1
|
Jiang MS, Tao YH, Wang YW, Lu C, Young DJ, Lang JP, Ren ZG. Reversible Solid-State Phase Transitions between Au-P Complexes Accompanied by Switchable Fluorescence. Inorg Chem 2020; 59:3072-3078. [PMID: 32058694 DOI: 10.1021/acs.inorgchem.9b03412] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Six complexes {(3-bdppmapy)(AuCl)2}n (1-6; 3-bdppmapy = N,N'-bis(diphenylphosphanylmethyl)-3-aminopyridine and tht = tetrahydrothiophene) were simultaneously formed by the reaction of Au(tht)Cl and 3-bdppmapy in CH2Cl2 followed by infusion with hexane. Complexes 4-6 could be produced independently by volatilizing solvent in air, solid-state heating, or solvothermal reaction. The PPh2-Au-Cl moieties extended in different directions, forming Au-Au and Au-Au-Au interactions. Complex 4 could be converted to 5 by heating to 130 °C, with the cleavage of one Au-Au bond, while 5 reverted back to 4 upon exposure to CH2Cl2 vapor over 11 h. This solid-state phase transition could be recycled and was accompanied by a change in solid-state fluorescence, without obvious intensity decay over five cycles. The reason for both the phase transition and difference in photoluminescence is related to the different numbers and strengths of aurophilic interactions in each complex that could be modeled by density functional theory calculations.
Collapse
Affiliation(s)
- Meng-Sha Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Yan-Hui Tao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Yu-Wei Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Chengrong Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - David James Young
- College of Engineering, Information Technology and Environment, Charles Darwin University, Northern Territory 0909, Australia
| | - Jian-Ping Lang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Zhi-Gang Ren
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People's Republic of China.,Collaborative Innovation Center for New-type Urbanization and Social Governance of Jiangsu Province, Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| |
Collapse
|
2
|
Sun SL, Xie YM, Zhang Y, Wang ZF, Yang J, Wang DQ, Jiao Y, Chen J, Tao YH. [Study on relationship between constitution and syndrome of MMP-9, IL-6 and MTHFR gene in patients with ischemic stroke]. Zhongguo Zhong Yao Za Zhi 2019; 42:3602-3612. [PMID: 29218949 DOI: 10.19540/j.cnki.cjcmm.2017.0139] [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] [Received: 06/28/2017] [Indexed: 11/18/2022]
Abstract
By studying the relationship between syndromes, physique and MMP-9, IL-6 and MTHFR gene polymorphisms in patients with ischemic stroke,The relationship between MMP-9, IL-6 and MTHFR gene polymorphism was analyzed in patients with ischemic stroke.The data were collected by collecting the data of patients with ischemic stroke, and the statistical analysis was carried out. Syndrome:61 cases of ischemic stroke patients with stroke phlegm stasis syndrome in patients with the highest frequency, a total of 30 cases; Physical constitution: phlegm is ischemic stroke patients prone to physical, a total of 20 cases; The analysis of the relationship between constitution and syndrome shows that the patients with qi deficiency constitution tend to show qi deficiency and blood stasis syndrome after onset, The analysis of the relationship between constitution and syndrome shows that the patients with qi deficiency constitution tend to show qi deficiency and blood stasis syndrome after onset, Phlegm constitution and physical condition after the onset of symptoms tend to wind phlegm stasis syndrome; Syndrome and MMP-9, IL-6 relationship:The distribution of MMP-9 and IL-6 in patients with qi and phlegm stasis syndrome and qi deficiency and blood stasis syndrome was significantly different from that in Z test (P<0.05). The level of MMP-9 in patients with qi deficiency and blood stasis syndrome was significantly higher than that in patients with wind phlegm and blood stasis syndrome;The level of IL-6 in patients with phlegm and blood stasis syndrome was significantly higher than that in patients with qi deficiency and blood stasis syndrome. Syndrome, constitution and MTHFR gene polymorphism: among the 61 samples, 34 were heterozygous mutations, 15 were pure and mutated, 12 had no mutation, The