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Ma D, Yang M, Sun C, Cui X, Xiong G, Wang Q, Jing W, Chen H, Lv X, Liu S, Li T, Zhao Y, Han L. cGAS suppresses hepatocellular carcinoma independent of its cGAMP synthase activity. Cell Death Differ 2024:10.1038/s41418-024-01291-9. [PMID: 38594443 DOI: 10.1038/s41418-024-01291-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 03/25/2024] [Accepted: 04/02/2024] [Indexed: 04/11/2024] Open
Abstract
Cyclic GMP-AMP synthase (cGAS) is a key innate immune sensor that recognizes cytosolic DNA to induce immune responses against invading pathogens. The role of cGAS is conventionally recognized as a nucleotidyltransferase to catalyze the synthesis of cGAMP upon recognition of cytosolic DNA, which leads to the activation of STING and production of type I/III interferon to fight against the pathogen. However, given that hepatocytes are lack of functional STING expression, it is intriguing to define the role of cGAS in hepatocellular carcinoma (HCC), the liver parenchymal cells derived malignancy. In this study, we revealed that cGAS was significantly downregulated in clinical HCC tissues, and its dysregulation contributed to the progression of HCC. We further identified cGAS as an immune tyrosine inhibitory motif (ITIM) containing protein, and demonstrated that cGAS inhibited the progression of HCC and increased the response of HCC to sorafenib treatment by suppressing PI3K/AKT/mTORC1 pathway in cellular and animal models. Mechanistically, cGAS recruits SH2-containing tyrosine phosphatase 1 (SHP1) via ITIM, and dephosphorylates p85 in phosphatidylinositol 3-kinase (PI3K), which leads to the suppression of AKT-mTORC1 pathway. Thus, cGAS is identified as a novel tumor suppressor in HCC via its function independent of its conventional role as cGAMP synthase, which indicates a novel therapeutic strategy for advanced HCC by modulating cGAS signaling.
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Affiliation(s)
- Dapeng Ma
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
- School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Min Yang
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Caiyu Sun
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiuling Cui
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Gaozhong Xiong
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qiushi Wang
- Department of Critical Care Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Weiqiang Jing
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Haiqiang Chen
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaoting Lv
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shili Liu
- Department of Microbiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tao Li
- Department of Infectious Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yunxue Zhao
- Department of Pharmacology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lihui Han
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
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Zhang Z, Hu Y, Cui X, Lu M, Zhang M, Li C. Menopausal age and cardiovascular disease risk in American women: evidence from the National Health and Nutrition Examination Survey. Climacteric 2024; 27:159-164. [PMID: 37921228 DOI: 10.1080/13697137.2023.2273526] [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: 07/03/2023] [Accepted: 10/10/2023] [Indexed: 11/04/2023]
Abstract
OBJECTIVE Cardiovascular disease (CVD) is a significant contributor to the deaths of females, and premature menopause adds to the risk of CVD in females. Therefore, our study aimed to investigate the age of menopause and CVD incidence in American females using data from the National Health and Nutrition Examination Survey (NHANES). METHOD We analyzed data from 6347 females to investigate the association between menopausal age and the risk of CVD using multivariate logistic regression analysis. RESULTS The study found that a later menopausal age reduces the risk of developing CVD (odds ratio [OR] = 0.74, 95% confidence interval [CI] = 0.63 - 0.88, p < 0.001). Moreover, females with early-onset CVD had an increased risk of premature menopause before the age of 40 years (OR = 2.44, 95% CI = 1.60 - 3.72, p < 0.001). CONCLUSION Menopausal age is associated with the risk of developing CVD in American females. Specifically, if menopause occurs earlier, there is an increased risk of CVD. Additionally, early-onset CVD significantly raises the risk of premature menopause, which in turn has important implications for female reproductive health.
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Affiliation(s)
- Z Zhang
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Y Hu
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - X Cui
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - M Lu
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - M Zhang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - C Li
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
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Zhu C, Saquet A, Maraval V, Bijani C, Cui X, Poater A, Chauvin R. From Stilbenes to carbo-Stilbenes: an Encouraging Prospect. Chemistry 2024:e202400451. [PMID: 38407368 DOI: 10.1002/chem.202400451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Beyond previously described carbo-naphthalene and carbo-biphenyl, a novel type of bis-carbo-benzenic molecules is envisaged from the stilbene parent. The synthesis, structure, spectroscopic and electrochemical properties of two such carbo-stilbenes are described at complementary experimental and computational DFT levels. In the selected targets, the bare skeletal carbo-mer of carbo-stilbene is decorated by 8 or 10 phenyl groups, 0 or 2 tert-butyl groups, and 2 n-octyl chains, the later substituents being introduced to compensate anticipated solubility issues. As in the parent stilbene series, isomers of the phenylated carbo-stilbenes are characterized. The cis- and trans-isomers are, however, formed in almost equal amounts and could not be separated by either chromatography or crystallization. Nevertheless, due to a slow interconversion at the NMR time scale (up to 55 °C) the 1 H NMR signals of both isomers of the two carbo-stilbenes could be tentatively assigned. The calculated structure of the cis-isomer exhibits a helical shape, consistent with the observed magnetic shielding of phenyl p-CH nuclei residing inside the shielding cone of the facing C18 ring. The presence of the two isomers in solution also gives rise to quite broad UV-vis absorption spectra with main bands at ca 460, 560 and 710 nm, and a significant bathochromic shift for the decaphenylated carbo-stilbene vs the di-tert-butyl-octaphenylated counterpart. Square wave voltammograms do not show any resolution of the two isomers, giving a reversible reduction wave at -0.65 or -0.58 V/SCE, and an irreversible oxidation peak at 1.11 V/SCE, those values being classical for most carbo-benzene derivatives. Calculated NICS values (NICS(1)=-12.5±0.2 ppm) also indicate that the aromatic nature of the C18 rings is not markedly affected by the dialkynylbutatriene (DAB) connector between them.
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Affiliation(s)
- Chongwei Zhu
- Faculté Science et Ingénierie - Département de Chimie., Unsaturated molecules for physics, biology and chemistry group., Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31-062, Toulouse Cedex 09, France
- Key Laboratory of Functional Molecular Solids, Ministry of Education, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, China
| | - Alix Saquet
- LCC-CNRS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Valérie Maraval
- LCC-CNRS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | | | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, 361021, China
| | - Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química, Universitat de Girona, c/ Mª Aurèlia, Capmany 69, 17003, Girona, Catalonia, Spain
| | - Remi Chauvin
- Faculté Science et Ingénierie - Département de Chimie., Unsaturated molecules for physics, biology and chemistry group., Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31-062, Toulouse Cedex 09, France
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, 361021, China
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Huang MT, Qu Z, Liang PF, Liu WD, He ZY, Cui X, Guo L, Chen J, Li MJ, Huang XY, Zhang PH. [Clinical effect of modified vertical rectus abdominis myocutaneous flap in repairing skin and soft tissue defects after abdominoperineal resection for rectal cancer]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:57-63. [PMID: 38296237 DOI: 10.3760/cma.j.cn501225-20231030-00156] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Objective: To investigate the clinical effect of the modified vertical rectus abdominis myocutaneous flap in repairing the skin and soft tissue defect after abdominoperineal resection for rectal cancer. Methods: This study was a retrospective observational study. From June 2019 to July 2022, five male patients with low rectal cancer who were conformed to the inclusion criteria were admitted to the Department of Basic Surgery of Xiangya Hospital of Central South University, with ages ranging from 65 to 70 years and the sizes of the perianal skin ulcers ranging from 5 cm×4 cm to 11 cm×9 cm, and all of them underwent abdominoperineal resection. The secondary skin and soft tissue defects in the perineum with an area of 8 cm×6 cm-14 cm×12 cm (with the depth of pelvic floor dead space being 10-15 cm) were repaired intraoperatively with transplantation of modified vertical rectus abdominis myocutaneous flaps with the skin area being 9 cm×7 cm-16 cm×12 cm, the volume of the muscle being 18 cm×10 cm×5 cm-20 cm×12 cm×5 cm, and the vessel pedicle being 18-20 cm in length. During the operation, most of the anterior sheath of the rectus abdominis muscle was retained, the flap was transferred to the recipient area through the abdominal cavity, the remaining anterior sheaths of the rectus abdominis muscle on both sides of the donor area were repeatedly folded and sutured, the free edge of the transverse fascia of the abdomen was sutured with the anterior sheath of the rectus abdominis muscle, and the donor area skin was directly sutured. After the operation, the survival of the transplanted myocutaneous flap was observed. The occurrence of complications in the perineal recipient area was recorded within 2 weeks after the operation. The recovery of the perineal recipient area and the abdominal donor area was observed during follow-up, and the occurrence of complications in the donor area of the abdomen as well as the recurrence of tumors and metastasis were recorded. Results: All transplanted myocutaneous flaps in 5 patients survived after surgery. One patient had dehiscence of the incision in the perineal recipient area 2 days after surgery, which healed after 7 d with intermittent dressing changes and routine vacuum sealing drainage treatment. In the other 4 patients, no complications such as incisional rupture, incisional infection, or fat liquefaction occurred in the perineal recipient area within 2 weeks after surgery. Follow-up for 6-12 months after discharge showed that the skin of the perineal recipient area had good color, texture, and elasticity, and was not bloated in appearance; linear scars were left in the perineal recipient area and the abdominal donor area without obvious scar hyperplasia or hyperpigmentation; no complications such as incisional rupture, incisional infection, intestinal adhesion, intestinal obstruction, or weakening of the abdominal wall strength occurred in the abdominal donor area, and the abdominal appearance was good with no localized bulge or formation of abdominal hernia; there was no local recurrence of tumor or metastasis in any patient. Conclusions: The surgical approach of using the modified vertical rectus abdominis myocutaneous flap to repair the skin and soft tissue defects after abdominoperineal resection for rectal cancer is relatively simple in operation, can achieve good postoperative appearances of the donor and recipient areas with few complications, and is worthy of clinical promotion.
