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Wang L, Rastegar-Mojarad M, Ji Z, Liu S, Liu K, Moon S, Shen F, Wang Y, Yao L, Davis Iii JM, Liu H. Detecting Pharmacovigilance Signals Combining Electronic Medical Records With Spontaneous Reports: A Case Study of Conventional Disease-Modifying Antirheumatic Drugs for Rheumatoid Arthritis. Front Pharmacol 2018; 9:875. [PMID: 30131701 PMCID: PMC6090179 DOI: 10.3389/fphar.2018.00875] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 07/19/2018] [Indexed: 12/24/2022] Open
Abstract
Multiple data sources are preferred in adverse drug event (ADEs) surveillance owing to inadequacies of single source. However, analytic methods to monitor potential ADEs after prolonged drug exposure are still lacking. In this study we propose a method aiming to screen potential ADEs by combining FDA Adverse Event Reporting System (FAERS) and Electronic Medical Record (EMR). The proposed method uses natural language processing (NLP) techniques to extract treatment outcome information captured in unstructured text and adopts case-crossover design in EMR. Performances were evaluated using two ADE knowledge bases: Adverse Drug Reaction Classification System (ADReCS) and SIDER. We tested our method in ADE signal detection of conventional disease-modifying antirheumatic drugs (DMARDs) in rheumatoid arthritis patients. Findings showed that recall greatly increased when combining FAERS with EMR compared with FAERS alone and EMR alone, especially for flexible mapping strategy. Precision (FAERS + EMR) in detecting ADEs improved using ADReCS as gold standard compared with SIDER. In addition, signals detected from EMR have considerably overlapped with signals detected from FAERS or ADE knowledge bases, implying the importance of EMR for pharmacovigilance. ADE signals detected from EMR and/or FAERS but not in existing knowledge bases provide hypothesis for future study.
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Affiliation(s)
- Liwei Wang
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Majid Rastegar-Mojarad
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Zhiliang Ji
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Sijia Liu
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Ke Liu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Sungrim Moon
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Feichen Shen
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Yanshan Wang
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Lixia Yao
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - John M Davis Iii
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Hongfang Liu
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, United States
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Kaiser E, Jaganathan SK, Supriyanto E, Ayyar M. Fabrication and characterization of chitosan nanoparticles and collagen-loaded polyurethane nanocomposite membrane coated with heparin for atrial septal defect (ASD) closure. 3 Biotech 2017; 7:174. [PMID: 28660462 PMCID: PMC5489446 DOI: 10.1007/s13205-017-0830-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 06/01/2017] [Indexed: 10/19/2022] Open
Abstract
Atrial septal defect (ASD) constitutes 30-40% of all congenital heart diseases in adults. The most common complications in the treatment of ASD are embolization of the device and thrombosis formation. In this research, an occluding patch was developed for ASD treatment using a well-known textile technology called electrospinning. For the first time, a cardiovascular occluding patch was fabricated using medical grade polyurethane (PU) loaded with bioactive agents namely chitosan nanoparticles (Cn) and collagen (Co) which is then coated with heparin (Hp). Fourier transform infrared spectrum showed characteristic vibrations of several active constituents and changes in the absorbance due to the inclusion of active ingredients in the patch. The contact angle analysis demonstrated no significant decrease in contact angle compared to the control and the composite patches. The structure of the electrospun nanocomposite (PUCnCoHp) was examined through scanning electron microscopy. A decrease in nanofiber diameter between control PU and PUCnCoHp nanocomposite was observed. Water uptake was found to be decreased for the PUCnCoHp nanocomposite against the control. The hemocompatibility properties of the PUCnCoHp ASD occluding patch was inferred through in vitro hemocompatibility tests like activated partial thromboplastin time (APTT), prothrombin time (PT) and hemolysis assay. It was found that the PT and APTT time was significantly prolonged for the fabricated PUCnCoHp ASD occluding patch compared to the control. Likewise, the hemolysis percentage was also decreased for the PUCnCoHp ASD patch against the control. In conclusion, the developed PUCnCoHp patch demonstrates potential properties to be used for ASD occlusion.
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Affiliation(s)
- Eva Kaiser
- Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
- Ilmenau Institute of Biomedical Engineering and Computer Science, Technical University of Ilmenau, 98693, Ilmenau, Germany
| | - Saravana Kumar Jaganathan
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
- IJN-UTM Cardiovascular Engineering Centre, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81300, Skudai, Johor, Malaysia.
| | - Eko Supriyanto
- Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
| | - Manikandan Ayyar
- Department of Chemistry, Bharat Institute of Higher Education and Research, Bharat University, Chennai, Tamilnadu, 600073, India
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