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Lyu S, Liu Q, Yuen HY, Xie H, Yang Y, Yeung KWK, Tang CY, Wang S, Liu Y, Li B, He Y, Zhao X. A differential-targeting core-shell microneedle patch with coordinated and prolonged release of mangiferin and MSC-derived exosomes for scarless skin regeneration. Mater Horiz 2024. [PMID: 38669042 DOI: 10.1039/d3mh01910a] [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] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Microneedles for skin regeneration are conventionally restricted by uncontrollable multi-drug release, limited types of drugs, and poor wound adhesion. Here, a novel core-shell microneedle patch is developed for scarless skin repair, where the shell is composed of hydrophilic gelatin methacryloyl (GelMA) loaded with mangiferin, an anti-inflammatory small molecule, and the core is composed of hydrophobic poly (lactide-co-propylene glycol-co-lactide) dimethacrylates (PGLADMA) loaded with bioactive macromolecule and human mesenchymal stromal cell (hMSC)-derived exosomes. This material choice provides several benefits: the GelMA shell provides a swelling interface for tissue interlocking and rapid release of mangiferin at an early wound healing stage for anti-inflammation, whereas the PGLADMA core offers long-term encapsulation and release of exosomes (30% release in 3 weeks), promoting sustained angiogenesis and anti-inflammation. Our results demonstrate that the core-shell microneedle possesses anti-inflammatory properties and can induce angiogenesis both in vitro in terms of macrophage polarization and tube formation of human umbilical vein endothelial cells (HUVECs), and in vivo in terms of anti-inflammation, re-epithelization, and vessel formation. Importantly, we also observe reduced scar formation in vivo. Altogether, the degradation dynamics of our hydrophilic/hydrophobic materials enable the design of a core-shell microneedle for differential and prolonged release, promoting scarless skin regeneration, with potential for other therapies of long-term exosome release.
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Affiliation(s)
- Shang Lyu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China.
| | - Qi Liu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
| | - Ho-Yin Yuen
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
| | - Huizhi Xie
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Yuhe Yang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
| | - Kelvin Wai-Kwok Yeung
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Chak-Yin Tang
- Department of Industrial & Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
| | - Shuqi Wang
- Tianfu Jincheng Laboratory, City of Future Medicine, Chengdu 641400, China
- Clinical Research Center for Respiratory Disease, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Yaxiong Liu
- Jihua Laboratory, Foshan, Guangdong 528000, China
| | - Bin Li
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, School of Biology & Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu 215006, China.
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu 215006, China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China.
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR 999077, China.
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
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Li SS, Liu Z, Lyu S, Wang S, Li FQ. [Public health risk and prevention and control of sporotrichosis]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1999-2004. [PMID: 38129160 DOI: 10.3760/cma.j.cn112338-20230608-00357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Sporotrichosis, a fungal infection caused by Sporothrix species, can greatly lead to chronic inflammation of the skin, mucosa, and lymphatic vessels and disseminate systemically sometimes, even threatening life. It is known that Sporothrix is distributed worldwide, while in China, most of the cases were reported in northeast China and parts of south China. Sporothrix globosa is the main source of infection, and other regions may lack relevant awareness and attention to the disease, making it a public health challenge in China. Thus, it is important to understand its epidemiology and public health risks to prevent and control the disease properly.
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Affiliation(s)
- S S Li
- Dermatology Department of the Second Hospital of Jilin University, Changchun 130041, China
| | - Z Liu
- Dermatology Department of the Second Hospital of Jilin University, Changchun 130041, China
| | - S Lyu
- Dermatology Department of the Second Hospital of Jilin University, Changchun 130041, China
| | - S Wang
- Dermatology Department of the Second Hospital of Jilin University, Changchun 130041, China
| | - F Q Li
- Dermatology Department of the Second Hospital of Jilin University, Changchun 130041, China
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Lyu S, Dong Z, Xu X, Bei HP, Yuen HY, James Cheung CW, Wong MS, He Y, Zhao X. Going below and beyond the surface: Microneedle structure, materials, drugs, fabrication, and applications for wound healing and tissue regeneration. Bioact Mater 2023; 27:303-326. [PMID: 37122902 PMCID: PMC10140753 DOI: 10.1016/j.bioactmat.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 03/11/2023] [Accepted: 04/02/2023] [Indexed: 05/02/2023] Open
Abstract
Microneedle, as a novel drug delivery system, has attracted widespread attention due to its non-invasiveness, painless and simple administration, controllable drug delivery, and diverse cargo loading capacity. Although microneedles are initially designed to penetrate stratum corneum of skin for transdermal drug delivery, they, recently, have been used to promote wound healing and regeneration of diverse tissues and organs and the results are promising. Despite there are reviews about microneedles, few of them focus on wound healing and tissue regeneration. Here, we review the recent advances of microneedles in this field. We first give an overview of microneedle system in terms of its potential cargos (e.g., small molecules, macromolecules, nucleic acids, nanoparticles, extracellular vesicle, cells), structural designs (e.g., multidrug structures, adhesive structures), material selection, and drug release mechanisms. Then we briefly summarize different microneedle fabrication methods, including their advantages and limitations. We finally summarize the recent progress of microneedle-assisted wound healing and tissue regeneration (e.g., skin, cardiac, bone, tendon, ocular, vascular, oral, hair, spinal cord, and uterine tissues). We expect that our article would serve as a guideline for readers to design their microneedle systems according to different applications, including material selection, drug selection, and structure design, for achieving better healing and regeneration efficacy.
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Affiliation(s)
- Shang Lyu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, PR China
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, PR China
| | - Zhifei Dong
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, PR China
- Faculty of Science, University of Waterloo, Waterloo, Ontario, Canada
| | - Xiaoxiao Xu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, PR China
- Faculty of Science, University of Waterloo, Waterloo, Ontario, Canada
| | - Ho-Pan Bei
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, PR China
| | - Ho-Yin Yuen
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, PR China
| | - Chung-Wai James Cheung
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, PR China
| | - Man-Sang Wong
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, PR China
- Corresponding author.
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, PR China
- Corresponding author.
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, PR China
- Corresponding author.
