yu L, Wu N, Lu F, Gao F, Chen J, Liu Y, Wang X, Li S, Han B, Zhang L, Ma Y, Ding L, Wang Y, Yuan X, Yang Y. Randomized phase II adjuvant trial to compare two treatment durations of icotinib (2 years versus 1 year) for stage II-IIIA EGFR-positive lung adenocarcinoma patients (ICOMPARE study). ESMO Open 2023; 8:101565. [PMID: 37348348 PMCID: PMC10515286 DOI: 10.1016/j.esmoop.2023.101565] [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: 02/21/2023] [Revised: 03/30/2023] [Accepted: 04/24/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND Despite the prolonged median disease-free survival (DFS) by adjuvant targeted therapy in non-small-cell lung cancer patients with epidermal growth factor receptor (EGFR) mutations, the relationship between the treatment duration and the survival benefits in patients remains unknown. PATIENTS AND METHODS In this multicenter, randomized, open-label, phase II trial, eligible patients aged 18-75 years with EGFR-mutant, stage II-IIIA lung adenocarcinoma and who had not received adjuvant chemotherapy after complete tumor resection were enrolled from eight centers in China. Patients were randomly assigned (1 : 1) to receive either 1-year or 2-year icotinib (125 mg thrice daily). The primary endpoint was DFS assessed by investigator. The secondary endpoints were overall survival (OS) and safety. This study was registered at ClinicalTrials.gov (NCT01929200). RESULTS Between September 2013 and October 2018, 109 patients were enrolled (1-year group, n = 55; 2-year group, n = 54). Median DFS was 48.9 months [95% confidence interval (CI) 33.1-70.1 months] in the 2-year group and 32.9 months (95% CI 26.6-44.8 months) in the 1-year group [hazard ratio (HR) 0.51; 95% CI 0.28-0.94; P = 0.0290]. Median OS for patients was 75.8 months [95% CI 64.4 months-not evaluable (NE)] in the 2-year group and NE (95% CI 66.3 months-NE) in the 1-year group (HR 0.34; 95% CI 0.13-0.95; P = 0.0317). Treatment-related adverse events (TRAEs) were observed in 41 of 55 (75%) patients in the 1-year group and in 36 of 54 (67%) patients in the 2-year group. Grade 3-4 TRAEs occurred in 4 of 55 (7%) patients in the 1-year group and in 3 of 54 (6%) patients in the 2-year group. No treatment-related deaths or interstitial lung disease was reported. CONCLUSIONS Two-year adjuvant icotinib was shown to significantly improve DFS and provide an OS benefit in EGFR-mutant, stage II-IIIA lung adenocarcinoma patients compared with 1-year treatment in this exploratory phase II study.
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Affiliation(s)
- C Lv
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - R Wang
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Hebi
| | - S Li
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - S Yan
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - Y Wang
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - J Chen
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - L Wang
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - Y Liu
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - Z Guo
- Department of Thoracic Surgery, The Affiliated Hospital of Inner Mongolia Medical University, Inner Mongolia
| | - J Wang
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - Y Pei
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - L Yu
- Department of Thoracic Surgery, Beijing Tongren Hospital, CMU, Beijing
| | - N Wu
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - F Lu
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - F Gao
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Hebi
| | - J Chen
- Thoracic Neoplasms Surgical Department, Tianjing Medical University General Hospital, Tianjing
| | - Y Liu
- Thoracic Neoplasms Surgical Department, Inner Mongolia People's Hospital, Inner Mongolia
| | - X Wang
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - S Li
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing
| | - B Han
- Department of Thoracic Surgery, PLA Pocket Force Characteristic Medical Center, Beijing
| | - L Zhang
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - Y Ma
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing
| | - L Ding
- Betta Pharmaceuticals Co., Ltd, Hangzhou, China
| | - Y Wang
- Betta Pharmaceuticals Co., Ltd, Hangzhou, China
| | - X Yuan
- Betta Pharmaceuticals Co., Ltd, Hangzhou, China
| | - Y Yang
- Department of Thoracic Surgery II, Beijing Cancer Hospital, Beijing.
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9
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Pei Y, Liu YY, Sun M, Zheng J, Zhou TT, Wang B, Hu H, Wang ZL. Beneficial effects of pioglitazone and α-lipoic acid in patients with polycystic ovaries syndrome. Eur Rev Med Pharmacol Sci 2023; 27:7118-7126. [PMID: 37606122 DOI: 10.26355/eurrev_202308_33285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
OBJECTIVE Changes in hormone levels, improper lipid metabolism, and oxidative stress all significantly contribute to the pathogenic process of polycystic ovarian syndrome (PCOS). According to earlier research, pioglitazone and alpha-lipoic acid are crucial in the emergence of PCOS. The beneficial effects of pioglitazone and alpha-lipoic acid on PCOS were examined in the current study. PATIENTS AND METHODS The 120 patients with PCOS received three months of treatment in pioglitazone groups (n=40 case, 30 mg/time, 1 time/day), α-lipoic acid (n=40 case, 0.6 g/time, 1 time/day), and combination therapy (n=40 case, pioglitazone 30 mg/time, 1 time/day and α-lipoic acid, 0.6 g/time, 1 time/day). Before and after therapy, the following factors were evaluated: the hormonal profile, fasting serum insulin, body weight, body mass index (BMI), menstruation status, oxidative stress, and indications of lipid metabolism. RESULTS The combination of pioglitazone and α-lipoic acid has a significantly improving effect on BMI, body weight, oxidative stress levels, lipid metabolism, and menstrual status. A significant increase in body weight, BMI, and follicle-stimulating hormone (FSH) levels were found in mice after being treated with α-lipoic acid alone. However, the use pioglitazone alone improves body weight, BMI, the calculation of insulin resistance index (HOMA-IR), Area under the curve (AUC)-insulin, fasting glucose/insulin (G/I) ratio, total testosterone, and malondialdehyde (MDA) levels in post-treatment than pre-treatment. CONCLUSIONS These findings suggest that pioglitazone alone has a better effect than alpha-lipoic acid in improving oxidative stress levels, BMI, and menstrual cyclicity. Additionally, treatment with pioglitazone and alpha-lipoic acid did demonstrate a greater effect than monotherapy with each medication alone.
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Affiliation(s)
- Y Pei
- Department of Endocrinology, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, Jiangsu, China.
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10
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Li H, Pei Y, Yang GQ, Li YJ, Ni Q, Chen YL, Ba JM, Lyu ZH, Mu YM. [Diagnosis and treatment of aldosterone-producing adenoma presenting as bilateral adrenal lesions: a case report]. Zhonghua Nei Ke Za Zhi 2023; 62:714-717. [PMID: 37263957 DOI: 10.3760/cma.j.cn112138-20220826-00639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- H Li
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Pei
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - G Q Yang
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y J Li
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Q Ni
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y L Chen
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J M Ba
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Z H Lyu
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y M Mu
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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11
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Sun D, Zhang Y, Pei Y, Li P, Nie K, Xu T, Wang T, Zha H. Deep Volumetric Descriptor Learning for Dense Correspondence of Cone-Beam Computed Tomography via Spectral Maps. IEEE Trans Med Imaging 2022; 41:2157-2169. [PMID: 35259099 DOI: 10.1109/tmi.2022.3158065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The deep neural network has achieved great success in 3D volumetric correspondence. These methods infer the dense displacement or velocity fields directly from the extracted volumetric features without addressing the intrinsic structure correspondence, being prone to shape and pose variations. On the other hand, the spectral maps address the intrinsic structure matching in the low dimensional embedding space, remain less involved in volumetric image correspondence. This paper presents an unsupervised deep volumetric descriptor learning neural network via the low dimensional spectral maps to address the dense volumetric correspondence. The neural network is optimized by a novel criterion on descriptor alignments in the spectral domain regarding the supervoxel graph. Aside from the deep convolved multi-scale features, we explicitly address the supervoxel-wise spatial and cross-channel dependencies to enrich deep descriptors. The dense volumetric correspondence is formulated as the low-dimensional spectral mapping. The proposed approach has been applied to both synthetic and clinically obtained cone-beam computed tomography images to establish dense supervoxel-wise and up-scaled voxel-wise correspondences. Extensive series of experimental results demonstrate the contribution of the proposed approach in volumetric descriptor extraction and consistent correspondence, facilitating attribute transfer for segmentation and landmark location. The proposed approach performs favorably against the state-of-the-art volumetric descriptors and the deep registration models, being resilient to pose or shape variations and independent of the prior transformations.