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Affiliation(s)
- M T Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Z Qu
- Department of Basic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - P F Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - W D Liu
- Department of Basic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Z Y He
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Cui
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Guo
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - J Chen
- Department of Basic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - M J Li
- Department of Medical Beauty Center, Hunan Provincial Institute of Occupational Disease Control, Changsha 410012, China
| | - X Y Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - P H Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
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Zhi Y, Liu L, Wang H, Chen X, Lv Y, Cui X, Chang H, Wang Y, Cui S. Prenatal exome sequencing analysis in fetuses with central nervous system anomalies. Ultrasound Obstet Gynecol 2023; 62:721-726. [PMID: 37204857 DOI: 10.1002/uog.26254] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/28/2023] [Accepted: 05/07/2023] [Indexed: 05/20/2023]
Abstract
OBJECTIVE To evaluate the utility of prenatal exome sequencing (pES) in fetuses with central nervous system (CNS) abnormalities. METHODS This was a retrospective cohort study of fetuses identified to have CNS abnormality on prenatal ultrasound and/or magnetic resonance imaging. All fetuses were first analyzed by chromosomal microarray analysis (CMA). Fetuses with a confirmed aneuploidy or causal pathogenic copy-number variant (CNV) on CMA did not undergo pES analysis and were excluded, while those with a negative CMA result were offered pES testing. RESULTS Of the 167 pregnancies included in the study, 42 (25.1%) were identified to have a pathogenic or likely pathogenic (P/LP) variant. The diagnostic rate was significantly higher in fetuses with a non-isolated CNS abnormality than in those with a single CNS abnormality (35.7% (20/56) vs 14.5% (8/55); P = 0.010). Moreover, when a fetus had three or more CNS abnormalities, the positive diagnostic rate increased to 42.9%. A total of 25/42 (59.5%) cases had de-novo mutations, while, in the remaining cases, mutations were inherited and carried a significant risk of recurrence. Families whose fetus carried a P/LP mutation were more likely to choose advanced pregnancy termination than those with a variant of uncertain significance, secondary/incidental finding or negative pES result (83.3% (25/30) vs 41.3% (38/92); P < 0.001). CONCLUSION pES improved the identification of genetic disorders in fetuses with CNS anomalies without a chromosomal abnormality or CNV identified on CMA, regardless of the number of CNS anomalies and presence of extracranial abnormality. We also demonstrated that pES findings can significantly impact parental decision-making. © 2023 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- Y Zhi
- Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - L Liu
- Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - H Wang
- Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - X Chen
- Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Y Lv
- Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - X Cui
- Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - H Chang
- Scientific Research Office, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Y Wang
- Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - S Cui
- Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
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Goldstein M, Gabriel N, Buchser W, Sentmanat M, Markovina S, Schwarz JK, Cui X. HPV Infection Causes Dependence on Alternative DNA Damage Response Pathways Providing Cancer Specific Targets for Radiosensitization. Int J Radiat Oncol Biol Phys 2023; 117:e231-e232. [PMID: 37784926 DOI: 10.1016/j.ijrobp.2023.06.1147] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Cancer-specific radiosensitization is an attractive approach to improving the efficacy of radiotherapy. However, drugs targeting ubiquitous DNA damage response pathways are not cancer specific and can increase radiation related side effects. Thus, there is an unmet need for tumor specific molecular targets. This approach requires an identification of DNA damage signaling pathways that are unique to cancer cells. We hypothesized that by expressing its genome in the host cells HPV infection can rewire DNA damage signaling making HPV-positive tumor cells dependent on alternative pathways to survive radiation, which can be exploited for radiosensitization of HPV-induced cancers. MATERIALS/METHODS We have performed a CRISPR/Cas9 screen in HPV-positive SiHa cells that either express HPV16 proteins E6 and E7 or contain a selective knock-out of E6 or E7. We used next-generation sequencing to determine the abundance of gRNA in cells that were mock-treated or irradiated. We identified genes that were required for survival of radiation specifically in the context of E6 or E7 expression. Results of the screen were validated by generating knock-outs of the discovered genes using CRISPR/Cas9. By applying an array of molecular tools to analyze cell survival, cell cycle progression and mitotic progression we assessed the role of these genes in radiation response in HPV-positive cancer cells. RESULTS We have identified genes that are required for survival of radiation-induced DNA damage in the context of either E6 or E7 expression. We demonstrate that targeting these genes results in hypersensitization of cervical cancer cells to radiation specifically in the presence of E6 or E7. We show that the gene product required for survival in E6-expressing cells is critical for mitotic progression after radiation exposure serving as a member of a protein complex stabilizing the attachment of mitotic spindle to centromeres. CONCLUSION We have uncovered specific genes that are critical for DNA damage response and cell survival after radiation exposure in HPV-positive cells. Our findings suggest that expression of the HPV proteins E6 and E7 rewires DNA damage signaling causing dependence on alternative response pathways. We propose that these pathways can be targeted for a tumor-specific radiosensitization of HPV-induced cancers.
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Affiliation(s)
- M Goldstein
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | - N Gabriel
- Washington University, Department of Radiation Oncology, St. Louis, MO
| | - W Buchser
- Washington University in St. Louis, St. Louis, MO
| | - M Sentmanat
- Washington University in St. Louis, St. Louis, MO
| | - S Markovina
- Washington University School of Medicine in St. Louis, Department of Radiation Oncology, St. Louis, MO
| | - J K Schwarz
- Washington University School of Medicine in St. Louis, St. Louis, MO
| | - X Cui
- Washington University in St. Louis, St. Louis, MO
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Costa PJ, Martins FF, Pi C, Cui X, Calhorda MJ. C-H functionalization of quinoline N-oxides catalyzed by Pd(II) complexes: a computational study. Phys Chem Chem Phys 2023; 25:22755-22767. [PMID: 37605868 DOI: 10.1039/d3cp02445h] [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: 08/23/2023]
Abstract
Pd(II) catalysts, particularly the acetate salt in acetic acid, tended to favor regioselective C-H activation of quinoline N-oxides (QOs) at the C2 position. However, Pd(II)Cl2 was shown to catalyze their C-H activation at C8 and, in the presence of water, C8-H activation was accompanied by the formation of 2-quinolinones. The aim of the DFT study described in this work was to shed light on the complete mechanism of these competing catalytic reactions, when PdCl2 reacts with QO and benzaldehyde in dichloroethane. C-H activation of QO was the first step of the reaction and involved either a metallacycle, with a CQO-Pd(II) σ-bond and a C(8)-H-Pd(II) agostic bond, or an η3-QO complex, with three carbon atoms of the heteroring of QO binding PdCl2. The first situation led to the unusual C8 activation and the second to C2 activation. The σ-metallacycle undergoes C8-H activation and the energy of the TOF determining the transition state to form the product is ∼17 kcal mol-1, while for the reaction through the π-metallacycle (C2-H activation) the corresponding energy is higher (∼29 kcal mol-1) and thus is not competitive under the same conditions. The reaction proceeding through the σ-complex, activating the C8 position, is preferred, in agreement with experimental results. Both reactions involve oxidation of Pd(II) to Pd(IV) and the catalyst is regenerated. When small amounts of water are added to the reaction mixture, C8-H activation (acylation) results from the same σ-metallacycle with the same barrier, but the simultaneous formation of 2-quinolinones is more complicated. It starts with OH- attack at the C2 position, and is followed by the migration of two hydrogen atoms, and the final reductive elimination step ends with Pd(0). The higher barriers for the migration and reoxidation of Pd(0) are associated with the more demanding reaction conditions. The different reactivity of Pd(II)(OAc)2 under analogous conditions is clarified, as it is only capable of forming the above mentioned π-complex and thus of activating the C2 position of QO. This catalyst can preferentially activate the C8-H bond under rather different conditions, including in particular acetic acid medium, as shown by other authors.
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Affiliation(s)
- Paulo J Costa
- BioISI - Instituto de Biossistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | - Frederico F Martins
- BioISI - Instituto de Biossistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | - Chao Pi
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Xiuling Cui
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Maria José Calhorda
- BioISI - Instituto de Biossistemas e Ciências Integrativas, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
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Yue X, Zhao X, Huang J, Gao Y, Feng Y, Cui X. Rhodium(III)-catalysed redox neutral alkylation of 3-arylbenzo[ d]isoxazoles: easy access to substituted succinimides. Org Biomol Chem 2023. [PMID: 37435618 DOI: 10.1039/d3ob00851g] [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: 07/13/2023]
Abstract
A convenient method for the alkylation of 3-arylbenzo[d]isoxazoles with maleimides under redox-neutral conditions has been developed, giving a series of substituted succinimides in up to 99% yield. This transformation is highly selective to give succinimides, and Heck-type products are successfully avoided. This protocol features 100% atom-economy and broad substrate tolerance, and provides a novel strategy for the synthesis of diverse succinimides and an opportunity for the succinylation of protein medication and for pharmacologists to discover first-in-class drugs.
