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Zhou JQ, Zeng LH, Li CT, He DH, Zhao HD, Xu YN, Jin ZT, Gao C. Brain organoids are new tool for drug screening of neurological diseases. Neural Regen Res 2023; 18:1884-1889. [PMID: 36926704 DOI: 10.4103/1673-5374.367983] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
At the level of in vitro drug screening, the development of a phenotypic analysis system with high-content screening at the core provides a strong platform to support high-throughput drug screening. There are few systematic reports on brain organoids, as a new three-dimensional in vitro model, in terms of model stability, key phenotypic fingerprint, and drug screening schemes, and particularly regarding the development of screening strategies for massive numbers of traditional Chinese medicine monomers. This paper reviews the development of brain organoids and the advantages of brain organoids over induced neurons or cells in simulated diseases. The paper also highlights the prospects from model stability, induction criteria of brain organoids, and the screening schemes of brain organoids based on the characteristics of brain organoids and the application and development of a high-content screening system.
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Affiliation(s)
- Jin-Qi Zhou
- School of Medicine, Institute of Brain and Cognitive Science; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang Province, China
| | - Ling-Hui Zeng
- School of Medicine, Institute of Brain and Cognitive Science; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang Province, China
| | - Chen-Tao Li
- School of Medicine, Institute of Brain and Cognitive Science; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang Province, China
| | - Da-Hong He
- School of Medicine, Institute of Brain and Cognitive Science; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang Province, China
| | - Hao-Duo Zhao
- School of Medicine, Institute of Brain and Cognitive Science; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang Province, China
| | - Yan-Nan Xu
- School of Medicine, Institute of Brain and Cognitive Science; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang Province, China
| | - Zi-Tian Jin
- School of Medicine, Institute of Brain and Cognitive Science; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang Province, China
| | - Chong Gao
- School of Medicine, Institute of Brain and Cognitive Science; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang Province, China
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Xu YN, Xu W, Zhang X, Wang DY, Zheng XR, Liu W, Chen JM, Chen GF, Liu CH, Liu P, Mu YP. BM-MSCs overexpressing the Numb enhance the therapeutic effect on cholestatic liver fibrosis by inhibiting the ductular reaction. Stem Cell Res Ther 2023; 14:45. [PMID: 36941658 PMCID: PMC10029310 DOI: 10.1186/s13287-023-03276-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 03/09/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND Cholestatic liver fibrosis (CLF) is caused by inflammatory destruction of the intrahepatic bile duct and abnormal proliferation of the small bile duct after cholestasis. Activation of the Notch signaling pathway is required for hepatic stem cells to differentiate into cholangiocytes during the pathogenesis of CLF. Our previous research found that the expression of the Numb protein, a negative regulator of Notch signaling, was significantly reduced in the livers of patients with primary biliary cholangitis and CLF rats. However, the relationship between the Numb gene and CLF is largely unclear. In this study, we investigated the role of the Numb gene in the treatment of bile duct ligation (BDL)-induced CLF. METHODS In vivo, bone marrow-derived mesenchymal stem cells (BM-MSCs) with Numb gene overexpression or knockdown obtained using lentivirus transfection were transplanted into the livers of rats with BDL-induced CLF. The effects of the Numb gene on stem cell differentiation and CLF were evaluated by performing histology, tests of liver function, and measurements of liver hydroxyproline, cytokine gene and protein levels. In vitro, the Numb gene was overexpressed or knocked down in the WB-F344 cell line by lentivirus transfection, Then, cells were subjected immunofluorescence staining and the detection of mRNA levels of related factors, which provided further evidence supporting the results from in vivo experiments. RESULTS BM-MSCs overexpressing the Numb gene differentiated into hepatocytes, thereby inhibiting CLF progression. Conversely, BM-MSCs with Numb knockdown differentiated into biliary epithelial cells (BECs), thereby promoting the ductular reaction (DR) and the progression of CLF. In addition, we confirmed that knockdown of Numb in sodium butyrate-treated WB-F344 cells aggravated WB-F344 cell differentiation into BECs, while overexpression of Numb inhibited this process. CONCLUSIONS The transplantation of BM-MSCs overexpressing Numb may be a useful new treatment strategy for CLF.
