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Jing S, Dai Z, Wu Y, Liu X, Ren T, Liu X, Zhang L, Fu J, Chen X, Xiao W, Wang H, Huang Y, Qu Y, Wang W, Gu X, Ma L, Zhang S, Yu Y, Li L, Han Z, Su X, Qiao Y, Wang C. Prevalence and influencing factors of depressive and anxiety symptoms among hospital-based healthcare workers during the surge period of the COVID-19 pandemic in the Chinese mainland: a multicenter cross-sectional study. QJM 2023; 116:911-922. [PMID: 37561096 DOI: 10.1093/qjmed/hcad188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/06/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND From November 2022 to February 2023, the Chinese mainland experienced a surge in COVID-19 infection and hospitalization, and the hospital-based healthcare workers (HCWs) might suffer serious psychological crisis during this period. This study aims to assess the depressive and anxiety symptoms among HCWs during the surge of COVID-19 pandemic and to provide possible reference on protecting mental health of HCWs in future infectious disease outbreaks. METHODS A multicenter cross-sectional study was carried out among hospital-based HCWs in the Chinese mainland from 5 January to 9 February 2023. The PHQ-9 (nine-item Patient Health Questionnaire) and GAD-7 (seven-item Generalized Anxiety Disorder Questionnaire) were used to measure depressive and anxiety symptoms. Ordinal logistic regression analysis was performed to identify influencing factors. RESULTS A total of 6522 hospital-based HCWs in the Chinse mainland were included in this survey. The prevalence of depressive symptoms among the HCWs was 70.75%, and anxiety symptoms was 47.87%. The HCWs who perceived higher risk of COVID-19 infection and those who had higher work intensity were more likely to experience depressive and anxiety symptoms. Additionally, higher levels of mindfulness, resilience and perceived social support were negatively associated with depressive and anxiety symptoms. CONCLUSION This study revealed that a high proportion of HCWs in the Chinese mainland suffered from mental health disturbances during the surge of the COVID-19 pandemic. Resilience, mindfulness and perceived social support are important protective factors of HCWs' mental health. Tailored interventions, such as mindfulness practice, should be implemented to alleviate psychological symptoms of HCWs during the COVID-19 pandemic or other similar events in the future.
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Affiliation(s)
- S Jing
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z Dai
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Wu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - T Ren
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - L Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - J Fu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Chen
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - W Xiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - H Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Huang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Qu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - W Wang
- School of Nursing, Jining Medical University, Jining, Shandong, China
| | - X Gu
- Affiliated Tumor Hospital, Xinjiang Medical University, Urumqi, China
| | - L Ma
- Public Health School, Dalian Medical University, Dalian, China
| | - S Zhang
- Henan Cancer Hospital, Affiliate Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Yu
- The First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia Autonomous Region, China
| | - L Li
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangdong, China
| | - Z Han
- China Foreign Affairs University, Beijing, China
| | - X Su
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Qiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - C Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Chinese Academy of Engineering, Beijing, China
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Wang J, Peng Y, Jing S, Han L, Li T, Luo J. A deep-learning approach for segmentation of liver tumors in magnetic resonance imaging using UNet+. BMC Cancer 2023; 23:1060. [PMID: 37923988 PMCID: PMC10623778 DOI: 10.1186/s12885-023-11432-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 09/21/2023] [Indexed: 11/06/2023] Open
Abstract
OBJECTIVE Radiomic and deep learning studies based on magnetic resonance imaging (MRI) of liver tumor are gradually increasing. Manual segmentation of normal hepatic tissue and tumor exhibits limitations. METHODS 105 patients diagnosed with hepatocellular carcinoma were retrospectively studied between Jan 2015 and Dec 2020. The patients were divided into three sets: training (n = 83), validation (n = 11), and internal testing (n = 11). Additionally, 9 cases were included from the Cancer Imaging Archive as the external test set. Using the arterial phase and T2WI sequences, expert radiologists manually delineated all images. Using deep learning, liver tumors and liver segments were automatically segmented. A preliminary liver segmentation was performed using the UNet + + network, and the segmented liver mask was re-input as the input end into the UNet + + network to segment liver tumors. The false positivity rate was reduced using a threshold value in the liver tumor segmentation. To evaluate the segmentation results, we calculated the Dice similarity coefficient (DSC), average false positivity rate (AFPR), and delineation time. RESULTS The average DSC of the liver in the validation and internal testing sets was 0.91 and 0.92, respectively. In the validation set, manual and automatic delineation took 182.9 and 2.2 s, respectively. On an average, manual and automatic delineation took 169.8 and 1.7 s, respectively. The average DSC of liver tumors was 0.612 and 0.687 in the validation and internal testing sets, respectively. The average time for manual and automatic delineation and AFPR in the internal testing set were 47.4 s, 2.9 s, and 1.4, respectively, and those in the external test set were 29.5 s, 4.2 s, and 1.6, respectively. CONCLUSION UNet + + can automatically segment normal hepatic tissue and liver tumors based on MR images. It provides a methodological basis for the automated segmentation of liver tumors, improves the delineation efficiency, and meets the requirement of extraction set analysis of further radiomics and deep learning.
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Affiliation(s)
- Jing Wang
- Department of General medicine, The First Medical Center Department of Chinese PLA General Hospital, Peking, 100039, China
| | - Yanyang Peng
- Department of Radiology, First Medical Center of General Hospital of People's Liberation Army, Peking, China
| | - Shi Jing
- Department of Oncology, Huaihe Hospital, Henan University, Kaifeng, 475000, China
| | - Lujun Han
- Department of Radiology, State Key Laboratory of Oncology in South China, Collaborative Innovation Cancer for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510030, China.
- Translational Medical Center of Huaihe Hospital, Henan University, 115 West Gate Street, Kaifeng, 475000, China.
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China.
- Translational Medical Center of Huaihe Hospital, Henan University, 115 West Gate Street, Kaifeng, 475000, China.
| | - Junpeng Luo
- Translational Medical Center of Huaihe Hospital, Henan University, 115 West Gate Street, Kaifeng, 475000, China.
- Academy for Advanced Interdisciplinary Studies, Henan University, Zhengzhou, 450046, China.
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Liu X, Zhang L, Jing S, Wu YJ, Su XY, Qiao YL. [Human papillomavirus vaccination for men who have sex with men in China: demand and suggestions]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1321-1326. [PMID: 37661628 DOI: 10.3760/cma.j.cn112338-20221129-01010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
MSM are a high-risk population for HPV infection and related diseases. MSM can be effectively protected by quadrivalent and nine-valent HPV vaccines. This paper outlines the significance of providing HPV vaccination to MSM, summarizes the basis of HPV vaccination in MSM, and puts forward the following recommendations. First, China should expedite the development and approval of the HPV vaccine for male use. Second, HIV-positive MSM should vaccinate against HPV as soon as possible. Third, prioritize HPV vaccination for MSM individuals aged 26 or less. Fourth, for MSM aged over 26, catch-up vaccination or opportunistic vaccination should be provided when HPV vaccine resources are sufficient. Implementing this vaccination strategy can provide protection for the MSM and control the spread of sexually transmitted diseases.
