Article
Chemistry, Multidisciplinary
John H. Ahrens, Sebastien G. M. Uzel, Mark Skylar-Scott, Mariana M. Mata, Aric Lu, Katharina T. Kroll, Jennifer A. Lewis
Summary: This study reports the fabrication of aligned cardiac tissues using bioprinting technology. By printing anisotropic organ building blocks, functional cardiac tissues with high cell density and complex cellular alignment can be generated.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Zhen-Guo Ma, Yu-Pei Yuan, Di Fan, Xin Zhang, Teng Teng, Peng Song, Chun-Yan Kong, Can Hu, Wen-Ying Wei, Qi-Zhu Tang
Summary: This study investigates the role of IRX2 in cardiac fibrosis. The results show that IRX2 expression is significantly increased in fibrotic hearts, primarily in cardiac fibroblasts. The study demonstrates that IRX2 regulates the EGR1 pathway to drive cardiac fibrosis.
NATURE COMMUNICATIONS
(2023)
Article
Physiology
Barbara Szeiffova Bacova, Katarina Andelova, Matus Sykora, Tamara Egan Benova, Lin Hai Kurahara, Jan Slezak, Narcis Tribulova
Summary: Our study found that myocardial hypertrophy in response to hypertension and hyperthyroidism increases the risk of malignant arrhythmias, while hypothyroidism or type-1 diabetes mellitus associated with myocardial atrophy have a lower risk. We also identified that the abundance and topology of Cx43 protein, an important factor impacting arrhythmias, differ between hypertrophic and hypotrophic cardiac phenotypes.
PHYSIOLOGICAL RESEARCH
(2023)
Article
Cardiac & Cardiovascular Systems
Adrienne R. Guarnieri, Sarah R. Anthony, Anamarie Gozdiff, Lisa C. Green, Salma M. Fleifil, Sam Slone, Michelle L. Nieman, Perwez Alam, Joshua B. Benoit, A. Phillip Owens, Onur Kanisicak, Michael Tranter
Summary: Adipose tissue homeostasis is crucial for cardiovascular health, with the presence of thermogenically active brown adipose tissue (BAT) associated with cardiometabolic health. Deletion of the RNA binding protein HuR in adipose tissue leads to spontaneous development of cardiac hypertrophy and fibrosis, suggesting a direct role of adipose tissue homeostasis in cardiovascular disease. This study demonstrates the intricate relationship between adipose tissue function and cardiovascular pathology, providing insights into potential mechanisms underlying cardiovascular disease.
AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY
(2021)
Article
Multidisciplinary Sciences
Charles D. Cohen, Miles J. De Blasio, Gabriella E. Farrugia, Malathi S. I. Dona, Ian Hsu, Darnel Prakoso, Helen Kiriazis, Crisdion Krstevski, David M. Nash, Mandy Li, Taylah L. Gaynor, Minh Deo, Grant R. Drummond, Rebecca H. Ritchie, Alexander R. Pinto
Summary: Diabetes is associated with an increased risk of heart failure, but the impact of diabetes on non-myocytes in the heart is still unclear. This study found that diabetes-induced cardiac remodeling involves a cellular response, including activation of fibroblast hyperplasia, cell migration, and dysregulation of pathways related to vascular homeostasis and protein folding.
Article
Pharmacology & Pharmacy
Yan Chen, Junteng Zhou, Zisong Wei, Yue Cheng, Geer Tian, Yue Quan, Qihang Kong, Wenchao Wu, Xiaojing Liu
Summary: Cardiac hypertrophy initially serves as an adaptive response to physiological and pathological stimuli. However, sustained hypertrophy leads to pathological cardiac hypertrophy, cardiac fibrosis, and ultimately heart failure. Recent studies have highlighted the importance of circRNA and its regulation of mRNA in the posttranscriptional regulation of cardiac hypertrophy. This study identifies differentially expressed circRNAs and explores their coexpression with mRNAs and miRNAs, providing potential targets for the treatment of pathological cardiac hypertrophy and fibrosis.
FRONTIERS IN PHARMACOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Aurelia Poerio, Bertrand Guibert, Melanie M. Leroux, Joao F. Mano, Franck Cleymand, Jean-Philippe Jehl
Summary: Myocardial infarction can cause irreversible damage to the heart muscle. Using 3D printing and a biomaterial ink, a study developed patterned anisotropic membranes that mimic the fibrillar structure of the myocardium, which could be used as cardiac patches for treatment and prevention of complications. A numerical model was also developed to predict the elastic properties of different geometries with tunable elasticity that can match the mechanical properties of the heart tissue.
Article
Veterinary Sciences
F. A. Gomez-Torres, H. Y. Estupinan, A. Ruiz-Sauri
Summary: This study conducted a morphometric analysis of cardiac conduction cells in male horse and dog hearts, revealing significant differences in density and thickness between the two species. Additionally, the study found that the area and diameter of cardiac conduction cells were larger in horses than in dogs. Dogs also had a higher number of junctions compared to horses.
