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Bian RH, Huang SX, Zhu JY, Wu J, Fan KW, Hu ZC, Xu YB, Yu QH, Zhang T, Li XY, Chen SZ. [Establishment of a topographic map assessment system for facial and cervical wounds and scars of burn patients based on the Delphi method]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:1115-1121. [PMID: 38129297 DOI: 10.3760/cma.j.cn501225-20230905-00075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Objective: To construct a targeted and accurate evaluation system for facial and cervical wounds and scars of burn patients. Methods: The method combining literature analysis and survey research was adopted, and the basic principles of item system construction were followed. From June to August 2020, based on the aesthetic standards of facial and cervical plastic surgery, the topographic map assessment system for facial and cervical wounds and scars of burn patients was preliminarily formed, focusing on the assessment of wounds and scars in the necks and faces of patients after burns. In September 2020, 38 experts in the relevant fields were consulted in advance and the questionnaire was revised according to the experts' opinions. From December 2020 to March 2021, the Delphi method was applied to conduct inquiry by correspondence with 35 experts in relevant fields from Guangzhou, Shenzhen, Shanghai, Beijing, and other cities, who met the inclusion criteria, and the items were screened and established. The effective recovery rate of inquiry questionnaire was calculated to determine the level of enthusiasm of experts, the average authority coefficient of all items was calculated to determine the level of expert authority, the average importance expert score, the average coefficient of variation, and the average full score rate of all the third-level items were calculated to determine the concentration of expert opinions, the average coefficients of variation and Kendall's harmony coefficients of the importance, sensitivity, and operability expert scores of all the third-level items were calculated to determine the degree of coordination of expert opinions. The Kendall's harmony coefficients for the importance, sensitivity, and operability expert scores of all the third-level items were statistically analyzed with chi-square test. Results: Among the 35 experts consulted by Delphi method, mainly were male, aged (48±10) years, with 8-38 years of working experience, mainly with associate senior titles and above, all with a bachelor's degree or above education background, and of whom 11 were burn experts, 7 were wound repair experts, 4 were plastic surgery experts, and 13 were rehabilitation medicine experts. Finally, a topographic map assessment system for facial and cervical wounds and scars of burn patients was formed, including 4 first-level items, 21 second-level items, 40 third-level items, and 1 mask. The effective recovery rate of inquiry questionnaire was 100% (35/35). The average authority coefficient of all items was 0.89. The average importance expert score was 4.67, the average coefficient of variation of importance expert score was 0.01, and the average full score rate of all the third-level items was 86.3%. The average coefficients of variation of the importance, sensitivity, and operability expert scores of all the third-level items were 0.01, 0.01, and 0.02, respectively. The Kendall's harmony coefficients for the importance, sensitivity, and operability expert scores of all the third-level items were statistically significant (with χ2 values of 1 201.53, 745.67, and 707.07, respectively, P<0.05). Conclusions: The established topographic map assessment system for facial and cervical wounds and scars of burn patients has high scientificity and reliability, which can be used for the evaluation of facial and neck wounds or scars in burn patients.
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Affiliation(s)
- R H Bian
- Department of Rehabilitation Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - S X Huang
- Department of Burns and Wound Repair Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - J Y Zhu
- Department of Burns and Wound Repair Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - J Wu
- Department of Burns and Plastic Surgery, the First Affiliated Hospital, Shenzhen University, Shenzhen 518035, China
| | - K W Fan
- Department of Burns and Plastic Surgery, the First Affiliated Hospital, Shenzhen University, Shenzhen 518035, China
| | - Z C Hu
- Department of Burns and Wound Repair Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Y B Xu
- Department of Burns and Wound Repair Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Q H Yu
- Department of Rehabilitation Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - T Zhang
- Department of Rehabilitation Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - X Y Li
- Department of Rehabilitation Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - S Z Chen
- Department of Rehabilitation Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
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Xia XM, Yang MQ, Li CL, Huang SX, Jin WT, Shen TT, Wang F, Li XH, Yoichi W, Zhang LH, Zheng YR, Wang XQ. Spatiotemporal evolution of the global species diversity of Rhododendron. Mol Biol Evol 2021; 39:6413646. [PMID: 34718707 PMCID: PMC8760938 DOI: 10.1093/molbev/msab314] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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] [Indexed: 11/17/2022] Open
