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Rivas VN, Stern JA, Ueda Y. The Role of Personalized Medicine in Companion Animal Cardiology. Vet Clin North Am Small Anim Pract 2023; 53:1255-1276. [PMID: 37423841 PMCID: PMC11184409 DOI: 10.1016/j.cvsm.2023.05.016] [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] [Indexed: 07/11/2023]
Abstract
Cardiomyopathies remain one of the most common inherited cardiac diseases in both human and veterinary patients. To date, well over 100 mutated genes are known to cause cardiomyopathies in humans with only a handful known in cats and dogs. This review highlights the need and use of personalized one-health approaches to cardiovascular case management and advancement in pharmacogenetic-based therapy in veterinary medicine. Personalized medicine holds promise in understanding the molecular basis of disease and ultimately will unlock the next generation of targeted novel pharmaceuticals and aid in the reversal of detrimental effects at a molecular level.
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Affiliation(s)
- Victor N Rivas
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA; Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1038 William Moore Drive, Raleigh, NC 27606, USA
| | - Joshua A Stern
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA 95616, USA; Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1038 William Moore Drive, Raleigh, NC 27606, USA
| | - Yu Ueda
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1038 William Moore Drive, Raleigh, NC 27606, USA.
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2
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Miller E, Sampson CU, Desai AA, Karnes JH. Differential drug response in pulmonary arterial hypertension: The potential for precision medicine. Pulm Circ 2023; 13:e12304. [PMID: 37927610 PMCID: PMC10621006 DOI: 10.1002/pul2.12304] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 10/05/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a rare, complex, and deadly cardiopulmonary disease. It is characterized by changes in endothelial cell function and smooth muscle cell proliferation in the pulmonary arteries, causing persistent vasoconstriction, resulting in right heart hypertrophy and failure. There are multiple drug classes specific to PAH treatment, but variation between patients may impact treatment response. A small subset of patients is responsive to pulmonary vasodilators and can be treated with calcium channel blockers, which would be deleterious if prescribed to a typical PAH patient. Little is known about the underlying cause of this important difference in vasoresponsive PAH patients. Sex, race/ethnicity, and pharmacogenomics may also factor into efficacy and safety of PAH-specific drugs. Research has indicated that endothelin receptor antagonists may be more effective in women and there have been some minor differences found in certain races and ethnicities, but these findings are muddled by the impact of socioeconomic factors and a lack of representation of non-White patients in clinical trials. Genetic variants in genes such as CYP3A5, CYP2C9, PTGIS, PTGIR, GNG2, CHST3, and CHST13 may influence the efficacy and safety of certain PAH-specific drugs. PAH research faces many challenges, but there is potential for new methodologies to glean new insights into PAH development and treatment.
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Affiliation(s)
- Elise Miller
- Department of Pharmacy Practice and ScienceUniversity of Arizona R. Ken Coit College of PharmacyTucsonArizonaUSA
| | - Chinwuwanuju Ugo‐Obi Sampson
- Department of Pharmacy Practice and ScienceUniversity of Arizona R. Ken Coit College of PharmacyTucsonArizonaUSA
| | - Ankit A. Desai
- Department of MedicineIndiana University School of MedicineIndianapolisIndianaUSA
| | - Jason H. Karnes
- Department of Pharmacy Practice and ScienceUniversity of Arizona R. Ken Coit College of PharmacyTucsonArizonaUSA
- Department of Biomedical InformaticsVanderbilt University School of MedicineNashvilleTennesseeUSA
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3
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Zhang J, Wang R. Changes in CYP3A4 Enzyme Expression and Biochemical Markers Under Acute Hypoxia Affect the Pharmacokinetics of Sildenafil. Front Physiol 2022; 13:755769. [PMID: 35153825 PMCID: PMC8829446 DOI: 10.3389/fphys.2022.755769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 01/03/2022] [Indexed: 12/16/2022] Open
Abstract
To investigate the effects of pathological, physiological, biochemical and metabolic enzymes CYP3A4 on the pharmacokinetics of sildenafil under acute hypoxia, rats were randomly divided into the plain group (50 m above sea level), acute plateau group 1 (2300 m above sea level), and acute plateau group 2 (4300 m above sea level), and blood samples and liver tissues were collected. Our results showed that the blood gas, physiological and biochemical indexes of rats changed under acute hypoxia, and the protein expression of CYP3A4 enzyme decreased. The process of absorption, distribution, metabolism and excretion of sildenafil in rats has changed. Compared with the P group, the area under the drug-time curve and the average resident in the H2 group increased to 213.32 and 72.34%, respectively. The half-life and peak concentration increased by 44.27 and 133.67%, respectively. The clearance rate and apparent distribution volume decreased to 69.13 and 46.75%, respectively. There were no statistical differences in the pharmacokinetic parameters between the P group and the H1 group. In conclusion, the pharmacokinetic changes of sildenafil have a multi-factor regulation mechanism, and changes in blood gas, pathology, and biochemical indicators and metabolic enzymes affect the absorption, distribution, excretion, and metabolism of sildenafil, respectively. This study provides experimental evidence and new ideas for the rational use of sildenafil under acute hypoxic conditions.
