Cited by 95Nitric Oxide and Endothelin EffectsNatural Antidiabetic Agents StudiesDiabetes Treatment and Management

Dietary nitrate improves glucose tolerance and lipid profile in an animal model of hyperglycemia

Khalifi, Saeedeh, Rahimipour, Ali, Jeddi, Sajad, Ghanbari, Mahboubeh, Kazerouni, Faranak, Ghasemi, Asghar·2015·Nitric Oxide

Abstract

Reduction in nitric oxide (NO) production and bioavailability contribute to the pathogenesis of type 2 diabetes. Administration of nitrate has strong NO-like outcomes in both animals and humans. In this study, we examined the effects of dietary nitrate on glucose tolerance and lipid profile in type 2 diabetic rats. Type 2 diabetes was induced by injection of streptozotocin and nicotinamide. Thirty-two male Wistar rats were divided into 4 groups: controls (C), control+nitrate (CN), diabetes (D), and diabetes+nitrate (DN). For 8 weeks, the CN and DN groups consumed sodium nitrate (100 mg/L in drinking water) while the C and D groups consumed tap water. Serum nitrate+nitrite (NOx), glucose, lipid profile, total antioxidant capacity (TAC), and catalase (CAT) activity were measured before and at the end of the study. Systolic blood pressure (SBP) was measured every 10 days. Intravenous glucose tolerance test (IVGTT) was performed at the end of the study. Serum NOx decreased in diabetic rats and dietary nitrate restored it to normal values. Increases in serum glucose levels was significantly lower in the DN group compared to the D group (24.1% vs. 90.2%; p < 0.05). Nitrate therapy in diabetic rats significantly improved lipid profile, glucose tolerance (AUC: 20264 ± 659 vs. 17923 ± 523; p < 0.05 for D and DN groups respectively) and restored elevated SBP to normal values. Diabetic rats had lower TAC and CAT activity and dietary nitrate restored these to normal status. In conclusion, dietary nitrate prevented increase in SBP and serum glucose, improved glucose tolerance and restored dyslipidemia in an animal model of hyperglycemia.

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Crossref · 10.1016/j.niox.2014.11.011

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  • Recent studies demonstrate improvements of insulin resistance in humans and animals as a result of dietary nitrate/nitrite enhancing NO availability in plasma and tissues.

    “the therapeutic potential of dietary nitrate/nitrite has been supported by recent studies demonstrating the improvements of insulin resistance in humans and animals as a result of its enhancing the NO availability in plasma and tissues [65,66,67,68].”

    From NO-Rich Diet for Lifestyle-Related Diseases (2015) · cites this paper as [68]

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Authors
Khalifi, S., Rahimipour, A., Jeddi, S., Ghanbari, M., Kazerouni, F., & Ghasemi, A.
Affiliations
  • Shahid Beheshti University (IR)
  • Research Institute for Endocrine Sciences (IR)
Corresponding author
Ghasemi, Asghar
Venue
Nitric Oxide
Publisher
Elsevier BV
Published
2015-01
Volume
44
Pages
24-30
ISSN
1089-8603 (ISSN-L)
OpenAlex
W2013901475
Cited by
95
References
55
Citations by year
2026: 6 · 2025: 8 · 2024: 13 · 2023: 4 · 2022: 9 · 2021: 9 · 2020: 12 · 2019: 9 · 2018: 10 · 2017: 6 · 2016: 3 · 2015: 6
FWCI
3.33
Type
journal article
Language
en
Open access
closed
Locations
  • Nitric Oxide (publishedVersion)
  • PubMed (publishedVersion)
Funders
Endocrine Physiology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences (498)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Natural Antidiabetic Agents Studies
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
dietary nitrate, sodium nitrate, type 2 diabetes, glucose tolerance, lipid profile, dyslipidemia, hyperglycemia, nitric oxide bioavailability, streptozotocin-nicotinamide-induced diabetes, systolic blood pressure, antioxidant capacity, catalase, nitrite/nitrate
MeSH terms
Animals, Blood Glucose, Body Weight, Diabetes Mellitus, Experimental, Disease Models, Animal, Hyperglycemia, Lipids, Male, Nitrates, Systole, Rats, Wistar, Rats

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