1
|
Zhang JH, Miao HJ, Xin H, Wang G, Yang X, Wang X, Gao P, Duan XH, Guo LN. Photoredox-catalyzed alkylarylation of activated alkenes via a ring-opening/Truce-Smiles rearrangement cascade. Chem Commun (Camb) 2024; 60:5334-5337. [PMID: 38668748 DOI: 10.1039/d4cc01324g] [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: 05/15/2024]
Abstract
A photoredox-catalyzed alkylarylation of activated alkenes via a radical C-C bond cleavage/Truce-Smiles rearrangement cascade is developed. The protocol features mild and redox-neutral conditions, broad substrate scope and excellent functional group compatibility, providing a facile and efficient approach to the long-chain distal keto-amides with all-carbon quaternary centers at the alpha position.
Collapse
Affiliation(s)
- Jin-Hua Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Hong-Jie Miao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Hong Xin
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Gang Wang
- Keshun waterproof technology CO., LTD, Foshan 528303, China
| | - Xiaoyu Yang
- Keshun waterproof technology CO., LTD, Foshan 528303, China
| | - Xianjun Wang
- Keshun waterproof technology CO., LTD, Foshan 528303, China
| | - Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
| |
Collapse
|
2
|
Chen XF, Zhang H, Liu LL, Guo LN, Liu WJ, Liu YL, Li DD, Zhao Y, Zhu RY, Li Y, Dai RC, Yu SY, Li J, Wang T, Dou HT, Xu YC. Genome-wide analysis of in vivo-evolved Candida auris reveals multidrug-resistance mechanisms. Mycopathologia 2024; 189:35. [PMID: 38637433 DOI: 10.1007/s11046-024-00832-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/17/2024] [Indexed: 04/20/2024]
Abstract
Candida auris, an emerging and multidrug-resistant fungal pathogen, has led to numerous outbreaks in China. While the resistance mechanisms against azole and amphotericin B have been studied, the development of drug resistance in this pathogen remains poorly understood, particularly in in vivo-generated drug-resistant strains. This study employed pathogen whole-genome sequencing to investigate the epidemiology and drug-resistance mutations of C. auris using 16 strains isolated from two patients. Identification was conducted through Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and antimicrobial susceptibilities were assessed using broth microdilution and Sensititre YeastOne YO10. Whole-genome sequencing revealed that all isolates belonged to the South Asian lineage, displaying genetic heterogeneity. Despite low genetic variability among patient isolates, notable mutations were identified, including Y132F in ERG11 and A585S in TAC1b, likely linked to increased fluconazole resistance. Strains from patient B also carried F214L in TAC1b, resulting in a consistent voriconazole minimum inhibitory concentration of 4 µg/mL across all isolates. Furthermore, a novel frameshift mutation in the SNG1 gene was observed in amphotericin B-resistant isolates compared to susceptible ones. Our findings suggest the potential transmission of C. auris and emphasize the need to explore variations related to antifungal resistance. This involves analyzing genomic mutations and karyotypes, especially in vivo, to compare sensitive and resistant strains. Further monitoring and validation efforts are crucial for a comprehensive understanding of the mechanisms of drug resistance in C. auris.
Collapse
Affiliation(s)
- Xin-Fei Chen
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Han Zhang
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Ling-Li Liu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
- Graduate School, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Li-Na Guo
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Wen-Jing Liu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Ya-Li Liu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Ding-Ding Li
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
- Graduate School, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Ying Zhao
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Ren-Yuan Zhu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Yi Li
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
- Graduate School, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Rong-Chen Dai
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Shu-Ying Yu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Jin Li
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Tong Wang
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
- Graduate School, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Hong-Tao Dou
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China.
| | - Ying-Chun Xu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China.
| |
Collapse
|
3
|
Wang ZY, Ma DR, Li MJ, Liang YY, Hu ZW, Li SJ, Zuo CY, Hao CW, Feng YM, Guo MN, Hao XY, Guo YL, Ma KK, Guo LN, Zhang C, Xu YM, Mao CY, Shi CH. Association between irritable bowel syndrome and Parkinson's disease by Cohort study and Mendelian randomization analysis. NPJ Parkinsons Dis 2024; 10:70. [PMID: 38548756 PMCID: PMC10978991 DOI: 10.1038/s41531-024-00691-5] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 03/19/2024] [Indexed: 04/01/2024] Open
Abstract
This study aimed to investigate the association between irritable bowel syndrome (IBS) and Parkinson's disease (PD) utilizing prospective cohort study and Mendelian randomization. The dataset contained a substantial cohort of 426,911 participants from the UK Biobank, discussing the association between IBS and PD with Cox proportional hazards models and case-control analysis while adjusting for covariates such as age, gender, ethnicity and education level. In univariate Cox regression model, the risk of PD was reduced in IBS patients (HR: 0.774, 95%CI: 0.625-0.956, P = 0.017), but the statistical significance diminished in the three models after adjusting for other variables. In a few subgroup analyses, IBS patients are less likely to develop into PD, and patients diagnosed with IBS after 2000 also had a lower risk (HR: 0.633, 95%CI: 0.403-0.994, P = 0.047) of subsequently developing PD. In addition, we matched five healthy control participants based on gender and age at the end of the study for each IBS patient diagnosed during the follow-up period, and logistic regression results (OR:1.239, 95%CI: 0.896-1.680, P = 0.181) showed that IBS was not associated with the risk of PD. Mendelian randomization did not find significant evidence of the causal relationship between IBS and Parkinson's disease (OR: 0.801, 95%CI: 0.570-1.278, P = 0.204). Overall, we suggest that IBS status is not associated with the risk of developing PD, and that these findings provide valuable insights into the clinical management and resource allocation of patients with IBS.
Collapse
Affiliation(s)
- Zhi-Yun Wang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Dong-Rui Ma
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Meng-Jie Li
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Yuan-Yuan Liang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Zheng-Wei Hu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Shuang-Jie Li
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Chun-Yan Zuo
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Chen-Wei Hao
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Yan-Mei Feng
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Meng-Nan Guo
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiao-Yan Hao
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Yuan-Li Guo
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Ke-Ke Ma
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Li-Na Guo
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Chan Zhang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
- Henan Key Laboratory of Cerebrovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
- Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan, China
| | - Yu-Ming Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
- Henan Key Laboratory of Cerebrovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
- Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan, China
- NHC Key Laboratory of Prevention and treatment of Cerebrovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Cheng-Yuan Mao
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
- Henan Key Laboratory of Cerebrovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
- Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan, China
- NHC Key Laboratory of Prevention and treatment of Cerebrovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Chang-He Shi
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
- Henan Key Laboratory of Cerebrovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
- Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan, China.
- NHC Key Laboratory of Prevention and treatment of Cerebrovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| |
Collapse
|
4
|
Xin H, Yang M, Guan C, Li J, Gao P, Yang X, Duan XH, Guo LN. Iron-Catalyzed Cyanide-Free Synthesis of Alkyl Nitriles: Oxidative Deconstruction of Cycloalkanones with Ammonium Salts and Aerobic Oxidation. Org Lett 2024; 26:2266-2270. [PMID: 38451860 DOI: 10.1021/acs.orglett.4c00458] [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: 03/09/2024]
Abstract
A sustainable, cyanide-free synthesis of alkyl nitriles via the aerobic oxidative deconstruction of unstrained cycloalkanones with ammonium salts has been developed. Using inexpensive and stable ammonium salts as the nitrogen source, a variety of alkyl nitriles containing a distal carbonyl group were obtained in good yields under visible-light-promoted iron catalysis. This protocol is characterized by mild conditions, abundant and environmentally benign materials, and high atom and step economy with minimal waste generation. The primary mechanism study revealed that 1O2 is likely to be involved in this reaction.
Collapse
Affiliation(s)
- Hong Xin
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Mingyu Yang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Cheng Guan
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jialong Li
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Pin Gao
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xu Yang
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Hua Duan
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Li-Na Guo
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| |
Collapse
|
5
|
Wang J, Gao WB, Liu FW, Liu Q, Song B, Ye J, Chen Y, Zhao CL, Dong W, Guo LN, Song B. Two new furanone derivatives from the endophytic fungus Byssochlamys sp. and their cytotoxic activities. Nat Prod Res 2023:1-5. [PMID: 37888852 DOI: 10.1080/14786419.2023.2275269] [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: 07/19/2023] [Accepted: 10/20/2023] [Indexed: 10/28/2023]
Abstract
Two new furanone derivatives, byssochlanones A-B (1-2) were purified from the endophytic fungus Byssochlamys sp. isolated from the wetland plant, Phragmites australis. Their structures were elucidated on the basis of extensive spectroscopic analyses. Compounds 1-2 represented typical furanone analogues which are not common in natural products. The absolute configuration of compounds 1-2 were identified through quantum-chemical electronic circular dichroism (ECD) calculation compared with their experimental CD. In addition, compounds 1-2 were tested for their cytotoxic activities against HCT-8 and Hela cancer cell lines, and compound 2 showed moderate activity against HCT-8 cells with IC50 value of 21.3 μM.