Abstract
Evolutionary radiation is a widely recognized mode of species diversification, but its underlying mechanisms have not been unambiguously resolved for species-rich cosmopolitan plant genera. In particular, it remains largely unknown how biological and environmental factors have jointly driven its occurrence in specific regions. Here, we use Rhododendron, the largest genus of woody plants in the Northern Hemisphere, to investigate how geographic and climatic factors, as well as functional traits, worked together to trigger plant evolutionary radiations and shape the global patterns of species richness based on a solid species phylogeny. Using 3,437 orthologous nuclear genes, we reconstructed the first highly supported and dated backbone phylogeny of Rhododendron comprising 200 species that represent all subgenera, sections, and nearly all multispecies subsections, and found that most extant species originated by evolutionary radiations when the genus migrated southward from circumboreal areas to tropical/subtropical mountains, showing rapid increases of both net diversification rate and evolutionary rate of environmental factors in the Miocene. We also found that the geographically uneven diversification of Rhododendron led to a much higher diversity in Asia than in other continents, which was mainly driven by two environmental variables, that is, elevation range and annual precipitation, and were further strengthened by the adaptation of leaf functional traits. Our study provides a good example of integrating phylogenomic and ecological analyses in deciphering the mechanisms of plant evolutionary radiations, and sheds new light on how the intensification of the Asian monsoon has driven evolutionary radiations in large plant genera of the Himalaya-Hengduan Mountains.
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Affiliation(s)
- Xiao-Mei Xia
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Miao-Qin Yang
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Cong-Li Li
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Si-Xin Huang
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei-Tao Jin
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Ting-Ting Shen
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Fei Wang
- West China Subalpine Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Sichuan 611834, China
| | - Xiao-Hua Li
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiangxi 332900, China
| | - Watanabe Yoichi
- Graduate School of Horticulture, Chiba University, Chiba 271-8510, Japan
| | - Le-Hua Zhang
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiangxi 332900, China
| | - Yuan-Run Zheng
- West China Subalpine Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Sichuan 611834, China.,State Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Xiao-Quan Wang
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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Huang SX, Mou JF, Luo Q, Mo QH, Zhou XL, Huang X, Xu Q, Tan XD, Chen X, Liang CQ. Anti-Hepatitis B Virus Activity of Esculetin from Microsorium fortunei In Vitro and In Vivo. Molecules 2019; 24:E3475. [PMID: 31557836 PMCID: PMC6803987 DOI: 10.3390/molecules24193475] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/14/2019] [Accepted: 09/24/2019] [Indexed: 02/07/2023] Open
Abstract
Coumarins are widely present in a variety of plants and have a variety of pharmacological activities. In this study, we isolated a coumarin compound from Microsorium fortunei (Moore) Ching; the compound was identified as esculetin by hydrogen and carbon spectroscopy. Its anti-hepatitis B virus (HBV) activity was investigated in vitro and in vivo. In the human hepatocellular liver carcinoma 2.2.15 cell line (HepG2.2.15) transfected with HBV, esculetin effecting inhibited the expression of the HBV antigens and HBV DNA in vitro. Esculetin inhibited the expression of Hepatitis B virus X (HBx) protein in a dose-dependent manner. In the ducklings infected with duck hepatitis B virus (DHBV), the levels of DHBV DNA, duck hepatitis B surface antigen (DHBsAg), duck hepatitis B e-antigen (DHBeAg), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) decreased significantly after esculetin treatment. Summing up the above, the results suggest that esculetin efficiently inhibits HBV replication both in vitro and in vivo, which provides an opportunity for further development of esculetin as antiviral drug.
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Affiliation(s)
- Si-Xin Huang
- College of Pharmacy, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Jun-Fei Mou
- Biotechnology Institute, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Qin Luo
- Science Experiment Center, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Qing-Hu Mo
- College of Pharmacy, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Xian-Li Zhou
- Biotechnology Institute, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Xiao Huang
- College of Pharmacy, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Qing Xu
- Guangxi Key Laboratory of Molecular Medicine in Liver Injury and Repair, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Xiang-Duan Tan
- College of Pharmacy, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Xu Chen
- College of Pharmacy, Guilin Medical University, Guilin 541004, Guangxi, China.
| | - Cheng-Qin Liang
- College of Pharmacy, Guilin Medical University, Guilin 541004, Guangxi, China.
