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Xue YL, Ma YT, Gao YP, Zhang SX, Su QY, Li YF, Zhang L, Ding PF, Li XW. Long-term outcomes of delayed percutaneous coronary intervention for patients with ST-segment elevation myocardial infarction: A propensity score-matched retrospective study. Medicine (Baltimore) 2021; 100:e27474. [PMID: 34797274 PMCID: PMC8601350 DOI: 10.1097/md.0000000000027474] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 09/18/2021] [Indexed: 01/05/2023] Open
Abstract
The best time window of percutaneous coronary intervention (PCI) is within 12 hours for ST-segment elevation myocardial infarction (STEMI). However, there is limited evidence about the proper time of PCI for delayed STEMI patients.From June 2014 to June 2015, a total of 268 patients receiving PCI with second-generation drug-eluting stent in a Chinese hospital after 3 days of STEMI onset were enrolled in this retrospective study, who were divided into the early group (3-14 days) and the late group (>14 days). A propensity score match was conducted to reduce the baseline difference. The primary endpoint of all-cause death and secondary endpoints of major adverse cardiac and cerebrovascular event (myocardial infarction [MI], stroke, emergent revascularization, and rehospitalization due to heart failure) were compared using survival analysis.At last, 182 cases were matched after propensity score match, with no statistical difference in baseline characteristics and PCI data. Kaplan-Meier survival curve demonstrated no difference in all-cause death of the 2 groups (P = .512). However, the early group presented a higher incidence of MI than the late group (P = .036). The multivariate Cox regression analysis also demonstrated that the early PCI was an independent risk factor for MI compared with late PCI (hazard ratio = 3.83, 95%CI [1.91-8.82], P = .001). There was no statistical difference in other major adverse cardiac and cerebrovascular event, including stroke, emergent revascularization, and rehospitalization due to heart failure.Using the 2nd drug-eluting stent, early PCI (3-14 days) and late PCI (>14 days) have comparable efficacy and outcomes. However, patients receiving early PCI are subjected to a relatively higher risk of recurrent MI.
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Affiliation(s)
- Yu-Long Xue
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi Province, China
| | - Yue-Teng Ma
- Department of Cardiovascular Medicine, the Second Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, China
| | - Yu-Ping Gao
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi Province, China
| | - Sheng-Xiao Zhang
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, China
| | - Qin-Yi Su
- Department of Second Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi Province, China
| | - Yu-Feng Li
- Department of Neurology and Stroke Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Lei Zhang
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi Province, China
| | - Peng-Fei Ding
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi Province, China
| | - Xue-Wen Li
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi Province, China
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Xue YL, Zhang SX, Zheng CF, Li YF, Zhang LH, Su QY, Hao YF, Wang S, Li XW. Long non-coding RNA MEG3 inhibits M2 macrophage polarization by activating TRAF6 via microRNA-223 down-regulation in viral myocarditis. J Cell Mol Med 2020; 24:12341-12354. [PMID: 33047847 PMCID: PMC7686963 DOI: 10.1111/jcmm.15720] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 06/24/2020] [Accepted: 07/18/2020] [Indexed: 12/01/2022] Open
Abstract
Viral myocarditis (VMC) commonly triggers heart failure, for which no specific treatments are available. This study aims to explore the specific role of long non‐coding RNA (lncRNA) maternally expressed 3 (MEG3) in VMC. A VMC mouse model was induced by Coxsackievirus B3 (CVB3). Then, MEG3 and TNF receptor‐associated factor 6 (TRAF6) were silenced and microRNA‐223 (miR‐223) was over‐expressed in the VMC mice, followed by determination of ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS). Dual‐luciferase reporter assay was introduced to test the interaction among MEG3, TRAF6 and miR‐223. Macrophages were isolated from cardiac tissues and bone marrow, and polarization of M1 or M2 macrophages was induced. Then, the expressions of components of NLRP3 inflammatory body (NLRP3, ASC, Caspase‐1), M1 markers (CD86, iNOS and TNF‐α) and M2 markers (CD206, Arginase‐1 and Fizz‐1) were measured following MEG3 silencing. In the VMC mouse model, MEG3 and TRAF6 levels were obviously increased, while miR‐223 expression was significantly reduced. Down‐regulation of MEG3 resulted in the inhibition of TRAF6 by promoting miR‐223. TRAF6 was negatively correlated with miR‐223, but positively correlated with MEG3 expression. Down‐regulations of MEG3 or TRAF6 or up‐regulation of miR‐223 was observed to increase mouse weight, survival rate, LVEF and LVFS, while inhibiting myocarditis and inflammation via the NF‐κB pathway inactivation in VMC mice. Down‐regulation of MEG3 decreased M1 macrophage polarization and elevated M2 macrophage polarization by up‐regulating miR‐223. Collectively, down‐regulation of MEG3 leads to the inhibition of inflammation and induces M2 macrophage polarization via miR‐223/TRAF6/NF‐κB axis, thus alleviating VMC.
