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Liu XY, Yan XY, Liu Y, Qu H, Wang Y, Wang J, Guo QY, Lei H, Li XH, Bian F, Cao XY, Zhang R, Wang Y, Huang M, Lin Z, Meijer EW, Aida T, Kong X, Cheng SZD. Self-assembled soft alloy with Frank-Kasper phases beyond metals. Nat Mater 2024; 23:570-576. [PMID: 38297141 DOI: 10.1038/s41563-023-01796-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 12/22/2023] [Indexed: 02/02/2024]
Abstract
Soft building blocks, such as micelles, cells or soap bubbles, tend to adopt near-spherical geometry when densely packed together. As a result, their packing structures do not extend beyond those discovered in metallic glasses, quasicrystals and crystals. Here we report the emergence of two Frank-Kasper phases from the self-assembly of five-fold symmetric molecular pentagons. The μ phase, an important intermediate in superalloys, is indexed in soft matter, whereas the ϕ phase exhibits a structure distinct from known Frank-Kasper phases in metallic systems. We find a broad size and shape distribution of self-assembled mesoatoms formed by molecular pentagons while approaching equilibrium that contribute to the unique packing structures. This work provides insight into the manipulation of soft building blocks that deviate from the typical spherical geometry and opens avenues for the fabrication of 'soft alloy' structures that were previously unattainable in metal alloys.
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Affiliation(s)
- Xian-You Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
| | - Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China.
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH, USA.
- Department of Mechanical Engineering, MIT, Cambridge, MA, USA.
| | - Yuchu Liu
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH, USA
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Yicong Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
| | - Jing Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
| | - Qing-Yun Guo
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH, USA
| | - Huanyu Lei
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
| | - Xing-Han Li
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
| | - Fenggang Bian
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Xiao-Yu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Rui Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China
| | - Yu Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China
| | - Mingjun Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China
| | - Zhiwei Lin
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China
| | - E W Meijer
- Laboratory of Macromolecular and Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Tokyo, Japan
- Riken Center for Emergent Matter Science, Wako, Japan
| | - Xian Kong
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China.
| | - Stephen Z D Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, China.
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH, USA.
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Li XH, Dai S, Yan XY, Lei H, Liu XY, Liu Y, Zhang W, Xu X, Yin JF, Wu Y, Ye F, Guo QY, Cheng SZD. A Thiol-Michael Approach Towards Versatile Functionalized Cyclic Titanium-Oxo Clusters. Chemistry 2023; 29:e202302352. [PMID: 37584964 DOI: 10.1002/chem.202302352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/17/2023]
Abstract
In expanding our research activities of superlattice engineering, designing new giant molecules is the necessary first step. One attempt is to use inorganic transition metal clusters as building blocks. Efficient functionalization of chemically precise transition metal clusters, however, remains a great challenge to material scientists. Herein, we report an efficient thiol-Michael addition approach for the modifications of cyclic titanium-oxo cluster (CTOC). Several advantages, including high efficiency, mild reaction condition, capability of complete addition, high atom economy, as well as high functional group tolerance were demonstrated. This approach can afford high yields of fully functionalized CTOCs, which provides a powerful platform for achieving versatile functionalization of precise transition metal clusters and further applications.
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Affiliation(s)
- Xing-Han Li
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Shuqi Dai
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Xiao-Yun Yan
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio, 44325-3909, United States
| | - Huanyu Lei
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Xian-You Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Yuchu Liu
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio, 44325-3909, United States
| | - Weiqi Zhang
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Xiaotong Xu
- School of Water and Environment, Chang'an University, Xi'an, 710018, China
| | - Jia-Fu Yin
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Yuean Wu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Feng Ye
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Qing-Yun Guo
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio, 44325-3909, United States
| | - Stephen Z D Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio, 44325-3909, United States
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Shi C, Zhang Z, Scoti M, Yan XY, Chen EYX. Endowing Polythioester Vitrimer with Intrinsic Crystallinity and Chemical Recyclability. ChemSusChem 2023; 16:e202300008. [PMID: 36638158 DOI: 10.1002/cssc.202300008] [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] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/13/2023] [Indexed: 06/17/2023]
Abstract
Technologically important thermosets face a long-standing end-of-life (EoL) problem of non-reprocessability, a more sustainable solution of which has resolved to nascent vitrimers that can merge the robust material properties of thermosets and the reprocessability of thermoplastics. However, the lifecycle of vitrimers is still finite, as they often suffer from significant deterioration of mechanical performance following multiple reprocessing cycles, analogous to mechanical recycling, and they often show undesired creep under working conditions. To address these two key limitations, we have developed a cross-linked semi-crystalline polythioester with both dynamic covalent bonds and intrinsic crystallinity and chemical recyclability, affording a vitrimeric system that exhibits not only reprocessability and crystallinity-restricted creep but also complete chemical recyclability to initial monomer by catalyzed depolymerization in solution or bulk. Therefore, reported herein is an "infinite" vitrimer system that is empowered with a facile closed-loop EoL option once serial reprocessing deteriorates performance and the material can no longer meet the application requirements. Specifically, the polythioester vitrimer was constructed by copolymerization of a bicyclic thioester with a bis-dithiolane, producing dynamically cross-linked polythioesters with excellent property tunability, from amorphous to semi-crystalline states and melting transition temperatures from 91 to 178 °C.
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Affiliation(s)
- Changxia Shi
- Department of Chemistry, Colorado State University, Fort Collins, Colorado, 80523-1872, United States
| | - Zhen Zhang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado, 80523-1872, United States
| | - Miriam Scoti
- Department of Chemistry, Colorado State University, Fort Collins, Colorado, 80523-1872, United States
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126, Napoli, Italy
| | - Xiao-Yun Yan
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio, 44325-3909, United States
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado, 80523-1872, United States
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Xie L, Zhou Z, Chen HX, Yan XY, Ye JQ, Jiang Y, Zhou L, Zhang Q. Correlations between serum laminin level and severity of heart failure in patients with chronic heart failure. Front Cardiovasc Med 2023; 10:1089304. [PMID: 37008313 PMCID: PMC10060624 DOI: 10.3389/fcvm.2023.1089304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 02/24/2023] [Indexed: 03/18/2023] Open
Abstract
Objective This study aimed to investigate the correlation between serum laminin (LN) levels and clinical stages of heart failure in patients with chronic heart failure. Methods A total of 277 patients with chronic heart failure were selected from September 2019 to June 2020 in the Department of Cardiology, Second Affiliated Hospital of Nantong University. Based on stages of heart failure, the patients were divided into four groups: stage A, stage B, stage C, and stage D, with 55, 54, 77, and 91 cases, respectively. At the same time, 70 healthy people in this period were selected as the control group. Baseline data were recorded and serum Laminin (LN) levels were measured. The research compared, the differences in baseline data among the four groups of HF and normal controls, and analyzed the correlation between N-terminal pro-brain natriuretic peptide (NT-proBNP) and left ventricular ejection fraction (LVEF). The receiver operating characteristic (ROC) curve was used to evaluate the predictive value of LN in the C-D stage of heart failure. Logistic multivariate ordered analysis was applied to screen the independent related factors of clinical stages of heart failure. Results Serum LN levels in patients with chronic heart failure were significantly higher than those in healthy people, which were 33.2 (21.38, 101.9) ng/ml and 20.45 (15.53, 23.04) ng/ml, respectively. With the progression of clinical stages of HF, serum LN and NT-proBNP levels increased, while LVEF gradually decreased (P < 0.05). Correlation analysis showed that LN was positively correlated with NT-proBNP (r = 0.744, P = 0.000) and negatively correlated with LVEF (r = -0.568, P = 0.000). The area under the ROC curve of LN for predicting C and D stages of heart failure was 0.913, 95% confidence interval was 0.882-0.945, P = 0.000, specificity 94.97%, and sensitivity 77.38%. Multivariate Logistic analysis showed that LN, Total bilirubin, NT-proBNP and HA were all independent correlates of heart failure staging. Conclusion Serum LN levels in patients with chronic heart failure are significantly increased and are independently correlated with the clinical stages of heart failure. It could potentially be an early warning index of the progression and severity of heart failure.
