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Wang Z, Zhang L, Ma J, Li Y, Liu XH, Guo L, Zhu YT, Han QX, Fan DY. [Short-term outcomes of modified load-sharing rip-stop repair compared with suture-bridge repair for large rotator cuff tears]. Zhonghua Wai Ke Za Zhi 2020; 58:631-635. [PMID: 32727196 DOI: 10.3760/cma.j.cn112139-20200304-00184] [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 examine the short-term outcomes of modified load-sharing rip-stop repair (mLSRS) and suture-bridge repair (SB) for large rotator cuff tear. Methods: The clinical data of patients who underwent shoulder arthroscopy for large rotator cuff repair at Department of Orthopedic, China Academy of Chinese Medical Sciences Wang Jing Hospital from January 2017 to December 2018 were collected. Totally 111 patients (39 in mLSRS group and 72 in SB group) were included in the study. There were 45 males and 66 females, aged (58.0±6.9)years (range: 40 to 72 years).A total of 39 pairs of patients were successfully matched by propensity score matching. The pain of shoulder joint was assessed by visual analogy score (VAS) , the shoulder function was assessed by Constant-Murley score, the abduction strength of bilateral shoulder joint was assessed by 90˚ force assessment method of upper limb on the plane of scapula, and the healing of rotator cuff on the operative side was assessed by sugaya ultrasonic classification standard. The difference of short-term outcome between the two groups were compared using t test, χ(2) test, Mann-Whitney U test, repeated measures design anova and multivariate analysis of variance. Results: At the 4th week after surgery, the VAS of mLSRS group was significantly lower than SB group(1 (2) vs. 2 (2) , F=5.32, P=0.02). One year after surgery, Constant-Murley score of two groups were significantly higher than those before surgery, but there was no significant difference between two groups(89.1±5.7 vs. 87.6±7.3, t=1.00, P=0.32). Abductor strength of affected limbs were lower than that of the opposite side, but there were no statistically significant differences between two groups(4.28±1.61 vs. 4.54±1.64, t=-0.70, P=0.49). According to the Sugaya classification, 32 cases in mLSRS group were healed while 7 cases were not healed,30 cases in SB group were healed while 9 cases were not healed(χ(2)=0.32, P=0.58). Conclusion: The use of mLSRS fixation construct on large rotator cuff tear can reduce pain and the short-term outcome is reliable.
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Affiliation(s)
- Z Wang
- Beijing University of Chinese Medicine, Beijing 100029, China
| | - L Zhang
- Department of Orthopedic, China Academy of Chinese Medical Sciences Wang Jing Hospital, Beijing 100102, China
| | - J Ma
- Department of Orthopedic, China Academy of Chinese Medical Sciences Wang Jing Hospital, Beijing 100102, China
| | - Y Li
- Department of Orthopedic, China Academy of Chinese Medical Sciences Wang Jing Hospital, Beijing 100102, China
| | - X H Liu
- Department of Orthopedic, China Academy of Chinese Medical Sciences Wang Jing Hospital, Beijing 100102, China
| | - L Guo
- Department of Orthopedic, China Academy of Chinese Medical Sciences Wang Jing Hospital, Beijing 100102, China
| | - Y T Zhu
- Department of Orthopedic, China Academy of Chinese Medical Sciences Wang Jing Hospital, Beijing 100102, China
| | - Q X Han
- Beijing University of Chinese Medicine, Beijing 100029, China
| | - D Y Fan
- Beijing University of Chinese Medicine, Beijing 100029, China
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Wu SL, Zhu WJ, Fan DY, Shi BQ, An YD, Wang CL, Han XM, Guo YM. [Phylogenetic analysis of Echinococcus granulosus genotypes based on the GenBank database]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:36-46. [PMID: 32185926 DOI: 10.16250/j.32.1374.2019147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To analyze the sequences of the cytochrome C oxidase subunit I (Cox1) gene of various Echinococcus granulosus genotypes that are currently recorded in the GenBank database, so as to investigate the genetic variation and differentiation of the E. granulosus genotypes across the world. METHODS The sequences of the Cox1 gene of various E. granulosus genotypes that are currently recorded in the GenBank database were collected, and the same sequences of the Cox1 gene identified from a region were excluded. The mutation sites among the Cox1 gene sequences were identified and a phylogenetic tree was created based on the Cox1 gene. RESULTS Transversion mutation was the predominant type of mutation in the Cox1 gene of E. granulosus. The same Cox1 gene sequence was found in E. granulosus G1, G6 and G7 genotypes isolated from various geographical locations across the world, with the corresponding GenBank accession numbers of KY766891, MH300971 and MH301007, respectively. Phylogenetic analysis revealed that E. granulosus G10 genotype had a remarkable geographical aggregation. CONCLUSIONS E. granulosus G1, G6 and G7 genotypes have primitive Cox1 gene sequences. There is a geographical aggregation of the E. granulosus G10 genotype in the phylogenetic tree, which has a tendency towards reproductive isolation.
