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Turpin VRG, Lovoy GM, Parr SK, Hammond ST, Post HK, Caldwell JT, Banister HR, Scheuermann BC, Colburn TD, Ade CJ. Inorganic nitrate supplementation may improve diastolic function and the O 2 cost of exercise in cancer survivors: a pilot study. Support Care Cancer 2022; 31:63. [PMID: 36534177 DOI: 10.1007/s00520-022-07520-6] [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: 10/22/2021] [Accepted: 12/04/2022] [Indexed: 12/23/2022]
Abstract
In non-cancer populations, inorganic dietary nitrate (NO3-) supplementation is associated with enhanced cardiorespiratory function but remains untested in patients with a history of cancer. Therefore, this pilot study sought to determine if oral NO3- supplementation, as a supportive care strategy, increases left ventricular (LV) function and exercise performance in survivors of cancer treated with anticancer therapy while simultaneously evaluating the feasibility of the methods and procedures required for future large-scale randomized trials. Two cohorts of patients with a history of cancer treated with anticancer chemotherapy were recruited. Patients in cohort 1 (n = 7) completed a randomized, double-blind, crossover study with 7 days of NO3- or placebo (PL) supplementation, with echocardiography. Similarly, patients in cohort 2 (n = 6) received a single, acute dose of NO3- supplementation or PL. Pulmonary oxygen uptake (VO2), arterial blood pressure, and stroke volume were assessed during exercise. In cohort 1, NO3- improved LV strain rate in early filling (mean difference (MD) [95% CI]: - 0.3 1/s [- 0.6 to 0.06]; P = 0.04) and early mitral septal wall annular velocity (MD [95% CI]: 0.1 m/s [- 0.01 to - 0.001]; P = 0.02) compared to placebo. In cohort 2, NO3- decreased the O2 cost of low-intensity steady-state exercise (MD [95% CI]: - 0.5 ml/kg/min [- 0.9 to - 0.09]; P = 0.01). Resting and steady-state arterial blood pressure and stroke volume were not different between conditions. No differences between conditions for peak VO2 (MD [95% CI]: - 0.7 ml/kg/min [- 3.0 to 1.6]; P = 0.23) were observed. The findings from this pilot study warrant further investigation in larger clinical trials targeting the use of long-term inorganic dietary NO3- supplementation as a possible integrative supportive care strategy in patients following anticancer therapy.
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Affiliation(s)
- Vanessa-Rose G Turpin
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Garrett M Lovoy
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Shannon K Parr
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Stephen T Hammond
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Hunter K Post
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Jacob T Caldwell
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Heather R Banister
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Britton C Scheuermann
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Trenton D Colburn
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA
| | - Carl J Ade
- Department of Kinesiology, College of Health and Human Sciences, Kansas State University, Manhattan, USA. .,Physician Assistant Studies, College of Health and Human Sciences, Kansas State University, Manhattan, USA. .,Johnson Cancer Research Center, Kansas State University, Manhattan, USA. .,Clinical Integrative Physiology Laboratory, Kansas State University, Manhattan, KS, 66506, USA.