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Affiliation(s)
- Yan-Nan Xu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Wen Xu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Xu Zhang
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Dan-Yang Wang
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Xin-Rui Zheng
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Wei Liu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Jia-Mei Chen
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Gao-Feng Chen
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Cheng-Hai Liu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China
| | - Ping Liu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China.
| | - Yong-Ping Mu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Liver Diseases, Shanghai University of TCM, Key Laboratory of Liver and Kidney Disease of the Ministry of Education, Clinical Key Laboratory of TCM of Shanghai, 528, Zhangheng Road, Pudong District, Shanghai, 201203, China.
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Chen BJ, Li J, Wang JD, Cheng YS, Xu YN, Xue M. [Parotid nuclear protein in testis midline carcinoma: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:510-513. [PMID: 34011009 DOI: 10.3760/cma.j.cn115330-20201103-00853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- B J Chen
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - J Li
- Department of Oral Pathology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - J D Wang
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Y S Cheng
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200085, China
| | - Y N Xu
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - M Xue
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200085, China
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Xu W, Xu YN, Zhang X, Xu Y, Jian X, Chen JM, Chen GF, Zhang H, Liu P, Mu YP. Hepatic stem cell Numb gene is a potential target of Huang Qi Decoction against cholestatic liver fibrosis. Sci Rep 2020; 10:17486. [PMID: 33060633 PMCID: PMC7566460 DOI: 10.1038/s41598-020-74324-1] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/30/2020] [Indexed: 12/13/2022] Open
Abstract
Numb is a negative regulator of Notch signal pathway. Previous study has demonstrated that Notch signal pathway activation is required for hepatic progenitor cell (HPC) differentiating into cholangiocytes in cholestatic liver fibrosis (CLF), and Huang Qi Decoction (HQD) could prevent CLF through inhibition of the Notch signal pathway. However, the role of Numb in HQD against CLF is yet unclear. Thus, CLF rats transplanted into rat bone marrow-derived mesenchymal stem cells with knocked down Numb gene (BMSCNumb-KD) were treated with HQD. Simultaneously, Numb gene knockdown was also performed in WB-F344 cell line and then treated with refined HQD in vitro. In vivo study revealed that liver fibrosis was inhibited by HQD plus BMSCNumb-KD treatment, while Hyp content in liver tissue, the gene and protein expression of α-SMA, gene expression of Col I, TNF-α, and TGF-β1 were increased compared to that in HQD group. Furthermore, Notch signal pathway was inhibited by HQD plus BMSCNumb-KD, while the protein expression of Numb was decreased and RBP-Jκ and Hes1 was increased compared to that in HQD group. In vitro, HQD reduced the differentiation of WB-F344 cells into cholangiocyte phenotype, while this effect was attenuated after Numb-knockdown. This study highlights that the absence of hepatic stem cell Numb gene decreases effect of HQD against CLF, which give rise the conclusion that Numb might be a potential target for HQD against CLF.
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Affiliation(s)
- Wen Xu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China.,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China
| | - Yan-Nan Xu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China.,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China
| | - Xu Zhang
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China.,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China
| | - Ying Xu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China.,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China
| | - Xun Jian
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China.,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China
| | - Jia-Mei Chen
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China.,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China
| | - Gao-Feng Chen
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China.,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China
| | - Hua Zhang
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China.,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China
| | - Ping Liu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China. .,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China. .,E-Institute of Shanghai Municipal Education Commission, Shanghai University of TCM, Shanghai, People's Republic of China.
| | - Yong-Ping Mu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM); Institute of Liver Diseases, Key Laboratory of Liver and Kidney Diseases, Shanghai University of TCM, 528, Zhangheng Road, Pudong district, Shanghai, 201203, People's Republic of China. .,Shanghai Key Laboratory of TCM, Shanghai, People's Republic of China.