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Affiliation(s)
- X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - S Jing
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y J Wu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X Y Su
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y L Qiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Sha Z, Jing S, Feng G, Hongjun H, Xianzeng L. Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case report. Front Neurol 2023; 14:1164605. [PMID: 37273698 PMCID: PMC10232843 DOI: 10.3389/fneur.2023.1164605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/25/2023] [Indexed: 06/06/2023] Open
Abstract
A case of neurosyphilis with a positive anti-N-methyl-D-aspartate receptor (NMDAR) antibody was reported. A 54-year-old man who presented with acute memory deficits was admitted to our hospital. Acute ischemic stroke (AIS) was initially considered, and he was prescribed intravenous thrombolysis with recombinant tissue-type plasminogen activator (rt-PA). However, the intermittent onset of episodic memory and orientation disorder still occurred. No diffusion restriction was indicated by magnetic resonance imaging (MRI), and subclinical seizures were frequently found by electroencephalogram (EEG). Rapid plasma reagin (RPR) test of serum showed positive results for syphilis. Analysis of cerebrospinal fluid (CSF) revealed elevated leukocyte count and protein level. RPR test, Treponema pallidum particle agglutination (TPPA) assay, and Treponema pallidum antibody (TP-Ab) in CSF showed positive results, and the anti-NMDAR antibodies were positive in CSF and serum. Finally, the patient was diagnosed with neurosyphilis with a positive anti-NMDAR antibody. The clinical symptoms were improved, and the leukocyte count in CSF was reduced after treatment with intravenous penicillin G and levetiracetam. This case suggests that in cases with positive results for neurosyphilis and NMDAR antibodies, the proper treatment has to be decided based on all of the available clinical and diagnostic testing data.
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Affiliation(s)
- Zhu Sha
- Department of Neurology, Peking University International Hospital, Beijing, China
| | - Shi Jing
- Department of Neurology, Peking University International Hospital, Beijing, China
| | - Gao Feng
- Department of Neurology, Peking University International Hospital, Beijing, China
- Department of Radiology, Peking University First Hospital, Beijing, China
| | - Hao Hongjun
- Department of Radiology, Peking University First Hospital, Beijing, China
| | - Liu Xianzeng
- Department of Neurology, Peking University International Hospital, Beijing, China
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Ruihua M, Meng Z, Nan C, Panqi L, Hua G, Sijia L, Jing S, Ke Z, Yunlong T, Shuping T, Fude Y, Li T, Zhiren W. Differences in Facial Expression Recognition Between Unipolar and Bipolar Depression. Front Psychol 2021; 12:619368. [PMID: 34335353 PMCID: PMC8316620 DOI: 10.3389/fpsyg.2021.619368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 06/22/2021] [Indexed: 11/13/2022] Open
Abstract
PURPOSE To explore the differences in facial emotion recognition among patients with unipolar depression (UD), bipolar depression (BD), and normal controls. METHODS Thirty patients with UD and 30 patients with BD, respectively, were recruited in Zhumadian Second People's Hospital from July 2018 to August 2019. Fifteen groups of facial expressions including happiness, sadness, anger, surprise, fear, and disgust were identified. RESULTS A single-factor ANOVA was used to analyze the facial expression recognition results of the three groups, and the differences were found in the happy-sad (P = 0.009), happy-angry (P = 0.001), happy-surprised (P = 0.034), and disgust-surprised (P = 0.038) facial expression groups. The independent sample T-test analysis showed that compared with the normal control group, there were differences in the happy-sad (P = 0.009) and happy-angry (P = 0.009) groups in patients with BD, and the accuracy of facial expression recognition was lower than the normal control group. Compared with patients with UD, there were differences between the happy-sad (P = 0.005) and happy-angry (P = 0.002) groups, and the identification accuracy of patients with UD was higher than that of patients with BD. The time of facial expression recognition in the normal control group was shorter than that in the patient group. Using happiness-sadness to distinguish unipolar and BDs, the area under the ROC curve (AUC) is 0.933, the specificity is 0.889, and the sensitivity is 0.667. Using happiness-anger to distinguish unipolar and BD, the AUC was 0.733, the specificity was 0.778, and the sensitivity was 0.600. CONCLUSION Patients with UD had lower performance in recognizing negative expressions and had longer recognition times. Those with BD had lower accuracy in recognizing positive expressions and longer recognition times. Rapid facial expression recognition performance may be as a potential endophenotype for early identification of unipolar and BD.
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Affiliation(s)
- Ma Ruihua
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Zhao Meng
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Chen Nan
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Liu Panqi
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Guo Hua
- Zhumadian Psychiatric Hospital, Zhumadian, China
| | - Liu Sijia
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Shi Jing
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Zhao Ke
- State Key Laboratory of Brain and Cognitive Science, University of the Chinese Academy of Sciences, Beijing, China
| | - Tan Yunlong
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Tan Shuping
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Yang Fude
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Tian Li
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
- Department of Physiology, Faculty of Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Wang Zhiren
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
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Ruihua M, Hua G, Meng Z, Nan C, Panqi L, Sijia L, Jing S, Yunlong T, Shuping T, Fude Y, Li T, Zhiren W. The Relationship Between Facial Expression and Cognitive Function in Patients With Depression. Front Psychol 2021; 12:648346. [PMID: 34234708 PMCID: PMC8256151 DOI: 10.3389/fpsyg.2021.648346] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 05/26/2021] [Indexed: 11/15/2022] Open
Abstract
Objective: Considerable evidence has shown that facial expression recognition ability and cognitive function are impaired in patients with depression. We aimed to investigate the relationship between facial expression recognition and cognitive function in patients with depression. Methods: A total of 51 participants (i.e., 31 patients with depression and 20 healthy control subjects) underwent facial expression recognition tests, measuring anger, fear, disgust, sadness, happiness, and surprise. The Chinese version of the MATRICS Consensus Cognitive Battery (MCCB), which assesses seven cognitive domains, was used. Results: When compared with a control group, there were differences in the recognition of the expressions of sadness (p = 0.036), happiness (p = 0.041), and disgust (p = 0.030) in a depression group. In terms of cognitive function, the scores of patients with depression in the Trail Making Test (TMT; p < 0.001), symbol coding (p < 0.001), spatial span (p < 0.001), mazes (p = 0.007), the Brief Visuospatial Memory Test (BVMT; p = 0.001), category fluency (p = 0.029), and continuous performance test (p = 0.001) were lower than those of the control group, and the difference was statistically significant. The accuracy of sadness and disgust expression recognition in patients with depression was significantly positively correlated with cognitive function scores. The deficits in sadness expression recognition were significantly correlated with the TMT (p = 0.001, r = 0.561), symbol coding (p = 0.001, r = 0.596), maze (p = 0.015, r = 0.439), and the BVMT (p = 0.044, r = 0.370). The deficits in disgust expression recognition were significantly correlated with impairments in the TMT (p = 0.005, r = 0.501) and symbol coding (p = 0.001, r = 0.560). Conclusion: Since cognitive function is impaired in patients with depression, the ability to recognize negative facial expressions declines, which is mainly reflected in processing speed, reasoning, problem-solving, and memory.
