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Abo-Ouf AM, Mohamed AF, Abdelnaser Aboelsoud H, Geddawy A, Ibrahim HF. The possible effects of chronic administration of amiodarone hydrochloride on the seminiferous tubules of adult male albino rats: histological and biochemical study. Ultrastruct Pathol 2024:1-20. [PMID: 39324865 DOI: 10.1080/01913123.2024.2407330] [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: 08/13/2024] [Revised: 09/12/2024] [Accepted: 09/18/2024] [Indexed: 09/27/2024]
Abstract
Amiodarone hydrochloride is an antiarrhythmic agent that is widely prescribed. However, it has serious side effects that approximately affect the whole body organs. In our study, we aimed to assess the possible effects of chronic administration of two different doses of amiodarone hydrochloride on the oxidative and inflammatory parameters as well as the histological morphology and ultrastructure of the seminiferous tubules of adult male albino rats. Forty rats were divided into four groups; Control group 1: each rat did not receive any drugs at all. Control group 2: each rat received 3 ml of 0.16% methylcellulose, orally and daily for 4 weeks. Low dose amiodarone group: each rat received 3 ml of 0.16% methylcellulose contained 3.6 mg amiodarone, orally and daily for 4 weeks. High dose amiodarone group: each rat received 3 ml of 0.16% methylcellulose contained 7.2 mg amiodarone, orally and daily for 4 weeks. Blood samples were collected for measuring serum levels of malondialdehyde, superoxide dismutase, interleukin-6 and tumor necrosis factor-alpha. Testes specimens were examined to assess the morphological changes and the level of expression of caspase-3 apoptotic marker. The results indicated that; amiodarone hydrochloride could induce a dose-dependent toxicity, causing oxidative stress, inflammation, cellular degeneration, deposition of collagen and enhanced apoptosis in the seminiferous tubules.
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Affiliation(s)
- Amany M Abo-Ouf
- Department of basic medical sciences, College of Medicine, Prince Sattam Bin Abdulaziz University, Al- Kharj, Kingdom of Saudi Arabia
- Department of Anatomy, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Amany F Mohamed
- Department of Anatomy, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Heba Abdelnaser Aboelsoud
- Department of basic medical sciences, College of Medicine, Prince Sattam Bin Abdulaziz University, Al- Kharj, Kingdom of Saudi Arabia
- Department of Anatomy, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Ayman Geddawy
- Department of basic medical sciences, College of Medicine, Prince Sattam Bin Abdulaziz University, Al- Kharj, Kingdom of Saudi Arabia
- Department of Pharmacology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Heba F Ibrahim
- Department of basic medical sciences, College of Medicine, Prince Sattam Bin Abdulaziz University, Al- Kharj, Kingdom of Saudi Arabia
- Department of Histology and Cell Biology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Zhu X, Yang Q, Zhao Y, Sheng X, Zhang L. The effect of strain effect on WS 2 monolayer as a potential delivery carrier for anti-myocardial infarction drug: First-principles study. J Mol Model 2024; 30:313. [PMID: 39162905 DOI: 10.1007/s00894-024-06111-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Accepted: 08/15/2024] [Indexed: 08/21/2024]
Abstract
CONTEXT Myocardial infarction is one of the major health challenges. It is of great significance to develop potential delivery carriers for new anti-myocardial infarction drugs. In this paper, based on first-principles calculations, monolayer WS2 with excellent photoelectric properties was verified as a carrier for the anti-myocardial infarction drug amiodarone (AMD). Studies have shown that the WS2-adsorbed AMD system (WS2@AMD) maintains structural stability and produces an adsorption energy of-2.12 eV. Mulliken charge analysis shows that electrons are transferred from WS2 atoms to AMD atoms. Among them, C, N and O obtained the maximum values of 0.51,0.37 and 0.56 e electrons, respectively, while H and I lost the maximum values of 0.32 and 0.24 e electrons, respectively. The optical response of WS2 adsorbed AMD system is similar to that of WS2. The light absorption coefficients of the two materials in the near ultraviolet region and the visible region can reach the order of 105 cm-1 and 104 cm-1, and the strain