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Tejedor S, Dolz‐Pérez I, Decker CG, Hernándiz A, Diez JL, Álvarez R, Castellano D, García NA, Ontoria‐Oviedo I, Nebot VJ, González‐King H, Igual B, Sepúlveda P, Vicent MJ. Polymer Conjugation of Docosahexaenoic Acid Potentiates Cardioprotective Therapy in Preclinical Models of Myocardial Ischemia/Reperfusion Injury. Adv Healthc Mater 2021; 10:e2002121. [PMID: 33720548 DOI: 10.1002/adhm.202002121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/16/2021] [Indexed: 01/16/2023]
Abstract
While coronary angioplasty represents an effective treatment option following acute myocardial infarction, the reperfusion of the occluded coronary artery can prompt ischemia-reperfusion (I/R) injury that significantly impacts patient outcomes. As ω-3 polyunsaturated fatty acids (PUFAs) have proven, yet limited cardioprotective abilities, an optimized polymer-conjugation approach is reported that improves PUFAs bioavailability to enhance cardioprotection and recovery in animal models of I/R-induced injury. Poly-l-glutamic acid (PGA) conjugation improves the solubility and stability of di-docosahexaenoic acid (diDHA) under physiological conditions and protects rat neonatal ventricular myocytes from I/R injury by reducing apoptosis, attenuating autophagy, inhibiting reactive oxygen species generation, and restoring mitochondrial membrane potential. Enhanced protective abilities are associated with optimized diDHA loading and evidence is provided for the inherent cardioprotective potential of PGA itself. Pretreatment with PGA-diDHA before reperfusion in a small animal I/R model provides for cardioprotection and limits area at risk (AAR). Furthermore, the preliminary findings suggest that PGA-diDHA administration in a swine I/R model may provide cardioprotection, limit edema and decrease AAR. Overall, the evaluation of PGA-diDHA in relevant preclinical models provides evidence for the potential of polymer-conjugated PUFAs in the mitigation of I/R injury associated with coronary angioplasty.
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Affiliation(s)
- Sandra Tejedor
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Irene Dolz‐Pérez
- Polymer Therapeutics Laboratory Centro de Investigación Príncipe Felipe Av. Eduardo Primo Yúfera 3 Valencia E‐46012 Spain
| | - Caitlin G. Decker
- Polymer Therapeutics Laboratory Centro de Investigación Príncipe Felipe Av. Eduardo Primo Yúfera 3 Valencia E‐46012 Spain
| | - Amparo Hernándiz
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Jose L. Diez
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Raquel Álvarez
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Delia Castellano
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Nahuel A. García
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Imelda Ontoria‐Oviedo
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Vicent J. Nebot
- Polypeptide Therapeutic Solutions S.L. Av. Benjamin Franklin 19, Paterna Valencia 46980 Spain
| | - Hernán González‐King
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Begoña Igual
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - Pilar Sepúlveda
- Regenerative Medicine and Heart Transplantation Unit Instituto de Investigación Sanitaria La Fe Avda. Fernando Abril Martorell 106 Valencia 46026 Spain
| | - María J. Vicent
- Polymer Therapeutics Laboratory Centro de Investigación Príncipe Felipe Av. Eduardo Primo Yúfera 3 Valencia E‐46012 Spain
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Panyala A, Chinde S, Kumari SI, Rahman MF, Mahboob M, Kumar JM, Grover P. Comparative study of toxicological assessment of yttrium oxide nano- and microparticles in Wistar rats after 28 days of repeated oral administration. Mutagenesis 2020; 34:181-201. [PMID: 30753658 DOI: 10.1093/mutage/gey044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 10/25/2018] [Accepted: 12/18/2018] [Indexed: 12/20/2022] Open
Abstract
Despite their enormous advantages, nanoparticles (NPs) have elicited disquiet over their safety. Among the numerous NPs, yttrium oxide (Y2O3) NPs are utilised in many applications. However, knowledge about their toxicity is limited, and it is imperative to investigate their potential adverse effects. Therefore, this study explored the effect of 28 days of repeated oral exposure of Wistar rats to 30, 120 and 480 mg/kg body weight (bw) per day of Y2O3 NPs and microparticles (MPs). Before initiation of the study, characterisation of the particles by transmission electron microscopy, dynamic light scattering, Brunauer-Emmett-Teller and laser Doppler velocimetry was undertaken. Genotoxicity was evaluated using the comet and micronucleus (MN) assays. Biochemical markers aspartate transaminase, alanine transaminase, alkaline phosphatase, malondialdehyde, superoxide dismutase, reduced glutathione, catalase and lactate dehydrogenase in serum, liver and kidney were determined. Bioaccumulation of the particles was analysed by inductively coupled plasma optical emission spectrometry. The results of the comet and MN assays showed significant differences between the control and groups treated with 120 and 480 mg/kg bw/day Y2O3 NPs. Significant biochemical alterations were also observed at 120 and 480 mg/kg bw/day. Haematological and histopathological changes were documented. Yttrium (Y) biodistribution was detected in liver, kidney, blood, intestine, lungs, spleen, heart and brain in a dose- and the organ-dependent manner in both the particles. Further, the highest levels of Y were found in the liver and the lowest in the brain of the treated rats. More of the Y from NPs was excreted in the urine than in the faeces. Furthermore, NP-treated rats exhibited much higher absorption and tissue accumulation. These interpretations furnish rudimentary data of the apparent genotoxicity of NPs and MPs of Y2O3 as well as the biodistribution of Y. A no-observed adverse effect level of 30 mg/kg bw/day was found after oral exposure of rats to Y2O3 NPs.