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12
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Geller D, Perez-Garcia C, Pei Y, Liu X, Engelhardt J, Hodges C, Mense M, Coote K, Cheng Y, Mahoney J, Parker S, Chivukula P. WS16.03 LUNAR-CF: an mRNA replacement approach for cystic fibrosis lung disease. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00245-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Liu D, Pei Y. The secret of H 2 S to keep plants young and fresh and its products. Plant Biol (Stuttg) 2022; 24:587-593. [PMID: 34921509 DOI: 10.1111/plb.13377] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 11/12/2021] [Indexed: 06/14/2023]
Abstract
Recently, accumulating evidence has shown that hydrogen sulphide (H2 S), a newly determined gasotransmitter, plays important roles in senescence, which is an essential biological process for plant fitness and an important agricultural trait that is critical for the yield and quality of farm produce. Here, in this review, we summarize the roles of H2 S in senescence, both before and after the harvesting of agricultural products, and the underlying mechanism is also discussed. During the plant growth process, the function of H2 S in the leaf senescence process has been studied extensively, and H2 S plays roles during the whole process, including the initiation, reorganization and terminal stages. While during the postharvest stage, H2 S can prevents farm products from deterioration resulting from over-ripening, pathogen attack and incorrect storage. The underlying H2 S-related mechanisms during different stages of the senescence process are summarized and compared. The most prominent interaction occurs between H2 S and reactive oxygen species, and the molecular mechanism is explored. Additionally, the conserved action mode of H2 S in different life processes and different species is also discussed. In the future, multi-omics analyses over time will be needed to investigate the detailed mechanisms of H2 S, and a safety attribute analysis of H2 S is also required before it can be used in agricultural production.
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Affiliation(s)
- D Liu
- School of Life Science, Shanxi University, Taiyuan, China
- Shanxi Key Laboratory for Research and Development of Regional Plants, Taiyuan, China
| | - Y Pei
- School of Life Science, Shanxi University, Taiyuan, China
- Shanxi Key Laboratory for Research and Development of Regional Plants, Taiyuan, China
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14
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Nassar M, Kostrzewa M, Khowaja S, Iluta I, Pei Y, Shlomovitz E. Abstract No. 371 Percutaneous renal cyst aspiration and sclerotherapy in patients with autosomal dominant polycystic kidney disease results in local pressure reduction: a preliminary study. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.452] [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: 11/27/2022] Open
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15
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Fan Y, Zhang Y, Chen G, He W, Song G, Matthews H, Claes P, Pei Y, Zha H, Penington A, Kilpatrick N, Schneider P, Jiang R, Xu T. Automated assessment of mandibular shape asymmetry in 3-dimensions. Am J Orthod Dentofacial Orthop 2022; 161:698-707. [DOI: 10.1016/j.ajodo.2021.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/01/2021] [Accepted: 07/01/2021] [Indexed: 11/30/2022]
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16
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Zhang Q, Zang L, Zhang CY, Gu WJ, Li B, Jia XF, Chen K, Pei Y, Du J, Guo QH, Ba JM, Lyu ZH, Dou JT, Mu YM. [Diagnosis and treatment of 21-hydroxylase deficiency with testicular adrenal rest tumors:a report of three cases and literature review]. Zhonghua Nei Ke Za Zhi 2022; 61:72-76. [PMID: 34979773 DOI: 10.3760/cma.j.cn112138-20210718-00488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To provide insight into the diagnosis for clinicians, the clinical characteristics, diagnosis and treatment history of 3 patients with 21-hydroxylase deficiency (21-OHD) and testicular adrenal rest tumors (TART) were analyzed. Methods: The clinical, laboratory and imaging data of 3 male patients with 21-OHD and TART, confirmed with CYP21 gene sequencing, from May 2010 to May 2021 in the First Medical Center of Chinese PLA General Hospital were analyzed retrospectively. The treatment strategy and clinical outcome were followed up. Results: All the 3 patients were first diagnosed with bilateral adrenal mass at the age of 27-42 years old. They were 145-162 cm tall. The levels of progesterone, 17-hydroxyprogesterone, and adrenocorticotropic hormone (ACTH) of the 3 patients were relatively high, and that of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) of the 3 patients were low. Testosterone level of 1 patient was significantly elevated, and that of the other 2 patients was below the lower limit of normal range. Testicular ultrasound showed heterogeneous hyperechoic masses in both testes. CT of the adrenal glands showed bilateral adrenal enlargement with mass. All 3 patients were treated with dexamethasone. After 4-96 months of follow-up, 17-hydroxyprogesterone level was kept above the median normal level. One of the patients got married and had a baby after treatment. The sizes of adrenal hyperplasia and testicular masses reduced to various degrees with the change of the testicular masses being proportional to that of adrenal hyperplasia. Conclusions: Patients with 21-OHD are prone to have TART, leading to the impaired testicular function. Early glucocorticold therapy is beneficial to the reduction of TART and restoration of testicular function.
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Affiliation(s)
- Q Zhang
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L Zang
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - C Y Zhang
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - W J Gu
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - B Li
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - X F Jia
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - K Chen
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Pei
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J Du
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Q H Guo
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J M Ba
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Z H Lyu
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J T Dou
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y M Mu
- Department of Endocrinology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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17
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Yi Y, Sun D, Li P, Kim TK, Xu T, Pei Y. Unsupervised random forest for affinity estimation. Comput Vis Media (Beijing) 2021; 8:257-272. [PMID: 34900375 PMCID: PMC8645415 DOI: 10.1007/s41095-021-0241-9] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/26/2021] [Indexed: 06/14/2023]
Abstract
This paper presents an unsupervised clustering random-forest-based metric for affinity estimation in large and high-dimensional data. The criterion used for node splitting during forest construction can handle rank-deficiency when measuring cluster compactness. The binary forest-based metric is extended to continuous metrics by exploiting both the common traversal path and the smallest shared parent node. The proposed forest-based metric efficiently estimates affinity by passing down data pairs in the forest using a limited number of decision trees. A pseudo-leaf-splitting (PLS) algorithm is introduced to account for spatial relationships, which regularizes affinity measures and overcomes inconsistent leaf assign-ments. The random-forest-based metric with PLS facilitates the establishment of consistent and point-wise correspondences. The proposed method has been applied to automatic phrase recognition using color and depth videos and point-wise correspondence. Extensive experiments demonstrate the effectiveness of the proposed method in affinity estimation in a comparison with the state-of-the-art.
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Affiliation(s)
- Yunai Yi
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, 100871 China
| | - Diya Sun
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, 100871 China
| | - Peixin Li
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, 100871 China
| | - Tae-Kyun Kim
- Department of Electrical and Electronic Engineering, Imperial College London, London, UK
| | - Tianmin Xu
- School of Stomatology, Stomatology Hospital, Peking University, Beijing, 100081 China
| | - Yuru Pei
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, 100871 China
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18
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Liu X, Luo M, Pei Y, Bao B, Cai Q, Liang B, Bartels D, Perez-Garcia C, Engelhardt J. 663: LUNAR efficiently delivers mRNA into ferret airway epithelial cells in vitro and in vivo. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)02086-5] [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: 11/15/2022]
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19
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Liu K, Ding P, Pei Y, Gao R, Han W, Zheng H, Ji Z, Cai M, Gu J, Li X, Gu M, Hu J, Liu X, Hu S, Zhang P, Wang X, Wang X, Liu X. Emergence of a novel reassortant avian influenza virus (H10N3) in Eastern China with high pathogenicity and respiratory droplet transmissibility to mammals. Sci China Life Sci 2021; 65:1024-1035. [PMID: 34542812 DOI: 10.1007/s11427-020-1981-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 07/13/2021] [Indexed: 11/29/2022]
Abstract
Decades have passed since the first discovery of H10-subtype avian influenza virus (AIV) in chickens in 1949, and it has been detected in many species including mammals such as minks, pigs, seals and humans. Cases of human infections with H10N8 viruses identified in China in 2013 have raised widespread attention. Two novel reassortant H10N3 viruses were isolated from chickens in December 2019 in eastern China during routine surveillance for AIVs. The internal genes of these viruses were derived from genotype S (G57) H9N2 and were consistent with H5N6, H7N9 and H10N8, which cause fatal infections in humans. Their viral pathogenicity and transmissibility were further studied in different animal models. The two H10N3 isolates had low pathogenicity in chickens and were transmitted between chickens via direct contact. These viruses were highly pathogenic in mice and could be transmitted between guinea pigs via direct contact and respiratory droplets. More importantly, these viruses can bind to both human-type SAα-2,6-Gal receptors and avian-type SAα-2,3-Gal receptors. Asymptomatic shedding in chickens and good adaptability to mammals of these H10N3 isolates would make it easier to transmit to humans and pose a threat to public health.
