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Chang S, Yang S, Yu T, Zhang Q, Lin Y, Ren Q, Cheng H, Chang X, Zhu Z, Cai S, Feng J, Han J, Yang W, Qin H, Wang H. A Primary Report 166 Cases of Abdominal or Pelvic Neuroblastoma Surgery Utilizing the International Neuroblastoma Surgical Report Form (INSRF). Ann Surg 2024:00000658-990000000-00834. [PMID: 38557705 DOI: 10.1097/sla.0000000000006292] [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: 04/04/2024]
Abstract
BACKGROUND AND AIMS Surgery is pivotal in the management of neuroblastoma (NB), particularly in patients with Image-Defined Risk Factors (IDRFs). The International Neuroblastoma Surgical Report Form (INSRF) was introduced to enhance surgical reporting quality and analyze the defining role of extensive surgery in NB. This study reports our experience with INSRF and explores new criteria for evaluating the extent of surgical resection. METHODS INSRF was deployed to critically analyze 166 patients with abdominal or pelvic NB who underwent surgery at our department between October 2021 and June 2023. Patient demographics, clinical characteristics, surgical datasets, and postoperative complications were described in detail. Receiver operating characteristic (ROC) curves were used to explore a new method to evaluate the extent of resection. A questionnaire was formulated to obtain attitudes/feedback and commentary from surgical oncologists with INSRF. RESULTS 166 neuroblastoma patients with a median disease age 36.50 months. This study collated 320 INSRF reports. Among the 166 index cases, 137 were documented by two surgeons, with a concordance rate of 16.78%. Items with high inconsistency were (i) the extent of tumor resection (29.20%), (ii) renal vein involvement (25.55%), (iii) abdominal aorta encasement (16.79%), and (iv) mesenteric infiltration (17.52%). According to INSRF, the extent of resection was complete excision in 86 (51.81%) patients, minimal residual tumor < 5 cm3 in 67 (40.36%) patients, and incomplete excision > 5 cm3 in 13 (7.83%) patients. In ROC curve analysis, the number of vessels encased by tumors > 3 had a high predictive value in determining that a tumor could not be completely resected (AUC 0.916, sensitivity 0.838, specificity 0.826) using INSRF as the gold standard reference. The questionnaires showed that surgeons agreed that the extent of resection and tumor involvement of organ/vascular structures were important, while the definition and intervention(s) of intraoperative complications were less operational and understandable. CONCLUSIONS INSRF has significant clinical application in neuroblastoma surgery. The extent of resection can be predicted based on the number of tumor-encased blood vessels. Supplementary information should be considered with the INSRF to aid practitioner reporting. Multicenter studies are needed to explore the defining role of INSRF in NB surgical management.
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Affiliation(s)
- Saishuo Chang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Shen Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Tong Yu
- Department of Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Qi Zhang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yu Lin
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Qinghua Ren
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Haiyan Cheng
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Xiaofeng Chang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Zhiyun Zhu
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Siyu Cai
- Center for Clinical Epidemiology and Evidence-based Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Jun Feng
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Jianyu Han
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Wei Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Hong Qin
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Huanmin Wang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
- MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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Ren Q, Yang S, Chang S, Yang W, Cheng H, Chang X, Zhu Z, Yu T, Feng J, Han J, Mou J, Qin H, Wang H. Renal preservation in high-risk retroperitoneal neuroblastoma: Impact on survival and local progression. Eur J Surg Oncol 2024; 50:107303. [PMID: 38056023 DOI: 10.1016/j.ejso.2023.107303] [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: 05/02/2023] [Revised: 11/04/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Retroperitoneal neuroblastomas predominantly encroach upon critical structures, complicating surgical intervention and yielding elevated rates of surgery-associated complications. The kidney and renal vasculature represent the organs most susceptible to retroperitoneal neuroblastoma infiltration. Prior investigations have revealed high nephrectomy incidence and a paucity of renal-preserving surgical approaches. METHODS A retrospective analysis was undertaken, examining patients with retroperitoneal neuroblastoma who underwent surgical procedures from January 2018 to December 2019 at Beijing Children's Hospital. RESULTS The study encompassed 225 patients, presenting a median age of 37 months. Concomitant nephrectomy and tumor excision were performed in 11 (4.9%) patients, while 214 (95.1%) patients successfully preserved their kidneys during surgery. Among the patients who retained their kidneys, 8 (3.5%) experienced renal atrophy postoperatively. Predominant rationales for simultaneous nephrectomy included tumor invasion into the renal hilum (n = 9), markedly diminished function of the affected kidney (n = 2), and ureteral infiltration (n = 1). Subsequent to a median follow-up duration of 43 months, the outcomes demonstrated no considerable divergence in overall survival (OS) and event-free survival (EFS) between the nephrectomy and renal-preserving cohorts among high-risk (HR) neuroblastoma patients. Among the eight HR children who underwent nephrectomy, four experienced local recurrence. The nephrectomy cohort exhibited a significantly elevated cumulative incidence of local progression (CILP) relative to the renal-preserving group. CONCLUSION In high-risk retroperitoneal neuroblastoma patients, nephrectomy does not enhance CILP, EFS, or OS. The guiding surgical tenet involves preserving the kidney while striving for gross total resection of the primary neoplasm, barring instances of severe deterioration of the affected renal function.
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Affiliation(s)
- Qinghua Ren
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Shen Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Saishuo Chang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Wei Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Haiyan Cheng
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Xiaofeng Chang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Zhiyun Zhu
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Tong Yu
- Department of Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jun Feng
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jianyu Han
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jianing Mou
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Hong Qin
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
| | - Huanmin Wang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China; MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
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Liu S, Feng J, Ren Q, Qin H, Yang W, Cheng H, Yao X, Xu J, Han J, Chang S, Yang S, Mou J, Lin Y, He L, Wang H. Evaluating the clinical efficacy and limitations of indocyanine green fluorescence-guided surgery in childhood hepatoblastoma: A retrospective study. Photodiagnosis Photodyn Ther 2023; 44:103790. [PMID: 37696318 DOI: 10.1016/j.pdpdt.2023.103790] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/20/2023] [Accepted: 09/06/2023] [Indexed: 09/13/2023]
Abstract
BACKGROUND Indocyanine green (ICG) fluorescence guided surgery has been used to treat childhood hepatoblastoma (HB), but the advantages and disadvantages of this technique have not been fully discussed. The purpose of this study is to summarize the experience and to explore the clinical value of this technique for children with HB. METHODS 45 children with HB who underwent ICG fluorescence guided surgery (n = 22) and general surgery (n = 23) in our center from January 2020 to December 2022 were enrolled retrospectively. RESULTS All the liver tumors in the ICG group showed hyperfluorescence, including total and partial fluorescent types. With the help of ICG navigation, minimally invasive surgery was performed in 3 cases. 18.2 % of cases with tumors could not be accurately identified under white light, but could be identified by fluorescence imaging. The fluorescent cutting lines of 59.1 % of cases were consistent with the safe cutting lines. In 36.4 % of cases, the fluorescence boundary was not clear because of tumor necrosis. In 36.4 % of cases, the fluorescence could not be detected on the inner edge of the tumors because of the depth. A total of 29 ICG (+) suspicious lesions were found during the operations, of which 5 were true positive lesions. CONCLUSION ICG fluorescence guided surgery is safe and feasible in children with HB. This technique is helpful for locating tumors, determining margin and finding small lesions with negative imaging, especially in minimally invasive surgery. However, preoperative chemotherapy, tumor necrosis, tumor depth, and ICG administration impact the effect of fluorescence imaging.
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Affiliation(s)
- Shan Liu
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Jun Feng
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Qinghua Ren
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Hong Qin
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China.
| | - Wei Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China.
| | - Haiyan Cheng
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Xingfeng Yao
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Jiatong Xu
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Jianyu Han
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Saishuo Chang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Shen Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Jianing Mou
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Yu Lin
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China
| | - Lejian He
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Huanmin Wang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 NanLishi Road Xicheng District, Beijing 100045, China.