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Affiliation(s)
- Xuelin Yue
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
| | - Xiang Zhao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
| | - Junwei Huang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
| | - Yijie Gao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
| | - Yadong Feng
- Engineering Research Center of Natural Cosmeceuticals College of Fujian Province and Department of Public Health and Medical Technology, Xiamen Medical College, Xiamen, Fujian 361023, P. R. China
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
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Zhao H, Wang Y, Wang Y, Gong H, Yinjun F, Cui X, Zhang J, Huang W. [Embedded 3D printing of porous silicon orbital implants and its surface modification]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:783-792. [PMID: 37313820 DOI: 10.12122/j.issn.1673-4254.2023.05.14] [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: 06/15/2023]
Abstract
OBJECTIVE To prepare customized porous silicone orbital implants using embedded 3D printing and assess the effect of surface modification on the properties of the implants. METHODS The transparency, fluidity and rheological properties of the supporting media were tested to determine the optimal printing parameters of silicone. The morphological changes of silicone after modification were analyzed by scanning electron microscopy, and the hydrophilicity and hydrophobicity of silicone surface were evaluated by measuring the water contact angle. The compression modulus of porous silicone was measured using compression test. Porcine aortic endothelial cells (PAOECs) were co-cultured with porous silicone scaffolds for 1, 3 and 5 days to test the biocompatibility of silicone. The local inflammatory response to subcutaneous porous silicone implants was evaluated in rats. RESULTS The optimal printing parameters of silicone orbital implants were determined as the following: supporting medium 4% (mass ratio), printing pressure 1.0 bar and printing speed 6 mm/s. Scanning electron microscopy showed that the silicone surface was successfully modified with polydopamine and collagen, which significantly improved hydrophilicity of the silicone surface (P < 0.05) without causing significant changes in the compression modulus (P > 0.05). The modified porous silicone scaffold had no obvious cytotoxicity and obviously promoted adhesion and proliferation of PAOECs (P < 0.05). In rats bearing the subcutaneous implants, no obvious inflammation was observed in the local tissue. CONCLUSION Poprous silicone orbital implants with uniform pores can be prepared using embedded 3D printing technology, and surface modification obviously improves hydrophilicity and biocompatibility of the silicone implants for potential clinical application.
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Affiliation(s)
- H Zhao
- Department of Human Anatomy, School of Basic Medical Sciences, Guangdong Medical University, Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, Dongguan 523808, China
- National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Digital Medical and Biomechanics, Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangzhou 510515, China
| | - Y Wang
- National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Digital Medical and Biomechanics, Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangzhou 510515, China
| | - Y Wang
- Guangdong Provincial People's Hospital Affiliated to Southern Medical University, Guangdong Academy of Medical Science, Guangzhou 510080, China
| | - H Gong
- National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Digital Medical and Biomechanics, Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangzhou 510515, China
| | - F Yinjun
- National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Digital Medical and Biomechanics, Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangzhou 510515, China
| | - X Cui
- Department of Human Anatomy, School of Basic Medical Sciences, Guangdong Medical University, Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, Dongguan 523808, China
| | - J Zhang
- Department of Human Anatomy, School of Basic Medical Sciences, Guangdong Medical University, Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, Dongguan 523808, China
| | - W Huang
- Department of Human Anatomy, School of Basic Medical Sciences, Guangdong Medical University, Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, Dongguan 523808, China
- National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Digital Medical and Biomechanics, Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangzhou 510515, China
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10
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Yue X, Gao Y, Huang J, Feng Y, Cui X. Rhodium-Catalyzed [4 + 2] Cascade Annulation to Easy Access N-Substituted Indenoisoquinolinones. Org Lett 2023; 25:2923-2927. [PMID: 37114383 DOI: 10.1021/acs.orglett.3c01032] [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: 04/29/2023]
Abstract
An efficient approach for the synthesis of N-substituted indenoisoquinolinones via rhodium(III)-catalyzed C-H bond activation/subsequent [4 + 2] cyclization starting from easily available 2-phenyloxazolines and 2-diazo-1,3-indandiones has been developed. A series of indeno[1,2-c]isoquinolinones were obtained in up to 93% yield through C-H functionalization, followed by intramolecular annulation, elimination, and ring-opening in a "one pot manner" under mild reaction conditions. This protocol features excellent atom- and step-economy and provides a novel strategy for the synthesis of N-substituted indenoisoquinolinones and a chance to study their biological activities.
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Affiliation(s)
- Xuelin Yue
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Yijie Gao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Junwei Huang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Yadong Feng
- Engineering Research Center of Natural Cosmeceuticals College of Fujian Province and Department of Public Health and Medical Technology, Xiamen Medical College, Xiamen, Fujian 361023, P. R. China
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
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11
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Yan X, Pi C, Cui X, Cui X, Wu Y. 2-Butyne Biscarbonate as a "Bridge" in Rhodium(III)-Catalyzed [4 + 2] Cyclization and Diels-Alder Reaction. Org Lett 2023; 25:2953-2957. [PMID: 37087759 DOI: 10.1021/acs.orglett.3c00531] [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: 04/25/2023]
Abstract
Described herein is the development of an unprecedented approach to construct multiple heterocycles with high selectivity through Rh(III)-catalyzed two- or three-component cyclization reaction from simple and readily available starting materials: N-methoxybenzamides, 2-butyne biscarbonate, and maleimides. This methodology provides an efficient strategy for the synthesis of diverse and complicated heterocycles in a one-pot manner and displays excellent features of extremely mild reaction conditions, easy operation, excellent regioselectivity, and good functional group compatibility.
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Affiliation(s)
- Xinxin Yan
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiaofan Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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12
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Ren J, Pi C, Cui X, Wu Y. Transition Metal-Controlled Divergent Annulations of Azomethine Imines with Iodonium Ylides via C-Centered [1,2]-Rearrangement. Org Lett 2023; 25:2582-2587. [PMID: 37036149 DOI: 10.1021/acs.orglett.3c00472] [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: 04/11/2023]
Abstract
Transition metal-controlled divergent annulation reactions of azomethine imines with iodonium ylides via C-centered [1,2]-rearrangement have been developed. The azomethine imino group, as a switchable and transient directing group (DG), underwent intramolecular nucleophilic addition and in situ generated bicyclic diaziridine, which facilitated the C-centered [1,2]-rearrangement and subsequent divergent annulations in the presence of different metal complexes as the catalysts. The benzo[c]chromen-1-one and pyrano[de]isochromene scaffolds could be independently constructed with Rh(III) and Ru(II), respectively. It was worth noting that the azomethine imino group was employed first as the switchable DG through rearrangement progress.
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Affiliation(s)
- Jie Ren
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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13
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Liang PF, Xu XS, Zhang PH, Bi CL, Zhang H, Huang MT, He ZY, Zeng JZ, Huang Y, Li J, Cui X, Zhou ST, Zhang MH, Huang XY. [Repair methods of complex facial defect wounds involving paranasal sinuses and their clinical effectiveness]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:221-227. [PMID: 37805717 DOI: 10.3760/cma.j.cn501225-20221130-00520] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To explore the repair methods of complex facial defect wounds involving paranasal sinuses and their clinical effectiveness. Methods: A retrospective observational study was conducted. From January 2020 to May 2022, 5 patients admitted to the Department of Burns and Plastic Surgery of Xiangya Hospital of Central South University and 4 patients admitted to the Department of Burns and Plastic Surgery of Chenzhou First People's Hospital with complex facial defect wounds involving paranasal sinuses met the inclusion criteria, including 6 males and 3 females, aged 35-69 years, including 4 patients with titanium mesh exposure combined with paranasal sinuses injury and 5 patients with tumor involving paranasal sinuses. After an adequate assessment of the damage by a multiple discipline team, titanium mesh removal, paranasal sinus debridement, and paranasal sinus mucosa removal were performed in patients with exposed titanium mesh, and radical tumor resection was performed in patients with tumors, with postoperative skin and soft tissue defects areas of 5.0 cm×2.5 cm to 18.0 cm×7.0 cm, anterior paranasal sinus wall defects/absence areas of 3 cm×2 cm to 6 cm×4 cm, and sinus cavity depths of 1 to 4 cm. Depending on the perforator course of the descending branch of the lateral circumflex femoral artery, the anterolateral femoral chimeric flap or anterolateral femoral myocutaneous flap (with flap area of 9 cm×4 cm to 19 cm×8 cm, muscle size of 5 cm×3 cm×3 cm to 11 cm×6 cm×3 cm) was transplanted to repair the defect, and the donor site wound was sutured directly. The type of tissue flap transplanted, the blood vessel of the recipient area, and the vascular anastomosis way during the operation, the recovery of the donor and recipient areas and the occurrence of complications after operation were observed. The appearance and blood supply of the recipient area and the recurrence of ulcers and tumors were followed up. Results: The anterolateral femoral myocutaneous flap transplantation was performed in 6 patients, and the anterolateral femoral chimeric flap transplantation was performed in 3 patients. The blood vessels in recipient areas were facial arteries and veins in 3 cases and superficial temporal arteries and veins in 6 cases. The superficial temporal arteries and veins were bridged with blood vessels in tissue flaps by flow-through way in 2 patients, and end-to-end anastomosis of blood vessels in donor and recipient areas was performed in 7 patients. After operation, all the tissue flaps survived, and the facial defect wounds were well repaired without cerebrospinal fluid leakage or paranasal sinus secretion leakage, no intracranial infection occurred, and the wounds in donor areas were healed well. Follow-up of 6-35 months after operation showed that all the patients had good blood supply in the recipient area, and the shape was acceptable; 4 patients with exposed titanium mesh had no recurrence of ulceration, and 5 patients with tumor had no local tumor recurrence or metastasis. Conclusions: Based on an adequate assessment of the extent of paranasal sinuses involved in the facial wound and the nature of the defect, good clinical effects can be achieved by using the anterolateral femoral muscle flap or the anterolateral femoral chimeric flap transplantation to repair complex facial defect wounds with open paranasal sinuses.