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Lu X, Wang R, Li J, Lyu S, Zhang J, Wang Q, Chi W, Zhong R, Chen C, Wu X, Hu R, You Z, Mai Y, Xie S, Lin J, Zheng B, Zhong Q, He J, Liang W. 144P Exposure-lag response of surface net solar radiation on lung cancer incidence: A worldwide interdisciplinary and time-series study. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00399-4] [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: 04/03/2023]
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Zhu B, Tian H, Song FJ, Li DZ, Liu SH, Dong JH, Lyu S, You SL. [Abernethy malformation associated with COACH syndrome in a patient with TMEM67 mutation: a case report]. Zhonghua Nei Ke Za Zhi 2022; 61:1052-1055. [PMID: 36008300 DOI: 10.3760/cma.j.cn112138-20220107-00019] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- B Zhu
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - H Tian
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - F J Song
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - D Z Li
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - S H Liu
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - J H Dong
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - S Lyu
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
| | - S L You
- Department of Hepatology, the Fifth Medical Center,Chinese PLA General Hospital, Beijing 100039, China
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Zhang Q, Luo Y, Liang B, Suo D, Lyu S, Wang Y, Zhao X. An anti-bacterial and anti-cancer fibrous membrane with multiple therapeutic effects for prevention of pancreatic cancer recurrence. Biomater Adv 2022; 137:212831. [PMID: 35929264 DOI: 10.1016/j.bioadv.2022.212831] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 06/15/2023]
Abstract
Adjuvant systemic chemotherapy with gemcitabine (GEM) is recognized as the standard of care to improve the prognosis of patients with resected pancreatic cancer (PC); however, it is greatly limited by poor absorption of chemotherapy agents. Moreover, surgical site infection and Gammaproteobacteria-induced GEM resistance further decrease the chemotherapy efficacy and increase the risk of recurrence and even mortality. Here, we develop an implantable anti-bacterial and anti-cancer fibrous membrane (AAFM) to inhibit PC recurrence in a well-coordinated manner. Our AAFM can be readily prepared via simple co-electrospinning of GEM and poly-L-lactic acid (PLLA) and subsequent tannic acid (TA)-mediated in-situ generation of silver nanoparticles (AgNPs). The resultant membrane presents highly porous fibrous morphology and appropriate mechanical performance. Most importantly, we find the surface-deposited TA/AgNP complexes can exert multiple therapeutic effects: (1) they can act as a fence to extend GEM diffusion route, achieving a sustained drug release; (2) they can fight the pathogenic microorganisms in the local microenvironment and prevent infectious complications and alleviate Gammaproteobacteria-induced chemotherapy resistance; (3) they can combat residual cancer cells to synchronously strengthen the effectiveness of GEM-based chemotherapy. Altogether, our AAFM provides a proof-of-concept demonstration of the integrated anti-cancer and anti-bacterial strategy for enhanced therapeutic efficacy and will inspire the design of other high-performance implants for prevention of tumor relapse.
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Affiliation(s)
- Qiang Zhang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Yang Luo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Bo Liang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Di Suo
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Shang Lyu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Yi Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
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Lyu S, Ling L, Chen X, Chen S, Zhu SP, Lin W, Ding GX, Lyu R. [The correlation between blood glucose level and muscle mass, strength and function in an elderly population]. Zhonghua Nei Ke Za Zhi 2022; 61:390-396. [PMID: 35340185 DOI: 10.3760/cma.j.cn112138-20210823-00579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the correlation between blood glucose levels and the three factors of sarcopenia (muscle mass, strength and function) in older Chinese community dwellers. Methods: This is a retrospective study conducted by collecting the data of patients in Jiangsu Huaqiao Road Community Health Service Center from 2018 to 2019. Two hundred and fifty people aged 60 years or elder were selected. Among them, 101 were men and 149 were women. According to the American Diabetes Association diagnostic criteria for diabetes mellitus in 2018, they were divided into normal glucose tolerance (NGT) group, pre-diabetes group and diabetes group. The patients were assessed for sarcopenia as well. Results: Compared with those in the NGT group, muscle mass and upper limb muscle strength did not change in the diabetic group, but lower limb muscle strength and body function [walking speed, balance, short physical performance battery (SPPB)] decreased significantly in the diabetic group. Pearson correlation analyses showed that fasting plasma glucose(FPG) was negatively correlated with walking speed (r=-0.248, P=0.001), three-pose balance (r=-0.166, P=0.013) and SSPB (r=-0.213, P=0.001). Glycosylated hemoglobin A1c(HbA1c) was positively correlated with sitting and standing time (r=0.205, P=0.002), and negatively correlated with three-pose balance (r=-0.186, P=0.006) and SSPB (r=-0.154, P=0.024). Multiple regression analyses showed that FPG was negatively associated with walking speed (β=-0.125, P=0.005) and SPPB (β=-0.034, P=0.012), and that HbA1c was positively associated with sitting and standing time (β= 0.218, P =0.006) and negatively associated with three-pose balance (β=-0.143, P=0.012), and SPPB (β=-0.117, P =0.036). Conclusions: There is no significant correlation between blood glucose levels and muscle mass in the elderly; however, FPG is closely correlated with gait speed, and HbA1c is closely correlated with muscle strength of lower limbs and balance ability in the elderly.
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Affiliation(s)
- S Lyu
- Department of Gerontology, the First Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
| | - L Ling
- Department of Gerontology, Suzhou Ninth People's Hospital, Suzhou 215200, China
| | - X Chen
- Department of Gerontology, the First Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
| | - S Chen
- Department of Gerontology, the First Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
| | - S P Zhu
- Department of Gerontology, the First Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
| | - W Lin
- Department of Gerontology, the First Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
| | - G X Ding
- Department of Gerontology, the First Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
| | - R Lyu
- Department of Gerontology, Suzhou Ninth People's Hospital, Suzhou 215200, China
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Fernandes A, Gupta S, Cao S, Maysel-Auslender S, Dunham D, Lyu S, Sindher S, Manohar M, Maecker H, Nadeau K. P032 STUDIES ON CASHEW AND SHRIMP-ORAL IMMUNOTHERAPY-INDUCED CHANGES IN ALLERGEN-REACTIVE CD4+ T CELLS. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.077] [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: 11/17/2022]
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Lyu S, Zhu J, Yu L, Yang Y. Predictive performance of different bleeding risk scores in patients with atrial fibrillation and acute coronary syndrome or undergoing percutaneous coronary intervention. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0566] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Standard scoring system for bleeding risk assessment has not been developed in patients with atrial fibrillation (AF) and acute coronary syndrome (ACS) or undergoing percutaneous coronary intervention (PCI). The study aims to evaluate the predictive value of the HAS-BLED, ORBIT, ARTIA, PARIS, and PRECISE-DEAPT score in patients with AF and ACS/PCI who received both anticoagulant and antiplatelet therapy.
Methods
A total of 930 patients with AF and ACS/PCI receiving both anticoagulant and antiplatelet therapy were consecutively recruited and followed up for 1 year. The primary endpoint was defined according to the bleeding academic research consortium (BARC) criteria as major (BARC 3a, 3b, 3c, and 5) and any bleeding (BARC 2, 3a, 3b, 3c, and 5). The secondary endpoints included major or minor bleeding according to TIMI criteria. Univariate and multivariate logistic regression were performed to evaluate the association between bleeding risk scores and outcomes. Receiver operating characteristic (ROC) curves were constructed and c-statistics were calculated to evaluate the predictive performance of different bleeding risk scores.