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Affiliation(s)
- Juanhong Zhang
- College of Life Science, Northwest Normal University, Lanzhou, China.,Key Laboratory for Prevention and Remediation of Plateau Environmental Damage, 940th Hospital of Joint Logistics Support Force of CPLA, Lanzhou, China.,School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Rong Wang
- College of Life Science, Northwest Normal University, Lanzhou, China.,Key Laboratory for Prevention and Remediation of Plateau Environmental Damage, 940th Hospital of Joint Logistics Support Force of CPLA, Lanzhou, China.,School of Pharmacy, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
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4
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Meloche M, Leclair G, Jutras M, Oussaïd E, Gaulin MJ, Mongrain I, Busseuil D, Tardif JC, Dubé MP, de Denus S. Leveraging large observational studies to discover genetic determinants of drug concentrations: A proof-of-concept study. Clin Transl Sci 2022; 15:1063-1073. [PMID: 35122397 PMCID: PMC9010273 DOI: 10.1111/cts.13230] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/16/2022] Open
Abstract
Large, observational genetic studies are commonly used to identify genetic factors associated with diseases and disease‐related traits. Such cohorts have not been commonly used to identify genetic predictors of drug dosing or concentrations, perhaps because of the heterogeneity in drug dosing and formulation, and the random timing of blood sampling. We hypothesized that large sample sizes relative to traditional pharmacokinetic studies would compensate for this variability and enable the identification of pharmacogenetic predictors of drug concentrations. We performed a cross‐sectional, proof‐of‐concept association study to replicate the well‐established association between metoprolol concentrations and CYP2D6 genotype‐inferred metabolizer phenotypes in participants from the Montreal Heart Institute Hospital Cohort undergoing metoprolol therapy. Plasma concentrations of metoprolol and α‐hydroxymetoprolol (α‐OH‐metoprolol) were measured in samples collected randomly regarding the previous metoprolol dose. A total of 999 individuals were included. The metoprolol daily dose ranged from 6.25 to 400 mg (mean 84.3 ± 57.1 mg). CYP2D6‐inferred phenotype was significantly associated with both metoprolol and α‐OH‐metoprolol in unadjusted and adjusted models (all p < 10−14). Models for metoprolol daily dose showed consistent results. Our study suggests that randomly drawn blood samples from biobanks can serve as a new approach to discover genetic associations related to drug concentrations and dosing, with potentially broader implications for genomewide association studies on the pharmacogenomics of drug metabolism.