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Affiliation(s)
- P F Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X S Xu
- Department of Burns and Plastic Surgery, Chenzhou First People's Hospital, Chenzhou 423099, China
| | - P H Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - C L Bi
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - H Zhang
- Department of Otolaryngology-Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - M T Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Z Y He
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - J Z Zeng
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Y Huang
- Department of Burns and Plastic Surgery, Chenzhou First People's Hospital, Chenzhou 423099, China
| | - J Li
- Department of Burns and Plastic Surgery, Chenzhou First People's Hospital, Chenzhou 423099, China
| | - X Cui
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - S T Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - M H Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Y Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
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14
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Ding C, Xu J, Lin Z, Xu S, Cui X, Sun W, Tian G, Li C, Luo Z, Zhou Y, Yang Y. [Malaria control knowledge and behaviors and their influencing factors among residents in Banlao Township, Cangyuan County, Yunnan Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:44-50. [PMID: 36974014 DOI: 10.16250/j.32.1374.2022248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
OBJECTIVE To investigate the awareness of malaria-related knowledge, the use of mosquito nets and their influencing factors among residents in Banlao Township, Cangyuan County, Yunnan Province. METHODS In August 2020, 19 settlement sites in Banlao Township, Cangyuan County, Lincang City, Yunnan Province were selected as study areas, and permanent residents at ages of 10 years and older were enrolled for a questionnaire survey, including residents' demographics, family economic status, malaria control knowledge and use of mosquito nets. In addition, the factors affecting the use of mosquito nets in the night prior to the survey were identified using multivariate logistic regression analysis. RESULTS A total of 320 questionnaires were allocated, and all were recovered (a 100% recovery rate). There were 316 valid questionnaires, with an effective recovery rate of 98.75%. The 316 respondents included 152 men and 164 women and 250 Chinese respondents and 66 foreign respondents. The awareness of clinical syndromes of malaria was significantly higher among Chinese residents (71.60%) than among foreign residents (50.00%) (χ2 = 11.03, P < 0.01), and the proportions of Chinese and foreign residents sleeping under mosquito nets were 46.00% and 69.70% on the night prior to the survey, respectively (χ2 = 11.73, P < 0.01). Multivariate logistic regression analysis identified ethnicity group and type of residence as factors affecting the use of mosquito nets in the night prior to the survey. CONCLUSIONS The awareness of malaria control knowledge, the coverage and the use of mosquito nets were low among residents in Banlao Township, Cangyuan County, Yunnan Province. Targeted health education is recommended to improve the awareness of malaria control knowledge and self-protection ability. In addition, improving the allocation of long-lasting mosquito nets and health education pertaining to their uses and increasing the proportion of using mosquito nets correctly is needed to prevent re-establishment of imported malaria.
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Affiliation(s)
- C Ding
- School of Public Health, Kunming Medical University, Kunming, Yunnan 650500, China
- Yunnan Institute of Parasitic Diseases, Yunnan Provincial Center of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Yunnan Innovative Team of Key Techniques for Vector Borne Disease Control and Prevention, Training Base of International Scientific Exchange and Education in Tropical Diseases for South and Southeast Asia, Pu'er, Yunnan 665000, China
| | - J Xu
- Yunnan Institute of Parasitic Diseases, Yunnan Provincial Center of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Yunnan Innovative Team of Key Techniques for Vector Borne Disease Control and Prevention, Training Base of International Scientific Exchange and Education in Tropical Diseases for South and Southeast Asia, Pu'er, Yunnan 665000, China
| | - Z Lin
- Yunnan Institute of Parasitic Diseases, Yunnan Provincial Center of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Yunnan Innovative Team of Key Techniques for Vector Borne Disease Control and Prevention, Training Base of International Scientific Exchange and Education in Tropical Diseases for South and Southeast Asia, Pu'er, Yunnan 665000, China
| | - S Xu
- Yunnan Institute of Parasitic Diseases, Yunnan Provincial Center of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Yunnan Innovative Team of Key Techniques for Vector Borne Disease Control and Prevention, Training Base of International Scientific Exchange and Education in Tropical Diseases for South and Southeast Asia, Pu'er, Yunnan 665000, China
| | - X Cui
- Lincang Center for Disease Control and Prevention, Yunnan Province, China
| | - W Sun
- Cangyuan Wa Autonomous County Center for Disease Control and Prevention, Yunnan Province, China
| | - G Tian
- Cangyuan Wa Autonomous County Center for Disease Control and Prevention, Yunnan Province, China
| | - C Li
- Banlao Township Healthcare Center, Cangyuan Wa Autonomous County, Yunnan Province, China
| | - Z Luo
- Lancang Lahu Autonomous County Center for Disease Control and Prevention, Yunnan Province, China
| | - Y Zhou
- Yunnan Institute of Parasitic Diseases, Yunnan Provincial Center of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Yunnan Innovative Team of Key Techniques for Vector Borne Disease Control and Prevention, Training Base of International Scientific Exchange and Education in Tropical Diseases for South and Southeast Asia, Pu'er, Yunnan 665000, China
| | - Y Yang
- School of Public Health, Kunming Medical University, Kunming, Yunnan 650500, China
- Yunnan Institute of Parasitic Diseases, Yunnan Provincial Center of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Yunnan Innovative Team of Key Techniques for Vector Borne Disease Control and Prevention, Training Base of International Scientific Exchange and Education in Tropical Diseases for South and Southeast Asia, Pu'er, Yunnan 665000, China
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15
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Shen X, Sun C, Cheng Y, Ma D, Sun Y, Lin Y, Zhao Y, Yang M, Jing W, Cui X, Han L. cGAS Mediates Inflammation by Polarizing Macrophages to M1 Phenotype via the mTORC1 Pathway. J Immunol 2023; 210:1098-1107. [PMID: 36881861 DOI: 10.4049/jimmunol.2200351] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 12/21/2022] [Indexed: 03/09/2023]
Abstract
Cyclic GMP-AMP synthase (cGAS), as a cytosolic DNA sensor, plays a crucial role in antiviral immunity, and its overactivation induces excess inflammation and tissue damage. Macrophage polarization is critically involved in inflammation; however, the role of cGAS in macrophage polarization during inflammation remains unclear. In this study, we demonstrated that cGAS was upregulated in the LPS-induced inflammatory response via the TLR4 pathway, and cGAS signaling was activated by mitochondria DNA in macrophages isolated from C57BL/6J mice. We further demonstrated that cGAS mediated inflammation by acting as a macrophage polarization switch, which promoted peritoneal macrophages and the bone marrow-derived macrophages to the inflammatory phenotype (M1) via the mitochondrial DNA-mTORC1 pathway. In vivo studies verified that deletion of Cgas alleviated sepsis-induced acute lung injury by promoting macrophages to shift from the M1 phenotype to the M2 phenotype. In conclusion, our study demonstrated that cGAS mediated inflammation by regulating macrophage polarization through the mTORC1 pathway, and it further provided a potential therapeutic strategy for inflammatory diseases, especially sepsis-induced acute lung injury.
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Affiliation(s)
- Xuecheng Shen
- Shandong Provincial Key Laboratory of Infection and Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Jinan, Shandong, China
| | - Caiyu Sun
- Shandong Provincial Key Laboratory of Infection and Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Jinan, Shandong, China
| | - Yeping Cheng
- Shandong Provincial Key Laboratory of Infection and Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Jinan, Shandong, China
| | - Dapeng Ma
- Shandong Provincial Key Laboratory of Infection and Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Jinan, Shandong, China
| | - Yanlin Sun
- Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yueke Lin
- Shandong Provincial Key Laboratory of Infection and Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Jinan, Shandong, China
| | - Yunxue Zhao
- Department of Pharmacology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Min Yang
- Shandong Provincial Key Laboratory of Infection and Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Jinan, Shandong, China
| | - Weiqiang Jing
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiuling Cui
- Shandong Provincial Key Laboratory of Infection and Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Jinan, Shandong, China
| | - Lihui Han
- Shandong Provincial Key Laboratory of Infection and Immunology, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Jinan, Shandong, China
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16
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Ren J, Yang L, Pi C, Cui X, Wu Y. Rhodium(III)‐Catalyzed Divergent C−H Functionalization of
N
‐Aryl Amidines with Iodonium Ylides: Access to Carbazolones and Zwitterionic Salts. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202300173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Affiliation(s)
- J. Ren
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 P. R. China
| | - L. Yang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 P. R. China
| | - C. Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 P. R. China
| | - X. Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 P. R. China
| | - Y. Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 P. R. China
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17
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Shen J, Cui B, Huang J, Lin S, Cui X. One‐Pot Synthesis of Benzodiazepines through Ru(II)‐Catalyzed Regioselective [5+2] Annulation of N‐Aryl Amidines with Alkynyl Cyclobutyl Acetates. European J Org Chem 2023. [DOI: 10.1002/ejoc.202300064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Jian Shen
- Huaqiao University Medical School CHINA
| | - Bo Cui
- Huaqiao University Medical School CHINA
| | | | | | - Xiuling Cui
- Zhengzhou University Chemistry Department Daxue Road 75# 450052 Zhengzhou CHINA
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18
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Wang W, Pi C, Cui X, Wu Y. TBAI-Catalysed Formal [4+4]-Cycloaddition: Easy Access to Oxa-Bridged Eight-Membered Heterocycles. Chemistry 2023; 29:e202300301. [PMID: 36757635 DOI: 10.1002/chem.202300301] [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] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/10/2023]
Abstract
TBAI-catalysed [4+4]-cyclization reaction of anthranils with hydrazones to deliver oxa-bridged eight-membered heterocycles in accepted yields was developed. Preliminary mechanistic studies indicated that the reaction involved the in situ generation of vinyldiazenes from readily available hydrazones followed by an aza-Michael addition of the anthranil substrates onto the vinyldiazenes and subsequent annulation. This transformation involved the formation of two new C-N bonds and C-O bond in one pot, overcoming the synthetic limitations of anthranils in organic chemistry. This strategy benefits from high efficiency and atomic economy with mild reaction conditions.