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Affiliation(s)
- Archana Panyala
- Toxicology Unit, Applied Biology Division, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
- Academy of Scientific and Innovative Research, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Srinivas Chinde
- Toxicology Unit, Applied Biology Division, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Srinivas Indu Kumari
- Toxicology Unit, Applied Biology Division, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
- Academy of Scientific and Innovative Research, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Mohammad Fazlur Rahman
- Toxicology Unit, Applied Biology Division, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Mohammed Mahboob
- Toxicology Unit, Applied Biology Division, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Jerald Mahesh Kumar
- Animal House Facility, CSIR - Centre for Cellular and Molecular Biology, Hyderabad, Telangana, India
| | - Paramjit Grover
- Toxicology Unit, Applied Biology Division, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
- Academy of Scientific and Innovative Research, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana, India
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Vasić M, Lončar-Turukalo T, Tasić T, Matić M, Glumac S, Bajić D, Popović B, Japundžić-Žigon N. Cardiovascular variability and β-ARs gene expression at two stages of doxorubicin - Induced cardiomyopathy. Toxicol Appl Pharmacol 2018; 362:43-51. [PMID: 30342983 DOI: 10.1016/j.taap.2018.10.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/17/2018] [Accepted: 10/16/2018] [Indexed: 12/16/2022]
Abstract
Using comprehensive analysis of heart rate (HRV) and blood pressure (BPV) short-term variability we estimated the time course of changes of autonomic nervous system remodeling in two stages of doxorubicin-induced cardiomyopathy (DCM). We also investigated the level of gene expression of cardiac β-1 (β-1AR) and β-2 (β-2AR) adrenoceptors. Experiments were performed in adult male Wistar rats equipped with indwelling catheters for BP recording and blood withdrawal. A 15 mg/kg total cumulative dose of doxorubicin was injected i.p. to rats to induce DCM or saline for control (n=18). Rats were assessed for general toxicity, cardiovascular hemodynamic and echocardiography before treatment (n=6), 35 days (DOX35; n=6) and 70 days (DOX70; n=6) post-treatment. HRV was evaluated by spectral analysis, Poincaré plots, sample and approximate entropy. Expression of β-1AR and β-2AR mRNA was evaluated by RT-qPCR. Doxorubicin-treated rats exhibited poor general condition and lower survival than saline-treated rats. In DOX35 rats, there were no echocardiography signs of decompensation, no increase in serum cardiac troponins, but there was an increase of HRV and decrease of HR complexity. In these rats typical microscopic signs of cardiotoxicity were seen along with over-expression of β-1AR mRNA. 70 days post-treatment echocardiography revealed signs of decompensation and serum cardiac troponin T was increased. At this stage BPV decreased. In conclusion, HRV increase matches transient over-expression of cardiac β-1AR mRNA in compensate stage of DCM while decompensate stage of DCM is characterized by a decrease of BPV and no changes in β-1AR and β-2AR gene expression.
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Affiliation(s)
- Marko Vasić
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | | | - Tatjana Tasić
- Faculty of Stomatology, University of Belgrade, Belgrade, Serbia
| | - Marija Matić
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sofija Glumac
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Dragana Bajić
- Faculty of Technical, Sciences University of Novi Sad, Novi Sad, Serbia
| | - Branka Popović
- Faculty of Stomatology, University of Belgrade, Belgrade, Serbia
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Chen M, Li Y, Zhou J, Yang Z, Wang Z, Yang Y, Zhang H, Li Z, Mei X. In vitro toxicity assessment of nanocrystals in tissue-type cells and macrophage cells. J Appl Toxicol 2017; 38:656-664. [DOI: 10.1002/jat.3570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 10/22/2017] [Accepted: 10/29/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Meiling Chen
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
- Hunan Research Center for Safety Evaluation of Drugs; Changsha China
| | - Ying Li
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
| | - Jiezhao Zhou
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
| | - Zhenbo Yang
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
| | - Zhiyuan Wang
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
| | - Yang Yang
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
| | - Hui Zhang
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
| | - Zhiping Li
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
| | - Xingguo Mei
- Department of Pharmaceutical Sciences; Beijing Institute of Pharmacology and Toxicology; Beijing China
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Japundžić-Žigon N, Šarenac O, Lozić M, Vasić M, Tasić T, Bajić D, Kanjuh V, Murphy D. Sudden death: Neurogenic causes, prediction and prevention. Eur J Prev Cardiol 2017; 25:29-39. [PMID: 29053016 PMCID: PMC5724572 DOI: 10.1177/2047487317736827] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Sudden death is a major health problem all over the world. The most common causes of sudden death are cardiac but there are also other causes such as neurological conditions (stroke, epileptic attacks and brain trauma), drugs, catecholamine toxicity, etc. A common feature of all these diverse pathologies underlying sudden death is the imbalance of the autonomic nervous system control of the cardiovascular system. This paper reviews different pathologies underlying sudden death with emphasis on the autonomic nervous system contribution, possibilities of early diagnosis and prognosis of sudden death using various clinical markers including autonomic markers (heart rate variability and baroreflex sensitivity), present possibilities of management and promising prevention by electrical neuromodulation.
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Affiliation(s)
| | | | - Maja Lozić
- 1 Faculty of Medicine, University of Belgrade, Serbia
| | - Marko Vasić
- 1 Faculty of Medicine, University of Belgrade, Serbia
| | - Tatjana Tasić
- 1 Faculty of Medicine, University of Belgrade, Serbia
| | - Dragana Bajić
- 2 Faculty of Technical Sciences, University of Novi Sad, Serbia
| | - Vladimir Kanjuh
- 3 Department of Medical Sciences, Serbian Academy of Sciences and Arts, Serbia
| | - David Murphy
- 4 School of Clinical Sciences, University of Bristol, UK
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