Articles by Jérémy Valentin In JoVE (3) Terapia Celular para insuficiência cardíaca em Rat: Double toracotomia para infarto do miocárdio e Epicárdica implante de células e BiomatrixQuantificação histológico de miocárdio crônico infarto em ratosO modelo de coelho da aterosclerose acelerada: uma perspectiva metodológica da artéria ilíaca balão lesão Other Publications (4) Biomedical Optics ExpressCirculation. Cardiovascular InterventionsFrontiers in PhysiologyFrontiers in Physiology Articles by Jérémy Valentin in JoVE Bioengineering Terapia Celular para insuficiência cardíaca em Rat: Double toracotomia para infarto do miocárdio e Epicárdica implante de células e Biomatrix Aurélien Frobert1, Jérémy Valentin1, Stéphane Cook1, Justine Lopes-Vicente1, Marie-Noëlle Giraud1 1Cardiology, Department of Medicine, University of Fribourg Implantação de um biograft para tratar infarto do miocárdio induzido por ligadura LAD em um modelo de roedor tem convencionalmente necessárias duas cirurgias de coração aberto. A fim de reduzir a mortalidade e proporcionar as condições óptimas para a fixação de Biomatrizes sólidos gelatinosos e associados a células, procedimentos minimamente invasivos têm sido desenvolvidos. Medicine Quantificação histológico de miocárdio crônico infarto em ratos Jérémy Valentin1, Aurélien Frobert1, Guillaume Ajalbert1, Stéphane Cook1, Marie-Noëlle Giraud1 1Cardiology, Department of Medicine, University of Fribourg Medicine O modelo de coelho da aterosclerose acelerada: uma perspectiva metodológica da artéria ilíaca balão lesão Manish Jain*1, Aurélien Frobert*1, Jérémy Valentin1, Stéphane Cook1, Marie-Noëlle Giraud1 1Cardiology, Department of Medicine, University of Fribourg Modelos animais de aterosclerose são essenciais para entender o mecanismo e a investigar novos enfoques para evitar o desenvolvimento de placa ou ruptura, das principais causas de morte no mundo industrializado. Este protocolo utiliza uma combinação de lesão de balão e colesterol dieta rica para induzir ateroma na artéria ilíaca coelho. Other articles by Jérémy Valentin on PubMed Subsurface Ablation of Atherosclerotic Plaque Using Ultrafast Laser Pulses Biomedical Optics Express. Jul, 2015 | Pubmed ID: 26203381 We perform subsurface ablation of atherosclerotic plaque using ultrafast pulses. Excised mouse aortas containing atherosclerotic plaque were ablated with ultrafast near-infrared (NIR) laser pulses. Optical coherence tomography (OCT) was used to observe the ablation result, while the physical damage was inspected in histological sections. We characterize the effects of incident pulse energy on surface damage, ablation hole size, and filament propagation. We find that it is possible to ablate plaque just below the surface without causing surface damage, which motivates further investigation of ultrafast ablation for subsurface atherosclerotic plaque removal. Optical Coherence Tomography Findings in Bioresorbable Vascular Scaffolds Thrombosis Circulation. Cardiovascular Interventions. Oct, 2015 | Pubmed ID: 26399265 Everolimus-eluting bioresorbable vascular scaffolds have been developed to improve late outcomes after coronary interventions. However, recent registries raised concerns regarding an increased incidence of scaffold thrombosis (ScT). The mechanism of ScT remains unknown. Prognostic Value of Troponin I for Infarct Size to Improve Preclinical Myocardial Infarction Small Animal Models Frontiers in Physiology. 2015 | Pubmed ID: 26640441 Coronary artery ligations to induce myocardial infarction (MI) in mice and rats are widely used in preclinical investigation. However, myocardial ischemic damage and subsequent infarct size are highly variable. The lack of standardization of the model impairs the probability of effective translation to the clinic. Cardiac Troponin I (cTnI) is a major clinically relevant biomarker. Intra-Arterial Drug and Light Delivery for Photodynamic Therapy Using Visudyne®: Implication for Atherosclerotic Plaque Treatment Frontiers in Physiology. 2016 | Pubmed ID: 27672369 Photodynamic therapy (PDT), which is based on the activation of photosensitizers with light, can be used to reduce plaque burden. We hypothesized that intra-arterial photosensitizer administration and photo-activation will lead to high and rapid accumulation within the plaque with reduced systemic adverse effects. Thus, this "intra-arterial" PDT would be expected to have less side effects and due to the short time involved would be compatible with percutaneous coronary interventions.