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Affiliation(s)
- Ling Xie
- Department of Cardiology, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Zhen Zhou
- Deparment of Science and Education, Nantong Third People's Hospital, Nantong, China
| | - Hai-Xiao Chen
- Department of General Medicine, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Xiao-Yun Yan
- Department of General Medicine, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Jia-Qi Ye
- Department of General Medicine, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Ying Jiang
- Department of General Medicine, Second Affiliated Hospital of Nantong University, Nantong, China
| | - Lei Zhou
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qing Zhang
- Department of General Medicine, Second Affiliated Hospital of Nantong University, Nantong, China
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Zhou D, Xu M, Gan Z, Yan XY, Ma Z, Zheng J, Dong XH. Discrete Diblock Copolymers with Precise Stereoconfiguration. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02506] [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: 03/06/2023]
Affiliation(s)
- Dongdong Zhou
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Miao Xu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Zhanhui Gan
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Zhuang Ma
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Juncheng Zheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Xue-Hui Dong
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
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Zhao Q, Hao Y, Yang XQ, Yan XY, Qiu YL. [Preliminary study on the effect of fecal microbiota transplantation on neurobehavior and gut microbiota of offspring rats exposed to arsenic]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:14-20. [PMID: 36725289 DOI: 10.3760/cma.j.cn121094-20220311-00125] [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: 02/03/2023]
Abstract
Objective: To explore the effects of fecal microbiota transplantation (FMT) on neurobehavior and gut microbiota of arsenic-exposed offspring rats. Methods: In April 2021, Thirty-six SPF SD rats aged 8 weeks were seleted, rats were ranked by weight and divided into four groups according to randomized block design, namely control group, arsenic exposure group (As group) , arsenic+normal saline group (As+NaCl group) and As+FMT group, 6 females and 3 males in each group. Fecal microbiota fluid were provided by feces of rats in control group. Rats drank tap water containing 75 mg/L sodium arsenite for one week and then were caged together. The arsenic exposure was terminated until the pups were born. Female rats with vaginal plug were treated with fecal microbiota fluid via gavage during neurodevelopmental teratogenic window period. The volume of gavage was 1 ml/100 g with once every two days, for a total of three times. Weight alterations of offspring rats were recorded every week after weaning, and when offspring rats grew up for 6 weeks, Morris test and open field experiment was used to observe learning and memory abilities, as well as neurobehavioral performance of autonomous exploration and tension, respectively. 16S rDNA sequencing technology was used to detect microbiota diversities in fecal samples of rats in As group and As+FMT group. Results: Compared with the control group, the ratio of swimming distance and staying time in the target quadrant and the times of crossing the platform of rats in As group decreased significantly, and the motor distance, times entering central zone and the number of grid crossing of rats decreased significantly (P<0.05) . Compared with As group, the ratio of swimming distance in target quadrant, the motor distance in central zone and times entering central zone of rats in As+FMT group were evidently increased (P<0.05) . The analysis of fecal microbiota diversities showed that, at the phyla level, the relative abundance of Bacteroidetes in feces of rats in As+FMT group was higher than that in As group (68.34% vs 60.55%) , while the relative abundance of Firmicutes was lower than that in As group (28.02% vs 33.48%) . At the genus level, the relative abundance of Prevotella in As+FMT group was significantly higher than that in As group, becoming the dominant genus (42.08% vs 21.78%) . Additionally, compared with As group, a total of 22 genus were increased with 21 decreased genus in As+FMT group (P<0.05) . LEfSe analysis showed that dominant genuses in As+FMT group were Prevotella and UCG_005, and their relative abundance was significantly higher than that of As group (P<0.05) . Conclusion: FMT may alleviate the impaired learning and memory ability and anxiety like behavior of the offspring rats exposed to arsenic, and improve the disrupted gut microbiota.
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Affiliation(s)
- Q Zhao
- Department of Health Toxicology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Y Hao
- Department of Health Toxicology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - X Q Yang
- Department of Health Toxicology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - X Y Yan
- Department of Health Toxicology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Y L Qiu
- Department of Health Toxicology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Fan L, Li T, Xu YY, Yan XY. Species diversity, phylogeny, endemism and geography of the truffle genus Tuber in China based on morphological and molecular data. Persoonia 2022; 48:175-202. [PMID: 38234690 PMCID: PMC10792285 DOI: 10.3767/persoonia.2023.48.05] [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] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 03/18/2022] [Indexed: 01/19/2024]
Abstract
The genus Tuber (Tuberaceae, Pezizales) is an important fungal group of Ascomycota both economically and ecologically. However, the species diversity, phylogenetic relationships, and geographic distribution of Tuber species in China remains poorly understood, primarily because descriptions of many new species relied heavily on morphological features with molecular data either not sought or ignored. The misapplication of European and North American names further added to confusion regarding the taxonomy of Chinese Tuber species. In this study, we examined more than 1 000 specimens from China, and performed a comprehensive phylogenetic analysis for Chinese Tuber species using ITS sequences and multilocus sequence data. To infer the phylogeny of Chinese Tuber spp., 11 molecular datasets were assembled, including a concatenated internal transcribed spacers of the nuc rDNA (ITS), nuc rDNA 28S subunit (LSU), translation elongation factor 1-alpha (tef1-α), and RNA polymerase II subunit (rpb2) dataset as well as 10 ITS datasets (totally including 1 435 sequences from 828 collections with 597 newly generated sequences, and 168 sequences from the types of 63 species). Our phylogenetic tree based on a concatenated multilocus dataset revealed that all Chinese Tuber species nested in nine phylogenetic clades (phylogroups), including Aestivum, Excavatum, Latisporum, Macrosporum, Maculatum, Melanosporum, Puberulum, Rufum and Turmericum. Of these, five phylogroups (Macrosporum, Maculatum, Melanosporum, Puberulum and Rufum) are shared across the continents of Asia, Europe and North America; two phylogroups (Aestivum and Excavatum) are shared by Europe and Asia; and the phylogroups Turmericum and Latisporum are endemic only to Asia. Phylogenetic trees based on 10 ITS datasets confirmed the presence of at least 82 phylogenetic species in China. Of these, 53 are identified as known species, including three new records for China, and 25 species are identified as new to science. Of the new species, nine are described and illustrated in this paper, and the others remain unnamed due to the paucity or absence of ascomatal materials. Accordingly, the confirmed, excluded and doubtful Tuber species in China are discussed. Tuber species showed high endemism. Of the 82 phylogenetic species found in China, 68 species occur only in China, six species are also found in other regions in Asia, and only eight species (T. anniae, T. excelsum-reticulatum, T. formosanum, T. maculatum, T. wenchuanense, Tuber sp. CHN-3, Tuber sp. CHN-10 and Tuber sp. CHN-11) are shared with other continents. Most Tuber species have a small and limited distribution in China, but a few, such as T. formosanum and T. parvomurphium, are widely distributed across China. Some phylogenetically closely related species, such as T. liaotongense and T. subglobosum, as well as T. xuanhuaense and T. lijiangense, show a pattern of allopatric distribution.
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Affiliation(s)
- L Fan
- College of Life Science, Capital Normal University, Xisanhuanbeilu 105, Haidian, Beijing 100048, China
- College of Life Science, Capital Normal University, Xisanhuanbeilu 105, Haidian, Beijing 100048, China
| | - T Li
- College of Life Science, Capital Normal University, Xisanhuanbeilu 105, Haidian, Beijing 100048, China
- College of Life Science, Capital Normal University, Xisanhuanbeilu 105, Haidian, Beijing 100048, China
| | - Y Y Xu
- College of Life Science, Capital Normal University, Xisanhuanbeilu 105, Haidian, Beijing 100048, China
| | - X Y Yan
- College of Life Science, Capital Normal University, Xisanhuanbeilu 105, Haidian, Beijing 100048, China
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Yan XY, Lin JL, Tian RH, Weng XQ, Wang L, Zou ZK, Li XH, Lin XD, Chen G, Hu D. [Multicenter retrospective study of 38 cases with fumarate hydratase deficiency uterine leiomyoma]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:435-441. [PMID: 35775251 DOI: 10.3760/cma.j.cn112141-20220312-00148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the clinicopathological features of fumarate hydratase (FH) deficiency uterine leiomyoma. Methods: The data of 38 patients with FH deficiency uterine leiomyoma were screened and analyzed. The expressions of FH, S-(2-succino)-cysteine (2SC), desmin, p16, p53, CD10 and cell proliferation associated nuclear antigen (Ki-67) proteins were detected by immunohistochemistry, and their clinicopathological features were analyzed retrospectively. Results: (1) Clinical features: the median age of the patients was (42.5±7.4) years old. Twenty-one cases (55%) of them were myomas found in physical examination, and the median maximum diameter of the tumor was 6.0 cm (range: 5.0-7.5 cm); myomectomy was performed in 23 cases (61%), total hysterectomy with or without bilateral appendages in 15 cases (39%); laparoscopic surgery in 27 cases (71%), open surgery in 11 cases (29%); none of the patients had renal cell carcinoma. (2) Histological features: atypical nuclear cells were distributed locally or diffusely, eosinophilic nucleoli and intranuclear inclusion bodies could be seen, glass like globules could be seen in the cytoplasm, nuclear division was 0-4/10 high power field (HPF), and antler like blood vessels and pulmonary edema-like changes could be seen in the stroma. Among 38 patients with FH deficiency uterine leiomyoma, FH was negative in 37 cases (97%), and positive in 1 case (3%); 2SC, desmin, p16, p53, CD10 and Ki-67 showed focal positive expression in 38 cases (100%), including 35 cases (92%) with Ki-67 index<10% and 3 cases (8%) with Ki-67 index ≥10%. (3) Follow-up: 4 cases (11%) recurred, and there was no death. There were significant differences in age, family history, distribution of atypical nuclei and mitosis number between recurrent group and non-recurrent group (all P<0.05). Conclusions: FH deficiency uterine leiomyoma is a rare tumor, which needs pathological examination,immunohistochemical examination and clinical history. Patients younger than 43 years old, with family history, histologically atypical diffuse nuclear distribution and mitotic number ≥3/10 HPF should be alert to the risk of recurrence.