makes the light absorption peak red-shifted. The feasibility of temperature-controlled release mechanism of WS2 as AMD carrier was discussed. This theoretical work helps to improve the performance of two-dimensional nanomaterials and make them better as drug delivery carriers to improve the therapeutic effect of myocardial infarction. These results indicate that the WS2 monolayer has potential applications in the development of drug delivery carriers. METHODS In this study, based on first-principles calculations, the CASTEP simulation software package was used to study the structure and properties of materials. The interaction between electrons and ions is considered by using Ultrasoft pseudopotentials. In order to eliminate the spurious interaction between adjacent structures caused by periodic calculations, a vacuum space no less than 18 Å is placed in the vertical direction if necessary. Different functions may produce different density functional calculation results. Due to the low sensitivity of the crystal structure to the calculation details, the PBE functional under the generalized gradient approximation (GGA) was initially used for structural optimization, and the energy cutoff value was set to 500 eV. Grimme 's dispersion correction was used to make the results more accurate. The Brillouin zone (BZ) is sampled by a 7 × 7 × 1 K-point grid to ensure the reliability of the original lattice calculation. The lattice vector and atomic coordinates are relaxed, and the tolerance of each atom is less than 0.01 eV/Å. The energy tolerance at the atomic position is less than 10-7 eV/atom. When calculating the band gap, the HSE06 hybrid functional is used to modify the optimized structure of the PBE functional to obtain more accurate results. Spin-polarized DFT calculations were performed to calculate the electronic structure.
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Affiliation(s)
- Xiao Zhu
- Jinhua University of Vocational Technical, Jinhua, 321017, China.
| | - Qinghua Yang
- Jinhua University of Vocational Technical, Jinhua, 321017, China
| | - Yanmin Zhao
- Jinhua University of Vocational Technical, Jinhua, 321017, China
| | - Xiusheng Sheng
- Jinhua University of Vocational Technical, Jinhua, 321017, China
| | - Liangzhong Zhang
- Jinhua University of Vocational Technical, Jinhua, 321017, China
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Yellepeddi VK, Hunt JP, Green DJ, McKnite A, Whelan A, Watt K. A physiologically-based pharmacokinetic modeling approach for dosing amiodarone in children on ECMO. CPT Pharmacometrics Syst Pharmacol 2024. [PMID: 39033462 DOI: 10.1002/psp4.13199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 05/27/2024] [Accepted: 06/21/2024] [Indexed: 07/23/2024] Open
Abstract
Extracorporeal membrane oxygenation (ECMO) is a cardiopulmonary bypass device commonly used to treat cardiac arrest in children. The American Heart Association guidelines for cardiopulmonary resuscitation (CPR) and emergency cardiovascular care recommend using amiodarone as a first-line agent to treat ventricular arrhythmias in children with cardiac arrest. However, there are no dosing recommendations for amiodarone to treat ventricular arrhythmias in pediatric patients on ECMO. Amiodarone has a high propensity for adsorption to the ECMO components due to its physicochemical properties leading to altered pharmacokinetics (PK) in ECMO patients. The change in amiodarone PK due to interaction with ECMO components may result in a difference in optimal dosing in patients on ECMO when compared with non-ECMO patients. To address this clinical knowledge gap, a physiologically-based pharmacokinetic model of amiodarone was developed in adults and scaled to children, followed by the addition of an ECMO compartment. The pediatric model included ontogeny functions of cytochrome P450 (CYP450) enzyme maturation across various age groups. The ECMO compartment was parameterized using the adsorption data of amiodarone obtained from ex vivo studies. Model predictions captured observed concentrations of amiodarone in pediatric patients with ECMO well with an average fold error between 0.5 and 2. Model simulations support an amiodarone intravenous (i.v) bolus dose of 22 mg/kg (neonates), 13 mg/kg (infants), 8 mg/kg (children), and 6 mg/kg (adolescents). This PBPK modeling approach can be applied to explore the dosing of other drugs used in children on ECMO.