Results
BARC class ≥2 bleedings occurred in 36 patients (3.9%), while BARC class ≥3 bleedings were seen in 134 patients (14.4%). The HAS-BLED, ORBIT, ARTIA, PARIS, and PRECISE-DEAPT score were significantly associated with incidences of BARC class ≥2 and ≥3 bleedings during 1-year follow-up (all p<0.05). The ROC analysis showed that the predictive performance of the five bleeding risk scores for BARC class ≥3 bleedings were low-to-moderate [c-statistic: HASBLED 0.584 (0.552–0.616), ATRIA 0.624 (0.592–0.655), ORBIT 0.623 (0.591–0.654), PARIS 0.633 (0.601–0.664), PRECISEDAPT 0.616 (0.584–0.647)]. Multivariable logistic regression indicated that previous bleeding history and hemoglobin were independent predictors of BARC class ≥3 bleedings. Compared to the HAS-BLED score, the model constructed by previous bleeding history and hemoglobin displays a significant improvement in bleeding risk prediction (0.704 vs. 0.584, p=0.013).
Conclusions
In patients with AF and ACS/PCI receiving both anticoagulant and antiplatelet therapy, the HAS-BLED, ORBIT, ARTIA, PARIS, and PRECISE-DEAPT score displayed low-to-moderate performance for predicting BARC class ≥3 bleedings during 1-year follow-up. More accurate scoring systems for bleeding risk evaluation should be developed for these patients in the future.
Funding Acknowledgement
Type of funding sources: None. Receiver operating characteristic curve
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Affiliation(s)
- S Lyu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - J Zhu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - L Yu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - Y Yang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
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Lyu S, Zhu J, Yu L, Yang Y. Association between plasma big endothelin-1 level and the severity of coronary artery disease in patients with non-ST segment-elevated myocardial infarction. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1378] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
This study aimed to evaluate the association between plasma big endothelin-1 (ET-1) level and the severity of coronary artery disease assessed by the SYNTAX score (SS) in patient with non-ST segment-elevated myocardial infarction (NSTEMI).
Methods
A total of 766 patients with NSTEMI undergoing coronary angiography were recruited. Patients were divided into divided into three groups: low SS (SS ≤22), intermediate SS (23–32) and high SS group (SS >32). Spearman correlation, smooth curve fitting, logistic regression and Receiver operating characteristic (ROC) curve analysis were performed to evaluated the association between plasma big ET-1 level and the SS.
Results
There was a significant correlation between the big ET-1 and the SS (r=0.378, p<0.001). Smoothing curve indicated a positive correlation between plasma big ET-1 level and the SS, after adjustment for potential confounders. The ROC curve analysis showed that the area under the curve was 0.695 (0.661–0.727) and the optimal cutoff of plasma big ET-1 level were 0.35pmol/l, with a sensitivity of 68.9% and a specificity of 62.9%. Logistic regression showed that elevated big ET-1 was an independent predictor of intermediate-high SS in patients with NSTEMI, no matter entered as a continuous variable [OR (95% CI): 1.110 (1.053–1.170), p<0.001] or as a categorical variable [OR (95% CI): 2.873 (2.016–4.094), p<0.001]. The association between big ET-1 and intermediate-high SS was consistent across subgroups without significant interactions.
Conclusion
In patients presenting with NSTEMI, plasma big ET-1 level was significantly correlated with the SS. Elevated plasma big ET-1 level was an independent predictor for intermediate-high SS.
Funding Acknowledgement
Type of funding sources: None. ROC of big ET-1 for high SYNTAX score
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Affiliation(s)
- S Lyu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - J Zhu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - L Yu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - Y Yang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
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Lyu S, Yu L, Zhu J, Yang Y. Incremental predictive value of adding the CHA2DS2-VASc score to the GRACE score for in-hospital mortality in patients with ST-segment elevation myocardial infarction. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1463] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Objective
The Global Registry of Acute Coronary Events (GRACE) score is recommended for risk stratification for patients with ST-segment elevation myocardial infarction (STEMI) by clinical guidelines. Data about comorbidities were not incorporated in the GRACE score. This study aimed to evaluate the incremental predictive value of adding the CHA2DS2-VASc score to the GRACE score for in-hospital mortality in patients with STEMI.
Methods
7476 patients with STEMI were recruited and divided into five groups according to the CHA2DS2-VASc score (1, 2, 3, 4 and ≥5 points) at admission. The primary outcome was defined as in-hospital mortality, while the secondary outcomes were recurrent MI, stroke and major adverse cardiovascular events (MACE) during hospitalization. Univariate and multivariate logistic regression were performed to evaluate the association between the CHA2DS2-VASc score and outcomes. Incremental predictive performance of adding the CHA2DS2-VASc score to the GRACE score were evaluated through analysis of the receiver operating characteristic (ROC) curves, net reclassification improvement (NRI) and integrated discrimination improvement (IDI).
Results
With the increase of CHA2DS2-VASc score, patients with STEMI tended to have more comorbidities, receive less evidence-based treatments and carry worse in-hospital outcomes. Multivariate logistic regressions demonstrated that the CHA2DS2-VASc score was an independent predictor for in-hospital mortality [OR (95% CI): 1.320 (1.238–1.407), p<0.001], recurrent myocardial infarction [OR (95% CI): 1.233 (1.086–1.401), p=0.001], stroke [OR (95% CI): 1.433 (1.207–1.702), p<0.001] and MACE [OR (95% CI): 1.146 (1.088–1.207), p<0.001]. The c statistic value of combining the GRACE score with the CHA2DS2-VASc score was significantly higher than that of the GRACE score alone in predicting in-hospital mortality (0.784, 95% CI: 0.774–0.793 vs. 0.769, 95% CI: 0.760–0.779, z=4.180, p<0.001). The addition of the CHA2DS2-VASc score to the GRACE score resulted in significantly improved predictive performance for in-hospital mortality, with a NRI of 0.356 (95% CI: 0.280–0.432, p<0.001) and a IDI of 0.013 (95% CI: 0.009–0.018, p<0.001).
Conclusion
The CHA2DS2-VASc score was an independent predictor of in-hospital outcomes in patients with STEMI. Compared to the GRACE score alone, the addition of the CHA2DS2-VASc score to the GRACE score improved the predictive performance for in-hospital mortality in patients STEMI.