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Affiliation(s)
- X Y Yan
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - J L Lin
- Department of Pathology, the Second People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350003, China
| | - R H Tian
- Department of Pathology, Xiamen Maternal and Child Health Hospital, Xiamen 361003, China
| | - X Q Weng
- Department of Pathology, Mindong Hospital Affiliated to Fujian Medical University, Ningde 355099, China
| | - L Wang
- Department of Pathology, People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350004, China
| | - Z K Zou
- Department of Pathology, Zhangzhou Hospital Affiliated to Fujian Medical University, Zhangzhou 363008, China
| | - X H Li
- Department of Pathology, Nanping First Hospital Affiliated to Fujian Medical University, Nanping 353023, China
| | - X D Lin
- Laboratory of Radiobiology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - G Chen
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - D Hu
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
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Gao HJ, Zhong LJ, Yan XY, Zhang WX, Shen W. [Personalized therapy for Helicobacter pylori on initial treatment: the initial treatment is the decisive battle]. Zhonghua Yi Xue Za Zhi 2022; 102:1631-1634. [PMID: 35692014 DOI: 10.3760/cma.j.cn112137-20220224-00384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
As widespread eradication treatment continues, the rate of (Helicobacter pylori, H. pylori) antibiotic resistance is increasing. Together with host CYP2C19 gene polymorphisms, H. pylori coccoid transformation, patient compliance, irregular treatment regimens or empirical repeated eradication therapy by physician, H. pylori eradication rates have gradually decreased. Personalized treatment is an effective measure to achieve successful eradication of H. pylori in the initial treatment. With the first approval of molecular diagnostic kit for H. pylori clarithromycin resistance in China and the updated definition of refractory H. pylori infection by the American Gastroenterological Association (AGA), the personalized treatment of H. pylori guided by antibiotic resistance genotype detection in initial treatment, that follows the latest international consensus and guidelines, conforms to the national situation and surpasses the international standards, has come to the forefront.
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Affiliation(s)
- H J Gao
- Tongji Hospital, Institute of Digestive Diseases, School of Medicine, Tongji University, Shanghai 200065, China
| | - L J Zhong
- Tongji Hospital, Institute of Digestive Diseases, School of Medicine, Tongji University, Shanghai 200065, China
| | - X Y Yan
- China Center for Helicobacter pylori Molecular Medicine, Shanghai 201321, China
| | - W X Zhang
- National Engineering Center for Biochips at Shanghai, Shanghai 201203, China
| | - Weixiang Shen
- National Engineering Center for Biochips at Shanghai, Shanghai 201203, China
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10
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Lei H, Liu Y, Liu T, Guo QY, Yan XY, Wang Y, Zhang W, Su Z, Huang J, Xu W, Bian FG, Huang M, Cheng SZD. Unimolecular Nanoparticles toward more Precise Regulations of Self‐assembled Superlattices in Soft Matter. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huanyu Lei
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Yuchu Liu
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Tong Liu
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Qing-Yun Guo
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Xiao-Yun Yan
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Yicong Wang
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Wei Zhang
- University of Akron Department of Polymer Science CHINA
| | - Zebing Su
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Jiahao Huang
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Wei Xu
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Feng-Gang Bian
- Chinese Academy of Sciences Shanghai Synchrotron Radiation Facility CHINA
| | - Mingjun Huang
- South China University of Technology South China Advanced Institute for Soft Matter Science and Technology CHINA
| | - Stephen Z. D. Cheng
- The University of Akron Department of Polymer Science 170 University Ave. 44325-3909 Akron UNITED STATES
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11
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Liu Y, Liu T, Yan XY, Guo QY, Lei H, Huang Z, Zhang R, Wang Y, Wang J, Liu F, Bian FG, Meijer EW, Aida T, Huang M, Cheng SZD. Expanding quasiperiodicity in soft matter: Supramolecular decagonal quasicrystals by binary giant molecule blends. Proc Natl Acad Sci U S A 2022; 119:e2115304119. [PMID: 35022240 PMCID: PMC8784096 DOI: 10.1073/pnas.2115304119] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/25/2021] [Indexed: 11/18/2022] Open
Abstract
The quasiperiodic structures in metal alloys have been known to depend on the existence of icosahedral order in the melt. Among different phases observed in intermetallics, decagonal quasicrystal (DQC) structures have been identified in many glass-forming alloys yet remain inaccessible in bulk-state condensed soft matters. Via annealing the mixture of two giant molecules, the binary system assemblies into an axial DQC superlattice, which is identified comprehensively with meso-atomic accuracy. Analysis indicates that the DQC superlattice is composed of mesoatoms with an unusually broad volume distribution. The interplays of submesoatomic (molecular) and mesoatomic (supramolecular) local packings are found to play a crucial role in not only the formation of the metastable DQC superlattice but also its transition to dodecagonal quasicrystal and Frank-Kasper σ superlattices.
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Affiliation(s)
- Yuchu Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Tong Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Qing-Yun Guo
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Huanyu Lei
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zongwu Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Rui Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yu Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Jing Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Feng Liu
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Center for Soft Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Feng-Gang Bian
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - E W Meijer
- Laboratory of Macromolecular and Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
- Riken Center for Emergent Matter Science, Wako 351-0198, Japan
| | - Mingjun Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China;
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Stephen Z D Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China;
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
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12
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Xu W, Wang Y, Guo QY, Wang X, Liu Y, Bian FG, Yan XY, Ni B, Cheng SZD. A robust platform to construct molecular patchy particles with a pentiptycene skeleton toward controlled mesoscale structures. Polym Chem 2022. [DOI: 10.1039/d2py00130f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new pentiptycene skeleton with orthogonally reactive sites and inherent D2h-symmetry to construct molecular pathy particles toward mesoscale structures.
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Affiliation(s)
- Wei Xu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Yicong Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Qing-Yun Guo
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH, 44325, USA
| | - Xiaoteng Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Yuchu Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH, 44325, USA
| | - Feng-Gang Bian
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH, 44325, USA
| | - Bo Ni
- College of Materials Science & Engineering, Nanjing Tech University, Nanjing, 210009, China
- Nanjing Julong Science & Technology Company Limited, Nanjing, 210009, China
| | - Stephen Z. D. Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH, 44325, USA
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13
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Yan XY, Guo QY, Liu XY, Wang Y, Wang J, Su Z, Huang J, Bian F, Lin H, Huang M, Lin Z, Liu T, Liu Y, Cheng SZD. Superlattice Engineering with Chemically Precise Molecular Building Blocks. J Am Chem Soc 2021; 143:21613-21621. [PMID: 34913335 DOI: 10.1021/jacs.1c09831] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Correlating nanoscale building blocks with mesoscale superlattices, mimicking metal alloys, a rational engineering strategy becomes critical to generate designed periodicity with emergent properties. For molecule-based superlattices, nevertheless, nonrigid molecular features and multistep self-assembly make the molecule-to-superlattice correlation less straightforward. In addition, single component systems possess intrinsically limited volume asymmetry of self-assembled spherical motifs (also known as "mesoatoms"), further hampering novel superlattices' emergence. In the current work, we demonstrate that properly designed molecular systems could generate a spectrum of unconventional superlattices. Four categories of giant molecules are presented. We systematically explore the lattice-forming principles in unary and binary systems, unveiling how molecular stoichiometry, topology, and size differences impact the mesoatoms and further toward their superlattices. The presence of novel superlattices helps to correlate with Frank-Kasper phases previously discovered in soft matter. We envision the present work offers new insights about how complex superlattices could be rationally fabricated by scalable-preparation and easy-to-process materials.
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Affiliation(s)
- Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Qing-Yun Guo
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Xian-You Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yicong Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jing Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zebin Su
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Jiahao Huang
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Fenggang Bian
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Haixin Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, China.,Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mingjun Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Zhiwei Lin
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Tong Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Yuchu Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Stephen Z D Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
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14
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Sun X, Feng X, Yan XY, Luo J, Zhang R, Li T, Li H, Chen J, Liu F, Raee E, Cheng SZD, Liu T. Screw dislocation-induced pyramidal crystallization of dendron-like macromolecules featuring asymmetric geometry. Chem Sci 2021; 12:12130-12137. [PMID: 34667578 PMCID: PMC8459181 DOI: 10.1039/d1sc02617h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 08/02/2021] [Indexed: 12/26/2022] Open
Abstract
We report herein that dendron-shaped macromolecules AB n crystallize into well-ordered pyramid-like structures from mixed solvents, instead of spherical motifs with curved structures, as found in the bulk. The design of the asymmetric molecular architecture and the choice of mixed solvents are applied as strategies to manipulate the crystallization process. In mixed solvents, the solvent selection for the Janus macromolecule and the existence of dominant crystalline clusters contribute to the formation of flat nanosheets. Whereas during solvent evaporation, the bulkiness of the asymmetric macromolecules easily creates defects within 2D nanosheets which lead to their spiral growth through screw dislocation. The size of the nanosheets and the growth into 2D nanosheets or 3D pyramidal structures can be regulated by the solvent ratio and solvent compositions. Moreover, macromolecules of higher asymmetry generate polycrystals of lower orderliness, probably due to higher localized stress.