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Affiliation(s)
- Venkata K Yellepeddi
- Division of Clinical Pharmacology, Department of Pediatrics, Spencer Fox Eccles School of Medicine, University of Utah, Salt Lake City, Utah, USA
- Department of Molecular Pharmaceutics, College of Pharmacy, University of Utah, Salt Lake City, Utah, USA
| | - John Porter Hunt
- Division of Clinical Pharmacology, Department of Pediatrics, Spencer Fox Eccles School of Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Danielle J Green
- Division of Clinical Pharmacology, Department of Pediatrics, Spencer Fox Eccles School of Medicine, University of Utah, Salt Lake City, Utah, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of Utah, Salt Lake City, Utah, USA
| | - Autumn McKnite
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, Utah, USA
| | - Aviva Whelan
- Division of Clinical Pharmacology, Department of Pediatrics, Spencer Fox Eccles School of Medicine, University of Utah, Salt Lake City, Utah, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of Utah, Salt Lake City, Utah, USA
| | - Kevin Watt
- Division of Clinical Pharmacology, Department of Pediatrics, Spencer Fox Eccles School of Medicine, University of Utah, Salt Lake City, Utah, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of Utah, Salt Lake City, Utah, USA
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Kilciksiz CM, Bennett J, Rahman T. Concurrent Clozapine and Amiodarone Treatment. J Acad Consult Liaison Psychiatry 2024:S2667-2960(24)00063-6. [PMID: 38852623 DOI: 10.1016/j.jaclp.2024.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/08/2024] [Accepted: 06/01/2024] [Indexed: 06/11/2024]
Affiliation(s)
- Can Misel Kilciksiz
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO; Washington University School of Medicine, St. Louis, MO.
| | - Jenna Bennett
- Washington University School of Medicine, St. Louis, MO
| | - Tahir Rahman
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO; Washington University School of Medicine, St. Louis, MO
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Samadi Takaldani AH, Negaresh M, Salimi M, Javanshir N. Amiodarone-induced blue man syndrome: a case report. J Med Case Rep 2023; 17:248. [PMID: 37291615 DOI: 10.1186/s13256-023-03954-6] [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: 12/26/2022] [Accepted: 04/26/2023] [Indexed: 06/10/2023] Open
Abstract
BACKGROUND Amiodarone is one of the most commonly used and effective antiarrhythmic drugs to treat ventricular and supraventricular arrhythmias. Besides its advantages, this drug has side effects like liver, digestive, pulmonary, thyroid, neural, skin, optical, hematologic, psychiatric, and cardiac complications. Blue-gray cutaneous discoloration, also known as blue man syndrome, is an undesirable and unusual side-effect of chronic amiodarone therapy in less than 3% of patients. CASE PRESENTATION This report presents a 51-year-old Caucasian man treated for the past 3 years with amiodarone and implantable cardioverter defibrillators due to his ventricular arrhythmia and cardiomyopathy, without any follow-up visit to his doctor. He was referred to the medical center for blue-gray discoloration on his nose and cheeks, which had started to appear in the last 3 weeks. CONCLUSION Considering the findings obtained in this report and the numerous side effects of amiodarone, the blue-man syndrome is a rare yet important finding of this drug which may influence the patient's daily life. It is recommended that all patients under treatment with this drug be notified about its side effects and visit their doctors regularly. Regarding the high therapeutic value of this drug, the lack of any association between blue man syndrome and other complications, and the related aesthetic problems, the role of the caregiver becomes much more critical in the prescription of amiodarone.
