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Asiri F, Haque Siddiqui MI, Ali MA, Alam T, Dobrotă D, Chicea R, Dobrotă RD. Mathematical modeling of active contraction of the human cardiac myocyte: A review. Heliyon 2023; 9:e20065. [PMID: 37809539 PMCID: PMC10559823 DOI: 10.1016/j.heliyon.2023.e20065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/26/2023] [Accepted: 09/10/2023] [Indexed: 10/10/2023] Open
Abstract
Background and objective In this present research paper, a mathematical model has been developed to study myocyte contraction in the human cardiac muscle, using the Land model. Different parts of the human heart with a focus on the composition of the myocyte cells have been explored numerically to enabling us to determine the interaction of various parameters in the heart muscle. The main objective of the work is to direct the study of the Land model, which has been exploited to simulate the contraction of real human myocytes. Methods Mathematical models has been developed based on the Hill model and Huxley model. Myocyte contraction for different scenarios, such as in isometric tension and isotonic tension have been studied. Results It is found that increase in stretch, the peak active tension increases, in line with well-established length-dependent tension generation. Five parameters are selected: [Ca2+]T50, Tref, TRPN50, β0, and β1, which have been varied in between the range of -50%-100%, to examine the isometric effects of each parameter on the behavior of the tension developed in the intact myocyte cells, with the most sensitive parameter being [Ca2+]T50. Conclusion In conclusion, it is found that the Land model provides a good platform for the analysis of the active contraction of the human cardiac myocyte.
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Affiliation(s)
- Fisal Asiri
- Department of Mathematics, Taibah University, Medina, 42353, Saudi Arabia
| | | | - Masood Ashraf Ali
- Department of Industrial Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Al-Kharj, 16273, Saudi Arabia
| | - Tabish Alam
- CSIR-Central Building Research Institute, Roorkee, 247667, India
| | - Dan Dobrotă
- Faculty of Engineering, Lucian Blaga University of Sibiu, 550024, Sibiu, Romania
| | - Radu Chicea
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550024, Sibiu, Romania
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Jayne RK, Karakan MÇ, Zhang K, Pierce N, Michas C, Bishop DJ, Chen CS, Ekinci KL, White AE. Direct laser writing for cardiac tissue engineering: a microfluidic heart on a chip with integrated transducers. LAB ON A CHIP 2021; 21:1724-1737. [PMID: 33949395 DOI: 10.1039/d0lc01078b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
We have developed a microfluidic platform for engineering cardiac microtissues in highly-controlled microenvironments. The platform is fabricated using direct laser writing (DLW) lithography and soft lithography, and contains four separate devices. Each individual device houses a cardiac microtissue and is equipped with an integrated strain actuator and a force sensor. Application of external pressure waves to the platform results in controllable time-dependent forces on the microtissues. Conversely, oscillatory forces generated by the microtissues are transduced into measurable electrical outputs. We demonstrate the capabilities of this platform by studying the response of cardiac microtissues derived from human induced pluripotent stem cells (hiPSC) under prescribed mechanical loading and pacing. This platform will be used for fundamental studies and drug screening on cardiac microtissues.
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Affiliation(s)
- Rachael K Jayne
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA. and Photonics Center, Boston University, Boston, MA 02215, USA
| | - M Çağatay Karakan
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA. and Photonics Center, Boston University, Boston, MA 02215, USA
| | - Kehan Zhang
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA and Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Noelle Pierce
- Photonics Center, Boston University, Boston, MA 02215, USA
| | - Christos Michas
- Photonics Center, Boston University, Boston, MA 02215, USA and Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - David J Bishop
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA. and Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA and Division of Materials Science and Engineering, Boston University, Boston, Massachusetts 02215, USA and Department of Electrical and Computer Engineering, Boston University, Boston, MA 02215, USA and Department of Physics, Boston University, Boston, MA 02215, USA
| | - Christopher S Chen
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA and Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Kamil L Ekinci
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA. and Photonics Center, Boston University, Boston, MA 02215, USA and Division of Materials Science and Engineering, Boston University, Boston, Massachusetts 02215, USA
| | - Alice E White
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA. and Photonics Center, Boston University, Boston, MA 02215, USA and Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA and Division of Materials Science and Engineering, Boston University, Boston, Massachusetts 02215, USA and Department of Physics, Boston University, Boston, MA 02215, USA
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