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Affiliation(s)
- Xinyu Sun
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
| | - Xueyan Feng
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
| | - Xiao-Yun Yan
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology Guangzhou 510640 China
| | - Jiancheng Luo
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
| | - Ruimeng Zhang
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
| | - Tao Li
- X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory Argonne IL 60439 USA
- Department of Chemistry and Biochemistry, Northern Illinois University DeKalb IL 60115 USA
| | - Hui Li
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
| | - Jiahui Chen
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
| | - Fangbei Liu
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
| | - Ehsan Raee
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
| | - Stephen Z D Cheng
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology Guangzhou 510640 China
| | - Tianbo Liu
- School of Polymer Science and Polymer Engineering, The University of Akron Akron Ohio 44325 USA
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15
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Huang J, Zhang R, Wang Y, Su Z, Yan XY, Guo QY, Liu T, Liu Y, Lei H, Huang M, Zhang W, Cheng SZD. Rational Route Toward the Frank–Kasper Z Phase: Effect of Precise Geometrical Tuning on the Supramolecular Assembly of Giant Shape Amphiphiles. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01120] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiahao Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 50610, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, Guangzhou 50610, China
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Ruimeng Zhang
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Yicong Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 50610, China
| | - Zebin Su
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Xiao-Yun Yan
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Qing-Yun Guo
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Tong Liu
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Yuchu Liu
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Huanyu Lei
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 50610, China
| | - Mingjun Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 50610, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, Guangzhou 50610, China
| | - Wei Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 50610, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, Guangzhou 50610, China
| | - Stephen Z. D. Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 50610, China
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
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16
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Guo QY, Yan XY, Zhang W, Li XH, Xu Y, Dai S, Liu Y, Zhang BX, Feng X, Yin J, Han D, Huang J, Su Z, Liu T, Huang M, Hsu CH, Cheng SZD. Ordered Mesoporous Silica Pyrolyzed from Single-Source Self-Assembled Organic-Inorganic Giant Surfactants. J Am Chem Soc 2021; 143:12935-12942. [PMID: 34387467 DOI: 10.1021/jacs.1c05356] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report the preparation of hexagonal mesoporous silica from single-source giant surfactants constructed via dihydroxyl-functionlized polyhedral oligomeric silsesquioxane (DPOSS) heads and a polystyrene (PS) tail. After thermal annealing, the obtained well-ordered hexagonal hybrid was pyrolyzed to afford well-ordered mesoporous silica. A high porosity (e.g., 581 m2/g) and a uniform and narrow pore size distribution (e.g., 3.3 nm) were achieved. Mesoporous silica in diverse shapes and morphologies were achieved by processing the precursor. When the PS tail length was increased, the pore size expanded accordingly. Moreover, such pyrolyzed, ordered mesoporous silica can help to increase both efficiency and stability of nanocatalysts.
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Affiliation(s)
- Qing-Yun Guo
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Wei Zhang
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Xing-Han Li
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yongsheng Xu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Shuqi Dai
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yuchu Liu
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Bo-Xing Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xueyan Feng
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Jiafu Yin
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Di Han
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Jiahao Huang
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Zebin Su
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Tong Liu
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Mingjun Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, Guangzhou 510640, China
| | - Chih-Hao Hsu
- Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
| | - Stephen Z D Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Department of Polymer Science, School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325-3909, United States
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17
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Ji MS, Guo QY, Yan XY, Liu Y, Wu YJ, Yue K, Guo ZH. Crystallization Induced Self-Assembly: A Strategy to Achieve Ultra-Small Domain Sizes. Chemistry 2021; 27:7992-7997. [PMID: 33830540 DOI: 10.1002/chem.202100638] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Indexed: 01/16/2023]
Abstract
Achieving self-assembled nanostructures with ultra-small feature sizes (e. g., below 5 nm) is an important prerequisite for the development of block copolymer lithography. In this work, the preparation and self-assembly of a series of giant molecules composed of vinyl polyhedral oligomeric silsesquioxane (VPOSS) tethered with monodispersed oligo(L-lactide) chains are presented. Small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) results demonstrate that ultra-small domain sizes (down to 3 nm) of phase separated lamellar morphology are achieved in bulk, driven by the strong tendency and fast kinetics for crystallization of VPOSS moieties. Moreover, upon gamma ray radiation, VPOSS cages in the lamellar structure can be crosslinked via polymerization of the vinyl groups. After pyrolysis at high temperature, ultra-thin two-dimensional nano-silica sheets can be obtained.
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Affiliation(s)
- Ming-Sheng Ji
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Qing-Yun Guo
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yuchu Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yan-Jun Wu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Kan Yue
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.,Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Zi-Hao Guo
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.,Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
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18
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Su Z, Huang J, Shan W, Yan XY, Zhang R, Liu T, Liu Y, Guo QY, Bian F, Miao X, Huang M, Cheng SZD. Constituent Isomerism-Induced Quasicrystal and Frank–Kasper σ Superlattices Based on Nanosized Shape Amphiphiles. CCS Chem 2021. [DOI: 10.31635/ccschem.020.202000338] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Zebin Su
- School of Molecular Science and Engineering, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510640
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Jiahao Huang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Wenpeng Shan
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Xiao-Yun Yan
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Ruimeng Zhang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Tong Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Yuchu Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Qing-Yun Guo
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
| | - Fenggang Bian
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204
| | - Xiaran Miao
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204
| | - Mingjun Huang
- School of Molecular Science and Engineering, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510640
| | - Stephen Z. D. Cheng
- School of Molecular Science and Engineering, South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510640
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325
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19
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Huang J, Su Z, Huang M, Zhang R, Wang J, Feng X, Zhang R, Zhang R, Shan W, Yan XY, Guo QY, Liu T, Liu Y, Cui Y, Li X, Shi AC, Cheng SZD. Spherical Supramolecular Structures Constructed via Chemically Symmetric Perylene Bisimides: Beyond Columnar Assembly. Angew Chem Int Ed Engl 2020; 59:18563-18571. [PMID: 32656991 DOI: 10.1002/anie.201914889] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 04/28/2020] [Indexed: 01/20/2023]
Abstract
Like other discotic molecules, self-assembled supramolecular structures of perylene bisimides (PBIs) are commonly limited to columnar or lamellar structures due to their distinct π-conjugated scaffolds and unique rectangular shape of perylene cores. The discovery of PBIs with supramolecular structures beyond layers and columns may expand the scope of PBI-based materials. A series of unconventional spherical packing phases in PBIs, including A15 phase, σ phase, dodecagonal quasicrystalline (DQC) phase, and body-centered cubic (BCC) phase, is reported. A strategy involving functionalization of perylene core with several polyhedral oligomeric silsesquioxane (POSS) cages achieved spherical assemblies of PBIs, instead of columnar assemblies, due to the significantly increased steric hindrance at the periphery. This strategy may also be employed for the discovery of unconventional spherical assemblies in other related discotic molecules by the introduction of similar bulky functional groups at their periphery. An unusual inverse phase transition sequence from a BCC phase to a σ phase was observed by increasing annealing temperature.
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Affiliation(s)
- Jiahao Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China.,Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Zebin Su
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Mingjun Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Rongchun Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Jian Wang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Xueyan Feng
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Rui Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Ruimeng Zhang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Wenpeng Shan
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Xiao-Yun Yan
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Qing-Yun Guo
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Tong Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Yuchu Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Yunpeng Cui
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - An-Chang Shi
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, L8S 4M1, Canada
| | - Stephen Z D Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China.,Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
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20
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Zhang B, Yan XY, Zhang XY, Jia ZW. [Research progress on current situation and preventive measures for the narcotic and psychotropic drugs abuse in the elderly]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:615-620. [PMID: 32344492 DOI: 10.3760/cma.j.cn112338-20190723-00542] [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
Both narcotic and psychotropic drugs are more often used to alleviate related multiple physical or mental health problems, but these drugs are very easily addicted to. With the aging of population, abuse of narcotic drugs and psychotropic drugs among the elderly are called for more attention. In this paper, harms caused by the abuse of anesthetic and psychotropic drugs, current situation and causes related to the abuse of anesthetic and psychotropic drugs as well as risk factors and preventive measures regarding the abuse of anesthetic and psychotropic drugs, among the elderly, are reviewed.