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Anastasiou M, Oikonomou E, Zagouri F, Siasos G, Antonopoulos AS, Psaltopoulou T, Bamias A, Dimopoulos MA, Tousoulis D. Flow-Mediated Dilation of Brachial Artery as a Screening Tool for Anthracycline-Induced Cardiotoxicity. J Am Coll Cardiol 2017; 70:3072. [DOI: 10.1016/j.jacc.2017.09.1140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/06/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022]
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Xi L. Visnagin-a new protectant against doxorubicin cardiotoxicity? Inhibition of mitochondrial malate dehydrogenase 2 (MDH2) and beyond. ANNALS OF TRANSLATIONAL MEDICINE 2016; 4:65. [PMID: 27004212 DOI: 10.3978/j.issn.2305-5839.2015.10.43] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Lei Xi
- Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University, Richmond, VA 23298-0204, USA
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Yin F, Boveris A, Cadenas E. Mitochondrial energy metabolism and redox signaling in brain aging and neurodegeneration. Antioxid Redox Signal 2014; 20:353-71. [PMID: 22793257 PMCID: PMC3887431 DOI: 10.1089/ars.2012.4774] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE The mitochondrial energy-transducing capacity is essential for the maintenance of neuronal function, and the impairment of energy metabolism and redox homeostasis is a hallmark of brain aging, which is particularly accentuated in the early stages of neurodegenerative diseases. RECENT ADVANCES The communications between mitochondria and the rest of the cell by energy- and redox-sensitive signaling establish a master regulatory device that controls cellular energy levels and the redox environment. Impairment of this regulatory devise is critical for aging and the early stages of neurodegenerative diseases. CRITICAL ISSUES This review focuses on a coordinated metabolic network-cytosolic signaling, transcriptional regulation, and mitochondrial function-that controls the cellular energy levels and redox status as well as factors which impair this metabolic network during brain aging and neurodegeneration. FUTURE DIRECTIONS Characterization of mitochondrial function and mitochondria-cytosol communications will provide pivotal opportunities for identifying targets and developing new strategies aimed at restoring the mitochondrial energy-redox axis that is compromised in brain aging and neurodegeneration.
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Affiliation(s)
- Fei Yin
- 1 Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California , Los Angeles, California
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Dietary inorganic nitrate alleviates doxorubicin cardiotoxicity: mechanisms and implications. Nitric Oxide 2012; 26:274-84. [PMID: 22484629 DOI: 10.1016/j.niox.2012.03.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 02/11/2012] [Accepted: 03/22/2012] [Indexed: 11/21/2022]
Abstract
Doxorubicin (DOX) is one of the most powerful and widely prescribed chemotherapeutic agents to treat divergent human cancers. However, the clinical use of DOX is restricted due to its severe cardiotoxic side-effects. There has been ongoing search for cardioprotectants against DOX toxicity. Inorganic nitrate has emerged as a bioactive compound that can be reduced into nitrite and nitric oxide in vivo and in turn plays a therapeutic role in diseases associated with nitric oxide insufficiency or dysregulation. In this review, we describe a novel concept of using dietary supplementation of inorganic nitrate to reduce DOX-induced cardiac cellular damage and dysfunction, based on our recent promising studies in a mouse model of DOX cardiotoxicity. Our data show that chronic oral ingestion of sodium nitrate, at a dose equivalent to ~400% of the Acceptable Daily Intake of the World Health Organization, alleviated DOX-induced left ventricular dysfunction and mitochondrial respiratory chain damage. Such cardioprotective effects were associated with reduction of cardiomyocyte necrosis/apoptosis, tissue lipid peroxidation, and mitochondrial H(2)O(2) generation following DOX treatment. Furthermore, proteomic studies revealed enhanced cardiac expression of mitochondrial antioxidant enzyme - peroxiredoxin 5 in the nitrate-treated animals. These studies suggest that inorganic nitrate could be an inexpensive therapeutic agent for long-term oral administration in preventing DOX-induced cardiac toxicity and myopathy during the prolonged pathological process. Future clinical trials in the cancer patients undergoing DOX chemotherapy are warranted to translate these experimental findings into an effective new therapy in preventing the DOX-induced cardiomyopathy.
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Demaria AN, Bax JJ, Ben-Yehuda O, Feld GK, Greenberg BH, Hall J, Hlatky M, Lew WYW, Lima JAC, Maisel AS, Narayan SM, Nissen S, Sahn DJ, Tsimikas S. Highlights of the Year in JACC 2011. J Am Coll Cardiol 2012; 59:503-37. [PMID: 22281255 DOI: 10.1016/j.jacc.2011.12.013] [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: 11/29/2022]
Affiliation(s)
- Anthony N Demaria
- University of California-San Diego, San Diego, California 92122, USA.
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