Funding Acknowledgement
Type of funding sources: None. Receiver operating characteristic curve
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Affiliation(s)
- S Lyu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - L Yu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - J Zhu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
| | - Y Yang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Emergency and Critical Care Center, Beijing, China
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Ma XT, Cheng YJ, Lyu S, Sun Y, Shen H, Wang ZJ, Liu XL, Liu YY, Shi DM, Zhou YJ. [Literature review on the risk assessment and timing of aortic valve replacement for asymptomatic severe aortic stenosis]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:528-534. [PMID: 34034392 DOI: 10.3760/cma.j.cn112148-20200720-00573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X T Ma
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - Y J Cheng
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - S Lyu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - Y Sun
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - H Shen
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - Z J Wang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - X L Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - Y Y Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - D M Shi
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - Y J Zhou
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing 100029, China
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Lyu S, Ding R, Yang S, Chen W, Rao Y, OuYang H, Liu P, Feng Y. Establishment of a clinical diagnostic model for gouty arthritis based on the serum biochemical profile: A case-control study. Medicine (Baltimore) 2021; 100:e25542. [PMID: 33879701 PMCID: PMC8078334 DOI: 10.1097/md.0000000000025542] [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: 11/24/2020] [Accepted: 03/24/2021] [Indexed: 01/04/2023] Open
Abstract
The disease progression of gouty arthritis (GA) is relatively clear, with the 4 stages of hyperuricemia (HUA), acute gouty arthritis (AGA), gouty arthritis during the intermittent period (GIP), and chronic gouty arthritis (CGA). This paper attempts to construct a clinical diagnostic model based on blood routine test data, in order to avoid the need for bursa fluid examination and other tedious steps, and at the same time to predict the development direction of GA.Serum samples from 579 subjects were collected within 3 years in this study and were divided into a training set (n = 379) and validation set (n = 200). After a series of multivariate statistical analyses, the serum biochemical profile was obtained, which could effectively distinguish different stages of GA. A clinical diagnosis model based on the biochemical index of the training set was established to maximize the probability of the stage as a diagnosis, and the serum biochemical data from 200 patients were used for validation.The total area under the curve (AUC) of the clinical diagnostic model was 0.9534, and the AUCs of the 5 models were 0.9814 (Control), 0.9288 (HUA), 0.9752 (AGA), 0.9056 (GIP), and 0.9759 (CGA). The kappa coefficient of the clinical diagnostic model was 0.80.This clinical diagnostic model could be applied clinically and in research to improve the accuracy of the identification of the different stages of GA. Meanwhile, the serum biochemical profile revealed by this study could be used to assist the clinical diagnosis and prediction of GA.
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Affiliation(s)
- Shang Lyu
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine
| | - Ruowen Ding
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine
| | - Shilin Yang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine
| | - Wanyuan Chen
- Department of Pathology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou
| | - Yi Rao
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine
| | - Hui OuYang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine
- State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, Nanchang, China
| | - Peng Liu
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine
| | - Yulin Feng
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine
- State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, Nanchang, China
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Lyu S, Chen HC, Lee TSH, Li Y, Cho CJ, Liu FC, Cheng CY, Chu SJ, Kuo SY, Chang DM, Lu CC. FRI0251 COMBINATION OF COMPUTED TOMOGRAPHY SCAN AND SERUM MYOSITIS SPECIFIC/ASSOCIATED AUTOANTIBODIES HELPS EARLY IDENTIFY AND TREAT PATIENTS WITH IPAF AND CTD-ILD. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.5594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Interstitial lung diseases (ILD) could originate from idiopathic cause or secondary to connective tissue diseases (CTD). The most common causes of CTD associated ILD (CTD-ILD) include mixed connective tissue disease, systemic sclerosis (SSc), inflammatory myositis such as polymyositis (PM) and dermatomyositis (DM). Our preliminary data had demonstrated that ILD is not uncommon in patients with rheumatoid arthritis (RA) and Sjogren’s syndrome (SS) in Asia. Myositis-specific autoantibodies (MSAs) and myositis associate autoantibodies (MAAs) have been used for the early diagnosis of PM/DM and could be noticed in patients with idiopathic ILD. Our previous data also had identified that MSA/MAA were detected quite often in patients with CTD-ILD in addition to inflammatory myositis. Nonetheless, a specific group of ILD patients like interstitial pneumonia with autoimmune features (IPAF) are still challenging for pomologists, rheumatologist and radiologists, either in accurate diagnosis or treatment.Objectives:We aimed to identify the prevalence of serum MSA/MAAs and clinical diagnosis on imaging in patients with IPAF and CTD-ILD and define the correlation between MSA/MAA and clinical imaging features.Methods:Patients who had been suspected with autoimmune rheumatic diseases in the presence of interstitial lung diseases were included in this prospective study at a single medical center in Taiwan between February 2018 and November 2019. All enrolled patients had experienced clinical symptoms of ILD and been identified abnormalities on the chest plain films. All patients were inspected by both pulmonologists and rheumatologist. Computed tomography scans of chest had been reviewed by at least two pulmonary radiologists. Serological immunotherapy strips were performed to detect MSA/MAAs. Correlation analysis was performed among the different collected variables.Results:870 patients were reviewed by both pulmonologists and rheumatologists and received blood sampling including autoantibody profiling and MSA/MAA tests. The clinical diagnosis of CTD-ILD or IPAF were confirmed in 603 patients, who received 1078 chest CT scan due to clinically suspected CTD-ILD or IPAF. 33 patients received lung biopsies since other CTD-ILD or IPAF patients hesitate to receive invasive procedures. 78 patients had been admitted to intensive care units and received mechanical ventilation and were not suitable for lung biopsies. 22 of 33 patients received more than twice lung biopsies due to challenging diagnosis. 6 patients with CTD-ILD or IPAF had received extracorporeal membrane oxygenation (ECMO) due to ILD with secondary pulmonary infection and acute respiratory distress syndrome. The most commom detected MSA/MAA were anti-Ro-52 (27%), followed by anti-Ku (3.9%), and anti-Mi-2 (3.6%).SS is the most common rheumatic disease in patients with CTD-ILD. MSA/MAAs were identified in patients with IPAF (36.4 %) in the absence of specific rheumatic diseases. Anti-nuclear antibody (27.4%), rheumatoid factor immunoglobulin M (21.6%) and anti-Ro (13.7%) were the most common autoantibodies identified in patients with IPAF. Anti-Ro-52 was positively corelated with nonspecific interstitial pneumonia in patients with CTD-ILD or IPAF, Phi= 0.371 and 0.326, both p < 0.001, respectively.Conclusion:Early diagnosis of CTD-ILD and IPAF is still challenging for both pulmonologists, rheumatologists and radiologists. Identifying how serum MSA/MAAs contribute clinical manifestations on chest CT imaging is warranted and help clinical physicians and patients recognize the necessity of lung biopsy to reduce comorbidity.References:[1]Jee AS, et al. J Clin Med 2017[2]Wilfong EM, et al. Arthritis Rheumatol 2018[3]Sambataro G, et al. Eur Respir Rev 2018Disclosure of Interests:None declared