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Affiliation(s)
- Wenxiang Wang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
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Ren J, Yang L, Pi C, Cui X, Wu Y. Rhodium(III)‐Catalyzed Divergent C‐H Functionalization of <i>N</i>‐Aryl Amidines with Iodonium Ylides: Access to Carbazolones and Zwitterionic Salts. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202201390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Han Y, Cui X. Copper-Catalyzed Enantioselective Radical Heteroatomic S—O Cross-Coupling. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202300013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
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21
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Tang Z, Pi C, Wu Y, Cui X. Rhodium-Catalyzed Tandem Acylmethylation/Annulation Reactions of 2-Aryl-2 H-indazoles with Sulfoxonium Ylides: Easy Access to 6-Arylindazolo[2,3- a]quinolines. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202206052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
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Yu L, Cui X, Song P, Li C, Zhao H, Chang Y. Perioperative pectoral nerve block type II and postoperative recurrence in breast cancer: a randomized controlled trial. BMC Surg 2022; 22:447. [PMID: 36585623 PMCID: PMC9805115 DOI: 10.1186/s12893-022-01895-3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 12/23/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND A new technique for analgesia called pectoral nerve block is widely used in surgeries of breast cancer. Pectoral nerve block type II (Pecs II) block has less influence on immunity when compared with general anesthesia method. The purpose of this research is to demonstrate whether Pecs II block has influence on the recurrence of breast cancer after surgical operation. METHODS 526 breast cancer patients were recruited in this research and randomized into general anesthesia group and general anesthesia with Pecs II block group. Recurrence-free survival (RFS), distant recurrence-free survival (DRFS), and overall survival (OS) were evaluated for the two groups. RESULTS Based on the statistical data, only the consumption of remifentanil was dramatically reduced by the performance of Pecs II block when compared with general anesthesia method. The performance of Pecs II block had no significant influence on OS, RFS, and DRFS of breast cancer patients after surgery. ASA physical status III, TNM stage 2 + 3, and mastectomy were proved to have association with lower recurrence-free survival. CONCLUSION In conclusion, the performance of Pecs II block declined the remifentanil consumption during surgery of breast cancer. Meanwhile, the performance of Pecs II block had no significant influence on the OS, RFS, and DRFS of breast cancer patients after surgical resection.
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Affiliation(s)
- Lili Yu
- grid.452270.60000 0004 0614 4777Department of Anesthesiology, Cangzhou Central Hospital, No.16, Xinhua Road, Cangzhou, 061000 Hebei China
| | - Xiuling Cui
- grid.452270.60000 0004 0614 4777Department of Anesthesiology, Cangzhou Central Hospital, No.16, Xinhua Road, Cangzhou, 061000 Hebei China
| | - Panpan Song
- grid.452270.60000 0004 0614 4777Department of Anesthesiology, Cangzhou Central Hospital, No.16, Xinhua Road, Cangzhou, 061000 Hebei China
| | - Chunlei Li
- grid.452270.60000 0004 0614 4777Department of Anesthesiology, Cangzhou Central Hospital, No.16, Xinhua Road, Cangzhou, 061000 Hebei China
| | - Haochen Zhao
- grid.452270.60000 0004 0614 4777Department of Anesthesiology, Cangzhou Central Hospital, No.16, Xinhua Road, Cangzhou, 061000 Hebei China
| | - Yulin Chang
- grid.452270.60000 0004 0614 4777Department of Anesthesiology, Cangzhou Central Hospital, No.16, Xinhua Road, Cangzhou, 061000 Hebei China
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Yang L, Pi C, Wu Y, Cui X. Lewis Acid-Catalyzed [3 + 2]-Cyclization of Iodonium Ylides with Azadienes: Access to Spiro[benzofuran-2,2'-furan]-3-ones. Org Lett 2022; 24:7502-7506. [PMID: 36218222 DOI: 10.1021/acs.orglett.2c02660] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly regioselective synthesis of spiro[benzofuran-2,2'-furan]-3-ones has been explored via Lewis acid-catalyzed [3 + 2] cyclization of iodonium ylides with azadienes. The acidity of the Lewis acid was significantly strengthened with strong hydrogen bond donors, thereby promoting the enolization isomerization of iodonium ylides for the subsequent cycloaddition. This reaction was compatible with a broad range of substrates under the mild reaction conditions, and efficiently delivered spiro-heterocycles with excellent stereoselectivity.
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Affiliation(s)
- Liu Yang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, People's Republic of China
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Yu L, Zhou Q, Li W, Zhang Q, Cui X, Chang Y, Wang Q. Effects of Esketamine Combined with Ultrasound-Guided Pectoral Nerve Block Type II on the Quality of Early Postoperative Recovery in Patients Undergoing a Modified Radical Mastectomy for Breast Cancer: A Randomized Controlled Trial. J Pain Res 2022; 15:3157-3169. [PMID: 36311293 PMCID: PMC9604419 DOI: 10.2147/jpr.s380354] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022] Open
Abstract
Purpose To evaluate the effect of esketamine combined with ultrasound-guided pectoral nerve block type II (Pecs II block) on the quality of early postoperative recovery in patients undergoing a modified radical mastectomy (MRM) for breast cancer. Patients and Methods A total of 136 female patients undergoing an elective MRM for unilateral breast cancer (UBC) for the first time were randomly divided into the control group (group C, n=68) and the experimental group (PE group, n=68). In group C, sufentanil was used for anesthesia induction and patient-controlled intravenous analgesia (PCIA). Esketamine was used for anesthesia induction and PCIA in the PE group. Ultrasound-guided Pecs II block was performed after anesthesia induction in the two groups. All other anesthetics were administered in the same way. The primary outcome was the 40-item Quality of Recovery (QoR-40) score at discharge. The secondary outcomes were postoperative Observer’s Assessment of Alertness/Sedation Scale (OAA/S) scores, time of anesthesia recovery, Numeric Rating Scale (NRS) scores, serum inflammatory cytokines interleukin-10 (IL-10), interleukin-6 (IL-6), and interleukin-1ß (IL-1ß), Hospital Anxiety and Depression Scale (HADS) scores, length of postoperative Postanesthesia Care Unit (PACU) stay, length of postoperative hospital stay and patient satisfaction score. Results Compared with group C, the PE group had higher QoR-40 scores at discharge (P<0.05), decreased IL-6 levels at 24 h after surgery (P<0.05), lower anxiety and depression scores (P<0.05) and higher patient satisfaction scores at discharge (P<0.05). No significant difference was found in the NRS score postoperatively between the two groups (P>0.05). There was no significant difference in the postoperative OAA/S score, time of anesthesia recovery, length of postoperative PACU and hospital stays between the two groups (P>0.05). Conclusion Esketamine combined with Pecs II block can be used for anesthesia in MRM for breast cancer, thus, improving patient quality of early postoperative recovery.
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Affiliation(s)
- Lili Yu
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, People’s Republic of China,Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, People’s Republic of China
| | - Qi Zhou
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, People’s Republic of China
| | - Wei Li
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, People’s Republic of China
| | - Qin Zhang
- Surgical Department of Thyroid and Mammary Tumors, Cangzhou Central Hospital, Cangzhou, People’s Republic of China
| | - Xiuling Cui
- Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, People’s Republic of China
| | - Yulin Chang
- Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, People’s Republic of China
| | - Qiujun Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, People’s Republic of China,Correspondence: Qiujun Wang, Department of Anesthesiology, The Third Hospital of Hebei Medical University, No. 139, Ziqiang Road, Shijiazhuang City, Hebei, People’s Republic of China, Tel/Fax +86-311-8860-2072, Email
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Tang Z, Pi C, Wu Y, Cui X. Visible-light-promoted tandem decarboxylation coupling/cyclization of N-aryl glycines with quinoxalinones: Easy access to tetrahydroimidazo[1,5-a]quinoxalin-4(5H)-ones. Green Synthesis and Catalysis 2022. [DOI: 10.1016/j.gresc.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Baccaro M, Montaño MD, Cui X, Mackevica A, Lynch I, von der Kammer F, Lodge RW, Khlobystov AN, van den Brink NW. Influence of dissolution on the uptake of bimetallic nanoparticles Au@Ag-NPs in soil organism Eisenia fetida. Chemosphere 2022; 302:134909. [PMID: 35551940 DOI: 10.1016/j.chemosphere.2022.134909] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
A key aspect in the safety testing of metal nanoparticles (NPs) is the measurement of their dissolution and of the true particle uptake in organisms. Here, based on the tendency of Ag-NP to dissolve and Au-NP to be inert in the environment, we exposed the earthworm Eisenia fetida to Au core-Ag shell NPs (Au@Ag-NPs, Ag-NPs with a Au core) and to both single and combined exposures of non-coated Au-NPs, Ag-NPs, Ag+ and Au+ ions in natural soil. Our hypothesis was that the Ag shell would partially or completely dissolve from the Au@Ag-NPs and that the Au core would thereby behave as a tracer of particulate uptake. Au and Ag concentrations were quantified in all the soils, in soil extract and in organisms by inductively coupled plasma mass spectrometry (ICP-MS). The earthworm exposed to Au@Ag-NPs, and to all the combinations of Ag and Au, were analyzed by single particle inductively coupled plasma time-of-flight mass spectrometry (spICP-TOFMS) to allow the quantification of the metals that were truly part of a bimetallic particle. Results showed that only 5% of the total metal amounts in the earthworm were in the bimetallic particulate form and that the Ag shell increased in thickness, suggesting that biotransformation processes took place at the surface of the NPs. Additionally, the co-exposure to both metal ions led to a different uptake pattern compared to the single metal exposures. The study unequivocally confirmed that dissolution is the primary mechanism driving the uptake of (dissolving) metal NPs in earthworms. Therefore, the assessment of the uptake of metal nanoparticles is conservatively covered by the assessment of the uptake of their ionic counterpart.