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Affiliation(s)
- Ali Hossein Samadi Takaldani
- Department of Internal Medicine (Pulmonology Division), School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mohammad Negaresh
- Department of Internal Medicine, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Maryam Salimi
- Department of Internal Medicine, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Nima Javanshir
- Faculty of Medicine, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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Hrudikova E, Grundmann M, Kolek M, Urinovska R, Kacirova I. Therapeutic monitoring of amiodarone and desethylamiodarone after surgical ablation of atrial fibrillation-evaluation of the relationship between clinical effect and the serum concentration. Saudi Pharm J 2021; 29:369-376. [PMID: 34135663 PMCID: PMC8180463 DOI: 10.1016/j.jsps.2021.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 03/06/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Association between clinical effect and serum concentration of amiodarone (AMI) and its active metabolite desethylamidarone (DEA) in patients after surgical ablation (SA) of atrial fibrillation (AF) has not yet been studied. AIMS We wanted to find a correlation between AMI and DEA serum concentration and maintaining sinus rhythm (SR) after SA of AF. METHODS Sixty eight patients with AF who had undergone surgical ablation between 2014 and 2017 were included in a single-centre, prospective, observational study. Maintaining of SR was evaluated by standard 12-lead ECG and 24-hour Holter ECG monitoring at months 1, 3, 6 and 12 following surgery. Therapeutic monitoring of AMI and DEA concentrations was done to optimize therapy and adverse effects were followed up. RESULTS We have noticed a high success rate in maintaining of SR (overall 83%). The median of serum concentration of AMI was 0.81 mg/L (range 0.16-2.35 mg/L) and DEA 0.70 mg/l (range 0.19-2.63 mg/L). No significant differences were found in the serum concentratration of AMI, DEA or DEA/AMI concentratration ratios between patients with SR and persistent supraventricular tachyarrhythmia except on the second outpatient visit. We observed significant correlation between serum concentration of DEA and thyroid-stimulating hormone elevation. CONCLUSION We confirmed the efficacy of AMI and DEA at the measured serum concentrations. However, analysis of these concentrations alone cannot replace assessment of the clinical response for treatment. Establishment of individual AMI (and DEA) concentrations at which the optimal therapeutic response is achieved seems to be advantageous. Therapeutic monitoring of AMI and DEA is helpful in personalised pharmacotherapy after SA of AF.
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Key Words
- AF, atrial fibrillation
- ALT, alanine transaminase
- AMI, amiodarone
- AST, aspartate transaminase
- Amiodarone
- Atrial fibrillation
- CABG, coronary artery bypass graft
- DEA, desethylamiodarone
- Desethylamiodarone
- ECG, electrocardiogram
- GMT, gama glutamyl transferase
- Maze procedure
- SA, surgical ablation
- SR, sinus rhythm
- ST, supraventricular tachyarrhythmia
- Serum concentration
- Sinus rhythm
- TDM, therapeutic drug monitoring
- TSH, thyroid-stimulating hormone
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Affiliation(s)
- Erika Hrudikova
- Department of Clinical Pharmacology, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic
- Department of Clinical Pharmacology, Department of Laboratory Medicine, University Hospital Ostrava, 17. Listopadu 1790, 708 52 Ostrava, Czech Republic
| | - Milan Grundmann
- Department of Clinical Pharmacology, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic
| | - Martin Kolek
- Department of Clinic Subjects, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic
- Department of Cardiac Surgery, University Hospital Ostrava, 17. Listopadu 1790, 708 52 Ostrava, Czech Republic
| | - Romana Urinovska
- Department of Clinical Pharmacology, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic
- Department of Clinical Pharmacology, Department of Laboratory Medicine, University Hospital Ostrava, 17. Listopadu 1790, 708 52 Ostrava, Czech Republic
| | - Ivana Kacirova
- Department of Clinical Pharmacology, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic
- Department of Clinical Pharmacology, Department of Laboratory Medicine, University Hospital Ostrava, 17. Listopadu 1790, 708 52 Ostrava, Czech Republic
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Lonare S, Hazarika M, Das CK. Antiviral effect of amiodarone and its possible role in COVID-19: An appraisal. Indian J Pharmacol 2021; 52:533-534. [PMID: 33666199 PMCID: PMC8092184 DOI: 10.4103/ijp.ijp_714_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Snehal Lonare
- Department of Pharmacology and Toxicology, GADVASU, Ludhiana, Punjab, India
| | - Mythili Hazarika