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Affiliation(s)
- Kaituo Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Pingyun Ding
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Yuru Pei
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Ruyi Gao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Wenwen Han
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Huafen Zheng
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Zhuxing Ji
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Miao Cai
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Jinyuan Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Xiuli Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Min Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Jiao Hu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Xiaowen Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Shunlin Hu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Pinghu Zhang
- Institute of Translational Medicine, Key Laboratory of Geriatric Disease Prevention and Control of Jiangsu Province, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Xiaobo Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoquan Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China. .,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China.
| | - Xiufan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China. .,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China.
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20
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Zhang Y, Qin H, Li P, Pei Y, Guo Y, Xu T, Zha H. Deformable registration of lateral cephalogram and cone-beam computed tomography image. Med Phys 2021; 48:6901-6915. [PMID: 34496039 DOI: 10.1002/mp.15214] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/14/2021] [Accepted: 08/26/2021] [Indexed: 01/17/2023] Open
Abstract
PURPOSE This study aimed to design and evaluate a novel method for the registration of 2D lateral cephalograms and 3D craniofacial cone-beam computed tomography (CBCT) images, providing patient-specific 3D structures from a 2D lateral cephalogram without additional radiation exposure. METHODS We developed a cross-modal deformable registration model based on a deep convolutional neural network. Our approach took advantage of a low-dimensional deformation field encoding and an iterative feedback scheme to infer coarse-to-fine volumetric deformations. In particular, we constructed a statistical subspace of deformation fields and parameterized the nonlinear mapping function from an image pair, consisting of the target 2D lateral cephalogram and the reference volumetric CBCT, to a latent encoding of the deformation field. Instead of the one-shot registration by the learned mapping function, a feedback scheme was introduced to progressively update the reference volumetric image and to infer coarse-to-fine deformations fields, accounting for the shape variations of anatomical structures. A total of 220 clinically obtained CBCTs were used to train and validate the proposed model, among which 120 CBCTs were used to generate a training dataset with 24k paired synthetic lateral cephalograms and CBCTs. The proposed approach was evaluated on the deformable 2D-3D registration of clinically obtained lateral cephalograms and CBCTs from growing and adult orthodontic patients. RESULTS Strong structural consistencies were observed between the deformed CBCT and the target lateral cephalogram in all criteria. The proposed method achieved state-of-the-art performances with the mean contour deviation of 0.41 ± 0.12 mm on the anterior cranial base, 0.48 ± 0.17 mm on the mandible, and 0.35 ± 0.08 mm on the maxilla, respectively. The mean surface mesh ranged from 0.78 to 0.97 mm on various craniofacial structures, and the LREs ranged from 0.83 to 1.24 mm on the growing datasets regarding 14 landmarks. The proposed iterative feedback scheme handled the structural details and improved the registration. The resultant deformed volumetric image was consistent with the target lateral cephalogram in both 2D projective planes and 3D volumetric space regarding the multicategory craniofacial structures. CONCLUSIONS The results suggest that the deep learning-based 2D-3D registration model enables the deformable alignment of 2D lateral cephalograms and CBCTs and estimates patient-specific 3D craniofacial structures.
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Affiliation(s)
- Yungeng Zhang
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, China
| | - Haifang Qin
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, China
| | - Peixin Li
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, China
| | - Yuru Pei
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, China
| | - Yuke Guo
- Luoyang Institute of Science and Technology, Luoyang, China
| | - Tianmin Xu
- School of Stomatology, Stomatology Hospital, Peking University, Beijing, China
| | - Hongbin Zha
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Beijing, China
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Chen Y, Zhu S, Pei Y, Hu J, Hu Z, Liu X, Wang X, Gu M, Hu S, Liu X. Differential microRNA Expression in Newcastle Disease Virus-Infected HeLa Cells and Its Role in Regulating Virus Replication. Front Oncol 2021; 11:616809. [PMID: 34150610 PMCID: PMC8211993 DOI: 10.3389/fonc.2021.616809] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 05/17/2021] [Indexed: 12/13/2022] Open
Abstract
As an oncolytic virus, Newcastle disease virus (NDV) can specifically kill tumor cells and has been tested as an attractive oncolytic agent for cancer virotherapy. Virus infection can trigger the changes of the cellular microRNA (miRNA) expression profile, which can greatly influence viral replication and pathogenesis. However, the interplay between NDV replication and cellular miRNA expression in tumor cells is still largely unknown. In the present study, we compared the profiles of cellular miRNAs in uninfected and NDV-infected HeLa cells by small RNA deep sequencing. Here we report that NDV infection in HeLa cells significantly changed the levels of 40 miRNAs at 6 h post-infection (hpi) and 62 miRNAs at 12 hpi. Among 23 highly differentially expressed miRNAs, NDV infection greatly promoted the levels of 3 miRNAs and suppressed the levels of 20 miRNAs at both time points. These 23 miRNAs are predicted to target various genes involved in virus replication and antiviral immunity such as ErbB, Jak-STAT, NF-kB and RIG-I-like receptor. Verification of deep sequencing results by quantitative RT-PCR showed that 9 out of 10 randomly selected miRNAs chosen from this 23-miRNA pool were consistent with deep sequencing data, including 6 down-regulated and 3 up-regulated. Further functional research revealed that hsa-miR-4521, a constituent in this 23-miRNA pool, inhibited NDV replication in HeLa cells. Moreover, dual-luciferase and gene expression array uncovered that the member A of family with sequence similarity 129 (FAM129A) was directly targeted by hsa-miR-4521 and positively regulated NDV replication in HeLa cells, indicating that hsa-miR-4521 may regulate NDV replication via interaction with FAM129A. To our knowledge, this is the first report of the dynamic cellular miRNA expression profile in tumor cells after NDV infection and may provide a valuable basis for further investigation on the roles of miRNAs in NDV-mediated oncolysis.
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Affiliation(s)
- Yu Chen
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Shanshan Zhu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yuru Pei
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Jiao Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China
| | - Zenglei Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaowen Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China
| | - Xiaoquan Wang
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Min Gu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
| | - Shunlin Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
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LANKTREE M, Guiard E, Akbari P, Pourafkari M, Iliuta I, Ahmed S, Haghighi A, He N, Song X, Paterson A, Khalili K, Pei Y. POS-428 PROTEIN-TRUNCATING PKD1 MUTATIONS YET MILD AUTOSOMAL DOMINANT POLYCYSTIC KIDNEY DISEASE IS UNDER-RECOGNIZED. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.451] [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] Open
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23
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Abstract
The aim of this study was to develop an integrative framework on aging, immigration, and oral health. The methodology was a critical review that used immigration as a social determinant framework through which to evaluate its impact on the oral health of older immigrants. We reviewed recent empirical evidence on factors related to oral health in older immigrants. In a systematic search across multiple databases, we identified 12 eligible studies in this review. Among the eligible studies, most were conducted among East Asian immigrants (8 articles), followed by non-Hispanic White/European origin (2 articles), Mexican origins (1 article), and Iran and other Middle East regions (1 article). The research revealed knowledge gaps in the evidence base, including the dynamic relationship between acculturation and oral health, the role of environmental factors on oral health for immigrants, psychosocial stressors and their relationship with oral health, and oral health literacy, norms, and attitude to dental care utilization and oral hygiene practices. The development of the integrative framework suggests the pathways/mechanisms through which immigration exerts influences on oral health in later life. This provides opportunities for researchers, practitioners, and policy makers to gain greater insights into the complex associations between immigration and oral health among older adults.
