Sini Skarp, Anne Doedens, Lauri Holmström, Valerio Izzi, Samu Saarimäki, Eeva Sliz, Johannes Kettunen, Lasse Pakanen, Risto Kerkelä, Katri Pylkäs, Heikki V Huikuri, Robert J Myerburg, Juhani Junttila
{"title":"Novel Genetic Variants Associated with Primary Myocardial Fibrosis in Sudden Cardiac Death Victims.","authors":"Sini Skarp, Anne Doedens, Lauri Holmström, Valerio Izzi, Samu Saarimäki, Eeva Sliz, Johannes Kettunen, Lasse Pakanen, Risto Kerkelä, Katri Pylkäs, Heikki V Huikuri, Robert J Myerburg, Juhani Junttila","doi":"10.1007/s12265-024-10527-5","DOIUrl":"10.1007/s12265-024-10527-5","url":null,"abstract":"<p><p>Myocardial fibrosis is a common finding in victims of sudden cardiac death (SCD). Whole exome sequencing was performed in 127 victims of SCD with primary myocardial fibrosis as the only pathological finding. These cases are derived from the Fingesture study which has collected data from autopsy-verified SCD victims in Northern Finland. A computational approach was used to identify protein interactions in cardiomyocytes. Associations of the identified variants with cardiac disease endpoints were investigated in the Finnish national genetic study (FinnGen) dataset. We identified 21 missense and one nonsense variant. Four variants were estimated to affect protein function, significantly associated with SCD/primary myocardial fibrosis (Fingesture) and associated with cardiac diseases in Finnish population (FinnGen). These variants locate in cartilage acidic protein 1 (CRATC1), calpain 1 (CAPN1), unc-45 myosin chaperone A (UNC45A) and unc-45 myosin chaperone B (UNC45B). The variants identified contribute to function of extracellular matrix and cardiomyocytes.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":"1229-1239"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11634914/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141283833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiajia Bao, Mateng Bai, Muke Zhou, Jinghuan Fang, Yanbo Li, Jian Guo, Li He
{"title":"Morphological Features of the Vertebrobasilar System Predict Ischemic Stroke Risk in Spontaneous Vertebral Artery Dissection.","authors":"Jiajia Bao, Mateng Bai, Muke Zhou, Jinghuan Fang, Yanbo Li, Jian Guo, Li He","doi":"10.1007/s12265-024-10534-6","DOIUrl":"10.1007/s12265-024-10534-6","url":null,"abstract":"<p><p>The vertebral artery's morphological characteristics are crucial in spontaneous vertebral artery dissection (sVAD). We aimed to investigate morphologic features related to ischemic stroke (IS) and develop a novel prediction model. Out of 126 patients, 93 were finally analyzed. We constructed 3D models and morphological analyses. Patients were randomly classified into training and validation cohorts (3:1 ratio). Variables selected by LASSO - including five morphological features and five clinical characteristics - were used to develop prediction model in the training cohort. The model exhibited a high area under the curve (AUC) of 0.944 (95%CI, 0.862-0.984), with internal validation confirming its consistency (AUC = 0.818, 95%CI, 0.597-0.948). Decision curve analysis (DCA) indicated clinical usefulness. Morphological features significantly contribute to risk stratification in sVAD patients. Our novel developed model, combining interdisciplinary parameters, is clinically useful for predicting IS risk. Further validation and in-depth research into the hemodynamics related to sVAD are necessary.