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Lin Y, Yang W, Qin H, Cheng H, Yang S, Ren Q, Xiao S, Yu L, Wang H. Erythrocytosis as the initial presentation of pediatric adrenocortical carcinoma: A case report and review of the literature. Pediatr Blood Cancer 2023; 70:e30588. [PMID: 37461126 DOI: 10.1002/pbc.30588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/06/2023] [Accepted: 07/09/2023] [Indexed: 09/26/2023]
Affiliation(s)
- Yu Lin
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Wei Yang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hong Qin
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Haiyan Cheng
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Shen Yang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Qinghua Ren
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Shuangtao Xiao
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Lianyuan Yu
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Huanmin Wang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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Cheng H, Zhang L, Yang S, Ren Q, Chang S, Jin Y, Mou W, Qin H, Yang W, Zhang X, Zhang W, Wang H. Integration of clinical characteristics and molecular signatures of the tumor microenvironment to predict the prognosis of neuroblastoma. J Mol Med (Berl) 2023; 101:1421-1436. [PMID: 37712965 DOI: 10.1007/s00109-023-02372-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 08/26/2023] [Accepted: 09/04/2023] [Indexed: 09/16/2023]
Abstract
This study aimed to analyze the clinical characteristics, cell types, and molecular characteristics of the tumor microenvironment to better predict the prognosis of neuroblastoma (NB). The gene expression data and corresponding clinical information of 498 NB patients were obtained from the Gene Expression Omnibus (GEO: GSE62564) and ArrayExpress (accession: E-MTAB-8248). The relative cell abundances were estimated using single-sample gene set enrichment analysis (ssGSEA) with the R gene set variation analysis (GSVA) package. We performed Cox regression analyses to identify marker genes indicating cell subsets and combined these with prognostically relevant clinical factors to develop a new prognostic model. Data from the E-MTAB-8248 cohort verified the predictive accuracy of the prognostic model. Single-cell RNA-seq data were analyzed by using the R Seurat package. Multivariate survival analysis for each gene, using clinical characteristics as cofactors, identified 34 prognostic genes that showed a significant correlation with both event-free survival (EFS) and overall survival (OS) (log-rank test, P value < 0.05). The pathway enrichment analysis revealed that these prognostic genes were highly enriched in the marker genes of NB cells with mesenchymal features and protein translation. Ultimately, USP39, RPL8, IL1RAPL1, MAST4, CSRP2, ATP5E, International Neuroblastoma Staging System (INSS) stage, age, and MYCN status were selected to build an optimized Cox model for NB risk stratification. These samples were divided into two groups using the median of the risk score as a cutoff. The prognosis of samples in the poor prognosis group (PP) was significantly worse than that of samples in the good prognosis group (GP) (log-rank test, P value < 0.0001, median EFS: 640.5 vs. 2247 days, median OS: 1279.5 vs. 2519 days). The risk model was also regarded as a prognostic indicator independent of MYCN status, age, and stage. Finally, through scRNA-seq data, we found that as an important prognostic marker, USP39 might participate in the regulation of RNA splicing in NB. Our study established a multivariate Cox model based on gene signatures and clinical characteristics to better predict the prognosis of NB and revealed that mesenchymal signature genes of NB cells, especially USP39, were more abundant in patients with a poor prognosis than in those with a good prognosis. KEY MESSAGES: Our study established a multivariate Cox model based on gene signatures and clinical characteristics to better predict the prognosis of NB and revealed that mesenchymal signature genes of NB cells, especially USP39, were more abundant in patients with a poor prognosis than in those with a good prognosis. USP39, RPL8, IL1RAPL1, MAST4, CSRP2, ATP5E, International Neuroblastoma Staging System (INSS) stage, age, and MYCN status were selected to build an optimized Cox model for NB risk stratification. These samples were divided into two groups using the median of the risk score as a cutoff. The prognosis of samples in the poor prognosis group (PP) was significantly worse than that of samples in the good prognosis group (GP). Finally, through scRNA-seq data, we found that as an important prognostic marker, USP39 might participate in the regulation of RNA splicing in NB.
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Affiliation(s)
- Haiyan Cheng
- Department of Surgical Oncology, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Li Zhang
- Shanghai Institute of Precision Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Shen Yang
- Department of Surgical Oncology, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Qinghua Ren
- Department of Surgical Oncology, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Saishuo Chang
- Department of Surgical Oncology, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Yaqiong Jin
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Wenjun Mou
- Laboratory of Tumor Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Hong Qin
- Department of Surgical Oncology, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Wei Yang
- Department of Surgical Oncology, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Xianwei Zhang
- Zhengzhou Key Laboratory of Precise Diagnosis and Treatment of Children's Malignant Tumors, Department of Pediatric Oncology Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, China
| | - Wancun Zhang
- Zhengzhou Key Laboratory of Precise Diagnosis and Treatment of Children's Malignant Tumors, Department of Pediatric Oncology Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, China
| | - Huanmin Wang
- Department of Surgical Oncology, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China.
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Lin Y, Yang S, Yang W, Cheng H, Chang X, Zhu Z, Feng J, Han J, Ren Q, Chang S, Liu S, Yu T, Hou B, Li P, Meng D, Zhang X, Qin H, Wang H. Pediatric adrenocortical carcinoma: clinical features and application of neoadjuvant chemotherapy. Eur J Med Res 2023; 28:411. [PMID: 37814272 PMCID: PMC10563212 DOI: 10.1186/s40001-023-01381-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 09/18/2023] [Indexed: 10/11/2023] Open
Abstract
OBJECTIVE To summarize the clinical characteristics of children with adrenocortical carcinoma (ACC) and preliminarily explore the indications for and efficacy of neoadjuvant chemotherapy in certain patients. METHODS The data of 49 children with adrenocortical tumors (ACT) in the past 15 years were retrospectively analyzed, and after pathology assessment using Weiss system grading, 40 children diagnosed with ACC were included. Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 and three-dimensional (3D) reconstruction of contrast-enhanced computed tomography data were used to evaluate the response to neoadjuvant chemotherapy. RESULTS Forty patients (17 males, 23 females) with ACC were enrolled. Abnormal hormone levels were common in children with ACC (n = 31), and in terms of clinical presentation, sexual precocity was the most common (n = 14, 35.0%), followed by Cushing's syndrome (n = 12, 30.0%). Seven of 40 children received neoadjuvant chemotherapy due to a maximum lesion diameter greater than 10 cm (n = 4), invasion of surrounding tissues (n = 2), intravenous tumor thrombus (n = 2), and/or distant metastasis (n = 2); 2 patients achieved partial response, and 5 had stable disease according to the RECIST 1.1 standard. Furthermore, 3D tumor volume reconstruction was performed in 5 children before and after neoadjuvant chemotherapy. Tumor volumes were significantly reduced in all 5 children, with a median volume reduction of 270 (interquartile range, IQR 83, 293) (range: 49-413) ml. After surgery with/without chemotherapy, the 5-year overall survival rate for all children was 90.0% (95% CI-confidence interval 80.0-100.0%), and the 5-year event-free survival rate was 81.5% (95% CI 68.0-97.7%). CONCLUSION In the diagnosis and treatment of pediatric ACC, a comprehensive endocrine evaluation is necessary to facilitate early diagnosis. Surgery and chemotherapy are important components of ACC treatment, and neoadjuvant chemotherapy should be considered for children with ACC who meet certain criteria, such as a large tumor, distant metastases, or poor general condition.
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Affiliation(s)
- Yu Lin
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Shen Yang
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Wei Yang
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Haiyan Cheng
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Xiaofeng Chang
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Zhiyun Zhu
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Jun Feng
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Jianyu Han
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Qinghua Ren
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Saishuo Chang
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Shan Liu
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Tong Yu
- Medical Imaging Center, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Boren Hou
- Department of Surgical Oncology, Baoding Children's Hospital, Baoding, 071051, Hebei, China
| | - Pengfei Li
- Department of Pediatric Oncologic Surgery, Henan Children's Hospital, Zhengzhou Children's Hospital, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, 450018, Henan, China
| | - Deguang Meng
- Department of Surgical Oncology, Baoding Children's Hospital, Baoding, 071051, Hebei, China
| | - Xianwei Zhang
- Department of Pediatric Oncologic Surgery, Henan Children's Hospital, Zhengzhou Children's Hospital, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, 450018, Henan, China
| | - Hong Qin
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China
| | - Huanmin Wang
- Department of Oncology Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China.
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Chang S, Lin Y, Yang S, Yang W, Cheng H, Chang X, Zhu Z, Feng J, Han J, Ren Q, Wang H, Qin H. Safety and feasibility of laparoscopic resection of abdominal neuroblastoma without image-defined risk factors: a single-center experience. World J Surg Oncol 2023; 21:113. [PMID: 36978162 PMCID: PMC10044736 DOI: 10.1186/s12957-023-02997-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/18/2023] [Indexed: 03/30/2023] Open
Abstract
OBJECTIVE To explore the criteria, safety and efficacy of laparoscopic surgery in pediatric neuroblastoma (NB). METHODS A retrospective study of 87 patients with NB without image-defined risk factors (IDRFs) between December 2016 and January 2021 at Beijing Children's Hospital was conducted. Patients were divided into two groups according to the surgical procedure. RESULTS Between the 87 patients, there were 54 (62.07%) cases in the open surgery group and 33 (37.93%) cases in the laparoscopic surgery group. There were no significant differences between the two groups regarding demographic characteristics, genomic and biological features, operating time or postoperative complications. However, in terms of intraoperative bleeding (p = 0.013) and the time to start postoperative feeding after surgery (p = 0.002), the laparoscopic group was obviously better than the open group. Furthermore, there was no significant difference in the prognosis between the two groups, and no recurrence or death was observed. CONCLUSION For children with localized NB who have no IDRFs, laparoscopic surgery could be performed safely and effectively. Surgeons who are skilled in this can help children reduce surgical injuries, speed up postoperative recovery, and obtain the same prognosis as open surgery.