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Li XY, Xu YN, Chen BJ, Wang JD. [The effect and mechanism of 2-methoxyestradiol on human laryngeal papilloma cell line]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:945-950. [PMID: 31623040 DOI: 10.13201/j.issn.1001-1781.2019.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Indexed: 11/12/2022]
Abstract
Objective:To explore the signal pathway that mediates the effect of 2-methoxyestradiol(2ME2) on human laryngeal papilloma cell line, in terms of cell proliferation and neovascularization. Method:HIF-1α expression of human laryngeal papilloma cell line(Hs840. T) was interfered using siRNA, and the cells were then processed by 2ME2 in two concentrations. RT-PCR and ELISA were performed to detect the difference of HIF-1α in cells with normal or lower HIF-1α mRNA level, with ELISA test of excretory VEGF level and CCK8 test of cell viability. Result:The IC50of 2ME2 in Hs840. T was 0.309 μmol/L in terms of the inhibition effect of cell proliferation(P<0.01). Baseline level of intracellular HIF-1α was detectable, and procession of Hs840. T cells by 2ME2 of 0.4 μmol/L inhibited the transcription and expression of HIF-1α by(76.8±2.0)% and(68.6±3.5)% [vs blank group(100.0±2.7)% and(100.0±6.9)%, P<0.01]. VEGF excretion decreased to(50.8±2.1) and(28.1±4.0)% [vs blank group(100.0±3.1)%, P<0.01]after procession by 2ME2 of 0.2 μmol/L and 0.4 μmol/L. After the successful interference of HIF-1α by siRNA, the inhibition effect on cell proliferation by 2ME2 of 0.4 μmol/L decreased to(51.5±3.8)% [vs control group(65.7±1.7)%, P<0.01]. siRNA interference of HIF-1α lead to a decrease of HIF-α mRNA and protein level to(16.3±0.9)% and(7.4±0.8)% [vs cells not interfered(76.8±2.0)% vs(68.6±3.5)%, P<0.01]. Secretory VEGF dropped to(41.0±2.9)% [vs cells not interfered(28.1±4.0)%, P<0.05]. Conclusion:2ME2 has a significant inhibitory effect on human laryngeal cell line. The inhibition of cell proliferation was mediated by a lower level of HIF-1α and therefore lower VEGF. 2ME2 might serve as a novel potential therapy for patients of recurrent respiratory papillomatosis.
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Affiliation(s)
- X Y Li
- Department of Head and Neck Surgery,Renji Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai,200001,China
| | - Y N Xu
- Department of Head and Neck Surgery,Renji Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai,200001,China
| | - B J Chen
- Department of Head and Neck Surgery,Renji Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai,200001,China
| | - J D Wang
- Department of Head and Neck Surgery,Renji Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai,200001,China
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Fei MJ, Xu YN, Wang JD. [The expression and clinical progression of androgen, estrogen and prolactin receptor in laryngeal squamous cell carcinoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:190-195. [PMID: 29775019 DOI: 10.13201/j.issn.1001-1781.2018.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to analyze the different expression and function of androgen receptors (AR) and estrogen receptor (ER-α) in laryngeal squamous cell carcinoma (LSCC). In combination with the expression of prolactin receptor (PRLR), we analyzed the prognostic impact of three receptors on the laryngeal carcinoma. Method:In this study, immunohistochemistry and reverse transcription polymerase chain reaction (RT-PC) analysis were performed on the tumor tissues and adjacent normal tissues in 112 LSCC patients (95 males and 17 females). We found that hormone receptor expression is closely related to the clinical tumor lesions and overall survival data. Result:The expression of AR, ER-α and PRLR in tumor tissues were much higher than those in adjacent normal tissues (P>0.05) at both protein and mRNA levels. The higher PRLR level indicate poor survival in LSCC patients (P=0.02), while higher ER-α expression could influence the survival with considerable trend toward significance (P=0.06). Furthermore, the higher expression of ER-α in tumours were corresponding with PRLR cytoplasmic higher level expression (r=0.802, P=0.04). This mutual promoted effect between ER-α and PRLR possibly suggests potential mechanisms among those sex related hormone receptors in laryngeal cancer. Conclusion:It has become increasingly credible that the sex related hormone receptors play an important role in the development of LSCC.
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Affiliation(s)
- M J Fei
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, China
| | - Y N Xu
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, China
| | - J D Wang
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, China
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Fei MJ, Xu YN, Wang JD. [Preliminary findings for metabolite profiles of papillary thyroid carcinoma and laryngeal squamous cell carcinoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1561-1565. [PMID: 29797950 DOI: 10.13201/j.issn.1001-1781.2017.20.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Indexed: 11/12/2022]
Abstract
Objective:To identify distinct metabolite profiles of papillary thyroid cancer (PTC) and laryngeal squamous cell carcinoma (LSCC).Method:Tumor and adjacent non-tumor specimens were collected from 57 PTC and 33 LSCC patients. Distinct metabolite profiles of tissues were examined using a combination of gas chromatography-time-of-flight mass spectrometry and ultra-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry. The data were analyzed with multivariate statistical analysis to compare the distinct metabolite profiles and related pathways of these three tumors.Result:A panel of 46 and 41 differentially expressed metabolites were identified in tumor and adjacent non-tumor tissues of PTC and LSCC, respectively. Increased glycolysis, amino acids metabolism, one carbon metabolism and tryptophan metabolism were found in these two types of tumor tissues compared to adjacent non tumor tissues. Purine and pyrimidine metabolism was significantly elevated in PTC and LSCC tumor tissues, while taurine and hypotaurine were only higher in PTC tumor tissues. The fatty acid metabolism was detected at lower level in both PTC and LSCC tumor tissue.Conclusion:PTC and LSCC tumor tissues not only have common metabolic signatures characterized by increased glycolysis, amino acids metabolism, one carbon metabolism and tryptophan metabolism, but also have distinct metabolic signatures. It is helpful to understand the nature of these two tumors.