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":"1365-1376"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11634921/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141558845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High-intensity Focused Ultrasound-A New Choice to Conduct Pulmonary Artery Denervation.","authors":"Yonghui Xie, Taoyue Yao, Xiaogang Zhu, Fan Yang, Haoqin Fan, Shirui Cao, Huaiyang Chen, Manzhen Liao, Yuanxi Xia, Jinqiao Liu, Zhenghui Xiao, Zhou Yang, Yunbin Xiao","doi":"10.1007/s12265-024-10531-9","DOIUrl":"10.1007/s12265-024-10531-9","url":null,"abstract":"<p><p>This research aimed to explore whether high-intensity focused ultrasound (HIFU) could conduct pulmonary artery denervation (PADN). HIFU was performed in pulmonary arteries of 6 normotensive rabbits at dose of 250W, 6 times for each rabbit, and an additional 6 rabbits served as controls. Then ATEPH was induced in both groups by intravenous infusion of autogeneic thrombus. Hemodynamics and ultrasonography parameters were measured by right heart catheter and echocardiography pre- and post-establishment of ATEPH models in both groups. Histological analysis and immunohistochemistry of tyrosine hydroxylase (TH) were also performed. After PADN procedures, 5 rabbits were successfully conducted PADN, of which ablation zone was also observed in right auricle or right lung in 4 rabbits. Ablation zone was detected only in right lung in 1 rabbit. Compared with control group, milder right heart hemodynamic changes were found in PADN group, accompanied by improved ultrasound parameters in PADN group. HIFU can acutly damage SNs around pulmonary artery successfully, which may be a new choice to conduct PADN. However, the accuracy of HIFU with PADN needs to be improved.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":"1353-1364"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11635049/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141544876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Plasma Biomarker Screening Based on Proteomic Signature of Patients with Resistant Hypertension.","authors":"Jianmin Du, Xiaoqian Yu, Wenyu Zhang, Xinghai Zhang, Hengli Zhao, Rui Xu, Qing Wen","doi":"10.1007/s12265-024-10541-7","DOIUrl":"10.1007/s12265-024-10541-7","url":null,"abstract":"<p><p>Resistant hypertension (RH) poses a significant health challenge, yet its underlying pathogenesis remains unclear. This study employs untargeted proteomic techniques to analyze the plasma of patients with RH and controlled hypertension (CH), identifying 157 differentially expressed proteins, with TGFB1 emerging as a key candidate. Through gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment, Protein-Protein Interaction Networks (PPI) topological analysis, TGFB1's differential regulation in RH is established. ELISA verification solidifies TGFB1's role, marking it as a potential biological target for early RH diagnosis and treatment. The study underscores the importance of proteomic approaches in enhancing our understanding of RH and improving therapeutic strategies. These findings carry implications for advancing RH diagnostics and treatment modalities, addressing a critical gap in current knowledge.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":"1286-1294"},"PeriodicalIF":2.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141544877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maximilian Dietrich, Aycan Tayan, Tobias Hölle, Christian Nusshag, Anne-Christine Kapp, Christina Mertens, Alexander Studier-Fischer, Felix Nickel, Florian Leuschner, Markus Alexander Weigand, Matthias Karck, Christoph Lichtenstern, Rawa Arif, Dania Fischer
{"title":"Hyperspectral Imaging for Microcirculatory Assessment of Patients undergoing Transcatheter and Surgical Aortic Valve Replacement-a Prospective Observational Pilot Study.","authors":"Maximilian Dietrich, Aycan Tayan, Tobias Hölle, Christian Nusshag, Anne-Christine Kapp, Christina Mertens, Alexander Studier-Fischer, Felix Nickel, Florian Leuschner, Markus Alexander Weigand, Matthias Karck, Christoph Lichtenstern, Rawa Arif, Dania Fischer","doi":"10.1007/s12265-024-10573-z","DOIUrl":"https://doi.org/10.1007/s12265-024-10573-z","url":null,"abstract":"<p><p>This prospective, observational study evaluated Hyperspectral Imaging (HSI) to assess the effects of cardiac surgery and cardiopulmonary bypass (CPB) on microcirculation. 40 Patients with severe aortic stenosis were enrolled. 