1
|
Diao L, Wang C, You R, Leng B, Yu Z, Xu Q, Cheng Y, Yin G. Hepatic arterial infusion chemotherapy combined with lenvatinib and PD-1 inhibitors versus lenvatinib and PD-1 inhibitors for HCC refractory to TACE. J Gastroenterol Hepatol 2024; 39:746-753. [PMID: 38240156 DOI: 10.1111/jgh.16463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/21/2023] [Accepted: 12/08/2023] [Indexed: 04/04/2024]
Abstract
BACKGROUND AND AIM The study aims to investigate the efficacy and safety of hepatic arterial infusion chemotherapy (HAIC) combined with lenvatinib and immune checkpoint inhibitors (ICIs) versus lenvatinib and ICIs for hepatocellular carcinoma (HCC) with transarterial chemoembolization (TACE) refractoriness. METHODS Patients with intermediate or advanced TACE-refractory HCC who received lenvatinib and ICIs with or without HAIC between 2020 and 2022 were retrospectively reviewed. The tumor response, overall survival (OS), progression-free survival (PFS), and treatment-related adverse events (TRAEs) were evaluated and compared between the two groups. Factors affecting OS and PFS were identified with univariate and multivariate Cox regression analyses. RESULTS A total of 121 patients were enrolled, with 58 patients assigned to the HAIC-Len-ICI group and 63 patients assigned to the Len-ICI group. A higher objective response rate and disease control rate were found in the HAIC-Len-ICI group than in the Len-ICI group (48.30% vs 23.80%, P = 0.005; 87.90% vs 69.80%, P = 0.02, respectively). The median OS was 24.0 months in the HAIC-Len-ICI group and 13.0 months in the Len-ICI group (P = 0.001). The median PFS was 13.0 months in the HAIC-Len-ICI group and 7.2 months in the Len-ICI group (P < 0.001). Multivariable analyses suggested that the presence of cirrhosis, Child-Pugh B stage, and HAIC-Len-ICI therapy option were prognostic factors for OS and PFS. The incidences of any grade and grade 3/4 TRAEs were both comparable between the two groups. CONCLUSIONS HAIC combined with lenvatinib and ICIs yielded better OS, PFS, ORR, and DCR than lenvatinib-ICI therapy in patients with HCC refractory to TACE, with manageable adverse events.
Collapse
Affiliation(s)
- Lingfeng Diao
- Department of Interventional Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Chendong Wang
- Department of Interventional Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Ran You
- Department of Interventional Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Bin Leng
- Department of Interventional Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Zeyu Yu
- Department of Interventional Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Qingyu Xu
- Department of Interventional Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Yuan Cheng
- Department of Oncology, Bayi Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Guowen Yin
- Department of Interventional Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
2
|
Zheng Y, Feng M, Li X, Huang X, Chen G, Bai W, Xu X, Li J, Li X, Leng B, Sun H, He C, Chen Y. Phenotypic Variation Analysis and Excellent Clone Selection of Alnus cremastogyne from Different Provenances. Plants (Basel) 2023; 12:3259. [PMID: 37765423 PMCID: PMC10535346 DOI: 10.3390/plants12183259] [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] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/30/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
Alnus cremastogyne is a rapidly growing broad-leaved tree species that is widely distributed in southwest China. It has a significant economic and ecological value. However, with the expansion of the planting area, the influence of phenotypic variation and differentiation on Alnus cremastogyne has increased, resulting in a continuous decline in its genetic quality. Therefore, it is crucial to investigate the phenotypic variation of Alnus cremastogyne and select excellent breeding materials for genetic improvement. Herein, four growth-related phenotypic traits (diameter at breast height, the height of trees, volume, height under the branches) and twelve reproductive-related phenotypic traits (fresh weight of single cone, dry weight of single cone, seed weight per plant, thousand kernel weight, cone length, cone width, cone length × cone width, fruit shape index, seed rate, germination rate, germination potential, germination index) of 40 clones from four provenances were measured and analyzed. The phenotypic variation was comprehensively evaluated by correlation analysis, principal component analysis and cluster analysis, and excellent clones were selected as breeding materials. The results revealed that there were abundant phenotypic traits variations among and within provenances. Most of the phenotypic traits were highly significant differences (p < 0.01) among provenances. The phenotypic variation among provenances (26.36%) was greater than that of within provenances clones (24.80%). The average phenotypic differentiation coefficient was accounted for 52.61% among provenances, indicating that the phenotypic variation mainly came from among provenances. The coefficient of variation ranged from 9.41% (fruit shape index) to 97.19% (seed weight per plant), and the repeatability ranged from 0.36 (volume) to 0.77 (cone width). Correlation analysis revealed a significantly positive correlation among most phenotypic traits. In principal component analysis, the cumulative contribution rate of the first three principal components was 79.18%, representing the main information on the measured phenotypic traits. The cluster analysis revealed four groups for the 40 clones. Group I and group II exhibited better performance phenotypic traits as compared with group III and group IV. In addition, the four groups are not clearly clustered following the distance from the provenance. Employing the multi-trait comprehensive evaluation method, 12 excellent clones were selected, and the average genetic gain for each phenotypic trait ranged from 4.78% (diameter at breast height) to 32.05% (dry weight of single cone). These selected excellent clones can serve as candidate materials for the improvement and transformation of Alnus cremastogyne seed orchards. In addition, this study can also provide a theoretical foundation for the genetic improvement, breeding, and clone selection of Alnus cremastogyne.
Collapse
Affiliation(s)
- Yue Zheng
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Maosong Feng
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Xue Li
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Xingyan Huang
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Gang Chen
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Wenyu Bai
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Xueju Xu
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Jiayi Li
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Xiaohong Li
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Bin Leng
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Hao Sun
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Chunyan He
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| | - Yunjie Chen
- College of Forest, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (X.L.); (X.H.); (G.C.); (W.B.); (X.X.); (J.L.); (X.L.); (B.L.); (H.S.); (C.H.); (Y.C.)
| |
Collapse
|
3
|
Leng B, Deng L, Tan J, Lee WT, Cao CR, Wang ZP, Huang DJ, Nie XW, Bian JS. Targeting the Na +/K + ATPase DR-region with DR-Ab improves doxorubicin-induced cardiotoxicity. Free Radic Biol Med 2023; 204:38-53. [PMID: 37100355 DOI: 10.1016/j.freeradbiomed.2023.04.008] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/04/2023] [Accepted: 04/18/2023] [Indexed: 04/28/2023]
Abstract
Doxorubicin (DOX) is a potent chemotherapeutic drug for various cancers. Yet, the cardiotoxic side effects limit its application in clinical uses, in which ferroptosis serves as a crucial pathological mechanism in DOX-induced cardiotoxicity (DIC). A reduction of Na+/K + ATPase (NKA) activity is closely associated with DIC progression. However, whether abnormal NKA function was involved in DOX-induced cardiotoxicity and ferroptosis remains unknown. Here, we aim to decipher the cellular and molecular mechanisms of dysfunctional NKA in DOX-induced ferroptosis and investigate NKA as a potential therapeutic target for DIC. A decrease activity of NKA further aggravated DOX-triggered cardiac dysfunction and ferroptosis in NKAα1 haploinsufficiency mice. In contrast, antibodies against the DR-region of NKAα-subunit (DR-Ab) attenuated the cardiac dysfunction and ferroptosis induced by DOX. Mechanistically, NKAα1 interacted with SLC7A11 to form a novel protein complex, which was directly implicated in the disease progression of DIC. Furthermore, the therapeutic effect of DR-Ab on DIC was mediated by reducing ferroptosis by promoting the association of NKAα1/SLC7A11 complex and maintaining the stability of SLC7A11 on the cell surface. These results indicate that antibodies targeting the DR-region of NKA may serve as a novel therapeutic strategy to alleviate DOX-induced cardiotoxicity.
Collapse
Affiliation(s)
- Bin Leng
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore, 117542, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou, 215123, Jiangsu, China
| | - Lin Deng
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Jianxin Tan
- Lung Transplant Group, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China
| | - Wei-Thye Lee
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore
| | - Cheng-Rui Cao
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Zi-Ping Wang
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - De-Jian Huang
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore, 117542, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou, 215123, Jiangsu, China.
| | - Xiao-Wei Nie
- Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518055, China.
| | - Jin-Song Bian
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China; National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou, 215123, Jiangsu, China.
| |
Collapse
|
4
|
Zhao J, Liu H, Xia M, Chen Q, Wan L, Leng B, Tang C, Chen G, Liu Y, Zhang L, Liu H. Network Pharmacology and Experimental Validation to Explore That Celastrol Targeting PTEN is the Potential Mechanism of Tripterygium wilfordii (Lév.) Hutch Against IgA Nephropathy. Drug Des Devel Ther 2023; 17:887-900. [PMID: 36992900 PMCID: PMC10042171 DOI: 10.2147/dddt.s402503] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/15/2023] [Indexed: 03/31/2023] Open
Abstract
Purpose Accumulating clinical evidence showed that Tripterygium hypoglaucum (Lév.) Hutch (THH) is effective against IgA nephropathy (IgAN), but the mechanism is still unclear. This study is to evaluate the renal protective effect and molecular mechanism of THH against IgAN via network pharmacology, molecular docking strategy and experimental validation. Methods Several databases were used for obtaining the active ingredients of THH, the corresponding targets, as well as the IgAN-related genes. The critical active ingredients, functional pathways, and potential for the combination of the hub genes and their corresponding active components were determined through bioinformatics analysis and molecular docking. The IgAN mouse model was treated with celastrol (1 mg/kg/d) for 21 days, and the aggregated IgA1-induced human mesangial cell (HMC) was treated with various concentrations of celastrol (25, 50 or 75 nM) for 48 h. The immunohistochemistry and Western blot techniques were applied to evaluate the protein expression of the predicted target. The cell counting kit 8 (CCK8) was used to detect HMC proliferation. Results A total of 17 active ingredients from THH were screened, covering 165 IgAN-related targets. The PPI network identified ten hub targets, including PTEN. The binding affinity between the celastrol and PTEN was the highest (-8.69 kJ/mol). The immunohistochemistry showed that celastrol promoted the expression of PTEN in the glomerulus of IgAN mice. Furthermore, the Western blot techniques showed that celastrol significantly elevated the expression of PTEN and inhibited PCNA and Cyclin D1 in vitro and in vivo. The CCK8 assay determined that celastrol decreased HMC proliferation in a concentration-dependent manner. Conclusion This study suggests that activating PTEN by celastrol may play a pivotal role in THH alleviating IgAN renal injury.