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Affiliation(s)
- Yu-Long Xue
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Sheng-Xiao Zhang
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Chao-Feng Zheng
- Department of Genetics Laboratory, Linfen Maternity & Child Healthcare Hospital, Linfen, China
| | - Yu-Feng Li
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Li-Hui Zhang
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Qin-Yi Su
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yu-Fei Hao
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Shu Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Xue-Wen Li
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, China
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Zhang B, Li Y, Xiang SZ, Yan Y, Yang R, Lin MP, Wang XM, Xue YL, Guan XY. Sediment Microbial Communities and Their Potential Role as Environmental Pollution Indicators in Xuande Atoll, South China Sea. Front Microbiol 2020; 11:1011. [PMID: 32523570 PMCID: PMC7261833 DOI: 10.3389/fmicb.2020.01011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 04/24/2020] [Indexed: 11/13/2022] Open
Abstract
In this study, 39 sediment samples were collected from Qilian Island, Iltis Bank, and Yongxing Island in Xuande Atoll in the South China Sea (SCS), and the microbial community structures and distribution were analyzed. The microbial community was influenced by both natural environmental factors and human activities. The abundance of genera Vibrio and Pseudoalteromonas, which are associated with pathogenicity and pollutant degradation, were significantly higher in Qilian Island than in Yongxing Island and Iltis Bank, suggesting possible contamination of Qilian Island area through human activities. Pathogenic or typical pollutants-degrading bacteria were found to be negatively correlated with most of the commonly occurring bacterial populations in marine sediment, and these bacteria were more likely to appear in the sediment of deep water layer. This co-occurrence pattern may be due to bacterial adaptation to environmental changes such as depth and contaminations from human activities, including garbage disposal, farming, and oil spills from ships. The findings of this study could help in understanding the potential influences of human activities on the ecosystem at the microbial level.
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Affiliation(s)
- Biao Zhang
- School of Ocean Sciences, China University of Geosciences, Beijing, China
| | - Yan Li
- School of Ocean Sciences, China University of Geosciences, Beijing, China
| | - Shi-Zheng Xiang
- School of Ocean Sciences, China University of Geosciences, Beijing, China
| | - Yu Yan
- School of Ocean Sciences, China University of Geosciences, Beijing, China
| | - Rui Yang
- School of Ocean Sciences, China University of Geosciences, Beijing, China
| | - Meng-Ping Lin
- School of Ocean Sciences, China University of Geosciences, Beijing, China
| | - Xue-Mu Wang
- Marine Geological Survey Institute of Hainan Province, Haikou, China
| | - Yu-Long Xue
- Marine Geological Survey Institute of Hainan Province, Haikou, China
| | - Xiang-Yu Guan
- School of Ocean Sciences, China University of Geosciences, Beijing, China.,Hebei Marine Resource Survey Center, Qinhuangdao, China
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Jiang Y, Ogunade IM, Arriola KG, Pech-Cervantes AA, Kim DH, Li X, Xue YL, Vyas D, Adesogan AT. Short communication: Effects of a physiologically relevant concentration of aflatoxin B 1 with or without sequestering agents on in vitro rumen fermentation of a dairy cow diet. J Dairy Sci 2019; 103:1559-1565. [PMID: 31785870 DOI: 10.3168/jds.2019-17318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 07/23/2019] [Accepted: 10/14/2019] [Indexed: 01/15/2023]
Abstract
Aflatoxin is a potent carcinogen commonly found in animal feeds that can impair rumen fermentation at high concentrations; however, its effects at physiologically relevant concentrations are unknown. This study examined the effects of aflatoxin B1 (AFB1), with or without bentonite clay (CL) and Saccharomyces cerevisiae fermentation product (SCFP)-based sequestering agents on in vitro rumen fermentation and digestibility of a dairy cow TMR. Corn silage-based TMR (0.5 g, 17.3% crude protein and 1.67 Mcal/kg of net energy for lactation) was incubated in a rumen fluid-buffer inoculum (1:2 ratio; 50 mL) with the following treatments: (1) no additives (control); (2) control + 0.75 µg/L AFB1 (T); (3) T + 80 mg/L sodium bentonite clay (CL; Astra-Ben-20, Prince