20 patients underwent transapical/transaxillary/transaortic aortic valve replacement (TAVR), 20 underwent an open surgical approach with CPB (SAVR). HSI was used to determine tissue oxygenation (StO<sub>2</sub> and NIR), hemoglobin (THI) and water content (TWI) at the palm before/after surgery (T1/T2), and on the third postoperative day (T3). TAVR patients showed no significant changes of microcirculatory parameters during surgery. TWI significantly increased until T3. SAVR patients showed an increase of TWI and a decrease of THI, while StO<sub>2</sub> and NIR remained unchanged at T2. In SAVR patients, StO<sub>2</sub> and NIR correlated negatively with the duration of CPB and StO<sub>2</sub> correlated with intraoperative urine output at T2. HSI was able to detect microcirculatory changes during cardiac surgery. CPB duration seemed to affect tissue oxygenation. Clinical trial registration: (German Clinical Trial Register): DRKS00024765.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142604100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Johannes H Jedrzejczyk, Frederik T Andersen, Jacob Petersen, Alexander Emil Kaspersen, Urjosee Sahana, Søren N Skov, Jens T Væsel, J Michael Hasenkam, Marcell J Tjørnild
{"title":"Mechanical and Geometric Characterization of a Novel 2-Ply Vacuum-Pressed Biological Scaffold Patch Design for Posterior Mitral Valve Reconstruction.","authors":"Johannes H Jedrzejczyk, Frederik T Andersen, Jacob Petersen, Alexander Emil Kaspersen, Urjosee Sahana, Søren N Skov, Jens T Væsel, J Michael Hasenkam, Marcell J Tjørnild","doi":"10.1007/s12265-024-10572-0","DOIUrl":"https://doi.org/10.1007/s12265-024-10572-0","url":null,"abstract":"<p><p>To assess the mechanical properties of small intestinal submucosal extracellular matrix (SIS-ECM) iterations and choose the optimal version for evaluating functional geometrics after posterior mitral valve reconstruction. Four SIS-ECM versions (2- and 4-ply vacuum-pressed and lyophilized) underwent uniaxial tensile testing. A posterior mitral valve reconstruction patch was developed based on MRI scans (n = 5). Posterior mitral valve reconstruction using 2-ply vacuum-pressed SIS-ECM was performed (n = 7), and geometrics were evaluated using a modified left heart simulator. The vacuum-pressed iterations displayed superior maximum stress values compared to lyophilized (2-ply: median [IQR], 15.8 [15.2-19.0] vs 7.9 [7.3-8.3] MPa, p < 0.001; 4-ply: median (IQR), 15.8 -[14.6-22.0] vs 7.9 [7.6-8.4] MPa). All reconstructed valves were competent with preserved total leaflet area, but individual leaflet segment areas were redistributed. Posterior mitral valve reconstruction with our 2-ply vacuum-pressed SIS-ECM patch design was feasible in vitro. Further in vivo evaluation is warranted.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lin Lin, Jin Wei, Jiahong Xue, Gang Fan, Wenjing Zhu, Yanhe Zhu, Ruiyun Wu
{"title":"Drp1 Promotes Macrophage M1 Polarization and Inflammatory Response in Autoimmune Myocarditis by Driving Mitochondrial Fission.","authors":"Lin Lin, Jin Wei, Jiahong Xue, Gang Fan, Wenjing Zhu, Yanhe Zhu, Ruiyun Wu","doi":"10.1007/s12265-024-10570-2","DOIUrl":"https://doi.org/10.1007/s12265-024-10570-2","url":null,"abstract":"<p><p>Autoimmune myocarditis (AM) is characterized by an intricate inflammatory response within the myocardium. Dynamin-related protein 1 (Drp1), a pivotal modulator of mitochondrial fission, plays a role in the pathogenesis of various diseases. A myosin-induced experimental autoimmune myocarditis (EAM) mouse model was successfully established. Flow cytometry was employed to detect M1/M2-like macrophages. Mitochondrial fragmentation was assessed using Mito-Tracker Red CMXRos. Drp1 was upregulated and activated in EAM mice. Depletion of Drp1 was observed to mitigate inflammation, macrophage infiltration and M1 polarization within the cardiac tissue of EAM mice. In M1-like macrophages derived from the hearts of EAM mice, Drp1 was found to promote mitochondrial fission and diminish mitochondrial fusion. Furthermore, the depletion of Drp1 reduced the NF-κB-related pro-inflammatory response in EAM-associated M1-like macrophages. Drp1 drives mitochondrial fission in macrophages, driving their M1 polarization and the subsequent inflammatory response. Drp1 may represent an effective target for the prevention and treatment of AM.