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Zhou XL, Luo Q, Huang SX, Wang PC, Xu Q, Huang X, Liang CQ, Chen X. New tetralone derivatives from the leaves of Cyclocarya paliurus. J Asian Nat Prod Res 2019; 21:157-164. [PMID: 29210285 DOI: 10.1080/10286020.2017.1409733] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
Two new tetralone derivatives, named cyclopalosides A (1) and B (2), were isolated from the leaves of Cyclocarya paliurus by column chromatography on silica gel, reversed-phase C18 silica gel and preparative HPLC. Their chemical structures were established on the basis of extensive analyses of spectroscopic data. Their structural characteristic is tetralone glycoside with a caffeoyl unit. The antioxidant activities of compound 1 were evaluated by using hydroxyl, superoxide anion, and DPPH radical scavenging assay.
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Affiliation(s)
- Xian-Li Zhou
- a College of Pharmacy , Guilin Medical University , Guilin 541004 , China
| | - Qin Luo
- a College of Pharmacy , Guilin Medical University , Guilin 541004 , China
| | - Si-Xin Huang
- a College of Pharmacy , Guilin Medical University , Guilin 541004 , China
| | - Peng-Cheng Wang
- a College of Pharmacy , Guilin Medical University , Guilin 541004 , China
| | - Qin Xu
- a College of Pharmacy , Guilin Medical University , Guilin 541004 , China
- b Guangxi Key Laboratory of Molecular Medicine in Liver Injury and Repair , Guilin Medical University , Guilin 541001 , China
| | - Xiao Huang
- a College of Pharmacy , Guilin Medical University , Guilin 541004 , China
| | - Cheng-Qin Liang
- a College of Pharmacy , Guilin Medical University , Guilin 541004 , China
| | - Xu Chen
- a College of Pharmacy , Guilin Medical University , Guilin 541004 , China
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5
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Jin JH, Huang SX, Liang YY, Cui ZZ. [Uvuplopalatal flap in OSAHS patients with anteriorand posterior pharyngeal plane stenosis]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1817-1820. [PMID: 30550217 DOI: 10.13201/j.issn.1001-1781.2018.23.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Indexed: 06/09/2023]
Abstract
Objective: Observation of the effect of uvuplopalatal flap for OSAHS patients with anterior and posterior pharyngeal stenosis. Method: Fifty-six patients with OSAHS who were mainly anterior posterior stenosis in the velopharyngeal plane were selected. Patients with suspending uvuplopalatal flap were used as observation group (30 cases). Patients with UPPP were used as control group (26 cases). The investigation and comparison of AHI, SaO₂, scars, throat foreign body sensation, pharynx desiccation, pharynx' s tightness, pharynx discomfort and surgical satisfaction were investigated at 6-8 months after the operation. Restul: At 6-8 months after operation, the AHI and SaO₂ of the two groups were significantly improved compared with those before operation(P<0.01). However, there were significant differences(P<0.01) among the indexes of scar formation, throat foreign body, sensation pharynx desiccation, pharynx' s tightness, pharynx discomfort and surgical satisfaction. Conclusion: In the OSAHS patients with anterior and posterior pharyngeal stenosis, the effect of UPF was better than that of UPPP among the indexes of scar formation, pharyngeal symptoms and surgical satisfaction.
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Affiliation(s)
- J H Jin
- Department of Otorhinolaryngology, Affiliated Hospital of Yanbian University College of Medicine, Yanji, 133000, China
| | - S X Huang
- Department of Otorhinolaryngology, Affiliated Hospital of Yanbian University College of Medicine, Yanji, 133000, China
| | - Y Y Liang
- Department of Otorhinolaryngology, Affiliated Hospital of Yanbian University College of Medicine, Yanji, 133000, China
| | - Z Z Cui
- Department of Otorhinolaryngology, Affiliated Hospital of Yanbian University College of Medicine, Yanji, 133000, China
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6
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Wang TT, Huang SX, Zhang XM, Zhang XW, Luo YX. [The relationship between oxygen saturation and related respiratory events in patients with obstructive sleep apnea-hypopnea syndrome]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:170-173. [PMID: 29871216 DOI: 10.13201/j.issn.1001-1781.2017.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Indexed: 06/08/2023]
Abstract
Objective:To explore the relationship between variation of hemoglobin saturation and related respiratory events in patients with obstructive sleep apnea and hypopnea syndrome (OSAHS).Method:According to the SaO₂, the respiratory events were divided into two groups, followed or not followed the second events (SRE and N-SRE). Four features were extracted from SaO₂ and compared within groups under SRE versus N-SRE, and comparisons were also developed between moderate patients and severe patients.Result:ΔSaO₂, max, the duration and Dvmax was significantly higher in SRE than N-SRE (P< 0.01), while Nadir was significantly lower in SRE than N-SRE (P< 0.01). There was also significant difference in the blood oxygen index between moderate and severe patients. The change of SaO₂ is correlated with the ventilation restoration. The results also suggest that the severity of the patient's condition will affect the change of SaO₂ related indicators. Conclusion:This study provides information on the further study of ventilation restoration. Moreover, this study may provide a possible solution for the treatment of OSAHS.