- Department of Psychiatry, Guwahati Medical College Hospital, Affiliated to Srimanta Sankaradeva University of Health Sciences, Assam, India
| | - Chandra Kr Das
- Associate Professor of Clinical Psychology, Gauhati Medical College and Hospital Affiliated to Srimanta Sankaradeva University of Health Sciences, Assam, India
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Banach M, Rudkowska M, Sumara A, Borowicz-Reutt K. Amiodarone Enhances Anticonvulsive Effect of Oxcarbazepine and Pregabalin in the Mouse Maximal Electroshock Model. Int J Mol Sci 2021; 22:ijms22031041. [PMID: 33494393 PMCID: PMC7865888 DOI: 10.3390/ijms22031041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 11/17/2022] Open
Abstract
Accumulating experimental studies show that antiarrhythmic and antiepileptic drugs share some molecular mechanisms of action and can interact with each other. In this study, the influence of amiodarone (a class III antiarrhythmic drug) on the antiseizure action of four second-generation antiepileptic drugs was evaluated in the maximal electroshock model in mice. Amiodarone, although ineffective in the electroconvulsive threshold test, significantly potentiated the antielectroshock activity of oxcarbazepine and pregabalin. Amiodarone, given alone or in combination with oxcarbazepine, lamotrigine, or topiramate, significantly disturbed long-term memory in the passive-avoidance task in mice. Brain concentrations of antiepileptic drugs were not affected by amiodarone. However, the brain concentration of amiodarone was significantly elevated by oxcarbazepine, topiramate, and pregabalin. Additionally, oxcarbazepine and pregabalin elevated the brain concentration of desethylamiodarone, the main metabolite of amiodarone. In conclusion, potentially beneficial action of amiodarone in epilepsy patients seems to be limited by neurotoxic effects of amiodarone. Although results of this study should still be confirmed in chronic protocols of treatment, special precautions are recommended in clinical conditions. Coadministration of amiodarone, even at low therapeutic doses, with antiepileptic drugs should be carefully monitored to exclude undesired effects related to accumulation of the antiarrhythmic drug and its main metabolite, desethylamiodarone.
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Affiliation(s)
- Monika Banach
- Independent Unit of Experimental Neuropathophysiology, Medical University of Lublin, Jaczewskiego 8b, PL-20-090 Lublin, Poland; (M.B.); (M.R.)
| | - Monika Rudkowska
- Independent Unit of Experimental Neuropathophysiology, Medical University of Lublin, Jaczewskiego 8b, PL-20-090 Lublin, Poland; (M.B.); (M.R.)
| | - Agata Sumara
- Department of Pathophysiology, Medical University of Lublin, Jaczewskiego 8b, PL-20-090 Lublin, Poland;
| | - Kinga Borowicz-Reutt
- Independent Unit of Experimental Neuropathophysiology, Medical University of Lublin, Jaczewskiego 8b, PL-20-090 Lublin, Poland; (M.B.); (M.R.)
- Correspondence:
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Pedro L, Rudewicz PJ. Analysis of Live Single Cells by Confocal Microscopy and High-Resolution Mass Spectrometry to Study Drug Uptake, Metabolism, and Drug-Induced Phospholipidosis. Anal Chem 2020; 92:16005-16015. [PMID: 33280372 DOI: 10.1021/acs.analchem.0c03534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The analysis of large numbers of cells from a population results in information that does not reflect differences in cell phenotypes. Individual variations in cellular drug uptake, metabolism, and response to drug treatment may have profound effects on cellular survival and lead to the development of certain disease states, drug persistence, and resistance. Herein, we present a method that combines live cell confocal microscopy imaging with high-resolution mass spectrometry to achieve absolute cell quantification of the drug amiodarone (AMIO) and its major metabolite, N-desethylamiodarone (NDEA), in single liver cells (HepG2 and HepaRG cells). The method uses a prototype system that integrates a confocal microscope with an XYZ stage robot to image and automatically sample selected cells from a sample compartment, which is kept under growth conditions, with nanospray tips. Besides obtaining the distributions of AMIO and NDEA cell concentrations across a population of individual cells, as well as variabilities in drug metabolism, the effect of these on phospholipidosis and cell morphology was studied. The method was suited to identify subpopulations of cells that metabolized less drug and to correlate cell drug concentrations with cell phospholipid content, cell volume, sphericity, and other cell phenotypic features. Using principal component analysis (PCA), the treated cells could be clearly distinguished from vehicle control cells (0 μM AMIO) and HepaRG cells from HepG2 cells. The potential of using multidimensional and multimodal information collected from single cells to build predictive models for cell classification is demonstrated.