Agri Products Inc., Quincy, IL); or (4) CL + 14 mg/L SCFP (CL+SCFP; Diamond V, Cedar Rapids, IA). Ruminal fluid was collected 3 h after the morning feeding from 3 cannulated cows fed the same TMR, and rumen fluid from individual cows was used to prepare separate inocula. Each treatment was incubated in duplicate at 39°C for 0, 4, 8, 16, and 24 h in each of 3 runs. Adding T reduced total volatile fatty acid (VFA) concentration after 4 and 8 h and molar proportion of propionate after 4 and 24 h of incubation relative to control. Adding sequestering agents (CL and CL+SCFP) with T did not affect total VFA concentration after 4 or 8 h, but increased total VFA after 16 h and tended to increase molar proportion of propionate after 24 h compared with T. At 24 h, T had lower DM digestibility and higher NH3-N concentration compared with the control. Thus, AFB1, even at very low concentration (0.75 µg/L), had detrimental effects on rumen fermentation and subsequently DM digestibility of the TMR. Adding sequestering agents did not prevent negative effects of T on rumen fermentation within 8 h of incubation; however, sequestering agents were effective after 16 h of incubation.
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Affiliation(s)
- Y Jiang
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - I M Ogunade
- Department of Animal Sciences, University of Florida, Gainesville 32611; Division of Food and Animal Science, Kentucky State University, Frankfort 40601
| | - K G Arriola
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | | | - D H Kim
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - X Li
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - Y L Xue
- Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Hohhot, 010031, China
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A T Adesogan
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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Xue YL, Zhang SX, Zheng CF, Li YF, Zhang LH, Hao YF, Wang S, Li XW. Silencing of STAT4 Protects Against Autoimmune Myocarditis by Regulating Th1/Th2 Immune Response via Inactivation of the NF-κB Pathway in Rats. Inflammation 2019; 42:1179-1189. [DOI: 10.1007/s10753-019-00978-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Li YF, Zhang SX, Ma XW, Xue YL, Gao C, Li XY, Xu AD. The proportion of peripheral regulatory T cells in patients with Multiple Sclerosis: A meta-analysis. Mult Scler Relat Disord 2018; 28:75-80. [PMID: 30572285 DOI: 10.1016/j.msard.2018.12.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 12/16/2017] [Revised: 12/04/2018] [Accepted: 12/13/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND Accumulating evidence indicates that regulatory T cells (Tregs) play an important role in the maintenance of immune tolerance. And dysfunction or deficiency of Tregs is thought to be involved in the pathogenesis of Multiple Sclerosis (MS). Nevertheless, previous studies reporting Tregs in patients were controversial due to the different markers adopted to identify Tregs. To clarify the status of Tregs in the pathogenesis of MS patients, we did a meta-analysis of the results published previously to assess the proportion of Tregs in peripheral blood (PB) in patients with MS. METHODS We systematically searched Embase, PubMed, Cochrane, Web of Knowledge, FDA.gov, and Clinical Trials.gov for the studies reporting the proportion of Tregs in MS patients. Our main endpoints were the proportion of Tregs among CD4+ T cells in PB defined by different markers. We assessed pooled data by using a random-effects model. Our meta-analysis had been registered at International Prospective Register of Systematic Reviews (PROSPERO) (number CRD42017064906). RESULTS Of 885 identified studies, a total 16 studies were selected in our analysis. There was no significant difference between MS patients and control subjects in Tregs identified by all Tregs definition methods [-0.07, (-0.46, 0.31, p = 0.706)] and Tregs defined by "CD4+ CD25+" [0.24, (-0.18, 0.65), p = 0.263]. Compared with control subjects, MS patients had a lower proportion of Tregs defined by "CD4+ CD25+ FOXP3+" [-0.75, (-0.46,0.31), p = 0.001]. CONCLUSION Under random effect model of meta-analysis, the data showed that the results of Tregs in MS were different according to the definition method; and the proportion of Tregs defined by "CD4+ CD25+ FOXP3+" was decreased in MS. That result demonstrates that FOXP3 may be a vital definition of Tregs, and Tregs defined by stricter definition methods should be involved in the pathogenic mechanisms of MS.