Collapse
Affiliation(s)
- Juanyong Zhao
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Haiyang Liu
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Ming Xia
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Qian Chen
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Lili Wan
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Bin Leng
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Chengyuan Tang
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Guochun Chen
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Yu Liu
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Lei Zhang
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Hong Liu
- Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China
- Correspondence: Hong Liu; Lei Zhang, Hunan Key Laboratory of Kidney Disease and Blood Purification, Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of China, Tel +86-13973116951; +86-18673174522, Email ;
| |
Collapse
|
5
|
Schoch S, Castro-Meija J, Krych L, Kot W, Leng B, Kohler M, Huber R, Rogler G, Biedermann L, Walser JC, Nielsen D, Kurth S. Interactions between sleep and gut bacteria in healthy developing infants. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.534] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
6
|
Deng L, Leng B, Nie X. The cannabis paradox: contrasting role for marijuana in cardiovascular disease. Signal Transduct Target Ther 2022; 7:309. [PMID: 36064830 PMCID: PMC9443640 DOI: 10.1038/s41392-022-01160-2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/10/2022] [Accepted: 08/07/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
- Lin Deng
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Bin Leng
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore, 117542, Singapore
| | - Xiaowei Nie
- Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518055, China.
| |
Collapse
|
7
|
Schoch SF, Castro-Mejía JL, Krych L, Leng B, Kot W, Kohler M, Huber R, Rogler G, Biedermann L, Walser JC, Nielsen DS, Kurth S. From Alpha Diversity to Zzz: Interactions among sleep, the brain, and gut microbiota in the first year of life. Prog Neurobiol 2021; 209:102208. [PMID: 34923049 DOI: 10.1016/j.pneurobio.2021.102208] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/04/2021] [Accepted: 12/14/2021] [Indexed: 12/13/2022]
Abstract
Sleep disorders have been linked to alterations of gut microbiota composition in adult humans and animal models, but it is unclear how this link develops. With longitudinal assessments in 162 healthy infants, we present a so far unrecognized sleep-brain-gut interrelationship. First, we report a link between sleep habits and gut microbiota: daytime sleep is associated with bacterial diversity, and nighttime sleep fragmentation and variability link with bacterial maturity and enterotype. Second, we demonstrate a sleep-brain-gut link: bacterial diversity and enterotype are associated with sleep neurophysiology. Third, we show that the sleep-brain-gut link is relevant in development: sleep habits and bacterial markers predict behavioral-developmental outcomes. Our results demonstrate the dynamic interplay between sleep, gut microbiota, and the maturation of brain and behavior during infancy, which aligns with the lately emerging concept of a sleep-brain-gut axis. Importantly, sleep and gut microbiota represent promising health targets since both can be modified non-invasively. As many adult diseases root in early childhood, leveraging protective factors of adequate sleep and age-appropriate gut microbiota in infancy could constitute a health promoting factor across the entire human lifespan.
Collapse
Affiliation(s)
- S F Schoch
- Department of PulmonOlogy, University Hospital Zurich, Zurich, Switzerland; Center of Competence Sleep & Health Zurich, University of Zurich, Zurich, Switzerland
| | | | - L Krych
- Department of Food Science, University of Copenhagen, Denmark
| | - B Leng
- Department of Food Science, University of Copenhagen, Denmark
| | - W Kot
- Department of Plant and Environmental Sciences, University of Copenhagen, Denmark
| | - M Kohler
- Department of PulmonOlogy, University Hospital Zurich, Zurich, Switzerland; Center of Competence Sleep & Health Zurich, University of Zurich, Zurich, Switzerland
| | - R Huber
- Center of Competence Sleep & Health Zurich, University of Zurich, Zurich, Switzerland; Child Development Center, University Children's Hospital Zurich, Zurich, Switzerland; Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital, University of Zurich, Switzerland
| | - G Rogler
- Department for Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - L Biedermann
- Department for Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - J C Walser
- Genetic Diversity Center, ETH Zurich, Zurich, Switzerland
| | - D S Nielsen
- Department of Food Science, University of Copenhagen, Denmark
| | - S Kurth
- Department of PulmonOlogy, University Hospital Zurich, Zurich, Switzerland; Center of Competence Sleep & Health Zurich, University of Zurich, Zurich, Switzerland; Department of Psychology, University of Fribourg, Fribourg, Switzerland.
| |
Collapse
|
8
|
Wang X, Cao Y, Jing L, Chen S, Leng B, Yang X, Wu Z, Bian J, Banjerdpongchai R, Poofery J, Huang D. Three-Dimensional RAW264.7 Cell Model on Electrohydrodynamic Printed Poly(ε-Caprolactone) Scaffolds for In Vitro Study of Anti-Inflammatory Compounds. ACS Appl Bio Mater 2021; 4:7967-7978. [PMID: 35006778 DOI: 10.1021/acsabm.1c00889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inflammation plays an essential role in the human immune system, and anti-inflammatory compounds are important to promote health. However, the in vitro screening of these compounds is largely dependent on flat biology. Herein, we report our efforts in establishing a 3D inflammation murine macrophage model. Murine macrophage RAW 264.7 cells were cultured on poly(ε-caprolactone) (PCL) scaffolds fabricated through an electrohydrodynamic jetting 3D printer and their behavior were examined. Cells on PCL scaffolds showed a 3D shape and morphology with multilayers and a lower proliferation rate. Moreover, macrophages were not activated by scaffold material PCL and 3D microenvironment. The 3D cells showed greater sensitivity to lipopolysaccharide stimulation with higher production activity of nitric oxide (NO), nitric oxide synthases (iNOS), and cyclooxygenase-2 (COX-2). Additionally, the 3D macrophage model showed lower drug sensitivity to commercial anti-inflammatory drugs including aspirin, ibuprofen, and dexamethasone, and natural flavones apigenin and luteolin with higher IC50 for NO production and lower iNOS and COX-2 inhibition efficacy. Overall, the 3D macrophage model showed promise for higher accurate screening of anti-inflammatory compounds. We developed, for the first time, a 3D macrophage model based on a 3D-printed PCL scaffold that provides an extracellular matrix environment for cells to grow in the 3D dimension. 3D-grown RAW 264.7 cells showed different sensitivities and responses to anti-inflammatory compounds from its 2D model. The 3D cells have lower sensitivity to both commercial and natural anti-inflammatory compounds. Consequently, our 3D macrophage model could be applied to screen anti-inflammatory compounds more accurately and thus holds great potential in next-generation drug screening applications.
Collapse
Affiliation(s)
- Xiang Wang
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore
| | - Yujia Cao
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore
| | - Linzhi Jing
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou 215123, Jiangsu, China
| | - Siyu Chen
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore
| | - Bin Leng
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore.,National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou 215123, Jiangsu, China
| | - Xin Yang
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore
| | - Zhiyuan Wu
- Department of, Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Jinsong Bian
- Department of, Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore.,National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou 215123, Jiangsu, China.,Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
| | - Ratana Banjerdpongchai
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Juthathip Poofery
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Dejian Huang
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore.,National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou 215123, Jiangsu, China
| |
Collapse
|
9
|
Wu WT, Zhou WZ, Zu QQ, Jia ZY, Leng B, Liu S, Shi HB, Chen Y. Risk factor for vital signs elevation during percutaneous microwave ablation of liver tumor under deep sedation. Jpn J Radiol 2021; 39:1196-1205. [PMID: 34173972 DOI: 10.1007/s11604-021-01158-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 06/14/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE To evaluate the frequency and the degree of vital signs elevation, as well as to elucidate the risk factors for elevation of cardiopulmonary parameters. MATERIALS AND METHODS We retrospectively evaluated the medical records of 101 patients who received microwave ablation (MWA) under deep sedation with propofol. Univariate analysis followed by multivariate linear regression analysis was performed to determine the risk factors associated with the elevation of cardiopulmonary parameters. RESULTS The heart rate (HR), mean blood pressure (BP) and respiratory rate (RR) were elevated in 53.5%, 45.5% and 30.7%. Hyperhemodynamic state (mean BP or HR increased > 30% of the baseline) and high RR (RR > 20 times/min) were detected in 23.8% and 13.9%. Age ≤ 50 years was signifiant for mean BP and HR elevation (p = 0.032; p = 0.027), ablation zone abutting the parietal peritoneum (p = 0.001; p = 0.001; p < 0.001) and the diaphragm (p = 0.001) were risk factors for BP and RR elevation. CONCLUSIONS Elevations in HR and BP are common. Risk factors for vital signs elevation include ablation zone abutting the parietal peritoneum and the diaphragm, as well as young age. These findings help devise strategies for anesthetic management.