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Affiliation(s)
- Ma Ruihua
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Guo Hua
- Zhumadian Psychiatric Hospital, Zhumadian, China
| | - Zhao Meng
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Chen Nan
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Liu Panqi
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Liu Sijia
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Shi Jing
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Tan Yunlong
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Tan Shuping
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Yang Fude
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Tian Li
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China.,Department of Physiology, Faculty of Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Wang Zhiren
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
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Zhao Q, Wang J, Guo H, Li Y, Lin C, Cheng Y, Zhang Z, Wang D, Zhao X, Liu Y, Jing S, Yang P, Tian Y, Liu Y. 1427P A phase II study of neoadjuvant concurrent chemoradiotherapy with apatinib for HER-2 negative Siewert type II and III adenocarcinoma of esophagogastric junction. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Jing S, Lu J, Song J, Luo S, Zhou L, Quan C, Xi J, Zhao C. P.376Effect of low-dose rituximab treatment on T- and B-cell lymphocyte imbalance in refractory myasthenia gravis. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.538] [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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Guo Z, Zhang J, Gong Z, Jing S. Correlation of factors associated with postoperative infection in patients with malignant oral and maxillofacial tumours: a logistic regression analysis. Br J Oral Maxillofac Surg 2019; 57:460-465. [DOI: 10.1016/j.bjoms.2019.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 04/04/2019] [Indexed: 11/25/2022]
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Haige Z, Jing S, Yixing C, Zhaochong Z. EP-1429 IG-IMRT improves short-term survival for lymph node metastases from hepatocellular carcinoma. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31849-3] [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: 11/26/2022]
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Chen W, Jing M, Zhang Q, Yuan R, Jing S. A meta-analysis evaluating the relationship between IL-18 gene promoter polymorphisms and an individual's susceptibility to HCV infection. Acta Gastroenterol Belg 2018; 81:39-44. [PMID: 29562376] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Several observational studies have investigated interleukin-18 (IL-18) gene polymorphisms with regard to susceptibility to hepatitis C virus (HCV) infection, but the results have been inconsistent. AIM To evaluate the relationships between functional polymorphisms in the IL-18 gene and an individual's susceptibility to HCV infection, a meta-analysis was performed. Methods: A literature search was conducted using the PubMed, EMBASE, Web of Science and China BioMedicine databases to investigate the correlation between IL-18 gene polymorphisms and susceptibility to HCV infection. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were calculated. RESULTS The polymorphisms IL-18-607 C>A and -137 G>C were correlated with susceptibility to HCV infection in Asian populations. However, there was no evidence indicating a correlation between either of these polymorphisms and susceptibility to HCV infection in Caucasian populations. CONCLUSIONS Our current meta-analysis suggests that the -607 C>A and -137 G>C polymorphisms in the IL-18 gene promoter play important roles in determining the response to HCV in Asian populations. More studies with larger sample sizes are needed to evaluate the associations between IL-18 genetic polymorphisms and HCV infection risk.
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Affiliation(s)
- W Chen
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
| | - M Jing
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
| | - Q Zhang
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
| | - R Yuan
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
| | - S Jing
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
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Zhang LF, Feng HB, Yu ZG, Jing S, Wan F. Surgical Training Improves Performance in Minimally Invasive Left Ventricular Assist Device Implantation Without Cardiopulmonary Bypass. J Surg Educ 2018; 75:195-199. [PMID: 28711647 DOI: 10.1016/j.jsurg.2017.06.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 05/24/2017] [Accepted: 06/24/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE We introduced a live animal model for training of minimally invasive implantation of a continuous-flow left ventricular assist device (CF-LVAD) without cardiopulmonary bypass for operator's performance improvement. DESIGN After watching a videotape of LVAD implantation on the beating heart through the cardiac apex, the surgical team performed implantation of LVADs into 5 pigs during 3 training sessions in a time series. The procedure success rate, operating time, and technical and global performances by self-evaluation and senior evaluation were compared among the sessions. SETTING Animal Experiment Center in Peking University Third Hospital. PARTICIPANTS Surgical team comprising a surgical operator, surgical assistant, anesthetist, and scrub nurse performed 3 training sessions in a time series. RESULTS The urgent situations requiring proper management were myocardial laceration, massive blood loss, and ventricular arrhythmia induced by hemodynamic instability. After practice, the success rate increased to 100% in session 3. The operating times of session 2 (189.80 ± 14.34min) and session 3 (149.00 ± 22.85min) were significantly lower than that of session 1 (262.20 ± 28.26min). The technical and global performances by self-evaluation and senior evaluation were significantly better in session 3 than session 1. CONCLUSION Simulation training with high-fidelity in vivo model for minimally invasive CF-LVAD implantation improves the surgical team's global performance, success rate, and the ability to manage emergency situations in surgery.
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Affiliation(s)
- Lu-Feng Zhang
- Department of Cardiovascular Surgery, Peking University Third Hospital, Beijing, China.