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Affiliation(s)
- Maxime Meloche
- Faculty of Pharmacy, Université de Montréal, Montreal, Quebec, Canada.,Montreal Heart Institute, Montreal, Quebec, Canada.,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, Montreal, Quebec, Canada
| | - Grégoire Leclair
- Faculty of Pharmacy, Université de Montréal, Montreal, Quebec, Canada
| | - Martin Jutras
- Faculty of Pharmacy, Université de Montréal, Montreal, Quebec, Canada
| | - Essaïd Oussaïd
- Montreal Heart Institute, Montreal, Quebec, Canada.,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, Montreal, Quebec, Canada
| | - Marie-Josée Gaulin
- Montreal Heart Institute, Montreal, Quebec, Canada.,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, Montreal, Quebec, Canada
| | - Ian Mongrain
- Montreal Heart Institute, Montreal, Quebec, Canada.,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, Montreal, Quebec, Canada
| | - David Busseuil
- Montreal Heart Institute, Montreal, Quebec, Canada.,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, Montreal, Quebec, Canada
| | - Jean-Claude Tardif
- Montreal Heart Institute, Montreal, Quebec, Canada.,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, Montreal, Quebec, Canada.,Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Marie-Pierre Dubé
- Montreal Heart Institute, Montreal, Quebec, Canada.,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, Montreal, Quebec, Canada.,Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Simon de Denus
- Faculty of Pharmacy, Université de Montréal, Montreal, Quebec, Canada.,Montreal Heart Institute, Montreal, Quebec, Canada.,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, Montreal, Quebec, Canada
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5
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Alwhaibi A, Alsanea S, Alrabiah Z, Alanazi FK, Al-Hadiya BM, Abou-Auda HS. Pharmacokinetic profile of sildenafil citrate in healthy Middle Eastern Males: Comparison with other ethnicities. Saudi Pharm J 2021; 29:1498-1505. [PMID: 35002388 PMCID: PMC8720797 DOI: 10.1016/j.jsps.2021.11.011] [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: 08/06/2021] [Accepted: 11/27/2021] [Indexed: 11/28/2022] Open
Abstract
AIM 1) To investigate the pharmacokinetic profile of sildenafil citrate in Middle Eastern males and, 2) To highlight the impact of ethnicity on its pharmacokinetics parameters through comparing Middle Eastern data to the data estimated from different ethnic groups. METHOD The study was conducted on 24 Middle Eastern healthy male volunteers. Pharmacokinetic data including Cmax, Tmax, t1/2, AUC0-t, AUC0-∞ were estimated from blood samples collected at several time points within 24 h post-administration of a single 100-mg tablet of sildenafil citrate (Viagra®). Pharmacokinetic data of sildenafil generic 100-mg tablet (product B) was determined in the volunteers using the same analytical method. Pharmacokinetic data of other studies published on different ethnicities were obtained and compared to our Viagra®-related data. RESULTS Analysis of Middle Eastern data (mean ± SD) revealed Cmax = 398.9 ± 107.7 ng/ml; Tmax = 1.84 ± 0.22 h; t1/2 = 2.66 ± 0.97 h; AUC0-24 = 1475 ± 515.3 ng.h/ml; AUC0-∞ = 1556 ± 567.58 ng.h/ml. There was no significant difference between Viagra® and product B, confirming the bioequivalence of the two preparation as well as the reliability of utilized analytical method. Data comparisons between Middle Eastern and other ethnicities indicated that Iranian, Mexican, and Thai would potentially have twice the effect observed in Arabs and Caucasians, considering the same prescribed drug formulation and dose. CONCLUSION There is a considerable difference in the pharmacokinetic profile of sildenafil citrate between Middle Eastern and other ethnic groups. Ethnicity may predispose individuals to unwanted prolonged activity of sildenafil and adverse events. Thus, it should be taken in consideration by clinicians when recommending sildenafil dose.
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Affiliation(s)
- Abdulrahman Alwhaibi
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sary Alsanea
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ziyad Alrabiah
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Fars K. Alanazi
- Kayyali Chair for Pharmaceutical Industries, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Badraddin M. Al-Hadiya
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, Taif, Saudi Arabia
| | - Hisham S. Abou-Auda
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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6
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Leite S, Moreira-Costa L, Cerqueira R, Sousa-Mendes C, Angélico-Gonçalves A, Fontoura D, Vasques-Nóvoa F, Leite-Moreira AF, Lourenço AP. Chronic Sildenafil Therapy in the ZSF1 Obese Rat Model of Metabolic Syndrome and Heart Failure With Preserved Ejection Fraction. J Cardiovasc Pharmacol Ther 2021; 26:690-701. [PMID: 34328815 DOI: 10.1177/10742484211034253] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Although decreased protein kinase G (PKG) activity was proposed as potential therapeutic target in heart failure with preserved ejection fraction (HFpEF), randomized clinical trials (RCTs) with type-5 phosphodiesterase inhibitors (PDE5i) showed neutral results. Whether specific subgroups of HFpEF patients may benefit from PDE5i remains to be defined. Our aim was to test chronic sildenafil therapy in the young male ZSF1 obese rat model of HFpEF with severe hypertension and metabolic syndrome. Sixteen-week-old ZSF1 obese rats were randomly assigned to receive sildenafil 100 mg·Kg-1·d-1 dissolved in drinking water (ZSF1 Ob SIL, n = 8), or placebo (ZSF1 Ob PL, n = 8). A group of Wistar-Kyoto rats served as control (WKY, n = 8). Four weeks later animals underwent effort tests, glucose metabolism studies, hemodynamic evaluation, and samples were collected for aortic ring preparation, left ventricular (LV) myocardial adenosine triphosphate (ATP) quantification, immunoblotting and histology. ZSF1 Ob PL rats showed systemic hypertension, aortic stiffening, impaired LV relaxation and increased LV stiffness, with preserved ejection fraction and cardiac index. Their endurance capacity was decreased as assessed by maximum workload and peak oxygen consumption (V˙O2) and respiratory quotient were increased, denoting more reliance on anaerobic metabolism. Additionally, ATP levels were decreased. Chronic sildenafil treatment attenuated hypertension and decreased LV stiffness, modestly enhancing effort tolerance with a concomitant increase in peak, ATP levels and VASP phosphorylation. Chronic sildenafil therapy in this model of HFpEF of the young male with extensive and poorly controlled comorbidities has beneficial cardiovascular effects which support RCTs in HFpEF patient subgroups with similar features.