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Affiliation(s)
- Yu-Feng Li
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510630, China; Clinical Neuroscience Institute of Jinan University, Jinan University, Guangzhou 510630, China; Department of Neurology, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030024, China
| | - Sheng-Xiao Zhang
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Xiao-Wen Ma
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Yu-Long Xue
- Department of Cardiovascular Medicine , Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030024, China
| | - Chong Gao
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Xin-Yi Li
- Department of Neurology, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030024, China.
| | - An-Ding Xu
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510630, China; Clinical Neuroscience Institute of Jinan University, Jinan University, Guangzhou 510630, China.
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Li YF, Zhang SX, Ma XW, Xue YL, Gao C, Li XY. Levels of peripheral Th17 cells and serum Th17-related cytokines in patients with multiple sclerosis: A meta-analysis. Mult Scler Relat Disord 2017; 18:20-25. [PMID: 29141810 DOI: 10.1016/j.msard.2017.09.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [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: 06/01/2017] [Revised: 06/26/2017] [Accepted: 09/04/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND Multiple reports have described the proportion of Th17 cells in peripheral blood and serum levels of Th17-related cytokines in patients with multiple sclerosis (MS). To clarify the status of Th17 cells and Th17-related cytokines in MS patients, we did a meta-analysis of the results published previously to assess the levels of peripheral Th17 cells and serum Th17-related cytokines in patients with MS. METHODS We searched Embase, PubMed, Cochrane, Web of Knowledge, FDA.gov, and Clinical Trials.gov systematically for studies reporting the proportion of Th17 cells and the serum levels of Th17-related cytokines (IL-17, IL23) in MS patients. Our main endpoints were the proportion of Th17 cells among CD4+ T cells in peripheral blood (PB), serum IL-17 levels, and serum IL-23 levels. We assessed pooled data by using a random-effects model. It has been registered at International Prospective Register of Systematic Reviews (PROSPERO) (number CRD42017059113). RESULTS Of 560 identified studies, a total of 12 studies were selected in our analysis. Compared with control subjects, MS patients had a higher proportion of Th17 cells [1.37, (0.53, 2.21)] in PB, an elevated levels of serum IL-17 [2.48, (1.25, 3.71)] and an increased IL-23 levels in serum [2.29, (0.58, 4.00)]. CONCLUSION Under random effect model of meta-analysis, the data showed that the proportion of Th17 cells in PB and levels of serum IL-17 and IL-23 increased among MS patients compared to control subjects. This result demonstrated that Th17 cells and Th17-related cytokines may be involved in the pathogenic mechanisms of MS.
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Affiliation(s)
- Yu-Feng Li
- Department of Neurology, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, 99 Longcheng street, Taiyuan, Shanxi 030024, China
| | - Sheng-Xiao Zhang
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, Shanxi 030001, China
| | - Xiao-Wen Ma
- Department of Rheumatology, the Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, Shanxi 030001, China
| | - Yu-Long Xue
- Department of Cardiovascular Medicine, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, 99 Longcheng street, Taiyuan, Shanxi 030024, China
| | - Chong Gao
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Xin-Yi Li
- Department of Neurology, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, 99 Longcheng street, Taiyuan, Shanxi 030024, China.