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Affiliation(s)
- B Wu
- Rory Meyers College of Nursing and College of Dentistry, New York University, New York, NY, USA
| | - W Mao
- School of Social Work, University of Nevada, Reno, NV, USA
| | - X Qi
- Rory Meyers College of Nursing, New York University, New York, NY, USA
| | - Y Pei
- Rory Meyers College of Nursing, New York University, New York, NY, USA
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Li ZW, Yang GQ, Dou JT, Lyu ZH, Pei Y, Du J, Ba JM, Guo QH, Mu YM. [Clinical aspects of pregnancy-related lymphocytic hypophysitis]. Zhonghua Yi Xue Za Zhi 2020; 100:3314-3318. [PMID: 33202493 DOI: 10.3760/cma.j.cn112137-20200331-01022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze clinical features, diagnosis, treatment and prognosis of pregnancy-related lymphocytic hypophysitis (LyH). Methods: The clinical data of 16 cases diagnosed as pregnancy-related LyH at Chinese PLA General Hospital between October 2010 and November 2019 were reviewed. Results: Sixteen patients were included (aged 20-40 years). All patients' symptoms occurred from the last 2 months of pregnancy to 12 months postpartum, with 6 cases in the third trimester and 10 cases during postpartum, and all the patients were diagnosed after delivery. Six patients had lymphocytic adenohypophysitis (LAH), 4 patients had lymphocytic infundibuloneurohypophysitis (LINH), 4 patients had lymphocytic panhypophysitis (LPH), and 2 had lymphocytic hypothalamitis. Eight patients presented with symptoms of intracranial space-occupying lesions, 14 patients had symptoms of anteriorpituitary hormone deficiencies, 9 patients had central diabetes insipidus (CDI), and 2 had hyperprolactinemia. Pituitary MRI showed that the pituitary presented with diffuse enlargement, pituitary stalk thickening, disappearing of high-intensity signals in posterior pituitary and space-occupying lesions in the infundibulum of hypothalamus. Nine patients were treated with immunosuppressive agent, 3 patients alleviated the space-occupying effects after surgery, and 4 patients recovered spontaneously. Fourteen patients were followed up with a period of 3-98 months. Four patients had a relapse, 2 patients had a complete remission, and 12 patients needed long-term hormone replacement therapy. Conclusions: Clinical manifestations of pregnancy-related LyH are diverse. LyH should be suspected in pregnant or postpartum women with a sellar mass to avoid missed diagnosis or misdiagnosis. Immunosuppressant therapy is effective. Overall, LyH patients have a favorable prognosis.
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Affiliation(s)
- Z W Li
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China (Li Zewei is working at the Department of Endocrinology, Chifeng Municipal Hospital, Chifeng 024000, China)
| | - G Q Yang
- Department of Endocrinology, Hainan Hospital of Chinese PLA General Hospital, Sanya 572000, China
| | - J T Dou
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Z H Lyu
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Pei
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J Du
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J M Ba
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Q H Guo
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y M Mu
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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Chen F, Liu H, Wang X, Li Z, Zhang J, Pei Y, Zheng Z, Wang J. Melatonin activates autophagy via the NF-κB signaling pathway to prevent extracellular matrix degeneration in intervertebral disc. Osteoarthritis Cartilage 2020; 28:1121-1132. [PMID: 32470597 DOI: 10.1016/j.joca.2020.05.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [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] [Received: 06/29/2019] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study investigated whether melatonin alleviates intervertebral disc degeneration (IVDD) by promoting autophagy through inhibiting the NF-κB signaling pathway. METHODS Magnetic resonance imaging (MRI), hematoxylin and eosin (H&E) staining and Safranin-O staining were used to measure disc degeneration in rat needle puncture IVDD models, and melatonin was injected intraperitoneally in the treated group to test its function. The expression of autophagy and extracellular matrix (ECM) degeneration related-markers were measured in the discs using immunohistochemistry. Transmission electron microscopy was used to evaluate the activation of autophagy in human nucleus pulposus (NP) tissues with different degenerated statuses. The expression of autophagy and disc degeneration related-markers were detected in NP cells by Western blot, RT-qPCR, and immunofluorescence analyses. NF-κB signaling pathway involvement was studied by lentivirus-mediated knockdown, Western blotting, and immunohistochemistry and immunofluorescence staining. RESULTS Melatonin prevented IVDD development in vivo and in vitro. Compared to non-degenerated disc tissues, degenerated human NP tissues showed a decrease in the autophagy-specific marker LC3B and the numbers of autophagosomes and autolysosomes, whereas the p62 level was increased; similar results were observed in rat IVDD models, indicating a negative correlation between autophagy and IVDD. Furthermore, both in vivo and in vitro studies found that melatonin application induced autophagy and reduced ECM disc degradation. Melatonin was also shown to regulate autophagy by inhibiting the NF-κB signaling pathway in vivo and vitro. CONCLUSION This study indicates that melatonin prevents IVDD by promoting autophagy, indicating its possible therapeutic potential for controlling the progression of IVDD.
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Affiliation(s)
- F Chen
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - H Liu
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - X Wang
- Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The 6th Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Z Li
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - J Zhang
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Y Pei
- Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Z Zheng
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China.
| | - J Wang
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China.
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Pan Y, Chen S, Shen L, Pei Y, Zhang Y, Xu T. Thickness change of masseter muscles and the surrounding soft tissues in female patients during orthodontic treatment: a retrospective study. BMC Oral Health 2020; 20:181. [PMID: 32600308 PMCID: PMC7325017 DOI: 10.1186/s12903-020-01168-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/19/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Facial esthetics is a major concern of orthodontic patients. This study aims to evaluate orthodontic treatment-related thickness changes of the masseter muscles and surrounding soft tissues and the potential factors that would influence these changes during orthodontic treatment in female adults. METHODS Forty-two female adult patients were included in this retrospective study and were divided into extraction (n = 22) and nonextraction (n = 20) groups. Pretreatment and posttreatment cone-beam computed tomography (CBCT) images were superimposed and reconstructed. The thickness changes of the masseter area of facial soft tissue (MAS), masseter muscles (MM) and surrounding fat tissue (FT) were measured. Pretreatment age, treatment duration, sagittal relationship (ANB), and vertical relationship (Frankfort-mandibular plane angle, FMA)-related MAS, MM and FT changes were compared between extraction and nonextraction groups. Spearman's correlation coefficient was calculated between the above variables. Regression analysis was conducted to confirm the causal relations of the variables. RESULTS The thickness of MAS and MM significantly decreased in both groups, with larger decreases (> 1 mm) in the extraction group. There were strong correlations (r > 0.7) between the thickness decrease in MAS and MM in both groups and moderate correlations (r > 0.4) between MAS and FT in the nonextraction group. A significantly greater decrease of MAS and MM were found to be moderately correlated with a smaller FMA (r > 0.4) in the extraction group. Scatter plots and regression analysis confirmed these correlations. CONCLUSIONS Masseter muscles and the surrounding soft tissue exhibited a significant decrease in thickness during orthodontic treatment in female adults. Low-angle patients experienced a greater decrease in soft tissue thickness in the masseter area in the extraction case. But the thickness changes were clinically very small in most patients.
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Affiliation(s)
- Yichen Pan
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China.,Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China
| | - Si Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China. .,National Engineering Laboratory for Digital and Material Technology of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China. .,Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China.
| | - Linhui Shen
- Third Clinical Division, Peking University School and Hospital of Stomatology, Block A, Gaode Building, Huayuan East Road, Haidian District, Beijing, 100083, PR China
| | - Yuru Pei
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Science Building 2, No.5 Yiheyuan Road Haidian District, Beijing, 100871, PR China
| | - Yungeng Zhang
- Key Laboratory of Machine Perception (MOE), Department of Machine Intelligence, Peking University, Science Building 2, No.5 Yiheyuan Road Haidian District, Beijing, 100871, PR China
| | - Tianmin Xu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China. .,National Engineering Laboratory for Digital and Material Technology of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China. .,Beijing Key Laboratory of Digital Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China.
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Wang YJ, Du J, Pei Y, Chen K, Yang GQ, Wang XL, Guo QH, Lyu ZH, Ba JM, Dou JT, Mu YM. [A case of lymphocytic hypophysitis presenting as spontaneous resolution of a pituitary mass]. Zhonghua Nei Ke Za Zhi 2020; 59:62-65. [PMID: 31887839 DOI: 10.3760/cma.j.issn.0578-1426.2020.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y J Wang
- Department of Endocrinology, the First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
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Patel N, Frosi Stella S, Hsiao R, Gurevich A, Kostrzewa M, Iliuta I, Tai E, Jaberi A, Pei Y, Shlomovitz E. 4:12 PM Abstract No. 116 Safety of high-dose 3% sodium tetradecyl sulfate for sclerotherapy treatment of renal cysts in autosomal dominant polycystic kidney disease: a five-year study. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.146] [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: 10/25/2022] Open
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29
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Chen Y, Liu W, Xu H, Liu J, Deng Y, Cheng H, Zhan T, Lu X, Liao T, Guo L, Zhu S, Pei Y, Hu J, Hu Z, Liu X, Wang X, Gu M, Hu S, Liu X. Gga-miR-19b-3p Inhibits Newcastle Disease Virus Replication by Suppressing Inflammatory Response via Targeting RNF11 and ZMYND11. Front Microbiol 2019; 10:2006. [PMID: 31507581 PMCID: PMC6718473 DOI: 10.3389/fmicb.2019.02006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/15/2019] [Indexed: 12/27/2022] Open
Abstract
Newcastle disease (ND), an acute and highly contagious avian disease caused by virulent Newcastle disease virus (NDV), often results in severe economic losses worldwide every year. Although it is clear that microRNAs (miRNAs) are implicated in modulating innate immune response to invading microbial pathogens, their role in host defense against NDV infection remains largely unknown. Our prior study indicates that gga-miR-19b-3p is up-regulated in NDV-infected DF-1 cells (a chicken embryo fibroblast cell line) and functions to suppress NDV replication. Here we report that overexpression of gga-miR-19b-3p promoted the production of NDV-induced inflammatory cytokines and suppressed NDV replication, whereas inhibition of endogenous gga-miR-19b-3p expression had an opposite effect. Dual-luciferase and gene expression array analyses revealed that gga-miR-19b-3p directly targets the mRNAs of ring finger protein 11 (RNF11) and zinc-finger protein, MYND-type containing 11 (ZMYND11), two negative regulators of nuclear factor kappa B (NF-κB) signaling, in DF-1 cells. RNF11 and ZMYND11 silencing by small interfering RNA (siRNA) induced NF-κB activity and inflammatory cytokine production, and suppressed NDV replication; whereas ectopic expression of these two proteins exhibited an opposite effect. Our study provides evidence that gga-miR-19b-3p activates NF-κB signaling by targeting RNF11 and ZMYND11, and that enhanced inflammatory cytokine production is likely responsible for the suppression of NDV replication.