Collapse
Affiliation(s)
- Jie Wang
- The Second Affiliated Hospital, Qiqihar Medical University, Qiqihar, P.R. China
| | - Wen-Bin Gao
- College of Life Science, Cangzhou Normal University, Hebei, P.R. China
| | - Fan-Wei Liu
- Pharmacy School, Qiqihar Medical University, Qiqihar, P.R. China
| | - Qi Liu
- Pharmacy School, Qiqihar Medical University, Qiqihar, P.R. China
| | - Bo Song
- Medical Technology Department, Qiqihar Medical University, Qiqihar, P.R. China
| | - Jin Ye
- Pharmacy School, Qiqihar Medical University, Qiqihar, P.R. China
| | - Ying Chen
- Medical Technology Department, Qiqihar Medical University, Qiqihar, P.R. China
| | - Cai-Lin Zhao
- Pharmacy School, Qiqihar Medical University, Qiqihar, P.R. China
| | - Wei Dong
- Pharmacy School, Qiqihar Medical University, Qiqihar, P.R. China
| | - Li-Na Guo
- Pharmacy School, Qiqihar Medical University, Qiqihar, P.R. China
| | - Bo Song
- Pharmacy School, Qiqihar Medical University, Qiqihar, P.R. China
| |
Collapse
|
6
|
Guo LN, Lu L, Dong XR, Zhang FL, Yan P, Dong ZQ. Effects of gibberellic acid, kinetin and indole butyric acid mixture on sorghum salinity tolerance and grain yield in saline-alkali coastal zone. Ying Yong Sheng Tai Xue Bao 2023; 34:2405-2412. [PMID: 37899106 DOI: 10.13287/j.1001-9332.202309.016] [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: 10/31/2023]
Abstract
The development and utilization of coastal saline-alkali lands hold significant importance in mitigating the shortage of cultivated land resources in China, enhancing the agro-ecological environment in coastal saline and alkaline areas, and ensuring national food security. We set up both pot and field trials (randomized block design) at Xinxiang experimental station of Institute of Crop Science, Chinese Academy of Agricultural Sciences (ICS-CAAS) and Dongying Yellow River Delta Modern Agricultural Research Base in Shandong Province in 2021 and 2022, respectively. The experimental materials, Jiliang 1 and Jiliang 2, underwent seed dressing with GKI composites at concentrations of 2.5 and 5 mL·kg-1. These composites, which contained the main components of gibberellin, kinetin, and indole butyric acid, were denoted as GKI2.5 and GKI5.0, respectively. The control plots (CK) received water seed dressing. The aim was to assess the regulatory effects of GKI on salt tolerance and grain sorghum yield. Compared to CK, the GKI2.5 and GKI5.0 seed dressing treatments significantly enhanced the growth and development of the two grain sorghum varieties, increased antioxidant enzyme activity and soluble protein content of sorghum leaves, while reducing leaf malondialdehyde content. Moreover, the GKI treatments increased leaf net photosynthetic rate. Under field conditions, yields of Jiliang 1 and Jiliang 2 were enhanced by an average of 17.1% and 19.1%, respectively. In conclusion, GKI seed dressing treatment effectively promoted the growth and development of sorghum under salt stress. It enhanced the antioxidant and osmoregulatory capacities of leaves, reduced the level of membrane lipid peroxidation, and improved net photosynthetic rate of leaves, which together improved the salt tolerance and sorghum yield.
Collapse
Affiliation(s)
- Li-Na Guo
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- College of Agronomy, Agricultural University of Hebei, Baoding 071001, Hebei, China
| | - Lin Lu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xue-Rui Dong
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Feng-Lu Zhang
- College of Agronomy, Agricultural University of Hebei, Baoding 071001, Hebei, China
| | - Peng Yan
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Zhi-Qiang Dong
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| |
Collapse
|
7
|
Chen Y, Zhao CL, Dong W, Song FF, Guo LN, Zhang HL, Zhen L, Li L, Ye J, Song B. Tigliane-and daphnane-type diterpenoids from the buds of Daphne genkwa with their cytotoxic activities. Nat Prod Res 2023; 37:3163-3169. [PMID: 36382781 DOI: 10.1080/14786419.2022.2147168] [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: 07/08/2022] [Revised: 10/19/2022] [Accepted: 11/07/2022] [Indexed: 11/18/2022]
Abstract
Two new tigliane- and daphnane-type diterpenoids, given the trivial names daphnegens A-B (1-2) were isolated from the buds of Daphne genkwa. Their structures were assigned on the basis of extensive spectroscopic. The absolute configurations of both compounds were determined by comparison of their calculated and experimental CD curves. In addition, compounds 1-2 were tested for their cytotoxic activities against MCF-7 and HepG-2 human cancer cell lines, and compound 2 showed remarkable cytotoxic activity against HepG-2 cell line with the IC50 value of 11.5 μM.
Collapse
Affiliation(s)
- Ying Chen
- Qiqihar Medical University, Qiqihar, Heilongjiang, PR China
| | - Cai-Lin Zhao
- Qiqihar Medical University, Qiqihar, Heilongjiang, PR China
| | - Wei Dong
- Qiqihar Medical University, Qiqihar, Heilongjiang, PR China
| | - Fei-Fan Song
- Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai, Guangdong, PR China
| | - Li-Na Guo
- Qiqihar Medical University, Qiqihar, Heilongjiang, PR China
| | | | - Lv Zhen
- Qiqihar Medical University, Qiqihar, Heilongjiang, PR China
| | - Li Li
- Qiqihar Medical University, Qiqihar, Heilongjiang, PR China
| | - Jin Ye
- Qiqihar Medical University, Qiqihar, Heilongjiang, PR China
| | - Bo Song
- Qiqihar Medical University, Qiqihar, Heilongjiang, PR China
| |
Collapse
|
8
|
Ma YJ, Yuan ZH, Gao P, Duan XH, Xin H, Liu L, Guo LN. Divergent Construction of Azaheterocycles via Alkoxyl Radical-Triggered C-C Bond Cleavage/Cyclization of N-Functionalized Acrylamides. J Org Chem 2023; 88:9927-9940. [PMID: 37432753 DOI: 10.1021/acs.joc.3c00695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
An array of redox-neutral alkylation/cyclization cascade reactions of N-functionalized acrylamides with cycloalkyl hydroperoxides were achieved via the alkoxyl radical-triggered C-C bond cleavage. Through adjusting the radical acceptors on the N atom, a variety of keto-alkylated chain-containing azaheterocycles, including indolo[2,1-a]isoquinolin-6(5H)-ones, quinoline-2,4-diones, and pyrido[4,3,2-gh]phenanthridines were constructed by a one-pot procedure with good yields and excellent functional group tolerance.
Collapse
Affiliation(s)
- Ying-Jie Ma
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Zi-Hang Yuan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Hong Xin
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Le Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| |
Collapse
|
9
|
Miao HJ, Zhang JH, Liu S, Wang WH, Yang X, Duan XH, Guo LN. Alkoxyl Radical-Mediated Ring Expansion/1,4-Difunctionalization of 1,3-Enynes upon Copper Catalysis. Org Lett 2023. [PMID: 37477589 DOI: 10.1021/acs.orglett.3c01809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
A redox-neutral copper-catalyzed cascade reaction involving alkoxyl radical-mediated ring expansion/1,4-difunctionalization of 1,3-enynes was developed, offering a straightforward approach to the tetra-substituted allenes with macrolactone, CN, and CF3 functional groups. Remarkably, incorporation of the NH2 group onto the 1,3-enyne moiety enabled further cyclization to give a unique scaffold containing a lactone and an indole moiety.
Collapse
Affiliation(s)
- Hong-Jie Miao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Jin-Hua Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Wen-Hong Wang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Xu Yang
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| |
Collapse
|
10
|
Bai M, Liu S, Xin H, Yang X, Duan XH, Guo LN. Iron-catalyzed alkoxyl radical-mediated C-C bond cleavage/phosphorothiolation: a new approach to functionalized S-alkyl phosphorothioates. Org Biomol Chem 2023. [PMID: 37401815 DOI: 10.1039/d3ob00673e] [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: 07/05/2023]
Abstract
An efficient iron-catalyzed alkoxyl radical-mediated C-C bond cleavage/phosphorothiolation cascade is presented. This protocol features mild and redox neutral conditions, wide substrate scope and easy scalability, allowing straightforward access to functionalized S-alkyl organophosphorus compounds in moderate to good yields.
Collapse
Affiliation(s)
- Ming Bai
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Hong Xin
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Xu Yang
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| |
Collapse
|
11
|
Zhang TY, Wu Y, Liu S, Tao JQ, Yang X, Wang XQ, Duan XH, Guo LN. Iron-Catalyzed Alkoxyl Radical-Induced C-C Bond Cleavage/ gem-Difluoroalkylation Cascade. Org Lett 2023. [PMID: 37262417 DOI: 10.1021/acs.orglett.3c01427] [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: 06/03/2023]
Abstract
An inexpensive iron-catalyzed alkoxyl radical-induced C-C bond cleavage/gem-difluoroalkylation cascade is presented. Regulated by the structure of alkoxyl radical precursors, fluorinated distal diketones were synthesized through a ring-opening strategy and difluoroalkylated medium-sized lactones and macrolactones were constructed via a ring-expansion strategy. Both protocols proceeded under mild and redox neutral conditions with a broad substrate scope and good functional group compatibility.
Collapse
Affiliation(s)
- Tian-Yu Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yong Wu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jing-Qi Tao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xu Yang
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xue-Qi Wang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
- School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| |
Collapse
|
12
|
Liu S, Ma P, Zhang L, Shen S, Miao HJ, Liu L, Houk KN, Duan XH, Guo LN. A cheap metal catalyzed ring expansion/cross-coupling cascade: a new route to functionalized medium-sized and macrolactones. Chem Sci 2023; 14:5220-5225. [PMID: 37206389 PMCID: PMC10189895 DOI: 10.1039/d2sc06157k] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 04/15/2023] [Indexed: 05/21/2023] Open
Abstract
An efficient alkoxyl radical-triggered ring expansion/cross-coupling cascade was developed under cheap metal catalysis. Through the metal-catalyzed radical relay strategy, a wide range of medium-sized lactones (9-11 membered) and macrolactones (12, 13, 15, 18, and 19-membered) were constructed in moderate to good yields, along with diverse functional groups including CN, N3, SCN, and X groups installed concurrently. Density functional theory (DFT) calculations revealed that reductive elimination of the cycloalkyl-Cu(iii) species is a more favorable reaction pathway for the cross-coupling step. Based on the results of experiments and DFT, a Cu(i)/Cu(ii)/Cu(iii) catalytic cycle is proposed for this tandem reaction.
Collapse
Affiliation(s)
- Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Pengchen Ma
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
- Department of Chemistry and Biochemistry, University of California Los Angeles California 90095-1569 USA
| | - Lu Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Shenyu Shen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Hong-Jie Miao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Le Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California Los Angeles California 90095-1569 USA
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University Xi'an 710049 China
| |
Collapse
|
13
|
Yang YT, Yan B, Li YH, Guo LN, Wang WW, Liu LJ, Yu HG, Diao H. Phosphodiesterase 10A inhibitor PF-2545920 as a prospective agent for the clinical promotion of sperm motility. Asian J Androl 2023; 25:373415. [PMID: 37026191 PMCID: PMC10521960 DOI: 10.4103/aja2022117] [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: 08/19/2022] [Accepted: 02/07/2023] [Indexed: 04/08/2023] Open
Abstract
Phosphodiesterase (PDE) inhibitors can improve sperm motility in patients with asthenozoospermia. However, the most commonly reported nonselective PDE inhibitor pentoxifylline and PDE5 inhibitor sildenafil have the disadvantages of requiring a high concentration and destroying sperm integrity. We examined the PDE10A inhibitor PF-2545920 to compare its ability to promote sperm motility with that of pentoxifylline and sildenafil. After seminal plasma was discarded, several semen samples were subjected to four treatments (control, PF-2545920, pentoxifylline, and sildenafil) to evaluate their ability to affect motility, viability, and spontaneous acrosome reactions. Intracellular calcium and adenosine triphosphate (ATP), mitochondrial membrane potential, and penetration through viscous medium were assessed by flow cytometry, luciferase, and hyaluronic acid after treatment with PF-2545920. Statistical analyses were performed using the analysis of variance statistical test. PF-2545920 elevated the percentage of motile spermatozoa compared to the control, pentoxifylline, and sildenafil groups at 10 µmol l -1 ( P < 0.01). It is less toxic to GC-2spd mouse spermatocytes cells and spermatozoa and causes fewer spontaneous acrosomal reactions ( P < 0.05). PF-2545920 also increased mitochondrial membrane potential ( P < 0.001) and altered intracellular calcium ( P < 0.05) in a dose-dependent manner, including increasing sperm hyaluronic acid penetrating ability ( P < 0.05). Therefore, PF-2545920 might be an excellent choice for stimulating the sperm motility.