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Lyu S, Ding R, Liu P, OuYang H, Feng Y, Rao Y, Yang S. LC-MS Analysis of Serum for the Metabolomic Investigation of the Effects of Pulchinenoside b4 Administration in Monosodium Urate Crystal-Induced Gouty Arthritis Rat Model. Molecules 2019; 24:molecules24173161. [PMID: 31480258 PMCID: PMC6749452 DOI: 10.3390/molecules24173161] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/18/2019] [Accepted: 08/28/2019] [Indexed: 02/07/2023] Open
Abstract
Gouty arthritis (GA) is commonly caused by deposition of monosodium urate (MSU) crystals within the joint capsule, bursa, cartilage, bone, or other periarticular tissues after chronic hyperuricemia. Clinically, GA is characterized by acute episodes of joint inflammation, which is most frequently encountered in the major joints, and also has a significant impact on quality of life. Pulchinenoside b4(P-b4) has a wide range of biological activities, including antitumor, anti-inflammatory, antiviral and immunomodulatory activities. Currently, the anti-GA activity and metabolomic profiles after being treated by P-b4 have not been reported. In this paper, for the first time, we have performed a non-targeted metabolomics analysis of serum obtained from an MSU crystal-induced GA rat model intervened by P-b4, using ultra-performance liquid chromatography coupled to quadrupole time-of-flight tandem mass spectrometry. In this study, the main pharmacodynamics of different dosing methods and dosages of P-b4 was firstly investigated. Results have shown that P-b4 possesses high anti-inflammatory activity. These results demonstrated changes in serum metabolites with 32 potential biomarkers. Arachidonic acid, sphingolipid, and glycerophospholipid metabolism are considered to be the most relevant metabolic pathway with P-b4 treatment effect in this study. Moreover, the changes of metabolites and the self-extinction of model effects within 24 h reveals important information for GA diagnostic criteria: The regression of clinical symptoms or the decline of some biochemical indicators cannot be regarded as the end point of GA treatment. Furthermore, our research group plans to conduct further metabolomics research on the clinical course of GA.
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Affiliation(s)
- Shang Lyu
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China.
| | - Ruowen Ding
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China
| | - Peng Liu
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China
| | - Hui OuYang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China
- State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, Nanchang 330006, China
| | - Yulin Feng
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China.
- State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, Nanchang 330006, China.
| | - Yi Rao
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China.
| | - Shilin Yang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China
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Lyu S, Yang SL, Rao Y, Feng YL. [Application of metabolomics and related technologies in research and development field of traditional Chinese medicine]. Zhongguo Zhong Yao Za Zhi 2019; 43:4182-4191. [PMID: 30583615 DOI: 10.19540/j.cnki.cjcmm.20180709.005] [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] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Indexed: 11/18/2022]
Abstract
Internal environment of metabolism of traditional Chinese medicine (TCM) is a dynamic process, which is in line with the "holistic-dynamic-comprehensive-analytic" characteristics of metabonomics, therefore metabonomics have a unique advantage to reveal the metabolic pattern of TCM. The application of metabonomics in TCM has great practical significance in understanding the pharmacodynamic/toxic effect material basis, mechanisms and guiding for determination of dosage and treatment course; At the same time, the scientific compatibility of TCM prescription, the germplasm resources of TCM and the preclinical safety/toxicity can be widely researched. At present, metabolomics has become a leading technology in many industries and fields including the research and development of TCM. The core of metabolomics is analytical technology, because comprehensive metabolite profiles or accurate identification of known metabolites can be obtained from complex biological samples only by appropriate analytical techniques. At the same time, a series of bioinformatics/chemical informatics/stoichiometry methods are needed to process the data, so as to obtain the potential law and information in the mass data. In this paper, the concept of metabolomics, relevant analytical techniques, data processing methods and applications were explained and analyzed clearly. In addition, the core problems and countermeasures of metabolomics were summarized, and the future development of metabolomics was prospected as well.
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Affiliation(s)
- Shang Lyu
- Jiangxi University of Traditional Chinese Medicine, Nanchang 330000, China
| | - Shi-Lin Yang
- Jiangxi University of Traditional Chinese Medicine, Nanchang 330000, China
| | - Yi Rao
- National Pharmaceutical Engineering Center for Preparation of Chinese Herbal Medicine, Nanchang 330006, China
| | - Yu-Lin Feng
- National Pharmaceutical Engineering Center for Preparation of Chinese Herbal Medicine, Nanchang 330006, China
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Shen H, Yang LX, Wang ZJ, Ji Z, Liu B, Li XQ, Jia SB, Yang Q, Lyu S, Zhou YJ. [Efficacy and safety of active transfer of plaque versus provisional stenting with drug-eluting stents for the treatment of coronary bifurcation lesions]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:549-553. [PMID: 31365996 DOI: 10.3760/cma.j.issn.0253-3758.2019.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the efficacy and safety of active transfer of plaque (ATP) versus provisional stenting (PS) with drug-eluting stents (DES) for the treatment of coronary bifurcation lesions. Methods: A total of 1 136 patients with bifurcation lesions hospitalized in 6 selected hospitals between January 2010 and January 2014 were included in this prospective observational trial, patients were divided into either ATP (n=560) or PS group (n=576) accordingly. The primary endpoint was target lesion revascularization within 1 year, and the second endpoints were all-cause death, cardiogenic death, myocardial infarction, stent thrombosis, stroke, recurrent angina within 1 year. Results: There were no significant differences in age, sex, hypertension, diabetes, hyperlipidemia and smoking history between the two groups (P>0.05). The incidence of TIMI blood flow <3 grade in the side branch (1.6%(9/560) vs. 7.5% (43/576), P<0.01), acute occlusion of the side branch (1.3%(7/560) vs. 7.1%(41/576), P<0.01) and implanted stents of side branch (1.8%(10/560) vs. 7.8% (45/576), P<0.01) were significantly lower in the ATP group than those in the PS group. During the one year follow up, the rate of target lesion revascularization was similar between ATP group and PS group (4.6%(26/560) vs. 4.0%(23/576), P=0.66). Conclusions: The effectiveness and safetyof ATP techniquein the patients with coronary bifurcation lesions is comparable to the PS technique. However, ATP technique is superior to PS technique on effectively reducing the incidence of implanted stents in the side branch.