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Affiliation(s)
- M Baccaro
- Division of Toxicology, Wageningen University & Research, P.O. Box 8000, 6700, EA, Wageningen, the Netherlands.
| | - M D Montaño
- Department of Environmental Geosciences, University of Vienna, 14 Althanstraße, Vienna, 1090, Austria
| | - X Cui
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - A Mackevica
- Department of Environmental Geosciences, University of Vienna, 14 Althanstraße, Vienna, 1090, Austria
| | - I Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - F von der Kammer
- Department of Environmental Geosciences, University of Vienna, 14 Althanstraße, Vienna, 1090, Austria
| | - R W Lodge
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - A N Khlobystov
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - N W van den Brink
- Division of Toxicology, Wageningen University & Research, P.O. Box 8000, 6700, EA, Wageningen, the Netherlands
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Han X, Pi C, Hu D, Hu W, Wu Y, Cui X. Cobalt(II)-Catalyzed C-H and N-H Functionalization of 1-Arylpyrazolidinones with Dioxazolones as Bifunctional Synthons. Org Lett 2022; 24:4650-4655. [PMID: 35704765 DOI: 10.1021/acs.orglett.2c01780] [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: 11/29/2022]
Abstract
Dioxazolone has been attractive as an important synthon for a direct C-H amidation through a nitrene intermediate or Curtius rearrangement to form the isocyanate. However, the combination of two reaction models of dioxazolone has not been reported. Herein, a cobalt-catalyzed C-H and N-H functionalization of 1-arylpyrazolidinones with dioxazolones was developed. The dioxazolones acted as an amidated and carboxamidated reagent. Three C-N bonds were formed in a "one-pot" manner, which promoted the requirement of synthetic diversity.
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Affiliation(s)
- Xiliang Han
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Di Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Wei Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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Abstract
A successful example of oxidative meta-dehydrogenative allylation of arenes with alkenes has been developed using Ru(PPh3)3Cl2 as a catalyst and DTBP as an oxidant. In the allylation process, pyrimidines, pyrazoles, and purines, found widely in nucleosides, were effective auxiliary groups. Gram-scale experiments took place smoothly under optimized conditions. Mechanistic studies indicated that ruthenium-catalyzed meta-dehydrogenative allylation was a free-radical process. The allylation process developed herein provides an efficient and practical strategy to prepare versatile meta-allylated arenes.
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Affiliation(s)
- Chunqi Jia
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Nini Wu
- College of Chemistry and Chemical Engineering, Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, Anyang Normal University, Anyang 455002, P. R. China
| | - Gang Li
- College of Chemistry and Chemical Engineering, Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, Anyang Normal University, Anyang 455002, P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
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Hu W, Pi C, Hu D, Han X, Wu Y, Cui X. Rh(III)-Catalyzed Synthesis of Indazolo[2,3- a]quinolines: Vinylene Carbonate as C1 and C2 Building Blocks. Org Lett 2022. [DOI: 10.1021/acs.orglett.2c00580
expr 911091169 + 878873796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Wei Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Di Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiliang Han
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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Hu W, Pi C, Hu D, Han X, Wu Y, Cui X. Rh(III)-Catalyzed Synthesis of Indazolo[2,3- a]quinolines: Vinylene Carbonate as C1 and C2 Building Blocks. Org Lett 2022; 24:2613-2618. [PMID: 35377649 DOI: 10.1021/acs.orglett.2c00580] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A rhodium-catalyzed cyclization of azobenzenes and vinylene carbonate via C-H bond activation to construct indazolo[2,3-a]quinolines has been developed. This protocol offers an efficient method for synthesis of the titled products in good yields with broad functional group tolerance. In this reaction, three C-C bonds and C-N bond are formed in one pot, and vinylene carbonate (VC) acts as C1 and C2 synthons as well as "vinylene transfer" agent and acylation reagent in the construction of target-fused heterocycles. Moreover, the products exhibit favorable fluorescence properties, which indicate their potential application as fluorescent materials and biosensors.
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Affiliation(s)
- Wei Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Di Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiliang Han
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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Li Z, Li D, Xiang H, Huang J, Zheng Y, Zhu C, Cui X, Pi C, Xu H. Copper-catalyzed asymmetric propargylic substitution of anthrones and propargylic esters. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Cui X, Wang S, Jiang N, Li Z, Li X, Jin M, Yang B, Jia N, Hu G, Liu Y, He Y, Liu Y, Zhao S, Yu Q. Establishment of prediction models for COVID-19 patients in different age groups based on Random Forest algorithm. QJM 2022; 114:795-801. [PMID: 34668535 DOI: 10.1093/qjmed/hcab268] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 09/21/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) has rapidly become a global pandemic. Age is an independent factor in death from the disease, and predictive models to stratify patients according to their mortality risk are needed. AIM To compare the laboratory parameters of the younger (≤70) and the elderly (>70) groups, and develop death prediction models for the two groups according to age stratification. DESIGN A retrospective, single-center observational study. METHODS This study included 437 hospitalized patients with laboratory-confirmed COVID-19 from Tongji Hospital in Wuhan, China, 2020. Epidemiological information, laboratory data and outcomes were extracted from electronic medical records and compared between elderly patients and younger patients. First, recursive feature elimination (RFE) was used to select the optimal subset. Then, two random forest (RF) algorithms models were built to predict the prognoses of COVID-19 patients and identify the optimal diagnostic predictors for patients' clinical prognoses. RESULTS Comparisons of the laboratory data of the two age groups revealed many different laboratory indicators. RFE was used to select the optimal subset for analysis, from which 11 variables were screened out for the two groups. The RF algorithm were built to predict the prognoses of COVID-19 patients based on the best subset, and the area under ROC curve (AUC) of the two groups is 0.874 (95% CI: 0.833-0.915) and 0.842 (95% CI: 0.765-0.920). CONCLUSION Two prediction models for COVID-19 were developed in the patients with COVID-19 based on random forest algorithm, which provides a simple tool for the early prediction of COVID-19 mortality.
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Affiliation(s)
- X Cui
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - S Wang
- Department of Intensive Care Unit, China-Japan Union Hospital of Jilin University, Changchun 130000, China
| | - N Jiang
- Department of Emergency, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130000, China
| | - Z Li
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - X Li
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - M Jin
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - B Yang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology,1095 Jiefang Road, Wuhan 430000, China
| | - N Jia
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - G Hu
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - Y Liu
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - Y He
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - Y Liu
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
| | - S Zhao
- Department of Emergency, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130000, China
| | - Q Yu
- From the Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun 130021, China
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Zhang H, Cui X. Study on Chiral Arene Ruthenium(II)-Catalyzed Asymmetric C—H Activation. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202200033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sun XQ, Tan GQ, Gao Z, Liu XJ, Xia MT, Zhang YY, Sun RJ, Cui X. Lnc-AC145676.2.1-6-3 can influence STX3-induced abnormal autophagy by sponging hsa-miR-1292-3p in intestinal aGVHD. Eur Rev Med Pharmacol Sci 2022; 26:573-584. [PMID: 35113433 DOI: 10.26355/eurrev_202201_27884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Intestinal acute graft-versus-host disease (aGVHD) is a serious complication of allogeneic hematopoietic stem cell transplantation (allo-HSCT). Abnormal autophagy levels in intestinal aGVHD have been confirmed in many studies. LncRNAs exert coregulatory functions and participate in a variety of intracellular regulatory processes. In this study, we investigated how lnc-AC145676.2.1-6-3 regulates dysregulated STX3-related autophagy in aGVHD. MATERIALS AND METHODS First, we established a mouse model of aGVHD by transplanting a mononuclear cell suspension from Balb/c donor mice treated with 60Co X-rays into CB6F1 recipient mice. STX3-related indicators were analyzed by Western blotting (WB) and immunohistochemistry which confirmed that STX3 plays an important role in dysregulating autophagy in intestinal aGVHD. TNF-αinduced Caco-2 cells, which is an in vitro model of intestinal barrier dysfunction, were established to verify the effect of STX3. The direct interaction between the partners of lnc-AC145676.2.1-6-3-mediated hsa-miR-1292-3p and STX3 axis was evaluated by the Dual-Luciferase activity assay. We performed PCR, WB, and immunofluorescence in Caco-2 cells to determine whether the abnormal autophagy levels were influenced by lnc-AC145676.2.1-6-3. RESULTS The results showed that lnc-AC145676.2.1-6-3 could significantly suppress the number of autophagic vacuoles, the LC3-II/I ratio, and beclin1 levels by increasing STX3 levels. CONCLUSIONS Lnc-AC145676.2.1-6-3 may play an important role in intestinal aGVHD by targeting STX3.
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Affiliation(s)
- X-Q Sun
- Department of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China.
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Xu L, Lu L, Cai J, Feng Y, Cui X. Construction of Diaminobenzoquinone Imines through Radical Coupling of Aminophenols with Amine under UV-Light. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Xu H, Pi C, Wu Y, Cui X. Three-component synthesis of α-indole-β-sulfonyl tetrahydrofurans under metal-free conditions. NEW J CHEM 2022. [DOI: 10.1039/d1nj05749a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient multi-component reaction has been developed for the synthesis of 2,3-disubstituted tetrahydrofurans in a “one pot” manner, starting from readily available 2-arylindoles, arylsulfonyl azides, and tetrahydrofuran under simple and easily operated reaction conditions.
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Affiliation(s)
- Haopeng Xu
- College of Chemistry and Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Chao Pi
- College of Chemistry and Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Yangjie Wu
- College of Chemistry and Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Xiuling Cui
- College of Chemistry and Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, People's Republic of China
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Mi X, Pi C, Feng W, Cui X. Recent progress in the application of iodonium ylides in organic synthesis. Org Chem Front 2022. [DOI: 10.1039/d2qo01332k] [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: 11/13/2022]
Abstract
This review summarizes the recent advances in the synthetic application of iodonium ylides covering 2017 to 2022.
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Affiliation(s)
- Xia Mi
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
| | - Chao Pi
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Weisheng Feng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
| | - Xiuling Cui
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
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Chen Z, Zheng X, Zhou SF, Cui X. Visible Light-Promoted Selenylative Spirocyclization of Biaryl Ynones toward the Formation of Selenated Spiro[5.5]trienones. Org Biomol Chem 2022; 20:5779-5783. [DOI: 10.1039/d2ob01006b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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 visible-light induced dearomative cascade cyclization of biaryl ynones with diselenides under photocatalyst and external additive-free conditions has been explored, giving a series of selenated spiro[5.5]trienones in moderate to good...
