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Singhal R, Sarangi MK, Rath G. Injectable Hydrogels: A Paradigm Tailored with Design, Characterization, and Multifaceted Approaches. Macromol Biosci 2024:e2400049. [PMID: 38577905 DOI: 10.1002/mabi.202400049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/22/2024] [Indexed: 04/06/2024]
Abstract
Biomaterials denoting self-healing and versatile structural integrity are highly curious in the biomedicine segment. The injectable and/or printable 3D printing technology is explored in a few decades back, which can alter their dimensions temporarily under shear stress, showing potential healing/recovery tendency with patient-specific intervention toward the development of personalized medicine. Thus, self-healing injectable hydrogels (IHs) are stunning toward developing a paradigm for tissue regeneration. This review comprises the designing of IHs, rheological characterization and stability, several benchmark consequences for self-healing IHs, their translation into tissue regeneration of specific types, applications of IHs in biomedical such as anticancer and immunomodulation, wound healing and tissue/bone regeneration, antimicrobial potentials, drugs, gene and vaccine delivery, ocular delivery, 3D printing, cosmeceuticals, and photothermal therapy as well as in other allied avenues like agriculture, aerospace, electronic/electrical industries, coating approaches, patents associated with therapeutic/nontherapeutic avenues, and numerous futuristic challenges and solutions.
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Affiliation(s)
- Rishika Singhal
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Malhaur Railway Station Road, Gomti Nagar, Lucknow, Uttar Pradesh, 201313, India
| | - Manoj Kumar Sarangi
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Malhaur Railway Station Road, Gomti Nagar, Lucknow, Uttar Pradesh, 201313, India
| | - Goutam Rath
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan University, Bhubaneswar, Odisha, 751030, India
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Wang H, Pong T, Obafemi OO, Lucian HJ, Aparicio-Valenzuela J, Tran NA, Mullis DM, Elde S, Tada Y, Baker SW, Wang CY, Cyr KJ, Paulsen MJ, Zhu Y, Lee AM, Woo YJ. Electrophysiologic Conservation of Epicardial Conduction Dynamics After Myocardial Infarction and Natural Heart Regeneration in Newborn Piglets. Front Cardiovasc Med 2022; 9:829546. [PMID: 35355973 PMCID: PMC8959497 DOI: 10.3389/fcvm.2022.829546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/15/2022] [Indexed: 11/13/2022] Open
Abstract
Newborn mammals, including piglets, exhibit natural heart regeneration after myocardial infarction (MI) on postnatal day 1 (P1), but this ability is lost by postnatal day 7 (P7). The electrophysiologic properties of this naturally regenerated myocardium have not been examined. We hypothesized that epicardial conduction is preserved after P1 MI in piglets. Yorkshire-Landrace piglets underwent left anterior descending coronary artery ligation at age P1 (n = 6) or P7 (n = 7), After 7 weeks, cardiac magnetic resonance imaging was performed with late gadolinium enhancement for analysis of fibrosis. Epicardial conduction mapping was performed using custom 3D-printed high-resolution mapping arrays. Age- and weight-matched healthy pigs served as controls (n = 6). At the study endpoint, left ventricular (LV) ejection fraction was similar for controls and P1 pigs (46.4 ± 3.0% vs. 40.3 ± 4.9%, p = 0.132), but significantly depressed for P7 pigs (30.2 ± 6.6%, p < 0.001 vs. control). The percentage of LV myocardial volume consisting of fibrotic scar was 1.0 ± 0.4% in controls, 9.9 ± 4.4% in P1 pigs (p = 0.002 vs. control), and 17.3 ± 4.6% in P7 pigs (p < 0.001 vs. control, p = 0.007 vs. P1). Isochrone activation maps and apex activation time were similar between controls and P1 pigs (9.4 ± 1.6 vs. 7.8 ± 0.9 ms, p = 0.649), but significantly prolonged in P7 pigs (21.3 ± 5.1 ms, p < 0.001 vs. control, p < 0.001 vs. P1). Conduction velocity was similar between controls and P1 pigs (1.0 ± 0.2 vs. 1.1 ± 0.4 mm/ms, p = 0.852), but slower in P7 pigs (0.7 ± 0.2 mm/ms, p = 0.129 vs. control, p = 0.052 vs. P1). Overall, our data suggest that epicardial conduction dynamics are conserved in the setting of natural heart regeneration in piglets after P1 MI.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, United States
| | - Terrence Pong
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
| | | | - Haley J. Lucian
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
| | | | - Nicholas A. Tran
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
| | - Danielle M. Mullis
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