Collapse
Affiliation(s)
- Yi-Ting Yang
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Bin Yan
- Reproductive Medicine Centre, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yu-Hua Li
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Li-Na Guo
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Wei-Wei Wang
- School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Li-Jie Liu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - He-Guo Yu
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Hua Diao
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| |
Collapse
|
14
|
Guo Q, Zhang JD, Chen YJ, Zhang KY, Guo LN, Shan QC, Lu JL, Duan XH, Wu LZ. Enhanced hydrogen evolution activity of CsPbBr 3 nanocrystals achieved by dimensionality change. Chem Commun (Camb) 2023; 59:4189-4192. [PMID: 36939750 DOI: 10.1039/d2cc06731e] [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: 03/09/2023]
Abstract
Dimensionality plays a vital role at the nanoscale in tuning the electronical and photophysical properties and surface features of perovskite nanocrystals. Here, 3D and 1D all-inorganic CsPbBr3 nanocrystals were chosen as model materials to systemically reveal the dimensionality-dependent effect in photocatalytic H2 evolution. In terms of facilitating photoinduced electron-hole pair separation and charge transfer, as well as inducing proton reduction potential with the presence of fewer Br vacancies, 1D CsPbBr3 nanorods gave about a 5-fold improvement for solar H2 evolution.
Collapse
Affiliation(s)
- Qing Guo
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Jin-Dan Zhang
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Ya-Jing Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Ke-Yuan Zhang
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Li-Na Guo
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Qi-Chao Shan
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Jun-Lin Lu
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Xin-Hua Duan
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| |
Collapse
|
15
|
Xin H, Guo LN, Yang MY, Guan C, Yuan Z, Duan XH. Photoredox-catalyzed sequential Dowd–Beckwith ring expansion and C–H functionalization of THIQs. Org Chem Front 2023. [DOI: 10.1039/d2qo02001g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An efficient tandem Dowd–Beckwith ring expansion/C–H functionalization of tetrahydroisoquinoline (THIQ) is disclosed upon photocatalysis, which provided a unique thought to connect important medium-sized cycloalkanones with THIQs skeletons together, along with...
Collapse
|
16
|
Guo LN, Yang KY, Wang Y. [Development of bariatric surgery in the context of precision medicine]. ZHONGHUA WEI CHANG WAI KE ZA ZHI = CHINESE JOURNAL OF GASTROINTESTINAL SURGERY 2022; 25:928-936. [PMID: 36245119 DOI: 10.3760/cma.j.cn441530-20220630-00286] [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: 06/16/2023]
Abstract
Precision medicine, which is based on individualized medicine, is a new medical model developed with the cross-application of genome sequencing technology, bioinformatics, and big data science. The establishment of precision medicine model is conducive to maximize the efficient utilization of medical resources and patient benefits. Bariatric surgery is an emerging branch of general surgery in the new century. Although the development of bariatric surgery still has a long way to go, precision medicine will add significant value to the rapid and positive development of the branch of bariatric surgery. In the context of precision medicine, bariatric metabolic surgery is now in its infancy. Currently, the successful implementation of precision control in bariatric surgery is initially focusing on the prediction of postoperative weight and the study of body weight differences in epigenetics. However, there are still gaps to be filled in the area of postoperative recovery, nutritional support treatment, and realization of individualized treatment based on big data. In the future, the integration of large-scale resource and data information can be realized by establishing the multi-center clinical sample library and perfecting the data collection of long-term follow-up and clinical information. Meanwhile, we can conduct deep biological data mining effectively with the big data platform, while using data reference to achieve accurate prediction and control of obesity treatment, so as to formulate detailed implementation plans and detailed procedure standard. Last but not least, we should pay attention to the patients' privacy and prevent personal health information leakage.
Collapse
Affiliation(s)
- L N Guo
- Department of 4th General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - K Y Yang
- Department of 4th General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Y Wang
- Department of 4th General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| |
Collapse
|
17
|
Shan QC, Liu S, Shen Y, Ma M, Duan XH, Gao P, Guo LN. Switchable In Situ SO 2 Capture and CF 3 Migration of Enol Triflates with Peroxyl Compounds under Iron Catalysis. Org Lett 2022; 24:6653-6657. [PMID: 36048533 DOI: 10.1021/acs.orglett.2c02663] [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: 11/30/2022]
Abstract
Switchable in situ SO2 capture and CF3 migration of enol triflates with peroxyl compounds under iron catalysis are presented. By regulating the structure of peroxides, a variety of keto-functionalized dialkyl sulfones and α-trifluoromethyl ketones were selectively synthesized in good yields under mild conditions.
Collapse
Affiliation(s)
- Qi-Chao Shan
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shuai Liu
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yuncheng Shen
- Shaanxi Yuneng Group Energy and Chemical Research Institute Co., Ltd, Yu'lin 719000, China
| | - Mingming Ma
- Shaanxi Yuneng Group Energy and Chemical Research Institute Co., Ltd, Yu'lin 719000, China
| | - Xin-Hua Duan
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Pin Gao
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Li-Na Guo
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| |
Collapse
|
18
|
Balak D, Perez-Chada LM, Guo LN, Mita C, Armstrong AW, Bell SJ, Gondo GC, Liao W, Merola JF. Definitions of Remission in Psoriasis: A Systematic Literature Review from the National Psoriasis Foundation. J Eur Acad Dermatol Venereol 2022; 36:2291-2300. [PMID: 35924437 DOI: 10.1111/jdv.18477] [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] [Received: 02/25/2022] [Accepted: 07/12/2022] [Indexed: 11/28/2022]
Abstract
Psoriasis studies increasingly employ outcomes that indicate complete disease resolution, yet remission and cure are poorly defined for psoriasis. We conducted a systematic literature review to identify definitions of psoriasis remission and cure reported in the literature. Medline, EMBASE, and The Cochrane Central Register of Controlled Trials databases were searched on July 22, 2020 for full-text studies providing definitions for psoriasis remission/cure. Definitions were analyzed descriptively for endpoint, time-frame, on/off treatment, patient-reported outcomes, and disease domains. We identified 106 studies that provided 41 unique remission definitions. Most definitions included endpoints based on Psoriasis Area and Severity Index (PASI), such as PASI75 (n=16 studies), PASI90 (n=10), PASI100 (n=10), and PASI of 0 (n=3), and descriptive endpoints related to 'skin clearance' (n=18). Few definitions specified time-frame, on/off treatment or other psoriasis-related disease domains. One small consensus-initiative defined drug-free remission for plaque psoriasis by BSA of 0 without any therapy for at least 12 months. While there is no cure for psoriasis, seven studies defined psoriasis cure using similar endpoints to those used to define remission. We identified a variety of definitions of psoriasis remission. These results will inform the development of consensus-based definitions for psoriasis remission to support efforts to improve research and clinical outcomes.
Collapse
Affiliation(s)
- Dmw Balak
- Department of Dermatology, LangeLand Hospital, Zoetermeer, the Netherlands.,Department of Dermatology, Ghent University Hospital, Ghent, Belgium
| | - L M Perez-Chada
- Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - L N Guo
- Harvard Medical School, Boston, MA, USA
| | - C Mita
- Countway Library of Medicine, Harvard University, Boston, Massachusetts, USA
| | - A W Armstrong
- Department of Dermatology, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - S J Bell
- National Psoriasis Foundation, Portland, OR, USA
| | - G C Gondo
- National Psoriasis Foundation, Portland, OR, USA
| | - W Liao
- Department of Dermatology, University of California, San Francisco, CA, USA
| | - J F Merola
- Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Department of Medicine, Division of Rheumatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
19
|
Zhang YN, Jiao H, Guo LN, Ma XY, Gai GC, Zhang JT, Yang WQ, Wang XL. [Silk fibroin/collagen composite hydrogels with different matrix stiffness influence the growth and phenotype of human mammary epithelial cells]. Sheng Li Xue Bao 2022; 74:381-391. [PMID: 35770636] [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
Extracellular matrix (ECM) stiffness is closely related to the physiological and pathological states of breast tissue. The current study was aimed to investigate the effect of silk fibroin/collagen composite hydrogels with adjustable matrix stiffness on the growth and phenotype of normal breast epithelial cells. In this study, the enzymatic reaction of horseradish peroxidase (HRP) with hydrogen peroxide (H2O2) was used to change the degree of cross-linking of the silk fibroin solution. The rotational rheometer was used to characterize the composite hydrogel's biomechanical properties. Human normal mammary epithelial cell line MCF-10A were inoculated into composite hydrogels with various stiffness (19.10-4 932.36 Pa) to construct a three dimensional (3D) culture system of mammary epithelial cells. The CCK-8 assay was applied to detect the cell proliferation rate and active states in each group. Hematoxylin-Eosin (HE) staining and whole-mount magenta staining were used for histological evaluation of cell morphology and distribution. The results showed that with the increase of matrix stiffness, MCF-10A cells exhibited inhibited proliferation rate, decreased formation of acinus structures and increased branching structures. Meanwhile, with the increase of matrix stiffness, the polarity of MCF-10A cells was impeded. And the increase of matrix stiffness up-regulated the expression levels of mmp-2, mmp-3, and mmp-9 in MCF-10A cells. Among the genes related to epithelial-mesenchymal transition (EMT), the expression level of the epithelial marker gene E-cadherin was significantly down-regulated, while the interstitial cell marker gene Vimentin was up-regulated, and the expression levels of Snail, Wnt5b and Integrin β1 in the Wnt pathway were up-regulated. These results suggest that the silk fibroin/collagen composite hydrogels with adjustable matrix stiffness regulates the proliferation and the phenotype of MCF-10A cells. The effects of increased matrix stiffness may be closely related to the changes of the polar structures and function of MCF-10A cells, as well as the occurrence of ECM-remodeling and EMT.