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Affiliation(s)
- T T Wang
- School of Engineering, Sun Yat-sen University,Guangzhou, 510006, China
| | - S X Huang
- School of Engineering, Sun Yat-sen University,Guangzhou, 510006, China
| | - X M Zhang
- Department of Otolaryngology, the Sixth Affiliated Hosptial of Sun Yat-sen University
| | - X W Zhang
- Department of Otolaryngology, the First Affiliated Hosptial of Guangzhou Medical University
| | - Y X Luo
- Department of Otolaryngology, the First Affiliated Hosptial of Guangzhou Medical University
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
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Huang SX, Liang JL, Sui WG, Lin H, Xue W, Chen JJ, Zhang Y, Gong WW, Dai Y, Ou ML. EDA mutation as a cause of hypohidrotic ectodermal dysplasia: a case report and review of the literature. Genet Mol Res 2015; 14:10344-51. [PMID: 26345974 DOI: 10.4238/2015.august.28.21] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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
Ectodermal dysplasia (ED) represents a collection of rare disorders that result from a failure of development of the tissues derived from the embryonic ectoderm. ED is often associated with hair, teeth, and skin abnormalities, which are serious conditions affecting the quality of life of the patient. To date, a large number of genes have been found to be associated with this syndrome. Here, we report a patient with hypohidrotic ED (HED) without family history. We identified that this patient's disorder arises from an X-linked HED with a mutation in the EDA gene (G299D) found by whole-exome sequencing. In addition, in this paper we summarize the disease-causing mutations based on current literature. Overall, recent clinical and genetic research involving patients with HED have uncovered a large number of pathogenic mutations in EDA, which might contribute to a full understanding of the function of EDA and the underlying mechanisms of HED caused by EDA mutations.
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Affiliation(s)
- S X Huang
- Medical Center of Stomatology of the Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | | | - W G Sui
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - H Lin
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - W Xue
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - J J Chen
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - Y Zhang
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - W W Gong
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - Y Dai
- Clinical Medical Research Center of the Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - M L Ou
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
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Abstract
The Skyrmion state in epitaxial B20 FeGe(111) thin films, determined by the topological Hall effect, is greatly extended in the phase diagram to cover all temperatures up to the Curie temperature T(C)≈271 K and over a wide magnetic field range that includes a zero magnetic field. The properties of the Skyrmion phase can be controlled and manipulated by the film thickness, which has a strong effect on the stabilization of Skyrmions.
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Affiliation(s)
- S X Huang
- Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA.
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Huang SX, Chien CL, Thampy V, Broholm C. Control of tetrahedral coordination and superconductivity in FeSe0.5Te0.5 thin films. Phys Rev Lett 2010; 104:217002. [PMID: 20867128 DOI: 10.1103/physrevlett.104.217002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Indexed: 05/29/2023]
Abstract
We demonstrate a close relationship between superconductivity and the dimensions of the Fe-Se(Te) tetrahedron in FeSe0.5Te0.5. This is done by exploiting thin film epitaxy, which provides controlled biaxial stress, both compressive and tensile, to distort the tetrahedron. The Se/Te height within the tetrahedron is found to be of crucial importance to superconductivity, in agreement with the scenario that (π, π) spin fluctuations promote superconductivity in Fe superconductors.