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Affiliation(s)
- Sara Leite
- Department of Surgery and Physiology, Faculty of Medicine, 26705University of Porto, Porto, Portugal.,Anta Family Health Unit, Espinho/Gaia Healthcare Centre, Espinho, Portugal
| | - Liliana Moreira-Costa
- Department of Surgery and Physiology, Faculty of Medicine, 26705University of Porto, Porto, Portugal
| | - Rui Cerqueira
- Department of Surgery and Physiology, Faculty of Medicine, 26705University of Porto, Porto, Portugal.,Department of Cardiothoracic Surgery, São João Hospital Centre, Porto, Portugal
| | - Cláudia Sousa-Mendes
- Department of Surgery and Physiology, Faculty of Medicine, 26705University of Porto, Porto, Portugal
| | | | - Dulce Fontoura
- Department of Surgery and Physiology, Faculty of Medicine, 26705University of Porto, Porto, Portugal
| | - Francisco Vasques-Nóvoa
- Department of Surgery and Physiology, Faculty of Medicine, 26705University of Porto, Porto, Portugal.,Department of Internal Medicine, São João Hospital Centre, Porto, Portugal
| | - Adelino F Leite-Moreira
- Department of Surgery and Physiology, Faculty of Medicine, 26705University of Porto, Porto, Portugal.,Department of Cardiothoracic Surgery, São João Hospital Centre, Porto, Portugal
| | - André P Lourenço
- Department of Surgery and Physiology, Faculty of Medicine, 26705University of Porto, Porto, Portugal.,Department of Anesthesiology, São João Hospital Centre, Porto, Portugal
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7
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Mulder TAM, van Eerden RAG, de With M, Elens L, Hesselink DA, Matic M, Bins S, Mathijssen RHJ, van Schaik RHN. CYP3A4∗22 Genotyping in Clinical Practice: Ready for Implementation? Front Genet 2021; 12:711943. [PMID: 34306041 PMCID: PMC8296839 DOI: 10.3389/fgene.2021.711943] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 06/17/2021] [Indexed: 12/26/2022] Open
Abstract
Cytochrome P450 3A4 (CYP3A4) is the most important drug metabolizing enzyme in the liver, responsible for the oxidative metabolism of ∼50% of clinically prescribed drugs. Therefore, genetic variation in CYP3A4 could potentially affect the pharmacokinetics, toxicity and clinical outcome of drug treatment. Thus far, pharmacogenetics for CYP3A4 has not received much attention. However, the recent discovery of the intron 6 single-nucleotide polymorphism (SNP) rs35599367C > T, encoding the CYP3A4∗22 allele, led to several studies into the pharmacogenetic effect of CYP3A4∗22 on different drugs. This allele has a relatively minor allele frequency of 3-5% and an effect on CYP3A4 enzymatic activity. Thus far, no review summarizing the data published on several drugs is available yet. This article therefore addresses the current knowledge on CYP3A4∗22. This information may help in deciding if, and for which drugs, CYP3A4∗22 genotype-based dosing could be helpful in improving drug therapy. CYP3A4∗22 was shown to significantly influence the pharmacokinetics of several drugs, with currently being most thoroughly investigated tacrolimus, cyclosporine, and statins. Additional studies, focusing on toxicity and clinical outcome, are warranted to demonstrate clinical utility of CYP3A4∗22 genotype-based dosing.