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Chen Z, Zhang H, Zhou SF, Cui X. Photoredox-catalyzed synthesis of sulfonated oxazolines from N-allylamides through the insertion of sulfur dioxide. Org Chem Front 2022. [DOI: 10.1039/d1qo01540k] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Photoredox-catalyzed generation of sulfonated oxazolines starting from N-allylamides, DABCO·(SO2)2, and aryldiazonium salts has been developed and a range of sulfonated oxazolines were obtained in moderate to good yields.
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Affiliation(s)
- Zhichao Chen
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Hong Zhang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Shu-Feng Zhou
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
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Zhao X, Yue X, Han Z, Feng Y, Gao T, Li S, Cui X. Rhodium-Catalysed Regioselective [4+2]-type Annulation of 1-H-Indazoles with Propargyl Alcohols: A direct entry to 6-alkenylindazolo[3,2-a]isoquinolines. Org Chem Front 2022. [DOI: 10.1039/d2qo01258h] [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
An efficient method for the synthesis of 6-vinylindazolo[3,2-a]isoquinolines via rhodium(III)-catalysed C-H bond activation/subsequent [4+2] cyclization starting from easily available 3-aryl-1-H-indazoles and propargyl alcohols has been developed. A series of vinyl-annulated...
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Shen J, Li S, Yao Z, Lin S, Cui X. Base-promoted Cyclization Reaction of o-Isothiocyanato Arylacetylenes and Aroylacetonitriles: Easy Access to Benzo[d][1,3]thiazines. Org Biomol Chem 2022; 20:7236-7240. [DOI: 10.1039/d2ob01424f] [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 green and efficient synthesis of benzo[d][1,3]thiazines through base-promoted cyclization reaction of o-isothiocyanato arylacetylenes with aroylacetonitriles has been developed. This protocol displays high step economy and efficiency, and tolerates various...
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Affiliation(s)
- Lang Huang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Zhenyu Yao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Guanghua Huang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Yaqi Ao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Bin Zhu
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Sanshu Li
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
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Zhu B, Yao Z, Huang L, Cui X. Easy synthesis of imidazo[1,5- a]indol-3-ones through Rh(III)-catalyzed C-H allenylation/annulation. Chem Commun (Camb) 2021; 57:12012-12015. [PMID: 34710203 DOI: 10.1039/d1cc04359e] [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: 12/16/2022]
Abstract
A highly efficient and regioselective synthesis of imidazo[1,5-a]indol-3-ones has been developed via a sequential C-H allenylation/annulation starting from easily available N-methoxycarbamoyl indoles and propargyl alcohols, in which the propargyl alcohols served as a C1 synthon. This strategy displays excellent regioselectivity, high atom economy and tolerates a broad substrate scope.
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Affiliation(s)
- Bin Zhu
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
| | - Zhenyu Yao
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
| | - Lang Huang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China.
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Zhao S, Cui X, Pang Y, Zhang X, You X, Yang Y, Lei Y. Cloning, genome structure and expression analysis of MHC class I gene in Korean quail. Br Poult Sci 2021; 63:291-297. [PMID: 34649479 DOI: 10.1080/00071668.2021.1991885] [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] [Indexed: 10/20/2022]
Abstract
1. The major histocompatibility complex (MHC) is a highly polymorphic region of the genome essential to immune responses and animal health. However, avian MHC genetic structure is different from that of mammals. In this study, the structure and expression of Korean quail MHC class I gene was analysed.2. The quail MHC gene consisted of eight exons and seven introns. The open reading frame of the cDNA was 353 amino acids, and the molecular weight was about 38.91 kDa. Exons 1 and 2 coded for leading peptides and alpha 1 regions, respectively. Exons 3 and 4 encoded alpha 2 and alpha 3 regions. Exons 5 to 8 coded for connecting peptides and transmembrane regions/cytoplasmic regions (TM/CY). The Korean quail MHC class I amino acid sequence shared 87% to 99% homology with Japanese quail and 71% to 75% with chicken. The amino acid shared 40% and 43% homology with humans and mice, respectively.3. Real-time quantitative PCR showed that MHC-I was highly expressed in immune tissues such as the bursa of Fabricius. Moreover, the constructed evolutionary tree was consistent with accepted evolutionary pathways.4. MHC-I is closely related to the host's immune system, and these findings may help to better understand the role of Korean quail MHC-I in the immune system.
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Affiliation(s)
- S Zhao
- Luoyang Key Laboratory of Animal Genetics and Breeding, College of Animal Science, Henan University of Science and Technology, Luoyang, P. R. China
| | - X Cui
- Luoyang Key Laboratory of Animal Genetics and Breeding, College of Animal Science, Henan University of Science and Technology, Luoyang, P. R. China
| | - Y Pang
- Luoyang Key Laboratory of Animal Genetics and Breeding, College of Animal Science, Henan University of Science and Technology, Luoyang, P. R. China
| | - X Zhang
- Luoyang Key Laboratory of Animal Genetics and Breeding, College of Animal Science, Henan University of Science and Technology, Luoyang, P. R. China
| | - X You
- Luoyang Key Laboratory of Animal Genetics and Breeding, College of Animal Science, Henan University of Science and Technology, Luoyang, P. R. China
| | - Y Yang
- Luoyang Key Laboratory of Animal Genetics and Breeding, College of Animal Science, Henan University of Science and Technology, Luoyang, P. R. China
| | - Y Lei
- Luoyang Key Laboratory of Animal Genetics and Breeding, College of Animal Science, Henan University of Science and Technology, Luoyang, P. R. China
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Chen Z, Zhang H, Zhou SF, Cui X. Metal-Free Sulfonylative Spirocyclization of Indolyl-ynones via Insertion of Sulfur Dioxide: Access to Sulfonated Spiro[cyclopentenone-1,3'-indoles]. Org Lett 2021; 23:7992-7995. [PMID: 34581591 DOI: 10.1021/acs.orglett.1c02999] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A three-component sulfonylative spirocyclization of indolyl ynones with aryldiazonium salts and a sulfur dioxide surrogate of DABCO·(SO2)2 has been developed, providing a range of sulfonated spiro[cyclopentenone-1,3'-indoles] in moderate to good yields. This transformation was initiated by an in situ generated arylsulfonyl radical and proceeded efficiently under metal-free conditions, involving a radical-induced dearomative cascade cyclization accompanied by the insertion of sulfur dioxide. This protocol provides an efficient and convenient method to access sulfonated spiroindolenines, and tolerant various functional groups.
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Affiliation(s)
- Zhichao Chen
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Hong Zhang
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Shu-Feng Zhou
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
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Ren J, Pi C, Cui X, Wu Y. Rhodium(III)-Catalyzed [4 + 2] Annulation of N-Arylbenzamidines with Propargyl Alcohols: Highly Regioselective Synthesis of 1-Aminoisoquinolines Controlled by Noncovalent Interaction. Org Lett 2021; 23:6628-6632. [PMID: 34474576 DOI: 10.1021/acs.orglett.1c02077] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly regioselective synthesis of 1-aminoisoquinolines has been explored via rhodium(III)-catalyzed C-H bond activation/annulation reactions of propargyl alcohols with N-arylbenzamidines. The imidamide was used as the directing group and the nitrogen source of the heterocycle and for regulating the regioselective migratory insertion of propargyl alcohol through a hydrogen bond. In this transformation, a specific isomer was obtained that would provide a new strategy for the synthesis of 1-aminoisoquinolines with biological activity.
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Affiliation(s)
- Jie Ren
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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Cui X, Weng Y, Feng J, Jin Y, Xu Z, Wang P, Ruan P, Luo J, Luo P, Peng M. 64P Prognostic value of tertiary lymphoid structures in cancer: A systematic review and meta-analysis. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Qin Y, Zhang S, Cui S, Shen X, Wang J, Cui X, Zuo M, Gao Z, Zhang J, Yang J, Zhu H, Chang B. High urinary excretion rate of glucose attenuates serum uric acid level in type 2 diabetes with normal renal function. J Endocrinol Invest 2021; 44:1981-1988. [PMID: 33515212 PMCID: PMC8357730 DOI: 10.1007/s40618-021-01513-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/18/2021] [Indexed: 12/15/2022]
Abstract
AIMS/INTRODUCTION The relationship between urinary excretion rate of glucose (UEGL) and uric acid (UA) metabolism in adults with type 2 diabetes (T2D) remains unclear to date. This study aimed to investigate the relationships of UEGL with serum UA (SUA), urinary excretion rate of uric acid (UEUA), and renal clearance of uric acid (CLUA) in adults with T2D. We hypothesised that high UEGL increases UA excretion, which in turn leads to lower SUA. MATERIALS AND METHODS This was a cross-sectional study of 635 inpatients with T2D recruited between 2018 and 2019. The relationships of UEGL with UEUA, CLUA, and hyperuricaemia were assessed using analysis of covariance and multivariate regression analysis. RESULTS Patients in the higher quartile of UEGL tended to have lower SUA levels than those in the lower quartile. In contrast, patients in the higher quartile of UEGL tended to have higher CLUA (p for trend < 0.0001), and a similar trend was observed for UEUA. In adjusted multivariable linear regression model, UEGL was negatively correlated with SUA (β = - 0.023, 95% CI - 0.034 to - 0.013, p < 0.0001). However, positive correlations of UEGL with UEUA (β = 0.046, 95% CI 0.018-0.074, p = 0.001) and CLUA (β = 0.063, 95% CI 0.042-0.085, p < 0.0001) were found. Furthermore, consistent significant inverse associations were observed between quartiles of UEGL and hyperuricaemia in the adjusted multivariate logistic regression model. CONCLUSIONS A high UEGL level was positively correlated with UEUA and CLUA. Moreover, it was inversely associated with SUA level, and a consistently increased UEGL level reduced the risk of hyperuricaemia in patients with T2D.