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Affiliation(s)
- M J Fei
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, China
| | - Y N Xu
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, China
| | - J D Wang
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, China
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Xu L, Xu YN, Wang JD. [Factors for lymph node metastasis and survival rate in papillary thyroid microcarcinoma: from a large cohort of 3 607 cases series]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:267-272. [PMID: 28441803 DOI: 10.3760/cma.j.issn.1673-0860.2017.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate high-risk factors for lymph node metastasis (LNM) and 10-year survival rate in patients with papillary thyroid microcarcinoma (PTMC). Methods: We retrospectively analyzed the clinical data of 3 607 patients with PTMC received surgery in our hospital from January 2005 to December 2015. Univariate and multivariate analyses were performed to identify the factors associated with metastasis and 10-year survival rate of the patients was calculated. Results: The patients accepted an average follow-up of 68 months, with follow-up from 18 to 138 months. Total LNM rate in the 3 607 patients with PTMC was 17.13%. Central lymph node metastasis rate was 16.86%, which was related to gender (males 21.89% vs females 15.26%, P<0.01), age (<45 years old 24.44% vs ≥45 years old 11.96%, P<0.01), tumor diameter (P<0.01) and multifocality (P<0.01). Lateral lymph node metastasis rate was 1.05%, which was related to age (<45 vs ≥45, P<0.01) and tumor diameter (P<0.01). The 10-year-survival rate was 93.0% and 10-year recurrence-free survival rate was 87.5%. Conclusion: PTMC may metastasize to cervical lymph node, especially in males, with age younger than 45, multifocal tumors and maximal tumor diameter larger than 0.7 cm. There was no significant correlation between these clinical features associated with LNM and the 10-year survival rate.
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Affiliation(s)
- L Xu
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
| | - Y N Xu
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
| | - J D Wang
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
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Xu YN, Li J, Huang JY, Zhu C, Mao CJ, Shen Y, Liu CF. [Effect of obstructive sleep apnea on sleep architecture of acute ischemic stroke patients]. Zhonghua Yi Xue Za Zhi 2017; 97:920-924. [PMID: 28355753 DOI: 10.3760/cma.j.issn.0376-2491.2017.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of obstructive sleep apnea (OSA) on sleep architecture in acute ischemic stroke (AIS) patients. Methods: Seventy AIS patients with polysomnography examination from June 2014 to April 2016 were included in the Second Affiliated Hospital of Soochow University. Twenty-seven healthy controls during the same period were chosen as control group. According to apnea-hypopnea index (AHI), AIS patients were divided into AIS group (AHI<5/h) and AIS+ OSA group (AHI≥5/h). Their general conditions, Neurological function defect (national institutes of health stroke scale, NIHSS) on admission and at discharge and self-care ability (modified Rankin Scale, mRS) at discharge and 3 months later (mRS score <2 reflected good prognosis, and mRS score≥2 reflected unfavorable prognosis) were collected. Results: Fifty-two patients (74.3%) had OSA in total seventy AIS patients. Total sleep time (TST) was significantly shorter and sleep efficiency (SE) was lower in AIS group than the control group (P=0.007, 0.008, respectively). AIS+ OSA group had longer non-rapid eye movement (NREM)1 than control group [24.9(21.3) vs 14.3(10.6), P=0.044]. Compared with AIS group, AIS+ OSA group had shorter NREM3 [13.0(13.2) vs 19.6(12.8), P=0.039]. There was no significant difference between the infarct location of AIS group and AIS+ OSA group. However, AIS+ OSA group had higher mRS score observed at 3 months through follow-up visit than AIS group (P=0.027). Spearman correlation analysis showed a positive correlation between unfavorable prognosis of stroke at 3 months and atrial fibrillation, the oxygen desaturation index (ODI), percentage of oxygen saturation <90% of total recording time (TS90%), AHI, the longest time of apnea and hypopnea, respiratory related microarousal and NIHSS, while a negative correlation between unfavorable prognosis of stroke and NREM3, lowest nocturnal oxygen saturation (L-SaO(2)). On Logistic analysis, the unfavorable prognosis was independently predicted by AHI and NIHSS. Conclusions: Sleep architecture of cerebral infarction patients are disturbed with its characteristic of shorter total sleep time and lower sleep efficiency. Cerebral infarction patients with OSA have longer NREM1 and shorter NREM3.