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Affiliation(s)
- S L Wu
- Qinghai Provincial People's Hospital, Qinghai Province, Xining 810007, China
| | - W J Zhu
- Qinghai Provincial People's Hospital, Qinghai Province, Xining 810007, China
- Co-first author
| | - D Y Fan
- Qinghai Provincial Red Cross Hospital, China
| | - B Q Shi
- Qinghai Provincial People's Hospital, Qinghai Province, Xining 810007, China
| | - Y D An
- Qinghai Provincial People's Hospital, Qinghai Province, Xining 810007, China
| | - C L Wang
- Qinghai Provincial People's Hospital, Qinghai Province, Xining 810007, China
| | - X M Han
- Qinghai Provincial People's Hospital, Qinghai Province, Xining 810007, China
| | - Y M Guo
- Qinghai Provincial People's Hospital, Qinghai Province, Xining 810007, China
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Li FN, Li Y, Fan DY, Wang HX. Self-powered diamond ultraviolet photodetector with a transparent Ag nanowire electrode. Nanotechnology 2019; 30:325204. [PMID: 30978717 DOI: 10.1088/1361-6528/ab18c2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A novel diamond UV photodetector with a transparent Ag nanowire (NW) electrode was fabricated. A transparent Ag NW network was spin-coated on single crystalline diamond to form a Schottky contact, which had a barrier height of about 1.37 eV obtained by XPS measurements. Meanwhile, multilayered metals of Au/Pt/Ti were evaporated on the diamond sample to form ohmic contacts. Compared to a Au/Pt/Ti-Au/Pt/Ti diamond photodetector, the Au/Pt/Ti-Ag NW diamond photodetector exhibited relatively high responsivity under 220 nm (18 mA W-1), high linear dynamic range (41 dB), and short response time (0.12 s for rise time, 0.56 s for decay time). In particular, the Au/Pt/Ti-Ag NW diamond photodetector displayed high photocurrent of about 200 pA at zero-bias, indicating its potential for creating self-powered devices.
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Affiliation(s)
- F N Li
- Collaborative Innovation Center for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China. Institute of wide band gap semiconductors, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
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Huang K, Bi K, Liang C, Lin S, Wang WJ, Yang TZ, Liu J, Zhang R, Fan DY, Wang YG, Lei M. Graphite Carbon-Supported Mo2C Nanocomposites by a Single-Step Solid State Reaction for Electrochemical Oxygen Reduction. PLoS One 2015; 10:e0138330. [PMID: 26381266 PMCID: PMC4575164 DOI: 10.1371/journal.pone.0138330] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 08/28/2015] [Indexed: 11/26/2022] Open
Abstract
Novel graphite-molybdenum carbide nanocomposites (G-Mo2C) are synthesized by a typical solid state reaction with melamine and MoO3 as precursors under inert atmosphere. The characterization results indicate that G-Mo2C composites are composed of high crystallization and purity of Mo2C and few layers of graphite carbon. Mo2C nanoparticles with sizes ranging from 5 to 50 nm are uniformly supported by surrounding graphite layers. It is believed that Mo atom resulting from the reduction of MoO3 is beneficial to the immobilization of graphite carbon. Moreover, the electrocatalytic performances of G-Mo2C for ORR in alkaline medium are investigated by cyclic voltammetry (CV), rotating disk electrode (RDE) and chronoamperometry test with 3M methanol. The results show that G-Mo2C has a considerable catalytic activity and superior methanol tolerance performance for the oxygen reduction reaction (ORR) benefiting from the chemical interaction between the carbide nanoparticles and graphite carbon.