Collapse
Affiliation(s)
- Yi-Ning Zhang
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China
| | - Hui Jiao
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China
| | - Li-Na Guo
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China
| | - Xin-Yu Ma
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China
| | - Gao-Cheng Gai
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China
| | - Jin-Tao Zhang
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China
| | - Wen-Qing Yang
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China
| | - Xiu-Li Wang
- College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China.
| |
Collapse
|
20
|
Han J, Wang Q, Guo LN, Zhang Y, Tang RJ, Bi LN, Liu JH, Mao LJ. [Illness cognition and related factors in patients with prostate cancer]. Zhonghua Nan Ke Xue 2022; 28:495-500. [PMID: 37477465] [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: 07/22/2023]
Abstract
OBJECTIVE To study the illness cognition and related factors in patients with prostate cancer (PCa). METHODS Using the convenience-sampling method, we selected 231 PCa patients treated in a general hospital in Xuzhou from October 2019 to October 2020. We conducted a cross-sectional study of the cases based on the general data of the patients and their scores on the Illness Cognition Questionnaire (ICQ). RESULTS The PCa patients showed a high negative and a low positive illness cognition. The ICQ scores of the patients were high on "helplessness" (13.70 ± 3.54) and low on "acceptance" (16.64 ± 3.37) and "perceived benefits" (13.93 ± 3.76). Age, disease duration, disease stage and number of children were the four factors included in the regression equation of the participants' illness cognition. CONCLUSION Negative illness cognition is high in PCa patients, higher in those at a younger age, with a longer disease duration, or with more than one child than in those at an older age, with a shorter disease duration, or with only one or no child.
Collapse
Affiliation(s)
- Jing Han
- School of Nursing, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
- Department of Nursing, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Qiong Wang
- Department of Urology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Li-Na Guo
- Department of Urology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Yao Zhang
- School of Nursing, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Rui-Jin Tang
- School of Nursing, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Liu-Na Bi
- School of Nursing, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Ji-Hai Liu
- Department of Urology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Li-Jun Mao
- Department of Urology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| |
Collapse
|
21
|
Guo LN, Yuan ZH, Hong X, Tao JQ, Ma YJ, Duan XH. Thermo-Induced Decarboxylative α-C(sp3)−H Fluoroalkylation of Glycine Derivatives with Fluorinated Peroxy Esters. Org Chem Front 2022. [DOI: 10.1039/d2qo00613h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A thermo-induced decarboxylative α-C(sp3)−H fluoroalkylation of glycine derivatives with fluorinated peroxy esters was described. This protocol features transition metal free, redox-neutral conditions, broad substrate scope and excellent functional group tolerance,...
Collapse
|
22
|
Wen YF, Xiao XW, Zhou L, Jiang YL, Zhu Y, Guo LN, Wang X, Liu H, Zhou YF, Wang JL, Liao XX, Shen L, Jiao B. Mutations in GBA, SNCA, and VPS35 are not associated with Alzheimer's disease in a Chinese population: a case-control study. Neural Regen Res 2022; 17:682-689. [PMID: 34380910 PMCID: PMC8504399 DOI: 10.4103/1673-5374.321000] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 11/30/2022] Open
Abstract
SNCA, GBA, and VPS35 are three common genes associated with Parkinson’s disease. Previous studies have shown that these three genes may be associated with Alzheimer’s disease (AD). However, it is unclear whether these genes increase the risk of AD in Chinese populations. In this study, we used a targeted gene sequencing panel to screen all the exon regions and the nearby sequences of GBA, SNCA, and VPS35 in a cohort including 721 AD patients and 365 healthy controls from China. The results revealed that neither common variants nor rare variants of these three genes were associated with AD in a Chinese population. These findings suggest that the mutations in GBA, SNCA, and VPS35 are not likely to play an important role in the genetic susceptibility to AD in Chinese populations. The study was approved by the Ethics Committee of Xiangya Hospital, Central South University, China on March 9, 2016 (approval No. 201603198).
Collapse
Affiliation(s)
- Ya-Fei Wen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Xue-Wen Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Lu Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Ya-Ling Jiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Yuan Zhu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Li-Na Guo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Xin Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Hui Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Ya-Fang Zhou
- Department of Geriatrics Neurology, Xiangya Hospital; National Clinical Research Center for Geriatric Disorders; Engineering Research Center of Hunan Province in Cognitive Impairment Disorders; Hunan International Scientific and Technological Cooperation Base of Neurodegenerative and Neurogenetic Diseases; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan Province, China
| | - Jun-Ling Wang
- Department of Neurology, Xiangya Hospital; National Clinical Research Center for Geriatric Disorders; Engineering Research Center of Hunan Province in Cognitive Impairment Disorders; Hunan International Scientific and Technological Cooperation Base of Neurodegenerative and Neurogenetic Diseases; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan Province, China
| | - Xin-Xin Liao
- Department of Geriatrics Neurology, Xiangya Hospital; National Clinical Research Center for Geriatric Disorders; Engineering Research Center of Hunan Province in Cognitive Impairment Disorders; Hunan International Scientific and Technological Cooperation Base of Neurodegenerative and Neurogenetic Diseases; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan Province, China
| | - Lu Shen
- Department of Neurology, Xiangya Hospital; National Clinical Research Center for Geriatric Disorders; Engineering Research Center of Hunan Province in Cognitive Impairment Disorders; Hunan International Scientific and Technological Cooperation Base of Neurodegenerative and Neurogenetic Diseases; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, Hunan Province, China
| | - Bin Jiao
- Department of Neurology, Xiangya Hospital; National Clinical Research Center for Geriatric Disorders; Engineering Research Center of Hunan Province in Cognitive Impairment Disorders; Hunan International Scientific and Technological Cooperation Base of Neurodegenerative and Neurogenetic Diseases; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan Province, China
| |
Collapse
|
23
|
Liu HX, Feng D, Long CR, Zhou XY, Liu HM, Yang HX, DU YX, Guo LN, Fu XM, Ma ZC, Yue JQ. [Fruit variation and geographical distribution of citron]. Zhongguo Zhong Yao Za Zhi 2021; 46:6289-6293. [PMID: 34951256 DOI: 10.19540/j.cnki.cjcmm.20211012.102] [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: 11/18/2022]
Abstract
The ripe dried fruit of citron(Citrus medica) is one of the important sources of Chinese herb Citri Fructus. At the same time, it is also grown for edible and ornamental uses. There are many species and abundant genetic variation. To clarify the intraspecific variation and resource distribution of citron, this study investigated the variation in 11 citron fruits, basically covering the main species in China, including Xiaoguo citron(C. medica var. ethrog), Goucheng(C. medica var. yunnanensis), Muli citron(C.medica var. muliensis), Dehong citron(C.medica×Citrus spp.), Fuzhou citron(C.medica×C.grandis?), Mawu(C.medica×C.grandis?), Cangyuan citron, Binchuan citron, Sweet citron, Big citron, and Small citron. The natural communities of citron were proved to be mainly distributed in the southwestern and western Yunnan and southeastern Tibet of China, with Yunnan, Sichuan, Guangxi, Chongqing, Hubei, and Zhejiang identified as the main production areas. Citron has also been widely grown in India, the Mediterranean region, and the Caribbean coast countries. The field investigation revealed the large-scale intraspecific variation of citron fruits. Most of the fruits are oval-like or sphere-like in shape. The fruits are green when raw and yellow when ripe, with oil cell dots on the skin, stripe-likes running from top to bottom, and bulge at the top. Usually, in the smaller citron fruits, the pulp and juice vesicles are better developed and the central columella is tighter. By contrast, the juice vesicles and central columella in larger fruits became more vacant, with carpels visible, and the apex segregation and development of the carpels is one of the reasons for variation. These variations should be given top priority in the future variety selection and breeding, and the quality differences of different citron species and their mechanisms should be further studied. In particular, variety selection and classification management according to their medicinal or edible purposes will provide scientific and technological supports for the orderly, safe, and effective production of citron products consumed as food and medicine.
Collapse
Affiliation(s)
- Hang-Xiu Liu
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| | - Di Feng
- Institute of Health from Horticulture, College of Horticulture & Forestry Sciences, Huazhong Agricultural University Wuhan 430070, China
| | - Chun-Rui Long
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| | - Xian-Yan Zhou
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| | - Hong-Ming Liu
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| | - Hong-Xia Yang
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| | - Yu-Xia DU
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| | - Li-Na Guo
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| | - Xiao-Meng Fu
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| | - Zhao-Cheng Ma
- Institute of Health from Horticulture, College of Horticulture & Forestry Sciences, Huazhong Agricultural University Wuhan 430070, China
| | - Jian-Qiang Yue
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences Baoshan 678000, China
| |
Collapse
|
24
|
Abstract
1,2-Dicarbofunctionalization of alkenes represents an appealing strategy for chemical bond formation in organic synthesis, which could enable the rapid construction of molecular complexity from simple and readily available starting materials by incorporating two functional groups onto a carbon-carbon double bond in one step. In this field, the dicarbofunctionalization of alkenes with different alkyl radicals in a controlled manner represents an elegant and versatile strategy to access structurally diverse functionalized alkanes, which have witnessed significant progress over the last five years. Due to the importance of alkyl radicals in organic synthesis and medicinal chemistry, this review provides a comprehensive perspective on the development of alkyl radical precursors including electrophilic precursors such as alkyl halides, alkyl peroxides, alkyl NHP esters, cycloketone oxime esters, and Katritzky pyridinium salts, and nucleophilic precursors such as alkyl acids, alkyl oxalates, alkylborates, alkylsilicates, and unactivated hydrocarbons, which generate alkyl radicals by photocatalysis or transition metal catalysis to engage in dicarbofunctionalization under oxidative reaction conditions, redox-neutral conditions, or reductive conditions. The mechanisms of these dicarbofunctionalization reactions have also been discussed in detail.