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Xue YL, Wu P, Liu Y, Zhang X, Lin L, Jiang Q. Highly Efficient Near-IR Photoluminescence of Er Immobilized in Mesoporous SBA-15. Nanoscale Res Lett 2010; 5:1952-1961. [PMID: 21170408 PMCID: PMC2991226 DOI: 10.1007/s11671-010-9732-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 08/04/2010] [Indexed: 05/30/2023]
Abstract
SiO(2) mesoporous molecular sieve SBA-15 with the incorporation of erbium ions is studied as a novel type of nanoscopic composite photoluminescent material in this paper. To enhance the photoluminescence efficiency, two schemes have been used for the incorporation of Er(3+) where (1) Er(3+) is ligated with bis-(perfluoromethylsulfonyl)-aminate (PMS) forming Er(PMS)(x)-SBA-15 and (2) Yb(3+) is codoped with Er(3+) forming Yb-Er-SBA-15. As high as 11.17 × 10(-21)cm(2) of fluorescent cross section at 1534 nm and 88 nm of "effective bandwidth" have been gained. It is a 29.3% boost in fluorescent cross section compared to what has been obtained in conventional silica. The upconversion coefficient in Yb-Er-SBA-15 is relatively small compared to that in other ordinary glass hosts. The increased fluorescent cross section and lowered upconversion coefficient could benefit for the high-gain optical amplifier. Finally, the Judd-Ofelt theory has also been used for the analyses of the optical spectra of Er(PMS)(x)-SBA-15.
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Affiliation(s)
- YL Xue
- Department of Electronic Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - P Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Y Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - X Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - L Lin
- Department of Electronic Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Q Jiang
- Department of Electronic Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
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Xue YL, Zhao SF, Luo Y, Li XJ, Duan ZP, Chen XP, Li WG, Huang XQ, Li YL, Cui X, Zhong DG, Zhang ZY, Huang ZQ. TECA hybrid artificial liver support system in treatment of acute liver failure. World J Gastroenterol 2001; 7:826-9. [PMID: 11854910 PMCID: PMC4695603 DOI: 10.3748/wjg.v7.i6.826] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess the efficacy and safety of TECA type hybr id artificial liver support system (TECA-HALSS) in providing liver function of detoxification, metabolism and physiology by treating the patients with acute liv er failure (ALF).
METHODS: The porcine liver cells (1-2) × 1010 were separated from the Chinese small swine and cultured in the bioreactor of TECA-BALSS at 37.0 °C and circulated through the outer space of the hollow fiber tubes in BALSS. The six liver failure patients with various degree of hepatic coma were treated by TECA-HALSS and with conventional medicines. The venous plasma of the patients was separated by a plasma separator and treated by charcoal adsorbent or plasma exchange. The plasma circulated through the inner space of the hollow fiber tubes of BALSS and mixed with the patients’ blood cells and flew back to their blood circulation. Some small molecular weight substances were exchanged between the plasma and porcine liver cells. Each treatment lasted 6.0-7.0 h. Physiological and biochemical parameters were measured before, during and after the treatment.
RESULTS: The average of porcine liver cells was (1.0-3.0) × 1010 obtained from each swine liver using our modified enzymatic digestion method. The survival rate of the cells was 85%-93% by trypan blue stain and AO/PI fluorescent stain. After cultured in TECA-BALSS bioreactor for 6 h, the survival rate of cells still remained 70%-85%. At the end of TECA-HALSS treatment, the levels of plasma NH3, ALT, TB and DB were significantly decreased. The patients who were in the state of drowsiness or coma before the treatment improved their appetite significantly and regained consciousness, some patients resumed light physical work on a short period after the treatment. One to two days after the treatment, the ratio of PTA increased warkedly. During the treatment, the heart rates, blood pressure, respiration condition and serum electrolytes (K+, Na+ and Cl-) were stable without thrombosis and bleeding in all the six patients.
CONCLUSION: TECA-HALSS treatment could be a rapid, safe and efficacious method to provide temporary liver support for patients with ALF.
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Affiliation(s)
- Y L Xue
- Chinese PLA General Hospital, Beijing 100853, China.
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Abstract
AIM: To evaluate the efficacy and safety of the TECA-I bioartificial liver support system (BALSS) in treating canines with acute liver failure (ALF).
METHODS: Ten canines with ALF induced by 80% liver resection received BALSS treatment (BALSS group). Blood was perfused through a hollow fiber tube containing 1 × 1010 porcine hepatocytes. Four canines with ALF were treated with BALSS without porcine hepatocytes (control group), and five canines with ALF received drug treatment (drug group). Each treatment lasted 6 h.