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Affiliation(s)
- Y Qin
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
- Department of Endocrinology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - S Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - S Cui
- Department of Endocrinology, Tianjin First Central Hospital, The First Center Clinical College of Tianjin Medical University, Tianjin, China
| | - X Shen
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - J Wang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - X Cui
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - M Zuo
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Z Gao
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - J Zhang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - J Yang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - H Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - B Chang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China.
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Liang PF, Zhang PH, Zhang MH, Zeng JZ, Zhou J, Huang MT, Cui X, Guo L, Yan ZX, Ran YQ, Zhou ST, He ZY, Huang XY. [Repair methods and clinical effects of full-thickness burn wounds deep to tendon or even bone in fingers]. Zhonghua Shao Shang Za Zhi 2021; 37:614-621. [PMID: 34192850 DOI: 10.3760/cma.j.cn501120-20210114-00020] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the repair methods and clinical effects of full-thickness burn wounds deep to tendon or even bone in fingers. Methods: A retrospective non-randomized controlled trial was conducted on the 98 patients with full-thickness finger burns deep to tendon or even bone who met the inclusion criteria and were hospitalized in Xiangya Hospital of Central South University from January 2010 to December 2019. Among the 98 patients, there were 81 males and 17 females, aged from 1 to 72 years, with 160 fingers involved. The wound area of each of affected fingers ranged from 2.0 cm×1.5 cm to 12.0 cm×3.5 cm, and the maximum wound area after merging the affected fingers was 12.0 cm×10.0 cm. For adult hands with multiple full-thickness burn wounds deep to tendon or even bone in multiple fingers or children with full-thickness finger burns deep to tendon or even bone, pedicled abdominal flaps were selected. For adults with single or two fingers with full-thickness burns deep to tendon or even bone, the pedicled internal hand flaps and free tissue flaps were selected. The free tissue flap repair requires good vascular conditions in the recipient area with arteries and veins available for anastomosis. For thumb nail burns deep to tendon or even bone or partial absence of the thumb after burns, the thumbs were reconstructed with the first toenail flap or dorsal foot flap with the second toe. In this study, 45 pedicled abdominal flaps were used to repair the wounds in 91 fingers, 37 pedicled internal hand flaps were used to repair the wounds in 37 fingers, 26 free tissue flaps were used to repair the wounds in 28 fingers, 3 first toenail flaps were used to reconstruct 3 patients' thumb nails and to repair hand wounds, and 1 dorsal foot flap with the second toe was used to reconstruct 1 patient's thumb and to repair hand and wrist wounds. The tissue flap area was from 2.0 cm×1.5 cm to 20.0 cm×10.0 cm. The wound in the donor site was repaired by direct suture or full-thickness skin grafting from the medial upper arm of the affected limb or split-thickness skin grafting from the outer thigh. The postoperative survival of the tissue flap, postoperative complications, and appearance and function of the flap donor site were observed. For the patients who were followed up, their finger functions were evaluated at the last follow-up using the trial criteria for replantation function evaluation of the amputated finger issued by the Hand Surgery Society of the Chinese Medical Association, and the satisfaction of the patients was investigated using the Efficacy Satisfaction Scale. Data were statistically analyzed with Kruskal-Wallis H test and Nemenyi test. Results: Of the 112 tissue flaps, 104 tissue flaps survived completely and had good blood circulation; 1 pedicled thumb dorsal ulnar reverse island flap, 1 pedicled finger artery cutaneous branch reverse island flap, and 1 free grafted anterolateral thigh perforator flap were slightly necrotic at the end, which were repaired with outer thigh split-thickness skin graft after dressing change and granulation tissue growth; 2 free grafted tarsal external artery flaps and 1 pedicled thumb dorsal ulnar reverse island flap suffered from postoperative venous return obstruction, which survived after partial suture removal and heparin saline cleansing of the wound; 1 pedicled modified dorsal metacarpal artery retrograde island flap and 1 free grafted peroneal artery perforator flap were necrotic, which were repaired by a pedicled abdominal flap and a lateral upper arm flap free transplantation respectively in stage Ⅱ. After transplantation, the tissue flaps had good shape, soft texture, and good elasticity, without bloating. There was no functional disorder in the flap donor site, and only slight scar remained. A total of 117 fingers of the 72 patients received 3-24 months of outpatient or telephone follow-up. At the last follow-up, the excellent and good rates of function evaluation of fingers repaired with pedicled abdominal flap, pedicled internal hand flap, and free tissue flap were respectively 77.3% (51/66), 96.3% (26/27), and 95.8% (23/24). The function of fingers repaired with free tissue flap and pedicled internal hand flap was significantly better than that with pedicled abdominal flap (P<0.01). The satisfaction of patients with fingers repaired by free tissue flaps was significantly higher than that by pedicled abdominal flap (P<0.05). Conclusions: According to the specific situation of full-thickness burn wounds deep to tendon or even bone in fingers, the pedicled abdominal flap is used to repair the multiple full-thickness burn wounds deep to tendon or even bone in multiple fingers of adult or the full-thickness burn wounds deep to tendon or even bone in fingers of children, the pedicled internal hand flap or free tissue flap is used to repair the full-thickness burn wounds deep to tendon or even bone in single or two fingers of adult patients, and the first toenail flap or the dorsal foot flap with the second toe is used to reconstruct the thumbs with full-thickness burn deep to tendon or even bone, with high postoperative tissue flap survival rate and few complications. The functional recovery of the affected finger is better after repair with free tissue flap and pedicled internal hand flap, and the patients' satisfaction is the highest after free tissue flap repair.
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Affiliation(s)
- P F Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - P H Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - M H Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - J Z Zeng
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - J Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - M T Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Cui
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Guo
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Z X Yan
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Y Q Ran
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - S T Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Z Y He
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Y Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
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Ma L, Wu B, Jin X, Sun Y, Kong X, Ji Z, Chen R, Cui X, Shi H, Jiang L. POS0817 A NOVEL MODEL TO ASSESS DISEASE ACTIVITY IN TAKAYASU ARTERITIS BASED ON 18F-FDG-PET/CT: A CHINESE COHORT STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3739] [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: 11/04/2022]
Abstract
Background:Takayasu arteritis (TA) is a condition characterized by major large-vessel vasculitis (LVV), and is most commonly found in young women (age <40 years) of East Asia countries. 18F-FDG-PET/CT has been widely used in the diagnosis and follow-up of cancers to gather functional information based on metabolic activity. In the present study, we evaluated the value of different parameters in 18F-FDG-PET/CT for assessing active TA disease, and we establish a simple, quantifiable, and effective disease activity evaluation model based on 18F-FDG-PET/CT. A comparison in the ability to identify active disease was performed between the established Kerr score and the new 18F-FDG-PET/CT was also performed.Objectives:To investigate the utility of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) in assessing disease activity in TA.Methods:Ninety-one patients with TA, were recruited from a Chinese cohort from October 2017 to January 2019. Clinical data, acute-phase reactants (APRs), and 18F-FDG-PET/CT findings were simultaneously recorded. The Physician Global Assessment was used as the gold standard to assess TA disease activity. The value of using 18F-FDG-PET/CT to identify active disease was evaluated, using erythrocyte sedimentation rate (ESR) as a reference. Disease activity assessment models were constructed and concordance index (C-index), net reclassification index (NRI), and integrated discrimination index (IDI) were evaluated to compare the benefits of the new modes with ESR and Kerr score.Results:In total, 64 (70.3%) cases showed active disease. Higher levels of ESR and CRP, and lower interleukin (IL)-2R levels, were observed in active cases. 18F-FDG-PET/CT parameters, including SUVmean, SUVratio1, SUVratio2, sum of SUVmean, and sum of SUVmax, were significantly higher in active disease groups. The C index threshold of ESR to indicate active disease was 0.78 (95% CI: 0.69-0.88). The new activity assessment model combining ESR, sum of SUVmean, and IL-2R showed significant improvement in C index over the ESR method (0.96 vs. 0.78, P < 0.01; NRI 1.63, P < 0.01; and IDI 0.48, P < 0.01). The new model also demonstrated modest superiority to Kerr score assessment (0.96 vs. 0.87, P = 0.03; NRI 1.19, P < 0.01; and IDI 0.33 P < 0.01).Conclusion:A novel 18F-FDG-PET/CT-based method that involves combining the sum of SUVmean with ESR score and IL-2R levels demonstrated superiority in identifying active TA compared to conventional methods.References:[1]Kerr GS, Hallahan CW, Giordano J, Leavitt RY, Fauci AS, Rottem M, et al. Takayasu arteritis. Ann Intern Med 1994;120:919-29.[2]Hoffman GS, Ahmed AE. Surrogate markers of disease activity in patients with Takayasu arteritis. A preliminary report from The International Network for the Study of the Systemic Vasculitides (INSSYS). Int J Cardiol 1998;66 Suppl 1:S191-4; discussion S195.[3]Misra R, Danda D, Rajappa SM, Ghosh A, Gupta R, Mahendranath KM, et al. Development and initial validation of the Indian Takayasu Clinical Activity Score (ITAS2010). Rheumatology (Oxford) 2013;52:1795-801.[4]Bardi M, Diamantopoulos AP. EULAR recommendations for the use of imaging in large vessel vasculitis in clinical practice summary. Radiol Med 2019;124:965-972.[5]Spick C, Herrmann K, Czernin J. 18F-FDG PET/CT and PET/MRI Perform Equally Well in Cancer: Evidence from Studies on More Than 2,300 Patients. J Nucl Med 2016;57:420-30.Disclosure of Interests:None declared
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