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Antidiabetic Effect of Aqueous Corrigiola telephiifolia in Streptozotocin- Induced Diabetic Rats

[ Vol. 10 , Issue. 1 ]


Morad Hebi and Mohamed Eddouks*   Pages 61 - 68 ( 8 )


Background: Corrigiola telephiifolia Pourr, is a perennial species, woody distributed throughout the north of Africa. This plant is used in traditional Mediterranean preparations and has many traditional uses especially treatment of diabetes.

Aim/Methods: The current research was carried out to evaluate the antidiabetic effect of Aerial Parts of Aqueous Extract (APAE) of Corrigiola telephiifolia (C. telephiifolia) on both normal and streptozotocin (STZ)-induced diabetic rats treated at a dose of 5 mg/kg for fifteen days. Additionally, the histopathological changes in the liver, morphometric analysis, Oral Glucose Tolerance Test (OGTT) in normal rats and preliminary phytochemical screening for various components were realized.

Results: Single oral administration of the APAE of C. telephiifolia (5mg/kg) showed no significant change in glycaemia of normal and STZ-induced diabetic rats. In contrast, repeated oral administration of C. telephiifolia reduced blood glucose levels from 4.11 ± 0.10 mmol/L to 3.16 ± 0.16 mmol/L (p<0.01) 15 days after administration in normal rats. Furthermore, blood glucose levels decreased from 17.84 ± 1.75mmol/L to 1.93 ± 0.33 mmol/L (p<0.0001) in STZ diabetic rats after fifteen days of treatment. According to the oral glucose tolerance test, C. telephiifolia (5 mg/kg) was shown to prevent significantly the increase in blood glucose levels in normal treated rats 30 min after glucose administration when compared to the control group. Also, the liver architecture of diabetic rats treated by C. telephiifolia was improved when compared with the liver architecture of untreated diabetic rats. Concerning the preliminary phytochemical screening of C. telephiifolia, several compounds have been found such as polyphenols, flavonoids, saponins, mucilage and terpenoids.

Conclusion: The results show that the aqueous extract of C. telephiifolia possesses significant antihyperglycemic activity.


Corrigiola telephiifolia, streptozotocin, diabetes, oral glucose tolerance test, phytochemical screening, hyperglycemia.


Faculty of Sciences and Techniques Errachidia, Moulay Ismail University, BP 509, Boutalamine, 52000, Errachidia, Faculty of Sciences and Techniques Errachidia, Moulay Ismail University, BP 509, Boutalamine, 52000, Errachidia

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