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Affiliation(s)
- Liliana Pedro
- Novartis Institutes for BioMedical Research, Emeryville, California 94608, United States
| | - Patrick J Rudewicz
- Novartis Institutes for BioMedical Research, Emeryville, California 94608, United States
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Hoemann B, Takayama H, Jennings DL, Han J, Ando M, Restaino S, Colombo P, Farr M, Naka Y, Takeda K. Discontinuing amiodarone treatment prior to heart transplantation lowers incidence of severe primary graft dysfunction. Clin Transplant 2020; 34:e13779. [PMID: 31903624 DOI: 10.1111/ctr.13779] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 12/14/2019] [Accepted: 12/18/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Recent studies have shown an increased incidence of primary graft dysfunction (PGD) in patients treated with amiodarone prior to orthotopic heart transplant (OHT). We hypothesized that discontinuation of amiodarone before OHT may lower the incidence of severe PGD. METHODS This was a single-center retrospective study of 381 adult OHT recipients between January 2010 and June 2017. Within 6 months prior to OHT, 197 did not receive amiodarone (Group 1), 142 continued amiodarone to OHT (Group 2), and 42 had amiodarone treatment discontinued before OHT (Group 3). RESULTS 53 (13.9%) participants developed severe PGD, 13 (6.6%) of which were in Group 1, 36 (25.4%) were in Group 2, and 4 (9.5%) were in Group 3 (P < .001). Multivariable analysis revealed continued amiodarone treatment to OHT (Group 2; OR, 3.70; 95% CI, 1.26-10.88; P = .018) to be an independent risk factor for the development of severe PGD when Group 1 served as the reference group. Moreover, patients in Group 3 had no difference in the risk of severe PGD (OR = 0.416, 95% CI = 0.08-2.15; P = .296). CONCLUSION We found that discontinuing amiodarone treatment prior to OHT resulted a lower incidence of severe PGD.
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Affiliation(s)
- Benjamin Hoemann
- Division of Cardiac Surgery, Department of Surgery, Columbia University Medical Center, New York, New York
| | - Hiroo Takayama
- Division of Cardiac Surgery, Department of Surgery, Columbia University Medical Center, New York, New York
| | - Douglas L Jennings
- Department of Pharmacy, Columbia University Medical Center, New York, New York
| | - Jiho Han
- Division of Cardiac Surgery, Department of Surgery, Columbia University Medical Center, New York, New York
| | - Masahiko Ando
- Division of Cardiac Surgery, Department of Surgery, Columbia University Medical Center, New York, New York
| | - Susan Restaino
- Division of Cardiology, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Paolo Colombo
- Division of Cardiology, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Maryjane Farr
- Division of Cardiology, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Yoshifumi Naka
- Division of Cardiac Surgery, Department of Surgery, Columbia University Medical Center, New York, New York
| | - Koji Takeda
- Division of Cardiac Surgery, Department of Surgery, Columbia University Medical Center, New York, New York
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11
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Study on the Role of the Inclusion Complexes with 2-Hydroxypropyl-β-cyclodextrin for Oral Administration of Amiodarone. INT J POLYM SCI 2019. [DOI: 10.1155/2019/1695189] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The aim of this study was to improve the solubility of amiodarone hydrochloride (AMD) and the drug release using its inclusion complexes with 2-hydroxypropyl-β-cyclodextrin (HP-β-CD). The inclusion complexes were prepared by coprecipitation and freeze-drying. The solubility enhancement of AMD/HP-β-CD inclusion complexes by 4–22 times was evaluated by the phase solubility method. The inclusion complexes were studied both in solution and in solid state by spectroscopic methods, dynamic light scattering (DLS) and zeta potential analysis, SEM, and DSC. The formulations of AMD/HP-β-CD inclusion complexes both as powdered form and as matrix tablets showed superior pharmacokinetic performance in improving loading and release properties in respect of those of the insoluble AMD drug. In vitro kinetic study reveals a complex mechanism of release occurring in three steps: the first one being attributed to a burst effect and the other two to different bonding existing in inclusion complexes. An in vivo test on matrix tablets containing Kollidon® and chitosan also reveals a multiple (at least two) peaks release diagram because of both structures of the inclusion complexes and also of different sites of absorption in biological media (digestive tract).