| | - Hai-Bo Feng
- Department of Cardiovascular Surgery, Peking University Third Hospital, Beijing, China
| | - Zhi-Guo Yu
- Department of Cardiovascular Surgery, Peking University Third Hospital, Beijing, China
| | - Shi Jing
- Animal Experimental Center, Peking University Third Hospital, Beijing, China
| | - Feng Wan
- Department of Cardiovascular Surgery, Peking University Third Hospital, Beijing, China
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Wang J, Zhao Q, Huang X, Jing S, Wang Y, Cao F. Feasibility Analysis of Involved-Field Irradiation in Patients With Locally Advanced Adenocarcinoma of the Gastroesophageal Junction in Siewert’s Type 2 and 3 Undergoing Preoperative Concurrent Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1071] [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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Cheng Y, Wang Q, Wang J, Jing S, Liu Q. Nutrition Status and Inflammatory Indexes Could Predict Acute Toxicity After Concurrent Chemoradiation Therapy for Esophageal Carcinoma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Menglin Y, Danyang Y, Jing S, Duanmei S, Zhengwen X. Phosphorus removal and recovery from high phosphorus wastewater by the HAP crystallization process. ACTA ACUST UNITED AC 2016. [DOI: 10.13005/ojc/320125] [Citation(s) in RCA: 4] [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] [Indexed: 11/16/2022]
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Trowbridge IS, Collawn J, Jing S, White S, Esekogwu V, Stangel M. Structure-function analysis of the human transferrin receptor: effects of anti-receptor monoclonal antibodies on tumor growth. Curr Stud Hematol Blood Transfus 2015:139-47. [PMID: 1954762 DOI: 10.1159/000419352] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- I S Trowbridge
- Department of Cancer Biology, Salk Institute, San Diego, Calif
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Zhao L, Chen X, Cai L, Zhang C, Wang Q, Jing S, Chen G, Li J, Zhang J, Fang Y. Randomized, double-blind, placebo-controlled, multiple-dose study of the safety, tolerability and pharmacokinetics of benvitimod, a candidate drug for the treatment of psoriasis. J Clin Pharm Ther 2014; 39:418-23. [PMID: 24673513 DOI: 10.1111/jcpt.12158] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 02/25/2014] [Indexed: 12/01/2022]
Affiliation(s)
- L. Zhao
- Phase I Research Unit; Department of Pharmacy; Peking University People's Hospital; Beijing China
| | - X. Chen
- Phase I Research Unit; Department of Pharmacy; Peking University People's Hospital; Beijing China
| | - L. Cai
- Department of dermatology; Peking University People's Hospital; Beijing China
| | - C. Zhang
- Phase I Research Unit; Department of Pharmacy; Peking University People's Hospital; Beijing China
| | - Q. Wang
- Phase I Research Unit; Department of Pharmacy; Peking University People's Hospital; Beijing China
| | - S. Jing
- Phase I Research Unit; Department of Pharmacy; Peking University People's Hospital; Beijing China
| | - G. Chen
- Celestial Pharmaceuticals Co., Ltd; Shenzhen China
| | - J. Li
- Celestial Pharmaceuticals Co., Ltd; Shenzhen China
| | - J. Zhang
- Department of dermatology; Peking University People's Hospital; Beijing China
| | - Y. Fang
- Phase I Research Unit; Department of Pharmacy; Peking University People's Hospital; Beijing China
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Wang J, Yu J, Jing S, Cheng Y, Liu Q, Wang Y, Cao F, Shang K, Jiao W, Long S. Overexpression of Epidermal Growth Factor Receptor and Its Clinicopathological Significance: A Meta-Analysis of 1118 Cases With Esophageal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wang J, Cao F, Jing S, Wang Y, Liu Q, Cheng Y, Shang K, Jiao W, Long S. Prognostic Analysis in 182 Thoracic Esophageal Carcinoma Patients With Atypical Hyperplasia in Esophageal Stump and Esophageal Stump Cancer After Esophagectomy. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.757] [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: 10/26/2022]
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Pu L, Jing S, Bianqin G, Ping L, Qindong L, Chenggui L, Feng C, Wenbin K, Qin W, Jinyu D, Qianfeng X, Yu L, Zhiguang T. Development of a Chemiluminescence Immunoassay for Serum YB-1 and its Clinical Application as a Potential Diagnostic Marker for Hepatocellular Carcinoma. Hepat Mon 2013; 13:e8918. [PMID: 24069038 PMCID: PMC3782250 DOI: 10.5812/hepatmon.8918] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 01/14/2013] [Accepted: 01/24/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Y-box binding protein 1 (YB-1) overexpression has been shown in various tumor cells including hepatocellular carcinoma (HCC); moreover, this protein can be actively secreted. OBJECTIVES The aim of this study was to establish a method to quantify serum YB-1 and evaluate its clinical application in the clinical diagnosis of HCC. PATIENTS AND METHODS Recombinant YB-1 and two populations of its antibodies were prepared. A monoclonal antibody was specific to the N-terminus of YB-1 amino acids 134-160; and another was a polyclonal antibody. A sandwich-type chemiluminescence immunoassay (CLIA) was developed and evaluated. Levels of YB-1 and alpha fetoprotein (AFP) in serum samples from 105 HCC patients, 25 hepatitis B virus patients, 25 cirrhosis patients, and 50 healthy donors were detected using the established method and an AFP electrochemiluminescence kit. RESULTS The developed method was linear to 150 μg/L of YB-1 with a minimum detection limit of 0.01 μg/L. The average recoveries were between 93.9% and 109.0%. The mean intra- and inter-assay coefficients of variation (CVs) were 4.0-4.8% and 8.2-10.2%, respectively. The relationship between the concentration of diluted YB-1 and the dilution ratios gave a good linear correlation coefficient of 0.9986. The YB-1 concentration was increased in serum of HCC patients (33.0 ± 23.39 μg/L) compared to healthy individuals (13.2 ± 5.29 μg/L, P < 0.0001), patients with HBV (17.9 ± 7.49 μg/L, P = 0.0003), and patients with HBV cirrhosis (20.7 ± 8.75 μg/L, P < 0.05). Moreover, the combination of YB-1 and alpha-fetoprotein had a high sensitivity (89.5%) and reasonable specificity (62.0%) in identifying HCC. CONCLUSIONS The established method has an acceptable performance in quantifying YB-1. In addition, serum YB-1 may aid in the diagnosis of HCC.
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Affiliation(s)
- Li Pu
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Shi Jing
- Department of Clinical Laboratory, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Guo Bianqin
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Liu Ping
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Liang Qindong
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Liu Chenggui
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Cheng Feng
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Kuang Wenbin
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Wang Qin
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Dong Jinyu
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Xia Qianfeng
- Department of Laboratory Medicine, Hainan Medical College, Hainan, China
| | - Liu Yu
- Department of Clinical Laboratory, Chongqing Tumor Hospital, Chongqing, China
| | - Tu Zhiguang
- Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
- Corresponding author: Tu Zhiguang, Key Laboratory of Clinical Laboratory Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China. Tel: +86-2368485759, Fax: +86-2368485005, E-mail:
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Jing S, Liu B, Peng L, Peng X, Zhu L, Fu Q, He G. Development and use of EST-SSR markers for assessing genetic diversity in the brown planthopper (Nilaparvata lugens Stål). Bull Entomol Res 2012; 102:113-122. [PMID: 21896240 DOI: 10.1017/s0007485311000435] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
To assess genetic diversity in populations of the brown planthopper (Nilaparvata lugens Stål) (Homoptera: Delphacidae), we have developed and applied microsatellite, or simple sequence repeat (SSR), markers from expressed sequence tags (ESTs). We found that the brown planthopper clusters of ESTs were rich in SSRs with unique frequencies and distributions of SSR motifs. Three hundred and fifty-one EST-SSR markers were developed and yielded clear bands from samples of four brown planthopper populations. High cross-species transferability of these markers was detected in the closely related planthopper N. muiri. The newly developed EST-SSR markers provided sufficient resolution to distinguish within and among biotypes. Analyses based on SSR data revealed host resistance-based genetic differentiation among different brown planthopper populations; the genetic diversity of populations feeding on susceptible rice varieties was lower than that of populations feeding on resistant rice varieties. This is the first large-scale development of brown planthopper SSR markers, which will be useful for future molecular genetics and genomics studies of this serious agricultural pest.