Collapse
Affiliation(s)
- Wen-Tao Wu
- Department of Anesthesiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou district, Nanjing, 210029, Jiangsu Province, China
| | - Wei-Zhong Zhou
- Department of Interventional Radiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Qing-Quan Zu
- Department of Interventional Radiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Zhen-Yu Jia
- Department of Interventional Radiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Bin Leng
- Department of Interventional Radiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Sheng Liu
- Department of Interventional Radiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Hai-Bin Shi
- Department of Interventional Radiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Yu Chen
- Department of Anesthesiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), 300 Guangzhou Road, Gulou district, Nanjing, 210029, Jiangsu Province, China.
| |
Collapse
|
10
|
Leng B, Zhou CG, Liu S, Xu ZW, Tian W, Shi HB. Prostatic Artery Embolization to Achieve Freedom from Catheterization in Patients with Acute Urinary Retention Caused by Benign Prostatic Hyperplasia. J Vasc Interv Radiol 2021; 32:1062-1067. [PMID: 33794374 DOI: 10.1016/j.jvir.2021.03.530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 03/12/2021] [Accepted: 03/20/2021] [Indexed: 11/26/2022] Open
Abstract
PURPOSE To determine the ability of prostatic artery embolization (PAE) to achieve freedom from catheterization in patients with acute urinary retention (AUR) caused by benign prostatic hyperplasia (BPH). MATERIALS AND METHODS This retrospective single-center study was performed between June 2014 and March 2019 in patients with lower urinary tract symptoms (LUTS) caused by BPH. PAE was performed in 154 eligible patients, of which 76 suffered from spontaneous AUR and had indwelling catheters placed and kept until the procedure, owing to clinical failure in the removal of the previous intermittent catheter. Each patient was followed for at least 12 months. The first trial without catheter was performed 3 days after PAE. Successful catheter removal within the first 30 days after PAE was considered a clinical success. The rate of patients free from catheterization, LUTS relief, prostate volume, and adverse events was recorded. RESULTS Clinical success was achieved in 70 (92.1%) patients. The rates of freedom from catheterization were 90.3% (65/72), 83.3% (60/72), and 80.6% (58/72) at 3-, 6-, and 12-months follow-up, respectively. The median elapsed time from PAE to catheter removal was 10 days. However, 18 patients needed further interventions. Symptom scores revealed a continuous improvement in urinary symptoms. The mean prostate volume showed a statistically significant decrease at 3 and 12 months compared with its baseline value. No severe adverse events occurred. CONCLUSIONS PAE can achieve freedom from catheterization in patients with AUR caused by BPH.
Collapse
Affiliation(s)
- Bin Leng
- Department of Interventional Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chun-Gao Zhou
- Department of Interventional Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Sheng Liu
- Department of Interventional Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhong-Wei Xu
- Department of Interventional Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wei Tian
- Department of Interventional Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Hai-Bin Shi
- Department of Interventional Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
| |
Collapse
|
11
|
Jing L, Wang X, Leng B, Zhan N, Liu H, Wang S, Lu Y, Sun J, Huang D. Engineered Nanotopography on the Microfibers of 3D-Printed PCL Scaffolds to Modulate Cellular Responses and Establish an In Vitro Tumor Model. ACS Appl Bio Mater 2021; 4:1381-1394. [PMID: 35014489 DOI: 10.1021/acsabm.0c01243] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Scaffold-based three-dimensional (3D) cell culture systems have gained increased interest in cell biology, tissue engineering, and drug screening fields as a replacement of two-dimensional (2D) monolayer cell culture and as a way to provide biomimetic extracellular matrix environments. In this study, microscale fibrous scaffolds were fabricated via electrohydrodynamic printing, and nanoscale features were created on the fiber surface by simply leaching gliadin of poly(ε-caprolactone) (PCL)/gliadin composites in ethanol solution. The microstructure of the printed scaffolds could be precisely controlled by printing parameters, and the surface nanotopography of the printed fiber could be tuned by varying the PCL/gliadin ratios. By seeding mouse embryonic fibroblast (NIH/3T3) cells and human nonsmall cell lung cancer (A549) cells on the printed scaffolds, the cellular responses showed that the fiber nanotopography on printed scaffolds efficiently favored cell adhesion, migration, proliferation, and tissue formation. Quantitative analysis of the transcript expression levels of A549 cells seeded on nanoporous scaffolds further revealed the upregulation of integrin-β1, focal adhesion kinase, Ki-67, E-cadherin, and epithelial growth factor receptors over what was observed in the cells grown on the pure PCL scaffold. Furthermore, a significant difference was found in the relevant biomarker expression on the developed scaffolds compared with that in the monolayer culture, demonstrating the potential of cancer cell-seeded scaffolds as 3D in vitro tumor models for cancer research and drug screening.
Collapse
Affiliation(s)
- Linzhi Jing
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou, Jiangsu 215123, China.,Department of Food Science and Technology, National University of Singapore, 3 Science Drive 2, 117542, Singapore
| | - Xiang Wang
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou, Jiangsu 215123, China
| | - Bin Leng
- Department of Food Science and Technology, National University of Singapore, 3 Science Drive 2, 117542, Singapore
| | - Ningping Zhan
- Department of Food Science and Technology, National University of Singapore, 3 Science Drive 2, 117542, Singapore
| | - Hang Liu
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou, Jiangsu 215123, China.,Department of Food Science and Technology, National University of Singapore, 3 Science Drive 2, 117542, Singapore
| | - Shifei Wang
- Department of Food Science and Technology, National University of Singapore, 3 Science Drive 2, 117542, Singapore
| | - Yuyun Lu
- Department of Food Science and Technology, National University of Singapore, 3 Science Drive 2, 117542, Singapore
| | - Jie Sun
- Department of Mechatronics and Robotics, Xi'an Jiaotong-Liverpool University, 111 Ren'ai Road, Suzhou, Jiangsu 215123, China
| | - Dejian Huang
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou, Jiangsu 215123, China.,Department of Food Science and Technology, National University of Singapore, 3 Science Drive 2, 117542, Singapore
| |
Collapse
|
12
|
Leng B, Hu W. Design and implementation of sawdust dust removal system based on PLC control. 2020 5th International Conference on Mechanical, Control and Computer Engineering (ICMCCE) 2020. [DOI: 10.1109/icmcce51767.2020.00193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
|
13
|
Abstract
Significance: As one-electron reduced molecule of nitric oxide (NO), nitroxyl (HNO) has gained enormous attention because of its novel physiological or pharmacological properties, ranging from cardiovascular protective actions to antitumoricidal effects. Recent Advances: HNO is emerging as a new entity with therapeutic advantages over its redox sibling, NO. The interests in the chemical, pharmacological, and biological characteristics of HNO have broadened our current understanding of its role in physiology and pathophysiology. Critical Issues: In particular, the experimental evidence suggests the therapeutic potential of HNO in tumor pharmacology, such as neuroblastoma, gastrointestinal tumor, ovarian, lung, and breast cancers. Indeed, HNO donors have been demonstrated to attenuate tumor proliferation and angiogenesis. Future Directions: In this review, the generation and detection of HNO are outlined, and the roles of HNO in cancer progression are further discussed. We anticipate that the completion of this review might give novel insights into the roles of HNO in cancer pharmacology and open up a novel field of cancer therapy based on HNO.
Collapse
Affiliation(s)
- Hai-Jian Sun
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Wei-Thye Lee
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Bin Leng
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Zhi-Yuan Wu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yong Yang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Jin-Song Bian
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,National University of Singapore (Suzhou) Research Institute, Suzhou, China
| |
Collapse
|
14
|
Nie Q, Zhu L, Zhang L, Leng B, Wang H. Astragaloside IV protects against hyperglycemia-induced vascular endothelial dysfunction by inhibiting oxidative stress and Calpain-1 activation. Life Sci 2019; 232:116662. [PMID: 31323271 DOI: 10.1016/j.lfs.2019.116662] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 07/15/2019] [Indexed: 12/29/2022]
Abstract
AIMS Vascular endothelial cells act as a selective barrier between circulating blood and vessel wall and play an important role in the occurrence and development of cardiovascular diseases. Astragaloside IV (As-IV) has a protective effect on vascular endothelial cells, but its underlying mechanism remains unclear. This study is aimed at investigating the effect of As-IV on endothelial dysfunction (ED). METHODS Male Sprague-Dawley (SD) were injected intraperitoneally with 65 mg/kg streptozotocin (STZ) to induce diabetes and then administered orally with As-IV (40, 80 mg/kg) for 8 weeks. Vascular function was evaluated by vascular reactivity in vivo and in vitro. The expression of calpain-1 and eNOS in the aorta of diabetic rats was examined by western blot. NO production was measured using nitrate reductase method. Oxidative stress was determined by measuring SOD, GSH-px and ROS. RESULTS Our results showed that As-IV administration significantly improved diabetes associated ED in vivo, and both NAC (an antioxidant) and MDL-28170 (calpain-1 inhibitor) significantly attenuated hyperglycemia-induced ED in vitro. Meanwhile, pretreatment with the inhibitor l-NAME nearly abolished vasodilation to ACh in all groups of rats. Furthermore, As-IV increased NO production and the expression of eNOS in the thoracic aorta of diabetic rats. In addition, the levels of ROS were significantly increased, and the activity of SOD and GSH-px were decreased in diabetic rats, while As-IV administration reversed this change in a concentration-dependent manner. CONCLUSION These results suggest that As-IV improves endothelial dysfunction in thoracic aortas from diabetic rats by reducing oxidative stress and calpain-1.
