ANTIDIABETIC PROPERTY AND ANTIOXIDANT POTENTIALS OF ETHANOL EXTRACT OF AZADIRACHTA INDICA LEAF IN STREPTOZOTOCIN-INDUCED DIABETIC RATS

The purpose of this study was to investigate the antidiabetic property and antioxidant potentials of ethanol extract of Azadirachta indica leaves in streptozotocin-induced diabetic rats. The phytochemical analysis was done using standard phytochemical methods. Diabetes was induced in the rats by a...

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Main Authors: O. C Ezeigwe, F. C. EZEONU, I. O. IGWILO
Format: Article
Language:English
Published: Faculty of Biosciences 2020-04-01
Series:The Bioscientist
Subjects:
Online Access:https://bioscientistjournal.com/index.php/The_Bioscientist/article/view/6
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author O. C Ezeigwe
F. C. EZEONU
I. O. IGWILO
author_facet O. C Ezeigwe
F. C. EZEONU
I. O. IGWILO
author_sort O. C Ezeigwe
collection DOAJ
description The purpose of this study was to investigate the antidiabetic property and antioxidant potentials of ethanol extract of Azadirachta indica leaves in streptozotocin-induced diabetic rats. The phytochemical analysis was done using standard phytochemical methods. Diabetes was induced in the rats by a single intraperitoneal dose of 50mg/kg body weight of streptozotocin. Blood glucose levels of diabetic rats were measured at two days interval during the 28 days of treatment. Superoxide Dismutase (SOD) activity, Catalase (CAT) activity and Glutathione Peroxidase (GPx) activity were determined using standard diagnostic methods. Lipid peroxidation was determined by the thiobarbituric acid-reacting substances (TBARS) assay method. Qualitative Phytochemical screening revealed that the ethanol extract of A. indica leaf contains saponin in substantial quantity. Alkaloids and Tannins were moderately present while cardiac glycosides, cyanogenic glycosides, flavonoids and phenols were detected in a very minute quantity. The ethanol extract of A. indica leaf significantly (p<0.05) lowered the fasting blood glucose level of streptozotocin-induced diabetic rats. There was a significant (p<0.05) increase in the SOD activity (1.023±0.051) of the group of rats treated with the ethanol extract of neem leaf at a dose of 400mg/kg b.w compared with the diabetic untreated group (0.969±0.005).  There was a significant (p<0.05) increase in the CAT activity (0.3050±0.4101) of the group of rats treated with the ethanol extract of neem leaf at a dose of 200mg/kg b.w compared with the diabetic untreated group (0.040±0.014). Also, there was a significant (p<0.05) increase in the GPx activity (2.623±0.516) of the group of rats treated with the ethanol extract of A. indica leaf at a dose of 400mg/kg b.w compared with the diabetic untreated group (0.790±0.226). The malondialdehyde (MDA) level (0.363±0.174, 0.313±0.0896 and 0.2875±0.0922) significantly (p<0.05) decreased in the groups administered graded doses (100, 200 and 400mg/kg b.w) of ethanol extract of A. indica leaf respectively compared with the diabetic untreated group (0.590±0.349). The ethanol extract contains important phytochemicals which may be responsible for its antidiabetic property and antioxidant potentials in streptozotocin-induced diabetic rats. It lowers blood glucose level in STZ-induced diabetic rats favourably towards recovery and improved health
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spelling doaj.art-b625069200374df0bcef3e998bb4167f2022-12-22T00:18:57ZengFaculty of BiosciencesThe Bioscientist2630-71032630-71112020-04-0181ANTIDIABETIC PROPERTY AND ANTIOXIDANT POTENTIALS OF ETHANOL EXTRACT OF AZADIRACHTA INDICA LEAF IN STREPTOZOTOCIN-INDUCED DIABETIC RATSO. C EzeigweF. C. EZEONUI. O. IGWILO The purpose of this study was to investigate the antidiabetic property and antioxidant potentials of ethanol extract of Azadirachta indica leaves in streptozotocin-induced diabetic rats. The phytochemical analysis was done using standard