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Affiliation(s)
- S Jing
- State Key Laboratory of Hybrid Rice, College of Life Science, Wuhan University, Wuhan, People's Republic of China
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Yue L, Jing S, Chunliu H, Weimin L, Baofeng Y, Zhenwei P, Deli D, Guangzhong L, Li S, Lei L, Danghui S, Xiangyang T, Zhihua G, Yongtai G. Ketamine-induced ventricular structural, sympathetic and electrophysiologic remodelling: pathological consequences and protective effects of metoprolol. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.18] [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: 11/03/2022]
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Hu L, Shen L, Li D, Nie P, Jing S, Xiao H, Shao Q, Yi J. Atorvastatin suppress oxidised low density lipoprotein-induced dendritic cell-like differentiation of RAW264.7 cells by inactivation of the p38 MAPK pathway. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.116] [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: 11/03/2022]
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Hong W, Jing L, Xianxian Z, Bo L, Yanyan W, Xing Z, Jing S, Jingwei P, Fuzhi G, Weiping L, Ersong W, Yongwen Q. Transcatheter closure of very large secundum atrial septal defects: long-term follow-up study. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.602] [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: 11/04/2022]
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Yue L, Jing S, Weimin L, Baofeng Y, Hongbo S, Deli D, Zhenwei P, Li S, Guangzhong L, Jiyi Z, Hongjie X, Danghui S, Ning Y, Yongtai G. Atorvastatin attenuates atrial structural, autonomic and electrophysiologic remodelling by its anti-oxidant and anti-inflammatory action in atrial fibrillation dogs. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.17] [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: 11/04/2022]
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Mannan T, Jing S, Foroushania SH, Fortune F, Wan H. RNAi-mediated inhibition of the desmosomal cadherin (desmoglein 3) impairs epithelial cell proliferation. Cell Prolif 2011; 44:301-10. [PMID: 21702856 DOI: 10.1111/j.1365-2184.2011.00765.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES Desmoglein 3 (Dsg3) is a desmosomal adhesion protein expressed in basal and immediate suprabasal layers of skin. Importance of Dsg3 in cell-cell adhesion and maintenance of tissue integrity is illustrated by findings of keratinocyte dissociation in the autoimmune disease, pemphigus vulgaris, where autoantibodies target Dsg3 on keratinocyte surfaces and cause Dsg3 depletion from desmosomes. However, recognition of possible participation of involvement of Dsg3 in cell proliferation remains controversial. Currently, available evidence suggests that Dsg3 may have both anti- and pro-proliferative roles in keratinocytes. The aim of this study was to use RNA interference (RNAi) strategy to investigate effects of silencing Dsg3 in cell-cell adhesion and cell proliferation in two cell lines, HaCaT and MDCK. MATERIALS AND METHODS Cells were transfected with siRNA, and knockdown of Dsg3 was assessed by western blotting, fluorescence-activated cell sorting and confocal microscopy. Cell-cell adhesion was analysed using the hanging drop/fragmentation assay, and cell proliferation by colony forming efficiency, BrdU incorporation, cell counts and organotypic culture. RESULTS Silencing Dsg3 caused defects in cell-cell adhesion and concomitant reduction in cell proliferation in both HaCaT and MDCK cells. CONCLUSION These findings suggest that Dsg3 depletion by RNAi reduces cell proliferation, which is likely to be secondary to a defect in cell-cell adhesion, an essential function required for cell differentiation and morphogenesis.
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Affiliation(s)
- T Mannan
- Queen Mary University of London, Barts and The London School of Medicine and Dentistry, Centre for Clinical and Diagnostic Oral Sciences, Institute of Dentistry, UK
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Jing S, Yidong W, Yuanyuan F, Yong W, Lei H, Yawei X. e0365 Clinical study on relationship between serum gamma-glutamyltransferase and coronary heart disease in women. Heart 2010. [DOI: 10.1136/hrt.2010.208967.365] [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: 11/03/2022]
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Gu L, Zhang Y, Niu X, Jing S, Zhou Y, Wang F, Zhang C. PP-063 The Research of signal transduction mechanism in Ana-1 Cells infected by Influenza Virus (FM1) and the Intervention of Dureping Injection. Int J Infect Dis 2008. [DOI: 10.1016/s1201-9712(09)60214-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Xiang YJ, Jinzhou T, Jing S, Yongyan W, Quan H, Yin R, Haiyun S, Congshun S. P4-289: Protein expression characteristic of beta-amyloid 42 in hippocampus of rats with vascular dementia. Alzheimers Dement 2008. [DOI: 10.1016/j.jalz.2008.05.2358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yin Jun Xiang
- Department of Pharmacology; Geriatrics Institute, Dongzhimeng Hospital of Beijing University of Chinese Medicine; Beijing China
| | - Tian Jinzhou
- Neurology of the Elderly; Dongzhimeng Hospital of Beijing University of Chinese Medicine; Beijing China
| | - Shi Jing
- Neurology of the Elderly; Dongzhimeng Hospital of Beijing University of Chinese Medicine; Beijing China
| | | | - Hu Quan
- Department of Pharmacology; Geriatrics Institute, Dongzhimeng Hospital of Beijing University of Chinese Medicine; Beijing China
| | - Ren Yin
- Department of Pharmacology; Geriatrics Institute, Dongzhimeng Hospital of Beijing University of Chinese Medicine; Beijing China
| | - Shun Haiyun
- Department of Pharmacology; Geriatrics Institute, Dongzhimeng Hospital of Beijing University of Chinese Medicine; Beijing China
| | - Song Congshun
- Department of Pharmacology; Geriatrics Institute, Dongzhimeng Hospital of Beijing University of Chinese Medicine; Beijing China
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Xiang YJ, Jinzhou T, Jing S, Quan H, Yongyan W, Yi X, Yin R, Congshun S, Haiyun S. P2‐334: Influence of GETO on protein expression of CRF and PKC in brain of rats with vascular dementia. Alzheimers Dement 2008. [DOI: 10.1016/j.jalz.2008.05.1411] [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: 11/24/2022]
Affiliation(s)
- Yin Jun Xiang
- Department of PharmacologyGeriatrics Institute , Dongzhimeng Hospital of Beijing University of Chinese MedicineBeijingChina
| | - Tian Jinzhou
- Neurology of the ElderlyDongzhimeng Hospital of Beijing University of Chinese MedicineBeijingChina
| | - Shi Jing
- Neurology of the ElderlyDongzhimeng Hospital of Beijing University of Chinese MedicineBeijingChina
| | - Hu Quan
- Department of PharmacologyGeriatrics Institute , Dongzhimeng Hospital of Beijing University of Chinese MedicineBeijingChina
| | | | - Xu Yi
- Neurology of the ElderlyDongzhimeng Hospital of Beijing University of Chinese MedicineBeijingChina
| | - Ren Yin
- Department of PharmacologyGeriatrics Institute , Dongzhimeng Hospital of Beijing University of Chinese MedicineBeijingChina
| | - Song Congshun
- Department of PharmacologyGeriatrics Institute , Dongzhimeng Hospital of Beijing University of Chinese MedicineBeijingChina