Collapse
Affiliation(s)
- Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Yue-Jie Niu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Fan Yang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| |
Collapse
|
25
|
Liu WM, Zhou X, Chen CY, Lv DD, Huang WJ, Peng Y, Wu HP, Chen Y, Tang D, Guo LN, Wang XL, Zhang HD, Liu XH, Yang LQ, Yu WF, Yan HX. Establishment of Functional Liver Spheroids From Human Hepatocyte-Derived Liver Progenitor-Like Cells for Cell Therapy. Front Bioeng Biotechnol 2021; 9:738081. [PMID: 34858956 PMCID: PMC8630579 DOI: 10.3389/fbioe.2021.738081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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] [Received: 07/08/2021] [Accepted: 10/26/2021] [Indexed: 01/18/2023] Open
Abstract
Globally, about two million people die from liver diseases every year. Liver transplantation is the only reliable therapy for severe end-stage liver disease, however, the shortage of organ donors is a huge limitation. Human hepatocytes derived liver progenitor-like cells (HepLPCs) have been reported as a novel source of liver cells for development of in vitro models, cell therapies, and tissue-engineering applications, but their functionality as transplantation donors is unclear. Here, a 3-dimensional (3D) co-culture system using HepLPCs and human umbilical vein endothelial cells (HUVECs) was developed. These HepLPC spheroids mimicked the cellular interactions and architecture of mature hepatocytes, as confirmed through ultrastructure morphology, gene expression profile and functional assays. HepLPCs encapsulated in alginate beads are able to mitigate liver injury in mice treated with carbon tetrachloride (CCL4), while alginate coating protects the cells from immune attack. We confirmed these phenomena due to HUVECs producing glial cell line-derived neurotrophic factor (GDNF) to promote HepLPCs maturation and enhance HepLPCs tight junction through MET phosphorylation. Our results display the efficacy and safety of the alginate microencapsulated spheroids in animal model with acute liver injury (ALF), which may suggest a new strategy for cell therapy.
Collapse
Affiliation(s)
- Wen-Ming Liu
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - Xu Zhou
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - Cai-Yang Chen
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - Dong-Dong Lv
- Department of Anesthesiology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Wei-Jian Huang
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - Yuan Peng
- Department of Interventional Oncology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hong-Ping Wu
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Yi Chen
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - Dan Tang
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - Li-Na Guo
- College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Xiu-Li Wang
- College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Hong-Dan Zhang
- Shanghai Celliver Biotechnology Co. Ltd., Shanghai, China
| | - Xiao-Hua Liu
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - Li-Qun Yang
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - Wei-Feng Yu
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China
| | - He-Xin Yan
- Department of Anesthesiology and Critical Care Medicine, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Engineering Research Center of Peri-operative Organ Support and Function Preservation, Shanghai, China.,Shanghai Celliver Biotechnology Co. Ltd., Shanghai, China.,Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
26
|
Guo LN, Liu L, Duan XH. Recent Advance in Iminyl Radical Triggered C–H and C–C Bond Functionalization of Oxime Esters via 1,5-HAT and β-Carbon Scission. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1545-6874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe direct functionalization of C(sp3)–H and C(sp3)–C(sp3) bonds is considered as one of the most valuable synthetic strategies because of its high efficiency and step-economy for the rapid assembly of complex molecules. However, the relatively high bond disassociation energies (BDEs) and similar chemical environment lead to large obstacles in terms of low reactivity and selectivity. Using a radical-based strategy has proved to be an efficient approach to overcome these difficulties via a hydrogen atom transfer (HAT) process for selective C(sp3)–H functionalization and β-carbon scission for C(sp3)–C(sp3) bond derivatization. Oxime esters have emerged as outstanding precursors of iminyl radicals for versatile chemical transformations. This short review summaries the recent advances in site-specific C(sp3)–H functionalization and C(sp3)–C(sp3) bond cleavage starting from oxime esters by our group and pioneering work by others, mainly focusing on the reaction design as well as the reaction mechanism.1 Introduction2 C(sp3)–H Bond Functionalization via 1,5-HAT of Acyclic Oxime Esters2.1 1,5-HAT/Cyclization2.2 1,5-HAT/C–C or C–Heteroatom Bond Formation3 C(sp3)–C(sp3) Bond Functionalization via β-Carbon Scission of Cyclic Oxime Esters3.1 β-Carbon Scission/C–C or C–Heteroatom Bond Formation3.2 β-Carbon Scission/Cyclization4 Conclusion and Outlook
Collapse
|
27
|
Sun QX, Chen H, Liu S, Wang XQ, Duan XH, Guo LN. Iron-Catalyzed Thiolation and Selenylation of Cycloalkyl Hydroperoxides via C-C Bond Cleavage. J Org Chem 2021; 86:11987-11997. [PMID: 34374284 DOI: 10.1021/acs.joc.1c01366] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A cheap iron-catalyzed C-C bond cleavage/thiolation and selenylation of cycloalkyl hydroperoxides are presented. This redox-neutral protocol provides efficient access to diverse distal keto-functionalized thioethers and selenium compounds. Remarkably, only some amounts of disulfides are required for this transformation.
Collapse
Affiliation(s)
- Qing-Xin Sun
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - He Chen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiao-Qiang Wang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| |
Collapse
|
28
|
Abstract
An efficient copper-catalyzed radical ring-opening halogenation with HX (aq) is described. This protocol features redox-neutral conditions, green halogen sources, and a broad substrate scope, providing practical access to distally chlorinated, brominated and iodinated alkyl ketones and alkyl nitriles with moderate to good yields.
Collapse
Affiliation(s)
- Shuai Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.
| | | | | | | | | | | |
Collapse
|
29
|
Abstract
A visible light-driven, copper-catalyzed aerobic oxidative cleavage of cycloalkanones has been presented. A variety of cycloalkanones with varying ring sizes and various α-substituents reacted well to give the distal keto acids or dicarboxylic acids with moderate to good yields.
Collapse
Affiliation(s)
- Hong Xin
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Mingyu Yang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yiwen Zhang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| |
Collapse
|
30
|
Guo LN, Li YC, Sun ZF, Yan HY, Li H, Wang YM. Risk factors influencing prognosis of patients undergoing primary retroperitoneal tumor surgery. Shijie Huaren Xiaohua Zazhi 2021; 29:461-466. [DOI: 10.11569/wcjd.v29.i9.461] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Primary retroperitoneal tumors are mostly malignancies with a variety of etiologies. Parameters such as tumor grade, range of resection, and tumor integrity have been shown to influence prognosis.
AIM To identify the risk factors for postoperative survival in patients undergoing primary retroperitoneal tumor surgery.
METHODS Seventy-three patients undergoing radical retroperitoneal tumor surgery were divided into a tumor-free survival group (47 cases) and a recurrence-caused death group (26 cases). Factors affecting patients' tumor-free survival after surgery were collected and analyzed, including age, tumor long diameter, lymph node metastasis, first symptom, tumor type, tumor differentiation degree, and complication with other systemic diseases.
RESULTS The 5-year tumor-free survival rate for primary retroperitoneal tumors was 64.4% (47/73). Single factor analysis showed that age (P < 0.05), tumor long diameter (P < 0.05), lymph node metastasis (P < 0.05), first symptom (P < 0.05), tumor type (P < 0.05), and tumor differentiation degree (P < 0.05) were significantly associated with retroperitoneal tumor surgery disease-free survival rate. Multivariate Cox regression analysis indicated that first symptom (P < 0.05) and tumor type (P < 0.05) were independent risk factors affecting postoperative tumor-free survival in retroperitoneal tumor patients.
CONCLUSION First symptom and tumor type are the key factors affecting the postoperative tumor-free survival of retroperitoneal tumor patients.
Collapse
Affiliation(s)
- Li-Na Guo
- Department of Hepatobiliary and Pancreatic Surgery, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Yun-Chao Li
- Department of General Surgery, Tianjin Ninghe District Hospital, Tianjin 301500, China
| | - Zhan-Feng Sun
- Department of General Surgery, Tianjin Ninghe District Hospital, Tianjin 301500, China
| | - Hai-Yang Yan
- Rescue Research Institute of Affiliated Hospital of Logistical College of Armed Police, Tianjin 300162, China
| | - Hui Li
- Rescue Research Institute of Affiliated Hospital of Logistical College of Armed Police, Tianjin 300162, China
| | - Yue-Ming Wang
- Department of General Surgery, Tianjin Ninghe District Hospital, Tianjin 301500, China
| |
Collapse
|
31
|
Guo LN, Yu SY, Wang Y, Liu YL, Yuan Y, Duan SM, Yang WH, Jia XM, Zhao Y, Xiao M, Xie XL, Dou HT, Hsueh PR, Xu YC. Species distribution and antifungal susceptibilities of clinical isolates of Penicillium and Talaromyces species in China. Int J Antimicrob Agents 2021; 58:106349. [PMID: 33905861 DOI: 10.1016/j.ijantimicag.2021.106349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 10/19/2020] [Revised: 04/01/2021] [Accepted: 04/17/2021] [Indexed: 12/15/2022]
Abstract
Morphologically identified Penicillium (n = 103) and Talaromyces marneffei (n = 8) isolates were collected from various clinical sources between 2016 and 2017 at a medical centre in Beijing, China. Identification to species level was confirmed by sequencing of the internal transcribed spacer (ITS) region, β-tubulin gene (benA) and RNA polymerase II second largest subunit (RPB2) gene. Of the 111 isolates, 56 (50.5%) were identified as Penicillium spp. and 55 (49.5%) as Talaromyces spp. Eleven species of Penicillium were detected, of which Penicillium oxalicum was the commonest, accounting for 51.8% (29/56), followed by Penicillium rubens (10.7%; 6/56) and Penicillium citrinum (10.7%; 6/56). Among the 55 Talaromyces isolates, nine species were identified, with Talaromyces funiculosus (36.4%; 20/55), Talaromyces stollii (27.3%; 15/55) and Talaromyces marneffei (14.5%; 8/55) being the most common. Of note, 89.3% (50/56) of the Penicillium isolates and 98.2% (54/55) of the Talaromyces isolates exhibited growth at 37°C. The isolates were mainly recovered from patients with pulmonary disorders (56.8%; 63/111), autoimmune disease (12.6%; 14/111) and AIDS (5.4%; 6/111). The azoles and amphotericin B exhibited potent activity against T. marneffei, while various levels of activity were observed against Penicillium and other Talaromyces species The echinocandins had the lowest MECs (MEC90, ≤0.12 mg/L) against most Penicillium and Talaromyces species, with the exception of T. marneffei whose MEC90 (4 mg/L) was five or more dilutions higher than that of the other species tested. These data on the species distribution and antifungal susceptibility expand the current clinical knowledge of Penicillium and Talaromyces species.