Collapse
Affiliation(s)
- Qu Nie
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China; The Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China
| | - Liping Zhu
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Lijie Zhang
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Bin Leng
- The Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China
| | - Hongxin Wang
- The Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China.
| |
Collapse
|
15
|
Yang H, Jiang H, Ni W, Leng B, Bin X, Chen G, Tian Y, Gu Y. Treatment Strategy for Unruptured Intracranial Aneurysm in Elderly Patients: Coiling, Clipping, or Conservative? Cell Transplant 2019; 28:767-774. [PMID: 30648433 PMCID: PMC6686429 DOI: 10.1177/0963689718823517] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
An increasing number of unruptured intracranial aneurysms (UIAs) has been
discovered in elderly patients in recent years, but the optimal treatment
strategy for these patients remains controversial. We report our six-year
experience treating UIAs in elderly patients (≥ 70 years old). A retrospective
review was conducted of elderly patients who harbored UIAs treated by
conservative observation, microsurgical clipping, or endovascular coiling
between January 2009 and December 2014. The patients’ clinical and imaging
information was recorded. Treating methods, procedure-related complications,
imaging results, and clinical outcomes were analyzed. A total of 141 consecutive
elderly patients with 166 UIAs were enrolled in our study. In all, 64 patients
with 79 aneurysms were treated with coiling, and 14 patients with 14 aneurysms
were treated with clipping. The remaining 63 patients with 73 aneurysms were
placed under conservative observation. The average modified Rankin scale was
0.99 (range 0–6) in the full cohort after a mean follow-up of 50.4 months (range
0–70 months). There was no significant difference of modified Rankin scale in
patients with UIAs treated by different methods. Multivariate analysis showed
that age (p=0.030) and aneurysm size (p=0.011)
were independent risk factors for unfavorable outcome of UIAs in the elderly.
Patient age (p=0.010) and aneurysm size
(p=0.020) were also significantly associated with unfavorable
outcome of UIAs managed with observation initially. Our results indicated that
endovascular coil embolization and clipping were both safe and effective
treatment methods for UIAs in the elderly. Aggressive treatment for UIAs in
elderly patients with risk factors of aneurysm rupture should be considered
positively.
Collapse
Affiliation(s)
- H Yang
- 1 Division of Cerebrovascular Surgery and Interventional Neuroradiology, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - H Jiang
- 1 Division of Cerebrovascular Surgery and Interventional Neuroradiology, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - W Ni
- 1 Division of Cerebrovascular Surgery and Interventional Neuroradiology, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - B Leng
- 1 Division of Cerebrovascular Surgery and Interventional Neuroradiology, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - X Bin
- 1 Division of Cerebrovascular Surgery and Interventional Neuroradiology, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - G Chen
- 1 Division of Cerebrovascular Surgery and Interventional Neuroradiology, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Y Tian
- 1 Division of Cerebrovascular Surgery and Interventional Neuroradiology, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Y Gu
- 1 Division of Cerebrovascular Surgery and Interventional Neuroradiology, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
16
|
Cui W, Leng B, Wang G. Klotho protein inhibits H 2O 2-induced oxidative injury in endothelial cells via regulation of PI3K/AKT/Nrf2/HO-1 pathways. Can J Physiol Pharmacol 2018; 97:370-376. [PMID: 30576222 DOI: 10.1139/cjpp-2018-0277] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [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: 11/22/2022]
Abstract
Klotho protein secreted in the blood could act as a hormone to regulate various target organs and have a protective effect on the cardiovascular system. Numerous studies had shown that Klotho protein had antioxidative stress, anti-inflammatory, and antiapoptotic effects on vascular endothelial cells. The purpose of this study was to investigate the protective mechanism of Klotho protein on oxidative damage of vascular endothelial cells induced by H2O2. Klotho protein significantly enhanced human umbilical vein endothelial cells viability and increased the activities of antioxidant enzymes (superoxide dismutase, catalase, and heme oxygenase-1 (HO-1)), scavenged reactive oxygen species, and inhibited tumor necrosis factor alpha and interleukin 6 secretion. Klotho protein also reduced the rate of apoptosis of cells and improved the function of vascular endothelial cells (increased nitric oxide secretion). Klotho protein activated nuclear translocation of Nrf2 and increased HO-1 expression. Klotho protein also activated phosphorylation of protein kinase B (AKT), whereas the addition of LY294002, a pharmacological inhibitor of phosphatidylinositol 3-kinase (PI3K), blocked Klotho-protein-induced Nrf2/HO-1 activation and cytoprotection. Klotho protein enhanced the antioxidant defense ability of the cells by activating the PI3K/AKT pathway, which upregulated the expression of Nrf2/HO-1, thereby inhibiting H2O2-induced oxidative damage.
Collapse
Affiliation(s)
- Wei Cui
- a Department of Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China.,b Department of Internal Medicine-Cardiovascular, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Bin Leng
- b Department of Internal Medicine-Cardiovascular, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - GaoPin Wang
- a Department of Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China
| |
Collapse
|
17
|
Zheng Y, Zhou B, Wang X, Chen H, Fang X, Jiang P, Yang H, He C, Yang G, Song Y, An Q, Leng B. Size, Aspect Ratio and Anatomic Location of Ruptured Intracranial Aneurysms: Consecutive Series of 415 Patients from a Prospective, Multicenter, Observational Study. Cell Transplant 2018; 28:739-746. [PMID: 30514102 PMCID: PMC6686434 DOI: 10.1177/0963689718817227] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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] [Indexed: 12/23/2022] Open
Abstract
To analyze the size and location distribution of ruptured intracranial aneurysms (IAs) helps to provide evidence for clinical treatment of unruptured IAs using this feature of aneurysms. In this study, 415 patients who presented with an acute subarachnoid hemorrhage caused by IAs were enrolled from eight tertiary referral centers between June 2016 and March 2018. The size, aspect ratio and anatomic location of ruptured IAs were defined and reported by patient sex. In the study cohort of 415 patients (60.5% women) with saccular ruptured IAs, the three most common locations of ruptured IAs were posterior communicating artery (32.0%), anterior communicating artery (28.7%), and middle cerebral artery (13.5%). The mean size of all ruptured IAs was 5.3±3.1 mm (range 1.1-28.5 mm), but the size varied considerably by location. For example, ruptured IAs of the posterior communicating artery had a mean size of 5.8±3.1 mm, whereas the mean size of ruptured anterior communicating artery aneurysms was 4.6±1.7 mm. The mean AR in all ruptured IAs was 1.66±0.76. Of those aneurysms, 243 (58.6%) had an AR smaller than 1.6 and 318 (76.6%) had an AR smaller than 2.0. Our results suggested that the size of the most ruptured IAs are smaller than 7 mm or even 5 mm. The size and AR varied by sex and location. With the knowledge of size, location and AR, multiplicity should be considered for treatment strategies of unruptured IAs.
Collapse
Affiliation(s)
- Y Zheng
- 1 Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - B Zhou
- 1 Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Wang
- 2 Department of Neurosurgery, Puning People's Hospital, China
| | - H Chen
- 3 Department of Neurosurgery, Nanjing First Hospital, China
| | - X Fang
- 4 Department of Neurosurgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, China
| | - P Jiang
- 5 Department of Neurosurgery, Laizhou City People's Hospital, China
| | - H Yang
- 6 Department of Neurosurgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - C He
- 7 Department of Neurosurgery, The first affiliated hospital of Chongqing medical college, Chongqing, China
| | - G Yang
- 8 Department of Neurosurgery, Wuhan Hanyang Hospital, China
| | - Y Song
- 1 Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Q An
- 1 Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - B Leng
- 1 Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| |
Collapse
|
18
|
Lu M, Leng B, He X, Zhang Z, Wang H, Tang F. Calcium Sensing Receptor-Related Pathway Contributes to Cardiac Injury and the Mechanism of Astragaloside IV on Cardioprotection. Front Pharmacol 2018; 9:1163. [PMID: 30364197 PMCID: PMC6193074 DOI: 10.3389/fphar.2018.01163] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 09/24/2018] [Indexed: 11/29/2022] Open
Abstract
Activation of calcium sensing receptor (CaSR) contributes to cardiac injury, but the underlying mechanism has not yet been examined. Astragaloside IV (AsIV) was previously reported to exhibit protective effects against various myocardial injuries. The aim of the present study was to investigate the underlying mechanism of CaSR in cardiac hypertrophy and apoptosis and to evaluate whether the protective effect of AsIV against myocardial injury is associated with CaSR and its related signaling pathway. In vivo and in vitro myocardial injury was induced by isoproterenol (Iso) or GdCl3 (a CaSR agonist) in rats and heart H9C2 cells. Cardiac cell hypertrophy, apoptosis, function, Mitochondrial Membrane Potential (MMP), mitochondrial ultrastructure, and [Ca2+]i, as well as the protein expression of CaSR, calcium/calmodulin-dependent protein kinase II (CaMKII), calcineurin (CaN), sarcoplasmic reticulum Ca2+-ATPase2a (SERCA2a), and the inositol 1,4,5-trisphosphate receptor (IP3R), were measured in vivo and/or in vitro. The results showed that AsIV attenuated cardiac hypertrophy and apoptosis and attenuated impairments in cardiac function, mitochondrial structure, and MMP induced by Iso or GdCl3 in rat myocardial tissue and H9C2 cells. Importantly, AsIV treatment inhibited the enhancement of [Ca2+]i and CaSR expression induced by Iso or GdCl3, an effect similar to that of the CaSR antagonist NPS2143. In addition, AsIV treatment repressed CaSR, CaMKII, and CaN activation and inhibited NFAT-3 nuclear translocation. Mechanistic analysis using lentivirus infection showed that CaSR overexpression activated the CaMKII and CaN signaling pathways and that this response was enhanced by Iso. The results suggested that CaSR-mediated changes in [Ca2+]i and CaMKII and CaN signaling pathways contribute to cardiac hypertrophy and apoptosis and are involved in the protective effect of astragaloside IV against cardiac injury.