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Affiliation(s)
- S X Huang
- Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA
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Chen TY, Huang SX, Chien CL, Stiles MD. Enhanced magnetoresistance induced by spin transfer torque in granular films with a magnetic field. Phys Rev Lett 2006; 96:207203. [PMID: 16803201 DOI: 10.1103/physrevlett.96.207203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Indexed: 05/10/2023]
Abstract
Spin-transfer torques (STT) provide a mechanism to alter the magnetic configurations of magnetic heterostructures, a result previously only achieved by an external magnetic field. In granular solids, we demonstrate a new form of STT effect that can be exploited to induce a large spin disorder when combined with a large magnetic field. We have obtained a very large magnetoresistance effect in excess of 400% at 4.2 K in a large magnetic field, the largest ever reported in any metallic systems. The STT characteristics of granular solids differ significantly from those of multilayers, showing no STT effect at low magnetic fields but prominent STT effects at high fields.
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Affiliation(s)
- T Y Chen
- Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA
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Cai CC, Chen S, Cheng DX, Guo H, Wang DW, Huang SX, Li JW, Wang H. Combined gene transfer of human decay accelerating factor and Bcl-XI provides protection to porcine xenograft endothelial cells. Transplant Proc 2003; 35:521-2. [PMID: 12591513 DOI: 10.1016/s0041-1345(02)03931-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- C C Cai
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Huang SX, Sauer WC, Marty B. Ileal digestibilities of neutral detergent fiber, crude protein, and amino acids associated with neutral detergent fiber in wheat shorts for growing pigs. J Anim Sci 2001; 79:2388-96. [PMID: 11583425 DOI: 10.2527/2001.7992388x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [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: 11/13/2022] Open
Abstract
An experiment was carried out to determine the ileal digestibility values of NDF, CP, and AA associated with NDF in different samples of wheat shorts consisting of different proportions of wheat bran, shorts, and flour, hereafter referred to as wheat fractions. Six barrows (average initial BW 37.2 kg, and fitted with a simple T-cannula at the distal ileum) were fed one of six experimental diets, formulated to contain 17% CP (as-fed basis), according to a 6 x 6 Latin square design. Diets A, B, C, D, and E contained 17.53% soybean meal (SBM), which contributed 50% CP to these diets. The diets contained shorts, bran, or flour alone or in combination, contributing the remaining 50% CP to these diets. The proportions of shorts, bran, and flour in the wheat fractions were 70% shorts and 30% bran in diet A, 85% shorts and 15% bran in diet B, 100% shorts in diet C, 85% shorts and 15% flour in diet D, and 70% shorts and 30% flour in diet E. Diet F contained 35.05% soybean meal, which provided the sole source of dietary CP. Chromic oxide was used as a digestibility marker. During the first experimental period, the daily dietary allowance was provided at a rate of 5% (wt/wt) of the average BW. Thereafter, the allowance was increased by 100 g at each successive period. Each experimental period comprised 12 d. Following a 7-d adaptation period, feces were collected for 48 h and ileal digesta for a total of 24 h. The contribution of CP and AA associated with NDF gradually decreased from wheat fraction A to E, reflecting a decrease in NDF content from 42.3 to 29.5%. Of the indispensable AA in wheat fraction A, the contributions ranged from 12.9 to 15.9%. In wheat fraction E, these values ranged from 9.0 to 11.3%. The ileal digestibility values of NDF ranged from 11.8% in diet E to 17.1% in diet C (P > 0.05). There were usually no differences (P > 0.05) in the ileal digestibilities of AA associated with NDF between the wheat fractions. However, with the exception of lysine and tyrosine, there were negative correlations (P < 0.05) between the apparent ileal AA digestibilities and the content (%) of CP associated with NDF in the wheat fractions. Furthermore, there was no effect (P > 0.05) of the diets containing wheat fractions on the recovery of bacterial protein and mucin in ileal digesta.