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Affiliation(s)
- K. Huang
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - K. Bi
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - C. Liang
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - S. Lin
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - W. J. Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China
- * E-mail: (WJW); (ML)
| | - T. Z. Yang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - J. Liu
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, China
| | - R. Zhang
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - D. Y. Fan
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - Y. G. Wang
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China
| | - M. Lei
- State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China
- * E-mail: (WJW); (ML)
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Lu SB, Miao LL, Guo ZN, Qi X, Zhao CJ, Zhang H, Wen SC, Tang DY, Fan DY. Broadband nonlinear optical response in multi-layer black phosphorus: an emerging infrared and mid-infrared optical material. Opt Express 2015; 23:11183-94. [PMID: 25969214 DOI: 10.1364/oe.23.011183] [Citation(s) in RCA: 202] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Black phosphorous (BP), the most thermodynamically stable allotrope of phosphorus, is a high-mobility layered semiconductor with direct band-gap determined by the number of layers from 0.3 eV (bulk) to 2.0 eV (single layer). Therefore, BP is considered as a natural candidate for broadband optical applications, particularly in the infrared (IR) and mid-IR part of the spectrum. The strong light-matter interaction, narrow direct band-gap, and wide range of tunable optical response make BP as a promising nonlinear optical material, particularly with great potentials for infrared and mid-infrared opto-electronics. Herein, we experimentally verified its broadband and enhanced saturable absorption of multi-layer BP (with a thickness of ~10 nm) by wide-band Z-scan measurement technique, and anticipated that multi-layer BPs could be developed as another new type of two-dimensional saturable absorber with operation bandwidth ranging from the visible (400 nm) towards mid-IR (at least 1930 nm). Our results might suggest that ultra-thin multi-layer BP films could be potentially developed as broadband ultra-fast photonics devices, such as passive Q-switcher, mode-locker, optical switcher etc.
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Li ZJ, Fan DY, Chen FQ, Yuan QY, Chow WS, Xie ZQ. Physiological integration enhanced the tolerance of Cynodon dactylon to flooding. Plant Biol (Stuttg) 2015; 17:459-465. [PMID: 25557716 DOI: 10.1111/plb.12254] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 09/01/2014] [Indexed: 06/04/2023]
Abstract
Many flooding-tolerant species are clonal plants; however, the effects of physiological integration on plant responses to flooding have received limited attention. We hypothesise that flooding can trigger changes in metabolism of carbohydrates and ROS (reactive oxygen species) in clonal plants, and that physiological integration can ameliorate the adverse effects of stress, subsequently restoring the growth of flooded ramets. In the present study, we conducted a factorial experiment combining flooding to apical ramets and stolon severing (preventing physiological integration) between apical and basal ramets of Cynodon dactylon, which is a stoloniferous perennial grass with considerable flooding tolerance. Flooding-induced responses including decreased root biomass, accumulation of soluble sugar and starch, as well as increased activity of superoxide dismutase (SOD) and ascorbate peroxidase (APX) in apical ramets. Physiological integration relieved growth inhibition, carbohydrate accumulation and induction of antioxidant enzyme activity in stressed ramets, as expected, without any observable cost in unstressed ramets. We speculate that relief of flooding stress in clonal plants may rely on oxidising power and electron acceptors transferred between ramets through physiological integration.
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Affiliation(s)
- Z J Li
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
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Gao CC, Cai BL, Zhang XM, Fan DY, Cui TC, Zong MK, Ren GX. [Isolation and electron microscope observation of the large plasmid in Bacillus sphaericus Ts-1]. Wei Sheng Wu Xue Bao 1986; 26:42-6. [PMID: 3604207] [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: 01/06/2023]
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