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Affiliation(s)
- Tessa A M Mulder
- Department of Clinical Chemistry, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Ruben A G van Eerden
- Department of Medical Oncology, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Mirjam de With
- Department of Clinical Chemistry, Erasmus MC University Medical Center, Rotterdam, Netherlands.,Department of Medical Oncology, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Laure Elens
- Department of Clinical Chemistry, Erasmus MC University Medical Center, Rotterdam, Netherlands.,Integrated PharmacoMetrics, PharmacoGenomics and PharmacoKinetics, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium.,Louvain Centre for Toxicology and Applied Pharmacology, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Dennis A Hesselink
- Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, Netherlands.,Erasmus MC Transplant Institute, Rotterdam, Netherlands
| | - Maja Matic
- Department of Clinical Chemistry, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Sander Bins
- Department of Medical Oncology, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Ron H N van Schaik
- Department of Clinical Chemistry, Erasmus MC University Medical Center, Rotterdam, Netherlands
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8
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Troiano G, Lazzeri G. The potential toxic combination of grapefruit juice and sildenafil. TOXIN REV 2021. [DOI: 10.1080/15569543.2019.1603163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Gianmarco Troiano
- University of Siena, Department of Molecular and Developmental Medicine, Siena, Italy
| | - Giacomo Lazzeri
- University of Siena, Department of Molecular and Developmental Medicine, Siena, Italy
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9
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Krogstad V, Peric A, Robertsen I, Kringen MK, Vistnes M, Hjelmesæth J, Sandbu R, Johnson LK, Angeles PC, Jansson-Löfmark R, Karlsson C, Andersson S, Åsberg A, Andersson TB, Christensen H. Correlation of Body Weight and Composition With Hepatic Activities of Cytochrome P450 Enzymes. J Pharm Sci 2020; 110:432-437. [PMID: 33091408 DOI: 10.1016/j.xphs.2020.10.027] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 01/09/2023]
Abstract
Obesity is associated with comorbidities of which pharmacological treatment is needed. Physiological changes associated with obesity may influence the pharmacokinetics of drugs, but the effect of body weight on drug metabolism capacity remains uncertain. The aim of this study was to investigate ex vivo activities of hepatic drug metabolizing CYP enzymes in patients covering a wide range of body weight. Liver biopsies from 36 individuals with a body mass index (BMI) ranging from 18 to 63 kg/m2 were obtained. Individual hepatic microsomes were prepared and activities of CYP3A, CYP2B6, CYP2C8, CYP2D6, CYP2C9, CYP2C19 and CYP1A2 were determined. The unbound intrinsic clearance (CLint,u) values for CYP3A correlated negatively with body weight (r = -0.43, p < 0.01), waist circumference (r = -0.47, p < 0.01), hip circumference (r = -0.51, p < 0.01), fat percent (r = -0.41, p < 0.05), fat mass (r = -0.48, p < 0.01) and BMI (r = -0.46, p < 0.01). Linear regression analysis showed that CLint,u values for CYP3A decreased with 5% with each 10% increase in body weight (r2 = 0.12, β = -0.558, p < 0.05). There were no correlations between body weight measures and CLint,u values for the other CYP enzymes investigated. These results indicate reduced hepatic metabolizing capacity of CYP3A substrates in patients with increasing body weight.
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Affiliation(s)
- Veronica Krogstad
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway; Department of Transplantation Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Alexandra Peric
- Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Ida Robertsen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Marianne K Kringen
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway; Department of Health Sciences, OsloMet - Oslo Metropolitan University, Oslo, Norway
| | - Maria Vistnes
- Department of Internal Medicine, Diakonhjemmet Hospital, Oslo, Norway; Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Norway; Department of Cardiology, Oslo University Hospital Ullevaal, Oslo, Norway
| | - Jøran Hjelmesæth
- The Morbid Obesity Centre, Vestfold Hospital Trust, Tønsberg, Norway; Department of Endocrinology, Morbid Obesity and Preventive Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Rune Sandbu
- The Morbid Obesity Centre, Vestfold Hospital Trust, Tønsberg, Norway
| | | | - Philip Carlo Angeles
- The Morbid Obesity Centre, Vestfold Hospital Trust, Tønsberg, Norway; Department of Surgery, Vestfold Hospital Trust, Tønsberg, Norway
| | - Rasmus Jansson-Löfmark
- Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Cecilia Karlsson
- Late-stage Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden; Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Shalini Andersson
- Research and Early Development, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Anders Åsberg
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway; Department of Transplantation Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Tommy B Andersson
- Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden; Department of Physiology and Pharmacology, Section of Pharmacogenetics, Karolinska Institutet, Stockholm, Sweden
| | - Hege Christensen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway.