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Affiliation(s)
- Yu Chen
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Wen Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Haixu Xu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Jingjing Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yonghuan Deng
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Hao Cheng
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Tiansong Zhan
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaolong Lu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Tianxing Liao
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Lili Guo
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Shanshan Zhu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yuru Pei
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Jiao Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou University, Yangzhou, China
| | - Zenglei Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaowen Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou University, Yangzhou, China
| | - Xiaoquan Wang
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Min Gu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
| | - Shunlin Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
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Chen Y, Liu W, Xu H, Liu J, Deng Y, Cheng H, Zhu S, Pei Y, Hu J, Hu Z, Liu X, Wang X, Gu M, Hu S, Liu X. MicroRNA Expression Profiling in Newcastle Disease Virus-Infected DF-1 Cells by Deep Sequencing. Front Microbiol 2019; 10:1659. [PMID: 31396181 PMCID: PMC6663980 DOI: 10.3389/fmicb.2019.01659] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 07/04/2019] [Indexed: 12/11/2022] Open
Abstract
Newcastle disease virus (NDV), causative agent of Newcastle disease (ND), is one of the most devastating pathogens for poultry industry worldwide. MicroRNAs (miRNAs) are non-coding RNAs that regulate gene expression by regulating mRNA translation efficiency or mRNA abundance through binding to mRNA directly. Accumulating evidence has revealed that cellular miRNAs can also affect virus replication by controlling host-virus interaction. To identify miRNA expression profile and explore the roles of miRNA during NDV replication, in this study, small RNA deep sequencing was performed of non-inoculated DF-1 cells (chicken embryo fibroblast cell line) and JS 5/05-infected cells collected at 6 and 12 h post infection (hereafter called mock' NDV-6 h, and NDV-12 h groups respectively). A total of 73 miRNAs of NDV-6 h group and 64miRNAs of NDV-12 h group were significantly differentially expressed (SDE) when compared with those in mock group. Meanwhile, 50 SDE miRNAs, including 48 up- and 2 down-regulated, showed the same expression patterns in NDV-6 h and NDV-12 h groups. qRT-PCR validation of 15 selected miRNAs' expression patterns was consistent with deep sequencing. To investigate the role of these SDE miRNAs in NDV replication, miRNA mimics and inhibitors were transfected into DF-1 cells followed by NDV infection. The results revealed that gga-miR-451 and gga-miR-199-5p promoted NDV replication while gga-miR-19b-3p and gga-miR-29a-3p inhibited NDV replication. Further function research demonstrated gga-miR-451 suppressed NDV-induced inflammatory response via targeting YWHAZ (tyrosine3-monooxygenase/tryptophan5-monooxygenase activation protein zeta). Overall, our study presented a global miRNA expression profile in DF-1 cells in response to NDV infection and verified the roles of some SDE miRNAs in NDV replication which will underpin further studies of miRNAs' roles between the host and the virus.
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Affiliation(s)
- Yu Chen
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Wen Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Haixu Xu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Jingjing Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yonghuan Deng
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Hao Cheng
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Shanshan Zhu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yuru Pei
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Jiao Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Zenglei Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaowen Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaoquan Wang
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Min Gu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Shunlin Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
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Tai E, Qazi A, Chan T, Zener R, Iliuta I, Barua M, Khalili K, Jaberi A, Pei Y, Shlomovitz E. 04:12 PM Abstract No. 419 3% STS foam sclerotherapy of liver cysts is effective and durable for cyst volume reduction in autosomal dominant polycystic kidney disease patients. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Liu DD, Zhou W, Li PL, Zhang JL, Chen W, Gu WJ, Pei Y, Du J, Zang L, Ba JM, Lü ZH, Mu YM, Shan BC, Zhang YL, Ma L, Dou JT. [Differences of brain functional alterations between subtypes of Cushing's syndrome patients]. Zhonghua Yi Xue Za Zhi 2019; 99:593-598. [PMID: 30818928 DOI: 10.3760/cma.j.issn.0376-2491.2019.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To compare the differences of brain functional damage of subtypes of patients with Cushing's syndrome (CS). Methods: A total of 11 adrenocorticotropic hormone (ACTH)-dependent CS patients and 29 ACTH-independent CS patients were recruited from Chinese PLA General Hospital between September 2015 and March 2017 with confirmed CS. The psychiatric scales and brain task functional magnetic resonance imaging (fMRI) were evaluated. Results: A total of 40 patients (34 females, 6 males) with a mean age of (39.20±12.10) years and a median education level of 12 (9, 16) years were enrolled. ACTH-dependent patients had significantly worse performance than the ACTH-independent patients in response to the depression evaluation (64.6±6.1 vs 56.2±12.8, P=0.008), positive emotion (17.8±4.2 vs 24.3±7.2, P=0.008) and CS life quality [31(29,33) vs 42(29,51), P=0.040]. In the reaction to positive target pictures, ACTH-dependent CS patients showed stronger activation in left superior temporal gyrus compared with patients in ACTH-independent group, while the activation degree of their bilateral dorsal anterior cingulate cortex, bilateralsuperior frontal gyrus and left middle frontal gyrus was much worse. In the reactions to negative target pictures, ACTH-dependent CS patients had weaker activation in bilateral cerebellum, left superior frontal gyrus, left middle frontal gyrus, left precuneus and right postcentral gyrus, compared with patients in the ACTH-independent CS group (P<0.01, AlphaSim corrected). The activation degree of some regions whose brain function was different between the two groups was correlated to the cortisol level, ACTH level, 24 h urinary free cortisol (UFC) level, depression evaluation and negative emotion assessment (all P<0.05). Conclusions: The severity of the depression and the life quality of patients in ACTH-dependent group are worse than ACTH-independent CS patients. The brain function of ACTH-dependent CS patients is much weaker.