| | - Shun Haiyun
- Department of PharmacologyGeriatrics Institute , Dongzhimeng Hospital of Beijing University of Chinese MedicineBeijingChina
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Yun-Peng L, Jingdong Z, Yuee T, Bo J, Ping Y, Mingfang Z, Jing S, Lingyun Z, Zhi L. Randomized phase II study of thalidomide for the control of delayed chemotherapy-induced nausea and vomiting. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.9614] [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: 11/20/2022] Open
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Jing S, Jia-Ning X, Tian-You S, Xin H, Jun-Wei Y, Li W, Yong F, Ping Z. Hydrothermal synthesis and structure of [Co(imi) 6] · (NBA) 2 · 2H 2O (imi = imidazole, NBA = 4-nitrobenzoic acid). J COORD CHEM 2007. [DOI: 10.1080/00958970600763672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Shi Jing
- a College of Chemistry , Jilin University , Changchun City, Jilin Province 130012, China
| | - Xu Jia-Ning
- a College of Chemistry , Jilin University , Changchun City, Jilin Province 130012, China
| | - Song Tian-You
- a College of Chemistry , Jilin University , Changchun City, Jilin Province 130012, China
| | - He Xin
- a College of Chemistry , Jilin University , Changchun City, Jilin Province 130012, China
| | - Ye Jun-Wei
- b Key Laboratory for Supramolecular Structure and Materials of Ministry of Education , Jilin University , Changchun City, Jilin Province 130012, China
| | - Wang Li
- a College of Chemistry , Jilin University , Changchun City, Jilin Province 130012, China
| | - Fan Yong
- a College of Chemistry , Jilin University , Changchun City, Jilin Province 130012, China
| | - Zhang Ping
- a College of Chemistry , Jilin University , Changchun City, Jilin Province 130012, China
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Jian-Hong W, Jing S, Jian-Guo G, Run-Zhang Y. Surface Modification of PAn Particles. ACTA PHYS-CHIM SIN 2003. [DOI: 10.3866/pku.whxb20030719] [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: 11/11/2022]
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Yang SM, Jing S, Doi T, Kaneko T, Yamashita T. Isolation of Guinea pig inner hair cells using manual microsurgical dissection. ORL J Otorhinolaryngol Relat Spec 2002; 64:1-5. [PMID: 11891389 DOI: 10.1159/000049078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cochlear inner hair cells (IHCs) and outer hair cells (OHCs) show distinctive morphological features that are usually sufficient to distinguish these two species in vitro. However, OHCs may sometimes resemble IHCs when they are mechanically distorted or begin swelling at their basal end. As a result, accurately discriminating the cells based on morphology was thought to be problematic. An objective method that allows us to clearly and unambiguously distinguish these two cell types is therefore of continued interest. We describe a protocol in which solitary IHCs were harvested from guinea pig cochlea using a manual microsurgical dissection.
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Affiliation(s)
- S M Yang
- Department of Otolaryngology, Kansai Medical University, Osaka, Japan
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Yu Q, Ma L, Jing S, Xu Y, Geng D. [Clinic significance of nm23, collage IV and PCNA expression in non-small cell lung cancer]. Zhongguo Fei Ai Za Zhi 2001; 4:469-70. [PMID: 21106162 DOI: 10.3779/j.issn.1009-3419.2001.06.21] [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
BACKGROUND To study the significance of nm23, collagen IV and PCNA expressions in non-small cell lung cancer. METHODS Expressions of the nm23, collagen IV and PCNA in 84 cases of non-small cell lung cancer were examined with SP immunohistochemical technique. Of the 84 cases, there were squamous cell carcinoma 42, adenocarcinoma 42, stage I 27, stage II 24, stage III 24, and stage IV 9. Statistical analysis was performed with Chi-Square test. RESULTS Expressions of the nm23, collagen IV and PCNA in 84 cases of non-small cell lung cancer were 60. 7% ( 51/ 84) , 75. 0% ( 63/ 84) and 53. 6% ( 45/ 84) respectively. There was negative correlation between the lymph node metastasis and the expressions of nm23 and collagen IV in squamous cell carcinoma, and the expressions of collagen IV and PCNA were associated with tumor differentiation. No correlation was found between TNM stage and expressions of nm23, collagen IV and PCNA. CONCLUSIONS The results indicate that nm23, collagen IV and PCNA participate the modulation of metastasis of non-small cell lung cancer and that they may be used to evaluate the potential of metastasis.
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Affiliation(s)
- Q Yu
- Liaoning Provincial Hospital, Shengyang , Liaoning 110015, P. R . China
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Jing S, Ju Y, He Y, He M, Mao B. Clinical features of diffuse axonal injury. Chin J Traumatol 2001; 4:204-7. [PMID: 11835733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE To analyze the mechanism of diffuse axonal injury (DAI) and study the relationship between DAI and brain concussion, brain contusion, and primary brain stem injury. METHODS The clinical data and iconographic characteristics of 56 patients with DAI were analyzed retrospectively. RESULTS Traffic accidents were the main cause of DAI. Among t he 56 cases, 34 were injured for at least twice, and 71.43% of the patients were complicated with contusion. CONCLUSIONS It is considered that DAI is a common pattern of primary brain injury, which is often underestimated. And DAI includes cerebral concussion and primary brain injury, and is often complicated by cerebral cortex contusion. Therefore, it is very simple and practical to divide primary brain injuries into local and diffuse injuries.
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Affiliation(s)
- S Jing
- Department of Neurosurgery, First Affiliated Hospital, West China University of Medical Sciences, Chengdu 610041, China
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Markell D, Hui J, Narhi L, Lau D, LeBel C, Aparisio D, Lile J, Jing S, Yui D, Chang BS. Pharmaceutical significance of the cyclic imide form of recombinant human glial cell line derived neurotrophic factor. Pharm Res 2001; 18:1361-6. [PMID: 11683253 DOI: 10.1023/a:1013058532425] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
PURPOSE The purpose of this paper is to determine the significance of cyclic imide formation of an aspartic acid residue during storage on the pharmaceutical quality of a recombinant human glial cell line-derived neurotrophic factor (rhGDNF) formulation. METHODS A combination of chromatography, peptide mapping, mass spectroscopy, and protein sequencing was used to purify and characterize the degradation product. Circular dichroism, 1,8-ANS and heparin binding, melting temperature determination, bioassays, and preclinical pharmacokinetic and toxicology testing were performed to examine its equivalence to native rhGDNF. RESULTS The rhGDNF with cyclic imide at aspartic acid residue 96 showed identical activity, structure, pharmacokinetic profile, and toxicity profile to the native rhGDNF. CONCLUSIONS Formation of cyclic imide at aspartic acid residue 96 does not affect the pharmaceutical quality of the rhGDNF formulation.