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12
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van Bavel JJA, Vos MA, van der Heyden MAG. Cardiac Arrhythmias and Antiarrhythmic Drugs: An Autophagic Perspective. Front Physiol 2018. [PMID: 29527175 PMCID: PMC5829447 DOI: 10.3389/fphys.2018.00127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Degradation of cellular material by lysosomes is known as autophagy, and its main function is to maintain cellular homeostasis for growth, proliferation and survival of the cell. In recent years, research has focused on the characterization of autophagy pathways. Targeting of autophagy mediators has been described predominantly in cancer treatment, but also in neurological and cardiovascular diseases. Although the number of studies is still limited, there are indications that activity of autophagy pathways increases under arrhythmic conditions. Moreover, an increasing number of antiarrhythmic and non-cardiac drugs are found to affect autophagy pathways. We, therefore, suggest that future work should recognize the largely unaddressed effects of antiarrhythmic agents and other classes of drugs on autophagy pathway activation and inhibition.
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Affiliation(s)
- Joanne J A van Bavel
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Marc A Vos
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Marcel A G van der Heyden
- Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
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Wei A, Peng J, Gu Z, Li J. QTc prolongation and torsades de pointes due to a coadministration of fluoxetine and amiodarone in a patient with implantable cardioverter-defibrillator: Case report and review of the literature. Medicine (Baltimore) 2017; 96:e9071. [PMID: 29245320 PMCID: PMC5728935 DOI: 10.1097/md.0000000000009071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
RATIONALE Drug-induced prolongation of the corrected QT interval (QTc) may lead to serious and potentially life-threatening ventricular tachyarrhythmia, such as torsades de pointes (Tdp), which is worthy of clinical attention. Here, we report 1 case of Tdp after a coadministration of fluoxetine and amiodarone. PATIENT CONCERNS A 62-year-old Chinese male who placed with the implanted cardioverter-defibrillator (ICD) appeared the QTc prolongation and Tdp after the concurrent administration of fluoxetine and amiodarone. DIAGNOSES Torsades de pointes (Tdp). INTERVENTIONS The patient was treated with magnesium and potassium immediately. Her ICD-brady pacing mode was reprogrammed to 90 bpm. Meanwhile, both of fluoxetine and amiodarone were discontinued. OUTCOMES The further episodes of Tdp were prevented. After a few days, the QTc gradually decreased without clinically significant arrhythmias. LESSONS The present case demonstrates that a potential drug-drug interaction (DDI) may lead to a life-threatening drug adverse reaction (ADR) especially in special subjects. Therefore, clinicians should closely monitor the electrocardiogram (ECG) when QTc-prolonging agents are given to patients with cardiac abnormalities, and avoid combining 2 QTc-prolonging drugs.
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Affiliation(s)
- Anhua Wei
- Department of Pharmacy, Tongji Hospital
| | - Jinlan Peng
- Department of Endocrinology, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Zhichun Gu
- Department of Pharmacy, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Juan Li
- Department of Pharmacy, Tongji Hospital
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