Collapse
Affiliation(s)
- Meili Lu
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China
| | - Bin Leng
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China
| | - Xin He
- Internal Medicine-Cardiovascular Department, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zhen Zhang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China
| | - Hongxin Wang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China
| | - Futian Tang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou, China
| |
Collapse
|
19
|
Leng B, Tang F, Lu M, Zhang Z, Wang H, Zhang Y. Astragaloside IV improves vascular endothelial dysfunction by inhibiting the TLR4/NF-κB signaling pathway. Life Sci 2018; 209:111-121. [PMID: 30081006 DOI: 10.1016/j.lfs.2018.07.053] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [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: 04/19/2018] [Revised: 07/17/2018] [Accepted: 07/28/2018] [Indexed: 01/10/2023]
Abstract
AIMS Astragaloside IV (As-IV) is the major active ingredient of Astragalus membranaceus and has diverse pharmacological activities, including anti-inflammatory and antioxidant effects. However, the beneficial effect of As-IV on protecting vascular endothelial dysfunction is not completely understood. The aim of this study was to investigate the protective effect and mechanism of As-IV on vascular endothelial dysfunction. MATERIALS AND METHODS A diabetes model was established by intraperitoneal injection of streptozotocin (STZ). Endothelial function in isolated aortic rings was examined; serum interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were tested by ELISA. The expression of nuclear Factor-κB p65 (NF-κB p65) in aortic tissue was detected by immunohistochemistry. Plasma nitric oxide (NO) was measured by the nitrate reductase method. The expressions of endothelial nitric oxide synthase (eNOS), intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and toll-like receptor 4 (TLR4) in aortic tissue were determined by western blot. KEY FINDINGS The results showed that As-IV significantly improved aortic endothelial function; increased eNOS expression and NO production; and decreased the content of IL-6 and TNF-α and the expressions of VCAM-1, ICAM-1, TLR4, and nuclear NF-κB p65 in vitro and in vivo. In addition, the above mentioned effects of As-IV on human umbilical vein endothelial cells (HUVECs) were similar to TAK-242 (TLR4 inhibitor) and Bay 11-7082 (NF-κB p65 inhibitor). Furthermore, L-NAME (NO synthesis inhibitor) partially abolished the effect of As-IV. SIGNIFICANCE As-IV could improve vascular endothelial dysfunction induced by hyperglycemia, and the protective effect of As-IV may be via the TLR4/NF-κB signaling pathway.
Collapse
Affiliation(s)
- Bin Leng
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China; First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Futian Tang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China
| | - Meili Lu
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China
| | - Zhen Zhang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China
| | - Hongxin Wang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Jinzhou Medical University, Jinzhou 121001, China.
| | - Yingjie Zhang
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China.
| |
Collapse
|
20
|
Liu JM, Zhou Y, Li Y, Li T, Leng B, Zhang P, Liang G, Huang Q, Yang PF, Shi H, Zhang J, Wan J, He W, Liang C, Zhu G, Xu Y, Hong B, Yang X, Bai W, Tian Y, Zhang H, Li Z, Li Q, Zhao R, Fang Y, Zhao K. Parent Artery Reconstruction for Large or Giant Cerebral Aneurysms Using the Tubridge Flow Diverter: A Multicenter, Randomized, Controlled Clinical Trial (PARAT). AJNR Am J Neuroradiol 2018; 39:807-816. [PMID: 29599173 DOI: 10.3174/ajnr.a5619] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 02/26/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE Although flow diverters have been reported with favorable clinical and angiographic outcomes in various literatures, randomized trials determining their true effectiveness and safety are still in lack. The Parent Artery Reconstruction for Large or Giant Cerebral Aneurysms Using the Tubridge Flow Diverter (PARAT) trial was designed to evaluate the safety and efficacy of the Tubridge flow diverter in the treatment of large or giant aneurysms in comparison with Enterprise stent-assisted coiling. MATERIALS AND METHODS This prospective, multicenter, randomized trial was conducted at 12 hospitals throughout China. Enrolled adults with unruptured large/giant intracranial aneurysms were randomly assigned (1:1) to receive either Enterprise stent-assisted coiling or Tubridge flow diverter implantation. The primary end point was complete occlusion at 6-month follow-up, while secondary end points included technical success, mortality, target vessel-related stroke, aneurysm bleeding, in-stent stenosis, parent artery occlusion, and the frequency of all adverse events. RESULTS Among 185 enrolled subjects, 41 withdrew before procedure initiation. Overall, 82 subjects underwent Tubridge implantation, and 62 subjects were primarily treated with stent-assisted coiling. The results of 6-month follow-up imaging included complete occlusion rates of 75.34% versus 24.53% for the Tubridge and stent-assisted coiling groups, respectively, with a calculated common odds ratio of 9.4 (95% confidence interval, 4.14-21.38; P < .001). There was a higher, nonsignificant frequency of complications for Tubridge subjects. Multivariate analysis showed a decreased stroke rate at the primary investigational site, with a marginal P value (P = .051). CONCLUSIONS This trial showed an obviously higher rate of large and giant aneurysm obliteration with the Tubridge FD over Enterprise stent-assisted coiling. However, this higher obliteration rate came at the cost of a nonsignificantly higher rate of complications. Investigational site comparisons suggested that a learning curve for flow-diverter implantation should be recognized and factored into trial designs.
Collapse
Affiliation(s)
- J-M Liu
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - Y Zhou
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - Y Li
- Department of Neurosurgery (Y.L., X.Y.), Tiantan Hospital, Beijing, China
| | - T Li
- Department of Interventional Radiology (T.L., W.B.), Henan Provincial People's Hospital, Henan Province, China
| | - B Leng
- Department of Neurosurgery (B.L., Y.T.), Huashan Hospital, Shanghai, China
| | - P Zhang
- Department of Neurosurgery (P.Z., H.Z.), Xuanwu Hospital, Beijing, China
| | - G Liang
- Department of Neurosurgery (G.L., Z.L.), General Hospital of Shenyang Military, Shenyang Province, China
| | - Q Huang
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - P-F Yang
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - H Shi
- Department of Neurosurgery (H.S.), First Clinical Hospital affiliated with Harbin Medical University, Heilongjiang Province, China
| | - J Zhang
- Department of Neurosurgery (J.Z.), Second Affiliated Hospital of Zhejiang University, Hangzhou Municipality, Zhejiang, China
| | - J Wan
- Department of Neurosurgery (J.W.), Renji Hospital, Shanghai, China
| | - W He
- Department of Neurosurgery (W.H.), Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - C Liang
- Department of Neurosurgery (C.L.), First Hospital of China Medical University, Shenyang Municipality, Liaoning, China
| | - G Zhu
- Department of Neurosurgery (G.Z.), Southwest Hospital, Chongqing Municipality, China
| | - Y Xu
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - B Hong
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - X Yang
- Department of Neurosurgery (Y.L., X.Y.), Tiantan Hospital, Beijing, China
| | - W Bai
- Department of Interventional Radiology (T.L., W.B.), Henan Provincial People's Hospital, Henan Province, China
| | - Y Tian
- Department of Neurosurgery (B.L., Y.T.), Huashan Hospital, Shanghai, China
| | - H Zhang
- Department of Neurosurgery (P.Z., H.Z.), Xuanwu Hospital, Beijing, China
| | - Z Li
- Department of Neurosurgery (G.L., Z.L.), General Hospital of Shenyang Military, Shenyang Province, China
| | - Q Li
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - R Zhao
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - Y Fang
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | - K Zhao
- From the Department of Neurosurgery, (J.-m.L., Y.Z., P.-f.Y., B.H., Y.X., Q.L., R.Z., Y.F., K.Z., Q.H.), Shanghai Changhai Hospital, Shanghai, China
| | | |
Collapse
|
21
|
Jia G, Leng B, Wang H, Dai H. Inhibition of cardiotrophin‑1 overexpression is involved in the anti‑fibrotic effect of Astrogaloside IV. Mol Med Rep 2017; 16:8365-8370. [PMID: 28990065 DOI: 10.3892/mmr.2017.7676] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 09/19/2017] [Indexed: 11/06/2022] Open
Abstract
Astragaloside IV (AsIV), one of the major active ingredients in Astragalus membranaceus, has demonstrated remarkable antifibrotic effects via its antioxidative activity. Cardiac fibrosis is an important pathological mechanism during cardiac remodelling associated with heart failure. In the present study, the mechanism underlying the antifibrotic effect of AsIV upon isoprenaline (ISO) stimulation was investigated. AsIV significantly improved cardiac fibrosis in vivo and dose‑dependently inhibited ISO‑induced CF proliferation in vitro. The ISO‑triggered elevation in reactive oxygen species (ROS) levels was remarkably inhibited by AsIV, as well as ROS scavenger N‑acetylcysteine (NAC), and not affected by cardiotrophin‑1 (CT‑1) knockdown. In addition, AsIV effectively reversed ISO‑induced upregulation of CT‑1 expression, which was blunted by pretreatment with NAC. Cardiac fibroblast (CF) proliferation and collagen Ι overexpression induced by ISO stimulation were effectively abrogated by AsIV, NAC, and CT‑1 small interfering RNA transfection. Taken together, these results demonstrated that AsIV was able to effectively inhibit ISO‑induced CF proliferation and collagen production through negative regulation of ROS‑mediated CT‑1 upregulation.