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Affiliation(s)
- D Markell
- Department of Pharmaceutics and Drug Delivery, Amgen, Inc., Thousand Oaks, CA 91320, USA
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Abstract
Targeted expression of the SV40 large T-antigen oncoprotein (T-Ag) induces cardiomyocyte proliferation in the atria and ventricles of transgenic mice. Previous studies have identified the p53 tumor suppressor, p107 (a homologue of the retinoblastoma tumor suppressor), and p193 (a novel BH3 only proapoptosis protein) as prominent TAg binding proteins in cardiomyocyte cell lines derived from these transgenic mice. To further explore the significance of these protein-protein interactions in the regulation of cardiomyocyte proliferation, a transgene comprising the human atrial natriuretic factor (ANF) promoter and sequences encoding a mutant T-Ag lacking the p53 binding domain was generated. Repeated micro-injection of this DNA gave rise to genetically mosaic animals with minimal transgene content, suggesting that widespread cardiac expression of mutant T-Ag was deleterious. This notion was supported by the observation that the transgene was selectively lost from the cardiac myocytes (but not the cardiac fibroblasts) in the mosaic animals. Crosses between the mosaic mice and animals expressing a cardiac restricted dominant negative p53 resulted in transgene transmission with ensuing overt cardiac tumorigenesis. Transfection of the mutant T-Ag in embryonic stem (ES) cell-derived cardiomyocytes resulted in wide-spread cell death with characteristics typical of apoptosis. Co-transfection with a dominant negative p53 transgene rescued mutant TAg-induced cell death in the ES-derived cardiomyocyte cultures, resulting in a marked proliferative response similar to that seen in vivo with the rescued transgenic mouse study. These results indicate that T-Ag expression in the absence of p53 functional abrogation results in cardiomyocyte death.
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Affiliation(s)
- N E Huh
- Wells Center for Pediatric Research and Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN 46202-5225, USA
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Abstract
Endogenous retinoic acid may play a role in inducing smooth muscle differentiation in the fetal ductus arteriosus. Maternal administration of retinoic acid may accelerate the process. This study was designed to investigate the effect of vitamin A on developmental changes in the contractile system of the ductus. Vitamin A was injected into pregnant rats and the ductus was isolated from the fetus at 19, 20, or 21 d of gestation. The fetus at 19 d of gestation served as a model of the preterm fetus. The force of contraction and [Ca]i were measured. Membrane depolarization caused by high KCl induced ductal contraction in all age groups studied. In the 19-d fetus, O2 did not cause significant contraction or changes in [Ca]i in the control group, but it did induce a significant contraction and increases in [Ca]i in the vitamin A-treated group. In the 20- and 21-d fetuses, 5% O2-induced contraction in the vitamin A-treated group was significantly greater than in the control group. In the 19-d fetus, noradrenaline-induced contraction and increases in [Ca]i, indicators of the size of the intracellular Ca pool, were observed and they were similar in the control group and in the vitamin A-treated group. These data suggest that 1) in the preterm fetus, the contractile system, including membrane depolarization, [Ca]i increase, and its activation of contractile proteins, is already functioning, but the O2-sensing mechanism is underdeveloped, 2) vitamin A accelerates the development of the O2-sensing mechanism of the ductus arteriosus.
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Affiliation(s)
- G R Wu
- Department of Pediatric Cardiology, The Heart Institute of Japan, Tokyo Women's Medical University, Tokyo, 162 Japan
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Jing S, Li H. Hopper-valve for fine powders in a moving-bed standpipe. POWDER TECHNOL 2001. [DOI: 10.1016/s0032-5910(00)00240-0] [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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43
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Chai J, Yang H, Li L, Guo Z, Sheng Z, Xu M, Chen B, Jia X, Jing S, Lu J, Li G. [Clinical use of acellular allogenic dermis or acellular porcine dermis with split-thickness autologous skin graft in 119 cases]. Zhonghua Wai Ke Za Zhi 2000; 38:790-3. [PMID: 11832167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To observe the effect of acellular allogenic dermis or acellular porcine dermis together with split-thickness autologous skin graft on coverage of deep burn wound and the wound of scar excision. METHODS Acellular allogenic dermis or acellular porcine dermis produced by our unit, with split-thickness autologous skin graft, were used in repairing various wounds in 119 cases. The take rate of various wounds was compared, and the take rate of wounds in which autologous skin from different sites was used to cover either acellular allogenic dermis or acellular porcine dermis was also compared. Histological examination and follow-up were made in some cases. RESULTS After tangential excision, eschar excision and scar excision, the wounds were covered with either allogenic acellular dermis or porcine acellular dermis and autologous split-thickness skin. The take rate was found to be (93.4 +/- 3.4)%, (92.1 +/- 4.6)%, (94.5 +/- 3.5)%, respectively. There was no a significant difference in take rate (P > 0.05). No significant difference in take rate between the transplantation of allogenic acellular dermis with autologous split-thickness skin and transplantation of porcine acellular dermis with autologous split-thickness skin was found (P > 0.05). When autologous split-thickness skin harvested from the trunk or extremities was used, the take rate was (93.1 +/- 4.8)%, (89.0 +/- 6.2)%, respectively, whereas the take rate was only about 70% - 80% when skin harvested from the scalp was used. The take rate was only about 40% when acellular allogenic dermis and autologous micro-skin graft were used to cover the wound. Histological examination 19 months after the transplantation revealed normal structure. Collagenous fibers were orderly arranged. There was no apparent hyperplasia of collagenous fibers. Hair follicles, sweat glands and other skin appendages were not found in the healed area. Grossly, no obvious pigmentation was seen, the surface was smooth with slight wound contraction, and the consistency was flexible. CONCLUSION Acellular allogenic split-thickness dermis or acellular porcine split-thickness dermis with autologous split-thickness dermis for coverage of deep burn wound and the wound of scar excision is an ideal material.
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Affiliation(s)
- J Chai
- Burns Institute, 304th Hospital, People's liberation Army, Beijing 100037, China
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Pasumarthi KB, Nakajima H, Nakajima HO, Jing S, Field LJ. Enhanced cardiomyocyte DNA synthesis during myocardial hypertrophy in mice expressing a modified TSC2 transgene. Circ Res 2000; 86:1069-77. [PMID: 10827137 DOI: 10.1161/01.res.86.10.1069] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Tuberous sclerosis complex (TSC) is a rare genetic disorder characterized by the appearance of benign tumors in multiple organs, including the heart. Disease progression is accompanied by homozygous mutation at 1 of 2 loci (designated TSC1 or TSC2), leading to the suggestion that these genes function as tumor suppressors. In this study, we generated a series of TSC2 cDNAs in which one or more structural motifs were deleted, with the hope that expression of the modified gene product would override the growth-inhibitory activity of the endogenous TSC2 gene product. Several of the modified cDNAs enhanced growth rate, increased endocytosis, and promoted aberrant protein trafficking when expressed in NIH-3T3 cells, thereby mimicking phenotypes typical of TSC2-deficient cells. Surprisingly, targeted expression of the most potent TSC2 cDNA to the heart did not perturb cardiac development. However, the level of cardiomyocyte DNA synthesis in adult transgenic mice was elevated >35-fold during isoproterenol-induced hypertrophy compared with their nontransgenic siblings. These results suggest that alteration of TSC2 gene activity in combination with beta-adrenergic stimulation can reactivate the cell cycle in a limited number of terminally differentiated adult cardiomyocytes.