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Affiliation(s)
- Y N Xu
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Lv D, Yang H, Xu YN, Zou J, Zhu J, Xiao H, Zheng YT. [Quality of life analysis of teachers in a primary school in Chengdu]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1385-1387. [PMID: 29798463 DOI: 10.13201/j.issn.1001-1781.2016.17.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Indexed: 02/05/2023]
Abstract
Objective:To investigate the prevalence of voice disorder and quality of life in the primary school teachers in a certain district of Chengduand examine the correlation between two voice-specific questionnaires.Method:Random sampling survey included 389 teachers from a certain district of Chengdu.Twelve item general health questionnaire(GHQ-12),voice handicap index 10(VHI-10) and voice-related quality of life (V-RQOL) were investigated and routine examination of throat with electronic fiber laryngoscopy were carried out for teachers.Result:There were 189 teachers who had voice disorders(voice disorders group),and 200 teachers who did not have voice disorders(control group).②The total score's difference of V-RQOL and VHI-10,functional(F) and emotion(E) dimensions in VHI-10 between two groups were statistically significant(P<0.05),however,there were no statistically significant difference of GHQ-12 between two groups. The total score of GHQ-12 was positively correlated with VHI-10(r=0.194,P <0.05),while the total score of V-RQOL was negatively correlated with GHQ-12(r=-0.209,P<0.05) and VHI-10 (r=-0.586, P <0.05).Conclusion:Voice disorders can affect teachers' psychology and voice related quality of life.Although the VHI-10 and V-RQOL had correlation,the correlation is not strong.So it is recommended combine VHI-10 and V-RQOL when the quality of life of voice disorders is evaluated.
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Affiliation(s)
- D Lv
- Department of Otorhinolaryngology-Head and Neck Surgery,West China Hospital,Sichuan University,Chengdu,610041,China
| | - H Yang
- Department of Otorhinolaryngology-Head and Neck Surgery,West China Hospital,Sichuan University,Chengdu,610041,China
| | - Y N Xu
- Department of Science and Education,Women and Children's Hospital of Ningbo
| | - J Zou
- Department of Otorhinolaryngology-Head and Neck Surgery,West China Hospital,Sichuan University,Chengdu,610041,China
| | - J Zhu
- Department of Otolaryngology,Tianfu New Area People's Hospital
| | - H Xiao
- Department of Otorhinolaryngology-Head and Neck Surgery,West China Hospital,Sichuan University,Chengdu,610041,China
| | - Y T Zheng
- Department of Otorhinolaryngology-Head and Neck Surgery,West China Hospital,Sichuan University,Chengdu,610041,China
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Yan YX, Zhao JX, Han S, Zhou NJ, Jia ZQ, Yao SJ, Cao CL, Wang YL, Xu YN, Zhao J, Yan YL, Cui HX. Tetramethylpyrazine induces SH-SY5Y cell differentiation toward the neuronal phenotype through activation of the PI3K/Akt/Sp1/TopoIIβ pathway. Eur J Cell Biol 2015; 94:626-41. [PMID: 26518113 DOI: 10.1016/j.ejcb.2015.09.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [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: 04/06/2015] [Revised: 09/09/2015] [Accepted: 09/30/2015] [Indexed: 12/11/2022] Open
Abstract
Tetramethylpyrazine (TMP) is an active compound extracted from the traditional Chinese medicinal herb Chuanxiong. Previously, we have shown that TMP induces human SH-SY5Y neuroblastoma cell differentiation toward the neuronal phenotype by targeting topoisomeraseIIβ (TopoIIβ), a protein implicated in neural development. In the present study, we aimed to elucidate whether the transcriptional factors specificity protein 1 (Sp1) and nuclear factor Y (NF-Y), in addition to the upstream signaling pathways ERK1/2 and PI3K/Akt, are involved in modulating TopoIIβ expression in the neuronal differentiation process. We demonstrated that SH-SY5Y cells treated with TMP (80μM) terminally differentiated into neurons, characterized by increased neuronal markers, tubulin βIII and microtubule associated protein 2 (MAP2), and increased neurite outgrowth, with no negative effect on cell survival. TMP also increased the expression of TopoIIβ, which was accompanied by increased expression of Sp1 in the differentiated neuron-like cells, whereas NF-Y protein levels remained unchanged following the differentiation progression. We also found that the phosphorylation level of Akt, but not ERK1/2, was significantly increased as a result of TMP stimulation. Furthermore, as established by chromatin immunoprecipitation (ChIP) assay, activation of the PI3K/Akt pathway increased Sp1 binding to the promoter of the TopoIIβ gene. Blockage of PI3K/Akt was shown to lead to subsequent inhibition of TopoIIβ expression and neuronal differentiation. Collectively, the results indicate that the PI3K/Akt/Sp1/TopoIIβ signaling pathway is necessary for TMP-induced neuronal differentiation. Our findings offer mechanistic insights into understanding the upstream regulation of TopoIIβ in neuronal differentiation, and suggest potential applications of TMP both in neuroscience research and clinical practice to treat relevant diseases of the nervous system.
