Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
Year : 2020  |  Volume : 8  |  Issue : 2  |  Page : 100-107

Effect of L-citrulline supplementation on blood glucose level and lipid profile in high-fat diet - and dexamethasone-induced type-2 diabetes in male wistar rats

1 Department of Human Physiology, College of Medicine, Kaduna State University, Kaduna, Nigeria
2 Department of Human Physiology, College of Medical Sciences, Ahmadu Bello University, Zaria, Nigeria

Correspondence Address:
Dr. Timothy Danboyi
Department of Human Physiology, College of Medicine, Kaduna State University, Kaduna
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/njecp.njecp_23_20

Rights and Permissions

Background: Diabetes mellitus (DM) is one of the most common metabolic disorders, afflicting over 415 million people worldwide. It has been associated with several complications mainly due to hyperglycemia and dyslipidemia. L-Citrulline, a nonessential amino acid may be an efficient alternative therapy owing to its hypolipidemic and other beneficial effects which have not been extensively explored in type-2 DM (T2DM). Objective: We investigated the effect of L-citrulline supplementation on fasting blood glucose (FBG) level and lipid profile in high-fat-diet (HFD) and dexamethasone-induced T2DM in male Wistar rats. Materials and Methods: Thirty male Wistar rats, 10–12 weeks old, each weighing between 200 and 250 g were randomly assigned into six groups of five rats each. Group I was fed normal diet while diabetes was induced in the other groups with HFD and dexamethasone intraperitoneally (1 mg/kg) for 21 days. Group III which was confirmed diabetic, received metformin 100 mg/kg orally, and Groups IV, V, and VI which were also confirmed diabetic, received 200 mg/kg, 400 mg/kg, and 800 mg/kg L-citrulline, respectively, for 21 days. Serum FBG and lipid profile were obtained after humanely sacrificing the rats at the end of the treatment. Values at P < 0.05 were considered statistically significant. Results: At the end of the treatment, L-citrulline significantly reduced the FBG levels in a dose-dependent manner to 192.5 ± 3.4 mg/dL, 181.8 ± 1.2 mg/dL, and 174.8 ± 2.8 mg/dL at 200 mg/kg, 400 mg/kg, and 800 mg/kg, respectively. The total cholesterol level was significantly lowered by L-citrulline 200 mg/kg (55.2 ± 0.64 mg/dL), 400 mg/kg (57.8 ± 1.19 mg/dL), and 800 mg/kg (63.1 ± 1.50 mg/dL) compared to the diabetic control (149.8 ± 2.68 mg/dL). Similar findings were obtained for the low-density lipoprotein and triglyceride levels. There were also significant elevations in the high-density lipoprotein levels by L-citrulline at all doses compared to diabetic control (24.6 ± 1.1 mg/dL). Conclusion: L-Citrulline supplementation possesses antihyperglycemic and antidyslipidemic effects in diabetic Wistar rats.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded28    
    Comments [Add]    

Recommend this journal