RESULTS: BALSS treatment yielded beneficial effects for partial liver resection-induced ALF canines with survival and decreased plasma ammonia, ALT, AST and BIL. There was an obvious decrease in PT level and increase in PA level, and there were no changes in the count of lymphocytes, immunoglobulins (IgA, IgG and IgM) and complement (C3 and C4) levels after BALSS treatment. In contrast, for the canines with ALF in non-hepatocyte BALSS group (control group) and drug group, there were no significant changes in ammonia, ALT, AST, BIL, PT and PA levels. ALF canines in BALSS group, control group and drug group lived respectively an average time of 108.0 h ± 12.0 h, 24.0 h ± 6.0 h and 20.4 h ± 6.4 h, and three canines with ALF survived in BALSS group.
CONCLUSION: TECA-I BALSS is efficacious and safe for ALF canines induced by parcial liver resection.
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Affiliation(s)
- X P Chen
- Institute of Basic Medical Sciences,PLA General Hospital, Beijing 100853, China
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Li CH, Luo Y, Li XJ, Cui X, Xue YL, Pan CY. [Study of the growth and secretion of microencapsulated pancreatic B cell line in vitro]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2001; 17:93-96. [PMID: 21171456] [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: 05/30/2023]
Abstract
AIM To study the growth and secretion of pancreatic B cell line BTC6-F7 in the alginate polylysine-alginate (APA) microcapsules and explore the possibility of utilizing it as bioartificial islets. METHODS Microencapsulated BTC6-F7 cells prepared with electric droplet generator were cultured in vitro, and the growth and insulin secretion of them were measured periodically. RESULTS Over the 90-day observation period, BTC6-F7 cells were able to grow and survive as cell clusters in the microcapsules and finally fulfill the capsules. But the microcapsules remained well after the long-time culture. The average total cell number per capsule were increasing with time, but the cell viability was decreasing. The changes of insulin secretion and average live cell number per capsule were in a same manner: for the first two weeks they increased rapidly and then maintained in a relatively constant levels for the rest time. CONCLUSION The microencapsulated pancreatic B cells prepared by us could survive, grow and secretion for a long time. This has made a basis for further development of bioartificial islets, and also can be used to study the mechanism and therapy of diabetes mellitus.
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Affiliation(s)
- C H Li
- Institute of basic medical sciences, General Hospital of PLA, Bejing, 100853
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Xue YL, Wang ZF, Zhong DG, Cui X, Li XJ, Ma XJ, Wang LN, Zhu K, Sun AM. Xenotransplantation of microencapsulated bovine chromaffin cells into hemiparkinsonian monkeys. Artif Cells Blood Substit Immobil Biotechnol 2000; 28:337-45. [PMID: 10928703 DOI: 10.3109/10731190009119363] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This study examines the effects of xenografts of microencapsulated bovine chromaffin cells (BCCs) on the rotational behavior of hemiparkinsonian monkey recipients. In addition, it determines the content of monoamine neurotransmitters and their major metabolites in the neostriatum in hemiparkinsonian monkeys. The hemiparkinsonian model in monkeys was induced by a unilateral intracarotid injection of methyl-phenyl-tetrahydropyridine (MPTP). Unencapsulated BCCs, BCCs microencapsulated in alginate-polylysine-alginate (ALA) membranes as well as empty microencapsules were grafted into the neostriatum of the hemiparkinsonian monkeys. Following the transplantation the hemiparkinsonian symptoms subsided and the number of rotations induced by apomorphine decreased for up to nine months in the group of recipients grafted with microencapsulated BCCs, while only a temporary improvement (one month) was detected in the recipients of the unencapsulated BCCs. No change was observed in the recipients of empty microencapsules. Dopamine and its metabolites were found considerably depleted in the MPTP-lesioned side versus the unlesioned side of the neostriatum in the hemiparkinsonian monkeys(P<0.05).
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Affiliation(s)
- Y L Xue
- Institute of Basic Medical Sciences, PLA General Hospital, Beijing, China
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Shang DY, Xue YL. Myocardial preservation in China: a brief review and analysis. Chin Med J (Engl) 1986; 99:693-4. [PMID: 3100226] [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: 01/04/2023] Open
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