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Affiliation(s)
- Yong-Xin Yan
- Department of Cell Biology, Hebei Medical University, Hebei, PR China
| | - Jun-Xia Zhao
- Department of Cell Biology, Hebei Medical University, Hebei, PR China
| | - Shuo Han
- Department of Human Anatomy, Hebei Medical University, Hebei, PR China
| | - Na-Jing Zhou
- Department of Cell Biology, Hebei Medical University, Hebei, PR China
| | - Zhi-Qiang Jia
- Department of Cell Biology, Hebei Medical University, Hebei, PR China
| | - Sheng-Jie Yao
- Department of Cell Biology, Hebei Medical University, Hebei, PR China
| | - Cui-Li Cao
- Department of Human Anatomy, Hebei Medical University, Hebei, PR China
| | - Yan-Ling Wang
- Department of Cell Biology, Hebei Medical University, Hebei, PR China
| | - Yan-Nan Xu
- Department of Cell Biology, Hebei Medical University, Hebei, PR China
| | - Juan Zhao
- Department of Cell Biology, Hebei Medical University, Hebei, PR China
| | - Yun-Li Yan
- Department of Cell Biology, Hebei Medical University, Hebei, PR China.
| | - Hui-Xian Cui
- Department of Human Anatomy, Hebei Medical University, Hebei, PR China; Hebei Key Laboratory for Brain Aging and Cognitive Neuroscience, Hebei, PR China
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12
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Abstract
Three microsurgical techniques, i.e., electric cauterized vein patch (ECVP), electric cauterized vein segment (ECVS), and electric cauterized muscular cavity (ECMC), were employed to produce an ideal animal model of traumatic pseudoaneurysm (TPA). In this paper, 108 cases of TPAs were produced in rabbit femoral arteries. The successful rates of these microsurgical techniques, proved by angiography, autopsy in vivo, and histological examination, were 5.5, 16.7, and 88.9%, respectively. The successful rate of ECMC, with the merits of simple operation, a narrow neck but giant size of TPA which rarely ruptured, and the pulsatile mass occurring as early as 4 to 11 days after operation, was much higher than that of ECVP and ECVS (P < 0.01). By this reliable method of ECMC, the pathogenesis of TPA was observed as the following: the arterial wall was injured and partly ruptured, then the escaped blood was confined by fibrous connective tissue near the arterial opening. As a result, a located hematoma without any pulsatile mass and vascular systolic murmur formed. When a cavity occurred in the hematoma a few days later it gradually enlarged till the clot which plugged the arterial opening became so thin that arterial blood flowed into the cavity to form a pulsating hematoma. So, a pulsatile mass with vascular systolic murmur can be observed.
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Affiliation(s)
- H T Sun
- Department of Orthopaedics, Meihuayuan, Guangzhou, China
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13
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Qu ZC, Shen DL, Xu YN, Tan JZ, Hull R. [Western blotting of RStV gene products in rice and insects]. Yi Chuan Xue Bao 2000; 26:512-7. [PMID: 10665229] [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: 02/15/2023]
Abstract
The NS3 and NC protein genes encoded by RNA3 of RStV, the NCP and NSvc4 protein genes encoded by RNA4 were subcloned into the E. coli expression vector pGEX3X to express four groups of fusion protein under IPTG induction. These fusion proteins were used to immunize rabbits to raise antisera. The antisera against the E. coli-expressed proteins were available for probing the presence of the viral gene products in both rice plant and insect hosts. The expected gene products can be probed only in diseased rice plant with NCP antiserum and the corresponding products detected in both plant and RStV particle preparation with NC antiserum. The viral gene products probed by NS3 and NSvc4 antisera were different from the expected ones in size.
