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Zhao N, Gong TY, Wei ZC, Cong J, Liu ZH, Chen HY. [En1 promotes cell proliferation and migration via Hedgehog signaling pathway in esophageal squamous cell carcinoma]. Zhonghua Zhong Liu Za Zhi 2024; 46:99-107. [PMID: 38418183 DOI: 10.3760/cma.j.cn112152-20231026-00257] [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: 03/01/2024]
Abstract
Objective: To explore the function and mechanism of transcription factor En1 in esophageal squamous cell carcinoma (ESCC). Methods: The correlations of En1 with prognosis were analyzed using the overall survival data of 9 397 pan-cancer patients and progression-free survival data of 4 349 pan-cancer patients from The Cancer Genome Atlas (TCGA) database. The En1 expression data in 53 and 155 cases of ESCC and their paired adjacent tissues were from Gene Expression Omnibus (GEO) database and National Genomics Data Center-Genome Sequence Archive(NGDC-GSA)database. Lentivirus was used to generate En1 stable knockout cell lines KYSE180 and KYSE450. The proliferation ability of the cells was detected by cell counting kit 8 and clone formation assay. The migration ability of the cells was detected by Transwell assay. The effect of En1 on the proliferation of ESCC was detected by xenograft experiment in BALB/c-nu/nu mice. Real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) was used to detect the expressions of En1, glioma-associated oncogene family zinc finger 1 (GLI1), glioma-associated oncogene family zinc finger 2 (GLI2) and smoothened (SMO). Results: Pan-cancer data from TCGA showed that patients with low En1 expression had longer overall survival and progression-free survival than patients with high En1 expression (P< 0.001). Data from GEO and GSA databases also showed a high expression level of En1 in ESCC tissues compared with paired tissues (P<0.001). Proliferation was inhibited after knockout of En1 in KYSE180 and KYSE450 cells (P<0.001). The colony formation numbers decreased. The colony formation numbers of KYSE180 cells in the shEn1#1 group and the shEn1#2 group were 138.33±23.07 and 127.00±19.70, respectively, significantly lower than that of the shNC group 340.67±12.06 (P<0.001). The colony formation numbers of KYSE450 cells in the shEn1#1 group and the shEn1#2 group were 65.33±2.52 and 9.00±3.00, respectively, significantly lower than that of the shNC group 139.00±13.00 (P<0.001). The migration numbers was inhibited after knockout of En1 [the Transwell numbers of KYSE180 cells in the shEn1#1 group and the shEn1#2 group were 66.67±12.66 and 71.33±11.02, respectively, significantly lower than that of the shNC group 334.67±16.56 (P<0.001). The Transwell numbers of KYSE450 cells in the shEn1#1 group and the shEn1#2 group were 112.33±14.57 and 54.33±5.51, respectively, significantly lower than that of the shNC group 253.33±21.03 (P<0.001)]. Xenograft model showed a slower growth rate of shEn1#1 and shEn1#2 cell lines (P<0.001). The tumor weights of KYSE450 cells in the shEn1#1 group and the shEn1#2 group were (0.046±0.026)g and (0.047±0.025)g, respectively, significantly lower than that of the shNC group (0.130±0.038)g (P<0.001). After knockdown of En1, the relative expression levels of GLI1 in KYSE180 cells of the shEn1#1 group and the shEn1#2 group were 0.326±0.162 and 0.322±0.133, and the relative expression levels of GLI1 in KYSE450 cells of the shEn1#1 and shEn1#2 groups were 0.131±0.006 and 0.352±0.050, respectively, which were all lower than that in the shNC group (P<0.01). After knockdown of En1, overexpression of GLI1 attenuated the inhibitory effect of knockdown of En1 on cell proliferation (P<0.001), colony formation[the colony formation numbers of the shEn1#1-GLI1 group were 151.00±9.54, higher than 102.33±10.02 (P=0.004) of the shEn1#1-vector group] and migration [the migration numbers of the shEn1#1-GLI1 group were 193.67±10.07, higher than 109.33±11.50 (P<0.001) in the shEn1#1-vector group]. In clinical samples of ESCC, major regulatory factors of the Hedgehog pathway were up-regulated and the pathway was activated. Conclusion: En1 promotes the proliferation and migration of ESCC cells by regulating the Hedgehog pathway and can be used as a new potential target for targeted therapy of ESCC.