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Affiliation(s)
- B Zhang
- School of Public Health, Peking University, Beijing 100191, China; National Institute on Drug Dependence, Peking University, Beijing 100191, China
| | - X Y Yan
- School of Public Health, Peking University, Beijing 100191, China; National Institute on Drug Dependence, Peking University, Beijing 100191, China
| | - X Y Zhang
- School of Public Health, Peking University, Beijing 100191, China; National Institute on Drug Dependence, Peking University, Beijing 100191, China
| | - Z W Jia
- National Institute on Drug Dependence, Peking University, Beijing 100191, China
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21
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Su Z, Zhang R, Yan XY, Guo QY, Huang J, Shan W, Liu Y, Liu T, Huang M, Cheng SZ. The role of architectural engineering in macromolecular self-assemblies via non-covalent interactions: A molecular LEGO approach. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101230] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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22
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Lu RQ, Yan XY, Zhu L, Yang LL, Qu H, Wang XC, Luo M, Wang Y, Chen R, Wang XY, Lan Y, Pei J, Weng W, Xia H, Cao XY. Author Correction: Unveiling how intramolecular stacking modes of covalently linked dimers dictate photoswitching properties. Nat Commun 2020; 11:1678. [PMID: 32235828 PMCID: PMC7109058 DOI: 10.1038/s41467-020-15256-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Ru-Qiang Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xiao-Yun Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.,Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Lei Zhu
- School of Chemistry and Chemical Engineering, Chongqing University, 400030, Chongqing, China
| | - Lin-Lin Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xin-Chang Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Ming Luo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Yu Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Rui Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xiao-Ye Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China.
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, 400030, Chongqing, China.
| | - Jian Pei
- Beijing National Laboratory for Molecular Sciences (BNLMS), the Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Wengui Weng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xiao-Yu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.
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23
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Yan XY, Lin Z, Zhang W, Xu H, Guo QY, Liu Y, Luo J, Liu XY, Zhang R, Huang J, Liu T, Su Z, Zhang R, Zhang S, Liu T, Cheng SZD. Magnifying the Structural Components of Biomembranes: A Prototype for the Study of the Self-Assembly of Giant Lipids. Angew Chem Int Ed Engl 2020; 59:5226-5234. [PMID: 31957938 DOI: 10.1002/anie.201916149] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Indexed: 12/24/2022]
Abstract
How biomembranes are self-organized to perform their functions remains a pivotal issue in biological and chemical science. Understanding the self-assembly principles of lipid-like molecules hence becomes crucial. Herein, we report the mesostructural evolution of amphiphilic sphere-rod conjugates (giant lipids), and study the roles of geometric parameters (head-tail ratio and cross-sectional area) during this course. As a prototype system, giant lipids resemble natural lipidic molecules by capturing their essential features. The self-assembly behavior of two categories of giant lipids (I-shape and T-shape, a total of 8 molecules) is demonstrated. A rich variety of mesostructures is constructed in solution state and their molecular packing models are rationally understood. Giant lipids recast the phase behavior of natural lipids to a certain degree and the abundant self-assembled morphologies reveal distinct physiochemical behaviors when geometric parameters deviate from natural analogues.
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Affiliation(s)
- Xiao-Yun Yan
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China.,Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Zhiwei Lin
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Wei Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Hui Xu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Qing-Yun Guo
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Yuchu Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Jiancheng Luo
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Xian-You Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Rongchun Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Jiahao Huang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Tong Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Zebin Su
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Ruimeng Zhang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Shuailin Zhang
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Tianbo Liu
- Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Stephen Z D Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, 510640, China.,Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
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24
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Zhang X, Li XD, Feng GS, Xu ZF, Du JN, Wang GX, Ma J, Hu PJ, Yan XY, Zhang J, Zhang YM, Liu YH, Zhao J, Zheng L, Chen J, Tai J, Ni X. [The prevalence of snoring and its related family factors of children from 3 to 14 years old in Beijing]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:902-906. [PMID: 31887815 DOI: 10.3760/cma.j.issn.1673-0860.2019.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the snoring status and related family factors of children from 3 to 14 years old in Beijing. Methods: From May to July, 2015, data of children from 3 to 14 years old were obtained from a status survey from 7 districts(Xicheng, Chaoyang, Changping, Shunyi, Fangshan, Huairou and Mentougou) in Beijing. A total of 11 420 children from 25 primary and middle schools were randomly selected. Pediatric Sleep Questionnaire (PSQ) and a self-administered questionnaire were carried out for the adopted children. Self-administered questionnaire included the snoring related family factors. Logistic regression was used to estimate the odd ratio(OR) with 95% confidence intervals for variables. Results: A total of 9 198 children meet the inclusion criteria and are analyzed in the study, of whom 901 (9.80%) were found with snoring behavior. The incidence of boys is higher than girls. Obese children take higher risk of snoring. Compared with younger children (≤6 years old), older children (≥12 years old) have a significantly lower risk of snoring (OR=0.464, 95%CI 0.368-0.585). There is no statistical association between full-term infants, infant feeding pattern, parental cigarette smoking and child snoring.The children with family history of snoring have a significantly higher risk of snoring occurrence. The educational background of mother is statistically related to children snoring (OR=1.241, 95%CI 1.058-1.457). Conclusions: The incidence of children snoring in Beijing is 9.80%, male gender, obesity, and young age are all risk factors for children snoring. There is a significantly statistical relationship between snoring and related family factors, such as family snoring history and education experience.
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Affiliation(s)
- X Zhang
- Big Data and Engineering Research Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X D Li
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - G S Feng
- Big Data and Engineering Research Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Z F Xu
- Department of Respiration, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J N Du
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - G X Wang
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J Ma
- Institute of Child And Adolescent Health, Peking University, Beijing 100083, China
| | - P J Hu
- Institute of Child And Adolescent Health, Peking University, Beijing 100083, China
| | - X Y Yan
- Clinical Research Institute, Peking University, Beijing 100083, China
| | - J Zhang
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y M Zhang
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y H Liu
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J Zhao
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L Zheng
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J Chen
- Big Data and Engineering Research Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J Tai
- Department of Scientific Research, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X Ni
- Department of Otolaryngology, Head and Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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25
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Lu RQ, Yan XY, Zhu L, Yang LL, Qu H, Wang XC, Luo M, Wang Y, Chen R, Wang XY, Lan Y, Pei J, Weng W, Xia H, Cao XY. Unveiling how intramolecular stacking modes of covalently linked dimers dictate photoswitching properties. Nat Commun 2019; 10:5480. [PMID: 31792204 PMCID: PMC6889182 DOI: 10.1038/s41467-019-13428-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 05/02/2019] [Accepted: 11/07/2019] [Indexed: 02/01/2023] Open
Abstract
Covalently linked π-stacked dimers represent the most significant platform for elucidating the relationship between molecular alignments and their properties. Here, we present the one-pot synthesis of two intramolecularly π-stacked dimers and disclose how intramolecular stacking modes dictate photoswitching properties. The dimer, which features cofacially stacked chromophores and geometrically favours intramolecular photochemical [2 + 2] cycloadditions, displays a nearly irreversible photoswitching behaviour. By contrast, the dimer, bearing crosswise stacked chromophores, is geometrically unfavourable for the cycloaddition and exhibits a highly reversible photoswitching process, in which the homolysis and reformation of carbon−carbon single bonds are involved. Moreover, the chiral carbon centres of both dimers endow these photoswitches with chirality and the separated enantiomers exhibit tuneable chiroptical properties by photoswitching. This work reveals that intramolecular stacking modes significantly influence the photochemical properties of π-stacked dimers and offers a design strategy toward chiral photoswitchable materials. Covalently bridged π-stacked dimers are excellent molecular platforms for understanding the relationship between stacking orientation and properties. Here, the authors synthesize a pair of π-stacked dimers that are aligned either cofacially or crosswise, allowing them to compare how the intramolecular stacking mode affects each dimer’s photoswitching properties.
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Affiliation(s)
- Ru-Qiang Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xiao-Yun Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.,Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44325-3909, USA
| | - Lei Zhu
- School of Chemistry and Chemical Engineering, Chongqing University, 400030, Chongqing, China
| | - Lin-Lin Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xin-Chang Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Ming Luo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Yu Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Rui Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xiao-Ye Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China.
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, 400030, Chongqing, China.
| | - Jian Pei
- Beijing National Laboratory for Molecular Sciences (BNLMS), the Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Wengui Weng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xiao-Yu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.
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26
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Huo XH, Krumholz HMK, Bai XB, Spatz ESS, Ding QD, Horak PH, Zhao WZ, Gong QG, Yan XY, Wu XW, Li JL, Li XL, Spertus JAS, Masoudi FAM, Zheng XZ. P573Effects of mobile text messaging on glycemic control in patients with coronary heart disease and diabetes mellitus: a randomized controlled trial. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Mobile health interventions hold the prospect to support risk factor and lifestyle modification and are readily scalable in healthcare systems.
Purpose
We aim to assess whether text messaging program can improve glycemic control in high-risk patients with coronary heart disease (CHD) and diabetes mellitus (DM).
Methods
The study was a multi-centre randomised clinical trial conducted at 34 clinics in China. 502 individuals with both CHD and DM were recruited and randomly assigned to either the text messaging intervention (n=251) or control group (n=251). The control group received 2 thank-you messages per month in addition to usual care. The intervention group received 6 messages per week for 6 months. Messages provided educational and motivational information related to glucose monitoring, BP control, physical activity and lifestyle recommendations. The primary outcome was change in glycemic hemoglobin (HbA1C) from baseline to 6 months.
Results
Follow-up rate was 99%. At 6 months, HbA1C was significantly lower in intervention group compared to control group (mean HbA1C 6.7% vs. 7.2%, P<0.001), with a mean change of −0.2% and 0.1% from baseline, respectively (mean absolute change −0.3% [95% CI −0.5 to 0.1]; P=0.003). Significantly more participants in intervention group achieved a HbA1c<7% (69.3% vs. 52.6%; P=0.004), and change in FBG was larger in intervention group (−0.5 vs. 0.1 mmol/L; P=0.011). No differences in SBP, LDL-C, BMI and physical activity were observed. Almost all patients reported messages to be easy to understand (97.1%) and useful (94.1%).