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Affiliation(s)
- Saishuo Chang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Yu Lin
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Shen Yang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Wei Yang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Haiyan Cheng
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Xiaofeng Chang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Zhiyun Zhu
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jun Feng
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jianyu Han
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Qinghua Ren
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Huanmin Wang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
- MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
| | - Hong Qin
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
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Chang S, Yang S, Yang W, Qin H, Cheng H, Chang X, Zhu Z, Yin J, Ren Q, Yu S, Wang H. Clinical risk factors for patients with ruptured hepatoblastoma in children: a retrospective study from a single center in China. Pediatr Surg Int 2023; 39:76. [PMID: 36622431 DOI: 10.1007/s00383-022-05362-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/30/2022] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Hepatoblastoma (HB) tumor rupture is a high-risk criterion in the International Childhood Liver Tumors Strategy Group (SIOPEL) 3/4 protocol. However, the causes and risk factors for HB rupture are still unknown, and whether tumor rupture is an independent risk factor for HB prognosis is still controversial. The purpose of this study was to retrospectively analyze the clinical characteristics of children with HB tumor rupture and to search for clinical risk factors to conduct early prediction and intervention. METHODS We conducted a retrospective study of 27 patients with HB rupture between July 2009 and July 2019. To further identify the risk factors for HB rupture, we included 97 nonruptured HB patients from January 2013 to January 2019. We searched for potentially useful characteristics for HB rupture by univariate and multivariate logistic regression analyses. RESULTS There were 27 patients with HB rupture, with the median age of 31 (12, 69) months. Nineteen cases (70.37%) were spontaneous tumor rupture, 1 case (3.70%) was posttraumatic rupture, 2 cases (7.41%) were tumor rupture after the biopsy, and 5 cases (18.52%) were tumor rupture after chemotherapy. After the tumor rupture, 4 patients died of hemorrhagic shock and multiple organ dysfunction syndrome (MODS), 4 patients refused further therapy and were discharged against medical advice, and the remaining 19 patients were stable after emergency treatment. After the treatment, 14 patients survived without disease, 2 patients died, and 3 patients were lost to follow-up. The median follow-up was 48 (33, 60) months, the 3-year overall survival (OS) was 54.7%. Compared with the non-tumor rupture group by multivariate logistic regression analysis, it was found that the maximum diameter of the primary tumor > 13.4 cm, and vascular invasion were independent risk factors for tumor rupture. CONCLUSION HB rupture is rare, but it seriously threatens the life and health of children. In the acute phase of tumor rupture, surgery, rescue chemotherapy, transcatheter arterial embolization (TAE) and other supportive care can be adopted. Large tumors and vascular invasion are risk factors for HB rupture. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Saishuo Chang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Shen Yang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Wei Yang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Hong Qin
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Haiyan Cheng
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Xiaofeng Chang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Zhiyun Zhu
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jie Yin
- Medical Imaging Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Qinghua Ren
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Shijie Yu
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Huanmin Wang
- Department of Oncology Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China. .,MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
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Wang ZH, Ren Q, Liu GL, Zhou LL, Ba TH, Han XY, Ji LN. [Individualized treatment of glucokinase-maturity-onset diabetes of the young with pregnancy and analysis of glycemic variability during pregnancy: a case report]. Zhonghua Nei Ke Za Zhi 2023; 62:91-94. [PMID: 36631043 DOI: 10.3760/cma.j.cn112138-20220511-00359] [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: 01/13/2023]
Affiliation(s)
- Z H Wang
- Department of Endocrinology, Peking University People's Hospital, Beijing 100044, China
| | - Q Ren
- Department of Endocrinology, Peking University People's Hospital, Beijing 100044, China
| | - G L Liu
- Department of Obstetrics, Peking University People's Hospital, Beijing 100044, China
| | - L L Zhou
- Department of Endocrinology, Peking University People's Hospital, Beijing 100044, China
| | - T H Ba
- Department of Endocrinology, Peking University People's Hospital, Beijing 100044, China
| | - X Y Han
- Department of Endocrinology, Peking University People's Hospital, Beijing 100044, China
| | - L N Ji
- Department of Endocrinology, Peking University People's Hospital, Beijing 100044, China
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Ren Q, Chu Z, Cheng L, Cheng H. [Characteristics and significance of outer retinal thickness changes in reticular macular disease]. Zhonghua Yan Ke Za Zhi 2022; 58:1024-1032. [PMID: 36480883 DOI: 10.3760/cma.j.cn112142-20220430-00222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objective: To study the characteristics and significance of changes in the thickness of the outer retinal layer (ORL) outside the macula in patients with reticular macular disease (RMD). Methods: A cross-sectional study was conducted. The clinical data of patients who visited the Department of Ophthalmology of the First Affiliated Hospital of Guangzhou Medical University from February to September 2019 were retrospectively collected. Thirty-one patients with at least one eye (54 eyes in total) diagnosed with early/mid-stage age-related macular degeneration (AMD) were consecutively included in the AMD group, and 33 patients with at least one eye (64 eyes in total) showing subretinal wart-like deposits on optical coherence tomography images were consecutively included in the RMD group. Thirty-two volunteers aged between 50 to 90 years with a normal fundus in both eyes (64 eyes in total) were consecutively included in the healthy control (HC) group. Frequency domain optical coherence tomography was applied to examine and analyze the thickness features of the ORL, inner retinal layer and choroid at the macular fovea (F), 2 mm of the temporal edge (T), the nasal edge (N), the superior edge (S) and inferior edge (I) of the macular fovea in each group. The correlations of the thickness of ORL with the choroidal thickness and the blood flow density of the choriocapillaris layer in patients with RMD were also analyzed. Results: The thickness of ORL at the F, T, S and I sites in the RMD group was significantly thinner than that in the AMD and HC groups. The difference was most obvious at the F site [(90.27±8.93), (98.04±11.7) and (97.19±7.02)μm] in the RMD, AMD and HC groups, respectively; all P<0.01). In the logistic regression model with independent variables of the ORL thickness at the macular F site, gender and age, there was a significant association between the thickness of ORL at the F site and the incidence of RMD (odds ratio=0.926, P<0.05). The ORL and choroid in the eyes of patients with RMD were significantly thinner at the F site [(90.27±8.93) and (163.21±72.43) μm, respectively; both P<0.01] compared with the AMD [(98.04±11.7) and (235.34±64.15) μm, respectively] and HC [(97.19±7.02) and (240.08±62.27) μm, respectively] groups. However, the ORL and choroidal thickness did not show significant and strong linear correlations at multiple sites. In contrast, there was a significant linear correlation between the blood flow density of the choriocapillaris layer and the thickness of ORL at the F, T and S sites in patients with RMD (r=0.487, 0.722, 0.467, respectively; all P<0.05). Conclusions: The thickness of ORL outside the macula of eyes with RMD is thinner than that of healthy eyes and eyes with early/mid-stage AMD. The thinning of ORL outside the macula is related to the decrease in the blood flow density of the choriocapillaris layer in patients with RMD.
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Affiliation(s)
- Q Ren
- Department of Ophthalmology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z Chu
- Department of Ophthalmology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - L Cheng
- Zhongshan Ophthalmic Centre, Sun Yat-sen University, State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou 510060, China
| | - H Cheng
- Department of Ophthalmology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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Ren Q, Chen J, Liu X, Zhang S, Gu Y. Design and 3D FEM Analysis of a Flexible Piezoelectric Micromechanical Ultrasonic Transducer Based on Sc-Doped AlN Film. Sensors (Basel) 2022; 22:8100. [PMID: 36365796 PMCID: PMC9656918 DOI: 10.3390/s22218100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/05/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
In this paper, a flexible piezoelectric micromachined ultrasonic transducer (PMUT) based on Scandium (Sc)-doped Aluminum Nitride (AlN) film was designed and modeled by the three-dimensional finite element method (3D-FEM). The resonant frequency of 218.1 kHz was reported. It was noticeable that a high effective electromechanical coupling coefficient (k2eff) of 1.45% was obtained when a combination of a flexible PI and a thin Si layer was used as the PMUT supporting structure layer. Compared with a pure Si supporting layer counterpart, the coupling coefficient had been improved by 110.68%. Additionally, the increase of Sc doping concentration in AlN film further enhanced the device electromechanical coupling coefficient and resulted in an improvement for transmitting/receiving sensitivity of the proposed flexible PMUT. When the doping concentration of Sc reached 30%, the emission sensitivity was as large as 1.721 μm/V, which was 2.86 times greater than that of conventional AlN film-based PMUT. The receiving sensitivity was found to be 2.11 V/KPa, which was as high as 1.23 times the performance of an undoped device. Furthermore, the bending simulation result showed that the proposed flexible PMUT device can maintain a good mechanical stability when the bending radius is greater than 1.5 mm. The simulation of sound field characteristics demonstrated that the flexible PMUT based on AlScN could receive stable sound pressure signals under the bending radius of 1.5 cm.
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Feng L, Qian L, Yang S, Ren Q, Zhang S, Qin H, Wang W, Wang C, Zhang H, Yang J. Clinical parameters combined with radiomics features of PET/CT can predict recurrence in patients with high-risk pediatric neuroblastoma. BMC Med Imaging 2022; 22:102. [PMID: 35643445 PMCID: PMC9148481 DOI: 10.1186/s12880-022-00828-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 05/17/2022] [Indexed: 02/03/2023] Open
Abstract
Background This retrospective study aimed to develop and validate a combined model based [18F]FDG PET/CT radiomics and clinical parameters for predicting recurrence in high-risk pediatric neuroblastoma patients. Methods Eighty-four high-risk neuroblastoma patients were retrospectively enrolled and divided into training and test sets according to the ratio of 3:2. [18F]FDG PET/CT images of the tumor were segmented by 3D Slicer software and the radiomics features were extracted. The effective features were selected by the least absolute shrinkage and selection operator to construct the radiomics score (Rad_score). And the radiomics model (R_model) was constructed based on Rad_score for prediction of recurrence. Then, univariate and multivariate analyses were used to screen out the independent clinical risk parameters and construct the clinical model (C_model). A combined model (RC_model) was developed based on the Rad_score and independent clinical risk parameters and presented as radiomics nomogram. The performance of the above three models was assessed by the area under the receiver operating characteristic curve (AUC) and decision curve analysis (DCA). Results Seven radiomics features were selected for building the R_model. The AUCs of the C_model in training and test sets were 0.744 (95% confidence interval [CI], 0.595–0.874) and 0.750 (95% CI, 0.577–0.904), respectively. The R_model yielded AUCs of 0.813 (95% CI, 0.685–0.916) and 0.869 (95% CI, 0.715–0.985) in the training and test sets, respectively. The RC_model demonstrated the largest AUCs of 0.889 (95% CI, 0.794–0.963) and 0.892 (95% CI, 0.758–0.992) in the training and test sets, respectively. DCA demonstrated that RC_model added more net benefits than either the C_model or the R_model for predicting recurrence in high-risk pediatric neuroblastoma. Conclusions The combined model performed well for predicting recurrence in high-risk pediatric neuroblastoma, which can facilitate disease follow-up and management in clinical practice.