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Affiliation(s)
- N Zhao
- Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academic of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - T Y Gong
- Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academic of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z C Wei
- Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academic of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Cong
- Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academic of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z H Liu
- Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academic of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Y Chen
- Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academic of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Yang JD, Xue WJ, Wei ZC, Hou CQ, Li XY, Xu HH, Wu XL, Feng YH, Yin SK. [The association of renalase single-nucleotide polymorphisms rs2576178 and rs10887800 with hypertension in patients with obstructive sleep apnea]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:966-973. [PMID: 37840161 DOI: 10.3760/cma.j.cn115330-20221109-0067] [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: 10/17/2023]
Abstract
Objective: To evaluate the associations between the renalase single-nucleotide polymorphisms rs2576178 and rs10887800 and the risk of hypertension in OSA patients. Methods: A total of 3, 570 male OSA subjects diagnosed via standard polysomnography were included in this retrospective study. We recorded anthropometric, genomic, and polysomnographic parameters and blood pressure levels. All subjects were divided into four groups based on quartiles of the apnea-hypopnea index (AHI). The relationships between rs2576178 and rs10887800 and the risk of hypertension were evaluated using the binary logistic regression, and haplotype analysis. Results: In the bottom AHI quartile, rs10887800 was significantly associated with the risk of hypertension according to the dominant model [odds ratio(OR)=0.691, 95% confidence interval (CI)=0.483-0.990, P=0.044] even after adjustment for age, sex, and the body mass index. The G-A haplotype was associated with a co-effect of the two SNPs, namely, the risk of hypertension decreased (OR=0.879, 95%CI=0.784-0.986, P=0.028). Conclusions: We find no association between single rs2576178 or rs10887800 variants with the risk of hypertension in our OSA population. But, the synergistic effect of the two polymorphisms is associated with the risk of hypertension in OSA patients.
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Affiliation(s)
- J D Yang
- Department of Otorhinolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China Central Laboratory, Shanghai Eighth People's Hospital (Xuhui Branch of Shanghai sixth People's Hospital), Shanghai 200235, China
| | - W J Xue
- Department of Otorhinolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China Department of Otolaryngology Head and Neck Surgery, Shanghai Eighth People's Hospital (Xuhui Branch of Shanghai sixth People's Hospital), Shanghai 200235, China
| | - Z C Wei
- Department of Otorhinolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
| | - C Q Hou
- Department of Otorhinolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China Basic Medical College, Jiamusi University, Jiamusi 154007, China
| | - X Y Li
- Department of Otorhinolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
| | - H H Xu
- Department of Otorhinolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
| | - X L Wu
- Central Laboratory, Shanghai Eighth People's Hospital (Xuhui Branch of Shanghai sixth People's Hospital), Shanghai 200235, China
| | - Y H Feng
- Department of Otolaryngology Head and Neck Surgery, Shanghai Eighth People's Hospital (Xuhui Branch of Shanghai sixth People's Hospital), Shanghai 200235, China
| | - S K Yin
- Department of Otorhinolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
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Du MZ, Zhang JW, Wei ZC, Wu SL, Liu MM, Qiao HW, Guan YC. [The effect of chronic endometritis on the clinical outcomes of patients with failure of first embryo transfer]. Zhonghua Yi Xue Za Zhi 2023; 103:2157-2162. [PMID: 37482727 DOI: 10.3760/cma.j.cn112137-20221127-02517] [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: 07/25/2023]
Abstract