Table 1. Primary and Secondary Outcomes Analyses at 6 Month Follow-up Parameter Intervention (N=251) Control (N=251) Mean Difference in Change P value for Baseline 6 Months Mean Change Baseline 6 Months Mean Change (95% CI) Difference in Change Primary Outcome HbA1C level, %, mean (SD) 6.9 (1.4) 6.7 (1.3) −0.2 (1.0) 7.1 (1.4) 7.2 (1.5) 0.1 (1.1) −0.3 (−0.5, −0.1) 0.003 Secondary Outcomes HbA1C level<7%, No. (%) 155 (62.0%) 174 (69.3%) – 139 (56.1%) 132 (52.6%) – 1.2 (1.1, 1.3)a 0.004 FBG, mmol/L, mean (SD) 8.1 (2.7) 7.5 (2.7) −0.5 (2.5) 8.5 (3.0) 8.6 (3.3) 0.1 (3.1) −0.6 (−1.1, −0.2) 0.011 SBP, mmHg, mean (SD) 135.9 (18.4) 134.7 (18.7) −1.4 (17.1) 135.9 (18.1) 132.2 (17.7) −3.5 (17.8) 2.4 (−0.8,5.5) 0.144 LDL-C, mmol/L, mean (SD) 2.6 (0.8) 2.5 (0.7) −0.1 (0.7) 2.6 (0.8) 2.5 (0.8) −0.1 (0.7) 0 (−0.1, 0.1) 0.828 BMI, mean (SD) 26.4 (3.2) 26.3 (3.5) −0.1 (2.1) 26.3 (3.2) 26.0 (3.4) −0.4 (2.5) 0.3 (−0.1, 0.7) 0.213 Physical activity (MET min/wk), 1386 1386 177 1386 1386 322 −70.7 0.784 median (IQR) (693–3066) (918–3612) (2840) (693–3066) (693–3002) (2635) (−574.9, 433.5)
Conclusion
Use of a simple, culturally sensitive mobile text-messaging program could be an effective and scalable way to improve disease self-management among patients with CHD and DM.
Acknowledgement/Funding
Research Special Fund for Public Welfare Industry of Health (201502009) from the National Health and Family Planning Commission of China
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Affiliation(s)
- X H Huo
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, China Oxford Center for International Health Research, Beijing, China
| | - H M K Krumholz
- Yale New Haven Hospital, Center for Outcomes Research and Evaluation, New Haven, United States of America
| | - X B Bai
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, China Oxford Center for International Health Research, Beijing, China
| | - E S S Spatz
- Yale New Haven Hospital, Center for Outcomes Research and Evaluation, New Haven, United States of America
| | - Q D Ding
- Yale New Haven Hospital, Center for Outcomes Research and Evaluation, New Haven, United States of America
| | - P H Horak
- School of Medicine, Stanford, United States of America
| | - W Z Zhao
- Peking Union Medical College Hospital, Department of Endocrinology & Key Laboratory of Endocrinology, Beijing, China
| | - Q G Gong
- Fu Wai Hospital, Department of Endocrinology, Beijing, China
| | - X Y Yan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, China Oxford Center for International Health Research, Beijing, China
| | - X W Wu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, China Oxford Center for International Health Research, Beijing, China
| | - J L Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, China Oxford Center for International Health Research, Beijing, China
| | - X L Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, China Oxford Center for International Health Research, Beijing, China
| | - J A S Spertus
- St. Luke's Mid America Heart Institute, Health Outcomes Research, Kansas City, United States of America
| | - F A M Masoudi
- University of Colorado, Division of Cardiology, Aurora, United States of America
| | - X Z Zheng
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, China Oxford Center for International Health Research, Beijing, China
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Li HB, Tai J, Feng GS, Li XD, Du JN, Wang GX, Xu ZF, Ma J, Hu PJ, Yan XY, Zhang J, Zhang YM, Liu YH, Zhao J, Zheng L, Chen J, Ge WT, Ni X. [Analysis of sleep quality and related factors among children in Beijing]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:416-420. [PMID: 31262105 DOI: 10.3760/cma.j.issn.1673-0860.2019.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 sleep quality of children in Beijing and to analyze the related factors. Methods: The data were collected from the survey of 3-14 years old children in 7 urban districts of Beijing in 2015. By using multi-stage stratified cluster random sampling method, 26 kindergartens and primary and secondary schools in 7 districts and counties, including Xicheng, Chaoyang, Changping, Shunyi, Fangshan, Huairou and Mentougou, were randomly selected, with a total of 11 420 children. Children's sleep status was investigated with Children's Sleep Questionnaire (PSQ), and the proportion of children with sleep quality problems when the PSQ score was greater than 7. Various sleep related factors were investigated with self-made questionnaire. A multilevel model was used to analyze the relationship between PSQ score and related factors. Results: The average PSQ score of the children was 3.60±2.69. The proportion of children with sleep quality problems was 8.87%(816/9 198). Multilevel model analysis showed that the younger the children, the higher the PSQ score (<6 years old vs. 6~12 years old vs. >12 years old: 3.94±2.58 vs. 3.58±2.66 vs. 3.30±2.84, F=33.015, P<0.001); male PSQ score higher than female (3.89±2.75 vs. 3.30±2.60, t=10.560, P<0.001); and snoring, obesity, father/mother snoring, playing games before bed, surfing the internet, eating and other factors were statistically related to PSQ. Conclusions: Sleep quality of children in Beijing should not be neglected, especially preschool children with high PSQ scores. Parents should pay attention to children's snoring problems and try to reduce some pre-sleep behaviors that may affect sleep quality.
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Affiliation(s)
- H B Li
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - J Tai
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - G S Feng
- Clinical Epidemiology and Evidence Based Medicine Center, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - X D Li
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - J N Du
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - G X Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - Z F Xu
- Department of Respiration, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - J Ma
- Institute of Child And Adolescent Health, Peking University, Beijing 100083, China
| | - P J Hu
- Institute of Child And Adolescent Health, Peking University, Beijing 100083, China
| | - X Y Yan
- Clinical Research Institute, Peking University, Beijing 100083, China
| | - J Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - Y M Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - Y H Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - J Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - L Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - J Chen
- Department of Scientific Research, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - W T Ge
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - X Ni
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
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He HR, Zhang JF, Zhang N, Cai H, Yan XY, Guo XH, Li YB, Zhang M, Ma GS. [Analysis of food water sources of college students from Hebei Province in spring]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:350-354. [PMID: 30982266 DOI: 10.3760/cma.j.issn.0253-9624.2019.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the food source of water of college students from Hebei Province in spring. Methods: In March 2017, the subjects were recruited in a college in Baoding, Hebei Province. 156 students completed the investigation. All foods were collected for 3 consecutive days using duplicate portion study combined with weighing method to test the water content of various foods. To analyze the water content of the food and calculate the proportion to the total amount of food water intake, the edible parts of each meal were divided into staple food, dishes, porridge, soup and snacks. Body mass index (BMI) was grouped according to quartiles, and the differences in food intake and food water sources among subjects of different genders and BMI were compared. Results: The age of subjects was (19.8±1.1) years old, including 80 male students. The median intake of staple food, dishes, porridge, soup and snacks per day was 562 g, 743 g, 111 g, 102 g and 0 g, respectively. The median intake of water from staple food, dishes, porridge, soup and snacks per day was 301 ml/d, 620 ml/d, 97 ml/d, 93 ml/d and 0 ml/d, respectively. The median ratio of water intake to total food water intake of staple food, dishes, porridge, soup and snacks was 27%, 53%, 8%, 8% and 0%, respectively. The median intake of water from staple food and dishes in male students was significantly higher than that of female students (P<0.05). The amount of water intake from porridge of female students was significantly higher than that of male students (P<0.05). There was no significant difference in the water intake from soup and snacks between different genders. There was no significant difference in food intake and food water sources among college students with different BMI (P>0.05). Conclusion: The food source of water of college students from Hebei Province in spring is mainly based on dishes and staple foods. The food source of water for boys and girls is different.