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Affiliation(s)
- D D Liu
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China( is working in the Department of Endocrinology, Baoding First Central Hospital, Baoding 071000, China)
| | - W Zhou
- Department of Radiology, Chinese PLA General Hospital, Beijing 100853, China
| | - P L Li
- Division of Nuclear Technology and Applications, Institute of High Energy Physics, Beijing 100049, China
| | - J L Zhang
- Department of Pharmacology School of Medicine, Nankai University, Tianjin 300071, China
| | - W Chen
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
| | - W J Gu
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
| | - Y Pei
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
| | - J Du
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
| | - L Zang
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
| | - J M Ba
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
| | - Z H Lü
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
| | - Y M Mu
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
| | - B C Shan
- Division of Nuclear Technology and Applications, Institute of High Energy Physics, Beijing 100049, China
| | - Y L Zhang
- Department of Endocrinology, Baoding First Central Hospital, Baoding 071000, China
| | - L Ma
- Department of Radiology, Chinese PLA General Hospital, Beijing 100853, China
| | - J T Dou
- Department of Endocrinology, Chinese PLA General Hospital, Key Laboratory of Endocrinology and Metabolism of PLA, Beijing 100853, China
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Cong Z, Pei Y. WHOSE EDUCATION COUNTS? CHILDREN’S EDUCATION AND OLDER PARENTS’ PSYCHOLOGICAL WELL-BEING IN RURAL CHINA. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Z Cong
- Texas Tech University, Lubbock, Texas, United States
| | - Y Pei
- Human Development and Family Studies, Texas Tech University, Lubbock, TX, USA
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Cong Z, Pei Y, Silverstein M, Li S. HOW DO INTERGENERATIONAL RELATIONSHIPS CHANGE WHEN PARENT’S DEATH GETS CLOSER? Innov Aging 2018. [DOI: 10.1093/geroni/igy023.846] [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)
- Z Cong
- Texas Tech University, Lubbock, Texas, United States
| | - Y Pei
- Human Development and Family Studies, Texas Tech University, TX, USA
| | - M Silverstein
- Sociology, Human Development and Family Science, Syracuse Unviersity, NY, USA
| | - S Li
- Institute for Population and Development Studies, Xi’an Jiaotong University, China
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Pei Y, Yi Y, Ma G, Kim TK, Guo Y, Xu T, Zha H. Spatially Consistent Supervoxel Correspondences of Cone-Beam Computed Tomography Images. IEEE Trans Med Imaging 2018; 37:2310-2321. [PMID: 29993683 DOI: 10.1109/tmi.2018.2829629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Establishing dense correspondences of cone-beam computed tomography (CBCT) images is a crucial step for the attribute transfer and morphological variation assessment in clinical orthodontics. In this paper, a novel method, unsupervised spatially consistent clustering forest, is proposed to tackle the challenges for automatic supervoxel-wise correspondences of CBCT images. A complexity analysis of the proposed method with respect to the clustering hypotheses is provided with a data-dependent learning guarantee. The learning bound considers both the sequential tree traversals determined by questions stored in branch nodes and the clustering compactness of leaf nodes. A novel tree-pruning algorithm, guided by the learning bound, is also proposed to remove locally inconsistent leaf nodes. The resulting forest yields spatially consistent affinity estimations, thanks to the pruning penalizing trees with inconsistent leaf assignments and the combinational contextual feature channels used to learn the forest. A forest-based metric is utilized to derive the pairwise affinities and dense correspondences of CBCT images. The proposed method has been applied to the label propagation of clinically captured CBCT images. In the experiments, the method outperforms variants of both supervised and unsupervised forest-based methods and state-of-the-art label-propagation methods, achieving the mean dice similarity coefficients of 0.92, 0.89, 0.94, and 0.93 for the mandible, the maxilla, the zygoma arch, and the teeth data, respectively.
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Liang J, Zhu Y, Liu XK, Qiu QQ, Sun YT, Wang Y, Pei Y, Yang MQ, Qi L. Protective Effects of an Obesity-Associated Polymorphism (CDKAL1 rs9356744) on Prediabetes: The Cardiometabolic Risk in Chinese (CRC) Study. Exp Clin Endocrinol Diabetes 2018; 126:540-545. [PMID: 29933462 DOI: 10.1055/s-0042-109607] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Abstract
Background Obesity is strongly associated with insulin resistance and elevated plasma glucose levels. The rs9356744 polymorphism in the CDKAL1 gene is associated with body mass index (BMI) only in East Asians. Here, we examined the effect of the rs9356744 polymorphism on glucose-related traits and prediabetes in Chinese adults.
Methods A total of 2 357 participants were enrolled from the Cardiometabolic Risk in Chinese (CRC) Study, including 499 persons with prediabetes, 204 persons with type 2 diabetes, and 1 654 normoglycemic controls. The rs9356744 polymorphism in CDKAL1 was genotyped and analyzed in all participants.
Results Despite the positive relationship between obesity and glucose traits, the T allele of rs9356744, which is associated with a predisposition to obesity, was correlated with lower levels of 2-h oral glucose tolerance test (OGTT) plasma glucose (2hPG) (β=− 0.2104 and P=0.0233), glycated hemoglobin (HbA1c) (β=− 0.0551 and P=0.0298) and higher levels of homeostasis model of assessment β-cell function (HOMA-B) (β=5.282 and P=0.0424). After further adjustment for BMI, the levels of HOMA-B maintained a similar increased trend across rs9356744 genotype (β=3.277 and P=0.1958). In stratified analyses, the associations of rs9356744 with 2hPG and HbA1c were significant for individuals with a low BMI. Moreover, an antagonism action of BMI and rs9356744 on 2hPG (P for interaction=0.0055) was observed. In addition, we found a protective effect of rs9356744 on prediabetes.
Conclusions The CDKAL1 rs9356744 T allele associated with a predisposition to obesity showed a protective effect on HbA1c, 2hPG, and prediabetes. BMI was mediator of the association between the genetic variant and HbA1c, 2hPG, and prediabetes.
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Affiliation(s)
- J. Liang
- Department of Endocrinology and Central Laboratory, Xuzhou Central Hospital, Jiangsu, China
- Xuzhou Clinical School of Xuzhou Medical College, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, China
- Xuzhou Institute of Medical Sciences, Xuzhou Institute of Diabetes, Jiangsu, China
| | - Y Zhu
- Xuzhou Medical College, Xuzhou, China
| | - X.-k. Liu
- Department of Endocrinology and Central Laboratory, Xuzhou Central Hospital, Jiangsu, China
- Xuzhou Clinical School of Xuzhou Medical College, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, China
| | - Q.-q Qiu
- Department of Endocrinology and Central Laboratory, Xuzhou Central Hospital, Jiangsu, China
- Xuzhou Clinical School of Xuzhou Medical College, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, China
- Xuzhou Institute of Medical Sciences, Xuzhou Institute of Diabetes, Jiangsu, China
| | - Y.-t. Sun
- Xuzhou Medical College, Xuzhou, China
| | - Y. Wang
- Department of Endocrinology and Central Laboratory, Xuzhou Central Hospital, Jiangsu, China
- Xuzhou Clinical School of Xuzhou Medical College, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, China
- Xuzhou Institute of Medical Sciences, Xuzhou Institute of Diabetes, Jiangsu, China
| | - Y. Pei
- School of Medicine, Southeast University, Nanjing, China
| | - M.-q. Yang
- Department of Endocrinology and Central Laboratory, Xuzhou Central Hospital, Jiangsu, China
- Xuzhou Clinical School of Xuzhou Medical College, Affiliated Hospital of Southeast University, Xuzhou, Jiangsu, China
- Xuzhou Institute of Medical Sciences, Xuzhou Institute of Diabetes, Jiangsu, China
| | - L. Qi
- Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, United States
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Wijeyesinghe E, Pei Y, Feritori S, Uldall P. Right Atrial Ball Thrombus as a Complication of Subclavian Catheter Insertion for Hemodialysis Access. Int J Artif Organs 2018. [DOI: 10.1177/039139888701000208] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In two patients right atrial ball thrombi developed following prolonged subclavian cannulation for hemodialysis. One patient died, the other had the ball thrombus removed by open heart surgery. It appears that repeated friction of the catheter tip may have damaged the endothelium of the right atrial wall. This hitherto unrecognised complication might be prevented by ensuring that subclavian hemodialysis catheters are never allowed to reach as far as the right atrium.
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Affiliation(s)
| | - Y. Pei
- Toronto General Hospital, Canada
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Wei Q, Yang GQ, Li YJ, Zang L, Pei Y, Du J, Gu WJ, Ba JM, Lü ZH, Dou JT, Mu YM, Lu JM. [Clinical features and prognosis of 18 cases of primary lymphocytic hypophysitis]. Zhonghua Yi Xue Za Zhi 2018; 98:102-108. [PMID: 29343033 DOI: 10.3760/cma.j.issn.0376-2491.2018.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze clinical features, prognosis and treatment of lymphocytic hypophysitis (LYH). Methods: The clinical data, treatments and outcomes of 18 cases diagnosed as LYH at Chinese PLA General Hospital between January 2001 and July 2017 was respectively reviewed. Results: Eighteen patients with histology-proven LYH (13 females and 5 males ) were identified. All lymphocytic adenohypophysitis (LAH) were females(n=6), two of whom were associated with pregnancy. Eleven patients (6 females and 5 males) had lymphocytic panhypophysitis (LPH) and one(female) had hypothalamitis. Pre-treatment evaluation revealed that 11 patients presented with symptoms of intracranial space-occupying lesions, 12 patients had symptoms of anterior pituitary hormone deficiencies, and 12 patients had central diabetes insipidus (CDI). All patients had space-occupying lesions on magnetic resonance imaging (MRI), which were symmetrically enlarged and homogenously enhanced with or without pituitary stalk thickening. Before or after surgery, 11 patients received immunosuppressant therapy or radiotherapy to alleviate space-occupying effect. After 4-204 months follow-up, 5 patients had a relapse and received immunosuppressants, radiotherapy or surgery to achieve remission. Full recovery (both symptomatic and radiographic) was seen in 6 patients, and 11 patients maintained stable replacement therapy. Conclusions: LYH presents with acute space-occupying effects such as headache, visual disturbances, hypopituitarism, CDI and mild hyperprolactinemia, especially with characteristic radiographic manifestations. Usually, surgery reliably establishes diagnosis, and immunosuppressant therapy is a necessity. On the whole, LYH has a good prognosis.