Objective: To investigate the effect of chronic endometritis (CE) on the clinical outcomes of patients with failure of first embryo transfer. Methods: A total of 5 605 cycles of frozen-thawed single blastocyst transfer in the reproductive center of the Third Affiliated Hospital of Zhengzhou University from January 2017 to June 2021 were retrospectively collected. After the failure of first embryo transfer, all patients underwent hysteroscopy, and when necessary, endometrial pathology and immunohistochemistry were combined to diagnose CE. Patients were divided into two groups: non-CE group (5 033 cycles) and CE treatment group (572 cycles). The main outcome was live birth rate and the secondary outcomes included clinical pregnancy rate and early abortion rate. The quantitative data were represented by Median (Q1, Q3). The rank sum test was used for comparison between groups. The factors related to live birth rate were analyzed by binary logistic regression model. Results: The incidence of CE was 10.21% (572 cycles) in patients with the failure of first embryo transfer. The maternal age in the non-CE group was 31.0 (29.0, 34.0) years old, and that in the CE treatment group was 31.0 (29.0, 34.0) years old (P<0.001). There was a statistically significant difference in endometrial preparation between the two groups (P=0.010). The endometrial thickness in the CE group was 9.0 (8.2, 10.3) mm on progesterone transformation day, which was higher than that of [9.5 (8.6, 11.0) mm] in the non-CE group (P<0.001). There was no significant difference in clinical pregnancy rate (60.3% (3 035 cycles) vs 63.1% (361 cycles), P=0.193), early abortion rate (17.1% (520 cycles) vs 20.5% (74 cycles), P=0.112) and live birth rate (49.2% (2 477 cycles) vs 49.3% (282 cycles), P=0.969) between the non-CE group and the CE treatment group. The maternal age, endometrial thickness on progesterone transformation day and blastocyst grade were related factors of the live birth rate, and the OR(95%CI) were 0.94 (0.93-0.96), 1.10 (1.06-1.14) and 2.07 (1.84-2.32)), respectively (all P<0.001). Compared with the non-CE group, the CE treatment group did not affect the live birth rate after transplantation, the aOR (95%CI) was 0.99 (0.82-1.18), P=0.882. Conclusions: For patients who underwent the failure of first embryo transfer, hysteroscopy is recommended before single frozen blastocyst transfer, and if necessary, combined with immunohistochemical screening for CE. After standardized treatment, CE patients could obtain similar clinical pregnancy rate, early miscarriage rate and live birth rate as non-CE patients.
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Affiliation(s)
- M Z Du
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J W Zhang
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Z C Wei
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S L Wu
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M M Liu
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H W Qiao
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y C Guan
- Reproductive Center of the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Yang JH, Xue MJ, Zhang XL, Wei ZC, Shao LL, Shi Y, Hou M. [Efficacy of decitabine in patients with glucocorticoid-resistant primary immune thrombocytopenia: factors influencing treatment responses]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:567-571. [PMID: 37749037 PMCID: PMC10509621 DOI: 10.3760/cma.j.issn.0253-2727.2023.07.008] [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] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Indexed: 09/27/2023]
Abstract
Objective: This study aimed to evaluate the efficacy of decitabine (DAC) and identify factors influencing treatment responses in patients with primary immune thrombocytopenia (ITP) who had failed glucocorticoid therapy. Methods: Clinical data of 61 patients with glucocorticoid-resistant ITP who received DAC therapy (5 mg·m(-2)·d(-1)×3 d via intravenous infusion) for at least three cycles with 3-4-week intervals at the Department of Hematology, Qilu Hospital of Shandong University, from November 2015 to June 2021 were analyzed retrospectively. Results: The 61 patients comprised 20 males and 41 females, with a median age of 45 years (range: 15-81 years). Among them, 43 patients were glucocorticoid-dependent (glucocorticoid-dependent group), while 18 patients were glucocorticoid-resistant (glucocorticoid-resistant group). Following DAC treatment, 12 patients (19.67% ) achieved complete response (CR), and 16 patients (26.23% ) exhibited response (R), resulting in an overall response (OR) rate of 45.90% (28/61). Comparison between the OR group (n=28) and the non-response (NR) group (n=33) revealed significant differences in responses to glucocorticoids (dependent or resistant) and platelet counts before treatment (χ(2)=8.789, P=0.003; z=-2.416, P=0.016). The glucocorticoid-dependent group showed higher platelet counts than the glucocorticoid-resistant group after the second and third cycles of DAC treatment (P=0.032, 0.024). Moreover, the OR rates after the first, second, and third cycles of DAC treatment in the glucocorticoid-dependent group were all higher than those in the glucocorticoid-resistant group (P=0.042, P=0.012, P=0.029). A significant correlation was observed between glucocorticoid dependence and responses to DAC treatment (OR=9.213, 95% CI 1.937-43.820, P=0.005) . Conclusion: DAC demonstrates definitive efficacy with mild adverse effects in a subset of patients with glucocorticoid-resistant primary ITP. Glucocorticoid dependence and higher platelet counts before treatment are associated with a favorable response to DAC therapy.