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Affiliation(s)
- H R He
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - J F Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - N Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - H Cai
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - X Y Yan
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - X H Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - Y B Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - M Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - G S Ma
- Department of Nutrition and Food Hygiene, School of Public Health/Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
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Zhang JF, Zhang N, He HR, Cai H, Guo XH, Yan XY, Li YB, Zhang M, Ma GS. [The total fluids intake among young adults from Hebei Province in spring]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:345-349. [PMID: 30982265 DOI: 10.3760/cma.j.issn.0253-9624.2019.04.003] [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
Objectives: To investigate the total fluids intake among college students in spring from Hebei. Methods: In March 2017, the subjects were recruited in a college in Baoding, Hebei Province. 156 students completed the investigation. Total drinking fluids was assessed by 7-day 24-hour fluid intake questionnaire, with a quantitative tool. The water from food was assessed by duplicate portion method. The sources of total fluids intake among subjects were analysed. Results: The age of subjects was (19.8±1.1) years old, including 80 male students. The median amounts of total fluids intake, total drinking fluids and water from food were 2 324, 1 135 and 1 174 ml, respectively. The proportions of total drinking fluids and water from food in total fluids intake were 51%±9% and 49%±10%. Only 19.9% (n=31) and 18.6% (n=29) of college students had adequate total fluids intake and total drinking fluids, according to the recommendation of China. The median amounts of total fluids intake, total drinking fluids and water from food were 3 210, 1 860 and 1 093 ml/d, respectively. The proportion of total drinking fluids in total fluids intake was 61%±7%, which were all higher than those who did not reach the recommended intake (2 158, 1 000, 1 149 ml/d; drinking fluids accounting for 46%±8% of total fluids intake) (P<0.05). Conclusion: The amounts of total fluids intake and total drinking fluids of college students in Hebei Province are lower than the recommended intake in China. The contributions of total drinking fluids and water from food to total fluids intake were nearly same.
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Affiliation(s)
- J F Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - N Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - H R He
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - H Cai
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - X H Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - X Y Yan
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - Y B Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - M Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
| | - G S Ma
- Department of Nutrition and Food Hygiene, School of Public Health/Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
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30
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Tai J, Xu ZF, Li XD, Du JN, Wang GX, Ma J, Hu PJ, Yan XY, Zhang J, Zhang YM, Liu YH, Zhao J, Zheng L, Chen J, Ni X. [The prevalence of snoring and its association with academic performance among school-aged children in Beijing]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:697-702. [PMID: 29996295 DOI: 10.3760/cma.j.issn.0253-9624.2018.07.004] [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 the snoring status of school-aged children in Beijing and explore the association of snoring and academic performance. Methods: A total of 7 925 children aged from 6 to 14 were selected from 15 primary and middle schools at 7 districts (Xicheng, Chaoyang, Changping, Shunyi, Fangshan, Huairou and Mentougou) in Beijing in 2015, using multi-stage stratified cluster random sampling method. The recruited children were asked to complete the Pediatric Sleep Questionnaire (PSQ) and a questionnaire related to sleep behavior. The multiplelogistic regression was used to analyze the association of snoring and academic performance. Results: A total of 794 (12.44%) children showed a decline in academic performance among 6 383 eligible respondentsfor data analysis. 580 (9.08%) children with snoring was identified, of which 333 and 247 were in frequency of 1-2 times per week and frequency of ≥3 times per week, respectively; 357, 170 and 53 were in snoring grade Ⅰ, grade Ⅱ and grade Ⅲ, respectively. Compared with the children without snoring, the OR (95%CI) for children with 1-2 times per week and ≥3 times per week was 1.363 (1.000-1.857) and 1.605 (1.135-2.269), respectively; and the OR (95%CI) for children with grade Ⅰ, grade Ⅱ and grade Ⅲ of snoring was 1.226 (0.893-1.683), 1.595 (1.062-2.397) and 2.31 (1.17-4.565), respectively. Conclusion: There is a statistical relationship between snoring and the decline of academic performance. The decline of academic performance positively associated with increased frequency and grade of snoring.
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Affiliation(s)
- J Tai
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital, Beijing 100045, China
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31
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Lin Z, Yang X, Xu H, Sakurai T, Matsuda W, Seki S, Zhou Y, Sun J, Wu KY, Yan XY, Zhang R, Huang M, Mao J, Wesdemiotis C, Aida T, Zhang W, Cheng SZD. Topologically Directed Assemblies of Semiconducting Sphere–Rod Conjugates. J Am Chem Soc 2017; 139:18616-18622. [DOI: 10.1021/jacs.7b10193] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhiwei Lin
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Xing Yang
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Hui Xu
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Tsuneaki Sakurai
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Wakana Matsuda
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shu Seki
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yangbin Zhou
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Jian Sun
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Kuan-Yi Wu
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Xiao-Yun Yan
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Ruimeng Zhang
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Mingjun Huang
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Jialin Mao
- Department
of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Chrys Wesdemiotis
- Department
of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Takuzo Aida
- Department
of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Wei Zhang
- South
China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510640, China
| | - Stephen Z. D. Cheng
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
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32
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Hu JP, Cheng X, Xu XF, Yu GJ, Luo F, Zhang GS, Yang N, Shen P, Yan XY. Reactivity of patients with maintenance hemodialysis to erythropoietin in the treatment of renal anemia. J BIOL REG HOMEOS AG 2016; 30:535-540. [PMID: 27358145] [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: 06/06/2023]
Abstract
To explore the reactivity of patients with renal anemia (MHD) to erythropoietin (EPO) in maintenance hemodialysis (HD), 31 patients were enrolled in this study. According to the level of serum ferritin (SF), they were divided into two groups; one group received treatment using recombinant human erythropoietin (rHuEPO) and the other group was given iron sucrose. Taking terminal EPO dosage, terminal erythropoietin resistance index (ERI) and rate of change of ERI (ΔERII) as target indexes, the influence of SF level on dosage of EPO was evaluated after usage conditions of relevant substances in a 3-month period. The results revealed that differences of dialysis age, albumin (ALB), blood calcium, initial and terminal SF, variable quantity of hemoglobin (Hb), terminal EPO and ERI between two groups had statistical significance. Furthermore, SF level and terminal EPO (r = -0.37, P < 0. 05) as well as SF level and terminal ERI (r = - 0.39, P <0.05) were negatively correlated. Difference of terminal ERI between the two groups had statistical significance. It can therefore be summarized that supplementing an iron agent intravenously to maintain SF level between 500 ng/ml and 1200 ng/ml may improve reactivity of patients with MHD to EPO. In addition, rHuEPO therapy in treating anemia of patients with MHD has the same effect with intravenous drug delivery, less side effects and is easy to administer.
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Affiliation(s)
- J P Hu
- Nephrology Division of Zhengzhou TCM Hospital, Zhengzhou, Henan, China
| | - X Cheng
- Nephrology Division of Zhengzhou TCM Hospital, Zhengzhou, Henan, China
| | - X F Xu
- Nephrology Division of Zhengzhou TCM Hospital, Zhengzhou, Henan, China
| | - G J Yu
- Nephrology Division of the Affiliated Hospital of Henan Province Chinese Medicine Research Institute, China
| | - F Luo
- Endocrinology Division of Zhengzhou Central Hospital, Zhengzhou, Henan, China
| | - G S Zhang
- Nephrology Division of Zhengzhou TCM Hospital, Zhengzhou, Henan, China
| | - N Yang
- Science and Education Department of Zhengzhou TCM Hospital, Zhengzhou, Henan, China
| | - P Shen
- Nephrology Division of Zhengzhou TCM Hospital, Zhengzhou, Henan, China
| | - X Y Yan
- Vice President, Zhengzhou TCM Hospital, Zhengzhou, Henan, China
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Huang YN, Li J, Jiang QY, Shen XS, Yan XY, Tang YB, Huang J, Guo YF, Lan GQ, Jiang HS. Complete mitochondrial genome of the Cyclemys dentata and phylogenetic analysis of the major family Geoemydidae. Genet Mol Res 2015; 14:3234-43. [PMID: 25966089 DOI: 10.4238/2015.april.13.2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In the present study, the complete mitochondrial (mt) genome of Cyclemys dentata was determined using PCR reactions. The structural organization and gene order of C. dentata were equivalent to those of most other vertebrates. The mt genome was 16,489 bp in length, has rich A+T content, consisting of 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, and a control region (D-loop). All protein-coding genes started with ATG, many genes have complete stop codons, except ND2, COX3, ND3, and cyt-b genes had incomplete stop codons of T. The light-strand replication origin (OL) of C. dentata might fold into a stable stem-loop secondary structure, and its loop had 2 nt less than that of the Cyclemys atripons OL sequence. The D-Loop of C. dentata contained a central domain (CD), 2 extended termination associated sequences (ETAS1, ETAS2) and 3 conserved sequence blocks (CSB1, CSB2, CSB3). The average length of 20 turtles' mt genomes was 16,692.5 bp, including 34.1% A, 27.0% T, 26.0% C and 12.9% G. The C. dentata mitochondrial genome could provide useful data for further studies on phylogenetics and conservation genetics of this species. The phylogenetic relationships of the family Geoemydidae were analyzed by maximum-likelihood (ML) and neighbor-joining (NJ) based on concatenated sequences of 13 protein-coding genes from 20 turtle species. The ML and NJ trees had homologous topologies. The results support the existing classification of the genera of Geoemydidae, that C. dentata was a sister species of C. atripons, Pyxidea nested in Cuora, and Chinemys was synonymous with Mauremys.