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Affiliation(s)
- Q Wei
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
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Shen Y, Zhang H, Zhang L, Li H, Mao H, Pei Y, Jing Z, Lu Q. Transcatheter aortic valve replacement with balloon-expandable valve : Analysis of initial experience in China. Herz 2017; 43:746-751. [PMID: 29236149 PMCID: PMC6280821 DOI: 10.1007/s00059-017-4622-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/21/2017] [Accepted: 08/31/2017] [Indexed: 11/28/2022]
Abstract
Background Transcatheter aortic valve replacement (TAVR) is widely applied for the treatment of severe aortic stenosis (AS) in developed countries; however, in China, it is still in the early stage of utilization. On the basis of previous studies, this work explored the feasibility of TAVR in patients with severe AS in China and analyzed the cause of death in four cases. Methods This retrospective study included 20 patients who had severe AS and underwent TAVR with a balloon-expandable system (Edwards SAPIEN XT) in our hospital from January 2011 to June 2016. The valve and heart functions of 16 survivors before and after the TAVR procedure were compared. TAVR endpoints, device success, and adverse events were assessed according to the definitions of the Valve Academic Research Consortium-2 (VARC-2). Results There were 13 male and seven female patients aged 65–81 years (average, 73.15) who underwent TAVR. The TAVR approach was transfemoral in 19 patients and transapical in one patient. Four patients died (two of coronary artery occlusion and two of aortic annulus rupture) during the TAVR procedure or shortly after; six patients had mild paravalvular leakage, and the rest of the patients showed a significant improvement in cardiac function. During the follow-up period (2–62 months), one patient died of lung cancer 13 months after the TAVR procedure. Conclusion TAVR with a balloon-expandable system is safe and effective and can be used for patients with severe AS in China. It requires careful patient selection and preoperative assessment so as to reduce the 30-day postoperative mortality rate.
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Affiliation(s)
- Y Shen
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - H Zhang
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - L Zhang
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - H Li
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - H Mao
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - Y Pei
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - Z Jing
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - Q Lu
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China.
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Chen G, Li LL, Sun J, Gu WJ, Jin N, Yan WH, Chen K, Du J, Wang XL, Zang L, Pei Y, Guo QH, Yang GQ, Ba JM, Lyu ZH, Lu JM, Mu YM, Dou JT. [Clinical characteristics of 128 hospitalized patients with syndrome of inappropriate antidiuretics of different etiologies]. Zhonghua Nei Ke Za Zhi 2017; 56:816-821. [PMID: 29136710 DOI: 10.3760/cma.j.issn.0578-1426.2017.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize and analyze the clinical features and etiologies in hospitalized patients with syndrome of inappropriate antidiuretics (SIAD) during the past 25 years. Methods: All data of 128 patients with SIAD admitted to Chinese PLA General Hospital since January 1991 to January 2016 were collected. SIAD was diagnosed based on the 1957 criterion. Results: (1) The most frequent causes of increased inappropriate secretion of vasopressin were malignant tumors, lung diseases (e. g. pneumonia), and central nervous system diseases, in which malignant tumors accounted for 38.28% of the SIAD. (2) During the past 25 years, the proportion of malignant diseases declined from 4/7 to 35.29%, while, the proportion of pulmonary infection increased from 1/7 to 35.29% (P<0.05). (3) The patients with malignant tumors had the lowest serum sodium and serum osmolality among all SIAD patients. (4) CT scan had a high diagnostic value for chest and brain detection. (5) Among three SIAD subjects with unknown reasons at onset, two were diagnosed with small cell lung cancer and one with gastric cancer during follow-up. Conclusion: The etiology of SIAD is complex and it could be attributed to multifarious etiological factors. Malignant tumors account for the largest proportion of all patients, and pulmonary infection was ranked in second place. Cautions on tumors have to be taken when serum sodium of a SIAD patient is below 118.1 mmol/L.
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Affiliation(s)
- G Chen
- Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
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Wang L, Pei Y, Li S, Zhang S, Yang Y. P1.14-004 Outcomes of Stereotactic Body Radiotherapy and Surgery in Treating Early Stage Non-Small Cell Lung Cancer: A Meta-Analysis. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Cui L, Chen L, Xia W, Jiang Y, Cui L, Huang W, Wang W, Wang X, Pei Y, Zheng X, Wang Q, Ning Z, Li M, Wang O, Xing X, Lin Q, Yu W, Weng X, Xu L, Cummings SR. Vertebral fracture in postmenopausal Chinese women: a population-based study. Osteoporos Int 2017; 28:2583-2590. [PMID: 28560474 DOI: 10.1007/s00198-017-4085-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 05/08/2017] [Indexed: 01/16/2023]
Abstract
UNLABELLED In a random sample of postmenopausal Chinese women, the prevalence of radiographic vertebral fractures increased from 13% between ages 50 and 59 to over 50% after age 80 years. A model with seven clinical risk factors predicted the probability of vertebral fractures as well with as without BMD and better than a model with only three risk factors. More than half an hour of outdoor activity per day might correlate with lower risk of vertebral fracture in this population. INTRODUCTION We aimed to describe the prevalence and develop a model for prediction of radiographic vertebral fractures in a large random sample of postmenopausal Chinese women. METHODS We enrolled 1760 women from an age-stratified random sample of postmenopausal women in Beijing, China. The presence of vertebral fracture was assessed by semi-quantitative grading of lateral thoracolumbar radiographs, risk factors by interview, bone mineral density (BMD) of the proximal femur and lumbar spine by dual x-ray absorptiometry (DXA), and markers of bone turnover from a fasting blood sample. Associations of these factors were analyzed in logistic models and discrimination by areas of receiver operating characteristics curves (AUC). RESULTS The prevalence of vertebral fracture, ranged from 13.4% ages 50 to 59 years old to 58.1% at age 80 years or older. Older age, a history of non-vertebral fracture, lower femoral neck BMD T-score, body mass index (BMI), height loss, housework, and less than half an hour of outdoor activity were significantly associated with increased probability of having a vertebral fracture. A model with those seven factors had a similar AUC with or without BMD and performed better than a simple model with three factors. CONCLUSION This study is from a true random sample of postmenopausal women in urban China with high response rate. The prevalence of vertebral fractures in postmenopausal women in Beijing increases from 13% under age 60 to over 50% by age 80 years. A model with seven clinical risk factors with or without BMD is better than simple models and may guide the use of spine x-rays to identify women with vertebral fractures. More than half an hour of outdoor activity might correlate with lower risk of vertebral fracture in this population.
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Affiliation(s)
- L Cui
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
- Department of Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - L Chen
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - W Xia
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China.
| | - Y Jiang
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - L Cui
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - W Huang
- Department of Endocrinology, BeiJing HaiDian Hospital, Beijing, 100080, China
| | - W Wang
- Department of Endocrinology, Peking University Shougang Hospital, Beijing, 100144, China
| | - X Wang
- Department of Cadre Unit, General Hospital of the Second Artillery Force, Beijing, 100088, China
| | - Y Pei
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, Beijing, 100853, China
| | - X Zheng
- Department of Endocrinology, China Rehabilitation Research Center, Beijing, 100068, China
| | - Q Wang
- Department of Endocrinology, Beijing Liangxiang Hospital, Beijing, 102401, China
| | - Z Ning
- Department of Endocrinology, Beijing Chaoyang Hospital, Beijing, 100020, China
| | - M Li
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - O Wang
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - X Xing
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - Q Lin
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - W Yu
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - X Weng
- Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - L Xu
- Department of Gynaecology and Obstetrics, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, 100730, China
| | - S R Cummings
- San Francisco Coordinating Center, CPMC Research Institute and Department of Epidemiology and Biostatistics, University of California, San Francisco, USA
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Pei Y, Ma G, Chen G, Zhang X, Xu T, Zha H. Superimposition of Cone-Beam Computed Tomography Images by Joint Embedding. IEEE Trans Biomed Eng 2017; 64:1218-1227. [DOI: 10.1109/tbme.2016.2598584] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Baghbaderani BA, Syama A, Sivapatham R, Pei Y, Mukherjee O, Tian X, Tran H, Menendez L, Fellner T, Zeng X, Rao M. Assay development and cell characterization challenges of human induced pluripotent stem cells for cell therapy applications. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Zener R, Iliuta I, Shi B, Barua M, Khalili K, Pei Y, Shlomovitz E. Safety and efficacy of 3% sodium tetradecyl sulfate foam sclerotherapy in the treatment of renal cysts in autosomal dominant polycystic kidney disease. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Speake C, Pichugin A, Sahu T, Malkov V, Morrison R, Pei Y, Juompan L, Milman N, Zarling S, Anderson C, MacDonald NJ, Wong-Madden S, Wendler J, Ishizuka A, MacMillen ZW, Garcia V, Kappe SH, Krzych U, Duffy PE. Correction: Identification of Novel Pre-Erythrocytic Malaria Antigen Candidates for Combination Vaccines with Circumsporozoite Protein. PLoS One 2016; 11:e0165489. [PMID: 27764243 PMCID: PMC5072645 DOI: 10.1371/journal.pone.0165489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
[This corrects the article DOI: 10.1371/journal.pone.0159449.].