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Ren Q, Zhang D, Zhou G. DFT studies on the mechanisms of nickel-catalyzed reductive-coupling cyanation of aryl bromide. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122368] [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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Kwon K, Pan J, Guo Y, Ren Q, Yang Z, Tao J, Ji F. Demirjian method and Willems method to study the dental age of adolescents in Shanghai before and after 10 years. Folia Morphol (Warsz) 2022; 82:346-358. [PMID: 35285510 DOI: 10.5603/fm.a2022.0025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/23/2022] [Accepted: 02/23/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND The aim of this study is to assess the validity of whether the difference in dental age between 2009 to 2011 and 2021 is affected by environmental factors such as environmental pollution, floating population, and dietary habits. Demirjian and Willems dental age estimation methods were conducted for a Han population of children aged 8 to 14 in Shanghai, China. A total of 1,259 digital panorama radiographs of children aged 8.00-14.99 was estimated. All digital panorama radiographs were estimated using the Demirjian and Willems methods. MATERIALS AND METHODS Both 2009 to 2011 and 2021 were statistically analyzed by paired t-tests. The results show that the Demirjian method overestimates 2009 to 2011 and underestimates 2021 than children's chronological age. According to the Willms method, males are overestimated and females are underestimated from 2009 to 2011, and both genders were underestimated in 2021. CONCLUSIONS In conclusion, the difference in dental age between 2009 to 2011 and 2021 was statistically significant. Factors such as environment and dietary habits have been found to be affected by dental development. However, there are disputes among some researchers about the exact factors, so it is suggested to further study the effects of environmental factors on tooth development.
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Affiliation(s)
- K Kwon
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Pan
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Guo
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Ren
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Z Yang
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Tao
- Department of General Dentistry, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - F Ji
- Department of Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Mou W, Yang S, Guo R, Fu L, Zhang L, Guo W, Du J, He J, Ren Q, Hao C, Gui J, Huang J. A Novel Homozygous TTC7A Missense Mutation Results in Familial Multiple Intestinal Atresia and Combined Immunodeficiency. Front Immunol 2022; 12:759308. [PMID: 34975848 PMCID: PMC8714664 DOI: 10.3389/fimmu.2021.759308] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 11/15/2021] [Indexed: 11/20/2022] Open
Abstract
Rare autosomal-recessive variants in tetratricopeptide repeat domain 7A (TTC7A) gene have been shown to cause intestinal and immune disorders of variable severity. Missense mutations in TTC7A gene, usually retaining most of the functional motifs, is associated with relative milder clinical presentations. In this study, we reported a patient who was suffering from severe multiple intestinal atresia (MIA) with combined immunodeficiency (CID) that led to the pyloric diaphragm, ileum atresia, colon stenosis, and multiple episodes of sepsis. In spite of several surgeries and supportive treatment, the patient died of severe sepsis and multiple organ failure at age of 3 months. The whole exome sequencing (WES) of peripheral blood samples identified a novel homozygous TTC7A missense mutation (c. 206T>C, p. L69P), inherited from his parents with consanguineous marriage. In silico analysis revealed that a hydrogen bond present between Gly65 and Leu69 in the wild-type TTC7A was disrupted by the Leu69Pro mutation. Moreover, this homozygous missense mutation led to a reduced TTC7A expression in lymphocytes and intestinal tissues, accompanied by impeded lymphocyte development. Further studies demonstrated that the PI4K-FAM126A-EFR3A pathway was impaired in colon tissues. Our data strongly support the linkage of severe MIA-CID with the missense mutation in TTC7A gene. More knowledge of the TTC7A protein functions will have important therapeutic implications for patients with MIA-CID.
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Affiliation(s)
- Wenjun Mou
- Laboratory of Tumor Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Shen Yang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Ruolan Guo
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute; Ministry Of Education (MOE) Key Laboratory of Major Diseases in Children; Genetics and Birth Defects Control Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Libing Fu
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Li Zhang
- Key Laboratory of Advanced Theory and Application in Statistics and Data Science-Ministry Of Education (MOE), School of Statistics, East China Normal University, Shanghai, China
| | - Weihong Guo
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jingbin Du
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jianxin He
- Department of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Qinghua Ren
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Chanjuan Hao
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute; Ministry Of Education (MOE) Key Laboratory of Major Diseases in Children; Genetics and Birth Defects Control Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jingang Gui
- Laboratory of Tumor Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jinshi Huang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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Ren Q, Zhou Y, Yan M, Zheng C, Zhou G, Xia X. Imaging-guided percutaneous transthoracic needle biopsy of nodules in the lung base: fluoroscopy CT versus cone-beam CT. Clin Radiol 2022; 77:e394-e399. [DOI: 10.1016/j.crad.2022.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 02/02/2022] [Indexed: 01/08/2023]
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Affiliation(s)
- Lin Zheng
- Department of Chemistry, Innovative Drug Research Center Shanghai University Shanghai China
| | - Zhengwei Yan
- Department of Chemistry, Innovative Drug Research Center Shanghai University Shanghai China
| | - Qinghua Ren
- Department of Chemistry, Innovative Drug Research Center Shanghai University Shanghai China
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Ren Q, Zhang D, Zheng L. DFT studies on the mechanisms of enantioselective Ni-catalyzed reductive coupling reactions to form 1,1-diarylalkanes. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.122042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Ren Q, Huang PY, Liu Y, Liao WK, Zhou ZX, Zhao CS. SYNTHESIS, CRYSTAL STRUCTURE, AND DFT STUDY OF 4-(2-CHLOROBENZYL)-1-(5-NITRO-2-(PYRROLIDIN-1-YL)PHENYL)- [1,2,4]TRIAZOLO[4,3-a]QUINAZOLIN-5(4H)-ONE. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621090171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Meng D, Chang X, Ren Q, Xu J, Wang H. Congenital Bilateral Wilms Tumor: A Case Report. Urology 2021; 157:242-245. [PMID: 34450174 DOI: 10.1016/j.urology.2021.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 08/03/2021] [Accepted: 08/11/2021] [Indexed: 10/20/2022]
Abstract
Compare to congenital mesoblastic nephroma in fetus, congenital wilms tumor is extremely rare. Herein we report a case of congenital bilateral solid masses on antenatal ultrasound. The mass was evaluated by ultrasonography and contrast computed tomography scan in postnatal period, and the patient was undergoing tumor enucleation separately in short period after neoadjuvant chemotherapy. The diagnosis was confirmed by histology analysis for each side, and the treatment was taken according to the International Society of Pediatric Oncology.
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Affiliation(s)
- Deguang Meng
- Baoding Children's Hospital, Baoding, Hebei, PR China
| | - Xiaofeng Chang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, PR China
| | - Qinghua Ren
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, PR China
| | - Jiatong Xu
- Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, PR China
| | - Huanmin Wang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, PR China.
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Liu Y, Zheng Z, Deng H, Ren Q, Zhou Z, Zhao C, Chai H. SYNTHESIS AND CHARACTERIZATION OF A NEW COMPOUND 4-(2-CHLOROBENZYL)IMIDAZO[1,2-a] QUINAZOLIN-5(4H)-ONE: DFT STUDY, CRYSTAL STRUCTURE, MEP, AND HOMO–LUMO VALUES. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621080163] [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: 11/23/2022]
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Zhao X, Chen L, Ren Q, Wu Z, Fang S, Jiang Y, Chen Y, Zhong Y, Wang D, Wu J, Zhang G. Potential Applications in Sewage Bioremediation of the Highly Efficient Pyridine-Transforming Paenochrobactrum sp. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821030145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Li SM, Wang YA, Liu W, Wu ZY, Chen L, Cai XL, Zhang R, Yang WJ, Liu Y, Ma YM, Gong SQ, Zhang SM, Ren Q, Han XY, Ji LN. [Urinary retinol binding protein and β 2-microglobulin were associated with urinary albumin to creatinine ratio and renal function in hospitalized diabetic patients]. Zhonghua Nei Ke Za Zhi 2021; 60:438-445. [PMID: 33906273 DOI: 10.3760/cma.j.cn112138-20200515-00483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the associations of urinary retinol binding protein (RBP) and β2-microglobulin (β2-MG) with urinary albumin to creatinine ratio (UACR) and renal function in hospitalized patients with type 2 diabetes mellitus (T2DM). Methods: A total of 1 030 Chinese patients with T2DM were included in this study. The subjects were divided into the UACR normal group (<30 mg/g), microalbuminuria group (30-300 mg/g) and macroalbuminuria group (>300 mg/g). Patients with normal UACR were further divided into two groups according to the estimated glomerular filtration rate (eGFR): the eGFR low group (<90 ml·min-1·1.73m-2) and the normal eGFR group (≥90 ml·min-1·1.73m-2). Urine RBP and β2-MG levels among the groups were compared. Multiple linear regression analyses were applied to evaluate risk factors of urine RBP and β2-MG. Results: In all patients (n=1 030), urine RBP and β2-MG increased gradually with the increase of UACR across the three groups, the proportions of abnormal urine RBP (>0.7 mg/L) and β2-MG (>370 μg/L) in these groups were 3.8%, 8.5%, 39.0% (P<0.001), and 12.9%, 26.7%, 46.8% (P<0.001), respectively. In the UACR normal group (n=788), 12.2% of the patients were with eGFR<90 ml·min-1·1.73m-2. The proportion of abnormal β2-MG (>370 μg/L) was higher in the eGFR low group than that in the eGFR normal group (29.2% vs. 10.7%, P<0.001). Multivariate linear stepwise regression analyses were performed using natural logarithm of urine RBP or β2-MG as dependent variable, and showed that urine RBP was independently associated with UACR (β=0.0005, P<0.001), serum creatinine (β=0.006, P<0.001) and glycosylated hemoglobin A1c (β=0.050, P=0.001), and β2-MG was independently correlated with UACR (β=0.000 4, P<0.001), serum creatinine (β=0.011, P<0.001), systolic blood pressure (β=0.005, P=0.031) and fasting blood-glucose (β=0.027, P=0.046). Conclusions: Urine RBP and β2-MG are positively associated with high UACR and impaired renal function in T2DM patients, and these changes could occur before UACR and eGFR turned out to be abnormal. It is recommended that urine RBP and β2-MG be detected as early as possible to identify diabetic kidney disease in patients with normal UACR and eGFR.