Collapse
Affiliation(s)
- Li-Na Guo
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Shu-Ying Yu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Yao Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Ya-Li Liu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Ying Yuan
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Si-Meng Duan
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Wen-Hang Yang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xin-Miao Jia
- Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Ying Zhao
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Meng Xiao
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Xiu-Li Xie
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Hong-Tao Dou
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Po-Ren Hsueh
- Departments of Laboratory Medicine & Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Ying-Chun Xu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China.
| |
Collapse
|
32
|
Chen Y, Li L, Jiang LR, Tan JY, Guo LN, Wang XL, Dong W, Wang WB, Sun JK, Song B. Alkaloids constituents from the roots of Phragmites australis (Cav.) Trin. ex Steud. with their cytotoxic activities. Nat Prod Res 2021; 36:1454-1459. [PMID: 33678090 DOI: 10.1080/14786419.2021.1888291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Two new alkaloids, phranisines A-B (1-2), along with two known compounds, N-p-Coumaroyl serotonin (3) and N-p-coumaroyl-tryptamine (4), were isolated from the roots of Phragmites australis. The structures of 1-4 were established on the basis of extensive spectroscopic. The absolute configuration of compounds 1-2 were identified through quantum-chemical electronic circular dichroism (ECD) calculation compared with their experimental CD. All the isolated compounds were tested for their cytotoxic activities against HeLa and MCF-7 human cancer cell lines, and compounds 2-4 showed moderate cytotoxic activities against HeLa cell lines with IC50 values ranging from 13.2 to 18.6 μM.
Collapse
Affiliation(s)
- Ying Chen
- Medical Technology Department, Qiqihar Medical University, Qiqihar, PR China
| | - Li Li
- Pharmacy School, Qiqihar Medical University, Qiqihar, PR China
| | - Li-Rui Jiang
- Pharmacy School, Qiqihar Medical University, Qiqihar, PR China
| | - Jia-Yin Tan
- Medical Technology Department, Qiqihar Medical University, Qiqihar, PR China
| | - Li-Na Guo
- Pharmacy School, Qiqihar Medical University, Qiqihar, PR China
| | - Xiao-Li Wang
- Pharmacy School, Qiqihar Medical University, Qiqihar, PR China
| | - Wei Dong
- Pharmacy School, Qiqihar Medical University, Qiqihar, PR China
| | - Wen-Bao Wang
- Pharmacy School, Qiqihar Medical University, Qiqihar, PR China
| | - Ji-Kai Sun
- Pharmacy School, Qiqihar Medical University, Qiqihar, PR China
| | - Bo Song
- Pharmacy School, Qiqihar Medical University, Qiqihar, PR China
| |
Collapse
|
33
|
Abstract
An efficient copper-catalyzed ketoalkylation of Csp2–H bonds with cycloalkyl silyl peroxides under mild conditions is presented. A series of Csp2–H bonds in quinoxalin-2(1H)-ones, heteroaromatic N-oxides and quinones were amenable to this protocol.
Collapse
Affiliation(s)
- He Chen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Qing-Xin Sun
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lei Chen
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jing-Qi Tao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| | - Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, China
| |
Collapse
|
34
|
Ma ZY, Li M, Guo LN, Liu L, Wang D, Duan XH. Sulfonamide as Photoinduced Hydrogen-Atom Transfer Catalyst for Regioselective Alkylation of C(sp 3)-H Bonds Adjacent to Heteroatoms. Org Lett 2020; 23:474-479. [PMID: 33373258 DOI: 10.1021/acs.orglett.0c03992] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Based on the DFT calculations, the sulfonamide was explored as an efficient hydrogen-atom transfer catalyst for the C(sp3)-H alkylation. The combination of a metal-free photoredox catalyst and a sulfonamide catalyst enables highly regioselective alkylation of the C-H bonds adjacent to heteroatoms, which features broad substrate scope and excellent functional group compatibility. Remarkably, the sulfonamide catalyst was also applicable to the C(sp3)-C(sp3) couplings through the merger of photoredox, nickel, and HAT catalysis.
Collapse
Affiliation(s)
- Zhi-Yong Ma
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Mengyang Li
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Le Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Dongdong Wang
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, P.R. China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| |
Collapse
|
35
|
Chen L, Guo LN, Liu S, Liu L, Duan XH. Visible-light-driven palladium-catalyzed Dowd-Beckwith ring expansion/C-C bond formation cascade. Chem Sci 2020; 12:1791-1795. [PMID: 34163941 PMCID: PMC8179048 DOI: 10.1039/d0sc04399k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 08/11/2020] [Accepted: 11/26/2020] [Indexed: 02/03/2023] Open
Abstract
A visible-light-induced palladium-catalyzed Dowd-Beckwith ring expansion/C-C bond formation cascade is described. A range of six to nine-membered β-alkenylated cyclic ketones possessing a quaternary carbon center were accessed under mild conditions. Besides styrenes, the electron-rich alkenes such as silyl enol ethers and enamides were also compatible, providing the desired β-alkylated cyclic ketones in moderate to good yields.
Collapse
Affiliation(s)
- Li Chen
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Li-Na Guo
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Shuai Liu
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Le Liu
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Xin-Hua Duan
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University Xi'an Shaanxi 710049 China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Lanzhou730000 P. R. China
| |
Collapse
|
36
|
Xu WL, Shi BJ, Li SL, Yu FX, Guo LN, Li M, Hu ZG, Li GX, Zhou H. Targeted inhibition of myeloid-derived suppressor cells in the tumor microenvironment by low-dose doxorubicin to improve immune efficacy in murine neuroblastoma. Chin Med J (Engl) 2020; 134:334-343. [PMID: 33278092 PMCID: PMC7846436 DOI: 10.1097/cm9.0000000000001234] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND High agglomeration of myeloid-derived suppressor cells (MDSCs) in neuroblastoma (NB) impeded therapeutic effects. This study aimed to investigate the role and mechanism of targeted inhibition of MDSCs by low-dose doxorubicin (DOX) to enhance immune efficacy in NB. METHODS Bagg albino (BALB/c) mice were used as tumor-bearing mouse models by injecting Neuro-2a cells, and MDSCs were eliminated by DOX or dopamine (DA) administration. Tumor-bearing mice were randomly divided into 2.5 mg/kg DOX, 5.0 mg/kg DOX, 50.0 mg/kg DA, and control groups (n = 20). The optimal drug and its concentration for MDSC inhibition were selected according to tumor inhibition. NB antigen-specific cytotoxic T cells (CTLs) were prepared. Tumor-bearing mice were randomly divided into DOX, CTL, anti-ganglioside (GD2), DOX+CTL, DOX+anti-GD2, and control groups. Following low-dose DOX administration, immunotherapy was applied. The levels of human leukocyte antigen (HLA)-I, CD8, interleukin (IL)-2 and interferon (IFN)-γ in peripheral blood, CTLs, T-helper 1 (Thl)/Th2 cytokines, perforin, granzyme and tumor growth were compared among the groups. The Wilcoxon two-sample test and repeated-measures analysis of variance were used to analyze results. RESULTS The slowest tumor growth (F = 6.095, P = 0.018) and strongest MDSC inhibition (F = 14.632, P = 0.001) were observed in 2.5 mg/kg DOX group. Proliferation of T cells was increased (F = 448.721, P < 0.001) and then decreased (F = 2.047, P = 0.186). After low-dose DOX administration, HLA-I (F = 222.489), CD8 (F = 271.686), Thl/Th2 cytokines, CD4+ and CD8+ lymphocytes, granzyme (F = 2376.475) and perforin (F = 488.531) in tumor, IL-2 (F = 62.951) and IFN-γ (F = 240.709) in peripheral blood of each immunotherapy group were all higher compared with the control group (all of P values < 0.05). The most significant increases in the aforementioned indexes and the most notable tumor growth inhibition were observed in DOX+anti-GD2 and DOX+CTL groups. CONCLUSIONS Low-dose DOX can be used as a potent immunomodulatory agent that selectively impairs MDSC-induced immunosuppression, thereby fostering immune efficacy in NB.
Collapse
Affiliation(s)
- Wei-Li Xu
- Department of Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Bao-Jun Shi
- Department of Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Suo-Lin Li
- Department of Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Feng-Xue Yu
- Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Li-Na Guo
- Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Meng Li
- Department of Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Zhi-Gang Hu
- Department of General Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Gui-Xin Li
- Department of General Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Hui Zhou
- Department of Pediatric Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| |
Collapse
|
37
|
Liu JY, Guo LN, Peng WZ, Jiang Y, Wang AL, Guo XM, Xu ZS. Efficacy and safety of nebivolol in hypertensive patients: a meta-analysis of randomized controlled trials. J Int Med Res 2020; 48:300060520931625. [PMID: 33081551 PMCID: PMC7588777 DOI: 10.1177/0300060520931625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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
Purpose Our meta-analysis was undertaken to evaluate the efficacy and safety of nebivolol compared with other second-generation β blockers for hypertensive patients. Methods We searched PubMed, the Cochrane Library, EMBASE, and Clinical Trials.gov databases for randomized controlled trials (RCTs). The efficacy endpoints included systolic blood pressure (SBP), diastolic blood pressure (DBP), reduction of SBP and DBP, heart rate (HR), and adverse events (AEs). Findings Eight RCTs with 1514 patients met the inclusion criteria. HR was significantly lower in patients receiving other second-generation β blockers compared with patients receiving nebivolol. There was no difference the reduction of blood pressure (SBP and DBP) or the reduction of SBP or DBP between the groups. The incidence of AEs was lower in patients taking nebivolol compared with patients taking other second-generation β blockers. Conclusions No significant difference was demonstrated between nebivolol and other second-generation β blockers in the reduction of blood pressure, SBP, and DBP. The tolerability of nebivolol was significantly better compared with other second-generation β blockers, and nebivolol was also associated with a stable HR and a lower risk of AEs compared with other second-generation β blockers.