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Abstract
PURPOSE Tooth segmentation is an essential step in acquiring patient-specific dental geometries from cone-beam computed tomography (CBCT) images. Tooth segmentation from CBCT images is still a challenging task considering the comparatively low image quality caused by the limited radiation dose, as well as structural ambiguities from intercuspation and nearby alveolar bones. The goal of this paper is to present and discuss the latest accomplishments in semisupervised tooth segmentation with adaptive 3D shape constraints. METHODS The authors propose a 3D exemplar-based random walk method of tooth segmentation from CBCT images. The proposed method integrates semisupervised label propagation and regularization by 3D exemplar registration. To begin with, the pure random walk method is to get an initial segmentation of the teeth, which tends to be erroneous because of the structural ambiguity of CBCT images. And then, as an iterative refinement, the authors conduct a regularization by using 3D exemplar registration, as well as label propagation by random walks with soft constraints, to improve the tooth segmentation. In the first stage of the iteration, 3D exemplars with well-defined topologies are adapted to fit the tooth contours, which are obtained from the random walks based segmentation. The soft constraints on voxel labeling are defined by shape-based foreground dentine probability acquired by the exemplar registration, as well as the appearance-based probability from a support vector machine (SVM) classifier. In the second stage, the labels of the volume-of-interest (VOI) are updated by the random walks with soft constraints. The two stages are optimized iteratively. Instead of the one-shot label propagation in the VOI, an iterative refinement process can achieve a reliable tooth segmentation by virtue of exemplar-based random walks with adaptive soft constraints. RESULTS The proposed method was applied for tooth segmentation of twenty clinically captured CBCT images. Three metrics, including the Dice similarity coefficient (DSC), the Jaccard similarity coefficient (JSC), and the mean surface deviation (MSD), were used to quantitatively analyze the segmentation of anterior teeth including incisors and canines, premolars, and molars. The segmentation of the anterior teeth achieved a DSC up to 98%, a JSC of 97%, and an MSD of 0.11 mm compared with manual segmentation. For the premolars, the average values of DSC, JSC, and MSD were 98%, 96%, and 0.12 mm, respectively. The proposed method yielded a DSC of 95%, a JSC of 89%, and an MSD of 0.26 mm for molars. Aside from the interactive definition of label priors by the user, automatic tooth segmentation can be achieved in an average of 1.18 min. CONCLUSIONS The proposed technique enables an efficient and reliable tooth segmentation from CBCT images. This study makes it clinically practical to segment teeth from CBCT images, thus facilitating pre- and interoperative uses of dental morphologies in maxillofacial and orthodontic treatments.
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Affiliation(s)
- Yuru Pei
- Department of Machine Intelligence, School of EECS, Peking University, Beijing 100871, China
| | - Xingsheng Ai
- Department of Machine Intelligence, School of EECS, Peking University, Beijing 100871, China
| | - Hongbin Zha
- Department of Machine Intelligence, School of EECS, Peking University, Beijing 100871, China
| | - Tianmin Xu
- School of Stomatology, Stomatology Hospital, Peking University, Beijing 100081, China
| | - Gengyu Ma
- uSens, Inc., San Jose, California 95110
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48
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Cheng Z, Wang M, Xu C, Pei Y, Liu JC, Huang H, He D, Lu P. Mutational analysis of HOXA10 gene in Chinese patients with cryptorchidism. Andrologia 2016; 49. [PMID: 27108669 DOI: 10.1111/and.12592] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2016] [Indexed: 12/14/2022] Open
Abstract
Cryptorchidism is one of the most common congenital anomalies and affects 2-4% of full-term new born boys. Its aetiology is poorly understood at present. HOXA10 plays a pivotal role in regulation of testicular descent. Male mice mutant for Hoxa10 exhibit unilateral or bilateral cryptorchidism as a result of impaired development of the gubernaculums. In this study, we performed mutation analysis of HOXA10 gene in a cohort of 98 cryptorchid patients. And we found a mutation (N27K) in a boy with unilateral cryptorchidism. The mutation was not detected in 106 healthy controls. Both in silico analyses and functional studies showed that the mutation affected the function of HOXA10. The results demonstrated that mutation in HOXA10 gene contributes to the pathogenesis of cryptorchidism, but may not be a common cause.
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Affiliation(s)
- Z Cheng
- School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - M Wang
- Department of Obstetrics and Gynecology, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - C Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research and Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China
| | - Y Pei
- School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - J C Liu
- School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - H Huang
- School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - D He
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - P Lu
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
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49
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Zhu T, Wang J, Pei Y, Wang Q, Wu Y, Qiu G, Zhang D, Lv M, Li W, Zhang J. Neddylation controls basal MKK7 kinase activity in breast cancer cells. Oncogene 2015; 35:2624-33. [PMID: 26364603 DOI: 10.1038/onc.2015.323] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 06/26/2015] [Accepted: 07/24/2015] [Indexed: 12/18/2022]
Abstract
The c-Jun NH2-terminal protein kinase (JNK) pathway has been implicated in mammary tumor development. However, the molecular mechanisms regulating JNK activity in breast cancer cells remain unclear. Here, we report that the inhibition of ubiquitination-like post-translational modification neddylation through different strategies results in enhanced basal JNK phosphorylation in human breast cancer cells. The upregulation of basal JNK phosphorylation upon neddylation inhibition is independent of the deneddylation of Cullins, the well-characterized neddylation substrates. Since augmented basal JNK phosphorylation via ectopic MKK7 expression impedes proliferation and the epithelial-to-mesenchymal transition (EMT) phenotype, the neddylation system might contribute to mammary tumor development partially through limiting basal JNK phosphorylation. Further exploration reveals that MKK7, a JNK-specific MAP2K, undergoes neddylation in human breast cancer cells. MKK7 co-precipitates with a fragment of Ran-binding protein 2 (RanBP2), a large multimodular and pleiotropic protein that has been recognized as a SUMO E3 ligase. Knockdown of RanBP2 attenuates MKK7 neddylation and augments basal JNK phosphorylation without affecting the neddylation of Cullins, whereas ectopic expression of a RanBP2 fragment possessing SUMO E3 activity (RanBP2ΔFG) manifests the opposite effects. In vitro neddylation assays confirm that RanBP2ΔFG works as the neddylation E3 ligase for MKK7. The basal kinase activity of endogenous MKK7 increases upon RanBP2 knockdown but decreases upon the ectopic expression of RanBP2ΔFG. Furthermore, purified MKK7 shows reduced basal kinase activity after in vitro neddylation by RanBP2ΔFG. Consistently, RanBP2 knockdown leads to reduced proliferation and impaired EMT phenotype in human breast cancer cells and the effects of RanBP2 knockdown are reversed by simultaneous MKK7 knockdown. Taken together, our data suggest that MKK7 undergoes neddylation in human breast cancer cells, which limits its basal kinase activity.
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Affiliation(s)
- T Zhu
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - J Wang
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - Y Pei
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - Q Wang
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - Y Wu
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - G Qiu
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - D Zhang
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - M Lv
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - W Li
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
| | - J Zhang
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing, PR China
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50
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Pei Y, Kim Y, Obinata G, Genda E, Stefanov D. Robot-aided motion planning for knee joint rehabilitation with two robot-manipulators. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2013:2495-8. [PMID: 24110233 DOI: 10.1109/embc.2013.6610046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In this paper, we propose a simultaneous design method of motion and external force trajectories for knee joint rehabilitation based on the biomechanical analysis of the lower limb. In this method we assume to use two robots manipulators which provide forces and moments at shank and thigh. We developed a 7 degree of freedom musculoskeletal model of lower limb with 19 muscles. The valuation function of rehabilitation efficiency e has been maximized by Genetic Algorithm (GA) that refers to the musculoskeletal model and tunes motion trajectory of the robots and forces acting on the shank and thigh.
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