| | - Stefan Elde
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
| | - Yuko Tada
- Department of Cardiovascular Medicine, Stanford University, Stanford, CA, United States
| | - Sam W. Baker
- Department of Comparative Medicine, Stanford University, Stanford, CA, United States
| | - Caroline Y. Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
| | - Kevin J. Cyr
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
| | - Michael J. Paulsen
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
| | - Yuanjia Zhu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
- Department of Bioengineering, Stanford University, Stanford, CA, United States
| | - Anson M. Lee
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, United States
| | - Y. Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, United States
- Department of Bioengineering, Stanford University, Stanford, CA, United States
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Wang H, Hironaka CE, Mullis DM, Lucian HJ, Shin HS, Tran NA, Thakore AD, Anilkumar S, Wu MA, Paulsen MJ, Zhu Y, Baker SW, Woo YJ. A neonatal leporine model of age-dependent natural heart regeneration after myocardial infarction. J Thorac Cardiovasc Surg 2021; 164:e389-e405. [PMID: 34649718 DOI: 10.1016/j.jtcvs.2021.08.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 07/13/2021] [Accepted: 08/01/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Neonatal rodents and piglets naturally regenerate the injured heart after myocardial infarction. We hypothesized that neonatal rabbits also exhibit natural heart regeneration after myocardial infarction. METHODS New Zealand white rabbit kits underwent sham surgery or left coronary ligation on postnatal day 1 (n = 94), postnatal day 4 (n = 11), or postnatal day 7 (n = 52). Hearts were explanted 1 day postsurgery to confirm ischemic injury, at 1 week postsurgery to assess cardiomyocyte proliferation, and at 3 weeks postsurgery to assess left ventricular ejection fraction and scar size. Data are presented as mean ± standard deviation. RESULTS Size of ischemic injury as a percentage of left ventricular area was similar after myocardial infarction on postnatal day 1 versus on postnatal day 7 (42.3% ± 5.4% vs 42.3% ± 4.7%, P = .9984). Echocardiography confirmed severely reduced ejection fraction at 1 day after postnatal day 1 myocardial infarction (33.7% ± 5.3% vs 65.2% ± 5.5% for postnatal day 1 sham, P = .0001), but no difference at 3 weeks after postnatal day 1 myocardial infarction (56.0% ± 4.0% vs 58.0% ± 3.3% for postnatal day 1 sham, P = .2198). Ejection fraction failed to recover after postnatal day 4 myocardial infarction (49.2% ± 1.8% vs 58.5% ± 5.8% for postnatal day 4 sham, P = .0109) and postnatal day 7 myocardial infarction (39.0% ± 7.8% vs 60.2% ± 5.0% for postnatal day 7 sham, P < .0001). At 3 weeks after infarction, fibrotic scar represented 5.3% ± 1.9%, 14.3% ± 4.9%, and 25.4% ± 13.3% of the left ventricle area in the postnatal day 1, postnatal day 4, and postnatal day 7 groups, respectively. An increased proportion of peri-infarct cardiomyocytes expressed Ki67 (15.9% ± 1.8% vs 10.2% ± 0.8%, P = .0039) and aurora B kinase (4.0% ± 0.9% vs 1.5% ± 0.6%, P = .0088) after postnatal day 1 myocardial infarction compared with sham, but no increase was observed after postnatal day 7 myocardial infarction. CONCLUSIONS A neonatal leporine myocardial infarction model reveals that newborn rabbits are capable of age-dependent natural heart regeneration.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif; Stanford Cardiovascular Institute, Stanford University, Stanford, Calif
| | - Camille E Hironaka
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Danielle M Mullis
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Haley J Lucian
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Hye Sook Shin
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Nicholas A Tran
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Akshara D Thakore
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Shreya Anilkumar
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Matthew A Wu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Michael J Paulsen
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Yuanjia Zhu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif; Department of Bioengineering, Stanford University, Stanford, Calif
| | - Sam W Baker
- Department of Comparative Medicine, Stanford University, Stanford, Calif
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif; Stanford Cardiovascular Institute, Stanford University, Stanford, Calif; Department of Bioengineering, Stanford University, Stanford, Calif.
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