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Affiliation(s)
- S M Li
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - Y A Wang
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - W Liu
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - Z Y Wu
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - L Chen
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - X L Cai
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - R Zhang
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - W J Yang
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - Y Liu
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - Y M Ma
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - S Q Gong
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - S M Zhang
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - Q Ren
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - X Y Han
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
| | - L N Ji
- Departments of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing 100044, China
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Ren Q, Wang XJ, Zhao YQ, Xu LQ, Yu HW, Ma AJ, Zheng WG. Thermo-Responsive Shape Memory Behavior of Methyl Vinyl Silicone Rubber/Olefin Block Copolymer Blends via Co-Crosslinking. INT POLYM PROC 2021. [DOI: 10.1515/ipp-2020-3927] [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: 11/15/2022]
Abstract
Abstract
Shape memory polymers (SMPs) are developed by blending and cross-linking polymers which include crystalline domains and cross-linked networks. In this paper, we describe the morphology, thermal and shape memory behavior of methyl vinyl silicone rubber (MVMQ)/olefin block copolymer (OBC) blends prepared by a melt-blending and chemical cross-linking method. MVMQ without crystalline domains could not hold its temporary shape. After introducing the OBC, the obtained blends exhibited excellent dual shape memory properties. The cross-linking networks of MVMQ acted as reversible domains, while crystalline regions of OBC worked as fixed domains. When the blending ratio of MVMQ/OBC was 50/ 50, the blend had both a high shape fixity ratio and shape recovery ratio.
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Affiliation(s)
- Q. Ren
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo , PRC
- University of Chinese Academy of Sciences , Beijing , PRC
| | - X. J. Wang
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo , PRC
- School of Materials Science and Chemical Engineering, Xi’an Technological University , Xi’an , PRC
| | - Y. Q. Zhao
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo , PRC
| | - L. Q. Xu
- School of Material Science and Chemical Engineering, Ningbo University , Ningbo , PRC
| | - H. W. Yu
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo , PRC
| | - A. J. Ma
- School of Materials Science and Chemical Engineering, Xi’an Technological University , Xi’an , PRC
| | - W. G. Zheng
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences , Ningbo , PRC
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Jiao JL, Zhang HP, Huang Q, Wang W, Sinclair R, Wang G, Ren Q, Lin GT, Huq A, Zhou HD, Li MZ, Ma J. Orbital competition of Mn 3+ and V 3+ ions in Mn 1+x V 2-x O 4. J Phys Condens Matter 2021; 33:134002. [PMID: 33527912 DOI: 10.1088/1361-648x/abd9a1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The structural and magnetic properties of Mn1+x V2-x O4 (0 < x ⩽ 1) have been investigated by the heat capacity, magnetization, x-ray diffraction and neutron diffraction measurements, and a phase diagram of temperature versus composition was built up. For x ⩽ 0.3, a cubic-to-tetragonal (c > a) phase transition was observed. For x > 0.3, the system maintained the tetragonal lattice. Although the collinear and noncollinear magnetic transitions of V3+ ions were obtained in all compositions, the canting angles between the V3+ ions decreased with Mn3+-doping, and the ordering of the Mn3+ ions was only observed as x > 0.4. In order to study the dynamics of the ground state, the first principles simulation was applied to analyze not only the orbital effects of Mn2+, Mn3+, and V3+ ions, but also the related exchange energies.
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Affiliation(s)
- J L Jiao
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Shenyang National Laboratory for Materials Science, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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Abstract
The mechanism studies of transition-metal-catalyzed reductive coupling reactions
investigated using Density Functional Theory calculations in the recent ten years have been
reviewed. This review introduces the computational mechanism studies of Ni-, Pd-, Cu- and
some other metals (Rh, Ti and Zr)-catalyzed reductive coupling reactions and presents the
methodology used in these computational mechanism studies. The mechanisms of the transition-
metal-catalyzed reductive coupling reactions normally include three main steps: oxidative
addition; transmetalation; and reductive elimination or four main steps: the first oxidative
addition; reduction; the second oxidative addition; and reductive elimination. The ratelimiting
step is most likely the final reductive elimination step in the whole mechanism.
Currently, the B3LYP method used in DFT calculations is the most popular choice in the structural geometry
optimizations and the M06 method is often used to carry out single-point calculations to refine the energy values.
We hope that this review will stimulate more and more experimental and computational combinations and the
computational chemistry will significantly contribute to the development of future organic synthesis reactions.
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Affiliation(s)
- Yuling Wang
- Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Qinghua Ren
- Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, China
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Cheng H, Yang S, Ren Q, Yang W, Han W, Chang X, Zhu Z, Qin H, Wang H. Pancreatectomies for pediatric pancreatic tumors: A single institute experience from 2007 to 2018. J Pediatr Surg 2020; 55:1722-1726. [PMID: 31575410 DOI: 10.1016/j.jpedsurg.2019.08.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/18/2019] [Accepted: 08/31/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND To investigate the safety, feasibility, and complications of pancreatectomies for pediatric pancreatic tumors. METHODS The medical records of pancreatectomy patients from January 2007 to January 2018 were retrospectively analyzed for perioperative factors and complications. Patients were divided into pancreatic head (n = 43), body (n = 18) and tail (n = 43) groups. RESULTS Seventy-two girls and 32 boys (median age 10 years at diagnosis, range: 0-15 years) were enrolled and had solid pseudopapillary tumors (n = 73), pancreatoblastoma (n = 19), neuroendocrine tumors (n = 9), and others. Primary surgical procedures included pylorus-preserving pancreaticoduodenectomy (n = 10) and distal pancreatectomy with splenectomy (n = 4), and organ-sparing resection procedures included duodenum-preserving pancreas head resection (n = 25), middle segmental pancreatic resection (n = 15), spleen-preserving distal pancreatectomy (n = 37) and local enucleation (n = 13), with a median blood loss of 20 cm3 (range: 10-300 cm3). Short-term complications included pancreatic fistula (35.6%), bile leakage (2.9%), intraabdominal infection (21.2%), delayed gastric emptying (23.1%), and postpancreatectomy hemorrhage (5.8%). After a median follow-up of 38 months (range: 3-143 months), 94 patients (90.4%) were alive without tumor recurrence, 2 were alive after tumor recurrence, 1 pancreatoblastoma patient died from tumor recurrence, and 7 were lost to follow-up. Only 14 patients (14/96, 14.6%) had long-term complications at the outpatient follow-up. CONCLUSIONS Surgical resection was the main treatment for pancreatic tumors. Organ-sparing resection procedures led to good long-term results for pediatric pancreatic tumors, even if these procedures could cause a relatively high incidence of short-term complications (especially pancreatic fistula and postpancreatectomy hemorrhage). LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Haiyan Cheng
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Shen Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Qinghua Ren
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Wei Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Wei Han
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Xiaofeng Chang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Zhiyun Zhu
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Hong Qin
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China.
| | - Huanmin Wang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China.
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Ding X, Yang W, Ren Q, Hu J, Yang S, Han W, Wang J, Wang X, Wang H. Serum IgG-induced microglial activation enhances neuronal cytolysis via the NO/sGC/PKG pathway in children with opsoclonus-myoclonus syndrome and neuroblastoma. J Neuroinflammation 2020; 17:190. [PMID: 32546235 PMCID: PMC7298801 DOI: 10.1186/s12974-020-01839-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/11/2020] [Indexed: 12/14/2022] Open
Abstract
Background Opsoclonus-myoclonus syndrome (OMS) is a rare neurological disease. Some children with OMS also have neuroblastoma (NB). We and others have previously documented that serum IgG from children with OMS and NB induces neuronal cytolysis and activates several signaling pathways. However, the mechanisms underlying OMS remain unclear. Here, we investigated whether nitric oxide (NO) from activated microglias and its cascade contribute to neuronal cytolysis in pediatric OMS. Methods The activation of cultured cerebral cortical and cerebellar microglias incubated with sera or IgG isolated from sera of children with OMS and NB was measured by the expression of the activation marker, cytokines, and NO. Neuronal cytolysis was determined after exposing to IgG-treated microglia-conditioned media. Using inhibitors and activators, the effects of NO synthesis and its intracellular cascade, namely soluble guanylyl cyclase (sGC) and protein kinase G (PKG), on neuronal cytolysis were evaluated. Results Incubation with sera or IgG from children with OMS and NB increased the activation of cerebral cortical and cerebellar microglias, but not the activation of astrocytes or the cytolysis of glial cells. Moreover, the cytolysis of neurons was elevated by conditioned media from microglias incubated with IgG from children with OMS and NB. Furthermore, the expression of NO, sGC, and PKG was increased. Neuronal cytolysis was relieved by the inhibitors of NO signaling, while neuronal cytolysis was exacerbated by the activators of NO signaling but not proinflammatory cytokines. The cytolysis of neurons was suppressed by pretreatment with the microglial inhibitor minocycline, a clinically tested drug. Finally, increased microglial activation did not depend on the Fab fragment of serum IgG. Conclusions Serum IgG from children with OMS and NB potentiates microglial activation, which induces neuronal cytolysis through the NO/sGC/PKG pathway, suggesting an applicability of microglial inhibitor as a therapeutic candidate.
