ArticleAging cell2012
Superoxide-lowering therapy with TEMPOL reverses arterial dysfunction with aging in mice.
Article in Aging cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.
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Who cites it
85 citing papers in PubMed, 131 citations in OpenAlex.
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- Getting to the Heart of the Matter: Exploring the Intersection of Cardiovascular Disease, Sex and Race and How Exercise, and Gut Microbiota Influence these Relationships.Reviews in cardiovascular medicine · 2025Review
- Mechanisms of cellular senescence-induced vascular aging: evidence of senotherapeutic strategies.The journal of cardiovascular aging · 2025Article
- Lower estimates of myocardial perfusion are associated with greater aortic perivascular adipose tissue density in humans independent of aortic stiffness.American journal of physiology. Heart and circulatory physiology · 2024Article
- Functional deterioration of vascular mitochondrial and glycolytic capacity in the aortic rings of aged mice.GeroScience · 2024Article
- Activation of the IKK2/NF-κB pathway in VSMCs inhibits calcified vascular stiffness in CKD.JCI insight · 2024Article
- Intermittent supplementation with fisetin improves arterial function in old mice by decreasing cellular senescence.Aging cell · 2024Article
- Effects of regular exercise on vascular function with aging: Does sex matter?American journal of physiology. Heart and circulatory physiology · 2024Review
- Synthetic ditempolphosphatidylcholine liposome-like nanoparticles for anti-oxidative therapy of atherosclerosis.RSC advances · 2023Article
- Peptidomics Study of Plant-Based Meat Analogs as a Source of Bioactive Peptides.Foods (Basel, Switzerland) · 2023Article
- Aging, aerobic exercise, and cardiovascular health: Barriers, alternative strategies and future directions.Experimental gerontology · 2023Review
- Pyridoxamine treatment ameliorates large artery stiffening and cerebral artery endothelial dysfunction in old mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023Article
- Purification of Extracellular Protease fromNutrients · 2022Article
- The Generation of Nitric Oxide from Aldehyde Dehydrogenase-2: The Role of Dietary Nitrates and Their Implication in Cardiovascular Disease Management.International journal of molecular sciences · 2022Review
25 more citing papers are in PubMed but not listed here.
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
To test the hypothesis that the antioxidant enzyme superoxide dismutase (SOD) mimetic TEMPOL improves arterial aging, young (Y, 4-6 months) and old (O, 26-28 months) male C57BL6 mice received regular or TEMPOL-supplemented (1mM) drinking water for 3 weeks (n = 8 per group). Aortic superoxide was 65% greater in O (P < 0.05 vs. Y), which was normalized by TEMPOL. O had large elastic artery stiffening, as indicated by greater aortic pulse wave velocity (aPWV, 508 ± 22 vs. 418 ± 22 AU), which was associated with increased adventitial collagen I expression (P < 0.05 vs. Y). TEMPOL reversed the age-associated increases in aPWV (434 ± 21 AU) and collagen in vivo, and SOD reversed the increases in collagen I in adventitial fibroblasts from older rats in vitro. Isolated carotid arteries of O had impaired endothelial function as indicated by reduced acetylcholine-stimulated endothelium-dependent dilation (EDD) (75.6 ± 3.2 vs. 94.5 ± 2.0%) mediated by reduced nitric oxide (NO) bioavailability (L-NAME) associated with decreased endothelial NO synthase (eNOS) expression (P < 0.05 vs. Y). TEMPOL restored EDD (94.5 ± 1.4%), NO bioavailability and eNOS in O. Nitrotyrosine and expression of NADPH oxidase were ~100-200% greater, and MnSOD was ~75% lower in O (P < 0.05 vs. Y). TEMPOL normalized nitrotyrosine and NADPH oxidase in O, without affecting MnSOD. Aortic pro-inflammatory cytokines were greater in O (P < 0.05 vs. Y) and normalized by TEMPOL. Short-term treatment of excessive superoxide with TEMPOL ameliorates large elastic artery stiffening and endothelial dysfunction with aging, and this is associated with normalization of arterial collagen I, eNOS, oxidative stress, and inflammation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.