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10
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Sabbah MS, Fayyaz AU, de Denus S, Felker GM, Borlaug BA, Dasari S, Carter RE, Redfield MM. Obese-Inflammatory Phenotypes in Heart Failure With Preserved Ejection Fraction. Circ Heart Fail 2020; 13:e006414. [PMID: 32809874 DOI: 10.1161/circheartfailure.119.006414] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Comorbidity-driven microvascular inflammation is posited as a unifying pathophysiologic mechanism for heart failure with preserved ejection fraction (HFpEF). Obesity is proinflammatory and common in HFpEF. We hypothesized that unique obesity-inflammation HFpEF phenotypes exist and are associated with differences in clinical features, fibrosis biomarkers, and functional performance. METHODS Patients (n=301) from 3 HFpEF clinical trials were studied. Unsupervised machine learning (hierarchical clustering) with obese status and 13 inflammatory biomarkers as input variables was performed. Associations of clusters with HFpEF severity and fibrosis biomarkers (PIIINP [procollagen III N-terminal peptide], CITP [C-telopeptide for type I collagen], IGFBP7 [insulin-like growth factor-binding protein-7], and GAL-3 [galectin-3]) were assessed. RESULTS Hierarchical clustering revealed 3 phenotypes: pan-inflammatory (n=129; 64% obese), noninflammatory (n=83; 55% obese), and obese high CRP (C-reactive protein; n=89; 98% obese). The pan-inflammatory phenotype had more comorbidities and heart failure hospitalizations; higher left atrial volume, NT-proBNP (N-terminal pro-B-type natriuretic peptide), and fibrosis biomarkers; and lower glomerular filtration rate, peak oxygen consumption, 6-minute walk distance, and active hours/day (P<0.05 for all). The noninflammatory phenotype had the most favorable values for all measures. The obese high CRP phenotype resembled the noninflammatory phenotype except for isolated elevation of CRP and lower functional performance. Hierarchical cluster assignment was independent of CRP genotype combinations that alter CRP levels and more biologically plausible than other clustering approaches. Multiple traditional analytic techniques confirmed and extended the hierarchical clustering findings. CONCLUSIONS Unique obesity-inflammation phenotypes exist in HFpEF and are associated with differences in comorbidity burden, HFpEF severity, and fibrosis. These data support comorbidity-driven microvascular inflammation as a pathophysiologic mechanism for many but not all HFpEF patients.
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Affiliation(s)
- Michael S Sabbah
- Department of Cardiovascular Disease (M.S.S., A.U.F., B.A.B., M.M.R.), Mayo Clinic, Rochester, MN.,Center for Regenerative Medicine (M.S.S.), Mayo Clinic, Rochester, MN
| | - Ahmed U Fayyaz
- Department of Cardiovascular Disease (M.S.S., A.U.F., B.A.B., M.M.R.), Mayo Clinic, Rochester, MN
| | - Simon de Denus
- Research Centre, Montreal Heart Institute, QC, Canada (S.d.D.).,Université de Montréal Beaulieu-Saucier Pharmacogenomics Center, QC, Canada (S.d.D.).,Department of Pharmacy, Université de Montréal, QC, Canada (S.d.D.)
| | - G Michael Felker
- Duke Clinical Research Institute, Duke University, Durham, NC (G.M.F.)
| | - Barry A Borlaug
- Department of Cardiovascular Disease (M.S.S., A.U.F., B.A.B., M.M.R.), Mayo Clinic, Rochester, MN
| | - Surendra Dasari
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL (S.D., R.E.C.)
| | - Rickey E Carter
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL (S.D., R.E.C.)
| | - Margaret M Redfield
- Department of Cardiovascular Disease (M.S.S., A.U.F., B.A.B., M.M.R.), Mayo Clinic, Rochester, MN
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Pharmacokinetics of Sildenafil in Patients with a Left Ventricular Assist Device: A Word of Caution. ASAIO J 2020; 65:530-532. [PMID: 30299299 DOI: 10.1097/mat.0000000000000886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We compared maximal plasma concentrations (Cmax) of sildenafil and metabolite n-desmethyl sildenafil in 12 inpatients with left ventricular assist devices (LVADs) on sildenafil (60 mg/day) to the reference range. Sildenafil Cmax (156.8 ± 124.5 ng/ml) was elevated in 66% of patients, with a two to fivefold increase over the upper limit of the reference range in 25% of patients. Metabolite Cmax (133.3 ± 102.0 ng/ml) was elevated in 75% of patients, with a three to sevenfold increase over the upper limit of the reference range in 40% of patients. Patients with heart failure and LVADs are at increased risk of concentrated-related sildenafil adverse events.
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