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Affiliation(s)
- Xu Ding
- Laboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nan-li-shi Road, Xi-Cheng District, Beijing, 100045, China.
| | - Wei Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Qinghua Ren
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jiajian Hu
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Shen Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Wei Han
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jing Wang
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, 100069, China
| | - Xu Wang
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Huanmin Wang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
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Li W, Ren Q, Wang Y, Zheng X. Design of varying frequency three-phase synchronization signal processing system for HL-2M tokamak phase-controlled power supply. Fusion Engineering and Design 2020. [DOI: 10.1016/j.fusengdes.2020.111519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Qin H, Yang S, Cai S, Ren Q, Han W, Yang W, Cheng H, Ma X, Wang H. Clinical characteristics and risk factors of 47 cases with ruptured neuroblastoma in children. BMC Cancer 2020; 20:243. [PMID: 32293329 PMCID: PMC7092550 DOI: 10.1186/s12885-020-06720-9] [Citation(s) in RCA: 11] [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: 10/16/2019] [Accepted: 03/06/2020] [Indexed: 12/15/2022] Open
Abstract
Background Neuroblastoma (NB) tumor rupture is a rare oncology emergency with a poor prognosis. We aimed to evaluate patient clinical characteristics and risk factors for ruptured NB. Methods A retrospective study of 47 patients with confirmed NB rupture between January 2009 and January 2019 at Beijing Children’s Hospital was conducted. To identify tumor rupture risk factors in high-risk NB patients, we included 93 consecutive non-ruptured high-risk NB patients from January 2017 to January 2019. Results The median age at presentation was 29 months (adrenal and retroperitoneum origin) for 47 ruptured NB patients. Spontaneous tumor rupture occurred in 22 cases; 18 cases occurred during or after the first chemotherapy cycle, and 7 occurred after core needle biopsy. Five patients died of tumor rupture, and 17 patients’ parents refused further antitumor therapy. Among the 25 remaining patients, 6 survived without disease, 5 received ongoing treatment and achieved stable disease, and 14 died. According to multivariate logistic regression analysis, a maximum primary tumor diameter > 13.20 cm and MYCN gene amplification were independent risk factors for tumor rupture within high-risk NB. Conclusions Tumor rupture is an uncommon, life-threatening event for NB patients; these patients are most likely to have poor outcomes due to tumor recurrence or rapid progression. Several treatment modalities, including symptomatic support therapy and chemotherapy, are important for saving lives and for developing NB risk-based treatment in the future.
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Affiliation(s)
- Hong Qin
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Shen Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Siyu Cai
- Center for Clinical Epidemiology & Evidence-Based Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Qinghua Ren
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Wei Han
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Wei Yang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Haiyan Cheng
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China
| | - Xiaoli Ma
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China.
| | - Huanmin Wang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nanlishi Road, Beijing, 100045, China.
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Sun ZB, Li SD, Ren Q, Xu JL, Lu X, Sun MH. Biology and applications of Clonostachys rosea. J Appl Microbiol 2020; 129:486-495. [PMID: 32115828 DOI: 10.1111/jam.14625] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [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: 09/21/2019] [Revised: 02/24/2020] [Accepted: 02/26/2020] [Indexed: 01/07/2023]
Abstract
Clonostachys rosea is a promising saprophytic filamentous fungus that belongs to phylum Ascomycota. Clonostachys rosea is widespread around the world and exists in many kinds of habitats, with the highest frequency in soil. As an excellent mycoparasite, C. rosea exhibits strong biological control ability against numerous fungal plant pathogens, nematodes and insects. These behaviours are based on the activation of multiple mechanisms such as secreted cell-wall-degrading enzymes, production of antifungal secondary metabolites and induction of plant defence systems. Besides having significant biocontrol activity, C. rosea also functions in the biodegradation of plastic waste, biotransformation of bioactive compounds, as a bioenergy sources and in fermentation. This mini review summarizes information about the biology and various applications of C. rosea and expands on its possible uses.
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Affiliation(s)
- Z-B Sun
- School of Light Industry, Beijing Technology and Business University, Beijing, China.,Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - S-D Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Q Ren
- School of Light Industry, Beijing Technology and Business University, Beijing, China
| | - J-L Xu
- School of Light Industry, Beijing Technology and Business University, Beijing, China
| | - X Lu
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - M-H Sun
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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32
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Ren Q, Zhang CY, Ma XF, Cheng RZ, Bian XY, Xiao XL, Liu XZ, Zhou HF. [Spectomycin B1 induces VEGFR2 de-SUMO modification to inhibit angiogenesis in nasopharyngeal carcinoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 33:1181-1184. [PMID: 31914270 DOI: 10.13201/j.issn.1001-1781.2019.12.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Indexed: 11/12/2022]
Abstract
Objective:To explore the new mechanism of spectomycin B1 in inhibiting angiogenesis of nasopharyngeal carcinoma and to provide a theoretical basis for targeted gene therapy of nasopharyngeal carcinoma. Method:Human nasopharyngeal carcinoma CNE1 cells were divided into two groups, the control group and spectomycin B1 group. Western blot was used to detect the expression levels of small ubiquitin-related modified protein(SUMO) 1 and vascular endothelial growth factor receptor 2(VEGFR2). The angiogenesis assay was used to detect the angiogenic ability of CNE1 cells, and the apoptosis was detected by flow cytometry. The model of nasopharyngeal carcinoma-bearing mice was established, spectomycin B1 was administered, tumor volume and weight were measured, and protein expression of CD31 was detected by immunohistochemistry and microvessel density was compared. Result:Spectomycin B1 could reduce deSUMOylation of VEGFR2 protein by 4.05 times, significantly reduce the angiogenic ability of CNE1 cells, and increase the apoptosis rate by 20.68%. In the tumor-bearing mouse model, spectomycin B1 treatment could inhibit subcutaneous tumor growth rate and weight, and the blood vessel density decreased by 40.04%. Conclusion:Spectomycin B1 can inhibit neovascularization of nasopharyngeal carcinoma by inducing deSUMOylation of VEGFR2 protein.
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Affiliation(s)
- Q Ren
- Department of Otorhinolaryngology,the Fifth Central Hospital of Tianjin,Tianjin,300450,China
| | - C Y Zhang
- Department of Pharmacy,Tianjin Binhai New Area Hospital of Traditional Chinese Medicine
| | - X F Ma
- Central Laboratory,the Fifth Central Hospital of Tianjin
| | - R Z Cheng
- Department of Pharmacy,Tianjin Binhai New Area Hospital of Traditional Chinese Medicine
| | - X Y Bian
- Central Laboratory,the Fifth Central Hospital of Tianjin
| | - X L Xiao
- Central Laboratory,the Fifth Central Hospital of Tianjin
| | - X Z Liu
- Central Laboratory,the Fifth Central Hospital of Tianjin
| | - H F Zhou
- Department of Otorhinolaryngology,Tianjin Medical University General Hospital
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Gao Y, Shi L, Li S, Ren Q. Mechanistic insights into higher alcohol synthesis from syngas on Rh/Cu single-atom alloy catalysts. Phys Chem Chem Phys 2020; 22:5070-5077. [DOI: 10.1039/c9cp06379j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations show that C–C coupling is more favored on Rh/Cu single-atom alloy catalysts than on pure metal catalysts.
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Affiliation(s)
- Yihao Gao
- Department of Chemistry
- College of Sciences
- Shanghai University
- Shanghai 200444
- China
| | - Lei Shi
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering
- Shanghai Advanced Research Institute
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Shenggang Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering
- Shanghai Advanced Research Institute
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Qinghua Ren
- Department of Chemistry
- College of Sciences
- Shanghai University
- Shanghai 200444
- China
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Ren Q, Lin P, Wang Q, Zhang B, Feng L. Chronic peripheral ghrelin injection exerts antifibrotic effects by increasing growth differentiation factor 15 in rat hearts with myocardial fibrosis induced by isoproterenol. Physiol Res 2019; 69:439-450. [PMID: 31852204 DOI: 10.33549/physiolres.934183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
This study aimed to investigate the anti-fibrotic effects of ghrelin in isoproterenol (ISO)-induced myocardial fibrosis and the underlying mechanism. Sprague-Dawley rats were randomized to control, ISO, and ISO + ghrelin groups. ISO (2 mg/kg per day, subcutaneous) or vehicle was administered once daily for 7 days, then ghrelin (100 microg/kg per day, subcutaneous) was administered once daily for the next 3 weeks. Ghrelin treatment greatly improved the cardiac function of ISO-treated rats. Ghrelin also decreased plasma brain natriuretic peptide level and ratios of heart weight to body weight and left ventricular weight to body weight. Ghrelin significantly reduced myocardial collagen area and hydroxyproline content, accompanied by decreased mRNA levels of collagen type I and III. Furthermore, ghrelin increased plasma level of growth differentiation factor 15 (GDF15) and GDF15 mRNA and protein levels in heart tissues, which were significantly decreased with ISO alone. The phosphorylation of Akt at Ser473 and GSK-3beta at Ser9 was decreased with ISO, and ghrelin significantly reversed the downregulation of p-Akt and p-GSK-3beta. Mediated by GDF15, ghrelin could attenuate ISO-induced myocardial fibrosis via Akt-GSK-3beta signaling.