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Affiliation(s)
- Y N Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - J Li
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Q Y Jiang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - X S Shen
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - X Y Yan
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Y B Tang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - J Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Y F Guo
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - G Q Lan
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - H S Jiang
- College of Animal Science and Technology, Guangxi University, Nanning, China
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Lu RQ, Zhou YN, Yan XY, Shi K, Zheng YQ, Luo M, Wang XC, Pei J, Xia H, Zoppi L, Baldridge KK, Siegel JS, Cao XY. Thiophene-fused bowl-shaped polycyclic aromatics with a dibenzo[a,g]corannulene core for organic field-effect transistors. Chem Commun (Camb) 2015; 51:1681-4. [DOI: 10.1039/c4cc08451a] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [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
Electron-rich thiophene units were fused into the skeleton of corannulene to extend π-surfaces and tune arrangement in a single crystal.
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Chen R, Lu RQ, Shi K, Wu F, Fang HX, Niu ZX, Yan XY, Luo M, Wang XC, Yang CY, Wang XY, Xu B, Xia H, Pei J, Cao XY. Corannulene derivatives with low LUMO levels and dense convex–concave packing for n-channel organic field-effect transistors. Chem Commun (Camb) 2015; 51:13768-71. [DOI: 10.1039/c5cc03550c] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [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
N-channel OFETs in air based on corannulenes through lowering their LUMO levels and packing the molecules densely in single crystals were achieved.
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Lu RQ, Xuan W, Zheng YQ, Zhou YN, Yan XY, Dou JH, Chen R, Pei J, Weng W, Cao XY. A corannulene-based donor–acceptor polymer for organic field-effect transistors. RSC Adv 2014. [DOI: 10.1039/c4ra11824c] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Affiliation(s)
- Z J Cao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China 100193
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Zhang XN, Xu J, Tang LH, Gong J, Yan XY, Zhang Q. Influence on intestinal mucous permeation of paclitaxel of absorption enhancers and dosage forms based on electron spin resonance spectroscopy. Pharmazie 2007; 62:368-71. [PMID: 17557746] [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: 05/15/2023]
Abstract
The aim of this paper is to investigate the permeation mechanism of the hydrophobic drug, paclitaxel in intestinal membranes of mice in relation to enhancers and preparation factors. The alteration fluidity of lipid and protein in mucous membrane were determined using electron spin resonance (ESR) when the membrane was treated with several enhancers including Pluronic F68, polyethylene glycol (PEG), Brij78 and lecithin. At the same time, the enhanced permeation of paclitaxel across the intestinal intercellular membrane of stratum corneum was studied for three formulations: inclusion complex, microemulsion and injection. The results showed that use of paclitaxel-hydroxypropyl-beta-cyclodextrin inclusion complexation and of paclitaxel microemulsion as vehicle and PEG 1500 as enhancer could significantly increase the permeation kinetics of paclitaxel in a fluid diffusion study. The effect on absorption characteristics of enhancing permeation of this hydrophobic drug in the intestinal mucosa was considered in the light of the change in membrane fluid.
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Affiliation(s)
- X N Zhang
- College of Pharmacy, Soochow University, DuShuHu High Education Zone, Su Zhou, Jiang Su Province, People's Republic of China.
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Abstract
In order to generate catalytic antibodies with glutathione peroxidase (GPx) activity, we prepared GSH-S-DNP butyl ester and GSH-S-DNP benzyl ester as the haptens. Two ScFvs that bound specifically to the haptens were selected from the human phage-displayed antibody library. The two ScFv genes were highly homologous, consisting of 786 bps and belonging to the same VH family-DP25. In the premise of maintaining the amino acid sequence, mutated plasmids were constructed by use of the mutated primers in PCR, and they were over-expressed in E. coli. After the active site serine was converted into selenocysteine with the chemical modifying method, we obtained two human catalytic antibodies with GPx activity of 72.2U/micromol and 28.8U/micromol, respectively. With the aid of computer mimicking, it can be assumed that the antibodies can form dimers and the mutated selenocysteine residue is located in the binding site. Furthermore, the same Ping-Pong mechanism as the natural GPx was observed when the kinetic behavior of the antibody with the higher activity was studied.
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Affiliation(s)
- F Fang
- Lab 5, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
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Wu XP, Yang DL, Zhang ZQ, Yan XY. [A three-domain antibody fragment VH/L specific to tumor blood vessels]. Sheng Wu Gong Cheng Xue Bao 2001; 17:50-4. [PMID: 11330187] [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: 02/19/2023]
Abstract
AA98 is a specificaally anti-angiogenic antibody generated in our lab. The heavy chain variable region (VH) attached with mutagenized 36 nucleotides sequence derived from the heavy chain constant region1 (CH1) was amplified VH and light chain (L) were inserted into high-level expression vector pET21a successively, thus pET21a-VH/L was constructed. VH/L was expressed in E. coli BL21 (DE3) after induction with IPTG. The expression of VH/L was 20% of the total bacterial proteins. The refolding of VH/L was conducted by dilution and gel filtration chromatography. The refolded VH/L could bind to HUVEC specifically. Its affinity to the antigen is similar to that of recombinant AA98Fab, but lower than that of the parent antibody AA98.
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Affiliation(s)
- X P Wu
- State Key Laboratory of Microbial Resource, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, China
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Schwartz GN, Kammula U, Warren MK, Park MK, Yan XY, Marincola FM, Gress RE. Thrombopoietin and chemokine mRNA expression in patient post-chemotherapy and in vitro cytokine-treated marrow stromal cell layers. Stem Cells 2000; 18:331-42. [PMID: 11007917 DOI: 10.1634/stemcells.18-5-331] [Citation(s) in RCA: 7] [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: 11/17/2022]
Abstract
CD34(+) cells and megakaryocyte progenitors were lower in marrow from patients after hematological recovery from the first cycle of 5-fluorouracil, leucovorin, adriamycin, cyclophosphamide (FLAC) chemotherapy plus PIXY321 (GM-CSF/interleukin 3; IL-3 hybrid) than in FLAC + GM-CSF or pre-FLAC marrows. Marrow stromal layers, an in vitro model of the marrow microenvironment, express a combination of stimulatory and inhibitory factors that modulate hematopoietic progenitor cell proliferation and differentiation. The TaqMan assay and quantitative reverse transcriptase-polymerase chain reaction were used to measure monocyte chemoattractant protein-1 (MCP-1), melanoma stimulatory growth activity, and monokine inducible by interferon-gamma (Mig) (inhibitory chemokines for primitive or megakaryocyte progenitors) mRNA levels in in vitro PIXY and GM-CSF-treated and patient post-FLAC marrow stromal layers. Chemokine mRNA was increased after in vitro GM-CSF and to a lesser extent after PIXY treatment. MCP-1 mRNA levels were fivefold higher in FLAC + PIXY than in FLAC + GM-CSF layers, and Mig mRNA was elevated in FLAC + GM-CSF layers. Thrombopoietin (TPO), insulin-like growth factor I (IGF-I), and IGF-II (stimulatory factors for primitive and megakaryocyte progenitors) mRNA were also measured. TPO mRNA levels were 30% lower in GM-CSF and PIXY-pretreated than in control layers with no decrease in IGF mRNA. TPO mRNA in stromal layers of patients who developed grade 3 thrombocytopenia (platelets < 20 x 10(9)/l) during the third cycle of FLAC was only 24% of levels in stromal layers of marrow from other post-FLAC patients. Results demonstrate that patient and in vitro treatment had modulatory effects on TPO and chemokine mRNA expression in marrow stromal layers.
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Affiliation(s)
- G N Schwartz
- Department of Experimental Transplantation and Immunology, Medicine Branch and Surgery Branch, National Cancer Institute, Bethesda, Maryland, USA.
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Yan XY, Tang J, Huang YH. [High-level expression of human vascular endothelial growth factor in Pichia pastoris]. Sheng Wu Gong Cheng Xue Bao 2000; 16:531-3. [PMID: 11051836] [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: 02/18/2023]
Abstract
The gene of VEGF165 was subcloned into the P. pastoris secretive expression vector pHIL-S1 and the recombinant expression plasmid pHIL-S1-VEGF165 was constructed. After transformation into yeast GS115, the positive transformants were obtained through phenotype selection and DNA Dot blotting. After induction by methanol, soluble dimer VEGF165 were expressed and secreted into the culture supernatant with its expression occupying 47% of the total protein in the supernatant. Dot blot analysis showed that the expressed human VEGF165 could bind to its receptors flt-1 and KDR.
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Affiliation(s)
- X Y Yan
- State Key Laboratory of Microbial Resources, Chinese Academy of Sciences Beijing
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Yan XY, Zhang GR, Song XY. [Study on Chinese herb incense to disinfect wards' air]. Zhonghua Hu Li Za Zhi 1995; 30:323-4. [PMID: 8631075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The purpose of this study was to find out a proper way to do the air sterilization in the wards. In this study, Chinese herb-burn-incense was used to different wards. Its effect was compared with routine air sterilization methods such as ultraviolet radiator, formaldehyde, and lactiacid method. The bacterial culture of the air was done. The result indicated that Chinese herb-burn-incense not only had the same effect as routine methods in air sterilization but also had no irritation to the patients.
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Yan XY. [Freeze fracture study of the retinal pigment epithelium of the chick embryo]. Zhonghua Yan Ke Za Zhi 1988; 24:168-70. [PMID: 3147869] [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: 01/04/2023]
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