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Trigonella foenum-graecum (Fenugreek) has been long used as a traditional medicine and has many therapeutic effects, including anti-diabetic, anti-hyperlipidemia, anti-inflammatory and anti-oxidant properties. The current study aimed to investigate cardioprotective effects of fenugreek seed on diabetic rats. Methods: Diabetes was induced in forty-two male rats by injection of streptozotocin (STZ) (60 mg\/ kg). Diabetic animals were treated with three different doses of fenugreek seed extract (50, 100 and 200 mg\/kg) or metformin (300 mg\/kg) for six weeks by gavage. Nondiabetic rats served as controls. Glucose, cholesterol, and triglycerides levels were measured in the blood samples, and oxidative stress markers as well as gene expression of ICAM1, Bax and Bcl2 were assessed in the cardiac tissues of the experimental groups. Results: Diabetic rats exhibited increased serum glucose, cholesterol and triglycerides levels, elevated markers of oxidative stress thiobarbituric acid\u2013reacting substances (TBARS) levels , total thiol groups (SH), catalase (CAT) and superoxide dismutase (SOD) activity, and enhanced apoptosis cell death (ratio of Bax\/Bcl2). Fenugreek seed extract considerably improved metabolism abnormalities, attenuated oxidative stress and diminished apoptosis index. Conclusion: Our study suggests that fenugreek seed may protect the cardiac structure in STZ-induced diabetic rats by attenuating oxidative stress and apoptosis.<\/jats:p>","DOI":"10.34172\/jcvtr.2021.01","type":"journal-article","created":{"date-parts":[[2021,5,12]],"date-time":"2021-05-12T14:14:23Z","timestamp":1620828863000},"page":"28-36","update-policy":"https:\/\/doi.org\/10.34172\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Cardioprotective effects of Fenugreek (<i>Trigonella foenum-graceum<\/i>) seed extract in streptozotocin induced diabetic rats"],"prefix":"10.34172","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6644-5219","authenticated-orcid":true,"given":"Soleyman","family":"Bafadam","sequence":"first","affiliation":[{"name":"Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, 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