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Affiliation(s)
- S X Huang
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Canada
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DeVita RJ, Walsh TF, Young JR, Jiang J, Ujjainwalla F, Toupence RB, Parikh M, Huang SX, Fair JA, Goulet MT, Wyvratt MJ, Lo JL, Ren N, Yudkovitz JB, Yang YT, Cheng K, Cui J, Mount G, Rohrer SP, Schaeffer JM, Rhodes L, Drisko JE, McGowan E, MacIntyre DE, Vincent S, Carlin JR, Cameron J, Smith RG. A potent, nonpeptidyl 1H-quinolone antagonist for the gonadotropin-releasing hormone receptor. J Med Chem 2001; 44:917-22. [PMID: 11300873 DOI: 10.1021/jm000275p] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [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: 11/28/2022]
Abstract
Extensive development of the structure-activity relationships of a screening lead determined three important pharmacophores for gonadotropin-releasing hormone (GnRH) receptor antagonist activity. Incorporation of the 3,4,5-trimethylphenyl group at the 3-position, 2-(2(S)-azetidinyl)ethoxy group at the 4-position, and N-4-pyrimidinylcarboxamide at the 6-position of the quinolone core resulted in the identification of 4-(2-(azetidin-2(S)-yl)ethoxy)-7-chloro-2-oxo-3-(3,4,5-trimethylphenyl)-1,2-dihydroquinoline-6-carboxylic acid pyrimidin-4-ylamide (1) as a potent antagonist of the GnRH receptor. A 10(4)-fold increase in in vitro binding affinity is observed for the GnRH receptor as compared to the initial screening lead. Compound 1 exhibits nanomolar binding activity and functional antagonism at the human receptor and is 7-fold less active at the rhesus receptor. Intravenous administration of compound 1 to rhesus monkeys results in a significant decrease of the serum levels of downstream hormones, luteinizing hormone (79% decrease in area under the curve) and testosterone (92% decrease in area under the curve), at a dose of 3 mg/kg. Quinolone 1 is a potent nonpeptidyl antagonist for the human GnRH receptor that is efficacious for the suppression of luteinizing hormone and testosterone in primates.
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Affiliation(s)
- R J DeVita
- Departments of Medicinal Chemistry, Biochemistry & Physiology, Pharmacology, and Drug Metabolism, Merck Research Laboratories, P.O. Box 2000, Rahway, New Jersey 07065-0900, USA.
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Young JR, Huang SX, Chen I, Walsh TF, DeVita RJ, Wyvratt MJ, Goulet MT, Ren N, Lo J, Yang YT, Yudkovitz JB, Cheng K, Smith RG. Quinolones as gonadotropin releasing hormone (GnRH) antagonists: simultaneous optimization of the C(3)-aryl and C(6)-substituents. Bioorg Med Chem Lett 2000; 10:1723-7. [PMID: 10937733 DOI: 10.1016/s0960-894x(00)00318-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [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: 12/01/2022]
Abstract
A series of 3-arylquinolones was prepared and evaluated for their ability to act as gonadotropin releasing hormone (GnRH) antagonists. A variety of substitution patterns of the 3-aryl substituent are described. The 3,4,5-trimethylphenyl substituent (23h) was found to be optimal.
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Affiliation(s)
- J R Young
- Department of Medicinal Chemistry, Merck Research Laboratories, Rahway, NJ 07065, USA.
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Walsh TF, Toupence RB, Young JR, Huang SX, Ujjainwalla F, DeVita RJ, Goulet MT, Wyvratt MJ, Fisher MH, Lo JL, Ren N, Yudkovitz JB, Yang YT, Cheng K, Smith RG. Potent antagonists of gonadotropin releasing hormone receptors derived from quinolone-6-carboxamides. Bioorg Med Chem Lett 2000; 10:443-7. [PMID: 10743944 DOI: 10.1016/s0960-894x(00)00024-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [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: 12/01/2022]
Abstract
SAR studies which focused upon the C-6 position of a recently described series of quinolone gonadotropin releasing hormone antagonists are reported. Synthetic access to diverse quinolone-6-carboxamides was achieved via the palladium-catalyzed amino-carbonylation reactions of iodide 4 with various amines. Amides related to 9y were especially potent, functional antagonists of rat and human GnRH receptors.