Collapse
Affiliation(s)
- Jun-Ying Liu
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, Hebei Province, China
| | - Li-Na Guo
- Department of Plastic and Cosmetic Medicine, Cangzhou Central Hospital, Cangzhou, Hebei Province, China
| | - Wan-Zhong Peng
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, Hebei Province, China
| | - Yang Jiang
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, Hebei Province, China
| | - Ai-Li Wang
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, Hebei Province, China
| | - Xue-Min Guo
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, Hebei Province, China
| | - Ze-Sheng Xu
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, Hebei Province, China
| |
Collapse
|
38
|
Yu SY, Guo LN, Xiao M, Zhou ML, Yuan Y, Wang Y, Zhang L, Sun TS, Ning YT, Jia PY, Kang W, Kong F, Chen SCA, Zhao Y, Xu YC. Clinical and Microbiological Characterization of Invasive Pulmonary Aspergillosis Caused by Aspergillus lentulus in China. Front Microbiol 2020; 11:1672. [PMID: 32849346 PMCID: PMC7399017 DOI: 10.3389/fmicb.2020.01672] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 02/10/2020] [Accepted: 06/25/2020] [Indexed: 12/24/2022] Open
Abstract
Invasive aspergillosis (IA) due to Aspergillus lentulus is associated with high mortality. In this study, we investigated the clinical and microbiological characteristics of 6 fatal cases of proven or probable IA caused by A. lentulus in China. Underlying immunosuppression, prior antifungal exposure, and intensive care unit (ICU) hospitalization were important risk factors for invasive A. lentulus infection. Phenotypic differences were observed for A. lentulus isolates including slower growth, reduced sporulation, and inability to grow at 48°C, compared with Aspergillus fumigatus complex. ITS sequencing was unable to distinguish A. lentulus from A. fumigatus, but sequencing of the benA, CaM, and rod A loci enabled reliable distinction of these closely related species. Phylogenetic analysis further confirmed that the ITS region had little variation within the Aspergillus section Fumigati while the benA gene offered the highest intraspecific discrimination. Microsatellite typing results revealed that only loci on chromosomes 1, 3, 5, and 6b generated detectable amplicons for identification. All A. lentulus isolates showed in vitro resistance to multiple antifungal drugs including amphotericin B (MIC range 4 to 8 μg/ml), itraconazole (MIC 2 μg/ml), voriconazole (MIC of 4–16 μg/ml), and posaconazole (MIC of 0.5–1 μg/ml). However, MECs for the echinocandin drugs ranged from 0.03–0.25, ≤0.008–0.015, and ≤0.015–0.03 μg/ml for caspofungin, micafungin, and anidulafungin, respectively. A. lentulus is an emerging fungal pathogen in China, causing fatal disease, and clinicians as well as laboratories should be alert to their increasing presence.
Collapse
Affiliation(s)
- Shu-Ying Yu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Li-Na Guo
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Meng Xiao
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Meng-Lan Zhou
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Ying Yuan
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Yao Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Li Zhang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Tian-Shu Sun
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China.,Department of Central Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Ya-Ting Ning
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Pei-Yao Jia
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Wei Kang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| | - Fanrong Kong
- Centre for Infectious Diseases and Microbiology Laboratory Services, ICPMR -New South Wales Health Pathology, The University of Sydney, Westmead, NSW, Australia
| | - Sharon C-A Chen
- Centre for Infectious Diseases and Microbiology Laboratory Services, ICPMR -New South Wales Health Pathology, The University of Sydney, Westmead, NSW, Australia
| | - Yanan Zhao
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ, United States.,Department of Medical Sciences, Hackensack Meridian School of Medicine, Nutley, NJ, United States
| | - Ying-Chun Xu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447), Beijing, China
| |
Collapse
|
39
|
Guo LN, Yu SY, Xiao M, Yang CX, Bao CM, Yu YH, Ye LY, Yang Y, Zhang G, Liu J, Liang GW, Min R, Zhu Y, Lei H, Liu YL, Liu LJ, Hu YJ, Hsueh PR, Xu YC. Species Distribution and Antifungal Susceptibility of Invasive Candidiasis: A 2016-2017 Multicenter Surveillance Study in Beijing, China. Infect Drug Resist 2020; 13:2443-2452. [PMID: 32765018 PMCID: PMC7381087 DOI: 10.2147/idr.s255843] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 04/07/2020] [Accepted: 07/01/2020] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE Invasive candidiasis (IC), a life-threatening fungal infection prevalent among hospitalized patients, has highly variable regional epidemiology. We conducted a multicenter surveillance study to investigate recent trends in species distribution and antifungal susceptibility patterns among IC-associated Candida spp. in Beijing, China, from 2016 to 2017. MATERIALS AND METHODS A total of 1496 non-duplicate Candida isolates, recovered from blood and other sterile body fluids of IC patients, were identified using matrix-assisted laser desorption/ionization time of flight mass spectrometry combined with ribosomal DNA internal transcribed spacer (ITS) region sequencing. Broth microdilution-based susceptibility testing using six antifungal agents was also conducted. RESULTS Candida albicans was the most frequently isolated species (49.9%), followed by Candida tropicalis (15.5%), Candida glabrata (14.7%) and Candida parapsilosis (14.2%). No significant differences in species distribution were observed when compared with a 2012-2013 dataset. Overall, the rates of susceptibility to fluconazole and voriconazole were high among C. albicans (98% and 97.2%, respectively) and C. parapsilosis species complex (91.1% and 92%, respectively) isolates but low among C. tropicalis (81.5% and 81.1%, respectively) isolates. In addition, the rate of azole resistance among C. tropicalis isolates increased significantly (1.8-fold, P<0.05) compared with that observed in 2012-2013, while micafungin resistance rates were <5% for all tested Candida species. CONCLUSION Our results suggest that species distribution has remained stable among IC-associated Candida isolates in Beijing. Resistance to micafungin was rare, but increased azole resistance among C. tropicalis isolates was noted. Our study provides information on local epidemiology that will be important for the selection of empirical antifungal agents and contributes to global assessments of antifungal resistance.
Collapse
Affiliation(s)
- Li-Na Guo
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447)
| | - Shu-Ying Yu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447)
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences
| | - Meng Xiao
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447)
| | - Chun-Xia Yang
- Department of Infectious Diseases & Clinical Microbiology, Beijing Chao-Yang Hospital, Capital Medical University
| | - Chun-Mei Bao
- Clinical Laboratory Medical Center, The Fifth Medical Center of Chinese PLA General Hospital
| | - Yan-Hua Yu
- Department of Clinical Laboratory, You’an Hospital, Capital Medical University
| | - Li-Yan Ye
- Center for Clinical Laboratory Medicine, Chinese PLA General Hospital
| | - Yang Yang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447)
| | - Ge Zhang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447)
| | - Jie Liu
- Department of Clinical Laboratory, Seventh Medical Center, PLA General Hospital
| | - Guo-Wei Liang
- Department of Clinical Laboratory, Aerospace Center Hospital
| | - Rong Min
- Department of Clinical Laboratory, Xuanwu Hospital, Capital Medical University
| | - Yu Zhu
- Department of Clinical Laboratory, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Hong Lei
- Department of Clinical Laboratory, The 8th Medical Center of Chinese PLA General Hospital
| | - Yu-Lei Liu
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University
| | - Lin-Juan Liu
- Department of Clinical Laboratory, Peking University Cancer Hospital and Institute
| | - Yun-Jian Hu
- Department of Clinical Laboratory, Beijing Hospital, Beijing, People’s Republic of China
| | - Po-Ren Hsueh
- Departments of Laboratory Medicine & Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ying-Chun Xu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases (BZ0447)
| |
Collapse
|
40
|
Yang S, Gao P, Suo MT, Gao SX, Duan XH, Guo LN. Copper-catalyzed alkylarylation of vinylarenes with cycloalkylsilyl peroxides and boronic acids. Chem Commun (Camb) 2020; 56:10714-10717. [DOI: 10.1039/d0cc04439c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A mild and efficient copper-catalyzed alkylarylation of vinylarenes with cycloalkylsilyl peroxides and boronic acids is described.
Collapse
Affiliation(s)
- Shuo Yang
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Pin Gao
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Meng-Ting Suo
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Shu-Xin Gao
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Xin-Hua Duan
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| | - Li-Na Guo
- Department of Chemistry
- School of Chemistry
- Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi’an Jiaotong University
- Xi’an 710049
| |
Collapse
|
41
|
Suo MT, Yang S, Yang JC, Liu ZY, Zhang JJ, Guo LN. Iron catalyzed ketoalkylation and ketoalkylation/etherification of styrenes initiated by selective C–C bond cleavage. Org Chem Front 2020. [DOI: 10.1039/d0qo00671h] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A mild and efficient iron-catalyzed ketoalkyl-Heck-type coupling initiated by radical C–C bond cleavage is described. Furthermore, this concise catalytic system was also applicable for the three-component ketoalkylation/etherification of styrenes.
Collapse
Affiliation(s)
- Meng-Ting Suo
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Shuo Yang
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Jun-Cheng Yang
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Ze-Yu Liu
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Jun-Jie Zhang
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| | - Li-Na Guo
- Department of Chemistry
- School of Chemistry
- Xi'an Key Laboratory of Sustainable Energy Material Chemistry
- and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Xi'an Jiaotong University
| |
Collapse
|
42
|
Guo LN, Zhao RL, Ren AH, Niu LX, Zhang YL. Stress Recovery of Campus Street Trees as Visual Stimuli on Graduate Students in Autumn. Int J Environ Res Public Health 2019; 17:ijerph17010148. [PMID: 31878199 PMCID: PMC6982156 DOI: 10.3390/ijerph17010148] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/20/2019] [Accepted: 12/21/2019] [Indexed: 12/13/2022]
Abstract
Human stress recovery response to landscapes is under discussion in Chinese settings. The present study aimed to clarify the stress recovery effects of campus street trees on graduate students in autumn. A total of 150 participants (23.75 ± 1.01 years old) completed the Trier Social Stress Test (TSST) and were then randomly assigned to view one of five virtual environments, including the street trees Sophora japonica, Ginkgo biloba, Platanus acerifolia, Koelreuteria paniculata, and the indoor environment (control). Physiological responses were measured by R-R interval and electroencephalography (EEG). Psychological responses were examined through the state version of the State-Trait Anxiety Inventory (STAI-S) and the Perceived Restorativeness Scale (PRS). Results showed that R-R intervals significantly increased while viewing all street trees. Both alpha and beta brainwave activities while viewing S. japonica and G. biloba were remarkably higher than those while viewing P. acerifolia and K. paniculata. The STAI-S scores significantly decreased, and the positive PRS scores were registered after viewing street trees. We concluded that a brief virtual visual experience of campus street trees in autumn has stress recovery effects on graduate students, and the different levels of stress recovery are associated with different types of street trees.