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Affiliation(s)
- Z C Qu
- Institute of Genetics, Fudan University, Shanghai
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14
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Abstract
A new cerebroside, named Aralia cerebroside (1), was isolated from the root bark of Aralia elata. The structure of 1 was determined to be 1-O-beta-D-glucopyranosyl-(2S,3S,4R, 8E)-2-[(2'R)-2'-hydroxypalmitoylamino]-8-octadecene-1,3,4-triol on the basis of physicochemical and spectroscopic studies.
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Affiliation(s)
- SS Kang
- Natural Products Research Institute, Seoul National University, Seoul 110-460, Korea, Department of Organic Chemistry, Shenyang Pharmaceutical University, Shenyang 110015, China, and College of Science and Technology, Sangji University, Won
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Ching WY, Xu YN, Gu Z. Structure and properties of microporous titanosilicate determined by first-principles calculations. Phys Rev B Condens Matter 1996; 54:R15585-R15589. [PMID: 9985708 DOI: 10.1103/physrevb.54.r15585] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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16
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Ching WY, Xu YN, French RH. First-principles investigation of the optical properties of crystalline poly(di-n-hexylsilane). Phys Rev B Condens Matter 1996; 54:13546-13550. [PMID: 9985264 DOI: 10.1103/physrevb.54.13546] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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17
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Xu YN, Ching WY, Jean YC, Lou Y. First-principles calculation of the electronic and optical properties of the organic superconductor kappa -(BEDT-TTF)2Cu(NCS)2. Phys Rev B Condens Matter 1995; 52:12946-12950. [PMID: 9980466 DOI: 10.1103/physrevb.52.12946] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Xu YN, Ching WY. Electronic structure and optical properties of alpha and beta phases of silicon nitride, silicon oxynitride, and with comparison to silicon dioxide. Phys Rev B Condens Matter 1995; 51:17379-17389. [PMID: 9978764 DOI: 10.1103/physrevb.51.17379] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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19
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Xu YN, Ching WY. Electronic bonding and optical properties of the H2-H2O phase at high pressure. Phys Rev B Condens Matter 1994; 50:17709-17712. [PMID: 9976197 DOI: 10.1103/physrevb.50.17709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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20
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Ching WY, Gu ZQ, Xu YN. First-principles calculation of the electronic and optical properties of LiNbO3. Phys Rev B Condens Matter 1994; 50:1992-1995. [PMID: 9976399 DOI: 10.1103/physrevb.50.1992] [Citation(s) in RCA: 80] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Xu YN, Ching WY, French RH. Electronic structure and interatomic bonding of crystalline beta -BaB2O4 with comparison to LiB3O5. Phys Rev B Condens Matter 1993; 48:17695-17702. [PMID: 10008399 DOI: 10.1103/physrevb.48.17695] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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24
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Huang MZ, Xu YN, Ching WY. Pressure dependence of the band structure, density of states, Fermi surfaces, and optical properties of superconducting K3C60. Phys Rev B Condens Matter 1993; 47:8249-8259. [PMID: 10004837 DOI: 10.1103/physrevb.47.8249] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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25
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Huang MZ, Xu YN, Ching WY. Electronic structures of K3C60, RbK2C60, Rb2KC60, Rb3C60, Rb2CsC60, and Cs3C60 crystals. Phys Rev B Condens Matter 1992; 46:6572-6577. [PMID: 10002346 DOI: 10.1103/physrevb.46.6572] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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26
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Xu YN, Huang MZ, Ching WY. Theoretical determination of the pressure dependence of the electronic and the optical properties of fcc C60. Phys Rev B Condens Matter 1992; 46:4241-4245. [PMID: 10004156 DOI: 10.1103/physrevb.46.4241] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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27
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28
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Li D, Xu YN, Ching WY. Electronic structures, total energies, and optical properties of alpha -rhombohedral B12 and alpha -tetragonal B50 crystals. Phys Rev B Condens Matter 1992; 45:5895-5905. [PMID: 10000329 DOI: 10.1103/physrevb.45.5895] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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29
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Xu YN, Huang MZ, Ching WY. Optical properties of superconducting K3C60 and insulating K6C60. Phys Rev B Condens Matter 1991; 44:13171-13174. [PMID: 9999518 DOI: 10.1103/physrevb.44.13171] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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30