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Affiliation(s)
- J H Yang
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - M J Xue
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - X L Zhang
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Z C Wei
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - L L Shao
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y Shi
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - M Hou
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
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Huang GX, Zhong LL, Chen H, Wei ZC, Liu XF, Tang F. [Merkel cell polyomavirus positive Merkel cell carcinoma metastatic to pleura and pleural effusions with unknown primary site: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:143-146. [PMID: 33535313 DOI: 10.3760/cma.j.cn112151-20200505-00358] [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)
- G X Huang
- Department of Pathology, the 924th Hospital of the Chinese People's Liberation Army Joint Logistic Support Force (the 181st Hospital of the Chinese People's Liberation Army), Guangxi Key Laboratory of Metabolic Diseases Research, Guilin 541002, Guangxi Zhuang Autonomous Region, China
| | - L L Zhong
- Department of Pathology, the 924th Hospital of the Chinese People's Liberation Army Joint Logistic Support Force (the 181st Hospital of the Chinese People's Liberation Army), Guangxi Key Laboratory of Metabolic Diseases Research, Guilin 541002, Guangxi Zhuang Autonomous Region, China
| | - H Chen
- Department of Pathology, the 924th Hospital of the Chinese People's Liberation Army Joint Logistic Support Force (the 181st Hospital of the Chinese People's Liberation Army), Guangxi Key Laboratory of Metabolic Diseases Research, Guilin 541002, Guangxi Zhuang Autonomous Region, China
| | - Z C Wei
- Department of Pathology, the 924th Hospital of the Chinese People's Liberation Army Joint Logistic Support Force (the 181st Hospital of the Chinese People's Liberation Army), Guangxi Key Laboratory of Metabolic Diseases Research, Guilin 541002, Guangxi Zhuang Autonomous Region, China
| | - X F Liu
- Department of Pathology, the 924th Hospital of the Chinese People's Liberation Army Joint Logistic Support Force (the 181st Hospital of the Chinese People's Liberation Army), Guangxi Key Laboratory of Metabolic Diseases Research, Guilin 541002, Guangxi Zhuang Autonomous Region, China
| | - F Tang
- Department of Pathology, the 924th Hospital of the Chinese People's Liberation Army Joint Logistic Support Force (the 181st Hospital of the Chinese People's Liberation Army), Guangxi Key Laboratory of Metabolic Diseases Research, Guilin 541002, Guangxi Zhuang Autonomous Region, China
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Wei ZC, Wu C, Li Y, Zhang S, Xiang T. Majorana Positivity and the Fermion Sign Problem of Quantum Monte Carlo Simulations. Phys Rev Lett 2016; 116:250601. [PMID: 27391709 DOI: 10.1103/physrevlett.116.250601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Indexed: 06/06/2023]
Abstract
The sign problem is a major obstacle in quantum Monte Carlo simulations for many-body fermion systems. We examine this problem with a new perspective based on the Majorana reflection positivity and Majorana Kramers positivity. Two sufficient conditions are proven for the absence of the fermion sign problem. Our proof provides a unified description for all the interacting lattice fermion models previously known to be free of the sign problem based on the auxiliary field quantum Monte Carlo method. It also allows us to identify a number of new sign-problem-free interacting fermion models including, but not limited to, lattice fermion models with repulsive interactions but without particle-hole symmetry, and interacting topological insulators with spin-flip terms.
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Affiliation(s)
- Z C Wei
- Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
| | - Congjun Wu
- Department of Physics, University of California, San Diego, California 92093, USA
| | - Yi Li
- Princeton Center for Theoretical Science, Princeton University, Princeton, New Jersey 08544, USA
| | - Shiwei Zhang
- Department of Physics, The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - T Xiang
- Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
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Duan HJ, Hu RY, Wu B, Chen DX, Huang KY, Dai J, Chen Q, Wei ZC, Cao S, Sun YH, Li Y. Genetic characterization of red-colored heartwood genotypes of Chinese fir using simple sequence repeat (SSR) markers. Genet Mol Res 2015; 14:18552-61. [PMID: 26782503 DOI: 10.4238/2015.december.28.2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The present study investigated the genetic characterization of red-colored heartwood Chinese fir [Cunninghamia lanceolata (Lamb.) Hook.] in Guangxi using 21 simple sequence repeat (SSR) markers and analyzes of the genetic variation (N = 149) in samples obtained from five sites in Guangxi Province, China. The number of different alleles and the Shannon's information index per locus ranged from 3 to 12 and from 0.398 to 2.258 with average values of 6 and 1.211, respectively, indicating moderate levels of genetic diversity within this germplasm collection. The observed and expected heterozygosity ranged from 0.199 to 0.827 and from 0.198 to 0.878 with an average of 0.562 and 0.584, respectively. Although, the mean fixation index was 0.044, indicative of a low level of genetic differentiation among germplasms, analysis of molecular variance revealed considerable differentiation (99%) within the samples. The neighbor-joining dendrogram revealed that the majority of red-colored Chinese fir genotypes were apparently not associated with their geographic origins. Further analysis by STRUCTURE showed that this Guangxi germplasm collection could be divided into three genetic groups comprising 76, 37, and 36 members, respectively; these were classified into mixed groups with no obvious population structure. These results were consistent with those of the cluster analysis. On the whole, our data provide a starting point for the management and conservation of the current Guangxi germplasm collection as well as for their efficient use in Chinese fir-breeding programs.