Collapse
Affiliation(s)
| | | | - Ai-Hua Ren
- College of Landscape Architecture and Arts, Northwest A&F University, Shaanxi 712100, China
| | - Li-Xin Niu
- College of Landscape Architecture and Arts, Northwest A&F University, Shaanxi 712100, China
| | - Yan-Long Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Shaanxi 712100, China
| |
Collapse
|
43
|
Guo LN, Nambudiri VE. Kaposi sarcoma in HIV-negative men who have sex with men: a case series of nonepidemic Kaposi sarcoma. Clin Exp Dermatol 2019; 45:585-587. [PMID: 31755130 DOI: 10.1111/ced.14146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2019] [Indexed: 11/30/2022]
Affiliation(s)
- L N Guo
- Harvard Medical School, Boston, MA, USA.,Department of Dermatology, Brigham and Women's Hospital, Boston, MA, USA
| | - V E Nambudiri
- Harvard Medical School, Boston, MA, USA.,Department of Dermatology, Brigham and Women's Hospital, Boston, MA, USA
| |
Collapse
|
44
|
Liu XX, Jiao B, Liao XX, Guo LN, Yuan ZH, Wang X, Xiao XW, Zhang XY, Tang BS, Shen L. Analysis of Salivary Microbiome in Patients with Alzheimer’s Disease. J Alzheimers Dis 2019; 72:633-640. [PMID: 31594229 DOI: 10.3233/jad-190587] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xi-Xi Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Bin Jiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, China
| | - Xin-Xin Liao
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Geriatrics Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Li-Na Guo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zhen-Hua Yuan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xin Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xue-Wen Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xin-Yue Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Bei-Sha Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, China
- Parkinson’s Disease Center of Beijing Institute for Brain Disorders, Beijing, China
- Collaborative Innovation Center for Brain Science, Shanghai, China
| | - Lu Shen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
| |
Collapse
|
45
|
Ma ZY, Guo LN, You Y, Yang F, Hu M, Duan XH. Visible Light Driven Alkylation of C(sp 3)-H Bonds Enabled by 1,6-Hydrogen Atom Transfer/Radical Relay Addition. Org Lett 2019; 21:5500-5504. [PMID: 31246029 DOI: 10.1021/acs.orglett.9b01804] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A visible-light-driven sulfamate esters guided alkylation of unactivated C(sp3)-H bonds enabled by a 1,6-HAT/radical addition cascade is described. Not only structurally diverse Michael acceptors but also styrenes are amenable to this alkylation reaction. Notably, the N-H bonds activation radical relay refrained from prefunctionalization and using excess external oxidants.
Collapse
Affiliation(s)
- Zhi-Yong Ma
- Department of Chemistry, School of Science, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter , Xi'an Jiaotong University , Xi'an 710049 , P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Science, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter , Xi'an Jiaotong University , Xi'an 710049 , P. R. China
| | - Ying You
- Department of Chemistry, School of Science, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter , Xi'an Jiaotong University , Xi'an 710049 , P. R. China
| | - Fan Yang
- Department of Chemistry, School of Science, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter , Xi'an Jiaotong University , Xi'an 710049 , P. R. China
| | - Mingyou Hu
- Department of Chemistry, School of Science, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter , Xi'an Jiaotong University , Xi'an 710049 , P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter , Xi'an Jiaotong University , Xi'an 710049 , P. R. China.,State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , P. R. China
| |
Collapse
|
46
|
Tang YQ, Yang JC, Wang L, Fan M, Guo LN. Ni-Catalyzed Redox-Neutral Ring-Opening/Radical Addition/Ring-Closing Cascade of Cycloketone Oxime Esters and Vinyl Azides. Org Lett 2019; 21:5178-5182. [DOI: 10.1021/acs.orglett.9b01773] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yu-Qi Tang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Cheng Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Le Wang
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Mingjin Fan
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| |
Collapse
|
47
|
Yang L, Zhang JY, Duan XH, Gao P, Jiao J, Guo LN. Copper-Catalyzed Cyanoalkylation of Amines via C–C Bond Cleavage: An Approach for C(sp3)–N Bond Formations. J Org Chem 2019; 84:8615-8629. [DOI: 10.1021/acs.joc.9b01084] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lin Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jia-Yu Zhang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Pin Gao
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jiao Jiao
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Li-Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| |
Collapse
|
48
|
Xiao XW, Du J, Jiao B, Liao XX, Zhou L, Liu XX, Yuan ZH, Guo LN, Wang X, Shen L, Lin ZY. Novel ATL1 mutation in a Chinese family with hereditary spastic paraplegia: A case report and review of literature. World J Clin Cases 2019; 7:1358-1366. [PMID: 31236401 PMCID: PMC6580333 DOI: 10.12998/wjcc.v7.i11.1358] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/23/2019] [Accepted: 04/09/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Hereditary spastic paraplegias (HSPs) refer to a group of heterogeneous neurodegenerative diseases characterized by lower limbs spasticity and weakness. So far, over 72 genes have been found to cause HSP (SPG1-SPG72). Among autosomal dominant HSP patients, spastic paraplegia 4 (SPG4/SPAST) gene is the most common pathogenic gene, and atlastin-1 (ATL1) is the second most common one. Here we reported a novel ATL1 mutation in a Chinese spastic paraplegia 3A (SPG3A) family, which expands the clinical and genetic spectrum of ATL1 mutations.
CASE SUMMARY A 9-year-old boy with progressive spastic paraplegia accompanied by right hearing loss and mental retardation for five years was admitted to our hospital. Past history was unremarkable. The family history was positive, and his grandfather and mother had similar symptoms. Neurological examinations revealed hypermyotonia in his lower limbs, hyperreflexia in knee reflex, bilateral positive Babinski signs and scissors gait. The results of blood routine test, liver function test, blood glucose test, ceruloplasmin test and vitamin test were all normal. The serum lactic acid level was significantly increased. The testing for brainstem auditory evoked potential demonstrated that the right side hearing was impaired while the left was normal. Magnetic resonance imaging showed mild atrophy of the spinal cord. The gene panel test revealed that the proband carried an ATL1 c.752A>G p.Gln251Arg (p.Q251R) mutation, and Sanger sequencing confirmed the existence of family co-segregation.
CONCLUSION We reported a novel ATL1 Q251R mutation and a novel clinical phenotype of hearing loss in a Chinese SPG3A family.
Collapse
Affiliation(s)
- Xue-Wen Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Juan Du
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Bin Jiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha 410008, Hunan Province, China
| | - Xin-Xin Liao
- Department of Geriatrics Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Lu Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Xi-Xi Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Zhen-Hua Yuan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Li-Na Guo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Xin Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Lu Shen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha 410008, Hunan Province, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410008, Hunan Province, China
| | - Zhang-Yuan Lin
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| |
Collapse
|
49
|
Chen L, Guo LN, Ma ZY, Gu YR, Zhang J, Duan XH. Iminyl Radical-Triggered 1,5-Hydrogen-Atom Transfer/Heck-Type Coupling by Visible-Light Photoredox Catalysis. J Org Chem 2019; 84:6475-6482. [DOI: 10.1021/acs.joc.9b00525] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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)
- Li Chen
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Li-Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Zhi-Yong Ma
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yu-Rui Gu
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Junjie Zhang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| |
Collapse
|
50
|
Chen ML, Wang C, Tan CF, Liu WW, Guo LN, Du L, Tang YN, Li JL, Zhu DM, Zhang W. [Serum metabolic profile involving protective effect of "Neiguan"(PC6)-electroacupuncture preconditioning in rats with myocardial ischemia reperfusion injury]. Zhen Ci Yan Jiu 2019; 44:176-82. [PMID: 30945499 DOI: 10.13702/j.1000-0607.170627] [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: 11/12/2022]
Abstract
OBJECTIVE To observe the effect of "Neiguan" (PC6)-electroacupuncture (EA) preconditioning on serum metabolites in myocardial ischemia-reperfusion injury (MIRI) rats, so as to reveal its mechanism underlying improvement of ischemic myocardium from metabonomics. METHODS A total of 48 male SD rats were randomly divided into control, model, EA "Neiguan"(PC6) and EA "Hegu"(LI4) groups (n=12 rats/ group). Rats of the control group were just banded on animal boards for 30 min, once daily for 7 days. The MIRI model was established by occlusion of the left anterior descending branch of the left coronary artery for 40 min, followed by reperfusion for 1 h, and rats of the model group were also banded as those in the control group. Before modeling, EA (10 Hz/50 Hz, 1 mA) was applied to bilateral "Neiguan"(PC6) and "Hegu"(LI4) for 30 min, once daily for 7 successive days. After the treatment, serum samples were collected to be analyzed by proton nuclear magnetic resonance (1H NMR) spectroscopy. The orthogonal partial least squares discriminate analysis (PLS-DA) was employed to distinguish the serum differential metabolic profile of rats in different groups and identify potential biomarkers. RESULTS After modeling, the ECG of model group and electroacupuncture groups showed T wave towering, and there was no obvious ST segment between R wave and T wave. The T wave decreased more than 0.2 mV after reperfusion, and there was no obvious ST segment. Compared with the control group, MIRI induced significant changes of metabolites in the serum including increase of acetoacetate acid, lectic acid, creatine, glycerol and glucose, and decrease of alanine, glutamine, glycerophosphoryl choline and phosphorylcholine. In comparison with the model group, PC6-EA preconditioning induced significant changes, including an increase of glucose, and a decrease of leucine,isoleucine, valine,3-hydroxybutyric acid,lactate,acetate,acetone,acetoacetate acid,pyruvic acid,glutamine,creatine and glycerol. There is no significant difference in metabolic patterns between "Hegu" group and model group. Metabolic pathway enrichment analysis indicated that the protective effect of PC6-EA pretreatment was realized mainly by regulating pathways of glycolysis, gluconeogenesis, citric acid metabolism, pyruvate metabolism, ketone body metabolism, etc. CONCLUSION PC6-EA pretreatment has a role in regulating gluconeogenesis, pyruvate metabolism, amino metabolism, ketone body metabolism and energy metabolism in rats with MIRI, which maybe contribute to its protective effect on ischemic myocardium, but the specific metabolic pathways and mechanisms need being studied further.
Collapse
Affiliation(s)
- Mei-Lin Chen
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Chao Wang
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Cheng-Fu Tan
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Wei-Wei Liu
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Li-Na Guo
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Lin Du
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Ya-Ni Tang
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Jiao-Lan Li
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Ding-Ming Zhu
- College of Acupuncture-moxibustion and Massage, Hunan University of Chinese Medicine, Changsha 410007, China
| | - Wei Zhang
- Department of Acupuncture and Moxibustion of the First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha 410007
| |
Collapse
|