mutation rate of this locus was 4.08 times that of patients without mutations.The genotype of MTHFR C677T in patients with phlegm dampness tends to be CT genotype. Wind phlegm stasis syndrome in patients with easy to appear after the TT genotype; Yin deficiency syndrome in patients prone to miscellaneous and mutations, the performance of CT genotype; Analysis of the relationship between syndromes and physique in patients with ischemic stroke,Phlegm and dampness, flat quality patients after the onset of easy to show the wind phlegm stasis syndrome; Qi deficiency after the onset of symptoms in patients with Qi and blood stasis. Suggesting that before the onset of such as for the partial physical conditioning, may be on the prevention of ischemic stroke have a certain effect; Analysis of the relationship between syndromes and MMP-9 and IL-6 in patients with ischemic stroke, Wind phlegm stasis syndrome and IL-6 levels are related, Qi deficiency and blood stasis syndrome and MMP-9 levels are related. Analysis of the relationship between syndromes and MTHFR gene polymorphism in patients with ischemic stroke, TT genotype after the onset of symptoms prone to wind phlegm stasis syndrome, CT genotype patients after the onset of easy manifestations of Yin deficiency wind syndrome; Analysis of the relationship between physique and MTHFR gene polymorphism in patients with ischemic stroke, CT genotype is easy to show phlegm.For more in-depth understanding of pathogenesis of ischemic stroke to provide the basis, For the clinical treatment and prevention to provide intervention strategies.
Collapse
Affiliation(s)
- Shuai-Ling Sun
- Institute of Basic Research in Clinical Medicine, China Academy of Chineses Medical Sciences, Beijing 100700, China
| | - Yan-Ming Xie
- Institute of Basic Research in Clinical Medicine, China Academy of Chineses Medical Sciences, Beijing 100700, China
| | - Yin Zhang
- Institute of Basic Research in Clinical Medicine, China Academy of Chineses Medical Sciences, Beijing 100700, China
| | - Zhi-Fei Wang
- Institute of Basic Research in Clinical Medicine, China Academy of Chineses Medical Sciences, Beijing 100700, China
| | - Jing Yang
- Institute of Basic Research in Clinical Medicine, China Academy of Chineses Medical Sciences, Beijing 100700, China
| | - Dan-Qiao Wang
- Medical Experiment Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yue Jiao
- Medical Experiment Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jun Chen
- Wuhan Branch, Beijing Liuhe Large Gene Technology Co., Ltd., Wuhan 430000, China
| | - Yan-Hui Tao
- Wuhan Branch, Beijing Liuhe Large Gene Technology Co., Ltd., Wuhan 430000, China
| |
Collapse
|
3
|
Tao YH, Jiang DY, Xu HB, Yang XL. Inhibitory effect of Erigeron breviscapus extract and its flavonoid components on GABA shunt enzymes. Phytomedicine 2008; 15:92-7. [PMID: 17689232 DOI: 10.1016/j.phymed.2007.06.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2006] [Accepted: 05/07/2007] [Indexed: 05/16/2023]
Abstract
Gamma-aminobutyric acid (GABA), the major inhibitory neurotransmitter, is metabolized by the successive action of GABA transaminase (GABA-T) and succinic semialdehyde dehydrogenase (SSADH). Inhibition of both enzymes in brain tissues increases the GABA level and may have therapeutic applications in neurological diseases. Erigeron breviscapus ethanol extract was evaluated for their effect on both enzymes. This extract, its ethyl acetate fraction and aqueous fraction, significantly inhibited them at >100 microg/ml. Flavonoid components of E. breviscapus potently and noncompetitively inhibited both enzymes, and the different structure-activity relations were observed with respect to inhibition of both enzymes. Baicalein was the most potent inhibitor for GABA-T with an IC50 value of 12.8+/-1.2 microM, and scutellarein exhibited the best inhibitory effect on SSADH with an IC50 value of 7.20+/-0.9 microM. The present results may imply new pharmacological actions of E. breviscapus and contribute partially to the beneficial effect of the herb and flavonoids on the central nervous system.
Collapse
Affiliation(s)
- Y H Tao
- Institute of Materia Medica, College of Life Science and Technology, Huazhong University of Science and Technology, 430074 Wuhan, China
| | | | | | | |
Collapse
|