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Affiliation(s)
- T F Walsh
- Department of Medicinal Chemistry, Merck Research Laboratories, Rahway, NJ 07065-0900, USA
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Abstract
An experiment was carried out to investigate the variability in apparent ileal amino acid (AA) digestibilities in simulated samples of wheat shorts consisting of different proportions of wheat bran (WB), wheat shorts (WS), and wheat flour (WF), hereafter referred to as wheat fractions. The proportions of WS, WB, and WF and the NDF content (DM basis) of the wheat fractions were as follows: A, 70% WS, 30% WB, and 42.3% NDF; B, 85% WS, 15% WB, and 41.8% NDF; C, 100% WS and 41.3% NDF; D, 85% WS, 15% WF, and 35.2% NDF; and E, 70% WS, 30% WF, and 29.5% NDF. Six barrows, average initial BW of 37.2 kg, fitted with a simple T-cannula at the distal ileum, were fed one of six experimental diets according to a 6 x 6 Latin square design. Six diets were formulated to contain 17% CP (as-fed basis). Diets A, B, C, D, and E contained 17.53% soybean meal (SBM), which contributed 50% of the CP in these diets. The wheat fractions contributed the remaining 50% of the CP in these diets. Diet F contained 35.05% SBM, which was the sole source of dietary CP. Chromic oxide was used as the digestibility marker. During the first experimental period, the daily dietary allowance was provided at a rate of 5% (wt/wt) of the average BW. Thereafter, the daily dietary allowance was increased by 100 g at each successive period. Each experimental period comprised 12 d. Following a 7-d adaptation period, feces were collected for 48 h and ileal digesta for a total of 24 h. The apparent ileal digestibilities of AA in the wheat fractions were calculated using the difference method. The digestibilities were usually lowest in the wheat fractions containing WB and highest in those containing no WB. The average of the digestibilities of the indispensable AA was 63.5% for wheat fraction A, which contained 30% WB, and 71.9% for wheat fraction C, which did not contain WB. There were no differences (P > .05) in lysine digestibilities among the wheat fractions, which ranged from 54.7 to 64.1%. Of the indispensable AA, with the exception of arginine, lysine, and methionine, the apparent ileal digestibility values of AA were negatively correlated (P < .05) with the NDF content in the wheat fractions.
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Affiliation(s)
- S X Huang
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Canada
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Li S, Sauer WC, Huang SX, Gabert VM. Effect of beta-glucanase supplementation to hulless barley- or wheat-soybean meal diets on the digestibilities of energy, protein, beta-glucans, and amino acids in young pigs. J Anim Sci 1996; 74:1649-56. [PMID: 8818811 DOI: 10.2527/1996.7471649x] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.5] [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: 02/02/2023] Open
Abstract
Studies were carried out to determine the effect of beta-glucanase supplementation to hulless barley-soybean meal (HB+SBM) or wheat-soybean meal (W+SBM) diets on the digestibilities of GE, CP, beta-glucans, and amino acids. Twelve barrows, average BW 7.3 kg, were fitted with a simple T-cannula at the distal ileum, approximately 5 cm from the ileo-cecal sphincter. After a 7-d recuperation period, six pigs were allotted to each dietary treatment according to a two-period crossover design. Both diets were formulated to contain 20% CP without and with supplementation of .2% beta-glucanase. beta-glucanase refers to a mixture of enzymes with endo- and exo-beta-glucanase and beta-glucosidase activities. Chromic oxide was included as a digestibility marker. The pigs were fed three times daily at 0800, 1600, and 2400 and the daily allowance was offered at a rate of 5% of BW. Each experimental period lasted 9 d. Feces were collected for 48 h on d 6 and 7 and ileal digesta for a total of 24 h on d 8 and 9. beta-glucanase supplementation to the HB+SBM diet increased (P < .05 or P < .01) the ileal digestibilities of GE, CP, beta-glucans, and the majority of the amino acids and the fecal digestibilities of GE, CP, and all amino acids measured; the fecal digestibility of beta-glucans in the HB+SBM diet was not affected by beta-glucanase supplementation. There was no effect (P > .05) of beta-glucanase supplementation to the W+SBM diet on the ileal digestibilities of any criteria measured except for beta-glucans (P < .05). The supplementation of beta-glucanase to the W+SBM diet increased (P < .05) the fecal digestibility of energy but not (P > .05) the other criteria measured.
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Affiliation(s)
- S Li
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Canada
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Dissanayake AS, Huang SX, Jiang HX, Lin JY. Charge storage and persistent photoconductivity in a CdS0.5Se0.5 semiconductor alloy. Phys Rev B Condens Matter 1991; 44:13343-13348. [PMID: 9999536 DOI: 10.1103/physrevb.44.13343] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Huang SX, Lin RM. Multiphoton quantum-statistical theory in driven optical systems without adiabatic elimination. Phys Rev A Gen Phys 1989; 39:221-232. [PMID: 9901006 DOI: 10.1103/physreva.39.221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Qi LY, Zhang ZH, Liu YP, Lin BQ, Zhao GL, Huang SX, Wei S. Acupuncture treatment of cerebrovascular occlusion and changes in hemorrheological indices during treatment; a clinical analysis of 100 cases. J TRADIT CHIN MED 1986; 6:105-10. [PMID: 2430145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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