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Xu YN, Ching WY. Calculation of ground-state and optical properties of boron nitrides in the hexagonal, cubic, and wurtzite structures. Phys Rev B Condens Matter 1991; 44:7787-7798. [PMID: 9998708 DOI: 10.1103/physrevb.44.7787] [Citation(s) in RCA: 111] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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31
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Ching WY, Huang MZ, Xu YN, Harter WG, Chan FT. First-principles calculation of optical properties of C60 in the fcc lattice. Phys Rev Lett 1991; 67:2045-2048. [PMID: 10044321 DOI: 10.1103/physrevlett.67.2045] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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32
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33
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Xu YN, Huang JG. [Hyperbaric oxygen treatment for cystoid macular edema secondary to retinal vein occlusion]. Zhonghua Yan Ke Za Zhi 1991; 27:216-8. [PMID: 1935447] [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: 12/29/2022]
Abstract
A prospective study was made to estimate the effect of hyperbaric oxygen (HBO) on 14 eyes of cystoid macular edema (CME) secondary to retinal vein occlusion. The visual acuity was improved 2-6 lines (average 3.6 lines) after the treatment, while the control group of 12 cases showed little improvement. The therapeutic effect was stable, however, fluorescein angiography showed no leakage reduction from the perifoveal capillaries, or visual function was enhanced prior to eventual improvement in the fundus. Since HBO therapy has few contraindications nor side effects, it is an effective modality in the treatment of CME.
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Affiliation(s)
- Y N Xu
- Department of Ophthalmology, First Affiliated Hospital of Dalian Medical College
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34
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Ching WY, Zhao GL, Xu YN, Wong KW. Orbital-resolved partial density of states in YBa2Cu3O7. Phys Rev B Condens Matter 1991; 43:6159-6162. [PMID: 9998026 DOI: 10.1103/physrevb.43.6159] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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35
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Xu YN, Ching WY. Self-consistent band structures, charge distributions, and optical-absorption spectra in MgO, alpha -Al2O3, and MgAl2O4. Phys Rev B Condens Matter 1991; 43:4461-4472. [PMID: 9997799 DOI: 10.1103/physrevb.43.4461] [Citation(s) in RCA: 87] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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36
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Ching WY, Xu YN, Harmon BN, Ye J, Leung TC. Electronic structures of FeB, Fe2B, and Fe3B compounds studied using first-principles spin-polarized calculations. Phys Rev B Condens Matter 1990; 42:4460-4470. [PMID: 9995976 DOI: 10.1103/physrevb.42.4460] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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37
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38
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Zhong XF, Xu YN, Ching WY. Orthogonalized linear combinations of atomic orbitals. IV. Inclusion of relativistic corrections. Phys Rev B Condens Matter 1990; 41:10545-10552. [PMID: 9993463 DOI: 10.1103/physrevb.41.10545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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39
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40
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41
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Zhang YY, Xu YN, Peng SF, Zhang XY. [Comparison of the hybridization patterns obtained from labelled RNA with Southern blotted restriction fragments of DNAs from the rat liver and hepatoma]. Shi Yan Sheng Wu Xue Bao 1987; 20:47-52. [PMID: 2442926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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42
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Gu YD, Wu MM, Zheng YL, Li HR, Xu YN. Vascularized free sural nerve grafting. Chin Med J (Engl) 1985; 98:875-80. [PMID: 3938721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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43
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Xu YN. [An analysis of the therapeutic effects of 120 cases of lung cancer in the elderly]. Zhonghua Jie He He Hu Xi Xi Ji Bing Za Zhi 1985; 8:321-4, 372. [PMID: 3015519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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44
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Abstract
Since August 1980, a new technique of nerve grafting has been developed in our clinic. A free sural nerve graft, with its attached small saphenous vein arterialized, was used for repairing long segments of nerve defects. Experimental studies of this kind of nerve graft have proved the merits of this new technique. The same favorable results were then obtained in 14 patients, with 2 grafts failing because of vascular thrombosis. We have the impression that the shorter the time interval between the injury and the surgical repair, the better the result. In 2 patients with motor nerve injury, the motor function was well recovered when the operation was performed within 6 months after the injury, whereas none was recovered in those cases with an interval longer than 2 years.
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