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Affiliation(s)
- H J Duan
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - R Y Hu
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - B Wu
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - D X Chen
- Guangxi Province Forestry Research Institute, Nanning, Guangxi Province, China
| | - K Y Huang
- Guangxi Province Forestry Research Institute, Nanning, Guangxi Province, China
| | - J Dai
- Guangxi Province Forestry Research Institute, Nanning, Guangxi Province, China
| | - Q Chen
- Guangxi Province Forestry Research Institute, Nanning, Guangxi Province, China
| | - Z C Wei
- State-Run Bei River Forest Farm, Rongshui, Guangxi Province, China
| | - S Cao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Y H Sun
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Y Li
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
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Chen QN, Qin MP, Chen J, Wei ZC, Zhao HH, Normand B, Xiang T. Partial order and finite-temperature phase transitions in Potts models on irregular lattices. Phys Rev Lett 2011; 107:165701. [PMID: 22107401 DOI: 10.1103/physrevlett.107.165701] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Indexed: 05/31/2023]
Abstract
We evaluate the thermodynamic properties of the 4-state antiferromagnetic Potts model on the Union-Jack lattice using tensor-based numerical methods. We present strong evidence for a previously unknown, "entropy-driven," finite-temperature phase transition to a partially ordered state. From the thermodynamics of Potts models on the diced and centered diced lattices, we propose that finite-temperature transitions and partially ordered states are ubiquitous on irregular lattices.
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Affiliation(s)
- Q N Chen
- Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China
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Liang JZ, Wu CB, Wei ZC. Correlation between impact strength and fracture surface fractal dimension of ABS filled with hollow glass beads. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1831] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhang X, Qiao JY, Zhou XJ, Yao FR, Wei ZC. Morphology and reproductive mode of Blastocystis hominis in diarrhea and in vitro. Parasitol Res 2007; 101:43-51. [PMID: 17216486 DOI: 10.1007/s00436-006-0439-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2006] [Accepted: 12/11/2006] [Indexed: 01/29/2023]
Abstract
The in vitro culture of Blastocystis hominis in Roswell Park Memorial Institute (RPMI) 1,640 medium containing 20% calf serum is described. The morphological and reproductive mode studies of B. hominis in symptomatic patients' faeces and in further RPMI 1,640 medium-cultured samples were undertaken by light microscopy using iodine staining and hematoxylin staining. Three distinct morphological forms, vacuolar, granular and amoeboid, were distinguished in faeces and in vitro cultures. The cystic form was detected in long-term cultures. Five modes of reproduction, namely, binary fission, endodyogeny, plasmotomy, budding and schizogeny were observed.
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Affiliation(s)
- X Zhang
- Department of Immunology and Pathogenic Biology, Medical School of Xi'an Jiaotong University, P.O. Box 64, 205 Scarlet Bird Avenue, Xi'an, 710061, People's Republic of China.
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Pan GL, Fan MG, Fan P, Wang HZ, Wei ZC. Enhancement of a two-photon absorption cross section (TPACS)--design and synthesis of a novel class of photochromic molecules with large TPACS. Chem Commun (Camb) 2001:1744-5. [PMID: 12240294 DOI: 10.1039/b102876f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel photochromic compounds were designed and synthesized; the two-photon absorption (TPA) cross section of both were measured with a nanosecond laser pulse; their TPACS (delta) values are around 25 x 10(-46) cm4 s photon-1 molecule-1 in acetonitrile; the molecular structure of the target compounds have a 3-methyl-1-benzothiophen-2-yl moiety, which can greatly enhance the two-photon absorption cross section.
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Affiliation(s)
- G L Pan
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
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Wei ZC, Gao JG. [Care of liver abscess patients treated by percutaneous puncture intubation drainage]. Zhonghua Hu Li Za Zhi 1988; 23:73-4. [PMID: 3383303] [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: 01/05/2023]
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