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Affiliation(s)
- Q Ren
- Geriatric Department of the Third Hospital of Hangzhou, Hangzhou, China.
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Yang B, Chen H, Gao H, Ren Q, Zhang H, Chen W. Genetic determinates for conjugated linolenic acid production in Lactobacillus plantarum ZS2058. J Appl Microbiol 2019; 128:191-201. [PMID: 31561280 DOI: 10.1111/jam.14466] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 02/20/2019] [Revised: 08/28/2019] [Accepted: 09/23/2019] [Indexed: 12/17/2022]
Abstract
AIMS To investigate the genetic determinates for conjugated linolenic acid (CLNA) production in Lactobacillus plantarum ZS2058, a high CLNA producer. METHODS AND RESULTS After culturing with α-linolenic acid (ALA) in the medium, the fatty acid compositions of supernatant fluid and cell pellets were analysed via GC-MS. cis9,trans11,cis15-CLNA was identified to be the predominant isomer. And during CLNA production, 10-hydroxy-cis12-cis15-octadecenoic acid (10-HOEA) and 10-oxo-cis12-cis15-octadecenoic acid (10-OXOA) were accumulated. The E. coli recombinants harbouring genes encoding myosin-cross-reactive antigen (MCRA), short-chain dehydrogenase/oxidoreductase (DH) and acetoacetate decarboxylase (DC), respectively, were analysed for their roles in CLNA production. The results indicated that MCRA converted ALA to 10-HOEA, following converted to 10-OXOA by DH. While with the combination of three recombinants, ALA could be transformed into CLNA plus 10-HOEA and 10-OXOA. When the three genes were deleted, none of the L. plantarum ZS2058 knockout mutants could produce any CLNA, after complementation, and all the complementary mutants recovered the CLNA-production ability at similar levels as the wild strain. CONCLUSIONS Lactobacillus plantarum ZS2058 produced CLNA from ALA with 10-HOEA and 10-OXOA as intermediates. The triple-component isomerase of MCRA, DH and DC was the unique genetic determinant for CLNA generation. SIGNIFICANCE AND IMPACT OF THE STUDY The current results firstly provided conclusive evidence that the triple-component isomerase complex was shared by both CLA and CLNA production in lactobacilli.
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Affiliation(s)
- B Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - H Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - H Gao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Q Ren
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - H Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China.,Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, Jiangsu, China
| | - W Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China.,Beijing Innovation Center of Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, China
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Ren Q, Xie H, Chen Y, Wu C, Li H, Lu Y, Lin N, Li X, Yuan W, Yang Y, Jin H, Sun J. OR68: Effects of a Micronutrient Pack on Micronutrient Status, Homocysteine Level, Oxidative Stress Biomarkers and Functions in Institutional Older Adults: A Multicenter Randomized, Double-Blind, Placebo-Controlled Study. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32540-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Ren Q, An S, Wang Y, Tong W. Density Functional Theory Study of the Mechanisms of Iron‐Catalyzed Regioselective Anti‐Markovnikov Addition of C‐H Bonds in Aromatic Ketones to Alkenes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Qinghua Ren
- Department of ChemistryShanghai University 99 Shangda Road Shanghai 200444 China
| | - Shanshan An
- Department of ChemistryShanghai University 99 Shangda Road Shanghai 200444 China
| | - Yuling Wang
- Department of ChemistryShanghai University 99 Shangda Road Shanghai 200444 China
| | - Weiqi Tong
- Department of ChemistryShanghai University 99 Shangda Road Shanghai 200444 China
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Abstract
1. MicroRNAs are small noncoding RNA molecules that play crucial roles in gene expression. However, the comparative profiling of testicular and ovarian microRNAs in birds are rarely reported, particularly in pigeon.2. In this study, Illumina next-generation sequencing technology was used to sequence miRNA libraries of the gonads from six healthy adult utility pigeons. A total of 344 conserved known miRNAs and 32 novel putative miRNAs candidates were detected. Compared with those of ovaries, 130 differentially expressed (DE) miRNAs were identified in the testes. Among them, 70 miRNAs showed down-regulation in the ovaries, while another 60 miRNAs were up-regulated.3. Combining the results of the expression of target gene measurements and pathway enrichment analyses, it was revealed that some DEmiRNAs from the gonad samples involved in sexual differentiation and development (such as cli-miR-210-3p and cli-miR-214-3p) could down-regulate AR (androgen receptor). Cli-miR-181b-5p, cli-miR-9622-3p and cli-miR-145-5p were highly expressed in both the ovaries and testes, which could co-target HOXC9, and were related to regulation of primary metabolic processes. KEGG enrichment analysis showed that DEmiRNAs may play biological and sex-related roles in pigeon gonads.4. The expression profiles of testicular and ovarian miRNA in adult pigeon gonads are presented for the first time, and the findings may contribute to a better understanding of gonadal expression in poultry.
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Affiliation(s)
- L Jiang
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu, China.,The Provincial Key Laboratory of the Conservation and Exploitation Research of Biological Resources in Anhui, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - D Bi
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - H Ding
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Q Ren
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu, China.,State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - P Wang
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - X Kan
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu, China.,The Provincial Key Laboratory of the Conservation and Exploitation Research of Biological Resources in Anhui, College of Life Sciences, Anhui Normal University, Wuhu, China
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Ren Q, Liu FT, Zhang CY, Li LL, Cheng RZ, Liu XZ, Liu Q, Zhou HF. [Hypoxia increases chemotherapy resistance in nasopharyngeal carcinoma via inducing CDK6 deSUMOylation]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:524-528. [PMID: 31315360 DOI: 10.3760/cma.j.issn.1673-0860.2019.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 understand the mechanism of chemotherapy resistance in nasopharyngeal carcinoma under hypoxic conditions through the perspective of protein SUMOylation modification. Methods: Cobalt chloride (CoCl(2)) was used to establish the hypoxic model of human nasopharyngeal carcinoma CNE1 cells. Then, the cell cycle was detected by flow cytometry, and the expression level of small ubiquitin-related modifier(SUMO) and cyclin-dependent kinase 6 (CDK6) proteins were detected by western blotting. MTT assay was used to determine the median lethal dose (IC(50)) of cancer cells against cisplatin, and enzyme-linked immunosorbent assay (ELISA) was used to determine lactate dehydrogenase (LDH) level. Results: The cell cycle of CNE1 induced by hypoxia was arrested in G0/G1 phase.The results of Western blot showed that the protein expression level of CDK6 in CNE1 cells was lower than that in the control group (0.83±0.25 vs. 0.43±0.21, t=14.67, P=0.003). The protein level of conjugated SUMO1 was significantly lower than that in the control group (2.69±0.48 vs. 1.38±0.31, t=17.22, P=0.001), while the level of free SUMO1 protein was significantly higher than that in the control group (2.01±0.43 vs. 2.60±0.59, t=15.45, P=0.002).The LC50 of CNE1 cells in the control group was significantly lower than that in the hypoxic group (29.44 μg/ml vs. 97.72 μg/ml, t=12.79, P=0.001). After CNE1 cells received 50 μg/ml cisplatin for 48 h, the LDH content in the supernatant of the control group was significantly higher than that in the hypoxic group ((541.49±64.59) ng/ml vs. (234.67±41.03) ng/ml, t=11.94, P=0.007)). The apoptosis rate of CNE1 cells in the control group was significantly higher than that in the hypoxic group ((76.64±5.37)% vs. (32.84±4.77) ng/ml, t=8.49, P=0.003)). Conclusion: Hypoxia can dissociate the covalent modification of CDK6 and SUMO1, inhibit cell cycle and increase the chemotherapy resistance of nasopharyngeal carcinoma.