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Affiliation(s)
- K B Pasumarthi
- Wells Center for Pediatric Research and Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, USA
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Nakajima H, Nakajima HO, Salcher O, Dittiè AS, Dembowsky K, Jing S, Field LJ. Atrial but not ventricular fibrosis in mice expressing a mutant transforming growth factor-beta(1) transgene in the heart. Circ Res 2000; 86:571-9. [PMID: 10720419 DOI: 10.1161/01.res.86.5.571] [Citation(s) in RCA: 178] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Increased transforming growth factor (TGF)-beta(1) activity has been observed during pathologic cardiac remodeling in a variety of animal models. In an effort to establish a causal role of TGF-beta(1) in this process, transgenic mice with elevated levels of active myocardial TGF-beta(1) were generated. The cardiac-restricted alpha-myosin heavy chain promoter was used to target expression of a mutant TGF-beta(1) cDNA harboring a cysteine-to-serine substitution at amino acid residue 33. This alteration blocks covalent tethering of the TGF-beta(1) latent complex to the extracellular matrix, thereby rendering a large proportion (>60%) of the transgene-encoded TGF-beta(1) constitutively active. Although similar levels of active TGF-beta(1) were present in the transgenic atria and ventricles, overt fibrosis was observed only in the atria. Surprisingly, increased active TGF-beta(1) levels inhibited ventricular fibroblast DNA synthesis in uninjured hearts and delayed wound healing after myocardial injury. These data suggest that increased TGF-beta(1) activity by itself is insufficient to promote ventricular fibrosis in the adult mouse ventricle.
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Affiliation(s)
- H Nakajima
- Herman B. Wells Center for Pediatric Research and Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, Ind, USA
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46
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Abstract
Thymoma is the most common tumor of the anterior-superior mediastinum. We have identified a line of transgenic mice which spontaneously and heritably develop thymomas at a very high penetrance. The available data suggest that thymoma formation in these mice results as a consequence of transgene insertional mutagenesis. Immune histologic analyses indicate that the thymomas are of epithelial cell origin. Survival studies indicate that tumor progression is more aggressive in females as compared to males (73.9 vs 41.7% mortality at 20 weeks of age, respectively). Fluorescent in situ hybridizations have localized the transgene integration site to the F2-G region of mouse chromosome 2. Translocation encompassing the syntenic region in humans has been implicated in lympho-epithelial thymoma. These animals may constitute a useful resource for the identification of gene(s) which participate in thymoma progression, as well as a model system for screening anti-thymoma therapeutic agents.
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Affiliation(s)
- H Nakajima
- Herman B Wells Center for Pediatric Research Indiana University School of Medicine, Riley Hospital, 702 Barnhill Drive, Room 2600, Indianapolis, Indiana, IN 46202-5225, USA
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Yue Y, Su J, Cerretti DP, Fox GM, Jing S, Zhou R. Selective inhibition of spinal cord neurite outgrowth and cell survival by the Eph family ligand ephrin-A5. J Neurosci 1999; 19:10026-35. [PMID: 10559410 PMCID: PMC6782947] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
The Eph family tyrosine kinase receptors and their ligands, the ephrins, have been shown to play critical roles in cell migration, tissue morphogenesis, and axonal guidance in many different systems. However, their function in the spinal cord has not been examined carefully. We showed in this study that several Eph receptors, including EphA3, Eph A4, and Eph A5, are expressed in the ventral spinal cord in partially overlapping patterns, with EphA5 exhibiting the most widespread transcription in the entire ventral spinal cord during early development. Complementary to the receptor expression, a ligand of these receptors, ephrin-A5, is transcribed in the dorsal half of the spinal cord. Consistent with the spatial location of receptor expression, the ligand selectively inhibits neurite outgrowth and induces cell death of the ventral, but not the dorsal, spinal cord neurons. These observations suggest that interactions between the Eph family receptors and ligands exerts negative influences on ventral spinal cord neurons and thus may play important roles in regulating morphogenesis and axon guidance in the spinal cord.
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Affiliation(s)
- Y Yue
- Laboratory for Cancer Research, College of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
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48
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Prasolova LA, Jing S. [The coat color mutation in silver foxes (Vulpes vulpes): morphology of guard hairs]. Genetika 1999; 35:1269-1273. [PMID: 10576059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The structure of guard hairs was analyzed in the mottling mutants of silver foxes. The mottling mutation occurred in the population of silver foxes which has been subjected to domestication. Hairs from the mottling areas were shown to have the following distinctions from silvery-black hairs: the lack of clear grana-shaft separation, a lesser thickness and length, another shape and pattern of guard-hair scales, another thickness ratio between cortical and medullar layers, a lesser number of melanocytes in hair bulbs, and a lesser number of dendritic processes in melanocytes. Putative mechanisms underlying the phenotypic effect of the mutant gene that controls mottling are suggested.
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Affiliation(s)
- L A Prasolova
- Institute of Cytology and Genetics, Russian Academy of Sciences, Novosibirsk, Russia.
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Gao F, Zhang W, Jing S, Liu Y, Zhang B. [Detection of telomerase activity in gastric cancer and adjacent tissues]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1999; 21:298-301. [PMID: 12567454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To study the telomerase activity in chinese gastric cancer and their adjacent tissues and to explore the possibility of telomerase as a tumor biological marker. METHODS Telomerase activity was analyzed in 42 primary gastric cancers and their adjacent tissues and 1 benign gastric lesion by a PCR-based telomerase repeat amplification protocol assay. RESULTS The result showed 88.1% (37/42) gastric cancerous specimens displayed telomerase activity. However, only 2 of 42 tissue samples adjacent to the gastric cancer showed telomerase activity. However our results indicated that 1 benign gastric lesion sample expressed telomerase activity. CONCLUSIONS The results indicated that the detection of telomerase activity might be a useful method in the diagnosis of gastric cancer.
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Affiliation(s)
- F Gao
- Department of Abdominal Surgery and Centre of Tumor Biology, Cancer Hospital, CAMS and PUMC, Beijing 100021
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50
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Affiliation(s)
- J Yao
- Hangzhou City Plastic Surgery Hospital, Zhejiang Province, People's Republic of China
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