Collapse
Affiliation(s)
- Guizhi Jia
- Department of Physiology, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Bin Leng
- Department of Pharmacology, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Hongxin Wang
- Department of Pharmacology, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Hongliang Dai
- Department of Community Health Nursing, School of Nursing, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| |
Collapse
|
22
|
Song JP, Ni W, Gu YX, Zhu W, Chen L, Xu B, Leng B, Tian YL, Mao Y. Epidemiological Features of Nontraumatic Spontaneous Subarachnoid Hemorrhage in China: A Nationwide Hospital-based Multicenter Study. Chin Med J (Engl) 2017; 130:776-781. [PMID: 28345540 PMCID: PMC5381310 DOI: 10.4103/0366-6999.202729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Nontraumatic spontaneous subarachnoid hemorrhage (SAH) is associated with a high mortality. This study was conducted to investigate the epidemiological features of nontraumatic spontaneous SAH in China. METHODS From January 2006 to December 2008, the clinical data of patients with nontraumatic SAH from 32 major neurosurgical centers of China were evaluated. Emergent digital subtraction angiography (DSA) was performed for the diagnosis of SAH sources in the acute stage of SAH (≤3 days). The results and complications of emergent DSA were analyzed. Repeated DSA or computed tomography angiography (CTA) was suggested 2 weeks later if initial angiographic result was negative. RESULTS A total of 2562 patients were enrolled, including 81.4% of aneurysmal SAH and 18.6% of nonaneurysmal SAH. The total complication rate of emergent DSA was 3.9% without any mortality. Among the patients with aneurysmal SAH, 321 cases (15.4%) had multiple aneurysms, and a total of 2435 aneurysms were detected. The aneurysms mostly originated from the anterior communicating artery (30.1%), posterior communicating artery (28.7%), and middle cerebral artery (15.9%). Among the nonaneurysmal SAH cases, 76.5% (n = 365) had negative initial DSA, including 62 cases with peri-mesencephalic nonaneurysmal SAH (PNSAH). Repeated DSA or CTA was performed in 252 patients with negative initial DSA, including 45 PNSAH cases. Among them, the repeated angiographic results remained negative in 45 PNSAH cases, but 28 (13.5%) intracranial aneurysms were detected in the remaining 207 cases. In addition, brain arteriovenous malformation (AVM, 7.5%), Moyamoya disease (7.3%), stenosis or sclerosis of the cerebral artery (2.7%), and dural arteriovenous fistula or carotid cavernous fistula (2.3%) were the major causes of nonaneurysmal SAH. CONCLUSIONS DSA can be performed safely for pathological diagnosis in the acute stage of SAH. Ruptured intracranial aneurysms, AVM, and Moyamoya disease are the major causes of SAH detected by emergent DSA in China.
Collapse
Affiliation(s)
- Jian-Ping Song
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Wei Ni
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Yu-Xiang Gu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Wei Zhu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Liang Chen
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Bin Xu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Bin Leng
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Yan-Long Tian
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Ying Mao
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040; State Key Laboratory of Medical Neurobiology, School of Basic Medical Sciences and Institutes of Brain Science, Fudan University, Shanghai 200032, China
| |
Collapse
|
23
|
Leng B, Jin X, Lin Q, Chen L, Wang Y, Du Z, Lin K, Chang J, Gu X, Wang C. A comparative study of proliferation and osteogenic differentiation of rat adipose-derived stem cells in β-tricalcium phosphate (β-TCP), forsterite (Mg2SiO4) and clinoenstatite (MgSiO3). ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-5874-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
24
|
|
25
|
Wang J, Qiu J, Dong J, Li H, Luo M, Dai X, Zhang Y, Leng B, Niu X, Zhao S, Deng X. Chrysin protects mice from Staphylococcus aureus pneumonia. J Appl Microbiol 2011; 111:1551-8. [DOI: 10.1111/j.1365-2672.2011.05170.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
26
|
Wang Q, Chen C, Song D, Leng B. Transarterial embolization of traumatic carotid-superior hypophyseal arterial cavernous fistula. A case report. Interv Neuroradiol 2010; 16:278-81. [PMID: 20977860 DOI: 10.1177/159101991001600308] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Accepted: 07/18/2010] [Indexed: 11/15/2022] Open
Abstract
A 26-year-old man presented with symptoms of progressive bilateral exophthalmos and swelling of the eyelids after a severe head injury. Angiography confirmed a direct carotid-superior hypophyseal arterial (SHA) cavernous fistula with petrosal sinus and intracavernous sinus drainage. Successful transarterial coil embolization of the fistula was performed with resolution of the patient's symptoms. To our knowledge, post-traumatic arteriovenous fistula between SHA and the cavernous sinus has not been previously reported. We hereby demonstrate an effective, minimally invasive method of occluding a rare fistula by transarterial embolization.
Collapse
Affiliation(s)
- Q Wang
- Department of Neurosurgery, Fudan University, Shanghai, China.
| | | | | | | |
Collapse
|
27
|
Liu Y, Liu HC, Wu X, E LL, Leng B. [Biological transport of minocycline by human periodontal ligament fibroblasts]. Hua Xi Kou Qiang Yi Xue Za Zhi 2008; 26:237-240. [PMID: 18705500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To investigate biological transport of minocycline by human periodontal ligament fibroblasts (HPDLF). To verify the hypothesis of delivering medicine to periodontium and the whole body through the root canal. METHODS HPDLF and MC3T3-E1 cells were incubated in minocycline solutions. The intracellular antibiotics contents were measured by high performance liquid chromatography (HPLC) and the cell total protein was measured by Bradford protein assay. RESULTS HPLC was an accurate, sensitive method for measurement of the intracellular minocycline. The incubation time and cell property had significant effect on the intracellular minocycline contents (P< 0.01). The intracellular contents increased with extracellular concentration. CONCLUSION Minocycline can be transported by HPDLF. The transport is concentration-dependent, time-dependent and cell specific.
Collapse
Affiliation(s)
- Yu Liu
- Dental Institute, General Hospital of PLA, Beijing 100853, China
| | | | | | | | | |
Collapse
|
28
|
Liu Y, Liu HC, Wu X, E LL, Leng B. [Biological transport of tetracycline hydrochloride by human periodontal ligament fibroblasts]. Zhonghua Kou Qiang Yi Xue Za Zhi 2008; 43:57-58. [PMID: 18380980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To investigate biological transport of tetracycline hydrochloride by human periodontal ligament fibroblasts (HPDLF) for verifying the hypothesis of delivering medicine to the periodontium and whole body through the root canal. METHODS HPDLF and MC3T3-E1 cells were incubated in antibiotics solutions. The intracellular antibiotics contents were measured by high performance liquid chromatography (HPLC) and the cell total protein was measured by bradford protein assay. RESULTS The intracellular contents increased with incubation time. The extracellular medicine concentration had effect on the intracellular contents. CONCLUSIONS Tetracycline hydrochloride can be transported into HPDLF with incubation and this transport is time-dependent and concentration-dependent.
Collapse
Affiliation(s)
- Yu Liu
- Dental Institute, General Hospital of PLA, Beijing 100853, China
| | | | | | | | | |
Collapse
|
29
|
Mercié P, Viallard JF, Cipriano C, Tchamgoué S, Leng B, Pellegrin JL. Aphtous stomatitis in a patient with Behçet's disease and HIV was associated with an increased HIV load. Clin Exp Rheumatol 2002; 20:S54. [PMID: 12371637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
|
30
|
Dilhuydy MS, Mercié P, Viallard JF, Dumont T, Soubeyran I, Faure I, Leng B, Pellegrin JL. [Natural killer cell nasal lymphoma mimicking localized Wegener's disease]. Rev Med Interne 2001; 22:571-5. [PMID: 11433567 DOI: 10.1016/s0248-8663(01)00389-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Primary non-Hodgkin's lymphoma of the nasal cavity is particular. Pathological characteristics mainly associate a prevalent NK lymphocyte phenotype, a frequent exposure to the Epstein-Barr virus and a poor sensitivity to radiotherapy compared to other lymph node localizations. EXEGESIS The authors report the case of a 38-year-old man. The patient had previously presented a chronic maxillary sinusitis. After a diagnosis of Wegener's disease, the poor course under therapy resulted in a nasal lymphoma. Natural killer cell nasal lymphoma was confirmed with a leading biopsy at the same time as a serious clinical outcome. The patient died of septic shock with multivisceral failure. CONCLUSION The two differential diagnoses of ulcerative lymphoma of the midface are ulcerative infectious diseases and Wegener's disease. We must not miss this severe disease, with its poor prognosis and variable, though sometimes rapid speed of evolution.