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Affiliation(s)
- H Shen
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center For Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - L X Yang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center For Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - Z J Wang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center For Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - Z Ji
- Department of Cardiology, Tangshan Workers' Hospital, Tangshan, Hebei 063000, China
| | - B Liu
- Department of Cardiology, Second Hospital of Jilin University, Changchun 130041, China
| | - X Q Li
- Department of Cardiology, Fourth Hospital of Harbin Medical University, Harbin 150000, China
| | - S B Jia
- Department of Cardiology, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - Q Yang
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin 300000, China
| | - S Lyu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center For Coronary Heart Disease, Capital Medical University, Beijing 100029, China
| | - Y J Zhou
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center For Coronary Heart Disease, Capital Medical University, Beijing 100029, China
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Li C, Zhu B, Lyu S, You SL. [Discussion and evaluation of diagnostic criteria for hepatitis B virus-related acute-on-chronic pre-liver failure]. Zhonghua Gan Zang Bing Za Zhi 2019; 26:130-135. [PMID: 29804380 DOI: 10.3760/cma.j.issn.1007-3418.2018.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the concept of hepatitis B virus (HBV)-related acute-on-chronic pre-liver failure (pre-ACLF), and to develop and evaluate the diagnostic criteria for this disease. Methods: A retrospective analysis was performed for the clinical data of 754 patients with severe acute exacerbation (SAE) of HBV-related chronic liver disease, and their clinical features were identified. A multivariate logistic regression analysis was used to determine the risk factors for acute-on-chronic liver failure (ACLF). The inclusion rate of patients with SAE-HBV-related chronic liver disease and the detection rate of ACLF patients were analyzed to evaluate the value of four different versions of diagnostic criteria for pre-liver failure. The t-test, an analysis of variance, the Mann-Whitney U test, and the chi-square test were used for statistical analysis based on data type. Results: The incidence rate of ACLF in the patients with SAE-HBV-related chronic liver disease was 9.9% and the time to progression to ACLF was 12.0 ± 6.7 days. The multivariate logistic regression analysis showed that HBV reactivation (odds ratio [OR] = 5.118), direct bilirubin ratio (D/T) (OR = 1.041), age (OR = 1.033), total bilirubin (TBil) (OR = 1.005), prothrombin activity (PTA) (OR = 0.880), and serum sodium (Na) (OR = 0.918) were independent risk factors for ACLF. Group B (51.3 μmol/L < TBil < 171.1 μmol/L and 40%≤PTA < 60%, 4.2%) had a significantly lower incidence rate of ACLF than group A (51.3 μmol/L < TBil < 171.1 μmol/L and PTA < 40%, 13.7%) and group C (TBil > 171.1 μmol/L and 40% < PTA < 60%, 20.3%) (P < 0.001). Group C had a significantly shorter time to progression to ACLF than group A (10.5 ± 6.1 days vs 15.6 ± 7.4 days, P = 0.008). A total of 45 patients met the diagnostic criteria developed by Chongqing and the incidence rate of ACLF was 2.2%; 154 patients met the diagnostic criteria developed by Zhejiang and the incidence rate of ACLF was 7.1%; 188 patients met the diagnostic criteria in the Chinese guidelines and the incidence rate of ACLF was 6.4%; 117 patients met the diagnostic criteria for SAE-CHB and the incidence rate of ACLF was 9.4%. Conclusion: At present, these four versions of diagnostic criteria for pre-liver failure are not fully applicable to the clinical practice in China. The diagnostic criteria for HBV-related pre-ACLF should include important assessment indices which affect its progression to ACLF.
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Affiliation(s)
- C Li
- Liver Failure Treatment and Research Centre, 302 Military Hospital, Beijing 100039, China
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Yao S, Lyu S, An Y, Lu J, Gjermansen C, Schramm A. Microalgae-bacteria symbiosis in microalgal growth and biofuel production: a review. J Appl Microbiol 2018; 126:359-368. [PMID: 30168644 DOI: 10.1111/jam.14095] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [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: 01/05/2018] [Revised: 06/24/2018] [Accepted: 08/22/2018] [Indexed: 01/19/2023]
Abstract
Photosynthetic microalgae can capture solar energy and convert it to bioenergy and biochemical products. In nature or industrial processes, microalgae live together with bacterial communities and may maintain symbiotic relationships. In general interactions, microalgae exude dissolved organic carbon that becomes available to bacteria. In return, the bacteria remineralize sulphur, nitrogen and phosphorous to support the further growth of microalgae. In specific interactions, heterotrophic bacteria supply B vitamins as organic cofactors or produce siderophores to bind iron, which could be utilized by microalgae, while the algae supply fixed carbon to the bacteria in return. In this review, we focus on mutualistic relationship between microalgae and bacteria, summarizing recent studies on the mechanisms involved in microalgae-bacteria symbiosis. Symbiotic bacteria on promoting microalgal growth are described and the relevance of microalgae-bacteria interactions for biofuel production processes is discussed. Symbiotic microalgae-bacteria consortia could be utilized to improve microalgal biomass production and to enrich the biomass with valuable chemical and energy compounds. The suitable control of such biological interactions between microalgae and bacteria will help to improve the microalgae-based biomass and biofuel production in the future.