phytochemical methods. Diabetes was induced in the rats by a single intraperitoneal dose of 50mg/kg body weight of streptozotocin. Blood glucose levels of diabetic rats were measured at two days interval during the 28 days of treatment. Superoxide Dismutase (SOD) activity, Catalase (CAT) activity and Glutathione Peroxidase (GPx) activity were determined using standard diagnostic methods. Lipid peroxidation was determined by the thiobarbituric acid-reacting substances (TBARS) assay method. Qualitative Phytochemical screening revealed that the ethanol extract of A. indica leaf contains saponin in substantial quantity. Alkaloids and Tannins were moderately present while cardiac glycosides, cyanogenic glycosides, flavonoids and phenols were detected in a very minute quantity. The ethanol extract of A. indica leaf significantly (p<0.05) lowered the fasting blood glucose level of streptozotocin-induced diabetic rats. There was a significant (p<0.05) increase in the SOD activity (1.023±0.051) of the group of rats treated with the ethanol extract of neem leaf at a dose of 400mg/kg b.w compared with the diabetic untreated group (0.969±0.005).  There was a significant (p<0.05) increase in the CAT activity (0.3050±0.4101) of the group of rats treated with the ethanol extract of neem leaf at a dose of 200mg/kg b.w compared with the diabetic untreated group (0.040±0.014). Also, there was a significant (p<0.05) increase in the GPx activity (2.623±0.516) of the group of rats treated with the ethanol extract of A. indica leaf at a dose of 400mg/kg b.w compared with the diabetic untreated group (0.790±0.226). The malondialdehyde (MDA) level (0.363±0.174, 0.313±0.0896 and 0.2875±0.0922) significantly (p<0.05) decreased in the groups administered graded doses (100, 200 and 400mg/kg b.w) of ethanol extract of A. indica leaf respectively compared with the diabetic untreated group (0.590±0.349). The ethanol extract contains important phytochemicals which may be responsible for its antidiabetic property and antioxidant potentials in streptozotocin-induced diabetic rats. It lowers blood glucose level in STZ-induced diabetic rats favourably towards recovery and improved health https://bioscientistjournal.com/index.php/The_Bioscientist/article/view/6Neem leafHypoglycaemiaStreptozotocinAntioxidant enzymesMalondialdehyde
spellingShingle O. C Ezeigwe
F. C. EZEONU
I. O. IGWILO
ANTIDIABETIC PROPERTY AND ANTIOXIDANT POTENTIALS OF ETHANOL EXTRACT OF AZADIRACHTA INDICA LEAF IN STREPTOZOTOCIN-INDUCED DIABETIC RATS
The Bioscientist
Neem leaf
Hypoglycaemia
Streptozotocin
Antioxidant enzymes
Malondialdehyde
title ANTIDIABETIC PROPERTY AND ANTIOXIDANT POTENTIALS OF ETHANOL EXTRACT OF AZADIRACHTA INDICA LEAF IN STREPTOZOTOCIN-INDUCED DIABETIC RATS
title_full ANTIDIABETIC PROPERTY AND ANTIOXIDANT POTENTIALS OF ETHANOL EXTRACT OF AZADIRACHTA INDICA LEAF IN STREPTOZOTOCIN-INDUCED DIABETIC RATS
title_fullStr ANTIDIABETIC PROPERTY AND ANTIOXIDANT POTENTIALS OF ETHANOL EXTRACT OF AZADIRACHTA INDICA LEAF IN STREPTOZOTOCIN-INDUCED DIABETIC RATS
title_full_unstemmed ANTIDIABETIC PROPERTY AND ANTIOXIDANT POTENTIALS OF ETHANOL EXTRACT OF AZADIRACHTA INDICA LEAF IN STREPTOZOTOCIN-INDUCED DIABETIC RATS
title_short ANTIDIABETIC PROPERTY AND ANTIOXIDANT POTENTIALS OF ETHANOL EXTRACT OF AZADIRACHTA INDICA LEAF IN STREPTOZOTOCIN-INDUCED DIABETIC RATS
title_sort antidiabetic property and antioxidant potentials of ethanol extract of azadirachta indica leaf in streptozotocin induced diabetic rats
topic Neem leaf
Hypoglycaemia
Streptozotocin
Antioxidant enzymes
Malondialdehyde
url https://bioscientistjournal.com/index.php/The_Bioscientist/article/view/6
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AT fcezeonu antidiabeticpropertyandantioxidantpotentialsofethanolextractofazadirachtaindicaleafinstreptozotocininduceddiabeticrats
AT ioigwilo antidiabeticpropertyandantioxidantpotentialsofethanolextractofazadirachtaindicaleafinstreptozotocininduceddiabeticrats