Collapse
Affiliation(s)
- M S Dilhuydy
- Service de médecine interne et maladies infectieuses, centre François-Magendie, hôpital Haut-Lévêque, 33604 Pessac, France
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Bonnet S, Mercié P, Lacape G, Viallard JF, Faure I, Martel J, Couzi L, Leng B, Pellegrin JL. [Macro-CK disclosing disseminated epidermoid carcinoma of the pyriform sinus in a patient with dermatomyositis]. Rev Med Interne 2001; 22:292-6. [PMID: 11270273 DOI: 10.1016/s0248-8663(00)00331-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION The association between dermatomyositis and cancer is clearly established, but its frequency remains difficult to define. EXEGESIS We report the case of an association between a dermatomyositis and a cancer of the piriform antrum. Four months after surgical treatment and radiotherapy, the increased macro-CK level gave us reason to suspect a cancer relapse with pulmonary, hepatic, splenic and renal metastases without progressive clinical signs. CONCLUSION Mitochondrial macro-CK detection must evoke the presence of neoplasia with or without metastasis, which would be a poor prognosis, as has been shown in our patient.
Collapse
Affiliation(s)
- S Bonnet
- Clinique de médecine interne et maladies infectieuses, hôpital Haut-Lévêque, 5, avenue de Magellan, 33604 Pessac, France
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Mercie P, Viallard JF, Faure I, Leng B, Pellegrin JL, Vergnes C. Mild hyperhomocysteinemia and penile venous thrombosis. Am J Hematol 2001; 66:153-4. [PMID: 11421299 DOI: 10.1002/1096-8652(200102)66:2<153::aid-ajh1036>3.0.co;2-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
33
|
Affiliation(s)
- P Mercié
- Clinique de Médecine Interne et Maladies Infectieuses, H pital Haut-Léveque, Centre Hospitalier Universitaire de Bordeaux, Pessac, France
| | | | | | | | | | | | | |
Collapse
|
34
|
Viallard JF, Taupin JL, Ranchin V, Leng B, Pellegrin JL, Moreau JF. Analysis of leukemia inhibitory factor, type 1 and type 2 cytokine production in patients with eosinophilic fasciitis. J Rheumatol 2001; 28:75-80. [PMID: 11196547] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVE Eosinophilic fasciitis (EF) is a scleroderma-like disease of unknown etiology characterized by skin induration, elevated immune globulins, and peripheral eosinophilia. The hallmarks of the chronic cutaneous involvement in this syndrome are inflammation and fibrosis of the fascia. To determine how the inflammatory process in EF may be regulated, we investigated the spontaneous and mitogen induced [lipopolysaccharide (LPS), phytohemagglutinin (PHA) or both LPS+PHA] syntheses of interleukins (IL)-2, 5 and 10, interferon-gamma (IFN-gamma), and leukemia inhibitory factor (LIF) cytokines by peripheral blood mononuclear cells (PBMC) from 4 patients with active EF and compared them to those of 10 healthy individuals. METHODS We used a short term whole blood assay and culture supernatants were collected after 24 h to measure the IL-2 and IFN-gamma contents and after 48 h to evaluate IL-5, IL-10, and LIF. Supernatant cytokine concentrations were determined by ELISA. RESULTS All 4 patients had similar patterns of cytokine secretion. Cytokine production did not differ between patients and controls under basal conditions or when LPS was added to the cultures. In contrast, under PHA or LPS+PHA stimulation, significantly higher amounts of all 5 cytokines were detected in samples from patients compared to those from controls. CONCLUSION Overall, our data suggest that EF is characterized by an increased capacity of PBMC to produce IL-5 and IL-10, possibly leading to eosinophilia and immune globulin overexpression. In this context, the simultaneous elevations of type 1 cytokines (IL-2 and IFN-gamma) and LIF production by the same cells may be an attempt by the immune system to limit the exacerbation of a type 2 dominant response.
Collapse
Affiliation(s)
- J F Viallard
- Service de Médicine Interne et Maladies Infectieuses, H pital Haut-Lévêque, Pessac, France
| | | | | | | | | | | |
Collapse
|
35
|
Blanco P, Viallard JF, Rivel J, Leng B, Pellegrin JL. Unusual manifestations of type II cryoglobulinaemia associated with Waldenström's macroglobulinaemia. J Clin Pathol 2000; 53:882-4. [PMID: 11127277 PMCID: PMC1731119 DOI: 10.1136/jcp.53.11.882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Cryoglobulinaemia in association with Waldenström's macroglobulinaemia is relatively common, ranging from 8% to 18% of cases; however, < 5% have symptoms or complications. We describe a patient with a history of cutaneous, peritoneal, and fallopian tube vasculitis related to type II cryoglobulinaemia associated with Waldenström's macroglobulinaemia. Cytotoxic treatment was initiated (cyclophosphamide, vincristine, and prednisone) and had a good initial response. However, after the third course of chemotherapy, the patient presented with septic shock and died. Even though cryoglobulinaemia is a model of systemic vasculitis, peritoneal and fallopian tube vasculitis associated with type II cryoglobulinemia has not been described previously.
Collapse
Affiliation(s)
- P Blanco
- Service de Médecine Interne, Hôpital du Haut-levêque, Avenue de Magellan, 33604 Pessac, France
| | | | | | | | | |
Collapse
|
36
|
Mercié P, Tchamgoué S, Thiébaut R, Viallard J, Faure I, Dancourt V, Marimoutou C, Dabis F, Rispal P, Darmon Y, Leng B, Pellegrin J. Atherogen lipid profile in HIV-1-infected patients with lipodystrophy syndrome. Eur J Intern Med 2000; 11:257-263. [PMID: 11025250 DOI: 10.1016/s0953-6205(00)00103-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background: Cases of lipodystrophy syndrome and metabolic disorders have been described since the onset of highly active antiretroviral therapy in HIV-infected patients. The aim of our study was to estimate the prevalence of lipodystrophy (LD) and to define the associated lipid profile of these patients. Methods: The following were determined for each patient: lipid profile (cholesterol and its subfractions, atherogenicity ratios, and triglycerides), blood glucose, and immunovirological markers (CD4(+) cell count and plasma viral load). Patients were classified into two groups on the basis of whether or not they presented with clinical signs of LD. Results: Among 233 HIV-infected patients included in the study, 61 cases (26.1%) of lipodystrophy (LD) were noted. Compared with non-LD patients (NLD), LD patients were older men (P<10(-4)) with a lower CD4(+) lymphocyte cell count (P<0.007) and more often at the AIDS stage (P<10(-3)) (OR=3.2 (95% CI: 1.47-6.2)). Multivariate analysis showed a correlation between LD cases and age (10 years older) (OR=1.78 (95% CI: 1.23-2.57), P<0.002) and the decrease in CD4(+) cell count (100 CD4(+)/mm(3) lower) (OR=1.31 (95% CI: 1.09-1.58), P<0.004). An analysis of lipid subfractions and atherogenicity ratios clearly indicated a proatherogenic lipid profile for the LD patients. Conclusions: The underlying physiopathological mechanism of LD is still unknown. However, the lipid profile of HIV-1-infected patients with a LD syndrome appears to place these patients at an increased risk of progression of atherosclerosis.
Collapse
Affiliation(s)
- P Mercié
- Clinique de Médecine Interne et Maladies Infectieuses, Hôpital Haut Lévêque, Centre Hospitalier Universitaire de Bordeaux, 33604, Pessac, France
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Abstract
INTRODUCTION Pancreatic cancer is responsible for 6,000 deaths per year in France. During the course of the disease, venous thrombosis is common. Conversely, arterial thrombosis is rarely described. EXEGESIS We report the case of a 59-year-old patient with pancreatic adenocarcinoma. Treatment by gemcitabine allowed rapid and persistent improvement of the body weight and a prolonged survival (18 months). Sudden complication, i.e. splenic arterial thrombosis, reversed the favorable outcome. CONCLUSION Splenic venous thrombosis is a frequent complication occurring in the course of pancreatic cancer. It is easily diagnosed using abdominal computerized tomography. Arterial thrombosis is rarely observed. It might be due to either sporadic, unexpected, occurrence of cases related to the evolution of underlying pathological mechanisms, or to omitted treatment of vascular complications, as until the introduction of new anticancer drugs this disease was considered to be of very poor prognosis.