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Affiliation(s)
- S Yao
- Microbiology Group, College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China.,Section for Microbiology, Department of Bioscience, Aarhus University, Aarhus C, Denmark
| | - S Lyu
- Microbiology Group, College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - Y An
- Microbiology Group, College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - J Lu
- Microbial Engineering Group, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Roskilde, Denmark
| | - C Gjermansen
- Microbial Engineering Group, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Roskilde, Denmark
| | - A Schramm
- Section for Microbiology, Department of Bioscience, Aarhus University, Aarhus C, Denmark
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Kim J, Hwang J, Lyu S, Kim J. Human platelet-rich plasma improves endometrial regeneration and pregnancy outcomes in a murine model of asherman syndrome. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yoon S, Yoon J, Shin D, Park M, Eum J, Song H, Lee J, Lee D, Lee W, Lyu S. Recovery of ovarian function by human embryonic stem cells derived mesenchymal stem cells in cisplatin induced premature ovarian failure in mouse. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Paek S, Seok S, Park J, Jeon Y, Byun J, Son S, Lee S, Kim J, Hwang J, Kim J, Lyu S, Kim J, Kwak I, Lee W. Can single good quality frozen-thawed blastocyst transfer augment pregnancy rates in patients with elevated progesterone? Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1034] [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: 11/28/2022]
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Park M, Kim J, Hwang J, Lyu S, Song H. Perivascular stem cells from human umbilical cords ameliorate fibrotic uterine damage to improve poor pregnancy outcomes in a murine model of asherman's syndrome. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Lyu S, Arends D, Nassar MK, Weigend A, Weigend S, Preisinger R, Brockmann GA. Reducing the interval of a growth QTL on chromosome 4 in laying hens. Anim Genet 2018; 49:467-471. [PMID: 30058133 DOI: 10.1111/age.12685] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2018] [Indexed: 11/27/2022]
Abstract
In our previous research, we identified a QTL with an interval of 3.4 Mb for growth on chicken chromosome (GGA) 4 in an advanced intercross population of an initial cross between the New Hampshire inbred line (NHI) and the White Leghorn inbred line (WL77). In the current study, an association analysis was performed in a population of purebred white layers (WLA) with White Leghorn origin. Genotypic data of 130 SNPs within the previously identified 3.4-Mb region were obtained using a 60K SNP chip. In total, 24 significant SNPs (LOD ≥ 4.44) on GGA4 were detected for daily weigh gain from 8 to 14 weeks and two SNPs (LOD ≥ 4.80) for body weight at 14 weeks. The QTL interval was reduced by 1.9 Mb to an interval of 1.5 Mb (74.6-76.1 Mb) that harbors 15 genes. Furthermore, to identify additional loci for chicken growth, a genome-wide association study (GWAS) was carried out in a WLA population. The GWAS identified an additional QTL on GGA6 for body weight at six weeks (19.8-21.2 Mb). Our findings showed that by using a WLA population we were able to further reduce the QTL confidence interval previously detected using a NHI × WL77 advanced intercross population.
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Affiliation(s)
- S Lyu
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, Berlin, 10115, Germany
| | - D Arends
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, Berlin, 10115, Germany
| | - M K Nassar
- Department of Animal Production, Faculty of Agriculture, Cairo University, El-Gamma Str. 6, Giza, 12613, Egypt
| | - A Weigend
- Department of Breeding and Genetic Resources, Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Neustadt-Mariensee, 31535, Germany
| | - S Weigend
- Department of Breeding and Genetic Resources, Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Neustadt-Mariensee, 31535, Germany
| | - R Preisinger
- Lohmann Tierzucht GmbH, Am Seedeich 9-11, 27472, Cuxhaven, Germany
| | - G A Brockmann
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, Berlin, 10115, Germany
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Li C, Lyu S, Zhu B, Wan ZH, Liu WS, Guo L, You SL, Xin SJ. [Risk factors for short-term outcome of patients with HBV-related acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2017; 24:207-13. [PMID: 27095765 DOI: 10.3760/cma.j.issn.1007-3418.2016.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the risk factors for the short-term outcome of patients with hepatitis B virus (HBV)-related acute-on-chronic liver failure (ACLF), and to establish a risk model for predicting the short-term outcome of these patients. METHODS A total of 338 patients with HBV-related ACLF who were admitted to 30 Lod hospital of PLA hospital from January 2010 to January 2014 were enrolled, and a prospective clinical follow-up was performed for them. Multivariate logistic regression was used to determine the risk factors for short-term (12 weeks) outcome, the predictive model with logistic regression equation was established, and the predictive value of this model was evaluated. RESULTS The multivariate logistic regression analysis showed that age, a family history of hepatitis B, hepatic encephalopathy (HE), hepatorenal syndrome (HRS), white blood cell (WBC), platelet (PLT), international normalized ratio (INR), total bilirubin (TBil), total bile acid (TBA), creatinine, Na, HBV DNA, and HBeAg were the independent risk factors for the short-term outcome of these patients. Logistic(p) = -4.466 + 1.192 age + 1.631 family history of hepatitis B + 1.091 HE + 1.631 HRS + 1.208 WBC -1.487 PLT + 1.092 INR + 1.446 TBil + 1.608 TBA -1.101 CHE + 1.279 CRE -1.713 Na + 1.032 HBV DNA + 0.833 HBeAg. The area under the receiver operating characteristic curve of the model for the prediction of short-term outcome was 0.930, the cut-off value was 3.16, the sensitivity was 0.860, and the specificity was 0.871. With the increasing scores of the equation, the mortality of patients tended to increase gradually. CONCLUSION Age, a family history of hepatitis B, HE, HRS, WBC, PLT, INR, TBil, TBA, CHE, CRE, Na, HBV DNA, and HBeAg are the independent risk factors for the short-term outcome of patients with HBV-related ACLF. The model for predicting short-term outcome established on the basis of independent risk factors has a better clinical value in guiding clinical therapy.
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Affiliation(s)
- C Li
- Medical School of PLA, Beijing 100853, China; Department of Liver Failure Treatment and Research Center, 302ed hospital of PLA, Beijing 100039, China
| | - S Lyu
- Department of Liver Failure Treatment and Research Center, 302ed hospital of PLA, Beijing 100039, China
| | - B Zhu
- Department of Liver Failure Treatment and Research Center, 302ed hospital of PLA, Beijing 100039, China
| | - Z H Wan
- Department of Liver Failure Treatment and Research Center, 302ed hospital of PLA, Beijing 100039, China
| | - W S Liu
- Department of Liver Failure Treatment and Research Center, 302ed hospital of PLA, Beijing 100039, China
| | - L Guo
- The 61785ed Military Outpatient Department, Beijing 100075, China; Department of Liver Failure Treatment and Research Center, 302ed hospital of PLA, Beijing 100039, China
| | - S L You
- Department of Liver Failure Treatment and Research Center, 302ed hospital of PLA, Beijing 100039, China
| | - S J Xin
- Medical School of PLA, Beijing 100853, China; Department of Liver Failure Treatment and Research Center, 302ed hospital of PLA, Beijing 100039, China