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142400328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Circulating Extracellular Vesicles from Heart Failure Patients Inhibit Human Cardiomyocyte Activities.","authors":"Ke Zhen, Xiaojuan Wei, Zelun Zhi, Shiyu Shang, Shuyan Zhang, Yilu Xu, Xiaochuan Fu, Linjia Cheng, Jing Yao, Yue Li, Xia Chen, Pingsheng Liu, Hongchao Zhang","doi":"10.1007/s12265-024-10571-1","DOIUrl":"https://doi.org/10.1007/s12265-024-10571-1","url":null,"abstract":"<p><p>Extracellular vesicles (EVs) have been implicated in cardiac remodeling during heart failure (HF). However, the role of circulating EVs (CEVs) in the process of HF is poorly understood. To elucidate the molecular mechanism associated with CEVs in the context of HF, the proteome of 4D label-free EVs from plasma samples was identified. Among the identified proteins, 6 exhibited upregulation while 9 demonstrated downregulation in CEVs derived from HF patients (HCEVs) compared to healthy controls (NCEVs). Our results showed that up-regulated proteins mainly participate in the primary metabolic, glycerolipid metabolic processes, oxidation-reduction process, and inflammatory amplification. In contrast, the down-regulated proteins influenced cell development, differentiation, and proliferation. Compared to NCEVs, HCEVs significantly induced inflammation and triacylglycerol (TAG) accumulation in human cardiomyocytes (HCMs) in vitro. They also compromised their regenerative capacities, triggered endoplasmic reticulum (ER) stress and increased autophagy in HCMs. Further, HCEVs induced differentiation of human cardiac fibroblasts (HCFs), amplifying pro-inflammatory, and pro-fibrotic factors, and enhancing extracellular matrix deposition. Notably, HCEVs are also associated with an increase in the HF biomarker MMP9 within HCFs and demonstrate a negative correlation with autophagic flux. In conclusion, HCEVs appear pivotal in advancing HF via pathological cardiac remodeling.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142390828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Isolated Perfused Hearts for Cardiovascular Research: An Old Dog with New Tricks.","authors":"Tianshuo Yang, Zirui Liu, Songren Shu, Zhice Chen, Xiumeng Hua, Jiangping Song","doi":"10.1007/s12265-024-10517-7","DOIUrl":"10.1007/s12265-024-10517-7","url":null,"abstract":"<p><p>In modern cardiovascular research, isolated perfused hearts have become cost-effective and highly reproducible tools to investigate the mechanisms of cardiovascular diseases (CVDs). Since they were first introduced in the nineteenth century, isolated perfused hearts have been extensively used for testing novel therapies, elucidating cardiac metabolic and electrophysiological activities, and modeling CVDs, including ischemic heart disease, arrhythmias, and hyperacute rejection. In recent years, ex vivo heart perfusion (EVHP) has shown potential in cardiac transplantation by allowing prolonged preservation and reconditioning of donor hearts. In this review, we summarize the evolution of the isolated perfused heart technique and its applications in cardiovascular research to help researchers comprehensively understand the capabilities of isolated heart models and provide guidance to use them to investigate various CVDs.</p>","PeriodicalId":15224,"journal":{"name":"Journal of Cardiovascular Translational Research","volume":" ","pages":"1207-1217"},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11519150/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140876458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}