Collapse
Affiliation(s)
- P Mercié
- Clinique de médecine interne et maladies infectieuses, hôpital du Haut-Lévêque, Pessac, France
| | | | | | | | | | | | | |
Collapse
|
38
|
Viallard JF, Boiron JM, Parrens M, Moreau JF, Ranchin V, Reiffers J, Leng B, Pellegrin JL. Severe pancytopenia triggered by recombinant hepatitis B vaccine. Br J Haematol 2000; 110:230-3. [PMID: 10931005 DOI: 10.1046/j.1365-2141.2000.02171.x] [Citation(s) in RCA: 24] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We describe the case of a teenager who developed fever, arthritis, cutaneous vasculitis and severe pancytopenia 3 weeks after the third vaccination boost with a recombinant hepatitis B vaccine. Bone marrow examination showed paucity of late myeloid elements and, subsequently, maturation arrest. Interferon-gamma (IFN-gamma) production by peripheral blood mononuclear cells from the patient was dramatically increased. An underlying immune predisposition (HLA-DR3) may have indirectly enabled the vaccine to trigger a hepatitis B virus-specific cytotoxic T-lymphocyte response. It is therefore possible that the pancytopenia was induced by a dysregulation of the CD8+ T-cell compartment via increased IFN-gamma production.
Collapse
Affiliation(s)
- J F Viallard
- Clinique de Médecine Interne et Maladies Infectieuses, Service d'Hématologie, Laboratoire d'Anatomopathologie, Hôpital Haut-Lévêque, Pessac, France.
| | | | | | | | | | | | | | | |
Collapse
|
39
|
|
40
|
Mercié P, Faure I, Viallard JF, Leng B, Pellegrin JL. [An irresistible weight gain]. Rev Med Interne 2000; 21:635-6. [PMID: 10942982 DOI: 10.1016/s0248-8663(00)80011-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- P Mercié
- Clinique de médecine interne et maladies infectieuses, hôpital du Haut-Lévêque, CHU de Bordeaux, Pessac, France
| | | | | | | | | |
Collapse
|
41
|
Martin-Moe S, Ellis J, Coan M, Victor R, Savage J, Bogren N, Leng B, Lee C, Burnett M, Montgomery P. Validation of critical process input parameters in the production of protein pharmaceutical products: a strategy for validating new processes or revalidating existing processes. PDA J Pharm Sci Technol 2000; 54:315-9. [PMID: 10969528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
|
42
|
Mercié P, Viallard JF, Faure I, Trimoulet P, Vital A, Lifermann F, Leng B, Pellegrin JL. Hepatitis C virus infection with and without cryoglobulinemia as a case of Churg-Strauss syndrome. J Rheumatol 2000; 27:814-7. [PMID: 10743831] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Chronic hepatitis C virus (HCV) infection may be associated with numerous immune disorders, with vasculitis including polyarteritis nodosa, or with both. Cryoglobulinemia, which is often present, can also be expressed by vasculitis. We describe 2 cases of Churg-Strauss syndrome (CSS) in patients with HCV infection. We found no previous case of CSS accompanying HCV infection in the literature. The current patients were women aged 40 and 66 years. In both cases, a clinical and laboratory pattern suggesting CSS was found before the HCV infection was discovered. One patient had cryoglobulinemia. One patient was successfully treated with interferon (IFN). The other was treated for 18 months with IFN and corticosteroids. Second-line therapy consisting of IFN with ribavirin was successful. The emergence of HCV infection may have led to an induced form of CSS. The relationship among HCV, cryoglobulinemia, and CSS is not clear, but may be similar to that existing between polyarteritis nodosa and hepatitis B virus. These observations suggest that IFN-alpha therapy may be effective against CSS in HCV infected patients with or without cryoglobulinemia.
Collapse
Affiliation(s)
- P Mercié
- Clinique de Médecine Interne et Maladies Infectieuses, Hôpital Haut Lévêque, Pessac, France.
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Abstract
We describe a 58-year old patient with chronic lymphocytic leukemia (CLL) who developed systemic lupus erythematosus (SLE) with severe joint involvement. Dilated myocardiopathy precluded the use of high corticoid doses and a 15 days of prednisone (15mg/d) had no effect on the polyarthritis. Therefore, fludarabine (25mg/m2) was administered for 5 d. One month after the first cycle, fever, muscle stiffness and polyarthritis resolved. A total of 6 cycles were administered. The evolution was complicated by herpes zoster infection and left pneumococcal pneumonia. At this time of writing (July 1999), the patient is symptom free but is profoundly lymphopenic.
Collapse
MESH Headings
- Antineoplastic Agents/administration & dosage
- Humans
- Immunosuppressive Agents/administration & dosage
- Leukemia, Lymphocytic, Chronic, B-Cell/complications
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Lupus Erythematosus, Systemic/complications
- Lupus Erythematosus, Systemic/drug therapy
- Lupus Erythematosus, Systemic/immunology
- Male
- Middle Aged
- Vidarabine/administration & dosage
- Vidarabine/analogs & derivatives
Collapse
Affiliation(s)
- J F Viallard
- Clinique de Médecine Interne, Hôpital Haut-Lévêque, Pessac, France.
| | | | | | | | | |
Collapse
|
44
|
Dilhuydy MS, Mercié P, Doutre MS, Viallard JF, Faure I, Ellie E, Beylot C, Leng B, Pellegrin JL. [Acrodystrophic neuropathy of Bureau and Barrière]. Rev Med Interne 1999; 20:1126-31. [PMID: 10635075 DOI: 10.1016/s0248-8663(00)87527-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The acrodystrophic neuropathy described by Bureau and Barrière in the 1950s is a rare trophic complication of chronic, analgesic neuropathy due to alcohol abuse, which is at the origin of perforating ulcers of the foot, vasomotor disorders with dysautonomia, and leads to mutilating arthropathy of the lower limb. This neuroacropathy, also termed vagabonds' or vagrants' disease, usually occurs in subjects with a debilitated condition, chronic alcoholism, and unfavourable socioeconomic conditions. EXEGESIS We report four cases of Bureau-Barrière disease which occurred in male subjects who were on average 55 years of age. The clinical presentation was close to that reported in the literature. Indeed, all four patients were alcoholic, nondiabetic and lived under conditions of precarious hygiene. Therapeutic management of the patients was difficult due to bad compliance with the treatment and persistence of alcohol abuse. Immobilization of the foot is considered to be the primary treatment. Local care including baths and bandages with hydrocolloids must be continued during several months, and associated with antibiotic therapy, administered by infusion when necessary. The outcome is often chronic, with poor prognosis. Given the limited therapeutic possibilities, acrodystrophic neuropathy is an invalidating disease with high morbidity. CONCLUSION Bureau-Barrière disease is a rare, serious invalidating disease. The clinical symptomatology is usually based on the diagnostic triad: analgesia of the foot, perforating ulcers of the foot, and deforming and mutilating arthropathy of the lower limb. Treatment is often hampered due to poor compliance with local care and persistence of alcohol abuse.
Collapse
Affiliation(s)
- M S Dilhuydy
- Clinique de médecine interne et maladies infectieuses, Hôpital Haut-Lévêque, CHU de Bordeaux, Pessac, France
| | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Blanco P, Viallard JF, Ellie E, Faure I, Mercié P, Pellegrin JL, Leng B. Extensive brain calcifications in systemic sclerosis: two cases. J Neurol Neurosurg Psychiatry 1999; 67:697-8. [PMID: 10577042 PMCID: PMC1736612 DOI: 10.1136/jnnp.67.5.697a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
46
|
Mercié P, Faure I, Viallard J, Leng B, Pellegrin IL. Lipodystrophie sous inhibiteurs nucléosidiques de la transcriptase inverse: trois cas. Med Mal Infect 1999. [DOI: 10.1016/s0399-077x(00)87144-9] [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: 11/16/2022]
|
47
|
|
48
|
Blanco P, Viallard JF, Beylot-Barry M, Faure I, Mercié P, Vergier B, Pellegrin JL, Leng B. Cutaneous cryptococcosis resembling molluscum contagiosum in a patient with non-Hodgkin's lymphoma. Clin Infect Dis 1999; 29:683-4. [PMID: 10530468 DOI: 10.1086/598655] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- P Blanco
- Service de Médecine Interne et Maladies Infectieuses, Hôpital du Haut Leveque, Pessac, France
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Viallard JF, Denis D, Texier-Maugein J, Parrens M, Faure I, Pellegrin JL, Leng B. Disseminated infection after bacille Calmette-Guérin instillation for treatment of bladder carcinoma. Clin Infect Dis 1999; 29:451-2. [PMID: 10476764 DOI: 10.1086/520238] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- J F Viallard
- Clinique de Médecine Interne et Maladies Infectieuses, Hôpital Haut-Lévêque, Pessac, France.
| | | | | | | | | | | | | |
Collapse
|
50
|
Blanco P, Viallard JF, Ellie E, Denisi R, Stoll M, Pellegrin JL, Leng B. [Group B streptococcal meningitis revealing an inner ear congenital malformation. A case report in an adult]. Rev Med Interne 1999; 20:701-4. [PMID: 10480174 DOI: 10.1016/s0248-8663(99)80491-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Group B streptococcal meningitis is unusual in adults. It occurs in patients with a chronic disease. EXEGESIS We report a case of group B streptococcal meningitis that occurred in a 32-year-old woman, uncovering inner ear congenital malformation associated with cerebrospinal fluid fistula. There was no recurrent episode of meningitis during a 2-year period following surgical correction of the malformation. CONCLUSION Clinical signs suggesting cerebrospinal fluid fistula should be considered in any adult patient with severe group B streptococcal infection.
Collapse
Affiliation(s)
- P Blanco
- Service de médecine interne et maladies infectieuses, centre François-Magendie, hôpital du Haut-Léveque, Pessac, France
| | | | | | | | | | | | | |
Collapse
|