RESEARCH IN VETERINARY SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Felipe Villanelo, Jorge Carrasco, Joaquin Jensen-Flores, Jose Antonio Garate, Tomas Perez-Acle
Summary: Connexin hemichannels facilitate the exchange of molecules such as ions, water, and ATP between eukaryotic cells and their extracellular space. Regulation of these channels by extracellular Ca2+ concentration is known to influence their open or closed state, but the exact mechanisms involved are still not fully understood. Studies using molecular dynamics simulations suggest that pore stretching at the center of the connexin hemichannels may be the key factor in channel blocking, rather than the addition of positive charge density inside the channel.
Article
Cell Biology
Xingjuan Shi, Yu Zhang, Yijie Gong, Mengying Chen, Koroboshka Brand-Arzamendi, Xiangdong Liu, Xiao-Yan Wen
Summary: Cardiac hypertrophy is a compensatory response to pathological stimuli that may progress to cardiomyopathy, heart failure, or sudden death. The decreased expression of Hhatl in the heart is associated with cardiac hypertrophy, as demonstrated by the depletion of Hhatl leading to cardiac defects and enhanced hypertrophic markers in zebrafish. Calcineurin signaling is implicated in Hhatl depletion-induced cardiac hypertrophy.
JOURNAL OF CELLULAR PHYSIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Yin-Ying Wang, Hongen Kang, Tianyi Xu, Lili Hao, Yiming Bao, Peilin Jia
Summary: CeDR Atlas is a knowledgebase reporting computational inference of cellular drug response for various cell types, fine mapping drug response at cellular resolution and providing insights for the design of effective treatments. Through the use of high-throughput profiling of drug-induced gene expression and single-cell RNA sequencing data, it presents results for hundreds of cell types from different tissues and diseases, allowing exploration and search by keywords for drugs, cell types, tissues, diseases, and signature genes.
NUCLEIC ACIDS RESEARCH
(2022)
Article
Endocrinology & Metabolism
Peter Wolf, Khaoula Bouazizi, Nadjia Kachenoura, Celine Piedvache, Antonio Gallo, Sylvie Salenave, Luigi Maione, Jacques Young, Mikael Prigent, Anne-Lise Lecoq, Emmanuelle Kuhn, Helene Agostini, Severine Trabado, Alban Redheuil, Philippe Chanson, Peter Kamenicky
Summary: In this study, cardiac magnetic resonance imaging was used to investigate the cardiac morphology and function of patients with active acromegaly. The study found that these patients had increased left ventricular mass and end-diastolic volume compared to controls. Treatment was able to reduce these measures without significantly affecting extracellular mass.
EUROPEAN JOURNAL OF ENDOCRINOLOGY
(2023)
Article
Pharmacology & Pharmacy
Bin Shen, Xinyi Feng, Pan Huan, Xiaoqin Zhang, Jiming Wu, He Yi, Ziyue Li, Xiaochun Zou, Zhouqi Lu, Bangwei Zhou, Jin Jing, Shihui Liu, Jinlai Gao
Summary: Pathological cardiac hypertrophy can be reduced by decreasing the expression of SOX4, which regulates SIRT3 expression and affects the levels of ROS and oxidative stress in the heart.
EUROPEAN JOURNAL OF PHARMACOLOGY
(2023)
Article
Otorhinolaryngology
V. V. Sameema, Kapil Soni, Surender Deora, Jai Bharat Sharma, Bikram Choudhury, Darwin Kaushal, Swati Chhabra, Amit Goyal
Summary: Chronic upper airway obstruction caused by adenotonsillar hypertrophy can result in various cardiac dysfunctions, but these can be improved through adenotonsillectomy. Cardiac screening in children with adenotonsillar hypertrophy can help identify and prevent cardiopulmonary complications.
EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY
(2022)
Review
Biotechnology & Applied Microbiology
Nataliia Naumova, Laura Iop
Summary: Heart rhythm disturbances can have life-threatening consequences for pediatric and adult patients. When pharmacological therapy is ineffective, implanting electronic devices to control and restore normal heart pacing is a unique clinical management option. However, these artificial devices have limitations, prompting the development of biological pacemakers as a new clinical solution.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Cardiac & Cardiovascular Systems
Irina A. Polejaeva, Ravi Ranjan, Christopher J. Davies, Misha Regouski, Justin Hall, Aaron L. Olsen, Qinggang Meng, Heloisa M. Rutigliano, Derek J. Dosdall, Nathan A. Angel, Frank B. Sachse, Thomas Seidel, Aaron J. Thomas, Rusty Stott, Kip E. Panter, Pamela M. Lee, Arnaud J. Van Wettere, John R. Stevens, Zhongde Wang, Rob S. Macleod, Nassir F. Marrouche, Kenneth L. White
JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY
(2016)
Review
Biochemistry & Molecular Biology
T. Seidel, A. C. Sankarankutty, F. B. Sachse
PROGRESS IN BIOPHYSICS & MOLECULAR BIOLOGY
(2017)
Article
Physiology
Joachim Greiner, Aparna C. Sankarankutty, Gunnar Seemann, Thomas Seidel, Frank B. Sachse
FRONTIERS IN PHYSIOLOGY
(2018)
Article
Multidisciplinary Sciences
Stefan Klima, Ronny Grunert, Benjamin Ondruschka, Mario Scholze, Thomas Seidel, Michael Werner, Niels Hammer
SCIENTIFIC REPORTS
(2018)
Article
Multidisciplinary Sciences
Carola Fischer, Hendrik Milting, Evelyn Fein, Elisabeth Reiser, Kun Lu, Thomas Seidel, Camilla Schinner, Thomas Schwarzmayr, Rene Schramm, Roland Tomasi, Britta Husse, Xiaochun Cao-Ehlker, Ulrich Pohl, Andreas Dendorfer
NATURE COMMUNICATIONS
(2019)
Article
Cardiac & Cardiovascular Systems
Thomas Seidel, Dominik J. Fiegle, Tim J. Baur, Anne Ritzer, Sandra Nay, Christian Heim, Michael Weyand, Hendrik Milting, Robert H. Oakley, John A. Cidlowski, Tilmann Volk
BASIC RESEARCH IN CARDIOLOGY
(2019)
Article
Cardiac & Cardiovascular Systems
Qinghua Hu, Azmi A. Ahmad, Thomas Seidel, Chris Hunter, Molly Streiff, Linda Nikolova, Kenneth W. Spitzer, Frank B. Sachse
JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY
(2020)
Article
Physiology
Maha Abu-Khousa, Dominik J. Fiegle, Sophie T. Sommer, Ghazali Minabari, Hendrik Milting, Christian Heim, Michael Weyand, Roland Tomasi, Andreas Dendorfer, Tilmann Volk, Thomas Seidel
FRONTIERS IN PHYSIOLOGY
(2020)
Article
Multidisciplinary Sciences
Dominik J. Fiegle, Tilmann Volk, Thomas Seidel
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
(2020)
Article
Cardiac & Cardiovascular Systems
Dominik J. Fiegle, Martin Schober, Sven Dittrich, Robert Cesnjevar, Karin Klingel, Tilmann Volk, Muhannad Alkassar, Thomas Seidel
Summary: The study found that in pediatric viral myocarditis, remodeling of the cardiomyocyte transverse tubular system (t-system) may lead to impairment of excitation-contraction coupling. Compared to atrioventricular septum defect, myocarditis samples showed increased t-tubule distance and dilation of t-tubules, resembling the structural changes of chronically failing adult hearts. The measurement of intact EC coupling junctions in myocarditis samples showed a distinct increase.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2021)
Article
Biology
Joachim Greiner, Aparna C. Sankarankutty, Thomas Seidel, Frank B. Sachse
Summary: Ventricular arrhythmias are a major cause of mortality in patients with ischemic heart diseases. Computational simulation of cardiac electrophysiology can provide insights into these arrhythmias and their treatment, but there is limited information on model parameters. This study introduces an approach to estimate intracellular electrical conductivities in normal and myocardial infarction hearts and finds strong correlations with tissue features.
COMPUTERS IN BIOLOGY AND MEDICINE
(2022)
Article
Biochemistry & Molecular Biology
Ann-Katrin M. Pfeuffer, Linda K. Kuepfer, Thirupura S. Shankar, Stavros G. Drakos, Tilmann Volk, Thomas Seidel
Summary: The cultivation of beating myocardial slices is an emerging technique in cardiac research for drug screening and studying pathomechanisms. This study focuses on staining viable cardiomyocytes in human and rabbit myocardial slices using immunofluorescence of ryanodine receptors (RyRs). The results suggest that RyR immunofluorescence can indicate viable cardiomyocytes and loss of sarcoplasmic reticulum integrity may be an early event during cardiomyocyte death.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Cardiac & Cardiovascular Systems
Runzhu Shi, Marius Reichardt, Dominik J. Fiegle, Linda K. Kuepfer, Titus Czajka, Zhengwu Sun, Tim Salditt, Andreas Dendorfer, Thomas Seidel, Tobias Bruegmann
Summary: This study evaluates the use of healthy pig myocardial slices and biomimetic cultivation setups as a new approach for screening cardiotoxicity. The method was able to accurately assess the effects of different drugs on cardiac tissue, including their mode of action on ion channels. The results demonstrate the potential of this approach for improving preclinical cardiotoxicity screening.
CARDIOVASCULAR RESEARCH
(2023)
Article
Cardiac & Cardiovascular Systems
Thomas Seidel, Sutip Navankasattusas, Azmi Ahmad, Nikolaos A. Diakos, Weining David Xu, Martin Tristani-Firouzi, Michael J. Bonios, Iosif Taleb, Dean Y. Li, Craig H. Selzman, Stavros G. Drakos, Frank B. Sachse
Article
Engineering, Biomedical
Thomas Seidel, J. -C. Edelmann, Frank B. Sachse
ANNALS OF BIOMEDICAL ENGINEERING
(2016)