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Affiliation(s)
- Q Ren
- Department of Otorhniolaryngology, the Fifth Central Hospital of Tianjin, Tianjin 300450, China
| | - F T Liu
- Clinical Medical College of Tianjin Medical University, Tianjin 300070, China
| | - C Y Zhang
- Department of Pharmacy, Tianjin Binhai New Area Hospital of Traditional Chinese Medicine, Tianjin 300450, China
| | - L L Li
- Department of Bone and Soft Tissue Oncology, Tianjin Medical University Cancer Hospital, Tianjin 300060, China
| | - R Z Cheng
- Department of Pharmacy, Tianjin Binhai New Area Hospital of Traditional Chinese Medicine, Tianjin 300450, China
| | - X Z Liu
- Central Laboratory, the Fifth Central Hospital of Tianjin, Tianjin 300450, China
| | - Q Liu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - H F Zhou
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin 300070, China
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Lin T, Peng C, Liu S, Huang H, Wang Z, Guo C, Ren Q, Fang X, Hong H, Li F, Ying Tian Y. A PROSPECTIVE STUDY ON THE CIRCULATION AND CENTRAL NERVOUS SYSTEM AFTERPRIMARY CENTRAL NERVOUS SYSTEM B CELL LYMPHOMATREATMENT WITH RITUXIMAB. Hematol Oncol 2019. [DOI: 10.1002/hon.139_2631] [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: 11/10/2022]
Affiliation(s)
- T. Lin
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - C. Peng
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - S. Liu
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - H. Huang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - Z. Wang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - C. Guo
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - Q. Ren
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - X. Fang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - H. Hong
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - F. Li
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
| | - Y. Ying Tian
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, China; Guangzhou China
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Lin T, Ren Q, Huang H, Li X, Hong H, Wang Z, Fang X, Guo C, Li F, Zhang L, Yao Y, Chen Z, Huang Y, Li Z, Cai Q, Tian Y, Wang H, Lin X, Fan W, Zheng L, Lin S, Liu Q. A PROSPECTIVE STUDY OF MRI AND PET/CT-GUIDED THERAPY FOR IMPROVING SURVIVAL IN UPPER AERODIGESTIVE TRACT NATURAL KILLER/T-CELL LYMPHOMA, NASAL TYPE. Hematol Oncol 2019. [DOI: 10.1002/hon.85_2630] [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: 11/08/2022]
Affiliation(s)
- T. Lin
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - Q. Ren
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - H. Huang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - X. Li
- Department of Medical Oncology; The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China; Guangzhou China
| | - H. Hong
- Department of Medical Oncology; Sun Yat-sen Memorial Hospital; Guangzhou China
| | - Z. Wang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - X. Fang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - C. Guo
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - F. Li
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - L. Zhang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - Y. Yao
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - Z. Chen
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - Y. Huang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - Z. Li
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - Q. Cai
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - Y. Tian
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - H. Wang
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - X. Lin
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - W. Fan
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - L. Zheng
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - S. Lin
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
| | - Q. Liu
- Department of Medical Oncology; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in Southern China; Collaborative Innovation Center of Cancer Medicine; Guangzhou China
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Xing L, Wang J, Li L, Ma Z, Hu C, Zhang H, Shan L, Chen Z, Zhang J, Zhou Q, Gao S, Ma X, Sun P, Ren Q, Wu M, Wu J, Li J, Yao J, Ma H, Wang W, Yao W, Wang D, Kang J, Li G, Wang X, Zhu W, Wang J, Yu J. MA02.06 A Randomized, Double-Blind, Placebo-Controlled Trial of Chemotherapy Combined with Yangzheng Xiaoji in Advanced NSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Xie X, Yang Y, Ren Q, Ding X, Bao P, Yan B, Yan X, Han J, Yan P, Qiu Q. Accumulation of deleterious mutations in the domestic yak genome. Anim Genet 2018; 49:384-392. [DOI: 10.1111/age.12703] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2018] [Indexed: 12/19/2022]
Affiliation(s)
- X. Xie
- State Key Laboratory of Grassland Agro-Ecosystem; School of Life Sciences; Lanzhou University; Lanzhou 730000 China
| | - Y. Yang
- State Key Laboratory of Grassland Agro-Ecosystem; School of Life Sciences; Lanzhou University; Lanzhou 730000 China
| | - Q. Ren
- State Key Laboratory of Grassland Agro-Ecosystem; School of Life Sciences; Lanzhou University; Lanzhou 730000 China
| | - X. Ding
- Key Laboratory of Yak Breeding Engineering Gansu Province; Lanzhou Institute of Husbandry and Pharmaceutical Sciences; Chinese Academy of Agricultural Science; Lanzhou 730050 China
| | - P. Bao
- Key Laboratory of Yak Breeding Engineering Gansu Province; Lanzhou Institute of Husbandry and Pharmaceutical Sciences; Chinese Academy of Agricultural Science; Lanzhou 730050 China
| | - B. Yan
- State Key Laboratory of Grassland Agro-Ecosystem; School of Life Sciences; Lanzhou University; Lanzhou 730000 China
| | - X. Yan
- State Key Laboratory of Grassland Agro-Ecosystem; School of Life Sciences; Lanzhou University; Lanzhou 730000 China
| | - J. Han
- State Key Laboratory of Grassland Agro-Ecosystem; School of Life Sciences; Lanzhou University; Lanzhou 730000 China
| | - P. Yan
- Key Laboratory of Yak Breeding Engineering Gansu Province; Lanzhou Institute of Husbandry and Pharmaceutical Sciences; Chinese Academy of Agricultural Science; Lanzhou 730050 China
| | - Q. Qiu
- State Key Laboratory of Grassland Agro-Ecosystem; School of Life Sciences; Lanzhou University; Lanzhou 730000 China
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Cui W, Ren Q, Zhi YS, Zhao XL, Wu ZP, Li PG, Tang WH. Optimization of Growth Temperature of β-Ga₂O₃ Thin Films for Solar-Blind Photodetectors. J Nanosci Nanotechnol 2018; 18:3613-3618. [PMID: 29442874 DOI: 10.1166/jnn.2018.14692] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Monoclinic gallium oxide thin films were deposited on c-plane sapphire substrates at various substrate temperatures ranging from 450 °C to 700 °C by radio frequency magnetron sputtering technology. X-ray diffraction results showed that the deposited β-Ga2O3 films were oriented at ( 2 ¯ 01) direction. As the substrate temperature increased, the intensity of β-Ga2O3 peaks increased and bandgap decreased accordingly. Metal/semiconductor/metal structured solar-blind photodetectors based on β-Ga2O3 thin films growing at various substrate temperatures had been fabricated. The growth temperatures of thin films had no obvious influence on dark current and response to 365 nm light illuminations. The photoelectric properties such as responsivity and response speed of the thin films to 254 nm light illuminations were growth temperature dependent. At an applied bias of 50 V, the photodetectors prepared with 450 °C grown film had the highest responsivity of 2.18 A/W, and the photodetectors prepared with 700 °C grown film had the shortest rising time of 0.95 s under 254 nm light illuminations.
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Affiliation(s)
- W Cui
- Laboratory of Optoelectronics Materials and Devices, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Q Ren
- Laboratory of Optoelectronics Materials and Devices, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Y S Zhi
- Laboratory of Optoelectronics Materials and Devices, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - X L Zhao
- Laboratory of Optoelectronics Materials and Devices, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Z P Wu
- Laboratory of Optoelectronics Materials and Devices, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - P G Li
- Center for Optoelectronics Materials and Devices, Department of Physics, Zhejiang Sci-Tech University, Hangzhou, 310018 Zhejiang, China
| | - W H Tang
- Laboratory of Optoelectronics Materials and Devices, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
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Ren Q, Cai M, Zhang K, Ren W, Su Z, Yang T, Sun T, Wang J. Effects of bone morphogenetic protein-2 (BMP-2) and vascular endothelial growth factor (VEGF) release from polylactide-poly (ethylene glycol)-polylactide (PELA) microcapsule-based scaffolds on bone. ACTA ACUST UNITED AC 2017; 51:e6520. [PMID: 29211249 PMCID: PMC5711005 DOI: 10.1590/1414-431x20176520] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 08/31/2017] [Indexed: 01/11/2023]
Abstract
Multiple growth factors can be administered to mimic the natural process of bone healing in bone tissue engineering. We investigated the effects of sequential release of bone morphogenetic protein-2 (BMP-2) and vascular endothelial growth factor (VEGF) from polylactide-poly (ethylene glycol)-polylactide (PELA) microcapsule-based scaffolds on bone regeneration. To improve the double emulsion/solvent evaporation technique, VEGF was encapsulated in PELA microcapsules, to which BMP-2 was attached. The scaffold (BMP-2/PELA/VEGF) was then fused to these microcapsules using the dichloromethane vapor method. The bioactivity of the released BMP-2 and VEGF was then quantified in rat mesenchymal stem cells (rMSCs). Immunoblotting analysis showed that BMP-2/PELA/VEG promoted the differentiation of rMSCs into osteoblasts via the MAPK and Wnt pathways. Osteoblast differentiation was assessed through alkaline phosphatase expression. When compared with simple BMP-2 plus VEGF group and pure PELA group, osteoblast differentiation in BMP-2/PELA/VEGF group significantly increased. An MTT assay indicated that BMP-2-loaded PELA scaffolds had no adverse effects on cell activity. BMP-2/PELA/VEG promoted the differentiation of rMSCs into osteoblast via the ERK1/2 and Wnt pathways. Our findings indicate that the sequential release of BMP-2 and VEGF from PELA microcapsule-based scaffolds is a promising approach for the treatment of bone defects.
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Affiliation(s)
- Q Ren
- Emergency Department, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - M Cai
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, China
| | - K Zhang
- Emergency Department, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - W Ren
- Emergency Department, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Z Su
- Emergency Department, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - T Yang
- Emergency Department, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - T Sun
- Emergency Department, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - J Wang
- Department of Cardiothoracic Surgery, Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia, China
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Chen JL, Ren Q, Li JQ. [A case report of Cushing's syndrome in pregnancy]. Zhonghua Nei Ke Za Zhi 2017; 56:851-853. [PMID: 29136718 DOI: 10.3760/cma.j.issn.0578-1426.2017.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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48
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Ren Q, An S, Huang Z, Wu N, Shen X. Halogen atom transfer mechanism of iron-catalyzed direct arylation to form biaryl using Density Functional Theory calculations. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.05.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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49
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Liu J, Ren Q, Zhang X, Gong H. Berichtigung: Preparation of Vinyl Arenes by Nickel-Catalyzed Reductive Coupling of Aryl Halides with Vinyl Bromides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703741] [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: 11/07/2022]
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Liu J, Ren Q, Zhang X, Gong H. Corrigendum: Preparation of Vinyl Arenes by Nickel-Catalyzed Reductive Coupling of Aryl Halides with Vinyl Bromides. Angew Chem Int Ed Engl 2017; 56:6698. [DOI: 10.1002/anie.201703741] [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: 11/12/2022]
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