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Song H, Kim Y, Park J, Park M, Lyu S, Koh Y, Heo J, Lee D, Park K. Biocompatible nanoparticle PLGA is a noble safe delivery system for embryo development and next generations. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Choi Y, Lyu S, Park H, Park M, Lee S, Cho M, Ko J, Koh Y, Heo J, Park H, Kim J, Lee W. Differences in endometrial microbial composition correlate with implantation failure after IVF embryo transfer. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Song H, Park M, Han E, Kim M, Lee W, Lyu S. Perivascular stem cells (PVSCS) facilitates restoration of impaired endometrium leading to improvement of pregnancy outcomes in a murine model of asherman’s syndrome. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1056] [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: 11/26/2022]
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Yang HZ, Zhu B, You SL, Xin SJ, Lyu S. [Clinical features and prognosis of hepatitis E-related liver failure: an analysis of 127 cases]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:380-382. [PMID: 28763847 DOI: 10.3760/cma.j.issn.1007-3418.2017.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- H Z Yang
- Tencent Internet+division, Shenzhen 518000, China
| | - B Zhu
- The PLA 302 hospital, Beijing 100039, China
| | - S L You
- The PLA 302 hospital, Beijing 100039, China
| | - S J Xin
- The PLA 302 hospital, Beijing 100039, China
| | - S Lyu
- The PLA 302 hospital, Beijing 100039, China
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Lyu S, Arends D, Nassar MK, Brockmann GA. Fine mapping of a distal chromosome 4 QTL affecting growth and muscle mass in a chicken advanced intercross line. Anim Genet 2017; 48:295-302. [PMID: 28124378 DOI: 10.1111/age.12532] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2016] [Indexed: 01/23/2023]
Abstract
In our previous research, QTL analysis in an F2 cross between the inbred New Hampshire (NHI) and White Leghorn (WL77) lines revealed a growth QTL in the distal part of chromosome 4. To physically reduce the chromosomal interval and the number of potential candidate genes, we performed fine mapping using individuals of generations F10 , F11 and F12 in an advanced intercross line that had been established from the initial F2 mapping population. Using nine single nucleotide polymorphism (SNP) markers within the QTL region for an association analysis with several growth traits from hatch to 20 weeks and body composition traits at 20 weeks, we could reduce the confidence interval from 26.9 to 3.4 Mb. Within the fine mapped region, markers rs14490774, rs314961352 and rs318175270 were in full linkage disequilibrium (D' = 1.0) and showed the strongest effect on growth and muscle mass (LOD ≥ 4.00). This reduced region contains 30 genes, compared to 292 genes in the original region. Chicken 60 K and 600 K SNP chips combined with DNA sequencing of the parental lines were used to call mutations in the reduced region. In the narrowed-down region, 489 sequence variants were detected between NHI and WL77. The most deleterious variants are a missense variant in ADGRA3 (SIFT = 0.02) and a frameshift deletion in the functional unknown gene ENSGALG00000014401 in NHI chicken. In addition, five synonymous variants were discovered in genes PPARGC1A, ADGRA3, PACRGL, SLIT2 and FAM184B. In our study, the confidence interval and the number of potential genes could be reduced 8- and 10- fold respectively. Further research will focus on functional effects of mutant genes.
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Affiliation(s)
- S Lyu
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, Berlin, 10115, Germany
| | - D Arends
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, Berlin, 10115, Germany
| | - M K Nassar
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, Berlin, 10115, Germany.,Department of Animal Production, Faculty of Agriculture, Cairo University, El-Gamma Str. 6, Giza, 12613, Egypt
| | - G A Brockmann
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Invalidenstraße 42, Berlin, 10115, Germany
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Lyu S, Arends D, Nassar MK, Brockmann GA. P5035 Fine mapping of a distal chromosome 4 QTL affecting growth and muscle mass in a chicken advanced intercross line. J Anim Sci 2016. [DOI: 10.2527/jas2016.94supplement4132a] [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: 11/13/2022] Open
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Gallardo RA, Carrasco-Medanic R, Zhou H, Lyu S, Wang Y, Woolcock PR, Hoerr FJ. Effects of challenge with very virulent infectious bursal disease virus reassortants in commercial chickens. Avian Dis 2015; 58:579-86. [PMID: 25619003 DOI: 10.1637/10844-040914-reg.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Pathogenicity and immune responses were characterized in commercial broilers and layers challenged with very virulent infectious bursal disease virus (vvIBDV) reassortants (vvIBDV segment A + serotype 2 segment B and vvIBDV segment A + classic virulent segment B) at 7 days of age. In addition, functional immunosuppression was evaluated after challenge with infectious bronchitis virus (IBV) at 15 days of age. Layers showed higher levels and increased persistence of IBDV- and IBV-specific maternal antibodies than broilers at 1, 13, and 28 days of age. Cytokine gene expression was evaluated, after IBDV challenge, as an indicator of the innate immune function. Similar results were detected between the groups inoculated with vvIBDV reassortants. Interleukin-1β (IL-1β) in the bursa of layers demonstrated down-regulation at 1 day postinfection (DPI; 8 days of age), and no changes at 4 DPI (11 days of age) compared with controls. In broilers, IL-6 expression in the bursa was down-regulated 1 DPI (8 days of age) and up-regulated at 4 DPI (11 days of age). A significant lymphoid depletion was detected at 21 DPI (28 days of age) in broilers exposed to a reassortant of vvIBDV segment A and classic virulent IBDV segment B. Finally, reduced specific antibodies against IBV measured 13 days after challenge were detected in layer and broiler chickens inoculated with a reassortant serotype 2 IBDV in segment B, suggesting functional immunosuppression. These results provide evidence indicating that current IBDV vaccination of breeders does not completely protect progeny chickens from challenge with reassortant vvIBDV.
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Sperling G, Lyu S, Kim H. Motion standstill in first- and second-order motion. J Vis 2010. [DOI: 10.1167/2.7.256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Pai H, Lyu S, Lee JH, Kim J, Kwon Y, Kim JW, Choe KW. Survey of extended-spectrum beta-lactamases in clinical isolates of Escherichia coli and Klebsiella pneumoniae: prevalence of TEM-52 in Korea. J Clin Microbiol 1999; 37:1758-63. [PMID: 10325320 PMCID: PMC84943 DOI: 10.1128/jcm.37.6.1758-1763.1999] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.3] [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] Open
Abstract
Two hundred ninety isolates of Escherichia coli were investigated for the production of extended-spectrum beta-lactamases (ESBLs). Fourteen (4.8%) of the 290 strains were found to produce ESBLs. Each of the 14 strains produced one or two ESBLs, as follows: 10 strains produced TEM-52, 1 strain produced SHV-2a, 1 strain produced SHV-12, 1 strain produced a CMY-1-like enzyme, and 1 strain expressed SHV-2a and a CMY-1-like enzyme. Another two strains for which the MICs of ceftazidime and cefoxitin were high, were probable AmpC enzyme hyperproducers. Because of the high prevalence of TEM-52 in E. coli isolates, we further investigated the TEM-type ESBLs produced by Klebsiella pneumoniae in order to observe the distribution of TEM-52 enzymes among Enterobacteriaceae in Korea. All TEM enzymes produced by 12 strains of K. pneumoniae were identified as TEM-52. To evaluate the genetic relatedness among the organisms, ribotyping of TEM-52-producing E. coli and K. pneumoniae was performed. The ribotyping profiles of the organisms showed similar but clearly different patterns. In conclusion, TEM-52 is the most prevalent TEM-type ESBL in Korea.
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Affiliation(s)
- H Pai
- Division of Infectious Disease, Department of Internal Medicine, College of Medicine, University of Dankook, Chonan, Seoul, Korea.
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